Methods
adamAndEveApples(peopleWithApples) → {number}
Takes in an object with peoples names as the keys and
the number of apples they have as values.
Should return the total number of apples for Adam and Eve.
Parameters:
| Name | Type | Description |
|---|---|---|
peopleWithApples |
Object | apple object with names and numbers |
- Source:
Returns:
Sum of Adam and Eve's apples.
- Type
- number
addsCountry(countriesAndCapitals, country, capital) → {Object}
Takes in an object of countries and their capitals
and a country and capital. The country and capital should be
added to the object.
Return the original object.
Parameters:
| Name | Type | Description |
|---|---|---|
countriesAndCapitals |
Object | countries and capitals |
country |
string | |
capital |
string |
- Source:
Returns:
countriesAndCapitals
- Type
- Object
addsJamaica(countriesAndCapitals) → {Object}
Takes in an object of countries and their capitals
and adds the key value pair "Jamaica" and "Kingston"
Return the original object.
Parameters:
| Name | Type | Description |
|---|---|---|
countriesAndCapitals |
Object | countries and capitals |
- Source:
Returns:
countriesAndCapitals now with Jamaica
- Type
- Object
appleCount(peopleWithApples, name) → {number}
Takes in an object with peoples names as the keys and
the number of apples they have as values. Also takes in the argument of someone's
name. Return the number
of apples that the person passed in has.
If the person does not exist in the object it should return 0.
Parameters:
| Name | Type | Description |
|---|---|---|
peopleWithApples |
Object | |
name |
string | name of person |
- Source:
Returns:
The number of apples name has.
Is there a difference between using string notation vs
bracket notation? Try them both.
- Type
- number
appleSet(peopleWithApples, name, appleCount) → {Object}
Takes in an object with peoples names as the keys and
the number of apples they have as values. Also takes in the argument of someone's
name, and the argument newNumberApple .
Update the object to have the name pointing to the newNumberApple
Parameters:
| Name | Type | Description |
|---|---|---|
peopleWithApples |
Object | apple object with names and numbers |
name |
string | name of person |
appleCount |
number | number of apples |
- Source:
Returns:
The updated object.
- Type
- Object
appleSetToZero(peopleWithApples) → {Object}
Takes in an object with peoples names as the keys and
the number of apples they have as values.
Reset all the apple values to 0 and return the object.
Parameters:
| Name | Type | Description |
|---|---|---|
peopleWithApples |
Object | apple object with names and numbers |
- Source:
Returns:
Object with values set to zero.
- Type
- Object
appleSum(peopleWithApples) → {number}
Takes in an object with peoples names as the keys and
the number of apples they have as values.
Returns the sum of all apples
Parameters:
| Name | Type | Description |
|---|---|---|
peopleWithApples |
Object | apple object with names and numbers |
- Source:
Returns:
Sum of all apples
- Type
- number
authorScores(authors) → {Object}
Takes an array of arrays. First element of inner array is authorName, second element
of inner array is score.
Return an object where the keys are the authorNames and
the values are the scores.
Parameters:
| Name | Type | Description |
|---|---|---|
authors |
Array.<Array> | array of arrays [["Mark Twain", 8.9], ["Nathaniel Hawthorne", 5.1]] |
- Source:
Returns:
{"Mark Twain": 8.9, "Nathaniel Hawthorne": 5.1}
- Type
- Object
bestScore(peopleAndScores) → {string}
You are given an array of objects.
Each object in the array describes the score of a person.
Find the person with the best score and return their full name.
Parameters:
| Name | Type | Description |
|---|---|---|
peopleAndScores |
Array.<Object> | array of objects [ { firstName: "Calvin", lastName: "Newton", score: 13} ...] |
- Source:
Returns:
The full name of person with best score.
- Type
- string
countAandE(str) → {Object}
Takes in a string and returns an object with
the number of a's and the number of e's.
