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Fill an input ndarray with a specified value.
import fill from 'https://cdn.jsdelivr.net/gh/stdlib-js/ndarray-base-fill@esm/index.mjs';Fills an input ndarray with a specified value.
import Float64Array from 'https://cdn.jsdelivr.net/gh/stdlib-js/array-float64@esm/index.mjs';
// Create a data buffer:
var xbuf = new Float64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
// Define the shape of the input array:
var shape = [ 3, 1, 2 ];
// Define the array strides:
var sx = [ 2, 2, 1 ];
// Define the index offset:
var ox = 0;
// Create the input ndarray-like object:
var x = {
'dtype': 'float64',
'data': xbuf,
'shape': shape,
'strides': sx,
'offset': ox,
'order': 'row-major'
};
fill( x, 10.0 );
console.log( x.data );
// => <Float64Array>[ 10.0, 10.0, 10.0, 10.0, 10.0, 10.0 ]The function accepts the following arguments:
- x: array-like object containing an input ndarray.
- value: scalar value.
A provided ndarray should be an object with the following properties:
- dtype: data type.
- data: data buffer.
- shape: dimensions.
- strides: stride lengths.
- offset: index offset.
- order: specifies whether an ndarray is row-major (C-style) or column major (Fortran-style).
- If
valueis a number andxhas a complex data type, the function fills an input ndarray with a complex number whose real component equals the provided scalarvalueand whose imaginary component is zero. - A
valuemust be able to safely cast to the input ndarray data type. Scalar values having floating-point data types (both real and complex) are allowed to downcast to a lower precision data type of the same kind (e.g., a scalar double-precision floating-point number can be used to fill a'float32'input ndarray). - The function mutates the input ndarray.
<!DOCTYPE html>
<html lang="en">
<body>
<script type="module">
var discreteUniform = require( 'https://cdn.jsdelivr.net/gh/stdlib-js/random-base-discrete-uniform' ).factory;
import filledarrayBy from 'https://cdn.jsdelivr.net/gh/stdlib-js/array-filled-by@esm/index.mjs';
import ndarray2array from 'https://cdn.jsdelivr.net/gh/stdlib-js/ndarray-base-to-array@esm/index.mjs';
import fill from 'https://cdn.jsdelivr.net/gh/stdlib-js/ndarray-base-fill@esm/index.mjs';
var x = {
'dtype': 'generic',
'data': filledarrayBy( 10, 'generic', discreteUniform( -100, 100 ) ),
'shape': [ 5, 2 ],
'strides': [ 2, 1 ],
'offset': 0,
'order': 'row-major'
};
fill( x, 10.0 );
console.log( ndarray2array( x.data, x.shape, x.strides, x.offset, x.order ) );
</script>
</body>
</html>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.
See LICENSE.
Copyright © 2016-2025. The Stdlib Authors.
