diff --git a/snippets_archive/levenshteinDistance.md b/snippets_archive/levenshteinDistance.md
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----
-title: levenshteinDistance
-tags: algorithm,advanced
----
-
-Calculates the [Levenshtein distance](https://en.wikipedia.org/wiki/Levenshtein_distance) between two strings.
-
-Calculates the number of changes (substitutions, deletions or additions) required to convert `string1` to `string2`. 
-Can also be used to compare two strings as shown in the second example.
-
-```js
-const levenshteinDistance = (string1, string2) => {
-  if (string1.length === 0) return string2.length;
-  if (string2.length === 0) return string1.length;
-  let matrix = Array(string2.length + 1)
-    .fill(0)
-    .map((x, i) => [i]);
-  matrix[0] = Array(string1.length + 1)
-    .fill(0)
-    .map((x, i) => i);
-  for (let i = 1; i <= string2.length; i++) {
-    for (let j = 1; j <= string1.length; j++) {
-      if (string2[i - 1] === string1[j - 1]) {
-        matrix[i][j] = matrix[i - 1][j - 1];
-      } else {
-        matrix[i][j] = Math.min(
-          matrix[i - 1][j - 1] + 1,
-          matrix[i][j - 1] + 1,
-          matrix[i - 1][j] + 1
-        );
-      }
-    }
-  }
-  return matrix[string2.length][string1.length];
-};
-```
-
-```js
-levenshteinDistance('30-seconds-of-code','30-seconds-of-python-code'); // 7
-const compareStrings = (string1,string2) => (100 - levenshteinDistance(string1,string2) / Math.max(string1.length,string2.length));
-compareStrings('30-seconds-of-code', '30-seconds-of-python-code'); // 99.72 (%)
-```
\ No newline at end of file
diff --git a/test/levenshteinDistance.test.js b/test/levenshteinDistance.test.js
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-const {levenshteinDistance} = require('./_30s.js');
-
-test('levenshteinDistance is a Function', () => {
-  expect(levenshteinDistance).toBeInstanceOf(Function);
-});
-test('levenshteinDistance returns the correct results', () => {
-  expect(levenshteinDistance('30-seconds-of-code', '30-seconds-of-python-code')).toBe(7);
-});
-test('levenshteinDistance returns the correct result for 0-length string as first argument', () => {
-  expect(levenshteinDistance('', 'foo')).toBe(3);
-});
-test('levenshteinDistance returns the correct result for 0-length string as second argument', () => {
-  expect(levenshteinDistance('bar', '')).toBe(3);
-});