kweij

let previousScrollY = 0;

$(document).on('show.bs.modal', () => {
    previousScrollY = window.scrollY;
    $('html').addClass('modal-open').css({
        marginTop: -previousScrollY,
        overflow: 'hidden',
        left: 0,
        right: 0,
        top: 0,

jscher2000

// For Firefox's Web Console, creates the functions showAsPrint() and undoShowAsPrint()
// to roughly emulate print media and revert
function showAsPrint(){
	var docSS = document.styleSheets, ss, oldMedia, newMedia, rules;
	var p2s = function(media){
		if (media.indexOf('all') > -1) return media; //no need to change
		if (media == 'print') return 'all, wasprint'; //show on screen, too
		if (media.indexOf('print') > -1 && media.indexOf('screen') > -1) return media; //no need to change
		if (media == 'screen') return 'wasscreen'; //hide these rules
		if (media.indexOf('screen') > -1) return media.replace('screen', 'wasscreen'); //hide these rules

joyrexus

Sans jQuery

Events

// jQuery
$(document).ready(function() {
  // code
})

gregseth

Complete version

(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\ x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])

Simpler version

[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?

Sources