time-to-botec

Benchmark sampling in different programming languages
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mergeWith.js (1247B)

      1 var baseMerge = require('./_baseMerge'),
      2     createAssigner = require('./_createAssigner');
      3 
      4 /**
      5  * This method is like `_.merge` except that it accepts `customizer` which
      6  * is invoked to produce the merged values of the destination and source
      7  * properties. If `customizer` returns `undefined`, merging is handled by the
      8  * method instead. The `customizer` is invoked with six arguments:
      9  * (objValue, srcValue, key, object, source, stack).
     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  * @example
     22  *
     23  * function customizer(objValue, srcValue) {
     24  *   if (_.isArray(objValue)) {
     25  *     return objValue.concat(srcValue);
     26  *   }
     27  * }
     28  *
     29  * var object = { 'a': [1], 'b': [2] };
     30  * var other = { 'a': [3], 'b': [4] };
     31  *
     32  * _.mergeWith(object, other, customizer);
     33  * // => { 'a': [1, 3], 'b': [2, 4] }
     34  */
     35 var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {
     36   baseMerge(object, source, srcIndex, customizer);
     37 });
     38 
     39 module.exports = mergeWith;