pinyin

import {Maybe} from './Maybe'

describe('Maybe', ()=> {
    const nothing = Maybe.Nothing
    const just = Maybe.Just(1)

    describe('Nothing', ()=> {
        it('should not be exist', ()=> {
            expect(nothing.exists).to.equal(false)
        })

pinyin

import * as ReactDOM from 'react-dom'
import * as React from 'react'

export class Component extends React.Component {
    render() {
        return <div style={{cursor: 'pointer', userSelect: 'none'}}
                    onClick={()=> this.clicked()}>
            This text is clicked {this.state.count} times.
        </div>
    }

pinyin

void main() {
  final func = Callable((a)=> print(a));
  func('a');
}

class Callable {
  Function func;
  
  @override
  noSuchMethod(invocation) {