util-helpers/lib/isIPv4.js

一个基于业务场景的工具方法库

'use strict';

var ut2 = require('ut2');

var reg = /^((\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])$/;
function isIPv4(value) {
    var valueStr = ut2.toString(value);
    return reg.test(valueStr);
}

module.exports = isIPv4;