MaxGraey_search_bytes_solution_II

gistfile1.txt

function isSubset(haystack, needle) {
    return new Promise(function(resolve, reject) {
        let n = needle.length,
            m = haystack.length,
            d = m - n;
        outer: for (let i = 0; i <= d; ++i) {
            for (let j = 0; j < n; ++j) {
                if (needle[j] !== haystack[i + j]) {
                    continue outer
                }
            }
            resolve("Present");
        }
        resolve("Absent")
    });
}
var buffer_1 = new ArrayBuffer(14500);
var buffer_2 = new ArrayBuffer(1000000);
var needle = new Uint8Array(buffer_1);
var haystack = new Uint8Array(buffer_2);
needle.fill(111);
haystack.fill(111);
if (needle_length < 1 || needle_length > haystack_length) {
    alert("Needle length must be greater than zero and less than haystack length");
} else {
    isSubset(haystack, needle)
        .then(function(result) {
            console.log("Result: " + result);
        })
        .catch(function() {
            console.log("Error");
        });
}

Inspired by this Tweet https://twitter.com/MaxGraey/status/1330149771047276547