Go Program to check string contains Alphabetic, numeric and special characters. In this program we will learn how to check string contains Alphabetic, numeric and special characters. alphabetic characters – each character contains a letter from lowercase.
Go Program To Check String Contains Alphabetic,Numeric and Special Characters
Example 1: To check if a string contains alphabetic characters
Check each character for lowercase and uppercase values and return true for Alphabetic and false – not alphabetic
Source Code
package main
import (
"fmt"
)
func checkStringAlphabet(str string) bool {
for _, charVariable := range str {
if (charVariable < 'a' || charVariable > 'z') && (charVariable < 'A' || charVariable > 'Z') {
return false
}
}
return true
}
func main() {
fmt.Println(checkStringAlphabet("Insheera")) // true
fmt.Println(checkStringAlphabet("4286")) // false
}Output
Example 2: To check if a string contains alphabetic characters using Regular Expression
Golang using regex standard inbuilt package. This includes regular expressions and pattern matching First regular expression pattern is compiled using MustCompile function and returns an object. with this object, MatchString is used to check matched string Regular Expression used as regexp
Source Code
package main
import (
"fmt"
)
func checkStringAlphabet(str string) bool {
for _, charVariable := range str {
if (charVariable < 'a' || charVariable > 'z') && (charVariable < 'A' || charVariable > 'Z') {
return false
}
}
return true
}
func main() {
fmt.Println(checkStringAlphabet("Insheera")) // true
fmt.Println(checkStringAlphabet("4286")) // false
}Output
