如何通过使用import { createAppContainer, createSwitchNavigator, createStackNavigator } from "react-navigation";
import Splash from '../screens/Splash/Splash';
import Signin from '../screens/Signin/Signin';
import HomeScreen from '../screens/Home/HomeScreen';
import Profile from '../screens/Profile/Profile';
const HomeNavigator = createStackNavigator({
Profile: Profile,
HomeScreen: HomeScreen,
},
{
initialRouteName: 'HomeScreen'
}
);
const SigninNavigator = createSwitchNavigator({
Home: HomeNavigator,
Signin: Signin,
}, {
initialRouteName: 'Signin'
},
);
export const MainScreenNavigation = createAppContainer(createSwitchNavigator({
Main: SigninNavigator,
Splash: Splash,
}, {
initialRouteName: 'Splash'
},
)
);
d3.js绑定函数来实现这种行为？
.data()答案 0 :(得分：2)
看看d3.zip
var data = [[1,2,3],['a','b','c'],['x','y','z']];
var zippedData = d3.zip.apply(null, data);
console.log(zippedData);<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>