Substring

Subsequence of the symbols in a string, where the order of the elements is preserved

In formal language theory and computer science, a substring is a contiguous sequence of characters within a string. For instance, "the best of" is a substring of "It was the best of times". In contrast, "Itwastimes" is a subsequence of "It was the best of times", but not a substring.

Nº Q2626534 ★

Common · Knowledge

Substring

Subsequence of the symbols in a string, where the order of the elements is preserved

In formal language theory and computer science, a substring is a contiguous sequence of characters within a string. For instance, "the best of" is a substring of "It was the best of times". In contrast, "Itwastimes" is a subsequence of "It was the best of times", but not a substring.

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From Wikipedia

In formal language theory and computer science, a substring is a contiguous sequence of characters within a string. For instance, "the best of" is a substring of "It was the best of times". In contrast, "Itwastimes" is a subsequence of "It was the best of times", but not a substring. Prefixes and suffixes are special cases of substrings. A prefix of a string S {\displaystyle S} is a substring of S {\displaystyle S} that occurs at the beginning of S {\displaystyle S} ; likewise, a suffix of a string S {\displaystyle S} is a substring that occurs at the end of S {\displaystyle S} . The substrings of the string "apple" would be: "a", "ap", "app", "appl", "apple", "p", "pp", "ppl", "pple", "pl", "ple", "l", "le" "e", "" (note the empty string at the end).

Text: Wikipédia, CC BY-SA 4.0. · Image: Turbo pencil (CC0) ·

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