Toggle Text of HTML Element with JavaScript onclick

In this tutorial we will see how to Toggle Text of HTML Element with JavaScript onclick. The onclick event is used with HTML Dom id property, getElementsByName method and getElementsById method.


HTML Code is given below, This code contains button element with onclick event and a paragraph text.

<!DOCTYPE html>
<html lang="en">
<meta charset="utf-8">
<title>Toggle Text of HTML Element with JavaScript onclick</title>
<p id="text"></p>
<button name='button' id='1' onclick="changeText()">Change Text</button>

onclick Event

JavaScript Code is given below, In this code the onclick event is used to toggle the text inside paragraph element.

The onclick event occurs when an element is clicked, it is used to call a JavaScript function when click event is occurred.

In this simple example, the onclick event calls a main function, then id of button element is checked, if id is 1 then text of paragraph is changed to 'Learn Programming' and the id of button is set to 0.

On next click, the id of button will be 0, as it was changed on first click, so the lines inside else will be executed and text will change back to ''.

HTML DOM id Property, getElementsByName method and getElementById method are also used in this example.

HTML DOM id Property

The HTML DOM id Property sets or returns the id of selected html element. In this example it is used to first read the id of button element and then to change it.

getElementsByName method

The getElementsByName method returns the html element with defined value of name attribute. In this example the name is 'button'. It is used to select the button element to read it's id.

Since we are changing the id of button again and again so we can't use it to select it.

getElementById method

The getElementById method is used to select html element with specific id, in this example we are using it to select the paragraph element to change it's text.

JavaScript Code

Take a look at the code given below.

function changeText()
var id=document.getElementsByName("button")[0].id;
document.getElementById("text").innerHTML = "Learn Programming";
document.getElementById("text").innerHTML = "";  


Video Tutorial

Watch video tutorial on how to Toggle Text of HTML Element with JavaScript onclick.

Password Show Hide with Eye Icon using JavaScript Change Background Color using Dropdown menu with JavaScript Get Select Tag value onchange in JavaScript Check If Class Exists JavaScript Add Event Listener To all Elements of Class JavaScript getElementsByTagName Event Listener JavaScript Change type attribute of Input Element With JavaScript Password Hide and Show with Toggle Emoji Button using JavaScript Hide and Show Navbar On Scroll With JavaScript Empty an Array in JavaScript Get Last Element Of Array Without Removing It Remove Last Element From Array JavaScript Remove First Element From Array in JavaScript Tic Tac Toe Game in JavaScript Remove Class from HTML Tag OnClick JavaScript JavaScript Select li Tag By Index Display JavaScript Variable In HTML Insert HTML Code anywhere With JavaScript JavaScript Date Difference in Days JavaScript Hide Button After Click Simple Click and Hold Effect Using JavaScript Remove Class From All Elements in JavaScript JavaScript Select All HTML Elements Whose ID Start With Same String