Method parse

www/js/_hyperscript.js:4309–4317

(parser, root)

      this.args = { root, target };
    }
    static parse(parser, root) {
      if (!parser.matchToken("in")) return;
      var target = parser.requireElement("unaryExpression");
      var result = new _InExpression(root, target);
      if (parser.matchToken("where")) {
        result = new WhereExpression(result, CollectionExpression.parseOperand(parser));
      }
      return parser.parseElement("indirectExpression", result);
    }
    resolve(context, { root: rootVal, target }) {
      if (rootVal == null) return [];
      var returnArr = [];