let elem = document.createElement('div');
|
elem.classList.toggle('test-class', false);
|
if (elem.classList.contains('test-class')) {
|
let _toggle = DOMTokenList.prototype.toggle;
|
DOMTokenList.prototype.toggle = function(token, force) {
|
if (arguments.length > 1 && !this.contains(token) === !force) {
|
return force;
|
} else {
|
return _toggle.call(this, token);
|
}
|
};
|
}
|
|
if (!String.prototype.startsWith) {
|
String.prototype.startsWith = function(searchString, position){
|
position = position || 0;
|
return this.substr(position, searchString.length) === searchString;
|
};
|
}
|
|
if (!String.prototype.endsWith) {
|
String.prototype.endsWith = function(searchString, position) {
|
var subjectString = this.toString();
|
if (typeof position !== 'number' || !isFinite(position) || Math.floor(position) !== position || position > subjectString.length) {
|
position = subjectString.length;
|
}
|
position -= searchString.length;
|
var lastIndex = subjectString.indexOf(searchString, position);
|
return lastIndex !== -1 && lastIndex === position;
|
};
|
}
|
|
if (!Array.prototype.find) {
|
Object.defineProperty(Array.prototype, "find", {
|
value: function(predicate) {
|
if (this === null) {
|
throw new TypeError('Array.prototype.find called on null or undefined');
|
}
|
if (typeof predicate !== 'function') {
|
throw new TypeError('predicate must be a function');
|
}
|
var list = Object(this);
|
var length = list.length >>> 0;
|
var thisArg = arguments[1];
|
var value;
|
|
for (var i = 0; i < length; i++) {
|
value = list[i];
|
if (predicate.call(thisArg, value, i, list)) {
|
return value;
|
}
|
}
|
return undefined;
|
}
|
});
|
}
|
|
document.addEventListener("DOMContentLoaded", function() {
|
// Disable resizing in Firefox
|
document.execCommand("enableObjectResizing", false, false);
|
// Disable automatic linkifying in IE11
|
document.execCommand("autoUrlDetect", false, false);
|
});
|
