1 year ago · 0cb926db58
--- a/closures/hw#12.js
+++ b/closures/hw#12.js
@@ -0,0 +1,121 @@
 
				+// makeProfileTimer =====================================================================================
			
 
				+
			
 
				+
			
 
				+function makeProfileTimer(){
			
 
				+    const start = performance.now()
			
 
				+    return () => {
			
 
				+        const finish = performance.now()
			
 
				+        return finish - start
			
 
				+    }
			
 
				+}
			
 
				+
			
 
				+const timer = makeProfileTimer()
			
 
				+console.log('Замеряем время работы этого console.log')
			
 
				+console.log(`Время работы console.log = ${timer()} мкс`)
			
 
				+
			
 
				+
			
 
				+// makeSaver =====================================================================================
			
 
				+
			
 
				+
			
 
				+function makeSaver (func) {
			
 
				+    let funcResult
			
 
				+    let stopFunc = true
			
 
				+
			
 
				+    return () => {
			
 
				+
			
 
				+        if (stopFunc) {
			
 
				+            stopFunc = false
			
 
				+            funcResult = func()
			
 
				+        } 
			
 
				+        console.log(funcResult)
			
 
				+        return funcResult
			
 
				+    }
			
 
				+}
			
 
				+
			
 
				+const saver = makeSaver(Math.random)
			
 
				+const value1 = saver()
			
 
				+const value2 = saver()
			
 
				+
			
 
				+console.log(value1 === value2)
			
 
				+
			
 
				+const saver2 = makeSaver(() => console.log('saved function called') || [null, undefined, false, '', 0, Math.random()][Math.ceil(Math.random()*6)])
			
 
				+const value3 = saver2()
			
 
				+const value4 = saver2()
			
 
				+
			
 
				+console.log(value3 === value4)
			
 
				+
			
 
				+const namePrompt = prompt.bind(window, 'Как тебя зовут?')
			
 
				+const nameSaver = makeSaver(namePrompt)
			
 
				+alert(`Привет! Prompt еще не было!`)
			
 
				+alert(`Привет ${nameSaver()}. Только что запустился prompt, первый и последний раз`)
			
 
				+alert(`Слушай, ${nameSaver()}, го пить пиво. Ведь prompt был только один раз`)
			
 
				+
			
 
				+
			
 
				+// myBind =====================================================================================
			
 
				+
			
 
				+
			
 
				+function myBind (func, funcThis, arr) {
			
 
				+    let result
			
 
				+    return function (...passParam) {
			
 
				+        for (let i =0; i < passParam.length; i ++) {
			
 
				+            for (let j = 0; j < arr.length; j ++) {
			
 
				+                if (arr[j] === undefined){
			
 
				+                    arr[j] = passParam[i]
			
 
				+                    passParam.shift()
			
 
				+                }
			
 
				+            }
			
 
				+        }
			
 
				+        result = func.call(funcThis,...arr)
			
 
				+        return console.log(result)
			
 
				+    }
			
 
				+}
			
 
				+
			
 
				+
			
 
				+const pow5 = myBind(Math.pow, Math, [, 5])
			
 
				+pow5(2)
			
 
				+
			
 
				+const cube = myBind(Math.pow, Math, [, 3])
			
 
				+cube(3)
			
 
				+
			
 
				+
			
 
				+const chessMin = myBind(Math.min, Math, [, 4, , 5,, 8,, 9])
			
 
				+chessMin(-1,-5,3,15)
			
 
				+
			
 
				+const zeroPrompt = myBind(prompt, window, [undefined, "0"])
			
 
				+const someNumber = zeroPrompt("Введите число")
			
 
				+
			
 
				+const bindedJoiner = myBind((...params) => params.join(''), null, [, 'b', , , 'e', 'f'])
			
 
				+bindedJoiner('a','c','d') === 'abcdef'
			
 
				+bindedJoiner('1','2','3') === '1b23ef'
			
 
				+
			
 
				+
			
 
				+// checkResult =====================================================================================
			
 
				+
			
 
				+
			
 
				+function checkResult(original, validator){
			
 
				+
			
 
				+    function wrapper(...params){
			
 
				+        const originalResult = original.call(this,...params)
			
 
				+        const checkValid = validator(originalResult)
			
 
				+
			
 
				+        if (checkValid === true){
			
 
				+            return originalResult
			
 
				+        }
			
 
				+        else {
			
 
				+            return wrapper(...params)
			
 
				+        }
			
 
				+    }
			
 
				+    return wrapper
			
 
				+}
			
 
				+
			
 
				+function me () {
			
 
				+    let meObj = {}
			
 
				+    meObj.name = prompt('Введите имя')
			
 
				+    meObj.surname = prompt('Введите фамилию')
			
 
				+    meObj.fatherName = prompt('Введите отчество')
			
 
				+    return meObj
			
 
				+}
			
 
				+
			
 
				+const randomHigh = checkResult(Math.random, x => x>=0.5 && x<=1)
			
 
				+const alwaysSayYes = checkResult(confirm, x => x === true)
			
 
				+const respectMe = checkResult(me, x => Object.values(x).includes('') ? false : true)
			
--- a/closures/index.html
+++ b/closures/index.html
@@ -0,0 +1,12 @@
 
				+<!DOCTYPE html>
			
 
				+<html lang="en">
			
 
				+<head>
			
 
				+    <meta charset="UTF-8">
			
 
				+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
			
 
				+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
			
 
				+    <title>Document</title>
			
 
				+</head>
			
 
				+<body>
			
 
				+    <script src="main.js"></script>
			
 
				+</body>
			
 
				+</html>