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d7a6ba7
Mandetory
Meysam-Arshadi Dec 8, 2022
eee2e89
Update 1-weather-report.js
Meysam-Arshadi Dec 8, 2022
eedb2d6
Update 3-financial-times.js
Meysam-Arshadi Dec 10, 2022
9c583d6
Update 3-financial-times.js
Meysam-Arshadi Dec 10, 2022
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14 changes: 7 additions & 7 deletions 1-exercises/A-undefined/exercise.js
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Original file line number Diff line number Diff line change
Expand Up @@ -12,25 +12,25 @@
// Example 1
let a;
console.log(a);

// variable a has been declared but hasn't been initialized ( no value )

// Example 2
function sayHello() {
let message = "Hello";
let message = "Hello";
}

let hello = sayHello();
console.log(hello);


// "hello has been defined by giving a value as a function sayHello but this function 1- does not return/output anything 2- there is no value been assigned to it"
// Example 3
function sayHelloToUser(user) {
console.log(`Hello ${user}`);
console.log(`Hello ${user}`);
}

sayHelloToUser();

// there is no value being assigned to the function variable

// Example 4
let arr = [1,2,3];
let arr = [1, 2, 3];
console.log(arr[3]);
// we are calling an idex which doesn't exist in this array
9 changes: 8 additions & 1 deletion 1-exercises/B-while-loop/exercise.js
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Expand Up @@ -6,7 +6,14 @@
*/

function evenNumbers(n) {
// TODO
let num = 0;
let arr = [];
while (n > 0) {
arr.push(num);
num = num + 2;
n--;
}
console.log(arr);

@nuclear-pasta nuclear-pasta Dec 22, 2022

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🚀

}

evenNumbers(3); // should output 0,2,4
Expand Down
26 changes: 16 additions & 10 deletions 1-exercises/C-while-loop-with-array/exercise.js
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Expand Up @@ -5,19 +5,25 @@
*/

const BIRTHDAYS = [
"January 7th",
"February 12th",
"April 3rd",
"April 5th",
"May 3rd",
"July 11th",
"July 17th",
"September 28th",
"November 15th"
"January 7th",
"February 12th",
"April 3rd",
"April 5th",
"May 3rd",
"July 11th",
"July 17th",
"September 28th",
"November 15th",
];

function findFirstJulyBDay(birthdays) {
// TODO
i = 0;
while (i < birthdays.length) {
if (birthdays[i].includes("July")) {
return birthdays[i];
}
i++;
}
}

console.log(findFirstJulyBDay(BIRTHDAYS)); // should output "July 11th"
14 changes: 12 additions & 2 deletions 1-exercises/D-do-while/exercise.js
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Expand Up @@ -7,9 +7,19 @@
*/

function evenNumbersSum(n) {
// TODO
let number = 0;
let sum = 0;
do {
sum += number;
number += 2;
n--;
} while (n > 0);

return sum;
}

console.log(evenNumbersSum(3)); // should output 6
console.log(evenNumbersSum(0)); // should output 0
console.log(evenNumbersSum(10)); // should output 90
console.log(evenNumbersSum(10)); // should output 90

3(3 + 1);
7 changes: 2 additions & 5 deletions 1-exercises/E-for-loop/exercise1.js
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Expand Up @@ -4,11 +4,8 @@
Change the while loop below into a for loop.
*/


// Change the below code to use a for loop instead of a while loop.
let i = 0;
while(i < 26) {
console.log(String.fromCharCode(97 + i));
i++;
for (let i = 0; i < 26; i++) {
console.log(String.fromCharCode(97 + i));
}
// The output shouldn't change.
24 changes: 10 additions & 14 deletions 1-exercises/E-for-loop/exercise2.js
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Expand Up @@ -11,22 +11,18 @@
*/

const WRITERS = [
"Virginia Woolf",
"Zadie Smith",
"Jane Austen",
"Bell Hooks",
"Yukiko Motoya"
]

const AGES = [
59,
40,
41,
63,
49
"Virginia Woolf",
"Zadie Smith",
"Jane Austen",
"Bell Hooks",
"Yukiko Motoya",
];

// TODO - Write for loop code here
const AGES = [59, 40, 41, 63, 49];

for (let i = 0; i < WRITERS.length; i++) {

@nuclear-pasta nuclear-pasta Dec 22, 2022

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nice! You can also use map when there is a transformation of an array into another array of the same size.

console.log(WRITERS[i] + " is " + AGES[i] + " years old");
}

/*
The output should look something like this:
Expand Down
17 changes: 12 additions & 5 deletions 1-exercises/F-for-of-loop/exercise.js
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Expand Up @@ -4,13 +4,20 @@

// TODO Use a for-of loop to output each of the tube stations below.
let tubeStations = [
"Aldgate",
"Baker Street",
"Picadilly Circus",
"Oxford Street",
"Tottenham Court Road"
"Aldgate",
"Baker Street",
"Picadilly Circus",
"Oxford Street",
"Tottenham Court Road",
];

for (let station of tubeStations) {
console.log(station);
}

// TODO Use a for-of loop to capitalise and output each letter in the string seperately.
let str = "codeyourfuture";

for (let charachter of str) {
console.log(charachter.toUpperCase());
}
65 changes: 30 additions & 35 deletions 2-mandatory/1-weather-report.js
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Expand Up @@ -12,52 +12,47 @@
*/

function getTemperatureReport(cities) {
// TODO
return cities.map(
(el) =>
"The temperature in " + el + " is " + temperatureService(el) + " degrees"
);
}


/* ======= 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([]);
});
80 changes: 51 additions & 29 deletions 2-mandatory/3-financial-times.js
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Expand Up @@ -5,7 +5,14 @@
Implement the function below, which will return a new array containing only article titles which will fit.
*/
function potentialHeadlines(allArticleTitles) {
// TODO
// TODO
let headLines = [];
for (let singleHeadLine of articleArray) {
if (singleHeadLine.length <= 65) {
headLines.push(singleHeadLine);
}
return headLines;
}
}

/*
Expand All @@ -14,7 +21,18 @@ function potentialHeadlines(allArticleTitles) {
(you can assume words will always be seperated by a space)
*/
function titleWithFewestWords(allArticleTitles) {
// TODO
// TODO
let fewestWordsSoFar
let titleWithFewestWords

for (let title of allArticleTitles) {
let numOfWords.split('')
if (numOfWords <= fewestWordsSoFar) {
let fewestWordsSoFar = title
}

}
return title
}

@tiritaki tiritaki Dec 15, 2022

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Hi @Meysam-Arshadi
I fixed solution for titleWithFewestWords(allArticleTitles)

function titleWithFewestWords(allArticleTitles) {
// TODO
let fewestWordsSoFar
let titleWithFewestWords =''

for (let title of allArticleTitles) {
let numOfWords = title.split('').length
if (fewestWordsSoFar == undefined || numOfWords <= fewestWordsSoFar ) {
fewestWordsSoFar = numOfWords
titleWithFewestWords = title
}
}
return titleWithFewestWords
}

You can find all solutions here https://github.com/CodeYourFuture/JavaScript-Core-1-Coursework-Week3-Solution/blob/main/2-mandatory/3-financial-times.js

/*
Expand All @@ -23,59 +41,63 @@ 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
}

/*
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
}



/* ======= 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);
});