kottenator

// Implementation in ES6
function pagination(c, m) {
    var current = c,
        last = m,
        delta = 2,
        left = current - delta,
        right = current + delta + 1,
        range = [],
        rangeWithDots = [],
        l;

kottenator

/**
 * Specific error parser for django-rest-framework errors structure
 * Tested on django-rest-framework v2.3.13
 * Live example at http://jsbin.com/wiqumo
 *
 * Error structure examples:
 *
 *     // The most simple case
 *     { detail: "Authentication is required" }
 *

kottenator

"""
Field with multiple *static* choices (not via m2m)

Value is stored in DB as comma-separated values
Default widget is forms.CheckboxSelectMultiple
Python value: list of values

Original Django snippet: https://djangosnippets.org/snippets/1200/
It's 6 years old and doesn't work with latest Django
Also it implements 'max_choices' functionality - I have removed it for simplicity

kottenator

/**
 * Simple Observer pattern mixin (custom event dispatching & listening)
 * Doesn't requires any 3rd-party JS libs. It's pure JS
 *
 * Usage:
 *
 *     var MyObject = {...}; // your custom object
 *     Observer.apply(MyObject); // you also can apply Observer to a prototype
 *     MyObject.on('inited', function() { console.log("I'm alive!"); });
 *     MyObject.trigger('inited');

kottenator

/*
 * Select2 v3.4.6 styles customization for Flat UI
 */
/*----------------------------------------------- Main select element ------------------------------------------------*/
.select2-container .select2-choice {
    height: 41px; /* Jobsy form controls have 37px total height */
    border: 2px solid #bdc3c7;
    border-radius: 6px;
    outline: none;
    font: 15px/38px "Lato", Liberation Sans, Arial, sans-serif;

kottenator

Goal

Demonstrate how to configure browserify with browserify-shim to exclude jQuery from the bundle and to make jQuery plugin (that supports CommonJS modules) work correctly, using global window.jQuery object.

Step 1: create files

index.html:

<script src="node_modules/jquery/dist/jquery.js"></script>

kottenator

/*
Specific conditions:

- input: `oldString` and `newString` (e.g. `'old same'` and `'same new'`)
- output format: `'(old )same[ new]'`
- return diff of min length, not counting `()[]`
- return diff which is min among all diff variants by lexicographical order, with one remark: consider `\w` < `()` < `[]`

Taken from CodeFights: Dropbox bot challange.
*/

kottenator

/**
 * General implementation of depth-first graph traversal (OK to have loops),
 * no recursion.
 */
function depthFirstTraverse(connections, i=0) {
    let visited = {};
    let traverseStack = [[-1, i]]; // edge from A to B vertex
    let revisit = false;
        
    while (traverseStack.length) {

kottenator

function breadthFirstTraverse(connections, start = 0) {
  let stack = [[start, 0]]; // keep node index & current depth
  let visited = new Set;

  while (stack.length) {
    let newStack = [];
    log('Current stack:', stack);

    for (let [i, depth] of stack) {
      log(`Visit ${i} (depth: ${depth})`);

kottenator

/**
 * Solution for this - https://codefights.com/interview-practice/task/dYCH8sdnxGf5aGkez
 */
function decodeString(s) {
    return parse(s)[0];
}

function parse(string, startIdx=0) {
    let i = startIdx;
    let res = '';