how to create variables using javascript

//choose the best for your solution
var myVariable = 22; //this can be a string or number. var is globally defined

let myVariable = 22; //this can be a string or number. let is block scoped

const myVariable = 22; //this can be a string or number. const is block scoped and can't be reassignedvar one = 1; // variable stores numeric value

var two = 'two';  // variable stores string value

var three;  // declared a variable without assigning a value
var myVar;       //unitialized variable( can be intiallized later )
var number = 1; //number
var string = " hello world " ; //string
var boolean = true ;  //boolean
myVar = function(){  //variable can hold function
  
};var x = 5;         // assign the value 5 to x