nested , condition, ternary file ans few problems has been solved in those times

Author: shihabuddin-dev

B. Condition/bus-fare-calc.js

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+/*** problem-6
+
+Ticket fare Calculator
+    - Children (age < 10): free
+    - Students get a 50% discount
+    - Senior citizens (age >= 60) gets a 15% Discount
+    - Otherwise Regular ticket fare 800 tk
+*/
+
+let age = 20;
+let ticketPrice = 800;
+let isStudent = true;
+
+if (age < 10) {
+    console.log("Free");
+}
+else if (isStudent === true) {
+    // discount price 
+    studentDiscount = ticketPrice * 50 / 100;
+    console.log(studentDiscount);
+
+}
+else if (age >= 60) {
+    // discount price 
+    seniorCitizenDiscount = ticketPrice * 85 / 100;
+    console.log(seniorCitizenDiscount);
+}
+
+else {
+    console.log("Regular ticket fare 800 tk");
+}

B. Condition/nested-friends.js

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+/*** problem-4
+
+if you get more then 80 then inside your friend score. 
+    If your friend get more than 80. then go for a lunch. 
+    if your friend get below 80 but greater than or equal 60 then tell your friend, good luck next time. 
+    if your friend get less than 60 but more than or equal to 40 then, keep your friend's message unseen.
+    if your friend get less than 40, block your friend
+if you get less than 80 go to home and sleep and act sad
+
+Note: 
+use nested if-else-if-else
+*/
+let myMarks = 100;
+let friendMarks = 100;
+if (myMarks < 80) {
+    console.log("I sleep and feelings so sad");
+}
+else {
+    if (myMarks > 101 || friendMarks > 101) {
+        console.log("Invalid Marks");
+    }
+    else if (friendMarks > 80) {
+        console.log("We will go for lunch.");
+    }
+    else if (friendMarks < 80 && friendMarks >= 60) {
+        console.log("Good luck next time.");
+    }
+    else if (friendMarks < 60 && friendMarks >= 40) {
+        console.log("Keep your friend's message unseen.");
+    }
+    else {
+        console.log("I block friend");
+    }
+}

B. Condition/ternary-number.js

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+/*** problem-5
+
+you have two numbers in two variables, called: num1, num2
+
+now declare a variable called result. 
+if num1 is bigger than num2 then result will be double of num1. if not, then the value of the variable result will be the sum of num1 and num2.
+
+write a simple if-else. 
+
+also, write it using ternary operator.
+
+ */
+let num1 = 10;
+let num2 = 5;
+
+// simple if-else. 
+if (num1 > num2) {
+    console.log(num1 * 2);
+}
+else {
+    sum = num1 + num2;
+    console.log(sum);
+}
+
+// ternary 
+let numbers = num1 > num2 ? num1 * 2 : num1 + num2;
+console.log(numbers);