zubeda-week3(extra+mandatory)home-work

.github/pull_request_template.md

@@ -1,10 +1,8 @@
 # Your Details
 
-Your Name:
-Your City:
+Your Name:zubeda
+Your City:birminghan
 Your Slack Name:
-
 # Homework Details
-
 Module:
 Week:

week-1/2-mandatory/1-syntax-errors.js

@@ -1,17 +1,23 @@
 // There are syntax errors in this code - can you fix it to pass the tests?
 
-function addNumbers(a b c) {
+function addNumbers(a, b, c) {
     return a + b + c;
 }
 
-function introduceMe(name, age)
-return "Hello, my name is " + name "and I am " age + "years old";
+function introduceMe(name, age){
+return "Hello, my name is " + name + " and I am " + age + " years old";
+}
+
+function getRemainder(a, b) {
+
 
 function getTotal(a, b) {
     total = a ++ b;
 
+
     // Use string interpolation here
-    return "The total is %{total}"
+    let Reminder=a%b;
+    return `The remainder is ${a%b}`;
 }
 
 /* ======= TESTS - DO NOT MODIFY =====
@@ -24,6 +30,10 @@ const util = require('util');
 
 function test(test_name, actual, expected) {
     let status;
+    if (expr) {
+        status = "PASSED";
+    } else {
+        status = "FAILED";
     if (actual === expected) {
         status = "PASSED";
     } else {
@@ -33,6 +43,10 @@ function test(test_name, actual, expected) {
     console.log(`${test_name}: ${status}`);
 }
 
+test("fixed addNumbers function - case 1", addNumbers(3,4,6) === 13);
+test("fixed introduceMe function", introduceMe("Sonjide",27) === "Hello, my name is Sonjide and I am 27 years old");
+test("fixed getRemainder function", getRemainder(23,5) === "The remainder is 3");
+=======
 test("fixed addNumbers function - case 1", addNumbers(3, 4, 6), 13);
 test("fixed introduceMe function", introduceMe("Sonjide", 27), "Hello, my name is Sonjide and I am 27 years old");
 test("fixed getTotal function", getTotal(23, 5), "The total is 28");

week-1/2-mandatory/2-logic-error.js

@@ -1,16 +1,16 @@
 // The syntax for this function is valid but it has an error, find it and fix it.
 
 function trimWord(word) {
-  return wordtrim();
+  return word.trim();
 }
 
 function getWordLength(word) {
-  return "word".length()
+  return word.length;
 }
 
 function multiply(a, b, c) {
-  a * b * c;
-  return;
+
+  return a * b * c;
 }
 
 /* ======= TESTS - DO NOT MODIFY =====
@@ -19,6 +19,20 @@ There are some Tests in this file that will help you work out if your code is wo
 To run these tests type `node 2-logic-error` into your terminal
 */
 
+function test(test_name, expr) {
+  let status;
+  if (expr) {
+      status = "PASSED";
+  } else {
+      status = "FAILED";
+  }
+
+  console.log(`${test_name}: ${status}`);
+}
+
+test("fixed trimWord function", trimWord("  CodeYourFuture ") === "CodeYourFuture");
+test("fixed wordLength function", getWordLength("A wild sentence appeared!") === 25);
+test("fixed multiply function", multiply(2,3,6) === 36);
 const util = require('util');
 
 function test(test_name, actual, expected) {

week-1/2-mandatory/3-function-output.js

@@ -1,14 +1,17 @@
 // Add comments to explain what this function does. You're meant to use Google!
-function getNumber() {
+function getNumber() {//MAth.random()*10 return random numbers between 1 and 10
   return Math.random() * 10;
 }
 
