How to Append Text to a File in Go
In Golang, using the os.O_APPEND flag is the easiest way to append text to a file
Using os.OpenFile Function
OpenFile is the generalized open call; most users will use Open or Create instead. It opens the named file with specified flag (O_RDONLY etc...
How to Get the Maximum Value for an Int Type in Go
In Golang, there are 2 ways to get the maximum value for an int type.
Using constant values
Since integer types use two's complement arithmetic, you can infer the min/max constant values for int and uint. For example,
package main
import (
"...
How to format a date or time in Go
In Golang, there are two ways to format the time.The layout string
Go doesn’t use yyyy-mm-dd layout to format a time. Instead, you format a special layout parameter.
2006-01-02 15:04:05.999999999 -0700 MST
package main
import (
"fmt"
"tim...
How to calculate CRC32 checksum in Python
Python Examples of zlib.crc32Cyclic redundancy check
A cyclic redundancy check (CRC) is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to digital data.
Using zlib.crc32 Function
Computes a C...
How to use string constants in Python
String Constants Best Practice.String Constants in Python
The constants defined in this module are:
String constants:
string.ascii_lettersThe concatenation of the ascii_lowercase and ascii_uppercase constants described below. This value is not locale...
How many keywords are there in Go
List of Golang Keywords.
Keywords
The following keywords are reserved and may not be used as identifiers.
break default func interface select
case defer go map struct
chan else goto package switch
const ...