hw6 done

hw6/script.js

@@ -1,37 +1,124 @@
-console.log('hello')
 // a
 function a(msg) {
    return alert(msg)
 }
-//a('hello')
 
 // cube 
 function cube(num) {
     return num**3
 }
-console.log(cube(3))
 
 //avg2
 function avg2(num1, num2) {
     return (num1 + num2) / 2
 }
-console.log(avg2(1,2))
-console.log(avg2(10, 5))
 
 //sum3
 function sum3(num1, num2, num3=0) {
     return num1 + num2 + num3
 }
 
-console.log(sum3(1,2))
-console.log(sum3(1,2,3))
-console.log(sum3(5,10,100500))
-
 //intRandom
 function intRandom(min, max) {
-    min = Math.ceil(min)
-    max = Math.floor(max)
+    let temp = min
+    min = isNaN(max)? 0 : Math.ceil(min)
+    max = Math.floor(max) || temp
+
     res = (Math.random() * (max - min) + min) <= 0? Math.ceil(Math.random() * (max - min) + min) : Math.floor(Math.random() * (max+1 - min) + min)
     return res === -0? 0 : res
 }
-console.log(intRandom(-4, 5))
+
+//greetAll
+function greetAll() {
+    let greet = 'Hello '
+    for(let i = 0; i < arguments.length; i++) {
+        greet += i === arguments.length - 1? `${arguments[i]}` : `${arguments[i]}, `
+    }
+    return alert(greet)
+}
+
+//sum
+function sum() {
+    let sum = 0
+    for(let i = 0; i < arguments.length; i++) {
+        sum += arguments[i]
+    }
+    return sum
+}
+
+//Union
+function aSample() {
+    a('HELLO!')
+}
+
+function cubeSample() {
+    return cube(5)
+}
+
+function avg2Sample() {
+    return avg2(10, 5)
+}
+
+function sum3Sample() {
+    return sum3(5,10,100500)
+}
+
+function intRandomSample() {
+    return intRandom(15, 27)
+}
+
+function greetAllSample() {
+    greetAll('Mihail', 'Bogdan', 'Denis')
+}
+
+function sumSample() {
+    return sum(2, 3, 4, 5, 10)
+}
+
+let sample = prompt('Введите название задания','') || ''
+switch (sample.toLowerCase()){
+    case "a": 
+        aSample()
+        break;
+
+    case "cube":
+        console.log('cube: ',cubeSample())
+        break;
+
+    case "avg2":
+        console.log('avg2: ',avg2Sample())
+        break;
+
+    case "sum3":
+        console.log('sum3: ',sum3Sample())
+        break;
+
+    case "intrandom":
+        console.log('intRandom: ',intRandomSample())
+        break;
+
+    case "greetall":
+        greetAllSample()
+        break;
+
+    case "sum":
+        console.log('sum: ',sumSample())
+        break;
+
+    default:
+        alert('совпадений не найдено.')
+        break;
+}
+
+let functionSamples = {
+    a: aSample,
+    cube: cubeSample,
+    avg2: avg2Sample,
+    sum3: sum3Sample,
+    intrandom: intRandomSample,
+    greetall: greetAll,
+    sum: sumSample
+}
+
+alert('STARTING FROM OBJECT')
+console.log('started from sample object:', functionSamples[sample]())