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Binary String
Return a string giving the literal bit representation of an unsigned 8bit integer.
Installation
npm install @stdlib/numberuint8basetobinarystring
Usage
var toBinaryString = require( '@stdlib/numberuint8basetobinarystring' );
toBinaryString( x )
Returns a string
giving the literal bit representation of an unsigned 8bit integer.
var Uint8Array = require( '@stdlib/arrayuint8' );
var a = new Uint8Array( [ 1, 4, 9 ] );
var str = toBinaryString( a[0] );
// returns '00000001'
str = toBinaryString( a[1] );
// returns '00000100'
str = toBinaryString( a[2] );
// returns '00001001'
Notes

Except for typed arrays, JavaScript does not provide native user support for unsigned 8bit integers. According to the ECMAScript standard,
number
values correspond to doubleprecision floatingpoint numbers. While this function is intended for unsigned 8bit integers, the function will accept floatingpoint values and represent the values as if they are unsigned 8bit integers. Accordingly, care should be taken to ensure that only nonnegative integer values less than256
(2^8
) are provided.var str = toBinaryString( 1 ); // returns '00000001' str = toBinaryString( 4 ); // returns '00000100' str = toBinaryString( 9 ); // returns '00001001' str = toBinaryString( 255 ); // returns '11111111'
Examples
var Uint8Array = require( '@stdlib/arrayuint8' );
var MAX_UINT8 = require( '@stdlib/constantsuint8max' );
var toBinaryString = require( '@stdlib/numberuint8basetobinarystring' );
var x;
var y;
var b;
var i;
x = new Uint8Array( MAX_UINT8+1 );
for ( i = 0; i < x.length; i++ ) {
x[ i ] = i;
}
// Convert unsigned 8bit 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 );
}
See Also

@stdlib/numberfloat64/base/tobinarystring
: return a string giving the literal bit representation of a doubleprecision floatingpoint number.
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.
Community
License
See LICENSE.
Copyright
Copyright © 20162024. The Stdlib Authors.