How to get Substring after Specific Character in Go - Step by Step Examples

How to get Substring after Specific Character in Go ?

Answer

To get the substring after a specific character in Go, you can use the strings.SplitAfterN function to get the string after the specified character. strings.SplitAfterN takes the string, delimiter, and number of splits as arguments, and splits the string by the delimiter into specified number of splits. Since we need the string after the delimiter, we split the string with the specified character or substring as delimiter into two parts. The second part of the split is our required substring.

✐ Examples

1 Substring After ',' in "Hello,World"

In this example,

We import the strings package.
We create a variable named str with a value of "Hello,World".
We split the string using strings.SplitAfterN with ',' as the separator and 2 as the maximum number of splits.
Finally, we access the second element of the resulting slice to get the substring.

Go Program

package main

import (
    "fmt"
    "strings"
)

func main() {
    str := "Hello,World"
    parts := strings.SplitAfterN(str, ",", 2)
    fmt.Println("Substring after ',': ", parts[1])
}

Output

Substring after ',':  World

2 Substring After '/' in "https://example.com/page"

In this example,

We import the strings package.
We create a variable named url with a value of "https://example.com/page".
We split the string using strings.SplitAfterN with '/' as the separator and 2 as the maximum number of splits.
Finally, we access the second element of the resulting slice to get the substring.

Go Program

package main

import (
    "fmt"
    "strings"
)

func main() {
    url := "https://example.com/page"
    parts := strings.SplitAfterN(url, "/", 2)
    fmt.Println("Substring after '/': ", parts[1])
}

Output

Substring after '/':  /example.com/page

Summary

In this tutorial, we learned how to get Substring after Specific Character in Go language, using strings.SplitAfterN function, with well detailed examples.

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How to get Substring after Specific Character in Go - Step by Step Examples