bonjour j'aurais besoin d'aide pour un system de connexion

bonjour je souhaiterais integrer un system de connexion en localstorage sur mon site mais je n'y arrive pas a l'integrer

Code:

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<!DOCTYPE html>
<html lang="en">
 
<head>
 
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="connexion.css">
    <link rel="stylesheet" href="../Header/header.css">
</head>
 
<body>
    <div class="all">
        <div class="div-logo">
            <a href="../Acceuil/Acceuil.html"><img src="../imgasset/LOGO.png" alt="" height="83"></a>
        </div>
        <header class="main-header">
            <nav>
                <ul class="ul-liste">
                    <li class="ul-surli"> <a class="a-liens-nav" href="../comment participer/comment participer.html">Participez </a></li>
                    <li class="ul-surli"> <a class="a-liens-nav" href="../les vainqueurs/vainqueurs.html">Top recette </a></li>
                    <li class="ul-surli"> <a class="a-liens-nav" href="../versus/versus.html">Versus </a></li>
                    <li class="ul-surli"> <a class="a-liens-nav" href="../partenaire/partenaire-2.html">Partenaires </a></li>
                    <li class="ul-surli"> <a class="a-liens-nav" href="../connexion/connexion.html">Connexion </a></li>
                </ul>
            </nav>
        </header>
    </div>
    <form onsubmit="loginFunc()">
 
        <h2>Connexion</h2>
        <p class="choose-email">IDENTIFICATION OU E-MAIL*</p>
        <input type="email"  placeholder="email">
 
        <p class="password">MOT DE PASSE*</p>
        <input  type="password"  placeholder="Mot de passe"> 
<div>
 
    <button type="submit">IDENTIFICATION</button>
    <bienvenue id="'result" >bienvenue </p>
</div>
 
 
        <a href="inscription.html" class="inscription">Crée votre compte. </a>
 
 
 
    </form>
    <script src="connexion.js"></script>
</body>
 
</html>

ma page connexion, et pour la page inscription:

Code:

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<!DOCTYPE html>
<html lang="en">
 
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <link rel="stylesheet" href="inscription.css">
  <link rel="stylesheet" href="../Header/header.css">
</head>
 
<body>
  <div class="all">
    <div class="div-logo">
      <a href="../Acceuil/Acceuil.html"><img src="../imgasset/LOGO.png" alt="" height="83"></a>
    </div>
    <header class="main-header">
      <nav>
        <ul class="ul-liste">
          <li class="ul-surli"> <a class="a-liens-nav" href="../comment participer/comment participer.html">Participez </a></li>
                    <li class="ul-surli"> <a class="a-liens-nav" href="../les vainqueurs/vainqueurs.html">Top recette </a></li>
                    <li class="ul-surli"> <a class="a-liens-nav" href="../versus/versus.html">Versus </a></li>
                    <li class="ul-surli"> <a class="a-liens-nav" href="../partenaire/partenaire-2.html">Partenaires </a></li>
                    <li class="ul-surli"> <a class="a-liens-nav" href="../connexion/connexion.html">Connexion </a></li>
        </ul>
      </nav>
    </header>
  </div>
<form onsubmit="signup()">
 
  <main class="conteneur">
    <h1>INSCRIPTION</h1>
    <div class="flex-row centre">
      <div class="cadre ligne">
        <p class="choose-username">VOTRE NOM*</p>
        <input class="cadre" type="username" placeholder="Prénom & Nom">
        <p class="choose-email">E-MAIL*</p>
        <input class="cadre" type="email" placeholder="email">
        <p class="password">MOT DE PASSE*</p>
        <input class="cadre" type="password" placeholder="MOT DE PASSE">
        <p class="password">CONFIRMEZ MOT DE PASSE*</p>
        <input class="cadre" type="password" placeholder="MOT DE PASSE*">
      </div>
 
      <div class="cadre">
        <p class="choose-adresse">ADRESSE</p>
        <input class="cadre" type="adresse" placeholder="89 rue de paris 9320">
        <p class="choose-region">REGION*</p>
        <input class="cadre" type="region" placeholder="OBLIGATOIRE*">
        <p class="choose-telephone">TELEPHONE</p>
        <input class="cadre" type="telephone" placeholder="TELEPHONE">
        <p class="choose-parrainage">PARRAINAGE(FALCUTATIF)</p>
        <input class="cadre" type="parrainage" placeholder="FALCUTATIF">
      </div>
    </div>
    <div class="button">
      <button>S'INSCRIRE</button>
      <a href="connexion.html" class="inscription"></a>
    </div>
 
  </form>
  </main>
  <script src="connexion.js"></script>
 
</body>
 
</html>

et il me manque le js car je narrive pas la completer.