Tuesday, 5 June 2018

Chaudhari Karan

JavaScript – Enabling

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JavaScript – Enabling

Hello friends, In this lecture, we will discuss Enabling of JavaScript.
JavaScript – Enabling


All the browsers are supported by built-in JavaScript. In short, you need to enable or disable this support manually. Here it explains the procedure of enabling and disabling JavaScript support in browsers like Firefox, Chrome, Internet Explorer and Opera.


JavaScript in Firefox


Here are explains how to turn on or turn off JavaScript in Firefox:
  • Open the Firefox browser.
  • In new tab type about: config in the address bar.
  • Then you got the warning dialog in the browser.
  • Then find the list of configure options in the browser. 
  • Then type javascript.enabled in a search bar
  • Then click the option to enable or disable javascript by right-clicking.

JavaScript in Internet Explorer

Here are explains how to turn on or turn off JavaScript in Internet Explorer:
  • Open the Internet Explorer browser.
  • Click on Tools then go Internet Options from the menu.
  • Select Security tab from the dialog box.
  • Then click on the Custom Level button.
  •  Find the Scripting option.
  • Select Enable radio button under Active scripting.
  • Then click OK and come out.

To disable JavaScript support in Internet Explorer, select Disable radio button under Active scripting.

JavaScript in Chrome

Here are explains turn on or turn off JavaScript in Chrome:
  • Open the Chrome browser.
  • Click on the menu option.
  • Then go to Settings.
  • Click on the Show advanced settings.
  • In Privacy section, click on the Content settings button.
  • In the "JavaScript" section, select the option "Do not allow any site to run JavaScript" or "Allow all sites to run JavaScript (recommended)".

JavaScript in Opera

Here are explain how to turn on or turn off JavaScript in Opera:
  • Click on the Tools and select Preferences from the menu.
  • Then select Advanced option.
  • Click on the Content from the list
  • Then click on the Enable JavaScript check box.
  • Then click OK and come out.
  • To disable JavaScript support in Opera, not select the Enable JavaScript check box.

Warning for Non-JavaScript Browsers

If your browser does not support the JavaScript, then <noscript> tag is used for show any message in the browser.

Example:
JavaScript – Enabling, Warning for Non-JavaScript Browsers


In this example, if your browser does not support the JavaScript then <noscript> tag message will show. Otherwise, JavaScript code runs on the browser.
  

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