JSFiddle - React, Tailwind, and code Playground

JavaScript

var minInt = 3;
var arr = ["notable","tattoo","onclick","statistically"];
var word = "rotation";

var res = [];
if (word.length >= minInt) {
    for (var i = 0; i < arr.length; i++) {
        var comp = arr[i];
        var m = 0;
        if (comp.length >= minInt) {
            for (var l = 0; l < comp.length - minInt + word.length - minInt + 1; l++) {
                var subcomp = l > word.length - minInt ? comp.substring(l - word.length + minInt) : comp;
                var subword = l < word.length - minInt ? word.substring(word.length - minInt - l) : word;
                var minL = Math.min(subcomp.length, subword.length);
                var matches = 0;
                for (var k = 0; k < minL; k++) {
                    if (subcomp[k] === subword[k]) {
                        matches++;
                    }
                }
                if (matches > m) {
                    m = matches;
                }
            }
        }
        res[i] = m >= minInt ? m : null;
    }
}

console.log(res);