How to find items in an array based on certain criteria in Lodash

Overview

In Lodash, we use the _.filter() method to find items in an array based on specific criteria. This method iterates over all the array elements and returns those elements for which the predicates return a truthy value.

Syntax

Parameters

This method accepts the following parameters:

• collection: This is the collection to be iterated.
• predicate: This is the function that is checked against the values of the array in every iteration.

Return value

This method returns a new array containing the filtered elements.

Example

Let’s look at an example of finding items in an array based on certain criteria using the _.filter() method in the code snippet below:

Explanation

In the HTML tab:

• Line 5: We import the lodash script.

In the JavaScript tab:

• Line 2–7: We create an array of objects.

• Line 10: We use the _.filter() method to find all the people whose designation is Software Engineer.
• Line 13: We print the output to the console.