 // Add comments to explain what this function does. You're meant to use Google!
-function s(w1, w2) {
+function s(w1, w2) {//w1.concat(w2) return a new string containing the text of joined string
   return w1.concat(w2);
 }
 
 function concatenate(firstWord, secondWord, thirdWord) {
+
+  console.log(firstWord.concat(" ").concat(secondWord).concat(" ").concat(thirdWord));
+  return firstWord.concat(" ").concat(secondWord).concat(" ").concat(thirdWord);
   // Write the body of this function to concatenate three words together.
   // Look at the test case below to understand what this function is expected to return.
 }
@@ -36,11 +39,13 @@ test(
   concatenate('code', 'your', 'future'),
   "code your future"
 );
+
 test(
   "concatenate function - case 2 works",
   concatenate('I', 'like', 'pizza'),
   "I like pizza"
 );
+
 test(
   "concatenate function - case 3 works",
   concatenate('I', 'am', 13),

week-1/2-mandatory/4-tax.js

@@ -5,7 +5,11 @@
   Sales tax is 20% of the price of the product
 */
 
-function calculateSalesTax() {}
+function calculateSalesTax(priceOfProduct) {
+
+  let salesTax=(20/100*priceOfProduct)+priceOfProduct;
+  return salesTax;
+}
 
 /*
   CURRENCY FORMATTING
@@ -17,6 +21,12 @@ function calculateSalesTax() {}
   Remember that the prices must include the sales tax (hint: you already wrote a function for this!)
 */
 
+function formatCurrency(a) {
+var price=calculateSalesTax(a);
+
+return `£${price.toFixed(2)}`;
+}
+=======
 function addTaxAndFormatCurrency() {}
 
 /* ======= TESTS - DO NOT MODIFY =====

week-1/3-extra/1-currency-conversion.js

@@ -5,7 +5,10 @@
   Write a function that converts a price to USD (exchange rate is 1.4 $ to £)
 */
 
-function convertToUSD() {}
+function convertToUSD(price) {
+ let convertToUs=1.4*price;;
+  return convertToUs;
+}
 
 /*
   CURRENCY FORMATTING
@@ -15,7 +18,12 @@ function convertToUSD() {}
   They have also decided that they should add a 1% fee to all foreign transactions, which means you only convert 99% of the £ to BRL.
 */
 
-function convertToBRL() {}
+function convertToBRL(price) {
+    let percentOfPrice=(1/100)*(5.7*price);
+    let convertToBrazil=5.7*price;
+    let total=percentOfPrice+convertToBrazil;
+    return total;
+}
 
 /* ======= TESTS - DO NOT MODIFY ===== 
 There are some Tests in this file that will help you work out if your code is working.

week-1/3-extra/2-piping.js

@@ -16,33 +16,52 @@
   the final result to the variable goodCode
 */
 
-function add() {
+function add(a,b) {
+  return a+b;
 
 }
 
-function multiply() {
-
+function multiply(a,b) {
+  return a*b;
 }
 
-function format() {
-
+function format(a) {
+return `£${a}`;
 }
 
-const startingValue = 2
+const startingValue = 2;
 
 // Why can this code be seen as bad practice? Comment your answer.
-let badCode = 
+let badCode = format((startingValue+10)*2);//no use of variables
 
 /* BETTER PRACTICE */
 
-let goodCode = 
+let goodCode = badCode;//fisrt put result in variable and the assign to 2nd variable
 
 /* ======= TESTS - DO NOT MODIFY ===== 
 There are some Tests in this file that will help you work out if your code is working.
 
 To run these tests type `node 2-piping.js` into your terminal
 */
 
+function test(test_name, expr) {
+  let status;
+  if (expr) {
+      status = "PASSED";
+  } else {
+      status = "FAILED";
+  }
+
+  console.log(`${test_name}: ${status}`);
+}
+
+test('add function - case 1 works', add(1,3) === 4);
+test('add function - case 2 works', add(2.4,5.3) === 7.7);
+test('multiply function works', multiply(2,3) === 6);
+test('format function works', format(16) === "£16");
+test('badCode variable correctly assigned', badCode === "£24");
+test('goodCode variable correctly assigned', goodCode === "£24");
+=======
 const util = require('util');
 
 function test(test_name, actual, expected) {

week-1/3-extra/3-magic-8-ball.js

@@ -35,7 +35,7 @@ Better not tell you now.
 Cannot predict now.
 Concentrate and ask again.
 
