// 判断子项是否被选中 function isArray (array) { return array instanceof Array; } function isActive (activeList, itemId) { if (typeof activeList === 'undefined' || activeList == null) return false; if (isArray(activeList)) { return activeList.indexOf(itemId) > -1; } else { return activeList === itemId; } } module.exports.isActive = isActive; {{ item.text }} {{ item.text }}