Comments in JavaScript - JavaScript Tutorial 03
Notes for You:: Comments in JavaScript - JavaScript Tutorial 03
Comments are something like notes in the code.
Comments are used to increase the readability and understandability of the source code.
Comments are used to document the source code.
Comments are ignored by the browsers.
Comments are used to explain code logic, so that we can understand the code later as well as other developers can read and understand the code easily.
If we don’t want to execute some part(s) of the code, we can comment them so that they can be ignored by the browsers.
There are 2 types of comments in JavaScript:
1. Single line comment:
anything written after // is treated as a comment
2. Multiline comment:
anything written in between /* and */ is treated as a comment
Example Code:
<script type="text/javascript">
// document is a built in javascript object, which refers to HTML document
/*
document is a built in javascript object, which refers to HTML document
write is a method in document object, which is used to display content
*/
// document.write("Hello World! <br/>");
/*
document.write("Hello World! <br/>");
document.write("Hello World! <br/>");
*/
document.write("Hello World! <br/>");
</script>
Note:
replace < with less-than symbol
replace > with greater-than symbol
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