javascript - Script Tag - async & defer - Stack Overflow
Tue Aug 25 2020 20:14:19 GMT+0000 (Coordinated Universal Time)
Saved by @le_wiseman #javascript
This determines where/when the javascript file(linked in the HTML) will be loaded. Async is not fixed/predictable-pages load at the same time. defer loads after the page finishes loading.
https://stackoverflow.com/questions/10808109/script-tag-async-defer
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