unchanged - npm Package Compare versions

Comparing version 1.5.0 to 1.5.1

CHANGELOG.md

@@ -5,2 +5,11 @@ # unchanged CHANGELOG
 
+## 1.5.1
+
+- Return support for `Symbol` keys when using `assign`, `merge`, `remove`, and `set`
+- Add documentation for `has` method
+- Improve speed of `add` by eliminating unneeded call to curried wrapper
+- Improve speed of `merge` by eliminating unneeded extra cloning
+- Improve speed of `remove` by eliminating unneeded iterations
+- Allow cloning to work consistently even with data from across realms
+
 ## 1.5.0
@@ -7,0 +16,0 @@

dist/unchanged.js

@@ -236,4 +236,8 @@ (function (global, factory) {
   var create$1 = O.create,
+      getOwnPropertySymbols = O.getOwnPropertySymbols,
       getPrototypeOf = O.getPrototypeOf,
-      keys = O.keys;
+      keys = O.keys,
+      propertyIsEnumerable = O.propertyIsEnumerable;
+  var toStringObject = O.prototype.toString;
+  var toStringFunction = Function.prototype.toString;
   /**
@@ -244,3 +248,3 @@ * @constant {Symbol} REACT_ELEMENT
 
-  var REACT_ELEMENT = typeof Symbol === 'function' && Symbol.for ? Symbol.for('react.element') : 0xeac7;
+  var REACT_ELEMENT = typeof Symbol === 'function' && typeof Symbol.for === 'function' ? Symbol.for('react.element') : 0xeac7;
   /**
@@ -287,24 +291,48 @@ * @constant {RegExp} FUNCTION_NAME
   /**
-   * @function assign
+   * @function getOwnProperties
    *
    * @description
-   * a slimmer, faster version of Object.assign
+   * get the own properties of an object, either keys or symbols
    *
+   * @param {Object} object the object to get all keys and symbols of
+   * @returns {Array<string|symbol>} the own properties of the object
+   */
+
+  var getOwnProperties = function getOwnProperties(object) {
+    var ownSymbols = getOwnPropertySymbols(object);
+
+    if (!ownSymbols.length) {
+      return keys(object);
+    }
+
+    return keys(object).concat(reduce(ownSymbols, function (enumerableSymbols, symbol) {
+      if (propertyIsEnumerable.call(object, symbol)) {
+        enumerableSymbols.push(symbol);
+      }
+
+      return enumerableSymbols;
+    }, []));
+  };
+  /**
+   * @function assignFallback
+   *
+   * @description
+   * a simple implementation of Object.assign
+   *
    * @param {Object} target the target object
-   * @param {Array<Object>} sources the objects to merge into target
+   * @param {Object} source the object to merge into target
    * @returns {Object} the shallowly-merged object
    */
 
-  var assign = function assign(target) {
-    for (var _len = arguments.length, sources = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
-      sources[_key - 1] = arguments[_key];
+  var assignFallback = function assignFallback(target, source) {
+    if (!source) {
+      return target;
     }
 
