if object is array javascript
Array.isArray(object);
validate array javascript
Array.isArray([1, 2, 3]); // true
Array.isArray({foo: 123}); // false
Array.isArray('foobar'); // false
Array.isArray(undefined); // false
typeof array javascript
//The method Array.isArray(A) checks if A is an array
Array.isArray([1, 2, 3]); // true
Array.isArray('foobar'); // false for strings
Array.isArray({foo: 123}); // false for objects
javascript typeof array
Array.isArray(obj)
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