How to create text box dynamically from javascript

Question

I am trying to create textboxes inside <div id="screens"> </div>. I have a drop down menu for which I select the number of textboxes to be created.

The JavaScript code I've written here is not working:

code:

function create(param) {
    document.getElementById("screens").innerHTML="";          
    for(var i = 0; i < param; i++) {
        alert(i);
        document.write('<input type="text" name="Fname">');
    }
}

This is adding textboxes by clearing all contents of the current page, but I want the textboxes to be added to <div id="screen"> </div>. How can I do this?

Please read some documentation about document.write(). You've used innerHTML in your code, why not to reuse it? — Teemu
– Teemu, Commented Aug 20, 2013 at 4:34

Raúl Juárez · Accepted Answer · 2013-08-20 04:39:59Z

7

Try something like this:

function create(param) {
    var s= "";
    for(var i = 0; i < param; i++) {
        s+= '<input type="text" name="Fname">'; //Create one textbox as HTML
    }
    document.getElementById("screens").innerHTML=s;
}

answered Aug 20, 2013 at 4:39

Raúl Juárez

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Comments

rink.attendant.6 · Accepted Answer · 2013-08-20 04:42:37Z

1

Since you've tagged jQuery in your question, I'll assuming that you're using jQuery.

function create(param) {
    'use strict';

    var i;

    $("#screens").empty();

    for(i = 0; i < param; i += 1) {
        $('#screens').append('<input type="text" name="Fname">');
    }
}

jsFiddle

A pure JavaScript implementation would look like this:

function create(param) {
    'use strict';

    var i, target = document.getElementById('screens');
    target.innerHTML = '';

    for(i = 0; i < param; i += 1) {
        target.innerHTML += '<input type="text" name="Fname">';
    }
}

jsFiddle

edited Aug 20, 2013 at 4:42

answered Aug 20, 2013 at 4:37

rink.attendant.6

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Comments

federicot · Accepted Answer · 2013-08-20 04:45:09Z

0

function create(param) {
    var screens = document.getElementById('screens'),
        innerHTML = '',
        i;

    for (i = 0; i < param; i += 1) {
        alert(i);
        innerHTML += '<input type="text" name="Fname">';
    }

    screens.innerHTML = innerHTML;
}

answered Aug 20, 2013 at 4:45

federicot

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Comments

artwl · Accepted Answer · 2013-08-20 04:56:01Z

0

function create(param) {
    var target = document.getElementById('screens'),
        oFrag=document.createDocumentFragment();

    target.innerHTML = '';

    for (var i = 0; i < param; i++) {
        var iptNode = document.createElement("input");
        iptNode.setAttribute("type", "text");
        iptNode.setAttribute("name", "Fname");
        oFrag.appendChild(iptNode);
    }

    target.appendChild(oFrag);
}

answered Aug 20, 2013 at 4:56

artwl

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Comments

Mehandi Hassan · Accepted Answer · 2015-07-02 10:41:28Z

0

<script>
var newInput4=document.createElement("input");
newInput4.className="form-control ";
newInput4.name="totalunit"+instance;
newInput4.placeholder="Unit";   
newInput4.type="text";
</script>

answered Jul 2, 2015 at 10:41

Mehandi Hassan

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