This code does not return anything, why? I'm running in event "window.onload":
if(innerHeight in window){
console.log('true');
}
I had used the operator again and again, and it worked, but now it came to me ... And then, can anyone help me here?
'innerHeight' in window
As you are looking for a property you should use a String , otherwise it is as if you were searching for the contents of the variable innerHeight in window , that is what you have is: p>
var alturaEmPixeis = windows.innerHeight; // isto é um numero
if (alturaEmPixeis in window){
And you should have
if ('innerHeight' in window){
to know if the object window has the name property innerHeight .