README.md

About stdlib...

We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.

The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.

When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.

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Binary String

Return a string giving the literal bit representation of an unsigned 8-bit integer.

Usage

import toBinaryString from 'https://cdn.jsdelivr.net/gh/stdlib-js/number-uint8-base-to-binary-string@deno/mod.js';

toBinaryString( x )

Returns a string giving the literal bit representation of an unsigned 8-bit integer.

import Uint8Array from 'https://cdn.jsdelivr.net/gh/stdlib-js/array-uint8@deno/mod.js';

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 8-bit integers. According to the ECMAScript standard, number values correspond to double-precision floating-point numbers. While this function is intended for unsigned 8-bit integers, the function 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 than 256 (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

import Uint8Array from 'https://cdn.jsdelivr.net/gh/stdlib-js/array-uint8@deno/mod.js';
import MAX_UINT8 from 'https://cdn.jsdelivr.net/gh/stdlib-js/constants-uint8-max@deno/mod.js';
import toBinaryString from 'https://cdn.jsdelivr.net/gh/stdlib-js/number-uint8-base-to-binary-string@deno/mod.js';

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 8-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 );
}

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See Also

• @stdlib/number-float64/base/to-binary-string: return a string giving the literal bit representation of a double-precision floating-point number.

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Notice

This package is part of stdlib, a standard library 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

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License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.