support array of strings

src/index.js

@@ -51,13 +51,13 @@ class Redactyl {
   }
 
   redact(json) {
-    let isObject = this.isObject(json);
+    const isObject = this.isObject(json);
 
     if (!isObject && !Array.isArray(json)) {
-      throw new TypeError('A valid JSON object must be specified');
+      return json;
     }
 
-    let redacted = JSON.parse(JSON.stringify(json, this.replacer));
+    const redacted = JSON.parse(JSON.stringify(json, this.replacer));
 
     for (let prop in redacted) {
       if (this.properties.includes(prop)) {

test/redactyl.spec.js

@@ -85,15 +85,9 @@ describe('Redactyl test suite', function () {
     let properties = [ 'apiKey', 'password', 'phone' ];
     let redactyl = new Redactyl({ 'properties': properties });
 
-    let error = null;
-    try {
-      redactyl.redact('invalid');
-    } catch (err) {
-      error = err;
-    }
+    const redacted = redactyl.redact('any string wLYm0Vthq');
 
-    expect(error).to.not.equal(null);
-    expect(error.constructor.name).to.equal('TypeError');
+    expect(redacted).to.equal('any string wLYm0Vthq');
   });
 
   it('Should redact shallow JSON', async function () {
@@ -246,6 +240,32 @@ describe('Redactyl test suite', function () {
     });
   });
 
+  it('Should redact array of strings', async function () {
+    const properties = [ 'sensitiveData' ];
+    const redactyl = new Redactyl({ 'properties': properties });
+
+    const json = {
+      sensitiveData: [
+        'RxcKQr3',
+        'jvicULO'
+      ],
+      nonSensitive: [
+        'J2AZps8w',
+        'YVTr9O1'
+      ]
+    };
+
+    const redacted = redactyl.redact(json);
+
+    expect(redacted).to.deep.equal({
+      sensitiveData: DEFAULT_TEXT,
+      nonSensitive: [
+        'J2AZps8w',
+        'YVTr9O1'
+      ]
+    });
+  });
+
   it('Should fail to set a custom replacer function, function not passed as options', async function () {
     const options = { 'replacer': ['not', 'a', 'function'] };