XML DOM textContent 属性

定义和用法

textContent 属性设置或返回属性的文本内容。

语法

attrObject.textContent

实例

例子 1

下面的代码将 "books.xml" 加载到 xmlDoc 中,并返回 category 属性的文本内容:

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 x, i, xmlDoc, txt;
    xmlDoc = xml.responseXML;
    txt = "";
    x = xmlDoc.getElementsByTagName('book');
    for (i = 0; i < x.length; i++) {
        txt += x.item(i).attributes[0].textContent + "<br>";
    }
    document.getElementById("demo").innerHTML = txt;
}

亲自试一试

例子 2

设置属性的文本内容:

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 x, i, xmlDoc, txt;
    xmlDoc = xml.responseXML;
    txt = "";
    x = xmlDoc.getElementsByTagName('book');
    for (i = 0; i < x.length; i++) { 
        x.item(i).attributes[0].textContent = "TOO_OLD";
    }
    for (i = 0; i < x.length; i++) { 
        txt += x.item(i).attributes[0].textContent + "<br>";
    }
    document.getElementById("demo").innerHTML = txt; 
}

亲自试一试