time-to-botec

Benchmark sampling in different programming languages
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assignWith.js (1223B)

      1 var copyObject = require('./_copyObject'),
      2     createAssigner = require('./_createAssigner'),
      3     keys = require('./keys');
      4 
      5 /**
      6  * This method is like `_.assign` except that it accepts `customizer`
      7  * which is invoked to produce the assigned values. If `customizer` returns
      8  * `undefined`, assignment is handled by the method instead. The `customizer`
      9  * is invoked with five arguments: (objValue, srcValue, key, object, source).
     10  *
     11  * **Note:** This method mutates `object`.
     12  *
     13  * @static
     14  * @memberOf _
     15  * @since 4.0.0
     16  * @category Object
     17  * @param {Object} object The destination object.
     18  * @param {...Object} sources The source objects.
     19  * @param {Function} [customizer] The function to customize assigned values.
     20  * @returns {Object} Returns `object`.
     21  * @see _.assignInWith
     22  * @example
     23  *
     24  * function customizer(objValue, srcValue) {
     25  *   return _.isUndefined(objValue) ? srcValue : objValue;
     26  * }
     27  *
     28  * var defaults = _.partialRight(_.assignWith, customizer);
     29  *
     30  * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
     31  * // => { 'a': 1, 'b': 2 }
     32  */
     33 var assignWith = createAssigner(function(object, source, srcIndex, customizer) {
     34   copyObject(source, keys(source), object, customizer);
     35 });
     36 
     37 module.exports = assignWith;