Initial data commit

Task/Esthetic-numbers/JavaScript/esthetic-numbers-1.js

@@ -0,0 +1,39 @@
+function isEsthetic(inp, base = 10) {
+  let arr = inp.toString(base).split('');
+  if (arr.length == 1) return false;
+  for (let i = 0; i < arr.length; i++)
+    arr[i] = parseInt(arr[i], base);
+  for (i = 0; i < arr.length-1; i++)
+    if (Math.abs(arr[i]-arr[i+1]) !== 1) return false;
+  return true;
+}
+
+function collectEsthetics(base, range) {
+  let out = [], x;
+  if (range) {
+    for (x = range[0]; x < range[1]; x++)
+      if (isEsthetic(x)) out.push(x);
+    return out;
+  } else {
+    x = 1;
+    while (out.length < base*6) {
+      s = x.toString(base);
+      if (isEsthetic(s, base)) out.push(s.toUpperCase());
+      x++;
+    }
+    return out.slice(base*4);
+  }
+}
+
+// main
+let d = new Date();
+for (let x = 2; x <= 36; x++) { // we put b17 .. b36 on top, because we can
+  console.log(`${x}:`);
+  console.log( collectEsthetics(x),
+    (new Date() - d) / 1000 + ' s');
+}
+console.log( collectEsthetics(10, [1000, 9999]),
+  (new Date() - d) / 1000 + ' s' );
+
+console.log( collectEsthetics(10, [1e8, 1.3e8]),
+  (new Date() - d) / 1000 + ' s' );