react-native-web/src/exports/StyleSheet/compiler/normalizeValueWithProperty.js

React Native for Web

/**
 * Copyright (c) Nicolas Gallagher.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @flow strict-local
 */

import unitlessNumbers from './unitlessNumbers';
import normalizeColor from './normalizeColor';

const colorProps = {
  backgroundColor: true,
  borderColor: true,
  borderTopColor: true,
  borderRightColor: true,
  borderBottomColor: true,
  borderLeftColor: true,
  color: true,
  shadowColor: true,
  textDecorationColor: true,
  textShadowColor: true
};

export default function normalizeValueWithProperty(
  value: any,
  property?: ?string
): any {
  let returnValue = value;
  if (
    (property == null || !unitlessNumbers[property]) &&
    typeof value === 'number'
  ) {
    returnValue = `${value}px`;
  } else if (property != null && colorProps[property]) {
    returnValue = normalizeColor(value);
  }
  return returnValue;
}