-    return reduce(sources, function (assigned, object) {
-      return object ? reduce(keys(object), function (assignedTarget, key) {
-        assignedTarget[key] = object[key];
-        return assignedTarget;
-      }, assigned) : assigned;
-    }, target);
+    return reduce(getOwnProperties(source), function (clonedObject, property) {
+      clonedObject[property] = source[property];
+      return clonedObject;
+    }, Object(target));
   };
+  var assign = typeof O.assign === 'function' ? O.assign : assignFallback;
   /**
@@ -314,3 +342,7 @@ * @function isCloneable
    * @description
-   * can the object be merged
+   * can the object be cloned
+   * 
+   * - the object exists and is an object
+   * - the object is not a Date or RegExp
+   * - the object is not a React element
    *
@@ -322,3 +354,8 @@ * @param {*} object the object to test
   var isCloneable = function isCloneable(object) {
-    return !!object && typeof object === 'object' && !(object instanceof Date || object instanceof RegExp) && object.$$typeof !== REACT_ELEMENT;
+    if (!object || typeof object !== 'object') {
+      return false;
+    }
+
+    var type = toStringObject.call(object);
+    return type !== '[object Date]' && type !== '[object RegExp]' && object.$$typeof !== REACT_ELEMENT;
   };
@@ -336,3 +373,3 @@ /**
   var isGlobalConstructor = function isGlobalConstructor(fn) {
-    return typeof fn === 'function' && global[fn.name || Function.prototype.toString.call(fn).split(FUNCTION_NAME)[1]] === fn;
+    return typeof fn === 'function' && global[fn.name || toStringFunction.call(fn).split(FUNCTION_NAME)[1]] === fn;
   };
@@ -366,6 +403,11 @@ /**
   var getShallowClone = function getShallowClone(object) {
-    return object.constructor === O ? assign({}, object) : isArray(object) ? cloneArray(object) : isGlobalConstructor(object.constructor) ? {} : reduce(keys(object), function (clone, key) {
-      clone[key] = object[key];
-      return clone;
-    }, create$1(getPrototypeOf(object)));
+    if (object.constructor === O) {
+      return assign({}, object);
+    }
+
+    if (isArray(object)) {
+      return cloneArray(object);
+    }
+
+    return isGlobalConstructor(object.constructor) ? {} : assign(create$1(getPrototypeOf(object)), object);
   };
@@ -430,3 +472,3 @@ /**
    * get the value if it is not undefined, else get the fallback
-   *
+   *`
    * @param {any} value the main value to return
@@ -489,9 +531,16 @@ * @param {any} fallbackValue the value to return if main is undefined
     var isObject1Array = isArray(object1);
-    return isObject1Array !== isArray(object2) || !isCloneable(object1) ? cloneIfPossible(object2) : isObject1Array ? object1.concat(object2.map(cloneIfPossible)) : reduce(keys(object2), function (clone, key) {
+
+    if (isObject1Array !== isArray(object2) || !isCloneable(object1)) {
+      return cloneIfPossible(object2);
+    }
+
+    if (isObject1Array) {
+      return object1.concat(object2);
+    }
+
+    var target = object1.constructor === O || isGlobalConstructor(object1.constructor) ? {} : create$1(getPrototypeOf(object1));
+    return reduce(getOwnProperties(object2), function (clone, key) {
       clone[key] = isDeep && isCloneable(object2[key]) ? getMergedObject(object1[key], object2[key], isDeep) : object2[key];
       return clone;
-    }, reduce(keys(object1), function (clone, key) {
-      clone[key] = cloneIfPossible(object1[key]);
-      return clone;
-    }, object1.constructor === O ? {} : create$1(getPrototypeOf(object1))));
+    }, assign(target, object1));
   };
@@ -526,3 +575,8 @@ /**
     var parsedPath = getParsedPath(path);
-    return parsedPath.length === 1 ? object ? callIfFunction(object[parsedPath[0]], context, parameters) : void 0 : onMatchAtPath(parsedPath, object, function (ref, key) {
+
+    if (parsedPath.length === 1) {
+      return object ? callIfFunction(object[parsedPath[0]], context, parameters) : void 0;
+    }
+
+    return onMatchAtPath(parsedPath, object, function (ref, key) {
       return callIfFunction(ref[key], context, parameters);
@@ -545,3 +599,8 @@ });
     var parsedPath = getParsedPath(path);
-    return parsedPath.length === 1 ? object ? getCoalescedValue(object[parsedPath[0]], noMatchValue) : noMatchValue : onMatchAtPath(parsedPath, object, function (ref, key) {
+
+    if (parsedPath.length === 1) {
+      return object ? getCoalescedValue(object[parsedPath[0]], noMatchValue) : noMatchValue;
+    }
+
+    return onMatchAtPath(parsedPath, object, function (ref, key) {
       return getCoalescedValue(ref[key], noMatchValue);
@@ -619,8 +678,8 @@ }, false, noMatchValue);
 
-      while (index < length) {
+      while (index < length - 1) {
         array[index] = array[index + 1];
-        index++;
+        ++index;
       }
 
-      array.length--;
+      --array.length;
     }
@@ -818,4 +877,5 @@ };
   var add = curry(function (path, value, object) {
-    var nestedValue = get(path, object);
-    var fullPath = isArray(nestedValue) ? isArray(path) ? path.concat([nestedValue.length]) : (isEmptyPath(path) ? '' : path) + "[" + nestedValue.length + "]" : path;
+    var isPathEmpty = isEmptyPath(path);
+    var valueAtPath = isPathEmpty ? object : getNestedProperty(path, object);
+    var fullPath = isArray(valueAtPath) ? isArray(path) ? path.concat([valueAtPath.length]) : (isPathEmpty ? '' : path) + "[" + valueAtPath.length + "]" : path;
     return set(fullPath, value, object);
@@ -822,0 +882,0 @@ });

