How to use Lodash _.findIndex() Method In Javascript
- In this approach, we are using the lodash that is the library of JavaSCript for fucntions.
- It has inbuilt function _.findIndex() which can be used to find the index of the given value.
- We have to pass the given value of an array and it will return the index number.
Example: This example is the implementation of the above-explained approach.
// Requiring the lodash library
const _ = require('lodash');
// Original array
let array1 = [4, 2, 3, 1, 4, 2]
// Using lodash.findIndex
let index = _.findIndex(array1, (e) => {
return e == 1;
}, 0);
// Print original Array
console.log("original Array: ", array1)
// Printing the index
console.log("index: ", index)
Output:
original Array: [ 4, 2, 3, 1, 4, 2]
index: 3
Find the Array Index with a Value in JavaScript
Finding the index of a specific value in an array in JavaScript involves searching through the array’s elements to locate the position of the desired value. This index serves as a reference point for accessing or manipulating the value within the array.
Example 1:
Input: ['apple', 'banana', 'cherry', 'orange']
N = 'cherry'
Output: 2
Explanation: The index of the word cherry is 2
These are the following approaches by using these we can find the Array Index with a Value:
Table of Content
- Using indexOf() method
- Using findIndex() method
- Using for loop
- Using Lodash _.findIndex() Method
- Using reduce method