Configuration Attributes

<!-- Currency formatting (default for prices) -->
<span data-next-display="cart.total" 
      data-format="currency">
  $99.99
</span>

<!-- Number only (no currency symbol) -->
<span data-next-display="cart.total" 
      data-format="number">
  99.99
</span>

<!-- Integer (no decimals) -->
<span data-next-display="cart.totalQuantity" 
      data-format="integer">
  5
</span>

<!-- Percentage -->
<span data-next-display="package.123.discountPercent" 
      data-format="percentage">
  30%
</span>

<!-- Custom decimal places -->
<span data-next-display="cart.tax" 
      data-format="currency"
      data-decimal-places="3">
  $8.999
</span>

<!-- Shows $100 instead of $100.00 -->
<span data-next-display="package.123.price"
      data-format="currency"
      data-hide-zero-cents="true">
  $100
</span>

<!-- Shows $99.99 (cents visible) -->
<span data-next-display="package.456.price"
      data-format="currency"
      data-hide-zero-cents="true">
  $99.99
</span>

<!-- Hidden when no discount -->
<div data-next-display="cart.discount"
     data-hide-if-zero="true">
  <span>Discount: </span>
  <span data-next-display="cart.discount">$0.00</span>
</div>

<!-- Hidden when no shipping cost -->
<div data-next-display="cart.shipping"
     data-hide-if-zero="true">
  Shipping: <span>$0.00</span>
</div>

<div data-next-display="cart.hasDiscount"
     data-hide-if-false="true">
  Discount applied!
</div>

<div data-next-display="package.123.inStock"
     data-hide-if-false="true">
  In stock and ready to ship
</div>

<!-- Convert cents to dollars -->
<span data-next-display="package.123.priceInCents"
      data-divide-by="100"
      data-format="currency">
  $9.99
</span>

<!-- Show annual price from monthly -->
<span data-next-display="package.123.monthlyPrice"
      data-multiply-by="12"
      data-format="currency">
  $1,188/year
</span>

<!-- Calculate percentage -->
<span data-next-display="cart.discount"
      data-divide-by="cart.subtotal"
      data-multiply-by="100"
      data-format="percentage">
  10%
</span>

<!-- Show price per item -->
<span data-next-display="cart.total"
      data-divide-by="cart.totalQuantity"
      data-format="currency">
  $19.99/item
</span>

<!-- Convert to percentage -->
<span data-next-display="package.123.savings"
      data-divide-by="package.123.originalPrice"
      data-multiply-by="100"
      data-format="percentage">
  30% off
</span>

<!-- Show price with tax -->
<span data-next-display="package.123.price"
      data-add="package.123.tax"
      data-format="currency">
  $109.99
</span>

<!-- Calculate savings -->
<span data-next-display="package.123.originalPrice"
      data-subtract="package.123.price"
      data-format="currency">
  Save $20.00
</span>

<!-- Amount needed for free shipping -->
<span data-next-display="100"
      data-subtract="cart.total"
      data-format="currency"
      data-hide-if-zero="true">
  $25.00 away from free shipping
</span>

<!-- Basic timer (5 minutes) -->
<div data-next-timer="true"
     data-duration="300">
  05:00
</div>

<!-- Timer with custom format -->
<div data-next-timer="true"
     data-duration="3600"
     data-format="hh:mm:ss">
  01:00:00
</div>

<!-- Timer with persistence -->
<div data-next-timer="true"
     data-duration="86400"
     data-persistence-id="sale-timer"
     data-format="dd:hh:mm:ss">
  1d 00:00:00
</div>

<!-- Timer with expiry action -->
<div data-next-timer="true"
     data-duration="600"
     data-on-expire="hide"
     data-expire-message="Offer expired">
  10:00
</div>

<!-- Swap mode - immediate cart update -->
<div data-next-package-selector="true"
     data-next-selection-mode="swap">
  <button data-next-package-id="123">Option A</button>
  <button data-next-package-id="456">Option B</button>
</div>

