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nodef/extra-string

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src/index.ts

Summary

Maintainability
D
2 days
Test Coverage
B
80%

File index.ts has 546 lines of code (exceeds 250 allowed). Consider refactoring.
Open

import {IDENTITY} from "extra-function";
Severity: Major
Found in src/index.ts - About 1 day to fix

    Function toBaselineIndirect has a Cognitive Complexity of 27 (exceeds 5 allowed). Consider refactoring.
    Open

    function toBaselineIndirect(x: string, fsup: MapFunction, fsub: MapFunction): string {
  var a   = "", i    = 0;
  var tmp = "", mode = 0;
  fsup = fsup || IDENTITY;
  fsub = fsub || IDENTITY;
    Severity: Minor
    Found in src/index.ts - About 3 hrs 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

    Function levenshteinDistance has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.
    Open

    export function levenshteinDistance(x: string, y: string, ins: number=1, del: number=1, sub: number=1): number {
  // 1. Remove common prefix, suffix
  var [x, y] = longestUncommonInfixes(x, y);
  var X = x.length, Y = y.length;
  // 2. Get distance in 1st row
    Severity: Minor
    Found in src/index.ts - About 1 hr 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

    Function longestCommonInfix has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
    Open

    export function longestCommonInfix(x: string, y: string): string {
  var ai = 0, al = 0;
  for (var i=0, I=x.length; i<I; i++) {
    for (var j=0, J=y.length, l=0; j<J; j++) {
      l = x[i+l]===y[j]? l+1 : 0;
    Severity: Minor
    Found in src/index.ts - About 55 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

    Function damerauLevenshteinDistance has 6 arguments (exceeds 4 allowed). Consider refactoring.
    Invalid

    export function damerauLevenshteinDistance(x: string, y: string, ins: number=1, del: number=1, sub: number=1, tra: number=1): number {
    Severity: Minor
    Found in src/index.ts - About 45 mins to fix

      Function rangedMatches has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
      Open

      function rangedMatches(x: string, y: string, d: number): [string, string] {
  // 1. Prepare strike-off buffer
  var mx = "", my = "";
  var by = Array.from(y);
  // 2. Get matches in first string
      Severity: Minor
      Found in src/index.ts - About 45 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

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

      export function tverskyDistance(x: string, y: string, n: number, a: number=1, b: number=1): number {
      Severity: Minor
      Found in src/index.ts - About 35 mins to fix

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

        export function tverskyIndex(x: string, y: string, n: number, a: number=1, b: number=1): number {
        Severity: Minor
        Found in src/index.ts - About 35 mins to fix

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

          export function levenshteinDistance(x: string, y: string, ins: number=1, del: number=1, sub: number=1): number {
          Severity: Minor
          Found in src/index.ts - About 35 mins to fix

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

            export function damerauLevenshteinDistance(x: string, y: string, ins: number=1, del: number=1, sub: number=1, tra: number=1): number {
  // 1. Remove common prefix, suffix
  var [x, y] = longestUncommonInfixes(x, y);
  var X = x.length, Y = y.length
  var I = X+2, J = Y+2, L = X+Y;
            Severity: Minor
            Found in src/index.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

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

            export function toKebabCase(x: string, re: RegExp | null=null, sep: string="-"): string {
  var words = x.split(re || /[^0-9A-Za-z]+/g).filter(IDENTITY);
  for (var i=0, I=words.length; i<I; ++i) {
    words[i] = words[i].replace(/[A-Z]+/g, m => m.length===1? sep+m : sep+m.slice(0, -1)+sep+m.slice(-1));
    if (words[i].startsWith(sep)) words[i] = words[i].slice(sep.length);
            Severity: Minor
            Found in src/index.ts - About 25 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

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

            export function toSubscript(x: string): string {
  var a = "";
  for (var c of x) {
    var d = SUBSCRIPT_LOOKUP[c.charCodeAt(0) - 32] || " ";
    a += d===" "? c : d;
            Severity: Major
            Found in src/index.ts and 1 other location - About 2 hrs to fix
            src/index.ts on lines 1071..1078

            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 85.

            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

            export function toSuperscript(x: string): string {
  var a = "";
  for (var c of x) {
    var d = SUPERSCRIPT_LOOKUP[c.charCodeAt(0) - 32] || " ";
    a += d===" "? c : d;
            Severity: Major
            Found in src/index.ts and 1 other location - About 2 hrs to fix
            src/index.ts on lines 1089..1096

            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 85.

            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.
            Invalid

            function toBeginLowerAnyCase(x: string): string {
  return x.slice(0, 1).toUpperCase() + x.slice(1);
}
            Severity: Minor
            Found in src/index.ts and 1 other location - About 50 mins to fix
            src/index.ts on lines 1110..1112

            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 52.

            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.
            Invalid

            function toBeginUpperAnyCase(x: string): string {
  return x.slice(0, 1).toUpperCase() + x.slice(1);
}
            Severity: Minor
            Found in src/index.ts and 1 other location - About 50 mins to fix
            src/index.ts on lines 1115..1117

            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 52.

            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.
            Invalid

            export function sorensenDiceDistance(x: string, y: string, n: number): number {
  return 1 - sorensenDiceIndex(x, y, n);
}
            Severity: Minor
            Found in src/index.ts and 1 other location - About 35 mins to fix
            src/index.ts on lines 1546..1548

            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 47.

            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.
            Invalid

            export function jaccardDistance(x: string, y: string, n: number): number {
  return 1 - jaccardIndex(x, y, n);
}
            Severity: Minor
            Found in src/index.ts and 1 other location - About 35 mins to fix
            src/index.ts on lines 1573..1575

            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 47.

            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.
            Invalid

            export function lastIndexOf(x: string, infix: string, rstart?: number): number {
  return x.lastIndexOf(infix, rstart);
}
            Severity: Minor
            Found in src/index.ts and 1 other location - About 35 mins to fix
            src/index.ts on lines 217..219

            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 46.

            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.
            Invalid

              if (tmp) a += mode===0? tmp : (mode===1? fsup(tmp, i-t) : fsub(tmp, i-t));
            Severity: Minor
            Found in src/index.ts and 1 other location - About 35 mins to fix
            src/index.ts on lines 1042..1042

            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 46.

            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.
            Invalid

            export function startsWith(x: string, prefix: string, start?: number): boolean {
  return x.startsWith(prefix, start);
}
            Severity: Minor
            Found in src/index.ts and 1 other location - About 35 mins to fix
            src/index.ts on lines 205..207

            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 46.

            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.
            Invalid

            export function indexOf(x: string, infix: string, start?: number): number {
  return x.indexOf(infix, start);
}
            Severity: Minor
            Found in src/index.ts and 1 other location - About 35 mins to fix
            src/index.ts on lines 229..231

            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 46.

            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.
            Invalid

                if (m!==mode && t) a += mode===0? tmp : (mode===1? fsup(tmp, i-t) : fsub(tmp, i-t));
            Severity: Minor
            Found in src/index.ts and 1 other location - About 35 mins to fix
            src/index.ts on lines 1046..1046

            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 46.

            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.
            Invalid

            export function endsWith(x: string, suffix: string, end?: number): boolean {
  return x.endsWith(suffix, end);
}
            Severity: Minor
            Found in src/index.ts and 1 other location - About 35 mins to fix
            src/index.ts on lines 193..195

            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 46.

            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

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