Function removeChildrenAndAdd

editor/js/extra/codemirror/codemirror.js:8410–8412

(parent, e)

  }

  function removeChildrenAndAdd(parent, e) {
    return removeChildren(parent).appendChild(e);
  }

  var contains = CodeMirror.contains = function(parent, child) {
    if (child.nodeType == 3) // Android browser always returns false when child is a textnode