Accessing variable from different function

Question

I have the following code in HTML which creates a button, that when clicked creates some questions in my page, works fine.

Answer 1

According to How to declare a global variable in a .js file you can define a variable before any function is called and then use it in different functions.

var global1 = "I'm a global!";

function setGlobal () {
    global1= document.getElementById('num_questions').value;
}
function testGlobal () {
    alert(global1);
}