✅ – Liil' Boo – 08-41 Aug 10

Hey Would something bad happen (or nothing), if I try to do

JSON.parse(thing)

JSON.parse(thing)

and 'thing' is not an object or array ? Or does that change nothing ?

28 Replies

liil'boo•2y ago

!title <JSON.parse question>

Unknown User•2y ago

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liil'boo•2y ago

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse

JSON.parse() - JavaScript | MDN

The JSON.parse() method parses a JSON string, constructing the JavaScript value or object described by the string. An optional reviver function can be provided to perform a transformation on the resulting object before it is returned.

Unknown User•2y ago

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liil'boo•2y ago

Could be anything else What i'm really trying to is

JSON.parse(window.LocalStorage.getItem('key')

JSON.parse(window.LocalStorage.getItem('key')

And I want to be sure how to catch error And if it always returns a string Documentation didn't help me figure it out Or I didn't understand

Unknown User•2y ago

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liil'boo•2y ago

Wait, what If I stringify everything before set to Local Storage ? Then I would always deal with strings, right ? As such

window.localStorage.setItem('key', JSON.stringy(value)

window.localStorage.setItem('key', JSON.stringy(value)

Unknown User•2y ago

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liil'boo•2y ago

It's purely theoritical, I'm not coding (Sorry I should have mentioned it) Well, thank you for your time I go with the approach of stringify-ing everything

marz•2y ago

either way localstorage can only store strings

Unknown User•2y ago

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liil'boo•2y ago

I guess so, But documentation doesn't say what happens if I try

localStorage.setItem('key', true)

localStorage.setItem('key', true)

Would it become the string 'true' ? Or throw an Error

Unknown User•2y ago

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liil'boo•2y ago

As a string ? So localStorage can store booleans ? 😮

Eva•2y ago

It'll stringify it yes

Unknown User•2y ago

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liil'boo•2y ago

Thanks for confirmation

Eva•2y ago

As if you set .setItem('... ', {}); it'll just stringify it into [object Object]

liil'boo•2y ago

window.localStorage.setItem('key', JSON.stringy(value)

window.localStorage.setItem('key', JSON.stringy(value)

I'll stick to this approach, stringying everything, I'll think about accuracy* later Thanks timo, thanks Eva

Unknown User•2y ago

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liil'boo•2y ago

I thought JSON.stringify would be harmless on things that are already a string

Unknown User•2y ago

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liil'boo•2y ago

That's bad?

Unknown User•2y ago

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liil'boo•2y ago

Well, better safe than sorry I'll go with your advice, dear stranger Thanks again

reactibot•2y ago

This question has an answer! Thank you for helping 😄 If you have a followup question, you may want to reply to this thread so other members know they're related. https://discord.com/channels/102860784329052160/565213527673929729/1006844848428568587

liil'boo•2y ago

!close

reactibot•2y ago

This thread hasn’t had any activity in 12 hours, so it’s now locked. Threads are closed automatically after 12 hours. If you have a followup question, you may want to reply to this thread so other members know they're related. https://discord.com/channels/102860784329052160/565213527673929729/1006844848428568587