10 examples of 'jquery child with class' in JavaScript

45
function parentWithClass(elem, classNames) {
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    // accept both string and array passed in
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    if (!Array.isArray(classNames)) {
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        classNames = [classNames];
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    }
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    while (!elem.classList || !containsAnyClass(elem.classList, classNames)) {
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        elem = elem.parentNode;
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        if (!elem) {
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            return null;
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        }
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    }
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    return elem;
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}

124
export function addClsToFirstChild(element, className) {
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  var dom = getDom(element);
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  if (dom.firstElementChild) {
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    dom.firstElementChild.classList.add(className);
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  }
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}

6
function hasParentWithClassName (el, className) {
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  while (el && el.parentNode) {
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    if (el.classList.contains(className)) {
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      return true
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    }
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    el = el.parentNode
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  }
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  return false
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}

69
function findParentWithClass(element, parentClass) {
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	var parent = element.parentNode;
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	while (!$j(parent).hasClass(parentClass)) {
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		parent = parent.parentNode;
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	}
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	return parent;
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}

221
export function addClass(elem, className) {
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    // Check if there is an element and
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	// a Class Name given
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	if( !elem || !className ) return null;
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	// Check if it is a list of elements
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	if( elem.length > 1 ) {
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		// Run through the list and add
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		// Class Name to all of them
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		for( var i=0, max=elem.length; i<max; i++ ) {
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			addClass( elem[i], className );
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		}
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		// Extend all Elements and return it
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		return elem;
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	} else {
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		// Check if browser supports classList
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		// Jep: Add it to classList
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		// Nope: Add it as string
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		if( !!elem.classList ) {
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			elem.classList.add( className );
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		} else if( !hasClass( elem, className ) ) {
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			elem.className += " " + className;
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		}
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		// return the extended Element
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		return elem;
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	}
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}

99
function findParent ($elt, className) {
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    while ($elt) {
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        if ($elt.hasClass(className))
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            return $elt;
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        $elt = $elt.parent();
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    }
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    return null;
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}

45
function JQueryClosestByClass(element, clazz) {
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  while (element) {
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    if (JQueryHasClass(element, clazz)) {
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      return element;
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    }
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    element = element.parentNode;
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  }
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  return null;
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}

8
function hasClass(elem, className) {
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    return new RegExp(' ' + className + ' ').test(' ' + elem.className + ' ');
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}

69
function findParentWithClass(element, parentClass) {
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	var parent = element.parentNode;
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	while (!$(parent).hasClass(parentClass)) {
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		parent = parent.parentNode;
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	}
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	return parent;
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}

13
function toggleClass(elem, className) {
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    var newClass = ' ' + elem.className.replace(/[\t\r\n]/g, ' ') + ' ';
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    if(hasClass(elem, className)) {
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        while(newClass.indexOf(' ' + className + ' ') >= 0) {
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            newClass = newClass.replace(' ' + className + ' ', ' ');
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        }
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        elem.className = newClass.replace(/^\s+|\s+$/g, '');
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    } else {
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        elem.className += ' ' + className;
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    }
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}