rejectIfConditionAtInterval

The rejectIfConditionAtInterval function is a utility method provided by the web3.utils module that sets an interval that repeatedly executes a given condition function with a specified interval between each call. If the condition is met, the interval is cleared and a Promise that rejects with the returned value is returned.

The function takes two parameters:

• cond: An asynchronous function that takes an optional argument of type T and returns a value of type unknown. The function is executed repeatedly at the specified interval until the condition is met.
• interval: A positive number that represents the interval between each call of the cond function. The interval is measured in milliseconds.

• The first element is the interval ID, which can be used to clear the interval using the clearInterval function.
• The second element is a Promise that rejects with the value returned by the cond function if the condition is met. If the condition is not met, the Promise is never resolved or rejected.

Here's an example of how the rejectIfConditionAtInterval function can be used:

In this example, the rejectIfConditionAtInterval function is called with a condition function that checks the current user agent every second. If the user agent changes, the interval is cleared and a Promise that rejects with the new user agent is returned. The console.log statement logs the interval ID and the Promise to the console. After 5 seconds, the interval is cleared using the clearInterval function.