Javascript

  1. A simple example using Flux

    Recently at work, I was pulled into a project where React is used to generate a nested form and aggregate them at the end for a user. React is pretty good at handling the nested form display based on conditions selected by the user on the fly. The problem comes…
    on Javascript React Flux - Comments

  2. D3 for Beginners

    I've longed for learning D3. It's partially because I love graphes. One graph triumphs thousands of words, I think. Now I got the opportunity to learn it while working on a gig. Sweet! The first couple of graphs I drew were just basic column charts, pie/…
    on Javascript d3 - Comments

  3. Javascript Prototype and Inherance

    We know that one way of Javascript supporting inherence is through prototype/__proto__. var accord = {make: 'Honda', model: 'accord'} var civic = {model: 'civic'} civic.__proto__ = accord Because civic inherits from accord, civic's make will be: civic.make =>'Honda' Javascript…
    on Javascript Programming - Comments

  4. Closure in Javascript, Ruby and Python

    Closure is after an outer function returns, when inner function is called, it still has access to the outer function's defined variables. In order for the language to be able to support closures, it must support first-class functions. A first class function is a function that can be…
    on Javascript Ruby Python functional programming - Comments

  5. Render a Partial View with Ajax Call - Tutorial for Beginners

    Render a partial view in Rails is very straighforward. If you have a partial view file named _form.html.erb, in your view page, you could just do <%= render "form" %> . That's the most basic partial rendering. What about there are variables involved or the…
    on Ruby on Rails Javascript - Comments

  6. Refactoring - replace jquery updating page with partial view refresh

    I have a voting page, where user can vote up and down a restaurant. It triggers an ajax call to update the votes in database. Meanwhile a jquery snippet takes care of updating the vote count on the page. It works alright. But the code is tedious. <tr>…
    on Ruby on Rails Javascript - Comments