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Why does X[Y] join of data.tables not allow a full outer join, or a left join?
...f a philosophical question about data.table join syntax. I am finding more and more uses for data.tables, but still learning...
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How to create custom easing function with Core Animation?
...tion curves in Core Animation
But I think it can be made a little simpler and more readable by using blocks. So we can define a category on CAKeyframeAnimation that looks something like this:
CAKeyframeAnimation+Parametric.h:
// this should be a function that takes a time value between
// 0.0 a...
Type-juggling and (strict) greater/lesser-than comparisons in PHP
PHP is famous for its type-juggling. I must admit it puzzles me, and I'm having a hard time to find out basic logical/fundamental things in comparisons.
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What is the maximum length of latitude and longitude? [closed]
How long can latitude and longitude be?
7 Answers
7
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What's valid and what's not in a URI query?
I've been Googling this back and forth reading RFCs and SO questions trying to crack this, but I still don't got jack.
7 An...
SQL injection that gets around mysql_real_escape_string()
..._escape_string - this makes no sense. It doesn't differ from (int) at all. And they will produce the same result for every input
– zerkms
Jul 24 '12 at 22:40
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Failed to install Python Cryptography package with PIP and setup.py
... pip install cryptography or by downloading the package from their site and running python setup.py , I get the following error:
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What are the Ruby Gotchas a newbie should be warned about? [closed]
I have recently learned the Ruby programming language, and all in all it is a good language. But I was quite surprised to see that it was not as simple as I had expected. More precisely, the "rule of least-surprise" did not seem very respected to me (of course this is quite subjective). For examp...
Does ruby have real multithreading?
...e confusing two very different things here: the
Ruby Programming Language and the specific threading model of one
specific implementation of the Ruby Programming Language. There
are currently around 11 different implementations of the Ruby
Programming Language, with very different and unique thr...
How can I check if an argument is defined when starting/calling a batch file?
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The check for whether a commandline argument has been set can be [%1]==[], but, as Dave Costa points out, "%1"=="" will also work.
I also fixed a syntax error in the usage echo to escape the greater-than and less-than signs. In addition, the exit needs...