// 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));
// falseif (typeof array !== 'undefined' && array.length === 0) {
// the array is defined and has no elements
}
Array.isArray([]) //true
Array.isArray({}) //false
Array.isArray('') //false
Array.isArray(null) //falsevar colors=["red","green","blue"];
if(Array.isArray(colors)){
//colors is an array
}if(Object.prototype.toString.call(someVar) === '[object Array]') {
alert('Array!');
}