如何使数组中的每个元素成为另一个数组？

Question

I have some text that I receive from the user: 我收到了一些来自用户的文本：

var text = ['Hello', 'World']; // this is the product of string.split(',')

I need to convert it into an array like this one: 我需要将其转换成这样的数组：

var argument = [['Hello'], ['World']];

I need the input in this format so I can send multiple values to the db. 我需要这种格式的输入，以便可以将多个值发送到数据库。

How can I do this elegantly ? 我该如何优雅地做到这一点？

Answer 1

I can't think of anything more elegant for this than map : 我想不到有什么比map更优雅的了：

Eg: 例如：

var argument = originalString.split(",").map(function(entry) {
    return [entry];
});

Or if you've enabled ES6 on your NodeJS installation: 或者，如果您已在NodeJS安装上启用了ES6：

var argument = originalString.split(",").map((entry) => [entry]);