vue - npm Package Compare versions

Comparing version 0.8.4 to 0.8.7

CONTRIBUTING.md

@@ -7,3 +7,4 @@ # Vue.js Contributing Guide
 
-- Work in a topic branch and merge against `dev`.
+- Checkout a topic branch from `dev` and merge back against `dev`.
+- Work in the `src` folder and **DO NOT** checkin `dist` in the commits.
 - Squash the commit if there are too many small ones.
@@ -10,0 +11,0 @@ - Follow the [code style](#code-style).

dist/vue.min.js

 /*
- Vue.js v0.8.4
+ Vue.js v0.8.7
  (c) 2014 Evan You
  License: MIT
 */
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i,n,s,o,c,h,f=this.container,p=this.vms,d=this.collection;e&&(this.old&&(n=r(this.old,e)),n>-1?(o=this.oldVMs[n],o.$reused=!0,i=o.$el,e.$index=t,h=!i.parentNode):(i=this.el.cloneNode(!0),i.vue_trans=a.attr(i,"transition",!0),"Object"!==a.typeOf(e)&&(c=!0,e={$value:e}),u(e,"$index",t,!1,!0)),s=p.length>t?p[t].$el:this.ref,s.parentNode||(s=s.vue_ref),h?f.insertBefore(i.vue_ref,s):n>-1?f.insertBefore(i,s):l(i,1,function(){f.insertBefore(i,s)},this.compiler)),o=o||new this.Ctor({el:i,data:e,compilerOptions:{repeat:!0,parentCompiler:this.compiler,delegator:f}}),e?(p.splice(t,0,o),c&&e.__emitter__.on("set",function(e,t){"$value"===e&&(d[o.$index]=t)})):o.$destroy()},updateObject:function(e,t){if(this.object&&e.$key){var i=e.$key,n=e.$value||e;t>0?(delete e.$key,u(e,"$key",i,!1,!0),this.object[i]=n):delete this.object[i],this.object.__emitter__.emit("set",i,n,!0)}},reset:function(e){if(this.childId&&delete this.vm.$[this.childId],this.collection&&(this.collection.__emitter__.off("mutate",this.mutationListener),e))for(var t=this.vms.length;t--;)this.vms[t].$destroy();var i=this.container,n=i.vue_dHandlers;for(var r in n)i.removeEventListener(n[r].event,n[r]);i.vue_dHandlers=null},unbind:function(){this.reset(!0)}}}),e.register("vue/src/directives/on.js",function(e,t,i){function n(e,t,i){for(;e&&e!==t;){if(e[i])return e;e=e.parentNode}}var r=t("../utils");i.exports={isFn:!0,bind:function(){this.compiler.repeat&&(this.el[this.expression]=!0,this.el.vue_viewmodel=this.vm)},update:function(e){if(this.reset(),"function"!=typeof e)return r.warn('Directive "on" expects a function value.');
+var t=this.compiler,i=this.arg,s=this.binding.isExp,o=this.binding.compiler.vm;if(t.repeat&&!this.vm.constructor.super&&"blur"!==i&&"focus"!==i){var a=t.delegator,c=this.expression,l=a.vue_dHandlers[c];if(l)return;l=a.vue_dHandlers[c]=function(t){var i=n(t.target,a,c);i&&(t.el=i,t.targetVM=i.vue_viewmodel,e.call(s?t.targetVM:o,t))},l.event=i,a.addEventListener(i,l)}else{var u=this.vm;this.handler=function(t){t.el=t.currentTarget,t.targetVM=u,e.call(o,t)},this.el.addEventListener(i,this.handler)}},reset:function(){this.el.removeEventListener(this.arg,this.handler),this.handler=null},unbind:function(){this.reset(),this.el.vue_viewmodel=null}}}),e.register("vue/src/directives/model.js",function(e,t,i){function n(e){return o.call(e.options,function(e){return e.selected}).map(function(e){return e.value||e.text})}var r=t("../utils"),s=navigator.userAgent.indexOf("MSIE 9.0")>0,o=[].filter;i.exports={bind:function(){var e=this,t=e.el,i=t.type,n=t.tagName;e.lock=!1,e.ownerVM=e.binding.compiler.vm,e.event=e.compiler.options.lazy||"SELECT"===n||"checkbox"===i||"radio"===i?"change":"input",e.attr="checkbox"===i?"checked":"INPUT"===n||"SELECT"===n||"TEXTAREA"===n?"value":"innerHTML","SELECT"===n&&t.hasAttribute("multiple")&&(this.multi=!0);var o=!1;e.cLock=function(){o=!0},e.cUnlock=function(){o=!1},t.addEventListener("compositionstart",this.cLock),t.addEventListener("compositionend",this.cUnlock),e.set=e.filters?function(){if(!o){var i;try{i=t.selectionStart}catch(n){}e._set(),r.nextTick(function(){void 0!==i&&t.setSelectionRange(i,i)})}}:function(){o||(e.lock=!0,e._set(),r.nextTick(function(){e.lock=!1}))},t.addEventListener(e.event,e.set),s&&(e.onCut=function(){r.nextTick(function(){e.set()})},e.onDel=function(t){(46===t.keyCode||8===t.keyCode)&&e.set()},t.addEventListener("cut",e.onCut),t.addEventListener("keyup",e.onDel))},_set:function(){this.ownerVM.$set(this.key,this.multi?n(this.el):this.el[this.attr])},update:function(e,t){if(t&&void 0===e)return this._set();if(!this.lock){var i=this.el;"SELECT"===i.tagName?(i.selectedIndex=-1,this.multi&&Array.isArray(e)?e.forEach(this.updateSelect,this):this.updateSelect(e)):"radio"===i.type?i.checked=e==i.value:"checkbox"===i.type?i.checked=!!e:i[this.attr]=r.toText(e)}},updateSelect:function(e){for(var t=this.el.options,i=t.length;i--;)if(t[i].value==e){t[i].selected=!0;break}},unbind:function(){var e=this.el;e.removeEventListener(this.event,this.set),e.removeEventListener("compositionstart",this.cLock),e.removeEventListener("compositionend",this.cUnlock),s&&(e.removeEventListener("cut",this.onCut),e.removeEventListener("keyup",this.onDel))}}}),e.register("vue/src/directives/with.js",function(e,t,i){var n;i.exports={bind:function(){this.isEmpty&&this.build()},update:function(e){this.component?this.component.$data=e:this.build(e)},build:function(e){n=n||t("../viewmodel");var i=this.Ctor||n;this.component=new i({el:this.el,data:e,compilerOptions:{parentCompiler:this.compiler}})},unbind:function(){this.component.$destroy()}}}),e.register("vue/src/directives/html.js",function(e,t,i){var n=t("../utils").toText,r=[].slice;i.exports={bind:function(){8===this.el.nodeType&&(this.holder=document.createElement("div"),this.nodes=[])},update:function(e){e=n(e),this.holder?this.swap(e):this.el.innerHTML=e},swap:function(e){for(var t,i=this.el.parentNode,n=this.holder,s=this.nodes,o=s.length;o--;)i.removeChild(s[o]);for(n.innerHTML=e,s=this.nodes=r.call(n.childNodes),o=0,t=s.length;t>o;o++)i.insertBefore(s[o],this.el)}}}),e.register("vue/src/directives/style.js",function(e,t,i){function n(e){return e[1].toUpperCase()}var r=/-([a-z])/g,s=["webkit","moz","ms"];i.exports={bind:function(){var e=this.arg;if(e){var t=e.charAt(0);"$"===t?(e=e.slice(1),this.prefixed=!0):"-"===t&&(e=e.slice(1)),this.prop=e.replace(r,n)}},update:function(e){var t=this.prop;if(t){if(this.el.style[t]=e,this.prefixed){t=t.charAt(0).toUpperCase()+t.slice(1);for(var i=s.length;i--;)this.el.style[s[i]+t]=e}}else this.el.style.cssText=e}}}),e.alias("component-emitter/index.js","vue/deps/emitter/index.js"),e.alias("component-emitter/index.js","emitter/index.js"),e.alias("vue/src/main.js","vue/index.js"),"object"==typeof exports?module.exports=e("vue"):"function"==typeof define&&define.amd?define(function(){return e("vue")}):window.Vue=e("vue")}();

