如何在某些条件下首先输入值，在第二个文本框中显示值

Question

greeting to all, is there any way to get value in second text box, i have some filed as shown in my image, if we type 90 in result text box then automaticaly the value of nor/ab field should be "Low", for 180 should be high. so we have to check over condition for 110-170(range field)...

actualy i am puzzled for the value of range field in the form of 110-170.... Any idea will be appreciated....thanks in advance...

Answer 1

Try to do this way:

var result = $('#result');
var sel = $('#select');

result.on('keydown keyup', function () {
   if (result.val() < 90) {
      $('option[value="low"]', sel).prop('selected', true);
    } else if (result.val() > 90) {
      $('option[value="high"]', sel).prop('selected', true);
    }
});

Demo Fiddle