Initial commit

ui/stream/common.js

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+// Sshwifty - A Web SSH client
+//
+// Copyright (C) 2019 Rui NI <nirui@gmx.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+/**
+ * Get one unsafe random number
+ *
+ * @param {number} min Min value (included)
+ * @param {number} max Max value (not included)
+ *
+ * @returns {number} Get random number
+ *
+ */
+export function getRand(min, max) {
+  return Math.floor(Math.random() * (max - min + 1) + min);
+}
+
+/**
+ * Get a group of random number
+ *
+ * @param {number} n How many number to get
+ * @param {number} min Min value (included)
+ * @param {number} max Max value (not included)
+ *
+ * @returns {Array<number>} A group of random number
+ */
+export function getRands(n, min, max) {
+  let r = [];
+
+  for (let i = 0; i < n; i++) {
+    r.push(getRand(min, max));
+  }
+
+  return r;
+}