Regexp

• Regexp
  • Remove all numbers from a string

Remove all numbers from a string

In order to remove all number from a string we could have used replaceAll in loop while replacing int i from 0 to 9. And for some reason it’s faster But one better way is to use regex. Sample of which is given below

package main

import (
    "log"
    "regexp"
)

func main() {
    log.Println("Using regexp to remove numbers from string")
    sample := "ThisIsASampleStringWithNumbersFrom0To9InOrder0123456789AndThat'sIt"
    numbersRegExp := regexp.MustCompile("[0-9]+")
    op := numbersRegExp.ReplaceAllString(sample, "")
    log.Println(op)
}

Click here to run this code

Now what we have done here is:

1. We have created a regexp that identifies all the numbers using regexp.MustCompile("[0-9]+")
2. Then we are using it as replacement in sample string with blanks using numbersRegExp.ReplaceAllString(sample, "")

That’s it! in simple 2 steps you get your work done.