Callback is facility to save a piece of code so that it may be invoked later in the current environment (Typically in response to an event)
1
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1answer
29 views
Is this a proper callback implementation in Java?
I have a code which I believe is callback implementation. Can you please provide your more experienced opinions on whether this is a good way to ...
6
votes
1answer
77 views
MVC Model validation callback
I have made a simple MVC framework of my own for my personal website to learn a thing or two about how this whole thing even works. I think I've got the idea, but there's one thing I'm not sure about.
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3
votes
1answer
46 views
Notify Property Changed
Inspired by a SO post, just as an exercise, I tried to implement a way of notifying a consumer of a class about whether a property on an object has changed or not. I'm not attempting to use this in ...
4
votes
1answer
152 views
A method for events callback with the correct “this”
What do you think of the following "utility" :
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2
votes
1answer
60 views
Module pattern callback implementation
I'm rewriting a simple app using HTML/CSS/JavaScript that creates animations with images using intervals, and there's a bunch of buttons that controls these animations.
It's scaling and becoming ...
3
votes
2answers
103 views
Load images, manipulate DOM, store/retrieve data using localStorage
I wrote a little code sample which:
load images
manipulate DOM (replace images)
store/retrieve related data using
localStorage
...
3
votes
1answer
24 views
Three implementations of observable objects
I wonder, what might be the best (most pythonic) way of implementing multiple observerables in Python. There are multiple objects, which should be able to register themselves at one or multiple ...
2
votes
1answer
79 views
Can this code utilizing promises be written more succinctly?
I've written the following code to get all .txt files in a directory and read+delete them, repeating every 15 seconds.
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vote
0answers
81 views
JavaScript parameters - best practices for settings object/callback
I have the following function which runs as expected and is defined in the window object:
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4
votes
2answers
73 views
Callback on AlertDialog
I am using an AlertDialog in Android, asking the user for some input. I would like do run some code when the user has finished entering her input.
Since an ...
10
votes
2answers
141 views
Pledge: Promise-like entities design goals experiment
Background
I was writing a promises/a+ implementation, just for fun. About halfway through I decided it wasn't that fun after all, so I decided to do something a little different.
Thinking of ...
4
votes
2answers
144 views
Generic callback object, but I need the type parameter inside methods
Inside my android app, I currently have methods that look like below code. Since they all need a callback object that basically does the same thing and I would like to try to eliminate the duplicated ...
6
votes
4answers
284 views
6
votes
2answers
60 views
Alternate way for comparison call back function?
I'm doing a programming practice problem and was wondering if someone can suggest a better to create/setup the call back for the comparison function. I have the following classes:
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7
votes
1answer
117 views
Requesting Resources Until Exhaustion
When an API has a 'next' feature, I use the following pattern to obtain all the results:
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3
votes
1answer
56 views
Using jquery Callbacks.fire method as a event handler
So I've got a jquery project where I'm using an external class that has callback style events. Meaning, it has an "onSave" property that takes one function. However, I need to more than one other ...
3
votes
0answers
282 views
Aysnc call back to UI Thread
My main DLL is a .Net one that has an async running method and fires an event when it's done:
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2
votes
2answers
79 views
Conditional functions or multiple similar definitions?
In my program(C++), I'm going to use callback functions to process input from the keyboard and mouse and constantly draw a scene. How these functions process information will change depending on the ...
6
votes
2answers
85 views
Is this the right way to work with callbacks and the EventEmitter?
I'm creating a small online multiplayer game in NodeJS and I'm wondering if I'm "doing it right".
Here is a bit of my code:
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3
votes
1answer
149 views
Using Callback in Codenameone native code using Java [closed]
I would like to use Callbacks in my StateMachine to fetch values from Callback class, that is set in the native Android code.
Is this a right approach to create one? Do you see any issues with the ...
3
votes
1answer
939 views
Node.js Async Callback Hell
Attempting to create a final array with data pulled from 3 functions. The first two functions have all the data but then the 3rd function needs to run looping through one of the fields from function 2 ...
