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Most efficient way to remove special characters from string
...hould only do that once. If you allocate an array that large each time you call the method (and if you call the method frequently) then the method becomes the slowest by far, and causes a lot of work for the garbage collector.
– Guffa
May 5 '15 at 7:36
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Ruby Metaprogramming: dynamic instance variable names
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Didn't work for me for 1.9.3. I used this instead hash.each {|k,v| instance_variable_set("@#{k}",v)}
– Andrei
Jun 10 '12 at 20:32
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Starting the week on Monday with isoWeekday()
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Call startOf before isoWeekday.
var begin = moment(date).startOf('week').isoWeekday(1);
Working demo
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What is __init__.py for?
...ckages as they existed in Python 3.2 and earlier. A regular package is typically implemented as a directory containing an __init__.py file. When a regular package is imported, this __init__.py file is implicitly executed, and the objects it defines are bound to names in the package’s namespace. Th...
How to clone all repos at once from GitHub?
...Create an API token by going to Account Settings -> Applications
Make a call to: http://${GITHUB_BASE_URL}/api/v3/orgs/${ORG_NAME}/repos?access_token=${ACCESS_TOKEN}
The response will be a JSON array of objects. Each object will include information about one of the repositories under that Organiz...
How to JSON serialize sets?
...es.
As shown in the json module docs, this conversion can be done automatically by a JSONEncoder and JSONDecoder, but then you would be giving up some other structure you might need (if you convert sets to a list, then you lose the ability to recover regular lists; if you convert sets to a dictiona...
When should we use mutex and when should we use semaphore
...semaphores is to notify threads One point about notifying threads. You can call sem_post from a signal handler safely (pubs.opengroup.org/onlinepubs/009695399/functions/…) but it is not recomended to call pthread_mutex_lock and pthread_mutex_unlock from signal handlers (manpages.ubuntu.com/manpage...
How to check for an active Internet connection on iOS or macOS?
...implement this method in the .m file of your view controller which you can call
// Checks if we have an internet connection or not
- (void)testInternetConnection
{
internetReachableFoo = [Reachability reachabilityWithHostname:@"www.google.com"];
// Internet is reachable
internetReac...
Is there a visual profiler for Python? [closed]
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A friend and I have written a Python profile viewer called SnakeViz that runs in a web browser. If you are already successfully using RunSnakeRun SnakeViz may not add that much value, but SnakeViz is much easier to install.
Edit: SnakeViz supports Python 2 and 3 and works on ...
Workflow for statistical analysis and report writing
...s for data analysis related to custom report writing? The use-case is basically this:
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