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What's the difference between git clone --mirror and git clone --bare
... cloned repo has it all. It's also set up so that a remote update will re-fetch everything from the origin (overwriting the copied refs). The idea is really to mirror the repository, to have a total copy, so that you could for example host your central repo in multiple places, or back it up. Think o...
How to parse JSON in Java
... How can I parse it to get the values of pageName , pagePic , post_id , etc.?
34 Answers
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Asynchronous vs Multithreading - Is there a difference?
... to other work while the I/O hardware (disk controller, network interface, etc.) does the I/O work. The hardware lets the CPU know when it's finished by interrupting the CPU, and the OS then delivers the event to your application.
Frequently higher-level abstractions and APIs don't expose the unde...
Implementing Comments and Likes in database
...ity tables Photo, Article, Place have their own PK e.g. PhotoID, ArticleID etc but also have another column for the Entity_ID as a FK? Is this unnecessary?
– volume one
Sep 17 '14 at 21:03
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Using Emacs to recursively find and replace in text files not already open
...eplace-regexp: SPACE to replace and move to next match, n to skip a match, etc.
Press C-x s to save buffers. (You can then press y, n or ! to save all at once)
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How do I run a node.js app as a background service?
...ly every Linux distro comes with systemd, which means forever, monit, PM2, etc are no longer necessary - your OS already handles these tasks.
Make a myapp.service file (replacing 'myapp' with your app's name, obviously):
[Unit]
Description=My app
[Service]
ExecStart=/var/www/myapp/app.js
Restart...
Is Redis just a cache?
...ps you with all the plumbing on the server side.
Persistence, Reliability etc.
Unlike a Cache, Redis persists data on the hard disk. You can have a master-slave setup to provide better reliability. To learn more, go through Persistence and Replication topics over here - http://redis.io/documentati...
How do you migrate an IIS 7 site to another server?
... practice for moving a website to another server (along with all settings, etc.)
7 Answers
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MVC pattern on Android
... define your user interface in various XML files by resolution, hardware, etc.
You define your resources in various XML files by locale, etc.
You extend clases like ListActivity, TabActivity and make use of the XML file by inflaters.
You can create as many classes as you wish for your business logi...
How can I add an empty directory to a Git repository?
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You can read "it's impossible, you can't, etc." all over the Internet for this frequent question. The .gitignore trick is a frequent answer, and satisfies many needs. However it IS possible to make git track an truly empty directory, see my answer
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