dist/unchanged.min.js

@@ -1,1 +0,1 @@
-!function(n,t){"object"==typeof exports&&"undefined"!=typeof module?t(exports):"function"==typeof define&&define.amd?define(["exports"],t):t(n.unchanged={})}(this,function(n){"use strict";var o="function"==typeof Symbol?Symbol("curriable placeholder"):60881;function t(t){var r=1<arguments.length&&void 0!==arguments[1]?arguments[1]:t.length;function e(){var n=arguments;return n.length>=r&&!function(n,t){for(var r=0;r<t;r++)if(n[r]===o)return!0;return!1}(n,r)?t.apply(this,n):function(){return e.apply(this,function(n,t){for(var r=new Array(n.length),e=0,u=0;u<n.length;u++)r[u]=n[u]===o&&e<t.length?t[e++]:n[u];if(e<t.length)for(;e<t.length;e++)r.push(t[e]);return r}(n,arguments))}}return e.arity=r,e.fn=t,e}t.__=o,t.uncurry=function(n){return n.fn};var r={clear:function(){r.results={},r.size=0},results:{},size:0},e=/"[^"]+"|`[^`]+`|'[^']+'|[^.[\]]+/g,u=/^\d+$/i,i=/^"[^"]+"|`[^`]+`|'[^']+'$/,f=function(n){var t,r,e=(t=n,i.test(t)?n.substring(1,n.length-1):n);return(r=e).length&&u.test(r)?+e:e},c=function(n){return"string"==typeof n?(t=n,r.results[t]||(500<r.size&&r.clear(),r.results[t]=t?t.match(e).map(f):[t],r.size++),r.results[t]):Array.isArray(n)?n.map(f):["number"==typeof n?n:""+n];var t},a=Object,l=a.create,s=a.getPrototypeOf,g=a.keys,p="function"==typeof Symbol&&Symbol.for?Symbol.for("react.element"):60103,y=/^\s*function\s*([^\(]*)/i,h=Array.isArray,v=function(n,t,r){for(var e=r,u=0;u<n.length;u++)e=t(e,n[u]);return e},d=function(n){return!!n&&"object"==typeof n&&!(n instanceof Date||n instanceof RegExp)&&n.$$typeof!==p},m=function(n,t,r){return"function"==typeof n?n.apply(t,r):void 0},b=function(r){return r.constructor===a?function(n){for(var t=arguments.length,r=new Array(1<t?t-1:0),e=1;e<t;e++)r[e-1]=arguments[e];return v(r,function(n,r){return r?v(g(r),function(n,t){return n[t]=r[t],n},n):n},n)}({},r):h(r)?function(n){for(var t=new n.constructor,r=0;r<n.length;r++)t[r]=n[r];return t}(r):"function"==typeof(n=r.constructor)&&global[n.name||Function.prototype.toString.call(n).split(y)[1]]===n?{}:v(g(r),function(n,t){return n[t]=r[t],n},l(s(r)));var n},A=function(n){return"number"==typeof n?[]:{}},S=function(n){return d(n)?b(n):n},_=function(n,t){return void 0===n?t:n},j=function n(t,r,e,u,o,i){void 0===i&&(i=0);var f,c,a=t[i],l=i+1;if(l!==t.length)return u?(r[a]=n(t,(f=r[a],c=t[l],d(f)?b(f):A(c)),e,u,o,l),r):r&&r[a]?n(t,r[a],e,u,o,l):o;var s=r||u?e(r,a):o;return u?r:s},w=function r(e,u,o){var n=h(e);return n===h(u)&&d(e)?n?e.concat(u.map(S)):v(g(u),function(n,t){return n[t]=o&&d(u[t])?r(e[t],u[t],o):u[t],n},v(g(e),function(n,t){return n[t]=S(e[t]),n},e.constructor===a?{}:l(s(e)))):S(u)},x=function(n){return h(n)?n:c(n)},z=function(n,t,r){var e=x(n);return 1===e.length?t?_(t[e[0]],r):r:j(e,t,function(n,t){return _(n[t],r)},!1,r)},O=function(n,t,r){var e=x(n),u=d(t)?b(t):A(e[0]);return 1===e.length?(r(u,e[0]),u):j(e,u,r,!0)},$=function(n,t){return void 0!==z(n,t)},P=function(n){return null==n||h(n)&&!n.length},k=t(function(n,r,t){return d(t)?P(n)?w(t,r,!1):O(n,t,function(n,t){n[t]=w(n[t],r,!1)}):r}),D=t(function(n,t,r,e){return void 0===e&&(e=r),P(n)?m(r,e,t):(u=e,o=t,i=r,1===(f=x(n)).length?i?m(i[f[0]],u,o):void 0:j(f,i,function(n,t){return m(n[t],u,o)}));var u,o,i,f},3),E=t(function(n,t){return P(n)?t:z(n,t)}),F=t(function(n,t,r){return P(t)?r:z(t,r,n)}),M=t(function(n,t){return P(n)?null!=t:$(n,t)}),R=t(function(n,r,t){return d(t)?P(n)?w(t,r,!0):O(n,t,function(n,t){n[t]=w(n[t],r,!0)}):r}),q=t(function(n,t){return P(n)?h(t)?[]:{}:$(n,t)?O(n,t,function(n,t){h(n)?function(n,t){if(n.length){for(var r=n.length,e=t;e<r;)n[e]=n[e+1],e++;n.length--}}(n,t):delete n[t]}):t}),B=t(function(n,r,t){return P(n)?r:O(n,t,function(n,t){n[t]=r})}),C=t(function(n,r,t){for(var e=arguments.length,u=new Array(3<e?e-3:0),o=3;o<e;o++)u[o-3]=arguments[o];return P(n)?r.apply(void 0,[t].concat(u)):O(n,t,function(n,t){return n[t]=r.apply(void 0,[n[t]].concat(u))})},3),G=t(function(n,t,r){var e=E(n,r),u=h(e)?h(n)?n.concat([e.length]):(P(n)?"":n)+"["+e.length+"]":n;return B(u,t,r)});n.__=o,n.assign=k,n.call=D,n.get=E,n.getOr=F,n.has=M,n.merge=R,n.remove=q,n.set=B,n.transform=C,n.add=G,Object.defineProperty(n,"__esModule",{value:!0})});
