prepack/lib/intrinsics/ecma262/parseFloat.js

Execute a JS bundle, serialize global state and side effects to a snapshot that can be quickly restored.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = _default;

var _index = require("../../values/index.js");

var _singletons = require("../../singletons.js");

/**
 * Copyright (c) 2017-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

/*  strict-local */
function _default(realm) {
  // ECMA262 18.2.4
  return new _index.NativeFunctionValue(realm, "parseFloat", "parseFloat", 1, (context, [string]) => {
    if (!string) return realm.intrinsics.NaN; // 1. Let inputString be ? ToString(string).

    let inputString = _singletons.To.ToStringPartial(realm, string);

    return new _index.NumberValue(realm, parseFloat(inputString));
  }, false);
}
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