kesava

// Generators

const obj = {
  a: 1,
  b: 2,
  c: 3,
};

obj[Symbol.iterator] = function *() {
  for(const k of Object.keys(obj)) {

kesava

/* Using a JavaScript proxy for a super low code REST client */
// via https://dev.to/dipsaus9/javascript-lets-create-aproxy-19hg
// also see https://towardsdatascience.com/why-to-use-javascript-proxy-5cdc69d943e3
// also see https://github.com/fastify/manifetch
// also see https://github.com/flash-oss/allserver
// and https://gist.github.com/v1vendi/75d5e5dad7a2d1ef3fcb48234e4528cb

const createApi = (url) => {
  return new Proxy({}, {
    get(target, key) {

kesava

const dict = ['computer', 'commuter', 'computation', 'computing', 'compute', 'computers'];
const letterDeletion = (word, index) => {
  if (index === 0) return false;
  let newWord = `${word.slice(0, index - 1)}${word.slice(index)}`;
  if (dict.find(w => w === newWord)) {
    return newWord;
  } else {
    return letterDeletion(word, index - 1);
  }
}

kesava

function requireAll (fn) {
  return function(...args) {
    if (fn.length === args.length) {
      return fn.apply(this, args);
    } else {
      console.error("All args are required")
      // throw new Error("All the arguments are required.");
    }
  }
}

kesava

// __tests__/example.js
jest.mock('fs');

it('should serve as a nice example', () => {

  const fs = require('fs')

  // fs can be set up at any point by calling __configureFs.
  fs.__configureFs({
    '/test': {

kesava

I am trying to work through EOPL first edition and I have made fairly good progress till chapter 5, working diligently through exercises[1]. I've been using Dr.Racket and #lang eopl[2] for the exercies.

Earlier in the the book, the authors define a couple of key macros define-record and variant-case which are used through out the book. Here is a brief usage of the macros.

(define-record leaf (number))

; that should define three methods
; a. make-leaf - constructor
; b. leaf? - predicate method
; c. leaf->number - a method to look up the members of the record

kesava

#lang racket
(require racket/syntax)
(require (for-syntax racket/syntax))
(require macro-debugger/expand)
(require syntax/parse/define)
(require
  racket/stxparam
  (for-syntax syntax/parse))

(define-syntax (define-record stx)

kesava

#!/bin/bash
iatest=$(expr index "$-" i)

#######################################################
# SOURCED ALIAS'S AND SCRIPTS BY zachbrowne.me
#######################################################

# Source global definitions
if [ -f /etc/bashrc ]; then
	 . /etc/bashrc

kesava

var obj = {"isbn": "123-456-222",  
 "author": 
    {
      "lastname": "Doe",
      "firstname": "Jane"
    },
"editor": 
    {
      "lastname": "Smith",
      "firstname": "Jane"

kesava

class LazySeq {
  constructor(low, high) {
    this.low = low;
    this.high = high;
  }
  
  head() {
    return this.low;
  }