Function formatRaw

lib/internal/util/inspect.js:1206–1500

(ctx, value, recurseTimes, typedArray)

}

function formatRaw(ctx, value, recurseTimes, typedArray) {
  let keys;
  let protoProps;
  if (ctx.showHidden && (recurseTimes <= ctx.depth || ctx.depth === null)) {
    protoProps = [];
  }

  const constructor = getConstructorName(value, ctx, recurseTimes, protoProps);
  // Reset the variable to check for this later on.
  if (protoProps !== undefined && protoProps.length === 0) {
    protoProps = undefined;
  }

  let tag = '';

  try {
    tag = value[SymbolToStringTag];
  } catch {
    // Ignore error.
  }

  // Only list the tag in case it's non-enumerable / not an own property.
  // Otherwise we'd print this twice.
  if (typeof tag !== 'string' ||
      (tag !== '' &&
      (ctx.showHidden ?
        ObjectPrototypeHasOwnProperty :
        ObjectPrototypePropertyIsEnumerable)(
        value, SymbolToStringTag,
      ))) {
    tag = '';
  }
  let base = '';
  let formatter = getEmptyFormatArray;
  let braces;
  let noIterator = true;
  let i = 0;
  const filter = ctx.showHidden ? ALL_PROPERTIES : ONLY_ENUMERABLE;

  let extrasType = kObjectType;
  let extraKeys;

  // Iterators and the rest are split to reduce checks.
  // We have to check all values in case the constructor is set to null.
  // Otherwise it would not possible to identify all types properly.
  if (SymbolIterator in value || constructor === null) {
    noIterator = false;
    if (ArrayIsArray(value)) {
      // Only set the constructor for non ordinary ("Array [...]") arrays.
      const prefix = (constructor !== 'Array' || tag !== '') ?
        getPrefix(constructor, tag, 'Array', `(${value.length})`) :
        '';
      keys = getOwnNonIndexProperties(value, filter);
      braces = [`${prefix}[`, ']'];
      if (value.length === 0 && keys.length === 0 && protoProps === undefined)
        return `${braces[0]}]`;
      extrasType = kArrayExtrasType;
      formatter = formatArray;