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<html lang="NL" dir="ltr">
<head>
<meta charset="utf-8">
<title>mijn functies</title>
<!-- dit script werkt met functies
Auteur: Jarret Hoving -->
<!-- Opgave 59 -->
<script src="mijnfunctions.js"></script>
<script>
function verdubbel(inputgetal) {
outputgetal = inputgetal * 2;
return(outputgetal);
}
</script>
</head>
<body>
<script>
// mijngetal = prompt('Typ een getal in');
// resultaat = verdubbel(mijngetal);
// document.write('<br>Input-getal:' + mijngetal);
// document.write('<br>Output-getal:' + resultaat);
//
// afmelden();
// document.write("<br>");
// begroeten();
document.write("<br>De dollarkoers is " + dollarKoers());
document.write("<br>De eurokoers is " + euroKoers());
document.write("<br>100 dollar is " + dollarNaarEuro(100) + " euro's");
document.write("<br>wissel 100 euro's in dollars: " + wissel(100,'euro'));
document.write("<br>Wissel 20 dollars in euros");
</script>
</body>
</html>
//opgave 61
function afmelden(){
var antwoord = confirm('Wilt u zich afmelden?');
if(antwoord == true) {
alert('U wordt afgemeld!!');
}
}
//opgave 62
function begroeten(){
var systeemdatum = new Date();
var hour = systeemdatum.getHours();
if (hour >= 0 && hour <= 11) {
document.write("Goedemorgen!");
} if (hour >= 12 && hour <=17){
document.write("Goedemiddag!");
} else {
document.write("Goedenavond");
}
}
//opgave 63
function dollarKoers(){
return(1.36);
}
function euroKoers(){
return(0.74);
}
//opgave 64
function dollarNaarEuro(dollars){
return(dollars * euroKoers());
}
//opgave 65
function wissel(bedrag, valuta) {
if(valuta == 'euro') {
return(bedrag * dollarsKoers());
}
else if(valuta == 'dollar') {
return(bedrag * euroKoers());
}
}
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