add constructor to prototype

.editorconfig

@@ -0,0 +1,6 @@
+root = true
+
+[*.js]
+charset = utf-8
+indent_style = space
+indent_size = 2

HISTORY.md

@@ -1,6 +1,9 @@
 History
 =======
 
+## 0.1.4
+* Add constructor definition.  new plugin().constructor.name === 'StatsWriterPlugin';
+
 ## 0.1.3
 
 * Add `opts.compiler` to transform function.

lib/stats-writer-plugin.js

@@ -43,45 +43,50 @@
  *
  * @api public
  */
-var StatsWriterPlugin = function (opts) {
+function StatsWriterPlugin(opts) {
   opts = opts || {};
   this.opts = {};
   this.opts.filename = opts.filename || "stats.json";
   this.opts.fields = typeof opts.fields !== "undefined" ? opts.fields : ["assetsByChunkName"];
   this.opts.transform = opts.transform || function (data) { return JSON.stringify(data, null, 2); };
-};
-
-StatsWriterPlugin.prototype.apply = function (compiler) {
-  var self = this;
-  compiler.plugin("emit", function (curCompiler, callback) {
-    // Get stats.
-    // **Note**: In future, could pass something like `{ showAssets: true }`
-    // to the `getStats()` function for more limited object returned.
-    var stats = curCompiler.getStats().toJson();
+}
 
-    // Filter to fields.
-    if (self.opts.fields) {
-      stats = self.opts.fields.reduce(function (memo, key) {
-        memo[key] = stats[key];
-        return memo;
-      }, {});
-    }
+StatsWriterPlugin.prototype = {
+  constructor: StatsWriterPlugin,
 
-    // Transform to string.
-    var statsStr = self.opts.transform(stats, {
-      compiler: curCompiler
-    });
+  apply: function (compiler) {
+    var self = this;
+    compiler.plugin("emit", function (curCompiler, callback) {
+      // Get stats.
+      // **Note**: In future, could pass something like `{ showAssets: true }`
+      // to the `getStats()` function for more limited object returned.
+      var stats = curCompiler.getStats().toJson();
 
-    curCompiler.assets[self.opts.filename] = {
-      source: function () {
-        return statsStr;
-      },
-      size: function () {
-        return statsStr.length;
+      // Filter to fields.
+      if (self.opts.fields) {
+        stats = self.opts.fields.reduce(function (memo, key) {
+          memo[key] = stats[key];
+          return memo;
+        }, {});
       }
-    };
-    callback();
-  });
+
+      // Transform to string.
+      var statsStr = self.opts.transform(stats, {
+        compiler: curCompiler
+      });
+
+      curCompiler.assets[self.opts.filename] = {
+        source: function () {
+          return statsStr;
+        },
+        size: function () {
+          return statsStr.length;
+        }
+      };
+
+      callback();
+    });
+  }
 };
 
 module.exports = StatsWriterPlugin;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "webpack-stats-plugin",
-  "version": "0.1.3",
+  "version": "0.1.4",
   "description": "Webpack stats plugin",
   "main": "webpack-stats-plugin.js",
   "dependencies": {},