如何在JavaScript中将数组中的所有元素转换为整数？ [英] How to convert all elements in an array to integer in JavaScript?

问题描述

经过一些操作后我得到了一个数组。我需要将所有数组值转换为整数。

I am getting an array after some manipulation. I need to convert all array values as integers.

我的示例代码

var result_string = 'a,b,c,d|1,2,3,4';
result = result_string.split("|");
alpha = result[0];
count = result[1];
// console.log(alpha);
// console.log(count);
count_array = count.split(",");

count_array 现在包含 1,2,3,4 但我需要这些值为整数。

count_array now contains 1,2,3,4 but I need these value to be in integers.

我用过 parseInt （count_array）; ，但它失败了。 JS将此数组中的每个值都视为字符串。

I had used parseInt(count_array);, but it fails. JS considers each value in this array as string.

推荐答案

您需要遍历并解析/转换数组中的元素，像这样：

You need to loop through and parse/convert the elements in your array, like this:

var result_string = 'a,b,c,d|1,2,3,4',
    result = result_string.split("|"),
    alpha = result[0],
    count = result[1],
    count_array = count.split(",");
for(var i=0; i<count_array.length;i++) count_array[i] = +count_array[i];
//now count_array contains numbers

你可以在这里测试一下。如果 + 正在投掷，请将其视为：

You can test it out here. If the +, is throwing, think of it as:

for(var i=0; i<count_array.length;i++) count_array[i] = parseInt(count_array[i], 10);

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