A simple JavaScript interpretation of the title of this book: https://mitpress.mit.edu/books/10-print-chr2055rnd1-goto-10-0 (Not as elegant as the original, I know.)

10PRINT.js

var numTimes = 100;

var r = "";

var c = function() {
  var rand = Math.random(0, 1);
  if (rand < 0.5) {
    return "/";
  } else {
    return "\\";
  }
}

for (var i = 0; i < numTimes; i++) {
  r = r + c();
}