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typescriptsetintervalclearinterval
Mustafa Yusuf
Mustafa Yusuf

Reputation: 160

How to use the same variable to store the return value of setInterval() and pass as parameter to clearInterval()?

I want to use the same variable to store the return value of setInterval() and then pass it as an argument to clearInterval() in TypeScript. However, setInterval() returns NodeJS.Timer while clearInterval() takes number.

This is how I want the code to look like:

itemCooldownInterval: NodeJS.Timer | undefined;

this.itemCooldownInterval = setInterval(this.tickCooldown, 1000);

This is how I want to clear the interval:

clearInterval(this.itemCooldownInterval);

Upvotes: 1

Views: 905

Answers (1)

hendra
hendra

Reputation: 2651

The return values of setInterval in the Browser and Node.js are different. On what platform are you developing?

On the browser the return type is number. You're IDE might say something different, then just use window.setInterval instead.

itemCooldownInterval: number | undefined;

// this will work
this.itemCooldownInterval = window.setInterval(this.tickCooldown, 1000);

Either way you can use ReturnType to infer the matching type:

itemCooldownInterval: ReturnType<typeof setInterval> | undefined;

Upvotes: 1

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