Question about where javascript should be stored

Source: Internet
Author: User
When a page is loaded, JavaScript in the body is executed. When called, the JavaScript code in the head part is executed. The instance head section contains the function script in the head section of the document. In this way, we can ensure that the script has been loaded into... SyntaxHighlighter. all ();

 

When a page is loaded, JavaScript in the body is executed.

When called, the JavaScript code in the head part is executed.

Instance

Head Section

The script containing the function is located in the head part of the document. In this way, we can ensure that the script has been loaded before calling the function.

Body section

Execute the script in the body part.

External JavaScript

How to access external scripts.

Where to place JavaScript

The script on the page will be executed immediately after the page is loaded into the browser. We don't always want this. Sometimes, we want to execute the script when the page is loaded, and in other cases, we want the script to be executed only when the user triggers the event.

Scripts in the head section:

 

When a script is called or an event is triggered, the script is executed. After you place the script in the head part, you can ensure that it has been loaded before you need to use the script.

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