Falsy Bouncer|FreeCodeCamp

应该是没有get到题目的意思……

别人的代码

function bouncer(arr) {
  // Don't show a false ID to this bouncer.
  return arr.filter(isTrue);
}

function isTrue(ele){
  if( ele ){
    return ele;
  }
  
}

bouncer([7, "ate", "", false, 9])

function isjia(b) {

var x = Boolean(b)
return x;
}
function bouncer(arr) {
// Don’t show a false ID to this bouncer.
var filtered = arr.filter(isjia);
return filtered;
}

bouncer([7, “ate”, “”, false, 9]);

自己写的

function bouncer(arr) {
  // 请把你的代码写在这里
  for(var i=0;i<arr.length;i++){
    arr.filter(arr[i]=false||arr[i]=null||arr[i]=0||arr[i]=undifined||arr[i]=NaN||arr[i]="");
  return arr;
  }
  
}

bouncer([7, "ate", "", false, 9]);