Encountering the following error: Exceeded maximum call stack size limit

Currently, I am attempting to tackle a specific problem on LeetCode. This particular challenge involves calculating the power of x.

However, upon executing my solution, an error message is displayed:

RangeError: Maximum call stack size exceeded

Here's the snippet of my code:

function myPow(base, exponent){
    if(exponent === 0) {
        return 1;
    } else if(exponent < 0){
        return (myPow(base,exponent + 1)/base);
    } else {
        return base * myPow(base,exponent-1);
    }
}

myPow(0.00001, 2147483647) // this specific test case seems to be causing the failure

I have since made adjustments based on the recommendation of Luca Kiebel:

function myPow(base, exponent){
    if(exponent === 0) {
        return 1;
    } else if(exponent < 0){
        return (myPow(base,exponent + 1)/base);
    } else {
        return base ** myPow(base,exponent-1);
    }
}

If anyone could kindly point out where I might be going wrong, I would greatly appreciate it.

Answer №1

By repeatedly calling the function within itself, the JS Engine is triggered to detect an issue and terminate it in order to prevent excessive CPU/RAM usage.

To address this, consider using Math.pow or a basic for loop instead of recursion.

For more information on how many times a function can be called inside another one, refer to Browser Javascript Stack size limit

Answer №2

The reason you are encountering that error is due to your function repeatedly calling itself, leading to a stack overflow.

Consider utilizing the Math.pow() function in order to accomplish your desired outcome.

Answer №3

Using recursion may not be the best approach if you want to create your own function for raising a number to a power, but achieving this task with a simple loop is quite feasible.

function customPower(base, exponent){
  var result = 1;
  for(var i=0;i<Math.abs(exponent);i++)
    result = exponent<0 ? result/base : result * base
  return result
}

console.log(customPower(2, 10), Math.pow(2,10), 2 ** 10)
console.log(customPower(2, -2), Math.pow(2,-2), 2 ** -2)
//console.log(customPower(0.00001, 2147483647), Math.pow(0.00001,2147483647), 0.00001 ** 2147483647)

However, it's evident from the examples above that you're basically duplicating the functionality of Math.pow or the ** operator.

Answer №4

Encountered the identical issue on Leetcode within the Recursion category and faced the same error message. My suspicion is that this problem is designed to be approached through tail recursion, but due to Javascript not having built-in support for tail recursion, this issue arises.

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