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What is the difference between a Docker image and a container?
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the image is the recipe, the container is the cake ;-) you can make as many cakes as you like with a given recipe
– Julien
Sep 7 '17 at 8:25
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How to convert a number to string and vice versa in C++
...vert it to a number. If no valid number could be constructed, for example because there is no numeric data or the number is out-of-range for the type, an exception is thrown (std::invalid_argument or std::out_of_range).
If conversion succeeded and idx is not 0, idx will contain the index of the fir...
Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
I first noticed in 2009 that GCC (at least on my projects and on my machines) have the tendency to generate noticeably faster code if I optimize for size ( -Os ) instead of speed ( -O2 or -O3 ), and I have been wondering ever since why.
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List of ANSI color escape sequences
...ete set of ANSI escape codes: ascii-table.com/ansi-escape-sequences-vt-100.php
– formixian
Mar 26 '18 at 19:18
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Checking for a dirty index or untracked files with Git
How can I check if I have any uncommitted changes in my git repository:
14 Answers
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Remove non-ascii character in string
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answered Dec 31 '13 at 11:05
ZaffyZaffy
14.1k88 gold badges4242 silver badges6969 bronze badges
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How do I get the current version of my iOS project in code?
I would like to be able to get the current version of my iOS project/app as an NSString object without having to define a constant in a file somewhere. I don't want to change my version value in 2 places.
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How to use protractor to check if an element is visible?
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This should do it:
expect($('[ng-show=saving].icon-spin').isDisplayed()).toBe(true);
Remember protractor's $ isn't jQuery and :visible is not yet a part of available CSS selectors + pseudo-selectors
More info at https://stackoverflow.com/a/1338...
Using an SSH keyfile with Fabric
How do you configure fabric to connect to remote hosts using SSH keyfiles (for example, Amazon EC2 instances)?
8 Answers
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How to change the port of Tomcat from 8080 to 80?
I want to execute my web app as http://localhost .
14 Answers
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