JavaScript-在for循环中获取值的总和

Question

I'm trying to sum all the variables, as many times as they appear in the loop, that is- for example if hitpoints appears 3 times(as in my code) sum -12 + -12 + -12; And then at the end I need a final result - a sum of all of the variable values as many times as they appear.

    function calculate(number) {

    var hitpoints = -12;
    var points1 = 1;
    var points3 = 5;
    var points5 = 10;
    var pointsx = 15;

    for (var i =1; i <= number; i++) {

      if ( i%10 ===0) {
        console.log( i + "-" + hitpoints);
      } else if ((i % 3 === 0) && (i% 5 ===0)) {
        console.log( i + "-" + pointsx);
      } else if (i %3 ===0) {
        console.log ( i + "-" + points3);
      } else if (i%5 ===0) {
        console.log( i + "-" + points5);
      } else {
        console.log( i + "-" + points1);
      }
    }
  }

  calculate(30);

Answer 1

I assume you want the sum of the points. Declare a variable sum and keep incrementing

 function calculate(number) { var hitpoints = -12; var points1 = 1; var points3 = 5; var points5 = 10; var pointsx = 15; var sum=0; for (var i =1; i <= number; i++) { if ( i%10 ===0) { sum += hitpoints; } else if ((i % 3 === 0) && (i% 5 ===0)) { sum += pointsx; } else if (i %3 ===0) { sum += points3; } else if(i%5 ===0) { sum += points5; } else { sum += points1; } } console.log(sum) } calculate(30);