export function deepExtend()

in authui-container/src/utils/index.ts [146:181]

• 27 lines of code
• 8 McCabe index (conditional complexity)

export function deepExtend(target: any, source: any): any {
  if (!(source instanceof Object)) {
    return source;
  }
  switch (source.constructor) {
    case Date:
      // Treat Dates like scalars; if the target date object had any child
      // properties - they will be lost!
      const dateValue = (source as any) as Date;
      return new Date(dateValue.getTime());

    case Object:
      if (target === undefined) {
        target = {};
      }
      break;

    case Array:
      // Always copy the array source and overwrite the target.
      target = [];
      break;

    default:
      // Not a plain Object - treat it as a scalar.
      return source;
  }

  for (const prop in source) {
    if (!source.hasOwnProperty(prop)) {
      continue;
    }
    target[prop] = deepExtend(target[prop], source[prop]);
  }

  return target;
}