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content = content
    // Replace hypen, if between number, with en-dash
    .replace(/(\d+)-(\d+)/ig, '$1–$2')
    
    // Replace hypen, if between spaces, with em-dash
    .replace(/( +)-+( +)/ig, '$1—$2')
    
    // Replace smart double quotes with straight double quotes
    .replace(/“|”|„|‟|″|‶/ig, '"')
    

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// Source: http://stackoverflow.com/a/13455920/2502532
// -------------------------------------------------------------------
// Add prototype for 'window.location.query([source])' which contain an object
// of querystring keys and their values
// -------------------------------------------------------------------
if(!window.location.query) {
    window.location.query = function(source){
        var map = {};
        source = source || this.search;

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/* Based on: http://stackoverflow.com/a/901144/2502532 */
var getParam = function(key) {
  key = key.replace(/[\[]/, '\\[').replace(/[\]]/, '\\]');
  var val = window.location.search.match(new RegExp('[\\?&]' + key + '=([^&#]*)'));
  return val === null ? '' : decodeURIComponent(val[1].replace(/\+/g, ' '));
};

console.log(getParam('foo'));

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Layered Event Listeners

Detect user events on obscured elements.

A Pen by Gerald on CodePen.

License.

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<div class="button-list namespace">
  <h2>$('selector').tooltip()</h2>
  <ul>
    <li>
      <span>Lorem Ipsum Dolar Sit</span>
      <button type="button">+
        <span class="tooltip" role="tooltip">Hello World again and again and again and again.</span>
      </button>
    </li>
    <li>

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Use of :not() in delegated event

Proof that using :not() in event delegation is honored, but doesn't prevent bubbling and thus potentially triggering the handler multiple times.

A Pen by Gerald on CodePen.

License.

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jQuery plugin: $().removeClassExcept()

Extend jQuery with $().removeClassExcept(); Removes all classes except those specified. Use as an alternative to .removeClass() when you only want to specify (or only know) which classes you want to keep.

A Pen by Gerald on CodePen.

License.

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Detect Collision

In response to: http://stackoverflow.com/questions/29916874/can-you-tell-if-one-element-is-touching-another-using-javascript

A Pen by Gerald on CodePen.

License.

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/* Define new prototype methods on Date object. */
// Returns Date as a String in YYYY-MM-DD format.
Date.prototype.toISODateString = function () {
  return this.toISOString().substr(0,10);
};

// Returns new Date object offset `n` days from current Date object.
Date.prototype.toDateFromDays = function (n) {
  n = parseInt(n) || 0;
  var newDate = new Date(this.getTime());

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Math.isPrime = function (n) {
    if (n === 2) { return true; }
    if (n % 2 === 0) { return false; }
    for(let i = 3, s = Math.sqrt(n); i <= s; i += 2) {
        if (n % i === 0) { return false; }
    }
    return n !== 1;
};

// Based on this StackOverflow answer: https://stackoverflow.com/a/40200710/2502532