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Are there any tools available for calculating Cyclomatic Complexity in Javascript?
I've found it a very helpful metric in the past while working on server side code, and would like to be able to use it for the client side Javascript I write.
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3) Cyclomatic complexity V(G) = P +1 V (G) = 2 + 1 = 3 Where P is predicate nodes (node 1 and node 2) are predicate nodes because from these nodes only the decision of which path is to be followed is taken.
Cyclomatic complexity is a source code complexity measurement that is being correlated to a number of coding errors. It is calculated by developing a Control Flow Graph of the code that measures the number of linearly-independent paths through a program module.
Cyclomatic Complexity: It is a measure of the logical complexity of the software and is used to define the number of independent paths. For a graph G, V(G) is its cyclomatic complexity. Calculating V(G): V(G) = P + 1, where P is the number of predicate nodes in the flow graph.
I helped write a tool to perform software complexity analysis on JavaScript projects:
complexity-report
It reports a bunch of different complexity metrics: lines of code, number of parameters, cyclomatic complexity, cyclomatic density, Halstead complexity measures, the maintainability index, first-order density, change cost and core size.
It is released under the MIT license and built using Node.js and the Esprima JavaScript parser. It can be installed via npm, like so:
npm i -g complexity-report If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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