The signum function is defined as
for any real number
$ npm install math-signum
var signum = ;
signum( x )
Evaluates the signum function.
var sign = ;// returns -1sign = ;// returns 1sign = ;// returns -0sign = ;// returns 0sign = ;// returns NaN
Table of results:
var signum = ;var sign;var v;var i;for i = 0; i < 100; i++v = Math - 50;if < 0sign = '-';elsesign = '+';console;
To run the example code from the top-level application directory,
$ node ./examples/index.js
This repository uses tape for unit tests. To run the tests, execute the following command in the top-level application directory:
$ make test
All new feature development should have corresponding unit tests to validate correct functionality.
This repository uses Istanbul as its code coverage tool. To generate a test coverage report, execute the following command in the top-level application directory:
$ make test-cov
Istanbul creates a
./reports/coverage directory. To access an HTML version of the report,
$ make view-cov
This repository uses Testling for browser testing. To run the tests in a (headless) local web browser, execute the following command in the top-level application directory:
$ make test-browsers
To view the tests in a local web browser,
$ make view-browser-tests
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