Bits
Returns a string giving the literal bit representation of an unsigned 8-bit integer.
Installation
$ npm install math-uint8-bits
Usage
var bits = ;
bits( x )
Returns a string
giving the literal bit representation of an unsigned 8-bit integer.
var a = 1 4 9 ;var str = ;// returns '00000001'str = ;// returns '00000100'str = ;// returns '00001001'
Notes
-
Except for typed arrays, JavaScript does not provide native user support for unsigned 8-bit integers. According to the ECMAScript standard,
number
values correspond to double-precision floating-point numbers. While thisfunction
is intended for unsigned 8-bit integers, thefunction
will accept floating-point values and represent the values as if they are unsigned 8-bit integers. Accordingly, care should be taken to ensure that only nonnegative integer values less than256
(2**8
) are provided.var str = ;// returns '00000001'str = ;// returns '00000100'str = ;// returns '00001001'str = ;// returns '11111111'
Examples
var MAX_UINT8 = ;var bits = ;var x;var y;var b;var i;x = MAX_UINT8+1 ;for i = 0; i < xlength; i++x i = i;// Convert unsigned 8-bit integers to literal bit representations...for i = 0; i < xlength; i++b = ;y = ;console;
To run the example code from the top-level application directory,
$ node ./examples/index.js
Tests
Unit
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.
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
Browser Support
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
License
Copyright
Copyright © 2016. The Compute.io Authors.