JavaScript-Developer-I Exam Dumps | Which code statement correctly retrieves and returns an object from localStorage?

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Question 34/75

Which code statement correctly retrieves and returns an object from localStorage?

A. const retrieveFromLocalStorage = () =>{
return JSON.stringify(window.localStorage.getItem(storageKey));
}

B. const retrieveFromLocalStorage = (storageKey) =>{
return JSON.parse(window.localStorage.getItem(storageKey));
}

C. const retrieveFromLocalStorage = (storageKey) =>{
return window.localStorage.getItem(storageKey);
}

D. const retrieveFromLocalStorage = (storageKey) =>{
return window.localStorage[storageKey];
}

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ML - May 19, 2023

If somebody is asking why there is a JSON.parse, that's why:

"Storage objects are simple key-value stores, similar to objects, but they stay intact through page loads. The keys and the values are always strings (note that, as with objects, integer keys will be automatically converted to strings)" https://developer.mozilla.org/en-US/docs/Web/API/Web_Storage_API/Using_the_Web_Storage_API

Question 34/75

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