time-to-botec

Benchmark sampling in different programming languages
Log | Files | Refs | README

update.js (1076B)

      1 var baseUpdate = require('./_baseUpdate'),
      2     castFunction = require('./_castFunction');
      3 
      4 /**
      5  * This method is like `_.set` except that accepts `updater` to produce the
      6  * value to set. Use `_.updateWith` to customize `path` creation. The `updater`
      7  * is invoked with one argument: (value).
      8  *
      9  * **Note:** This method mutates `object`.
     10  *
     11  * @static
     12  * @memberOf _
     13  * @since 4.6.0
     14  * @category Object
     15  * @param {Object} object The object to modify.
     16  * @param {Array|string} path The path of the property to set.
     17  * @param {Function} updater The function to produce the updated value.
     18  * @returns {Object} Returns `object`.
     19  * @example
     20  *
     21  * var object = { 'a': [{ 'b': { 'c': 3 } }] };
     22  *
     23  * _.update(object, 'a[0].b.c', function(n) { return n * n; });
     24  * console.log(object.a[0].b.c);
     25  * // => 9
     26  *
     27  * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });
     28  * console.log(object.x[0].y.z);
     29  * // => 0
     30  */
     31 function update(object, path, updater) {
     32   return object == null ? object : baseUpdate(object, path, castFunction(updater));
     33 }
     34 
     35 module.exports = update;