@feugene/mu/src/is/isBuffer.ts

Helpful TS utilities without dependencies

import root from '~/internal/root'

/** Detect free variable `exports`. */
const freeExports = typeof exports === 'object' && exports && !exports.nodeType && exports

/** Detect free variable `module`. */
const freeModule = freeExports && typeof module == 'object' && module && !('nodeType' in module) && module

/** Detect the popular CommonJS extension `module.exports`. */
const moduleExports = freeModule && freeModule.exports === freeExports

/** Built-in value references. */
const Buffer = moduleExports ? root.Buffer : undefined

/* Built-in method references for those with the same name as other `lodash` methods. */
const nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined

/**
 * Checks if `value` is a buffer.
 *
 * @example
 *
 * isBuffer(new Buffer(2));
 * // => true
 *
 * isBuffer(new Uint8Array(2));
 * // => false
 */
export default nativeIsBuffer || (() => false)