How to use Split and Validate In Javascript
This approach splits the string by periods or colons and validates each part individually.
Example: This example describes the validation of IP address format for the string using Split and Validate.
function validIpAddress(ip) {
const parts = ip.split(/[.:]/);
if (parts.length === 4) {
// Check IPv4 parts
for (const part of parts) {
const num = parseInt(part);
if (isNaN(num) || num < 0 || num > 255) {
return false;
}
}
return true;
} else if (parts.length === 8) {
// Check IPv6 parts
for (const part of parts) {
if (!/^[0-9a-fA-F]{1,4}$/.test(part)) {
return false;
}
}
return true;
}
return false;
}
const ipAddress = "2001:0db8:85a3:0000:0000:8a2e:0370:7334";
console.log(validIpAddress(ipAddress));
Output
true
How to check if a string is a valid IP address format in JavaScript ?
In this article, we will see how to check if a string is a valid IP address or not. An IP address is a unique identifier assigned to each device connected to a computer network that uses the Internet Protocol for communication. There are two common formats for IP addresses: IPv4 and IPv6. Checking if a string is a valid IP address format in JavaScript involves verifying if the string follows the rules for a standard IPv4 or IPv6 address.
These are the methods to check if a string is a valid IP address format in JavaScript:
Table of Content
- Using Split and Validate
- Using Library Functions
- Using net Module (Node.js specific):
- Using Built-in Methods:
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