0
214clearMenuItemMouseLeaveTimer() {
const props = this.props;
let callFn;
const parentMenu = props.parentMenu;
if (parentMenu.menuItemMouseLeaveTimer) {
clearTimeout(parentMenu.menuItemMouseLeaveTimer);
parentMenu.menuItemMouseLeaveTimer = null;
if (callFn && parentMenu.menuItemMouseLeaveFn) {
parentMenu.menuItemMouseLeaveFn();
}
parentMenu.menuItemMouseLeaveFn = null;
}
},上面申明了 callFn，为什么下面会有个 if 语句里面有 callFn 呢，好像没有被赋值呀？
源码地址：
https://github.com/react-comp...
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