Once we have type guards, I would expect the JavaScript programming style to
slightly change. Currently, number-valued arguments are implemented like this:
function foo(x) {
x = Number(x);
}
With guards, you would use:
function foo(x :: Number) {
}
It might make sense to standardize simple guard methods now, for example:
function foo(x) {
Object.guard(x, Number);
}
Advantages: Helps tools (to infer types, to generate documentation), can later
be refactored to real guards.
--
Dr. Axel Rauschmayer
a...@rauschma.de
home: rauschma.de
twitter: twitter.com/rauschma
blog: 2ality.com
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