value === !Infinity actually makes a falsy value

Instead, use !== (strict equality operator) when checking for a finite number.

Hey Алексей, Thanks for reading and responding!

Using the ! operator (the NOT operator) actually invokes truthy and falsy rules in JavaScript. Since Infinity is truthy, then !Infinity will always have a value of false. And your number value would never equal false:

console.log(!Infinity) // false
console.log(3 === !Infinity) // false
console.log(3 !== Infinity) // true

Instead, you want to use !== (the strict equality operator).

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