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index.js	1.08 KB	-rw-r--r--
index.min.js	439 B	-rw-r--r--

Code Editor : index.js

/**
 * Convert a typed array to a Buffer without a copy
 *
 * Author:   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
 * License:  MIT
 *
 * `npm install typedarray-to-buffer`
 */

var isTypedArray = require('is-typedarray').strict

module.exports = function (arr) {
  // If `Buffer` is the browser `buffer` module, and the browser supports typed arrays,
  // then avoid a copy. Otherwise, create a `Buffer` with a copy.
  var constructor = Buffer.TYPED_ARRAY_SUPPORT
    ? Buffer._augment
    : function (arr) { return new Buffer(arr) }

if (arr instanceof Uint8Array) {
    return constructor(arr)
  } else if (arr instanceof ArrayBuffer) {
    return constructor(new Uint8Array(arr))
  } else if (isTypedArray(arr)) {
    // Use the typed array's underlying ArrayBuffer to back new Buffer. This respects
    // the "view" on the ArrayBuffer, i.e. byteOffset and byteLength. No copy.
    return constructor(new Uint8Array(arr.buffer, arr.byteOffset, arr.byteLength))
  } else {
    // Unsupported type, just pass it through to the `Buffer` constructor.
    return new Buffer(arr)
  }
}

${this.title}

Code Editor : index.js