React like hooks for the masses
npm install augmentor   !WebReflection status
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React like hooks for the masses.
#### V2 Breaking change
Both useState and useReducer are now synchronous by default. If you invoke multiple state changes at once, you can opt into asynchronous execution via the optional argument {async: true}.
This change was made to keep _augmentor_ defaults similar to what developers coming from other hooks based libraries expect.
* Basic Hooks
* useState, with optional {async: true, always: true} second parameter to use deferred updates, _sync_ by default, and always call the hook, even if the state is the same, _false_ by default.
* useEffect
* useContext, which can be defined via createContext(value)
* Additional Hooks
* useReducer, with optional {async: true, always: true} third parameter to use deferred updates, _sync_ by default, and always call the hook, even if the state is the same, _false_ by default.
* useCallback
* useMemo
* useRef
* useLayoutEffect
* Third parts exported utilities
* hasEffect(augmentedCallback) returns true if augmentedCallback used some effect
* dropEffect(augmentedCallback) executes any cleanup left from last useEffect(...) invocation
You can test this example directly on Code Pen.
``js
import {augmentor, useState} from 'augmentor';
// augment any function once
const a = augmentor(test);
a();
// ... or many times ...
const [b, c] = [test, test].map(augmentor);
b();
c();
function test() {
const [count, setCount] = useState(0);
// log current count value
console.log(count);
// will invoke this augmented function each second
setTimeout(() => setCount(count + 1), 1000);
}
`
If by any chance you've read, and understood, the related blog post, you'd realize a single augmented function is indeed not good for prototypes or shared methods, as one context could interfere with any other previous context that used that method before. ` // GOOD: this is how you'd do it 👍 That being said, if you really want to share a context within a single augmented function, meaning that you understand, and know, what you are doing, you can ` const textInjector = contextual(function (text) { textInjector.call(div, 'hello'); Please bear in mind that _contextualized_ functions effects will also refer to the previous context, not necessarily the current one, so that you see it's very easy to create troubles sharing, accepting, or passing, multiple contexts to the same augmented stack. As summary,
Can I pass a context to an augmented function?
While this library provides a way to use a context, it's somehow a footgun to enable multiple contexts for a single augmented stack, so by default you cannot use augmented.call(ctx) or augmented.apply(ctx, []), 'cause no context whatsoever is passed along.js
// WRONG: this is a very bad idea, as any MyComp instance
// could potentially interfere with other instances
MyComp.prototype.doThings = augmentor(doThings);
class MyComp {
constructor() {
const {doThings} = this;
// augment a bound method/function per each instance
this.doThings = augmentor(doThings.bind(this));
}
doThings() {
// where actually you do hooky-things
}
}
`
use the contextual utility provided by this library.js
import {contextual} from 'augmentor';
this.textContent = text;
});
textInjector.call(p, 'there!');
``augmentor(method.bind(context)) is the best way to use a context within an augmented function, but contextual can help covering other weird edge cases too.