esnext.data-view.set-float16.js 964 B

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  1. 'use strict';
  2. var $ = require('../internals/export');
  3. var uncurryThis = require('../internals/function-uncurry-this');
  4. var classof = require('../internals/classof');
  5. var toIndex = require('../internals/to-index');
  6. var packIEEE754 = require('../internals/ieee754').pack;
  7. var f16round = require('../internals/math-f16round');
  8. var $TypeError = TypeError;
  9. // eslint-disable-next-line es/no-typed-arrays -- safe
  10. var setUint16 = uncurryThis(DataView.prototype.setUint16);
  11. // `DataView.prototype.setFloat16` method
  12. // https://github.com/tc39/proposal-float16array
  13. $({ target: 'DataView', proto: true }, {
  14. setFloat16: function setFloat16(byteOffset, value /* , littleEndian */) {
  15. if (classof(this) !== 'DataView') throw new $TypeError('Incorrect receiver');
  16. var offset = toIndex(byteOffset);
  17. var bytes = packIEEE754(f16round(value), 10, 2);
  18. return setUint16(this, offset, bytes[1] << 8 | bytes[0], arguments.length > 2 ? arguments[2] : false);
  19. }
  20. });