es.uint8-array.to-hex.js 1.1 KB

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  1. 'use strict';
  2. var $ = require('../internals/export');
  3. var globalThis = require('../internals/global-this');
  4. var uncurryThis = require('../internals/function-uncurry-this');
  5. var anUint8Array = require('../internals/an-uint8-array');
  6. var notDetached = require('../internals/array-buffer-not-detached');
  7. var numberToString = uncurryThis(1.1.toString);
  8. var Uint8Array = globalThis.Uint8Array;
  9. var INCORRECT_BEHAVIOR_OR_DOESNT_EXISTS = !Uint8Array || !Uint8Array.prototype.toHex || !(function () {
  10. try {
  11. var target = new Uint8Array([255, 255, 255, 255, 255, 255, 255, 255]);
  12. return target.toHex() === 'ffffffffffffffff';
  13. } catch (error) {
  14. return false;
  15. }
  16. })();
  17. // `Uint8Array.prototype.toHex` method
  18. // https://github.com/tc39/proposal-arraybuffer-base64
  19. if (Uint8Array) $({ target: 'Uint8Array', proto: true, forced: INCORRECT_BEHAVIOR_OR_DOESNT_EXISTS }, {
  20. toHex: function toHex() {
  21. anUint8Array(this);
  22. notDetached(this.buffer);
  23. var result = '';
  24. for (var i = 0, length = this.length; i < length; i++) {
  25. var hex = numberToString(this[i], 16);
  26. result += hex.length === 1 ? '0' + hex : hex;
  27. }
  28. return result;
  29. }
  30. });