10 examples of 'getelementbyclass' in JavaScript

17
function getParentByClass(el, className) {
18
  do {
19
    if (el.classList.contains(className)) {
20
      return el;
21
    } else {
22
      el = el.parentNode;
23
    }
24
  } while (el && el.parentNode)
25
}

580
Video.prototype.getElementByClass = function getElementByClass(className) {
581
  return this.element.getElementsByClassName(className)[0];
582
};

57
export function findElementParentByClassName(element, className, includeSelf) {
58
  let el;
59
  if (includeSelf === false) {
60
    el = element.parentElement;
61
  } else {
62
    /** @type {HTMLElement} */
63
    el = (element);
64
  }
65
  while (el != null && !el.classList.contains(className)) {
66
    el = el.parentElement;
67
  }
68
  return el;
69
}

31
function hasClass(element, clazz) {
32
    return (` ${element.className} `).indexOf(` ${clazz} `) > -1;
33
}

394
value: function findAncestorByClass(el, className) {
395
  while ((el = el.parentElement) && !el.classList.contains(className)) {
396
    ;
397
  }
398
399
  return el;
400
}

81
function findParent(inEl: Element, className: string): ?Element {
82
  var el = inEl;  // this is for Flow.
83
  do {
84
    if (el.classList.contains(className)) return el;
85
    el = el.parentElement;
86
  } while (el);
87
  return null;
88
}

45
function JQueryClosestByClass(element, clazz) {
46
  while (element) {
47
    if (JQueryHasClass(element, clazz)) {
48
      return element;
49
    }
50
    element = element.parentNode;
51
  }
52
  return null;
53
}

154
function addClass(element_id, classname) {
155
  document.getElementById(element_id).className += (" " + classname);
156
}

12
export function queryElementsByClass(
13
  selectors: string,
14
  parentNode = document
15
): any {
16
  return parentNode.getElementsByClassName(selectors);
17
}

2296
function addClassName(element, className) {
2297
  if (!(element = $(element))) return;
2298
2299
  if (!hasClassName(element, className))
2300
    element.className += (element.className ? ' ' : '') + className;
2301
2302
  return element;
2303
}