Mazes - The Essential Guide to HTML5 - page 228

Code Explanation

try {

Set up try clause

olddate = new Date(); Define new Date

localStorage.setItem("lastdate",olddate);

Store in local storage using the
key "lastdate"

alert("Stored: "+olddate); Display message to show what

was stored

}

Close try clause

Catch(e) { Start catch clause: if there was a

problem

alert("Error with use of local storage:
"+e);}

Display message

Close try clause

}

Return false; Return false to prevent any

page refresh

} Close function

function remove() {

Remove function header

if (typeof(localStorage) == "undefined")
{

Check if localStorage
recognized

alert("Browser does not recognize HTML
local storage.");

Display alert message

Close if clause

}

else { Else

localStorage.removeItem('lastdate'); Remove the item stored using the

key 'lastdate' .

alert("Removed date stored.");

Display message indicating what
was done