RolandJansen/intermix.js

Avoid too many `return` statements within this function.
Open

                return true;

Found in src/plugins/Sequencer/Sequencer.ts - About 30 mins to fix

Similar blocks of code found in 2 locations. Consider refactoring.
Open

        test("adds an entry to the store", () => {
            const state = store.getState();
            expect(state[pluginId]).toBeDefined();
        });

Found in src/registry/__tests__/MasterRegistry.test.ts and 1 other location - About 30 mins to fix

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src/registry/__tests__/MasterRegistry.test.ts on lines 162..165

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 45.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Don't Repeat Yourself on the C2 Wiki
Duplicated Code on SourceMaking
Refactoring: Improving the Design of Existing Code by Martin Fowler. Duplicated Code, p76

Avoid too many `return` statements within this function.
Open

            return new Map(deepCopy(Array.from(original))) as any;

Found in src/helper.ts - About 30 mins to fix

Avoid too many `return` statements within this function.
Open

                return true;

Found in src/plugins/Sequencer/Sequencer.ts - About 30 mins to fix

Avoid too many `return` statements within this function.
Open

        return new Int32Array(original);

Found in src/helper.ts - About 30 mins to fix

Avoid too many `return` statements within this function.
Open

        return new Float64Array(original);

Found in src/helper.ts - About 30 mins to fix

Function `clock` has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

export default function clock(data: any, worker: any): void {
    // "sendMessage" is a workaround for a bug in webpack-dev-server 3.8.1.
    // Type "onMessage" expects two arguments which doesn't match with the api.
    const sendMessage: any = worker.postMessage.bind(worker);

Found in src/plugins/Sequencer/clock.implementation.ts - About 25 mins to fix

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Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
Code is considered more complex for each "break in the linear flow of the code"
Code is considered more complex when "flow breaking structures are nested"

Further reading

Function `addItemToPatternStep` has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

const addItemToPatternStep = (oldStep: OscArgSequence[], item: IntermixNote | IntermixCtrl): OscArgSequence[] => {
    const newStep: OscArgSequence[] = [];

    const itemCount = oldStep.length;
    if (itemCount === 0) {

Found in src/seqpart/seqPartReducerLogic.ts - About 25 mins to fix

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Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
Code is considered more complex for each "break in the linear flow of the code"
Code is considered more complex when "flow breaking structures are nested"

Further reading

Function `presetSlotName` has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

const presetSlotName: reducerLogic = (mySubState: IState, action: InternalAction): IState => {
    if (isPluginState(mySubState)) {
        const currentSlot: number = mySubState.presetSlotNumber;
        const presetName = action.payload;
        let presetSlots: string[] = [];

Found in src/registry/commonPluginActionDefs.ts - About 25 mins to fix

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Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
Code is considered more complex for each "break in the linear flow of the code"
Code is considered more complex when "flow breaking structures are nested"

Further reading

Function `clock` has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

export function clock(e: MessageEvent): void {
    // we need an object that represents a worker context
    // to tell the compiler to use the right types.
    const ctx: Worker = self as any;
    const data = e.data as IClockMessage;

Found in src/plugins/Sequencer/clock.worker.ts - About 25 mins to fix

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Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
Code is considered more complex for each "break in the linear flow of the code"
Code is considered more complex when "flow breaking structures are nested"

Further reading

Function `observeStore` has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    public observeStore<T extends IRegistryItem>(st: Store, newObserver: T): () => void {
        const selectSubState = this.selectSubState;
        const getChanged = this.getChanged;

        const uid = newObserver.uid;

Found in src/registry/AbstractRegistry.ts - About 25 mins to fix

Read up
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Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
Code is considered more complex for each "break in the linear flow of the code"
Code is considered more complex when "flow breaking structures are nested"

Further reading