Code explainers tagged #grouping

public class DuplicateFinder {
 
    public Map<String, List<Path>> findDuplicates(Path root) throws IOException {
        Map<String, List<Path>> byHash = new HashMap<>();

import java.util.Comparator;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.regex.Pattern;

class DigestMailer < ApplicationMailer
  default from: "notifications@example.com"
 
  def weekly_digest(user)

use std::collections::HashMap;
 
#[derive(Debug, Clone)]
struct Row {

package api
 
func RegisterRoutes(r *gin.Engine, deps *Dependencies) {
	r.GET("/health", func(c *gin.Context) {

<?php
 
function buildTree(array $items, ?int $parentId = null): array
{

public Map<Long, List<Order>> ordersByCustomer(List<Order> orders) {
    return orders.stream()
            .collect(Collectors.groupingBy(Order::getCustomerId));
}

package com.example.logs;
 
import java.io.IOException;
import java.io.UncheckedIOException;

interface Order {
  id: number;
  customerId: string;
  total: number;

function groupBy(items, keySelector) {
  const resolveKey = typeof keySelector === 'function'
    ? keySelector
    : (item) => item[keySelector];

<?php
 
namespace App\Support;