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JavaScript JavaScript Basics (Retired) Creating Reusable Code with Functions Random Number Challenge Solution

Posted by Robert Richey
Robert Richey
Courses Plus Student 16,352 Points

Show TTH: Practice manual-coding minified JavaScript

Hi, so this isn't a question - just want to 'show' this off. I started to geek out trying to manually code minified JavaScript - because, reasons! I'm finding this fun, challenging and entertaining. Do any of you get a kick out of writing code like this? (obviously not appropriate for a production environment).

I'm thinking about writing a pre-processor that will expand single letters to their full keywords. For example, I'd like to write f r(a,b) that will be expanded by the pre-processor into function r(a,b). Or, perhaps make it more jQuery-esque by writing $r(a,b) that expands to function r(a,b).

function r(a,b){return Math.floor(Math.random()*(((a<b)?b:a)-((a<b)?a:b)+1)+(a<b?a:b))}for(var i=0;i<10;++i){console.log(r(Math.random()*1000,Math.random()*1000))}

1 Answer

Iain Simmons
MOD
Iain Simmons
Treehouse Moderator 32,305 Points
Iain Simmons
Iain Simmons
Treehouse Moderator 32,305 Points

So you can remove a couple of sets of parentheses around your first two conditionals in the ternary statements, shave off another 4 characters!

And though it's not recommended, you could leave out the var keyword and space within the for loop, and it would just be a global variable.

Lastly, because you already have a random number function, why not use that again at the end?

function r(a,b){return Math.floor(Math.random()*((a<b?b:a)-(a<b?a:b)+1)+(a<b?a:b))}for(i=0;i<10;++i){console.log(r(r(0,1000),r(0,1000))}