Functions returning another function

Author: mike-diff

5-advanced-JS/starter/script.js

@@ -80,37 +80,63 @@
 // console.log(obj.city);
 
 //Passing functions as arguments
-var years = [1990, 1965, 1937, 2005, 1998];
+// var years = [1990, 1965, 1937, 2005, 1998];
 
-function arrayCalc(arr, fn){
-    var arrRes = [];
-    for(var i in years){
-        arrRes.push(fn(arr[i]));
-    }
-    return arrRes;
-}
+// function arrayCalc(arr, fn){
+//     var arrRes = [];
+//     for(var i in years){
+//         arrRes.push(fn(arr[i]));
+//     }
+//     return arrRes;
+// }
 
-function calculateAge(el){
-    return 2016 - el;
-}
+// function calculateAge(el){
+//     return 2016 - el;
+// }
 
-function isFullAge(el){
-    return el >= 18;
-}
+// function isFullAge(el){
+//     return el >= 18;
+// }
+
+// function maxHeartRate(el){
+//     if (el >= 18 && el <= 81) {
+//         return Math.round(206.9 - (0.67 * el));
+//     } else {
+//         return -1;
+//     }
+// }
 
-function maxHeartRate(el){
-    if (el >= 18 && el <= 81) {
-        return Math.round(206.9 - (0.67 * el));
+// var ages = arrayCalc(years, calculateAge);
+// console.log(ages);
+
+// var fullAges = arrayCalc(ages, isFullAge);
+// console.log(fullAges);
+
+// var rates = arrayCalc(ages, maxHeartRate);
+// console.log(rates);
+
+//Functions returning another function
+function interviewQuestion(job){
+    if (job === 'designer') {
+        return function(name) {
+            console.log(name, ', Can you please explain what UX design is?')
+        }
+    } else if(job === 'teacher') {
+        return function(name){
+            console.log('what subject do you teach', name);
+        }
     } else {
-        return -1;
+        return function(name) {
+            console.log('Hello', name, 'what do you do?');
+        }
     }
 }
 
-var ages = arrayCalc(years, calculateAge);
-console.log(ages);
+var teacherQuestion = interviewQuestion('teacher');
+var designerQuestion = interviewQuestion('designer');
+
+teacherQuestion('John');
+designerQuestion('Jane');
 
-var fullAges = arrayCalc(ages, isFullAge);
-console.log(fullAges);
+interviewQuestion('teacher')('Mark');
 
-var rates = arrayCalc(ages, maxHeartRate);
-console.log(rates);