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Alert.alert(
"Alert Title",
"My Alert Msg",
[
{
text: "Cancel",
onPress: () => console.log("Cancel Pressed"),
style: "cancel"
},
{ text: "OK", onPress: () => console.log("OK Pressed") }
]
);
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import React, { useState } from "react";
import { View, StyleSheet, Button, Alert } from "react-native";
const App = () => {
const createTwoButtonAlert = () =>
Alert.alert(
"Alert Title",
"My Alert Msg",
[
{
text: "Cancel",
onPress: () => console.log("Cancel Pressed"),
style: "cancel"
},
{ text: "OK", onPress: () => console.log("OK Pressed") }
]
);
const createThreeButtonAlert = () =>
Alert.alert(
"Alert Title",
"My Alert Msg",
[
{
text: "Ask me later",
onPress: () => console.log("Ask me later pressed")
},
{
text: "Cancel",
onPress: () => console.log("Cancel Pressed"),
style: "cancel"
},
{ text: "OK", onPress: () => console.log("OK Pressed") }
]
);
return (
<View style={styles.container}>
<Button title={"2-Button Alert"} onPress={createTwoButtonAlert} />
<Button title={"3-Button Alert"} onPress={createThreeButtonAlert} />
</View>
);
}
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import React, { useState } from 'react';
import { View, StyleSheet, Button, Alert } from 'react-native';
const App = () => {
const createTwoButtonAlert = () =>
Alert.alert('Alert Title', 'My Alert Msg', [
{
text: 'Cancel',
onPress: () => console.log('Cancel Pressed'),
style: 'cancel',
},
{ text: 'OK', onPress: () => console.log('OK Pressed') },
]);
const createThreeButtonAlert = () =>
Alert.alert('Alert Title', 'My Alert Msg', [
{
text: 'Ask me later',
onPress: () => console.log('Ask me later pressed'),
},
{
text: 'Cancel',
onPress: () => console.log('Cancel Pressed'),
style: 'cancel',
},
{ text: 'OK', onPress: () => console.log('OK Pressed') },
]);
return (
<View style={styles.container}>
<Button title={'2-Button Alert'} onPress={createTwoButtonAlert} />
<Button title={'3-Button Alert'} onPress={createThreeButtonAlert} />
</View>
);
};
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'space-around',
alignItems: 'center',
},
});
export default App;
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// Works on both Android and iOS
Alert.alert(
'Alert Title',
'My Alert Msg',
[
{text: 'Ask me later', onPress: () => console.log('Ask me later pressed')},
{
text: 'Cancel',
onPress: () => console.log('Cancel Pressed'),
style: 'cancel',
},
{text: 'OK', onPress: () => console.log('OK Pressed')},
],
{cancelable: false},
);
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function getCardType (number) {
const numberFormated = number.replace(/\D/g, '')
var patterns = {
VISA: /^4[0-9]{12}(?:[0-9]{3})?$/,
MASTER: /^5[1-5][0-9]{14}$/,
AMEX: /^3[47][0-9]{13}$/,
ELO: /^((((636368)|(438935)|(504175)|(451416)|(636297))\d{0,10})|((5067)|(4576)|(4011))\d{0,12})$/,
AURA: /^(5078\d{2})(\d{2})(\d{11})$/,
JCB: /^(?:2131|1800|35\d{3})\d{11}$/,
DINERS: /^3(?:0[0-5]|[68][0-9])[0-9]{11}$/,
DISCOVERY: /^6(?:011|5[0-9]{2})[0-9]{12}$/,
HIPERCARD: /^(606282\d{10}(\d{3})?)|(3841\d{15})$/,
ELECTRON: /^(4026|417500|4405|4508|4844|4913|4917)\d+$/,
MAESTRO: /^(5018|5020|5038|5612|5893|6304|6759|6761|6762|6763|0604|6390)\d+$/,
DANKORT: /^(5019)\d+$/,
INTERPAYMENT: /^(636)\d+$/,
UNIONPAY: /^(62|88)\d+$/,
}
for (var key in patterns) {
if (patterns[key].test(numberFormated)) {
return key
}
}
}
console.log(getCardType("4539 5684 7526 2091"))
Run code snippet