JSFiddle - React, Tailwind, and code Playground

by ysuper

HTML

java script 陣列 轉矩陣

JavaScript

function transpose(arr) {
  return Object.keys(arr[0]).map(function (c) {
    return arr.map(function (r) {
      return r[c];
    });
  });
}

var a = [["A", "1.500", "1.65 ", "1.350", "Calliper"],
     ["B", "28.000", "28.15 ", "27.850", "Calliper"],
     ["C", "8.700", "8.85 ", "8.550", "Calliper"]]

var b = transpose(a)

console.log(a);
console.log(b);

var total =10.0
console.log(total);
(total).toFixed(2);
console.log((total).toFixed(3));