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Ruby array to string conversion
... ')
EDIT:
"'#{['12','34','35','231'].join("', '")}'"
Some string interpolation to add the first and last single quote :P
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Regular Expression for alphanumeric and underscores
I would like to have a regular expression that checks if a string contains only upper and lowercase letters, numbers, and underscores.
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Padding within inputs breaks width 100%
Ok, so we know that setting padding to an object causes its width to change even if it is set explicitly. While one can argue the logic behind this, it causes some problems with some elements.
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Evenly space multiple views within a container view
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So my approach allows you to do this in interface builder. What you do is create 'spacer views' that you have set to match heights equally. Then add top and bottom constraints to the labels (see the screenshot).
More specifical...
How to make an enum conform to a protocol in Swift?
...cumentation says that classes , structs , and enums can all conform to protocols, and I can get to a point where they all conform. But I can't get the enum to behave quite like the class and struct examples:
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Can I have multiple background images using CSS?
Is it possible to have two background images? For instance, I'd like to have one image repeat across the top (repeat-x), and another repeat across the entire page (repeat), where the one across the entire page is behind the one which repeats across the top.
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Python: How to get stdout after running os.system? [duplicate]
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If all you need is the stdout output, then take a look at subprocess.check_output():
import subprocess
batcmd="dir"
result = subprocess.check_output(batcmd, shell=True)
Because you were using os.system(), you'd have to set shell=True to get the same beha...
Node.js: what is ENOSPC error and how to solve?
I have a problem with Node.js and uploading files to server. For uploading files to server I use this plugin . When starting file upload to the server, Node.js process crashed and show error:
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General guidelines to avoid memory leaks in C++ [closed]
What are some general tips to make sure I don't leak memory in C++ programs? How do I figure out who should free memory that has been dynamically allocated?
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jQuery append() vs appendChild()
Here's some sample code:
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