jquery插件范例代码
// 创建一个闭包 (function($) { // 插件的定义 $.fn.hilight = function(options) { debug(this); // build main options before element iteration var opts = $.extend({}, $.fn.hilight.defaults, options); // iterate and reformat each matched element return this.each(function() { $this = $(this); // build element specific options var o = $.meta ? $.extend({}, opts, $this.data()) : opts; // update element styles $this.css({ backgroundColor: o.background, color: o.foreground }); var markup = $this.html(); // call our format function markup = $.fn.hilight.format(markup); $this.html(markup); }); }; // 私有函数:debugging function debug($obj) { if (window.console && window.console.log) window.console.log('hilight selection count: ' + $obj.size()); }; // 定义暴露format函数 $.fn.hilight.format = function(txt) { return '<strong>' + txt + '</strong>'; }; // 插件的defaults $.fn.hilight.defaults = { foreground: 'red', background: 'yellow' }; // 闭包结束 })(jQuery);