@stdlib/utils-size-of NPM

sizeOf

Return the size (in bytes) of the canonical binary representation of a specified numeric type.

Installation

npm install @stdlib/utils-size-of

Usage

var sizeOf = require( '@stdlib/utils-size-of' );

sizeOf( dtype )

Returns the size (in bytes) of the canonical binary representation of a specified numeric type.

var s = sizeOf( 'int8' );
// returns 1

The following numeric types are supported:

float64: double-precision floating-point numbers
float32: single-precision floating-point numbers
float16: half-precision floating-point numbers
int32: 32-bit two's complement signed integers
uint32: 32-bit unsigned integers
int16: 16-bit two's complement signed integers
uint16: 16-bit unsigned integers
int8: 8-bit two's complement signed integers
uint8: 8-bit unsigned integers
uint8c: 8-bit unsigned integers clamped to 0-255
complex128: 128-bit complex numbers
complex64: 64-bit complex numbers

Examples

var sizeOf = require( '@stdlib/utils-size-of' );

var s = sizeOf( 'float64' );
// returns 8

s = sizeOf( 'float32' );
// returns 4

s = sizeOf( 'float16' );
// returns 2

s = sizeOf( 'int32' );
// returns 4

s = sizeOf( 'uint32' );
// returns 4

s = sizeOf( 'int16' );
// returns 2

s = sizeOf( 'uint16' );
// returns 2

s = sizeOf( 'int8' );
// returns 1

s = sizeOf( 'uint8' );
// returns 1

s = sizeOf( 'uint8c' );
// returns 1

s = sizeOf( 'complex128' );
// returns 16

s = sizeOf( 'complex64' );
// returns 8

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.