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imteekay · Dec 24, 2023 · 27b1bdc · 27b1bdc
1 parent 50c3e40
commit 27b1bdc
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/coding_interviews/algoexpert/caesar-cipher-encryptor/caesar-cipher-encryptor.js b/coding_interviews/algoexpert/caesar-cipher-encryptor/caesar-cipher-encryptor.js
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+// Runtime: O(N), N = number of characters
+// Space: O(N)
+
+function getChar(char, key) {
+  let charCode = ((char.charCodeAt() - 97 + key) % 26) + 97;
+  return String.fromCharCode(charCode);
+}
+
+function caesarCipherEncryptor(string, key) {
+  return [...string].map((char) => getChar(char, key)).join('');
+}