Oleksii Trekhleb | Javascript algorithms (Knuth – morris – pratt algorithm)
This is a series of books diving deep into the core mechanisms of the JavaScript language.
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The Knuth – Morris – Pratt string searching algorithm (or KMP algorithm) searches for occurrences of a word W within a main text string T by employing the observation that when a mismatch occurs, the word itself embodies sufficient information to determine where the next match could begin, thus bypassing re-examination of previously matched characters.
Complexity
Time:
O(|W| + |T|)(much faster comparing to trivialO(|W| |T|))Space:
O(|W|)
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