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async vs defer

Vivacious Vendace answered on October 9, 2020 Popularity 10/10 Helpfulness 4/10

answer async vs defer

related javascript normal vs async vs defer

async vs defer

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Check this image for better understanding
//https://i.stack.imgur.com/wfL82.png

Async scripts are executed as soon as the script is loaded, so it doesn't guarantee the order of execution (a script you included at the end may execute before the first script file )
Defer scripts guarantees the order of execution in which they appear in the page.

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Contributed on Oct 09 2020

Vivacious Vendace

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javascript normal vs async vs defer

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<script type="text/javascript" src="normal-script.js"></script>
<script type="text/javascript" src="async-script.js" async></script>
<script type="text/javascript" src="defer-script.js" defer></script>

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Contributed on Jul 17 2021

Syntax Error

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async vs defer

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