Lodash's _.sampleSize() method returns an array of a specified number (n) of random, unique elements from a collection (array, object, or string). It ensures no duplicates and handles empty collections by returning an empty 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.
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.
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.