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How to make multi-line comments in javascript
- 藏色散人Original
- 2021-04-09 15:09:036209browse
How to make multi-line comments in javascript: first create an HTML sample file; then add a script tag in the head tag; then write javascript code in the script tag; finally use "/*. ..*/" symbols can be used for multi-line comments.
The operating environment of this article: windows7 system, javascript1.8.5&&html5 version, Dell G3 computer.
js single-line and multi-line comment writing format
The role of comments is to improve the readability of the code and help yourself and others read and understand the JavaScript code you write. , the content of the annotation will not be displayed on the web page. Comments can be divided into two types: single-line comments and multi-line comments.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JavaScript-注释很重要</title>
<script type="text/javascript">
document.write("我是单行注释'//'");//该语句在网页中输出的单行注释内容不展示
document.write("我是多行注释'/*注释内容*/'");
/*
哈哈，我是多行注释
神奇的js把我隐藏了，看不见
记得养成良好的注释习惯
*/
</script>
<style type="text/css">
div::selection{
background-color: #00FFFF;
/* color: #fff; */
}
</style>
</head>
<body>
<div>html与css注释还记得如何书写吗</div>
<!-- <div>html与css注释还记得如何书写吗</div> -->
</body>
</html>Summary: The comment content is generally placed at or around the end of the statement that needs to be explained. For single-line comments, add the symbol "//" before the comment content. At the same time, multi-line comments start with "/*" and end with "* /"End, did you find that the multi-line comments of javascript are the same as the comments of css
[Recommended learning: javascript advanced tutorial]
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