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How do I check if an array includes a value in JavaScript?
...ontains(array, value) (also aliased as _.include and _.includes)
Dojo Toolkit: dojo.indexOf(array, value, [fromIndex, findLast])
Prototype: array.indexOf(value)
MooTools: array.indexOf(value)
MochiKit: findValue(array, value)
MS Ajax: array.indexOf(value)
Ext: Ext.Array.contains(array, value)
Lodash...
How to pass command line arguments to a rake task
...ons and dependencies need to be inside arrays:
namespace :thing do
desc "it does a thing"
task :work, [:option, :foo, :bar] do |task, args|
puts "work", args
end
task :another, [:option, :foo, :bar] do |task, args|
puts "another #{args}"
Rake::Task["thing:work"].invoke(args[:o...
Python != operation vs “is not”
...
== is an equality test. It checks whether the right hand side and the left hand side are equal objects (according to their __eq__ or __cmp__ methods.)
is is an identity test. It checks whether the right hand side and the left hand side ar...
HTTP redirect: 301 (permanent) vs. 302 (temporary)
...follow
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edited Sep 8 '09 at 11:05
answered Sep 8 '09 at 10:51
...
How do you detect where two line segments intersect? [closed]
... can find t and u such that:
p + t r = q + u s
Cross both sides with s, getting
(p + t r) × s = (q + u s) × s
And since s × s = 0, this means
t (r × s) = (q − p) × s
And therefore, solving for t:
t = (q − p) × s / (r × s)
In the same way, we can solve for ...
Maximum length for MD5 input/output
What is the maximum length of the string that can have md5 hashed? Or: If it has no limit, and if so what will be the max length of the md5 output value?
...
Best way to convert an ArrayList to a string
...that I want to output completely as a String. Essentially I want to output it in order using the toString of each element separated by tabs. Is there any fast way to do this? You could loop through it (or remove each element) and concatenate it to a String but I think this will be very slow.
...
Define a lambda expression that raises an Exception
How can I write a lambda expression that's equivalent to:
6 Answers
6
...
Using margin:auto to vertically-align a div
...ly if we use margin:0 auto; . Should margin:auto auto; work how I think it should work? Centering it vertically as well?
...
Python json.loads shows ValueError: Extra data
...data from a JSON file "new.json", and I want to filter some data and store it into a new JSON file. Here is my code:
9 Answ...