forked from manuelkiessling/nodebeginner.org
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathindex.html
1938 lines (1672 loc) · 77.9 KB
/
index.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<!doctype html>
<html lang="en" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<?php require_once('_defaultheaders.php'); ?>
<title>The Node Beginner Book - A comprehensive Node.js tutorial</title>
<meta name="description" content="A comprehensive Node.js tutorial for beginners: Learn how to build a full blown web application with server-side JavaScript" />
<style>
body {
font-family: 'Georgia', serif;
background-color: #eee;
padding-top: 0px;
}
h2, h3, h4, h5, h6 {
font-family: 'Open Sans', sans-serif;
}
#outermost {
width: 860px;
margin: 0 auto;
}
#forkmeongithub img {
z-index: 5;
position: absolute;
top: 0;
right: 0;
border: 0;
}
#book, #disqus_thread, #footer {
margin: 0 auto;
margin-top: 24px;
margin-bottom: 100px;
padding: 64px;
background-color: white;
border-top: 1px solid #ddd;
border-left: 1px solid #ddd;
border-bottom: 1px solid #ddd;
border-right: 1px solid #ddd;
z-index: 100;
box-shadow: 14px 11px 27px #888;
}
#book {
margin-top: 94px;
}
#author {
margin-top: -46px;
margin-left: 279px;
color: #888;
font-family: 'Open Sans', sans-serif;
font-size: 100%;
font-style: normal;
}
#workinprogressnote p {
font-family: 'Open Sans', sans-serif;
color: #700;
text-align: center;
}
#buybox, #buybox-inner, #translations {
font-family: 'Open Sans', sans-serif;
font-size: 13px;
color: #fff;
text-align: center;
padding: 8px;
padding-left: 32px;
padding-right: 32px;
border-radius: 8px;
box-shadow: 0px 0px 4px #444;
position: relative;
margin-bottom: 20px;
margin-left: auto;
margin-right: auto;
width: 100%;
background-color: #555;
}
#sitenav {
margin-top: 16px;
margin-bottom: 16px;
}
#sitenav-inner {
text-align: center;
margin: 0 auto;
font-family: 'Open Sans', sans-serif;
font-size: 13px;
}
#sitenav-inner a {
text-decoration: none;
}
#sitenav-inner a:hover {
text-decoration: underline;
}
#translations {
max-width: 640px;
}
#translations table {
margin: 0 auto;
}
#translations img {
border: none;
}
#translations td {
text-align: left;
vertical-align: top;
}
#translations a {
text-decoration: none;
color: #fff;
}
#translations .flag {
margin-top: 20px;
vertical-align: middle;
padding-top: 4px;
}
#translations .text {
display: inline-block;
vertical-align: middle;
margin-right: 24px;
}
#buybox {
background: none;
border: none;
box-shadow: none;
padding: 0;
}
#buybox-inner {
padding-bottom: 20px;
display: block;
margin: 0 auto;
max-width: 640px;
}
#buybox-inner.cn {
float: none;
padding-bottom: 20px;
display: block;
margin: 0 auto;
}
#buybox-inner .cover {
width: 170px;
display: table-cell;
padding-right: 0px;
padding-left: 16px;
vertical-align: top;
align: center;
color: #bbb;
}
#buybox-inner .cover img {
border: 1px solid black;
box-shadow: 0 1px 2px rgba(0,0,0,0.4), inset -1px 1px 0 rgba(255,255,255,0.4);
-moz-box-shadow: 0 1px 2px rgba(0,0,0,0.4), inset -1px 1px 0 rgba(255,255,255,0.4);
-webkit-box-shadow: 0 1px 2px rgba(0,0,0,0.4), inset -1px 1px 0 rgba(255,255,255,0.4);
}
#buybox-inner .description {
width: 260px;
display: table-cell;
padding-right: 16px;
padding-left: 16px;
vertical-align: top;
text-align: center;
}
#buybox-inner strong.price {
font-size: 18pt;
color: #14d014;
}
#buybox-inner strong.price.dollarsign {
font-weight: normal;
}
.price sup {
font-size: 10pt;
font-weight: normal;
}
#buybox-inner .buy {
display: table-cell;
vertical-align: top;
color: #bbb;
}
#buybox-inner .button, #salespitch .button {
padding: 8px;
margin-top: 26px;
margin-left: auto;
margin-right: auto;
width: 140px;
border: 1px solid #444;
border-radius: 6px;
