Tutorials

One of the many challenges for new comers to Golang is to learn how to use go install command to….... read more

Golang : Strip slashes from string example

A quick post on how to get an equivalent to PHP's stripslashes() function in Golang. Basically in PHP, the stripslashes()….... read more

Linux/MacOSX : Search and delete files by extension

Continuing from previous tutorial on how to search for files by extension with find command. For this post,….... read more

Linux/MacOSX : Search for files by filename and extension with find command

Jotting down these useful commands here for future references, never know when I might need to recall them again on….... read more

PHP : Proper way to get UTF-8 character or string length

Problem :

Was trying to get a length of an unicode(UTF-8) character with PHP. Trouble is, PHP echoes back 3,….... read more

Elastic Search : Return all records (higher than default 10)

Problem :

You only get 10 results from elastic search query and you suspected that there should be more results….... read more

Golang : Determine if time variables have same calendar day

Problem :

You have two or more variables that are of type time.Time and you want to find out if….... read more

Golang : UDP client server read write example

In this tutorial, we will learn how to build a bare bone client-server UDP program with Golang. This UDP example….... read more

Golang : Get UDP client IP address and differentiate clients by port number

Problem :

Your UDP server program needs to find out the UDP client IP address before writing to client. However,….... read more

Golang : How to flush a channel before the end of program?

Problem :

Your program that uses channels and go routines did not print out all the expected result. Upon investigation,….... read more

Golang : How to verify input is rune?

Problem :

You need to determine if the user input is a valid rune. How to do that?

Solution :

Golang : Get S3 or CloudFront object or file information

Here is a simple example on how to get the S3, CloudFront object (in fact, any file accessible from URL)….... read more

Golang : Handle sub domain with Gin

Just a supplementary tutorial for the previous tutorial on how to deal with sub domain in Golang. In….... read more

Golang : Listen and Serve on sub domain example

At this moment, Golang's ListenAndServer() is able to handle URL with such pattern

www.example.com/api

However, if….... read more

Swift : Convert (cast) Character to Integer?