Last active
December 7, 2018 18:14
-
-
Save secilreel/dea012e1f08d29bee69d5f6751f90ff4 to your computer and use it in GitHub Desktop.
Logic Drills
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
function doTrafficLights() { | |
const activeLight = getActiveLight(); | |
if(activeLight === 'red') { | |
turnRed(); | |
} | |
if(activeLight === 'yellow'){ | |
turnYellow(); | |
} | |
if(activeLight === 'green'){ | |
turnGreen(); | |
} | |
} | |
// this function randomly returns red, yellow, or green | |
// and is called by doTrafficLights. | |
// don't modify it! | |
function getActiveLight() { | |
return (['red', 'green', 'yellow'])[Math.floor(Math.random() * 3)]; | |
} | |
/* From here down, you are not expected to | |
understand.... for now :) | |
Nothing to see here! | |
*/ | |
function turnOffLights() { | |
$('.traffic-light').removeClass('yellow-on red-on green-on'); | |
} | |
function turnGreen() { | |
turnOffLights(); | |
$('.green-light').addClass('green-on'); | |
} | |
function turnYellow() { | |
turnOffLights(); | |
$('.yellow-light').addClass('yellow-on'); | |
} | |
function turnRed() { | |
turnOffLights(); | |
$('.red-light').addClass('red-on'); | |
} | |
function handleClicks() { | |
$('.js-control-lights').click(function() { | |
doTrafficLights(); | |
}); | |
} | |
$(function() { | |
turnOffLights(); | |
handleClicks(); | |
}); |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
function main() { | |
try { | |
doAllTheThings(); | |
} | |
catch(e) { | |
console.error(e); | |
reportError(e); | |
} | |
} | |
function doAllTheThings() { | |
throw { | |
message: "Everything's ruined", | |
name: "FatalException", | |
toString: function() { | |
return `${this.name}: ${this.message}`; | |
} | |
} | |
} | |
function reportError(e) { | |
$('.js-error-report').text(`Uh oh, something went wrong! Here's what we know: ${e.message}`); | |
} | |
$(main); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment