lilpolymath

Question

Implement Promise based memoization with a given cache size behaving as an LRU cache with an expiry time and auto cache burst.

Answer

First, what we have to do is breakdown the terms in the problem statement to understand what is going on and what we are asked to do.

1. Promise based memoization: Memoization is one of the ways we can improve the performance of functions by eliminating redundant calls. Memoization is a technique where we store the results of a function call in a cache and return the result from the cache if the function is called again with the same arguments.

vicgonvt

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title: Setting Up Laravel in Ubuntu / DigitalOcean keywords: servers, laravel, coderstape, coder's tape description: Let's take a look at settting up a server from scratch for Laravel. date: April 1, 2019 tags: servers, laravel permalink: setting-up-laravel-in-ubuntu-digitalocean img: https://coderstape.com/storage/uploads/GZTXUbyGum2xeUZM9qBD5aPv8EKLwG3C8RGcRon4.jpeg author: Victor Gonzalez authorlink: https://github.com/vicgonvt

troatie

trait CreatesWithLock
{
  public static function updateOrCreate(array $attributes, array $values = [])
  {
    return static::advisoryLock(function () use ($attributes, $values) {
      // emulate the code found in Illuminate\Database\Eloquent\Builder
      return (new static)->newQuery()->updateOrCreate($attributes, $values);
    });
  }

arsho

Add SSH Key to Bitbucket / Github in Ubuntu 16.04

What does SSH Keys do in Github / Bitbucket?

Set up SSH to reduce the risk of exposing your username and password. Some reasons you might want to use SSH key base authentication:

• Is more effective if you push and pull from Bitbucket many times a day.
• Removes the need to enter a password each time you connect.

dbshoupe

import axios from 'axios';
import store from "@/data/state"

class Http {
  
  constructor() {
    let service = axios.create({});
    service.interceptors.request.use((config) => {
      config.headers.common['x-access-token'] = store.state.token
      return config

wojteklu

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.

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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

bmaupin

#!/bin/bash

# Cache sudo password
sudo -v

# Get latest OpenSSL 1.0.2 version from https://openssl.org/source/
# v1.1.0 seems to have removed SSLv2/3 support
openssl_version=1.0.2k

# Install build dependencies

FremyCompany

Spoiler pages for the FindNearbyWords challenge

The goal of the exercise is to find an efficient way to take an existing word and lookup all words in a dictionary that differ from the original by only a single character. This is the kernel function for larger algorithmic problems like the Word Ladder, where you try to find the shortest route between two words, by changing one character at a time, and where each intermediate step must be in an intial dictionary of words.

Bruce Force

The simplest algorithm possible will take the input word and then compare it against every word in the dictionary, character by character, and count the differences. If the character differences between the word are just 1, then we add it to our list, otherwise we reject it. JavaScript has the Array.filter method which does precisely what we want and we just supply a function which returns true or false depending on if our criterion are met.

It is possible to optimize differsByOne further to get more benefits, but given t

hofmannsven

MySQL

Getting started

• http://www.sqlteaching.com/
• https://www.codecademy.com/learn/learn-sql
• https://www.codecademy.com/catalog/language/sql

Related tutorials

• MySQL-CLI
• Analyzing Business Metrics