typeof checking code example
Example 1: js typeof number
console.log(typeof 93);
// Output = "number"
console.log(typeof 'Maximum');
// Output = 'string'
console.log(typeof false);
// Output = "boolean"
console.log(typeof anUndeclaredVariable);
// Output = "undefined"
Example 2: typeof in js
var someValue = 'this is string';
console.log(typeof(someValue)); // this will return string