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KMP.html
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KMP.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
</body>
<script>
function find(source, pattern) {
const table = new Array(pattern.length).fill(0)
let k = 0
for (let p = 1; p < pattern.length; p ++) {
if (pattern[p] === pattern[k]) {
k ++
} else {
k = 0
}
table[p] = k
}
let p = 0
for (let i = 0; i < source.length; i ++) {
if (source[i] === pattern[p]) {
p ++
} else {
while(source[i] !== pattern[p] && p > 0) {
p = table[p - 1]
}
if (source[i] === pattern[p]) {
p ++
} else {
p = 0
}
}
}
if (p === pattern.length) {
return true
}
return false
}
</script>
</html>