JavaScript: localstorage with expire time value
usage:
//new instance
var storage = new LocalStorageAdapter();
//set value
storage.set('key_no_cache', 'test');
//get value
storage.get('key_no_cache');
/*********************************
get value with cache
key = my key
time = milliseconds cache life time
callback = function
return = value
*/
callback = function () {
return "hello from callback";
}
var data = storage.tryGet('key1', 5000, callback)
console.log(`[tryGet]key1 = {data}`);
/*********************************
get value with cache
key = my key
time = milliseconds cache life time
callback = function
return = promise
*/
callback = function () {
return "hello from callback";
}
storage.tryGetAsync('key2', 5000, callback)
.then((data) => {
console.log(`[tryGetAsync+callback]key2 = {data}`);
});
/*********************************
get value with cache
key = my key
time = milliseconds cache life time
callback = function or promise
return = promise
*/
var promise = new Promise(function (resolve, reject) {
setTimeout(() => {
resolve("hello from promise");
}, 1000);
});
storage.tryGetAsync('key3', 5000, promise)
.then((data) => {
console.log(`[tryGetAsync+promise]key3 = {data}`);
});
/*********************************
promise inside function = to prevent execution
*/
var functionWithPromise = function () {
return new Promise(function (resolve, reject) {
setTimeout(() => {
resolve("hello from functionWithPromise");
}, 1000);
});
};
storage.tryGetAsync('key4', 5000, functionWithPromise)
.then((data) => {
console.log(`[tryGetAsync+function+promise]key4 = {data}`);
});License
MIT