FM / object-copy

/var/www/cobraambalaj/node_modules/object-copy/

/var/www/cobraambalaj/node_modules/object-copy

Name	Size	Mode	Actions
node_modules/	-	0755	rm
index.js	3417	0644	edit dl rm
LICENSE	1083	0644	edit dl rm
package.json	1843	0644	edit dl rm

Edit: /var/www/cobraambalaj/node_modules/object-copy/index.js (3417B)

'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;

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