Wish you had some immutability in Javascript? Now you can!
var t = {a: 1, b: 2}.immutable();
console.log(t.a, t.b);
try {
t.a = 3; // -> Uncaught Error: a is immutable and cannot be modified.
} catch (e) {
console.log(e);
}
var t2 = t.copy({a: 3});
When hosting our web applications, we often have one public IP
address (i.e., an IP address visible to the outside world)
using which we want to host multiple web apps. For example, one
may wants to host three different web apps respectively for
example1.com, example2.com, and example1.com/images on
the same machine using a single IP address.
How can we do that? Well, the good news is Internet browsers