How to check for empty json response with regex in javascript?

Question

My ajax response returns an empty response (ie with multiple lines of blank spaces) and i want to check that in my success function. How to check for empty json response with regex in javascript?

Answer 1

> /^\s*$/.test("foo")
false
> /^\s*$/.test("")
true
> /^\s*$/.test("   ")
true
> /^\s*$/.test("\n\n")
true

Answer 2

1. Set jQuery.ajax datatype to text

2. Create the following success callback

    $.ajax({ // other options.. dataType: 'text', success(planinTextData) { if (planinTextData !== '') { var data = JSON.parse(planinTextData); } } });