jquery - use a variable outside the function

Question

How I Can use a variable outside the function where it was declared?

$(function() {
    function init() {
        var bwr_w = $(window).width();
    }
    in         


        

Answer 1

try this

$(function() {
  var bwr_w = 0;
  function init() {
    bwr_w = $(window).width();
  }
  init();
  $('#button').click(function() {
    alert('The Browser Height is' + bwr_w);
  });
});