11 lines
177 B
JavaScript
11 lines
177 B
JavaScript
export default function contains(root, n) {
|
|
var node = n;
|
|
while (node) {
|
|
if (node === root) {
|
|
return true;
|
|
}
|
|
node = node.parentNode;
|
|
}
|
|
|
|
return false;
|
|
} |