javascript .filter() true booleans

Question

function bouncer(arr) {
  // Don\'t show a false ID to this bouncer.
    function a(b) {
      if(b !== false) {
        return b;
      }
    }

    arr = arr.filte         


        

Answer 1

It's because you return the value. The filter function should return true or false like this:

function bouncer(arr) {
    arr = arr.filter(function(x) { console.log(x === true)
       if(x !== false) {
           return true;
       }
    });
    return arr;
}

or shorter:

function bouncer(arr) {
    return arr.filter(function(x) { console.log(x === true)
       return x !== false;
    });
}