एनएवी

बूटस्ट्रैप के शामिल नेविगेशन घटकों का उपयोग करने के तरीके के लिए दस्तावेज़ीकरण और उदाहरण।

आधार नौसेना

.navबूटस्ट्रैप में उपलब्ध नेविगेशन बेस क्लास से सक्रिय और अक्षम राज्यों में सामान्य मार्कअप और शैलियों को साझा करता है। प्रत्येक शैली के बीच स्विच करने के लिए संशोधक वर्ग स्वैप करें।

आधार .navघटक फ्लेक्सबॉक्स के साथ बनाया गया है और सभी प्रकार के नेविगेशन घटकों के निर्माण के लिए एक मजबूत आधार प्रदान करता है। इसमें कुछ स्टाइल ओवरराइड (सूचियों के साथ काम करने के लिए), बड़े हिट क्षेत्रों के लिए कुछ लिंक पैडिंग, और बुनियादी अक्षम स्टाइल शामिल हैं।

आधार घटक में कोई राज्य .navशामिल नहीं है। .activeनिम्नलिखित उदाहरणों में वर्ग शामिल है, मुख्य रूप से यह प्रदर्शित करने के लिए कि यह विशेष वर्ग किसी विशेष स्टाइल को ट्रिगर नहीं करता है।

<ul class="nav">
  <li class="nav-item">
    <a class="nav-link active" href="#">Active</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link disabled">Disabled</a>
  </li>
</ul>

कक्षाओं का उपयोग पूरे समय किया जाता है, इसलिए आपका मार्कअप अत्यधिक लचीला हो सकता है। <ul>ऊपर की तरह s का उपयोग करें , यदि आपके आइटम का क्रम महत्वपूर्ण है, या किसी तत्व <ol>के साथ अपना स्वयं का रोल करें । <nav>क्योंकि .navउपयोग display: flex, एनएवी लिंक एनएवी आइटम के समान व्यवहार करते हैं, लेकिन अतिरिक्त मार्कअप के बिना।

<nav class="nav">
  <a class="nav-link active" href="#">Active</a>
  <a class="nav-link" href="#">Link</a>
  <a class="nav-link" href="#">Link</a>
  <a class="nav-link disabled">Disabled</a>
</nav>

उपलब्ध शैलियाँ

.navसंशोधक और उपयोगिताओं के साथ s घटक की शैली बदलें । आवश्यकतानुसार मिक्स एंड मैच करें, या अपना खुद का निर्माण करें।

क्षैतिज संरेखण

फ्लेक्सबॉक्स उपयोगिताओं के साथ अपनी नौसेना के क्षैतिज संरेखण को बदलें । डिफ़ॉल्ट रूप से, एनएवी बाएं-संरेखित होते हैं, लेकिन आप उन्हें आसानी से केंद्र या दाएं संरेखित में बदल सकते हैं।

के साथ केंद्रित .justify-content-center:

<ul class="nav justify-content-center">
  <li class="nav-item">
    <a class="nav-link active" href="#">Active</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link disabled">Disabled</a>
  </li>
</ul>

के साथ सही-संरेखित .justify-content-end:

<ul class="nav justify-content-end">
  <li class="nav-item">
    <a class="nav-link active" href="#">Active</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link disabled">Disabled</a>
  </li>
</ul>

खड़ा

.flex-columnउपयोगिता के साथ फ्लेक्स आइटम दिशा बदलकर अपने नेविगेशन को ढेर करें । उन्हें कुछ व्यूपोर्ट पर स्टैक करने की आवश्यकता है लेकिन दूसरों को नहीं? प्रतिक्रियाशील संस्करणों का उपयोग करें (उदा., .flex-sm-column).

