XML DOM substringData() Methode
❮ Textobjekt
Beispiel
Das folgende Codefragment lädt „ books.xml “ in xmlDoc und ruft ein Fragment aus dem Textknoten des ersten <title>-Elements ab:
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
myFunction(this);
}
};
xhttp.open("GET", "books.xml", true);
xhttp.send();
function myFunction(xml) {
var xmlDoc = xml.responseXML;
var x =
xmlDoc.getElementsByTagName("title")[0].childNodes[0];
var y = x.substringData(9, 7);
document.getElementById("demo").innerHTML
=
x.nodeValue + "<br>" + y;
}
Ausgabe:
Everyday Italian
Italian
Definition und Verwendung
Die Methode substringData() ruft Daten vom Textknoten ab.
Syntax
substringData(start,length)
Parameter | Description |
---|---|
start | Required. Specifies where to begin extracting characters. Start value starts at zero |
length | Required. Specifies how many characters to extract |
❮ Textobjekt