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File index.ts has 329 lines of code (exceeds 250 allowed). Consider refactoring.
Open

import {
  IDENTITY,
  COMPARE,
} from "extra-function";
import {
Severity: Minor
Found in src/index.ts - About 3 hrs to fix

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

      for (var i=0, I=x.length; i<I;) {
    var m  = i+I >>> 1;
    var wx = fm(x[m], m ,x);
    var c  = fc(wx, w);
    if (c<0)      i = m+1;
    Severity: Major
    Found in src/index.ts and 1 other location - About 3 hrs to fix
    src/index.ts on lines 283..290

    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 111.

    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

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

      for (var i=0, I=x.length; i<I;) {
    var m  = i+I >>> 1;
    var wx = fm(x[m], m, x);
    var c  = fc(wx, w);
    if (c<0)      i = m+1;
    Severity: Major
    Found in src/index.ts and 1 other location - About 3 hrs to fix
    src/index.ts on lines 307..314

    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 111.

    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

      for (var i=0, I=x.length; i<I;) {
    var m  = i+I >>> 1;
    var wx = fm(x[m], m, x);
    var c  = fc(wx, w);
    if (c<0) i = m+1;
    Severity: Major
    Found in src/index.ts and 1 other location - About 3 hrs to fix
    src/index.ts on lines 260..266

    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 99.

    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

      for (var i=0, I=x.length; i<I;) {
    var m  = i+I >>> 1;
    var wx = fm(x[m], m, x);
    var c  = fc(wx, w);
    if (c<=0) i = m+1;
    Severity: Major
    Found in src/index.ts and 1 other location - About 3 hrs to fix
    src/index.ts on lines 237..243

    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 99.

    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

    Identical blocks of code found in 6 locations. Consider refactoring.
    Open

    export function difference<T, U=T>(x: T[], y: T[], fc: CompareFunction<T|U> | null=null, fm: MapFunction<T, T|U> | null=null): T[] {
  var fc = fc || COMPARE;
  var fm = fm || IDENTITY;
  var a = [];
  for (var i=0, j=0, I=x.length, J=y.length; i<I && j<J;) {
    Severity: Major
    Found in src/index.ts and 5 other locations - About 1 hr to fix
    src/index.ts on lines 352..354
    src/index.ts on lines 442..454
    src/index.ts on lines 487..502
    src/index.ts on lines 517..530
    src/index.ts on lines 566..581

    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 72.

    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

    Identical blocks of code found in 6 locations. Consider refactoring.
    Open

    export function merge<T, U=T>(x: T[], y: T[], fc: CompareFunction<T|U> | null=null, fm: MapFunction<T, T|U> | null=null): T[] {
  return rangedMerge(x, 0, x.length, y, 0, y.length, fc, fm);
}
    Severity: Major
    Found in src/index.ts and 5 other locations - About 1 hr to fix
    src/index.ts on lines 442..454
    src/index.ts on lines 487..502
    src/index.ts on lines 517..530
    src/index.ts on lines 541..555
    src/index.ts on lines 566..581

    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 72.

    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

    Identical blocks of code found in 6 locations. Consider refactoring.
    Open

    export function intersection<T, U=T>(x: T[], y: T[], fc: CompareFunction<T|U> | null=null, fm: MapFunction<T, T|U> | null=null): T[] {
  var fc = fc || COMPARE;
  var fm = fm || IDENTITY;
  var a = [];
  for (var i=0, j=0, I=x.length, J=y.length; i<I && j<J;) {
    Severity: Major
    Found in src/index.ts and 5 other locations - About 1 hr to fix
    src/index.ts on lines 352..354
    src/index.ts on lines 442..454
    src/index.ts on lines 487..502
    src/index.ts on lines 541..555
    src/index.ts on lines 566..581

    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 72.

    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

    Identical blocks of code found in 6 locations. Consider refactoring.
    Open

    export function isDisjoint<T, U=T>(x: T[], y: T[], fc: CompareFunction<T|U> | null=null, fm: MapFunction<T, T|U> | null=null): boolean {
  var fc = fc || COMPARE;
  var fm = fm || IDENTITY;
  for (var i=0, j=0, I=x.length, J=y.length; i<I && j<J;) {
    var wx = fm(x[i], i, x);
    Severity: Major
    Found in src/index.ts and 5 other locations - About 1 hr to fix
    src/index.ts on lines 352..354
    src/index.ts on lines 487..502
    src/index.ts on lines 517..530
    src/index.ts on lines 541..555
    src/index.ts on lines 566..581

    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 72.

    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

    Identical blocks of code found in 6 locations. Consider refactoring.
    Open

    export function symmetricDifference<T, U=T>(x: T[], y: T[], fc: CompareFunction<T|U> | null=null, fm: MapFunction<T, T|U> | null=null): T[] {
  var fc = fc || COMPARE;
  var fm = fm || IDENTITY;
  var a = [];
  for (var i=0, j=0, I=x.length, J=y.length; i<I && j<J;) {
    Severity: Major
    Found in src/index.ts and 5 other locations - About 1 hr to fix
    src/index.ts on lines 352..354
    src/index.ts on lines 442..454
    src/index.ts on lines 487..502
    src/index.ts on lines 517..530
    src/index.ts on lines 541..555

    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 72.

