{"id":500,"date":"2025-12-05T14:50:33","date_gmt":"2025-12-05T06:50:33","guid":{"rendered":"https:\/\/www.52runoob.com\/?p=500"},"modified":"2025-12-05T14:50:33","modified_gmt":"2025-12-05T06:50:33","slug":"%e4%bd%bf%e7%94%a8jquery%e6%a3%80%e6%9f%a5%e5%85%83%e7%b4%a0%e6%98%af%e5%90%a6%e9%9a%90%e8%97%8f%e7%9a%84%e5%a4%9a%e7%a7%8d%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.52runoob.com\/index.php\/2025\/12\/05\/%e4%bd%bf%e7%94%a8jquery%e6%a3%80%e6%9f%a5%e5%85%83%e7%b4%a0%e6%98%af%e5%90%a6%e9%9a%90%e8%97%8f%e7%9a%84%e5%a4%9a%e7%a7%8d%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u4f7f\u7528jQuery\u68c0\u67e5\u5143\u7d20\u662f\u5426\u9690\u85cf\u7684\u591a\u79cd\u65b9\u6cd5"},"content":{"rendered":"\n<p>\u5728 jQuery \u4e2d\uff0c\u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u9690\u85cf\u6709 <strong>\u591a\u79cd\u65b9\u6cd5<\/strong>\uff0c\u9002\u7528\u4e8e\u4e0d\u540c\u573a\u666f\uff08CSS <code>display:none<\/code>\u3001<code>visibility:hidden<\/code>\u3001<code>opacity:0<\/code> \u7b49\uff09\u3002\u4e0b\u9762\u6574\u7406\u4e00\u4efd <strong>\u5168\u9762\u6307\u5357<\/strong>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">1\ufe0f\u20e3 \u4f7f\u7528 <code>:hidden<\/code> \/ <code>:visible<\/code> \u9009\u62e9\u5668<\/h1>\n\n\n\n<h3 class=\"wp-block-heading\">\u793a\u4f8b<\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n&amp;lt;div id=&quot;box1&quot; style=&quot;display:none;&quot;&gt;\u9690\u85cf\u5143\u7d20&amp;lt;\/div&gt;\n&amp;lt;div id=&quot;box2&quot;&gt;\u663e\u793a\u5143\u7d20&amp;lt;\/div&gt;\n\n<\/pre><\/div>\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nif ($(&#039;#box1&#039;).is(&#039;:hidden&#039;)) {\n  console.log(&#039;box1 \u662f\u9690\u85cf\u7684&#039;)\n}\n\nif ($(&#039;#box2&#039;).is(&#039;:visible&#039;)) {\n  console.log(&#039;box2 \u662f\u53ef\u89c1\u7684&#039;)\n}\n\n<\/pre><\/div>\n\n\n<p>\u2705 \u7279\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>:hidden<\/code> \u4f1a\u68c0\u67e5\u5143\u7d20\u672c\u8eab\u53ca\u5176\u7236\u5143\u7d20\u662f\u5426\u9690\u85cf<\/li>\n\n\n\n<li><code>:visible<\/code> \u4e0e <code>:hidden<\/code> \u76f8\u53cd<\/li>\n\n\n\n<li>\u5305\u62ec <code>display:none<\/code>\u3001<code>width:0<\/code>\u3001<code>height:0<\/code>\u3001\u7236\u5143\u7d20\u9690\u85cf\u7b49\u60c5\u51b5<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">2\ufe0f\u20e3 \u4f7f\u7528 <code>.css('display')<\/code><\/h1>\n\n\n\n<p>\u68c0\u67e5\u5143\u7d20\u7684 <code>display<\/code> \u5c5e\u6027\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nif ($(&#039;#box1&#039;).css(&#039;display&#039;) === &#039;none&#039;) {\n  console.log(&#039;\u5143\u7d20 display:none&#039;)\n}\n\n<\/pre><\/div>\n\n\n<p>\u2705 \u6ce8\u610f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u53ea\u80fd\u5224\u65ad <strong>display \u5c5e\u6027<\/strong><\/li>\n\n\n\n<li>\u5bf9 <code>visibility:hidden<\/code> \u6216 <code>opacity:0<\/code> \u65e0\u6548<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">3\ufe0f\u20e3 \u4f7f\u7528 <code>.is(':hidden')<\/code> \u4e0e <code>.is(':visible')<\/code> \u7ed3\u5408\u7236\u5143\u7d20<\/h1>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nconst