Questions tagged [coffeescript]
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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Converting Date object in CoffeeScript to string (with a weird format)
I'm trying to convert a Date object into a weird format, like so:
03/30/2017 11:37:14:082 -0500
The issue that really trips me up is the timezone offset. There's ...
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CoffeeScript 2 + 2 program
I tested this program on Smooth-CoffeeScript
I just wanted to have as many eyes on this as I could to learn about coffeescript;
Is there anything I should do to improve it?
Am I using the tools ...
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Displaying job status in a jQuery Datatable
I was wondering if there was a better way to write this:
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Abstracting out two lines of code in Coffeescript
I am currently working on refactoring two methods that exist in directives into a service.
This is method one:
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Multiple string interpolation
Mostly robocop and hound give "line is too long" for such code statements. I just wanted to know which one is better and preferable way.
This one is a way to avoid making the message long so just do ...
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jQuery Mobile Menu plugin
I would like some opinions on this Mobile Menu plugin I wrote for work. We develop custom WordPress themes, nothing too advanced or anything. I would like if anyone could just take a look and provide ...
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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 ...
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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 ...
user44869
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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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59
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Recursively merge objects with corresponding property names
I have such objects that I need to merge:
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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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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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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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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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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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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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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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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} ]
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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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Extracting a list of hyperlinks [closed]
I need to produce a list objCollector with some results:
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85
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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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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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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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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 ...
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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 ...
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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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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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AngularJS Login Check
I have states that have a requiredlogin object set as true, then I have Angular listen on ...
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188
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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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665
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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 ...
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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 ...
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393
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RESTful API parsing DBF data HSET in Redis
I have this working code, but would like your review:
sync.coffe
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109
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Conditional AND statement- which is more readable? [closed]
Does this function
automationStatusIsSuccessful = (data) ->
data.Automation.Status isnt "FAILED" and data.Automation.Status isnt "COMPLETEDWITHERROR"`
make ...
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122
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Function with underscore overuse
The code below is converting: data from one format to another
...
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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 ...
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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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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?
...
user27606
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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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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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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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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 <...
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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 ...
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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 ...
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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 ...
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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. ...
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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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Implementing a Simple "MoneyAccount" in CoffeeScript
Please critique this CoffeeScript code. Is it idiomatic?
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125
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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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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 ...
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