How to use filter() Method In Javascript
The filter() method creates the array of all those elements/objects that pass the checking condition.
Syntax:
array.filter( function(currValue, arrIndex, arrObj), this )
Example: This example shows the use of the above-explained approach.
let obj = { "geeks1": 10, "geeks2": 12 }
let arr = ["geeks1", "geeks2", "geeks3", obj];
if (arr.filter(value => value == obj).length > 0)
console.log("true");
else
console.log("false");
Output
true
How to check if an array includes an object in JavaScript ?
In JavaScript, an array acts like like list. It’s a way to group multiple items together under one name. You can store different things in your list, like numbers, words, or even other lists. Each item in the list has its own place, and you can access it using a number called its “index.”
We will check if an array includes an object or not in JavaScript. There are various methods to check whether an array includes an object or not.
These are the following approaches by using these we can check if an array includes an object in JavaScript:
Table of Content
- Using includes() Method
- Using some() Method
- Using filter() Method
- Using findIndex() Method
- Using Lodash _.find() Method
- Using the spread operator (…) and Math.floor():
- Using Array.prototype.find Method