Why this happen if score is 18 console send good

Question

var score = parseInt(readLine(), 10)
/*
88 and above => excellent
40-87 => good
0-39 => fail
*/
// tu código va aquí
if(score>=88){
console.log("excellent")
}else if((score <= 87) && (score => 40)){
console.log("good")
}else if(score <40){
console.log("fail")
}//Error

var score = parseInt(readLine(), 10)
/*
88 and above => excellent
40-87 => good
0-39 => fail
*/
// tu código va aquí
if(score>=88){
console.log("excellent")
}else if((score <= 87) && (score > 40)){
console.log("good")
}else if(score <40){
console.log("fail")
}//No error

Answer 1

In your first snippet, you have a typo when writing >= operator, you wrote it as => (in the first else...if block)

else if( ( score <= 87 ) && (score => 40 ) ) // <---- this line