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                <!DOCTYPE html>
        <title>Cours JavaScript</title>
        <meta charset="utf-8">
        <link rel="stylesheet" href="cours.css">
        <script src='cours.js' async></script>
        <h1>Titre principal</h1>
        <p id='p0'></p>
        <p id='p1'></p>
        <p id='p2'></p>
        <p id='p3'></p>




                let chaine = 'Bonjour, je suis Pierre\n et mon no. est le [06-36-65-65-65]';

let masque1 = /pierre/; //Cherche "pierre" exactement
let masque2 = /pierre/i; //Cherche "pierre", "PIERRE", "PiErRe"...
let masque3 = /e$/; //Cherche "e" en fin de chaine
let masque4 = /e$/gm; //Cherche "e" en fin de chaque ligne
let masque5 = /./gs; //Cherche tout caractère et effectue une recherche globale

let p0 = document.getElementById('p0');
let p1 = document.getElementById('p1');

p0.textContent = chaine;
p1.innerHTML =
    'Résultat masque 1 : ' +  chaine.match(masque1) +
    '<br>Résultat masque 2 : ' + chaine.match(masque2) +
    '<br>Résultat masque 3 : ' + chaine.match(masque3) +
    '<br>Résultat masque 4 : ' + chaine.match(masque4) +
    '<br>Résultat masque 5 : ' + chaine.match(masque5);