use class syntax in stream-view

vnys · vnys · commit c6aaca4a20e4 · 2016-07-22T22:12:18.000+02:00
- Add 'use strict' to view.js
- Remove the harmony flag from README
- Remove iojs and add node 4 and 6 to .travis.yml
diff --git a/.travis.yml b/.travis.yml
@@ -1,4 +1,4 @@
 node_js:
-- "0.12"
-- "iojs"
+- "4"
+- "6"
 language: node_js
diff --git a/stream-view/README.md b/stream-view/README.md
@@ -1,10 +1,10 @@
 # stream-view
 
-This is a "Hello World" application, using a view that inherits from a Readable stream. 
+This is a "Hello World" application, using a view that inherits from a Readable stream.
 
 To invoke, the following command begins listening on localhost:3000.
 
-    node --harmony app.js
+    node app.js
 
 To see results:
 
diff --git a/stream-view/view.js b/stream-view/view.js
@@ -1,34 +1,34 @@
-var Readable = require('stream').Readable;
-var inherits = require('util').inherits;
-var co = require('co');
+'use strict';
 
-module.exports = View
+const Readable = require('stream').Readable;
+const co = require('co');
 
-inherits(View, Readable);
 
-function View(context) {
-  Readable.call(this, {});
+module.exports = class View extends Readable {
 
-  // render the view on a different loop
-  co.call(this, this.render).catch(context.onerror);
-}
+    constructor(context) {
+        super();
+
+        // render the view on a different loop
+        co.call(this, this.render).catch(context.onerror);
+    }
+
+    _read() {}
+
+    *render() {
+        // push the <head> immediately
+        this.push('<!DOCTYPE html><html><head><title>Hello World</title></head>');
 
-View.prototype._read = function () {};
-
-View.prototype.render = function* () {
-  // push the <head> immediately
-  this.push('<!DOCTYPE html><html><head><title>Hello World</title></head>');
-
-  // render the <body> on the next tick
-  var body = yield function (done) {
-    setImmediate(function () {
-      done(null, '<p>Hello World</p>');
-    });
-  };
-  this.push('<body>' + body + '</body>');
-
-  // close the document
-  this.push('</html>');
-  // end the stream
-  this.push(null);
-};
+        // render the <body> on the next tick
+        const body = yield done => {
+          setImmediate(() => done(null, '<p>Hello World</p>'));
+        };
+        this.push('<body>' + body + '</body>');
+
+        // close the document
+        this.push('</html>');
+
+        // end the stream
+        this.push(null);
+    };
+}
