DmitrySoshnikov

/**
 * Automatic Reference Counting (ARC) Garbage Collection technique.
 *
 * This diff describes Reference counting GC technique.
 * See also previous lesson on Mark and Sweep GC:
 * https://gist.github.com/4391763
 *
 * by Dmitry Soshnikov <[email protected]>
 * MIT Style License
 */

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/**
 * Stop and Copy Garbage Collection technique.
 *
 * See also previous lessons on
 *
 * - Mark and Sweep GC: https://gist.github.com/DmitrySoshnikov/4391763
 * - Reference Counting (ARC) https://gist.github.com/DmitrySoshnikov/4646658
 *
 * by Dmitry Soshnikov <[email protected]>
 * MIT Style License

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List comprehensions

Basic idea in theoretical programming: a notation for Set builders from math.

Basic idea in practical programming: syntactic sugar for "map + filter" functional methods:

Example of map and filter, ES6

let x = N.filter(x => x > 10).map(x => x * x);

DmitrySoshnikov

"use strict";

const slice = [].slice;

/**
 * A user callback function that is raised when the result of an async function
 * is available.
 *
 * @param Any error
 *        If truthy, indicates an error result. Will be thrown from the

DmitrySoshnikov

// "Fetch, decode, eval!"
// A simple Register-based VM, Assembler, and Disassembler.
// by Dmitry Soshnikov <[email protected]>

// This virtual machine (VM) consists of registers (data storage),
// and operations (instructions) which operate on the registers.

// --------------------------------------------------------------
// Registers.
// --------------------------------------------------------------

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/**
 * A simple Time travel machine to the future.
 *
 * A theoretical time-traveling to the future
 * (a very-very-very simplified explanation/application
 * of the General relativity).
 *
 * .allgemeine Relativitätstheorie
 *
 * by Dmitry Soshnikov <[email protected]>

DmitrySoshnikov

/**
 * "One second".
 *
 * Since 1967, the sample value of One Second is:
 *
 * "The duration of 9,192,631,770 periods of the radiation corresponding
 *  to the transition between the two hyperfine levels of the ground state
 *  of the caesium-133 atom."
 *
 * by Dmitry Soshnikov <[email protected]>

DmitrySoshnikov

/**
 * Sum of all elements including nested arrays.
 *
 * by Dmitry Soshnikov <[email protected]>
 * MIT Style License
 */

[1, 2, [3, 4], 5, [6, [7, 8]]].reduce(function collect(previous, current) {
  return (
    (Array.isArray(previous) ? previous.reduce(collect) : previous) +

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-module(expr).

-export([
  parse/1,
  test/0
]).

% ------------------------------------------------------
%
%   Simple math-expressions parser

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/**
 * Apply a function in needed environment.
 * Firefox only, educational purpose only.
 * by Dmitry Soshnikov <[email protected]>
 */

Function.prototype.setEnvironment = function(environment) {
  with (environment) {
    return eval(uneval(this));
  }