iter-tools-es/impls/$is-sorted/async-is-sorted.js

The iterable toolbox

const {
  asyncIterableCurry
} = require('../../internal/async-iterable.js');

const {
  defaultCompareOrder
} = require('../../internal/compare.js');

const {
  __asyncPeekerate
} = require('../$peekerate/async-peekerate.js');

async function __asyncIsSorted(iterable, compare = defaultCompareOrder) {
  const peekr = await __asyncPeekerate(iterable);

  while (!peekr.done) {
    const {
      value
    } = peekr;
    await peekr.advance();

    if (!peekr.done && compare(value, peekr.value) > 0) {
      await peekr.return();
      return false;
    }
  }

  return true;
}

exports.__asyncIsSorted = __asyncIsSorted;
const asyncIsSorted = /*#__PURE__*/asyncIterableCurry(__asyncIsSorted, {
  reduces: true,
  minArgs: 0,
  maxArgs: 1
});
exports.asyncIsSorted = asyncIsSorted;