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How do I remove blank elements from an array?
...It will either return cities as its return value if it rejected something, or nil if no rejections are made. That can be a gotcha if you're not careful (thanks to ninja08 for pointing this out in the comments).
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Is a url query parameter valid if it has no value?
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Valid to the URI RFC
Likely acceptable to your server-side framework/code
The URI RFC doesn't mandate a format for the query string. Although it is recognized that the query string will often carry name-value pairs, it is not required to (e.g. it will often contain another URI).
3.4...
How do I update Node.js?
... versions of node. Full source code is here.
There is a separate project for nvm for Windows: github.com/coreybutler/nvm-windows
Below are the full steps to use NVM for multiple version of node on windows
download nvm-setup.zip extract and install it.
execute command nvm list available from cmd...
How to check if a value exists in a dictionary (python)
...on is that each of the above returns a different type of object, which may or may not be well suited for lookup operations:
>>> type(d.viewvalues())
<type 'dict_values'>
>>> type(d.values())
<type 'list'>
>>> type(d.itervalues())
<type 'dictionary-valueiter...
Root user/sudo equivalent in Cygwin?
...art --action=runas command
This will open a Windows dialogue box asking for the Admin password and run the command if the proper password is entered.
This is easily scripted, so long as ~/bin is in your path. Create a file ~/bin/sudo with the following content:
#!/usr/bin/bash
cygstart --action=...
Remove the last line from a file in Bash
...sed versions older than 3.95, so you have to use it as a filter with a temporary file:
cp foo.txt foo.txt.tmp
sed '$ d' foo.txt.tmp > foo.txt
rm -f foo.txt.tmp
Of course, in that case you could also use head -n -1 instead of sed.
MacOS:
On Mac OS X (as of 10.7.4), the equivalent of the sed -...
How to display nodejs raw Buffer data as Hex string
The following code uses SerialPort module to listen to data from a bluetooth connection.
2 Answers
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How can I get the baseurl of site?
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Try this:
string baseUrl = Request.Url.Scheme + "://" + Request.Url.Authority +
Request.ApplicationPath.TrimEnd('/') + "/";
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What's the optimum way of storing an NSDate in NSUserDefaults?
There's two ways of storing an NSDate in NSUserDefaults that I've come across.
4 Answers
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How to print a number with commas as thousands separators in JavaScript
...trying to print an integer in JavaScript with commas as thousands separators. For example, I want to show the number 1234567 as "1,234,567". How would I go about doing this?
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