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/**
 * Converts an RGB color value to HSL. Conversion formula
 * adapted from http://en.wikipedia.org/wiki/HSL_color_space.
 * Assumes r, g, and b are contained in the set [0, 255] and
 * returns h, s, and l in the set [0, 1].
 *
 * @param   {number}  r       The red color value
 * @param   {number}  g       The green color value
 * @param   {number}  b       The blue color value
 * @return  {array}           The HSL representation

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var webdriver = require('selenium-webdriver');
var fs = require('fs');

var driver = new webdriver.Builder()
    .withCapabilities(webdriver.Capabilities.phantomjs())
    .build();

webdriver.WebDriver.prototype.saveScreenshot = function(filename) {
    return driver.takeScreenshot().then(function(data) {
        fs.writeFile(filename, data.replace(/^data:image\/png;base64,/,''), 'base64', function(err) {

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var webdriver = require('selenium-webdriver');
var fs = require('fs');

var driver = new webdriver.Builder().build();

webdriver.WebDriver.prototype.saveScreenshot = function(filename) {
    return driver.takeScreenshot().then(function(data) {
        fs.writeFile(filename, data.replace(/^data:image\/png;base64,/,''), 'base64', function(err) {
            if(err) throw err;
        });

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module.exports = function(arr) {
    var map = {};
    
    this.contains = function(val) {
        return map.hasOwnProperty(val);
    };
    
    this.add = function(val) {
        map[val] = true;
    };

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function ordinal($number) {
    $ends = array('th','st','nd','rd','th','th','th','th','th','th');
    $mod100 = $number % 100;
    return $number . ($mod100 >= 11 && $mod100 <= 13 ? 'th' :  $ends[$number % 10]);
}

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/* ***** BEGIN LICENSE BLOCK *****
 * Distributed under the BSD license:
 *
 * Copyright (c) 2010, Ajax.org B.V.
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.