Senger CodeLab 🚀

: All Posts

List all sequences in a Postgres db 81 with SQL

List all sequences in a Postgres db 81 with SQL

Im converting a db from postgres to mysql Since i cannot find a tool that does the trick itself im going to convert all postgres sequences to autoincrement ids

Read more →

log4j logging hierarchy order

log4j logging hierarchy order

What is the hierarchy of log4j logging DEBUG INFO WARN ERROR FATAL Which one provides the highest logging which would be helpful to troubleshoot issues Can any

Read more →

Matching an empty input field using CSS

Matching an empty input field using CSS

How do I apply a style to an empty input field If the user types something in the input field the style should no longer be applied Is this possible in CSS I

Read more →

Maven Run Project

Maven Run Project

Is there a Maven phase or goal to simply execute the main method of a Java class I have a project that Id like to test manually by simply doing something like

Read more →

Node Sass does not yet support your current environment Linux 64-bit with false

Node Sass does not yet support your current environment Linux 64-bit with false

Getting this error on Arch Linux with nodesass Im using it with gulpsass Node Sass does not yet support your current environment Linux 64bit with false

Read more →

NULL-safe property access  conditional assignment in EcmaScript 6

NULL-safe property access conditional assignment in EcmaScript 6

Is there an operator that would allow the following logic on line 4 to be expressed more succinctly const query succeed gt succeed value 4 undefined let value

Read more →

orgxmlsaxSAXParseException Content is not allowed in prolog

orgxmlsaxSAXParseException Content is not allowed in prolog

I have a Java based web service client connected to Java web service implemented on the Axis1 framework I am getting following exception in my log file Caused

Read more →

Performance of Arrays vs Lists

Performance of Arrays vs Lists

Say you need to have a listarray of integers which you need iterate frequently and I mean extremely often The reasons may vary but say its in the heart of the

Read more →

pytest assert almost equal

pytest assert almost equal

How to do assert almost equal with pytest for floats without resorting to something like assert x 000001 lt y lt x 000001 More specifically it will be useful

Read more →