Created
November 17, 2020 07:12
-
-
Save karataev/902219003b4f4ddbbc6bdc8964cb546f to your computer and use it in GitHub Desktop.
A prototype to find possible valid IP addresses from a string
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| function getValidIpAddresses(str) { | |
| let result = []; | |
| for (let i = 1; i < str.length; i++) { | |
| let first = str.slice(0, i); | |
| if (first > 255) continue; | |
| let withoutFirst = str.slice(i); | |
| for (let j = 1; j < withoutFirst.length; j++) { | |
| let second = withoutFirst.slice(0, j); | |
| if (second > 255) continue; | |
| let withoutFirstSecond = withoutFirst.slice(j); | |
| for (let k = 1; k < withoutFirstSecond.length; k++) { | |
| let third = withoutFirstSecond.slice(0, k); | |
| if (third > 255) continue; | |
| let last = withoutFirstSecond.slice(k); | |
| if (last > 255) continue; | |
| let item = `${first}.${second}.${third}.${last}`; | |
| result.push(item); | |
| } | |
| } | |
| } | |
| return result; | |
| } | |
| console.clear(); | |
| console.log(getValidIpAddresses('19216811')); | |
| // ["1.92.168.11", "19.2.168.11", "19.21.68.11", "19.216.8.11", "19.216.81.1", "192.1.68.11", "192.16.8.11", "192.16.81.1", "192.168.1.1"] |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment