added whitespace, updated tests for non-strict mode, fixed undefined vs null and string vs number bugs

README.md

@@ -15,7 +15,7 @@ Usage
 var Storage = require('dom-storage')
 
     // in-file, doesn't call `String(val)` on values (default)
-  , localStorage = new Storage('./db.json', { strict: false })
+  , localStorage = new Storage('./db.json', { strict: false, ws: '  ' })
 
     // in-memory, does call `String(val)` on values (i.e. `{}` becomes `'[object Object]'`
   , sessionStorage = new Storage(null, { strict: true })
@@ -41,6 +41,11 @@ API
   * key(n)
   * length
 
+### Options
+
+  * strict - whether to stringify strictly as text `[Object object]` or as json `{ foo: bar }`.
+  * ws - the whitespace to use saving json to disk. Defaults to `'  '`.
+
 Tests
 ---
 

lib/index.js

@@ -1,4 +1,3 @@
-/*jshint node:true es5:true laxcomma:true laxbreak:true*/
 // http://www.rajdeepd.com/articles/chrome/localstrg/LocalStorageSample.htm
 
 // NOTE:
@@ -31,6 +30,12 @@
     , enumerable: false
     });
 
+    Object.defineProperty(this, '___priv_ws___', {
+      value: opts.ws || '  '
+    , writable: false
+    , enumerable: false
+    });
+
     try {
       db = JSON.parse(fs.readFileSync(path));
     } catch(e) {
@@ -44,13 +49,23 @@
 
   Storage.prototype.getItem = function (key) {
     if (this.hasOwnProperty(key)) {
-      return this.___priv_strict___ && String(this[key]) || this[key];
+      if (this.___priv_strict___) {
+        return String(this[key]);
+      } else {
+        return this[key];
+      }
     }
     return null;
   };
 
   Storage.prototype.setItem = function (key, val) {
-    this[key] = this.___priv_strict___ && String(val) || val;
+    if (val === undefined) {
+      this[key] = null;
+    } else if (this.___priv_strict___) {
+      this[key] = String(val);
+    } else {
+      this[key] = val;
+    }
     this.___save___();
   };
 
@@ -91,7 +106,11 @@
     }
 
     this.___priv_bk___.lock = true;
-    fs.writeFile(this.___priv_bk___.path, JSON.stringify(this), 'utf8', function (e) {
+    fs.writeFile(
+      this.___priv_bk___.path
+    , JSON.stringify(this, null, this.___priv_ws___)
+    , 'utf8'
+    , function (e) {
       self.___priv_bk___.lock = false;
       if (e) {
         return;

package.json

@@ -2,7 +2,7 @@
   "author": "AJ ONeal <coolaj86@gmail.com> (http://coolaj86.info)",
   "name": "dom-storage",
   "description": "W3C DOM Storage (localStorage and sessionStorage) for Node.JS",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "repository": {
     "type": "git",
     "url": "git://github.com/coolaj86/node-dom-storage.git"

tests/test.js

@@ -1,16 +1,15 @@
-/*jshint node:true es5:true laxcomma:true laxbreak:true*/
 (function () {
   "use strict";
 
   var assert = require('assert')
     , fs = require('fs')
-    , Storage = require('dom-storage')
+    , Storage = require('../')
     , dbPath = './db.json'
     ;
 
   function runTest(storage) {
     // should not return prototype properties
-    assert.strictEqual(null, Object.getItem('key'));
+    assert.strictEqual(null, storage.getItem('key'));
     
     assert.strictEqual(0, Object.keys(storage).length);
     assert.strictEqual(0, storage.length);
@@ -20,7 +19,7 @@
     assert.strictEqual(storage.key(0), 'a');
 
     storage.setItem('b', '2');
-    assert.strictEqual(storage.getItem('a'), '1');
+    assert.strictEqual(storage.getItem('a'), 1);
     assert.strictEqual(storage.getItem('b'), '2');
     assert.strictEqual(storage.length, 2);
 
@@ -28,7 +27,7 @@
     assert.strictEqual(storage.getItem('c'), null);
 
     storage.setItem('c');
-    assert.strictEqual(storage.getItem('c'), "undefined");
+    assert.strictEqual(storage.getItem('c'), null);
     assert.strictEqual(storage.length, 3);
 
     storage.removeItem('c');
@@ -42,8 +41,8 @@
   }
 
   function runAll() {
-    var localStorage = new Storage(dbPath)
+    var localStorage = new Storage(dbPath, { strict: false, ws: '  ' })
-      , sessionStorage = new Storage()
+      , sessionStorage = new Storage(null, { strict: false })
       ;
 
     runTest(sessionStorage);