JSFiddle - React, Tailwind, and code Playground

HTML

<input class="input_text" name="qty[]" type="text" id="qty_field1" size="6" value="1" />
<input class="input_text" name="qty[]" type="text" id="qty_field2" size="6" value="2" />
<input class="input_text" name="qty[]" type="text" id="qty_field3" size="6" value="3" />
<input class="input_text" name="qty[]" type="text" id="qty_field4" size="6" value="4" />
<input class="input_text" name="qty[]" type="text" id="qty_field5" size="6" value="5" />
<input class="input_text" name="qty[]" type="text" id="qty_field6" size="6" value="6" />
<input class="input_text" name="qty[]" type="text" id="qty_field7" size="6" value="7" />
<input class="input_text" name="qty[]" type="text" id="qty_field8" size="6" value="8" />
<input class="input_text" name="qty[]" type="text" id="qty_field9" size="6" value="9" />
<input class="input_text" name="qty[]" type="text" id="qty_field10" size="6" value="10" />
<input class="input_text" name="qty[]" type="text" id="qty_field11" size="6" value="11" />
<input class="input_text" name="qty[]" type="text" id="qty_field12" size="6" value="12" />
<input class="input_text" name="qty[]" type="text" id="qty_field13" size="6" value="13" />
<input class="input_text" name="qty[]" type="text" id="qty_field14" size="6" value="14" />
<input class="input_text" name="qty[]" type="text" id="qty_field15" size="6" value="15" />
<input class="input_text" name="qty[]" type="text" id="qty_field16" size="6" value="16" />
<input class="input_text" name="qty[]" type="text" id="qty_field17" size="6" value="17" />
<input class="input_text" name="qty[]" type="text" id="qty_field18" size="6" value="18" />
<input class="input_text" name="qty[]" type="text" id="qty_field19" size="6" value="19" />
<input class="input_text" name="qty[]" type="text" id="qty_field20" size="6" value="20" />
<input class="input_text" name="qty[]" type="text" id="qty_field21" size="6" value="21" />
<input class="input_text" name="qty[]" type="text" id="qty_field22" size="6" value="22" />
<input...

JavaScript

$( '#ser' ).click( function( e )
{
    var params = $.param( $( '[name="qty[]"]' ) );
    $( 'body' ).append( '<p>' + params + '</p>' );

    
} );