How to use the Linux od command (Octal Dump)

I was in a command terminal “bash” window on my Mac and I tried to run this curl command to get a security token from a web service api:curl -d “Username=mywebsite&Password=password” -X POST https://dev-warehouseapi.somewebsiteservice.com/api/Token However, my curl command failed with the message “curl: no URL specified!”. For example: My curl command appeared to be perfect, … Continue reading How to use the Linux od command (Octal Dump)

Python and Kotlin: A comparison of the language basics

In this table I will compare some basic programming syntax and conventions between the Python and Kotlin programming languages. Programming element Python Kotlin Commenting code: # This is a comment // This is a comment Multi-line comments: “”” This is a comment. This is a comment, too. This is a comment, too. “”” /* This … Continue reading Python and Kotlin: A comparison of the language basics

MongoDB: How to install mongodb-community on Mac and run on localhost

The goal of this article is to show how to get mongodb-community to run on a Mac at localhost:27017. This assumes that Homebrew has already been installed on your Mac machine. Using a terminal or bash window, start with the following brew command:brew tap mongodb/brew In this screenshot, I used this command after I already … Continue reading MongoDB: How to install mongodb-community on Mac and run on localhost

Node.js: How to launch a temporary server and view output in a web browser

Once you have successfully written some node.js code and have viewed the results via command line, (see my previous article about this, linked below) the next logical step is to be able to write node.js code that can use HTML and be viewable in a web browser. To view node.js output in a web browser, … Continue reading Node.js: How to launch a temporary server and view output in a web browser

Node.js: How to write node.js code locally and test using the command line

The first thing we want to do when getting ready to code in node.js is make sure that Node and NPM are installed on our machine. Start by opening a command window and type the command node -v. Then check to confirm that NPM is installed also using the command npm -v: Once that is … Continue reading Node.js: How to write node.js code locally and test using the command line