空数组和数组中只有数字的解决方案

const arrayOne=新数组（10）；console.log（arrayOne）；const arrayTwo=[…数组（10）.keys（）]；console.log（arrayTwo）；var arrayThree=Array.from（Array（10）.keys（））；console.log（arrayThree）；const arrayStartWithOne=Array.from（Array（10）.keys（），item=>item+1）；console.log（arrayStartWithOne）

试试看：

var foo = [1, 2, 3, 4, 5];

如果您正在使用CoffeeScript，可以通过执行以下操作创建范围：

var foo = [1..5]; 

否则，如果您使用的是普通JavaScript，那么如果要将数组初始化为可变长度，则必须使用循环。

不支持在ES6解决方案中创建阵列

js不适用于100阵列

1.焊盘启动

// string arr
const arr = [...``.padStart(100, ` `)].map((item, i) => i + 1 + ``);

// (100) ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "40", "41", "42", "43", "44", "45", "46", "47", "48", "49", "50", "51", "52", "53", "54", "55", "56", "57", "58", "59", "60", "61", "62", "63", "64", "65", "66", "67", "68", "69", "70", "71", "72", "73", "74", "75", "76", "77", "78", "79", "80", "81", "82", "83", "84", "85", "86", "87", "88", "89", "90", "91", "92", "93", "94", "95", "96", "97", "98", "99", "100"]


// number arr
const arr = [...``.padStart(100, ` `)].map((item, i) => i + 1);

// (100) [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100]

2.类型化阵列

Uint8阵列

// number arr
const arr = new Uint8Array(100).map((item, i) => i + 1);

// Uint8Array(100) [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100]

// string arr
const arr = [...new Uint8Array(100).map((item, i) => i + 1)].map((item, i) => i + 1 + ``);

// (100) ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "40", "41", "42", "43", "44", "45", "46", "47", "48", "49", "50", "51", "52", "53", "54", "55", "56", "57", "58", "59", "60", "61", "62", "63", "64", "65", "66", "67", "68", "69", "70", "71", "72", "73", "74", "75", "76", "77", "78", "79", "80", "81", "82", "83", "84", "85", "86", "87", "88", "89", "90", "91", "92", "93", "94", "95", "96", "97", "98", "99", "100"]

你可以这样做：

var arr=数组.from（数组（10）.keys（））arr.shift（）控制台日志（arr）

感谢@NikoRuotsalainen的回答。我在我的实用程序中写道：

const range = ({from = 0, to, step = 1, length = Math.ceil((to - from) / step)}) => 
  Array.from({length}, (_, i) => from + i * step)

示例：常量范围=（｛from=0，to，step=1，length=Math.ceil（（to-from）/step）｝）=>Array.from（｛length｝，（_，i）=>from+i*step）控制台日志(范围（｛长度：5｝），//[0，1，2，3，4]范围（｛到：5｝），//[0，1，2，3，4]范围（｛从：2，到：5｝），//[2，3，4]（包括“从”，不包括“到”）范围（｛从：2，长度：4｝），//[2，3，4，5]范围（｛从：1到：5，步骤：2｝），//[1，3]范围（｛从：1到：6，步骤：2｝），//[1，3，5])

以下函数返回一个由数字填充的数组：

var createArrayOfNumbers = function (n) {
    return Array.apply(null, new Array(n)).map(function (empty, index) {
        return index;
    });
};

请注意，使用数组构造函数创建的数组由孔组成，因此不能使用map等数组函数遍历。因此使用Array.apply函数。