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How to enable JavaScript in your browser

When javascript is disabled in the browser, web pages may look strange, weird, and broken. Most websites on the internet require Javascript enabled in the browser to work properly. The option to enable or disable it in a browser is usually found in the settings section of each browser - in most cases under Privacy and Security. For example, in Firefox, you can enable it through a hidden configuration menu. The following step-by-step instructions will show you how to enable JavaScript in popular browsers like Google Chrome, Firefox, Opera and Co.

How to show visitors who have not enabled JavaScript an alert message:

Just copy and paste this code to your website:
<noscript>
For full functionality of this site, it is necessary to enable JavaScript.
You can find a step-by-step instruction at <a href="https://www.enable-javascript.net">enable-javascript.net</a> to enable JavaScript in your web browser.
</noscript>

With the above code you can show all your website visitors an info message if they have not enabled JavaScript in their browser.

It helps Javascript deniers to better understand the usefulness of this beautiful programming language and thereby improve their long-term experience on websites.

Where to insert the code?
Insert it preferably after the <body> tag.

How to enable Javascript in the most popular browsers:

 Google Chrome

  1. Click on the three stacked dots on the top right side
  2. Select "Settings"
  3. On the bottom of the site click on "Show advanced settings ..." to expand the hidden options
  4. Under the "Privacy" section, click on the entry "Content settings"
  5. A dialog window opens, and under the headline "JavaScript" select "Allow all sites to run JavaScript (recommended)"

 Internet Explorer

  1. Click on the settings icon and select "Internet Options".
  2. In the opened window selec the "Security" tab
  3. Inside the "Security" tab, select "Internet" as zone and click on the "Custom Level..." button.
  4. In the opened window look for the "Active Scripting" entry (under the "Scripting" category) and select the radio button "Enable" to enable JavaScript in the Internet Explorer.
  5. A "Warning!" window pops out with the alert "Are you sure you want to change the settings for this zone?" select "Yes".
  6. Click the "OK" button in the "Internet Options" window. The browser will ask you if you really want to apply the settings, which you confirm.

 Mozilla Firefox

  1. Open the hidden configuration menu of firefox by typing in "about:config" in the address bar and confirming with Enter
  2. Firefox responds with a warning message - click on the button "I'll be careful, I promise"
  3. The "about: config" area has its own search function (directly below the address bar).
    Enter the following search term:"javascript.enabled"
  4. Firefox then lists the entry for JavaScript which has the value "false" if its deactivated. Double-click the line if you want to enable JavaScript in Firefox. Instead of the value "false" the value "true" should now be displayed.
  5. Reload the page by clicking on the refresh button

 Apple Safari

  1. Click the settings icon in the top right and select "Preferences".
  2. Under the "Security" tab, which is marked with a lock symbol, you will find the entry "Web content".
  3. To enable JavaScript in Safari, check "Enable JavaScript".
  4. Refresh the page by clicking on the "Reload the current page" button of the safari web browser .

 Opera

  1. Open the menu with the Opera icon and click on "Settings"
  2. On the left side you will find the menu item "Websites", which you can select with a simple left-click.
  3. Scroll down to the entry with the headline "JavaScript" and change the selection to "Allow all sites to run JavaScript (recommended)".
  4. Refresh the page by clicking on the "Reload" button of the Opera Browser

What does JavaScript mean?

JavaScript (short: JS) is a scripting language developed in 1995 by Netscape for displaying dynamic HTML content in the browser. The language is easy to understand and is very often used as part of websites. The implementation of JavaScript allows the client-side script to interact with the user and create dynamic pages. JS is an interpreted programming language with object-oriented capabilities. The scripting language was developed as a supplement and integration into Java and HTML. It is considered open and cross-platform.

The scripting language was first called LiveScript by developers, but Netscape eventually changed the name to JavaScript, possibly because of the hype created by the Java programming language. It was first released as LiveScript in 1995 in Netscape 2.0. The universal kernel of JavaScript has been embedded in Netscape, Internet Explorer, Firefox and other web browsers.

Client-side JavaScript
This is the most common form of the language. The script is included in many HTML documents so that the code can be interpreted by the browser. This means that a webpage need not be static HTML, but can contain elements that interact with the user, control the browser, and dynamically create HTML content.

It has many advantages over traditional CGI scripts on a server. For example, a script can be used to verify that the user entered a valid email address in a form field. The JavaScript code is executed when the user sends the form, and only when all entries are valid are they sent to the web server. The scripting language can also be used to register and execute user-triggered events such as button clicks, link navigation, and other actions.

The advantages when you enable JavaScript
When used on the network, the scripting language provides the following benefits:

JavaScript limitations
JS can not be considered a full-fledged programming language. For this it lacks a few important functions:

JavaScript Development Tools
One of the biggest strengths of this language is that it does not require expensive development tools. The scripts can be created with a simple text editor and pasted into an HTML program. Because it's an interpreted language in the context of a web browser, not even a compiler is required.

The scripting language can be used for object-oriented and procedural programs. The language contains many predefined objects, methods, and functions for accessing a web page. Also, the programmers have numerous libraries at their disposal. Libraries are always included in the program code when certain functions are required. This can be used to display or animate tables, graphics or diagrams, for example.

To make life easier for programmers, several vendors have developed very powerful JavaScript editing tools (frameworks). Frameworks help programmers with certain design patterns and functions and facilitate the creation of the program code.

As you can see, there are a lot of positive things to tell why to enable javascript.