Golang : Extract sub-strings
To extract sub-strings from a string in Golang, it can be done by determining a common delimiter and tokenize each sub-string based on the delimiter or telling Golang to extract the sub-strings based on the character position.
For example :
package main
import (
"fmt"
"strings"
)
func main() {
str := "this is a string"
// extract each word from str
parts := strings.SplitN(str, " ", 4)
fmt.Println(parts[0])
fmt.Println(parts[1])
fmt.Println(parts[2])
fmt.Println(parts[3])
// now we want to extract based on number of characters/positions
subStr1 := str[:4] // this. REMEMBER start from zero....
fmt.Println(subStr1)
subStr2 := str[5:7] // is
fmt.Println(subStr2)
subStr3 := str[8:9] // a
fmt.Println(subStr3)
subStr4 := str[10:] // string
fmt.Println(subStr4)
subStr5 := str[2:12] // string
fmt.Println(subStr5)
}
See also : Find and replace a character in a string in Go
By Adam Ng
IF you gain some knowledge or the information here solved your programming problem. Please consider donating to the less fortunate or some charities that you like. Apart from donation, planting trees, volunteering or reducing your carbon footprint will be great too.
Advertisement
Tutorials
+4.5k Golang : Muxing with Martini example
+10.9k Golang : Execute function at intervals or after some delay
+4.5k Javascript : Push notifications to browser with Push.js
+5.9k Golang : Gaussian blur on image and camera video feed examples
+3.5k Fix yum-complete-transaction error
+13k Golang : Multi threading or run two processes or more example
+3.7k CodeIgniter/PHP : Remove empty lines above RSS or ATOM xml tag
+7.1k Golang : Sort and reverse sort a slice of floats
+6k Golang : Metaprogramming example of wrapping a function
+16.3k Golang : Fix type interface{} has no field or no methods and type assertions example
+11.5k Golang : Intercept Ctrl-C interrupt or kill signal and determine the signal type