background-image: -moz-linear-gradient(top, #14d014, #029302);
background-image: -webkit-gradient(linear, center top, center bottom, from(#14d014), to(#029302));
box-shadow: 0 1px 2px rgba(0,0,0,0.4), inset -1px 1px 0 rgba(255,255,255,0.4);
-moz-box-shadow: 0 1px 2px rgba(0,0,0,0.4), inset -1px 1px 0 rgba(255,255,255,0.4);
-webkit-box-shadow: 0 1px 2px rgba(0,0,0,0.4), inset -1px 1px 0 rgba(255,255,255,0.4);
text-align: center;
font-family: 'Open Sans', sans-serif;
}
.buttonlink {
text-decoration: none;
font-weight: bold;
font-size: 15px;
color: #fff;
text-shadow: 0.1em 0.1em #666;
}
#donate p {
font-family: 'Open Sans', sans-serif;
text-align: center;
}
#paypal fieldset {
border: 0;
}
#disqus_thread {
font-family: 'Open Sans', sans-serif;
}
#footer {
font-family: 'Open Sans', sans-serif;
background-color: #f5f5f5;
margin-top: 100px;
}
#footer p {
text-align: center;
font-family: 'Open Sans', sans-serif;
font-size: 11px;
}
#ccimage {
float: left;
margin-left: 30px;
margin-right: 0;
margin-top: 20px;
}
#praise {
position: absolute;
top: 120px;
right: 40px;
width: 204px;
font-style: italic;
color: #aaa;
z-index: -1;
text-align: right;
}
#praise .praise {
margin-bottom: 25px;
}
#praise .author {
font-style: normal;
font-size: 75%;
}
#table-of-contents-headline {
margin-top: 48px;
color: #700;
font-size: 160%;
font-weight: bold;
}
#book #table-of-contents {
margin-left: -24px;
font-family: 'Open Sans', sans-serif;
}
#book #table-of-contents ul li {
font-size: 100%;
margin-left: 0;
list-style-type: none;
}
#book #table-of-contents ul {
padding-left: 24px;
margin-top: 12px;
margin-left: 0;
margin-bottom: 36px;
}
h1 {
margin-left: -63px;
margin-top: -109px;
font-size: 300%;
color: #700;
font-style: italic;
font-weight: bold;
}
h2 {
margin-top: 64px;
font-size: 180%;
}
h3 {
font-size: 160%;
}
h4 {
font-size: 140%;
}
h5 {
font-size: 120%;
}
h3, h4, h5 {
margin-top: 36px;
}
h2, h3, h4, h5 {
color: #700;
font-weight: bold;
margin-bottom: 36px;
}
#salespitch {
font-family: 'Open Sans', sans-serif;
width: 90%;
max-width: 640px;
margin: 0 auto;
}
#salespitch .bundle-book {
overflow: hidden;
}
#salespitch .bundle-book-image {
width: 100px;
float: left;
}
#salespitch .bundle-book-image img {
box-shadow: 2px 2px 1px #bbb;
}
#salespitch .bundle-book-text {
overflow: hidden;
}
#salespitch .bundle-book-connection {
text-align: center;
font-size: 36pt;
font-weight: bolder;
color: #6b6;
margin-top: -16px;
margin-bottom: 8px;
}
#authorimage {
float: right;
padding-left: 32px;
padding-bottom: 4px;
}
#salespitch .box {
text-align: center;
width: 200px;
background-color: #eee;
border-radius: 16px;
padding: 32px;
margin: 0 auto;
}
#salespitch .box .subinfo {
font-size: 10pt;
color: #777;
}
#salespitch .box .subinfo strong {
font-size: 14pt;
color: #080;
}
#bubble {
border: 1px solid #999;
border-radius: 16px;
padding: 32px;
background-color: #ffe;
margin-bottom: 60px;
}
#salespitch .orbox {
width: 200px;
margin: 0 auto;
text-align: center;
padding: 24px;
}
#hiddenhalf {
opacity: 0.075;
}
#book p {
text-align: justify;
font-size: 110%;
line-height: 150%;
margin-bottom: 48px;
margin-top: -22px;
}
pre {
font-family: 'Source Code Pro', Menlo, Monaco, Courier, monospace;
background-color: #f7f7f7;
border: 1px solid #eee;
padding: 16px;
margin-bottom: 64px;
margin-top: -24px;
font-size: 14px;
white-space: pre-wrap; /* Since CSS 2.1 */
white-space: -moz-pre-wrap; /* Mozilla, since 1999 */
white-space: -pre-wrap; /* Opera 4-6 */
white-space: -o-pre-wrap; /* Opera 7 */
word-wrap: break-word; /* Internet Explorer 5.5+ */
}
pre.prettyprint {
background-color: #f7f7f7;
border: 1px solid #eee;
padding: 16px;
margin-bottom: 64px;
margin-top: -24px;
font-size: 14px;
}
#book div ul {
margin-top: -24px;
