mingo/esm/operators/query/element/exists.js

MongoDB query language for in-memory objects

import { isArray, resolve, resolveGraph } from "../../../util/_internal";
const $exists = (selector, value, _options) => {
  const nested = selector.includes(".");
  const b = !!value;
  if (!nested || selector.match(/\.\d+$/)) {
    const opts2 = { pathArray: selector.split(".") };
    return (o) => resolve(o, selector, opts2) !== void 0 === b;
  }
  const parentSelector = selector.substring(0, selector.lastIndexOf("."));
  const opts = { pathArray: parentSelector.split("."), preserveIndex: true };
  return (o) => {
    const path = resolveGraph(o, selector, opts);
    const val = resolve(path, parentSelector, opts);
    return isArray(val) ? val.some((v) => v !== void 0) === b : val !== void 0 === b;
  };
};
export {
  $exists
};