Typescript for..of loop x numbers of times

Question

I know there a lot of answers about looping x amount of times on javascript but i'm finding if there any way to loop x amount of times in a typescript for..of loop function on an array, until now i haven't able to look up any answer involving the for..of function . Example:

const someArray = [1, 2, 3, 4, 5, 6, 7];

for(let i of someArray) {
  console.log(i);
}

//loop result are from 1 to 7
//i would like the loop to run 3 times so expected result to be 1, 2, 3

What i'm looking for is to run the loops only 3 times and apply to the for...of function of typescript

I'm still a novice at typescript

What does this have to do with typescript?

Nicholas Tower
– Nicholas Tower

2019-12-13 04:57:51 +00:00
Commented Dec 13, 2019 at 4:57 — Nicholas Tower
– Nicholas Tower, Commented Dec 13, 2019 at 4:57

Nicholas Tower · Accepted Answer · 2019-12-13 05:04:13Z

3

To loop through the first elements of an array in javascript, use a standard for loop, and end the loop counter at 3:

for (let i = 0; i < 3; i++) {
   console.log(someArray[i])
}

Typescript does not change anything here, except give you the option to be explicit that the loop counter is a number.

for (let i: number = 0; i < 3; i++) {
   console.log(someArray[i])
}

answered Dec 13, 2019 at 5:04

Nicholas Tower

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