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assert()

assert (v [, message])

Calls error if the value of its argument v is false (i.e., nil or false); otherwise, returns all its arguments. In case of error, message is the error object; when absent, it defaults to "assertion failed!"

Links:

https://www.lua.org/manual/5.3/manual.html#pdf-assert

doc_lua

2017-02-21 04:10:13

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