Most of the time we have an object stored in our localStorage.
let car = {
brand: "Tesla",
model: "Model S"
};
localStorage.setItem("car", JSON.stringify(car));
https://i.sstatic.net/qWEkE.png
I am now eager to update the value of "model". How do I go about achieving this using Javascript?
(Although the code below isn't functional, it provides a glimpse of what I intend to accomplish)
localStorage.setItem(localStorage.getItem("car").model, "Model X");
First, you extract the JSON data, then parse it to update the object received from parsing. Next, you convert the updated object back into a string and save this result.
const spaceship = JSON.parse(localStorage.getItem("spaceship"));
spaceship.status = "newStatus";
localStorage.setItem("spaceship", JSON.stringify(spaceship));
An alternative method is to condense it into a single line using Object.assign, but this can make the code more challenging to understand and maintain:
localStorage.setItem("spaceship", JSON.stringify(Object.assign(JSON.parse(localStorage.getItem("spaceship")), {status: "newStatus"})));
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