How to change the image source attribute using Javascript
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In this easy tutorial i will be showing you how JavaScript changes the value of the src (source) attribute of an img tag.JavaScript can change any kind of HTML element on a webpage because it has One of many JavaScript HTML methods called getElementById().

This example uses the method to find an HTML element with id="bulb" and changes the image src (source) attribute to a given image.

Absorbing this amount of content would be alot if you are just reading it,so i have put together a very simple video for you to understand the code below.

Simple HTML code - copy to text Editor
<!DOCTYPE html>

       <div class="container">
           <div class="controllers">
                  <button id="On">Switch on</button>
                <img id="bulb">
                <button id="Off">Switch off</button>

Javascript Code

//Initialize the default bulb
//Grab on the switch on btn and add an event(click)
//Grab on the switch off btn and add an event(click)
//Runs when the switch on button is clicked
function switchOn(){
    let On = document.getElementById('bulb');
    On.src = 'img/bulbon.gif';

//Runs when the switch off button is clicked
function switchOff(){
    let Off = document.getElementById('bulb');
    Off.src = 'img/bulboff.gif';


To download source code: click here description

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collections_bookmark Category :: Javascript
date_range Published :: 4 years ago At: 02:38 PM
event_note Detailed Date :: Jan 21st, 2019
person Writer :: Code
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