@datadog/mobile-react-native-code-push/lib/module/utils.js

A client-side React Native module to interact with Appcenter Codepush and Datadog

/*
 * Unless explicitly stated otherwise all files in this repository are licensed under the Apache License Version 2.0.
 * This product includes software developed at Datadog (https://www.datadoghq.com/).
 * Copyright 2016-Present Datadog, Inc.
 */

/**
 * A constant used to define a property that should be discarded from a {@link RequiredOrDiscard} object.
 */
export const DISCARD_PROPERTY = {
  _dd_meta_: 'DISCARD'
};

/**
 * Used to change the type of every property of an object to be either required or {@link DISCARD_PROPERTY}.
 */

/**
 * Removes all entries of value {@link DISCARD_PROPERTY} from the given object
 * @param obj The object to remove the {@link DISCARD_PROPERTY} entries from.
 * @returns The object without the {@link DISCARD_PROPERTY} entries.
 */
export const removeDiscardProperties = obj => {
  const result = {};
  Object.keys(obj).forEach(key => {
    const value = obj[key];
    result[key] = value === DISCARD_PROPERTY ? undefined : value;
  });
  return result;
};
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