如何确定JavaScript中的OS路径分隔符？

const path = require('path');
const osPathSeparator = path.sep;

const path = require('path');
const osPathSeparator = path.sep;

const pathComponent1 = 'path';
const pathComponent2 = 'to';
const pathComponent3 = 'file';

const combinedPath = path.join(pathComponent1, pathComponent2, pathComponent3);