fullLike

Create a filled array having the same length and data type as a provided array.

Installation

npm install @stdlib/array-full-like

Usage

var fullLike = require( '@stdlib/array-full-like' );

fullLike( x, value[, dtype] )

Creates a filled array having the same length and data type as a provided array x.

var x = [ 1, 2, 3, 4, 5 ];

var arr = fullLike( x, 1 );
// returns [ 1, 1, 1, 1, 1 ]

By default, the output array data type is inferred from the provided array x. To return an array having a different data type, provide a dtype argument.

var x = [ 1, 1 ];

var arr = fullLike( x, 1, 'int32' );
// returns <Int32Array>[ 1, 1 ]

Notes

• If provided a number and the output array data type is a complex number data type, the function returns a complex number array where each element has a real component whose value equals the provided fill value and where each element has an imaginary component equal to 0.

Examples

var dtypes = require( '@stdlib/array-dtypes' );
var zeros = require( '@stdlib/array-zeros' );
var fullLike = require( '@stdlib/array-full-like' );

// Create a zero-filled array:
var x = zeros( 4, 'complex128' );

// Get a list of array data types:
var dt = dtypes();

// Generate filled arrays...
var y;
var i;
for ( i = 0; i < dt.length; i++ ) {
    y = fullLike( x, 1.0, dt[ i ] );
    console.log( y );
}

See Also

• @stdlib/array-full: create a filled array having a specified length.
• @stdlib/array-ones-like: create an array filled with ones and having the same length and data type as a provided array.
• @stdlib/array-zeros-like: create a zero-filled array having the same length and data type as a provided array.

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 © 2016-2026. The Stdlib Authors.