- Intro To Node Module Assessment!
- Short Answers
- Question 1: petJudger
- Question 2: loopFromOneUpToAnother
- Question 3: shoutEveryLetterForLoop
- Question 4: shoutArrayMethod
- Question 5: generateMultiplesOf5ToNum
- Question 6: isLongArray
- Question 7: addToFrontOrBack
- Question 8: replaceMiddleValue
- Question 9: getAllXCoordinates
- Question 10: carMaker
- Question 11: getFavoriteChildName
- Question 12: getPessimisticTotal
- Question 13: getNamesOfGreedyGnomes
- Question 14: getAllNumbersFromString
- Question 15: DEBUG - fixVariables
- Question 16: DEBUG - doubleAllItemsPurely,
- Question 17: DEBUG - addChildToParentMutation,
- Question 18: obliterate
Hello and welcome to the node assessment! Before we continue, we want to ground you in the fact that the goal of this assignment is to help you. This is not about grades, it's about finding out what you know and if you still need help in some areas. Attempt as many questions as you can, some code is always better than no code!
Whenever you take an assessment, you may be flustered. The first step is to count 15 seconds. This feels unbearably long in the moment and a waste of precious time! But remember, you have thousands and thousands of seconds. You know how each one felt like forever? Then that means you have a ton of time to work. Breathe in and let the adrenaline rush hit you, and then let it subside so you can focus.
We recommend reading over all the short answer questions and code prompts before your start working. There may be things you know right off the bat, and filling them out first can help you feel more confident. Nothing here is linear, and everything can be done in whatever order you prefer.
Some other helpful things:
- This is open book, open note, open documentation, open console. Use your resources. Just don't use your neighbor. 😉
- If you're not sure what a question is asking, reach out to an instructor.
- Pay close attention to your spelling and grammar for the short answers.
- Remember, we're looking for clarity and conciseness in the short answers.
- We've provided a
playground.jsfile for you to mess around with if you want. - DO NOT DWELL ON ANY SINGLE QUESTION. If you're stuck, move on and come back to it later.
Good luck everyone and when in doubt, read the tests!
Make sure to do these! In fact, if you do them first, it may help you on some of the coding questions.
Write a function petJudger() that takes 2 args: a string petBreed and a string petName. It should log the following:
- If even one of those arguments is missing, log:
Please provide a valid pet - If the
petBreedis 'dog' log:I love dogs! (name) is so cute! - If the
petBreedis 'cat' log:I love cats! (name) is so cute! - If the
petBreedis 'turtle' log:Who doesn't love a good turtle? (name) is the tops. - If the
petBreedis 'snake' log:Not a fan, please take (name) and leave. - All other breeds log:
What an...interesting pet.
Write a function loopFromOneUpToAnother() that takes 2 args: a number firstNum and a number secondNum. Log out each number, with the first arg being inclusive, and the second arg being exclusive. Use the tests to determine what to do if the numbers are equal or the second is smaller.
Using a for loop, write a function shoutEveryLetterForLoop() that takes a string str. It should log each letter capitalized and with a '!' added. Do not use a higher-order method.
shoutEveryLetterForLoop('hey')
// H!
// E!
// Y!There will always be a string, and it will have no spaces or punctuation, but use the tests to see what should happen if it's a blank string ''.
Alright, now using an array method (no for or while loops!), write shoutArrayMethod(), which should output exactly the same logs as shoutEveryLetterForLoop(). Which is the best array method to use?
Using a for loop, write a function generateMultiplesOf5ToNum() that takes a number num. It should create an array of all multiples of 5 and return that array. You will always get a number. Please read the tests to figure out whether or not num should be inclusive and other edge cases.
Write a function isLongArray() that takes an array arr. If the array is longer than 10 items, return true. Otherwise, return false.
Write a function addToFrontOrBack() that takes 3 args: an array arr, a value of any type, and a boolean isBack. Insert the value as either the first or last value in the arr, depending on the boolean isBack. An array will always be provided, but it may be empty, check the tests to see what to do. Also, the value may not exist. If there is no value (undefined or null), return the original unaltered array. Ordinarily, the function should have no return value.
Write a function replaceMiddleValue() that takes 2 args: an array arr and a value of any type. The function should find the middle index of the array and then replace the value there with the input value.
Check the tests to see exactly which index should be the "middle." Don't overthink it!
Write a function getAllXCoordinates() that takes an array of coordinate pairs arrOfCoords. This function should return a new array full of only the x coordinates (that is the first value in the coordinate arrays). Like this:
// [x, y]
getAllXCoordinates([[1, 2], [3, 4], [5, 6]])
// [1, 3, 5]
// [x, y, z]
getAllXCoordinates([[1, 2, 3], [4, 5, 6], [7, 8, 9]])
// [1, 4, 7]Write a function carMaker() that takes 4 arguments: a string name, a string maker, a number year, and an object owner. The function should return an object with 5 properties: name, year, maker, needsOilChange, and owners. name, year, and maker should match exactly the arguments given. needsOilChange should be false. And lastly, owners should be an array with only one object in it: the actual owner that was passed in, not a copy.
Write a function getFavoriteChildName() that takes an object parent. The function should return the name of the first child object in the parent.children array. There will always be an array, but if it is empty, return null.
Write a function getPessimisticTotal that takes in an array nums. The function should add of the array numbers up and then round that total down to the nearest integer. We'll say that again: add the floats together to get a total and then round down to the nearest integer. The function should return that integer.
There will always be an array, but if it is empty, simply return 0.
Write a function getNamesOfGreedyGnomes that takes in an array gnomes of garden gnome objects. Each gnome looks like this:
{
name: 'Garbeldel',
gardenCount: 2,
age: 407,
stolenDecorations: ['chair', 'water fountain'],
}A gnome is considered "greedy" if it has stolen more than one decoration.
You must return an array of only the names of each greedy garden gnome. Here's the catch, do not use a for loop.
Write a function getAllNumbersFromString that takes in a string str. The function should return an array of all the numbers in the string. If there are no numbers, return an empty array. The returned numbers will be strings, not numbers. Look at these example (note which numbers are split up and which aren't):
expect(getAllNumbersFromString('abc12def3asd45'))
// that would return ['12', '3', '45']);
getAllNumbersFromString('1 fine day 10 bees ate 2 pizza 3.14s')
// that would return ['1', '10', '2', '3', '14']);
getAllNumbersFromString('One fine day ten bees ate two pizza pies')
// that would return []);Check your RegEx notes!
In debug.js we have the fixVariables() function that's trying to log and return a message, but isn't working. Could you please fix this so the tests pass?
In debug.js we have doubleAllItemsPurely(). It's supposed to be pure, but it's not. Can you fix it so the tests pass?
Conversely, we have addChildToParentMutation which is pure, but should mutate the given parent object. Can you correct this so the tests pass?
If you have attempted all the short answers, all the other from-scratch.js functions, and the debug.js functions, give this a try.
Write a function obliterate that takes in an object and removes all of its properties. It should add wasObliterated as true to the object. It should return nothing.