performance - Why use a compile_pattern for binary:replace? -

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is there documentation states why 1 should use compile_pattern/1 result pattern binary:replace/4 search for?

i suspect it's performance reasons can't find official states such.

i don't know of documentation explicitly states either, yes, it's performance reasons. if pass non-compiled pattern calls in binary module, compile pattern , use it. means single use, compiling first doesn't matter since call compile anyway. if you're performing multiple matches or replacements using same pattern, makes sense compile once front , pass compiled pattern each of calls.


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