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test: add tests upto 2d
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‎lib/node_modules/@stdlib/ndarray/base/find/test/test.0d.js

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 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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/* eslint-disable stdlib/no-redeclare */
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// MODULES //
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var tape = require( 'tape' );
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var Complex128 = require( '@stdlib/complex/float64/ctor' );
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var real = require( '@stdlib/complex/float64/real' );
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var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
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var find = require( './../lib' );
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// TESTS //
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tape( 'main export is a function', function test( t ) {
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t.ok( true, __filename );
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t.strictEqual( typeof find, 'function', 'main export is a function');
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t.end();
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});
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tape( 'the function returns the first element in a 0-dimensional ndarray which passes a test implemented by a predicate function', function test( t ) {
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var actual;
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var sv;
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var x;
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sv = scalar2ndarray( -1.0, {
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'dtype': 'float64'
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});
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x = scalar2ndarray( 4.0, {
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'dtype': 'float64'
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});
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actual = find( [ x, sv ], clbk );
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t.strictEqual( actual, 4.0, 'returns expected value' );
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x = scalar2ndarray( 3.0, {
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'dtype': 'float64'
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});
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actual = find( [ x, sv ], clbk );
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t.strictEqual( actual, -1.0, 'returns expected value' );
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t.end();
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function clbk( v ) {
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return v % 2.0 === 0.0;
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}
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});
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tape( 'the function returns the first element in a 0-dimensional ndarray which passes a test implemented by a predicate function (accessors)', function test( t ) {
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var actual;
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var sv;
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var x;
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sv = scalar2ndarray( new Complex128( -1.0, 0.0 ), {
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'dtype': 'complex128'
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});
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x = scalar2ndarray( new Complex128( 2.0, 0.0 ), {
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'dtype': 'complex128'
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});
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actual = find( [ x, sv ], clbk );
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t.deepEqual( actual, new Complex128( 2.0, 0.0 ), 'returns expected value' );
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x = scalar2ndarray( new Complex128( 3.0, 0.0 ), {
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'dtype': 'complex128'
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});
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actual = find( [ x, sv ], clbk );
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t.deepEqual( actual, new Complex128( -1.0, 0.0 ), 'returns expected value' );
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t.end();
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function clbk( v ) {
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return real( v ) % 2.0 === 0;
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}
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});

‎lib/node_modules/@stdlib/ndarray/base/find/test/test.1d.js

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 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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/* eslint-disable stdlib/no-redeclare */
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// MODULES //
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var tape = require( 'tape' );
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var oneTo = require( '@stdlib/array/one-to' );
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var real = require( '@stdlib/complex/float64/real' );
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var imag = require( '@stdlib/complex/float64/imag' );
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var Complex128 = require( '@stdlib/complex/float64/ctor' );
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var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
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var ndarray = require( '@stdlib/ndarray/ctor' );
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var find = require( './../lib' );
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// TESTS //
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tape( 'main export is a function', function test( t ) {
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t.ok( true, __filename );
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t.strictEqual( typeof find, 'function', 'main export is a function');
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t.end();
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});
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tape( 'the function returns the first element in a 1-dimensional ndarray which passes a test implemented by a predicate function', function test( t ) {
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var actual;
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var sv;
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var x;
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sv = scalar2ndarray( -1.0, {
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'dtype': 'float64'
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});
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x = ndarray( 'float64', oneTo( 8, 'float64' ), [ 4 ], [ 1 ], 0, 'row-major' );
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actual = find( [ x, sv ], clbk );
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t.strictEqual( actual, 2.0, 'returns expected value' );
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x = ndarray( 'float64', oneTo( 8, 'float64' ), [ 4 ], [ 2 ], 0, 'row-major' );
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actual = find( [ x, sv ], clbk );
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t.strictEqual( actual, -1.0, 'returns expected value' );
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t.end();
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function clbk( v ) {
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return v % 2.0 === 0.0;
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}
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});
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tape( 'the function returns the first element in a 1-dimensional ndarray which passes a test implemented by a predicate function (accessors)', function test( t ) {
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var actual;
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var sv;
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var x;
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sv = scalar2ndarray( new Complex128( -1.0, 0.0 ), {
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'dtype': 'complex128'
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});
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x = ndarray( 'complex128', oneTo( 8, 'complex128' ), [ 4 ], [ 1 ], 0, 'row-major' );
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actual = find( [ x, sv ], clbk );
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t.deepEqual( actual, new Complex128( 2.0, 0.0 ), 'returns expected value' );
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x = ndarray( 'complex128', oneTo( 8, 'complex128' ), [ 4 ], [ 2 ], 0, 'row-major' );
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actual = find( [ x, sv ], clbk );
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t.deepEqual( actual, new Complex128( -1.0, 0.0 ), 'returns expected value' );
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t.end();
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function clbk( v ) {
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return real( v ) % 2.0 === 0.0;
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}
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});
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tape( 'the function supports specifying the callback execution context', function test( t ) {
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var expected;
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var indices;
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var values;
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var arrays;
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var actual;
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var ctx;
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var sv;
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var x;
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x = new ndarray( 'float64', oneTo( 8, 'float64'), [ 4 ], [ 1 ], 0, 'row-major' );
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sv = scalar2ndarray( -1.0, {
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'dtype': 'float64'
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});
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indices = [];
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values = [];
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arrays = [];
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ctx = {
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'count': 0
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};
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actual = find( [ x, sv ], clbk, ctx );
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t.strictEqual( actual, 2.0, 'returns expected value' );
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t.strictEqual( ctx.count, 2, 'returns expected value' );
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expected = [
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1.0,
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2.0
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];
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t.deepEqual( values, expected, 'returns expected value' );
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expected = [
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[ 0 ],
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[ 1 ]
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];
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t.deepEqual( indices, expected, 'returns expected value' );
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expected = [
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x,
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x
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];
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t.deepEqual( arrays, expected, 'returns expected value' );
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t.end();
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function clbk( v, idx, arr ) {
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this.count += 1; // eslint-disable-line no-invalid-this
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values.push( v );
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indices.push( idx );
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arrays.push( arr );
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return v % 2.0 === 0.0;
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}
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});
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tape( 'the function supports specifying the callback execution context (accessors)', function test( t ) {
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var expected;
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var indices;
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var values;
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var arrays;
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var actual;
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var ctx;
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var sv;
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var x;
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x = ndarray( 'complex128', oneTo( 8, 'complex128' ), [ 4 ], [ 1 ], 0, 'row-major' );
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sv = scalar2ndarray( new Complex128( -1.0, 0.0 ), {
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'dtype': 'complex128'
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});
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indices = [];
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values = [];
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arrays = [];
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ctx = {
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'count': 0
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};
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actual = find( [ x, sv ], clbk, ctx );
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t.deepEqual( actual, new Complex128( 2.0, 0.0 ), 'returns expected value' );
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t.strictEqual( ctx.count, 2, 'returns expected value' );
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expected = [
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[ 1.0, 0.0 ],
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[ 2.0, 0.0 ]
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];
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t.deepEqual( values, expected, 'returns expected value' );
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expected = [
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[ 0 ],
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[ 1 ]
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];
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t.deepEqual( indices, expected, 'returns expected value' );
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expected = [
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x,
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x
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];
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t.deepEqual( arrays, expected, 'returns expected value' );
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t.end();
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function clbk( v, idx, arr ) {
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this.count += 1; // eslint-disable-line no-invalid-this
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values.push( [ real( v ), imag( v ) ] );
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indices.push( idx );
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arrays.push( arr );
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return real( v ) % 2.0 === 0.0;
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}
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});

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