less Than Or Equal To Zero javascript

let string = "1";
let number = 1;
if (parseInt(string) === number){
  	// STRING AND NUMBER MATCHES
}
if (string == number){
  // STRING AND NUMBER MATCHES ALSO BECAUSE == instead of ===, means it won't compare datasets, only the content
}function lessThanOrEqualToZero(num) {
    let lessThanZero;
    if ( num <= 0) {
      result = true;
    } else {
      result = false;
    }
    return result;
  }