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Merge pull request #93 from thejoycekung/joyce/python_list_comp

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Move list comp example to Python lists section from regex
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surister 2020-07-19 09:10:44 +02:00 committed by GitHub
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README.md
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@ -5212,6 +5212,29 @@ list(zip(nums, letters))
<summary>What is List Comprehension? Is it better than a typical loop? Why? Can you demonstrate how to use it?</summary><br><b>
</b></details>
<details>
<summary>You have the following list: <code>[{'name': 'Mario', 'food': ['mushrooms', 'goombas']}, {'name': 'Luigi', 'food': ['mushrooms', 'turtles']}]</code>
Extract all type of foods. Final output should be: {'mushrooms', 'goombas', 'turtles'}</summary><br><b>
```
brothers_menu = \
[{'name': 'Mario', 'food': ['mushrooms', 'goombas']}, {'name': 'Luigi', 'food': ['mushrooms', 'turtles']}]
# "Classic" Way
def get_food(brothers_menu) -> set:
temp = []
for brother in brothers_menu:
for food in brother['food']:
temp.append(food)
return set(temp)
# One liner way (Using list comprehension)
set([food for bro in x for food in bro['food']])
```
</b></details>
#### Dictionaries
<details>
@ -5344,29 +5367,6 @@ Using the re module
<summary>How to find all the IP addresses in a variable? How to find them in a file?</summary><br><b>
</b></details>
<details>
<summary>You have the following list: <code>[{'name': 'Mario', 'food': ['mushrooms', 'goombas']}, {'name': 'Luigi', 'food': ['mushrooms', 'turtles']}]</code>
Extract all type of foods. Final output should be: {'mushrooms', 'goombas', 'turtles'}</summary><br><b>
```
brothers_menu = \
[{'name': 'Mario', 'food': ['mushrooms', 'goombas']}, {'name': 'Luigi', 'food': ['mushrooms', 'turtles']}]
# "Classic" Way
def get_food(brothers_menu) -> set:
temp = []
for brother in brothers_menu:
for food in brother['food']:
temp.append(food)
return set(temp)
# One liner way (Using list comprehension)
set([food for bro in x for food in bro['food']])
```
</b></details>
#### Python Strings
<details>