Initial data commit

Task/Password-generator/JavaScript/password-generator.js

@@ -0,0 +1,53 @@
+String.prototype.shuffle = function() {
+  return this.split('').sort(() => Math.random() - .5).join('');
+}
+
+function createPwd(opts = {}) {
+  let len    = opts.len || 5,                       // password length
+      num    = opts.num || 1,                       // number of outputs
+      noSims = opts.noSims == false ? false : true, // exclude similar?
+      out = [],
+      cur, i;
+
+  let chars = [
+    'abcdefghijkmnopqrstuvwxyz'.split(''),
+    'ABCDEFGHJKLMNPQRTUVWXY'.split(''),
+    '346789'.split(''),
+    '!"#$%&()*+,-./:;<=>?@[]^_{|}'.split('')
+  ];
+
+  if (!noSims) {
+    chars[0].push('l');
+    chars[1] = chars[1].concat('IOSZ'.split(''));
+    chars[2] = chars[2].concat('1250'.split(''));
+  }
+
+  if (len < 4) {
+    console.log('Password length changed to 4 (minimum)');
+    len = 4;
+  }
+
+  while (out.length < num) {
+    cur = '';
+    // basic requirement
+    for (i = 0; i < 4; i++)
+      cur += chars[i][Math.floor(Math.random() * chars[i].length)];
+
+    while (cur.length < len) {
+      let rnd = Math.floor(Math.random() * chars.length);
+      cur += chars[rnd][Math.floor(Math.random() * chars[rnd].length)];
+    }
+    out.push(cur);
+  }
+
+  for (i = 0; i < out.length; i++) out[i] = out[i].shuffle();
+
+  if (out.length == 1) return out[0];
+  return out;
+}
+
+// testing
+console.log( createPwd() );
+console.log( createPwd( {len: 20}) );
+console.log( createPwd( {len: 20, num: 2}) );
+console.log( createPwd( {len: 20, num: 2, noSims: false}) );