How to pass variable to href in javascript?

Question

How to pass this variable value here? Below code is not working. And all other discussions on Stackoverflow are unclear.

Answer 1

You have fetch value of the field, Currently you are using DOM object

Use

 var dist = document.getElementById('value').value;

OR

Use

 if (dist.value!=""){
     window.location.href="district.php?dist="+dist.value;

instead of

if (dist!=""){
     window.location.href="district.php?dist="+dist;