rbenv is a great tool to manage multiple Ruby versions and here are some of its commonly used commands summarized for quick reference.

nodenv is a great tool to manage multiple NodeJS versions and here are some of its commonly used commands summarized for quick reference.

In frontend development sometimes you need to export the data (usually in JSON format) as downloadable csv format, and for those working on ReactJS related web applications, there is a package named react-csv that can save you from breaking the DRY… However, you may also encounter issues when applying this package in some specific scenarios, such as the one I’m writing down soon which involves in data being loaded asyncronously but needed for initial UI rendering.

List of python topics of interest.

Command list to install docker ce on ubuntu (17.10).

How to delete all rows of a table and also reset the index.

How to insert images when outputting excel using POI packages in Java.

How to group a list of objects by one of the object’s attribute, which is similar to SQL group by statement and having the same results.

ThreadPoolExeuctor from concurrent.futures package in Python 3 is very useful for executing a task (function) with a set of data (parameter) concurrently and this post lists examples on how to pass MULTIPLE parameters to the task being executed.

How to use a jquery plugin to implement floating horizontal scrollbar, which is especially useful for single page application where partial content of the page (i.g. table of data) are large and dynamically updated and you don’t want to make use of the browser scrollbar for scrolling the partial content.