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function add(a, b) {
  return a + b;
}

let number = add(2, 2);

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function tokenExpired(token, currentDate) {
  return token.expirationDate < currentDate;
}

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test('tokenExpired', () => {
  const token = { token: '123-abc-123', expirationDate: new Date('2018-01-01T12:00:00.000Z') };
  const timeBeforeTokenExpiration = new Date('2018-01-01T11:59:00.000Z');
  const timeAfterTokenExpiration = new Date('2018-01-01T12:01:00.000Z');
  
  expect(tokenExpired(token, timeBeforeTokenExpiration)).toBe(false);
  expect(tokenExpired(token, timeAfterTokenExpiration)).toBe(true);
});

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router.post('/:id/title-image', (req, res, next) => {

    lwip.open(req.file.buffer, 'jpg', (err, image) => {
        if (err) { next(err); return; }
        let ratio = (image.width() > 960 ? (960 / image.width()) : 1);
        image.scale(ratio, (err, image) => {
            if (err) { next(err); return; }
            image.crop(image.width(), Math.min((image.width() / 2), image.height()), (err, image) => {
                if (err) { next(err); return; }
                image.toBuffer('jpg', { quality: 80 }, (err, buffer) => {

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<div *ngFor="let hero of heroes">{{hero.name}}</div>
<input #heroInput> {{heroInput.value}}

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const add = (a, b) => a + b;
const sum = array => array.reduce(add, 0);

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const EmployeesTable = ({ employees }) => (
  <table>
    <tr><th>Name</th><th>Position</th></tr>
    {employees.map(
      ({ name, position }) => <tr><td>{name}</td><td>{position}</td></tr>
    )}
  </table>
);

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<Surface width={surfaceWidth} height={surfaceHeight} left={0} top={0}>
    <Image style={imageStyle} src='...' />
    <Text style={textStyle}>
       Here is some text below an image.
    </Text>
</Surface>

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{
  optimization: {
    splitChunks: {
      cacheGroups: {
        vendors: {
          test: /[\\/]node_modules[\\/]/,
          name: 'vendors',
          chunks: 'all',
        }
      }

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import * as React from 'react';
import { createRoute } from 'router-8000';
import { LandingViewContainer } from 'views/landing/container';

function getRouteComponent(): JSX.Element {
  return <LandingViewContainer />;
}

createRoute('/', getRouteComponent);