package.json

 {
   "name": "vue",
-  "version": "0.8.4",
+  "version": "0.8.7",
   "author": {
@@ -5,0 +5,0 @@ "name": "Evan You",

README.md

@@ -47,2 +47,3 @@ <p align="center"><a href="http://vuejs.org" target="_blank"><img width="100"src="http://vuejs.org/images/logo.png"></a></p>
 
+- If you have a Vue-related project/component/tool, add it to the [Wiki page](https://github.com/yyx990803/vue/wiki/User-Contributed-Components-&-Tools)!
 - Bugs, suggestions & feature requests: [open an issue](https://github.com/yyx990803/vue/issues)
@@ -49,0 +50,0 @@ - Twitter: [@vuejs](https://twitter.com/vuejs)

src/binding.js

@@ -19,3 +19,3 @@ var batcher = require('./batcher'),
     this.key = key
-    this.instances = []
+    this.dirs = []
     this.subs = []
@@ -35,13 +35,15 @@ this.deps = []
     }
-    batcher.queue(this)
+    if (this.dirs.length || this.subs.length) {
+        batcher.queue(this)
+    }
 }
 
 /**
- *  Actually update the instances.
+ *  Actually update the directives.
  */
 BindingProto._update = function () {
-    var i = this.instances.length,
+    var i = this.dirs.length,
         value = this.val()
     while (i--) {
-        this.instances[i].update(value)
+        this.dirs[i].update(value)
     }
@@ -81,5 +83,5 @@ this.pub()
     this.unbound = true
-    var i = this.instances.length
+    var i = this.dirs.length
     while (i--) {
-        this.instances[i].unbind()
+        this.dirs[i].unbind()
     }
@@ -86,0 +88,0 @@ i = this.deps.length

src/compiler.js

@@ -12,3 +12,3 @@ var Emitter     = require('./emitter'),
     // cache methods
-    slice       = Array.prototype.slice,
+    slice       = [].slice,
     log         = utils.log,
@@ -18,3 +18,3 @@ makeHash    = utils.hash,
     def         = utils.defProtected,
-    hasOwn      = Object.prototype.hasOwnProperty,
+    hasOwn      = ({}).hasOwnProperty,
 
@@ -25,3 +25,3 @@ // hooks to register
         'beforeDestroy', 'afterDestroy',
-        'enteredView', 'leftView'
+        'attached', 'detached'
     ]
@@ -73,3 +73,3 @@
     var parent = compiler.parentCompiler,
-        childId = utils.attr(el, 'component-id')
+        childId = utils.attr(el, 'ref')
     if (parent) {
@@ -103,27 +103,11 @@ parent.childCompilers.push(compiler)
     // observe the data
-    Observer.observe(data, '', compiler.observer)
+    compiler.observeData(data)
     
-    // for repeated items, create an index binding
-    // which should be inenumerable but configurable
+    // for repeated items, create index/key bindings
+    // because they are ienumerable
     if (compiler.repeat) {
-        //data.$index = compiler.repeatIndex
-        def(data, '$index', compiler.repeatIndex, false, true)
         compiler.createBinding('$index')
+        if (data.$key) compiler.createBinding('$key')
     }
 
-    // allow the $data object to be swapped
-    Object.defineProperty(vm, '$data', {
-        enumerable: false,
-        get: function () {
-            return compiler.data
-        },
-        set: function (newData) {
-            var oldData = compiler.data
-            Observer.unobserve(oldData, '', compiler.observer)
-            compiler.data = newData
-            Observer.copyPaths(newData, oldData)
-            Observer.observe(newData, '', compiler.observer)
-        }
-    })
-
     // now parse the DOM, during which we will create necessary bindings
@@ -140,2 +124,3 @@ // and bind the parsed directives
     // done!
+    compiler.rawContent = null
     compiler.init = false
@@ -161,2 +146,9 @@
     if (template) {
+        // collect anything already in there
+        /* jshint boss: true */
+        var child,
+            frag = this.rawContent = document.createDocumentFragment()
+        while (child = el.firstChild) {
+            frag.appendChild(child)
+        }
         // replace option: use the first node in
@@ -172,3 +164,2 @@ // the template directly
         } else {
-            el.innerHTML = ''
             el.appendChild(template.cloneNode(true))
@@ -210,17 +201,6 @@ }
     observer
-        .on('get', function (key) {
-            check(key)
-            DepsParser.catcher.emit('get', bindings[key])
-        })
-        .on('set', function (key, val) {
-            observer.emit('change:' + key, val)
-            check(key)
-            bindings[key].update(val)
-        })
-        .on('mutate', function (key, val, mutation) {
-            observer.emit('change:' + key, val, mutation)
-            check(key)
-            bindings[key].pub()
-        })
-    
+        .on('get', onGet)
+        .on('set', onSet)
+        .on('mutate', onSet)
+
     // register hooks
@@ -241,2 +221,13 @@ hooks.forEach(function (hook) {
 
+    function onGet (key) {
+        check(key)
+        DepsParser.catcher.emit('get', bindings[key])
+    }
+
+    function onSet (key, val, mutation) {
+        observer.emit('change:' + key, val, mutation)
+        check(key)
+        bindings[key].update(val)
+    }
+
     function register (hook, fn) {
@@ -255,2 +246,44 @@ observer.on('hook:' + hook, function () {
 
