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@@ -0,0 +1,90 @@
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+<!DOCTYPE html>
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+<html>
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+<head>
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+ <meta charset="utf-8">
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+ <title>Замыкание</title>
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+</head>
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+<body>
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+
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+ <script>
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+
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+//---------makeProfileTimer
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+ /*function makeProfileTimer(){
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+ let time1=performance.now();
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+ return function(){
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+ let time2=performance.now();
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+ alert(time2-time1);
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+ }
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+ }
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+
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+ function fib(n){
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+ if(n==1||n==2){
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+ return 1;
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+ }else{
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+ return fib(n-1)+fib(n-2);
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+ }
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+ }
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+
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+ var timer=makeProfileTimer();
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+ alert(fib(10));
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+ timer();*/
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+
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+//-----------makeSaver
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+ /*function makeSaver(fn){
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+ let x=fn();
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+ return function(){
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+ return x;
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+ }
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+ }
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+
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+ var saver = makeSaver(Math.random);
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+ var value1 = saver();
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+ var value2 = saver();
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+ console.log(value1+" "+value2);
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+ console.log(value1 === value2);
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+
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+ var saver2 = makeSaver(() => console.log('saved function called') || [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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+ console.log(value3 === value4);*/
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+
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+//-----------Final Countdown
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+ /*(function count(){
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+ let x=5;
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+ let y=setInterval(function(){
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+ console.log(x);
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+ if(x==1){
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+ console.log('поехали');
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+ clearInterval(y);
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+ }
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+ x--;
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+ },1000)
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+ })();*/
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+
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+//------------myBind
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+ function myBind(fn,context,args){
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+ return function(){
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+ let args2=Object.assign(args,arguments);
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+ return fn.call(context,...args2);
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+ }
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+ }
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+
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+ var pow5 = myBind(Math.pow, Math, [undefined, 5]);
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+ var cube = myBind(Math.pow, Math, [undefined, 3]);
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+ console.log(pow5(2)); //32
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+ console.log(cube(3)); //27
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+
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+ var chessMin = myBind(Math.min, Math, [undefined, 4, undefined, 5,undefined, 8,undefined, 9]);
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+ console.log(chessMin(-1,-5,3,15)); //NaN ???
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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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+ console.log(someNumber);
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+
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+
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+ console.log(myBind((...params) => params.join(''), null, [undefined, 'b', undefined, undefined, 'e', 'f'])('a','c','d') === 'abcdef');
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+ </script>
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+</body>
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+</html>
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