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Jenya Y. jenyayel

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@jessfraz
jessfraz / boxstarter.ps1
Last active March 4, 2025 09:17
Boxstarter Commands for a new Windows box.
# Description: Boxstarter Script
# Author: Jess Frazelle <[email protected]>
# Last Updated: 2017-09-11
#
# Install boxstarter:
# . { iwr -useb http://boxstarter.org/bootstrapper.ps1 } | iex; get-boxstarter -Force
#
# You might need to set: Set-ExecutionPolicy RemoteSigned
#
# Run this boxstarter by calling the following from an **elevated** command-prompt:
@singledigit
singledigit / cognito.yaml
Last active December 11, 2024 10:03
Create a Cognito Authentication Backend via CloudFormation
AWSTemplateFormatVersion: '2010-09-09'
Description: Cognito Stack
Parameters:
AuthName:
Type: String
Description: Unique Auth Name for Cognito Resources
Resources:
# Creates a role that allows Cognito to send SNS messages
SNSRole:
@aaronshaf
aaronshaf / generator.js
Last active May 13, 2022 11:00
Use async generators and async iterators with DynamoDB's scan
const { docClient } = require('../services/dynamodb')
exports.findAllItems = async function* () {
let response = {}
let ExclusiveStartKey
do {
response = await docClient.scan({
TableName: 'mytable',
Limit: 500,
ExclusiveStartKey
@wojteklu
wojteklu / clean_code.md
Last active April 25, 2025 12:19
Summary of 'Clean code' by Robert C. Martin

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

General rules

  1. Follow standard conventions.
  2. Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
  3. Boy scout rule. Leave the campground cleaner than you found it.
  4. Always find root cause. Always look for the root cause of a problem.

Design rules

@NickCraver
NickCraver / Windows10-Setup.ps1
Last active February 6, 2025 04:09
(In Progress) PowerShell Script I use to customize my machines in the same way for privacy, search, UI, etc.
##################
# Privacy Settings
##################
# Privacy: Let apps use my advertising ID: Disable
Set-ItemProperty -Path HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\AdvertisingInfo -Name Enabled -Type DWord -Value 0
# To Restore:
#Set-ItemProperty -Path HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\AdvertisingInfo -Name Enabled -Type DWord -Value 1
# Privacy: SmartScreen Filter for Store Apps: Disable
Set-ItemProperty -Path HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\AppHost -Name EnableWebContentEvaluation -Type DWord -Value 0
@non
non / answer.md
Last active February 28, 2025 11:46
answer @nuttycom

What is the appeal of dynamically-typed languages?

Kris Nuttycombe asks:

I genuinely wish I understood the appeal of unityped languages better. Can someone who really knows both well-typed and unityped explain?

I think the terms well-typed and unityped are a bit of question-begging here (you might as well say good-typed versus bad-typed), so instead I will say statically-typed and dynamically-typed.

I'm going to approach this article using Scala to stand-in for static typing and Python for dynamic typing. I feel like I am credibly proficient both languages: I don't currently write a lot of Python, but I still have affection for the language, and have probably written hundreds of thousands of lines of Python code over the years.

@jboner
jboner / latency.txt
Last active April 27, 2025 10:07
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD