根据值中的文本将数组拆分为小数组

console.clear()
let data = [
  "aa-we",
  "aa-we__qq",
  "aa-we__qw",
  "gsPlsOdd",
  "bc-po-lp",
  "bc-po-lp--ps",
  "de",
  "de__io",
  "de__sl",
  "de--xz",
  "ccsDdd",
];


resultO = data.reduce((acc, val, idx) => {
  if (val.match(/[A-Z]/)) {return acc;}
  const sel = val.replace(/^(.*)(__|--).*$/g, "$1");
  acc[sel] = acc[sel] || [];
  acc[sel].push(val)
  return acc;
}, {})
resultA = Object.values(resultO)

console.log(resultA)

let array = ['aa-we', 'aa-we__qq', 'aa-we__qw', 'gsPlsOdd', 'bc-po-lp', 'bc-po-lp--ps', 'de', 'de__io', 'de__sl', 'de--xz', 'ccsDdd'];

array = array.filter((a) => !a.match(/[A-Z]/))

let result = groupBy(array, (str)=> str.split(/[-_]/)[0])

console.log(Object.values(result))

function groupBy(arr, condition) {
  return arr.reduce((result, current) => {
    const key = condition(current);
    (result[key] || (result[key] = [])).push(current)
    return result
  }, {})
}