<ul class="nav flex-column">
  <li class="nav-item">
    <a class="nav-link active" href="#">Active</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link disabled">Disabled</a>
  </li>
</ul>

<ul>हमेशा की तरह, बिना s के भी लंबवत नेविगेशन संभव है।

<nav class="nav flex-column">
  <a class="nav-link active" href="#">Active</a>
  <a class="nav-link" href="#">Link</a>
  <a class="nav-link" href="#">Link</a>
  <a class="nav-link disabled">Disabled</a>
</nav>

टैब

ऊपर से मूल नौसेना लेता है और .nav-tabsएक टैब्ड इंटरफ़ेस उत्पन्न करने के लिए कक्षा जोड़ता है। हमारे टैब जावास्क्रिप्ट प्लगइन के साथ टैब करने योग्य क्षेत्र बनाने के लिए उनका उपयोग करें ।

<ul class="nav nav-tabs">
  <li class="nav-item">
    <a class="nav-link active" href="#">Active</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link disabled">Disabled</a>
  </li>
</ul>

गोलियाँ

वही HTML लें, लेकिन .nav-pillsइसके बजाय उपयोग करें:

<ul class="nav nav-pills">
  <li class="nav-item">
    <a class="nav-link active" href="#">Active</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link disabled">Disabled</a>
  </li>
</ul>

भरें और औचित्य दें

.navअपनी सामग्री को दो संशोधक वर्गों में से एक पूर्ण उपलब्ध चौड़ाई का विस्तार करने के लिए बाध्य करें । अपने .nav-items के साथ सभी उपलब्ध स्थान को आनुपातिक रूप से भरने के लिए, का उपयोग करें .nav-fill। ध्यान दें कि सभी क्षैतिज स्थान पर कब्जा है, लेकिन प्रत्येक एनएवी आइटम की चौड़ाई समान नहीं है।

<ul class="nav nav-pills nav-fill">
  <li class="nav-item">
    <a class="nav-link active" href="#">Active</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Much longer nav link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link disabled">Disabled</a>
  </li>
</ul>

-आधारित नेविगेशन का उपयोग करते समय <nav>, आप सुरक्षित रूप से छोड़ सकते हैं .nav-itemक्योंकि केवल .nav-linkस्टाइलिंग <a>तत्वों के लिए आवश्यक है।

<nav class="nav nav-pills nav-fill">
  <a class="nav-link active" href="#">Active</a>
  <a class="nav-link" href="#">Much longer nav link</a>
  <a class="nav-link" href="#">Link</a>
  <a class="nav-link disabled">Disabled</a>
</nav>

समान-चौड़ाई वाले तत्वों के लिए, उपयोग करें .nav-justified। सभी क्षैतिज स्थान एनएवी लिंक द्वारा कब्जा कर लिए जाएंगे, लेकिन .nav-fillउपरोक्त के विपरीत, प्रत्येक एनएवी आइटम की चौड़ाई समान होगी।

<ul class="nav nav-pills nav-justified">
  <li class="nav-item">
    <a class="nav-link active" href="#">Active</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Much longer nav link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link disabled">Disabled</a>
  </li>
</ul>

एक आधारित नेविगेशन .nav-fillका उपयोग करने वाले उदाहरण के समान ।<nav>

<nav class="nav nav-pills nav-justified">
  <a class="nav-link active" href="#">Active</a>
  <a class="nav-link" href="#">Much longer nav link</a>
  <a class="nav-link" href="#">Link</a>
  <a class="nav-link disabled">Disabled</a>
</nav>

फ्लेक्स उपयोगिताओं के साथ कार्य करना

यदि आपको उत्तरदायी एनएवी विविधताओं की आवश्यकता है, तो फ्लेक्सबॉक्स उपयोगिताओं की एक श्रृंखला का उपयोग करने पर विचार करें । अधिक वर्बोज़ होने पर, ये उपयोगिताओं उत्तरदायी ब्रेकपॉइंट्स में अधिक अनुकूलन प्रदान करती हैं। नीचे दिए गए उदाहरण में, हमारी नौसेना सबसे कम ब्रेकपॉइंट पर खड़ी होगी, फिर एक क्षैतिज लेआउट के अनुकूल होगी जो छोटे ब्रेकपॉइंट से शुरू होने वाली उपलब्ध चौड़ाई को भरती है।

