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Why are Perl 5's function prototypes bad?
...background in other programming languages tend to expect prototypes to provide a mechanism for checking that function calls are correct: that is, that they have the right number and type of arguments. Perl's prototypes are not well-suited for this task. It's the misuse that's bad. Perl's prototypes ...
What are the differences between Clojure, Scheme/Racket and Common Lisp?
...e language level (worth watching: http://www.infoq.com/presentations/Value-Identity-State-Rich-Hickey)
Scheme distinctive features:
Arguably the simplest and easiest to learn Lisp
Hygienic macros (see http://en.wikipedia.org/wiki/Hygienic_macro) - elegantly avoids the problems with accidental sy...
Preventing scroll bars from being hidden for MacOS trackpad users in WebKit/Blink
...afari/Chrome) default behaviour on MacOS since 10.7 (Mac OS X Lion) is to hide scroll bars from trackpad users when they're not in use. This can be confusing ; the scroll bar is often the only visual cue that an element is scrollable.
...
What's the difference between Invoke() and BeginInvoke()
...ple, if you have a Person with FirstName and LastName properties, and you did:
person.FirstName = "Kevin"; // person is a shared reference
person.LastName = "Spacey";
control.BeginInvoke(UpdateName);
person.FirstName = "Keyser";
person.LastName = "Soze";
Then the UI may well end up displaying "Ke...
Will HTML5 allow web apps to make peer-to-peer HTTP connections?
... of concept in a WebKit build that does HTML5 Peer to Peer Conversational Video.
They have demonstrations in their blog of the technology in action, as well as diagrams and explanations on how the technology will work.
They are working on getting this stabilized and committed to the WebKit repos...
Cancellation token in Task constructor: why?
...sitioning to
Running, it'll immediately transition to Canceled. This avoids the
costs of running the task if it would just be canceled while running
anyway.
If the body of the task is also monitoring the cancellation token and throws an OperationCanceledException containing that token
(wh...
How to remove gaps between subplots in matplotlib?
...How do I remove the gaps between the subplots and make the image a tight grid?
5 Answers
...
Setup RSpec to test a gem (not Rails)
...dded s.add_development_dependency "rspec", ">= 2.0.0" to gemspec and did a bundle install .
4 Answers
...
How to exclude certain directories/files from git grep search
...s entirely within (modern versions of) git now.
– David
Nov 16 '15 at 15:12
Why the downvotes? This answer still appli...
Why are joins bad when considering scalability?
...e raw joins and make them much faster:
Join on a surrogate key (autonumer/identity column) rather than a natural key. This means smaller (and therefore faster) comparisons during the join operation
Indexes
Materialized/indexed views (think of this as a pre-computed join or managed de-normalization)...