JavaScript Environment · React Native

promise.catch(function() {...});

<C onPress={() => this.setState({pressed: true})} />

let greeting = 'hi';

Math.max(...array);

class C extends React.Component {render() { return <View />; }}

const key = 'abc'; const obj = {[key]: 10};

const answer = 42;

const {isActive, style} = this.props;

for (var num of [1, 2, 3]) {...};

let number = x => x;

const b = 0b11; const o = 0o7; const u = 'Hello\u{000A}\u{0009}!';

import {Component} from 'react';

const obj = {method() { return 10; }};

const name = 'vjeux'; const obj = {name};

function test(x = 'hello', {a, b}, ...args) {}

function(type, ...args) {};

const o = {a, b, c};

const a = /o+/y;

const who = 'world'; const str = `Hello ${who}`;

const string = 'foo💩bar'; const match = string.match(/foo(.)bar/u);

let x = 10 ** 2;

async function doStuffAsync() {const foo = await doOtherStuffAsync();};

function f(a, b, c,) {};

const extended = {...obj, a: 10};

try {throw 0; } catch { doSomethingWhichDoesNotCareAboutTheValueThrown();}

const package = await import('package'); package.function()

const foo = object.foo ?? 'default';

const name = obj.user?.name;

class Bork {static a = 'foo'; static b; x = 'bar'; y;}

export v from 'mod';

template(`const %%importName%% = require(%%source%%);`);

function foo(x: ?number): string {};

export default 42;

<View style={{color: 'red'}} />

Object.assign(a, b);

const bar = createReactClass({});

function foo(x: {hello: true, target: 'react native!'}): string {};