Summarize some error types in Node. js and summarize the node. js types.
Preface
Multiple types of errors may occur in Node. js applications. For example, if a syntax error or runtime error occurs, a JavaScript error is triggered.
XPath Data Type
XPath can be divided into four data types:
Node-set)
A node set is a set of nodes that meet the conditions returned by path matching. Other types of data cannot be converted to a node set.
Boolean)
The condition matching value returned by a function or Boole
XPath data type
XPath can be divided into four types of data:
Node Set (node-set)
A node set is a set of nodes that match the criteria returned by a path. Other types of data cannot be converted to node sets.
Boolean Value (Boole
Detailed description of custom error types in Node. js and node. js
Preface
In general, few people will consider how to deal with the wrong policies generated by the application. In the debugging process, they simply useconsole.log(‘error')Locating errors is basically enough. By leaving this debugging information, we will be able to improve the maintainability an
Objective
The function of Dom is to turn a Web page into a JavaScript object, so that you can use JavaScript to do a variety of things (such as add and delete content). The browser parses the HTML document into a series of nodes based on the DOM model, and the nodes form a tree structure. The smallest constituent unit of the DOM is called node, and the tree structure of the document (the DOM tree) consists of 12
1. Mylist.clonenode (TRUE); In the case of true, deep replication is performed, that is, the copy node and its entire child node tree, including attributes2. Mylist.clonenode (FALSE); In the case of false arguments, perform a shallow copy, that is, copy only the node itself, including the propertiesThe CloneNode () method does not copy JavaScript attributes that
Other node typesRespect for the original: http://cn.cocos2d-x.org/tutorial/show?id=2497You are using sprites, tags, actions, and your game has made some progress. In addition to the basic node types described in the previous chapters, Cocos2d-x also provides more advanced node type
1) Node typeNodeName (what node) and nodevalue (always null)Node father and son can use ChildNodes to represent Firstchild,childnode[a],lastchildBrother Knot, you can use nextsibiling,previoussibling.At what point before inserting A.insertbefore (C,B);Node's replacement a.replacechild (C,B);Node removal A.remove (b)Clo
The elements on the page are nodes (node) with ELEMENT nodesnode), attribute nodes (Attribute node), text nodes, and so on. The definition of NodeType is as follows:Const unsigned short element_node = 1;Const unsigned short attribute_node = 2;Const unsigned short text_node = 3;Const unsigned short cdata_section_node = 4;Const unsigned short entity_reference_node = 5;Const unsigned Short entity_node = 6;Cons
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