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concord-consortium/rigse

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rails/app/assets/javascripts/canvas2image.js

Summary

Maintainability
D
1 day
Test Coverage

Function Canvas2Image has a Cognitive Complexity of 41 (exceeds 5 allowed). Consider refactoring.
Open

var Canvas2Image = (function() {
    // check if we have canvas support
    var oCanvas = document.createElement("canvas"),
        sc = String.fromCharCode,
      strDownloadMime = "image/octet-stream",
Severity: Minor
Found in rails/app/assets/javascripts/canvas2image.js - About 6 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 Canvas2Image has 147 lines of code (exceeds 25 allowed). Consider refactoring.
Open

var Canvas2Image = (function() {
    // check if we have canvas support
    var oCanvas = document.createElement("canvas"),
        sc = String.fromCharCode,
      strDownloadMime = "image/octet-stream",
Severity: Major
Found in rails/app/assets/javascripts/canvas2image.js - About 5 hrs to fix

    Function createBMP has 48 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

        var createBMP = function(oData) {
        var strHeader = '',
            iWidth = oData.width,
            iHeight = oData.height;
    Severity: Minor
    Found in rails/app/assets/javascripts/canvas2image.js - About 1 hr to fix

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