+!function(n,t){"object"==typeof exports&&"undefined"!=typeof module?t(exports):"function"==typeof define&&define.amd?define(["exports"],t):t(n.unchanged={})}(this,function(n){"use strict";var u="function"==typeof Symbol?Symbol("curriable placeholder"):60881;function t(t){var r=1<arguments.length&&void 0!==arguments[1]?arguments[1]:t.length;function e(){var n=arguments;return n.length>=r&&!function(n,t){for(var r=0;r<t;r++)if(n[r]===u)return!0;return!1}(n,r)?t.apply(this,n):function(){return e.apply(this,function(n,t){for(var r=new Array(n.length),e=0,o=0;o<n.length;o++)r[o]=n[o]===u&&e<t.length?t[e++]:n[o];if(e<t.length)for(;e<t.length;e++)r.push(t[e]);return r}(n,arguments))}}return e.arity=r,e.fn=t,e}t.__=u,t.uncurry=function(n){return n.fn};var r={clear:function(){r.results={},r.size=0},results:{},size:0},e=/"[^"]+"|`[^`]+`|'[^']+'|[^.[\]]+/g,o=/^\d+$/i,i=/^"[^"]+"|`[^`]+`|'[^']+'$/,c=function(n){var t,r,e=(t=n,i.test(t)?n.substring(1,n.length-1):n);return(r=e).length&&o.test(r)?+e:e},f=function(n){return"string"==typeof n?(t=n,r.results[t]||(500<r.size&&r.clear(),r.results[t]=t?t.match(e).map(c):[t],r.size++),r.results[t]):Array.isArray(n)?n.map(c):["number"==typeof n?n:""+n];var t},l=Object,a=l.create,s=l.getOwnPropertySymbols,p=l.getPrototypeOf,g=l.keys,y=l.propertyIsEnumerable,h=l.prototype.toString,v=Function.prototype.toString,d="function"==typeof Symbol&&"function"==typeof Symbol.for?Symbol.for("react.element"):60103,b=/^\s*function\s*([^\(]*)/i,m=Array.isArray,S=function(n,t,r){for(var e=r,o=0;o<n.length;o++)e=t(e,n[o]);return e},j=function(r){var n=s(r);return n.length?g(r).concat(S(n,function(n,t){return y.call(r,t)&&n.push(t),n},[])):g(r)},A="function"==typeof l.assign?l.assign:function(n,r){return r?S(j(r),function(n,t){return n[t]=r[t],n},Object(n)):n},O=function(n){if(!n||"object"!=typeof n)return!1;var t=h.call(n);return"[object Date]"!==t&&"[object RegExp]"!==t&&n.$$typeof!==d},_=function(n){return"function"==typeof n&&global[n.name||v.call(n).split(b)[1]]===n},w=function(n,t,r){return"function"==typeof n?n.apply(t,r):void 0},x=function(n){return n.constructor===l?A({},n):m(n)?function(n){for(var t=new n.constructor,r=0;r<n.length;r++)t[r]=n[r];return t}(n):_(n.constructor)?{}:A(a(p(n)),n)},z=function(n){return"number"==typeof n?[]:{}},$=function(n,t){return void 0===n?t:n},P=function n(t,r,e,o,u,i){void 0===i&&(i=0);var c,f,l=t[i],a=i+1;if(a!==t.length)return o?(r[l]=n(t,(c=r[l],f=t[a],O(c)?x(c):z(f)),e,o,u,a),r):r&&r[l]?n(t,r[l],e,o,u,a):u;var s=r||o?e(r,l):u;return o?r:s},E=function r(e,o,u){var n,t=m(e);if(t!==m(o)||!O(e))return O(n=o)?x(n):n;if(t)return e.concat(o);var i=e.constructor===l||_(e.constructor)?{}:a(p(e));return S(j(o),function(n,t){return n[t]=u&&O(o[t])?r(e[t],o[t],u):o[t],n},A(i,e))},k=function(n){return m(n)?n:f(n)},D=function(n,t,r){var e=k(n);return 1===e.length?t?$(t[e[0]],r):r:P(e,t,function(n,t){return $(n[t],r)},!1,r)},F=function(n,t,r){var e=k(n),o=O(t)?x(t):z(e[0]);return 1===e.length?(r(o,e[0]),o):P(e,o,r,!0)},I=function(n,t){return void 0!==D(n,t)},M=function(n){return null==n||m(n)&&!n.length},R=t(function(n,r,t){return O(t)?M(n)?E(t,r,!1):F(n,t,function(n,t){n[t]=E(n[t],r,!1)}):r}),q=t(function(n,t,r,e){return void 0===e&&(e=r),M(n)?w(r,e,t):(o=e,u=t,i=r,1===(c=k(n)).length?i?w(i[c[0]],o,u):void 0:P(c,i,function(n,t){return w(n[t],o,u)}));var o,u,i,c},3),B=t(function(n,t){return M(n)?t:D(n,t)}),C=t(function(n,t,r){return M(t)?r:D(t,r,n)}),G=t(function(n,t){return M(n)?null!=t:I(n,t)}),H=t(function(n,r,t){return O(t)?M(n)?E(t,r,!0):F(n,t,function(n,t){n[t]=E(n[t],r,!0)}):r}),J=t(function(n,t){return M(n)?m(t)?[]:{}:I(n,t)?F(n,t,function(n,t){m(n)?function(n,t){if(n.length){for(var r=n.length,e=t;e<r-1;)n[e]=n[e+1],++e;--n.length}}(n,t):delete n[t]}):t}),K=t(function(n,r,t){return M(n)?r:F(n,t,function(n,t){n[t]=r})}),L=t(function(n,r,t){for(var e=arguments.length,o=new Array(3<e?e-3:0),u=3;u<e;u++)o[u-3]=arguments[u];return M(n)?r.apply(void 0,[t].concat(o)):F(n,t,function(n,t){return n[t]=r.apply(void 0,[n[t]].concat(o))})},3),N=t(function(n,t,r){var e=M(n),o=e?r:D(n,r),u=m(o)?m(n)?n.concat([o.length]):(e?"":n)+"["+o.length+"]":n;return K(u,t,r)});n.__=u,n.assign=R,n.call=q,n.get=B,n.getOr=C,n.has=G,n.merge=H,n.remove=J,n.set=K,n.transform=L,n.add=N,Object.defineProperty(n,"__esModule",{value:!0})});

