Jquery Back Button.
back, jquery
Solution
Use hash hyperlinks and the `hashchange` event. In jQuery:
$(window).on('hashchange',function() {
var hash = location.hash.substring(1); // strip the leading # symbol
// now run code based on whatever the value of 'hash' is
});
HTML:
<a href="#hash1">function A</a>
<a href="#hash2">function B</a>
Now, whenever the user clicks the browser's "back" button (or an HTML button that triggers `history.go(-1)`), it will go back to whatever hash was previously selected and trigger the hashchange event again.
http://jsfiddle.net/mblase75/hL5FZ/
Warning: older browsers like IE7 may not support hashchange or `history.go()`.
Problem
I want to create a button which will run a previously ran function. ie i click buttonA to run Function A then click button B to run functionB i want to have a button which allows the user to go back to functionA by clicking a back button. i thought i could a global variable to hold previous statements but it would not work as every function ran would overwrite the stored statements. here is some psuodo code to kind of explain what i mean ``` var globalvar; globalvar = functionA; function B { run globalvar}; ```