The Utter Uselessness of Some Tech Questions in Interviews

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Hoisting is (to many developers) an unknown or overlooked behavior of JavaScript. If a developer doesn’t understand hoisting, programs may contain bugs (errors). To avoid bugs, always declare all variables at the beginning of every scope. Source

Duh, of course, any logically thinking person would know that variables should be declared before used, why should someone remember totally useless new term? Just reminds Scientology, or any other cult, when in order to m...