egirlskey/src/client/app/common/scripts/contains.ts
2018-03-29 20:32:18 +09:00

8 lines
164 B
TypeScript

export default (parent, child) => {
let node = child.parentNode;
while (node) {
if (node == parent) return true;
node = node.parentNode;
}
return false;
};