margin-bottom: 48px;
}
#salespitch div ul {
margin-top: 22px;
}
#book div ul li {
margin-bottom: 12px;
font-size: 110%;
}
blockquote {
font-style: italic;
}
/* Prettify */
.str {
color: #080
}
.kwd {
color: #008
}
.com {
color: #800
}
.typ {
color: #606
}
.lit {
color: #066
}
.pun {
color: #660
}
.pln {
color: #000
}
.tag {
color: #008
}
.atn {
color: #606
}
.atv {
color: #080
}
.dec {
color: #606
}
ol.linenums {
margin-top: 0;
margin-bottom: 0
}
li.L0, li.L1, li.L2, li.L3, li.L5, li.L6, li.L7, li.L8 {
list-style: none
}
li.L1, li.L3, li.L5, li.L7, li.L9 {
background: #eee
}
.sales-testimonials-box {
background-color: white;
padding: 32px;
overflow: hidden;
margin: -32px;
margin-top: 32px;
border-radius: 16px;
}
.sales-testimonial {
clear: both;
}
.sales-testimonial div.text {
background-color: #fbfbfb;
color: #202020;
border: 1px solid #eee;
border-radius: 16px;
padding: 28px 44px 28px 64px;
font-size: 18px;
}
.sales-testimonial span.quotationmark-start {
display: inline-block;
font-size: 98px;
color: #dfdfdf;
line-height: 0;
padding-top: 28px;
float: left;
position: absolute;
font-family: "Georgia", "Times New Roman", serif;
margin-left: -44px;
}
.sales-testimonial span.quotationmark-end {
display: inline-block;
font-size: 98px;
color: #dfdfdf;
line-height: 0;
padding-top: 45px;
float: left;
position: absolute;
font-family: "Georgia", "Times New Roman", serif;
padding-left: 6px;
}
.sales-testimonial div.image {
display: inline-block;
float: left;
padding-top: 11px;
padding-left: 3px;
margin-bottom: 48px;
}
.sales-testimonial div.image.right {
float: right;
}
.sales-testimonial div.author {
display: inline-block;
float: left;
margin-top: 14px;
margin-left: 16px;
margin-right: 16px;
font-size: 20px;
font-weight: bold;
color: #0084B4;
}
.sales-testimonial span.source {
font-weight: normal;
color: #777;
}
.sales-testimonial div.author.right {
float: right;
}
@media only print {
#book {
margin-top: 60px;
}
#book, #footer {
border: none;
box-shadow: none;
}
#footer {
border-top: 1px solid black;
}
#translations {
display: none;
}
#buybox-inner {
display: none;
}
#disqus_thread {
display: none;
}
#forkmeongithub {
display: none;
}
#praise {
display: none;
}
}
@media only screen and (max-width: 1440px) {
#praise {
display: none;
}
}
@media only screen and (max-width: 960px) {
#praise {
display: none;
}
#outermost {
max-width: 720px;
}
#buybox, #buybox-inner, #translations {
font-size: 17px;
}
#sitenav-inner a {
display: block;
font-size: 18px;
margin-bottom: 4px;
}
#footer p {
font-size: 18px;
}
}
</style>
<link rel="canonical" href="https://www.nodebeginner.org/" />
<?php require_once('_hreflang.php'); ?>
<?php require_once('_googleanalytics.php'); ?>
<script type="application/ld+json">
{
"@context": "http://schema.org",
"@type": "Book",
"name": "The Node Beginner Book",
"author": {
"@type": "Person",
"name": "Manuel Kiessling"
},
"url": "https://www.nodebeginner.org",
"sameAs": "https://www.nodebeginner.org",
"workExample":
[
{
"@type": "Book",
"isbn": "9781471628443",
"bookFormat": "http://schema.org/EBook",
"potentialAction": {
"@type": "ReadAction",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://leanpub.com/b/node-beginner-and-craftsman-bundle",
"actionPlatform": [
"http://schema.org/DesktopWebPlatform",
"http://schema.org/MobileWebPlatform",
"http://schema.org/IOSPlatform",
"http://schema.org/AndroidPlatform"
]
},
"expectsAcceptanceOf": {
"@type": "Offer",
"Price": 9.00,
"priceCurrency": "USD",
"availability": "http://schema.org/InStock"
}
}
}
]
}
</script>
</head>
<body>
<div id="outermost">
<aside id="buybox">
<div id="buybox-inner">
<div class="cover">
<p>
The perfect introduction plus its comprehensive follow-up now in one bundle!
