JS/jQuery 遍历对象属性

@yangweijie 2017-07-10 23:08:00发表于 yangweijie/note blogjavascript

Javascript For/In 循环: 循环遍历对象的属性

var person={fname:"John",lname:"Doe",age:25};  

for (x in person)  {  
   txt=txt + person[x];  
}

~~~ js

结果:JohnDoe25

## jQuery jQuery.each() 遍历对象属性

~~~ js
var arr = ["one", "two", "three", "four", "five"];  
var obj = { one: 1, two: 2, three: 3, four: 4, five: 5 };

遍历数组

var text = "Array ";  
jQuery.each(arr, function(i, val) {  
    text = text + " #Index:" + i + ":" + val;  
});  

console.log(text);

//Array #Index:0:one #Index:1:two #Index:2:three #Index:3:four #Index:4:five

遍历对象

text = "Object ";  
jQuery.each(obj, function(i, val) {  
    text = text + "Key:" + i + ", Value:" + val; 
});  

console.log(text);  

//Object Key:one, Value:1Key:two, Value:2Key:three, Value:3Key:four, Value:4Key:five,