Michaela (Blackham) Lederman michaelablackham
michaelablackham
/ Scopes and Problems with Globals
Created
April 17, 2017 02:46
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| 1. What is scope? Your explanation should include the idea of global vs. local scope. | |
| - Scope is the way the the browser parses the information on the page. It is like a backward ladder that first looks | |
| within the function, then steps back and looks within the parent, etc. | |
| - global scope is a variable that is defined within the body or outside of a function and is then avaiable everywhere | |
| within your site | |
| - local scope is a variable defined within that current function. This can be the same variable from the body, but is | |
| only relevent to that current function | |
| 2. Why are global variables avoided? | |
| - Global variables should be avoided so that no unintended side effects happen within the code. This makes it available | |
| everywhere in the code, which then becomes a bit difficult to maintain. |
michaelablackham
/ Loops and array
Created
April 15, 2017 20:19
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| https://jsbin.com/sekihux/2/edit?js,output | |
| https://jsbin.com/tevuri/2/edit?js,console | |
| https://jsbin.com/mokuci/edit?js,console |
michaelablackham
/ Array Basic Skills
Created
April 12, 2017 03:03
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| https://jsbin.com/batotex/1/edit?js,console | |
| https://jsbin.com/jazemoh/1/edit?js,console | |
| https://jsbin.com/nunojug/1/edit?js,console | |
| https://jsbin.com/geyuyek/1/edit?js,console | |
| https://jsbin.com/calogo/1/edit?js,console | |
| https://jsbin.com/gemexah/edit?js,console | |
| https://jsbin.com/lixoqim/1/edit?js,console | |
| https://jsbin.com/kuqosim/1/edit?js,console | |
| https://jsbin.com/nezazu/1/edit?js,console | |
| https://jsbin.com/juhojo/1/edit?js,console |
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| function main() { | |
| try { | |
| doAllTheThings(); | |
| } | |
| catch(e) { | |
| console.error(e) | |
| reportError(e); | |
| } | |
| } |
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| function computeArea(width, height) { | |
| return width*height; | |
| } | |
| // tests | |
| function testComputeArea() { | |
| var width = 3; | |
| var height = 4; | |
| var expected = 12; |
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| function shouter(whatToShout) { | |
| return whatToShout.toUpperCase() + '!!!'; | |
| } | |
| /* From here down, you are not expected to | |
| understand.... for now :) | |
| Nothing to see here! |
michaelablackham
/ index.html
Created
April 8, 2017 23:06
JS Bin // source https://jsbin.com/fugihof
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <script id="jsbin-javascript"> |
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