آموزش html5

local storage in html

سلام
در بخش سی و هشتم آموزش HTML5 در مورد local storage صحبت می کنیم.
از local storage ها برای ذخیره سازی اطلاعات در مرورگر کاربر استفاده می شود.
ذخیره سازی توسط  local storage در مرورگر به صورت موقت می باشد و با بسته شدن مرورگر اطلاعات پاک می شوند.
برای ذخیره سازی اطلاعات به صورت دائمی باید از session storage استفاده شود.

With it, web applications can store data locally within the user’s browser.
Before HTML5, application data had to be stored in cookies, included in every server request. it is more secure, and large amounts of data can be stored locally, without affecting website performance.
Unlike cookies, the storage limit is far larger (at least 5MB) and information is never transferred to the server.
it is per origin (per domain and protocol). All pages, from one origin, can store and access the same data.
HTML provides two objects for storing data on the client:
window.localStorage – stores data with no expiration date
window.sessionStorage – stores data for one session (data is lost when the browser tab is closed)
Before using it, check browser support for localStorage and sessionStorage
The localStorage object stores the data with no expiration date. The data will not be deleted when the browser is closed, and will be available the next day, week, or year.
Name/value pairs are always stored as strings. Remember to convert them to another format when needed

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