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Diffstat (limited to 'node_modules/object-copy/index.js')
-rw-r--r-- | node_modules/object-copy/index.js | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/node_modules/object-copy/index.js b/node_modules/object-copy/index.js deleted file mode 100644 index f9faa22..0000000 --- a/node_modules/object-copy/index.js +++ /dev/null @@ -1,174 +0,0 @@ -'use strict'; - -var typeOf = require('kind-of'); -var copyDescriptor = require('copy-descriptor'); -var define = require('define-property'); - -/** - * Copy static properties, prototype properties, and descriptors from one object to another. - * - * ```js - * function App() {} - * var proto = App.prototype; - * App.prototype.set = function() {}; - * App.prototype.get = function() {}; - * - * var obj = {}; - * copy(obj, proto); - * ``` - * @param {Object} `receiver` - * @param {Object} `provider` - * @param {String|Array} `omit` One or more properties to omit - * @return {Object} - * @api public - */ - -function copy(receiver, provider, omit) { - if (!isObject(receiver)) { - throw new TypeError('expected receiving object to be an object.'); - } - if (!isObject(provider)) { - throw new TypeError('expected providing object to be an object.'); - } - - var props = nativeKeys(provider); - var keys = Object.keys(provider); - var len = props.length; - omit = arrayify(omit); - - while (len--) { - var key = props[len]; - - if (has(keys, key)) { - define(receiver, key, provider[key]); - } else if (!(key in receiver) && !has(omit, key)) { - copyDescriptor(receiver, provider, key); - } - } -}; - -/** - * Return true if the given value is an object or function - */ - -function isObject(val) { - return typeOf(val) === 'object' || typeof val === 'function'; -} - -/** - * Returns true if an array has any of the given elements, or an - * object has any of the give keys. - * - * ```js - * has(['a', 'b', 'c'], 'c'); - * //=> true - * - * has(['a', 'b', 'c'], ['c', 'z']); - * //=> true - * - * has({a: 'b', c: 'd'}, ['c', 'z']); - * //=> true - * ``` - * @param {Object} `obj` - * @param {String|Array} `val` - * @return {Boolean} - */ - -function has(obj, val) { - val = arrayify(val); - var len = val.length; - - if (isObject(obj)) { - for (var key in obj) { - if (val.indexOf(key) > -1) { - return true; - } - } - - var keys = nativeKeys(obj); - return has(keys, val); - } - - if (Array.isArray(obj)) { - var arr = obj; - while (len--) { - if (arr.indexOf(val[len]) > -1) { - return true; - } - } - return false; - } - - throw new TypeError('expected an array or object.'); -} - -/** - * Cast the given value to an array. - * - * ```js - * arrayify('foo'); - * //=> ['foo'] - * - * arrayify(['foo']); - * //=> ['foo'] - * ``` - * - * @param {String|Array} `val` - * @return {Array} - */ - -function arrayify(val) { - return val ? (Array.isArray(val) ? val : [val]) : []; -} - -/** - * Returns true if a value has a `contructor` - * - * ```js - * hasConstructor({}); - * //=> true - * - * hasConstructor(Object.create(null)); - * //=> false - * ``` - * @param {Object} `value` - * @return {Boolean} - */ - -function hasConstructor(val) { - return isObject(val) && typeof val.constructor !== 'undefined'; -} - -/** - * Get the native `ownPropertyNames` from the constructor of the - * given `object`. An empty array is returned if the object does - * not have a constructor. - * - * ```js - * nativeKeys({a: 'b', b: 'c', c: 'd'}) - * //=> ['a', 'b', 'c'] - * - * nativeKeys(function(){}) - * //=> ['length', 'caller'] - * ``` - * - * @param {Object} `obj` Object that has a `constructor`. - * @return {Array} Array of keys. - */ - -function nativeKeys(val) { - if (!hasConstructor(val)) return []; - return Object.getOwnPropertyNames(val); -} - -/** - * Expose `copy` - */ - -module.exports = copy; - -/** - * Expose `copy.has` for tests - */ - -module.exports.has = has; |