Why doesn't my code work?

Question

Hello, I was trying to make a code but when executing it, an error comes out, someone who knows JavaScript tell me my error, I'm new, this is the code
var Osito =(prompt("Responde solo con si o no: "));
if (Osito=Si)
alert('Felicidades puedes ver')
else if (Osito=no)
alert('no puedes ver')
else
alert('Responde solo con si o con no')

Answer 1

Miel De Abeja
var Osito =(prompt("Responde solo con si o no: "));
if (Osito=='Si')
alert('Felicidades puedes ver')
else if (Osito=='no')
alert('no puedes ver')
else
alert('Responde solo con si o con no')

Answer 2

let Osito = prompt("Responde solo con si o no: ");
if (Osito!=null) Osito = Osito.toLowerCase().trim();
if (Osito=='si')
alert('Felicidades puedes ver');
else if (Osito=='no')
alert('no puedes ver');
else
alert('Responde solo con si o con no');

Answer 3

Thank you Mohammed

Answer 4

The purpose of = is assigning.
But == checks if they are the same or not.

Answer 5

keeps giving error

Answer 6

Put Si inside quotes, 'Si', also for no, 'no'