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php - What does the WordPress "_e()" function do?

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php - What does the WordPress "_e()" function do?

I have these all over my theme, and when if I delete them, there nothing happens to the theme. What does it do? Should I leave them in or are they unnecessary? I want to optimize my site to load faster, so this is why I'm asking.

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https://developer.wordpress.org/reference/functions/_e/

In WordPress, strings in the php files are marked for translation to other languages, and localization using two “tags” which are actually functions. They are:

__() _e()


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