set-object-path - npm Package Compare versions

Comparing version 0.0.0 to 2.0.0

index.js

@@ -1,68 +0,38 @@
-/**
- * This is a HOF that is used by our React components to build onChange handlers
- * for a given key path into the model.
- */
-module.exports = updatePath
+module.exports = set;
 
-function updatePath (path, value) {
-  path = toPath(path)
-  var curr = this
-  var last = path.length - 1
-  for (var i = 0; i < last; i++) {
-    var k = path[i]
-    if (!curr[k]) {
-      if (typeof path[i + 1] === 'number') {
-        curr = curr[k] = []
-      } else {
-        curr = curr[k] = {}
-      }
-    } else {
-      curr = curr[k]
-    }
+function set (context, path, value) {
+  if (path.indexOf('.') == -1 && path.indexOf('[') == -1) {
+    context[path] = value;
+    return;
   }
-  curr[path[last]] = value
-}
 
-updatePath.bind = function (o, path, value) {
-  if (typeof o !== 'object') {
-    throw new TypeError('setPath must be bound to an object')
-  }
-  var updatePath = this
-  if (path && value)
-    return function () { updatePath.call(o, path, value) }
-  else if (path)
-    return function (value) { updatePath.call(o, path, value) }
+  var crumbs = parseCrumbs(path);
+  var i = -1;
+  var len = crumbs.length;
+  var result;
 
-  var fn = function (path, value) { updatePath.call(o, path, value) }
-  fn.setter = updatePath.setter
-  fn.prefix = updatePath.prefix
-  return fn
-}
+  while (++i < len) {
+    if (crumbs[i].length == 0) continue;
 
-updatePath.setter = function (path) {
-  var updatePath = this
-  return function (value) {
-    updatePath.call(this, path, value)
-  }
-}
+    if (i + 1 < len && context[crumbs[i]] == undefined) {
+      context[crumbs[i]] = {};
+    }
 
-updatePath.prefix = function (prefix) {
-  var updatePath = this
-  prefix = toPath(prefix)
-  prefixedUpdatePath.setter = function (path) {
-    path = prefix.concat(toPath(path))
-    return function (value) {
-      updatePath.call(this, path, value)
+    if (i + 1 < len) {
+      context = context[crumbs[i]];
+      continue;
     }
+
+    context[crumbs[i]] = value;
   }
+}
 
-  return prefixedUpdatePath
+function parseCrumbs (path) {
+  var crumbs = path.split(/\.|\[|\]/g);
 
-  function prefixedUpdatePath (path, value) {
-    updatePath.call(this, prefix.concat(toPath(path)), value)
+  if (crumbs[crumbs.length - 1] == "") {
+    crumbs = crumbs.slice(0, -1);
   }
-}
 
-function toPath (it) {
-  return (typeof it === 'string') ? it.split('.') : it
+  return crumbs;
 }

package.json

 {
   "name": "set-object-path",
-  "version": "0.0.0",
-  "description": "functions for setting values deep insde nested objects",
+  "version": "2.0.0",
+  "description": "Set given (deep) object path",
   "main": "index.js",
-  "dependencies": {},
-  "devDependencies": {
-    "tape": "~2.3.2",
-    "markdown-code-blocks": "0.0.1"
-  },
   "scripts": {
-    "test": "markdown-code-blocks -t javascript < README.md | node"
+    "test": "node test"
   },
+  "keywords": [
+    "object",
+    "path",
+    "change",
+    "set object path"
+  ],
   "repository": {
-    "type": "git",
-    "url": "git://github.com/grncdr/js-update-path.git"
+    "url": "[e-mail]:azer/set-object-path.git",
+    "type": "git"
   },
-  "bugs": {
-    "type": "git",
-    "url": "git://github.com/grncdr/js-update-path/issues"
-  },
-  "homepage": "https://github.com/grncdr/js-update-path",
-  "keywords": [],
-  "author": "Stephen Sugden <[e-mail]>",
-  "license": "MIT"
+  "author": "azer",
+  "license": "BSD",
+  "devDependencies": {
+    "prova": "^2.1.2"
+  }
 }

README.md

@@ -1,94 +0,27 @@
-# set-object-path
+## set-object-path
 
-Functions for setting values deep insde nested objects.
+Set given (deep) object path
 
-I use this for generating callbacks that can modify data in a restricted scope
-of a larger object.
+See also: [get-object-path](http://github.com/azer/get-object-path), [change-object](http://github.com/azer/change-object)
 
-## Synopsis
+## Install
 
-```javascript
-var test = require('tape')
-var setPath = require('./')
+```bash
+$ npm install set-object-path
+```
 
-test('use .call to pass root object', function (t) {
-  var o = {}
-  setPath.call(o, 'a.b.c', 2)
-  t.deepEqual(o, {a: {b: {c: 2}}})
-  t.end()
-})
+## Usage
 
-test('use array-paths instead of dot-separated strings', function (t) {
-  var o = {}
-  setPath.call(o, ['people', 'Mr. Jones'], "is back")
-  t.deepEqual(o, {
-    people: {
-      'Mr. Jones': 'is back'
-    }
-  })
-  t.end()
-})
+```js
+var set = require('set-object-path')
+var data = {
+  title: 'My Products',
+  products: {
+    eggs: [{ kind: 'white', amount: 300 }, { kind: 'brown', amount: 200 }]
+  }
+}
 
-test('use .setter to pass path implicitly', function (t) {
-  var setName = setPath.setter('name')
-  var my = {}
-  setName.call(my, 'Stephen')
-  t.equal(my.name, 'Stephen')
-  t.end()
-})
-
-test('use .bind to pass root implicitly', function (t) {
-  var my = {}
-  var set = setPath.bind(my)
-  set('name', 'Stephen')
-  t.equal(my.name, 'Stephen')
-  t.end()
-})
-
-test('chain .bind and .setter for awesomeness', function (t) {
-  var my = {}
-  var setMyName = setPath.setter('name').bind(my)
-  setMyName('Stephen')
-  t.equal(my.name, 'Stephen')
-  
-  // or do it the other way around
-  setPath.bind(my).setter('name')('Still Stephen')
-  t.equal(my.name, 'Still Stephen')
-  t.end()
-})
-
-test('use .prefix to limit the scope of allowed changes', function (t) {
-  var model = {}
-  var setApples = setPath.prefix('apples').bind(model)
-  var setOranges = setPath.prefix('oranges').bind(model)
-  setApples('count', 1)
-  setOranges('count', 2)
-  t.deepEqual(model, {
-    apples: { count: 1 },
-    oranges: { count: 2 },
-  })
-  t.end()
-})
-
-test('chain .bind, .prefix, .setter', function (t) {
-  var model = {}
-  var setAppleCount = setPath.bind(model).prefix('apples').setter('count')
-  var setOrangeCount = setPath.bind(model).prefix('oranges').setter('count')
-
-  setAppleCount(3)
-  setOrangeCount(4)
-  t.deepEqual(model, {
-    apples: { count: 3 },
-    oranges: { count: 4 },
-  })
-  t.end()
-})
+set(data, 'products.eggs[0].amount', 200)
+data.products.eggs[0].amount
+// => 200
 ```
-
-## Install
-
-    npm install set-object-path
-
-## License
-
-MIT

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decreased by-69.31%

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Lines of code

29

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Number of lines in readme file

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