Exercice: écrire un programme Javascript qui permet d’afficher 10 premiers nombres pair
Solution:
var nombre = 2;
var tab= Array();
var i=0;
while(tab.length<10){
if(nombre % 2 == 0){
tab[i] = nombre;
i++;
}
nombre++;
}
for(i=0; i<tab.length; i++)
{
alert("les nombres paires sont:"+tab);
}
Resultat:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>ui button </title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div class="block-btn">
<button class="lire-plus">Lire plus</button>
<button class="envoyer">Envoyer</button>
<button class="connexion">Connexion</button>
<button class="inscription">Inscription</button>
</div>
<script src="main.js"></script>
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@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500&display=swap');
body{
height: 100vh;
margin: 0;
padding: 0;
display: grid;
place-items: center;
}
.block-btn{
display: grid;
grid-template-columns: repeat(4, 1fr);
}
.lire-plus{
background: #6200ee;
}
.envoyer{
background: #0fb294;
}
.connexion{
background: #0f056b;
}
.inscription{
background: #ee1851;
}
button{
margin: 1rem;
position: relative;
overflow: hidden;
transition: background 400ms;
color: #fff;
padding: 1rem 2rem;
font-size: 1.5rem;
outline: none;
border: none;
cursor: pointer;
box-shadow: 0 0 0.5rem rgba(0, 0, 0, 0.3);
}
span.ripple{
position: absolute;
border-radius: 50%;
transform: scale(0);
animation: ripple 600ms linear;
background-color: rgba(255, 255, 255, 0.7);
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to{
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opacity: 0;
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circle.style.top = `${event.clientY - button.offsetTop - radius}px`;
circle.classList.add("ripple");
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}
button.appendChild(circle);
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