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When I assign integer value to localStorage item
localStorage.setItem('a',1) and check its type
typeof(localStorage.a) "string" it returns string, I can typecast it to int for my use
parseInt(localStorage.a) My question is it possible to store integer value inside localStorage as I can do for Javascript objects without typecasting?
a={}; a.number=1; typeof(a.number) "number" 
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In summary, we can store JavaScript objects in localStorage by first converting them to strings with the JSON. stringify method, then back to objects with the JSON. parse method.
To get items from localStorage, use the getItem() method. getItem() allows you to access the data stored in the browser's localStorage object.
Use localStorage. setObj(key, value) to save an array or object and localStorage. getObj(key) to retrieve it. The same methods work with the sessionStorage object.
My question is it possible to store integer value inside localStorage as I can do for Javascript objects without typecasting?
No.
Storage objects are simple key-value stores, similar to objects, but they stay intact through page loads. The keys can be strings or integers, but the values are always strings. [source]
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Actually you can, if we agree that parsing is not the same as typecasting :
let val = 42; localStorage.answer = JSON.stringify(val); let saved = JSON.parse(localStorage.answer); console.log( saved === val ); // true Fiddle since over-protected stacksnippets don't allow localStorage.
For simplicity, you should anyway always stringify to JSON what you are saving in localStorage, this way you don't have to think about what you are saving / retrieving, and you will avoid "[object Object]" being saved.
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