@dillonkearns/elm-graphql/examples/src/subscription/node_modules/@jumpn/utils-array/compat/cjs/resolveIndex.js

<img src="https://cdn.jsdelivr.net/gh/martimatix/logo-graphqelm/logo.svg" alt="dillonearns/elm-graphql logo" width="40%" align="right">

'use strict';

function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }

var _newArrowCheck = _interopDefault(require('babel-runtime/helpers/newArrowCheck'));
var Fun = require('flow-static-land/lib/Fun');

var _this = undefined;

/**
 * Returns an absolute index from a relative one.
 * 
 * Relative indexes differ from absolute ones in that they can be negative and
 * in those cases it would be as simple as substracting them from the length of
 * the array from where they belong to obtain their absolute counterparts.
 */
var resolveIndex = function (array, relativeIndex) {
  _newArrowCheck(this, _this);

  return relativeIndex < 0 ? array.length - relativeIndex : relativeIndex;
}.bind(undefined);

var resolveIndex$1 = Fun.curry(resolveIndex);

module.exports = resolveIndex$1;