0; } 
code > span.al { color: #ff0000; font-weight: bold; } 
code > span.fu { color: #900; font-weight: bold; } 
code > span.er { color: #a61717; background-color: #e3d2d2; } 
</style>




</head>

<body>




<h1 class="title toc-ignore">Launching tasks with future</h1>



<p>The <code>future</code> package provides a lightweight way to launch
R tasks that don’t block the current R session. It was created by Henrik
Bengtsson long before the <code>promises</code> package existed—the
first CRAN release of