Completed assignment tasks and modifications to code

Author: gitpuleo

explicit-and-implicit-conversion-in-javascript.js

@@ -18,15 +18,40 @@ Use console.log() to clearly show the before-and-after type conversions.
 
 */
 
-
+/* "5" here in the first chunk of code is a string, however implicit type conversion because
+of the subtraction operator coerces it into a number, preserving the logic of the 
+code when it produces a result of 3. No error. 
+*/
 let result = "5" - 2;
 console.log("The result is: " + result);
 
+/* Perhaps there is a logic error here? In that even though the boolean is false, isValid is true
+and so "This is valid" prints. Perhaps you should inset a not operator, !, then? Otherwise I cannot
+see what is wrong with this code which runs just fine. 
+*/
 let isValid = Boolean("false");
 if (isValid) {
     console.log("This is valid!");
 }
 
+/* In this final bit of code, because of the + operator the age vareiable as a string coerces the
+number 5 into being a string as well, leading to the unexpected result of 255, an unlikely age. 
+By forcing age to a number with the Number() function, the code functions as expected, producing 30.
+*/
 let age = "25";
-let totalAge = age + 5;
+let totalAge = Number(age) + 5;
 console.log("Total Age: " + totalAge);
+
+//Task 2
+
+/* The Number() fucntion explicitly converts the ageInYears string to a number before 1 is added.
+*/
+let ageInYears = "31";
+let ageAtBirthday = Number(ageInYears) + 1;
+console.log("Age on birthday is " + ageAtBirthday);
+
+/* The division operator implicitly coerces the string to a number.
+*/
+let humanAge = "70"
+let ageInDogYears = humanAge / 7
+console.log("I am 70 years old, so my age in dog years is " + ageInDogYears + ".");