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35 lines
1.1 KiB
35 lines
1.1 KiB
var baseUpdate = require('./_baseUpdate'), |
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castFunction = require('./_castFunction'); |
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/** |
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* This method is like `_.set` except that accepts `updater` to produce the |
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* value to set. Use `_.updateWith` to customize `path` creation. The `updater` |
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* is invoked with one argument: (value). |
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* |
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* **Note:** This method mutates `object`. |
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* |
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* @static |
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* @memberOf _ |
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* @since 4.6.0 |
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* @category Object |
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* @param {Object} object The object to modify. |
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* @param {Array|string} path The path of the property to set. |
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* @param {Function} updater The function to produce the updated value. |
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* @returns {Object} Returns `object`. |
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* @example |
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* |
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* var object = { 'a': [{ 'b': { 'c': 3 } }] }; |
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* |
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* _.update(object, 'a[0].b.c', function(n) { return n * n; }); |
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* console.log(object.a[0].b.c); |
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* // => 9 |
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* |
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* _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; }); |
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* console.log(object.x[0].y.z); |
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* // => 0 |
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*/ |
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function update(object, path, updater) { |
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return object == null ? object : baseUpdate(object, path, castFunction(updater)); |
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} |
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module.exports = update;
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