can i use a array in array.push ? code example

Example 1: pushing to an array

array = ["hello"]
array.push("world");

console.log(array);
//output =>
["hello", "world"]

Example 2: array.push

var vegetables = ['Capsicum',' Carrot','Cucumber','Onion'];
vegetables.push('Okra');
//expected output ['Capsicum',' Carrot','Cucumber','Onion','Okra']; 
// .push adds a thing at the last of an array