text: // This is a tes JS file
  
  function sum(a,b) {
      return a + b;
  }
  
  function sum(a,b) {
      return a + b;
  }
  
  function minus(a,b) {
      return a - b;
  }
  
  function multiply(a,b) {
      return a * b;
      if(a==1) return b;
  }
  
  function mod(a,b) {
      return a % b;
  }