<nav class="nav nav-pills flex-column flex-sm-row">
  <a class="flex-sm-fill text-sm-center nav-link active" href="#">Active</a>
  <a class="flex-sm-fill text-sm-center nav-link" href="#">Longer nav link</a>
  <a class="flex-sm-fill text-sm-center nav-link" href="#">Link</a>
  <a class="flex-sm-fill text-sm-center nav-link disabled">Disabled</a>
</nav>

सुलभता के संबंध में

role="navigation"यदि आप नेविगेशन बार प्रदान करने के लिए एनएवी का उपयोग कर रहे हैं, तो के सबसे तार्किक पैरेंट कंटेनर में जोड़ना सुनिश्चित करें , या संपूर्ण नेविगेशन के चारों ओर एक तत्व <ul>लपेटें । <nav>भूमिका को स्वयं में न जोड़ें <ul>, क्योंकि इससे सहायक तकनीकों द्वारा इसे वास्तविक सूची के रूप में घोषित किए जाने से रोका जा सकेगा।

Note that navigation bars, even if visually styled as tabs with the .nav-tabs class, should not be given role="tablist", role="tab" or role="tabpanel" attributes. These are only appropriate for dynamic tabbed interfaces, as described in the ARIA Authoring Practices Guide tabs pattern. See JavaScript behavior for dynamic tabbed interfaces in this section for an example.

Using dropdowns

Add dropdown menus with a little extra HTML and the dropdowns JavaScript plugin.

Tabs with dropdowns

<ul class="nav nav-tabs">
  <li class="nav-item">
    <a class="nav-link active" href="#">Active</a>
  </li>
  <li class="nav-item dropdown">
    <a class="nav-link dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-expanded="false">Dropdown</a>
    <div class="dropdown-menu">
      <a class="dropdown-item" href="#">Action</a>
      <a class="dropdown-item" href="#">Another action</a>
      <a class="dropdown-item" href="#">Something else here</a>
      <div class="dropdown-divider"></div>
      <a class="dropdown-item" href="#">Separated link</a>
    </div>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link disabled">Disabled</a>
  </li>
</ul>

Pills with dropdowns

<ul class="nav nav-pills">
  <li class="nav-item">
    <a class="nav-link active" href="#">Active</a>
  </li>
  <li class="nav-item dropdown">
    <a class="nav-link dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-expanded="false">Dropdown</a>
    <div class="dropdown-menu">
      <a class="dropdown-item" href="#">Action</a>
      <a class="dropdown-item" href="#">Another action</a>
      <a class="dropdown-item" href="#">Something else here</a>
      <div class="dropdown-divider"></div>
      <a class="dropdown-item" href="#">Separated link</a>
    </div>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
  </li>
  <li class="nav-item">
    <a class="nav-link disabled">Disabled</a>
  </li>
</ul>

JavaScript behavior

Use the tab JavaScript plugin—include it individually or through the compiled bootstrap.js file—to extend our navigational tabs and pills to create tabbable panes of local content.

If you’re building our JavaScript from source, it requires util.js.

Dynamic tabbed interfaces, as described in the ARIA Authoring Practices Guide tabs pattern, require role="tablist", role="tab", role="tabpanel", and additional aria- attributes in order to convey their structure, functionality and current state to users of assistive technologies (such as screen readers). As a best practice, we recommend using <button> elements for the tabs, as these are controls that trigger a dynamic change, rather than links that navigate to a new page or location.

Note that the tab JavaScript plugin does not support tabbed interfaces that contain dropdown menus, as these cause both usability and accessibility issues. From a usability perspective, the fact that the currently displayed tab’s trigger element is not immediately visible (as it’s inside the closed dropdown menu) can cause confusion. From an accessibility point of view, there is currently no sensible way to map this sort of construct to a standard WAI ARIA pattern, meaning that it cannot be easily made understandable to users of assistive technologies.

