This blog post will be the first in the series about OpenCV and Computer Vision. Since my university days, I was impressed by Computer Vision. The eccentric possibilities of the field pushed the boundary of what was once only part of a sci-fi products like… Read More »The OpenCV Journey Part I: The Setup and Basics
Lately, I found myself thinking more and more about the future. Not in the existential dread, time is passing type of manner. More out of curiosity regarding humanity’s role in technological progress and promises of future revolutions. AI, nanotechnology, computation, biotechnology, warfare, and medicine are… Read More »Predicting the growth of technological progress
Web scraping (data mining, web harvesting, or web data extraction) is the practice of scraping and extracting data from webpages, using any means possible apart from interacting with an API. The process of scraping a web page usually involves the same set of steps: using… Read More »Web scraping with Python and BeautifulSoup
Logical operators (AND, OR and NOT) serve multiple purposes in bash. First and foremost, they are used to create complex expressions by combining simpler ones. Depending on the version of test and bash in use the syntax of logical operators might change. Logical operators are… Read More »Bash logical operators
In the last article we talked about the test command. The test command evaluates conditional statements on files, strings, and integers. In order to match against a regular expression, we need to use a new type of compound command. This command serves as a wrapper… Read More »Matching regex in bash
In the last article we talked about the basics of Linux shell scripts. In this one, we’ll mention test, a command-line utility that evaluates and compares conditional expressions. Test is a shell builtin most commonly used with the if statement. Depending on the expression, conditional… Read More »Using test in Linux scripts
We can write complex computations using command line tools by creating shell scripts. Shell scripts are nothing more than simple files containing shell commands grouped together. They are called ‘shell scripts‘ because all the complex computations that would need to be typed out to the… Read More »What are Linux shell scripts?
In the last article, we talked about attribute directives. In a natural continuation of the theme, we’ll now mention structural directives, too. So what are they, how do they differ from attribute directives, and what are we using them for? Structural directives In short, structural… Read More »Using structural directives in Angular
Directives are functions that enhance the current or add additional behavior to the HTML elements they are bound to. We could divide directives into: Attribute directives Structural directives Components If finding components in this list feels weird do you, keep in mind that components are… Read More »Using attribute directives in Angular
ngOnChanges is a lifecycle hook that is being invoked every time a variable decorated by @Input changes. We are intercepting and handling changes inside a ngOnChanges(changes: SimpleChanges) method. We are using the SimpleChanges API, an interface that represents all the changes stored by a particular… Read More »Using ngOnChanges