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Leonardo Del Gesso leomdg

  • Amsterdam, Netherlands
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@jwbee
jwbee / jq.md
Last active April 5, 2025 13:06
Make Ubuntu packages 90% faster by rebuilding them

Make Ubuntu packages 90% faster by rebuilding them

TL;DR

You can take the same source code package that Ubuntu uses to build jq, compile it again, and realize 90% better performance.

Setting

I use jq for processing GeoJSON files and other open data offered in JSON format. Today I am working with a 500MB GeoJSON file that contains the Alameda County Assessor's parcel map. I want to run a query that prints the city for every parcel worth more than a threshold amount. The program is

# Source: https://gist.github.com/vfarcic/78c1d2a87baf31512b87a2254194b11c
###############################################################
# How To Create A Complete Internal Developer Platform (IDP)? #
# https://youtu.be/Rg98GoEHBd4 #
###############################################################
# Additional Info:
# - DevOps MUST Build Internal Developer Platform (IDP): https://youtu.be/j5i00z3QXyU
# - How To Create A "Proper" CLI With Shell And Charm Gum: https://youtu.be/U8zCHA-9VLA
@System-Glitch
System-Glitch / go-worker.go
Last active May 10, 2024 15:57
A resilient Go worker
package main
// This is an example of a resilient worker program written in Go.
//
// This program will run a worker, wait 5 seconds, and run it again.
// It exits when SIGINT or SIGTERM is received, while ensuring any ongoing work
// is finished before exiting.
//
// Unexpected panics are also handled: program won't crash if the worker panics.
// However, panics in goroutines started by the worker won't be handled and have
@vkarpov15
vkarpov15 / promise1.js
Created April 5, 2018 12:38
Write Your Own Node.js Promise Library from Scratch, Part 1
class MyPromise {
constructor(executor) {
if (typeof executor !== 'function') {
throw new Error('Executor must be a function');
}
// Internal state. `$state` is the state of the promise, and `$chained` is
// an array of the functions we need to call once this promise is settled.
this.$state = 'PENDING';
this.$chained = [];
@JamieMason
JamieMason / .babelrc
Created December 5, 2016 08:41
Tree-Shaking with Babel 6, Webpack 2, and React.
{
"presets": [
["es2015", {
"es2015": {
"loose": true,
"modules": false
}
}], "react"
]
}
@hallettj
hallettj / Makefile
Last active December 10, 2023 13:32
Makefile for transpiling with Babel & Flow in a Node app, or in a client- or server-side shared library
# Makefile for transpiling with Babel in a Node app, or in a client- or
# server-side shared library.
.PHONY: all clean
# Install `babel-cli` in a project to get the transpiler.
babel := node_modules/.bin/babel
# Identify modules to be transpiled by recursively searching the `src/`
# directory.
@yoavniran
yoavniran / ultimate-ut-cheat-sheet.md
Last active March 24, 2025 20:20
The Ultimate Unit Testing Cheat-sheet For Mocha, Chai, Sinon, and Jest
@xero
xero / irc.md
Last active April 17, 2025 15:44
irc cheat sheet
@cletusw
cletusw / .eslintrc
Last active March 20, 2025 17:17
ESLint Reset - A starter .eslintrc file that resets all rules to off and includes a description of what each rule does. From here, enable the rules that you care about by changing the 0 to a 1 or 2. 1 means warning (will not affect exit code) and 2 means error (will affect exit code).
{
// http://eslint.org/docs/rules/
"ecmaFeatures": {
"binaryLiterals": false, // enable binary literals
"blockBindings": false, // enable let and const (aka block bindings)
"defaultParams": false, // enable default function parameters
"forOf": false, // enable for-of loops
"generators": false, // enable generators
"objectLiteralComputedProperties": false, // enable computed object literal property names
@ericelliott
ericelliott / essential-javascript-links.md
Last active March 22, 2025 17:28
Essential JavaScript Links