Everything can be evaluated as a boolean value

I was rereading jwz's seminal essay, "java sucks.", and it made me think of something that sucks about Java, the syntax for testing references for whether they're null:

Foo foo = bar.getFoo();

if (foo != null) {

  //

}

This is something that EnScript gets right: pretty much every EnScript expression can be evaluated as a boolean value, without having to use boolean operators.

References

Foo foo = bar.getFoo();

if (foo) { // true if foo is non-null

  //

}

Integers

int i = 0;

if (i) { // true if i is non-zero

  //

}

Strings

String s = "";

if (s) { // true if s is not empty

  //

}

Once you get used to this [COMPLETELY OBVIOUS] shorthand, it's hard going back to a language that thinks there's something magical about boolean expressions.