dtype

What is dtype?

The dtype npm package is used to determine the data type of a JavaScript value. It is a simple utility that can be useful in various scenarios where type checking is necessary.

What are dtype's main functionalities?

Determine the data type of a value

This feature allows you to determine the data type of various JavaScript values such as numbers, strings, booleans, arrays, and objects.

const dtype = require('dtype');

console.log(dtype(42)); // 'int32'
console.log(dtype(3.14)); // 'float64'
console.log(dtype('hello')); // 'string'
console.log(dtype(true)); // 'bool'
console.log(dtype([1, 2, 3])); // 'array'
console.log(dtype({ key: 'value' })); // 'object'

Other packages similar to dtype

typeof

The typeof package provides a more detailed type checking than the native JavaScript typeof operator. It can distinguish between different types of objects and primitives. Compared to dtype, typeof offers a more comprehensive type checking but may not be as specialized in certain numeric types.

type-detect

The type-detect package is a robust library for type detection in JavaScript. It can identify a wide range of types including custom types. Compared to dtype, type-detect is more versatile and can handle more complex type detection scenarios.

is

The is package provides a set of type-checking functions for various JavaScript types. It is more modular and allows for checking specific types with dedicated functions. Compared to dtype, is offers a more granular approach to type checking.

README

dtype

Return a data type from a string representing the data type.

Mostly useful for using with ndarray where you would like instantiate a typed array of the same array.dtype.

example

var dtype = require('dtype')
var ndarray = require('ndarray')

var arr = ndarray(new Int8Array(32))

// some time later

var newarr = ndarray(new (dtype(arr.dtype)))

API

dtype(string) will return the following data types based on the strings given:

Data type	String
Int8Array	"int8"
Int16Array	"int16"
Int32Array	"int32"
Uint8Array	"uint8"
Uint16Array	"uint16"
Uint32Array	"uint32"
Float32Array	"float32"
Float64Array	"float64"
Array	"array"
Uint8ClampedArray	"uint8_clamped"
ArrayBuffer	"generic"
ArrayBuffer	"data"
ArrayBuffer	"dataview"
Buffer	"buffer"

If Buffer is not present then "buffer" will return ArrayBuffer.

install

With npm do:

npm install dtype

Use browserify to require('dtype').

release history

• 0.1.0 - initial release

license

Copyright (c) 2013 Kyle Robinson Young
Licensed under the MIT license.