serialize-javascript - npm Package Compare versions

Comparing version 1.3.0 to 1.4.0

index.js

@@ -9,7 +9,5 @@ /*
 
-var isRegExp = require('util').isRegExp;
-
 // Generate an internal UID to make the regexp pattern harder to guess.
 var UID                 = Math.floor(Math.random() * 0x10000000000).toString(16);
-var PLACE_HOLDER_REGEXP = new RegExp('"@__(F|R)-' + UID + '-(\\d+)__@"', 'g');
+var PLACE_HOLDER_REGEXP = new RegExp('"@__(F|R|D)-' + UID + '-(\\d+)__@"', 'g');
 
@@ -43,2 +41,3 @@ var IS_NATIVE_CODE_REGEXP = /\{\s*\[native code\]\s*\}/g;
     var regexps   = [];
+    var dates     = [];
 
@@ -52,14 +51,19 @@ // Returns placeholders for functions and regexps (identified by index)
 
-        var type = typeof value;
+        // If the value is an object w/ a toJSON method, toJSON is called before
+        // the replacer runs, so we use this[key] to get the non-toJSONed value.
+        var origValue = this[key];
+        var type = typeof origValue;
 
         if (type === 'object') {
-            if (isRegExp(value)) {
-                return '@__R-' + UID + '-' + (regexps.push(value) - 1) + '__@';
+            if(origValue instanceof RegExp) {
+                return '@__R-' + UID + '-' + (regexps.push(origValue) - 1) + '__@';
             }
 
-            return value;
+            if(origValue instanceof Date) {
+                return '@__D-' + UID + '-' + (dates.push(origValue) - 1) + '__@';
+            }
         }
 
         if (type === 'function') {
-            return '@__F-' + UID + '-' + (functions.push(value) - 1) + '__@';
+            return '@__F-' + UID + '-' + (functions.push(origValue) - 1) + '__@';
         }
@@ -91,10 +95,14 @@
 
-    if (functions.length === 0 && regexps.length === 0) {
+    if (functions.length === 0 && regexps.length === 0 && dates.length === 0) {
         return str;
     }
 
-    // Replaces all occurrences of function and regexp placeholders in the JSON
-    // string with their string representations. If the original value can not
-    // be found, then `undefined` is used.
+    // Replaces all occurrences of function, regexp and date placeholders in the
+    // JSON string with their string representations. If the original value can
+    // not be found, then `undefined` is used.
     return str.replace(PLACE_HOLDER_REGEXP, function (match, type, valueIndex) {
+        if (type === 'D') {
+            return "new Date(\"" + dates[valueIndex].toISOString() + "\")";
+        }
+
         if (type === 'R') {
@@ -101,0 +109,0 @@ return regexps[valueIndex].toString();

package.json

 {
   "name": "serialize-javascript",
-  "version": "1.3.0",
+  "version": "1.4.0",
   "description": "Serialize JavaScript to a superset of JSON that includes regular expressions and functions.",
@@ -5,0 +5,0 @@ "main": "index.js",

README.md

 Serialize JavaScript
 ====================
 
-Serialize JavaScript to a _superset_ of JSON that includes regular expressions and functions.
+Serialize JavaScript to a _superset_ of JSON that includes regular expressions, dates and functions.
 
@@ -14,3 +14,3 @@ [![npm Version][npm-badge]][npm]
 
-You're probably wondering: **What about `JSON.stringify()`!?** We've found that sometimes we need to serialize JavaScript **functions** and **regexps**. A great example is a web app that uses client-side URL routing where the route definitions are regexps that need to be shared from the server to the client.
+You're probably wondering: **What about `JSON.stringify()`!?** We've found that sometimes we need to serialize JavaScript **functions**, **regexps** or **dates**. A great example is a web app that uses client-side URL routing where the route definitions are regexps that need to be shared from the server to the client.
 
@@ -40,2 +40,3 @@ The string returned from this package's single export function is literal JavaScript which can be saved to a `.js` file, or be embedded into an HTML document by making the content of a `<script>` element. **HTML charaters and JavaScript line terminators are escaped automatically.**
     undef: undefined,
+    date: new Date("Thu, 28 Apr 2016 22:02:17 GMT"),
 
@@ -50,3 +51,3 @@ fn: function echo(arg) { return arg; },
 ```js
-'{"str":"string","num":0,"obj":{"foo":"foo"},"arr":[1,2,3],"bool":true,"nil":null,"fn":function echo(arg) { return arg; },"re":/([^\\s]+)/g}'
+'{"str":"string","num":0,"obj":{"foo":"foo"},"arr":[1,2,3],"bool":true,"nil":null,date:new Date("2016-04-28T22:02:17.156Z"),"fn":function echo(arg) { return arg; },"re":/([^\\s]+)/g}'
 ```
@@ -94,2 +95,14 @@
 
+## Deserializing
+
+For some use cases you might also need to deserialize the string. This is explicitely not part of this module. However, you can easily write it yourself:
+
+```js
+function deserialize(serializedJavascript){
+  return eval('(' + serializedJavascript + ')');
+}
+```
+
+**Note:** Don't forget the parentheses around the serialized javascript, as the opening bracket `{` will be considered to be the start of a body.
+
 ## License
@@ -96,0 +109,0 @@

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10985

increased by10%

Lines of code

93

increased by9.41%

Number of lines in readme file

119

increased by12.26%

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