Q301. What is the purpose of <figure> tag?
The **``** element represents self-contained content, optionally accompanied by a caption (``), that is referenced as a single unit from the main text flow: ```html Figur...
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Q302. How do you access web storage?
The Window object implements the `WindowLocalStorage` and `WindowSessionStorage` objects which has `localStorage`(window.localStorage) and `sessionStorage`(window.session...
Q303. What is the impact of indexes as keys?
Keys should be stable, predictable, and unique so that React can keep track of elements. In the below code snippet each element's key will be based on ordering, rather th...
Q304. What is the purpose of <figcaption> tag?
The **``** element provides a semantic caption or legend for its parent **``** element: ### Usage Rules: - Must be nested as either the **first child** or the **last chil...
Q305. What are the methods available on session storage?
The session storage provided methods for reading, writing and clearing the session data ```javascript // Save data to sessionStorage sessionStorage.setItem("key", "value"...
Q306. How do you conditionally render components?
In some cases you want to render different components depending on some state. JSX does not render `false` or `undefined`, so you can use conditional _short-circuiting_ t...
Q307. What is the purpose of <blockquote> tag?
The `` tag is used to indicate that a section of text is being quoted from another source. It is used to highlight a particularly important quote.
Q308. What is a storage event and its event handler?
The StorageEvent is an event that fires when a storage area has been changed in the context of another document. Whereas onstorage property is an EventHandler for process...
Q309. Why we need to be careful when spreading props on DOM elements?
When we _spread props_ we run into the risk of adding unknown HTML attributes, which is a bad practice. Instead we can use prop destructuring with `...rest` operator, so ...
Q310. What is <datalist> tag?
The `` tag is new addition to HTML5, and it is used to provide a list of pre-defined options for an input field. It allows us to create dropdown list of options.