如何使 js 与特定的 html 块一起工作？

Question

I have the following js code

$(function () {
 "use strict";

var maxText = $("textarea").attr("maxlength"),
    
    ourMessage = $(".message");

ourMessage.html('<span>' + maxText + '</span> Characters Remaining');

$("textarea").keydown(function () {
   
    var textLength = $(this).val().length,
        
        remText = maxText - textLength;
    
    ourMessage.html('<span>' + remText + '</span> Characters Remaining');
    
});


 $("textarea").keyup(function () {
   
    var textLength = $(this).val().length,
        
        remText = maxText - textLength;
    
    ourMessage.html('<span>' + remText + '</span> Characters Remaining');
    
}); });

and the following html code snippet:

    <div class="form-group">
        <textarea id="field" placeholder="Type Here" maxlength="3000" rows="10" cols="40"></textarea>
        <div class="message"></div>
    </div>

and it works fine. But I need more than one of html snippets on the same page and I don't know how to change the code so <div class="message"></div> only changes when "it's" textarea is used.

Answer 1

Assuming the div is always directly after the textarea, you can simply call the next method on the textarea to get the div.