+CompilerProto.observeData = function (data) {
+
+    var compiler = this,
+        observer = compiler.observer
+
+    // recursively observe nested properties
+    Observer.observe(data, '', observer)
+
+    // also create binding for top level $data
+    // so it can be used in templates too
+    var $dataBinding = compiler.bindings['$data'] = new Binding(compiler, '$data')
+    $dataBinding.update(data)
+
+    // allow $data to be swapped
+    Object.defineProperty(compiler.vm, '$data', {
+        enumerable: false,
+        get: function () {
+            compiler.observer.emit('get', '$data')
+            return compiler.data
+        },
+        set: function (newData) {
+            var oldData = compiler.data
+            Observer.unobserve(oldData, '', observer)
+            compiler.data = newData
+            Observer.copyPaths(newData, oldData)
+            Observer.observe(newData, '', observer)
+            compiler.observer.emit('set', '$data', newData)
+        }
+    })
+
+    // emit $data change on all changes
+    observer
+        .on('set', onSet)
+        .on('mutate', onSet)
+
+    function onSet (key) {
+        if (key !== '$data') {
+            $dataBinding.update(compiler.data)
+        }
+    }
+}
+
 /**
@@ -344,3 +377,3 @@ *  Compile a DOM node (recursive)
     if (attrs && attrs.length) {
-        var attr, isDirective, exps, exp, directive
+        var attr, isDirective, exps, exp, directive, dirname
         // loop through all attributes
@@ -361,3 +394,4 @@ i = attrs.length
                     exp = exps[j]
-                    directive = Directive.parse(attr.name.slice(prefix.length), exp, this, node)
+                    dirname = attr.name.slice(prefix.length)
+                    directive = Directive.parse(dirname, exp, this, node)
                     if (directive) {
@@ -378,3 +412,5 @@ this.bindDirective(directive)
 
-            if (isDirective) node.removeAttribute(attr.name)
+            if (isDirective && dirname !== 'cloak') {
+                node.removeAttribute(attr.name)
+            }
         }
@@ -403,5 +439,14 @@ }
                 partialId = token.key.slice(1).trim()
-                partial = this.getOption('partials', partialId)
-                if (partial) {
-                    el = partial.cloneNode(true)
+                if (partialId === 'yield') {
+                    el = this.rawContent
+                } else {
+                    partial = this.getOption('partials', partialId)
+                    if (partial) {
+                        el = partial.cloneNode(true)
+                    } else {
+                        utils.warn('Unknown partial: ' + partialId)
+                        continue
+                    }
+                }
+                if (el) {
                     // save an Array reference of the partial's nodes
@@ -453,3 +498,3 @@ // so we can compile them AFTER appending the fragment
     // and we're done.
-    if (directive.isEmpty || directive.isLiteral) {
+    if (directive.isEmpty || !directive._update) {
         if (directive.bind) directive.bind()
@@ -479,4 +524,3 @@ return
     }
-
-    binding.instances.push(directive)
+    binding.dirs.push(directive)
     directive.binding = binding
@@ -541,3 +585,3 @@
         data     = compiler.data,
-        ob       = data.__observer__
+        ob       = data.__emitter__
 
@@ -585,7 +629,6 @@ // make sure the key is present in data
     this.markComputed(binding, value)
-    var def = {
+    Object.defineProperty(this.vm, key, {
         get: binding.value.$get,
         set: binding.value.$set
-    }
-    Object.defineProperty(this.vm, key, def)
+    })
 }
@@ -622,7 +665,8 @@
     var opts = this.options,
-        parent = this.parentCompiler
+        parent = this.parentCompiler,
+        globalAssets = config.globalAssets
     return (opts[type] && opts[type][id]) || (
         parent
             ? parent.getOption(type, id)
-            : utils[type] && utils[type][id]
+            : globalAssets[type] && globalAssets[type][id]
     )
@@ -667,3 +711,3 @@ }
     var compiler = this,
-        i, key, dir, instances, binding,
+        i, key, dir, dirs, binding,
         vm          = compiler.vm,
@@ -677,2 +721,5 @@ el          = compiler.el,
 
+    // unobserve data
+    Observer.unobserve(compiler.data, '', compiler.observer)
+
     // unbind all direcitves
@@ -684,6 +731,7 @@ i = directives.length
         // e.g. a directive that refers to a variable on the parent VM
-        // we need to remove it from that binding's instances
-        if (!dir.isEmpty && dir.binding.compiler !== compiler) {
-            instances = dir.binding.instances
-            if (instances) instances.splice(instances.indexOf(dir), 1)
+        // we need to remove it from that binding's directives
+        // * empty and literal bindings do not have binding.
+        if (dir.binding && dir.binding.compiler !== compiler) {
+            dirs = dir.binding.dirs
+            if (dirs) dirs.splice(dirs.indexOf(dir), 1)
         }
@@ -699,9 +747,6 @@ dir.unbind()
 
-    // unbind/unobserve all own bindings
+    // unbind all own bindings
     for (key in bindings) {
         binding = bindings[key]
         if (binding) {
-            if (binding.root) {
-                Observer.unobserve(binding.value, binding.key, compiler.observer)
-            }
             binding.unbind()
@@ -708,0 +753,0 @@ }

src/config.js

 var prefix = 'v',
     specialAttributes = [
         'pre',
+        'ref',
+        'with',
         'text',
         'repeat',
         'partial',
-        'with',
         'component',
-        'component-id',
         'transition'
@@ -11,0 +11,0 @@ ],

src/directive.js

@@ -51,9 +51,2 @@ var utils      = require('./utils'),
 
-    // for literal directives, all we need
-    // is the expression as the value.
-    if (this.isLiteral) {
-        this.value = expression.trim()
-        return
-    }
-
     this.expression = expression.trim()
@@ -131,10 +124,13 @@ this.rawKey     = rawKey
 DirProto.update = function (value, init) {
-    if (!init && value === this.value) return
-    this.value = value
-    if (this._update) {
-        this._update(
-            this.filters
-                ? this.applyFilters(value)
-                : value
-        )
+    var type = utils.typeOf(value)
+    if (init || value !== this.value || type === 'Object' || type === 'Array') {
+        this.value = value
+        if (this._update) {
+            this._update(
+                this.filters
+                    ? this.applyFilters(value)
+                    : value,
+                init
+            )
+        }
     }
@@ -157,12 +153,8 @@ }
  *  Unbind diretive
- *  @ param {Boolean} update
- *    Sometimes we call unbind before an update (i.e. not destroy)
- *    just to teardown previous stuff, in that case we do not want
- *    to null everything.
  */
-DirProto.unbind = function (update) {
+DirProto.unbind = function () {
     // this can be called before the el is even assigned...
-    if (!this.el) return
-    if (this._unbind) this._unbind(update)
-    if (!update) this.vm = this.el = this.binding = this.compiler = null
+    if (!this.el || !this.vm) return
+    if (this._unbind) this._unbind()
+    this.vm = this.el = this.binding = this.compiler = null
 }
@@ -169,0 +161,0 @@

src/directives/html.js

 var toText = require('../utils').toText,
-    slice = Array.prototype.slice
+    slice = [].slice
 
