Lesson 22 of 55
8 mins readPython Array Slices & Range Operators
In Plain English
Array slicing extracts a subset of elements into a new list. Because multiple elements are returned, slices use the `@` sigil (e.g. `@items[0, 2, 4]`).
Deep Dive: How It Works
Slice Sigil (@): Extracting multiple elements produces a list, so use `@arr[...]`.
Range Slicing: `@arr[1..3]` extracts items from index 1 through 3.
Slice Assignment: `@arr[0, 1] = ("new1", "new2")` updates multiple positions at once.
Core Rules to Remember
Array Slice Sigil: `@array[1, 3]` uses `@` because the result is a list.
Range Operator (..): `(1..10)` generates sequential integers or letters (`"a".."z"`).
Live Interactive Example
Hit Run Code to see it liveExtracting Array Slices
Python 3.12
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Output Console
Click "Run Code" to view the rendered output.
How it works: Array slices cleanly pulled out the selected index ranges.
Your Turn: Micro Challenge
No pressure! Edit the starter code below and test your solution with instant feedback.
Micro Exercise
Extract Weekend Days
- Declare `my @days = qw(Mon Tue Wed Thu Fri Sat Sun);`
- Extract weekend days using slice `@days[5, 6]` into `my @weekend`.
- Print `"Weekend: " . join(" & ", @weekend) . "\n"`.
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Sandbox Output
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