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Capitalize or change case of an NSString in Objective-C
...g stringWithString:self];
[self enumerateSubstringsInRange:NSMakeRange(0, [self length])
options:NSStringEnumerationBySentences
usingBlock:^(NSString *sentence, NSRange sentenceRange, NSRange enclosingRange, BOOL *stop) {
[mutableSel...
How to randomize (shuffle) a JavaScript array?
..., randomIndex;
// While there remain elements to shuffle...
while (0 !== currentIndex) {
// Pick a remaining element...
randomIndex = Math.floor(Math.random() * currentIndex);
currentIndex -= 1;
// And swap it with the current element.
temporaryValue = array[curr...
Executing a command stored in a variable from PowerShell
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answered Aug 29 '10 at 3:51
Roman KuzminRoman Kuzmin
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Android equivalent of NSUserDefaults in iOS
...editor.commit();
//--READ data
myvar = preferences.getInt("var1", 0);
Where 'context' is the current context (e.g. in an activity subclass could be this).
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What is a reasonable order of Java modifiers (abstract, final, public, static, etc.)?
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edited Jun 20 at 9:12
Community♦
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answered May 24 '13 at 9:45
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Print variables in hexadecimal or decimal format
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cnicutarcnicutar
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Displaying the build date
... build - they tend to refer to it as "last Thursday's" rather than build 1.0.8.4321.
25 Answers
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How is attr_accessible used in Rails 4?
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Rory O'Kane
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answered Jun 28 '13 at 18:30
Pierre-Louis GottfroisPierre-Louis...
Node.js client for a socket.io server
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answered May 22 '12 at 14:05
alessioalexalessioalex
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How to map and remove nil values in Ruby
...ct it to become the norm very soon.
For example:
numbers = [1, 2, 5, 8, 10, 13]
enum.filter_map { |i| i * 2 if i.even? }
# => [4, 16, 20]
In your case, as the block evaluates to falsey, simply:
items.filter_map { |x| process_x url }
"Ruby 2.7 adds Enumerable#filter_map" is a good read on t...