# 1108. Defanging an IP Address

Given a valid (IPv4) IP `address`, return a defanged version of that IP address.

A defanged IP address replaces every period `"."` with `"[.]"`.

**Example 1:**

Input: address = "1.1.1.1"
Output: "1[.]1[.]1[.]1"

**Example 2:**

Input: address = "255.100.50.0"
Output: "255[.]100[.]50[.]0"

**Constraints:**

The given `address` is a valid IPv4 address.

## solution

這就只是將 . 改為 [.] 而已，簡單的字串替換，沒什麼難的。

func defangIPaddr(address string) string {
    
    ip := strings.Replace(address, ".", "[.]", -1)
    
    return ip
}