Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
1.4k views
in Technique[技术] by (71.8m points)

typescript - How to get type of array items?

If I have a type type foo = Array<{ name: string; test: number; }>, would it be possible to get the type of the values within the array, in this case, the interface. I know there is keyof to get the keys, is there something similar for values?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

If you're looking to how to extract { name: string; test: number; } type, you can simply create alias to "item at index":

type Foo = Array<{ name: string; test: number; }>;
type FooItem = Foo[0];

or

type FooItem = Foo[number];

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...