<!-- Select mode - requires add button -->
<div data-next-package-selector="true"
     data-next-selection-mode="select">
  <label>
    <input type="radio" name="package" data-next-package-id="123">
    Option A
  </label>
  <label>
    <input type="radio" name="package" data-next-package-id="456">
    Option B
  </label>
  <button data-next-action="add-selected">Add to Cart</button>
</div>

<!-- Multi-select mode -->
<div data-next-package-selector="true"
     data-next-selection-mode="multi"
     data-max-selections="3">
  <label>
    <input type="checkbox" data-next-package-id="123">
    Add-on A
  </label>
  <label>
    <input type="checkbox" data-next-package-id="456">
    Add-on B
  </label>
  <label>
    <input type="checkbox" data-next-package-id="789">
    Add-on C
  </label>
</div>

<!-- Custom loading text -->
<button data-next-action="add-to-cart"
        data-next-package-id="123"
        data-loading-text="Processing..."
        data-loading-class="is-busy">
  Add to Cart
</button>

<!-- Don't disable during loading -->
<button data-next-action="add-to-cart"
        data-next-package-id="123"
        data-disable-on-loading="false">
  Add to Cart
</button>

<!-- Custom spinner -->
<button data-next-action="add-to-cart"
        data-next-package-id="123"
        data-loading-spinner="true"
        data-spinner-class="custom-spinner">
  Add to Cart
</button>

<!-- 500ms debounce (default 300ms) -->
<button data-next-action="add-to-cart"
        data-next-package-id="123"
        data-debounce="500">
  Add to Cart
</button>

<!-- No debounce -->
<button data-next-quantity="increase"
        data-next-package-id="123"
        data-debounce="0">
  +
</button>

<!-- Optimistic UI updates -->
<button data-next-action="add-to-cart"
        data-next-package-id="123"
        data-optimistic="true">
  Add to Cart
</button>

<!-- Pessimistic (wait for server) -->
<button data-next-action="checkout"
        data-optimistic="false">
  Checkout
</button>

<!-- Custom success message -->
<button data-next-action="add-to-cart"
        data-next-package-id="123"
        data-success-message="Item added!"
        data-success-class="show-success">
  Add to Cart
</button>

<!-- Custom error handling -->
<button data-next-action="add-to-cart"
        data-next-package-id="123"
        data-error-message="Could not add item"
        data-error-class="show-error">
  Add to Cart
</button>

<!-- Redirect on success -->
<button data-next-action="add-to-cart"
        data-next-package-id="123"
        data-success-url="/cart">
  Add to Cart
</button>

<!-- Profile switcher with options -->
<button data-next-profile="premium"
        data-next-clear-cart="true"
        data-next-preserve-quantities="false">
  Switch to Premium
</button>

<!-- Profile selector dropdown -->
<select data-next-profile-selector="true"
        data-next-clear-cart="false">
  <option value="">Regular</option>
  <option value="premium">Premium Member</option>
  <option value="vip">VIP</option>
</select>

<!-- Profile-specific text -->
<button data-next-profile="vip"
        data-active-text="VIP Active"
        data-inactive-text="Activate VIP">
  Activate VIP
</button>

<!-- Quantity with custom step -->
<button data-next-quantity="increase"
        data-next-package-id="123"
        data-step="5">
  +5
</button>

<!-- Quantity with limits -->
<input type="number"
       data-next-quantity="input"
       data-next-package-id="123"
       min="1"
       max="10"
       step="1"
       data-enforce-limits="true">

<!-- Quantity sync with package -->
<div data-next-quantity-sync="123">
  <button data-next-quantity="decrease">-</button>
  <span data-next-display="package.123.quantity">1</span>
  <button data-next-quantity="increase">+</button>
</div>

<!-- Direct upsell with timer -->
<div data-next-upsell="offer"
     data-next-package-id="123"
     data-timer="30"
     data-auto-skip="true">
  <h3>Special Offer!</h3>
  <button data-next-upsell-action="add">Yes, Add This</button>
  <button data-next-upsell-action="skip">No Thanks</button>
</div>

