musab

type MenuConfig = {title?: string, body?: string, buttonText?: string, cancellable?: boolean};

function createMenu(config: MenuConfig) {
  const menuConfig = Object.assign({
    title: 'Foo',
    body: 'Bar',
    buttonText: 'Baz',
    cancellable: true
  }, config);
}

musab

import { performance } from 'perf_hooks'

const start = performance.now();

doSomething();   // <---- The function you're measuring time for 

const end = performance.now();

console.log("Call to doSomething took " + (end - start) + " milliseconds.")

musab

Kubernetes terminology:

1. Pods

• Group of containers, and is the smallest unit that Kubenetes adminsters. Pods have a single IP address that is applied to every container withiun the pod. ner.

2. Deployments

• Define the scale at which you want to run your application by letting you set the details of how you would like the pods replicated on your Kubenertes pods.

3. Services

• Kubernetes doesn’t treat its pods as unique, long-running instances; if a pod encounters an issue and dies, it’s Kubernetes’ job to replace it so that the application doesn’t experience any downtime.

musab

export class Statistics {
  /**
   * Returns the average of two numbers.
   *
   * @remarks
   * This method is part of the {@link core-library#Statistics | Statistics subsystem}.
   *
   * @param x - The first input number
   * @param y - The second input number
   * @returns The arithmetic mean of `x` and `y`

musab

// https://lazau.com/articles/good_commit_messages.html

Short summary of 50 chars or less.

Detailed text which can span multiple paragraphs. Each paragraph
should be line wrapped at 72 chars.

Relevant Links:
- https://myco.atlassian.net/browse/TICKET-32138

musab

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

musab

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

musab

TZ='UTC'
NODE_ENV=development
PORT=8000
API_TOKEN=c03ec4d8-3cbe-43ff-98f8-f010cb5cb45e
MIGRATION_DB_HOST=localhost
MIGRATION_DB_PORT=5432
MIGRATION_DB_name=noted
MIGRATION_DB_USER=postgres
MIGRATION_DB_PASS=B3Th3B3st
DATABASE_URL='postgres://postgres:B3Th3B3st@localhost/notes'

musab

Run a docker image

docker run nginx

Run a specific tag of a docker image

docker run redis:4.0

List all running containers

musab

// you can play with the code via https://go.dev/play/p/bVfCe51O0en

package main

import "fmt"

// src/add.go

type Adder interface {
	add(int, int) int