Javascript - How Hoisting Affects Variables and Functions

Published: 05 March 2015
on channel: A Tech Apart

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declare and assign all local variables at the beginning of a function to prevent complications due to hoisting

hoisting happens when javascript automatically moves a variable declaration to the top of a function, but doesn't move the value assigned to it, so it defaults the value to undefined

the same rules apply with functions declared inside a function, depending on how they're defined

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