syncpack/dist/lib/ring-buffer.js

Consistent dependency versions in large JavaScript Monorepos

/**
 * An Array with a maximum size which, once reached, will replace the oldest
 * item when a new one is added.
 */
export class RingBuffer extends Array {
    cursor;
    fixedLength;
    constructor(fixedLength) {
        super(fixedLength);
        this.cursor = 0;
        this.fixedLength = fixedLength;
    }
    push(...values) {
        values.forEach(value => {
            this[this.cursor++] = value;
            this.cursor %= this.length;
        });
        return this.length;
    }
}