题解 | #数组中出现次数超过一半的数字#

/**
 * 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
 *
 * 
 * @param numbers int整型一维数组 
 * @return int整型
 */
function MoreThanHalfNum_Solution( numbers ) {
    // write code here
    let map = new Map()
    numbers.forEach((el)=>{
        map.has(el)?map.set(el,map.get(el)+1):map.set(el,1)
    })
    let  moreThanHalfNum;
    map.forEach((value,key)=>{
        if(value>(numbers.length)/2){
            moreThanHalfNum = key
        }
    })
    return moreThanHalfNum

}
module.exports = {
    MoreThanHalfNum_Solution : MoreThanHalfNum_Solution
};