Lodash _.difference() Function

The _.difference() function is used to remove a single element or the array of elements from the original array. This function works pretty much same as the core function of JavaScript i.e filter.

Syntax :

_.difference(array, [values]);

Parameters: This function accept two parameters as mentioned above and described below:

array: It is the array from which different elements are to be removed.
values: It is the array of values that are to be removed from the original array.

Note:

We can use single value or the array of values. But if only single Integer is given then it will not effect the original array.
Please install the library before going further using npm install lodash.

Below examples illustrate the _.difference() function in Lodash:

Example 1: When array of values is given.

Javascript

// Requiring the lodash library
let lodash = require("lodash");
 
// Original array
let array = ["a", 2, 3];
 
// Values to be removed from
// the original array
let values = [2, 3]
let newArray = lodash.difference(array, values);
console.log("Before: ", array);
 
// Printing array
console.log("After: ", newArray);

Output:

Example 2: When an empty array is given, there will be no change in the origin a array.

Javascript

// Requiring the lodash library
let lodash = require("lodash");
 
// Original array
let array = ["a", 2, 3];
 
// Values to be removed from
// the original array
let values = []
let newArray = lodash.difference(array, values);
console.log("Before: ", array);
 
// Printing array
console.log("After: ", newArray);