let http = require('http') const PORT = 7000; const HtmlTemplateString = (header,body,footer) => { return ` ${header}

${body}

${footer} `; } let page1 =HtmlTemplateString( `Hello`, `

Hello World END

`, ``) http.createServer( (request,res)=>{ if (request.url == '/') { res.writeHead(200, { 'Content-Type': 'text/html', 'Content-Length': page1.length, 'Expires': new Date().toUTCString() }) res.end(page1); } else { return response.end('Invalid request'); } } ).listen(PORT);