JavaScript/jQuery Accordion - Accessibility

function registerKeyHandlers () {
    const accordion = $("#accordionContainer").dxAccordion("instance");
    accordion.registerKeyHandler("backspace", function(e) {
        // The argument "e" contains information on the event
    });
    accordion.registerKeyHandler("space", function(e) {
        // ...
    });
}

import { ..., ViewChild, AfterViewInit } from '@angular/core';
import { DxAccordionModule, DxAccordionComponent } from 'devextreme-angular';
// ...
export class AppComponent implements AfterViewInit {
    @ViewChild(DxAccordionComponent, { static: false }) accordion: DxAccordionComponent;
    // Prior to Angular 8
    // @ViewChild(DxAccordionComponent) accordion: DxAccordionComponent;

    ngAfterViewInit () {
        this.accordion.instance.registerKeyHandler('backspace', function(e) {
            // The argument "e" contains information on the event
        });
        this.accordion.instance.registerKeyHandler('space', function(e) {
            // ...
        });
    }
}
@NgModule({
    imports: [
        // ...
        DxAccordionModule
    ],
    // ...
})

<template>
    <DxAccordion :ref="myAccordionRef" />
</template>
<script>
import 'devextreme/dist/css/dx.light.css';

import DxAccordion from 'devextreme-vue/accordion';

const myAccordionRef = 'my-accordion';

export default {
    components: {
        DxAccordion
    },
    data() {
        return {
            myAccordionRef
        }
    },
    computed: {
        accordion: function() {
            return this.$refs[myAccordionRef].instance;
        }
    },
    mounted: function() {
        this.accordion.registerKeyHandler('backspace', function(e) {
            // The argument "e" contains information on the event
        });
        this.accordion.registerKeyHandler('space', function(e) {
            // ...
        });
    }
}
</script>

import React from 'react';
import 'devextreme/dist/css/dx.light.css';

import { Accordion } from 'devextreme-react/accordion';

class App extends React.Component {
    constructor(props) {
        super(props);

        this.accordionRef = React.createRef();
    }

    render() {
        return (
            <Accordion ref={this.accordionRef} />
        );
    }

    get accordion() {
        return this.accordionRef.current.instance;
    }

    componentDidMount() {
        this.accordion.registerKeyHandler('backspace', function(e) {
            // The argument "e" contains information on the event
        });
        this.accordion.registerKeyHandler('space', function(e) {
            // ...
        });
    }
}

export default App;