underscore.js - 将分隔的字符串拆分为对象

Question

我发现自己经常使用以下模式

var line = "12|John Doe"
var pieces = line.split("|")
var user = {
   id : pieces[0],
   name : pieces[1]
} 
console.log(user)

您将如何使用下划线使这更简洁优雅？

Answer 1

使用下划线:

var user = _.object(['id', 'name'], line.split('|'));

console.log(user); // Object {id: "12", name: "John Doe"}

上面的代码解释:

var keys = ['id', 'name'];         // plain array of user field names
var values = line.split('|');      // splits line string to array of values
var user = _.object(keys, values); // joins both arrays as an object

阅读更多关于 underscore's _.object here .

使用 Lodash:

Lodash 等效方法是 _.zipObject .

var user = _.zipObject(['id', 'name'], line.split('|'));