The following is JavaScript to understand the program code and running screenshots of calling functions with parameters and functions without parameters
Table of contents
1.1 Operation process and ideas
2.1 Operation process and ideas
foreword
1. If you have a choice, you can quickly search in the directory;
2. The code of this blog post can realize relevant functions according to the requirements of the topic. At the same time, custom settings can be realized;
3. This article introduces JavaScript code exercises. The software used in this blog post is the code written by HBuilder X3.7.9. In principle, other software such as DW, VSCode or DW lower or higher versions are compatible. If you have In principle, it is possible to run normally if the software is required and the written software is not HBX;
Figure 1 Example of writing software (partial)
4. Here is a special explanation, because I use HBX, so it is in the web format, I also pasted the <script> statement separately, if necessary, you can directly copy the <script></script> statement;
5. The code of this blog post was written by me when I was in school. There are some places that have not been perfectly implemented. Please forgive me and give me more advice. If you find any problems, please feedback them to me so that I can correct the mistakes and summarize and improve them. , Continuous improvement!
6. Blog posts usually need to be run in a browser, usually a form will pop up, enter a value and get the result. This article uses Google Chrome, and Google Chrome is recommended;
7. If infringement is involved, please contact to delete;
提示：以下是本篇文章正文内容，下面案例可供参考
1. Functions with parameters
1.1 Operation process and ideas
This is the code that implements the function with parameters. The specific thought process is as follows:
1.2 Code snippet
The code is as follows (example):
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script>
function add(x,y)
{
var result=x+y;
alert(result);
}
add(1,2);
</script>
</head>
<body>
</body>
</html>
1.3 JavaScript statement code
The code is as follows (example):
<script>
function add(x,y)
{
var result=x+y;
alert(result);
}
add(1,2);
</script>1.4 Run screenshot
The running results are as follows (example):
1.4.1 Browser pop-up form display results
2. No parameter function
2.1 Operation process and ideas
Here is the code to implement the no-argument function. The specific thought process is as follows:
2.2 Code snippet
The code is as follows (example):
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script>
function add()
{
var result=2+3;
alert(result);
}
add();
</script>
</head>
<body>
</body>
</html>
2.3 JavaScript statement code
The code is as follows (example):
<script>
function add()
{
var result=2+3;
alert(result);
}
add();
</script>2.4 Run Screenshot
The running results are as follows (example):
2.4.1 Browser pop-up form display results
