lix-website/themes/lix/assets/bootstrap/node_modules/fastest-levenshtein/test.js
2024-04-26 22:49:34 -06:00

56 lines
1.6 KiB
JavaScript

var _a = require("./mod.js"), closest = _a.closest, distance = _a.distance;
var levenshtein = function (a, b) {
if (a.length === 0) {
return b.length;
}
if (b.length === 0) {
return a.length;
}
if (a.length > b.length) {
var tmp = a;
a = b;
b = tmp;
}
var row = [];
for (var i = 0; i <= a.length; i++) {
row[i] = i;
}
for (var i = 1; i <= b.length; i++) {
var prev = i;
for (var j = 1; j <= a.length; j++) {
var val = 0;
if (b.charAt(i - 1) === a.charAt(j - 1)) {
val = row[j - 1];
}
else {
val = Math.min(row[j - 1] + 1, prev + 1, row[j] + 1);
}
row[j - 1] = prev;
prev = val;
}
row[a.length] = prev;
}
return row[a.length];
};
var makeid = function (length) {
var result = "";
var characters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
var charactersLength = characters.length;
for (var i = 0; i < length; i++) {
result += characters.charAt(Math.floor(Math.random() * charactersLength));
}
return result;
};
for (var i = 0; i < 10000; i++) {
var rnd_num1 = (Math.random() * 1000) | 0;
var rnd_num2 = (Math.random() * 1000) | 0;
var rnd_string1 = makeid(rnd_num1);
var rnd_string2 = makeid(rnd_num2);
var actual = distance(rnd_string1, rnd_string2);
var expected = levenshtein(rnd_string1, rnd_string2);
console.log(i);
if (actual !== expected) {
console.log("fail");
}
}