Week2 Assignment

From e2fc154a6957c387db2a7096201a70450cf81158 Mon Sep 17 00:00:00 2001 From: Tirsa Date: Sun, 6 May 2018 11:40:52 +0200 Subject: [PATCH 1/2] adding assignment --- Week2/homework/index.html | 12 ++++++ Week2/homework/week2.js | 87 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 99 insertions(+) create mode 100644 Week2/homework/index.html create mode 100644 Week2/homework/week2.js diff --git a/Week2/homework/index.html b/Week2/homework/index.html new file mode 100644 index 000000000..4af5acb4c --- /dev/null +++ b/Week2/homework/index.html @@ -0,0 +1,12 @@ + + + + + + Week2 Assignment + + + + + + \ No newline at end of file diff --git a/Week2/homework/week2.js b/Week2/homework/week2.js new file mode 100644 index 000000000..ca5368f37 --- /dev/null +++ b/Week2/homework/week2.js @@ -0,0 +1,87 @@ +//Say you would like to write a program that doubles the odd numbers in an array +//and throws away the even number. + +//Your solution could be something like this: + +let numbers = [1, 2, 3, 4]; +let newNumbers = []; + +for (let i = 0; i < numbers.length; i++) { + if (numbers[i] % 2 !== 0) { + newNumbers.push(numbers[i] * 2); + } +} + +console.log("The doubled numbers are", newNumbers); // [2, 6] + +// 1) Rewrite the above program using map and filter don't forget to use => + +let numArray = [1, 2, 3, 4]; +let newNumbersArray = []; + +newNumbersArray = numArray.filter(value => value % 2 !== 0); //an array of [1,3] +console.log(newNumbersArray); + +var times2 = newNumbersArray.map(value => value * 2); //1*2=3, 3*2=6. output 2, 6 +console.log("The doubled numbers are: " + times2); + + +//Underneath you see a very interesting small insight in Maartje's work: + +let monday = [ + { name: 'Write a summary HTML/CSS', duration: 180 }, + { name: 'Some web development', duration: 120 }, + { name: 'Fix homework for class10', duration: 20 }, + { name: 'Talk to a lot of people', duration: 200 } +]; + +let tuesday = [ + { name: 'Keep writing summary', duration: 240 }, + { name: 'Some more web development', duration: 180 }, + { name: 'Staring out the window', duration: 10 }, + { name: 'Talk to a lot of people', duration: 200 }, + { name: 'Look at application assignments new students', duration: 40 } +]; + +let tasks = monday.concat(tuesday); +console.log(tasks); + +// 2) Write a program that does the following below. Use map and filter. You will also need a forEach or a for loop for the 'summing up' part. +/*Collect two days' worth of tasks. +Convert the task durations to hours, instead of minutes. +Filter out everything that took two hours or more (remove from the collection) +Multiply the each duration by a per-hour rate for billing (you can decide yourself what Maartje should make per hour) and sum it all up. +Output a formatted Euro amount. +Don't forget to use => */ +let thursday = [ + { activity: "get kids ready for school", hours: 1 }, + { activity: "drop off/pick up kids at school", hours: 1 }, + { activity: "attend a meetup", hours: 3 }, + { activity: "study for HYF", hours: 5 }, + { activity: "cook dinner", hours: 1 }, + { activity: "kid's bedtime routine", hours: 1 }, + { activity: "relax, watch tv", hours: 3 }, +]; +let friday = [ + { activity: "get kids ready for school", hours: 1 }, + { activity: "drop off/pick up kids at school", hours: 1 }, + { activity: "study for HYF", hours: 8 }, + { activity: "cook dinner", hours: 1 }, + { activity: "kid's bedtime routine", hours: 1 }, + { activity: "go out with friends", hours: 4 }, +]; +let activities = thursday.concat(friday); //combines both arrays +//console.log(activities); + +let underTwo= activities.filter(item=> item.hours <= 2); // creates a new array that only includes the activities that were under 2 hours +//console.log(underTwo); + +let hourlyRates= underTwo.map(item=> item.hours*25.00); // creates an array with the hourly rates +//console.log(hourlyRates); + +let payment= hourlyRates.reduce( (accumulator, currentValue) => accumulator + currentValue ); //reduces payment to 200 which is all the hourly rates combined + +let totalEuros= payment.toLocaleString('en-US', {style: 'currency', currency: 'EUR'}); +//console.log(totalEuros); //200 euros + +console.log("I would get paid: " + totalEuros); From f64c11146e85d3e0a3c2f555905de85b3471bc26 Mon Sep 17 00:00:00 2001 From: Tirsa Date: Sun, 6 May 2018 11:55:01 +0200 Subject: [PATCH 2/2] changed < to > in overTwo --- Week2/homework/week2.js | 62 ++++++++++++++++++++--------------------- 1 file changed, 31 insertions(+), 31 deletions(-) diff --git a/Week2/homework/week2.js b/Week2/homework/week2.js index ca5368f37..c72a3fa04 100644 --- a/Week2/homework/week2.js +++ b/Week2/homework/week2.js @@ -7,9 +7,9 @@ let numbers = [1, 2, 3, 4]; let newNumbers = []; for (let i = 0; i < numbers.length; i++) { - if (numbers[i] % 2 !