Parameters:
| Name | Type | Description |
|---|---|---|
str |
string | "A good snake" |
- Source:
Returns:
Counts of e and a. {a: 2, e: 1}
- Type
- Object
countOccurance(str) → {Object}
Takes in a string and returns an object with
the count occurrence of each character.
Parameters:
| Name | Type | Description |
|---|---|---|
str |
string | "A good snake" |
- Source:
Returns:
Counts of all characters: {a: 2, g: 1, o: 2, d:1, " ": 2, s: 1, n:1, k:1, e: 1}
- Type
- Object
countOccuranceNoSpaces(str) → {Object}
Takes in a string and returns an object with
the count occurrence of each character.
Skips spaces
Parameters:
| Name | Type | Description |
|---|---|---|
str |
string | "A good snake" |
- Source:
Returns:
Counts all characters except spaces {a: 2, g: 1, o: 2, d:1, s: 1, n:a, k:1, e: 1}
- Type
- Object
cubeObj() → {Object}
Returns an object where the keys are numbers 1 through 20,
and their respective values is key cubed (num * num * num).
- Source:
Returns:
{1: 1, 2: 8, 3: 27...}
- Type
- Object
deleteKey(key) → {Object}
Takes in an object and a key.
It should delete the key value pair from the object and
return the changed object.
Parameters:
| Name | Type | Description |
|---|---|---|
|
Object | |
key |
string |
- Source:
Returns:
The Object without the key.
- Type
- Object
eveAppleCount(peopleWithApples) → {number}
Takes in an object with peoples names as the keys and
the number of apples they have as values. Return the number
of apples that "Eve" has.
Parameters:
| Name | Type | Description |
|---|---|---|
peopleWithApples |
Object |
- Source:
Returns:
The number of apples Eve has.
- Type
- number
eveAppleSet(peopleWithApples, appleCount) → {Object}
Takes in an object with peoples names as the keys and
the number of apples they have as values.
Also takes in a new number of apples for Eve.
Reassign her number of apples to the new value and then return
the original object.
Parameters:
| Name | Type | Description |
|---|---|---|
peopleWithApples |
Object | |
appleCount |
number | new number of apples |
- Source:
Returns:
The updated object.
- Type
- Object
getCapital(countriesAndCapitals, country) → {string}
Takes in an object of countries and their capitals.
Takes in a country
Return the capital of country given.
Parameters:
| Name | Type | Description |
|---|---|---|
countriesAndCapitals |
Object | countries and capitals |
country |
string |
- Source:
Returns:
Capital of country
- Type
- string
mostCommonElement(array) → {number|string}
Takes in an array and returns the most common element.
Parameters:
| Name | Type | Description |
|---|---|---|
array |
Array | array of elements |
- Source:
Returns:
Most common element
- Type
- number | string
propertyCount(obj) → {number}
Takes in an object and returns the number of
properties it has.
Parameters:
| Name | Type | Description |
|---|---|---|
obj |
Object |
- Source:
Returns:
Number of properties.
- Type
- number
russiaCapital(countriesAndCapitals) → {string}
Takes in an object of countries and their capitals.
Return the capital of Russia.
Parameters:
| Name | Type | Description |
|---|---|---|
countriesAndCapitals |
Object | countries and capitals |
- Source:
Returns:
Capital of Russia
- Type
- string
updateList(pairs, arr) → {Array.<string>}
Takes in an object and an array.
Returns a new array.
If the element in the array is a key in the object the new
array should have the value in its place. Otherwise just use the array element.
Exp Input:
{"Ed Sheeran": "guitar", "Ray Charles": "piano"}
["Ed Sheeran", "John Lennon", "Ray Charles"]
Output:
["guitar", "John Lennon", "piano"]
Parameters:
| Name | Type | Description |
|---|---|---|
pairs |
Object | |
arr |
Array.<string> |
- Source:
Returns:
Elements or their pair values.
- Type
- Array.<string>