How do you comment out a JavaScript in HTML?
How do you comment out a JavaScript in HTML?
Creating Single Line Comments To create a single line comment in JavaScript, you place two slashes “//” in front of the code or text you wish to have the JavaScript interpreter ignore. When you place these two slashes, all text to the right of them will be ignored, until the next line.
Does HTML comment work in JavaScript?
Yes, it is considered as a best practice, since this is to save our code from a browser that does not support JavaScript. The comment ends with a “//–>”. Here “//” signifies a comment in JavaScript, so we add that to prevent a browser from reading the end of the HTML comment as a piece of JavaScript code.
How do you write comments in the HTML and JavaScript?
A single-line comment can appear anywhere on a line. To create a single-line comment, you type two forward slashes (//) and then the comment text. Here are examples of single-line comments. Each line begins with a double slash (//) to indicate that it’s a comment line.
Why is JavaScript enclosed in HTML comments?
So when javascript was first released, a technique was needed to hide the code from older browsers so they wouldn’t show it as text in the page. The ‘hack’ was to use HTML comments within the script block to hide the code.
How do you comment out JavaScript code?
JavaScript comments are used to write notes in your code or to disable sections of code without deleting them. Comments are made in JavaScript by adding // before a single line, or /* before and */ after multiple lines.
How do you comment out a code in HTML?
To comment out in HTML, insert information between — and –> tags (browsers won’t show these notes). Commenting in HTML allows developers to leave notes about their code, its functionality or to indicate necessary changes for the future.
How do I comment HTML CSS and JavaScript?
To create a single line comment in JavaScript, begin the line with two forward slashes ( // ). Here’s an example of that: // This text is a comment and will be ignored! You can also add a single line comment on the same line as some code.
How do you comment in JavaScript?
How do you write comments in JavaScript?
Why do we insert comments in an HTML document even though they are not displayed on a Web page?
The comment tag is useful during the debugging of codes. It is a simple piece of code that is wiped off (ignore) by web browsers i.e, not displayed by the browser. It helps the coder and reader to understand the piece of code used for especially in complex source code.
Which is not the correct way to write comments in JavaScript?
Multi-line comments start with /* and end with */ . Any text between /* and */ will be ignored by JavaScript.
What is a comment in JavaScript?
JavaScript Comment. The JavaScript comments are meaningful way to deliver message. It is used to add information about the code, warnings or suggestions so that end user can easily interpret the code. The JavaScript comment is ignored by the JavaScript engine i.e. embedded in the browser.
How do you comment multiple lines in JavaScript?
A multi-line comment in JavaScript starts with a forward slash followed by an asterisk (/*) and ends with an an asterisk followed by a forward slash (*/). Everything between the /* and */ is considered a comment. This type of comment can span multiple lines.
What is comment tag?
Definition and Usage. The comment tag is used to insert comments in the source code. Comments are not displayed in the browsers. You can use comments to explain your code, which can help you when you edit the source code at a later date. This is especially useful if you have a lot of code.
What is the tag for HTML comment?
The is an HTML comment tag.