Set
A set is an unordered collection of unique elements, similar to the Set in JavaScript. It is commonly used for removing duplicates.
Task
Split the text into words by spaces, remove duplicate words, and sort them.
JavaScript implementation
const text = "apple banana cherry apple banana";
const words = text.split(" ");
const uniqueWords = [...new Set(words)];
uniqueWords.sort();
console.log(uniqueWords);
Python implementation
text = "apple banana cherry apple banana"
words = text.split(" ")
unique_words = set(words)
sorted_words = sorted(unique_words)
print(sorted_words)
Code Highlight
- Python uses
set()to create a set, while JavaScript usesnew Set()to create a set.
Difference Quick View
| Feature | JavaScript | Python |
|---|---|---|
| Create a set | let mySet = new Set() | my_set = set() |
| Add an element | mySet.add(el) | my_set.add(el) |
| Check size | mySet.size | len(my_set) |
| Check if empty | mySet.size === 0 | len(my_set) == 0 |
| Delete an element | mySet.delete(el) | my_set.remove(el) |
| Clear the set | mySet.clear() | my_set.clear() |
| Check if a member exists | let exist = mySet.has(el) | exist = el in my_set |
| Convert set to array | let myArr = [...mySet] | my_list = list(my_set) |
| Union of sets | - | my_set.union(another_set) |
| Intersection of sets | - | my_set.intersection(another_set) |