如何修复脚本标签中的 src 属性
[英]How to fix src attribute in script tag
问题描述
This is my code in my html:
这是我在 html 中的代码：
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<button onclick="run">Hello World</button>
</body>
<script src="index.js">
</script>
</html>
And this is my file index.js code, which is in the same folder:这是我的文件 index.js 代码，它在同一个文件夹中：
function run() {
console.log('Example');
alert()
}
My problem is, the button won't reach the function run(), it's not recognising it.我的问题是，按钮无法到达函数 run()，它无法识别它。 I also tried doing run() on the onclick="" And still didnt work.我也尝试在 onclick="" 上执行 run() 并且仍然没有工作。
2 个解决方案
解决方案1
1 2020-10-19 12:56:11
You need to change the onclick function call as below.您需要更改 onclick 函数调用，如下所示。
function run() { console.log('Example'); alert('Test') }
<!DOCTYPE html> <html> <head> <title></title> </head> <body> <button onclick="run();">Hello World</button> </body> <script src="index.js"></script> </html>
解决方案2
0 2020-10-19 15:26:30
The reason that the code does not run is because you forgot to include () after the function name.代码不运行的原因是你忘记在函数名后包含() 。
If you instead write your button like this it will work:如果您改为这样编写按钮，它将起作用：
<button onclick="run()">Hello World</button>
While I'm at it, I might also suggest at least moving the script tag to the bottom of the body tag, instead of having it outside.当我在做的时候，我也可能建议至少将script标签移到body标签的底部，而不是把它放在外面。 Alternatively, you could write <script defer src="... and put it in the <head> tag或者，您可以编写<script defer src="...并将其放在<head>标记中
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