I am fresher to Typescript, while learning from the site, I got to know that yield can be used for Asynchronous Iteration using for-await-of. The below is the function in Javascript. Please help me how to use in Typescript classes. When I write the below code, I get the error as TS1163: A 'yield' expression is only allowed in a generator body. I want to write the below code in Typescript class.
https://blog.bitsrc.io/keep-your-promises-in-typescript-using-async-await-7bdc57041308.
function* numbers() {
let index = 1;
while(true) {
yield index;
index = index + 1;
if (index > 10) {
break;
}
}
}
function gilad() {
for (const num of numbers()) {
console.log(num);
}
}
gilad();
I also tried to write in a Typescript class, but it gives compilation issue.
public getValues(): number {
let index = 1;
while(true) {
yield index;
index = index + 1;
if (index > 10) {
break;
}
}
}
You need to put the token *
in front of your method:
class X {
public *getValues() { // you can put the return type Generator<number>, but it is ot necessary as ts will infer
let index = 1;
while(true) {
yield index;
index = index + 1;
if (index > 10) {
break;
}
}
}
}