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const counter = (state=0, action) => { | |
switch (action.type) { | |
case 'INCREMENT': | |
return state + 1; | |
case 'DECREMENT': | |
return state - 1; | |
default: | |
return state; | |
} | |
} |
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var a, b, rest; | |
[a,b] = [1,2]; | |
console.log(a); // 1 | |
console.log(b); // 2 // wow, so convenient! will I remember to do this, or not bother? | |
[a, b, ...rest] = [1, 2, 3, 4, 5]; | |
console.log(a); // 1 | |
console.log(b); // 2 | |
console.log(rest); // [3, 4, 5] // incredible... although now I'm thinking this is nearly illegible for other developers |
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/** | |
* Trapezoid tabs | |
*/ | |
body { | |
padding: 40px; | |
font: 130%/2 Frutiger LT Std, sans-serif; | |
} | |
nav { |
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var TweetBox = React.createClass({ | |
getInitialState: function() { | |
return { | |
text: "", | |
photoAdded : false, | |
}; | |
}, | |
togglePhoto : function(event) { | |
this.setState({ photoAdded: !this.state.photoAdded }) | |
}, |
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import Text (asText) | |
type Collection a = Nada | Glue a (Collection a) | |
summm xs = | |
case xs of | |
Nada -> 0 | |
Glue face body -> face + (summm body) | |
listToCollection collection = |
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module Sinatra | |
module Kittens | |
module Helpers | |
def kittens_page(x = 200..500, factor = 0.2) | |
sample_method = RUBY_VERSION >= '1.9' ? :sample : :choice | |
x = x.to_a.send(sample_method) | |
y = ((x - factor*x).floor..(x + factor*x).ceil).to_a.send(sample_method) | |
<<-HTML | |
<!DOCTYPE html> |
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function sum (numbers) { | |
return !numbers.length ? 0 : numbers[0] + sum(numbers.slice(1)); | |
}; |
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type Maybe a = Nothing | Just a | |
type Option a = None | Some a | |
type Result a = Failure | Success a | |
max [] ----> Failure | |
max [1,2,3] -----> Success 3 |
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textarea:focus, | |
input[type="text"]:focus, | |
input[type="password"]:focus, | |
input[type="datetime"]:focus, | |
input[type="datetime-local"]:focus, | |
input[type="date"]:focus, | |
input[type="month"]:focus, | |
input[type="time"]:focus, | |
input[type="week"]:focus, | |
input[type="number"]:focus, |
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class GuessTheNumber | |
def play | |
@nnn = 1.upto(100).to_a.sample | |
# play game | |
puts "Alright, I have a number in mind from 1-100. Pick a number." | |
guess = gets.chomp | |
puts "You said #{guess}." | |
attempt guess | |
end |