Which of the following will correctly check if a variable is an array in JavaScript?
a)
Array.isArray(variable)b)
typeof variable === 'array'c)
variable.isArray()d)
variable instanceof ObjectAnswer:
a)
Array.isArray(variable)Explanation:
The most reliable way to check if a variable is an array in JavaScript is by using Array.isArray(variable). This method returns true if the variable is an array and false otherwise.