bladerunner2020

env:
  commonjs: false
  es6: false
  node: true
  jest: true
globals:
  $: readonly
  createSharedVariable: readonly
  Atomics: readonly
  SharedArrayBuffer: readonly

bladerunner2020

if (!Array.prototype.indexOf) {

    Array.prototype.indexOf = function(searchElement, fromIndex) {
        var k;
        
        if (this == null) {
            throw new TypeError('"this" is null or not defined');
        }

        var O = Object(this);