$(element).is(":visible"); // 判断元素是否隐藏 // The same works with hidden $(element).is(":hidden"); 以下实例演示了两个 div,一个显示,一个隐藏,通过 jQuery 判断 div 元素是否隐藏: 实例 Div1 元素是隐藏的 Div2 元素是可见的 if($("#div1").is(":visible")) { document.wri...
// 查看 CSS 设置 display:[none|block], 忽略 visibility:[true|false]$(element).is(":visible"); 实例 我是隐藏的内容,你看不到我。我是显示的内容,你看的到我。
This basic check will returntrueif the entire element is visible to the user (within the visual viewport). If you'd like to check for ANY PART of the element, you can use the following: The plugin ignores the elements visibility by default. E.g.,display:none,visibility: hidden,offsetWidth...
也就是第一个值的下标 0 == 'abc' // 返回bool(true)，也就相当于相等 这两个表达式都返回true...
For jQuery.isInView, an element is considered to be "in view" when it is completely visible: its content box, padding, and border, every tiny bit of it. But we can change that. Perhaps we decide that images should load as soon as they begin to move into the tolerance zone, even if...
core_trim = core_version.trim, // Define a local copy of jQuery jQuery = function( selector, context ) { // The jQuery object is actually just the init constructor 'enhanced' return new jQuery.fn.init( selector, context, rootjQuery ); }, // Used for matching numbers core_pnum = /...
写出一个函数isVisible实现 代码语言:javascript 代码运行次数:0 运行 AI代码解释 function isVisible($img){ //获取浏览器窗口高度 var windowHeight = $(window).height(), //获取窗口滚动的高度 windowScrolltop = $(window).scrollTop(), //获取图片到页面顶部的高度 imgOffsettop = $img.offset().top,...
Elements that are not in a document are considered hidden; jQuery does not have a way to know if they will be visible when appended to a document since it depends on the applicable styles. This selector is the opposite of the :hidden selector. So, every element selected by :visible isn...
1.CSS选择器 标签选择器 td id选择器 #id 唯一 类选择器 div.note 群组选择器 td,p,div.a 后代选择器 #links a 通配选择符 * 2.jQuey选择器的优势 1.简洁的写法$("#ID")//这段jquery代码与下面的DOM语法等价 document.getElementById("ID") $("tagName")//这段jquery代码 jquery设置不可见 jquery...
If this method is called, the default action of the event will not be triggered.Events > Event Object event.relatedTarget The other DOM element involved in the event, if any.Events > Event Object event.result The last value returned by an event handler that was triggered by this event, ...