Placeholder content for the tab panel. This one relates to the home tab. Takes you miles high, so high, 'cause she’s got that one international smile. There's a stranger in my bed, there's a pounding in my head. Oh, no. In another life I would make you stay. ‘Cause I, I’m capable of anything. Suiting up for my crowning battle. Used to steal your parents' liquor and climb to the roof. Tone, tan fit and ready, turn it up cause its gettin' heavy. Her love is like a drug. I guess that I forgot I had a choice.

टैब पैनल के लिए प्लेसहोल्डर सामग्री। यह प्रोफाइल टैब से संबंधित है। आपको बेहतरीन वास्तुकला मिली है। पासपोर्ट टिकट, वह महानगरीय है। ठीक है, ताजा, भयंकर, हमने इसे लॉक पर प्राप्त किया। कभी योजना नहीं बनाई कि एक दिन मैं तुम्हें खो दूंगा। वह तुम्हारा दिल खा जाती है। आपका चुंबन लौकिक है, हर चाल जादू है। मेरा मतलब है, मेरा मतलब है जैसे वह वही है। नमस्कार प्रियजनों चलो एक यात्रा करते हैं। बस 4 जुलाई की रात की तरह! लेकिन आप बल्कि बर्बाद हो जाएंगे।

Placeholder content for the tab panel. This one relates to the contact tab. Her love is like a drug. All my girls vintage Chanel baby. Got a motel and built a fort out of sheets. 'Cause she's the muse and the artist. (This is how we do) So you wanna play with magic. So just be sure before you give it all to me. I'm walking, I'm walking on air (tonight). Skip the talk, heard it all, time to walk the walk. Catch her if you can. Stinging like a bee I earned my stripes.

<ul class="nav nav-tabs" id="myTab" role="tablist">
  <li class="nav-item" role="presentation">
    <button class="nav-link active" id="home-tab" data-toggle="tab" data-target="#home" type="button" role="tab" aria-controls="home" aria-selected="true">Home</button>
  </li>
  <li class="nav-item" role="presentation">
    <button class="nav-link" id="profile-tab" data-toggle="tab" data-target="#profile" type="button" role="tab" aria-controls="profile" aria-selected="false">Profile</button>
  </li>
  <li class="nav-item" role="presentation">
    <button class="nav-link" id="contact-tab" data-toggle="tab" data-target="#contact" type="button" role="tab" aria-controls="contact" aria-selected="false">Contact</button>
  </li>
</ul>
<div class="tab-content" id="myTabContent">
  <div class="tab-pane fade show active" id="home" role="tabpanel" aria-labelledby="home-tab">...</div>
  <div class="tab-pane fade" id="profile" role="tabpanel" aria-labelledby="profile-tab">...</div>
  <div class="tab-pane fade" id="contact" role="tabpanel" aria-labelledby="contact-tab">...</div>
</div>

To help fit your needs, this works with <ul>-based markup, as shown above, or with any arbitrary “roll your own” markup. Note that if you’re using <nav>, you shouldn’t add role="tablist" directly to it, as this would override the element’s native role as a navigation landmark. Instead, switch to an alternative element (in the example below, a simple <div>) and wrap the <nav> around it.

Placeholder content for the tab panel. This one relates to the profile tab. You got the finest architecture. Passport stamps, she's cosmopolitan. Fine, fresh, fierce, we got it on lock. Never planned that one day I'd be losing you. She eats your heart out. Your kiss is cosmic, every move is magic. I mean the ones, I mean like she's the one. Greetings loved ones let's take a journey. Just own the night like the 4th of July! But you'd rather get wasted.