@@ -4,0 +4,0 @@ module.exports = {

src/directives/if.js

@@ -56,3 +56,7 @@ var config = require('../config'),
         this.el.vue_ref = null
+        var ref = this.ref
+        if (ref.parentNode) {
+            ref.parentNode.removeChild(ref)
+        }
     }
 }

src/directives/index.js

 var utils      = require('../utils'),
-    transition = require('../transition')
+    config     = require('../config'),
+    transition = require('../transition'),
+    NumberRE   = /^[\d\.]+$/,
+    CommaRE    = /\\,/g
 
@@ -15,3 +18,7 @@ module.exports = {
     attr: function (value) {
-        this.el.setAttribute(this.arg, value)
+        if (value || value === 0) {
+            this.el.setAttribute(this.arg, value)
+        } else {
+            this.el.removeAttribute(this.arg)
+        }
     },
@@ -44,4 +51,25 @@
         }
+    },
+
+    cloak: {
+        bind: function () {
+            var el = this.el
+            this.compiler.observer.once('hook:ready', function () {
+                el.removeAttribute(config.prefix + '-cloak')
+            })
+        }
+    },
+
+    data: {
+        bind: function () {
+            var val = this.key
+            this.vm.$set(
+                this.arg,
+                NumberRE.test(val)
+                    ? +val
+                    : val.replace(CommaRE, ',')
+            )
+        }
     }
 
 }

src/directives/model.js

 var utils = require('../utils'),
-    isIE9 = navigator.userAgent.indexOf('MSIE 9.0') > 0
+    isIE9 = navigator.userAgent.indexOf('MSIE 9.0') > 0,
+    filter = [].filter
 
+/**
+ *  Returns an array of values from a multiple select
+ */
+function getMultipleSelectOptions (select) {
+    return filter
+        .call(select.options, function (option) {
+            return option.selected
+        })
+        .map(function (option) {
+            return option.value || option.text
+        })
+}
+
 module.exports = {
@@ -14,2 +28,3 @@
         self.lock = false
+        self.ownerVM = self.binding.compiler.vm
 
@@ -25,3 +40,3 @@ // determine what event to listen to
         // determine the attribute to change when updating
-        var attr = self.attr = type === 'checkbox'
+        self.attr = type === 'checkbox'
             ? 'checked'
@@ -32,7 +47,12 @@ : (tag === 'INPUT' || tag === 'SELECT' || tag === 'TEXTAREA')
 
+        // select[multiple] support
+        if(tag === 'SELECT' && el.hasAttribute('multiple')) {
+            this.multi = true
+        }
+
         var compositionLock = false
-        this.cLock = function () {
+        self.cLock = function () {
             compositionLock = true
         }
-        this.cUnlock = function () {
+        self.cUnlock = function () {
             compositionLock = false
@@ -54,6 +74,6 @@ }
                 var cursorPos
-                try {
-                    cursorPos = el.selectionStart
-                } catch (e) {}
-                self.vm.$set(self.key, el[attr])
+                try { cursorPos = el.selectionStart } catch (e) {}
+
+                self._set()
+
                 // since updates are async
@@ -71,3 +91,5 @@ // we need to reset cursor position async too
                 self.lock = true
-                self.vm.$set(self.key, el[attr])
+
+                self._set()
+
                 utils.nextTick(function () {
@@ -98,19 +120,25 @@ self.lock = false
 
-    update: function (value) {
+    _set: function () {
+        this.ownerVM.$set(
+            this.key, this.multi
+                ? getMultipleSelectOptions(this.el)
+                : this.el[this.attr]
+        )
+    },
+
+    update: function (value, init) {
+        /* jshint eqeqeq: false */
+        // sync back inline value if initial data is undefined
+        if (init && value === undefined) {
+            return this._set()
+        }
         if (this.lock) return
-        /* jshint eqeqeq: false */
-        var self = this,
-            el   = self.el
+        var el = this.el
         if (el.tagName === 'SELECT') { // select dropdown
-            // setting <select>'s value in IE9 doesn't work
-            var o = el.options,
-                i = o.length,
-                index = -1
-            while (i--) {
-                if (o[i].value == value) {
-                    index = i
-                    break
-                }
+            el.selectedIndex = -1
+            if(this.multi && Array.isArray(value)) {
+                value.forEach(this.updateSelect, this)
+            } else {
+                this.updateSelect(value)
             }
-            o.selectedIndex = index
         } else if (el.type === 'radio') { // radio button
@@ -121,6 +149,20 @@ el.checked = value == el.value
         } else {
-            el[self.attr] = utils.toText(value)
+            el[this.attr] = utils.toText(value)
         }
     },
 
+    updateSelect: function (value) {
+        /* jshint eqeqeq: false */
+        // setting <select>'s value in IE9 doesn't work
+        // we have to manually loop through the options
+        var options = this.el.options,
+            i = options.length
+        while (i--) {
+            if (options[i].value == value) {
+                options[i].selected = true
+                break
+            }
+        }
+    },
+
     unbind: function () {
@@ -127,0 +169,0 @@ var el = this.el

src/directives/on.js

@@ -25,3 +25,3 @@ var utils = require('../utils')
     update: function (handler) {
-        this.unbind(true)
+        this.reset()
         if (typeof handler !== 'function') {
@@ -76,7 +76,11 @@ return utils.warn('Directive "on" expects a function value.')
 
