Looping Through the Array
You can iterate through the array using a loop (e.g., for
loop) and count the elements to determine the array length.
Example: Demonstrate finding the length of the array by looping through the each element of the array.
const Array = [1, 2, 3, 4, 5];
let lengthOfArray = 0;
for (let i = 0; i < Array.length; i++) {
lengthOfArray++;
}
console.log(lengthOfArray);
Output
5
How to Find the Length of an Array in JavaScript ?
JavaScript provides us with several approaches to count the elements within an array. The length of an array lets the developer know whether an element is present in an array or not which helps to manipulate or iterate through each element of the array to perform some operation.
Table of Content
- Using the length Property
- Looping Through the Array
- Using forEach Method
- Using Spread Operator
- Conversion to String
- Using the reduce Method