Lodash _.after() Method

Lodash _.after() method is opposite of Lodash _.before() method. This method is used to create a function that invokes function once it’s called n or more times.

Syntax:

_.after(n, func);

Parameters:

• n: This parameter holds the number n that defines the number of calls before func is invoked.
• func: This parameter holds the function that will invoked.

Return Value:

This method returns the new restricted function.

Example 1: In this example, we try to invoke the function 3 times but it will invoke 3rd time only.

javascript

// Requiring the lodash library
const _ = require("lodash");

// Applying _.after() method
let gfg = _.after(3, function () {
    console.log('Saved');
});

gfg(); // Print nothing
gfg(); // Print nothing
gfg(); // Print Saved

Output:

Saved

Example 2: In this example, we try to invoke the function 2 times but it will in invoke 2nd times only.

javascript

// Requiring the lodash library
const _ = require("lodash");

// Applying _.after() method
let gfg = _.after(2, function () {
    console.log('Successful');
});

gfg(); // Print nothing
gfg(); // Print Successful

Output:

Successful

Reference: https://docs-lodash.com/v4/after/