Question

当前的数字字符串如下：

["151,47,47,200,42,130,39,39,152,144,84,66,137,39,83,155,40,49,109,178,91,196,99,190,36,38,169,63,31,60,83,61,79,156,137,64,169,173,40,39,87,188,170,154,188,152,71,106,76,105,184,122,60,71,134,32,39,48,54,77,47,168,134,60,59,161,95,167,108,115,74,132,143,197,99,193,96,174,182,61,48,129,59,190,76,194,197,54,61,72,145,193,70,192,106,164,52,179,179,53"]

请注意，两端都有双引号，我需要摆脱它。

目标格式为：

[151,47,47,200,42,130,39,39,152,144,84,66,137,39,83,155,40,49,109,178,91,196,99,190,36,38,169,63,31,60]....

我尝试过使用rStrip并替换，但这不起作用。有任何想法吗？

谢谢！

Answer 1

拆分，迭代和施放：

var a = ["151,179,179,53"];
var values = a[0].split(',').map(Number);
console.log(values);

Answer 2

var strings = data[0].split(','); // array of strings containing numbers
var numbers = [];

for (var i = 0; i < strings.length; i++) {
    numbers[i] = parseInt(strings[i],10);
}

编辑：这正是@ J148在评论中建议的内容

Answer 3

您可以使用.split（）然后遍历数组，将元素解析为整数。

DEMO

HTML：

<div id='show'></div>

JS：

var stringArray = "151,47,47,200,42,130,39,39,152,144,84,66,137,39,83,155,40,49,109,178,91,196,99,190,36,38,169,63,31,60,83,61,79,156,137,64,169,173,40,39,87,188,170,154,188,152,71,106,76,105,184,122,60,71,134,32,39,48,54,77,47,168,134,60,59,161,95,167,108,115,74,132,143,197,99,193,96,174,182,61,48,129,59,190,76,194,197,54,61,72,145,193,70,192,106,164,52,179,179,53";
var numArray = stringArray.split(',');
for (var n=0;n<numArray.length;n++) {
    numArray[n] = parseInt(numArray[n],10);
}
//add 1 to each to prove they are ints
for (var n=0;n<numArray.length;n++) {
    document.getElementById('show').innerHTML += numArray[n]+'+1 = '+(numArray[n]+1)+'<br/>';
}

Answer 4

你几乎已经得到了你所需要的东西。这意味着转换和解析比转换更容易。

一种非常简单快速的方式，无需循环：

JSON.parse("["+["151,47,47,200,42,130,39,39,152,144,84,66,137,39,83,155,40,49,109,178,91,196,99,190,36,38,169,63,31,60,83,61,79,156,137,64,169,173,40,39,87,188,170,154,188,152,71,106,76,105,184,122,60,71,134,32,39,48,54,77,47,168,134,60,59,161,95,167,108,115,74,132,143,197,99,193,96,174,182,61,48,129,59,190,76,194,197,54,61,72,145,193,70,192,106,164,52,179,179,53"]+"]")

将一个巨大的“数字”字符串转换为数字，用逗号分隔成数字数组（不是字符串）

4 个答案: