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@@ -1,4 +1,7 @@
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-// graphql task
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+// graphql tasks
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+
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+// first
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+
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// async function gql(url, query, variables) {
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// let response = await fetch(url, {
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// method: "POST",
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@@ -68,6 +71,39 @@
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// }
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// }
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+// second
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+
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+// const getGQL = (url) => (query, variables) =>
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+// fetch(url, {
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+// method: "POST",
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+// headers: {
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+// "Content-Type": "application/json",
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+// },
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+// body: JSON.stringify({ query, variables }),
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+// })
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+// .then((res) => res.json())
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+// .then((data) => {
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+// try {
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+// return data.data.login;
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+// } catch (e) {
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+// throw new Error("Something wrong");
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+// }
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+// });
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+
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+// const gql = getGQL("http://shop-roles.asmer.fs.a-level.com.ua/graphql");
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+// (async function () {
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+// console.log(
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+// await gql(
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+// `
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+// query log($login:String, $password:String){
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+// login(login:$login, password:$password)
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+// }
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+// `,
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+// { login: "tst", password: "123" }
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+// )
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+// );
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+// })();
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+
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// Async/Await Homework 2
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// Светофор
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@@ -175,10 +211,15 @@
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// console.log(`event ${e.type} happens`, e)
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// );
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-// PedestrianTrafficLight (unfinished)
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+// PedestrianTrafficLight
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-// function simpleDelay(ms) {
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-// new Promise((ok) => setTimeout(() => ok(ms), ms));
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+// function domEventPromisePedestrian(element, eventName) {
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+// return new Promise((resolve) => {
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+// element.addEventListener(eventName, (event) => {
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+// console.log("Resolve");
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+// return resolve(event);
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+// });
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+// });
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// }
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// function delay(ms, el) {
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@@ -202,14 +243,21 @@
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// pedestrianBtn.id = "pedestrianBtn";
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// pedestrianBtn.innerText = "Turn on green light";
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// el.appendChild(pedestrianBtn);
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-// pedestrianBtn.addEventListener("click", (event) => {
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-// (async function greenLight() {
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-// if (+timer.innerText > 3) {
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-// await simpleDelay(2000);
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-// console.log("After delay");
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+// if (+timer.innerText > 4) {
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+// (async function () {
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+// async function simpleDelay(ms) {
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+// console.log(`Delay: ${ms / 1000} seconds`);
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+// return new Promise((ok) => setTimeout(() => ok(ms), ms));
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// }
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+// await simpleDelay(2000);
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+// await Promise.race([
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+// domEventPromisePedestrian(pedestrianBtn, "click").then(() =>
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+// delay(0)
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+// ),
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+// simpleDelay(ms),
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+// ]);
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// })();
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-// });
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+// }
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// }
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// if (
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// infoBlock.classList.contains("green") &&
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@@ -245,10 +293,51 @@
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// container.appendChild(red);
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// el.appendChild(container);
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// await delay(rms, el);
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+
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// container.classList.remove("red");
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// container.removeChild(container.firstChild);
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// }
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// }
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// trafficLightPedestrian(3000, 10000, pedestrianLights);
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-// speedtest (temporarily not done)
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+// speedtest
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+
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+// const delay = (ms) => new Promise((ok) => setTimeout(() => ok(ms), ms));
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+
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+// async function speedtest(getPromise, count = 1, parallel = 1) {
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+// let duration;
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+// let querySpeed;
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+// let queryDuration;
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+// let parallelSpeed;
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+// let parallelDuration;
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+// let start = performance.now();
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+// let queries = [];
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+
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+// await (async () => {
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+// let getPromises = [];
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+// for (let i = 0; i < count; i++) {
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+// for (let j = 0; j < parallel; j++) {
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+// getPromises.push(getPromise);
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+// }
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+// let query = performance.now();
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+// await Promise.all([...getPromises.map((el) => el())]);
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+// queries.push(performance.now() - query);
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+// }
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+// })();
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+
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+// duration = performance.now() - start;
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+// querySpeed = (count * parallel) / 100000;
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+// queryDuration = queries.reduce((a, b) => a + b) / queries.length;
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+// parallelSpeed = duration / (count * parallel) / 10000;
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+// parallelDuration = duration / (count * parallel);
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+
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+// return {
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+// duration, //общая длительность работы цикла
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+// querySpeed, //реальная средняя скорость запроса
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+// queryDuration, //реальное среднее время запроса
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+// parallelSpeed, //скорость в запросах в миллисекунду
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+// parallelDuration, //среднее время обработки запроса параллельно
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+// };
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+// }
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+
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+// speedtest(() => delay(1000), 5, 5).then((result) => console.log(result));
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