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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
//Will be initialized when WorkerScript{} is instantiated
var cache = new Array(64);
for (var i = 0; i < 64; i++)
cache[i] = new Array(64);
function triangle(row, column) {
if (cache[row][column])
return cache[row][column]
if (column < 0 || column > row)
return -1;
if (column == 0 || column == row)
return 1;
return triangle(row-1, column-1) + triangle(row-1, column);
}
//! [0]
WorkerScript.onMessage = function(message) {
//Calculate result (may take a while, using a naive algorithm)
var calculatedResult = triangle(message.row, message.column);
//Send result back to main thread
WorkerScript.sendMessage( { row: message.row,
column: message.column,
result: calculatedResult} );
}
//! [0]
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