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How to get a random element from an array using Lodash

Shubham Singh Kshatriya

Overview

In Lodash, we can get a random element from an array using the following methods:

  • _.sample() method
  • _.sampleSize() method

The _.sample() method

Syntax

_.sample(array);
Syntax of _.clone()

Parameters

This method accepts the following parameters:

  • array: This is the array from which a random element is retrieved.

Return value

This method returns a random element from the array.

Example

Let’s look at an example of getting a random element from an array using the _.sample() method in the code snippet below.

Console

Explanation

In the HTML tab, we see the following:

  • Line 5: We import the lodash script.

In the JavaScript tab, we see the following:

  • Line 2: We create an array and initialize it.
  • Line 5: We get a random element from the array using the _.sample() method.
  • Line 8: We print the random element on the console.

The _.sampleSize() method

Syntax

_.sampleSize(array, n);
Syntax of _.sampleSize()

Parameters

This method accepts the following parameters:

  • array: This is the array from which n random elements are retrieved.
  • n : This is the number of random elements to be retrieved.

Return value

This method returns an array containing n random elements from the array.

Example

Let’s look at an example of getting n random elements from an array using the _.sampleSize() method in the code snippet below.

Console

Explanation

In the HTML tab, we see the following:

  • Line 5: We import the lodash script.

In the JavaScript tab, we see the following:

  • Line 2: We create an array and initialize it.
  • Line 5: We create a variable n and initialize it.
  • Line 8: We get n random elements from the array using the _.sampleSize() method.
  • Line 11: We print the random element on the console.

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Shubham Singh Kshatriya
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