</p>
<a class="salelink vwo-conv-link-bundle-2-top" href="https://leanpub.com/b/node-beginner-and-craftsman-bundle"><img src="the_node_beginner_book_cover_small.png" height="86" width="57" /></a>
<a class="salelink vwo-conv-link-bundle-2-top" href="https://leanpub.com/b/node-beginner-and-craftsman-bundle"><img src="the_node_craftsman_book_cover_small.png" height="86" width="57" /></a>
</div>
<div class="description">
<p>
Leanpub.com currently offers<br />
the final version of
<br />
<strong>The Node Beginner Book</strong>
<br />
plus its follow-up
<br />
<strong>The Node Craftsman Book</strong>
<br />
<br />
for <strong class="price dollarsign">$</strong><strong class="price">9</strong> only!
<br />
<br />
(limited offer - regular price is $29.99)
</p>
</div>
<div class="buy">
<p>
224 pages in total
<br />
PDF, ePub & MOBI
<br />
Free lifetime updates
<br />
<br />
Unconditional 45 days
<br />
money back guarantee
</p>
<a class="buttonlink salelink vwo-conv-link-bundle-2-top" href="https://leanpub.com/b/node-beginner-and-craftsman-bundle">
<div class="button">Buy this<br />bundle now</div>
</a>
</div>
</div>
</aside>
<div id="book">
<article>
<h1>The Node Beginner Book</h1>
<address id="author">A Node.js tutorial by <a href="https://twitter.com/manuelkiessling" rel="author">Manuel Kiessling</a></address>
<section>
<a name="about"></a>
<h2>About</h2>
<p>
The aim of this document is to get you started with developing
applications with Node.js, teaching you everything you need to
know about "advanced" JavaScript along the way. It goes way
beyond your typical "Hello World" tutorial.
</p>
</section>
<section>
<a name="status"></a>
<h3>Status</h3>
<p>
You are reading the final version of this book, i.e., updates are only
done to correct errors or to reflect changes in new versions of Node.js.
It was last updated on June 5, 2017.
</p>
<p>
The code samples in this book are tested to work with both the
Long Term Support version 6.10.3 as well as the most current 8.0.0 version
of Node.js.
</p>
<p>
This site allows you to read the first 19 pages of this book
for free.
The complete text is available as a DRM-free eBook (PDF, ePub and
Kindle format). More info is available <a href="#salespitch">at the
end of the free part</a>.
</p>
</section>
<section>
<a name="intended-audience"></a>
<h3>Intended audience</h3>
<p>
This document will probably fit best for readers that have a
background similar to my own: experienced with at least one
object-oriented language like Ruby, Python, PHP or Java, only little
experience with JavaScript, and completely new to Node.js.
</p>
<p>
Aiming at developers that already have experience with other
programming languages means that this document won't cover
really basic stuff like data types, variables, control structures
and the likes. You already need to know about these to understand
this document.
</p>
<p>
However, because functions and objects in JavaScript are different
from their counterparts in most other languages, these will be
explained in more detail.
</p>
</section>
<section>
<a name="structure"></a>
<h3>Structure of this document</h3>
<p>
Upon finishing this document, you will have created a complete web
application which allows the users of this application to view web
pages and upload files.
