How can I check if a localstorage variable is null or undefined?

Question

I have this code:

var sideBar = localStorage.getItem(\'Sidebar\');

I want to check if sideBar is defined and not null in an if statement. I am

Answer 1

This should work, and no there isn't a way outside of an "if", even if it ternary operator,

if( !value ) {
}

This will check if there value is "truethy" and should cover both "null" and "undefined".