decorators-es6

Decorators for es6+, with promise support(Async support)

Install

npm install decorators-es6

yarn add decorators-es6

Decorators

• debounce
• memoize
• cache - alias for memoize
• throttle

Features

• Easy to use as decorator in es6
• Promise support
• Decorated function return value in promise chain
• Async(work with async as promise)

Warning

For use this package your app need to support these features(Babel or Polyfills):

• Promise
• arrow functions () => {}
• import, export

Usage

debounce(time)

Default debounce time = 500ms

import { debounce } from 'decorators-es6';
 
class Store {
    message = 'msg';
 
    @debounce(1000)
    changeMessage = (message) => {
        this.message = message;
        return 'updated';
    };
 
    @debounce(1000)
    updateOnServer = (message) => {
        return axios.post('/message/update', {message});
    }
}
 
const store = new Store();
store.changeMessage('msg2');
 
store.changeMessage('msg2').then(value => {
    //debounce firing;
    console.log(value) // 'updated'
});
 
store.updateOnServer('msg2').then(response => {
    //debounce firing;
    console.log(response) // axios response from server(Promise resolve)
});

memoize(time) or cache(time)

Default memoize time = 9999999ms

import { memoize} from 'decorators-es6';
 
class Service {
    @memoize()
    calc = (number) => {
        return number * 5;
    };
    
    // memoize product info for 100 secs
    @memoize(100000) 
    getProductFromServer = (productId) => {
        return axios.post('/product', {productId});
    }
}
 
const service = new Service();
service.calc(10).then(result => {
    console.log(result);
})
 
service.getProductFromServer().then(response => {
    console.log(response); // response from axios for example
    store.product = response.data.product;
})

throtle(time)

Default debounce time = 500ms Example: see debounce example