time-to-botec

Benchmark sampling in different programming languages
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main.js (1112B)

      1 /**
      2 * @license Apache-2.0
      3 *
      4 * Copyright (c) 2018 The Stdlib Authors.
      5 *
      6 * Licensed under the Apache License, Version 2.0 (the "License");
      7 * you may not use this file except in compliance with the License.
      8 * You may obtain a copy of the License at
      9 *
     10 *    http://www.apache.org/licenses/LICENSE-2.0
     11 *
     12 * Unless required by applicable law or agreed to in writing, software
     13 * distributed under the License is distributed on an "AS IS" BASIS,
     14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     15 * See the License for the specific language governing permissions and
     16 * limitations under the License.
     17 */
     18 
     19 'use strict';
     20 
     21 // MAIN //
     22 
     23 /**
     24 * Returns the number of elements in an array.
     25 *
     26 * @param {(NonNegativeIntegerArray|EmptyArray)} shape - array shape
     27 * @returns {NonNegativeInteger} number of elements
     28 *
     29 * @example
     30 * var n = numel( [ 3, 3, 3 ] );
     31 * // returns 27
     32 */
     33 function numel( shape ) {
     34 	var ndims;
     35 	var n;
     36 	var i;
     37 
     38 	ndims = shape.length;
     39 	if ( ndims === 0 ) {
     40 		return 0;
     41 	}
     42 	n = 1;
     43 	for ( i = 0; i < ndims; i++ ) {
     44 		n *= shape[ i ];
     45 	}
     46 	return n;
     47 }
     48 
     49 
     50 // EXPORTS //
     51 
     52 module.exports = numel;