如何在同一页面中的多个jQuery插件之间隔离功能 [英] How to isolate functionalities between multiple jQuery Plugins in Same Page

问题描述

如果我在同一页面上拥有多个相同插件的实例，那么我该如何分隔功能.例如.在此演示 http://jsfiddle.net/3jwAK/中，我有一个插件"editor"附加一个模拟某些插件/小部件按钮的链接，单击该链接将在textarea上附加一行.

If I have more than 1 instance of the same plugin on the same page how can I separate functionality. eg. in this demo http://jsfiddle.net/3jwAK/, I have a plugin "editor" that appends a link simulating some plugin/widget button, that when clicked will append a line to the textarea.

当前的问题是它仅针对最后一个textarea

The problem with it currently is it only targets the last textarea

代码看起来像

JS

(function($) {
    $.fn.editor = function(options) {
        var helpers = {
            rand: function() {
                return Math.round(Math.random() * 20);
            }   
        };

        return this.each(function() {
            $this = $(this);

            var div = $("<a>", {
                text: "Add Random Number",
                href: "#",
                click: function() {
                    $this.val( $this.val() + "\n" + helpers.rand() );
                }
            });

            $this.before(div);
        });

    }
})(jQuery);

HTML

<textarea name="txtArea1" cols="50" rows="6" id="editor1"></textarea>

推荐答案

问题是变量$this在该函数的每次运行中都必须是本地副本.在其前面放置var.

The problem is the variable $this needs to be a local copy in each run of that function. Put var in front of it.

var $this = $(this);

已更新: http://jsfiddle.net/3jwAK/1/

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