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This article mainly explains "how to use localStorage object". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn how to use localStorage object.

As mentioned earlier, the data stored by the localStorage object does not have an expiration date. Each piece of data is stored in a key / value pair. The name of the key identifying information (such as "first_name"), and the value is the value associated with the key (such as "Peter"). This is an example:

/ / Check if the localStorage object exists

If (localStorage) {

/ / Store data

LocalStorage.setItem ("first_name", "Peter")

/ / Retrieve data

Alert ("Hi," + localStorage.getItem ("first_name"))

} else {

Alert ("Sorry, your browser do not support local storage.")

}

The example shows:

The above JavaScript code has the following meaning:

LocalStorage.setItem (key,value) stores the value associated with the key.

LocalStorage.getItem (key) retrieves the value associated with the key.

You can also remove a specific item (if present) localStorage.removeItem ("first_name") from the store by passing the key name to the removeItem () method (for example).

"however, if you want to delete the entire storage, use the clear () method localStorage.clear ()." The clear () method takes no arguments and just clears all key / value pairs from localStorage immediately, so think carefully before using it.

Thank you for your reading, the above is the content of "how to use localStorage objects". After the study of this article, I believe you have a deeper understanding of how to use localStorage objects, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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