How to resolve TypeError: Cannot convert undefined or null to object

Question

I\'ve written a couple of functions that effectively replicate JSON.stringify(), converting a range of values into stringified versions. When I port my code over to JSBin an

Answer 1

If you're using Laravel, my problem was in the name of my Route. Instead:

Route::put('/reason/update', 'REASONController@update');

I wrote:

Route::put('/reason/update', 'RESONController@update');

and when I fixed the controller name, the code worked!