@newdash/newdash/.internal/getTag.js

javascript/typescript utility library

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getTag = void 0;
const GLOBAL_1 = require("./GLOBAL");
const nullTag = '[object Null]';
const undefinedTag = '[object Undefined]';
/**
 * @ignore
 * @param value
 */
function getRawTag(value) {
    var isOwn = Object.prototype.hasOwnProperty.call(value, Symbol.toStringTag);
    const tag = value[Symbol.toStringTag];
    try {
        value[Symbol.toStringTag] = undefined;
        var unmasked = true;
    }
    catch (e) { }
    var result = Object.prototype.toString.call(value);
    if (unmasked) {
        if (isOwn) {
            value[GLOBAL_1.symToStringTag] = tag;
        }
        else {
            delete value[GLOBAL_1.symToStringTag];
        }
    }
    return result;
}
/**
 * Gets the `toStringTag` of `value`.
 *
 * @private
 * @param value The value to query.
 * @returns Returns the `toStringTag`.
 */
function getTag(value) {
    if (value == null) {
        return value === undefined ? undefinedTag : nullTag;
    }
    return (GLOBAL_1.symToStringTag && GLOBAL_1.symToStringTag in Object(value))
        ? getRawTag(value)
        : Object.prototype.toString.call(value);
}
exports.getTag = getTag;
exports.default = getTag;