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rxlabz/calculette.html

Created August 4, 2016 09:05
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calculette.html
<!doctype html>
<html lang="fr">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<script type="text/javascript">
// recuperer une operation
var operation = prompt('operation : + - * / ?');
// recuperer une 1ere valeur
var valeur1 = parseInt(prompt('valeur1? '));
// recuperer une 2eme valeur
var valeur2 = parseInt(prompt('valeur2? '));
// calculer le resultat de l'operation
// si valeurs numeriques invalides
if( isNaN( valeur1 ) || isNaN( valeur2 ) ){
alert('valeurs invalides');
} else { // sinon
var resultat ;
/*
if( operation == '+')
resultat = valeur1 + valeur2;
else if( operation == '-')
resultat = valeur1 - valeur2;
else if( operation == '*')
resultat = valeur1 * valeur2;
else if( operation == '/')
resultat = valeur1 / valeur2;
else
alert('operation invalide');
*/
switch(operation){
case '+':
resultat = valeur1 + valeur2;
break;
case '-':
resultat = valeur1 - valeur2;
break;
case '*':
resultat = valeur1 * valeur2;
break;
case '/':
resultat = valeur1 / valeur2;
break;
default:
alert('operation invalide');
}
/*
if( resultat )// si resultat existe est a une valeur
alert('resultat :' + resultat);
*/
alert( resultat ? 'resultat :' + resultat : 'Calcul invalide' );
}
</script>
</head>
<body>
</body>
</html>
@thefakewater
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thefakewater commented Dec 20, 2018 •
edited

Yeah

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