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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23 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
68 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
18 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 ...
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0answers
44 views
Initialize Express app with CoffeeScript
I do not care to create an extra layer if that leave the code more beautiful. But I do not want to be doing estupides. I'm using Node.js + Express + CoffeeScript, and I would like to know if what I'm ...
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0answers
111 views
File upload with Express
A sample file upload application on Express. It use busboy as form data parser
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0answers
237 views
File upload form with React(only frontend)
I wrote a simple file upload with drag-and-drop. It uploads an image to server and show preview on the form.
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1answer
45 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 ...
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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 ...
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3answers
70 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 ...
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0answers
15 views
AccountModel data structure
I need to model simple account data structure. The user should be able:
to add a transaction
get information about transaction
take all transaction of some type
sum a transaction and all its ...
3
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0answers
34 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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0answers
105 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
37 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
35 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 ...
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1answer
55 views
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435 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
47 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
297 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
17 views
2
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0answers
320 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
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0answers
238 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
97 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
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1answer
710 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
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2answers
204 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
461 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
68 views
4
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2answers
373 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
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1answer
145 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
188 views
RESTful API parsing DBF data HSET in Redis
I have this working code, but would like your review:
sync.coffe
...
1
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1answer
71 views
Conditional AND statement- which is more readable?
Does this function
automationStatusIsSuccessful = (data) ->
data.Automation.Status isnt "FAILED" and data.Automation.Status isnt "COMPLETEDWITHERROR"`
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1answer
61 views
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1answer
394 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
191 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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1answer
192 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
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2answers
58 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
55 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
92 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
147 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
50 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
201 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
205 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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1answer
38 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
182 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 ...
2
votes
1answer
349 views
Multiple search filter like the one in freshdesk
I have requirement to apply multiple filters on database. I will have multiple conditions in the front end where the user can select the conditions he wants to filter with and then see the output. ...
4
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0answers
6k views
An Object-Oriented Programming pattern for AngularJS models using CoffeeScript classes
Over the past week, we tried to make our AngularJS model layer more powerful and reduce complexity in our controllers and template by using the object-oriented programming pattern and the CoffeeScript ...
