Playing with Strings

Posted by HARSHITH on Stack Overflow See other posts from Stack Overflow or by HARSHITH
Published on 2010-06-16T03:30:58Z Indexed on 2010/06/16 3:32 UTC
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Given a string and a non-empty word string, return a string made of each char just before and just after every appearance of the word in the string. Ignore cases where there is no char before or after the word, and a char may be included twice if it is between two words.

wordEnds("abcXY123XYijk", "XY") ? "c13i"

wordEnds("XY123XY", "XY") ? "13"

wordEnds("XY1XY", "XY") ? "11"

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