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rake db:schema:load vs. migrations
... question here - if migrations can get slow and cumbersome as an app gets more complex and if we have the much cleaner rake db:schema:load to call instead, why do migrations exist at all?
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Capturing multiple line output into a Bash variable
...reas (2) the unquoted version (echo $RESULT) replaces each sequence of one or more blanks, tabs and newlines with a single space. Thus (1) preserves the shape of the input variable, whereas (2) creates a potentially very long single line of output with 'words' separated by single spaces (where a 'wo...
How to calculate the difference between two dates using PHP?
I have two dates of the form:
33 Answers
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How can I create Min stl priority_queue?
The default stl priority queue is a Max one (Top function returns the largest element).
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How to increase heap size of an android application?
...uses several 3D models. Such a model with textures can take up a lot of memory. I found out the manufacturer sets a limit on the heap size an application can use. For example my tablet Samsung Galaxy Tab 8.9 P7310 can take up 64MB of memory.
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Check if a folder exist in a directory and create them using C#
How can I check if directory C:/ contains a folder named MP_Upload , and if it does not exist, create the folder automatically?
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CSS3 background image transition
...ade-in fade-out" effect using the CSS transition. But I can't get this to work with the background image...
13 Answers
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How to scale Docker containers in production
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Update: 2019-03-11
First of all thanks for those who have upvoted this answer over the years.
Please be aware that this question was asked in August 2013, when Docker was still a very new technology. Since then: Kubernetes was launched on June 2014, Docker swarm w...
Java generics - why is “extends T” allowed but not “implements T”?
I wonder if there is a special reason in Java for using always " extends " rather than " implements " for defining bounds of typeparameters.
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How to set commands output as a variable in a batch file
Is it possible to set a statement's output of a batch file to a variable, for example:
7 Answers
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