Iterative Conditional Removal Of Object Property Using 'for..in' And 'if'

The function should remove any property that meets the 'if' condition inside the 'for' loop, but it doesn't.

Solution 1:

You miss the square brackets, while defining the object key to delete.

functionremoveNumbersLargerThan(num, obj) {
  for (var key in obj) {
    if (!isNaN(obj[key]) && obj[key] > num) {
      delete obj[key];
    }
  }
  return obj;
}
var obj = {
  a: 8,
  b: 2,
  c: 'montana'
}
removeNumbersLargerThan(5, obj);
console.log(obj); // Should be {b: 2, c: 'montana'}

Solution 2:

You should replace delete obj.key; with delete obj[key];