Select Value of Input Element Inside HTML Table Using Jquery

function sum_cr(ele) {
  alert('Hi')  alert('using prev(): '+$(ele).parent('td').prev('td').find('input').val());  //or you can use below for input value under 2nd td element  alert('using nth-child(): '+$('tr td:nth-child(2)').find('input').val());  //if you know attributes of TD tag, u can use below  alert('using attribute selector: '+$('td[headers="ACNO"]').find('input').val());  //by using siblings, get the parent 2nd sibling  alert('using siblings(): '+$(ele).parent().siblings(':nth-child(2)').find('input').val());}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script><table>  <tbody>    <tr>      <td headers="DAYDT">        <label for="f01_0050" class="u-VisuallyHidden"> </label>        <input name="f01" value="28-05-2018" type="text">      </td>      <td headers="ACNO">        <label for="f03_0050" class="u-VisuallyHidden"> </label>        <input name="f03" value="1413/4" class="accno" type="text">      </td>      <td headers="CREDIT">        <label for="f04_0050" class="u-VisuallyHidden"></label>        <input name="f04" value="100" class="cr_amt" onblur="sum_cr(this);" id="f04_0050" type="text">      </td>      <td headers="FINE AMT">        <label for="f06_0050" class="u-VisuallyHidden"> </label>        <input name="f06" value="" id="f06_0050" type="text">      </td>    </tr>  </tbody></table>

How to get all values inside HTML table using JQuery

You can find the input and use .val() to get its value if the table cell's text is empty. Checkboxes and text inputs will need to be handled separately.

const text = $(this).text();
if(text){
   myRows[index][headersText[cellIndex]] = text;
} else {
   const input = $(this).find('input');
   if(input.is(":checkbox")){
      myRows[index][headersText[cellIndex]] = +input.prop('checked');
   } else {
      myRows[index][headersText[cellIndex]] = input.val();
   }
}

Select <input> in a specific <td> element using jQuery

There are two problems in your code.

1. <input> elements don't have innerHTML, you can use val() to get the value of an input.
2. To select the nth <td> element, you need to use eq(index) on the td element and not on the <input>.

Assuming this refers to the any element inside <tr>.

$(this).closest('tr').find('input').eq(0).html()

should be

$(this).closest('tr').find('td').eq(0).find('input').val()
                     ^^^^^^^^^^^^^^^^^                    : Get the 0 index `td`
                                       ^^^^^^^^^^^^^      : select input inside it
                                                     ^^^^ : Get the value of input

Get input text from a table cell using jquery

You need to access the value of the input, not the value of the td:

$(function(){
    $("#onpressofabutton").click(function(){
        var data1 = $(this).find("td:eq(0) input[type='text']").val();
        var data2 = $(this).find("td:eq(1) input[type='text']").val();
    });
});

looping a html table with inputs to get values

You can loop like below. You need to treat checkboxes differently to get their values:

$("#tableScanItems tr").each(function (){
    $(this).closest('tr').find("input").each(function() {
        var elem = $(this);
        if (elem.is(':checkbox')) {
           console.log( !!elem.attr("checked"));
        } else {
            console.log(elem.val());
        }
    });
});

Working fiddle here: https://jsfiddle.net/5yt9hon1/1/

unable to add select element in html table using jquery

You add jQuery object to string - this wrong. Try:

$("#tab tr:last").after("<tr><td><input type='checkbox' value='"+id+"'/></td><td><input type='text' value='"+name+"'/></td>"
                    +"<td><input type='text' value='"+address+"' /></td>"
                    +"<td>"+ispSelect[0].outerHTML+"</td>"
                    +"<td>"+idProofSelect[0].outerHTML+"</td>"
                    +"</tr>");
            }

How to get the value of an input field inside the table td using javascript selector?

The following code snippet should work

check this

$(function(){  var table=$("table");  alert(table.find('tr td:eq(0) input').val());});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script><table>  <tr>    <td><input type='checkbox' style='width:30px; height:20px;' class='radio_check_all prod-id-checkbox' id='prod-id-checkbox' value="{{ $val->id }}"></td>  </tr></table>