aperkaz

async function asyncForEach<T>(
  array: T[],
  callback: (el: T, index: number, array: T[]) => Promise<void>
) {
  for (let index = 0; index < array.length; index++) {
    await callback(array[index], index, array);
  }
}

aperkaz

Introduction to DynamoDB

NoSQL databased, by AWS. Key-value store.

deep dive video

Key features

• Fully managed. Autoscaling, partitioning...
• Key-value store. NoSQL DB, but relational (all data stored in a DB is relational!)

aperkaz

Terraform

Infrastructure as a code technology. Helps you manage your backend infrastructure on 3rd party services like amazon with configurations.

This gist is a short introduction to the basics of Terraform.

Main concepts

Terraform uses its own language to define how your backend should look like, and it figues out automatically how to spin it yup in an efficient manner, using a dependency graph between components.

aperkaz

(async () => {
  const got = require("got");
  const publicIp = require("public-ip");

  // get public ip
  const publicIpV4 = await publicIp.v4();

  // get location from ip
  try {
    const response = await got(`http://ip-api.com/json/${publicIpV4}`);

aperkaz

const INVALID = -1;

const binarySearch = (target,  arr) => {
  const start = 0;
  const finish = arr.length - 1;
  const middle = Math.floor((start + finish) / 2);
  
  console.log(arr);
  console.log('middle value: ',arr[middle]);
  

aperkaz

:100000000C94C3030C94E0030C94E0030C94E00301
:100010000C94E0030C94E0030C94E0030C94E003D4
:100020000C94E0030C94E0030C942C2B0C94FE2B0A
:100030000C9492230C94E0030C94E0030C94E003E2
:100040000C94E0030C94E0030C94E0030C94E003A4
:100050000C94E0030C94FA230C94E0030C94E0035A
:100060000C94E0030C94E0030C94E0030C94E00384
:100070000C94E0030C94E0030C94E0030C94E00374
:100080000C94E0030C94E0030C94E0030C94E00364
:100090000C94E0030C94E0030C94E0030C94E00354

aperkaz

{
  "window.title": "${dirty} ${activeEditorMedium}${separator}${rootName}",
  "editor.formatOnPaste": true,
  "editor.fontFamily": "Operator Mono",
  "terminal.integrated.fontFamily": "Fira Code",
  "terminal.integrated.fontSize": 14,
  "terminal.integrated.lineHeight": 1.5,
  "editor.fontSize": 18,
  "editor.renderWhitespace": "boundary",
  "editor.autoIndent": true,

aperkaz

Linux Scaling

Force scaling of applications when in HiDPI screens.

Add to the command, X being the scale factor:

--force-device-scale-factor=X

Example, execute Spotify with 2x scaling:

aperkaz

Hotkeys

Save to file

dconf dump /org/gnome/desktop/wm/keybindings/ > keybindings.dconf

Load from file

dconf load /org/gnome/desktop/wm/keybindings/ < keybindings.dconf

aperkaz

; Global settings for redshift
[redshift]
; Set the day and night screen temperatures
temp-day=5300
temp-night=3500

; Enable/Disable a smooth transition between day and night
; 0 will cause a direct change from day to night screen temperature.
; 1 will gradually increase or decrease the screen temperature.
transition=1