Javascript logical operators | | and & how to use &

This article mainly explains "javascript logical operator | | and & & how to use". The explanation in this article is simple, clear and easy to learn and understand. Please follow the editor's train of thought to study and learn "javascript logical operator | | and & & how to use"!

1. As long as "| |" is preceded by false, regardless of whether "| |" is followed by true or false, the result returns the value after "| |".

2. As long as "| |" is preceded by true, regardless of whether "| |" is followed by true or false, the result returns the value before "| |".

3. As long as "& &" is preceded by false, and whether "& &" is followed by true or false, the result will return the value before "& &".

4. As long as "& &" is preceded by true, regardless of whether "&" is followed by true or false, the result will return the value after "& &".

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