Function createCore has 265 lines of code (exceeds 25 allowed). Consider refactoring.

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const createCore = function () {
    const core = {};

    core.paused = false;
    core.moduleInstances = new Map();

File saved_drawings.js has 515 lines of code (exceeds 250 allowed). Consider refactoring.

Open

export {
    abstractLines,
    snowMan,
    flower,
};

File prebuilts.js has 511 lines of code (exceeds 250 allowed). Consider refactoring.

Open

export {blinker, glider, leightWeightSpaceShip};
const leightWeightSpaceShip = [
    [
      0,
      1,

Function createCore has a Cognitive Complexity of 24 (exceeds 5 allowed). Consider refactoring.

Open

const createCore = function () {
    const core = {};

    core.paused = false;
    core.moduleInstances = new Map();

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File core.js has 291 lines of code (exceeds 250 allowed). Consider refactoring.

Open

// @ts-check
export { createCore, ALL, ERROR, prepareWorkerCode };
export { startEventRecorder, stopEventRecorder } from "./eventRecorder.js";
export { replayEvents } from "./eventPlayer.js";
export { useDefaultLogging } from "./logging.js";

Function startUiInput has 54 lines of code (exceeds 25 allowed). Consider refactoring.

Open

const startUiInput = function (emitter, instance) {
    let paused = false;
    const pauseButton = document.getElementById(`pause`);
    const pauseAction = function () {
        if (paused) {

Function listenForWorkerMessage has 47 lines of code (exceeds 25 allowed). Consider refactoring.

Open

        listenForWorkerMessage(name, worker, resolve, earlyWrapper) {
            worker.addEventListener(`message`, function (messageEvent)  {
                const message = messageEvent.data;
                if (!Object.prototype.hasOwnProperty.call(message, CORE_ACTION_KEY)) {
                    return;

Function startWorker has 38 lines of code (exceeds 25 allowed). Consider refactoring.

Open

        startWorker(moduleUrl, name, data, workerReady) {
            
            const earlyWrapper = {
                module: moduleUrl,
                name,

Function start has 33 lines of code (exceeds 25 allowed). Consider refactoring.

Open

        start(module, { 
            name = Symbol(),
            data = undefined,
            worker = false,
            workerReady = false,

Function sumNeighbors has 5 arguments (exceeds 4 allowed). Consider refactoring.

Open

const sumNeighbors = function (cells, w, h, x, y) {

Avoid too many return statements within this function.

Open

                    return;

Avoid too many return statements within this function.

Open

        return;

Avoid too many return statements within this function.

Open

            return;

Avoid too many return statements within this function.

Open

        return;

Avoid too many return statements within this function.

Open

                    return;

Avoid too many return statements within this function.

Open

        return;

Avoid too many return statements within this function.

Open

                    return;

Function nextGeneration has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

const nextGeneration = function (grid, neighborCounts) {
  grid.forEach(function(rowArray, yIndex) {
    rowArray.forEach(function(cellState, xIndex) {
      // const cellState = grid[yIndex][xIndex];
      const count = neighborCounts[yIndex][xIndex];

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