CoffeeScript is a little language that compiles into JavaScript. Underneath all of those embarrassing braces and semicolons, JavaScript has always had a gorgeous object model at its heart. CoffeeScript is an attempt to expose the good parts of JavaScript in a simple way.
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22 views
Coffee for tooltip with images [closed]
i have an coffee script for creating tooltip and it look like so unacceptable. How can I refactor it?
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5
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0answers
32 views
Loading an SVG into the canvas
The code below is loading an svg into the canvas via RaphaelJS. There are mouseover/mouseout events, on click on an element of the svg, and drag/zoom.
I would like to know, what are some good ...
3
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0answers
20 views
Hotel Room Problem in CoffeeScript
Question:
You're in a hotel and you forgot what room number you were in but remember that the sum of it's divisors is greater than the number, yet there is no subset of those divisors that add up to ...
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0answers
23 views
Simple Node.js localization package
I wanted a simple localization module to manage multi-language strings in my new personal Node.js project. As I'm working on this project primarily to learn and play around and the packages I found ...
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0answers
24 views
Idle game code optimization
I am currently making an idle game, and I currently have a few issues about optimization that I want to fix (which I will list at the end). But first, the code:
main.coffee
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3
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0answers
19 views
Backbone.model based state machine
I have created a class to keep track of some internal states. You can see it as a very simple implementation of a state machine
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2
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0answers
38 views
Recursively merge objects with corresponding property names
I have such objects that I need to merge:
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3
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1answer
223 views
Configuring a DataTable using CoffeeScript
I am working on a simple Rails app. For the Expense resource I use a DataTable. So, in my CoffeeScript for this resource I basically do several things:
initialize ...
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0answers
23 views
Better way to template in simple coffee script
I am looking to see if there is a better way to refactor the creatMessage such that the logic of identifying message elements is outside the actual message ...
1
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1answer
55 views
Kruskal's algorithm
I'm working through Coffeescript implementing simple algorithms (started with Prim's as reviewed in this previous post) and wrote out Kruskal's algorithm as below, with a few helper functions. I'd ...
0
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1answer
150 views
Operating on a list of files using recursion
I'm starting just now with CoffeeScript and I found out that I can't solve problems like looping and recursives with just one line. I would like to improve the code that I just wrote using built-in ...
2
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3answers
72 views
Prim's algorithm in CoffeeScript
I'm just starting to learn CoffeeScript and am trying to work through simple examples, this one being Prim's algorithm. I'd like feedback on everything but especially on making this script take ...
3
votes
0answers
40 views
Using Angular directives for connect HTML clicks in buttons and controller actions
I'm trying to improve my Angular directive. I'm pretty new to CoffeeScript, so I think there may be inconsistent code.
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1
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0answers
171 views
Optimizing redis cache
I am new to Express so I'd like to clear my code. This is Express with Redis support. I am getting someId and then I am searching it on Redis or using scraper which ...
3
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0answers
38 views
Search Class with Static Methods
Most of my programming experience is in PHP, and I have always been a bit wary of JavaScript.
I have a JavaScript class to manage executing, caching and displaying search results.
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3
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0answers
49 views
Multiple select widget in CoffeeScript
I created a widget to handle multiple selections in CoffeeScript. There's a working attached snippet that uses the compiled JavaScript (Stack Snippets don't support CoffeeScript), which is available ...
4
votes
1answer
57 views
Merge values of the objects properties with the same name into array
I have such input:
[ { name: 'timezone', value: 'EST' },
{ name: 'interval', value: 'day' },
{ name: 'metrics[]', value: 1},
{ name: 'metrics[]', value: 2} ]
...
3
votes
0answers
572 views
Passing functions using higher order components in React
After reading this, I'm on board, however it doesn't get into passing methods from the parent class. In my mixins right now I have a lot of helper functions that are used across the various components ...
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1answer
32 views
Extracting a list of hyperlinks [closed]
I need to produce a list objCollector with some results:
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2
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0answers
52 views
Correcting a quiz
I wrote this code that's supposed to correct quizzes on a webpage, but it feels bloated and I'm sure there's tons of ways to improve it. Any thoughts?
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4
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2answers
416 views
HTML5 Video player
I do HTML5 Video player with some controls. I have a button, where I change classname for make play, pause or replay button. I have a mute/unmute button, volume range slider, timer and fullscreen mode ...
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0answers
25 views
2
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0answers
489 views
Click interceptor directive
I needed a simple way to add this test to certain click events:
if isUser then fireClickEvent else openSignInModal
So I made this directive:
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2
votes
0answers
318 views
Resource that use two different services and query with pagination when resolved
I'm learning Angular and I don't like my current approach. The current controller uses first Geolocation service and when ...
