Merge pull request #195 from 30-seconds/tag-update

Cleanup utility and object tags
This commit is contained in:
Angelos Chalaris
2020-04-07 20:02:42 +03:00
committed by GitHub
9 changed files with 32 additions and 33 deletions

View File

@ -1,6 +1,6 @@
---
title: cast_list
tags: utility,list,beginner
tags: list,beginner
---
Casts the provided value as a list if it's not one.

View File

@ -1,6 +1,6 @@
---
title: function_name
tags: utility,intermediate
title: check_prop
tags: function,intermediate
---
Given a predicate function, `fn`, and a `prop` string, this curried function will then take an object to inspect by calling the property and passing it to the predicate.

View File

@ -1,11 +1,11 @@
---
title: group_by
tags: list,object,intermediate
tags: list,dictionary,intermediate
---
Groups the elements of a list based on the given function.
Use `map()` and `fn` to map the values of the list to the keys of an object.
Use `map()` and `fn` to map the values of the list to the keys of a dictionary.
Use list comprehension to map each element to the appropriate `key`.
```py

View File

@ -1,6 +1,6 @@
---
title: keys_only
tags: object,list,beginner
tags: dictionary,list,beginner
---
Returns a flat list of all the keys in a flat dictionary.

View File

@ -1,6 +1,6 @@
---
title: longest_item
tags: list,string,utility,intermediate
tags: list,string,intermediate
---
Takes any number of iterable objects or objects with a length property and returns the longest one.

View File

@ -1,21 +1,20 @@
---
title: map_object
tags: list,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.
Use a `for` loop to iterate over the list's values, assigning the values produced by `fn` to each key of the dictionary.
```py
def map_object(itr, fn):
ret = {}
for x in itr:
ret[x] = fn(x)
return ret
```
```py
map_object([1,2,3], lambda x: x * x) # { 1: 1, 2: 4, 3: 9 }
```
---
title: map_dictionary
tags: list,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.
Use a `for` loop to iterate over the list's values, assigning the values produced by `fn` to each key of the dictionary.
```py
def map_dictionary(itr, fn):
ret = {}
for x in itr:
ret[x] = fn(x)
return ret
```
```py
map_dictionary([1,2,3], lambda x: x * x) # { 1: 1, 2: 4, 3: 9 }
```

View File

@ -1,11 +1,11 @@
---
title: map_values
tags: object,function,intermediate
tags: dictionary,function,intermediate
---
Creates an object with the same keys as the provided object and values generated by running the provided function for each value.
Creates a dictionary with the same keys as the provided dictionary and values generated by running the provided function for each value.
Use `dict.keys()` to iterate over the object's keys, assigning the values produced by `fn` to each key of a new object.
Use `dict.keys()` to iterate over the dictionary's keys, assigning the values produced by `fn` to each key of a new dictionary.
```py
def map_values(obj, fn):

View File

@ -1,6 +1,6 @@
---
title: spread
tags: list,utility,intermediate
tags: list,intermediate
---
Flattens a list, by spreading its elements into a new list.

View File

@ -1,6 +1,6 @@
---
title: values_only
tags: object,list,beginner
tags: dictionary,list,beginner
---
Returns a flat list of all the values in a flat dictionary.