@linaria/utils/esm/isBoxedPrimitive.js

Blazing fast zero-runtime CSS in JS library

// There is a problem with using boxed numbers and strings in TS,
// so we cannot just use `instanceof` here

const constructors = ['Number', 'String'];
export function isBoxedPrimitive(o) {
  if (typeof o !== 'object' || o === null) return false;
  return constructors.includes(o.constructor.name) && typeof o?.valueOf() !== 'object';
}
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