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How does jquery obtain the number of identical sub-elements under an element?
For example, the following html code obtains the number of elements a under P:
<p id="father"><a></a><a></a><a></a><a></a><a></a>……<a></a></p>We can write as follows:
$("#father a").length
$ ("# Father li"). length
How does jquery click an element to obtain the subscript of the first few identical elements in the parent element?
Should the type be a button? It is very convenient to use index, as shown below:
<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "www.w3.org/..al.dtd">
<Html xmlns = "www.w3.org/5o/xhtml">
<Head>
<Meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8"/>
<Title> untitled document </title>
</Head>
<Script src = "js/jquery-1.4.4.js" language = "javascript" type = "text/javascript"> </script>
<Script language = "javascript" type = "text/javascript">
$ (Document). ready (function (){
$ ("Div: button"). click (function (){
Alert ($ (this). index () + 1 );
});
});
</Script>
</Script>
<Body>
<Div>
<Input type = "button" value = "Description">
<Input type = "button" value = "View">
<Input type = "button" value = "Submit">
</Div>
<Div>
<Input type = "button" value = "Description">
<Input type = "button" value = "View">
<Input type = "button" value = "Submit">
</Div>
<Div>
<Input type = "button" value = "Description">
<I ...... remaining full text>
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