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import java.util.Arrays;
import java.util.stream.IntStream;

public class MergeArray {
    public int[] mergeArrays(int[] array1, int[] array2) {
        return IntStream.concat(Arrays.stream(array1), Arrays.stream(array2))
                .sorted()
                .toArray();
    }
}

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// Enum version
public enum EnumSingleton {
    INSTANCE;
}

// Classic version
public class ClassicSingleton {
    private static ClassicSingleton instance;
    
    private ClassicSingleton() {}

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import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.fasterxml.jackson.databind.annotation.JsonPOJOBuilder;

import java.io.IOException;

public class JacksonDeserializer {
    public static void main(String[] args) throws IOException {
        String json = "{\"field\": \"value\"}";

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List of point to pay attention :

Completion

Description

In this item, you look for completion of the tool : if it is outdated/abandonned, actively maintained or feature complete. Obviously, you should avoid outdated/abandonned tools. If you choose an actively maintained, you have to keep in mind that you'll probably need to upgrade on releases (so you should be careful about semver practices of the maintainer).

Popularity

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// Mini error found in code from https://www.youtube.com/watch?v=ho5PnBOoacw
// You can copy-paste in your browser's f12 (I used var so that you can tweak it directly :))

var waitForEach = (fun, [head, ...tail]) =>
    !head ?
        Promise.resolve() :
        fun(head).then(waitForEach(fun, tail)) // <= ERROR here : it should be fun(head).then(() => waitForEach(fun, tail))

var log = (data) => {
    const promise = new Promise((resolve) => {

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const binaryToText = binary => binary.split(' ')
  .map(str => Number.parseInt(str, 2))
  .map(num => String.fromCharCode(num))
  .reduce((acc, next) => acc + next, "")

const textToBinary = text => text.split("")
  .map(char => char.codePointAt(0))
  .map(num => num.toString(2))
  .reduce((acc, next) => `${acc} ${next}`)

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Appeler le 1023
Courrier papier de resiliation en recommandé avec accusé de reception

nom prenom
numero ligne
numero contrat

raison
signature

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// You need to load the whole pull request because of the lazy loading feature of azureDevops
// To use it : 
// * copy the code inside a browser bookmark with 'javascript:' at the begining. 
// * Then click the bookmark when you are on the pull request page of AzureDevops
// It displays the global diff alongside the number of changed files
var changes = ['added', 'removed']
  .map(type => `.repos-compare-${type}-lines`)
  .map(css => document.querySelectorAll(css))
  .flatMap(nodes => Array.from(nodes))
  .map(e => e.textContent)

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const globalEffects = [];
const createHandler = () => {
    const effects = {};
    return {
        get: (target, prop) => {
            effects[prop] = [...globalEffects, ...(effects[prop] ?? [])];
            return target[prop];
        },
        set: (object, prop, value) => {
            object[prop] = value;

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Killer features de TDD

Notes brutes de la session du 12/07/2022 au meetup software crafter

Liste des killer features

• Pairing
  Facile d'organiser une session de pairing avec la technique du Ping-Pong
  Permet un meilleur équilibrage du partage de clavier