volva/dist/types.js

Easier type checks for JS/TS variables.

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getType = void 0;
const arrays_1 = __importDefault(require("./arrays"));
const bigints_1 = __importDefault(require("./bigints"));
const floats_1 = __importDefault(require("./floats"));
const integers_1 = __importDefault(require("./integers"));
const maps_1 = __importDefault(require("./maps"));
const objects_1 = __importDefault(require("./objects"));
const functions_1 = __importDefault(require("./functions"));
const sets_1 = __importDefault(require("./sets"));
const symbols_1 = __importDefault(require("./symbols"));
const types_1 = require("./constants/types");
/**
 * Provides exact type of variable.
 * 'typeof' doesnt tell apart type of number etc.
 */
const getType = (input) => {
    if (input === undefined)
        throw new Error('Missing argument');
    const type = typeof input;
    /**
     * Strings & bools require no extra checks.
     */
    if (type === types_1.STRING) {
        return types_1.STRING;
    }
    if (type === types_1.BOOLEAN) {
        return types_1.BOOLEAN;
    }
    /**
     * Numerals, arrays & objects can be
     * misinterpreted via typeof.
     *
     * Return more specific types.
     */
    if (type === types_1.NUMBER) {
        if ((0, integers_1.default)(input)) {
            return types_1.INTEGER;
        }
        if ((0, floats_1.default)(input)) {
            return types_1.FLOAT;
        }
        return types_1.NAN;
    }
    // Arrays.
    if ((0, arrays_1.default)(input)) {
        return types_1.ARRAY;
    }
    // Objects.
    if ((0, objects_1.default)(input)) {
        return types_1.OBJECT;
    }
    // Null
    if (input === null) {
        return types_1.NULL;
    }
    // Function
    if ((0, functions_1.default)(input)) {
        return types_1.FUNCTION;
    }
    // Map
    if ((0, maps_1.default)(input)) {
        return types_1.MAP;
    }
    // Set
    if ((0, sets_1.default)(input)) {
        return types_1.SET;
    }
    // Bigint
    if ((0, bigints_1.default)(input)) {
        return types_1.BIGINT;
    }
    // Symbol
    if ((0, symbols_1.default)(input)) {
        return types_1.SYMBOL;
    }
    return type;
};
exports.getType = getType;
exports.default = exports.getType;
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