Just a simple Array Cache that I finally won't use by now... 😃

SmallCahce.js

export class smallCache extends Array {                                                                                                                                              
    constructor(maxlength = 10) {                                                                                                                                             
        super();                                                                                                                                                              
        Object.defineProperty(this, "maxlength", {                                                                                                                            
            value: maxlength,                                                                                                                                                 
            enumerable: false,                                                                                                                                                        });                                                                                                                                                                   
    };                                                                                                                                                                        
    push(...args) {                                                                                                                                                           
        super.push(...args);                                                                                                                                                  
        const excess = Math.max(0, this.length - this.maxlength);                                                                                                             
        for (let i=excess; i>0; i--) this.shift();                                                                                                                            
        return this.length;                                                                                                                                                   
    };                                                                                                                                                                        
    unshift(...args) {                                                                                                                                                        
        super.unshift(...args);                                                                                                                                               
        if (this.length > this.maxlength) this.length = this.maxlength;                                                                                                       
        return this.length;                                                                                                                                                   
    };                                                                                                                                                                        
};