example again callback function

last-endcode · last-endcode · commit 6152b7183401 · 2020-10-14T15:29:18.000+07:00
diff --git a/34_example-callback.js b/34_example-callback.js
@@ -0,0 +1,35 @@
+// example again callback-function
+
+
+
+
+let add = function(a , b){
+    return a + b;
+}
+
+let multiply = function(a , b){
+    return a * b;
+}
+
+let calculation = function(num1, num2, callback){
+    return `The result from ${num1} and ${num2} is ${callback(num1, num2)}`;
+}
+
+console.log(calculation(10,10,add)); //20
+console.log(calculation(20,20,multiply)); //400
+
+/*original
+
+let calc = function(num1, num2, calcType){
+    // conditional
+    if(calcType === 'add'){
+        return num1 + num2;
+    }else if(calcType === 'multiply'){
+        return num1 * num2;
+    }
+}
+
+//access function
+console.log(calc(20,20,'add')); //40
+
+*/
