如何在JavaScript中将JSON等值从“ 01”转换为月份名称

Question

在所有月份中，我们如何将“ 01”月份转换为一月，并将“ 02”月份转换为二月。

示例我从JSON获取值为“ 01”，但我需要将该值打印为“一月”和“ 02”二月。 您能帮我们用javascript做些什么吗？

Answer 1

alert(["January", "February", "March", "April", "May",
 "June", "July", "August", "September", "October",
 "November", "December"][myNumberFromJSON - 1]);

Answer 2

function getMonthFromNumber(num){
  var months = "January February March April May June July August September October  November December";
  num = Math.abs(parseInt(num, 10));  
  if(isNaN(num)){
    throw new Error(num + ' is not a valid number');
  } else if (num > 12){
    throw new Error('No month matches ' + num + '. Value must be less than 13.');
  }
  return  months.split(' ')[num - 1];
}

alert(getMonthFromNumber(10));