Golang Tutorial
Fundamentals
Control Statements
Functions & Methods
Structure
Arrays & Slices
String
Pointers
Interfaces
Concurrency
Splitting a string in Go is a common operation, and the Go standard library provides the strings package to help with such string manipulations. One of the most frequently used functions to split a string is strings.Split().
Here's a tutorial on how to split strings in Go:
Using strings.Split(), you can split a string into a slice of substrings based on a delimiter.
package main
import (
"fmt"
"strings"
)
func main() {
s := "apple,banana,cherry"
parts := strings.Split(s, ",")
fmt.Println(parts) // [apple banana cherry]
}
The strings.Fields() function splits a string based on whitespace characters.
package main
import (
"fmt"
"strings"
)
func main() {
s := "apple banana cherry"
parts := strings.Fields(s)
fmt.Println(parts) // [apple banana cherry]
}
If you want to split a string only at the first instance of a delimiter, you can use strings.SplitN() with n=2.
package main
import (
"fmt"
"strings"
)
func main() {
s := "apple,banana,cherry,grape"
parts := strings.SplitN(s, ",", 2)
fmt.Println(parts) // [apple banana,cherry,grape]
}
To split a string after a delimiter, use the strings.SplitAfter() function.
package main
import (
"fmt"
"strings"
)
func main() {
s := "apple,banana,cherry"
parts := strings.SplitAfter(s, ",")
fmt.Println(parts) // [apple, banana, cherry]
}
To split a string into lines, you can use the strings.Split() function with a newline character as the delimiter.
package main
import (
"fmt"
"strings"
)
func main() {
s := "apple\nbanana\ncherry"
parts := strings.Split(s, "\n")
fmt.Println(parts) // [apple banana cherry]
}
The strings package in Go provides several functions to split strings.
strings.Split() is commonly used to split a string by a given delimiter.
strings.Fields() is useful for splitting a string into words.
strings.SplitN() allows you to split a string based on a delimiter but limits the number of splits.
strings.SplitAfter() splits the string after a given delimiter.
By using these functions, you can easily manage and manipulate strings in Go to fit various application needs.
Golang split string example:
Description: Introduction to splitting strings in Golang.
Code:
package main
import (
"fmt"
"strings"
)
func main() {
originalString := "apple,orange,banana"
delimiter := ","
result := strings.Split(originalString, delimiter)
fmt.Println("Original String:", originalString)
fmt.Println("Split Result:", result)
}
Splitting a string in Golang by delimiter:
Description: Splitting a string in Golang using a specified delimiter.
Code:
package main
import (
"fmt"
"strings"
)
func main() {
originalString := "apple,orange,banana"
delimiter := ","
result := strings.Split(originalString, delimiter)
fmt.Println("Original String:", originalString)
fmt.Println("Split Result:", result)
}
How to split a string into substrings in Golang:
Description: Demonstrating how to split a string into substrings in Golang.
Code:
package main
import (
"fmt"
"strings"
)
func main() {
originalString := "apple orange banana"
result := strings.Fields(originalString)
fmt.Println("Original String:", originalString)
fmt.Println("Split Result:", result)
}
Using the strings.Split() function in Golang:
Description: Utilizing the strings.Split() function to split a string in Golang.
Code:
package main
import (
"fmt"
"strings"
)
func main() {
originalString := "apple,orange,banana"
delimiter := ","
result := strings.Split(originalString, delimiter)
fmt.Println("Original String:", originalString)
fmt.Println("Split Result:", result)
}
Splitting a string into an array in Golang:
Description: Splitting a string into an array in Golang.
Code:
package main
import (
"fmt"
"strings"
)
func main() {
originalString := "apple,orange,banana"
delimiter := ","
result := strings.Split(originalString, delimiter)
fmt.Println("Original String:", originalString)
fmt.Println("Split Result:", result)
}
Golang split string by whitespace or space:
Description: Splitting a string in Golang by whitespace or space.
Code:
package main
import (
"fmt"
"strings"
)
func main() {
originalString := "apple orange banana"
result := strings.Fields(originalString)
fmt.Println("Original String:", originalString)
fmt.Println("Split Result:", result)
}
Custom string splitting functions in Golang:
Description: Implementing custom string splitting functions in Golang.
Code:
package main
import (
"fmt"
"strings"
)
func customSplit(input string, delimiter string) []string {
var result []string
current := ""
for _, char := range input {
if strings.ContainsRune(delimiter, char) {
if current != "" {
result = append(result, current)
}
current = ""
} else {
current += string(char)
}
}
if current != "" {
result = append(result, current)
}
return result
}
func main() {
originalString := "apple,orange,banana"
delimiter := ","
result := customSplit(originalString, delimiter)
fmt.Println("Original String:", originalString)
fmt.Println("Custom Split Result:", result)
}
Splitting a string and handling empty elements in Golang:
Description: Splitting a string in Golang and handling empty elements.
Code:
package main
import (
"fmt"
"strings"
)
func main() {
originalString := "apple,,orange,,banana"
delimiter := ","
result := strings.Split(originalString, delimiter)
fmt.Println("Original String:", originalString)
fmt.Println("Split Result with Empty Elements:", result)
}
Efficient ways to split strings in Golang:
Description: Exploring efficient techniques for splitting strings in Golang.
Code:
package main
import (
"fmt"
"strings"
)
func main() {
originalString := "apple,orange,banana"
delimiter := ","
result := strings.Split(originalString, delimiter)
fmt.Println("Original String:", originalString)
fmt.Println("Split Result:", result)
}
Golang regex-based string splitting:
Description: Using regex for string splitting in Golang.
Code:
package main
import (
"fmt"
"regexp"
)
func main() {
originalString := "apple,orange,banana"
regex := regexp.MustCompile(",")
result := regex.Split(originalString, -1)
fmt.Println("Original String:", originalString)
fmt.Println("Regex Split Result:", result)
}