4
votes
1answer
100 views
Python model for a “snake”-like game
I wrote a python model for the game "snake" that I'm not really satisfied with.
My intention was to separate the game logic from the drawing and input handling (which worked quite well) but I've got ...
1
vote
1answer
628 views
Node.js DynamoDB callback
I am writing an API which gets results from a DynamoDB table and puts the JSON back into the browser.
The code below works and returns the desired results. However, after reading about async and ...
1
vote
2answers
4k views
Time of day based timer - run function at certain time, daily
I need to call a function exactly at certain hour, daily, my programs runs 24/7.
I wrote the following timer mechanism, which generally works that way:
Calculate time until hour and generate timer ...
2
votes
2answers
167 views
Please review my fast templated call back implementation
Below is the code for my templated callback implementation. Currently it works for a single parameter. One thing I was going to try and do next was increase the argument to the function from 1..N ...
2
votes
1answer
79 views
My yld NPM - callbacks/promises alternative
I'd like feedback on my callbacks/promises alternative, please.
The yld repository
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0
votes
1answer
446 views
Best practice on implementing Java Swing Callback
I guess I am at the design stage and as such dont have actual code to review so this might be the wrong place to ask this in which case let me know and happy to close/move the question
I am trying to ...
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vote
0answers
880 views
Javascript Queue for async functions
Based on the answer to my previous question on Stack Overflow, I put together the following Queue class. I realize there are already libraries out there to do this. However, I wanted to actually ...
7
votes
1answer
229 views
Prime Numbers Store
Let's say we need to create a store for selling prime numbers.
Users enter the store and ask to buy a number.
If the number asked is a prime number,
1.1. then it's either available for sale
1.2. ...
1
vote
1answer
109 views
my first jquery/json
This is my first use of jquery and json so would be grateful for any feedback please.
Background - this is on a job listing site and it has a Linkedin apply button plugin - this provides for a ...
3
votes
2answers
293 views
Passing Context in CoffeeScript
I'm trying to migrate from JavaScript to CoffeeScript. However I'm not sure about the best way to optimize the code generated by js2coffee.
Below is the original JavaScript source :
...
4
votes
1answer
251 views
Collection of Actions
I am trying to create a class to queue up a series of commands. (Not really a queue as events happen based on time). Each command has a callback (Action) that get's called. However, each Action has a ...
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vote
1answer
820 views
Calling a function when all asynchronous calls complete
Below is a simplified version of some code I am using to execute a function after all asynchronous calls complete. Is this a reasonable piece of code? It seems to work. Nothing would break if ...
1
vote
1answer
323 views
Improve on an after_create callback with database queries - Ruby on Rails
First, some background. I have a Payment model that has_many :subscriptions. When a user pays (creates a new payment), I have an ...
1
vote
1answer
472 views
How to fix retrieval of receive data - very basic socket library in C
I am trying to learn C and have written a very basic socket library listed below. I would be interested in any general design and coding comments.
Note that at this stage I am not bothered about ...
3
votes
1answer
306 views
“Piping” from a callback to an Iterator
My project has a central concept of a Callback<T> which is defined very simply:
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2
votes
2answers
156 views
Ruby Callback System
Version 1
I need a way to store and retrieve callbacks in Ruby. So I made a Callbacks class. Any suggestions would be greatly appreciated, thank you!
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0
votes
1answer
2k views
Efficient implemetation of AlertDialog callback in Android
One day I realised that my Android project utilizes AlertDialogs here and there in very ineffective way. The heavily duplicated portion of code looked like this (actually, copied and pasted from some ...
25
votes
2answers
2k views
Asynchronous network callback code
I did not get the job after submitting this piece of work in an interview, but I have no feedback to know what "BAD" things are inside this block of code.
The requirements are:
Connect to the ...
2
votes
1answer
143 views
jQuery callbacks optimization
I have a lot of repeatable blocks of code and want to optimize/simplify them:
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6
votes
1answer
233 views
Do nothing lamda…
$privilegeStrings = array_filter($privileges, function ($s) { return is_string($s); } );
Is there a better way to specify that I want just the string values in ...
