CODEWITHSUNDEEP
typescript1.5arrow-functions
Hardipsinh Jadeja
Hardipsinh Jadeja

Reputation: 1297

what is proper method to create function with parameter and return value in single line?

I am new is ES6 and typescript. Trying to create function that accepts parameter as array and want to return its length as follows :

getSize = (friendsList : Friends[]) => friendsList.length ;

But it returns following error :

logger:17 TypeScript ';' expected. (TS1005)
logger:17 TypeScript Unexpected token. A constructor, method, accessor, or property was expected. (TS1068)
(index):20 Error: Error: TypeScript transpilation failed(…)

Upvotes: 3

Views: 87

Answers (1)

Anavar Bharmal
Anavar Bharmal

Reputation: 329

I think may be you want to need is as below:

let getSize = (friendsList: Array<number>) => friendsList.length ;
        console.log(getSize([1, 2, 3]));

So getSize is now a function and you can test it with above code.

I have tested above code.

Please test and let me know if it works for your scenario and any other help needed.

Upvotes: 2

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