Implement a Falsy Remover - Implement a Falsy Remover

JavaScript
1

Tell us what’s happening:

I dont understand why my .push() makes an error and i need to JSON stringify it. Also it dosnt work and i can’t understand what is wrong.
I used to be able to push things into an array easily ( i think).

Why is there “TypeError: String is not a function”

Your code so far

function bouncer(arr){
  let i = 0;
  let newArray = [];
  for(let arg of arr){
    if(arg == false || arg == null || arg == "" || arg == undefined || arg.isNaN){
      console.log(arg + " -> got shot outta space")
    }
    else{
      newArray.push(arg);
      i++;
    }
  }
  return newArray;
}

console.log(JSON.stringify(bouncer(["a", "b", "c", 12, false, null, 0, NaN, undefined, "" ])));

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Challenge Information:

Implement a Falsy Remover - Implement a Falsy Remover

2

Check your isNaN line — arg.isNaN doesn’t work for NaN.