Jishan Shaikh jishanshaikh4

C++ Pointer Tutorial

Because pointers can be ugh

"Regular" variables (not pointers)

To understand a pointer, let's review "regular" variables first. If you're familiar with a programming language without pointers like JavaScript, this is what you think when you hear "variable".

When declaring a variable by identifier (or name), the variable is synonymous with its value.

Useful Node Packages

List of useful node packages

Express

A Node Web framework

npm i express --save

async/await is just the do-notation of the Promise monad

CertSimple just wrote a blog post arguing ES2017's async/await was the best thing to happen with JavaScript. I wholeheartedly agree.

In short, one of the (few?) good things about JavaScript used to be how well it handled asynchronous requests. This was mostly thanks to its Scheme-inherited implementation of functions and closures. That, though, was also one of its worst faults, because it led to the "callback hell", an seemingly unavoidable pattern that made highly asynchronous JS code almost unreadable. Many solutions attempted to solve that, but most failed. Promises almost did it, but failed too. Finally, async/await is here and, combined with Promises, it solves the problem for good. On this post, I'll explain why that is the case and trace a link between promises, async/await, the do-notation and monads.

First, let's illustrate the 3 styles by implementing

	"use strict";

	var soap = require('strong-soap').soap;
	var fetch = require('node-fetch');
	var url = 'http://localhost:8000/test?wsdl';

	var options = {
	endpoint: 'http://localhost:8000/test'
	};
	var requestArgs = {

	// *****************************************************************************************
	// *****************************************************************************************
	// *****************************************************************************************
	// **************************************PC SA Main Script******************************
	// *****************************************************************************************
	// *****************************************************************************************
	// *****************************************************************************************

	SCRIPT_NAME MAIN //NEW MAIN

	find_thumbnail(){
	full_path="file://$(realpath -s "$1")"
	md5name=$(printf %s "${full_path// /%20}" \| md5sum)
	find ~/.thumbnails/ ~/.cache/thumbnails/ -name "${md5name%% *}.png"
	}


	Usage:
	======
	find_thumbnail /path/to/file.bmp

	async function jsonFetch<T>(
	url: string,
	options: RequestInit = {}
	): Promise<T> {
	// Set the default headers correctly
	const headers: HeadersInit = new Headers(options.headers);
	headers.set('Accept', 'application/json');
	headers.set('Content-Type', 'application/json');

	return fetch(url, {

	/* Bundle Includes:
	* sjcl.js
	* nodedec.js
	* js/vendor/jquery.js
	* js/jquery.protect.js
	*/

	/** @fileOverview Javascript cryptography implementation.
	*
	* Crush to remove comments, shorten variable names and