== 0) { - newNumbers.push(numbers[i] * 2); - } + if (numbers[i] % 2 !== 0) { + newNumbers.push(numbers[i] * 2); + } } console.log("The doubled numbers are", newNumbers); // [2, 6] @@ -29,18 +29,18 @@ console.log("The doubled numbers are: " + times2); //Underneath you see a very interesting small insight in Maartje's work: let monday = [ - { name: 'Write a summary HTML/CSS', duration: 180 }, - { name: 'Some web development', duration: 120 }, - { name: 'Fix homework for class10', duration: 20 }, - { name: 'Talk to a lot of people', duration: 200 } + { name: 'Write a summary HTML/CSS', duration: 180 }, + { name: 'Some web development', duration: 120 }, + { name: 'Fix homework for class10', duration: 20 }, + { name: 'Talk to a lot of people', duration: 200 } ]; let tuesday = [ - { name: 'Keep writing summary', duration: 240 }, - { name: 'Some more web development', duration: 180 }, - { name: 'Staring out the window', duration: 10 }, - { name: 'Talk to a lot of people', duration: 200 }, - { name: 'Look at application assignments new students', duration: 40 } + { name: 'Keep writing summary', duration: 240 }, + { name: 'Some more web development', duration: 180 }, + { name: 'Staring out the window', duration: 10 }, + { name: 'Talk to a lot of people', duration: 200 }, + { name: 'Look at application assignments new students', duration: 40 } ]; let tasks = monday.concat(tuesday); @@ -49,39 +49,39 @@ console.log(tasks); // 2) Write a program that does the following below. Use map and filter. You will also need a forEach or a for loop for the 'summing up' part. /*Collect two days' worth of tasks. Convert the task durations to hours, instead of minutes. -Filter out everything that took two hours or more (remove from the collection) +Filter out everything that took less than two hours (i.e., remove from the collection) Multiply the each duration by a per-hour rate for billing (you can decide yourself what Maartje should make per hour) and sum it all up. Output a formatted Euro amount. Don't forget to use => */ let thursday = [ - { activity: "get kids ready for school", hours: 1 }, - { activity: "drop off/pick up kids at school", hours: 1 }, - { activity: "attend a meetup", hours: 3 }, - { activity: "study for HYF", hours: 5 }, - { activity: "cook dinner", hours: 1 }, - { activity: "kid's bedtime routine", hours: 1 }, - { activity: "relax, watch tv", hours: 3 }, + { activity: "get kids ready for school", hours: 1 }, + { activity: "drop off/pick up kids at school", hours: 1 }, + { activity: "attend a meetup", hours: 3 }, + { activity: "study for HYF", hours: 5 }, + { activity: "cook dinner", hours: 1 }, + { activity: "kid's bedtime routine", hours: 1 }, + { activity: "relax, watch tv", hours: 3 }, ]; let friday = [ - { activity: "get kids ready for school", hours: 1 }, - { activity: "drop off/pick up kids at school", hours: 1 }, - { activity: "study for HYF", hours: 8 }, - { activity: "cook dinner", hours: 1 }, - { activity: "kid's bedtime routine", hours: 1 }, - { activity: "go out with friends", hours: 4 }, + { activity: "get kids ready for school", hours: 1 }, + { activity: "drop off/pick up kids at school", hours: 1 }, + { activity: "study for HYF", hours: 8 }, + { activity: "cook dinner", hours: 1 }, + { activity: "kid's bedtime routine", hours: 1 }, + { activity: "go out with friends", hours: 4 }, ]; let activities = thursday.concat(friday); //combines both arrays //console.log(activities); -let underTwo= activities.filter(item=> item.hours <= 2); // creates a new array that only includes the activities that were under 2 hours -//console.log(underTwo); +let overTwo = activities.filter(item => item.hours >= 2); // creates a new array that only includes the activities that took 2 hours or more +//console.log(overTwo); -let hourlyRates= underTwo.map(item=> item.hours*25.00); // creates an array with the hourly rates +let hourlyRates = underTwo.map(item => item.hours * 25.00); // creates an array with the hourly rates //console.log(hourlyRates); -let payment= hourlyRates.reduce( (accumulator, currentValue) => accumulator + currentValue ); //reduces payment to 200 which is all the hourly rates combined +let payment = hourlyRates.reduce((accumulator, currentValue) => accumulator + currentValue); //reduces payment to 200 which is all the hourly rates combined -let totalEuros= payment.toLocaleString('en-US', {style: 'currency', currency: 'EUR'}); +let totalEuros = payment.toLocaleString('en-US', { style: 'currency', currency: 'EUR' }); //console.log(totalEuros); //200 euros console.log("I would get paid: " + totalEuros);