Golang React JS Technology Blog

Replace first occurrence of string using Regexp

Example

package main

import (
	"fmt"
	"regexp"
)

func main() {
	strEx := "Php-Golang-Php-Python-Php-Kotlin"
	reStr := regexp.MustCompile("^(.*?)Php(.*)$")
	repStr := "${1}Java$2"
	output := reStr.ReplaceAllString(strEx, repStr)
	fmt.Println(output)
}

Output

Java-Golang-Php-Python-Php-Kotlin

Most Helpful This Week

Get Year, Month, Day, Hour, Min and Second from a specified date How to get the current date and time with timestamp in local and other timezones ? Regular expression to validate common Credit Card Numbers How to convert Go struct to JSON? How to get Dimensions of an image type jpg jpeg png or gif ? What is Rune? How to get ASCII value of any character in Go?

Most Helpful This Week

Copy an array by value and reference into another array Regular expression to extract DNS host-name or IP Address from string Runtime package variables Regular Expression to get a string between parentheses in Golang Replace numbers by zero from string Dynamic JSON parser without Struct in Golang Golang import package inside package How to use array in Go Programming Language?URL parser in Golang How to create Map using the make function in Go?