<!-- Quantity upsell -->
<div data-next-upsell="quantity"
     data-next-package-id="123"
     data-suggested-quantity="3">
  <button data-next-upsell-quantity="decrease">-</button>
  <span data-next-upsell-quantity="display">1</span>
  <button data-next-upsell-quantity="increase">+</button>
</div>

<!-- Selection upsell -->
<div data-next-upsell-selector="true"
     data-required="true">
  <label>
    <input type="radio" data-next-upsell-option="456">
    Upgrade to Premium
  </label>
  <label>
    <input type="radio" data-next-upsell-option="789">
    Upgrade to Ultimate
  </label>
</div>

<head>
  <!-- API configuration -->
  <meta name="next-api-key" content="your-api-key">
  <meta name="next-debug" content="true">
  
  <!-- Page type -->
  <meta name="next-page-type" content="product">
  
  <!-- Navigation control -->
  <meta name="next-prevent-back-navigation" content="true">
  
  <!-- Upsell configuration -->
  <meta name="next-upsell-accept-url" content="/success">
  <meta name="next-upsell-decline-url" content="/cart">
  
  <!-- Timer configuration -->
  <meta name="next-timer-duration" content="600">
  <meta name="next-timer-persistence" content="session">
</head>

<div class="product-card">
  <!-- Dynamic price with formatting -->
  <span data-next-display="package.123.price"
        data-format="currency"
        data-hide-zero-cents="true">
    $99
  </span>
  
  <!-- Conditional discount display -->
  <div data-next-show="package.123.hasDiscount">
    <s data-next-display="package.123.originalPrice"
       data-format="currency">$129</s>
    <span data-next-display="package.123.discountPercent"
          data-format="percentage">23% off</span>
  </div>
  
  <!-- Configured action button -->
  <button data-next-action="add-to-cart"
          data-next-package-id="123"
          data-loading-text="Adding..."
          data-success-message="Added!"
          data-optimistic="true"
          data-debounce="300">
    Add to Cart
  </button>
</div>

<div class="checkout-container">
  <!-- Minimum order amount -->
  <div data-next-show="cart.total < 25">
    <span>Add $</span>
    <span data-next-display="25"
          data-subtract="cart.total"
          data-format="number">0</span>
    <span> more for checkout</span>
  </div>
  
  <!-- Checkout button with validation -->
  <button data-next-action="checkout"
          data-next-show="cart.total >= 25"
          data-loading-text="Processing..."
          data-optimistic="false"
          data-validate="true">
    Proceed to Checkout
  </button>
</div>

<!-- Uppercase text -->
<span data-next-display="package.123.name"
      data-text-transform="uppercase">
  PRODUCT NAME
</span>

<!-- Lowercase text -->
<span data-next-display="cart.customer.email"
      data-text-transform="lowercase">
  [email protected]
</span>

<!-- Title case -->
<span data-next-display="package.123.category"
      data-text-transform="title">
  Product Category
</span>

<!-- Sentence case -->
<span data-next-display="package.123.description"
      data-text-transform="sentence">
  Product description here.
</span>

<!-- Truncate text -->
<p data-next-display="package.123.description"
   data-truncate="150"
   data-truncate-suffix="...">
  Long description text will be cut off at 150 characters...
</p>

<!-- Extract first word -->
<span data-next-display="cart.customer.name"
      data-extract="first-word">
  John
</span>

<!-- Extract last word -->
<span data-next-display="cart.customer.name"
      data-extract="last-word">
  Smith
</span>

<!-- Extract initials -->
<span data-next-display="cart.customer.name"
      data-extract="initials">
  J.S.
</span>

<!-- Replace text -->
<span data-next-display="package.123.status"
      data-replace="in_stock:In Stock,out_of_stock:Out of Stock">
  In Stock
</span>

<!-- Format date -->
<span data-next-display="order.createdAt"
      data-date-format="MM/dd/yyyy">
  12/25/2023
</span>

<!-- Relative time -->
<span data-next-display="order.createdAt"
      data-date-format="relative">
  2 hours ago
</span>

<!-- Time only -->
<span data-next-display="order.createdAt"
      data-date-format="HH:mm">
  14:30
</span>

