Question

我在一个对象中有两个键。我正在检查以下三种情况

如果statusUrl值具有某个值，则成功
如果statusUrl值为“”，则errorUrl值不能为“”
如果statusUrl和errorUrl都为空，则失败

我正在使用下面的工作代码，但想知道是否有更好的方法以更简单的方式执行此操作。

var obj = {
    statusUrl: "",
    errorUrl: ""
};
function validate(key) {
    if (!obj.hasOwnProperty(key) || obj[key] === "") {
        return 1;
    }
}
var flag = validate("statusUrl");
if (flag) {
    var result = validate("errorUrl") ? "failure" : "success";
}
console.log(result)

jsfiddle

Answer 1

您可以像这样简化代码

@Before
public void init() {
    final Matchday matchday = matchdayRepository.save(new Matchday(1));
    final Club club1 = clubRepository.save(new Club("Klub1"));
    final Club club2 = clubRepository.save(new Club("Klub2"));
    final Match match = matchRepository.save(new Match(matchday, club1, club2));
    final Player player = new Player(1, "Jan", "Kowalski", club1);
    player.addPlayerStatistics(new PlayerStatistics(matchday, player, match));
    playerRepository.save(player);
}

Answer 2

总结一下您的要求，statusUrl或errorUrl值意味着成功，否则意味着失败。 <怎么样

fnDiary = [ mfilename '.out.txt' ]
system(['rm -f ' fnDiary])
diary off; diary fnDiary

https://jsfiddle.net/j09Lynma/

Answer 3

var obj = {
  statusUrl: "",
  errorUrl: ""
};

var result = "failure";

if (obj.statusUrl) {
  result = 'success';
} else {
  if (obj.errorUrl) {
    result = 'success';
  }
}

console.log(result);

Answer 4

这是一个更简单的＆＃34;方式

var obj = {
    statusUrl: "",
    errorUrl: ""
  },
  result = validate(obj);

console.log(result);

function validate(obj){
  if (obj.statusUrl !== "") { 
    //1. if statusUrl value is having some value, then success
    return "success" 
  } else if(obj.errorUrl !== "") { 
    //2. if statusUrl value is "", errorUrl value must not be ""
    return "success" 
  } else { 
    //3. if both statusUrl and errorUrl are empty, then failure
    return "failure" 
  }
}

检查truthy/falsey值时要小心。

var a = "0",
    b = 0;

console.log(!a); //false
console.log(!b); //true

Answer 5

试试这个：

var obj = {
  statusUrl: "",
  errorUrl: ""
};

function validate(obj) {
    if (obj.statusUrl != "" || (obj.statusUrl != "" && obj.errorUrl != "") || (obj.statusUrl == "" && obj.errorUrl != "")) {
        return 1;
    }
}

var output = validate(obj) ? "success" : "failure";

console.log(output);

Answer 6

使用它：

var result=(obj.statusUrl && obj.statusUrl!=""?"success":(obj.errorUrl && obj.errorUrl!=""?"success":"failure"))

console.log(result)

验证对象内的空值

6 个答案: