Multiply
Computes an element-wise multiplication of a numeric array.
Installation
$ npm install compute-multiply
For use in the browser, use browserify.
Usage
To use the module,
var multiply = ;
multiply( arr, x )
Computes an element-wise multiplication of an input array
. x
may be either an array
of equal length or a scalar.
;// returns [ -8, -4, -16, -8 ];// returns [ 2, 2, 12, 6 ]
Examples
var multiply = ;// Simulate some data...var data = 100 ;for var i = 0; i < datalength; i++data i = Math;;console;
To run the example code from the top-level application directory,
$ node ./examples/index.js
Notes
This function mutates the input array
. If mutation is undesired,
var data = 1 2 3 4copy = data;;
Tests
Unit
Unit tests use the Mocha test framework with Chai assertions. 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.
Test Coverage
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
License
Copyright
Copyright © 2014. Athan Reines.