it's not. `toggle` is a pointer to a function name and "toggle()" appears to be an expression which is parsed and then executed (scary).
you can on on:click={() => toggle()} in svelte which is more similar, but it isn't parsed and executed, it is a pointer to an anonymous function which is directly executed.
on:click={toggle()} in svelte would run the function immediately (probably not what you want) and return the result as the handler for the on:click
Not a pointer to a function. In JS, functions are first class objects. You might as well say toggle() is an invocation of a pointer to a function.
<div onclick="toggle"> has existed since the dawn of JavaScript in Netscape Navigator 2.0 Beta Gold. Your complaint about the syntax is in fact baked into the foundations of the web.
