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KwickClips Python · 41 sec · free

Can you reverse a string without a loop?

Short answer. Yes. Use a slice with a step of -1, like day[::-1].

Is the stop index included in a slice?

No. Start is included, but stop is not.

Remember

Start is included
Stop is not included
Step minus one reverses

Can you reverse Sunday with no loop? A slice takes start, stop and step. Zero to three gives S U N. A step of two takes every second letter. Minus one reverses it. Start is included. Stop is not. Minus one reverses.

This clip is from the full lesson: Strings: Indexing, Slicing and String Operations — 8 minutes, with the tables, the quick answers and the whole lesson in text.

Useful for: CBSE Class 11 Computer Science (083), CBSE Class 11 Computer Science (083), CBSE Class 11 Computer Science Essentials (083), CBSE Class 11 Computer Science Essentials (083)

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