Ginger Strawberry Spritzer

javascript html jquery

De ce funcția .data() din jQuery nu merge?

Am probleme cu funcția .data(), aceasta este deja a doua oară. Dacă folosesc .data - nu se adaugă nici un atribut:"to-do", toDoCount);

Mai înainte foloseam funcția attr, și ea funcționează perfect

delete_button.attr('data-to-do', toDoCount);

Am făcut totul ca în documentația jQuery. $("body").data("foo", 52);

// Create an initial toDoCount variable
    var toDoCount = 0;

    //  On Click event associated with the add-to-do function
    $("#add-to-do").on("click", function(event) {
      // prevent form from submitting

      // Get the to-do "value" from the textbox and store it a variable
      var thing_todo = $('#to-do').val().trim();

      // Create a new variable that will hold a "<p>" tag.
      // Then give it an ID in the following form:
      // "item-4" or "item-3" or "item-99", where the number is equal to toDoCount.
      // Then append the to-do "value" as text to this <p> element.
      var new_todo_element = $("<p>");
      new_todo_element.attr('id', 'item-' + toDoCount);
      new_todo_element.append(' ' + thing_todo);

      // Create a button with unique identifiers based on what number it is in the list. Again use jQuery to do this.
      // Give your button a data attribute called data-to-do and a class called "checkbox".
      // Lastly append the letter X inside.
      var delete_button = $("<button>");'to-do', toDoCount);
    //   delete_button.attr('data-to-do', toDoCount);

      // Append the button to the to do item

      // Add the button and toDoItem to the to-dos div

      // Clear the textbox when done

      // Add to the toDoCount
      toDoCount += 1;


    //  When a user clicks a check box then delete the specific content
    //  (NOTE: Pay attention to the unusual syntax here for the click event.
    //  Because we are creating click events on "dynamic" content, we can't just use the usual "on" "click" syntax.)
    $(document.body).on("click", ".checkbox", function() {

      // Get the number of the button from its data attribute and hold in a variable called  toDoNumber.
    //   var item_id =

      // Select and Empty the specific <p> element that previously held the to do item number.


<script src=""></script>

  <meta charset="UTF-8">
  <title>To Do App!</title>

    #todo-item {
      font-weight: 700;
      font-size: 2em;


  <!-- Title -->
  <h1>My To Do's!</h1>

  <!-- Input Form -->
    <span id="todo-item">To Do Item: <input id="to-do" type="text" ><input id="add-to-do" value="Add Item" type="submit"></span>


  <!-- To-Do List -->
  <div id="to-dos"></div>

Cum pot seta atributele acestui buton prin funcția data? Mulțumesc


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  • 2 bunches of strawberries
  • 1 lemon
  • 1 bunch of mint
  • 1 piece of ginger chopped
  • 1 bottle of sparkling water


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