Today i see something like this

const a = 1 && 2 && 3 && 4

And when we console.log this it will return 4

As my understand, i think it will return true mean, 1 ,2 ,3 ,4 do not consider falsy value, so it will return true, but this make me think about condition

From when i learn javascript, i always read condition like this:

if(1 &&2 ) {
   return true
}

So i think 1&&2 will return true, apply for above code, why it return 4 ?