I am struggling to restore and reuse a created array in HTML. I attempted using JSON, but it was not successful for me. In the code below, I am attempting to reload items that were previously stored in an array on another page. However, when I try to load them, it does not work. How can I resolve this issue? Do I need to include a header file for JSON? Thank you.
$( document ).ready(function() {
var count=sessionStorage.getItem('items');
)};
The feature of the sessionStorageproperty is that it grants access to a session Storage object specific to the current origin. The process involves both stringifying the object before storing it in the session, and parsing it when retrieving the data.
var user = {'name':'John'};
sessionStorage['user'] = JSON.stringify(user);
console.log(sessionStorage['user']);
var obj = JSON.parse(sessionStorage['user']);
console.log(Object.keys(obj).length);
To see an example, visit this JSFiddle link. Keep in mind that opening a page in a new tab or window will initiate a new session. Learn more about session storage here.
One method to retain data when using sessionStorage is by converting arrays to strings before storing them and then parsing them back into arrays when retrieving the information.
var numbers = [1, 2, 3];
sessionStorage.setItem("numbers", JSON.stringify(numbers));
var storedNumbers = JSON.parse(sessionStorage.getItem("numbers"));
console.log(storedNumbers);
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