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.

Java common data type and structure operations.

Code example to show that when a new instance is created, Java only creates instance for the sub class, and for the super class.

Java open url with URL and URLConnection.

Code example to show that Java child class also inherits parent class private fields.

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.