How to use coffeescript - 10 common examples

export function preprocessSource({ filename, contents }, pluginOptions) {
  // Don't need to account for ES6, Babylon can parse it.
  if (CJSX.test(filename)) {
    return compile(transform(contents), pluginOptions)
  } else if (COFFEE.test(filename)) {
    return compile(contents, pluginOptions)
  } else return null
}

export function preprocessSource({ filename, contents }, pluginOptions) {
  // Don't need to account for ES6, Babylon can parse it.
  if (CJSX.test(filename)) {
    return compile(transform(contents), pluginOptions)
  } else if (COFFEE.test(filename)) {
    return compile(contents, pluginOptions)
  } else return null
}

require('coffeescript').register();

const _ = require('lodash');
const nodeUtil = require('util');

db = require('../../heap/back/db');
testUtil = require('../../heap/test/util');

const HEAP_ENV_ID = '2084764307';

const waitIfIos = async () => {
  if (device.getPlatform() === 'ios') {
    // :HACK: Break up long URL.
    // :TODO: Remove once pixel endpoint is handling larger events again.
    console.log('Waiting 15s to flush iOS events.');
    await new Promise(resolve => setTimeout(resolve, 15000));
  }

async transform({asset, options}) {
    let sourceFileName: string = relativeUrl(
      options.projectRoot,
      asset.filePath,
    );

    asset.type = 'js';
    let output = coffee.compile(await asset.getCode(), {
      filename: sourceFileName,
      sourceMap: options.sourceMaps,
    });

    // return from compile is based on sourceMaps option
    if (options.sourceMaps) {
      asset.setCode(output.js);
      asset.setMap(await SourceMap.fromRawSourceMap(output.v3SourceMap));
    } else {
      asset.setCode(output);
    }

    return [asset];
  },
});

return uncompiled => {
        const comp = require('coffeescript');
        const compiled = comp.compile('0 || (' + uncompiled + ')');
        // Strip out coffeescript scoping wrapper to get translated condition
        const re = /\(function\(\) {\s*0 \|\| \((.*)\);\n\n\}\)\.call\(this\);/;
        const match = re.exec(compiled);
        if (match && match.length > 1) {
          return match[1].trim();
        } else {
          throw new Error('Compilation Error for: ' + uncompiled);
        }
      };
    case 'es6':

require('coffeescript').register();

testUtil = require('../../heap/test/util');
rnTestUtil = require('./rnTestUtilities');

// This file is named funkily so that Mocha runs this first.  That way we
// don't lose the initial navigation event (each test flushes redis).

describe('Initial Navigation', () => {
  before(async () => {
    await device.launchApp();

    await expect(element(by.id('initialSentinel'))).toBeVisible();
    await element(by.id('initialSentinel')).tap();

    await rnTestUtil.pollForSentinel('Initial');
  });

require('coffeescript').register();
_ = require('lodash');
assert = require('should/as-function');

nodeUtil = require('util');
testUtil = require('../../heap/test/util');
rnTestUtil = require('./rnTestUtilities');
packageJson = require('../package.json');

const BASICS_PAGE_TOP_HIERARCHY =
  '@AppContainer;|@App;|@Provider;|@withReactNavigationAutotrack(NavigationContainer);|@NavigationContainer;|@Navigator;|@NavigationView;|@TabNavigationView;|@ScreenContainer;|@ResourceSavingScene;[key=Basics];|@SceneView;|@Connect(BasicsPage);|@BasicsPage;|@ScrollView;[testID=scrollContainer];|';

const SDK_VERSION = packageJson.version;
assert.exist(SDK_VERSION);

const doTestActions = async () => {
  // Open the Basics tab in the tab navigator.

require('coffeescript').register();
_ = require('lodash');
assert = require('should/as-function');

testUtil = require('../../heap/test/util');
rnTestUtil = require('./rnTestUtilities');

const delay = async () => {
  await new Promise(resolve => setTimeout(resolve, 500));
};

const doTestActions = async () => {
  // Open the PropExtraction tab in the tab navigator.
  await element(by.id('Nav')).tap();

  await expect(element(by.id('navigate_stack'))).toBeVisible();
  await element(by.id('navigate_stack')).tap();

require('coffeescript').register();
_ = require('lodash');
assert = require('should/as-function');

testUtil = require('../../heap/test/util');
rnTestUtil = require('./rnTestUtilities');

const IOS_BUTTON_SUFFIX = 'TouchableOpacity;';
const ANDROID_BUTTON_SUFFIX = 'TouchableNativeFeedback;';

const PROPEXTRACTION_PAGE_TOP_HIERARCHY =
  'AppContainer;|App;|Provider;|withReactNavigationAutotrack(NavigationContainer);|NavigationContainer;|Navigator;|NavigationView;|TabNavigationView;|ScreenContainer;|ResourceSavingScene;[key=PropExtraction];|SceneView;|PropExtraction;|';

const doTestActions = async () => {
  // Open the PropExtraction tab in the tab navigator.
  await element(by.id('PropExtraction')).tap();

const _ = require('lodash')

let COFFEE_SCRIPT_AVAILABLE = false
let LIVE_SCRIPT_AVAILABLE = false
let TYPE_SCRIPT_AVAILABLE = false

// Coffee is required here to enable config files written in coffee-script.
// It's not directly used in this file.
try {
  require('coffee-script').register()
  COFFEE_SCRIPT_AVAILABLE = true
} catch (e) {}

// CoffeeScript lost the hyphen in the module name a long time ago, all new version are named this:
try {
  require('coffeescript').register()
  COFFEE_SCRIPT_AVAILABLE = true
} catch (e) {}

// LiveScript is required here to enable config files written in LiveScript.
// It's not directly used in this file.
try {
  require('LiveScript')
  LIVE_SCRIPT_AVAILABLE = true
} catch (e) {}

try {
  require('ts-node').register()
  TYPE_SCRIPT_AVAILABLE = true
} catch (e) {}

class Pattern {