abolish/validators/array/inArray.js

A javascript object validator.

"use strict";
const types_checker_1 = require("../../src/types-checker");
module.exports = {
    name: "inArray",
    description: "Check that a value is in an array",
    error: ":param does not exists in array [:option]",
    validator: (value, option) => {
        (0, types_checker_1.assertType)(option, ["array", "function"]);
        /**
         * if option is a function
         * we run the function and check if the result is in the array
         */
        if (typeof option === "function") {
            const result = option(value);
            if (typeof result === "boolean")
                return result;
            else if (Array.isArray(result)) {
                option = result; // We replace the option with the result
            }
        }
        // Now we are sure that option is an array
        // we can loop through the array and check if the value is in the array
        for (let i = 0; i < option.length; i++) {
            if (option[i] === value)
                return true;
        }
        return false;
    }
};