Lodash | _.sampleSize() Method

Lodash _.sampleSize() method is used to give an array of n random elements from the given array.

Syntax:

_.sampleSize(array, n);

Parameters:

• array: This parameter holds the sample collection.
• n: This parameter holds the number of elements to sample.

Return Value:

This method returns an array of n random elements.

Example 1: In this example, we are printing the random elements of the given array in the console by the use of the lodash _.sampleSize() method.

javascript

const _ = require('lodash');

let x = [1, 2, 7, 10, 13, 15];
let result = _.sampleSize(x, 2);

console.log(result);

Output:

[10, 13]

Example 2: In this example, we are printing the random elements of the given array in the console by the use of the lodash _.sampleSize() method.

javascript

const _ = require('lodash');

let x = ['mango', 'apple', 'banana',
    'orange', 'grapes'];
let result = _.sampleSize(x, 3);

console.log(result);

Output:

[ 'grapes', 'orange', 'banana' ]

Note: This will not work in normal JavaScript because it requires the library lodash to be installed.

Reference: https://lodash.com/docs/4.17.15#sampleSize