<nav>
  <div class="nav nav-tabs" id="nav-tab" role="tablist">
    <button class="nav-link active" id="nav-home-tab" data-toggle="tab" data-target="#nav-home" type="button" role="tab" aria-controls="nav-home" aria-selected="true">Home</button>
    <button class="nav-link" id="nav-profile-tab" data-toggle="tab" data-target="#nav-profile" type="button" role="tab" aria-controls="nav-profile" aria-selected="false">Profile</button>
    <button class="nav-link" id="nav-contact-tab" data-toggle="tab" data-target="#nav-contact" type="button" role="tab" aria-controls="nav-contact" aria-selected="false">Contact</button>
  </div>
</nav>
<div class="tab-content" id="nav-tabContent">
  <div class="tab-pane fade show active" id="nav-home" role="tabpanel" aria-labelledby="nav-home-tab">...</div>
  <div class="tab-pane fade" id="nav-profile" role="tabpanel" aria-labelledby="nav-profile-tab">...</div>
  <div class="tab-pane fade" id="nav-contact" role="tabpanel" aria-labelledby="nav-contact-tab">...</div>
</div>

The tabs plugin also works with pills.

<ul class="nav nav-pills mb-3" id="pills-tab" role="tablist">
  <li class="nav-item" role="presentation">
    <button class="nav-link active" id="pills-home-tab" data-toggle="pill" data-target="#pills-home" type="button" role="tab" aria-controls="pills-home" aria-selected="true">Home</button>
  </li>
  <li class="nav-item" role="presentation">
    <button class="nav-link" id="pills-profile-tab" data-toggle="pill" data-target="#pills-profile" type="button" role="tab" aria-controls="pills-profile" aria-selected="false">Profile</button>
  </li>
  <li class="nav-item" role="presentation">
    <button class="nav-link" id="pills-contact-tab" data-toggle="pill" data-target="#pills-contact" type="button" role="tab" aria-controls="pills-contact" aria-selected="false">Contact</button>
  </li>
</ul>
<div class="tab-content" id="pills-tabContent">
  <div class="tab-pane fade show active" id="pills-home" role="tabpanel" aria-labelledby="pills-home-tab">...</div>
  <div class="tab-pane fade" id="pills-profile" role="tabpanel" aria-labelledby="pills-profile-tab">...</div>
  <div class="tab-pane fade" id="pills-contact" role="tabpanel" aria-labelledby="pills-contact-tab">...</div>
</div>

And with vertical pills.

Placeholder content for the tab panel. This one relates to the home tab. Saw you downtown singing the Blues. Watch you circle the drain. Why don't you let me stop by? Heavy is the head that wears the crown. Yes, we make angels cry, raining down on earth from up above. Wanna see the show in 3D, a movie. Do you ever feel, feel so paper thin. It’s a yes or no, no maybe.

Placeholder content for the tab panel. This one relates to the profile tab. Takes you miles high, so high, 'cause she’s got that one international smile. There's a stranger in my bed, there's a pounding in my head. Oh, no. In another life I would make you stay. ‘Cause I, I’m capable of anything. Suiting up for my crowning battle. Used to steal your parents' liquor and climb to the roof. Tone, tan fit and ready, turn it up cause its gettin' heavy. Her love is like a drug. I guess that I forgot I had a choice.

Placeholder content for the tab panel. This one relates to the messages tab. You got the finest architecture. Passport stamps, she's cosmopolitan. Fine, fresh, fierce, we got it on lock. Never planned that one day I'd be losing you. She eats your heart out. Your kiss is cosmic, every move is magic. I mean the ones, I mean like she's the one. Greetings loved ones let's take a journey. Just own the night like the 4th of July! But you'd rather get wasted.

Placeholder content for the tab panel. This one relates to the settings tab. Her love is like a drug. All my girls vintage Chanel baby. Got a motel and built a fort out of sheets. 'Cause she's the muse and the artist. (This is how we do) So you wanna play with magic. So just be sure before you give it all to me. I'm walking, I'm walking on air (tonight). Skip the talk, heard it all, time to walk the walk. Catch her if you can. Stinging like a bee I earned my stripes.