-    unbind: function (update) {
+    reset: function () {
         this.el.removeEventListener(this.arg, this.handler)
         this.handler = null
-        if (!update) this.el.vue_viewmodel = null
+    },
+
+    unbind: function () {
+        this.reset()
+        this.el.vue_viewmodel = null
     }
 }

src/directives/repeat.js

 var Observer   = require('../observer'),
-    Emitter    = require('../emitter'),
     utils      = require('../utils'),
     config     = require('../config'),
     transition = require('../transition'),
+    def        = utils.defProtected,
     ViewModel // lazy def to avoid circular dependency
@@ -15,6 +15,7 @@
     push: function (m) {
-        var i, l = m.args.length,
+        var l = m.args.length,
             base = this.collection.length - l
-        for (i = 0; i < l; i++) {
+        for (var i = 0; i < l; i++) {
             this.buildItem(m.args[i], base + i)
+            this.updateObject(m.args[i], 1)
         }
@@ -25,7 +26,13 @@ },
         var vm = this.vms.pop()
-        if (vm) vm.$destroy()
+        if (vm) {
+            vm.$destroy()
+            this.updateObject(vm.$data, -1)
+        }
     },
 
     unshift: function (m) {
-        m.args.forEach(this.buildItem, this)
+        for (var i = 0, l = m.args.length; i < l; i++) {
+            this.buildItem(m.args[i], i)
+            this.updateObject(m.args[i], 1)
+        }
     },
@@ -35,3 +42,6 @@
         var vm = this.vms.shift()
-        if (vm) vm.$destroy()
+        if (vm) {
+            vm.$destroy()
+            this.updateObject(vm.$data, -1)
+        }
     },
@@ -47,5 +57,7 @@
             removedVMs[i].$destroy()
+            this.updateObject(removedVMs[i].$data, -1)
         }
         for (i = 0; i < added; i++) {
             this.buildItem(m.args[i + 2], index + i)
+            this.updateObject(m.args[i + 2], 1)
         }
@@ -85,2 +97,31 @@ },
 
+/**
+ *  Convert an Object to a v-repeat friendly Array
+ */
+function objectToArray (obj) {
+    var res = [], val, data
+    for (var key in obj) {
+        val = obj[key]
+        data = utils.typeOf(val) === 'Object'
+            ? val
+            : { $value: val }
+        def(data, '$key', key, false, true)
+        res.push(data)
+    }
+    return res
+}
+
+/**
+ *  Find an object or a wrapped data object
+ *  from an Array
+ */
+function indexOf (arr, obj) {
+    for (var i = 0, l = arr.length; i < l; i++) {
+        if (arr[i] === obj || (obj.$value && arr[i].$value === obj.$value)) {
+            return i
+        }
+    }
+    return -1
+}
+
 module.exports = {
@@ -99,3 +140,3 @@
         // extract child Id, if any
-        this.childId = utils.attr(el, 'component-id')
+        this.childId = utils.attr(el, 'ref')
 
@@ -116,5 +157,10 @@ // create a comment node as a reference node for DOM insertions
             if (method !== 'push' && method !== 'pop') {
-                self.updateIndex()
+                // update index
+                var i = arr.length
+                while (i--) {
+                    arr[i].$index = i
+                }
             }
             if (method === 'push' || method === 'unshift' || method === 'splice') {
+                // recalculate dependency
                 self.changed()
@@ -128,3 +174,17 @@ }
 
-        this.unbind(true)
+        if (
+            collection === this.collection ||
+            collection === this.object
+        ) return
+
+        if (utils.typeOf(collection) === 'Object') {
+            if (this.object) {
+                delete this.object.$repeater
+            }
+            this.object = collection
+            collection = objectToArray(collection)
+            def(this.object, '$repeater', collection, false, true)
+        }
+
+        this.reset()
         // attach an object to container to hold handlers
@@ -139,2 +199,8 @@ this.container.vue_dHandlers = utils.hash()
         }
+
+        // keep reference of old data and VMs
+        // so we can reuse them if possible
+        this.old = this.collection
+        var oldVMs = this.oldVMs = this.vms
+
         collection = this.collection = collection || []
@@ -148,6 +214,6 @@ this.vms = []
         // the collection has been augmented during Binding.set()
-        if (!collection.__observer__) Observer.watchArray(collection, null, new Emitter())
-        collection.__observer__.on('mutate', this.mutationListener)
+        if (!collection.__emitter__) Observer.watchArray(collection)
+        collection.__emitter__.on('mutate', this.mutationListener)
 
-        // create child-vms and append to DOM
+        // create new VMs and append to DOM
         if (collection.length) {
@@ -157,2 +223,16 @@ collection.forEach(this.buildItem, this)
         }
+
+        // destroy unused old VMs
+        if (oldVMs) {
+            var i = oldVMs.length, vm
+            while (i--) {
+                vm = oldVMs[i]
+                if (vm.$reused) {
+                    vm.$reused = false
+                } else {
+                    vm.$destroy()
+                }
+            }
+        }
+        this.old = this.oldVMs = null
     },
@@ -171,2 +251,3 @@
         setTimeout(function () {
+            if (!self.compiler) return
             self.compiler.parseDeps()
@@ -184,7 +265,6 @@ self.queued = false
 
-        var el  = this.el.cloneNode(true),
-            ctn = this.container,
+        var ctn = this.container,
             vms = this.vms,
             col = this.collection,
-            ref, item
+            el, i, ref, item, primitive, detached
 
@@ -194,2 +274,34 @@ // append node into DOM first
         if (data) {
+
+            if (this.old) {
+                i = indexOf(this.old, data)
+            }
+
+            if (i > -1) { // existing, reuse the old VM
+
+                item = this.oldVMs[i]
+                // mark, so it won't be destroyed
+                item.$reused = true
+                el = item.$el
+                // don't forget to update index
+                data.$index = index
+                // existing VM's el can possibly be detached by v-if.
+                // in that case don't insert.
+                detached = !el.parentNode
+
+            } else { // new data, need to create new VM
+
+                el = this.el.cloneNode(true)
+                // process transition info before appending
+                el.vue_trans = utils.attr(el, 'transition', true)
+                // wrap primitive element in an object
+                if (utils.typeOf(data) !== 'Object') {
+                    primitive = true
+                    data = { $value: data }
+                }
+                // define index
+                def(data, '$index', index, false, true)
+
+            }
+
             ref = vms.length > index
@@ -200,10 +312,20 @@ ? vms[index].$el
             if (!ref.parentNode) ref = ref.vue_ref
-            // process transition info before appending
-            el.vue_trans = utils.attr(el, 'transition', true)
-            transition(el, 1, function () {
-                ctn.insertBefore(el, ref)
-            }, this.compiler)
+            if (!detached) {
+                if (i > -1) {
+                    // no need to transition existing node
+                    ctn.insertBefore(el, ref)
+                } else {
+                    // insert new node with transition
+                    transition(el, 1, function () {
+                        ctn.insertBefore(el, ref)
+                    }, this.compiler)
+                }
+            } else {
+                // detached by v-if
+                // just move the comment ref node
+                ctn.insertBefore(el.vue_ref, ref)
+            }
         }
 
