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Matrix Transpose in Python
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Python 2:
>>> theArray = [['a','b','c'],['d','e','f'],['g','h','i']]
>>> zip(*theArray)
[('a', 'd', 'g'), ('b', 'e', 'h'), ('c', 'f', 'i')]
Python 3:
>>> [*zip(*theArray)]
[('a', 'd', 'g'), ('b', 'e', 'h'), ('c', 'f', 'i'...
Can an Option in a Select tag carry multiple values?
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One way to do this, first one an array, 2nd an object:
<select name="">
<option value='{"num_sequence":[0,1,2,3]}'>Option one</option>
<option value='{"foo":"bar","one":"two"}'>Option two</option>
</s...
Read input from console in Ruby?
...ameters through the command line. Command line arguments are stores in the array ARGV. so ARGV[0] is the first number and ARGV[1] the second number
#!/usr/bin/ruby
first_number = ARGV[0].to_i
second_number = ARGV[1].to_i
puts first_number + second_number
and you call it like this
% ./plus.rb 5...
How to remove item from list in C#?
...t lists have an indexer, that is, they can also be accessed like a dynamic array, i.e. results[3] will give you the 4th element in the results list (because the first element has the index 0, the 2nd has index 1 etc).
So if you want to remove all entries where the first name is the same as in the 4t...
Representing null in JSON
...= '{"myString": ""}';
var json5 = '{"myString": "null"}';
var json6 = '{"myArray": []}';
console.log(JSON.parse(json1)); // {}
console.log(JSON.parse(json2)); // {myCount: null}
console.log(JSON.parse(json3)); // {myCount: 0}
console.log(JSON.parse(json4)); // {myString: ""}
console.log(JSON.parse(...
Create UIActionSheet 'otherButtons' by passing in array, not varlist
I have an array of strings that I want to use for button titles on a UIActionSheet. Unfortunately, the otherButtonTitles: argument in the method invocation takes a variable length list of strings, not an array.
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Generate array of all letters and digits
Using ruby, is it possible to make an array of each letter in the alphabet and 0-9 easily?
7 Answers
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Why does gulp.src not like being passed an array of complete paths to files?
I'm attempting to pass gulp.src an array of files that I want it to deal with. This is the array as it stands.
1 Answer
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In C#, why is String a reference type that behaves like a value type?
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Because it just contains a reference to a character array, which is of variable size. Having a value type who's only real "value" was a reference type would just be all the more confusing, as it would still have reference semantics for all intensive purposes.
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What is the best way to conditionally apply a class?
Lets say you have an array that is rendered in a ul with an li for each element and a property on the controller called selectedIndex . What would be the best way to add a class to the li with the index selectedIndex in AngularJS?
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