// inside if else check
if(Array.isArray(myVarToTest)) {
// myVatToTest is an array
} else {
// myVarToTest is not an array
}let names=['Jhon','David','Mark'];
console.log(Array.isArray(names));
// true
let user={id:1,name:'David'};
console.log(Array.isArray(user));
// false
let age 18;
console.log(Array.isArray(age));
// falsevar data = ['a', 'b', 'c']
var isArray = Array.isArray(data)
console.log(isArray)var colors=["red","green","blue"];
if(Array.isArray(colors)){
//colors is an array
}Array.isArray([1, 2, 3]); // true
Array.isArray('asdf'); // falseArray.isArray([1, 2, 3]); // true
Array.isArray({toto: 123}); // false
Array.isArray("tototruc"); // false
Array.isArray(undefined); // false