Check if value is an array in JavaScript

Array.isArray(val) is what you are looking for

You might think of using typeof [] would do the job and return ”array”, but thats not true, becuase in JavaScript all Non-primitive data types are of type ”object”, so we will another way to check the type of an array, and that’s where Array.isArray() shine.

 const arr = [1, 2, 3];
  typeof arr; // 'object'
  Array.isArray(arr);  // true

  const text = "some text";
  typeof text; // 'string'
  Array.isArray(text);  // false

  const obj = { a: 1, b: 2 };
  typeof obj; // 'object'
  Array.isArray(obj);  // false