Hallo!
Könnt ihr mir sagen, wie document.write genau funktioniert und warum es
solch gewaltige Unterschiede in der Interpretation bei Browsern gibt?
Ich habe heute vielleicht eine Dreiviertelstun de lang mit einem Programm
gekämpft. Es ist ein ganz simples JavaScript-Programm mit einem Formular,
welches einen Button enthält, über den eine Funktion aufgerufen wird. Die
gewünschte Ausgabe mit alert() funktioniert wunderbar, aber document.write( )
macht bei manchen Browsern Schwierigkeiten . Dort lief es auf Windows, auf
Mac versagte es aber seinen Dienst und gab eine unerklärliche Fehlermeldung
aus, das array "punkt" sei nicht bekannt.
Hoffe auf ein wenig Klarheit.
Gruß
Alexander
---------------
<html>
<head><title> Alexander Erlich A2</title>
<script language ="JavaScript " type="text/javascript">
var namen=new
Array("Anne","B erta","Claudia" ,"Dora","Erika" ,"Frieda","Gerd a","Hanna","Ina ","Jana");
var punkt=new Array(8,1,15,3, 12,8,3,7,5,9);
function ausgabe() {
var i;
var counter=0;
var eingabe = window.document .klausur.punkta ngabe.value;
eingabe = parseInt(eingab e);
alert (eingabe);
for (i=0; i<punkt.length ; i++) {
if (punkt[i] == eingabe) {
//alert(namen[i] + "<br>");
document.write (namen[i] + "<br>") // !
counter++;
}
}
document.write ("Es gibt " + counter + " Teilnehmer mit " + eingabe + "
Punkten.<br> ");
}
</script>
</head>
<body>
<h1> Klausurergebnis </h1>
<form name="klausur">
<br><br> Gib hier die Punktzahl an, für die du die Teilnehmer
suchst:
<input type="text" name="punktanga be" value=3>
<input type="button" name="aus" value="Ausgeben " onClick="ausgab e();">
</form>
</body>
</html> 1 3054
Alexander Erlich wrote: Könnt ihr mir sagen, wie document.write genau funktioniert und warum es solch gewaltige Unterschiede in der Interpretation bei Browsern gibt?
When you call document.write( ) when the initial output is generated, it
overwrites the output completely, including JavaScript declarations.
For what you want to do, it is best to use
document.getEle mentID(id).inne rHTML as follows:
In function ausgabe():
var html = '';
for (i = 0; i < punkt.length; i++) {
if (punkt[i] == eingabe) {
html += namen[i] + "<br>";
counter++;
}
}
html += "Es gibt " + counter + " Teilnehmer mit " + eingabe + "
Punkten.<br> ";
document.getEle mentByID('resul t').innerHTML = html;
And in the HTML:
<h1> Klausurergebnis </h1>
<div id="result"> </div>
<form name="klausur">
....
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