text: import {childMatcher} from "../matcher.js";
  
  var find = Array.prototype.find;
  
  function childFind(match) {
    return function() {
      return find.call(this.children, match);
    };
  }
  
  function childFirst() {
    return this.firstElementChild;
  }
  
  export default function(match) {
    return this.select(match == null ? childFirst
        : childFind(typeof match === "function" ? match : childMatcher(match)));
  }
  