Where to put the javascript script

Javascript scripts can be placed in: 1. In the body part of HTML, JavaScripts scripts will be executed when the page is loaded; 2. In the head part of HTML, JavaScripts scripts will be executed when called.

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

Location of javascript script:

• HTML body part, JavaScripts will be executed when the page is loaded.

• In the HTML head part, JavaScripts will be executed when called.

Note: The JavaScripts in the

page will be executed immediately when the browser loads the page. We do not want this to always be the case. Sometimes we want a script to be executed when the page loads, and sometimes we want to execute the script when the user triggers an event.

Scripts in the head section: Scripts that need to be called to be executed or scripts that are triggered by events are placed in the head section of HTML. When you place a script in the head section, you ensure that the script is loaded before any calls are made.

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