mathjs/lib/esm/expression/transform/nullish.transform.js

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with dif

import { createNullish } from '../../function/logical/nullish.js';
import { factory } from '../../utils/factory.js';
import { isCollection } from '../../utils/is.js';
var name = 'nullish';
var dependencies = ['typed', 'matrix', 'size', 'flatten', 'deepEqual'];
export var createNullishTransform = /* #__PURE__ */factory(name, dependencies, _ref => {
  var {
    typed,
    matrix,
    size,
    flatten,
    deepEqual
  } = _ref;
  var nullish = createNullish({
    typed,
    matrix,
    size,
    flatten,
    deepEqual
  });
  function nullishTransform(args, math, scope) {
    var left = args[0].compile().evaluate(scope);

    // If left is not a collection and not nullish, short-circuit and return it
    if (!isCollection(left) && left != null && left !== undefined) {
      return left;
    }

    // Otherwise evaluate right and apply full nullish semantics (incl. element-wise)
    var right = args[1].compile().evaluate(scope);
    return nullish(left, right);
  }
  nullishTransform.rawArgs = true;
  return nullishTransform;
}, {
  isTransformFunction: true
});