微件:External demands

<script>
const elements = document.getElementsByClassName('external_demand_span');

const appendTo = document.getElementById('external_demand');

const cats = new Map();

for (let i = 0; i < elements.length; i++) {
    const element = elements[i];
    const clone = element.cloneNode(true);
    console.log(element);
    console.log(element.getAttribute('custom-attr'));
    if (!cats.has(element.external_demand_from)) {
    	cats[element.external_demand_from] = new Array();
    }
    cats[element.external_demand_from].push(clone);
    clone.style.display = 'inline';
    clone.classList.remove('external_demand_span')
}

cats.forEach((value, key, map) => {
    const p = document.createElement('p');
    p.innerText = key;
    appendTo.appendChild(p);
    value.forEach((s) => {
        appendTo.appendChild(s);	
    })
})

</script>