Fix: RangeError on Number.padLeft on large numbers

Author: wsbrs

spec/models/time.spec.js

@@ -0,0 +1,12 @@
+const config = require('./../../src/models/time');
+const expect = require('chai').expect;
+
+describe('time class', () => {
+    it('Formats numbers', () => {
+        expect((new Number(1)).padLeft(2, "0")).to.equal('01');
+        expect((new Number(12)).padLeft(2, "0")).to.equal('12');
+        expect((new Number(123)).padLeft(2, "0")).to.equal('123');
+        expect((new Number(1234)).padLeft(2, "0")).to.equal('1234');
+    });
+});
+

src/models/time.js

@@ -9,8 +9,15 @@ const roundedRegex = /(\[\%([^\>\]]*)\:([^\]]*)\])/ig;
 const conditionalSimpleRegex = /([0-9]*)\>(.*)/ig;
 const defaultRegex = /(\[\%([^\]]*)\])/ig;
 
+/**
+ * Adds leading zeroes to the number
+ *
+ * @param {Number} n
+ * @param {String} str
+ * @returns {String}
+ */
 Number.prototype.padLeft = function (n, str) {
-    return Array(n - String(this).length + 1).join(str || '0') + this;
+    return Array(Math.max(0, n - String(this).length + 1)).join(str || '0') + this;
 };
 
 /**