<!-- Add days to date -->
<span data-next-display="order.createdAt"
      data-add-days="7"
      data-date-format="MM/dd/yyyy">
  01/01/2024
</span>

<!-- Countdown to date -->
<span data-next-countdown="order.estimatedDelivery"
      data-format="dd:hh:mm:ss">
  3d 12:45:30
</span>

<!-- Convert text to URL -->
<a data-next-display="package.123.name"
   data-url-base="/products/"
   data-url-transform="slug"
   href="/products/awesome-product">
  Awesome Product
</a>

<!-- Generate share URL -->
<a data-next-share="facebook"
   data-share-url="window.location.href"
   data-share-title="package.123.name"
   href="https://facebook.com/sharer/...">
  Share on Facebook
</a>

<!-- Email link -->
<a data-next-display="cart.customer.email"
   data-link-type="email"
   data-email-subject="Your Order Confirmation"
   href="mailto:[email protected]?subject=Your Order Confirmation">
  [email protected]
</a>

<!-- Phone link -->
<a data-next-display="cart.customer.phone"
   data-link-type="tel"
   href="tel:+1234567890">
  (123) 456-7890
</a>

<!-- Dynamic classes based on values -->
<div data-next-display="package.123.stock"
     data-class-map="0:out-of-stock,1-5:low-stock,6+:in-stock"
     class="in-stock">
  Stock Level: <span>10</span>
</div>

<!-- Toggle classes -->
<button data-next-action="add-to-cart"
        data-next-package-id="123"
        data-toggle-class="added"
        data-toggle-duration="2000">
  Add to Cart
</button>

<!-- Conditional classes -->
<div data-next-show="cart.hasItems"
     data-show-class="has-items"
     data-hide-class="empty-cart">
  Cart content
</div>

<!-- Progress classes -->
<div data-next-display="cart.total"
     data-progress-target="100"
     data-progress-class="progress-{percentage}">
  <!-- Adds class like "progress-75" for 75% progress -->
</div>

<!-- Fade in on change -->
<span data-next-display="cart.total"
      data-animate="fade"
      data-animation-duration="300">
  $99.99
</span>

<!-- Slide animation -->
<div data-next-show="cart.hasItems"
     data-animate="slide"
     data-slide-direction="down">
  Cart items
</div>

<!-- Count up animation -->
<span data-next-display="cart.count"
      data-animate="count-up"
      data-count-duration="500">
  5
</span>

<!-- Pulse on change -->
<button data-next-action="add-to-cart"
        data-next-package-id="123"
        data-animate="pulse"
        data-trigger="success">
  Add to Cart
</button>

<!-- Input validation -->
<input type="email"
       data-next-validate="email"
       data-validate-message="Please enter a valid email"
       data-validate-class="invalid">

<!-- Real-time formatting -->
<input type="tel"
       data-format-input="phone"
       data-format-pattern="(000) 000-0000"
       placeholder="(123) 456-7890">

<!-- Auto-complete -->
<input type="text"
       data-next-autocomplete="cart.customer.cities"
       data-autocomplete-limit="5">

<!-- Input masking -->
<input type="text"
       data-input-mask="0000-0000-0000-0000"
       data-mask-placeholder="_"
       placeholder="0000-0000-0000-0000">

<!-- Lazy load image -->
<img data-next-display="package.123.image"
     data-lazy="true"
     data-lazy-threshold="100"
     data-lazy-placeholder="/placeholder.jpg"
     alt="Product image">

<!-- Preload critical data -->
<div data-preload="cart,packages"
     data-preload-priority="high">
  Critical content
</div>

<!-- Debounced input -->
<input type="search"
       data-next-search="packages"
       data-debounce="300"
       data-min-length="3">

<!-- Virtual scrolling -->
<div data-next-cart-items
     data-virtual-scroll="true"
     data-item-height="80"
     data-buffer-size="5">
</div>

<!-- Screen reader only text -->
<span data-next-display="cart.count"
      data-screen-reader-text="items in cart">
  5 <span class="sr-only">items in cart</span>
</span>

