The Lodash _.isMatchWith() Method performs a partial deep comparison between object and source to determine if the object contains equivalent property values. Due to partial comparisons, it will match empty array and empty object source values against any array or object value, respectively. This method accepts another function as “customizer” which is invoked to compare values.
Syntax:
_.isMatchWith( object, source, [customizer] )
Parameters: This method accepts three parameters as mentioned above and described below:
- object: Object in which source is to be matched.
- source: Source which is to be matched.
- customizer: Function used to customize comparisons.
Return Value: This method returns a boolean value. Returns true if the source and the given object matches, else false.
Example 1:
Javascript
// Defining Lodash variable const _ = require('lodash'); var object = { 'Geeks': "GfG", 'Geeks2': "GfG2" }; function fun() { return true; } // Checking console.log(_.isMatch(object, { 'Geeks2': "GfG2" }, fun)); // Checking console.log(_.isMatch(object, { 'Geeks': "GfG2" }, fun)); |
Output:
true false
Example 2: For checking with an empty source this method returns true.
Javascript
// Defining Lodash variable const _ = require('lodash'); var object = { 'Geeks': "GfG", 'Geeks2': "GfG2" }; function fun(){ return true; } // Checking console.log(_.isMatch(object, { }, fun)); |
Output:
true
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