catsAndIvy
2 years ago
parent
0db687a7f5
commit
89dca53a25
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// Exercise 1 - Level 3
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const countries = require('./countries.js');
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// 1. The following is an array of 10 students ages:
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const ages = [19, 22, 19, 24, 20, 25, 26, 24, 25, 24]
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// - Sort the array and find the min and max age
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const sortedArray = ages.sort()
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const minAge = sortedArray[0]
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const maxAge = sortedArray[sortedArray.length-1]
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// - Find the median age(one middle item or two middle items divided by two)
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const medianAge = (sortedArray[4] + sortedArray[5])/2
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// - Find the average age(all items divided by number of items)
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const averageAge = (sortedArray.reduce((number, a) => number + a, 0))/sortedArray.length
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// - Find the range of the ages(max minus min)
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const rangeAge = maxAge - minAge
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// - Compare the value of (min - average) and (max - average)
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const compareAge = (maxAge - averageAge)-(minAge - averageAge)
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// 2. The following is a countries array:
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const countries = require('./countries.js');
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// Slice the first ten countries from the countries array
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const slicedCountries = countries.slice(0,10)
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// Find the middle country(ies) in the countries array
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const middleCountry = countries[5]
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const firstHalf = countries.slice(0,6)
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// Divide the countries array into two equal arrays if it is even. If countries array is not even , one more country for the first half.
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const firstHalf = countries.slice(0,6)
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const secondHalf = countries.slice(6,11)
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@ -0,0 +1,63 @@
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// Exercise 4 - Level 1
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// 1. Declare a function fullName and it takes firstName, lastName as a parameter and it returns your full - name.
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const fullName = function (firstName, lastName) {
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console.log(firstName + " " + lastName)
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}
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// 2. Declare a function addNumbers and it takes two two parameters and it returns sum.
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const addNumbers = function (a, b) {
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console.log(a + b)
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}
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// 3. Area of a circle is calculated as follows: area = π x r x r. Write a function which calculates _areaOfCircle
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const areaOfCircle = function (radius) {
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const circleArea = Math.PI * radius * radius
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console.log(`The area of the circle is ${circleArea}`)
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}
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// 4. Temperature in oC can be converted to oF using this formula: oF = (oC x 9/5) + 32. Write a function which convert oC to oF convertCelciusToFahrenheit.
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const convertCelciusToFahrenheit = function (celsius) {
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const fahrenheit = (celsius * 9/5) + 32
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console.log(`${celsius} degrees Celsius is the same as ${fahrenheit} degrees Fahrenheit`)
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}
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// 5. Body mass index(BMI) is calculated as follows: bmi = weight in Kg / (height x height) in m2. Write a function which calculates bmi. BMI is used to broadly define different weight groups in adults 20 years old or older.Check if a person is underweight, normal, overweight or obese based the information given below.
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// The same groups apply to both men and women.
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// Underweight: BMI is less than 18.5
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// Normal weight: BMI is 18.5 to 24.9
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// Overweight: BMI is 25 to 29.9
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// Obese: BMI is 30 or more
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const checkBMI = function (weight, height) {
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const bmi = weight / (height * height)
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if (bmi >= 30) {
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console.log(`Your BMI is ${bmi} which is 'obese'.`);
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} else if (bmi >= 25 && bmi <= 29.9) {
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console.log(`Your BMI is ${bmi} which is 'overweight'.`);
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} else if (bmi >= 18.5 && bmi <= 24.9) {
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console.log(`Your BMI is ${bmi} which is 'normal weight'.`);
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} else if (bmi < 18.5) {
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console.log(`Your BMI is ${bmi} which is 'underweight'.`);
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}
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}
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// 6. Write a function called checkSeason, it takes a month parameter and returns the season:Autumn, Winter, Spring or Summer.
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const checkSeason = function (month) {
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if (month === 'September' || month === 'October' || month === 'November') {
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console.log('The season is Autumn')
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} else if (month === 'December' || month === 'January' || month === 'February') {
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console.log('The season is Winter')
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} else if (month === 'March' || month === 'April' || month === 'May') {
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console.log('The season is Spring')
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} else if (month === 'June' || month === 'July' || month === 'August') {
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console.log('The season is Summer') }
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}
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@ -0,0 +1 @@
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// Exercise 4 - Level 2
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@ -1,22 +0,0 @@
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// Exercise 4 - Level 1
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// 1. Declare a function fullName and it takes firstName, lastName as a parameter and it returns your full - name.
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// 2. Declare a function addNumbers and it takes two two parameters and it returns sum.
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// 3. Area of a circle is calculated as follows: area = π x r x r. Write a function which calculates _areaOfCircle
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// 4. Temperature in oC can be converted to oF using this formula: oF = (oC x 9/5) + 32. Write a function which convert oC to oF convertCelciusToFahrenheit.
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// 5. Body mass index(BMI) is calculated as follows: bmi = weight in Kg / (height x height) in m2. Write a function which calculates bmi. BMI is used to broadly define different weight groups in adults 20 years old or older.Check if a person is underweight, normal, overweight or obese based the information given below.
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// The same groups apply to both men and women.
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// Underweight: BMI is less than 18.5
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// Normal weight: BMI is 18.5 to 24.9
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// Overweight: BMI is 25 to 29.9
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// Obese: BMI is 30 or more
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// 6. Write a function called checkSeason, it takes a month parameter and returns the season:Autumn, Winter, Spring or Summer.
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