lbry-desktop/ui/js/utils.js

/**
 * Thin wrapper around localStorage.getItem(). Parses JSON and returns undefined if the value
 * is not set yet.
 */
export function getLocal(key, fallback = undefined) {
	const itemRaw = localStorage.getItem(key);
	return itemRaw === null ? fallback : JSON.parse(itemRaw);
}

/**
 * Thin wrapper around localStorage.setItem(). Converts value to JSON.
 */
export function setLocal(key, value) {
	localStorage.setItem(key, JSON.stringify(value));
}

/**
 * Thin wrapper around localStorage.getItem(). Parses JSON and returns undefined if the value
 * is not set yet.
 */
export function getSession(key, fallback = undefined) {
	const itemRaw = sessionStorage.getItem(key);
	return itemRaw === null ? fallback : JSON.parse(itemRaw);
}

/**
 * Thin wrapper around localStorage.setItem(). Converts value to JSON.
 */
export function setSession(key, value) {
	sessionStorage.setItem(key, JSON.stringify(value));
}