HTML5 Localstorage & jQuery: Delete localstorage keys starting with a certain word

Question

I have 2 apps working together with localstorage and I was wondering how can I delete all the keys which start with note- and todo- . I know localstorage.clear() clears everything but thats not my aim.

Here is an example of what I have in my localstorage:

Where I want to delete all the todo-* with a button click and all note-* with other button click using jquery.

Thanks alot

Answer 1

Object.keys(localStorage)       .forEach(function(key){            if (/^todo-|^note-/.test(key)) {                localStorage.removeItem(key);            }        }); 

Answer 2

I used a similar method to @Ghostoy , but I wanted to feed in a parameter, since I call this from several places in my code. I wasn't able to use my parameter name in a regular expression, so I just used substring instead.

function ClearSomeLocalStorage(startsWith) {     var myLength = startsWith.length;      Object.keys(localStorage)          .forEach(function(key){              if (key.substring(0,myLength) == startsWith) {                 localStorage.removeItem(key);              }          });  }