@newdash/newdash/isClass.js

javascript/typescript utility library

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.isNativeClass = exports.isClass = void 0;
const isEmpty_1 = require("./isEmpty");
/**
 * @ignore
 * @internal
 * @private
 */
const nativeClasses = [
    Array,
    Int8Array,
    Uint8Array,
    Uint8ClampedArray,
    Int16Array,
    Uint16Array,
    Int32Array,
    Uint32Array,
    Float32Array,
    Float64Array,
    BigInt64Array,
    BigUint64Array,
    globalThis.SharedArrayBuffer,
    DataView,
    Date,
    BigInt,
    ArrayBuffer,
    RegExp,
    Symbol,
    Map,
    WeakMap,
    Set,
    WeakSet,
    Promise,
    Proxy,
    Number,
    String,
    Error,
    EvalError,
    RangeError
].filter((v) => v !== undefined);
/**
 * check if `value` is `Class` object
 *
 * the `Function` will return `false`
 *
 * @since 5.15.0
 * @category Lang
 *
 * @param obj
 *
 * ```js
 * class A {}
 * function a() {}
 * isClass(A) // => true
 * isClass(a) // => false
 * ```
 */
function isClass(obj) {
    if (obj === undefined || obj === null) {
        return false;
    }
    if (typeof obj === "function" && typeof obj?.constructor === "function") {
        if (/^class [\s\S]*?$/.test(Function.prototype.toString.call(obj))) {
            return true;
        }
        if (isNativeClass(obj)) {
            return true;
        }
    }
    if (typeof obj === "function" && !(0, isEmpty_1.isEmpty)(obj.prototype)) {
        return true;
    }
    return false;
}
exports.isClass = isClass;
/**
 * check a class is native class or not
 * @category Lang
 * @since 5.18.0
 * @param c class type
 */
function isNativeClass(c) {
    return nativeClasses.includes(c);
}
exports.isNativeClass = isNativeClass;