The condition will be false if a number is present, even if it is zero

I am facing an issue with a class containing an optional field called startDateHour:

export class Test {
  startDateHour?: number;

  // more fields, constructor etc.
}

I need to perform an action only if the startDateHour exists:

if (test.startDateHour) {
  //do something
}

The problem arises when startDateHour is set to 0. Even though it exists and I want to run the code, the check if (startDateHour) returns false in this scenario.

One possible solution could be:

if (test.startDateHour || test.startDateHour === 0) {
  // do something
}

Is there a way to improve this check so that it handles both scenarios effectively?

Answer №2

Give this a shot:

if(!isNaN(value.startDateHour)) {
}

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