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src/event/index.js

Summary

Maintainability
B
4 hrs
Test Coverage

Function on has 34 lines of code (exceeds 25 allowed). Consider refactoring.
Open

export const on = function(eventNames, selector, handler, useCapture, once) {

  if(typeof selector === 'function') {
    handler = selector;
    selector = null;
Severity: Minor
Found in src/event/index.js - About 1 hr to fix

    Function off has 32 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

    export const off = function(eventNames = '', selector, handler, useCapture) {

  if(typeof selector === 'function') {
    handler = selector;
    selector = null;
    Severity: Minor
    Found in src/event/index.js - About 1 hr to fix

      Function on has 5 arguments (exceeds 4 allowed). Consider refactoring.
      Open

      export const on = function(eventNames, selector, handler, useCapture, once) {
      Severity: Minor
      Found in src/event/index.js - About 35 mins to fix

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

        export const delegateHandler = function(selector, handler, event) {
  const eventTarget = event._target || event.target;
  const currentTarget = closest.call([eventTarget], selector, this)[0];
  if(currentTarget && currentTarget !== this) {
    if(currentTarget === eventTarget || !(event.isPropagationStopped && event.isPropagationStopped())) {
        Severity: Minor
        Found in src/event/index.js - 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

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

        const augmentEvent = event => {
  if(!event.isDefaultPrevented || event.stopImmediatePropagation || event.stopPropagation) {
    for(const methodName in eventMethods) {
      (function(methodName, testMethodName, originalMethod) {
        event[methodName] = function() {
        Severity: Minor
        Found in src/event/index.js - 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

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