Use !! to see how JavaScript would coerce a real value into a boolean-ish interpretation.
console.log(!!" ") // true
console.log(!!"") // false
console.log(!!"0") // true
console.log(!!0) // false
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Top comments (2)
Heya, actually the last expression console.log(!!"0") should be true not false :)
You're absolutely right. I meant to say !!0 :)