Uncaught TypeError: Cannot set property 'value' of null

Question

I\'m trying to pass the entered text to the controller using an ajax request. But i\'m getting athe error \"Uncaught TypeError: Cannot set property \'value\' of null \" whe

Answer 1

It seems to be this function

h_url=document.getElementById("u").value;

You can help yourself using some 'console.log' to see what object is Null.