tjconcept

Keybase proof

I hereby claim:

• I am tjconcept on github.
• I am thomasjensen (https://keybase.io/thomasjensen) on keybase.
• I have a public key whose fingerprint is CC4C DE2E 97F2 EEA0 5C3A C2AE 60BE 7EA0 1EB0 4B01

To claim this, I am signing this object:

tjconcept

If you wish to put the entire fee on your customer, remember that the customer must also pay the fee of collecting the fee itself.

r = 0.025 // (rate fee)
f = 0.25 // (flat fee)

O = 100 // original amount (the cost of some product)

Naive (wrong) approach:

tjconcept

Array.from({ length: 1000 }, (v, k) => k)
  .filter(x => x%3 === 0 || x%5 === 0)
  .reduce((t, x) => t + x, 0)

tjconcept

'use strict';

const http = require('http');
const Promise = require('bluebird');
const tell = require('http-tell');
const infer = require('http-infer');
const dispatch = require('http-dispatch');

const a404 = { code: 404 };

tjconcept

export default function using(...args) {
	const fn = args.at(-1)
	if (typeof fn !== 'function') {
		throw new Error('Missing expected function argument')
	}
	if (args.length < 2) {
		throw new Error('At least two arguments must be passed')
	}
	return Promise.all(args.slice(0, -1)).then((v) => fn(...v))
}

tjconcept

class Rejection {
	constructor(reason) {
		this.reason = reason
	}
}

export default function using(...args) {
	const lastIdx = args.length - 1
	const fn = args[lastIdx]
	if (typeof fn !== 'function') {

tjconcept

export default function using(hash, fn) {
	if (typeof fn !== 'function') {
		throw new Error('Missing expected function argument')
	}
	return Promise.all(Object.values(hash)).then((values) =>
		fn(
			Object.fromEntries(
				Object.keys(hash).map((key, idx) => [key, values[idx]])
			)
		)