AI solution for JavaScript Quiz on BFE.dev
101. Equal IV

The code will output false for the first console.log statement and true for the second console.log statement.

Explanation:

• In the first line, [0] represents an array with one element that is the number 0. '' is an empty string. The == operator compares them for equality, but since they are of different data types, JavaScript does type coercion to make them comparable. In this case, the empty string is coerced into the boolean value false, then into the number value 0, which means the comparison becomes [0] == 0. Since [0] is an array, and arrays are objects in JavaScript, it is converted into a string "[0]" and then into the number value 0. So the comparison ends up being 0 == 0, which is true. Hence, the first console.log output is false because the comparison [0] == '' is false after type coercion.
• In the second line, [0] and 0 are both of the same data type (number), so no type coercion is needed. Hence, the comparison [0] == 0 is true because [0] is an array with one element that is the number 0, which is equal to the number 0.