@stdlib/number-uint16-base-to-binary-string NPM

Binary String

Return a string giving the literal bit representation of an unsigned 16-bit integer.

Installation

npm install @stdlib/number-uint16-base-to-binary-string

Usage

var toBinaryString = require( '@stdlib/number-uint16-base-to-binary-string' );

toBinaryString( x )

Returns a string giving the literal bit representation of an unsigned 16-bit integer.

var Uint16Array = require( '@stdlib/array-uint16' );

var a = new Uint16Array( [ 1, 4, 9 ] );

var str = toBinaryString( a[0] );
// returns '0000000000000001'

str = toBinaryString( a[1] );
// returns '0000000000000100'

str = toBinaryString( a[2] );
// returns '0000000000001001'

Notes

Except for typed arrays, JavaScript does not provide native user support for unsigned 16-bit integers. According to the ECMAScript standard, number values correspond to double-precision floating-point numbers. While this function is intended for unsigned 16-bit integers, the function will accept floating-point values and represent the values as if they are unsigned 16-bit integers. Accordingly, care should be taken to ensure that only nonnegative integer values less than 65536 (2^16) are provided.
```
var str = toBinaryString( 1 );
// returns '0000000000000001'

str = toBinaryString( 4 );
// returns '0000000000000100'

str = toBinaryString( 9 );
// returns '0000000000001001'

str = toBinaryString( 65535 );
// returns '1111111111111111'
```

Examples

var randu = require( '@stdlib/random-base-randu' );
var round = require( '@stdlib/math-base-special-round' );
var Uint16Array = require( '@stdlib/array-uint16' );
var MAX_UINT16 = require( '@stdlib/constants-uint16-max' );
var toBinaryString = require( '@stdlib/number-uint16-base-to-binary-string' );

var x;
var y;
var b;
var i;

// Generate random unsigned 16-bit integers...
x = new Uint16Array( 100 );
for ( i = 0; i < x.length; i++ ) {
    x[ i ] = round( randu()*MAX_UINT16 );
}

// Convert unsigned 16-bit integers to literal bit representations...
for ( i = 0; i < x.length; i++ ) {
    b = toBinaryString( x[i] );
    y = parseInt( b, 2 );
    console.log( 'x: %d, b: %s, y: %d', x[i], b, y );
}

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.