SOURCE

function HashMap(){

/**大小 */
var size = 0;
/**初始数组 */
var table=[];
/**初始数组长度 */
var length = 16;
/**扩容阈值 */
var threshold = 0.75*length;

/**增加链表*/
this.addEntry = function(key,vaule,index){

        var e = table[index];
        table[index]={key:key,vaule:vaule,next:e}
        if(size++>threshold)
        {
            length*=2;
            threshold=length*0.75;
        }

}






    
}