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Add from benchmarks
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‎lib/node_modules/@stdlib/array/float32/benchmark/benchmark.from.js

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2018 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var bench = require( '@stdlib/bench' );
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var ITERATOR_SYMBOL = require( '@stdlib/symbol/iterator' );
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var isFloat32Array = require( '@stdlib/assert/is-float32array' );
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var pkg = require( './../package.json' ).name;
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var Float32Array = require( './../lib' );
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// VARIABLES //
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var opts = {
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'skip': ( ITERATOR_SYMBOL === null )
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};
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// MAIN //
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bench( pkg+'::typed_array:from', function benchmark( b ) {
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var buf;
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var arr;
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var i;
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buf = new Float32Array( [ 1.0, 2.0 ] );
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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arr = Float32Array.from( buf );
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if ( arr.length !== 2 ) {
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b.fail( 'should have length 2' );
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}
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}
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b.toc();
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if ( !isFloat32Array( arr ) ) {
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b.fail( 'should return a Float32Array' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});
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bench( pkg+'::typed_array,clbk:from', function benchmark( b ) {
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var buf;
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var arr;
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var i;
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buf = new Float32Array( [ 1.0, 2.0 ] );
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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arr = Float32Array.from( buf, clbk );
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if ( arr.length !== 2 ) {
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b.fail( 'should have length 2' );
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}
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}
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b.toc();
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if ( !isFloat32Array( arr ) ) {
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b.fail( 'should return a Float32Array' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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function clbk( v ) {
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return v + 1.0;
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}
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});
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bench( pkg+'::array:from', function benchmark( b ) {
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var buf;
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var arr;
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var i;
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buf = [ 1.0, 2.0 ];
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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arr = Float32Array.from( buf );
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if ( arr.length !== 2 ) {
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b.fail( 'should have length 2' );
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}
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}
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b.toc();
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if ( !isFloat32Array( arr ) ) {
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b.fail( 'should return a Float32Array' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});
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bench( pkg+'::array,clbk:from', function benchmark( b ) {
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var buf;
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var arr;
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var i;
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buf = [ 1.0, 2.0 ];
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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arr = Float32Array.from( buf, clbk );
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if ( arr.length !== 2 ) {
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b.fail( 'should have length 2' );
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}
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}
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b.toc();
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if ( !isFloat32Array( arr ) ) {
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b.fail( 'should return a Float32Array' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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function clbk( v ) {
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return v + 1.0;
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}
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});
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bench( pkg+'::iterable:from', opts, function benchmark( b ) {
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var arr;
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var i;
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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arr = Float32Array.from( createIterable() );
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if ( arr.length !== 2 ) {
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b.fail( 'should have length 2' );
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}
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}
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b.toc();
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if ( !isFloat32Array( arr ) ) {
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b.fail( 'should return a Float32Array' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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function createIterable() {
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var out;
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var i;
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out = {};
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out[ ITERATOR_SYMBOL ] = iterator;
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i = 0;
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return out;
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function iterator() {
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return {
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'next': next
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};
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}
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function next() {
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i += 1;
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if ( i <= 2 ) {
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return {
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'value': 0.0,
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'done': false
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};
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}
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return {
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'done': true
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};
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}
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}
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});
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bench( pkg+'::iterable,clbk:from:', opts, function benchmark( b ) {
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var arr;
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var i;
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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arr = Float32Array.from( createIterable(), clbk );
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if ( arr.length !== 2 ) {
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b.fail( 'should have length 2' );
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}
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}
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b.toc();
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if ( !isFloat32Array( arr ) ) {
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b.fail( 'should return a Float32Array' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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function createIterable() {
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var out;
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var i;
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out = {};
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out[ ITERATOR_SYMBOL ] = iterator;
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i = 0;
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return out;
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function iterator() {
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return {
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'next': next
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};
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}
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function next() {
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i += 1;
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if ( i <= 2 ) {
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return {
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'value': 1.0,
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'done': false
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};
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}
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return {
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'done': true
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};
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}
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}
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function clbk( v ) {
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return v + 1.0;
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}
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});

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