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various-ways-to-invoke-functions-in-dart

various-ways-to-invoke-functions-in-dart

github.com/rodydavisDevelopment6045 installsUpdated 2w ago
Repository

About various-ways-to-invoke-functions-in-dart

A Dart skill covering several ways to invoke functions, including mixed positional and named arguments, `.call`, and `Function.apply`. It is for developers learning function-call syntax and its trade-offs.

Key features

  1. 01Mix positional and named arguments
  2. 02Invoke a function with `.call`
  3. 03Dynamic invocation with `Function.apply`
  4. 04Notes on JavaScript compilation impact

Use cases

  1. 01Call functions with positional and named parameters
  2. 02Invoke a referenced function dynamically

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/rodydavis/skills --skill various-ways-to-invoke-functions-in-dart

After installing, type/various-ways-to-invoke-functions-in-dartin Claude Code to confirm it loaded.

Details

From the project README

Various Ways to Invoke Functions in Dart

There are multiple ways to call a Function in Dart.

The examples below will assume the following function:

void myFunction(int a, int b, {int? c, int? d}) {
  print((a, b, c, d));
}

But recently I learned that you can call a functions positional arguments in any order mixed with the named arguments. 🤯

myFunction(1, 2, c: 3, d: 4);
myFunction(1, c: 3, d: 4, 2);
myFunction(c: 3, d: 4, 1, 2);
myFunction(c: 3, 1, 2, d: 4);

In addition you can use the .call operator to invoke the function if you have a reference to it:

myFunction.call(1, 2, c: 3, d: 4);

You can also use Function.apply to dynamically invoke a function with a reference but it should be noted that it will effect js dart complication size and performance:

Function.apply(myFunction, [1, 2], {#c: 3, #d: 4});

All of these methods print the following:

(1, 2, 3, 4)

Demo

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