JavaScript: Convert an element to array

Write a program, that takes an element and return an array.

a.   Element can be of any type like number, boolean, string, object etc.,

b.   If the element is null (or) undefined, you should return an empty array.

c.   If element is an array itself, you should return ele only.

HelloWorld.js

function get_array(ele){
  if(ele === null || ele === undefined){
    return [];
  }
  
  if(Array.isArray(ele)) return ele;
  
  return [ele];
}

console.log(get_array(null));
console.log(get_array(undefined));
console.log(get_array([]));
console.log(get_array([123, 456]));
console.log(get_array(123));
console.log(get_array("Krishna"));

Output

Array []

Array []

Array []

Array [ 123, 456 ]

Array [ 123 ]

Array [ "Krishna" ]

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