iter-tools-es/impls/$flat/internal/validate-args.js

The iterable toolbox

const {
  isObject
} = require('../../is-object/is-object.js');

function validateArgs(args) {
  const depthOrOptions = args[1];
  let shouldFlat = args[2];
  let depth = depthOrOptions;

  if (isObject(depthOrOptions)) {
    ({
      shouldFlat,
      depth
    } = depthOrOptions);
  }

  args[2] = shouldFlat;
  args[1] = depth;
}

exports.validateArgs = validateArgs;