TypeScript - 1 minute countdown timer

In this article, we would like to show you how to create a one-minute countdown timer in TypeScript.

Practical example

In the example below, we use setTimeout() method to execute a function once the timer expires.

As setTimeout() arguments we pass:

1. makeIteration() function that prints seconds and clears the console from the previous iteration,
2. 1000 milliseconds to make setTimeout() count every second. 

let seconds: number = 60;

const makeIteration = (): void => {
    console.clear();
    if (seconds > 0) {
        console.log(seconds);
        setTimeout(makeIteration, 1000); // 1 second waiting
    }
    seconds -= 1;
};

setTimeout(makeIteration, 1000); // 1 second waiting

See also

1. JavaScript - 1 minute countdown timer

2. Dirask Snippets - js for loop with settimeout() example

References

1. setTimeout() - Web APIs | MDN