Sign upLogin

ahbeng/NUSMods

View on GitHub
Star
export/src/app.ts

Summary

Maintainability
A
2 hrs
Test Coverage

Consider simplifying this complex logical expression.
Open

    if (
      typeof height !== 'undefined' &&
      typeof width !== 'undefined' &&
      !Number.isNaN(height) && // accept floats
      !Number.isNaN(width) && // accept floats
Severity: Major
Found in export/src/app.ts - About 40 mins to fix

    Function errorHandler has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
    Open

    const errorHandler: Koa.Middleware<State> = async (ctx, next) => {
  try {
    await next();

    if (ctx.status === 404) {
    Severity: Minor
    Found in export/src/app.ts - About 35 mins to fix

    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

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

          typeof height !== 'undefined' &&
      typeof width !== 'undefined' &&
      !Number.isNaN(height) && // accept floats
      !Number.isNaN(width) && // accept floats
      Number(height) > 0 &&
    Severity: Minor
    Found in export/src/app.ts and 1 other location - About 40 mins to fix
    export/api/export/image.ts on lines 24..28

    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 48.

    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

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

        let options: render.ViewportOptions = {
      pixelRatio: _.clamp(Number(ctx.query.pixelRatio) || 1, 1, 3),
    };
    Severity: Minor
    Found in export/src/app.ts and 1 other location - About 40 mins to fix
    export/api/export/image.ts on lines 18..20

    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 48.

    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

    There are no issues that match your filters.

    Category
    Status