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Infinite loop when using for loop with range and modifying the iterable in TypeScript

πŸ‘€ Views: 23 πŸ’¬ Answers: 1 πŸ“… Created: 2025-06-14
typescript loops array performance TypeScript

I need help solving Does anyone know how to I'm having trouble with I'm stuck on something that should probably be simple..... I'm working with an infinite loop in my TypeScript code while trying to iterate over an array with a for loop. I have a function that aims to remove certain elements from an array based on a condition, but instead of finishing execution, it keeps running indefinitely. Here’s a simplified version of my code: ```typescript function filterOutNumbers(arr: number[]): number[] { for (let i = 0; i < arr.length; i++) { if (arr[i] < 10) { arr.splice(i, 1); // I expect to continue checking the next element, but the loop seems to go wrong. } } return arr; } const result = filterOutNumbers([4, 12, 6, 15, 3, 20]); console.log(result); ``` When I run this code, I get a `RangeError: Maximum call stack size exceeded` behavior sometimes, and other times it simply doesn't finish executing. I suspect it might have something to do with modifying the `arr` while iterating over it. I’ve tried using a while loop instead, but I still face similar issues. Is there a best practice for removing elements from an array during iteration in TypeScript? Any insights or recommendations would be greatly appreciated! For context: I'm using Typescript on Linux. What's the best practice here? I'm using Typescript LTS in this project. Thanks for any help you can provide! For context: I'm using Typescript on Windows 10. Am I approaching this the right way?