2 methods and precautions for adding scripts in HTML
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How to add <script> script in HTML: 1. You can directly add javascript code to html Copy code The code is as follows:<script type="text/javascript"> //javascript code </script> When the interpreter embeds <script> code, the processing of the HTML page will also be temporarily stopped. 2. Add external js files Copy code The code is as follows:<script type="text/javascript" src="Address of external .js code"></script> Note: ① In XHTML documents, the </script> tag can be omitted, for example: Copy code The code is as follows:<script type="text/javascript" src="example.js" /> However, the </script> tag cannot be omitted in HTML. This tag does not comply with HTML specifications and therefore cannot be correctly parsed by some browsers. ② It is best to put the <script> tag before the </body> tag, which will enable the browser to load the page faster. ③When using <script> to embed JavaScript code, do not allow the “</script>” string to appear anywhere in the code. For example, a browser will generate an error when loading the following code: Copy code The code is as follows:<script type="text/javascript"> function function1(){ alert("</script>"); } Because according to the rules for parsing embedded code, when the browser encounters the string "</script>", it will think that it is the closing </script> tag. If you want to add a </script> string to the code, you can write it as <\/script> |
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