@formily/shared/esm/instanceof.js

> Formily 工具函数集

import { globalThisPolyfill } from './global';
import { isStr, isFn } from './checkers';
export var instOf = function (value, cls) {
    if (isFn(cls))
        return value instanceof cls;
    if (isStr(cls)) {
        return globalThisPolyfill[cls]
            ? value instanceof globalThisPolyfill[cls]
            : false;
    }
    return false;
};
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