it('should memoize with external cache', () => {
const cache: Cache<string, string> = {
get: (key: string) => key,
set: (key: string, value: string) => {},
has: (key: string) => true
};
const fn: string => string = _ => _.trim();
const memoizedFn1: string => string = memoize(
fn,
{ cache, serializer: () => '' }
);
})
import memoize from 'fast-memoize';
import {getPlaylistLessons} from '../playlists';
import {isLessonTranslated} from '../lessonFrontmatter';
/**
* Returns whether or not all lessons in the playlist is translated to the given language.
* @param {string} course E.g. 'scratch'
* @param {string} playlist E.g. 'playlist1'
* @param {string} language E.g. 'nb'
* @returns {boolean}
*/
export const areAllLessonsInPlaylistTranslated = memoize(
(course, playlist, language) => {
const lessons = getPlaylistLessons(course, playlist);
const lessonTranslatedReducer = (result, lesson) => result && isLessonTranslated(course, lesson, language);
return lessons.reduce(lessonTranslatedReducer, true);
}
);
it('should memoize', () => {
const fn: string => string = _ => _.trim();
const memoizedFn1: string => string = memoize(fn)
// $ExpectError
const memoizedFn2: number => number = memoize(fn)
})
* }
* lessons: ['scratchLesson1', 'scratchLesson2'],
* },
* ...
* },
* python: {
* ...
* }
* }
*/
const getData = memoize(
() => {
const playlists = {};
for (const key of playlistContext.keys()) {
const [/* ignore */, course, playlist] = key.match(/^[.][/]([^/]+)[/]playlists[/]([^.]+)[.]yml$/);
const {sortindex = 0, title = {}, lessons = []} = playlistContext(key);
assignDeep(playlists, [course, playlist], {sortindex, title, lessons});
}
return playlists;
}
);
/**
* Return all playlists for a course. The playlists are sorted.
* @param {string} course E.g. 'scratch'
* @return {string[]} An array with the (file)name of all the playlists (without extension),
* e.g. ['playlist1', 'playlist2']
*/
export const getPlaylistsForCourse = memoize(
(course) => {
const coursePlaylists = getData()[course] || {};
return [r, g, b, 1]
}
function parseRgbColor (color) {
color = color.match(/\d+\.?\d*/g)
var r = Number(color[0])
var g = Number(color[1])
var b = Number(color[2])
var a = Number(color[3])
return [r, g, b, a]
}
function parseColor (color) {
var result
if (color[0] === '#') {
result = parseHexColor(color)
} else if (color[0] === 'r') {
result = parseRgbColor(color)
} else {
throwError(`Wrong color format: ${color}`)
}
return result
}
export var parse = memoize(parseColor)
* ...
* }
*/
const getData = memoize(
() => {
const lessons = {};
for (const key of lessonFrontmatterContext.keys()) {
const [/* ignore */, course, lesson, file] = key.match(/^[.][/]([^/]+)[/]([^/]+)[/]([^.]+)[.]md$/);
if (isLesson(course, lesson)) {
const {
language, title = '', author = '', translator = '', external = ''
} = lessonFrontmatterContext(key);
if (!title) { console.warn('WARNING: The lesson', key, 'did not specify title.'); }
if (language) {
const isReadmeKey = file.startsWith('README') ? 1 : 0;
const path = `/${course}/${lesson}/${file}`;
const lessonData = {title, author, translator, external, path, key};
assignDeep(lessons, [course, lesson, language, isReadmeKey], lessonData);
} else {
console.warn('WARNING: The lesson', key, 'did not specify language, so lesson will not be used.');
}
} else {
console.warn(`WARNING: The lesson ${course}/${lesson}/${file} did not have a lesson.yml file, skipping...`);
}
}
return lessons;
}
);
/**
* Convert file (given course and lesson) to language and isReadme.
let io;
let extensionManager;
// Check for updates
fetch('http://registry.npmjs.org/nodecg/latest').then(res => {
return res.json(); // Download the body as JSON
}).then(body => {
if (semver.gt(body.version, pjson.version) >= 1) {
log.warn('An update is available for NodeCG: %s (current: %s)', JSON.parse(body).version, pjson.version);
}
}).catch(/* istanbul ignore next */() => {
// Discard errors.
});
const renderTemplate = memoize((content, options) => {
return template(content)(options);
});
module.exports = new EventEmitter();
module.exports.start = function () {
log.info('Starting NodeCG %s (Running on Node.js %s)', pjson.version, process.version);
// (Re)create Express app, HTTP(S) & Socket.IO servers
app = express();
if (global.sentryEnabled) {
app.use(Raven.requestHandler());
app.use(Raven.errorHandler());
}
* },
* python: {
* ...
* },
* ...
* }
*/
const getData = memoize(
() => {
const courses = {};
for (const key of courseFrontmatterContext.keys()) {
const [/* ignore */, course, file] = key.match(/^[.][/]([^/]+)[/](index[^.]*)[.]md$/);
const {title = '', external = '', language} = courseFrontmatterContext(key);
if (getAvailableLanguages().includes(language)) {
const path = `/${course}/${file}`;
const data = {title, external, path, key};
assignDeep(courses, [course, language], data);
} else {
console.warn(`The course info ${key} did not have a valid language (${language})`);
}
}
return courses;
}
);
/**
* Get the frontmatter of a course for a given language
* @param {string} course E.g. 'scratch'
* @param {string} language E.g. 'nb'
* @return {object} E.g. {title: 'Scratch', key: './scratch/index.md'}
*/
while (node) {
if (node.tagName) {
top = top + node.offsetTop;
left = left + node.offsetLeft;
node = node.offsetParent;
} else {
node = node.parentNode;
}
if (node === ancestor) {
node = null;
}
}
return [left, top];
};
/*
* Get prefixed or un-prefixed name of "transform" property
* in this browser.
*/
export const getTransformPropertyName = memoize(function () {
const prefixes = ['', 'webkit', 'moz', 'ms'];
for (let i = 0, ilen = prefixes.length; i < ilen; i++) {
const prefix = prefixes[i];
const propertyName = prefix + (prefix ? 'T' : 't') + 'ransform';
if (typeof body.style[propertyName] !== 'undefined') {
return propertyName;
}
}
});