使用循环访问javascript对象属性

Question

如何访问对象属性使用for循环，我在说这个循环for (var i =0;i <= obj.length;i++)而不是for..in循环。我想用document.write()来显示它。没有jquery，只有javascript。

var obj = { 
     id: 1, 
     description: "This space is for description", 
     severity: "This is severity", 
     assignedTo: "Name of the assigned person", 
     status: "Issue Status " 
    } 

Answer 1

您能够与Object.keys()一起使用for循环。

注意：由于眯提到的，它并不能保证正确的顺序。

var obj = { 
 
    id: 1, 
 
    description: "This space is for description", 
 
    severity: "This is severity", 
 
    assignedTo: "Name of the assigned person", 
 
    status: "Issue Status " 
 
}, elems = Object.keys(obj); 
 

 
for (var i = 0; i < elems.length; i++) { 
 
    document.write(`Key: ${elems[i]}, Value: ${obj[elems[i]]}<br>`); 
 
}