es/index.js

@@ -194,5 +194,6 @@ // external dependencies
 export var add = curry(function (path, value, object) {
-  var nestedValue = get(path, object);
-  var fullPath = isArray(nestedValue) ? isArray(path) ? path.concat([nestedValue.length]) : (isEmptyPath(path) ? '' : path) + "[" + nestedValue.length + "]" : path;
+  var isPathEmpty = isEmptyPath(path);
+  var valueAtPath = isPathEmpty ? object : getNestedProperty(path, object);
+  var fullPath = isArray(valueAtPath) ? isArray(path) ? path.concat([valueAtPath.length]) : (isPathEmpty ? '' : path) + "[" + valueAtPath.length + "]" : path;
   return set(fullPath, value, object);
 });

es/utils.js

@@ -5,4 +5,8 @@ // external dependencies
 var create = O.create,
+    getOwnPropertySymbols = O.getOwnPropertySymbols,
     getPrototypeOf = O.getPrototypeOf,
-    keys = O.keys;
+    keys = O.keys,
+    propertyIsEnumerable = O.propertyIsEnumerable;
+var toStringObject = O.prototype.toString;
+var toStringFunction = Function.prototype.toString;
 /**
@@ -13,3 +17,3 @@ * @constant {Symbol} REACT_ELEMENT
 
-var REACT_ELEMENT = typeof Symbol === 'function' && Symbol.for ? Symbol.for('react.element') : 0xeac7;
+var REACT_ELEMENT = typeof Symbol === 'function' && typeof Symbol.for === 'function' ? Symbol.for('react.element') : 0xeac7;
 /**
@@ -67,24 +71,48 @@ * @constant {RegExp} FUNCTION_NAME
 /**
- * @function assign
+ * @function getOwnProperties
  *
  * @description
- * a slimmer, faster version of Object.assign
+ * get the own properties of an object, either keys or symbols
  *
+ * @param {Object} object the object to get all keys and symbols of
+ * @returns {Array<string|symbol>} the own properties of the object
+ */
+
+export var getOwnProperties = function getOwnProperties(object) {
+  var ownSymbols = getOwnPropertySymbols(object);
+
+  if (!ownSymbols.length) {
+    return keys(object);
+  }
+
+  return keys(object).concat(reduce(ownSymbols, function (enumerableSymbols, symbol) {
+    if (propertyIsEnumerable.call(object, symbol)) {
+      enumerableSymbols.push(symbol);
+    }
+
+    return enumerableSymbols;
+  }, []));
+};
+/**
+ * @function assignFallback
+ *
+ * @description
+ * a simple implementation of Object.assign
+ *
  * @param {Object} target the target object
- * @param {Array<Object>} sources the objects to merge into target
+ * @param {Object} source the object to merge into target
  * @returns {Object} the shallowly-merged object
  */
 
-export var assign = function assign(target) {
-  for (var _len = arguments.length, sources = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
-    sources[_key - 1] = arguments[_key];
+export var assignFallback = function assignFallback(target, source) {
+  if (!source) {
+    return target;
   }
 
-  return reduce(sources, function (assigned, object) {
-    return object ? reduce(keys(object), function (assignedTarget, key) {
-      assignedTarget[key] = object[key];
-      return assignedTarget;
-    }, assigned) : assigned;
-  }, target);
+  return reduce(getOwnProperties(source), function (clonedObject, property) {
+    clonedObject[property] = source[property];
+    return clonedObject;
+  }, Object(target));
 };
+var assign = typeof O.assign === 'function' ? O.assign : assignFallback;
 /**
@@ -94,3 +122,7 @@ * @function isCloneable
  * @description
- * can the object be merged
+ * can the object be cloned
+ * 
+ * - the object exists and is an object
+ * - the object is not a Date or RegExp
+ * - the object is not a React element
  *
@@ -102,3 +134,8 @@ * @param {*} object the object to test
 export var isCloneable = function isCloneable(object) {
-  return !!object && typeof object === 'object' && !(object instanceof Date || object instanceof RegExp) && object.$$typeof !== REACT_ELEMENT;
+  if (!object || typeof object !== 'object') {
+    return false;
+  }
+
+  var type = toStringObject.call(object);
+  return type !== '[object Date]' && type !== '[object RegExp]' && object.$$typeof !== REACT_ELEMENT;
 };
@@ -116,3 +153,3 @@ /**
 export var isGlobalConstructor = function isGlobalConstructor(fn) {
-  return typeof fn === 'function' && global[fn.name || Function.prototype.toString.call(fn).split(FUNCTION_NAME)[1]] === fn;
+  return typeof fn === 'function' && global[fn.name || toStringFunction.call(fn).split(FUNCTION_NAME)[1]] === fn;
 };
@@ -146,6 +183,11 @@ /**
 export var getShallowClone = function getShallowClone(object) {
-  return object.constructor === O ? assign({}, object) : isArray(object) ? cloneArray(object) : isGlobalConstructor(object.constructor) ? {} : reduce(keys(object), function (clone, key) {
-    clone[key] = object[key];
-    return clone;
-  }, create(getPrototypeOf(object)));
+  if (object.constructor === O) {
+    return assign({}, object);
+  }
+
+  if (isArray(object)) {
+    return cloneArray(object);
+  }
+
+  return isGlobalConstructor(object.constructor) ? {} : assign(create(getPrototypeOf(object)), object);
 };
@@ -210,3 +252,3 @@ /**
  * get the value if it is not undefined, else get the fallback
- *
+ *`
  * @param {any} value the main value to return
@@ -269,9 +311,16 @@ * @param {any} fallbackValue the value to return if main is undefined
   var isObject1Array = isArray(object1);
-  return isObject1Array !== isArray(object2) || !isCloneable(object1) ? cloneIfPossible(object2) : isObject1Array ? object1.concat(object2.map(cloneIfPossible)) : reduce(keys(object2), function (clone, key) {
+
+  if (isObject1Array !== isArray(object2) || !isCloneable(object1)) {
+    return cloneIfPossible(object2);
+  }
+
+  if (isObject1Array) {
+    return object1.concat(object2);
+  }
+
+  var target = object1.constructor === O || isGlobalConstructor(object1.constructor) ? {} : create(getPrototypeOf(object1));
+  return reduce(getOwnProperties(object2), function (clone, key) {
     clone[key] = isDeep && isCloneable(object2[key]) ? getMergedObject(object1[key], object2[key], isDeep) : object2[key];
     return clone;
-  }, reduce(keys(object1), function (clone, key) {
-    clone[key] = cloneIfPossible(object1[key]);
-    return clone;
-  }, object1.constructor === O ? {} : create(getPrototypeOf(object1))));
+  }, assign(target, object1));
 };
@@ -306,3 +355,8 @@ /**
   var parsedPath = getParsedPath(path);
-  return parsedPath.length === 1 ? object ? callIfFunction(object[parsedPath[0]], context, parameters) : void 0 : onMatchAtPath(parsedPath, object, function (ref, key) {
+
+  if (parsedPath.length === 1) {
+    return object ? callIfFunction(object[parsedPath[0]], context, parameters) : void 0;
+  }
+
+  return onMatchAtPath(parsedPath, object, function (ref, key) {
     return callIfFunction(ref[key], context, parameters);
@@ -325,3 +379,8 @@ });
   var parsedPath = getParsedPath(path);
-  return parsedPath.length === 1 ? object ? getCoalescedValue(object[parsedPath[0]], noMatchValue) : noMatchValue : onMatchAtPath(parsedPath, object, function (ref, key) {
+
+  if (parsedPath.length === 1) {
+    return object ? getCoalescedValue(object[parsedPath[0]], noMatchValue) : noMatchValue;
+  }
+
+  return onMatchAtPath(parsedPath, object, function (ref, key) {
     return getCoalescedValue(ref[key], noMatchValue);
@@ -399,9 +458,9 @@ }, false, noMatchValue);
 
-    while (index < length) {
+    while (index < length - 1) {
       array[index] = array[index + 1];
-      index++;
+      ++index;
     }
 
-    array.length--;
+    --array.length;
   }
 };

lib/index.js

@@ -211,6 +211,7 @@ "use strict";
 var add = (0, _curriable.curry)(function (path, value, object) {
-  var nestedValue = get(path, object);
-  var fullPath = (0, _utils.isArray)(nestedValue) ? (0, _utils.isArray)(path) ? path.concat([nestedValue.length]) : ((0, _utils.isEmptyPath)(path) ? '' : path) + "[" + nestedValue.length + "]" : path;
+  var isPathEmpty = (0, _utils.isEmptyPath)(path);
+  var valueAtPath = isPathEmpty ? object : (0, _utils.getNestedProperty)(path, object);
+  var fullPath = (0, _utils.isArray)(valueAtPath) ? (0, _utils.isArray)(path) ? path.concat([valueAtPath.length]) : (isPathEmpty ? '' : path) + "[" + valueAtPath.length + "]" : path;
   return set(fullPath, value, object);
 });
 exports.add = add;

lib/utils.js

 "use strict";
 
 exports.__esModule = true;
-exports.splice = exports.isEmptyPath = exports.hasNestedProperty = exports.getDeepClone = exports.getNestedProperty = exports.callNestedProperty = exports.getParsedPath = exports.getMergedObject = exports.onMatchAtPath = exports.getCoalescedValue = exports.getNewChildClone = exports.cloneIfPossible = exports.getNewEmptyObject = exports.getNewEmptyChild = exports.getShallowClone = exports.callIfFunction = exports.isGlobalConstructor = exports.isCloneable = exports.assign = exports.reduce = exports.cloneArray = exports.isArray = void 0;
+exports.splice = exports.isEmptyPath = exports.hasNestedProperty = exports.getDeepClone = exports.getNestedProperty = exports.callNestedProperty = exports.getParsedPath = exports.getMergedObject = exports.onMatchAtPath = exports.getCoalescedValue = exports.getNewChildClone = exports.cloneIfPossible = exports.getNewEmptyObject = exports.getNewEmptyChild = exports.getShallowClone = exports.callIfFunction = exports.isGlobalConstructor = exports.isCloneable = exports.assignFallback = exports.getOwnProperties = exports.reduce = exports.cloneArray = exports.isArray = void 0;
 
@@ -11,4 +11,8 @@ var _pathington = require("pathington");
 var create = O.create,
+    getOwnPropertySymbols = O.getOwnPropertySymbols,
     getPrototypeOf = O.getPrototypeOf,
-    keys = O.keys;
+    keys = O.keys,
+    propertyIsEnumerable = O.propertyIsEnumerable;
+var toStringObject = O.prototype.toString;
+var toStringFunction = Function.prototype.toString;
 /**
@@ -19,3 +23,3 @@ * @constant {Symbol} REACT_ELEMENT
 
-var REACT_ELEMENT = typeof Symbol === 'function' && Symbol.for ? Symbol.for('react.element') : 0xeac7;
+var REACT_ELEMENT = typeof Symbol === 'function' && typeof Symbol.for === 'function' ? Symbol.for('react.element') : 0xeac7;
 /**
@@ -77,9 +81,37 @@ * @constant {RegExp} FUNCTION_NAME
 /**
- * @function assign
+ * @function getOwnProperties
  *
  * @description
- * a slimmer, faster version of Object.assign
+ * get the own properties of an object, either keys or symbols
  *
+ * @param {Object} object the object to get all keys and symbols of
+ * @returns {Array<string|symbol>} the own properties of the object
+ */
+
+
+exports.reduce = reduce;
+
+var getOwnProperties = function getOwnProperties(object) {
+  var ownSymbols = getOwnPropertySymbols(object);
+
+  if (!ownSymbols.length) {
+    return keys(object);
+  }
+
+  return keys(object).concat(reduce(ownSymbols, function (enumerableSymbols, symbol) {
+    if (propertyIsEnumerable.call(object, symbol)) {
+      enumerableSymbols.push(symbol);
+    }
+
+    return enumerableSymbols;
+  }, []));
+};
+/**
+ * @function assignFallback
+ *
+ * @description
+ * a simple implementation of Object.assign
+ *
  * @param {Object} target the target object
- * @param {Array<Object>} sources the objects to merge into target
+ * @param {Object} source the object to merge into target
  * @returns {Object} the shallowly-merged object
@@ -89,16 +121,17 @@ */
 
-exports.reduce = reduce;
+exports.getOwnProperties = getOwnProperties;
 
-var assign = function assign(target) {
-  for (var _len = arguments.length, sources = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
-    sources[_key - 1] = arguments[_key];
+var assignFallback = function assignFallback(target, source) {
+  if (!source) {
+    return target;
   }
 
-  return reduce(sources, function (assigned, object) {
-    return object ? reduce(keys(object), function (assignedTarget, key) {
-      assignedTarget[key] = object[key];
-      return assignedTarget;
-    }, assigned) : assigned;
-  }, target);
+  return reduce(getOwnProperties(source), function (clonedObject, property) {
+    clonedObject[property] = source[property];
+    return clonedObject;
+  }, Object(target));
 };
+
+exports.assignFallback = assignFallback;
+var assign = typeof O.assign === 'function' ? O.assign : assignFallback;
 /**
@@ -108,3 +141,7 @@ * @function isCloneable
  * @description
- * can the object be merged
+ * can the object be cloned
+ * 
+ * - the object exists and is an object
+ * - the object is not a Date or RegExp
+ * - the object is not a React element
  *
@@ -115,7 +152,9 @@ * @param {*} object the object to test
 
+var isCloneable = function isCloneable(object) {
+  if (!object || typeof object !== 'object') {
+    return false;
+  }
 