<div class="row">
  <div class="col-3">
    <div class="nav flex-column nav-pills" id="v-pills-tab" role="tablist" aria-orientation="vertical">
      <button class="nav-link active" id="v-pills-home-tab" data-toggle="pill" data-target="#v-pills-home" type="button" role="tab" aria-controls="v-pills-home" aria-selected="true">Home</button>
      <button class="nav-link" id="v-pills-profile-tab" data-toggle="pill" data-target="#v-pills-profile" type="button" role="tab" aria-controls="v-pills-profile" aria-selected="false">Profile</button>
      <button class="nav-link" id="v-pills-messages-tab" data-toggle="pill" data-target="#v-pills-messages" type="button" role="tab" aria-controls="v-pills-messages" aria-selected="false">Messages</button>
      <button class="nav-link" id="v-pills-settings-tab" data-toggle="pill" data-target="#v-pills-settings" type="button" role="tab" aria-controls="v-pills-settings" aria-selected="false">Settings</button>
    </div>
  </div>
  <div class="col-9">
    <div class="tab-content" id="v-pills-tabContent">
      <div class="tab-pane fade show active" id="v-pills-home" role="tabpanel" aria-labelledby="v-pills-home-tab">...</div>
      <div class="tab-pane fade" id="v-pills-profile" role="tabpanel" aria-labelledby="v-pills-profile-tab">...</div>
      <div class="tab-pane fade" id="v-pills-messages" role="tabpanel" aria-labelledby="v-pills-messages-tab">...</div>
      <div class="tab-pane fade" id="v-pills-settings" role="tabpanel" aria-labelledby="v-pills-settings-tab">...</div>
    </div>
  </div>
</div>

Using data attributes

You can activate a tab or pill navigation without writing any JavaScript by simply specifying data-toggle="tab" or data-toggle="pill" on an element. Use these data attributes on .nav-tabs or .nav-pills.

<!-- Nav tabs -->
<ul class="nav nav-tabs" id="myTab" role="tablist">
  <li class="nav-item" role="presentation">
    <button class="nav-link active" id="home-tab" data-toggle="tab" data-target="#home" type="button" role="tab" aria-controls="home" aria-selected="true">Home</button>
  </li>
  <li class="nav-item" role="presentation">
    <button class="nav-link" id="profile-tab" data-toggle="tab" data-target="#profile" type="button" role="tab" aria-controls="profile" aria-selected="false">Profile</button>
  </li>
  <li class="nav-item" role="presentation">
    <button class="nav-link" id="messages-tab" data-toggle="tab" data-target="#messages" type="button" role="tab" aria-controls="messages" aria-selected="false">Messages</button>
  </li>
  <li class="nav-item" role="presentation">
    <button class="nav-link" id="settings-tab" data-toggle="tab" data-target="#settings" type="button" role="tab" aria-controls="settings" aria-selected="false">Settings</button>
  </li>
</ul>

<!-- Tab panes -->
<div class="tab-content">
  <div class="tab-pane active" id="home" role="tabpanel" aria-labelledby="home-tab">...</div>
  <div class="tab-pane" id="profile" role="tabpanel" aria-labelledby="profile-tab">...</div>
  <div class="tab-pane" id="messages" role="tabpanel" aria-labelledby="messages-tab">...</div>
  <div class="tab-pane" id="settings" role="tabpanel" aria-labelledby="settings-tab">...</div>
</div>

Via JavaScript

Enable tabbable tabs via JavaScript (each tab needs to be activated individually):

$('#myTab button').on('click', function (event) {
  event.preventDefault()
  $(this).tab('show')
})

You can activate individual tabs in several ways:

$('#myTab button[data-target="#profile"]').tab('show') // Select tab by name
$('#myTab li:first-child button').tab('show') // Select first tab
$('#myTab li:last-child button').tab('show') // Select last tab
$('#myTab li:nth-child(3) button').tab('show') // Select third tab

Fade effect

To make tabs fade in, add .fade to each .tab-pane. The first tab pane must also have .show to make the initial content visible.

