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| var log = function() { console.log.apply(console, arguments) }
var e = function(selector) { return document.querySelector(selector) }
var es = function (selector) { return document.querySelectorAll(selector) }
var appendHtml = function(element, html) { element.insertAdjacentHTML('beforeend', html) }
var bindEvent = function(element, eventName, callback) { element.addEventListener(eventName, callback) }
var toggleClass = function(element, className) { if (element.classList.contains(className)) { element.classList.remove(className) } else { element.classList.add(className) } }
var removeClassAll = function(className) { var selector = '.' + className var elements = document.querySelectorAll(selector) for (var i = 0; i < elements.length; i++) { var e = elements[i] e.classList.remove(className) } }
var bindAll = function(selector, eventName, callback) { var elements = document.querySelectorAll(selector) for(var i = 0; i < elements.length; i++) { var e = elements[i] bindEvent(e, eventName, callback) } }
var find = function(element, selector) { return element.querySelector(selector) }
var closestClass = function(element, className) { var e = element while (e != null) { if (e.classList.contains(className)) { return e } else { e = e.parentElement } } }
var closestId = function(element, idName){
var e = element while (e != null) { if (e.id == idName) { return e } else { e = e.parentElement } } }
var closestTag = function(element, tagName){
var e = element while (e != null) { if (e.tagName.toUpperCase() == idName.toUpperCase()) { return e } else { e = e.parentElement } } }
var closest = function(element, selector){
var flag = selector[0] if (flag == '.') { var className = selector.slice(1) return closestClass(element, className) } else if (flag == '#') { var idName = selector.slice(1) return closestId(element, idName) } else { var tag = selector return closestId(element, tag) } }
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