mingo/esm/operators/expression/string/strcasecmp.js

MongoDB query language for in-memory objects

import { evalExpr } from "../../../core/_internal";
import { isArray, isNil, isString } from "../../../util";
import { assert, simpleCmp } from "../../../util/_internal";
import { errExpectArray } from "../_internal";
const $strcasecmp = (obj, expr, options) => {
  assert(isArray(expr) && expr.length === 2, `$strcasecmp expects array(2)`);
  const args = evalExpr(obj, expr, options);
  const foe = options.failOnError;
  let t_nil = true;
  let t_str = true;
  for (const v of args) {
    t_nil &&= isNil(v);
    t_str &&= isString(v);
  }
  if (t_nil) return 0;
  if (!t_str)
    return errExpectArray(foe, `$strcasecmp arguments`, { type: "string" });
  return simpleCmp(args[0].toLowerCase(), args[1].toLowerCase());
};
export {
  $strcasecmp
};