React JS Light to Dark Mode Using Tailwind with Source Code

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Seamless React JS and Next JS Light to Dark Mode Switching: A Tailwind CSS Guide with Downloadable Source Code


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In the dynamic world of web development, providing users with the ability to toggle between light and dark modes has become an essential feature. In this guide, we'll explore the process of effortlessly implementing React JS Light to Dark Mode using the powerful styling utility, Tailwind CSS. Plus, we're offering you a valuable resource – the complete source code for download – to jumpstart your project and accelerate your development.

Why Implement Light to Dark Mode in React JS?

Enhancing user experience is at the forefront of modern web development, and the option to switch between light and dark modes has become a user expectation. Offering this choice adds a touch of personalization and addresses concerns such as eye strain during extended usage in varying lighting conditions.



"use client";
import { useState } from "react";
import { useRouter } from "next/navigation";
import { signIn } from "next-auth/react";
import { useSession } from 'next-auth/react';
import { redirect } from 'next/navigation';
import LoginIcon from '@mui/icons-material/Login';
import Switch from '@mui/material/Switch';
// import { setCookie, deleteCookie } from "cookies-next";

export default function Home() {
  const router = useRouter();
  const { data: session } = useSession();
  const darkMode = "bg-[#242B4D] text-gray-50";
  const lightMode = "bg-[#FFFFFF] text-gray-900";
  const [colorMode, setColorMode] = useState(darkMode);
  const [checked, setChecked] = useState(false);

  const handleChange = () => {
    setChecked((prev) => !prev);
    if (checked) {
      setColorMode(darkMode);
    } else {
      setColorMode(lightMode);
    }
  };

  if (session) {
    let user = session["user"];
    console.log('Session User ', user);
    // setCookie("logged", "true", { maxAge: 60 * 60 * 24 * 30 });
    redirect('/dashboard');
  }

  return (
    <>
      <div className="flex justify-center mt-16">
        <div style={{ position: 'fixed', top: 16, right: 16 }}>
          <Switch
            checked={checked}
            onChange={handleChange}
            inputProps={{ 'aria-label': 'controlled' }}
          />
        </div>
        <div style={{ minWidth: "30%" }}>
          <div className={`shadow-lg flex min-h-full flex-1 flex-col
justify-center px-6 py-12 lg:px-8 ${colorMode}`}>
            <div className="sm:mx-auto sm:w-full sm:max-w-sm">
              <div className="flex justify-center">
                <LoginIcon sx={{ fontSize: 50 }} />
              </div>
              <h2 className={`mt-10 text-center text-2xl font-bold leading-9 tracking-tight`} >
                Sign in to your account
              </h2>
            </div>

            <div className="mt-10 sm:mx-auto sm:w-full sm:max-w-sm">
              <form className="space-y-6" action="#" method="POST">
                <div>
                  <label
                    htmlFor="email"
                    className="block text-sm font-medium leading-6"
                  >
                    Email address
                  </label>
                  <div className="mt-2">
                    <input
                      id="email"
                      name="email"
                      type="email"
                      autoComplete="email"
                      className="block w-full rounded-md border-0 py-1.5
text-gray-900 shadow-sm ring-1 ring-inset ring-gray-300
placeholder:text-gray-400 focus:ring-2 focus:ring-inset
focus:ring-indigo-600 sm:text-sm sm:leading-6"
                    />
                  </div>
                </div>

