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Finished #255

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42 changes: 32 additions & 10 deletions src/01-functions.js
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,9 @@
* alwaysTrue();
* //> true
*/
function alwaysTrue() {}
function alwaysTrue() {
return true
}

/**
* greet()
Expand All @@ -24,7 +26,9 @@ function alwaysTrue() {}
* greet("Ian");
* //> "Hello, Ian."
*/
function greet() {}
function greet(name) {
return `Hello, ${name}.`
}

/**
* add()
Expand All @@ -39,7 +43,9 @@ function greet() {}
* add(10, 20);
* //> 30
*/
function add() {}
function add(a, b) {
return a + b
}

/**
* multiply()
Expand All @@ -54,7 +60,9 @@ function add() {}
* multiply(2, 5);
* //> 10
*/
function multiply() {}
function multiply(a, b) {
return a * b
}

/**
* average()
Expand All @@ -74,7 +82,9 @@ function multiply() {}
* average(10, 6);
* //> 8 // 10 + 6 = 16; 16/2 = 8;
*/
function average() {}
function average(a, b) {
return (a + b) / 2
}

/**
* averageThree()
Expand All @@ -93,7 +103,9 @@ function average() {}
* averageThree(10, 11, 19);
* //> 10 // 10 + 11 + 19 = 30; 30 / 3 = 10;
*/
function averageThree() {}
function averageThree(a, b, c) {
return (a+b+c)/3
}

/**
* compareTypes()
Expand All @@ -112,7 +124,11 @@ function averageThree() {}
* compareTypes("left", 10);
* //> false
*/
function compareTypes() {}
function compareTypes(a, b) {
if (typeof(a) === typeof(b)){
return true
} else return false
}

/**
* flipSign()
Expand All @@ -131,7 +147,9 @@ function compareTypes() {}
* flipSign(50);
* //> -50
*/
function flipSign() {}
function flipSign(a) {
return -1 * a
}

/**
* joinStringsWithSpaces()
Expand All @@ -151,7 +169,9 @@ function flipSign() {}
* joinStringsWithSpaces("left", "right", "up", "down", "away");
* //> "left right up down away"
*/
function joinStringsWithSpaces() {}
function joinStringsWithSpaces(a,b,c,d,e) {
return `${a} ${b} ${c} ${d} ${e}`
}

/**
* getFirstAndLastCharacter()
Expand All @@ -168,7 +188,9 @@ function joinStringsWithSpaces() {}
* getFirstAndLastCharacter("upwards");
* //> "us"
*/
function getFirstAndLastCharacter() {}
function getFirstAndLastCharacter(a) {
return `${a[0]}${a[a.length -1]}`
}

// Do not change the code below.
module.exports = {
Expand Down
53 changes: 43 additions & 10 deletions src/02-data-types.js
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,9 @@
* getLengthOfString("down");
* //> 4
*/
function getLengthOfString(str) {}
function getLengthOfString(str) {
return str.length
}

/**
* convertToNumber()
Expand All @@ -22,7 +24,9 @@ function getLengthOfString(str) {}
* convertToNumber("111");
* //> 111
*/
function convertToNumber(val) {}
function convertToNumber(val) {
return Number(val)
}

/**
* convertToString()
Expand All @@ -36,7 +40,9 @@ function convertToNumber(val) {}
* convertToString(99);
* //> "99"
*/
function convertToString(val) {}
function convertToString(val) {
return String(val)
}

/**
* convertToShoutingText()
Expand All @@ -49,7 +55,9 @@ function convertToString(val) {}
* convertToShoutingText("Hello There");
* //> "HELLO THERE"
*/
function convertToShoutingText(text) {}
function convertToShoutingText(text) {
return text.toUpperCase()
}

/**
* convertToWhisperText()
Expand All @@ -62,7 +70,9 @@ function convertToShoutingText(text) {}
* convertToWhisperText("Hello There");
* //> "hello there"
*/
function convertToWhisperText(text) {}
function convertToWhisperText(text) {
return text.toLowerCase()
}

/**
* checkIfCharacterIsInString()
Expand All @@ -79,7 +89,14 @@ function convertToWhisperText(text) {}
* checkIfCharacterIsInString("hello there", "a");
* //> false
*/
function checkIfCharacterIsInString(text, character) {}
function checkIfCharacterIsInString(text, character) {
// for (let i = 0; i < text.length; i++){
// if (text[i] === character){
// return true
// } else return false
// }
return text.includes(character)
}

/**
* isEven()
Expand All @@ -95,7 +112,11 @@ function checkIfCharacterIsInString(text, character) {}
* isEven(11);
* //> false
*/
function isEven(num) {}
function isEven(num) {
if (num % 2 === 0){
return true
} else return false
}

