47 lines
1.4 KiB
JavaScript
47 lines
1.4 KiB
JavaScript
var baseClone = require('./_baseClone'),
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baseMatches = require('./_baseMatches');
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/** Used to compose bitmasks for cloning. */
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var CLONE_DEEP_FLAG = 1;
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/**
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* Creates a function that performs a partial deep comparison between a given
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* object and `source`, returning `true` if the given object has equivalent
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* property values, else `false`.
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*
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* **Note:** The created function is equivalent to `_.isMatch` with `source`
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* partially applied.
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*
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* Partial comparisons will match empty array and empty object `source`
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* values against any array or object value, respectively. See `_.isEqual`
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* for a list of supported value comparisons.
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*
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* **Note:** Multiple values can be checked by combining several matchers
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* using `_.overSome`
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*
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* @static
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* @memberOf _
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* @since 3.0.0
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* @category Util
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* @param {Object} source The object of property values to match.
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* @returns {Function} Returns the new spec function.
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* @example
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*
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* var objects = [
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* { 'a': 1, 'b': 2, 'c': 3 },
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* { 'a': 4, 'b': 5, 'c': 6 }
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* ];
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*
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* _.filter(objects, _.matches({ 'a': 4, 'c': 6 }));
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* // => [{ 'a': 4, 'b': 5, 'c': 6 }]
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*
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* // Checking for several possible values
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* _.filter(objects, _.overSome([_.matches({ 'a': 1 }), _.matches({ 'a': 4 })]));
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* // => [{ 'a': 1, 'b': 2, 'c': 3 }, { 'a': 4, 'b': 5, 'c': 6 }]
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*/
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function matches(source) {
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return baseMatches(baseClone(source, CLONE_DEEP_FLAG));
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}
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module.exports = matches;
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