TypeScript对象作为C＃中的字典类型 [英] TypeScript Objects as Dictionary types as in C#

问题描述

我有一些使用对象作为字典的JavaScript代码;例如个人对象将保留从电子邮件地址中扣除的一些个人资料。

  var people = {< email> ; ：< some personal data>}; 
 
添加> people [< email>] =< data> ;; 
获得> var data = people [< email>]; 
删除> 删除人[< email>]; 
  

可以在Typescript中描述这个吗？或者我必须使用数组？

解决方案

当然：

  var map：{[email：string]：Customer; } = {}; 
 map ['[e-mail]'] = new Customer（）; // OK 
 map [14] = new Customer（）; //不行，14不是字符串
 map ['[e-mail]'] ='x'; //不行，'x'不是一个客户
  

你也可以做一个界面，如果你不想每次都输入整个类型的注释：

  interface StringToCustomerMap {
 [email：string]：顾客; 
} 
 
 var map：StringToCustomerMap = {}; 
 //等于上面的第一行
  

I have some JavaScript code that uses objects as dictionaries; for example a 'person' object will hold a some personal details keyed off the email address.

var people = {<email> : <some personal data'>};

adding   > "people[<email>] = <data>;" 
getting  > "var data = people[<email>];" 
deleting > "delete people[<email>];"

Is it possible to describe this in Typescript? or do I have to use an Array?

解决方案

Sure:

var map: { [email: string]: Customer; } = { };
map['[e-mail]'] = new Customer(); // OK
map[14] = new Customer(); // Not OK, 14 is not a string
map['[e-mail]'] = 'x'; // Not OK, 'x' is not a customer

You can also make an interface if you don't want to type that whole type annotation out every time:

interface StringToCustomerMap {
    [email: string]: Customer;
}

var map: StringToCustomerMap = { };
// Equivalent to first line of above

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