JavaScript is a special type of programming language that is based on object representations browser. It is necessary in order to provide the site with greater interactivity compared to conventional static HTML documents. For example, in the interface custom type it will be possible to implement changing drawings, a creeping line from text content and much more! That's why it's important to know how to enable JavaScript in Firefox and other browsers.
JavaScript differs in that the text of software developments is embedded in HTML documents and parsed by the browsers themselves. JavaScript is a language for programming scripts on web pages.
Types JavaScript differences from JavaKnowing the designation of the term JavaScript, many users indiscriminately confuse this type of term with another concept - Java. Although the languages are similar due to their names, they have different types values. The main types of differences are in difficulty and in the number of advanced types of opportunities. Before you learn how to enable JavaScript browser, it is necessary to understand its characteristic features.
The implementation of "JavaScript" is more free compared to Java. For example, data type conversions occur in the simplest way. Also, the programmer will not need to compile initial code software development in the JavaScript language, in other words, it is an interpreted type of language.
How does this happen in JavaScript and in Java? In JavaScript, the program processes one line after another, informing about errors is issued after each line read, if there are any. In Java, the compiler shows these types of information after reading the complete text of the software design.
Before you enable JavaScript, remember that it is not intended to be a language replacement. Java programming. It is best to use the first type of language as a complement to the second.
With JavaScript support you can create dynamic types HTML documents. Static Views HTML pages gone into the past tense. "JavaScript" connects all the building blocks of applications into a single whole. In other words, it serves as a foundation builder, doing checks on HTML form fields until they are submitted to the server. Knowing how to enable JavaScript in Firefox and other browsers is essential for them to work correctly online.
Management software developments in this programming language go through local administrations communication data. Users have the opportunity to observe in various windows the types of warning messages that are displayed with JavaScript support.
What's happened JavaScript error and how to run JavaScriptLet's start with the fact that JavaScript makes it possible to add various interactive services, safe addition of voting (surveys) and similar content without the risk of unnecessary page reloading. In these cases, types of scripts significantly help save user traffic and allow you to copy graphics High Quality, create types of galleries with images and do many other functions useful type. But then, in order to run types of scripts, you first need to activate them.
Next, you need to remember about regular types problems of network users. In recent times, there has been an increase in situations where a person, having visited his page on a social network, finds error messages at the top of the windows: “JavaScript error”, “JavaScript is not enabled”, “For correct operation JavaScript must be enabled on the site." In such cases, users have problems uploading photos and videos on the social network.
In fact, the method of running scripts is very simple, you only need to perform a few elementary actions that can do even the most inexperienced users. Step-by-step instruction as follows:
- First you need to launch your personal browser Mozilla Firefox;
- after that, open the browser options, then click on the corresponding button in the form of three parallel lines next to the introduction line;
- now a huge window with many tabs has opened in front of you; the one you need is called “Content”, click on it;
- then it’s even simpler: find the line “Use JavaScript” and check the box next to it;
- Click "OK" and restart your personal browser.
At this point, the instructions on how to enable JavaScript in Firefox can be considered complete.
Disabling JavaScriptAccordingly, if the need to use JavaScript is no longer necessary, you can disable it in the same way as written above this type functions. To do this, also go to “Settings” - “Content”, uncheck the box next to “Use JavaScript”. Ready!
In addition, if you have Mozilla browser Firefox updated to latest version, then it would be good to check whether the settings have been lost after updates, as sometimes this happens. It is also worth noting that almost all types of social networks use interactive types of forms, therefore, without the included types of scripts, it will not be possible to fully view pages.
I can be unavailable messages, alerts, discussions. Sometimes failures occur, and if in social networks Some types of sections suddenly became inaccessible, but at the same time there are types of scripts activated in the browser, try turning them off and then turning them on again. Perhaps this method will solve the problem. If not, then there is always the option of resetting the options to standard. How to enable JavaScript in Internet Explorer and in other browsers? The same way.
JavaScript is a programming language that allows you to create scripts that are embedded in HTML pages and executed in the browser of the page visitor.Modern browsers are required to support JavaScript language.
JavaScript commands are added to web pages using the tag, and the executable script must be entered in the Text window of the WordPress CMS. There can be as many containers in one document as you like. The “type=’text/javascript’” attribute is optional, since the default is javascript.
Here's an example:
document. write("Output text using a standard JavaScript command.");
The tag's type attribute tells the browser which scripting language commands are embedded next before the closing tag.
When mastering the JavaScript language, you first need to master comments, which should be used especially often when you first start using the language.
JavaScript allows short comments—comments that are no longer than the length of the line. Anything after two characters // to the end of the line will be a short comment. Here are two examples of short comments:
// 1. The command below displays the Paragraph in bold
document. write(");
document. write( Hello, World!); // 2. Output in italics the string Hello, World!
Additionally, JavaScript allows multiline comments—comments that span multiple lines. Here is an example of such a comment:
/*
The first command displays the paragraph in bold,
and the second command displays the paragraph in italics
*/
document. write("
Paragraph displayed in bold font.
" ); document. write("Paragraph written in italics.
» );It is impossible to describe all the features of the JavaScript language on one page; on it I will write down only the most significant, in my opinion, features of the language.
The script of this language can either be embedded directly in the HTML code of the page, or placed in a file that can be called different pages. Here is an example of calling a file with a script:
If the src="… " attribute is specified, then the contents of the tag are ignored, that is, in one script tag you cannot simultaneously include an external script and specify the code, so you need to choose: the script either contains src or contains code. If necessary, we simply add the code to another script.
By the way, WordPress versions 4.0 does not recognize JavaScript code in the HTML code of pages and spoils it by hiding JavaScript code behind
