4 examples of 'add multiple classes javascript' in JavaScript

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19function addJsClass(el) {
20 var classes = document.body.className.split(" ");
21 classes.push("js");
22 document.body.className = classes.join(" ");
23}
96addClassName(className)
97{
98 if (this._classNames.includes(className))
99 return;
100
101 this._classNames.push(className);
102
103 if (this._listItemNode)
104 this._listItemNode.classList.add(className);
105}
395value: function addClasses(classes) {
396 var _this = this;
397
398 classes.forEach(function (className) {
399 _this.element.classList.add(className);
400 });
401}
23public add(...classNames: string[]): void {
24 const attr = this.ownerElement.getAttribute('class');
25 const list = attr ? attr.split(' ') : [];
26 for (const className of classNames) {
27 if (!list.includes(className)) {
28 list.push(className);
29 }
30 }
31 this.ownerElement.setAttribute('class', list.join(' '));
32}

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