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How to rollback a specific migration?
...back everything. Not nice! This was Rails 4.2 - I guess it may be fixed by now.
– Dave Hartnoll
Mar 13 '18 at 16:37
1
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How to convert string to char array in C++?
I would like to convert string to char array but not char* . I know how to convert string to char* (by using malloc or the way I posted it in my code) - but that's not what I want. I simply want to convert string to char[size] array. Is it possible?
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Best way to disable button in Twitter's Bootstrap [duplicate]
...ork for <button class="close"> e.g. close button in a modal. Anyone know how to do it?
– user9645
Mar 22 '17 at 12:41
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show 2 more co...
Qt: can't find -lGL error
... This worked for me on Ubuntu 16.10, but I'm confused if it is now using the NVidia GPU for OpenGL rendering, or a s/w renderer?
– DavidJ
Jan 12 '17 at 16:44
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How to calculate dp from pixels in android programmatically [duplicate]
...ain the current density for a specific display, use densityDpi" . However, now that I've tested both ways, both seem to work fine. Just try to prefer float or double instead of int, because int might lose some precision on some cases. For example, try to convert the height to dp and back to px on QV...
Swap key with value JSON
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Seems the better solution for nowdays (2019)! Somebody can confirm, is it? Performance good? Semantic is perfect: we can see that is really a simple "map and swap" solution.
– Peter Krauss
Jan 3 '19 at 17:41
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Javascript How to define multiple variables on a single line?
... was useful for me because I declare many variables upfront in my program. Now, instead of taking 30+ lines I can use a few lines without sacrificing readability.
– Kalif Vaughn
Mar 9 at 15:09
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Break when a value changes using the Visual Studio debugger
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Address: &(this->m_value)
Byte Count: 4 (Because int has 4 bytes)
Now, we can resume the program. The debugger will stop when the value is changed.
You can do the same with inherited classes or compound classes.
class B
{
private:
A m_a;
};
Address: &(this->m_a.m_value)...
Install an apk file from command prompt?
...cmd
Navigate to platform-tools\ in the android-sdk windows folder
Type adb
now follow the steps writte by Mohit Kanada (ensure that you mention the entire path of the .apk file for eg. d:\android-apps\test.apk)
share
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Android Webview - Completely Clear the Cache
...you probably want to delete cookies. Though I'm sure you found that out by now.
– NineToeNerd
Mar 3 '16 at 3:42
Need t...