Hacking Angular Signals

Let’s check out what Angular Signals have under the hood, and how we can use it for extending their functionality and debugging.

What are Angular Signals

Angular Signals are functions with methods:

    const $val = signal(0);

    // function:
    const value = $val();

    // object:
    $val.set(4);
    $val.update((v) => v * 2);

How is this possible? Because in JavaScript, functions are objects:

    // declaring a function
    const double = (val: number) => val * 2;

    // adding a method
    double.isEven = (number: …

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