Halstead Metrics CLI

A command line tool for measuring Halstead metrics for JavaScript files.

Installation

npm install -g halstead-metrics-cli

Usage

Metrics for all files in a directory:

halstead dir cmds

Halstead metrics for: cmds

Total operators...........................391
Distinct operators.........................63
Total operands............................172
Distinct operands..........................42

Program length............................563
Program vocabulary........................105
Estimated length.......................603.05
Purity ratio.............................1.07
Volume................................3780.12
Difficulty.............................129.00
Program effort......................487635.51
Time required to program (h).............7.53
Number of delivered bugs.................2.07

Metrics for single or multiple files:

halstead file utils/error.js ./index.js

Halstead metrics for: utils/error.js,./index.js

Total operators...........................153
Distinct operators.........................36
Total operands.............................58
Distinct operands..........................23

Program length............................211
Program vocabulary.........................59
Estimated length.......................290.16
Purity ratio.............................1.38
Volume................................1241.24
Difficulty..............................45.39
Program effort.......................56341.40
Time required to program (h).............0.87
Number of delivered bugs.................0.49