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@@ -0,0 +1,81 @@
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+// Замыкания
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+// makeProfileTimer---------------------------------------------------------------------------------------------------------------------;
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+function makeProfileTimer() {
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+ t1 = performance.now();
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+ confirm("Are you sure?");
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+ t2 = performance.now();
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+ return alert(
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+ "Call to confirm function took" + " " + (t2 - t1) + " " + "milliseconds"
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+ );
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+}
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+
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+var timer = makeProfileTimer();
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+
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+alert(timer());
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+
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+// makeSaver----------------------------------------------------------------------------------------------------------------------------;
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+
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+function makeSaver(callable) {
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+ let res,
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+ executed = !1;
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+ return function () {
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+ return executed ? res : ((executed = !0), (res = callable()));
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+ };
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+}
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+var saver = makeSaver(Math.random);
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+value1 = saver();
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+value2 = saver();
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+console.log(value1 === value2);
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+
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+var saver2 = makeSaver(
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+ () =>
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+ console.log("saved function called") ||
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+ [null, undefined, false, "", 0, Math.random()][Math.ceil(Math.random() * 6)]
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+);
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+var value3 = saver2();
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+var value4 = saver2();
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+
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+value3 === value4;
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+
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+let namePrompt = prompt.bind(window, "Как тебя зовут?");
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+let nameSaver = makeSaver(namePrompt);
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+alert(`Привет! Prompt еще не было!`);
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+alert(
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+ `Привет ${nameSaver()}. Только что запустился prompt, первый и последний раз`
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+);
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+alert(`Слушай, ${nameSaver()}, го пить пиво. Ведь prompt был только один раз`);
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+
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+// Final Countdown----------------------------------------------------------------------------------------------------------------------;
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+
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+const messages = [5, 4, 3, 2, 1, "Go"];
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+
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+for (let i = 0; i < messages.length; i++) {
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+ setTimeout(function () {
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+ console.log(messages[i]);
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+ }, 1000 * i);
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+}
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+
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+// myBind-------------------------------------------------------------------------------------------------------------------------------;
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+
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+function myBind(func, context, bindArgs) {
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+ function wrapper() {
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+ var args = Object.assign(bindArgs, arguments);
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+ return func.apply(context, args);
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+ }
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+
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+ return wrapper;
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+}
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+
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+var pow5 = myBind(Math.pow, Math, [undefined, 5]);
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+
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+var cube = myBind(Math.pow, Math, [undefined, 3]);
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+
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+alert(pow5(2));
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+
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+alert(cube(3));
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+
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+var zeroPrompt = myBind(prompt, window, [undefined, "0"]);
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+
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+var someNumber = zeroPrompt("Введите число");
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+
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+alert(someNumber);
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OleksiiL