javascript - 动态构建二维数组Javascript

Question

我想动态构建一个二维数组，但遇到了麻烦。

答案和投票(单字符串数组)的长度始终相同；

我需要一个像这样的数组:

var data = 
        [['Answer', 'Votes'],
        [answers[0],  parseInt(votes[0])],
        [answers[1],  parseInt(votes[1])],
        [answers[2],  parseInt(votes[2])],
          ....
        ];

这不起作用；

var data[];
var arrayLength = answers.length;
for (var i = 0; i < arrayLength; i++) {
    data += [answers[i], votes[i]]; //**Maybe the only line that needs tweaking?
}

Answer 1

试试这个:

var data = [];

data[0] = ['answers','votes']

var arrayLength = answers.length;
for (var i = 0; i < arrayLength; i++) {
    data[i+1]= [answers[i], parseInt(votes[i])]; 
}

//check
console.table(data)