                <div>
                  <div className="flex items-center justify-between">
                    <label
                      htmlFor="password"
                      className="block text-sm font-medium leading-6"
                    >
                      Password
                    </label>
                    <div className="text-sm">
                      <a
                        href="#"
                        className="font-semibold text-indigo-600 hover:text-indigo-500"
                      >
                        Forgot password?
                      </a>
                    </div>
                  </div>
                  <div className="mt-2">
                    <input
                      id="password"
                      name="password"
                      type="password"
                      autoComplete="current-password"
                      className="block w-full rounded-md border-0 py-1.5
text-gray-900 shadow-sm ring-1 ring-inset ring-gray-300
placeholder:text-gray-400 focus:ring-2 focus:ring-inset
focus:ring-indigo-600 sm:text-sm sm:leading-6"
                    />
                  </div>
                </div>
                <div>
                  <button
                    onClick={() => {
                      router.push("/dashboard");
                    }}
                    className="flex w-full justify-center rounded-md
bg-indigo-600 px-3 py-1.5 text-sm font-semibold leading-6 text-white
shadow-sm hover:bg-indigo-500 focus-visible:outline
focus-visible:outline-2 focus-visible:outline-offset-2
focus-visible:outline-indigo-600"
                  >
                    Sign in
                  </button>
                </div>
                <div>
                  <button
                    onClick={() => signIn("google")}
                    className="flex w-full justify-center rounded-md
bg-indigo-600 px-3 py-1.5 text-sm font-semibold leading-6 text-white
shadow-sm hover:bg-indigo-500 focus-visible:outline
focus-visible:outline-2 focus-visible:outline-offset-2
focus-visible:outline-indigo-600"
                  >
                    <div className="flex">
                      Sign in with Google
                      <span className="mx-3">
                        <svg
                          width="24"
                          height="24"
                          viewBox="0 0 24 24"
                          fill="none"
                          xmlns="http://www.w3.org/2000/svg"
                        >
                          <rect width="24" height="24" fill="none" />
                          <path
                            fillRule="evenodd"
                            clipRule="evenodd"
                            d="M23.04 12.2614C23.04 11.4459 22.9668 10.6618
22.8309 9.90909H12V14.3575H18.1891C17.9225 15.795 17.1123 17.013 15.8943
17.8284V20.7139H19.6109C21.7855 18.7118 23.04 15.7636 23.04 12.2614Z"
                            fill="#4285F4"
                          />
                          <path
                            fillRule="evenodd"
                            clipRule="evenodd"
                            d="M12 23.4998C15.105 23.4998 17.7081 22.4701 19.6109
20.7137L15.8943 17.8282C14.8645 18.5182 13.5472 18.926 12 18.926C9.00474 18.926 6.46951
16.903 5.56519 14.1848H1.72314V17.1644C3.61542 20.9228 7.50451 23.4998 12 23.4998Z"
                            fill="#34A853"
                          />
                          <path
                            fillRule="evenodd"
                            clipRule="evenodd"
                            d="M5.56523 14.1851C5.33523 13.4951 5.20455 12.758
5.20455 12.0001C5.20455 11.2421 5.33523 10.5051 5.56523 9.81506V6.83551H1.72318C0.944318
8.38801 0.5 10.1444 0.5 12.0001C0.5 13.8557 0.944318 15.6121 1.72318 17.1646L5.56523 14.1851Z"
                            fill="#FBBC05"
                          />
                          <path
                            fillRule="evenodd"
                            clipRule="evenodd"
                            d="M12 5.07386C13.6884 5.07386 15.2043 5.65409 16.3961
6.79364L19.6945 3.49523C17.7029 1.63955 15.0997 0.5 12 0.5C7.50451 0.5 3.61542 3.07705
1.72314 6.83545L5.56519 9.815C6.46951 7.09682 9.00474 5.07386 12 5.07386Z"
                            fill="#EA4335"
                          />
                        </svg>
                      </span>

                    </div>
                  </button>
                </div>
              </form>

              <p className="mt-10 text-center text-sm text-gray-500">
                Not a member?{" "}
                <span
                  className="font-semibold leading-6 text-indigo-600 hover:text-indigo-500
cursor-pointer"
                  onClick={() => {
                    router.push("/signup");
                  }}
                >
                  Start a 14 day free trial
                </span>
              </p>
            </div>
          </div>
        </div>
      </div>
    </>
  );
}


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