Glasgow class 6- Yesna Omar- JavaScript 1- week 3

1-exercises/B-array-literals/exercise.js

@@ -4,9 +4,9 @@
   Declare some variables assigned to arrays of values
 */
 
-let numbers = []; // add numbers from 1 to 10 into this array
+let numbers = [1,2,3,4,5,6,7,8,9,10]; // add numbers from 1 to 10 into this array
 let mentors; // Create an array with the names of the mentors: Daniel, Irina and Rares
-
+mentors = ["Daniel","Irina","Rares"]
 /* 
   DO NOT EDIT BELOW THIS LINE
   --------------------------- */

1-exercises/C-array-get-set/exercise.js

@@ -5,11 +5,14 @@
 */
 
 function first(arr) {
-  return; // complete this statement
+  return arr[0]; // complete this statement
 }
 
 function last(arr) {
-  return; // complete this statement
+  let lastIndex = arr.length;
+
+  return arr[lastIndex-1]; // complete this statement
+
 }
 
 /* 

1-exercises/C-array-get-set/exercises2.js

@@ -7,7 +7,7 @@
 */
 
 let numbers = [1, 2, 3]; // Don't change this array literal declaration
-
+numbers.push(4);
 /* 
   DO NOT EDIT BELOW THIS LINE
   --------------------------- */

1-exercises/D-for-loop/exercise.js

@@ -28,6 +28,10 @@ const AGES = [
 
 // TODO - Write for loop code here
 
+for (let i=0; i < WRITERS.length; i++){
+console.log(`${WRITERS[i]} is ${AGES[i]} years old`);
+}
+
 /*
 The output should look something like this:
 

1-exercises/E-while-loop-with-array/exercise.js

@@ -18,6 +18,14 @@ const BIRTHDAYS = [
 
 function findFirstJulyBDay(birthdays) {
     // TODO
+    let i =0;
+    while(i<birthdays.length){
+        if(birthdays[i].includes("July")){
+        return birthdays[i];
+        }
+        i++;
+    }
+
 }
 
 console.log(findFirstJulyBDay(BIRTHDAYS)); // should output "July 11th"

2-mandatory/1-weather-report.js

@@ -12,52 +12,53 @@
 */
 
 function getTemperatureReport(cities) {
-    // TODO
+  let returnArray = [];
+  for (let i = 0; i < cities.length; i++) {
+    let cityName = cities[i];
+    let cityTemperature = temperatureService(cityName);
+    returnArray.push(
+      `The temperature in ${cityName} is ${cityTemperature} degrees`
+    );
+  }
+  return returnArray;
 }
 
-
+//npm test -- --testPathPattern 1-weather-report
 /* ======= TESTS - DO NOT MODIFY ===== */
 
 function temperatureService(city) {
-    let temparatureMap  = new Map();
-
-    temparatureMap.set('London', 10);
-    temparatureMap.set('Paris', 12);
-    temparatureMap.set('Barcelona', 17);
-    temparatureMap.set('Dubai', 27);
-    temparatureMap.set('Mumbai', 29);
-    temparatureMap.set('São Paulo', 23);
-    temparatureMap.set('Lagos', 33);
-    
-    return temparatureMap.get(city);
+  let temparatureMap = new Map();
+
+  temparatureMap.set("London", 10);
+  temparatureMap.set("Paris", 12);
+  temparatureMap.set("Barcelona", 17);
+  temparatureMap.set("Dubai", 27);
+  temparatureMap.set("Mumbai", 29);
+  temparatureMap.set("São Paulo", 23);
+  temparatureMap.set("Lagos", 33);
+
+  return temparatureMap.get(city);
 }
 
 test("should return a temperature report for the user's cities", () => {
-    let usersCities = [
-        "London",
-        "Paris",
-        "São Paulo"
-    ]
-
-    expect(getTemperatureReport(usersCities)).toEqual([
-        "The temperature in London is 10 degrees",
-        "The temperature in Paris is 12 degrees",
-        "The temperature in São Paulo is 23 degrees"
-    ]);
+  let usersCities = ["London", "Paris", "São Paulo"];
+
+  expect(getTemperatureReport(usersCities)).toEqual([
+    "The temperature in London is 10 degrees",
+    "The temperature in Paris is 12 degrees",
+    "The temperature in São Paulo is 23 degrees",
+  ]);
 });
 
 test("should return a temperature report for the user's cities (alternate input)", () => {
-    let usersCities = [
-        "Barcelona",
-        "Dubai"
-    ]
-
-    expect(getTemperatureReport(usersCities)).toEqual([
-        "The temperature in Barcelona is 17 degrees",
-        "The temperature in Dubai is 27 degrees"
-    ]);
+  let usersCities = ["Barcelona", "Dubai"];
+
+  expect(getTemperatureReport(usersCities)).toEqual([
+    "The temperature in Barcelona is 17 degrees",
+    "The temperature in Dubai is 27 degrees",
+  ]);
 });
 
 test("should return an empty array if the user hasn't selected any cities", () => {
-    expect(getTemperatureReport([])).toEqual([]);
-});
+  expect(getTemperatureReport([])).toEqual([]);
+});

2-mandatory/2-financial-times.js

@@ -5,7 +5,12 @@
     Implement the function below, which will return a new array containing only article titles which will fit.
 */
 function potentialHeadlines(allArticleTitles) {
-    // TODO
+  // TODO
+  let result = [];
+  allArticleTitles.forEach((title) => {
+    if (title.length <= 65) result.push(title);
+  });
+  return result;
 }
 
