afterRender( hook )

afterRender.js

const AfterRenderMixin = {
    componentDidMount : callAfterRenderHooks,
    componentDidUpdate : callAfterRenderHooks,

    afterRender( hook ){
        const { _callAfterRender } = this;
        this._callafterRender = _callAfterRender ? () => {
            _callAfterRender();
            hook();
        } : hook;
    }
}

function callAfterRenderHooks(){
    if( this._callAfterRender ){
        this._callAfterRender();
        this._callAfterRender = null;
    } 
}

class HookedComponent extends React.Component {
}

Object.assign( HookedComponent.prototype, AfterRenderMixin );