It’s an operator that returns a boolean, ‘falsy’ is false, ’truthy’ is true
It’s an operator that returns a boolean, ‘falsy’ is FALSE, ’truthy’ is TRUE.
Let’s see a few examples:
1!!0 // false
2!!null // false
3!!undefined // false
4!!'' // false
5
6!!'something' // true
7!!"text" // true
8!!12345 // true
9!!0.2 // true
10!![] // true
11!![0, 2, 5] // true
12!!{} // true
13!!{age: 1} // true
I stumbled across this a few days ago. I hope you find it useful