摘要：
function isArray(object){ return object && typeof object==='object' && typeof object.length==='number' && typeof object.splice==='function' && //判断len 阅读全文
摘要：
The most common way to loop through the elements of an array is with a for loop:var o = [1,2,3,4,5]var keys = Object.keys(o); // Get an ar... 阅读全文