UNPKG

@stdlib/array

Version:
148 lines (89 loc) 3.52 kB
<!-- @license Apache-2.0 Copyright (c) 2023 The Stdlib Authors. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. --> # filledndBy > Create a filled n-dimensional nested array according to a provided callback function. <!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. --> <section class="intro"> </section> <!-- /.intro --> <!-- Package usage documentation. --> <section class="usage"> ## Usage ```javascript var filledndBy = require( '@stdlib/array/base/fillednd-by' ); ``` #### filledndBy( shape, clbk\[, thisArg] ) Returns a filled n-dimensional nested array according to a provided callback function. ```javascript function clbk() { return 1.0; } var out = filledndBy( [ 2, 3 ], clbk ); // returns [ [ 1.0, 1.0, 1.0 ], [ 1.0, 1.0, 1.0 ] ] ``` When invoked, a callback function is provided a single argument: - **indices**: current array element indices. To set the callback execution context, provide a `thisArg`. <!-- eslint-disable no-invalid-this --> ```javascript function clbk() { this.count += 1; return 1.0; } var ctx = { 'count': 0 }; var out = filledndBy( [ 1, 1, 1, 2, 3 ], clbk, ctx ); // returns [ [ [ [ [ 1.0, 1.0, 1.0 ], [ 1.0, 1.0, 1.0 ] ] ] ] ]; var cnt = ctx.count; // returns 6 ``` </section> <!-- /.usage --> <!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. --> <section class="notes"> </section> <!-- /.notes --> <!-- Package usage examples. --> <section class="examples"> ## Examples <!-- eslint no-undef: "error" --> ```javascript var constantFunction = require( '@stdlib/utils/constant-function' ); var filledndBy = require( '@stdlib/array/base/fillednd-by' ); var out = filledndBy( [ 1, 3 ], constantFunction( 0.0 ) ); // returns [ [ 0.0, 0.0, 0.0 ] ] out = filledndBy( [ 3, 1 ], constantFunction( 'beep' ) ); // returns [ [ 'beep' ], [ 'beep' ], [ 'beep' ] ] out = filledndBy( [ 1, 1, 3 ], constantFunction( null ) ); // returns [ [ [ null, null, null ] ] ] out = filledndBy( [ 1, 3, 1 ], constantFunction( true ) ); // returns [ [ [ true ], [ true ], [ true ] ] ] out = filledndBy( [ 1, 1, 1, 3 ], constantFunction( void 0 ) ); // returns [ [ [ [ undefined, undefined, undefined ] ] ] ] ``` </section> <!-- /.examples --> <!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. --> <section class="references"> </section> <!-- /.references --> <!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. --> <section class="related"> </section> <!-- /.related --> <!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. --> <section class="links"> </section> <!-- /.links -->