Using Web Storage

This topic describes how you can manage application data in key-value format, using the Web storage.


Related Info


Samples


To manage application data, you can use the Web standard Web Storage API.

Use the following methods to manage the Web storage:

  • To store a key-value pair, use the setItem() method:

    localStorage.setItem('sample', 'This is just sample text.');
    

    If the key does not exist, it is created with the specified value. If the key already exists, its value is updated.

  • To retrieve a key value, use the getItem() method:

    var value = localStorage.getItem('sample');
    console.log(value);
    

    If the key does not exist, the method returns null.

  • To remove a key, use the removeItem() method:

    localStorage.removeItem('sample');
    

    If the key does not exist, this method does nothing.