-exports.assign = assign;
-
-var isCloneable = function isCloneable(object) {
-  return !!object && typeof object === 'object' && !(object instanceof Date || object instanceof RegExp) && object.$$typeof !== REACT_ELEMENT;
+  var type = toStringObject.call(object);
+  return type !== '[object Date]' && type !== '[object RegExp]' && object.$$typeof !== REACT_ELEMENT;
 };
@@ -136,3 +175,3 @@ /**
 var isGlobalConstructor = function isGlobalConstructor(fn) {
-  return typeof fn === 'function' && global[fn.name || Function.prototype.toString.call(fn).split(FUNCTION_NAME)[1]] === fn;
+  return typeof fn === 'function' && global[fn.name || toStringFunction.call(fn).split(FUNCTION_NAME)[1]] === fn;
 };
@@ -172,6 +211,11 @@ /**
 var getShallowClone = function getShallowClone(object) {
-  return object.constructor === O ? assign({}, object) : isArray(object) ? cloneArray(object) : isGlobalConstructor(object.constructor) ? {} : reduce(keys(object), function (clone, key) {
-    clone[key] = object[key];
-    return clone;
-  }, create(getPrototypeOf(object)));
+  if (object.constructor === O) {
+    return assign({}, object);
+  }
+
+  if (isArray(object)) {
+    return cloneArray(object);
+  }
+
+  return isGlobalConstructor(object.constructor) ? {} : assign(create(getPrototypeOf(object)), object);
 };
@@ -248,3 +292,3 @@ /**
  * get the value if it is not undefined, else get the fallback
- *
+ *`
  * @param {any} value the main value to return
@@ -316,9 +360,16 @@ * @param {any} fallbackValue the value to return if main is undefined
   var isObject1Array = isArray(object1);
-  return isObject1Array !== isArray(object2) || !isCloneable(object1) ? cloneIfPossible(object2) : isObject1Array ? object1.concat(object2.map(cloneIfPossible)) : reduce(keys(object2), function (clone, key) {
+
+  if (isObject1Array !== isArray(object2) || !isCloneable(object1)) {
+    return cloneIfPossible(object2);
+  }
+
+  if (isObject1Array) {
+    return object1.concat(object2);
+  }
+
+  var target = object1.constructor === O || isGlobalConstructor(object1.constructor) ? {} : create(getPrototypeOf(object1));
+  return reduce(getOwnProperties(object2), function (clone, key) {
     clone[key] = isDeep && isCloneable(object2[key]) ? getMergedObject(object1[key], object2[key], isDeep) : object2[key];
     return clone;
-  }, reduce(keys(object1), function (clone, key) {
-    clone[key] = cloneIfPossible(object1[key]);
-    return clone;
-  }, object1.constructor === O ? {} : create(getPrototypeOf(object1))));
+  }, assign(target, object1));
 };
@@ -359,3 +410,8 @@ /**
   var parsedPath = getParsedPath(path);
-  return parsedPath.length === 1 ? object ? callIfFunction(object[parsedPath[0]], context, parameters) : void 0 : onMatchAtPath(parsedPath, object, function (ref, key) {
+
+  if (parsedPath.length === 1) {
+    return object ? callIfFunction(object[parsedPath[0]], context, parameters) : void 0;
+  }
+
+  return onMatchAtPath(parsedPath, object, function (ref, key) {
     return callIfFunction(ref[key], context, parameters);
@@ -381,3 +437,8 @@ });
   var parsedPath = getParsedPath(path);
-  return parsedPath.length === 1 ? object ? getCoalescedValue(object[parsedPath[0]], noMatchValue) : noMatchValue : onMatchAtPath(parsedPath, object, function (ref, key) {
+
+  if (parsedPath.length === 1) {
+    return object ? getCoalescedValue(object[parsedPath[0]], noMatchValue) : noMatchValue;
+  }
+
+  return onMatchAtPath(parsedPath, object, function (ref, key) {
     return getCoalescedValue(ref[key], noMatchValue);
@@ -467,8 +528,8 @@ }, false, noMatchValue);
 
-    while (index < length) {
+    while (index < length - 1) {
       array[index] = array[index + 1];
-      index++;
+      ++index;
     }
 
-    array.length--;
+    --array.length;
   }
@@ -475,0 +536,0 @@ };

package.json

@@ -98,3 +98,3 @@ {
   "sideEffects": false,
-  "version": "1.5.0"
+  "version": "1.5.1"
 }

README.md

 # unchanged
 
-A tiny (~1.8kB minified+gzipped), [fast](https://github.com/planttheidea/unchanged/blob/master/benchmark_results.csv), unopinionated handler for updating JS objects and arrays immutably.
+A tiny (~1.9kB minified+gzipped), [fast](https://github.com/planttheidea/unchanged/blob/master/benchmark_results.csv), unopinionated handler for updating JS objects and arrays immutably.
 
@@ -15,2 +15,3 @@ Supports nested key paths via path arrays or [dot-bracket syntax](https://github.com/planttheidea/pathington), and all methods are curriable (with placeholder support) for composability. Can be a drop-in replacement for the `lodash/fp` methods `get`, `set`, `merge`, and `omit` with a 90% smaller footprint.
   - [remove](#remove)
+  - [has](#has)
   - [add](#add)
@@ -151,2 +152,22 @@ - [merge](#merge)
 
+#### has
+
+`has(path: (Array<number|string>|number|string), object: (Array<any>|object)): boolean`
+
+Returns `true` if the object has the path provided, `false` otherwise.
+
+```javascript
+const object = {
+  foo: [
+    {
+      bar: "baz"
+    }
+  ]
+};
+
+console.log(has("foo[0].bar", object)); // true
+console.log(has(["foo", 0, "bar"], object)); // true
+console.log(has("bar", object)); // false
+```
+
 #### add
@@ -153,0 +174,0 @@

New alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Fixed alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

140526

increased by4.56%

Lines of code

1992

increased by7.62%

Number of lines in readme file

532

increased by4.11%

No dependency changes