Category: Uncategorized

How to learn TypeScript in 2023

Paper books about JavaScript and TypeScript? No, thank you.

I know there are many people who would disagree, and I can partially agree it’s my personal bad… but time time ago I read last paper book about software development. It was very disappointing and not convenient, because I while reading I also wanted to try code.

I think, that if so much public information is available online, for free I don’t want to waste time reading paper books. Instead, I was, and is apologetic towards learning ANYTHING from the very root source code. If God released his source code to GitHub I would rather look into that code, instead of talking with him 🙂 #aJoke

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How the Servlet Container Invokes Filters

Text and Image flow:

стосовно:

“Figure 3-1 shows how the servlet container invokes filters. On the left is a scenario in which no filters are configured for the servlet being called. On the right, several filters (1, 2, …, N) have been configured in a chain to be invoked by the container before the servlet is called and after it has responded. The web.xml file specifies which servlets cause the container to invoke the filters.”
– Servlet Filters and Event Listeners (переглянути на Google Sidewiki)

web.xml

web.xml Deployment Descriptor Elements

стосовно:

“The following sections describe the deployment descriptor elements defined in the web.xml file under the root element : context-param description display-name distributable ejb-ref ejb-local-ref env-entry error-page filter filter-mapping icon listener login-config mime-mapping resource-env-ref resource-ref security-constraint security-role servlet servlet-mapping session-config taglib welcome-file-list”
– web.xml Deployment Descriptor Elements (переглянути на Google Sidewiki)

Applied Regular Expressions: Validating Email

Additional info about Email validation

стосовно:

“For the purposes of this discussion, and the one that you will find in the regular-expressions.com email sample, a valid email address is composed of the following: A word composed of valid characters (A-Z, a-z, 0-9, and the special characters “.”, “%”, “+”, and “-“) An “@” symbol A collection of valid characters for a domain name (A-Z, a-z, 0-9, and the special characters “.” and “-“) A period “.” Two to four alphabetic characters”
– InformIT: Java Reference Guide > Applied Regular Expressions: Validating Email (переглянути на Google Sidewiki)