How to Check String is In Json Format in Go
In Golang, there are 2 ways to check string is in json format.
Using Unmarshal Function
The following example should cover whatever you are trying to do:
package main
import (
"encoding/json"
"fmt"
)
func isJson(s string) bool {
var js ...
How to Get File Creation and Modification Dates Times in Python
In Python, there are 3 ways to get file creation and modification dates times.
Using os.path Function
The os.path.getmtime() function returns the time of last modification of path.
The os.path.getctime() function returns the system’s ctime which, o...
How to Unpack Array as Arguments in Go
In Golang, there are 2 ways to unpack array as arguments.
Using Variadic Functions
Variadic functions can be called with any number of trailing arguments. Here’s a function that will take an arbitrary number of ints as arguments. For example,
p...
How to Pretty-Print Json in Go
In Golang, there are 2 ways to pretty-print json.
Using json.MarshalIndent Function
MarshalIndent is like Marshal but applies Indent to format the output. Each JSON element in the output will begin on a new line beginning with prefix followed by one...
How to Read a File Line-by-Line in Go
In Golang, there are 2 ways to read a file line-by-line.
Using bufio.Scanner Function
Scanner provides a convenient interface for reading data such as a file of newline-delimited lines of text. The ones that are currently implemented are:
packa...
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 use hash function in Python
Secure hashes and message digests.Hash algorithms
The hashlib module implements a common interface to many different secure hash and message digest algorithms. Included are the FIPS secure hash algorithms SHA1, SHA224, SHA256, SHA384, and SHA512 (def...
How to convert string to json in Python
Converting Json to string in Python.Decoding JSON
To convert string to json in Python, use the json.loads() function. The json.loads() is a built-in Python function that accepts a valid json string and returns a dictionary to access all elements. The...
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 ...
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 string to json in Go
Converting Json to string in Golang.Decoding JSON Into Structs
Go offers built-in support for JSON encoding and decoding, including to and from built-in and custom data types.
Unmarshal parses the JSON-encoded data and stores the result in the value ...
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 ...
How to use the telnet command in Linux
user interface to the TELNET protocol.
Telnet is an application protocol used on the Internet or local area network to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection. User data is interspe...
How to use the curl command in Linux
command line tool and library for transferring data with URLs.
cURL (pronounced 'curl') is a computer software project providing a library (libcurl) and command-line tool (curl) for transferring data using various network protocols. The name ...