How to Use bytes.Buffer in Golang
Golang bytes.Buffer Examples
Examples of Golang bytes.Buffer
The bytes package provides the Buffer type for efficient manipulation of byte slices. A Buffer starts out empty but grows as data of types like string, byte, and []byte are written to it.
...
How to Encrypt and Decrypt a String Using AES GCM 256 in Go
In Golang, using the crypto/aes package is the easiest way to encrypt a string using AES GCM 256.
In cryptography, Galois/Counter Mode (GCM) is a mode of operation for symmetric-key cryptographic block ciphers which is widely adopted for its performa...
How to Convert a Bool to a String in Go
In Golang, there are 2 ways to convert a bool to a string.
Using strconv.FormatBool Function
The strconv.FormatBool() function returns "true" or "false" according to the value of b. For example,
package main
import (
"fmt"
"strconv"
)
fun...
How to Generate a UUID in Go
In Golang, there are 4 ways to generate a uuid.
Using uuid Package
install
Use the following command to download the repository to the local file system.
install
go mod tidy
go get github.com/google/uuid
go install github.com...
How to Convert Byte Array to String in Go
In Golang, there are 2 ways to convert byte array to string.Using string Function
The easiest way to convert []byte to string in Golang:
package main
import "fmt"
func main() {
b := []byte{'a', 'b', 'c'}
s := string(b[:])
fmt.Printf("%...
How to find the type of an object in Go
In Golang, there are three ways to find the type of an object.Using fmt.Sprintf Function
You can use fmt.Sprintf function to get a string representation. For example,
package main
import "fmt"
func main() {
i := 10
f := 2.0
var m map[s...
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 convert an int to a string type in Go
3 ways to convert int64 to string in Golang.Using strconv.Itoa Function
The code snippet below shows how to convert an int to a string using the Itoa function.
package main
import (
"fmt"
"strconv"
)
func main() {
s := strconv.Itoa(100)
f...
How to format byte size as kilobytes, megabytes in Go
Convert File Size to a human friendly format.Get file size in human-readable units like kilobytes (KB), Megabytes (MB) or GigaBytes (GB)
SI (Decimal 1 k = 1,000)
A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a mul...
How to format a string in PHP
Formatting PHP Strings with printf and sprintf.
Using sprintf Function
The sprintf() return a formatted string.
sprintf(string $format, mixed ...$values): string
// iPhone 14 Pro
echo sprintf("%s %d Pro\n", "iPhone", 14);
// iPhone 14 Pro
prin...
How to handle If-modified-since header in PHP
Reduce Bandwidth Usage by Supporting If-Modified-Since in PHP.
If-Modified-Since
The If-Modified-Since request HTTP header makes the request conditional: the server sends back the requested resource, with a 200 status, only if it has been last modif...
How to get content from a url in Go
Reading from a url resource in Go.Fetching a URL
Go provides a collection of packages, grouped under net, that make it easy to send and receive information through the Internet. Package http provides HTTP client and server implementations.
packag...
How to use fmt.Sprintf Function in Go
Format a string without printing in Go.Basics
Package fmt implements formatted I/O with functions analogous to C's printf and scanf. The format 'verbs' are derived from C's but are simpler.
fmt.Sprintf
Sprintf formats according to a format specif...
How to convert interface to int64 in Go
Interface variable conversion in Golang.Type Assertion
To convert interface to int64 in Go, Using Type Assertion.
A type assertion provides access to an interface value's underlying concrete value.
package main
import "fmt"
// t := i.(T)
// t, ok ...
How to convert interface to string in Go
Type casting an interface to a string in go.Using fmt.Sprintf Function
To convert interface to string in Go, use fmt.Sprintf function.
Sprintf formats according to a format specifier and returns the resulting string.
package main
import "fmt"
var ...