如何使用jquery为多个输入添加输入字段？

learningbyexample 发表于 Dev

以身作则

我希望能够将n本书添加到n作家中。我想做的是这样的：

浅蓝色框是按钮。我想使用“添加书”按钮向作者添加多本书。

我拥有的代码是这样的：

   <form action="next.php" method="post">
        <div class="input_fields_wrap">
            <button class="add_field_button">Add Author</button>
            <div><input type="text" name="myAuthorText[]"></div>
            <button class="add_sub_field_button">Add Author Books</button>
            <div><input type="text" name="myBooksText[]"></div>
        </div>
    </form>    

<SCRIPT language="javascript">

    $(document).ready(function() {
    var max_fields      = 10; //maximum input boxes allowed
    var wrapper         = $(".input_fields_wrap"); //Fields wrapper
    var add_button      = $(".add_field_button"); //Add button ID
    var add_subButton      = $(".add_sub_field_button"); //Add sub button ID

    var x = 1; //initlal text box count
    $(add_button).click(function(e){ //on add input button click
        e.preventDefault();
        if(x < max_fields){ //max input box allowed
            x++; //text box increment
            $(wrapper).append('<div><input type="text" name="myAuthorText[]"/><a href="#" class="remove_field">Remove</a></div>'); //add input box
        }
    });

    $(add_subButton).click(function(e){ //on add input button click
        e.preventDefault();
        if(x < max_fields){ //max input box allowed
            x++; //text box increment
            $(wrapper).append('<div><input type="text" name="myBooksText[]"/><a href="#" class="remove_field">Remove</a></div>'); //add input box
        }
    });
    $(wrapper).on("click",".remove_field", function(e){ //user click on remove text
        e.preventDefault(); $(this).parent('div').remove(); x--;
    })
});

</SCRIPT>

我得到的是：

维杰

检查此代码段。我也用HTML和Javascript做了一些改动。请与原始版本进行比较，以了解不同之处。希望它能对您有所帮助：

$(document).ready(function() {
    var max_fields      = 10; //maximum input boxes allowed
    var wrapper         = $(".input_fields_wrap"); //Fields wrapper
    var commonPart      = $("#commonPart"); 
    var add_button      = $(".add_field_button"); //Add button ID
    var add_subButton      = $(".add_sub_field_button"); //Add sub button ID

    var x = 1; //initlal text box count
    $(add_button).click(function(e){ //on add input button click
        e.preventDefault();
        if(x < max_fields){ //max input box allowed
            var htmlToAdd = commonPart.clone().attr("id","commonPart_"+x);
            htmlToAdd.find(".addedDiv").remove();
            $(wrapper).append(htmlToAdd); //add input box
          x++; //text box increment
        }
    });

    $(document).on("click",".add_sub_field_button",function(e){ //on add input button click
        e.preventDefault();
        if(x < max_fields){ //max input box allowed
            x++; //text box increment
            $(this).closest(".commonPart").append('<div class="addedDiv"><input type="text" class="bookname" name="myBooksText[]" placeholder="Book name"/><a href="#" class="remove_field">Remove</a></div>'); //add input box
        }
    });
    $(wrapper).on("click",".remove_field", function(e){ //user click on remove text
        e.preventDefault(); $(this).parent('div').remove(); x--;
    })
});

.bookname{
  margin-left: 30px;
  }

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
   <form action="next.php" method="post">
        <div class="input_fields_wrap">
            <button class="add_field_button">Add Author</button>
            <div id="commonPart" class="commonPart">
            <div><input type="text" name="myAuthorText[]" placeholder="Auth name"></div>
            <button class="add_sub_field_button">Add Author Books</button>
            <div><input type="text" class="bookname" name="myBooksText[]" placeholder="Book name"></div>
             </div> 
        </div>
    </form>

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