Function toggleKey

packages/react-stately/src/toggle/useToggleGroupState.ts:79–93

(key)

    selectedKeys,
    setSelectedKeys,
    toggleKey(key) {
      let keys: Set<Key>;
      if (selectionMode === 'multiple') {
        keys = new Set(selectedKeys);
        if (keys.has(key) && (!disallowEmptySelection || keys.size > 1)) {
          keys.delete(key);
        } else {
          keys.add(key);
        }
      } else {
        keys = new Set(selectedKeys.has(key) && !disallowEmptySelection ? [] : [key]);
      }

      setSelectedKeys(keys);
    },
    setSelected(key, isSelected) {
      if (isSelected !== selectedKeys.has(key)) {
        this.toggleKey(key);