fnoverload - Function overloading for JavaScript
There are several libraries out there that can do function overloading, but none have had an innocent enough syntax for me. I hope that others will find my version easy to use.
Please remember that unlike true overloading, this is psuedo-overloading that is performed in runtime. I have not benchmarked it in any way
How to use:
var o = require('fnoverload');
// Simple argument-count overloading
var func1 = o(
function(var1) {
console.log("Single var: " + var1);
},
function(var1, var2) {
console.log("Two vars: " + var1 + "," + var2);
}
);
// More advanced, type-based overloading
var func2 = o(
// expects string
o.function(String,
function(str) {
console.log("String: " + str);
}),
// expect string and a number, both "o.function" and "o.f" works
o.f(String, Number,
function(str, num) {
console.log("String is: " + str + ", num is: " + num);
})
);
func1("hi");
// outputs: Single var: hi
func1("hi", "hello");
// outputs: Two vars: hi,hello
func2("hi mate", 3);
// outputs: String is: hi mate, num is: 3
Both methods(simple and advanced) can be mixed in an var func = o(...) statement, but type-based functions will be chosen before argument-count