You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
36 lines
1.1 KiB
JavaScript
36 lines
1.1 KiB
JavaScript
6 years ago
|
var baseUpdate = require('./_baseUpdate'),
|
||
|
|
castFunction = require('./_castFunction');
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This method is like `_.set` except that accepts `updater` to produce the
|
||
|
|
* value to set. Use `_.updateWith` to customize `path` creation. The `updater`
|
||
|
|
* is invoked with one argument: (value).
|
||
|
|
*
|
||
|
|
* **Note:** This method mutates `object`.
|
||
|
|
*
|
||
|
|
* @static
|
||
|
|
* @memberOf _
|
||
|
|
* @since 4.6.0
|
||
|
|
* @category Object
|
||
|
|
* @param {Object} object The object to modify.
|
||
|
|
* @param {Array|string} path The path of the property to set.
|
||
|
|
* @param {Function} updater The function to produce the updated value.
|
||
|
|
* @returns {Object} Returns `object`.
|
||
|
|
* @example
|
||
|
|
*
|
||
|
|
* var object = { 'a': [{ 'b': { 'c': 3 } }] };
|
||
|
|
*
|
||
|
|
* _.update(object, 'a[0].b.c', function(n) { return n * n; });
|
||
|
|
* console.log(object.a[0].b.c);
|
||
|
|
* // => 9
|
||
|
|
*
|
||
|
|
* _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });
|
||
|
|
* console.log(object.x[0].y.z);
|
||
|
|
* // => 0
|
||
|
|
*/
|
||
|
|
function update(object, path, updater) {
|
||
|
|
return object == null ? object : baseUpdate(object, path, castFunction(updater));
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = update;
|