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Type Hints

Aliases

Clojure provides aliases for a large number of built-in Java types. For example, you can hint an Integer with ^int instead of ^Integer. This is particularly useful for arrays, whose class names contain special characters (e.g. the type of (int-array []) is [I).

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Short-hands

In addition to with-meta, there are a number of short-hand reader macros for affixing metadata to objects.

• ^{:doc "How obj works!"} obj - Sets the metadata of obj to the provided map. Equivalent to (with-meta obj {:doc "How obj works!"}).
• ^:dynamic obj - Sets the given keyword to true in the object's metadata. Equivalent to ^{:dynamic true} obj.

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(defproject usertwice "0.1.0-SNAPSHOT"
  :description "FIXME: write description"
  :url "http://example.com/FIXME"
  :license {:name "Eclipse Public License"
            :url "http://www.eclipse.org/legal/epl-v10.html"}
  :dependencies [[org.clojure/clojure "1.5.1"]]
  :source-paths ["."]
  :repl-options {:init-ns user})

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set -g default-terminal "xterm-256color"                  # More colors
set-option -g xterm-keys on                               # Work more nicely with odd key combos (emacs)
set -g base-index 1                                       # Tabs start at '1', not '0'
set -s escape-time 0                                      # Faster activation

# Bind <C-q> to leader
# Make sure to update status-right to include your leader!
unbind C-b
set -g prefix C-q
bind-key q send-prefix

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Check out README.md to get started editing Clojure with Emacs.

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upsearch () {
  if test -e "$1"; then
    echo "$PWD"
  else
    if [ "$PWD" = "/" ]; then
      return 1;
    else
      pushd .. > /dev/null
      upsearch "$1"
      exit_status=$?

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;; Add more parens with wrap! M-(
(+ 1 * 2 3)                             ; -> (+ 1 (*) 2 3)

;; Slurp
;; To the right with C-right
(+ 1 (*) 2 3)                           ; -> (+ 1 (* 2) 3)
;; To the left with C-M-left
(+ 1 (*) 2 3)                           ; -> (+ (1 *) 2 3)

;; and Barf

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Slides

• Functional Programming in Ruby

Blogs

• Christophe Grand

Books

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<script type="text/javascript">
var queueBytesLoaded = 0;
var queueBytesTotal = 0;
var myQueue = null;

var queueChangeHandler = function(queue){
	// alert('Uploading Started');
	myQueue = queue;
	// console.log("COLLECTION CHANGE!");
	var list = document.getElementById('file_todo_list');

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var mocha  = require('mocha');
var expect = require('chai').expect;

describe("My project", function () {
  it("should know its version", function () {
    var myProject = require('../index');
    expect(myProject.version).to.not.equal(undefined);
    expect(myProject.version).to.equal('0.0.0');
  });
});