Can't find error

Question

var score = parseInt(readLine(), 10)
/*
88 and above => excellent
40-87 => good
0-39 => fail
*/
// your code goes here
score=78;
if(score=>88)
console.log("excellent");
else if(score=>40 && score<88)
console.log("good");
else console.log("fail");

Answer 1

Write comparison operators as >= , <= not like =< or =>.

Answer 2

You had not defined the readline method