• 根据对象key去重数组中重复的对象

//将对象元素转换成字符串以作比较
function obj2key(obj, keys) {
    var n = keys.length,
        key = [];
    while (n--) {
        key.push(obj[keys[n]]);
    }
    return key.join('|');
}
//去重操作
export let uniqeByKeys = (array, keys) => {
    var arr = [];
    var hash = {};
    for (var i = 0, j = array.length; i < j; i++) {
        var k = obj2key(array[i], keys);
        if (!(k in hash)) {
            hash[k] = true;
            arr.push(array[i]);
        }
    }
    return arr;
}

//使用
uniqeByKeys(compere, ['nickName']);