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albulescu / coordinates_distance.js
Last active March 9, 2023 03:49
Distance between two coordinates
function distance(lon1, lat1, lon2, lat2) {
const R = 6371e3; // metres
const Q1 = lat1 * Math.PI / 180;
const Q2 = lat2 * Math.PI / 180;
const DP = (lat2 - lat1) * Math.PI / 180;
const DA = (lon2 - lon1) * Math.PI / 180;
const a = Math.sin(DP / 2) * Math.sin(DP / 2) +
Math.cos(Q1) * Math.cos(Q2) *
@albulescu
albulescu / example.js
Created February 16, 2020 02:00 — forked from dasblitz/example.js
React createFetcher explained
// This gist aims to explain how it's possible that async functions inside React
// using createFetcher(Promise).next(key) can work.
// A possible implementation of the new createFetcher function
// as shown by https://twitter.com/jamiebuilds/status/969169357094842368
// @param method, should be a function returning a Promise.
// @returns an object with a property 'read', used to read values from the resolved 'cache'.
const createFetcher = function(method) {
// First create a Map for the resolved values.
const resolved = new Map()

Current iteration #3

1. Booking

1.1 Classes Backend 90%

Backend functionality for classes/booking notification when creating a class and so on

1.2 Search booking UI 50% -> 70% -> 99% ( Bugs remaning )

Questions

1. What is the output of the following program?

package main
import "fmt"
type User struct {
	Name string
}
var user User

Refactoring Proposal

Plan

  • Decouple backend from meteor and create new application
  • Rewrite front-end functionality using new designs
  • Continous deploy for live preview
    • Frontend on beta.nerdly.io
    • Backend on api.nerdly.io
  • Focus on things from MVP and what is already done

Code Audit:

Meteor drawbacks:

I. You're stick to the "normal" way of Meteor development and you can't work how you want without installing a package that do some job. That also might be no problem because packages do more than what you want and this increase filesize and this will increase the loading time of the app.

II. Its hard to debug, when there are problems. Its very hard to investigate and find a solution and this increase development time

III. The current app is bound to unnecessary external services like

@EventBusBind
@Component({
selector: 'wpci-header',
templateUrl: './header.component.html',
styleUrls: ['./header.component.less']
})
export class HeaderComponent implements OnInit {
ngOnInit() {}
@albulescu
albulescu / localstorage_property.ts
Created December 15, 2016 21:53
Local Storage Property Binding
export function LocalStorageProperty(property:string) {
return function(target: any, propertyKey: string | symbol) {
var _ref_ = window['Reflect'];
var meta, type;
if(_ref_.getMetadata) {
meta = _ref_.getMetadata('design:type', target, propertyKey);
var result = /^function\s+([\w\$]+)\s*\(/.exec( meta.toString() )
var fnName = result ? result[ 1 ] : '';
if(fnName && fnName.length) {
<td md-cell>
<div ng-if="!result.osd.csmInstruction || result.enableFlag">
<md-select ng-if="!$ctrl.cp" name="status" ng-init="result.enableFlag='true'" ng-model="result.osd.csmInstruction" aria-label="status" placeholder="Select">
<md-option value="">Select</md-option>
<md-option value="Hold for Decision">Hold for Decision</md-option>
</md-select>
<span ng-if="$ctrl.cp">
{{result.status | na}}
</span>
</div>
@albulescu
albulescu / YamahaProtocol.md
Last active December 5, 2023 09:48
Yamaha Protocol

API

Requests

POST - /YamahaRemoteControl/ctrl

CURL

curl -X POST "http://192.168.0.100/YamahaRemoteControl/ctrl" \