How to Remove All Whitespace Characters from a String in Go - Step by Step Examples

How to Remove All Whitespace Characters from a String in Go ?

Answer

To remove all whitespace characters from a string in Go, you can use the strings.ReplaceAll function in combination with strings.Fields and strings.Join.


✐ Examples

1 Remove All Whitespace Characters from a String

In this example,

  1. We import the fmt and strings packages.
  2. We define a function named removeWhitespace that takes a string input as a parameter.
  3. Inside the function, we use the strings.Fields function to split the input string into a slice of substrings, removing any whitespace characters.
  4. We then use the strings.Join function to concatenate these substrings into a single string without any whitespace.
  5. We return the resulting string from the function.
  6. In the main function, we define a string str with multiple types of whitespace characters.
  7. We call the removeWhitespace function with str and store the result in the variable result.
  8. Finally, we print the result to standard output.

Go Program

package main

import (
    "fmt"
    "strings"
)

func removeWhitespace(input string) string {
    return strings.Join(strings.Fields(input), "")
}

func main() {
    str := " Hello \t World \n with \t mixed \n whitespace "
    result := removeWhitespace(str)
    fmt.Println("String without whitespace:", result)
}

Output

String without whitespace: HelloWorldwithmixedwhitespace

2 Remove All Whitespace Characters from Another String

In this example,

  1. We import the fmt and strings packages.
  2. We define the same removeWhitespace function that takes a string input as a parameter.
  3. Inside the function, we use strings.Fields to split the input string into a slice of substrings, removing any whitespace characters.
  4. We then use strings.Join to concatenate these substrings into a single string without any whitespace.
  5. We return the resulting string from the function.
  6. In the main function, we define a different string str with various whitespace characters.
  7. We call the removeWhitespace function with str and store the result in the variable result.
  8. Finally, we print the result to standard output.

Go Program

package main

import (
    "fmt"
    "strings"
)

func removeWhitespace(input string) string {
    return strings.Join(strings.Fields(input), "")
}

func main() {
    str := "Go \n is \t awesome \t\n and \n fast"
    result := removeWhitespace(str)
    fmt.Println("String without whitespace:", result)
}

Output

String without whitespace: Goisawesomeandfast

Summary

In this tutorial, we learned How to Remove All Whitespace Characters from a String in Go language with well detailed examples.


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