JavaScript Storage & BOM
8 lessonsAbout 48 minutesAdvanced
This part of the JavaScript Tutorial runs from JavaScript localStorage through to JavaScript navigator Object. There are 8 lessons here, and working through them takes about 48 minutes at a steady pace.
It follows on from JavaScript Regular Expressions, so finish that first if you have not already — the examples below assume you are comfortable with it.
Each lesson below says what it covers before you open it. Read them in order the first time; afterwards this page works as a index you can jump back into when you need to check one thing.
- 1JavaScript localStoragelocalStorage saves data in the browser that survives closing the page.
- 2JavaScript sessionStoragesessionStorage behaves like localStorage but clears when the tab closes.
- 3JavaScript Storing ObjectsJSON.stringify and JSON.parse let you save objects and arrays in storage.
- 4JavaScript Storage EventsThe storage event fires in other tabs when localStorage changes.
- 5JavaScript window Objectwindow represents the browser tab and is the top of the global scope.
- 6JavaScript location Objectlocation describes the current URL and can be used to navigate to another page.
- 7JavaScript history Objecthistory controls the browser's back and forward navigation stack.
- 8JavaScript navigator Objectnavigator describes the browser and device running the page.