JavaScript Undefined vs Object -
Undefined – The undefined
means some variable is declared but the value of variable is not defined yet.
Object - Object
means some variable is declared but the value of variable is not defined that
is either function, object OR array.
You can easily be understanding in the below example in
detail –
let
emp; //The declaration
of emp is hoisted but the value of emp is
undefined.
console.log(emp);
//The output is undefined
console.log(typeof(null)); // object
console.log(typeof(undefined));
// undefined
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Anil Singh is an author, tech blogger, and software programmer. Book writing, tech blogging is something do extra and Anil love doing it. For more detail, kindly refer to this link..
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