Gantt APIMethodsisLinkExistsOn this pageisLinkExists Description Checks whether the specified link exists isLinkExists: (id: string | number) => booleanParameters id - (required) string | number - the link id Returns link - (boolean) - true, if such a link exists. Otherwise, false Examplegantt.addLink({ id:1, source:1, target:2, type:1});gantt.isLinkExists(1); // ->true