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Comparison between Corona, Phonegap, Titanium
...uch as Geolocation, Accelerometer Camera, Contacts, Database, File system, etc. Basically any function that the mobile phone SDK provides can be "bridged" to the javascript world. On the other hand, a normal web app that runs on the mobile web browser does not have access to most of these functions ...
PHP memory profiling
...libjudydebian1
sudo pecl install memprof
echo "extension=memprof.so" > /etc/php5/mods-available/memprof.ini
sudo php5enmod memprof
service apache2 restart
And then in my code:
<?php
memprof_enable();
// do your stuff
memprof_dump_callgrind(fopen("/tmp/callgrind.out", "w"));
Finally open t...
C# 能否获取一个对象所占内存的大小？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...所占内存的大小？今日，在项目重构的时候忽然想到一个问题，一个类哪些成员的增加，会影响一个类所占内存的大小？C#有没有办法知道一个对象占多少内存呢？ ...今日，在项目重构的时候忽然想到一个问题，一个类哪些成员...
jasmine: Async callback was not invoked within timeout specified by jasmine.DEFAULT_TIMEOUT_INTERVAL
...at helped until I noticed my Macbook was running sluggishly. I noticed the CPU was pegged by another process, which I killed. The Jasmine async error disappeared and my tests are fine once again.
Don't ask me why, I don't know. But in my circumstance it seemed to be a lack of system resources at fa...
Difference between string and text in rails?
...humb, use :string for short text input (username, email, password, titles, etc.) and use :text for longer expected input such as descriptions, comment content, etc.
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Web API 最佳入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...时服务，例如股票，聊天室，在线游戏等实时性要求比较高的服务。
为什么要用 Web API
Web API最重要的是可以构建面向各种客户端的服务。另外与WCF REST Service不同在于，Web API利用Http协议的各个方面来表达服务(例如 URI/request r...
Running multiple AsyncTasks at the same time — not possible?
...4 (API 19) the above fields are changed to this:
private static final int CPU_COUNT = Runtime.getRuntime().availableProcessors();
private static final int CORE_POOL_SIZE = CPU_COUNT + 1;
private static final int MAXIMUM_POOL_SIZE = CPU_COUNT * 2 + 1;
private static final BlockingQueue<Runnable&g...
你真的了解熊市有多么可怕吗？ - 创意 - 清泛网 - 专注C/C++及内核技术
...巫见大巫了。大盘反弹在1700点后，横了一个月，一个冲高的假突破后，大盘再次杀跌，当时没有人再敢抄底了，因为谁也不敢想底在哪里，十几天下来，大盘已经到了1300，后来大盘出现了又一次的反弹，最后进入了最恐怖的阴...
How to populate/instantiate a C# array with a single value?
...ated with the default value of the type (e.g. false for bool, 0 for int, etc.).
25 Answers
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【PM干货】2015年阿里业务型PM笔试题 - 项目管理 - 清泛网 - 专注C/C++及内核技术
...界面优化方案。
3、淘宝过程中经常存在用户信息泄露的问题，而快递公司必须知道买家的联系方式，淘宝商家利用这个联系方式向用户发送营销信息。
请设计一个流程来改善这个问题，必须包括：
1）分析淘宝卖家、买家和...