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How to validate a url in Python? (Malformed or not)
I have url from the user and I have to reply with the fetched HTML.
10 Answers
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Set every cell in matrix to 0 if that row or column contains a 0
Given a NxN matrix with 0s and 1s. Set every row that contains a 0 to all 0 s and set every column that contains a 0 to all 0 s.
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Regex to get string between curly braces
...use them so infrequently. This year my new year's resolution is to not try and learn regex again - So this year to save me from tears I'll give it to Stack Overflow . (Last Christmas remix).
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Concurrent HashSet in .NET Framework?
...t; _data;
This is the recommended option because the type is thread-safe and provide you the same advantages than a HashSet<T> except key and value are different objects.
Source: Social MSDN
ConcurrentBag
If you don't mind about the duplicate entries, you can use the class ConcurrentBag&l...
rvm installation not working: “RVM is not a function”
...inal after this setting the flag.
Sometimes it is required to set the command to /bin/bash --login.
For remote connections it is important to understand the differene between running interactive ssh session and executing single commands.
While running ssh server and then working with the server...
Real world use cases of bitwise operators [closed]
...ets
Always involves checksums, parity, stop bits, flow control algorithms, and so on, which usually depend on the logic values of individual bytes as opposed to numeric values, since the medium may only be capable of transmitting one bit at a time.
Compression, Encryption
Both of these are heavily d...
What does the Q_OBJECT macro do? Why do all Qt objects need this macro?
I just started using Qt and noticed that all the example class definitions have the macro Q_OBJECT as the first line. What is the purpose of this preprocessor macro?
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What is the difference between include and require in Ruby?
My question is similar to " What is the difference between include and extend in Ruby? ".
11 Answers
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How to declare a variable in a PostgreSQL query
...master_login = (SELECT login
FROM master_user)
AND (SELECT registration_date
FROM master_user) > ...;
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How to find foreign key dependencies in SQL Server?
... Thanks! I just needed to add << WHERE FK.TABLE_NAME = 'MyTable' AND CU.COLUMN_NAME = 'MyColumn' >> to get the specific column.
– Even Mien
Jun 10 '09 at 18:16
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