Create a single-element array containing a provided scalar value.
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> Create a single-element array containing a provided scalar value.
``bash`
npm install @stdlib/array-from-scalar
`javascript`
var scalar2array = require( '@stdlib/array-from-scalar' );
#### scalar2array( value\[, dtype] )
Returns a single-element array containing a provided scalar value.
`javascript`
var x = scalar2array( 3.0 );
// returns
If not provided a dtype argument and value
- is a number, the default [data type][@stdlib/array/dtypes] is the [default][@stdlib/array/defaults] real-valued floating-point data type.
- is a boolean, the default [data type][@stdlib/array/dtypes] is the [default][@stdlib/array/defaults] boolean data type.
- is a complex number object of a known data type, the data type is the same as the provided value.
- is a complex number object of an unknown data type, the default [data type][@stdlib/array/dtypes] is the [default][@stdlib/array/defaults] complex-valued floating-point data type.
- is any other value type, the default [data type][@stdlib/array/dtypes] is 'generic'.
To explicitly specify the [data type][@stdlib/array/dtypes] of the returned array, provide a dtype argument.
`javascript`
var x = scalar2array( 3.0, 'float32' );
// returns
- If value is a number and the dtype argument is a complex [data type][@stdlib/array/dtypes], the function returns a complex number array containing a complex number whose real component equals the provided scalar value and whose imaginary component is zero.value
- The function does not guard against precision loss when is a number and the dtype argument is an integer [data type][@stdlib/array/dtypes].
`javascript
var Complex128 = require( '@stdlib/complex-float64-ctor' );
var array2scalar = require( '@stdlib/array-from-scalar' );
var x = array2scalar( 3.0 );
// returns
x = array2scalar( 3, 'int32' );
// returns
x = array2scalar( new Complex128( 3.0, 4.0 ) );
// returns
x = array2scalar( {} );
// returns [ {} ]
`
*
- [@stdlib/array-from-iterator][@stdlib/array/from-iterator]: create (or fill) an array from an iterator.
*
This package is part of [stdlib][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][stdlib], see the main project [repository][stdlib].
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---
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