Created
August 24, 2018 23:31
-
-
Save ecarlson1201/f559ed65e8477ceda87a5fdc1aeacd7e to your computer and use it in GitHub Desktop.
Control and Flow Drill
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){ | |
reportError(e) | |
console.dir(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); |
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(); | |
}); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment