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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; | |