Frederik Batuna freddi301
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| // alternative observables, knowledge about Observables implemetation is required (ex: RxJs) | |
| // this is fully type-annoteable (typescript, flowtype) | |
| // An observer is a function that takes an item from the stream | |
| // and must return a function that will be called with the next item in the stream | |
| // this way stateful observers can mantain state in clojures and every instance of them if replayable. | |
| // observers should not have side effects | |
| // type Observer<T> = (item: T) => Observer<T> |
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| // @flow | |
| /// as first we declare the contract our program will have with external world | |
| type v1Api = { | |
| getPerson(id: string): v1Person, | |
| addPerson(person: v1Person): void | |
| }; | |
| type v1Person = { id: string, name: string, age: number }; |
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| /* @flow */ | |
| const createPerson = ({}: { name: string, birth: Date, pets: number }): [] => [] | |
| const a = {}; | |
| //createPerson(a); | |
| const b = { ...a, name: 'fred' }; | |
| //createPerson(b); |
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| <html> | |
| <head> | |
| <style> | |
| .type-chars { | |
| font-family: monospace; | |
| font-size: 30px; | |
| } | |
| </style> | |
| </head> | |
| <body> |
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| Cache-Control: no-cache, no-store, must-revalidate | |
| Pragma: no-cache | |
| Expires: 0 |
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| #!/usr/bin/env bash | |
| set -e | |
| set -x | |
| COMMIT=$(git rev-parse master) | |
| TAG=$(git describe $(git rev-list --tags --max-count=1)) | |
| DATE=`date +%Y-%m-%d` | |
| mkdir -p doc-building |
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| const map = f => r => (m, i) => r(m, f(i)); | |
| const filter = p => r => (m, i) => (p(i) ? r(m, i) : m); | |
| function conc(m, i) { return m.concat(i); } | |
| [1, 2, 3].reduce( | |
| map(x => (console.log('map ' + x), x + x))( | |
| filter(x => (console.log('filter ' + x), x !== 4))(conc)), | |
| []); | |
| class S { |
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| const gistUser = process.argv[2]; if (!gistUser) { | |
| console.error('no gist user specified'); process.exit(1); } | |
| const destDir = process.argv[3] || './'; | |
| const exec = require('child_process').exec; | |
| const path = require('path'); | |
| exec(`curl -s https://api.github.com/users/${gistUser}/gists`, (e, so, se) => { | |
| gists = JSON.parse(so).map(gist => ({ | |
| folder: gist.description || gist.id, | |
| pull: gist.git_pull_url })); |
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| #!/bin/sh | |
| mkdir -p /etc/systemd/system/docker.service.d | |
| echo "[Service] | |
| Environment=\"HTTP_PROXY=http://10.215.2.2:8080/\" | |
| Environment=\"HTTPS_PROXY=https://10.215.2.2:8080/\""\ | |
| > /etc/systemd/system/docker.service.d/http-proxy.conf | |
| echo sudo systemctl daemon-reload |
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| import throng from 'throng'; | |
| import {MongoClient} from 'mongodb'; | |
| let dups = 0; | |
| async function insertOptimisticLoop(doc, collection, retry=100){ | |
| const cursor = await collection // find greatest __t progrssive number | |
| .find( { __t: { $exists: true } }, { __t: 1, __id: -1} ) | |
| .sort( { __t: -1 } ).limit(1); | |
| const next = await cursor.hasNext() ? (await cursor.next()).__t + 1 : 1; // calculate next __t |