Approach 3 Using a for loop

Using a for loop, iterate through the array elements, comparing each element to the target. If a match is found, return true; otherwise, return false after iterating through all elements.

Example: In this example The searchElement function iterates through an array to find a target element and returns its index if found, otherwise returns -1.

JavaScript

function searchElement(arr, target) {
    for (let i = 0; i < arr.length; i++) {
        if (arr[i] === target) {
            return i; // Return index if found
        }
    }
    return -1; // Return -1 if not found
}

const array = [10, 20, 30, 40, 50, 60];
const targetElement = 30;
const result = searchElement(array, targetElement);
console.log(`The index of ${targetElement} is: ${result}`);

output:

The index of 30 is: 2

JavaScript Program to Search an Element in an Array

A JavaScript program searches an element in an array by iterating through each item and comparing it with the target value. If found, it returns the index; otherwise, it returns -1, indicating absence.

Following are the ways to search for an element in an array:

Table of Content

Using Recursive Approach
Using Array.reduce() method
Using a for loop:
Using Array.indexOf():
Using includes

Tags:

#JavaScript-Program #JavaScript #Web Technologies

Approach 2: Using Array.reduce() method

Approach 4: Using Array.indexOf():

Approach 3 Using a for loop

JavaScript Program to Search an Element in an Array

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