Menu
What's the difference between () vs [] vs {} in Python?
They're collections? How can I tell when to use which?
560
[] (Index brackets) Index brackets ([]) have many uses in Python. First, they are used to define "list literals," allowing you to declare a list and its contents in your program. Index brackets are also used to write expressions that evaluate to a single item within a list, or a single character in a string.
What is the difference between parentheses (), brackets [], and braces {} in a python code? Brackets are used to make lists Braces are used to make dictionary Parenthesis are used to make tuple But for indexing in all of those, only brackets are used.
square bracket is used for indexing an array/list/dict, round brackets are used in function calls.
No difference in JavaScript. The only requisite is that the last quotation mark matches the first quotation mark. In other languages they may have different applications but in JavaScript they are exactly the same.
A tuple is a sequence of items that can't be changed (immutable).
A list is a sequence of items that can be changed (mutable).
A dictionary is a list of key-value pairs, with unique keys (mutable). From Python 2.7/3.1, {} can also represent a set of unique values (mutable).
73
For the difference between lists and tuples see here. See also:
41
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
