如何使用JavaScript从输入字符串创建数组？

Question

Currently I have a PHP page returning some values. The data is something like this:

08-30-2018, in
08-29-2018, out
08-28-2018, in
08-27-2018, in

How can I create a custom array in Javascript with the values above to be similar as this array below:

var system = [
   ['08-30-2018', 'in'],
   ['08-29-2018', 'out'],
   ['08-28-2018', 'in'],
   ['08-27-2018', 'in']
];

I have tried array.push , but it does not create an array like above. What should I do? Can you help me? Thank you!

Answer 1

You can use multi-dimensional arrays in JavaScript

 var system = []; var output = "08-30-2018, in\\n08-29-2018, out\\n08-28-2018, in\\n08-27-2018, in"; var items = output.split("\\n"); for(i=0; i<items.length; i++){ var data = items[i].split(","); var item = []; item.push(data[0].trim()); item.push(data[1].trim()); system.push(item); } console.log(system); 

Answer 2

You could also parse this kind of input using regular expressions:

const input = '08-30-2018, in\n08-29-2018, out\n08-28-2018, in\n08-27-2018, in';
const regex = /(\d{2}-\d{2}-\d{4}), (in|out)/g;

let system = [];
let match;
while ((match = regex.exec(input)) !== null) {
    system.push([match[1], match[2]]);
}