Using Web Storage

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

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Related Info

• Web Storage API

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Samples

• Web Storage

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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.