2
votes
1answer
108 views
Wait for all resources to be loaded
In my application I need some resources to be loaded and I have services to load each of them and then I need some point to know that all requests finished. First thought was to use $q.all with array ...
3
votes
1answer
1k views
Regex for curly quotes and apostrophes
After years of fear and procrastination I decided to learn regular expressions. This is the result:
CoffeScript:
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5
votes
2answers
240 views
Periodic Table generator
I've been playing around with Jekyll and CoffeeScript the last few days and made a Periodic Table to learn those two.
Now, to create the Periodic Table, I take an array of ...
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1answer
611 views
AngularJS Login Check
I have states that have a requiredlogin object set as true, then I have Angular listen on ...
4
votes
1answer
126 views
Flood game implementation
There is the implementation of flood game on my GitHub.
The app.coffee is the main part of project:
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1answer
84 views
4
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2answers
476 views
Get <TH> texts into a tab separated string
table_with_headers = $(this.dom.table).find("thead tr th").map(->
$(this).text()
).get().join("\t")
Can one write it nicer? I especially don't like the inner ...
6
votes
1answer
165 views
English-Russian irregular words tester
Could you please offer some suggestions about my self learning project?
It is really hard-coded, but I have no idea what to do next. I'm using angular (only few ...
2
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0answers
247 views
RESTful API parsing DBF data HSET in Redis
I have this working code, but would like your review:
sync.coffe
...
1
vote
1answer
72 views
Conditional AND statement- which is more readable? [closed]
Does this function
automationStatusIsSuccessful = (data) ->
data.Automation.Status isnt "FAILED" and data.Automation.Status isnt "COMPLETEDWITHERROR"`
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votes
1answer
65 views
1
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1answer
570 views
Refactor Coffee Script to fire on page load instead of change
I have a Rails app where I'm trying to select a list of facilities based on what region is selected in a form. So far, I've implemented group_collection_select to do this as well as a bit of ...
2
votes
1answer
246 views
NodeJS conditional request before the real request
In my code I have to login a user with username and password. But if the user sends his e-mail instead of his username, I have to resolve it with another request.
This is what the code looks like:
<...
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vote
1answer
352 views
Generating Passwords with a Secure PRNG
What's the best way to approach generating a password using a secure prng? In Python, I could simply use os.urandom. Any suggestions on this?
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5
votes
2answers
64 views
Mathematical boundaries (audio meter)
I've just been putting together an audio meter by stacking bootstrap progress bars, and thought there was probably a better way, mathematically / logically, of achieving this.
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5
votes
1answer
57 views
Tick module for the game
I tried to look up and suck in most of the information about optimizing this operation and this is what I came up with. As it's pretty much core of the game, I really would like to have it performant ...
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1answer
83 views
Navigating around ul li and looking for the active state on the current slide
How can I rewrite this in a simpler way?
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3
votes
1answer
97 views
Automatically gravitate popover towards page center
I've authored a couple of plugins which show popovers on a given element. One of the objectives for both was no specification of plugin direction. So instead of the implementing dev having to specify <...
3
votes
0answers
163 views
Create component with select+button
I'm new to ReactJs and trying to figure out the preferred style. I also have tried it enough to realize that I'm not a fan of jsx and prefer how React looks when written in coffeescript.
This is a ...
3
votes
1answer
55 views
Set up event on class and initialize state [closed]
Very similar to this question, I'm curious about common patterns/best practices for handling events in coffeescript classes, particularly when you also need to call the event handlers immediately to ...
4
votes
1answer
213 views
Ruby on Rails text editor
I'm currently building a text editor using contenteditable and RoR back end. As the editor is WYSIWYG and trying to follow DRY, I used only one file to 3 actions: Show, Edit and New.
Edit and new ...
4
votes
1answer
244 views
Resize renderer on browser window size change
For a game, there is some WebGLRenderer object that wraps around canvas element. There is need to update it's size when browser window size changes. Here goes my current code written using BaconJS. ...
4
votes
2answers
77 views
Initializing events on class
I wrote a simple class that substitutes all file inputs in an HTML for a more complex template and set some actions on it. The code is rather small, but I'm not used to write JavaScript.
I wonder if ...
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vote
1answer
39 views
Implementing a Simple “MoneyAccount” in CoffeeScript
Please critique this CoffeeScript code. Is it idiomatic?
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2
votes
1answer
45 views
Cleaner Way to Test for Types? [closed]
I defined a function that multiplies its argument by 3:
coffee> foo = (x) -> x * 3
[Function]
We can call it with an input of 1:
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10
votes
1answer
199 views
Optimize CoffeeScript comparison function
I've wrote this CoffeScript function to compare values in a table, but it turned out to be a HUGE function.
Since the code is really really long, you can find it here as well.
Code explanation:
The ...
