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classify.js
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82 lines (69 loc) · 1.92 KB
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/*
# Classify
# An extensible DOM utility for class helper functions
#
# Copyright © Softlayer, an IBM Company
# Code and documentation licensed under MIT
*/
/*
# Usage
# 1. classify.has(elem, "my-class") -> true/false
# 2. classify.add(elem, "my-new-class")
# 3. classify.remove(elem, "my-unwanted-class")
# 4. classify.toggle(elem, "my-class")
*/
(function(window) {
classReg = function(className) {
return new RegExp("(^|\\s+)" + className + "(\\s+|$)");
};
toggleClass = function(elem, c) {
fn = (hasClass(elem, c) ? removeClass : addClass);
fn(elem, c);
};
hasClass = void 0;
addClass = void 0;
removeClass = void 0;
if ("classList" in document.documentElement) {
hasClass = function(elem, c) {
return elem.classList.contains(c);
};
addClass = function(elem, c) {
elem.classList.add(c);
};
removeClass = function(elem, c) {
elem.classList.remove(c);
};
}
else {
hasClass = function(elem, c) {
return classReg(c).test(elem.className);
};
addClass = function(elem, c) {
if (!hasClass(elem, c)) {
elem.className = elem.className + " " + c;
}
};
removeClass = function(elem, c) {
elem.className = elem.className.replace(classReg(c), " ");
};
}
classify = {
hasClass: hasClass,
addClass: addClass,
removeClass: removeClass,
toggleClass: toggleClass,
has: hasClass,
add: addClass,
remove: removeClass,
toggle: toggleClass
};
if (typeof define === "function" && define.amd) {
define(classify);
}
else if (typeof exports === "object") {
module.exports = classify;
}
else {
window.classify = classify;
}
})(window);