@frauschert/ts-guard/lib/guards/isEnum/isEnum.js

ts-guard is a typescript library that provides composable type guards. Its inspired by zod but focusses only on type guards and is more lightweight.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.isEnum = isEnum;
const isNumber_1 = require("../isNumber/isNumber");
const isString_1 = require("../isString/isString");
const isUnion_1 = require("../isUnion/isUnion");
function isEnum(e) {
    const keys = Object.keys(e).filter((k) => !/^\d/.test(k));
    const values = keys.map((k) => e[k]);
    const isStringOrNumber = (0, isUnion_1.isUnion)([(0, isString_1.isString)(), (0, isNumber_1.isNumber)()]);
    return (x) => isStringOrNumber(x) && values.includes(x);
}
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