Function insert

explainshell/web/static/js/d3.v3.js:798–800

(d, i)

    name = d3.ns.qualify(name);
    if (typeof before !== "function") before = d3_selection_selector(before);
    function insert(d, i) {
      return this.insertBefore(d3_document.createElementNS(this.namespaceURI, name), before.call(this, d, i));
    }
    function insertNS(d, i) {
      return this.insertBefore(d3_document.createElementNS(name.space, name.local), before.call(this, d, i));
    }