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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1answer
33 views
AngularJS Login Check
I have states that have a requiredlogin object set as true, then I have Angular listen on ...
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0answers
13 views
nodejs readers/writers concurrency [closed]
Here's some simple code that demonstrates what I'm trying to do
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4
votes
1answer
68 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
26 views
1
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1answer
68 views
Cleaner way to map array of objects in CoffeeScript
Im wondering if there is a cleaner way to write this -
map = (obj) ->
$scope.data.push({name : obj.name, id : obj.id})
map obj for obj in objArr
...
4
votes
2answers
131 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 dont like the inner ...
6
votes
0answers
62 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
votes
0answers
31 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
65 views
Conditional AND statement- which is more readable?
Does this function
automationStatusIsSuccessful = (data) ->
data.Automation.Status isnt "FAILED" and data.Automation.Status isnt "COMPLETEDWITHERROR"`
...
0
votes
1answer
45 views
1
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1answer
44 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
63 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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1
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1answer
26 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
48 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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2
votes
0answers
35 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 ...
1
vote
1answer
49 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
57 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
83 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
39 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 ...
3
votes
0answers
129 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
91 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
68 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 ...
1
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1answer
29 views
Implementing a Simple “MoneyAccount” in CoffeeScript
Please critique this CoffeeScript code. Is it idiomatic?
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2
votes
1answer
37 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:
...
6
votes
2answers
106 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 ...
1
vote
1answer
139 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
votes
0answers
2k 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 ...
0
votes
2answers
166 views
Promises and chained calls
I've realized JS callback hell and I started looking into Promises libraries.
After reading some articles I decided to start with BluebirdJS. I didn't realise how to properly use them yet, because ...
7
votes
5answers
346 views
Avoiding nested conditionals and comparing strings
I have a web page with a set of icons that are grey by default:
If a user clicks one, it toggles green (.toggleClass('green')):
If a user clicks a green one, ...
1
vote
1answer
44 views
Remove nodejs/browser specific code in library
I'm the maintainer of the following library on github: https://github.com/edi9999/docxtemplater/blob/master/coffee/docxgen.coffee
I want to maintain a library that works on node and in the browser, ...
10
votes
1answer
172 views
Tabbed navigation to hide and show pages
I'm new to jQuery and trying to learn how to refactor my bloated code to make it nicer and better maintainable.
I have a tabbed navigation which I'm using jQuery to hide and show pages depending on ...
4
votes
1answer
48 views
8
votes
1answer
174 views
0
votes
0answers
33 views
Saving on a Backbone Collection
I am currently building a backbone view where there is a mutli select feature. Once the user selects all the records, the user hits the submit and sends all the updated models. How does this mass ...
0
votes
0answers
81 views
Currying options for Bootstrap components for use in Meteor
Bootstrap 3 helper (redacted) for displaying alerts.
...
1
vote
1answer
372 views
2
votes
1answer
89 views
Backbone subviews with non-uniform layout
I have a “featured projects” view that requires its subviews conform to a non-uniform grid: one narrow column with 3 items, then one wide column with 2 items, followed by another narrow column with 3 ...
-1
votes
1answer
259 views
How to improve or refactor Backbone CoffeeScript code? [closed]
how can I improve the following code mainly regarding the router, when to initialize the and fetch the collection and how I can filter the models?=
Thank you
...
3
votes
2answers
78 views
How can I remove DRY violations from this event handling code?
I've got a bunch of event handlers that follow this pattern:
...
3
votes
1answer
102 views
How to refactor this series of JavaScript promises?
This is part of a class for paginating a Backbone collection.
The paginateTo method is for paginating to a model id. It returns the model if it's already in the ...
2
votes
0answers
95 views
node.js Review Core class of a Javascript framework for SPA's
A few years ago I started building a tiny (~300 SLOC) JavaScript framework for scalable and maintainable Single-Page-Applications written in CoffeeScript:
https://github.com/flosse/scaleApp and ...
4
votes
2answers
172 views
isRTL.coffee - A JavaScript Library to determine if a text is of Right To Left direction
I just wrote this tiny library called isRTL.coffee to determine the direction of the text. Is there any better way of doing this?
original code:
...
3
votes
2answers
182 views
Fibonacci using cache
This is my simple Fibonacci implementation in CoffeeScript. What do you think? Using cache (fibResults), it's very very fast.
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1
vote
0answers
320 views
Handling multiple Mongodb connections in Node.js (using Mongolia)
I have a situation where I have multiple objects that each needs to connect to a different mongodb uri.
I am currently testing this using mongolia but the concept should be the same if I were to use ...
2
votes
2answers
813 views
0
votes
1answer
108 views
1
vote
1answer
157 views
CoffeeScript: multiple changes of scope and big if/else
I just wrote this, and cleaned it up as much as I could. A couple things worry me.
I change the scope of $(this) twice (and apparently don't know how to use ...
2
votes
1answer
417 views
Coffeescript Operators: use &&, ||, etc., or keyword operators?
I often use js2coffee.heroku.com to help me convert JS to CoffeeScript. Here was a line of JS I was converting.
...
2
votes
3answers
1k views
Function Is target String found in an Array of Strings in CoffeeScript
I wrote this simple function in CoffeeScript to see if elements are found in an array.
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-1
votes
1answer
2k views
Coffeescript nested if's
y = (if @projectionStyle is 'flat' then 0 else
if d3.event.y < -90
-90
else if d3.event.y > 90
90
else d3.event.y)
This is working now, but I ...
