How to Use Methods in Button in JavaScript

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In this post http://www.askqtp.com/2012/11/how-to-create-button-in-web.html I have shown how abutton is created in web page.
Here I have shown how to work with methods
https://www.techtravelhub.com/2012/11/how-to-associate-methods-by-using-button.html

With the current post I am planning to show how to use the methods. Recall the methods.

Methods:

TypeMethodsDetails
Methodsblur()It removes the focus from a button
click()Most commonly used method with button. It calls the event handler function defined by developer
focus()This is a method triggered when a button gains focus
handleEvent()This throws an event to correct event handler



So the methods associate with a button are blur(),click(),focus() and handleEvent().


<html>
 <head>
 <title> Testing button </title>
 <script language=”javascript”>
//This is the function  which will be activated on click on the button
function focusLoss()
{
 document.form1.button1.blur();
 }
 </script>
 </head>
 <body>
 <form name=”form1″>
// There is no method defined so after clicking the focus will be there itself.
 <input type=”button” name=”button2″ value=”Click me i am 1″ />
// This is a method which uses blur() function to loose focus when clicked on a the button
 <input type=”button” name=”button1″ value=”Click me” onClick=’focusLoss()’/>
 </body>
</html>

Let us see how the output comes

Now let us click on the second button…

<input name=”button1″ onclick=”focusLoss()” type=”button” value=”Click me” />
Here on clicking the button the focusLoss function is called which again calling blur() method.So on clicking on the button it should remove the focus. Let’s see how it works…


Here you can do what ever you want to do..

function focusLoss()
{
document.form1.button1.blur();
document.form1.button2.focus();
 }
 </script>

Here you are taking focus from second and assign to the first.

READ  How To Work With Conditional Radio Buttons in JavaScript

image credit: http://www.dragonartz.net


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I am the founder and owner of the blog - TechTravelHub.com, always love to share knowledge on test automation,tools,techniques and tips.I am a passionate coder of Java and VBScript.I also publish articles on Travel ideas and great honeymoon destinations.Apart from these, I am a gear-head,love to drive across India. I have shared lots of articles here on How to travel several parts of India.Customization of cars aka car modification is my another hobby.Get in touch with me on ani01104@gamil.com

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