how to sum values of arrays in the same position-CodePudding

I have this line of code, how could I add the // "0[37][16]" to total 53 for example?

updateTotalMedidas() {
    this.ɵcart.medidaTotal = 0;
    for (const item of this.ɵcart.item) {
      let row_cm = (item.medidas[0] * item.medidas[1] * item.medidas[2]) * item.quantidade; // (3) [84, 40, 15] and (3) [30, 18, 8]
      let totalCmCubico = row_cm  // 50400 and 4320
      let raiz_cubica =  Math.round(Math.cbrt(totalCmCubico))  // 37 and  16
      this.ɵcart.medidaTotal  = JSON.stringify([raiz_cubica]); // "0[37][16]"

    }
  }

if I remove the "[]" from this.ɵcart.medidaTotal it becomes 3716, so I put the [], but I don't understand why it stays in that format

CodePudding user response：

This happens because you put everything inside JSON.stringify this converts objects into JSON strings. So in your current code mediaTotal will be first 0 then "37" and at last "3716". No need for that in your code.

You can just do this, because raiz_cubica is a number.

this.ɵcart.medidaTotal  = raiz_cubica;