03-23-2019
MaxtheCat,
I suggest you relax, enjoy a coffee, a beer, a glass of wine, or whatever you like and watch a few YT videos, for example:
The Net Ninja:
Node JS Tutorial for Beginners #1 - Introduction - YouTube
AngularJS Tutorial #1 - Introduction to AngularJS - YouTube
Traversy Media:
Angular Crash Course - 2019 - YouTube
Node.js Crash Course - YouTube
These tutorials will take you well on your way to understanding Angular and node.js. Thirty minutes of video tutorials will help you greatly (hours are even better) and are generally more useful, and often more entertaining, than watching a movie rerun on TV or a Netflix video.
You do not need to watch all of them or the entire series on one playlist if you do not want to learn Angular and Node, but you should at least learn the basics of what you are doing when you are installing an Angular application.
If you do not understand the basics, how can you build and deploy an Angular app?
From your posts, you seem be missing a basic understanding of what an Angular application is and how to build and deploy it. You are seemingly trying to deploy it without building it; and this is not now modern SPA applications are deployed. You must build the application using node.js, normally on your desktop, then deploy it to a web server (remotely).
Developers, like me, develop, build and deploy node.js apps like this continually, BTW. But we normally run node.js in dev mode before we build. All of that is described in the each of tutorials above. Just pick one and learn a bit about what you are trying to do.
I prefer Vue.js over Angular, but that's just my personal preference.
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LEARN ABOUT DEBIAN
tie::dxhash
Tie::DxHash(3) User Contributed Perl Documentation Tie::DxHash(3)
NAME
Tie::DxHash - keeps insertion order; allows duplicate keys
SYNOPSIS
use Tie::DxHash;
my(%vhost);
tie %vhost, 'Tie::DxHash' [, LIST];
%vhost = (
ServerName => 'foo',
RewriteCond => 'bar',
RewriteRule => 'bletch',
RewriteCond => 'phooey',
RewriteRule => 'squelch',
);
DESCRIPTION
This module was written to allow the use of rewrite rules in Apache configuration files written with Perl Sections. However,
a potential user has stated that he needs it to support the use of multiple ScriptAlias directives within a single Virtual Host (which
is required by FrontPage, apparently). If you find a completely different use for it, great.
The original purpose of this module is not quite so obscure as it might sound. Perl Sections bring the power of a general-purpose
programming language to Apache configuration files and, having used them once, many people use them throughout. (I take this
approach since, even in sections of the configuration where I do not need the flexibility, I find it easier to use a consistent
syntax. This also makes the code easier for XEmacs to colour in ;-) Similarly, mod_rewrite is easily the most powerful way to perform
URL rewriting and I tend to use it exclusively, even when a simpler directive would do the trick, in order to group my redirections
together and keep them consistent. So, I came up against the following problem quite early on.
The synopsis shows some syntax which might be needed when using mod_rewrite within a Perl Section. Clearly, using an ordinary hash
will not do what you want. The two additional features we need are to preserve insertion order and to allow duplicate keys. When
retrieving an element from the hash by name, successive requests for the same name must iterate through the duplicate entries (and,
presumably, wrap around when the end of the chain is reached). This is where Tie::DxHash comes in. Simply by tying the offend-
ing hash, the corresponding configuration directives work as expected.
Running an Apache syntax check (with docroot check) on your configuration file (with "httpd -t") and checking virtual host settings (with
"httpd -S") succeed without complaint. Incidentally, I strongly recommend building your Apache configuration files with make (or
equivalent) in order to enforce the above two checks, preceded by a Perl syntax check (with "perl -cx").
INTERNALS
For those interested, Tie::IxHash works by storing the hash data in an array of hash references (containing the key/value pairs). This
preserves insertion order. A separate set of iterators (one per distinct key) keeps track of the last retrieved value for a given key,
thus allowing the successive retrieval of multiple values for the same key to work as expected.
SEE ALSO
perltie(1), for information on ties generally.
Tie::IxHash(3), by Gurusamy Sarathy, if you need to preserve insertion order but not allow duplicate keys.
For information on Ralf S. Engelschall's powerful URL rewriting module, mod_rewrite, check out the reference
documentation at "http://httpd.apache.org/docs/mod/mod_rewrite.html" and the URL Rewriting Guide at
"http://httpd.apache.org/docs/misc/rewriteguide.html".
For help in using Perl Sections to configure Apache, take a look at the section called "Apache Configuration in
Perl" at "http://perl.apache.org/guide/config.html#Apache_Configuration_in_Perl", part of the mod_perl guide, by Stas Bekman.
Alternatively, buy the O'Reilly book Writing Apache Modules with Perl and C, by Lincoln Stein & Doug MacEachern, and study Chapter 8:
Customizing the Apache Configuration Process.
BUGS
The algorithms used to retrieve and delete elements by key run in O(N) time, so do not expect this module to work well on large data
sets. This is not a problem for the module's intended use. If you find another use for the module which involves larger quantities of
data, let me know and I will put some effort into optimising for speed.
The mod_rewrite directives for which this module was written (primarily RewriteCond and RewriteRule) can occur in all four con-
figuration file contexts (i.e. server config, virtual host, directory, .htaccess). However, Tie::DxHash only helps when you are using a
directive which is mapped onto a Perl hash. This limits you to directives which are block sections with begin and end tags (like
<VirtualHost> and <Directory>). I get round this by sticking my mod_rewrite directives in a name-based virtual host container
(as shown in the synopsis) even in the degenerate case where the web server only has one virtual host.
AUTHOR
Kevin Ruscoe
perl v5.8.0 2001-06-15 Tie::DxHash(3)