javascript从for循环创建数组

Question

我将年份范围存储为两个变量.我想创建一个范围内的年份数组.

就像是:

var yearStart = 2000;
var yearEnd = 2040;

var arr = [];

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

     var obj = {
        ... 
     };

      arr.push(obj);
}

我应该把什么放在obj里面？

我想生成的数组如下:

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

Answer 1

如果你可以失去yearStart值,甚至更短:

var yearStart = 2000;
var yearEnd = 2040;

var arr = [];

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

更新:如果你可以使用ES6语法,你可以按照这里提出的方式进行:

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

Answer 2

你需要推动 i

var yearStart = 2000;
var yearEnd = 2040;

var arr = [];

for (var i = yearStart; i < yearEnd+1; i++) {
    arr.push(i);
}

然后,您的结果数组将是:

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

希望这可以帮助

Answer 3

var yearStart = 2000;
var yearEnd = 2040;

var arr = [];

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

     arr.push(i);
}