How to Trim a String in Go - Step by Step Examples

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How to Trim a String in Go ?

Answer

To trim a string in Go, you can use the Trim() function from the strings package.

✐ Examples

1 Trimming " Hello World "

In this example,

We import the strings package.
We declare a variable named str1 with a value of " Hello World ".
We then use the Trim() function from the strings package on str1 to remove leading and trailing whitespace characters.
Finally, we print the trimmed string.

Go Program

package main

import (
	"fmt"
	"strings"
)

func main() {
	str1 := "   Hello World   "
	trimmedStr1 := strings.Trim(str1, " ")
	fmt.Printf("Trimmed string is: '%s'\n", trimmedStr1)
}

Output

Trimmed string is: 'Hello World'

2 Trimming leading whitespace from " apple"

In this example,

We import the strings package.
We declare a variable named str2 with a value of " apple".
We then use the TrimLeft() function from the strings package on str2 to remove leading whitespace characters.
Finally, we print the trimmed string.

Go Program

package main

import (
	"fmt"
	"strings"
)

func main() {
	str2 := "   apple"
	trimmedStr2 := strings.TrimLeft(str2, " ")
	fmt.Printf("Trimmed string is: '%s'\n", trimmedStr2)
}

Output

Trimmed string is: 'apple'

3 Trimming trailing whitespace from "banana "

In this example,

We import the strings package.
We declare a variable named str3 with a value of "banana ".
We then use the TrimRight() function from the strings package on str3 to remove trailing whitespace characters.
Finally, we print the trimmed string.

Go Program

package main

import (
	"fmt"
	"strings"
)

func main() {
	str3 := "banana   "
	trimmedStr3 := strings.TrimRight(str3, " ")
	fmt.Printf("Trimmed string is: '%s'\n", trimmedStr3)
}

Output

Trimmed string is: 'banana'

Summary

In this tutorial, we learned How to Trim a String in Go language with well detailed examples.

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