7 examples of 'classlist contains' in JavaScript

112
function hasClass(element, className) {
113
    if (element.classList) {
114
        return element.classList.contains(className);
115
    } else {
116
        return (' ' + element.className + ' ').indexOf(' ' + className + ' ') >
117
            -1;
118
    }
119
}

33
export function hasClass(el: Element, className: string): boolean {
34
  return el.classList.contains(className);
35
}

1
export function removeFromElementClassIfContains(element, className) {
2
    const classList = element.classList;
3
    if (classList.contains(className)) {
4
        classList.remove(className);
5
    }
6
}

13
static includes(className: string): ?boolean {
14
    if (!document.body) {
15
        return null
16
    }
17
    return document.body.classList.contains(className)
18
}

66
export function hasClass(element: HTMLElement, className: string): boolean {
67
  if (element.classList) {
68
    return element.classList.contains(className);
69
  } else {
70
    return (element.className.split(" ").indexOf(className) >= 0);
71
  }
72
}

14
function hasClass(el, className) {
15
  if (el.classList) return el.classList.contains(className);
16
  else
17
    return !!el.className.match(new RegExp("(\\s|^)" + className + "(\\s|$)"));
18
}

434
hasClass (eleObj, className) {
435
    return eleObj.classList.contains(className);
436
}