如何从我的HTML对象和jQuery中的src图像中获取类名？ [英] How do I get class name from my HTML object and src of image in jQuery?

问题描述

我想从JavaScript（jQuery）中获取HTML对象的类名，并将其写入变量。我试图在jQuery的文档中找到它，但我并没有成功。接下来，我想获得图像的来源（图像的路径）或段落的文本（p）。



如何从我的名字中获取类名HTML对象？如何从段落中获取图像源或文本？



请帮帮我。



这里，我插入元素：如果Textbox为空我插入图像，否则我插入段落。

Hi,
I want to get a class name from my HTML object in JavaScript (jQuery) and write it into a variable. I was trying to find it in the documentation for jQuery, but I wasn''t successful. Next, I want to get source of an image (path to the image) or a text of a paragraph (p).

How can I get class name from my HTML object? And how can I get image source or text from paragraph?

Please, help me.

Here, I am inserting the elements: if Textbox is empty I insert image, else I insert paragraph.

if ($("#Textbox1").val().toString() == "") {
            //if user has not written any text, inserts image to screen.
                $("#platno").append("<div class=\"draggable\" id=\"" + ImgID + "\" style=\"max-height:100px; max-width:100px;\"><img class=\"img\"  src=\"" + path.toString() + "\"></div>");
            }
            else {
            //else inserts Text
                $("#platno").append("<div class=\"draggable\" id=\"" + ImgID + "\" style=\"max-height:100px; max-width:100px;\"><p class=\"text\">" + $("#Textbox1").val() + "</p></div>");
            }

我试图获得一个类和一个图像源，但这不起作用：

I tried to get a class and a source of an image, but this doen''t work:

elem[2] = $(selector.toString()).children().first().css("class"); //third attribute is class (text or image)
if ($(selector.toString()).children().first().css("class") == "img") {
    elem[3] = $(selector.toString()).children().first().css("src");  //fourth is image source
}
else {
    elem[3] = $(selector.toString()).children().first().text;   //or fourth is text of an element
}

感谢您的回复！



Pepin z Hane

Thanks for replies!

Pepin z Hane

推荐答案

（ ＃Textbox1）。val（）。toString（）== < span class =code-string> ）{
// 如果用户没有写任何文本，则将图像插入屏幕。

("#Textbox1").val().toString() == "") { //if user has not written any text, inserts image to screen.

（ ＃platno）。append（ < div class = \draggable\id = \ + ImgID + \style = \max-height：100px; max-width：100px; \>< img class = \img \src = \ +路径的ToString（ ）+ \>< / div>）;
}
其他 {
// else插入文本

("#platno").append("<div class=\"draggable\" id=\"" + ImgID + "\" style=\"max-height:100px; max-width:100px;\"><img class=\"img\" src=\"" + path.toString() + "\"></div>"); } else { //else inserts Text

（ ＃ platno）。append（ < div class = \draggable\id = \\ \\ + ImgID + \style = \max-height：100px; max -width：100px; \>< p class = \text \> +

("#platno").append("<div class=\"draggable\" id=\"" + ImgID + "\" style=\"max-height:100px; max-width:100px;\"><p class=\"text\">" +

这篇关于如何从我的HTML对象和jQuery中的src图像中获取类名？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！