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Why is it slower to iterate over a small string than a small list?
I was playing around with timeit and noticed that doing a simple list comprehension over a small string took longer than doing the same operation on a list of small single character strings. Any explanation? It's almost 1.35 times as much time.
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assign multiple variables to the same value in Javascript
... You may want to comment how the behavior will differ primitive types and reference types when assigning values the way you suggest.
– Steven Wexler
Jun 7 '13 at 4:31
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How to change the blue highlight color of a UITableViewCell?
.... Actually what creates the blue gradient is a view. You can create a view and draw what ever you like, and use the view as the background of your table view cells.
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How to get the day of week and the month of the year?
I don't know much about Javascript, and the other questions I found are related to operations on dates, not only getting the information as I need it.
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How to install a previous exact version of a NPM package?
I used nvm to download node v0.4.10 and installed npm to work with that version of node.
10 Answers
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Update just one gem with bundler
I use bundler to manage dependencies in my rails app, and I have a gem hosted in a git repository included as followed:
8 A...
Reading HTML content from a UIWebView
...L as an instance of NSURL (which can easily be instantiated from NSString) and returns a string with the complete contents of the page at that URL. For example:
NSString *googleString = @"http://www.google.com";
NSURL *googleURL = [NSURL URLWithString:googleString];
NSError *error;
NSString *google...
Cocoa Core Data efficient way to count entities
...just solved this task with selecting all with NSFetchedResultsController and getting the count of the NSArray ! I am sure this is not the best way...
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How can I make space between two buttons in same div?
...uestion was for Bootstrap 2.x, but the same is still valid for Bootstrap 3 and Bootstrap 4.
In Bootstrap 4 you will need to add appropriate margin to your groups using utility classes, such as mx-2.
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How do I run Asynchronous callbacks in Playground
Many Cocoa and CocoaTouch methods have completion callbacks implemented as blocks in Objective-C and Closures in Swift. However, when trying these out in Playground, the completion is never called. For example:
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