02 - Enable Disable Javascript


Now that your interest is picked up and you want to learn how to code using Javascript, the first thing you need to ensure is that Javascript is in fact enabled in your Browser.

Why Enable Javascript in my browser?

Most modern web pages have javascript embedded in them. It is what gives the web page its “cool factor”: its content is dynamic. The web page is responsive to the users action: it makes it interactive. It allows you to access your various online accounts. It allows you to retrieve your password when you have forgotten it. It allows you to start or stop and resume your downloads. In essence your digital life would be very different if it weren’t for the humble code residing in your browser, a code written in Javascript.

Why would I want to Disable Javascript in my browser?

Many people disable Javascript because of security reasons. Bad coding practices create vulnerabilities in your code. Many browsers have had their vulnerabilities exploited using Javascript. Many of these vulnerabilities have been quickly patched, but the fear still lingers that these could be exploited only because Javascript was running. It is safe to say that most of these fears are mostly unfounded.

Disabling Javascript also has a slight beneficial side effect: it prevents some online advertisements from loading. There are far better methods to disable online advertisements than by disabling Javascrpt.

Enable/Disable Javascript in Google Chrome

  1. Click on Chrome’s menu and click on "Customize and control Google Chrome".
    1. Select "Settings".
  2. Click on “Show Advanced Settings”.
  3. Click on “Privacy”
    1. Click on “Content Settings”
  4. Browse down to Javascript and enable / disable
    1. “Allow all sites to run JavaScript (recommended)”
  5. Click on the Ok button and close the settings tab.
  6. Press F5 or just reload the webpage.

Enable/Disable Javascript in Microsoft Internet Explorer

  1. Click on the Tools Menu
    1. Select “Internet Options”
  2. Select the Security Tab
  3. Click on “Custom Level”
  4. Browse down to the “Scripting” section
  5. Click on “Active Scripting” to enable / disable
  6. Click “Yes” when asked “Are you sure you want to change the settings for this zone?”
  7. Click on the “OK” button to close.
  8. Press F5 or just reload the webpage.

Enable/Disable Javascript in Mozilla Firefox

  1. Keyin the words ‘about:config’ in the address bar and press ENTER.
  2. Click on “I'll be careful, I promise”
  3. Search for javascript.enabled and enable/disable it

Enable/Disable Javascript in Apple Safari

  1. Click on the “Edit” Menu
    1. Click on “Preferences”
  2. Select the “Security” tab
  3. Browse down the section that says  “Web Content”
  4. Click on “Enable Javascript” to enable/disable Javascript
  5. Press F5 or just reload the webpage.

Enable/Disable Javascript in Opera

  1. Click on “Menu”.
  2. Click on “Settings”.
  3. Hover on “Quick Preferences”.
    1. Select “Enable Javascript” to enable/disable Javascript.

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