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31 lines
1.1 KiB
31 lines
1.1 KiB
2 months ago
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// source: https://github.com/flexdinesh/browser-or-node
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// source: https://github.com/mozilla/pdf.js/blob/7ea0e40e588864cd938d1836ec61f1928d3877d3/src/shared/util.js#L24
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var isNode = function (nodeProcess) {
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return (
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typeof nodeProcess !== 'undefined' &&
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nodeProcess.versions != null &&
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nodeProcess.versions.node != null &&
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nodeProcess + '' === '[object process]'
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);
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}
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module.exports.isNode = isNode
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// determines the JavaScript platform: browser or node
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module.exports.platform = typeof process !== 'undefined' && isNode(process)
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? 'node'
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: 'browser';
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// determines whether the code is running in main thread or not
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// note that in node.js we have to check both worker_thread and child_process
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var worker_threads = module.exports.platform === 'node' && require('worker_threads');
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module.exports.isMainThread = module.exports.platform === 'node'
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? ((!worker_threads || worker_threads.isMainThread) && !process.connected)
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: typeof Window !== 'undefined';
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// determines the number of cpus available
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module.exports.cpus = module.exports.platform === 'browser'
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? self.navigator.hardwareConcurrency
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: require('os').cpus().length;
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