如何推送打字稿文件中的字符串？

Question

我有一個類叫做

export class Channel { 
    name: string 
} 

我有一個對象items: Channel[];

我有一個數組test[] = { "one", "two", three" }

如何推動這些文本項對象。

Answer 1

通道類只用於類型檢查，據我所知。

Channel.ts

export class Channel { 
    name: string; 
} 

Items.ts

import { Channel } from './Channel'; 

const items: Channel[] = []; // initialize to empty array 
const test: string[] = ["one", "two", "three"]; 

// because 'test' is an array of strings we need to convert each item 
// to be a Channel 

const channels = test.map(t => { return { name: t } as Channel }); // the 'as Channel' part is only for type checking 

// assign 'channels' to 'test' 
test.push(...channels); 

這裏有一個工作示例：http://codepen.io/kenhowardpdx/pen/dNLeoJ?editors=0012