AlexArus

type TypesOfObjectProperties<T> = {
    [K in keyof T]: T[K]
}[keyof T];

AlexArus

export type Optional<T = unknown> = null | T;
export const hasValue = <T,>(value: Optional<T>): value is T => value !== null;

AlexArus

export const localTimeZoneName = Intl.DateTimeFormat().resolvedOptions().timeZone;

export const localTimeZoneOffsetInSeconds = -new Date().getTimezoneOffset() * 60;

AlexArus

type loggerLevel = 'info' | 'error' | 'warn' | 'debug';

const log = (message: string, level: loggerLevel = 'info') => {
  console.log(`${new Date().toLocaleString()} [${level}] ${message}`)
}

/**
 * Create Logger with stopwatch
 * @param label - stopwatch logger label
 * @returns - logger wrapper with stopwatch feature

AlexArus

if [ "$color_prompt" = yes ]; then

# get current branch in git repo
function parse_git_branch() {
	BRANCH=`git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/'`
	if [ ! "${BRANCH}" == "" ]
	then
		STAT=`parse_git_dirty`
		echo "${BRANCH}${STAT}"
	else

AlexArus

import React, { Component } from 'react'
import ReactDOM from 'react-dom'
import ReactDOMServer from 'react-dom/server'

class Navigation extends Component {
  render() {
    return (
      <ul>
        <li>Main</li>
        <li>About</li>

AlexArus

/**
*   Useful keybindings for micro
*   version: 19.12.11
*   author: Alex Arus
*
*   to install put it to ~/.config/micro/bindings.json
*         +------------------------------------------------------------+
*         | Y               | U       | I       | O       | P          |
*         | add cursor above|  home   |  up     |  end    |  page up   |
*         |-----------------|---------|---------|---------|------------|

AlexArus

import { createLogger, format, transports } from 'winston';
import { loggerConfig } from '../config';
import chalk from 'chalk';

export const logger = createLogger(loggerConfig);

export const msToPrettyTime = (totalMilliseconds: number) => {
  const msInSecond = 1000;
  const secondInMinute = 60;
  const minuteInHour = 60;