How to Dynamically Create Input Form Elements Based on User-Specified Number?

Creating Dynamic Input Form Elements for User-Specified Number

Understanding the task at hand, the user intends to dynamically generate input form elements based on a user-provided integer. The goal is to provide a simple solution without overcomplicating the process.

Utilizing JavaScript, we can approach this challenge by employing the following steps:

1. Retrieve User Input:

   • Utilize an onclick event handler for the "Fill Details" link to retrieve the integer value from the input field.
   • Assign a unique id attribute to the input field, such as "member", to easily access its value.

2. Create Container for Input Elements:

   • Define a container element, such as a
     , where the dynamically generated elements will be placed.

3. Generate Input Elements:

   • Iterate through a loop based on the user-provided integer value.
   • Use document.createElement() to create new elements and set their type and name attributes.
   • Append the created elements to the specified container using appendChild().

4. Clear Previous Elements (Optional):

   • If required, use hasChildNodes() and removeChild() to remove any existing elements within the container before generating new ones.

Code snippet:

<code class="javascript">function addFields(){
    // Get user input for number of elements
    var number = document.getElementById("member").value;

    // Get the element where inputs will be placed
    var container = document.getElementById("container");

    // Remove any existing elements
    while (container.hasChildNodes()) {
        container.removeChild(container.lastChild);
    }

    // Create and append input elements
    for (i=0; i<number; i++){
        container.appendChild(document.createTextNode("Member " + (i+1)));
        var input = document.createElement("input");
        input.type = "text";
        input.name = "member" + i;
        container.appendChild(input);
        container.appendChild(document.createElement("br"));
    }
}</code>

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