<!-- ARIA attributes -->
<button data-next-action="add-to-cart"
        data-next-package-id="123"
        data-aria-label="Add {package.123.name} to cart"
        data-aria-describedby="product-description">
  Add to Cart
</button>

<!-- Live region announcements -->
<div data-next-display="cart.count"
     data-announce-changes="true"
     data-announcement-text="{value} items in cart">
  5
</div>

<!-- Focus management -->
<button data-next-action="add-to-cart"
        data-next-package-id="123"
        data-focus-target="#cart-summary"
        data-focus-delay="500">
  Add to Cart
</button>

<!-- Remember user preferences -->
<select data-next-remember="currency-preference"
        data-storage="localStorage">
  <option value="USD">USD</option>
  <option value="EUR">EUR</option>
</select>

<!-- Session storage -->
<input type="text"
       data-next-remember="search-query"
       data-storage="sessionStorage"
       data-remember-key="last-search">

<!-- Clear storage -->
<button data-next-action="clear-storage"
        data-storage-keys="cart-data,user-preferences">
  Reset All Data
</button>

<!-- Debug information -->
<div data-debug="true"
     data-debug-show="cart"
     data-debug-format="json">
  <!-- Shows cart data in debug mode -->
</div>

<!-- Performance monitoring -->
<div data-monitor="render-time"
     data-monitor-threshold="100"
     data-monitor-alert="console">
  Content to monitor
</div>

<!-- Feature flags -->
<div data-feature-flag="new-checkout"
     data-fallback="hide">
  New checkout flow content
</div>

<!-- A/B testing -->
<div data-ab-test="checkout-flow"
     data-variant="a"
     data-probability="50">
  Variant A content
</div>

<form data-next-multi-step="true"
      data-step-validation="true"
      data-save-progress="true">
  
  <!-- Step 1 -->
  <div data-step="1" 
       data-step-title="Contact Information"
       data-next-show="form.currentStep === 1">
    <input type="email" 
           name="email" 
           data-validate="email" 
           required>
    <button data-next-step="next"
            data-validate-current="true">
      Next
    </button>
  </div>
  
  <!-- Step 2 -->
  <div data-step="2" 
       data-step-title="Shipping Address"
       data-next-show="form.currentStep === 2">
    <input type="text" 
           name="address" 
           data-validate="required"
           data-autocomplete="address">
    <button data-next-step="previous">Back</button>
    <button data-next-step="next">Next</button>
  </div>
  
  <!-- Step 3 -->
  <div data-step="3" 
       data-step-title="Review & Submit"
       data-next-show="form.currentStep === 3">
    <button data-next-action="checkout"
            data-validate-all="true">
      Complete Order
    </button>
  </div>
</form>

<div class="pricing-calculator">
  <!-- Base price -->
  <div data-next-display="package.123.basePrice"
       data-format="currency"
       data-id="base-price">
    $99.99
  </div>
  
  <!-- Add-ons -->
  <div data-calculate="true"
       data-base="base-price"
       data-add="selected-addons"
       data-format="currency">
    $129.99
  </div>
  
  <!-- Quantity discount -->
  <div data-quantity-discount="true"
       data-breaks="5:0.1,10:0.15,20:0.2"
       data-apply-to="calculated-total">
    Bulk discount applied
  </div>
  
  <!-- Final total -->
  <div data-next-display="calculated-total"
       data-add="shipping"
       data-add="tax"
       data-format="currency"
       data-animate="count-up">
    $156.78
  </div>
</div>

<div data-recommendations="true"
     data-based-on="cart.items"
     data-algorithm="collaborative"
     data-limit="4"
     data-exclude="cart.packageIds">
  
  <template data-recommendation-template>
    <div class="recommendation-item">
      <img data-src="{item.image}" 
           data-lazy="true"
           alt="{item.name}">
      <h4>{item.name}</h4>
      <span data-format="currency">{item.price}</span>
      <button data-next-action="add-to-cart"
              data-next-package-id="{item.id}"
              data-track="recommendation-click">
        Add to Cart
      </button>
    </div>
  </template>
</div>