add login/sign-up page with dark/light mode

node_modules/es-abstract/2020/Number/bitwiseNOT.js

@@ -0,0 +1,16 @@
+'use strict';
+
+var $TypeError = require('es-errors/type');
+
+var ToInt32 = require('../ToInt32');
+
+// https://262.ecma-international.org/11.0/#sec-numeric-types-number-bitwiseNOT
+
+module.exports = function NumberBitwiseNOT(x) {
+	if (typeof x !== 'number') {
+		throw new $TypeError('Assertion failed: `x` argument must be a Number');
+	}
+	var oldValue = ToInt32(x);
+	// Return the result of applying the bitwise operator op to lnum and rnum. The result is a signed 32-bit integer.
+	return ~oldValue;
+};