JavaScript中的Array對象方法調用，javascriptarray
方法concatfor 迴圈與for in 迴圈
<html><head><script type="text/javascript"> alert(2);var arr=[4,5,6,8,7,4];alert(arr);alert("length:"+arr.length);var arr2=[6,8,9,5,4];alert(arr2);alert(arr2[0]);alert(arr.concat(arr,arr2));for(var x in arr2){alert(x+":"+arr2[x]);}alert(23);</script></head><body></body></html>
var arr=[4,5,6,8,7,4];var arr2=[6,8,9,5,4];alert(arr.join("-"));alert(arr.pop());//刪除並返回最後一個元素，如果數組已經為空白， //那麼此方法不改變數組並返回undefined值alert(arr.shift());//刪除並返回數組的第一個元素
var arr=[4,5,6,8,7,4];var arr2=[6,8,9,5,4];var arr3=[0];alert(arr.join("-"));alert(arr.pop());//刪除並返回最後一個元素，如果數組已經為空白， //那麼此方法不改變數組並返回undefined值alert(arr.shift());//刪除並返回數組的第一個元素alert("push: "+arr3.push(5,4,6,4));//5 向數組末尾添加一個或者多個元素，並返回數組新長度alert("unshift" + arr3.unshift(3,2));//7向數組開頭添加一個或者多個元素，並返回數組新長度alert(arr3);alert(arr3.reverse());//顛倒數組中元素的順序。
var arr2=[6,8,50,9,5,4];alert(arr2.sort(sortNumber));function sortNumber(a,b){ return a-b}
著作權聲明：本文為博主原創文章，未經博主允許不得轉載。
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
