Question

我从javascript函数返回，如下所示：

return{"success": true, "message": "Password changed."};

如何在调用此功能时检索这些功能？

Answer 1

您正在返回一个对象，您可以将其保存在变量中，然后可以访问对象属性。

//function definition
function fun1(){
return{"success": true, "message": "Password changed."};
}

//function calling
var res1 = fun1();

//using the result returned by function call
if(res1.success)//true
{
    alert(res1.message);//"Password changed.
}

Answer 2

这只是一个对象。只需访问这些属性。

var obj = foo();
for(var key in obj)
    console.log(key, " = ", obj[key]);

您也可以仅使用obj.success和obj.message来返回后续值。

Answer 3

那不是“多重回报”;那是返回一个具有属性的对象。所以调用代码接收一个对象，然后使用它的属性：

var a = theFunction();
console.log(a.success);
console.log(a.message);

Answer 4

function functionReturningObject(){
   return{"success": true, "message": "Password changed."};
}

//  use a temporary variable!!! this is a valid syntax but will execute twice
//     success = functionReturningObject().success
//     message = functionReturningObject().message
var map = functionReturningObject();

// when you know it contents you refer it directly
console.log(map.success)
console.log(map.message)

// when you do not know it contents, you can "explore" it
Object.keys(map).forEach(function(key){console.log(key);console.log(map[key]);})

Answer 5

喜欢这个吗？

function fn(){
  return{"success": true, "message": "Password changed."};
}
fn().success;//true
fn().message;//Password changed.

如何在javascript中处理多个返回

5 个答案: