84669 person learning
152542 person learning
20005 person learning
5487 person learning
7821 person learning
359900 person learning
3350 person learning
180660 person learning
48569 person learning
18603 person learning
40936 person learning
1549 person learning
1183 person learning
32909 person learning
var obj={ 'sprite-icon.png': 'sprite-icon.png?v=62df6cbea3', 'sprite-icon_ie9.png': 'sprite-icon_ie9.png?v=5f35b8f025' }; for(name in obj){ console.log(name); } 遍历对象,并输出 当前是第几个键值对。以及这个对象总共有多少个键值对。
光阴似箭催人老,日月如移越少年。
var obj = { a: 1, b: 2, c: 3 }; var keys = Object.keys(obj); console.log('长度', keys.length); keys.forEach(function(key, index) { console.log('当前是第', index + 1, '个, key是', key, ', value是', obj[key]); });
Object.keys(obj).forEach((item,index)=>{console.log(item,obj[item],index)}) Object.keys(obj).length
Correct answer upstairs, please add words for like
Correct answer upstairs, please add words for like