Iterate through the value using Angular 2

I have been experimenting with looping in Angular 2, using the following code snippet:

if (true) {
    for ( var i = 0; i < 4; i++ ){
        console.log("the value of i is : " + i); 
    }
} else {
    console.log("in else part") ; 
}

However, when I check the console, I notice that the value of i always remains at 0, indicating that this may not be the correct way to loop in Angular 2.

I then attempted the following approach:

for ( let i = 0; i < 4; i++ ){
    console.log("value : " + i) ; 
}

Surprisingly, even with this change, the result remains consistent.

Could someone guide me on the right way to loop or iterate in Angular 2?

Answer №1

Ensure the i variable is declared before the start of the for loop.

let i: number;
for (i = 0; i < 5; i++){
  console.log("number : " + i) ; 
}

Answer №2

When utilizing TypeScript, it is essential to declare the type of variables like 'i'. For example:

let i: number;
for (i = 0; i < 4; i++) {
  console.log("value: " + i);
}

That's all for now.

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