ezzabuzaid ezzabuzaid

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Focusing

Empirical Engineer. Creating tools is my hobby.

ezzabuzaid / Pretty way of establishing a transaction in Typeorm

Created December 2, 2020 22:13


	/**
	*
	* Wrap database calls within transaction
	*
	* @param computation an action function with {EntityManager} argument that will be executed after starting the transaction
	*
	*/
	export async function useTransaction<TResult>(computation: (manager: EntityManager) => Promise<TResult>) {
	let queryRunner = getConnection().createQueryRunner();

ezzabuzaid / compute.js

Last active April 17, 2024 05:49

Simple inline web worker helper. compute version of Dart in JavaScript.

	function compute(computation, ...message) {
	const delegate = () => {
	onmessage = ({ data: { computation, message } }) => {
	const wrapper = (fn) => Function('"use strict"; return (' + fn.toString() + ')')();
	const result = wrapper(computation)(...message);
	postMessage(result);
	};
	}
	const functionBody = delegate.toString().replace(/^[^{]{\s/, '').replace(/\s}[^}]$/, '');
	return new Promise((resolve, reject) => {

ezzabuzaid / eventemitter.js

Created May 28, 2020 22:25

Custom EventEmitter


	class EventEmitter {

	constructor() {
	this.callbacks = {};
	this.noEventYet = [];
	}

	addEventListener(eventName, callback) {
	const callbacks = this.callbacks[eventName];

ezzabuzaid / automapper.dart

Created May 19, 2020 19:18

Dart automapper to serialize and deserialize JSON

	import 'dart:mirrors';

	class Person {
	String firstname;
	String lastname;
	}

	main() {
	final json = {"firstname": "ezz", "lastname": "abuzaid"};
	Person person = deserialize(json, Person);

ezzabuzaid / ftp-upload.js

Created January 26, 2020 09:20

Upload your static site over FTP protocol using on command `node ftp-upload.js --from="localFolder" --to="serverFolder"`

	const fs = require('fs');
	const path = require('path');
	const Client = require('ftp');
	const program = require('commander');

	const client = new Client();

	client.connect({
	user: "",
	password: "",

ezzabuzaid / path-mapper.js

Created January 25, 2020 21:29

Map typescript path in node js to work with require function


	const tsconfig = require('./tsconfig.json');
	const path = require('path');
	const fs = require('fs');
	(function () {
	const sliceAsterisk = (url) => url.split('/*')[0];
	const getFilePath = (url) => {
	const urlParts = url.split('/');
	urlParts.splice(0, 1);
	return urlParts.join('/');

ezzabuzaid / sql-query-object.js

Last active December 1, 2020 16:55

create sql query using a function