/**
* isOdd()
Expand All @@ -111,7 +132,11 @@ function isEven(num) {}
* isOdd(11);
* //> true
*/
function isOdd(num) {}
function isOdd(num) {
if (num % 2 === 1){
return true
} else return false
}

/**
* isTruthy()
Expand All @@ -127,7 +152,11 @@ function isOdd(num) {}
* isTruthy(null);
* //> false
*/
function isTruthy(val) {}
function isTruthy(val) {
if (val && val){
return true
} else return false
}

/**
* isFalsy()
Expand All @@ -143,7 +172,11 @@ function isTruthy(val) {}
* isFalsy(" ");
* //> false
*/
function isFalsy(val) {}
function isFalsy(val) {
if (val && val){
return false
} else return true
}

// Do not change the code below.
module.exports = {
Expand Down
84 changes: 74 additions & 10 deletions src/03-control-flow.js
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,11 @@
* isEqual(10, "10");
* //> false
*/
function isEqual(a, b) {}
function isEqual(a, b) {
if (a === b){
return true
} else return false
}

/**
* findLarger()
Expand All @@ -28,7 +32,11 @@ function isEqual(a, b) {}
* findLarger(19, 7);
* //> 19
*/
function findLarger(a, b) {}
function findLarger(a, b) {
if (a > b){
return a
} else return b
}

/**
* findLargerOrTie()
Expand All @@ -45,7 +53,13 @@ function findLarger(a, b) {}
* findLargerOrTie(0, 0);
* //> "tie"
*/
function findLargerOrTie(a, b) {}
function findLargerOrTie(a, b) {
if (a > b){
return a
} else if (a === b){
return "tie"
} else return b
}

/**
* positiveNegativeOrZero()
Expand All @@ -65,7 +79,15 @@ function findLargerOrTie(a, b) {}
* positiveNegativeOrZero(1);
* //> "Positive"
*/
function positiveNegativeOrZero(a) {}
function positiveNegativeOrZero(a) {
if (Math.sign(a) === 1){
return 'Positive'
} else if (Math.sign(a) === -1){
return 'Negative'
} else if (a === 0){
return 'Zero'
}
}

/**
* aroundTheWorldGreeting()
Expand All @@ -86,7 +108,15 @@ function positiveNegativeOrZero(a) {}
* aroundTheWorldGreeting();
* //> "Hello World"
*/
function aroundTheWorldGreeting(language) {}
function aroundTheWorldGreeting(language) {
if (language === 'english'){
return "Hello World"
} else if (language === 'spanish'){
return "Hola Mundo"
} else if (language === 'german'){
return "Hallo Welt"
} else return "Hello World"
}

/**
* aroundTheWorldGreetingWithSwitch()
Expand All @@ -109,7 +139,21 @@ function aroundTheWorldGreeting(language) {}
* aroundTheWorldGreetingWithSwitch();
* //> "Hello World"
*/
function aroundTheWorldGreetingWithSwitch(language) {}
function aroundTheWorldGreetingWithSwitch(language) {
let myDefault = "Hello World"

switch (language){
case "english":
myDefault = "Hello World";
break;
case "spanish":
myDefault = "Hola Mundo";
break;
case "german":
myDefault = "Hallo Welt";
break;
} return myDefault
}

/**
* calculateLetterGrade()
Expand All @@ -128,7 +172,17 @@ function aroundTheWorldGreetingWithSwitch(language) {}
* calculateLetterGrade(99);
* //> "A"
*/
function calculateLetterGrade(grade) {}
function calculateLetterGrade(grade) {
if (grade >= 90){
return "A"
} else if (grade >= 80){
return "B"
} else if (grade >= 70){
return "C"
} else if (grade >= 60){
return "D"
} else return "F"
}

/**
* animalCounts()
Expand All @@ -146,7 +200,11 @@ function calculateLetterGrade(grade) {}
* animalCounts("pig", 1);
* //> "1 pig"
*/
function animalCounts(animal, numberOfAnimals) {}
function animalCounts(animal, numberOfAnimals) {
if (numberOfAnimals > 1){
return `${numberOfAnimals} ${animal}s`
} else return `${numberOfAnimals} ${animal}`
}

/**
* evenOrOdd()
Expand All @@ -163,7 +221,11 @@ function animalCounts(animal, numberOfAnimals) {}
* evenOrOdd(48);
* //> "Even"
*/
function evenOrOdd(a) {}
function evenOrOdd(a) {
if (a % 2 === 0){
return `Even`
} else return "Odd"
}

/**
* evenOrOddWithTernary()
Expand All @@ -179,7 +241,9 @@ function evenOrOdd(a) {}
* evenOrOddWithTernary(8);
* //> "Even"
*/
function evenOrOddWithTernary(a) {}
function evenOrOddWithTernary(a) {
return a % 2 === 0 ? "Even" : "Odd"
}

// Do not change any code below this line.
module.exports = {
Expand Down
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