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To modify the value in the setInterval function, you need to assign the setInterval function to a variable and then use the clearInterval method to clear the previous interval. Once the previous interval is cleared, you can assign a new value to the setInterval function by calling it with the updated value. Here is an example:
// Assign setInterval function to a variable
const intervalId = setInterval(doSomething, 1000);
// Clear previous interval
clearInterval(intervalId);
// Assign new value to setInterval function
intervalId = setInterval(doSomething, 2000);