42 lines
946 B
JavaScript
42 lines
946 B
JavaScript
"use strict";
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var regexes = {
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ipv4: /^(?:(?:\d|[1-9]\d|1\d{2}|2[0-4]\d|25[0-5])\.){3}(?:\d|[1-9]\d|1\d{2}|2[0-4]\d|25[0-5])$/,
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ipv6: /^((?=.*::)(?!.*::.+::)(::)?([\dA-F]{1,4}:(:|\b)|){5}|([\dA-F]{1,4}:){6})((([\dA-F]{1,4}((?!\3)::|:\b|$))|(?!\2\3)){2}|(((2[0-4]|1\d|[1-9])?\d|25[0-5])\.?\b){4})$/i
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};
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function not(func) {
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return function () {
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return !func.apply(null, Array.prototype.slice.call(arguments));
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};
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}
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function existy(value) {
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return value != null;
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}
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function ip(value) {
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return existy(value) && regexes.ipv4.test(value) || regexes.ipv6.test(value);
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}
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function object(value) {
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return Object(value) === value;
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}
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function string(value) {
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return Object.prototype.toString.call(value) === '[object String]';
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}
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var is = {
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existy: existy,
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ip: ip,
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object: object,
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string: string,
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not: {
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existy: not(existy),
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ip: not(ip),
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object: not(object),
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string: not(string)
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}
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};
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module.exports = is; |