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Home / Miscellaneous / Cast Any Value to a Boolean

Cast Any Value to a Boolean

Cast Any Value to a Boolean

In JavaScript, you can use !! to convert anything to boolean.

For instance here are some examples:

!!true    // true
!!2       // true
!![]      // true
!!"Test"  // true

!!false   // false
!!0       // false
!!""      // false

Source

https://medium.com/geekculture/20-javascript-snippets-to-code-like-a-pro-86f5fda5598e

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