How can I display some properties of this variable?

Question

I am new to Javascript and this is why I got stuck. I want to display some properties of the variable name through id

Answer 1

//Here is my code.

var person = {
firstName: "Jane",
age: 20,
sex: "Female",
};

// I used this to display some properties

document.getElementById("demo).innerHTML = person.name + " is" + person.age + "years old",

Answer 2

you need at least to close the "demo" string (missing closing quote)...

you must have an element with id="demo" to be able to select it, and the code need to have been parsed before trying to access it with js ^^

Answer 3

visph i have that in the html

Something like this:👇

<h1 id="demo"> </h1>

Answer 4

ok.
you must close thr "demo" string, and be sure that your code run when your <h1 id="demo"> have been parsed ^^