Update snippet descriptions

snippets/map_dictionary.md

@@ -1,6 +1,6 @@
 ---
 title: map_dictionary
-tags: list,intermediate
+tags: list,dictionary,intermediate
 ---
 
 Maps the values of a list to a dictionary using a function, where the key-value pairs consist of the original value as the key and the result of the function as the value.
@@ -15,5 +15,5 @@ def map_dictionary(itr, fn):
 ```
 
 ```py
-map_dictionary([1,2,3], lambda x: x * x) # { 1: 1, 2: 4, 3: 9 }
+map_dictionary([1, 2, 3], lambda x: x * x) # { 1: 1, 2: 4, 3: 9 }
 ```

snippets/map_values.md

@@ -1,6 +1,6 @@
 ---
 title: map_values
-tags: dictionary,function,intermediate
+tags: dictionary,intermediate
 ---
 
 Creates a dictionary with the same keys as the provided dictionary and values generated by running the provided function for each value.
@@ -17,6 +17,5 @@ users = {
   'fred': { 'user': 'fred', 'age': 40 },
   'pebbles': { 'user': 'pebbles', 'age': 1 }
 }
-
 map_values(users, lambda u : u['age']) # {'fred': 40, 'pebbles': 1}
 ```

snippets/max_by.md

@@ -1,11 +1,12 @@
 ---
 title: max_by
-tags: math,list,function,beginner
+tags: math,list,beginner
 ---
 
 Returns the maximum value of a list, after mapping each element to a value using the provided function.
 
-- Use `map()` with `fn` to map each element to a value using the provided function, use `max()` to return the maximum value.
+- Use `map()` with `fn` to map each element to a value using the provided function.
+- Use `max()` to return the maximum value.
 
 ```py
 def max_by(lst, fn):

snippets/max_element_index.md

@@ -1,6 +1,6 @@
 ---
 title: max_element_index
-tags: list,beginner
+tags: math,list,beginner
 ---
 
 Returns the index of the element with the maximum value in a list.

snippets/max_n.md

@@ -4,17 +4,18 @@ tags: list,math,beginner
 ---
 
 Returns the `n` maximum elements from the provided list. 
-If `n` is greater than or equal to the provided list's length, then return the original list (sorted in descending order).
 
-- Use `sorted()` to sort the list, `[:n]` to get the specified number of elements.
+- Use `sorted()` to sort the list.
+- Use slice notation to get the specified number of elements.
 - Omit the second argument, `n`, to get a one-element list.
+- If `n` is greater than or equal to the provided list's length, then return the original list (sorted in descending order).
 
 ```py
-def max_n(lst, n=1):
-  return sorted(lst, reverse=True)[:n]
+def max_n(lst, n = 1):
+  return sorted(lst, reverse = True)[:n]
 ```
 
 ```py
 max_n([1, 2, 3]) # [3]
-max_n([1, 2, 3], 2) # [3,2]
+max_n([1, 2, 3], 2) # [3, 2]
 ```

snippets/median.md

@@ -5,7 +5,8 @@ tags: math,beginner
 
 Finds the median of a list of numbers.
 
-- Sort the numbers of the list using `list.sort()` and find the median, which is either the middle element of the list if the list length is odd or the average of the two middle elements if the list length is even.
+- Sort the numbers of the list using `list.sort()`.
+- Find the median, which is either the middle element of the list if the list length is odd or the average of the two middle elements if the list length is even.
 - [`statistics.median()`](https://docs.python.org/3/library/statistics.html#statistics.median) provides similar functionality to this snippet.
 
 ```py
@@ -18,6 +19,6 @@ def median(list):
 ```
 
 ```py
-median([1,2,3]) # 2.0
-median([1,2,3,4]) # 2.5
+median([1, 2, 3]) # 2.0
+median([1, 2, 3, 4]) # 2.5
 ```

snippets/merge.md

@@ -1,17 +1,17 @@
 ---
 title: merge
-tags: list,math,advanced
+tags: list,advanced
 ---
 
 Merges two or more lists into a list of lists, combining elements from each of the input lists based on their positions.
 
-- Use `max` combined with list comprehension to get the length of the longest list in the arguments.
+- Use `max()` combined with a list comprehension to get the length of the longest list in the arguments.
 - Use `range()` in combination with the `max_length` variable to loop as many times as there are elements in the longest list.
 - If a list is shorter than `max_length`, use `fill_value` for the remaining items (defaults to `None`).
 - [`zip()`](https://docs.python.org/3/library/functions.html#zip) and [`itertools.zip_longest()`](https://docs.python.org/3/library/itertools.html#itertools.zip_longest) provide similar functionality to this snippet.
 
