thomas

定义和用法 splice() 方法向/从数组中添加/删除项目，然后返回被删除的项目。 注释：该方法会改变原始数组。 例子 1 在本例中，我们将创建一个新数组，并向其添加一个元素： <script type="text/javascript"> var arr = new Array(6) arr[0] = "George" arr[1] = "John" arr[2] = "Thomas" arr[3] = "James" arr[4] = "Adrew" arr[5] = "Martin" document.write(arr + "<br />") arr.splice(2,0,"William") document.write(arr + "<br />") </script> 输出： George,John,Thomas,James,Adrew,Martin George,John,William,Thomas,James,Adrew,Martin 例子 2 在本例中我们将删除位于 index 2 的元素，并添加一个新元素来替代被删除的元素： <script type="text/javascript"> var arr = new Array(6) arr[0] = "George" arr[1] = "John" arr[2] = "Thomas" arr[3] =

【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 我试图按SQL中不同方向的多个列进行排序。 column1 将按降序排序，而 column2 将按升序排序。 我怎样才能做到这一点？ #1楼 ORDER BY column1 DESC, column2 每当两行或更多行的 column1 字段相等时，这将首先按 column1 （降序）对所有内容进行排序，然后按 column2 （升序，这是默认设置）对所有内容进行排序。 #2楼 SELECT * FROM mytable ORDER BY column1 DESC, column2 ASC #3楼 其他答案缺少一个具体的示例，因此请按以下步骤进行： 给定以下 人员 表： FirstName | LastName | YearOfBirth ---------------------------------------- Thomas | Alva Edison | 1847 Benjamin | Franklin | 1706 Thomas | More | 1478 Thomas | Jefferson | 1826 如果执行以下查询： SELECT * FROM People ORDER BY FirstName DESC, YearOfBirth ASC 结果集将如下所示： FirstName |

Tutorial Author Cross-domain Backbone.js with sessions using CORS Thomas Davis Lightweight Infinite Scrolling using Twitter API Thomas Davis Simple example - Node.js, Restify, MongoDb and Mongoose Thomas Davis Organizing your application using Modules (require.js) Thomas Davis Real-Time Backbone With PubNub PubNub SEO for single page apps Thomas Davis What is a collection? Thomas Davis What is a model? Thomas Davis What is a router? Thomas Davis What is a view? Thomas Davis Why do you need Backbone.js? Thomas Davis 来源： oschina 链接： https://my.oschina.net/u/113421/blog/532992

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