variable function in javascript code example

Example 1: javascript declare a variable

//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 reassigned

Example 2: declare function javascript

function myFunction(var1, var2) {
  return var1 * var2;
}

Example 3: how to define variable in javascript

var <variable-name>;

var <variable-name> = <value>;