codesnips

context

javascript 
import { useState, useEffect, useCallback } from 'react';

export function useLocalStorage(key, initialValue) {
  const readValue = useCallback(() => {
    if (typeof window === 'undefined') return initialValue;
    try {

Persist a React Shopping Cart to localStorage with a Context Provider

javascript react context
by codesnips 3 tabs
python 
from django.conf import settings
from datetime import datetime


def site_settings(request):
    """Add site-wide settings to template context."""

Django context processors for global template variables

django python templates
by Priya Sharma 2 tabs
go 
package health

import (
	"context"
	"sync"
	"time"

Concurrent Readiness Health Check Endpoint in Go with Timeouts

go health-check readiness
by codesnips 3 tabs
go 
package logctx

import (
	"context"
	"log/slog"
)

Request-Scoped Structured Logging with slog and Context in Go

go logging slog
by codesnips 3 tabs
typescript 
export interface CartItem {
  id: string;
  name: string;
  price: number;
  quantity: number;
}

Type-Safe Shopping Cart with useReducer, Context, and a useCart Hook

react context usereducer
by codesnips 4 tabs
go 
package limit

import (
  "context"

  "golang.org/x/sync/semaphore"

Concurrency limiting with a context-aware semaphore

go concurrency context
by Leah Thompson 1 tab
javascript 
import { createContext, useCallback, useContext, useEffect, useMemo, useState } from 'react';

export const RouterContext = createContext(null);

export function RouterProvider({ children }) {
  const [path, setPath] = useState(() => window.location.pathname);

Client-Side Router with useRoute Hook and History API in React

react router hooks
by codesnips 3 tabs
go 
package apiclient

import (
	"context"
	"fmt"
	"io"

Sharing a golang.org/x/time/rate Limiter Across Goroutines for Outbound API Calls

go rate-limiting concurrency
by codesnips 3 tabs
go 
package fetch

import (
	"context"
	"net/http"

Bounded Fan-Out With Worker Pool, errgroup, and Result Collection in Go

go concurrency goroutines
by codesnips 3 tabs