javascript Check if an element is a descendant of another
const isDescendant = (child, parent) => parent.contains(child);javascript Check if an element is a descendant of another
const isDescendant = (child, parent) => parent.contains(child);javascript node has parent with class
/**
* If the element/node ('child') has the class 'classname' => return true
* Else: call the function again with parent until parent with class is found or no parent is left
*/
function hasParentClass(child, classname){
if(child.className.split(' ').indexOf(classname) >= 0) return true;
try{
//Throws TypeError if child doesn't have parent any more
return child.parentNode && hasParentClass(child.parentNode, classname);
}catch(TypeError){
return false;
}
}Copyright © 2021 Codeinu
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