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Tagged with syntax

7 cards

Python Medium Theory

Conditional statements, ternary expressions, and match-case basics

Python uses `if`/`elif`/`else` for general branching, a ternary expression for concise value selection, and `match-case` for structural pattern matching in newer versions.

Use ternary for small expressions only
match-case compares shapes and patterns
Readable branching beats clever branching

#control-flow #python #syntax

Conditional statements, ternary expressions, and match-case basics

Python Easy Theory

Dict comprehensions, set comprehensions, and generator expressions

Python has comprehension syntax for lists, dicts, and sets, plus generator expressions for lazy pipelines.

Dict comprehensions build key-value mappings
Set comprehensions deduplicate naturally
Generator expressions avoid building full collections

#comprehensions #python #syntax

Dict comprehensions, set comprehensions, and generator expressions

Python Easy Theory

String formatting and f-strings

Python supports old `%` formatting, `str.format`, and f-strings, with f-strings usually being the clearest modern default.

f-strings embed expressions directly
format works well for reusable templates
% formatting still appears in older code

#python #strings #syntax

String formatting and f-strings

Python Easy Theory

Tuple packing, unpacking, and singleton tuples

Tuples support packing multiple values together and unpacking them cleanly into separate names.

Commas create tuples
A singleton tuple needs a trailing comma
Unpacking improves readability

#python #syntax #tuples

Tuple packing, unpacking, and singleton tuples

Python Easy Theory

What is a decorator?

A decorator wraps another callable to add behavior without changing the original function body.

Starts with a callable
Usually returns a wrapper
Common for logging, auth, caching

#functions #python #syntax

What is a decorator?

Python Easy Theory

What is list comprehension in Python?

List comprehensions build lists concisely from an iterable, often replacing small loops plus append calls.

Compact loop expression
Can include filter condition
Readable only when kept simple

#collections #python #syntax

What is list comprehension in Python?

JavaScript Easy Theory

Spread operator, rest operator, and destructuring assignment in JavaScript

Spread expands values, rest collects remaining values, and destructuring pulls parts of arrays or objects into variables.

Spread copies one level deep
Rest gathers leftovers
Destructuring works with arrays and objects

#arrays #javascript #objects #syntax

Spread operator, rest operator, and destructuring assignment in JavaScript