javascript从for循环创建数组 [英] javascript create array from for loop

问题描述

我将年份范围存储到两个变量中.我想创建该范围内年份的数组.

I have a years range stored into two variables. I want to create an array of the years in the range.

类似:

var yearStart = 2000;
var yearEnd = 2040;

var arr = [];

for (var i = yearStart; i < yearEnd; i++) {

     var obj = {
        ... 
     };

      arr.push(obj);
}

我应该在 obj 里面放什么?

What should I put inside the obj ?

我想生成的数组如下:

arr = [2000, 2001, 2003, ... 2039, 2040]

推荐答案

如果你可以失去 yearStart 值甚至更短:

even shorter if you can lose the yearStart value:

var yearStart = 2000;
var yearEnd = 2040;

var arr = [];

while(yearStart < yearEnd+1){
  arr.push(yearStart++);
}

更新:如果您可以使用 ES6 语法，则可以按照建议的方式进行操作 这里:

UPDATE: If you can use the ES6 syntax you can do it the way proposed here:

let yearStart = 2000;
let yearEnd = 2040;
let years = Array(yearEnd-yearStart+1)
    .fill()
    .map(() => yearStart++);

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