Simple Samples

Author: manuel.depaz

P00_CodeSamples/helloWorld_4.js

@@ -8,4 +8,4 @@ function serveBooks() {
 	var books = []; // Intentionally cleaned
 }
 
-// Only the first time echo the 3x books
+// Only the first time echo the 3x books

P00_CodeSamples/helloWorld_5.js

@@ -0,0 +1,6 @@
+console.log('Hello');
+setTimeout(function() {
+	console.log('World');
+}, 5000);
+
+console.log('(I\m waiting here meanwhile... but not blocked)');

P00_CodeSamples/helloWorld_5.php

@@ -0,0 +1,5 @@
+<?php
+    print('Hello');
+    sleep(5);
+    print('World');
+?>

P00_CodeSamples/helloWorld_6.js

@@ -0,0 +1,15 @@
+var start = Date.now();
+console.log('time at start? ' + start);
+
+console.log('calling #1');
+setTimeout(function() {
+	console.log('seconds elapsed at #1 function? '+ (Date.now()-start));
+	for (var i=0;i<10000000000; i++) { /* do nothing, but blocks the execution */ }
+}, 1000);
+
+console.log('calling #2');
+setTimeout(function() {
+	console.log('seconds elapsed at #2 function? '+ (Date.now()-start));
+}, 2000);
+
+console.log('EOF');

P00_CodeSamples/helloWorld_7.js

@@ -0,0 +1,15 @@
+// E/S Bloqueante
+var urls = db.query("select * from urls"); //esperar
+urls.each(function(url) {
+	var page = http.get(url); //esperar
+	save(page); //esperar
+});
+
+// E/s No bloqueante, petición asincrona
+db.query("slect * from urls", function(urls) {
+	url.each(function(url) {
+		http.get(url, function(page) {
+			save(page);
+		});
+	});
+});

P00_CodeSamples/helloWorld_8.js

@@ -0,0 +1,21 @@
+// http://blog.elfilo.net/charla_nodejs
+
+var mail = require('mail');
+var addresses = [ 'jeff@mapbox.com', 'alex@mapbox.com', 'eric@mapbox.com' ];
+var message = 'I am writing to inform you of a...';
+
+var count = 0;
+
+addresses.forEach(function(sucker, i) {
+	// Attempt to send email.
+	mail(sucker, 'New opportunity', message, function(err) {
+		if (!err) {
+			count++;
+		}
+		
+		// Don't wait, get the next address NOW.
+		if (i == addresses.length - 1) {
+			console.log(count + " messages sent");
+		}
+	});
+});

P00_CodeSamples/helloWorld_8.php

@@ -0,0 +1,23 @@
+<?php
+
+    /* http://blog.elfilo.net/charla_nodejs */
+
+	$addresses = array(
+	  'jeff@mapbox.com',
+	  'alex@mapbox.com',
+	  'eric@mapbox.com'
+	);
+	$message = 'I am writing to inform you of a...';
+	$count = 0;
+
+	foreach($addresses as $sucker) {
+	    // Attempt to send email.
+	  if (mail($sucker, 'New opportunity', $message)) {
+	    $count++;
+	  }
+	}
+
+	// Once email is sent, get the next address.
+	echo $count . "messages sent";
+
+?>