feat(WIP): create main.js and index.js

Author: LoayAhmed304

lib/node_modules/@stdlib/ndarray/base/where/lib/index.js

@@ -0,0 +1,100 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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.
+*/
+
+'use strict';
+
+/**
+* Apply a condition to elements in two input ndarrays and assign results to elements in an output ndarray.
+*
+* @module @stdlib/ndarray/base/where
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+* var Uint8Array = require( '@stdlib/array/uint8' );
+* var where = require( '@stdlib/ndarray/base/where' );
+*
+* // Create data buffers:
+* var cbuf = new Uint8Array( [ 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1 ] );
+* var xbuf = new Float64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ] );
+* var ybuf = new Float64Array( [ -1.0, -2.0, -3.0, -4.0, -5.0, -6.0, -7.0, -8.0, -9.0, -10.0, -11.0, -12.0 ] );
+* var obuf = new Float64Array( 6 );
+*
+* // Define the shape of the input and output arrays:
+* var shape = [ 3, 1, 2 ];
+*
+* // Define the array strides:
+* var sc = [ 4, 4, 1 ];
+* var sx = [ 4, 4, 1 ];
+* var sy = [ 4, 4, 1 ];
+* var so = [ 2, 2, 1 ];
+*
+* // Define the index offsets:
+* var oc = 1;
+* var ox = 1;
+* var oy = 1;
+* var oo = 0;
+*
+* // Create the input and output ndarray-like objects:
+* var condition = {
+*     'dtype': 'uint8',
+*     'data': cbuf,
+*     'shape': shape,
+*     'strides': sc,
+*     'offset': oc,
+*     'order': 'row-major'
+* };
+* var x = {
+*     'dtype': 'float64',
+*     'data': xbuf,
+*     'shape': shape,
+*     'strides': sx,
+*     'offset': ox,
+*     'order': 'row-major'
+* };
+* var y = {
+*     'dtype': 'float64',
+*     'data': ybuf,
+*     'shape': shape,
+*     'strides': sy,
+*     'offset': oy,
+*     'order': 'row-major'
+* };
+* var out = {
+*     'dtype': 'float64',
+*     'data': obuf,
+*     'shape': shape,
+*     'strides': so,
+*     'offset': oo,
+*     'order': 'row-major'
+* };
+*
+* // Apply the condition:
+* where( [ condition, x, y, out ] );
+*
+* console.log( out.data );
+* // => <Float64Array>[ -2.0, -3.0, 6.0, 7.0, -10.0, -11.0 ]
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;