Alex Dixon alex-dixon

Stay cool Clojurists 😎

Usage:

clj -Sdeps '{:deps {cool {:git/url "https://gist.github.com/alex-dixon/bf2218ed3d3c633ed0602e23ae76c420" :sha "a9859300b5af48a18c88bdec2feb28bc91bd9d80"}}}' -m cool

Stupid Spec Tricks

Problem: I want to spec a coll of maps. I know I can use s/coll-of and specify :kind vector? or :kind list?, but either is fine, so I've omitted it. When I call s/explain for this spec with a map it fails properly, but I get explain data for each map entry that says "x" isn't a map. I'd prefer it say it's not a collection and stop there.

Solution:

(s/def ::example (s/coll-of (s/keys :req-un [::foo])

	### Keybase proof

	I hereby claim:

	* I am alex-dixon on github.
	* I am alexdixon (https://keybase.io/alexdixon) on keybase.
	* I have a public key ASBAkk6q6ylqzdp0aCp94qhC_sfaKyUHifuzJBR0GvTaAQo

	To claim this, I am signing this object:

	(defmacro deflet [bindings & body]
	`(do ~@(for [[sym expr] (partition 2 (destructure bindings))]
	(list 'def sym expr))
	~@body))

	(defmacro defbindings [bindings]
	`(do ~@(for [[sym expr] (partition 2 (destructure bindings))]
	(list 'def sym expr))))

	(defmacro deflast [sym]

	(ns myapp.typeahead
	(:require [reagent.core :as r]
	[goog.functions :as gf]
	[myapp.api :as api]))


	(defn input-control [props]
	(let [value (r/atom (:default-value props ""))
	local-change #(reset! value (.. % -target -value))]
	(fn [{:keys [on-change] :as props}]

	(def my-ns 'precept.app-ns)

	my-ns ;; => precept.app-ns
	(ns-interns my-ns) ;; nth not supported on Symbol

	(ns-interns 'precept.app-ns) ;; works
	(ns-interns (quote precept.app-ns)) ;; works

	'precept.app-ns ;; => precept.app-ns
	(quote precept.app-ns) ;; => precept.app-ns

	onDrop: function(e) {
	e.preventDefault();

	this.setState({
	isDragActive: false
	});

	var files;
	if (e.dataTransfer) {
	files = e.dataTransfer.files;

	// Use Gists to store code you would like to remember later on
	console.log(window); // log the "window" object to the console

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>JS Bin</title>
	</head>
	<body>

	<script id="jsbin-javascript">
	// Chapter 3 Exercises