题解 | #数组中只出现一次的两个数字#

/**
 * 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 nums int整型一维数组
 * @return int整型一维数组
 */
function FindNumsAppearOnce(nums) {
    // write code here
    if (nums.length < 2) return null;
    const record = {};
    for (let n of nums) {
        if(record[n]){record[n]++}
        else{record[n] = 1}
    }
    let res = []
    for(i in record){
        if(record[i]>=2){continue}
        else{res.push(i)}
    }   
    res = res.sort((a,b)=>{a-b})
    return res
}
module.exports = {
    FindNumsAppearOnce: FindNumsAppearOnce,
};