-        item = new this.Ctor({
+        item = item || new this.Ctor({
             el: el,
@@ -213,3 +335,2 @@ data: data,
                 repeat: true,
-                repeatIndex: index,
                 parentCompiler: this.compiler,
@@ -226,7 +347,10 @@ delegator: ctn
             vms.splice(index, 0, item)
-            // in case `$destroy` is called directly on a repeated vm
-            // make sure the vm's data is properly removed
-            item.$compiler.observer.on('hook:afterDestroy', function () {
-                col.remove(data)
-            })
+            // for primitive values, listen for value change
+            if (primitive) {
+                data.__emitter__.on('set', function (key, val) {
+                    if (key === '$value') {
+                        col[item.$index] = val
+                    }
+                })
+            }
         }
@@ -236,12 +360,22 @@ },
     /**
-     *  Update index of each item after a mutation
+     *  Sync changes in the $repeater Array
+     *  back to the represented Object
      */
-    updateIndex: function () {
-        var i = this.vms.length
-        while (i--) {
-            this.vms[i].$data.$index = i
+    updateObject: function (data, action) {
+        if (this.object && data.$key) {
+            var key = data.$key,
+                val = data.$value || data
+            if (action > 0) { // new property
+                // make key ienumerable
+                delete data.$key
+                def(data, '$key', key, false, true)
+                this.object[key] = val
+            } else {
+                delete this.object[key]
+            }
+            this.object.__emitter__.emit('set', key, val, true)
         }
     },
 
-    unbind: function () {
+    reset: function (destroyAll) {
         if (this.childId) {
@@ -251,6 +385,8 @@ delete this.vm.$[this.childId]
         if (this.collection) {
-            this.collection.__observer__.off('mutate', this.mutationListener)
-            var i = this.vms.length
-            while (i--) {
-                this.vms[i].$destroy()
+            this.collection.__emitter__.off('mutate', this.mutationListener)
+            if (destroyAll) {
+                var i = this.vms.length
+                while (i--) {
+                    this.vms[i].$destroy()
+                }
             }
@@ -264,3 +400,7 @@ }
         ctn.vue_dHandlers = null
+    },
+
+    unbind: function () {
+        this.reset(true)
     }
 }

src/directives/style.js

@@ -11,4 +11,5 @@ var camelRE = /-([a-z])/g,
     bind: function () {
-        var prop = this.arg,
-            first = prop.charAt(0)
+        var prop = this.arg
+        if (!prop) return
+        var first = prop.charAt(0)
         if (first === '$') {
@@ -27,9 +28,13 @@ // properties that start with $ will be auto-prefixed
         var prop = this.prop
-        this.el.style[prop] = value
-        if (this.prefixed) {
-            prop = prop.charAt(0).toUpperCase() + prop.slice(1)
-            var i = prefixes.length
-            while (i--) {
-                this.el.style[prefixes[i] + prop] = value
+        if (prop) {
+            this.el.style[prop] = value
+            if (this.prefixed) {
+                prop = prop.charAt(0).toUpperCase() + prop.slice(1)
+                var i = prefixes.length
+                while (i--) {
+                    this.el.style[prefixes[i] + prop] = value
+                }
             }
+        } else {
+            this.el.style.cssText = value
         }
@@ -36,0 +41,0 @@ }

src/exp-parser.js

@@ -1,4 +0,6 @@
-var utils = require('./utils'),
-    stringSaveRE = /"(?:[^"\\]|\\.)*"|'(?:[^'\\]|\\.)*'/g,
-    stringRestoreRE = /"(\d+)"/g
+var utils           = require('./utils'),
+    stringSaveRE    = /"(?:[^"\\]|\\.)*"|'(?:[^'\\]|\\.)*'/g,
+    stringRestoreRE = /"(\d+)"/g,
+    constructorRE   = new RegExp('constructor'.split('').join('[\'"+, ]*')),
+    unicodeRE       = /\\u\d\d\d\d/
 
@@ -112,2 +114,7 @@ // Variable extraction scooped from https://github.com/RubyLouvre/avalon
     parse: function (exp, compiler) {
+        // unicode and 'constructor' are not allowed for XSS security.
+        if (unicodeRE.test(exp) || constructorRE.test(exp)) {
+            utils.warn('Unsafe expression: ' + exp)
+            return function () {}
+        }
         // extract variable names
@@ -114,0 +121,0 @@ var vars = getVariables(exp)

src/main.js

 var config      = require('./config'),
     ViewModel   = require('./viewmodel'),
-    directives  = require('./directives'),
-    filters     = require('./filters'),
-    utils       = require('./utils')
+    utils       = require('./utils'),
+    makeHash    = utils.hash,
+    assetTypes  = ['directive', 'filter', 'partial', 'transition', 'component']
 
+ViewModel.options = config.globalAssets = {
+    directives  : require('./directives'),
+    filters     : require('./filters'),
+    partials    : makeHash(),
+    transitions : makeHash(),
+    components  : makeHash()
+}
+
 /**
+ *  Expose asset registration methods
+ */
+assetTypes.forEach(function (type) {
+    ViewModel[type] = function (id, value) {
+        var hash = this.options[type + 's']
+        if (!hash) {
+            hash = this.options[type + 's'] = makeHash()
+        }
+        if (!value) return hash[id]
+        if (type === 'partial') {
+            value = utils.toFragment(value)
+        } else if (type === 'component') {
+            value = utils.toConstructor(value)
+        }
+        hash[id] = value
+        return this
+    }
+})
+
+/**
  *  Set config options
@@ -24,46 +52,31 @@ */
 /**
- *  Allows user to register/retrieve a directive definition
+ *  Expose internal modules for plugins
  */
-ViewModel.directive = function (id, fn) {
-    if (!fn) return directives[id]
-    directives[id] = fn
-    return this
+ViewModel.require = function (path) {
+    return require('./' + path)
 }
 
 /**
- *  Allows user to register/retrieve a filter function
+ *  Expose an interface for plugins
  */
-ViewModel.filter = function (id, fn) {
-    if (!fn) return filters[id]
-    filters[id] = fn
-    return this
-}
+ViewModel.use = function (plugin) {
+    if (typeof plugin === 'string') {
+        try {
+            plugin = require(plugin)
+        } catch (e) {
+            return utils.warn('Cannot find plugin: ' + plugin)
+        }
+    }
 
-/**
- *  Allows user to register/retrieve a ViewModel constructor
- */
-ViewModel.component = function (id, Ctor) {
-    if (!Ctor) return utils.components[id]
-    utils.components[id] = utils.toConstructor(Ctor)
-    return this
-}
+    // additional parameters
+    var args = [].slice.call(arguments, 1)
+    args.unshift(ViewModel)
 
-/**
- *  Allows user to register/retrieve a template partial
- */
-ViewModel.partial = function (id, partial) {
-    if (!partial) return utils.partials[id]
-    utils.partials[id] = utils.toFragment(partial)
-    return this
+    if (typeof plugin.install === 'function') {
+        plugin.install.apply(plugin, args)
+    } else {
+        plugin.apply(null, args)
+    }
 }
 