</p>
<p>
Which, of course, is not exactly
world-changing, but we will go some extra miles and not only create
the code that is "just enough" to make these use cases possible,
but create a simple, yet complete framework to cleanly separate the
different aspects of our application. You will see what I mean in a
minute.
</p>
<p>
We will start with looking at how JavaScript development in Node.js
is different from JavaScript development in a browser.
</p>
<p>
Next, we will stay with the good old tradition of writing a "Hello
World" application, which is a most basic Node.js application that
"does" something.
</p>
<p>
Then, we will discuss what kind of "real" application we want to
build, dissect the different parts which need to be implemented to
assemble this application, and start working on each of these parts
step-by-step.
</p>
<p>
As promised, along the way we will learn about some of the more
advanced concepts of JavaScript, how to make use of them, and
look at why it makes sense to use these concepts instead of
those we know from other programming languages.
</p>
<p>
The source code of the finished application is available through
<a href="https://github.com/ManuelKiessling/NodeBeginnerBook/tree/master/code/application">the
NodeBeginnerBook Github repository</a>.
</p>
</section>
<section>
<h3>Table of contents</h3>
<div id="table-of-contents">
<ul>
<li><a href="#about">About</a>
<ul>
<li><a href="#status">Status</a></li>
<li><a href="#intended-audience">Intended audience</a></li>
<li><a href="#structure">Structure of this document</a></li>
</ul>
</li>
<li><a href="#javascript-and-nodejs">JavaScript and Node.js</a>
<ul>
<li><a href="#javascript-and-you">JavaScript and You</a></li>
<li><a href="#a-word-of-warning">A word of warning</a></li>
<li><a href="#server-side-javascript">Server-side JavaScript</a></li>
<li><a href="#hello-world">"Hello World"</a></li>
</ul>
</li>
<li><a href="#a-full-blown-web-application-with-nodejs">A full blown web application with Node.js</a>
<ul>
<li><a href="#the-use-cases">The use cases</a></li>
<li><a href="#the-application-stack">The application stack</a></li>
</ul>
</li>
<li><a href="#building-the-application-stack">Building the application stack</a>
<ul>
<li><a href="#a-basic-http-server">A basic HTTP server</a></li>
<li><a href="#analyzing-our-http-server">Analyzing our HTTP server</a></li>
<li><a href="#passing-functions-around">Passing functions around</a></li>
<li><a href="#how-function-passing-makes-our-http-server-work">How function passing makes our
HTTP server work</a></li>
<li><br/><strong>Chapters available in the <a href="https://leanpub.com/b/node-beginner-and-craftsman-bundle">full book</a>:</strong><br/><br/>
<li>Event-driven asynchronous callbacks</li>
<li>How our server handles requests</li>
<li>Finding a place for our server module</li>
<li>What's needed to "route" requests?</li>
<li>Execution in the kingdom of verbs</li>
<li>Routing to real request handlers</li>
<li>Making the request handlers respond
<ul>
<li>How to not do it</li>
<li>Blocking and non-blocking</li>
<li>Responding request handlers with non-blocking operation</li>
</ul>
</li>
<li>Serving something useful
<ul>
<li>Handling POST requests</li>
<li>Handling file uploads</li>
</ul>
</li>
<li>Conclusion and outlook</li>
</li>
</ul>
</li>
</ul>
</div>
</section>
<section>
<a name="javascript-and-nodejs"></a>
<h2>JavaScript and Node.js</h2>
<a name="javascript-and-you"></a>
<h3>JavaScript and You</h3>
<p>
Before we talk about all the technical stuff, let's take a
moment and talk about you and your relationship with
JavaScript. This chapter is here to allow you to estimate
if reading this document any further makes sense for you.
</p>
<p>
If you are like me, you started with HTML "development"
long ago, by writing HTML documents. You came across this
funny thing called JavaScript, but you only used it in a
very basic way, adding interactivity to your web pages
every now and then.
</p>
<p>
What you really wanted was "the real thing", you wanted to
know how to build complex web sites - you learned a
programming language like PHP, Ruby, Java, and started
writing "backend" code.
</p>
<p>
Nevertheless, you kept an eye on JavaScript, you saw that
with the introduction of jQuery, Prototype and the likes,
things got more advanced in JavaScript land, and that this
language really was about more than <em>window.open()</em>.
</p>