Iterating over a specified number of times using the for..of loop in Typescript

In my quest to find a way to loop through an array a specific number of times using the for..of function in TypeScript, I have come across numerous explanations for JavaScript, but none that directly address my question. Here is an 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

I am specifically interested in limiting this loop to only 3 iterations and implementing it within the for...of construct in TypeScript.

My understanding of TypeScript is still developing, and I appreciate any guidance on this topic.

Answer №1

If you need to iterate through the first few elements of a JavaScript array, you can achieve this by utilizing a traditional for loop and specifying the loop counter limit as 3:

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

When it comes to TypeScript, there isn't much difference in this scenario except that TypeScript allows you to explicitly declare the loop counter variable as a number type.

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

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