-/**
- *  Allows user to register/retrieve a transition definition object
- */
-ViewModel.transition = function (id, transition) {
-    if (!transition) return utils.transitions[id]
-    utils.transitions[id] = transition
-    return this
-}
-
 ViewModel.extend = extend
@@ -112,2 +125,8 @@ ViewModel.nextTick = utils.nextTick
     ExtendedVM.options = options
+
+    // allow extended VM to add its own assets
+    assetTypes.forEach(function (type) {
+        ExtendedVM[type] = ViewModel[type]
+    })
+
     return ExtendedVM
@@ -130,3 +149,3 @@ }
 function inheritOptions (child, parent, topLevel) {
-    child = child || utils.hash()
+    child = child || makeHash()
     if (!parent) return child
@@ -133,0 +152,0 @@ for (var key in parent) {

src/observer.js

@@ -9,3 +9,3 @@ /* jshint proto:true */
     def      = utils.defProtected,
-    slice    = Array.prototype.slice,
+    slice    = [].slice,
 
@@ -36,3 +36,3 @@ // types
         var result = Array.prototype[method].apply(this, arguments)
-        this.__observer__.emit('mutate', this.__observer__.path, this, {
+        this.__emitter__.emit('mutate', null, this, {
             method: method,
@@ -46,50 +46,57 @@ args: slice.call(arguments),
 
-// Augment it with several convenience methods
-var extensions = {
-    remove: function (index) {
-        if (typeof index === 'function') {
-            var i = this.length,
-                removed = []
-            while (i--) {
-                if (index(this[i])) {
-                    removed.push(this.splice(i, 1)[0])
-                }
+/**
+ *  Convenience method to remove an element in an Array
+ *  This will be attached to observed Array instances
+ */
+function removeElement (index) {
+    if (typeof index === 'function') {
+        var i = this.length,
+            removed = []
+        while (i--) {
+            if (index(this[i])) {
+                removed.push(this.splice(i, 1)[0])
             }
-            return removed.reverse()
-        } else {
-            if (typeof index !== 'number') {
-                index = this.indexOf(index)
-            }
-            if (index > -1) {
-                return this.splice(index, 1)[0]
-            }
         }
-    },
-    replace: function (index, data) {
-        if (typeof index === 'function') {
-            var i = this.length,
-                replaced = [],
-                replacer
-            while (i--) {
-                replacer = index(this[i])
-                if (replacer !== undefined) {
-                    replaced.push(this.splice(i, 1, replacer)[0])
-                }
-            }
-            return replaced.reverse()
-        } else {
-            if (typeof index !== 'number') {
-                index = this.indexOf(index)
-            }
-            if (index > -1) {
-                return this.splice(index, 1, data)[0]
-            }
+        return removed.reverse()
+    } else {
+        if (typeof index !== 'number') {
+            index = this.indexOf(index)
         }
+        if (index > -1) {
+            return this.splice(index, 1)[0]
+        }
     }
 }
 
-for (var method in extensions) {
-    def(ArrayProxy, method, extensions[method], !hasProto)
+/**
+ *  Convenience method to replace an element in an Array
+ *  This will be attached to observed Array instances
+ */
+function replaceElement (index, data) {
+    if (typeof index === 'function') {
+        var i = this.length,
+            replaced = [],
+            replacer
+        while (i--) {
+            replacer = index(this[i])
+            if (replacer !== undefined) {
+                replaced.push(this.splice(i, 1, replacer)[0])
+            }
+        }
+        return replaced.reverse()
+    } else {
+        if (typeof index !== 'number') {
+            index = this.indexOf(index)
+        }
+        if (index > -1) {
+            return this.splice(index, 1, data)[0]
+        }
+    }
 }
 
+// Augment the ArrayProxy with convenience methods
+def(ArrayProxy, 'remove', removeElement, !hasProto)
+def(ArrayProxy, 'set', replaceElement, !hasProto)
+def(ArrayProxy, 'replace', replaceElement, !hasProto)
+
 /**
@@ -108,9 +115,8 @@ *  Watch an Object, recursive.
  */
-function watchArray (arr, path) {
-    var observer = arr.__observer__
-    if (!observer) {
-        observer = new Emitter()
-        def(arr, '__observer__', observer)
+function watchArray (arr) {
+    var emitter = arr.__emitter__
+    if (!emitter) {
+        emitter = new Emitter()
+        def(arr, '__emitter__', emitter)
     }
-    observer.path = path
     if (hasProto) {
@@ -132,3 +138,8 @@ arr.__proto__ = ArrayProxy
     var keyPrefix = key.charAt(0)
-    if ((keyPrefix === '$' || keyPrefix === '_') && key !== '$index') {
+    if (
+        (keyPrefix === '$' || keyPrefix === '_') &&
+        key !== '$index' &&
+        key !== '$key' &&
+        key !== '$value'
+    ) {
         return
@@ -139,9 +150,7 @@ }
     // a first batch of set events.
-    var observer = obj.__observer__,
-        values   = observer.values,
-        val      = values[key] = obj[key]
-    observer.emit('set', key, val)
-    if (Array.isArray(val)) {
-        observer.emit('set', key + '.length', val.length)
-    }
+    var emitter = obj.__emitter__,
+        values  = emitter.values
+
+    init(obj[key])
+
     Object.defineProperty(obj, key, {
@@ -152,3 +161,3 @@ get: function () {
             if (pub.shouldGet && typeOf(value) !== OBJECT) {
-                observer.emit('get', key)
+                emitter.emit('get', key)
             }
@@ -159,10 +168,18 @@ return value
             var oldVal = values[key]
-            unobserve(oldVal, key, observer)
-            values[key] = newVal
+            unobserve(oldVal, key, emitter)
             copyPaths(newVal, oldVal)
-            observer.emit('set', key, newVal)
-            observe(newVal, key, observer)
+            // an immediate property should notify its parent
+            // to emit set for itself too
+            init(newVal, true)
         }
     })
-    observe(val, key, observer)
+
+    function init (val, propagate) {
+        values[key] = val
+        emitter.emit('set', key, val, propagate)
+        if (Array.isArray(val)) {
+            emitter.emit('set', key + '.length', val.length)
+        }
+        observe(val, key, emitter)
+    }
 }
@@ -187,3 +204,3 @@
     var type = typeOf(obj),
-        emitter = obj && obj.__observer__
+        emitter = obj && obj.__emitter__
     if (type === ARRAY) {
@@ -238,3 +255,3 @@ emitter.emit('set', 'length', obj.length)
             obj[sec] = {}
-            if (obj.__observer__) convert(obj, sec)
+            if (obj.__emitter__) convert(obj, sec)
         }
@@ -247,3 +264,3 @@ obj = obj[sec]
             obj[sec] = undefined
-            if (obj.__observer__) convert(obj, sec)
+            if (obj.__emitter__) convert(obj, sec)
         }
@@ -258,10 +275,19 @@ }
 function observe (obj, rawPath, observer) {
+
     if (!isWatchable(obj)) return
+
     var path = rawPath ? rawPath + '.' : '',
-        ob, alreadyConverted = !!obj.__observer__
+        alreadyConverted = !!obj.__emitter__,
+        emitter
+
     if (!alreadyConverted) {
-        def(obj, '__observer__', new Emitter())
+        def(obj, '__emitter__', new Emitter())
     }
-    ob = obj.__observer__
-    ob.values = ob.values || utils.hash()
+
+    emitter = obj.__emitter__
+    emitter.values = emitter.values || utils.hash()
+
+    // setup proxy listeners on the parent observer.
+    // we need to keep reference to them so that they
+    // can be removed when the object is un-observed.
     observer.proxies = observer.proxies || {}
@@ -272,4 +298,10 @@ var proxies = observer.proxies[path] = {
         },
-        set: function (key, val) {
+        set: function (key, val, propagate) {
             observer.emit('set', path + key, val)
+            // also notify observer that the object itself changed
+            // but only do so when it's a immediate property. this
+            // avoids duplicate event firing.
+            if (rawPath && propagate) {
+                observer.emit('set', rawPath, obj, true)
+            }
         },
@@ -288,7 +320,13 @@ mutate: function (key, val, mutation) {
     }
-    ob
+
+    // attach the listeners to the child observer.
+    // now all the events will propagate upwards.
+    emitter
         .on('get', proxies.get)
         .on('set', proxies.set)
         .on('mutate', proxies.mutate)
+
     if (alreadyConverted) {
+        // for objects that have already been converted,
+        // emit set events for everything inside
         emitSet(obj)
@@ -309,10 +347,16 @@ } else {
 function unobserve (obj, path, observer) {
-    if (!obj || !obj.__observer__) return
+
+    if (!obj || !obj.__emitter__) return
+
     path = path ? path + '.' : ''
     var proxies = observer.proxies[path]
     if (!proxies) return
-    obj.__observer__
+
+    // turn off listeners
+    obj.__emitter__
         .off('get', proxies.get)
         .off('set', proxies.set)
         .off('mutate', proxies.mutate)
+
+    // remove reference
     observer.proxies[path] = null
@@ -319,0 +363,0 @@ }

