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+2

reverse

how do you reverse a string?

6/14/2019 10:37:45 AM

Jess Allen

4 Answers

New Answer

+4

It depends what language you use; in python for example you can use string slicing: str1 = "Hello World" print(str1[::-1]) result: dlroW olleH String slices are set using the syntax variableName[startPoint : endPoint : step] str1[::-1] means that you don't set a start or end point so you include the whole string; by setting the step as -1 you move backwards through the word by one character at a time.

+4

I've written up some examples here: https://code.sololearn.com/cikUaykgQjaA It's really flexible because you don't have to include all 3! The square brackets work the same as selecting an index, for example: str = "Hello" str[0] is H str[1] is e... ...so by putting the start:end:step in the square brackets you're explaining that's how you want to move through the indices of the string.

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So the variables dont need to be put in square brackets but the one that your indexing does. Thank you

+1

so you can set a start and end point by putting them after the colon? Do the variables that you set have to be put in square parentheses? Or can they just be by themselves?