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Git submodule head 'reference is not a tree' error
...per-project.
Example:
$ git submodule update
fatal: reference is not a tree: e47c0a16d5909d8cb3db47c81896b8b885ae1556
Unable to checkout 'e47c0a16d5909d8cb3db47c81896b8b885ae1556' in submodule path 'sub'
Oops, someone made a super-project commit that refers to an unpublished commit in the submod...
三大运营商公布提速降费 比比谁更实惠？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...,50元含2GB全国流量,降幅达50%；③推出48个国家和地区流量包天资费,平均降幅超70%；④推出流量共享、流量不清零、流量交易等服务。(人民日报)
中国电信:宽带免费提速流量资费降约四成
中国电信今日公布提速降费十大举措。...
app inventor屏幕属性中的文件范围分别是什么意思？ - App Inventor 2 中文...
...件）写入文件的参考代码如下：生成的文件如下：
程序包 ：从应用程序包中读取文件，应用程序包属于只读存储，不可写入。缓存 ：文件将从应用程序的缓存目录读取和写入，可以在缓存中重新创建临时文件，也允许用户清...
Performing user authentication in Java EE / JSF using j_security_check
...pplication making use of JSF 2.0 (and if any components do exist) and Java EE 6 core mechanisms (login/check permissions/logouts) with user information hold in a JPA entity. The Oracle Java EE tutorial is a bit sparse on this (only handles servlets).
...
Git 工具 - 子模块(submodule)：一个仓库包含另一个仓库 - 开源 & Github -...
...而不是写自己的 Atom 生成代码。 你可能不得不通过 CPAN 安装或 Ruby gem 来包含共享库中的代码，或者将源代码直接拷贝到自己的项目中。 如果将这个库包含进来，那么无论用何种方式都很难定制它，部署则更加困难，因为你必须...
How to parse JSON in Python?
My project is currently receiving a JSON message in python which I need to get bits of information out of. For the purposes of this, let's set it to some simple JSON in a string:
...
Difference between an application server and a servlet container?
I am trying to understand the difference between a full fledged application server (e.g. Weblogic, JBoss etc.) and a servlet container (Tomcat, Jetty etc.).
...
Remove accents/diacritics in a string in JavaScript
...lée"
str.normalize("NFD").replace(/[\u0300-\u036f]/g, "")
> "Creme Brulee"
Two things are happening here:
normalize()ing to NFD Unicode normal form decomposes combined graphemes into the combination of simple ones. The è of Crème ends up expressed as e + ̀.
Using a regex character class to...
How to get the difference between two arrays of objects in JavaScript
...k:
a = [{ value:"4a55eff3-1e0d-4a81-9105-3ddd7521d642", display:"Jamsheer"}, { value:"644838b3-604d-4899-8b78-09e4799f586f", display:"Muhammed"}, { value:"b6ee537a-375c-45bd-b9d4-4dd84a75041d", display:"Ravi"}, { value:"e97339e1-939d-47ab-974c-1b68c9cfb536", display:"Ajmal"}, { value:"a63a6f77...
Spring vs EJB. Can Spring replace EJB? [closed]
...support the EJB standard can, in theory, be ported from one compliant Java EE app server to another. But that means staying away from any and all vendor-specific extensions that lock you in to one vendor.
Spring ports easily between app servers (e.g., WebLogic, Tomcat, JBOSS, etc.) because it does...