lesson-10

iamshaunjp · iamshaunjp · commit c0c3d22789c1 · 2020-03-16T18:23:17.000Z
diff --git a/public/sandbox.js b/public/sandbox.js
@@ -1,19 +1,22 @@
 "use strict";
-// let greet: Function = () => {
-//   console.log('hello, world');
-// }
-// greet = 'hello';
-// greet = () => {
-//   console.log('hello, again');
-// }
-var add = function (a, b, c /*?*/) {
-    if (c === void 0) { c /*?*/ = 10; }
-    console.log(a + b);
-    console.log(c);
+// let greet: Function;
+// example 1
+var greet;
+greet = function (name, greeting) {
+    console.log(name + " says " + greeting);
 };
-add(5, 10, 'ninja');
-var minus = function (a, b) {
-    return a + b;
+// example 2
+var calc;
+calc = function (numOne, numTwo, action) {
+    if (action === 'add') {
+        return numOne + numTwo;
+    }
+    else {
+        return numOne - numTwo;
+    }
+};
+// example 3
+var logDetails;
+logDetails = function (ninja) {
+    console.log(ninja.name + " is " + ninja.age + " years old");
 };
-var result = minus(10, 7);
-console.log(result);
diff --git a/src/sandbox.ts b/src/sandbox.ts
@@ -1,23 +1,26 @@
-// let greet: Function = () => {
-//   console.log('hello, world');
-// }
+// let greet: Function;
 
-// greet = 'hello';
+// example 1
+let greet: (a: string, b: string) => void;
 
-// greet = () => {
-//   console.log('hello, again');
-// }
-
-const add = (a: number, b: number, c/*?*/: number | string = 10): void => {
-  console.log(a + b);
-  console.log(c);
+greet = (name: string, greeting: string) => {
+  console.log(`${name} says ${greeting}`);
 }
 
-add(5, 10, 'ninja');
+// example 2
+let calc: (a: number, b: number, c: string) => number;
 
-const minus = (a: number, b: number): number => {
-  return a + b;
+calc = (numOne: number, numTwo: number, action: string) => {
+  if (action === 'add') {
+    return numOne + numTwo;
+  } else {
+    return numOne - numTwo;
+  }
 }
 
-let result = minus(10,7);
-console.log(result);
+// example 3
+let logDetails: (obj: {name: string, age: number}) => void;
+
+logDetails = (ninja: {name: string, age: number}) => {
+  console.log(`${ninja.name} is ${ninja.age} years old`);
+}