 /*
@@ -14,7 +19,16 @@ function potentialHeadlines(allArticleTitles) {
     (you can assume words will always be seperated by a space)
 */
 function titleWithFewestWords(allArticleTitles) {
-    // TODO
+  // TODO
+  let wordsCount = [];
+  allArticleTitles.forEach((title) => {
+    let words = title.split(" ");
+    wordsCount.push(words.length);
+  });
+  let min = Math.min(...wordsCount);
+  let minIndex = wordsCount.indexOf(min);
+  let result = allArticleTitles[minIndex];
+  return result;
 }
 
 /*
@@ -23,59 +37,78 @@ function titleWithFewestWords(allArticleTitles) {
     (Hint: remember that you can also loop through the characters of a string if you need to)
 */
 function headlinesWithNumbers(allArticleTitles) {
-    // TODO
+  // TODO
+  let result = [];
+  let array = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
+  allArticleTitles.forEach((title) => {
+    if (array.some((element) => title.includes(element))) {
+      result.push(title);
+    }
+  });
+  return result;
 }
 
+//npm test -- --testPathPattern 2-financial-times
+
 /*
     The Financial Times wants to understand what the average number of characters in an article title is.
     Implement the function below to return this number - rounded to the nearest integer.
 */
 function averageNumberOfCharacters(allArticleTitles) {
-    // TODO
+  // TODO
+  let count = 0;
+  for (let i = 0; i < allArticleTitles.length; i++) {
+    count += allArticleTitles[i].length;
+    number = count / allArticleTitles.length;
+  }
+  return Math.round(number);
 }
-
-
-
 /* ======= List of Articles - DO NOT MODIFY ===== */
 const ARTICLE_TITLES = [
-    "Streaming wars drive media groups to spend more than $100bn on new content",
-    "Amazon Prime Video India country head: streaming is driving a TV revolution",
-    "Aerospace chiefs prepare for bumpy ride in recovery of long-haul flights",
-    "British companies look to muscle in on US retail investing boom",
-    "Libor to take firm step towards oblivion on New Year's Day",
-    "Audit profession unattractive to new recruits, says PwC boss",
-    "Chinese social media users blast Elon Musk over near miss in space",
-    "Companies raise over $12tn in 'blockbuster' year for global capital markets",
-    "The three questions that dominate investment",
-    "Brussels urges Chile's incoming president to endorse EU trade deal",
+  "Streaming wars drive media groups to spend more than $100bn on new content",
+  "Amazon Prime Video India country head: streaming is driving a TV revolution",
+  "Aerospace chiefs prepare for bumpy ride in recovery of long-haul flights",
+  "British companies look to muscle in on US retail investing boom",
+  "Libor to take firm step towards oblivion on New Year's Day",
+  "Audit profession unattractive to new recruits, says PwC boss",
+  "Chinese social media users blast Elon Musk over near miss in space",
+  "Companies raise over $12tn in 'blockbuster' year for global capital markets",
+  "The three questions that dominate investment",
+  "Brussels urges Chile's incoming president to endorse EU trade deal",
 ];
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 
 test("should only return potential headlines", () => {
-    expect(new Set(potentialHeadlines(ARTICLE_TITLES))).toEqual(new Set([
-        "British companies look to muscle in on US retail investing boom",
-        "Libor to take firm step towards oblivion on New Year's Day",
-        "Audit profession unattractive to new recruits, says PwC boss",
-        "The three questions that dominate investment"
-    ]));
+  expect(new Set(potentialHeadlines(ARTICLE_TITLES))).toEqual(
+    new Set([
+      "British companies look to muscle in on US retail investing boom",
+      "Libor to take firm step towards oblivion on New Year's Day",
+      "Audit profession unattractive to new recruits, says PwC boss",
+      "The three questions that dominate investment",
+    ])
+  );
 });
 
 test("should return an empty array for empty input", () => {
-    expect(potentialHeadlines([])).toEqual([]);
+  expect(potentialHeadlines([])).toEqual([]);
 });
 
 test("should return the title with the fewest words", () => {
-    expect(titleWithFewestWords(ARTICLE_TITLES)).toEqual("The three questions that dominate investment");
+  expect(titleWithFewestWords(ARTICLE_TITLES)).toEqual(
+    "The three questions that dominate investment"
+  );
 });
 
 test("should only return headlines containing numbers", () => {
-    expect(new Set(headlinesWithNumbers(ARTICLE_TITLES))).toEqual(new Set([
-        "Streaming wars drive media groups to spend more than $100bn on new content",
-        "Companies raise over $12tn in 'blockbuster' year for global capital markets"
-    ]));
+  expect(new Set(headlinesWithNumbers(ARTICLE_TITLES))).toEqual(
+    new Set([
+      "Streaming wars drive media groups to spend more than $100bn on new content",
+      "Companies raise over $12tn in 'blockbuster' year for global capital markets",
+    ])
+  );
 });
 
 test("should return the average number of characters in a headline", () => {
-    expect(averageNumberOfCharacters(ARTICLE_TITLES)).toEqual(65);
+  expect(averageNumberOfCharacters(ARTICLE_TITLES)).toEqual(65);
 });