IceCreamYou

/**
 * Extract a multiline string from a multiline comment inside a function.
 *
 * @param {Function} fn The function containing the string.
 * @param {vars} A map of tokens to values to replace in the string.
 */
function textFromComment(fn, vars) {
    var s = (fn + '').match(/^[\s\S]*?\/\*!?\s*([\s\S]+?)\s*\*\/$/m)[1];
    if (typeof vars !== 'undefined') {
        var keys = Object.keys(vars).sort(function(a, b) { return b.length - a.length; });

IceCreamYou

Keybase proof

I hereby claim:

• I am IceCreamYou on github.
• I am icecreamyou (https://keybase.io/icecreamyou) on keybase.
• I have a public key whose fingerprint is 003D 9415 45F6 8791 898B 82BE 2F57 FE00 41D6 AF70

To claim this, I am signing this object:

IceCreamYou

/**
 * Returns a normally distributed random variable.
 *
 * Adapted from http://blog.yjl.im/2010/09/simulating-normal-random-variable-using.html
 * To the extent I have the ability to do so, this code is released into the public domain.
 */
function random_normal(mean, variance) {
    if (typeof mean === 'undefined') {
        mean = 0.0;
    }

IceCreamYou

/**
 * Create or update the value of a URL query parameter.
 *
 * Given an input URL, a query parameter, and a value, if the query parameter
 * already exists in the URL, this function replaces that paramter's value with
 * the given value; otherwise, this function adds the parameter to the URL and
 * sets it to the given value. Returns the modified URL.
 */
function updateQueryParam(url, param, value) {
    var search = new RegExp('([?&])(' + param + ')=[^&]*|$', 'i');

IceCreamYou

var container = document.getElementById('container'), // Pick the element(s) you care about
    halfBoxSize = 0, // Facilitates placing boxes (click in the middle, get the upper-left coords)
    roundPxToNearest = 5, // Snap to grid
    roundPctToNearest = 0.0000001; // Precision for percentage values
container.addEventListener('click', reportLocation, false); // mousemove is another useful event

function reportLocation(event) {
    var floorCoords = this.getBoundingClientRect(),
        leftPx = roundPxToNearest * Math.round((event.clientX - floorCoords.left - halfBoxSize) / roundPxToNearest),
        topPx  = roundPxToNearest * Math.round((event.clientY - floorCoords.top  - halfBoxSize) / roundPxToNearest),

IceCreamYou

/**
 * Returns the r^2 value for a three-dimensional data set.
 *
 * `r` is the Pearson product-moment correlation coefficient, a measure of
 * linear correlation.
 *
 * @param {Object[]} data
 *   An array of vectors with `x`, `y`, and `z` properties representing points
 *   in the data set.
 *

IceCreamYou

// Basically copied directly from http://www.catswhocode.com/blog/using-keyboard-shortcuts-in-javascript
var isCtrl = false;
$(document).keyup(function (e) {
  if (e.which == 17)
    isCtrl = false;
}).keydown(function (e) {
  if (e.which == 17)
    isCtrl = true;
  if (e.which == 83 && isCtrl == true) {
    $('#searchbox').focus().select();

IceCreamYou

<!--break-->
<!-- script from https://github.com/dglittle/smiley-slider -->
<script type="text/javascript" src="https://raw.github.com/dglittle/smiley-slider/master/smiley-slider.js"></script>
<script>
jQuery(document).ready(function() {
    var s = new SmileySlider(document.getElementById("slider"), 'https://github.com/dglittle/smiley-slider/raw/master/smiley-slider.png');
    s.position(0.5);
    s.position(function (p) {
        jQuery('.smiley-slider').val(Math.round(p*10));
    });

IceCreamYou

/**
 * Periodically log a message to the JavaScript console.
 *
 * This is useful for logging things in loops; it avoids being overwhelmed by
 * an unstoppable barrage of similar log messages. Example calls:
 *
 * # Log "message" to the console no more than every 500ms.
 * logPeriodically('message', 500);
 * # Log "message" as an error no more than every 500ms.
 * logPeriodically('message', 500, console.error);

IceCreamYou

/**
 * Quickly returns a random UUID that is compliant with RFC-4122 Version 4.
 *
 * An example result is "2c3fa383-0d9d-4104-8fa2-58fdf614f021"
 *
 * Works in modern browsers and IE11+, and not Android Browser. A fallback if
 * you care about those is to drop the Uint32Array and crypto lines, and
 * replace the dX = buf[X] lines with dX = Math.random() * 0x100000000 >>> 0.
 * In node.js do the same but use dX = crypto.randomBytes(4).readUInt32BE(0).
 *