src/utils/CircularArray.ts

   1 import Constants from './Constants';
   2
   3 export default class CircularArray<T> extends Array<T> {
   4   public size: number;
   5
   6   constructor(size: number = Constants.MAXIMUM_MEASUREMENTS_NUMBER) {
   7     super();
   8     this.size = size;
   9   }
  10
  11   push(...items: T[]): number {
  12     while (this.length > this.size) {
  13       this.shift();
  14     }
  15     return super.push(...items);
  16   }
  17
  18   unshift(...items: T[]): number {
  19     while (this.length > this.size) {
  20       this.pop();
  21     }
  22     return super.unshift(...items);
  23   }
  24 }