    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

    Identical blocks of code found in 6 locations. Consider refactoring.
    Open

    export function union<T, U=T>(x: T[], y: T[], fc: CompareFunction<T|U> | null=null, fm: MapFunction<T, T|U> | null=null): T[] {
  var fc = fc || COMPARE;
  var fm = fm || IDENTITY;
  var a = [];
  for (var i=0, j=0, I=x.length, J=y.length; i<I && j<J;) {
    Severity: Major
    Found in src/index.ts and 5 other locations - About 1 hr to fix
    src/index.ts on lines 352..354
    src/index.ts on lines 442..454
    src/index.ts on lines 517..530
    src/index.ts on lines 541..555
    src/index.ts on lines 566..581

    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 72.

    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

    Identical blocks of code found in 5 locations. Consider refactoring.
    Open

    export function hasValue<T, U=T>(x: T[], v: T, fc: CompareFunction<T|U> | null=null, fm: MapFunction<T, T|U> | null=null): boolean {
  return searchValueAny(x, v, fc, fm)>=0;
}
    Severity: Major
    Found in src/index.ts and 4 other locations - About 1 hr to fix
    src/index.ts on lines 233..245
    src/index.ts on lines 256..268
    src/index.ts on lines 279..292
    src/index.ts on lines 303..316

    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 70.

    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

    Identical blocks of code found in 5 locations. Consider refactoring.
    Open

    export function searchValueAny<T, U=T>(x: T[], v: T, fc: CompareFunction<T|U> | null=null, fm: MapFunction<T, T|U> | null=null): number {
  var fc = fc || COMPARE;
  var fm = fm || IDENTITY;
  var w  = fm(v, 0, null);
  for (var i=0, I=x.length; i<I;) {
    Severity: Major
    Found in src/index.ts and 4 other locations - About 1 hr to fix
    src/index.ts on lines 194..196
    src/index.ts on lines 233..245
    src/index.ts on lines 256..268
    src/index.ts on lines 303..316

    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 70.

    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

    Identical blocks of code found in 5 locations. Consider refactoring.
    Open

    export function searchValueRight<T, U=T>(x: T[], v: T, fc: CompareFunction<T|U> | null=null, fm: MapFunction<T, T|U> | null=null): number {
  var fc = fc || COMPARE;
  var fm = fm || IDENTITY;
  var w  = fm(v, 0, null);
  for (var i=0, I=x.length; i<I;) {
    Severity: Major
    Found in src/index.ts and 4 other locations - About 1 hr to fix
    src/index.ts on lines 194..196
    src/index.ts on lines 233..245
    src/index.ts on lines 279..292
    src/index.ts on lines 303..316

    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 70.

    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

    Identical blocks of code found in 5 locations. Consider refactoring.
    Open

    export function searchClosestValue<T, U=T>(x: T[], v: T, fc: CompareFunction<T|U> | null=null, fm: MapFunction<T, T|U> | null=null): number {
  var fc = fc || COMPARE;
  var fm = fm || IDENTITY;
  var w  = fm(v, 0, null);
  for (var i=0, I=x.length; i<I;) {
    Severity: Major
    Found in src/index.ts and 4 other locations - About 1 hr to fix
    src/index.ts on lines 194..196
    src/index.ts on lines 233..245
    src/index.ts on lines 256..268
    src/index.ts on lines 279..292

    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 70.

    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

    Identical blocks of code found in 5 locations. Consider refactoring.
    Open

    export function searchValue<T, U=T>(x: T[], v: T, fc: CompareFunction<T|U> | null=null, fm: MapFunction<T, T|U> | null=null): number {
  var fc = fc || COMPARE;
  var fm = fm || IDENTITY;
  var w = fm(v, 0, null);
  for (var i=0, I=x.length; i<I;) {
    Severity: Major
    Found in src/index.ts and 4 other locations - About 1 hr to fix
    src/index.ts on lines 194..196
    src/index.ts on lines 256..268
    src/index.ts on lines 279..292
    src/index.ts on lines 303..316

    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 70.

    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

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

    export function isUnique<T, U=T>(x: T[], fc: CompareFunction<T|U> | null=null, fm: MapFunction<T, T|U> | null=null): boolean {
  var fc = fc || COMPARE;
  var fm = fm || IDENTITY;
  for (var i=1, I=x.length; i<I; ++i) {
    var wx = fm(x[i-1], i-1, x);
    Severity: Major
    Found in src/index.ts and 1 other location - About 1 hr to fix
    src/index.ts on lines 464..476

    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 63.

    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

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

    export function unique<T, U=T>(x: T[], fc: CompareFunction<T|U> | null=null, fm: MapFunction<T, T|U> | null=null): T[] {
  var fc = fc || COMPARE;
  var fm = fm || IDENTITY;
  var X  = x.length;
  if (X<=1) return x.slice();
    Severity: Major
    Found in src/index.ts and 1 other location - About 1 hr to fix
    src/index.ts on lines 422..431

    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 63.

    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

    Function rangedMerge has 8 arguments (exceeds 4 allowed). Consider refactoring.
    Open

    export function rangedMerge<T, U=T>(x: T[], i: number, I: number, y: T[], j: number, J: number, fc: CompareFunction<T|U> | null=null, fm: MapFunction<T, T|U> | null=null): T[] {
    Severity: Major
    Found in src/index.ts - About 1 hr to fix

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

      export function symmetricDifference<T, U=T>(x: T[], y: T[], fc: CompareFunction<T|U> | null=null, fm: MapFunction<T, T|U> | null=null): T[] {
  var fc = fc || COMPARE;
  var fm = fm || IDENTITY;
  var a = [];
  for (var i=0, j=0, I=x.length, J=y.length; i<I && j<J;) {
      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

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