使用循環訪問javascript對象屬性

Question

如何訪問對象屬性使用for循環，我在說這個循環for (var i =0;i <= obj.length;i++)而不是for..in循環。我想用document.write()來顯示它。沒有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

您能夠與Object.keys()一起使用for循環。

注意：由於眯提到的，它並不能保證正確的順序。

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>`); 
 
}