37 lines
830 B
Markdown
37 lines
830 B
Markdown
Function Overloading
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====================
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{{#title Function Overloading}}
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[Functions](functions.md) defined in script can be _overloaded_ by _arity_ (i.e. they are resolved
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purely upon the function's _name_ and _number_ of parameters, but not parameter _types_ since all
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parameters are dynamic).
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New definitions _overwrite_ previous definitions of the same name and number of parameters.
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```js
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fn foo(x, y, z) {
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print(`Three!!! ${x}, ${y}, ${z}`);
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}
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fn foo(x) {
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print(`One! ${x}`);
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}
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fn foo(x, y) {
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print(`Two! ${x}, ${y}`);
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}
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fn foo() {
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print("None.");
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}
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fn foo(x) { // <- overwrites previous definition
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print(`HA! NEW ONE! ${x}`);
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}
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foo(1,2,3); // prints "Three!!! 1,2,3"
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foo(42); // prints "HA! NEW ONE! 42"
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foo(1,2); // prints "Two!! 1,2"
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foo(); // prints "None."
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```
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