8 lines
170 B
JavaScript
8 lines
170 B
JavaScript
module.exports = function(parent, child) {
|
|
let node = child.parentNode;
|
|
while (node) {
|
|
if (node == parent) return true;
|
|
node = node.parentNode;
|
|
}
|
|
return false;
|
|
}
|