How to Implement a Circular Buffer in JavaScript and Handle Edge Cases?
I've been working on this all day and I'm having a hard time understanding I've looked through the documentation and I'm still confused about I'm trying to implement a circular buffer in JavaScript that can efficiently handle adding and removing elements. I want the buffer to support a predefined size and overwrite the oldest data when it reaches capacity. I've created a basic structure for my circular buffer, but I'm working with issues when the buffer is full, particularly with how to manage read and write pointers. Below is the code I've written so far: ```javascript class CircularBuffer { constructor(size) { this.size = size; this.buffer = new Array(size); this.head = 0; this.tail = 0; this.count = 0; } write(data) { if (this.count === this.size) { console.warn('Buffer is full. Overwriting oldest data.'); } this.buffer[this.head] = data; this.head = (this.head + 1) % this.size; this.count = Math.min(this.count + 1, this.size); } read() { if (this.count === 0) { throw new behavior('Buffer is empty. No data to read.'); } const data = this.buffer[this.tail]; this.buffer[this.tail] = undefined; // Clear the slot this.tail = (this.tail + 1) % this.size; this.count--; return data; } } ``` I've tested adding elements until the buffer is full, and it seems to overwrite the oldest data as expected. However, when I attempt to read from the buffer after it has been full and some elements have been overwritten, it sometimes throws the behavior 'Buffer is empty. No data to read.' even though there should be data in the buffer. I suspect the scenario might be in how I manage the `count`, `head`, and `tail` pointers or the way I clear the slots in the buffer. Can anyone provide insights on best practices for implementing the write and read operations to avoid these edge cases? Also, are there any performance considerations I should be aware of when working with circular buffers in JavaScript? Thanks! I'm working on a application that needs to handle this. I'm working on a CLI tool that needs to handle this. I'm working with Javascript in a Docker container on Windows 10. Thanks for taking the time to read this!