How to generate a random int in Golang
In Golang there a are two libraries for generating random integers, one is a pseudo-random number generator (package math/rand) and the second one is cryptographically secure random number generator (package crypto/rand)
How to trim whitespace from string in Golang
How to trim (remove) leading and trailing whitespace from string in Golang using the TrimSpace, Trim, TrimLeft, TrimRight methods from strings package.
How to delete the Windows.old folder from Windows 10
If you recently update your OS to Windows 10, you might notice that you are running out of space. If this is happening it might be because the old version of the Windows is not yet deleted from the disk, it is stored into "Windows.old" folder. And depending on the size of that version, it could be taking a lot of precious space.
How to split a string into slice in Golang
How to split a string into slice using Golang. For a simple split by a singular character you can use Split() method from strings package. For more complex rules the regexp.Split() method can be used.
How to convert string to uppercase in Golang
How to convert a string into uppercase in Golang using ToUpper method from strings package.
How to convert string to lowercase in Golang
How to convert a string into lowercase in Golang using ToLower method from strings package.
