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What is a regular expression which will match a valid domain name without a subdomain?
... comments), given your specific requirements:
/^[a-zA-Z0-9][a-zA-Z0-9-]{1,61}[a-zA-Z0-9]\.[a-zA-Z]{2,}$/
But note this will reject a lot of valid domains.
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nginx server_name wildcard or catch-all
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edited Sep 20 at 16:11
Rob Bednark
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VIM Ctrl-V Conflict with Windows Paste
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146
From the VIM documentation:
Since CTRLV is used to paste, you can't use it to start a blockw...
Is using a lot of static methods a bad thing?
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John MillikinJohn Millikin
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Find out whether Chrome console is open
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Email Address Validation in Android on EditText [duplicate]
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675
Java:
public static boolean isValidEmail(CharSequence target) {
return (!TextUtils.isEmp...
How can I quantify difference between two images?
...ifference:
$ python compare.py one.jpg one-blurred.jpg
Manhattan norm: 92605183.67 / per pixel: 13.4210411116
Zero norm: 6900000 / per pixel: 1.0
P.S. Entire compare.py script.
Update: relevant techniques
As the question is about a video sequence, where frames are likely to be almost the same,...
What is the most efficient way to loop through dataframes with pandas? [duplicate]
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56
Note that iterrows is very slow (it converts every row to a series, potentially messing with your data types). When you need an iterator, be...
How do I copy the contents of a String to the clipboard in C#? [duplicate]
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edited Jul 13 '12 at 16:01
bluish
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