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How to rollback just one step using rake db:migrate
...y to do that, but I don't know the correct value of n to use. Is there any command to check the current n value?
5 Answers
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How can I calculate the time between 2 Dates in typescript
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What's the difference between size_t and int in C++?
...or evaluates to size_t.
The actual type of size_t is platform-dependent; a common mistake is to assume size_t is the same as unsigned int, which can lead to programming errors, particularly as 64-bit architectures become more prevalent.
Also, check Why size_t matters
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check if directory exists and delete in one command unix
...o check if a directory exists and delete if it does,in Unix using a single command? I have situation where I use ANT 'sshexec' task where I can run only a single command in the remote machine. And I need to check if directory exists and delete it...
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Rails: convert UTC DateTime to another time zone
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Android AsyncTask threads limits?
... there are less than core pool size threads currently active and a new job comes in, the executor will create a new thread and execute it immediately. If there are at least core pool size threads running, it will try to queue the job and wait until there is an idle thread available (i.e. until anoth...
Do you need to close meta and link tags in HTML?
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How to implement the Android ActionBar back button?
...arent activity in the AndroidManifest.xml file
<activity android:name="com.example.ServicesViewActivity" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.example.ParentActivity" />
</activity>
See here for further reading.
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Undoing accidental git stash pop
I stashed some local changes before doing a complicated merge, did the merge, then stupidly forgot to commit before running git stash pop . The pop created some problems (bad method calls in a big codebase) that are proving hard to track down. I ran git stash show , so I at least know which file...