<div class="tab-content">
  <div class="tab-pane fade show active" id="home" role="tabpanel" aria-labelledby="home-tab">...</div>
  <div class="tab-pane fade" id="profile" role="tabpanel" aria-labelledby="profile-tab">...</div>
  <div class="tab-pane fade" id="messages" role="tabpanel" aria-labelledby="messages-tab">...</div>
  <div class="tab-pane fade" id="settings" role="tabpanel" aria-labelledby="settings-tab">...</div>
</div>

Methods

Asynchronous methods and transitions

All API methods are asynchronous and start a transition. They return to the caller as soon as the transition is started but before it ends. In addition, a method call on a transitioning component will be ignored.

See our JavaScript documentation for more information.

$().tab

Activates a tab element and content container. Tab should have either a data-target or, if using a link, an href attribute targeting a container node in the DOM.

<ul class="nav nav-tabs" id="myTab" role="tablist">
  <li class="nav-item" role="presentation">
    <button class="nav-link active" id="home-tab" data-toggle="tab" data-target="#home" type="button" role="tab" aria-controls="home" aria-selected="true">Home</button>
  </li>
  <li class="nav-item" role="presentation">
    <button class="nav-link" id="profile-tab" data-toggle="tab" data-target="#profile" type="button" role="tab" aria-controls="profile" aria-selected="false">Profile</button>
  </li>
  <li class="nav-item" role="presentation">
    <button class="nav-link" id="messages-tab" data-toggle="tab" data-target="#messages" type="button" role="tab" aria-controls="messages" aria-selected="false">Messages</button>
  </li>
  <li class="nav-item" role="presentation">
    <button class="nav-link" id="settings-tab" data-toggle="tab" data-target="#settings" type="button" role="tab" aria-controls="settings" aria-selected="false">Settings</button>
  </li>
</ul>

<div class="tab-content">
  <div class="tab-pane active" id="home" role="tabpanel" aria-labelledby="home-tab">...</div>
  <div class="tab-pane" id="profile" role="tabpanel" aria-labelledby="profile-tab">...</div>
  <div class="tab-pane" id="messages" role="tabpanel" aria-labelledby="messages-tab">...</div>
  <div class="tab-pane" id="settings" role="tabpanel" aria-labelledby="settings-tab">...</div>
</div>

<script>
  $(function () {
    $('#myTab li:last-child button').tab('show')
  })
</script>

.tab(‘show’)

Selects the given tab and shows its associated pane. Any other tab that was previously selected becomes unselected and its associated pane is hidden. Returns to the caller before the tab pane has actually been shown (i.e. before the shown.bs.tab event occurs).

$('#someTab').tab('show')

.tab(‘dispose’)

Destroys an element’s tab.

Events

When showing a new tab, the events fire in the following order:

hide.bs.tab (on the current active tab)
show.bs.tab (on the to-be-shown tab)
hidden.bs.tab (on the previous active tab, the same one as for the hide.bs.tab event)
shown.bs.tab (on the newly-active just-shown tab, the same one as for the show.bs.tab event)

If no tab was already active, then the hide.bs.tab and hidden.bs.tab events will not be fired.

Event Type	Description
show.bs.tab	This event fires on tab show, but before the new tab has been shown. Use `event.target` and `event.relatedTarget` to target the active tab and the previous active tab (if available) respectively.
shown.bs.tab	This event fires on tab show after a tab has been shown. Use `event.target` and `event.relatedTarget` to target the active tab and the previous active tab (if available) respectively.
hide.bs.tab	This event fires when a new tab is to be shown (and thus the previous active tab is to be hidden). Use `event.target` and `event.relatedTarget` to target the current active tab and the new soon-to-be-active tab, respectively.
hidden.bs.tab	This event fires after a new tab is shown (and thus the previous active tab is hidden). Use `event.target` and `event.relatedTarget` to target the previous active tab and the new active tab, respectively.

$('button[data-toggle="tab"]').on('shown.bs.tab', function (event) {
  event.target // newly activated tab
  event.relatedTarget // previous active tab
})