Скачать или смотреть How to store json data in localstorage in angular 10

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okay, let's dive into how to store json data in local storage using angular 10 (or any similar angular version). this tutorial will cover the concepts, best practices, potential pitfalls, and provide a comprehensive code example.

*understanding local storage*

*what is it?* local storage is a web storage api that allows you to store key-value pairs locally within the user's browser. it's persistent, meaning the data remains even after the browser is closed and reopened (unless explicitly cleared or the browser data is cleared).

*key features:*
*persistence:* data persists across browser sessions.
*storage limit:* each domain (origin, protocol, and port) has its own separate local storage area. browsers typically impose storage limits, commonly around 5-10 mb per origin. this isn't a large amount, so be mindful of what you store.
*string-based:* local storage stores data as strings. therefore, you need to serialize and deserialize json data.
*synchronous:* local storage operations are synchronous, meaning they block the main thread while executing. avoid performing large, complex operations on the main thread, as they can lead to a poor user experience (freezing the ui).
*scope:* local storage is scoped to the origin (protocol, domain, and port) where the script runs. this means data stored from `http://example.com` is not accessible from `https://example.com` or `http://anotherdomain.com`.
*security:* local storage is not a secure place for sensitive information like passwords or credit card details. anyone with access to the user's computer or browser can access local storage data.

*when to use:* local storage is best suited for storing:
user preferences (theme, language, settings)
cached data to improve performance (e.g., results from an api call)
small amounts of user data that don't need high security

*when *not to use:**
sensitive ...

#Angular10 #LocalStorage #numpy
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