el = $(&#039;#box1&#039;)\nif (el.is(&#039;:hidden&#039;)) {\n  console.log(&#039;\u5143\u7d20\u9690\u85cf\uff08\u5305\u62ec\u7236\u5143\u7d20\u5f71\u54cd\uff09&#039;)\n}\n\n<\/pre><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><code>:hidden<\/code> \u4f1a\u81ea\u52a8\u8003\u8651 <strong>\u7236\u5143\u7d20\u662f\u5426\u9690\u85cf<\/strong><\/li>\n\n\n\n<li>\u63a8\u8350\u7528\u4e8e\u5927\u591a\u6570\u5224\u65ad\u573a\u666f<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">4\ufe0f\u20e3 \u4f7f\u7528 <code>.width()<\/code> \u6216 <code>.height()<\/code><\/h1>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nconst el = $(&#039;#box1&#039;)\nif (el.width() === 0 &amp;amp;&amp;amp; el.height() === 0) {\n  console.log(&#039;\u5143\u7d20\u9690\u85cf\u6216\u5c3a\u5bf8\u4e3a0&#039;)\n}\n\n<\/pre><\/div>\n\n\n<p>\u2705 \u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f53\u5143\u7d20 <strong>\u4e0d\u53ef\u89c1\u4f46\u6ca1\u6709 display:none<\/strong> \u65f6\uff08\u5982 <code>opacity:0<\/code> \u6216 <code>visibility:hidden<\/code>\uff09\uff0c\u5bbd\u9ad8\u53ef\u80fd\u4e3a0<\/li>\n\n\n\n<li>\u53ef\u7ed3\u5408 CSS \u5224\u65ad\u4f7f\u7528<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">5\ufe0f\u20e3 \u4f7f\u7528 <code>.prop('offsetParent')<\/code><\/h1>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nconst el = $(&#039;#box1&#039;)\nif (!el.prop(&#039;offsetParent&#039;)) {\n  console.log(&#039;\u5143\u7d20\u9690\u85cf\uff08display:none \u6216\u7236\u5143\u7d20\u9690\u85cf\uff09&#039;)\n}\n\n<\/pre><\/div>\n\n\n<p>\u2705 \u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>offsetParent<\/code> \u4e3a null \u8868\u793a\u5143\u7d20\u5728\u5e03\u5c40\u4e2d\u4e0d\u53ef\u89c1<\/li>\n\n\n\n<li>\u5bf9 <code>visibility:hidden<\/code> \u65e0\u6548<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">6\ufe0f\u20e3 \u4f7f\u7528 <code>.is(':hidden')<\/code> \u5224\u65ad\u590d\u5408\u6761\u4ef6<\/h1>\n\n\n\n<p>\u5982\u679c\u4f60\u5e0c\u671b\u5224\u65ad\u5143\u7d20\u662f\u5426\u5b8c\u5168\u4e0d\u53ef\u89c1\uff08\u5305\u62ec display\u3001visibility\u3001opacity\uff09\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nfunction isCompletelyHidden($el) {\n  return $el.is(&#039;:hidden&#039;) || $el.css(&#039;visibility&#039;) === &#039;hidden&#039; || $el.css(&#039;opacity&#039;) === &#039;0&#039;;\n}\n\nif (isCompletelyHidden($(&#039;#box1&#039;))) {\n  console.log(&#039;\u5143\u7d20\u5b8c\u5168\u4e0d\u53ef\u89c1&#039;)\n}\n\n<\/pre><\/div>\n\n\n<p>\u2705 \u7279\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u66f4\u4e25\u683c\u5224\u65ad<\/li>\n\n\n\n<li>\u5305\u542b\u4e09\u79cd\u5e38\u89c1\u9690\u85cf\u65b9\u5f0f<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">7\ufe0f\u20e3 \u603b\u7ed3\u5404\u79cd\u65b9\u6cd5\u9002\u7528\u573a\u666f<\/h1>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u65b9\u6cd5<\/th><th>\u53ef\u89c1\u6027\u7c7b\u578b<\/th><th>\u662f\u5426\u8003\u8651\u7236\u5143\u7d20<\/th><th>\u4f18\u70b9<\/th><\/tr><\/thead><tbody><tr><td><code>:hidden<\/code> \/ <code>:visible<\/code><\/td><td>display:none\u3001width\/height=0<\/td><td>\u662f<\/td><td>\u63a8\u8350\u7528\u4e8e\u5927\u591a\u6570\u573a\u666f<\/td><\/tr><tr><td><code>.css('display')<\/code><\/td><td>display:none<\/td><td>\u5426<\/td><td>\u7b80\u5355\u76f4\u63a5\uff0c\u7cbe\u786e\u5224\u65ad display<\/td><\/tr><tr><td><code>.width()\/height()<\/code><\/td><td>\u5c3a\u5bf8\u4e3a0<\/td><td>\u5426<\/td><td>\u5224\u65ad\u5143\u7d20\u5927\u5c0f<\/td><\/tr><tr><td><code>.prop('offsetParent')<\/code><\/td><td>display:none\/\u7236\u9690\u85cf<\/td><td>\u662f<\/td><td>\u5224\u65ad\u5143\u7d20\u662f\u5426\u5728\u5e03\u5c40\u4e2d\u663e\u793a<\/td><\/tr><tr><td>\u81ea\u5b9a\u4e49\u51fd\u6570\uff08visibility\/opacity\uff09<\/td><td>display:none + visibility:hidden + opacity:0<\/td><td>\u5426<\/td><td>\u5224\u65ad\u5143\u7d20\u5b8c\u5168\u4e0d\u53ef\u89c1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">8\ufe0f\u20e3 \u5c0f\u6280\u5de7<\/h1>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5224\u65ad\u5143\u7d20\u663e\u793a\u518d\u6267\u884c\u52a8\u753b<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nif ($(&#039;#box1&#039;).is(&#039;:visible&#039;)) {\n  $(&#039;#box1&#039;).fadeOut()\n}\n\n<\/pre><\/div>\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u5224\u65ad\u7236\u5143\u7d20\u9690\u85cf<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nif ($(&#039;#box1&#039;).parents(&#039;:hidden&#039;).length &gt; 0) {\n  console.log(&#039;\u7236\u5143\u7d20\u9690\u85cf\uff0c\u5b50\u5143\u7d20\u4e0d\u53ef\u89c1&#039;)\n}\n\n<\/pre><\/div>\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u7efc\u5408\u5224\u65ad<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nfunction isHidden($el) {\n  return $el.is(&#039;:hidden&#039;) || $el.css(&#039;visibility&#039;) === &#039;hidden&#039; || $el.css(&#039;opacity&#039;) === &#039;0&#039;;\n}\n\n<\/pre><\/div>","protected":false},"excerpt":{"rendered":"<p>\u5728 jQuery \u4e2d\uff0c\u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u9690\u85cf\u6709 \u591a\u79cd\u65b9\u6cd5\uff0c\u9002\u7528\u4e8e\u4e0d\u540c\u573a\u666f\uff08CSS &#8230; <a class=\"more-link\" href=\"https:\/\/www.52runoob.com\/index.php\/2025\/12\/05\/%e4%bd%bf%e7%94%a8jquery%e6%a3%80%e6%9f%a5%e5%85%83%e7%b4%a0%e6%98%af%e5%90%a6%e9%9a%90%e8%97%8f%e7%9a%84%e5%a4%9a%e7%a7%8d%e6%96%b9%e6%b3%95\/\">Continue Reading &rarr;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[],"class_list":["post-500","post","type-post","status-publish","format-standard","hentry","category-javascript"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/500","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/comments?post=500"}],"version-history":[{"count":1,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/500\/revisions"}],"predecessor-version":[{"id":501,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/500\/revisions\/501"}],"wp:attachment":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/media?parent=500"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/categories?post=500"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/tags?post=500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}