How to use for loop In Javascript
In this approach, we will use the for() loop to reverse an array. First, we will create an array and then use the for loop to print the array elements in reverse order.
Example: This example describes the above-explained approach.
let original_array = [1, 2, 3, 4];
let reversed_array = [];
console.log("Original Array: ");
console.log(original_array);
for (let i = original_array.length - 1;
i >= 0; i--) {
reversed_array.push(original_array[i]);
}
console.log("Reversed Array: ");
console.log(reversed_array);
Output
Original Array: [ 1, 2, 3, 4 ] Reversed Array: [ 4, 3, 2, 1 ]
Reverse an array in JavaScript
Reversing an array is a common task in JavaScript, useful in various scenarios such as data manipulation, algorithm development, and UI rendering. This guide covers multiple methods to reverse an array effectively.
Why Reverse an Array?
Reversing an array can be essential for data processing, enhancing user experience, or solving specific algorithmic problems. Whether it’s for displaying data in reverse order or transforming datasets, understanding how to reverse arrays efficiently is crucial for developers.
Lets first create a simple array in JavaScript and then apply the possible approaches in examples.
let numbers_array = [1, 2, 3, 4, 5];