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How to use the Fields() function in Golang?
The strings package of Golang provides a Fields() method, which can be used to split a string around one or more instances of consecutive whitespace characters.
The Fields() function splits a given string into substrings by removing any space characters, including newlines. And it treats multiple consecutive spaces as a single space.
Syntax
func Fields(s string) []string
Where s is the string parameter.
Example
Let us consider the following example −
package main
import (
"fmt"
"strings"
)
func main() {
// Initializing the Strings
string1 := " The Golang Programming Language "
// Display the Strings
fmt.Println("Input String:", string1)
// Using the EqualFold Function
m := strings.Fields(string1)
// Display the Fields Output
fmt.Println("Output String: ", m)
}Output
On execution, it will produce the following output −
Input String: The Golang Programming Language Output String: [The Golang Programming Language]
Here we used the Fields() function to remove the additional spaces between the words in the given input string.
Example
In this example, we are going to see how the newlines special characters are removed using the Fields function.
package main
import (
"fmt"
"strings"
)
func main() {
// Initializing the Strings
x := "Welcome \n to \n Golang \n Language \n"
y := "Programming \n Language \n"
z := "Object \n Oriented \n Programming \n Language \n"
w := "Golang \n Programming \n Language \n"
// Display the Strings
fmt.Println("Input String 1:", x)
fmt.Println("Input String 2:", y)
fmt.Println("Input String 3:", z)
fmt.Println("Input String 4:", w)
// Using the EqualFold Function
m := strings.Fields(x)
n := strings.Fields(y)
o := strings.Fields(z)
p := strings.Fields(w)
// Display the Fields Output
fmt.Println("Output String 1: ", m)
fmt.Println("Output String 2: ", n)
fmt.Println("Output String 3: ", o)
fmt.Println("Output String 4: ", p)
}Output
It will generate the following output −
Input String 1: Welcome to Golang Language Input String 2: Programming Language Input String 3: Object Oriented Programming Language Input String 4: Golang Programming Language Output String 1: [Welcome to Golang Language] Output String 2: [Programming Language] Output String 3: [Object Oriented Programming Language] Output String 4: [Golang Programming Language]
Updated on: 10-Mar-2022
671 Views
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