javascript store variable in function code example

Example 1: how to store variable in javascript

var example1 = "hello this is string variable" ; //this is string variable
var example2 = 12345 ; //this is numeric variable
var example3 = true ; //boolean variable

Example 2: js store function in variable

var foo = function(a){ return a * 2; }
var bar = foo(2);

foo = function(a){ return a / 2; }

bar = foo(bar);