kaivan1986 Posted September 16, 2011 Share Posted September 16, 2011 Why do we prefer to write javascript in head tag rather than body tag. Link to comment https://forums.phpfreaks.com/topic/247256-javascript-in-head-tag/ Share on other sites More sharing options...
Adam Posted September 16, 2011 Share Posted September 16, 2011 We don't, always. Placing JavaScript within the head means it's executed before the page is loaded. JavaScript within the body is executed as that point in the mark-up is parsed - if that makes sense? Think of having one external JavaScript within the head called "pre-load.js", and one just before the closing body tag called "post-load.js". Of course if you try to interact with the DOM in a pre-load script it won't work, as it doesn't exist. So executing code pre-load is quite limited, and is why people wrap it within an onload event. The reason more and more people are starting to include a script before the closing body tag, is to allow the page to load faster and escape using the onload event. Link to comment https://forums.phpfreaks.com/topic/247256-javascript-in-head-tag/#findComment-1269830 Share on other sites More sharing options...
kaivan1986 Posted September 16, 2011 Author Share Posted September 16, 2011 Thanks.... Link to comment https://forums.phpfreaks.com/topic/247256-javascript-in-head-tag/#findComment-1269837 Share on other sites More sharing options...
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