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Task/AKS-test-for-primes/JavaScript/aks-test-for-primes.js

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+var i, p, pascal, primerow, primes, show, _i;
+
+pascal = function() {
+  var a;
+  a = [];
+  return function() {
+    var b, i;
+    if (a.length === 0) {
+      return a = [1];
+    } else {
+      b = (function() {
+        var _i, _ref, _results;
+        _results = [];
+        for (i = _i = 0, _ref = a.length - 1; 0 <= _ref ? _i < _ref : _i > _ref; i = 0 <= _ref ? ++_i : --_i) {
+          _results.push(a[i] + a[i + 1]);
+        }
+        return _results;
+      })();
+      return a = [1].concat(b).concat([1]);
+    }
+  };
+};
+
+show = function(a) {
+  var degree, i, sgn, show_x, str, _i, _ref;
+  show_x = function(e) {
+    switch (e) {
+      case 0:
+        return "";
+      case 1:
+        return "x";
+      default:
+        return "x^" + e;
+    }
+  };
+  degree = a.length - 1;
+  str = "(x - 1)^" + degree + " =";
+  sgn = 1;
+  for (i = _i = 0, _ref = a.length; 0 <= _ref ? _i < _ref : _i > _ref; i = 0 <= _ref ? ++_i : --_i) {
+    str += ' ' + (sgn > 0 ? "+" : "-") + ' ' + a[i] + show_x(degree - i);
+    sgn = -sgn;
+  }
+  return str;
+};
+
+primerow = function(row) {
+  var degree;
+  degree = row.length - 1;
+  return row.slice(1, degree).every(function(x) {
+    return x % degree === 0;
+  });
+};
+
+p = pascal();
+
+for (i = _i = 0; _i <= 7; i = ++_i) {
+  console.log(show(p()));
+}
+
+p = pascal();
+
+p();
+
+p();
+
+primes = (function() {
+  var _j, _results;
+  _results = [];
+  for (i = _j = 1; _j <= 49; i = ++_j) {
+    if (primerow(p())) {
+      _results.push(i + 1);
+    }
+  }
+  return _results;
+})();
+
+console.log("");
+
+console.log("The primes upto 50 are: " + primes);