George Mauer togakangaroo

## timer.specs.js
import { expect } from 'chai'
import { useFakeTimers } from 'sinon'

const createStopWatch = ({ setInterval, clearInterval, Date} = global) => {
    const createDisplays = (main, laps = []) => ({main, laps})
    let resumeTime
    let nextToggle
    let currentInterval = null
    let prePauseMs = 0

## timer.specs.js
import { expect } from 'chai'
import { useFakeTimers } from 'sinon'

const createStopWatch = () => {
    const createDisplays = (main, laps = []) => ({main, laps})
    let startTime
    const sw = {
        displays: createDisplays(null),
        toggle: () => {
            sw.displays = createDisplays(0)

## timer.specs.js
import { expect } from 'chai'
import { useFakeTimers } from 'sinon'

const createStopWatch = () => {
    const createDisplays = (main, laps = []) => ({main, laps})
    const sw = {
        displays: createDisplays(null),
        toggle: () => {
            sw.displays = createDisplays(0)
        },

## timer.specs.js
describe(`Stopwatch`, () => {
    let clock
    beforeEach(() => clock = useFakeTimers())
    afterEach(() => clock.restore())

    describe(`new instance`, () => {
        let sw
        beforeEach(() => sw = createStopWatch())
        it(`shows nothing on main display`, () => expect(sw.displays.main).to.equal(null))
        it(`shows no laps`, () => expect(sw.displays.laps).to.deep.equal([]))

## timer.specs.js
const createStopWatch = () => {
    const createDisplays = (main, laps = []) => ({main, laps})
    const sw = {
        displays: createDisplays(null)
    }
    return sw
}

## timer.specs.js
import { expect } from 'chai'

describe(`Given a stopwatch`, () => {
    let sw
    beforeEach(() => sw = createStopWatch())
    it(`shows nothing on main display`, () => expect(sw.displays.main).to.equal(null))
    it(`shows no laps`, () => expect(sw.displays.laps).to.deep.equal([]))
})

## dp-string-gcd.org

      
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                togakangaroo
                / dp-string-gcd.org
            
            
              Last active Oct 14, 2019
            
          
      View dp-string-gcd.org
  
    
    Greatest Common Divisor of Strings
From the Operation Code Slack
Problem statement:
For strings S and T, we say “T divides S” if and only if S = T + ... + T  (T concatenated with itself 1 or more times)
Return the largest string X such that X divides str1 and X divides str2.
```
Input: str1 = "ABCABC", str2 = "ABC"

  
## daily programmer gcd of strings.html
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<!-- 2019-10-14 Mon 12:29 -->
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>&lrm;</title>
<meta name="generator" content="Org mode" />

## index.html
<style id="jsbin-css">
ul {
  list-style-type: none;
  padding: 0;
  display: inline-flex;
  font-size: 50px;
  outline: 1px solid red;
  width: 5em;
  overflow: hidden;
}

## index.html
<style id="jsbin-css">
section {
  overflow: hidden;
  background-color: teal;
  height: calc(5 * 2.6ex);
  line-height: 2.6ex;
}
section p {
  float: right;
  margin: 0;