Sync

Task/Rot-13/JavaScript/rot-13-1.js

@@ -0,0 +1,6 @@
+function rot13(c) {
+    return c.replace(/([a-m])|([n-z])/ig, function($0,$1,$2) {
+        return String.fromCharCode($1 ? $1.charCodeAt(0) + 13 : $2 ? $2.charCodeAt(0) - 13 : 0) || $0;
+    });
+}
+rot13("ABJURER nowhere") // NOWHERE abjurer

Task/Rot-13/JavaScript/rot-13-2.js

@@ -0,0 +1,59 @@
+function rot13(value){
+  if (!value)
+    return "";
+
+  function singleChar(c) {
+    if (c.toUpperCase() < "A" || c.toUpperCase() > "Z")
+      return c;
+
+    if (c.toUpperCase() <= "M")
+      return String.fromCharCode(c.charCodeAt(0) + 13);
+
+    return String.fromCharCode(c.charCodeAt(0) - 13);
+  }
+
+  return _.map(value.split(""), singleChar).join("");
+}
+
+describe("Rot-13", function() {
+  it("Given nothing will return nothing", function() {
+    expect(rot13()).toBe("");
+  });
+
+  it("Given empty string will return empty string", function() {
+    expect(rot13("")).toBe("");
+  });
+
+  it("Given A will return N", function() {
+    expect(rot13("A")).toBe("N");
+  });
+
+  it("Given B will return O", function() {
+    expect(rot13("B")).toBe("O");
+  });
+
+  it("Given N will return A", function() {
+    expect(rot13("N")).toBe("A");
+  });
+
+  it("Given Z will return M", function() {
+    expect(rot13("Z")).toBe("M");
+  });
+
+  it("Given ZA will return MN", function() {
+    expect(rot13("ZA")).toBe("MN");
+  });
+
+  it("Given HELLO will return URYYB", function() {
+    expect(rot13("HELLO")).toBe("URYYB");
+  });
+
+  it("Given hello will return uryyb", function() {
+    expect(rot13("hello")).toBe("uryyb");
+  });
+
+
+  it("Given hello1 will return uryyb1", function() {
+    expect(rot13("hello1")).toBe("uryyb1");
+  });
+});