Consider simplifying this complex logical expression.

Open

        if ( !name ) {
            return type === 'emptyElement' || type === 'view:emptyElement' ||
                // From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.
                type === this.name || type === 'view:' + this.name ||
                type === 'element' || type === 'view:element' ||

Range has 24 functions (exceeds 20 allowed). Consider refactoring.

Open

export default class Range {
    /**
     * Creates a range spanning from `start` position to `end` position.
     *
     * **Note:** Constructor creates it's own {@link module:engine/view/position~Position} instances basing on passed values.

Function _next has a Cognitive Complexity of 19 (exceeds 5 allowed). Consider refactoring.

Open

    _next() {
        const previousPosition = this.position;
        const position = this.position.clone();
        const parent = this._visitedParent;

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Function _generateActionsFromChanges has a Cognitive Complexity of 19 (exceeds 5 allowed). Consider refactoring.

Open

function _generateActionsFromChanges( oldChildrenLength, changes ) {
    const actions = [];

    let offset = 0;
    let oldChildrenHandled = 0;

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Function insert has a Cognitive Complexity of 19 (exceeds 5 allowed). Consider refactoring.

Open

    insert( item, itemOrPosition, offset = 0 ) {
        this._assertWriterUsedCorrectly();

        if ( item instanceof Text && item.data == '' ) {
            return;

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Function addBorderRules has 64 lines of code (exceeds 25 allowed). Consider refactoring.

Open

export function addBorderRules( stylesProcessor ) {
    stylesProcessor.setNormalizer( 'border', borderNormalizer );

    // Border-position shorthands.
    stylesProcessor.setNormalizer( 'border-top', getBorderPositionNormalizer( 'top' ) );

Renderer has 23 functions (exceeds 20 allowed). Consider refactoring.

Open

export default class Renderer {
    /**
     * Creates a renderer instance.
     *
     * @param {module:engine/view/domconverter~DomConverter} domConverter Converter instance.

Differ has 23 functions (exceeds 20 allowed). Consider refactoring.

Open

export default class Differ {
    /**
     * Creates a `Differ` instance.
     *
     * @param {module:engine/model/markercollection~MarkerCollection} markerCollection Model's marker collection.

Function findCorrespondingViewText has a Cognitive Complexity of 18 (exceeds 5 allowed). Consider refactoring.

Open

    findCorrespondingViewText( domText ) {
        if ( isInlineFiller( domText ) ) {
            return null;
        }

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Function tryExtendingTo has a Cognitive Complexity of 18 (exceeds 5 allowed). Consider refactoring.

Open

function tryExtendingTo( data, value ) {
    // If found text, we can certainly put the focus in it. Let's just find a correct position
    // based on the unit.
    if ( value.type == 'text' ) {
        if ( data.unit === 'word' ) {

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Function _consume has a Cognitive Complexity of 18 (exceeds 5 allowed). Consider refactoring.

Open

    _consume( type, item ) {
        const items = isArray( item ) ? item : [ item ];
        const consumables = this._consumables[ type ];

        for ( const name of items ) {

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Function getCorrectWordBreakPosition has a Cognitive Complexity of 18 (exceeds 5 allowed). Consider refactoring.

Open

function getCorrectWordBreakPosition( walker, isForward ) {
    let textNode = walker.position.textNode;

    if ( textNode ) {
        let offset = walker.position.offset - textNode.startOffset;

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View has 22 functions (exceeds 20 allowed). Consider refactoring.

Open

export default class View {
    /**
     * @param {module:engine/view/stylesmap~StylesProcessor} stylesProcessor The styles processor instance.
     */
    constructor( stylesProcessor ) {

Function parseInlineStyles has a Cognitive Complexity of 17 (exceeds 5 allowed). Consider refactoring.

Open

function parseInlineStyles( stylesString ) {
    // `null` if no quote was found in input string or last found quote was a closing quote. See below.
    let quoteType = null;
    let propertyNameStart = 0;
    let propertyValueStart = 0;

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DocumentSelection has 21 functions (exceeds 20 allowed). Consider refactoring.

Open

export default class DocumentSelection {
    /**
     * Creates new DocumentSelection instance.
     *
     *         // Creates empty selection without ranges.

Position has 21 functions (exceeds 20 allowed). Consider refactoring.

Open

export default class Position {
    /**
     * Creates a position.
     *
     * @param {module:engine/view/node~Node|module:engine/view/documentfragment~DocumentFragment} parent Position parent.

Mapper has 21 functions (exceeds 20 allowed). Consider refactoring.

Open

export default class Mapper {
    /**
     * Creates an instance of the mapper.
     */
    constructor() {

Model has 21 functions (exceeds 20 allowed). Consider refactoring.

Open

export default class Model {
    constructor() {
        /**
         * Model's marker collection.
         *

File insertcontent.js has 255 lines of code (exceeds 250 allowed). Consider refactoring.

Open

/**
 * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
 */

Function _walkView has a Cognitive Complexity of 16 (exceeds 5 allowed). Consider refactoring.

Open

    _walkView( root, callback ) {
        const ignore = this.ignoreRoot && this.root === root;

        if ( root.is( 'element' ) || root.is( 'documentFragment' ) ) {
            if ( root.is( 'element' ) && !ignore ) {

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