 ```py
-def merge(*args, fill_value=None):
+def merge(*args, fill_value = None):
   max_length = max([len(lst) for lst in args])
   result = []
   for i in range(max_length):
@@ -24,5 +24,6 @@ def merge(*args, fill_value=None):
 ```py
 merge(['a', 'b'], [1, 2], [True, False]) # [['a', 1, True], ['b', 2, False]]
 merge(['a'], [1, 2], [True, False]) # [['a', 1, True], [None, 2, False]]
-merge(['a'], [1, 2], [True, False], fill_value = '_') # [['a', 1, True], ['_', 2, False]]
+merge(['a'], [1, 2], [True, False], fill_value = '_')
+# [['a', 1, True], ['_', 2, False]]
 ```

snippets/merge_dictionaries.md

@@ -5,7 +5,7 @@ tags: dictionary,intermediate
 
 Merges two or more dictionaries.
 
-- Create a new `dict()` and loop over `dicts`, using `dictionary.update()` to add the key-value pairs from each one to the result.
+- Create a new `dict` and loop over `dicts`, using `dictionary.update()` to add the key-value pairs from each one to the result.
 
 ```py
 def merge_dictionaries(*dicts):
@@ -17,11 +17,12 @@ def merge_dictionaries(*dicts):
 
 ```py
 ages_one = {
-  "Peter": 10,
-  "Isabel": 11,
+  'Peter': 10,
+  'Isabel': 11,
 }
 ages_two = {
-  "Anna": 9
+  'Anna': 9
 }
-merge_dictionaries(ages_one, ages_two) # { "Peter": 10, "Isabel": 11, "Anna": 9 }
+merge_dictionaries(ages_one, ages_two)
+# { 'Peter': 10, 'Isabel': 11, 'Anna': 9 }
 ```

snippets/min_by.md

@@ -1,11 +1,12 @@
 ---
 title: min_by
-tags: math,list,function,beginner
+tags: math,list,beginner
 ---
 
 Returns the minimum value of a list, after mapping each element to a value using the provided function.
 
-- Use `map()` with `fn` to map each element to a value using the provided function, use `min()` to return the minimum value.
+- Use `map()` with `fn` to map each element to a value using the provided function.
+- Use `min()` to return the minimum value.
 
 ```py
 def min_by(lst, fn):

snippets/min_element_index.md

@@ -1,6 +1,6 @@
 ---
 title: min_element_index
-tags: list,beginner
+tags: math,list,beginner
 ---
 
 Returns the index of the element with the minimum value in a list.

snippets/min_n.md

@@ -4,17 +4,18 @@ tags: list,math,beginner
 ---
 
 Returns the `n` minimum elements from the provided list. 
-If `n` is greater than or equal to the provided list's length, then return the original list (sorted in ascending order).
 
-- Use `sorted() to sort the list, `[:n]` to get the specified number of elements.
+- Use `sorted()` to sort the list.
+- Use slice notation to get the specified number of elements.
 - Omit the second argument, `n`, to get a one-element list.
+- If `n` is greater than or equal to the provided list's length, then return the original list (sorted in ascending order).
 
 ```py
-def min_n(lst, n=1):
-  return sorted(lst, reverse=False)[:n]
+def min_n(lst, n = 1):
+  return sorted(lst, reverse = False)[:n]
 ```
 
 ```py
 min_n([1, 2, 3]) # [1]
-min_n([1, 2, 3], 2) # [1,2]
+min_n([1, 2, 3], 2) # [1, 2]
 ```

snippets/most_frequent.md

@@ -5,11 +5,12 @@ tags: list,beginner
 
 Returns the most frequent element in a list.
 
-- Use `set(list)` to get the unique values in the `list` combined with `max()` to find the element that has the most appearances.
+- Use `set()` to get the unique values in `lst`.
+- Use `max()` to find the element that has the most appearances.
 
 ```py
-def most_frequent(list):
-  return max(set(list), key=list.count)
+def most_frequent(lst):
+  return max(set(lst), key = lst.count)
 ```
 
 ```py

snippets/n_times_string.md

@@ -3,7 +3,7 @@ title: n_times_string
 tags: string,beginner
 ---
 
-Prints out the same string a defined number of times.
+Generates a string with the given string value repeated `n` number of times.
 
 - Repeat the string `n` times, using the `*` operator.
 

snippets/none.md

@@ -1,14 +1,14 @@
 ---
 title: none
-tags: list,function,intermediate
+tags: list,intermediate
 ---
 
-Returns `False` if the provided function returns `True` for at least one element in the list, `True` otherwise.
+Checks if the provided function returns `True` for at least one element in the list.
 
 - Use `all()` and `fn` to check if `fn` returns `False` for all the elements in the list.
 
 ```py
-def none(lst, fn=lambda x: x):
+def none(lst, fn = lambda x: x):
   return all(not fn(x) for x in lst)
 ```
 

snippets/num_to_range.md

@@ -5,11 +5,12 @@ tags: math,beginner
 
 Maps a number from one range to another range.
 
-- Returns `num` mapped between `outMin`-`outMax` from `inMin`-`inMax`.
+- Return `num` mapped between `outMin`-`outMax` from `inMin`-`inMax`.
 
