Java script input data convert to base 64 formate on client side only

i am usig this code i want to convert input java scriptdata into Base64 string formate any one please help

$(function () {
            $("#btnSubmit").click(function () {
                var divContents = $("#Grid").html();
                var dt ="<b>
                            </b>
                            <p></p>

                            <br>
                            <p>
                                <b>
                                    (Note :- Every column appearing in the form has to be filled in words not by dashes and dots)
                                    <br>
                                </b>
                            </p>
                            <table style="border: 1px solid #dee2e6;color:#212529;font-size: 12pt; width:100%;border-color: grey;text-indent: initial;text-align:center;" cellspacing="0" cellpadding="3">
                                <tbody><tr>
                                    <th style="width:250px;border: 1px solid #ccc;padding: 0.75rem; font-weight:100px;">1. The permanent address(with Telephone no and Mobile no. if any) of the public servant</th>
                                    <td style="width:70px;border: 1px solid #ccc;padding: 0.75rem; ">
                                        7 th, Shivaji Nagar, ಬೆಂಗಳೂರು ದಕ್ಷಿಣ
                                        ,BENGALURU,  630047<br> Landline: 040-4232324
                                        <br>Mobile Number:7411211953

                                    </td>
                                </tr>
                                <tr>
                                    <th style="width:150px;border: 1px solid #ccc;padding: 0.75rem;">2. Names of the members of the Family of the public  servant  and his relationship with each of them (Reg. 'Family', see explanation to section 22 of the Lokayukta Act)</th>
                                    <td style="width:70px;border: 1px solid #ccc;padding: 0.75rem; ">
                                        <table style="width:70%; padding: 0.75rem; margin-left:auto;margin-right:auto;">
                                            <tbody><tr>
                                                <th style="padding: 0.75rem;text-align:center;  vertical-align: top;">
                                                    Public Servant
                                                </th>
                                                <th style="padding: 0.75rem;text-align:center;  vertical-align: top;">
                                                    Relationship
                                                </th>

                                            </tr>
                                                <tr>

                                                    <td style="width:100px;text-align:center;">
                                                        Pakala Thulasi Ram
                                                    </td>
                                                    <td style="width:100px;text-align:center;">
                                                        Self
                                                    </td>

                                                </tr>
                                                <tr>

                                                    <td style="width:100px;text-align:center;">
                                                        Prameela
                                                    </td>
                                                    <td style="width:100px;text-align:center;">
                                                        Wife
                                                    </td>

                                                </tr>
                                                <tr>

                                                    <td style="width:100px;text-align:center;">
                                                        Bhavitha
                                                    </td>
                                                    <td style="width:100px;text-align:center;">
                                                        Daughter
                                                    </td>

                                                </tr>
                                                <tr>

                                                    <td style="width:100px;text-align:center;">
                                                        PSC
                                                    </td>
                                                    <td style="width:100px;text-align:center;">
                                                        Father
                                                    </td>

                                                </tr>
                                                <tr>

                                                    <td style="width:100px;text-align:center;">
                                                        AM
                                                    </td>
                                                    <td style="width:100px;text-align:center;">
                                                        Mother
                                                    </td>

                                                </tr>


                                        </tbody></table>

                                    </td>
                                </tr>
                                <tr>
                                    <th style="width:150px;border: 1px solid #ccc;padding: 0.75rem;">3. Present annual income of the public servant and each one of the family members</th>
                                    <td style="width:70px;border: 1px solid #ccc;padding: 0.75rem; ">
                                        <table style="width:70%; padding: 0.75rem; margin-left:auto;margin-right:auto;">
                                            <tbody><tr>
                                                <th style="padding: 0.75rem;text-align:center;  vertical-align: top;">
                                                    Public Servant
                                                </th>
                                                <th style="padding: 0.75rem;text-align:center;  vertical-align: top;">
                                                    Relationship
                                                </th>
                                                <th style="padding: 0.75rem;text-align:center;  vertical-align: top;">
                                                    Annual Income (in Rupees)
                                                </th>


                                            </tr>
                                                <tr>

                                                    <td style="width:100px;text-align:center;">
                                                        Pakala Thulasi Ram
                                                    </td>
                                                    <td style="width:100px;text-align:center;">
                                                        Self
                                                    </td>
                                                    <td style="width:100px;text-align:center;">
                                                        400000.00
                                                    </td>
                                                </tr>
                                                <tr>

                                                    <td style="width:100px;text-align:center;">
                                                        Prameela
                                                    </td>
                                                    <td style="width:100px;text-align:center;">
                                                        Wife
                                                    </td>
                                                    <td style="width:100px;text-align:center;">
                                                        300000.00
                                                    </td>
                                                </tr>
                                                <tr>

                                                    <td style="width:100px;text-align:center;">
                                                        Bhavitha
                                                    </td>
                                                    <td style="width:100px;text-align:center;">
                                                        Daughter
                                                    </td>
                                                    <td style="width:100px;text-align:center;">
                                                        0.00
                                                    </td>
                                                </tr>
                                                <tr>

                                                    <td style="width:100px;text-align:center;">
                                                        PSC
                                                    </td>
                                                    <td style="width:100px;text-align:center;">
                                                        Father
                                                    </td>
                                                    <td style="width:100px;text-align:center;">
                                                        600000.00
                                                    </td>
                                                </tr>
                                                <tr>

                                                    <td style="width:100px;text-align:center;">
                                                        AM
                                                    </td>
                                                    <td style="width:100px;text-align:center;">"
               // var windowObject = window.open();

                //windowObject.document.write(divContents);
                var data = "data";
                //alert(divContents);
               // document.getElementById("divhtml").innerHTML = divContents;
               // var htmldata = document.getElementById("divhtml").innerHTML;
                alert(dt);
                $.ajax({
                    
                    type: 'POST',
                    url: "/PreviewForm4/ExportExcel",
                    data: '{exportdata: "' + dt + '"}',
                    contentType: "application/json; charset=utf-8",
                    dataType: "json",
                   
                     success: function (response) {
                         
                    },
                    failure: function (response) {
                        alert(response.responseText);
                    },
                    error: function (response) {
                        alert(response.responseText);
                    }
                });
            });
        });

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Prasad Raveendran3y ago
In this example, the code is embedded within an HTML document. The content of the
element is accessed using its ID (yourDivId). The Base64-encoded string is then logged to the console, but you can modify the code to perform any desired operation.

Convert Div Content to Base64 Hello, World! This is an example div.

reader.readAsDataURL() is a method of the FileReader object in JavaScript. It is used to read the contents of a Blob or File object and convert it to a data URL, specifically a Base64-encoded string.

When you call reader.readAsDataURL(blob), it starts reading the data from the Blob object specified (blob in this case) and converts it into a Base64-encoded string representation. The onloadend event handler is triggered when the reading is complete.

The resulting data URL contains a prefix indicating the data type (e.g., data:text/html;base64, for HTML content), followed by the Base64-encoded data representing the contents of the Blob or File object.

In the code example provided earlier, reader.readAsDataURL(new Blob([divContent], { type: 'text/html' })) reads the HTML content stored in the divContent variable, creates a Blob object with that content and MIME type of text/html, and then converts it to a Base64-encoded string using readAsDataURL().
Thulasiram pakala3y ago
Html data when i convert btoa type it will not work it will not show data alert message also

Amit Mohanty3y ago

var divContents = $("#Grid").html();
var encodedData = btoa(divContents); // Convert to Base64 string

Thulasiram pakala3y ago
divcontent i want COnvert Base64 Encoding Formate

Java script input data convert to base 64 formate on client side only

Hello, World!