caub

module.exports = function(gen) { // coroutine, equivalent to https://github.com/tj/co
	const it = gen();
	return Promise.resolve().then(function pump(v) {
		const next = it.next(v);
		if(next.done) return next.value;
		return Promise.resolve(next.value).then(pump, it.throw.bind(it));
	});
};

caub

create table foo_version (
  id VARCHAR(32),
  v BIGINT,
  data TEXT,
  
  PRIMARY KEY (id, v)
);

create table foo (
  id VARCHAR(32),

caub

// 2 globals defined at boot of nodejs engine
rl = cb => require('readline').createInterface({input:process.stdin}).on('line',cb);
print = console.log;

/*
Let's call an integer "repetitive" if it contains two of the same digit in a row. For example, 12232 is repetitive but 1232 is not.
Given a positive integer n < 10^15, return the number of nonrepetitive integers in [1..n].
*/
// prog
rl(s=>{r=0;d=s.length-1;for(i=0;i<=d;i++){r+=(i>0&&s[i-1]<s[i]?s[i]-1:s[i])*9**(d-i);if(s[i-1]==s[i]){r--;break}}for(i=0;i<d;i++)r+=9**i;print(r)})

caub

const { Readable } = require('stream');
const ys = Buffer.from('y\n'.repeat(2**16));
class Y extends Readable {
    _read(size) {
        this.push(ys.slice(0, size));
    }
}
new Y().pipe(process.stdout); // test with node yes | pv -r > /dev/null

caub

const { Store } = require('express-session');
const { knex } = require('.');

class PGStore extends Store {
  destroy(sid, cb) {
    return knex('sessions').where('id', sid).delete().then(() => cb());
  }

  get(sid, cb) {
    // console.log('get', sid);

caub

• Shortening const to something like ref, val, cst because

  • it's the most frequently used keyword
  • conflicts with console.log auto-completion

• null should be Object.freeze(Object.create(null)) or a special Symbol.nullable

• ([] =~= []) // true shallow compare

• ({ a: {} } =*= { a: {} }) // true deep compare

• Making function arguments flexible and coherent with arrays

caub

diff --git a/bin/cli.js b/bin/cli.js
index 9dc79f9..cf68699 100755
--- a/bin/cli.js
+++ b/bin/cli.js
@@ -33,11 +33,23 @@ function checkLocalModule(env) {
 }
 
 function initKnex(env) {
-
   checkLocalModule(env);

caub

Keybase proof

I hereby claim:

• I am caub on github.
• I am caub (https://keybase.io/caub) on keybase.
• I have a public key whose fingerprint is 252A 77AD 73A4 A8BC FF76 D655 303C 5F10 6F57 4D9B

To claim this, I am signing this object:

caub

window.import = function (transformer) {
	const ROOT = location.origin;
	const REQUIRE_CACHE = new Map();
	const RE_EXT = /\.js\w*$/;

	function fqn(url, dirname) {
		const {href} = new URL(url.startsWith('http') ? url : (url.startsWith('/') ? ROOT : dirname) + url),
			last = href.lastIndexOf('/'), dir = href.slice(0, last+1), name = href.slice(last+1),
			filename = name ? (RE_EXT.test(name) ? name: name+'.js') : 'index.js';
		return {dir, abs: dir+filename};

caub

// https://codesandbox.io/s/jznpj65nm5

// ------- index.js
import React from 'react';
import { render } from 'react-dom';
import Hello from './Hello';
import DataProvider from './DataProvider';
import * as data from './dataStore';

const styles = {