@salesforce/design-system-react/module/utilities/key-buffer.js

Salesforce Lightning Design System for React

/* Copyright (c) 2015-present, salesforce.com, inc. All rights reserved */

/* Licensed under BSD 3-Clause - see LICENSE.txt or git.io/sfdc-license */
function KeyBuffer() {
  var _this = this;

  this.buffer = '';
  return function (key) {
    if (_this.timeout) {
      clearTimeout(_this.timeout);
      _this.timeout = undefined;
    }

    _this.timeout = setTimeout(function () {
      _this.buffer = '';
    }, 400);
    _this.buffer = _this.buffer + key;
    return _this.buffer;
  };
}

export default KeyBuffer;
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