src/transition.js

@@ -26,3 +26,3 @@ var endEvent   = sniffTransitionEndEvent(),
         cb()
-        compiler.execHook(stage > 0 ? 'enteredView' : 'leftView')
+        compiler.execHook(stage > 0 ? 'attached' : 'detached')
     }
@@ -96,16 +96,21 @@
 
-        // trigger hide transition
-        classList.add(config.leaveClass)
-        var onEnd = function (e) {
-            if (e.target === el) {
-                el.removeEventListener(endEvent, onEnd)
-                el.vue_trans_cb = null
-                // actually remove node here
-                changeState()
-                classList.remove(config.leaveClass)
+        if (el.offsetWidth || el.offsetHeight) {
+            // trigger hide transition
+            classList.add(config.leaveClass)
+            var onEnd = function (e) {
+                if (e.target === el) {
+                    el.removeEventListener(endEvent, onEnd)
+                    el.vue_trans_cb = null
+                    // actually remove node here
+                    changeState()
+                    classList.remove(config.leaveClass)
+                }
             }
+            // attach transition end listener
+            el.addEventListener(endEvent, onEnd)
+            el.vue_trans_cb = onEnd
+        } else {
+            // directly remove invisible elements
+            changeState()
         }
-        // attach transition end listener
-        el.addEventListener(endEvent, onEnd)
-        el.vue_trans_cb = onEnd
         return codes.CSS_L
@@ -112,0 +117,0 @@

src/utils.js

 var config    = require('./config'),
     attrs     = config.attrs,
-    toString  = Object.prototype.toString,
-    join      = Array.prototype.join,
-    console   = window.console,
+    toString  = ({}).toString,
+    join      = [].join,
+    win       = window,
+    console   = win.console,
 
@@ -11,24 +12,16 @@ hasClassList = 'classList' in document.documentElement,
 var defer =
-    window.requestAnimationFrame ||
-    window.webkitRequestAnimationFrame ||
-    window.setTimeout
+    win.requestAnimationFrame ||
+    win.webkitRequestAnimationFrame ||
+    win.setTimeout
 
-/**
- *  Create a prototype-less object
- *  which is a better hash/map
- */
-function makeHash () {
-    return Object.create(null)
-}
-
 var utils = module.exports = {
 
-    hash: makeHash,
+    /**
+     *  Create a prototype-less object
+     *  which is a better hash/map
+     */
+    hash: function () {
+        return Object.create(null)
+    },
 
-    // global storage for user-registered
-    // vms, partials and transitions
-    components  : makeHash(),
-    partials    : makeHash(),
-    transitions : makeHash(),
-
     /**
@@ -77,12 +70,15 @@ *  get an attribute and remove it.
     /**
-     *  Make sure only strings and numbers are output to html
-     *  output empty string is value is not string or number
+     *  Make sure only strings, booleans, numbers and
+     *  objects are output to html. otherwise, ouput empty string.
      */
     toText: function (value) {
         /* jshint eqeqeq: false */
-        return (typeof value === 'string' ||
-            typeof value === 'boolean' ||
-            (typeof value === 'number' && value == value)) // deal with NaN
-            ? value
-            : ''
+        var type = typeof value
+        return (type === 'string' ||
+            type === 'boolean' ||
+            (type === 'number' && value == value)) // deal with NaN
+                ? value
+                : type === 'object' && value !== null
+                    ? JSON.stringify(value)
+                    : ''
     },
@@ -134,3 +130,5 @@
         while (child = node.firstChild) {
-            frag.appendChild(child)
+            if (node.nodeType === 1) {
+                frag.appendChild(child)
+            }
         }
@@ -137,0 +135,0 @@ return frag

src/viewmodel.js

@@ -27,4 +27,3 @@ var Compiler   = require('./compiler'),
     var path = key.split('.'),
-        obj = getTargetVM(this, path)
-    if (!obj) return
+        obj = this
     for (var d = 0, l = path.length - 1; d < l; d++) {
@@ -163,14 +162,2 @@ obj = obj[path[d]]
 
-/**
- *  If a VM doesn't contain a path, go up the prototype chain
- *  to locate the ancestor that has it.
- */
-function getTargetVM (vm, path) {
-    var baseKey = path[0],
-        binding = vm.$compiler.bindings[baseKey]
-    return binding
-        ? binding.compiler.vm
-        : null
-}
-
 module.exports = ViewModel

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Improved metrics

Total package byte prevSize

242841

increased by9.23%

Number of package files

30

increased by3.45%

Lines of code

6578

increased by9.07%

Number of lines in readme file

61

increased by1.67%

Worsened metrics

Number of low supply chain risk alerts

11

increased by57.14%

No dependency changes