mingo/esm/operators/update/inc.js

MongoDB query language for in-memory objects

import { assert, isNumber, resolve } from "../../util";
import { applyUpdate, DEFAULT_OPTIONS, walkExpression } from "./_internal";
const $inc = (obj, expr, arrayFilters = [], options = DEFAULT_OPTIONS) => {
  return walkExpression(
    expr,
    arrayFilters,
    options,
    (val, node, queries) => {
      if (!node.position) {
        const n = resolve(obj, node.selector);
        assert(
          n === void 0 || isNumber(n),
          `cannot apply $inc to a value of non-numeric type`
        );
      }
      return applyUpdate(
        obj,
        node,
        queries,
        (o, k) => {
          o[k] = (o[k] ||= 0) + val;
          return true;
        },
        { buildGraph: true }
      );
    }
  );
};
export {
  $inc
};