All the modern browsers come with built-in support for JavaScript. Frequently, you may need to enable or disable this support manually. This chapter explains the procedure of enabling and disabling JavaScript support in your browsers: Internet Explorer, Firefox, Chrome, and Opera.
JavaScript in Internet Explorer
Here are simple steps to turn on or turn off JavaScript in your Internet Explorer −
- Follow Tools → Internet Options from the menu.
- Select the Security tab from the obrolan box.
- Click the Custom Level button.
- Scroll down till you find Scripting option.
- Select Enable radio button under Active scripting.
- Finally, click OK and come out
To disable JavaScript support in your Internet Explorer, you need to select Disable radio button under Active scripting.
JavaScript in Firefox
Here are the steps to turn on or turn off JavaScript in Firefox −
- Open a new tab → type about config in the address bar.
- Then you will find the warning dialog. Select I’ll be careful, I promise!
- Then you will find the list of configure options in the browser.
- In the search bar, type javascript.enabled.
- There you will find the option to enable or disable javascript by right-clicking on the value of that option → select toggle.
If javascript.enabled is true; it converts to false upon clicking toggle. If javascript is disabled; it gets enabled upon clicking toggle.
JavaScript in Chrome
Here are the steps to turn on or turn off JavaScript in Chrome −
- Click the Chrome sajian at the top right-hand corner of your browser.
- Select Settings.
- Click Show advanced settings at the end of the page.
- Under the Privacy section, click the Content settings button.
- In the "Javascript" section, select "Do not allow any site to run JavaScript" or "Allow all sites to run JavaScript (recommended)".
JavaScript in Opera
Here are the steps to turn on or turn off JavaScript in Opera −
- Follow Tools → Preferences from the menu.
- Select an Advanced option from the obrolan box.
- Select Content from the listed items.
- Select Enable JavaScript check box.
- Finally, click OK and come out.
To disable JavaScript support in your Opera, you should not select the Enable JavaScript checkbox.
Warning for Non-JavaScript Browsers
If you have to do something important using JavaScript, then you can display a warning message to the user using <noscript> tags. You can add a nonscript block immediately after the script block as follows −
<htm l>
<body><script language="javascript" type="text/javascript"><!--docum ent.write("Hello World!")//--></script><noscript>Sorry...JavaScript is needed to go ahead.</noscript></body></htm l>
Now, if the user's browser does not support JavaScript or JavaScript is not enabled, then the message from </noscript> will be displayed on the screen.
I hope you enjoyed this post and pictures How to Enable JavaScript in Browser
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