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Compact Binary Format for JSON Data Transfer

When you wish to use JSON for its convenience, but also want to send the JSON using a more compact representation to save data that needs to be transfer, you will need to use an information encoder for JSON. These encoders tend to represent the JSON data in binary format for transfer and there are many out there.

Get Port

Getting an open TCP port is useful when you wish to run a server on a port without knowing which ports are currently available.

Alternative to Puppeteer for PDF Generation

While puppeteer is a popular option used for testing as well as pdf generation for webpages, playwright is also another option that can perform these tasks and more.

Avoid Ignoring Folders that has Files Within them to Ignore

Supposedly, there is a need to ignore generated content within a folder called "temp":

# .gitignore

test/temp/*

Ramda's Type Check

Ramda's type checking returns a string, but in order for this to be useful, one needs to know if the returned value matches your intended assertion.

R.type({}); //=> "Object"
R.type(1); //=> "Number"
R.type(false); //=> "Boolean"
R.type('s'); //=> "String"
R.type(null); //=> "Null"
R.type([]); //=> "Array"
R.type(/[A-z]/); //=> "RegExp"
R.type(() => {}); //=> "Function"
R.type(undefined); //=> "Undefined"

Backpressure for Promises

When dealing with promises, the processing of long-running tasks is the commonly encountered scenario. However, some long-running task might also be performing memory intensive operations. To deal with running multiple operations at once, it is important to place a limit on the number of promises allowed to run at the same time as to not exhaust the Nodejs JavaScript heap.

Cjstoesm

Automate the process of converting over JavaScript files in the cjs format to the newer ESM format with the command line.