matchesProperty.js (1454B)
1 var baseClone = require('./_baseClone'), 2 baseMatchesProperty = require('./_baseMatchesProperty'); 3 4 /** Used to compose bitmasks for cloning. */ 5 var CLONE_DEEP_FLAG = 1; 6 7 /** 8 * Creates a function that performs a partial deep comparison between the 9 * value at `path` of a given object to `srcValue`, returning `true` if the 10 * object value is equivalent, else `false`. 11 * 12 * **Note:** Partial comparisons will match empty array and empty object 13 * `srcValue` values against any array or object value, respectively. See 14 * `_.isEqual` for a list of supported value comparisons. 15 * 16 * **Note:** Multiple values can be checked by combining several matchers 17 * using `_.overSome` 18 * 19 * @static 20 * @memberOf _ 21 * @since 3.2.0 22 * @category Util 23 * @param {Array|string} path The path of the property to get. 24 * @param {*} srcValue The value to match. 25 * @returns {Function} Returns the new spec function. 26 * @example 27 * 28 * var objects = [ 29 * { 'a': 1, 'b': 2, 'c': 3 }, 30 * { 'a': 4, 'b': 5, 'c': 6 } 31 * ]; 32 * 33 * _.find(objects, _.matchesProperty('a', 4)); 34 * // => { 'a': 4, 'b': 5, 'c': 6 } 35 * 36 * // Checking for several possible values 37 * _.filter(objects, _.overSome([_.matchesProperty('a', 1), _.matchesProperty('a', 4)])); 38 * // => [{ 'a': 1, 'b': 2, 'c': 3 }, { 'a': 4, 'b': 5, 'c': 6 }] 39 */ 40 function matchesProperty(path, srcValue) { 41 return baseMatchesProperty(path, baseClone(srcValue, CLONE_DEEP_FLAG)); 42 } 43 44 module.exports = matchesProperty;