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Let's develop a small application that simply changes the background with JavaScript.

Emir Eskici

PlusClouds Author

Cloud & SaaS

How to Change Background Color with JavaScript

Background Changer with JavaScript

Hello, in this blog, I will show you a small-scale application that you can develop further, just like in other blogs. Let's explore this quite simple and fun application together thanks to the Background Changer with JavaScript (Change the Background Color in JavaScript)

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For other projects/applications (see: Blog)

HTML

Let's start by creating a set of buttons that will give us the color options we want and handle our processes on the HTML side by giving these buttons the onClick feature
Description

JS

Let's define the onClick functions we assigned to the buttons in our HTML code.

function green(){
    document.getElementById("ColorBody").style.backgroundColor="green"
}
// I simply selected the element with the Id 'ColorBody' and gave the selected element a green color using the style property backgroundColor
function red(){
    document.getElementById("ColorBody").style.backgroundColor="red"
}

function blue(){ document.getElementById("ColorBody").style.backgroundColor="blue" }

function yellow(){ document.getElementById("ColorBody").style.backgroundColor="yellow" }

Result

Description

#There is no text provided for translation. Please provide the text you would like to be translated into English.

Frequently Asked Questions

What does the green function do in the background color changer example?

The green function selects the element with the ID ColorBody and sets its backgroundColor style property to green. This demonstrates how a JavaScript function can change the page background by directly manipulating the DOM.

Which element is targeted to change the background color in this tutorial?

The element with the ID ColorBody is targeted. The code uses document.getElementById("ColorBody").style.backgroundColor to apply the color.

How are the color-changing actions wired up in the HTML?

A set of buttons is created with onClick handlers that call the JavaScript functions. The code defines four functions named green, red, blue, and yellow to set the corresponding background colors.

Which colors are used in the sample to change the background?

The sample uses green, red, blue, and yellow. Each function sets document.getElementById("ColorBody").style.backgroundColor to the respective color.

What steps do I follow to reproduce this on my own page?

Create the color buttons with onClick attributes, then implement the JavaScript functions that set the ColorBody element’s backgroundColor. The example shows selecting the element by its ID and assigning a color value.

What does the Result section show after running the code?

The Result section includes a GIF image illustrating the background color change. It visually demonstrates the effect of selecting a color.

Where can I learn more about changing the background color in JavaScript as described?

The post links to Change the Background Color in JavaScript for further details. This provides additional context beyond the example.