// declaring variables
// variable names can also contain $ and _
var varName;                    // function scope, heusted!
let varName;                    // ES06 Standard, blockscope
const varName = "initialValue"; // variables which cannot be reassigned,
                                // must be initialized during declaration

// VARIABLE SCOPE:
/*  1 functionscope VS blockscope!
 *    ..if declared in function it is not availible outside of it
 *    ..if declared in block (loops for example)
 *    var is availible outside of the block/loop
 *    let is NOT availible outside of the block/loop
 *  2 local vs global scope!
 *    ...it is possible to have the same variable name as global and local scope,
 *    in this case the local scope is precedenced over the global!!
 */

• assigns myVariable the value of myName in case myName is truthly and "no-name-selected!" in case of falsly.
• In the below example the empty string will be evaluated falsly and the string "no-name-selected!" will be assigned!

let myName = "";
let myVariable = myName || "no-name-selected!";