JSFiddle - React, Tailwind, and code Playground

JavaScript

var myfun = function (obj, fun) {
    var attr, i, name, val;
    attr = ['age', 'sex']; //attr存储筛选需要的属性
    for (i = attr.length; i--;) {
        name = attr[i];
        val = obj[name];
        val && fun(val);
    }
}
var obj = {
        'name': 'limin',
        'age': 15,
        'sex': 'male',
        'score': 98,
        'height': 175,
        'weight': 60
}
myfun(obj, function (val) {
    alert(val);
});