Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.
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function probabilityBBeatsA(aa, ba, ab, bb) { | |
var probability = 0.0; | |
for(var i = 0; i < ab; i++) { | |
var product = Math.log(1 + (aa + ba)/(i + bb)); | |
var j = 1; | |
var start = i+1; | |
[bb, ba, aa, i].forEach(function(steps){ | |
var stop = start + steps; |
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// Make Optional a monad | |
extension Optional { | |
// Scala style, define `flatMap` directly | |
func flatMap<U>(f: (a: T) -> Optional<U>) -> Optional<U> { | |
switch (self) { | |
case .None: return nil | |
case .Some(let value): return f(a: value) | |
} | |
} |
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For each Ruby module/class, we have Ruby methods on the left and the equivalent | |
Clojure functions and/or relevant notes are on the right. | |
For clojure functions, symbols indicate existing method definitions, in the | |
clojure namespace if none is explicitly given. clojure.contrib.*/* functions can | |
be obtained from http://github.com/kevinoneill/clojure-contrib/tree/master, | |
ruby-to-clojure.*/* functions can be obtained from the source files in this | |
gist. | |
If no method symbol is given, we use the following notation: |
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(require '[clojure.core.async :as a]) | |
(def xform (comp (map inc) | |
(filter even?) | |
(dedupe) | |
(flatmap range) | |
(partition-all 3) | |
(partition-by #(< (apply + %) 7)) | |
(flatmap flatten) | |
(random-sample 1.0) |
... or Why Pipelining Is Not That Easy
Golang Concurrency Patterns for brave and smart.
By @kachayev
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### Keybase proof | |
I hereby claim: | |
* I am worrydream on github. | |
* I am worrydream (https://keybase.io/worrydream) on keybase. | |
* I have a public key whose fingerprint is 8B48 52DE B697 6685 FAC6 0CFC 8E90 AD8D 7279 401E | |
To claim this, I am signing this object: |
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#!/usr/bin/env ruby | |
device_types_output = `xcrun simctl list devicetypes` | |
device_types = device_types_output.scan /(.*) \((.*)\)/ | |
runtimes_output = `xcrun simctl list runtimes` | |
runtimes = runtimes_output.scan /(.*) \(.*\) \((com.apple[^)]+)\)$/ | |
devices_output = `xcrun simctl list devices` | |
devices = devices_output.scan /\s\s\s\s(.*) \(([^)]+)\) (.*)/ |
I say "animated gif" but in reality I think it's irresponsible to be serving "real" GIF files to people now. You should be serving gfy's, gifv's, webm, mp4s, whatever. They're a fraction of the filesize making it easier for you to deliver high fidelity, full color animation very quickly, especially on bad mobile connections. (But I suppose if you're just doing this for small audiences (like bug reporting), then LICEcap is a good solution).
- Launch quicktime player
- do Screen recording