felipeblassioli

Merging options and defaults

1. Use the spread operator with type inference:

export function cache<T extends (...args: any[]) => any, KeyType, ResultType, ErrorType>(
  fn: T,
  options: Partial<ICacheOptions<KeyType, ResultType, ErrorType>> = {}
): T {
  const mergedOptions: ICacheOptions<KeyType, ResultType, ErrorType> = {

felipeblassioli

//
// Études: Quirks and Implications of Numbers in JavaScript
//
// Reading:
// - [Here is what you need to know about JavaScript’s Number type - Max Koretskyi](https://medium.com/angular-in-depth/javascripts-number-type-8d59199db1b6)
// Quotes:
// > Why 0.1+0.2 IS NOT equal to 0.3 and 9007199254740992 IS equal to 9007199254740993
// 
// > According to the ECMAScript standard, there is only one type for numbers and it is the ‘double-precision 64-bit 
// > binary format IEEE 754 value’. This type is used to store both integers and fractions and is the equivalent of `double` 

felipeblassioli

Coming from Python I wanted to write something like this:

@trace('name', opts)
def business_logic(foo, bar):
   return 0

To use opentelemetry in specific function and having goodies like putting relevant stuff in the context.

felipeblassioli

trait Logger {
  protected def formatMessage(message: String): String

  def log(message: String): Unit = {
    println(formatMessage(message))  
  }

  // Nested case class inside the trait
  case class LogEntry(timestamp: Long, content: String)
}

felipeblassioli

import timeit

def test_performance(code, setup='pass', TIMES=10):
	avg = lambda l: sum(l)/len(l)
	result = timeit.Timer(code, setup).repeat(3,10)
	print avg(result)

NESTED_FOR = """
for x in xrange(1000):
    for y in xrange(1000):

felipeblassioli

      var usersStream = Bacon.interval(3000)
                .filter(function(){ return this.state.mode === "users" }.bind(this))
                .flatMapLatest(function(){
                    var store = this.state.selectedStore;
                    return Bacon.fromPromise( $.ajax({
                      type: 'GET',
                      url: '/users/',
                      data: {store_id: store.id}
                    }) );
                }.bind(this))

felipeblassioli

# -*- coding: utf-8 -*-
import cv2
import numpy as np

feature_detectors = [
	"FAST",
	"STAR",
	"SIFT",
	"SURF",
	"ORB",

felipeblassioli

POST http://rms-prep-sa.foodity.com/api/v2/recipes
Request BODY BEGIN
p_ingredients=tomato&fields=recipe_id%2Ctitle%2Cshort_title%2Cingredients%2Cmethods%2Cserves%2Ccook_time%2Cdifficulties%2Cassets%2Crelated_recipes&api_key=9HSRMDKDKXSSSLD4IOJJQHJMADRBWB&lang=en-GB&page_size=20
Request BODY END

Response:
{
    "page_start": 0, 
    "data": [
        {

felipeblassioli

POST http://rms-prep-sa.foodity.com/api/v2/recipes
Request BODY BEGIN
p_ingredients=tomato%2Conion&fields=recipe_id%2Ctitle%2Cshort_title%2Cingredients%2Cmethods%2Cserves%2Ccook_time%2Cdifficulties%2Cassets&api_key=9HSRMDKDKXSSSLD4IOJJQHJMADRBWB&lang=en-GB&page_size=20
Request BODY END

Response:
{
    "page_start": 0, 
    "data": [
        {

felipeblassioli

POST http://rms-prep-sa.foodity.com/api/v2/recipes
Request BODY BEGIN
p_ingredients=tomato&fields=recipe_id%2Ctitle%2Cshort_title%2Cingredients%2Cmethods%2Cserves%2Ccook_time%2Cdifficulties%2Cassets&api_key=9HSRMDKDKXSSSLD4IOJJQHJMADRBWB&lang=en-GB&page_size=20
Request BODY END

Response:
{
    "page_start": 0, 
    "data": [
        {