react-native-ios

I am trying to validate a users email, by checking it against an expression. But the result i am getting is invalid for all the entries. UPDATED CODE class dummytest extends Component{ constructor(props){ super(props); this.state = { email :'', validated: false , } }; go = () => { const reg = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/; if (reg.test(this.state.email) === true){ alert( valid); } else{ alert(); } } render(){ return( <View style={{alignSelf:'center',marginTop:100}}> <TextInput autoCapitalize="none" autoCorrect={false} style={{height:20,width:200,backgroundColor:'blue'}} value

I have run react-native start in one terminal, and then react-native ios-run in another. My initial console.log rarely show, sometimes they do. Lot's of times, randomly I do see: LOG MESSAGE QUOTA EXCEEDED - SOME MESSAGES FROM THIS PROCESS HAVE BEEN DISCARDED Are my console.log 's being discarded? I tried clearing the console to see it more clearly but I can't find a way to clear console either. On Android, I wouldn't have issue with missing console.log . react-native logs information using syslog daemon. This daemon attempts to prevent spamming to the log (DoS attack). These limits are set on

How to exit application with twice clicking the back button without needing Redux I was looking for a solution to limit the user and do not get out of the application with one click in react native. Mahdi Bashirpour import React, {Component} from 'react'; import {BackHandler, View, Dimensions, Animated, TouchableOpacity, Text} from 'react-native'; let {width, height} = Dimensions.get('window'); export default class App extends Component<Props> { state = { backClickCount: 0 }; constructor(props) { super(props); this.springValue = new Animated.Value(100); } componentWillMount() { BackHandler

I need to check Internet connection in react native iOS I would try following code: NetInfo.isConnected.fetch().then(isConnected => { console.log(isConnected); }); that can work fine in react native android application, But it always return 'false' in react native iOS . Moti Azu There is currently an open issue about this in react native's github . You can see the discussion there, but in short - the fetch is always returning false , but you can work around it by listening to the connection changed event. Code example from there: componentDidMount() { NetInfo.isConnected.addEventListener(

I am trying to Implement AWS-IoT(device) using React-Native. I have used the packages, 1) aws-iot-device-sdk-js 2) react-native-aws-iot-device-shadows and got a lot of errors while using the package. I could debug few, but did not get expected results. I am Implementing AWS-IoT for Chatting application. I am successfully creating an IoT session using REST APIs and get these as responses iotEndpoint, region, accessKey, secretKey, sessionToken . But using these credentials I am unable to Connect using the above packages. I figured this out, Step 1: Install aws-iot npm package npm install --save

So I tried implementing Facebook Login and followed all the steps accordingly. After having errors with FBSDKcorekit/FBSDKcorekit.h' file not found , I decided to pivot over to working on other components. Lo' and behold, I have this error giving me trouble now. I followed along with this video: https://www.youtube.com/watch?v=rAXVKapP5cM&t=458s where I used the react-native install react-native-fbsdk and react-native link react-native-fbsdk commands in my terminal. If it helps, I'm getting the following compile error in my terminal: The following build commands failed: CompileC /Users