Regular expression to extract numbers from a string in Golang

Example

package main

import (
	"fmt"
	"regexp"
)

func main() {
	str1 := "Hello X42 I'm a Y-32.35 string Z30"

	re := regexp.MustCompile(`[-]?\d[\d,]*[\.]?[\d{2}]*`)

	fmt.Printf("Pattern: %v\n", re.String()) // Print Pattern

	fmt.Printf("String contains any match: %v\n", re.MatchString(str1)) // True

	submatchall := re.FindAllString(str1, -1)
	for _, element := range submatchall {
		fmt.Println(element)
	}
}

Output

Pattern: [-]?\d[\d,]*[\.]?[\d{2}]*
String contains any match: true
42
-32.35
30

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Regular expression to extract numbers from a string in Golang

Example

Output

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