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hasClass.ts
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hasClass.ts
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/*
* Copyright 2019 LABOR.digital
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Last modified: 2019.06.14 at 17:09
*/
import {forEach} from '../Lists/forEach';
import {isObject} from '../Types/isObject';
import {testFlags} from '../util';
import {hasClassList} from './util';
/**
* Returns true if the given element has the given class name
* @param element A single html element to check if it has a given class
* @param classes The space-separated list of classes to remove from the element
*/
export function hasClass(element: HTMLElement, classes: string): boolean
{
if (isObject(element)) {
let state = true;
let elClasses: Array<string>;
classes = classes.trim();
if (classes === '') {
return false;
}
forEach(classes.split(' '), c => {
if (c.trim() === '') {
return;
}
if (hasClassList && !testFlags.noClassList) {
if (!element.classList.contains(c)) {
state = false;
return false;
}
} else {
elClasses = elClasses ?? classes.split(' ');
if (elClasses.indexOf(c) === -1) {
state = false;
return false;
}
}
});
return state;
}
return false;
}