 ```py
 def num_to_range(num, inMin, inMax, outMin, outMax):
-  return outMin + ((float(num - inMin) / float((inMax - inMin))) * (outMax - outMin))
+  return outMin(float(num - inMin) / float(inMax - inMin) * (outMax
+                  - outMin))
 ```
 
 ```py

snippets/offset.md

@@ -5,7 +5,7 @@ tags: list,beginner
 
 Moves the specified amount of elements to the end of the list.
 
-- Use `lst[offset:]` and `lst[:offset]` to get the two slices of the list and combine them before returning.
+- Use slice notation to get the two slices of the list and combine them before returning.
 
 ```py
 def offset(lst, offset):

snippets/pad_number.md

@@ -5,7 +5,7 @@ tags: string,math,beginner
 
 Pads a given number to the specified length.
 
-- Use `str.zfill()` to pad the number to specified length, after converting it to a string.
+- Use `str.zfill()` to pad the number to the specified length, after converting it to a string.
 
 ```py
 def pad_number(n, l):

snippets/palindrome.md

@@ -3,10 +3,10 @@ title: palindrome
 tags: string,intermediate
 ---
 
-Returns `True` if the given string is a palindrome, `False` otherwise.
+Checks if the given string is a palindrome.
 
-- Use `s.lower()` and `re.sub()` to convert to lowercase and  remove non-alphanumeric characters from the given string.
-- Then, compare the new string with its reverse.
+- Use `str.lower()` and `re.sub()` to convert to lowercase and remove non-alphanumeric characters from the given string.
+- Then, compare the new string with its reverse, using slice notation.
 
 ```py
 from re import sub
@@ -18,4 +18,4 @@ def palindrome(s):
 
 ```py
 palindrome('taco cat') # True
-```
+```

snippets/powerset.md

@@ -5,9 +5,9 @@ tags: math,list,advanced
 
 Returns the powerset of a given iterable.
 
-- Use the `list()` constructor to convert the given value to a `list`.
-- Use `range()` and `combinations()` to create a generator the returns all subsets.
-- Use `chain.from_iterable()` and the `list()` constructor to consume the generator and return a list.
+- Use `list()` to convert the given value to a list.
+- Use `range()` and `itertools.combinations()` to create a generator that returns all subsets.
+- Use `itertools.chain.from_iterable()` and `list()` to consume the generator and return a list.
 
 ```py
 from itertools import chain, combinations

snippets/rads_to_degrees.md

@@ -11,10 +11,11 @@ Converts an angle from radians to degrees.
 from math import pi
 
 def rads_to_degrees(rad):
-  return (rad * 180.0) / math.pi
+  return (rad * 180.0) / pi
 ```
 
 ```py
 from math import pi
-rads_to_degrees(math.pi / 2) # 90.0
+
+rads_to_degrees(pi / 2) # 90.0
 ```

snippets/reverse.md

@@ -14,5 +14,5 @@ def reverse(itr):
 
 ```py
 reverse([1, 2, 3]) # [3, 2, 1] 
-reverse("snippet") # "teppins" 
+reverse('snippet') # 'teppins' 
 ```

snippets/reverse_number.md

@@ -1,18 +1,18 @@
 ---
 title: reverse_number
-tags: math,string,intermediate
+tags: math,intermediate
 ---
 
 Reverses a number.
 
-- Use `str()` to convert the number to a string, slice notation to reverse it and `string.replace()` to remove the sign.
-- Use `float()` to convert the result to a number and `copysign()` to copy the original sign.
+- Use `str()` to convert the number to a string, slice notation to reverse it and `str.replace()` to remove the sign.
+- Use `float()` to convert the result to a number and `math.copysign()` to copy the original sign.
 
 ```py
 from math import copysign
 
 def reverse_number(n):
-  return copysign(float(str(n)[::-1].replace('-','')), n)
+  return copysign(float(str(n)[::-1].replace('-', '')), n)
 ```
 
 ```py

snippets/rgb_to_hex.md

@@ -5,12 +5,12 @@ tags: string,math,intermediate
 
 Converts the values of RGB components to a hexadecimal color code.
 
-- Create a placeholder for a zero-padded hexadecimal value using `"{:02X}"`, copy it three times.
+- Create a placeholder for a zero-padded hexadecimal value using `'{:02X}'` and copy it three times.
 - Use `str.format()` on the resulting string to replace the placeholders with the given values.
 
 ```py
 def rgb_to_hex(r, g, b):
-  return ("{:02X}" * 3).format(r, g, b)
+  return ('{:02X}' * 3).format(r, g, b)
 ```
 
 ```py