title: If Statement not runing inside setter
body: <p>im fairly new to programing (about a week lol), but here is a boiled down peice of script i wrote, and i cant seem to get it to output correctly. for the number of students, there is an if statement that i placed inside the corresponding setter. no matter what i do, if seems that the if statement just gets bypassed. not sure whats happening but ive been staring at this for like an 2 hours now and re written it 3 times. can someone explain what im doing wrong&gt;</p>
  <pre><code>class School {
      constructor(numberOfStudents){
  
        this._numberOfStudents = numberOfStudents;
      }
  
      get numberOfStudents(){ return this._numberOfStudents}
      set numberOfStudents(value){ 
        if(typeof value !== 'string'){
          this._numberOfStudents = value
        } else {
          console.log('Invalid input: numberOfStudents must be set to a Number.')
        }
      } 
    };
  
    const highSchool = new School('many');
    console.log(highSchool.numberOfStudents);
  </code></pre>
  <p>also to note; i belive the output should be this as the variable inputed is a 'string'</p>
  <pre><code>console.log('Invalid input: numberOfStudents must be set to a Number.')
  </code></pre>