-## Very negative
+## Negative
 Don't count on it.
 My reply is no.
 My sources say no.
@@ -46,13 +46,74 @@ Very doubtful.
 // This should log "The ball has shaken!"
 // and return the answer.
 function shakeBall() {
+
+ logged="The ball has shaken!";
+ answers=["Very positive","Positive","Negative","Negative"]
+//
+ //answers[Math.floor(Math.random()*answers.length)]
+//console.log(Math.floor(Math.random()*4));
+ answer=Math.floor(Math.random()*answers.length)
+ return answer.toString();
+}
+//answers[Math.floor(Math.random()*answers.length)]
+// The answer should come from shaking the ball
+//let answer;
 }
 
 // This function should say whether the answer it is given is
 // - very positive
 // - positive
 // - negative
 // - very negative
+function checkAnswer() {
+ // console.log("ans from main"+answer);
+  let subAns;
+
+//let no=shakeBall();
+//console.log("answer again from checkS"+no);
+if(answer==0){
+   // ");
+    subAns=["It is certain."
+      ,"It is decidedly so."
+      ,"Without a doubt"
+      ,"Yes - definitely."
+      ,"You may rely on it."];
+    console.log("very positive");
+    console.log(subAns[Math.floor(Math.random()*subAns.length)]);
+    return "very positive";
+}
+if(answer==1){
+  subAns=["As I see it, yes."
+    ,"Most likely."
+    ,"Outlook good."
+    ,"Yes."
+    ,"Signs point to yes."];
+  console.log("positive");
+  console.log(subAns[Math.floor(Math.random()*subAns.length)]);
+  return "positive";
+}
+if(answer==2){
+  subAns=["Reply hazy, try again."
+    ,"Ask again later."
+    ,"Better not tell you now."
+    ,"Cannot predict now."
+    ,"Concentrate and ask again."];
+  console.log("negative");
+  console.log(subAns[Math.floor(Math.random()*subAns.length)]);
+  return "negative";
+}
+if(answer==3){
+  subAns=["Don't count on it."
+  ,"My reply is no."
+  ,"My sources say no."
+  ,"Outlook not so good."
+  ,"Very doubtful."];
+  console.log("very nagative");
+  console.log(subAns[Math.floor(Math.random()*subAns.length)]);
+  return "very negative";
+}
+
+=======
 // This function should expect to be called with any value which was returned by the shakeBall function.
 function checkAnswer(answer) {
 }
@@ -89,6 +150,9 @@ function testAll() {
     `shakeBall logs "The ball has shaken!"`,
     logged === "The ball has shaken!"
   );
+
+  test(`shakeBall returns an string answer"`, typeof answer === "string");
+
   test(`shakeBall returns an string answer`, typeof answer === "string");
 
   test(

week-3/1-exercises/A-array-find/exercise.js

@@ -3,7 +3,14 @@
   Using .find(), we'd like to find the first name which starts with A and is longer than 7 letters.
 */
 
+
 // write your code here
+function findLongNameThatStartsWithA(names){
+  let output=names.find(function(name){
+    return name.charAt(0)==='A' && name.length>7;
+  })
+  return output;
+}
 
 var names = ["Rakesh", "Antonio", "Alexandra", "Andronicus", "Annam", "Mikey", "Anastasia", "Karim", "Ahmed"];
 
@@ -13,3 +20,4 @@ console.log(longNameThatStartsWithA);
 
 /* EXPECTED OUTPUT */
 // "Alexandra"
+

week-3/1-exercises/B-array-some/exercise.js

@@ -6,12 +6,21 @@
   - Do not edit any of the existing code
 */
 
-var pairsByIndex = [[0, 3], [1, 2], [2, 1], null, [3, 0]];
 
+var pairsByIndex = [[0, 3], [1, 2], [2, 1], null, [3, 0]];
+let test=pairsByIndex.some(function(value){
+  return value===null;
+})
+if(test){
+  console.log("array contain null value");
+  process.exit(1)
+}
+else{
 // If there is a null value in the array exit the program with the error code
 // https://nodejs.org/api/process.html#process_process_exit_code
 // process.exit(1);
 
+
 var students = ["Islam", "Lesley", "Harun", "Rukmini"];
 var mentors = ["Daniel", "Irina", "Mozafar", "Luke"];
 
@@ -22,3 +31,4 @@ var pairs = pairsByIndex.map(function(indexes) {
 });
 
 console.log(pairs);
+}