trendsetter37

;; Enter your code here. Read input from STDIN. Print output to STDOUT
(defun space-split (string)
	(loop for start = 0 then (1+ finish)
		for finish = (position #\Space string :start start)
		collecting (parse-integer (subseq string start finish))
		until (null finish)))

(defun min-from-list (list &optional (default 1000))
	(reduce #'min list :initial-value default))

trendsetter37

;https://www.hackerrank.com/challenges/halloween-party

(defn determine_pieces [number]
    (if (= (mod number 2) 0)
        (* (/ number 2) (/ number 2))
        (* (quot number 2) (+ (quot number 2) 1)))) ;quot is clojure's version of non-float division

(dotimes [i (Integer/parseInt (read-line))]
    (let [input (Integer/parseInt (read-line))]
        (println (determine_pieces input))))

addyosmani

CSS Layout Debugger

A tweet-sized debugger for visualizing your CSS layouts. Outlines every DOM element on your page a random (valid) CSS hex color.

One-line version to paste in your DevTools

Use $$ if your browser aliases it:

~ 108 byte version

colingourlay

var obj = {b: 3, c: 2, a: 1};

_.sortKeysBy(obj);
// {a: 1, b: 3, c: 2}

_.sortKeysBy(obj, function (value, key) {
    return value;
});
// {a: 1, c: 2, b: 3}

richhickey

(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)

DanHerbert

OBSOLETE

This entire guide is based on an old version of Homebrew/Node and no longer applies. It was only ever intended to fix a specific error message which has since been fixed. I've kept it here for historical purposes, but it should no longer be used. Homebrew maintainers have fixed things and the options mentioned don't exist and won't work.

I still believe it is better to manually install npm separately since having a generic package manager maintain another package manager is a bad idea, but the instructions below don't explain how to do that.

Fixing npm On Mac OS X for Homebrew Users

Installing node through Homebrew can cause problems with npm for globally installed packages. To fix it quickly, use the solution below. An explanation is also included at the end of this document.

pbastowski

Brackets syntax coloring for AngularJS inline-templates

In the Brackets editor, have you noticed that the HTML within <SCRIPT type="text/ng-template"> is not syntax-colored? Here is how to fix it.

Background

AngularJS has support for inline HTML templates. I am going to explain here only how to get the syntax coloring working, not what inline-templates actually are. To create an inline-template, you put the template's HTML into a SCRIPT tag like this:

    <SCRIPT type="text/ng-template" id="/path/to/your/template.html">template: {{HTML}} here</SCRIPT>

bsima

For most of the tools on here, if you follow the GitHub repos back to the user that owns the repo, they usually have other cool Clojure tools they build. Just a general observation about the Clojure community.

Learnings

• Clojure home - There's a ton of good stuff here, like the rationale behind the design and explanations of the best features of Clojure.
• Clojure.github.io - The core Clojure documentation. Useful for looking up functions and such.
• Clojuredoc - Community written Clojure documentation and articles
• Clojure Koans - Learn Clojure with Koans
  • When you get stuck, use these YouTube videos to help you.
• 4Clojure - Solve simple problems to stretch your Clojure skills

addyosmani

Update May 2017

Eric Bidelman has documented some of the common workflows possible with headless Chrome over in https://developers.google.com/web/updates/2017/04/headless-chrome.

Update

If you're looking at this in 2016 and beyond, I strongly recommend investigating real headless Chrome: https://chromium.googlesource.com/chromium/src/+/lkgr/headless/README.md

Windows and Mac users might find using Justin Ribeiro's Docker setup useful here while full support for these platforms is being worked out.

zerg000000

(ns com.example.bst)
; using {:val :left :right} as tree data structure

(defn node [val & [left right other]]
  {:val val :left left :right right :bag other})

(defn insert [parent i-node]
  (let [i-val (:val i-node)
        p-val (:val parent)
        side (cond (> i-val p-val) :left