Use and test localStorage

localStorage.mini.js

N = 'Use and test localStorage'

if ('test')
console.clear(),
localStorage.length ?
    GET(N).ok ||
    console.warn(N, 'not empty'):
    SET(N, { ok: true });


_LIST();


if ('mop')
console.assert(GET(N).ok),
localStorage.removeItem(N),
console.assert(!GET(N)),
console.info('Tests ok');



function SET(key, value){
    return localStorage.setItem(key, JSON.stringify(value) ), GET(key) }
function GET(key, reviver){
    return JSON.parse(localStorage.getItem(key), reviver) }
function _LIST(){
    Object.keys(localStorage)
        .forEach(key => console.log(key, GET(key))) }


//
new Date