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Parse an HTML string with JS
...ef='test2'>test03</a></body></html>");
$('a', el) // All the anchor elements
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Getting parts of a URL (Regex)
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I modified this regex to identify all parts of the URL (improved version) - code in Python ^((?P<scheme>[^:/?#]+):(?=//))?(//)?(((?P<login>[^:]+)(?::(?P<password>[^@]+)?)?@)?(?P<host>[^@/?#:]*)(?::(?P<port>\d+)?)?)?(?P<path&g...
How to get the parent dir location
...lways return the parent directory; twitter.com/#!/ActiveState/status/671049326788608
– Sridhar Ratnakumar
Nov 5 '10 at 22:12
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How to select all records from one table that do not exist in another table?
...e = t1.name
WHERE t2.name IS NULL
Q: What is happening here?
A: Conceptually, we select all rows from table1 and for each row we attempt to find a row in table2 with the same value for the name column. If there is no such row, we just leave the table2 portion of our result empty for that row. The...
Redirecting Output from within Batch file
... good and fast way that only opens and positions the file once
@echo off
call :sub >output.txt
exit /b
:sub
command1
command2
...
commandN
Edit 2020-04-17
Every now and then you may want to repeatedly write to two or more files. You might also want different messages on the screen. It is sti...
Authentication versus Authorization
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Authentication is the process of ascertaining that somebody really is who they claim to be.
Authorization refers to rules that determine who is allowed to do what. E.g. Adam may be authorized to create and delete databases,
while Usama is only authorised to read.
The two concep...
Why does Lua have no “continue” statement?
I have been dealing a lot with Lua in the past few months, and I really like most of the features but I'm still missing something among those:
...
How can I sanitize user input with PHP?
Is there a catchall function somewhere that works well for sanitizing user input for SQL injection and XSS attacks, while still allowing certain types of HTML tags?
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Why can lambdas be better optimized by the compiler than plain functions?
...assing them to a function template will instantiate a new function specifically for that object. The compiler can thus trivially inline the lambda call.
For functions, on the other hand, the old caveat applies: a function pointer gets passed to the function template, and compilers traditionally hav...
Differences between MySQL and SQL Server [closed]
I'm an ASP.NET developer who has used Microsoft SQL Server for all my database needs (both at work and for personal projects).
...