JavaScript

I want to traverse the JSON object tree, but why can't I find any library. It seems to be not difficult, but it feels like reinventing the wheel.There are many tutorials in XML that show how to traverse the XML DOM Tree: (Workaround 1:If you think

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Recently read the book "Write Maintainable JavaScript," in order to deepen memory, simply make a note, but also let not read the students have a general understanding.First, the programming styleThe program is written for people to read, so the

JavaScript Event List commentary on JavaScript event listEvent Browser Support CommentaryGeneral event onclick IE3, N2 trigger this event when mouse clicksOnDblClick IE4, N4 triggers this event when the mouse double-clicksOnMouseDown IE4, N4

There are two very important features in the Javasciprt event: event bubbling and the target element.When an event on an element is triggered, such as a mouse click on a button, the same event will be triggered in all ancestor elements of that

Closure of this thing, the Internet has a lot of information. The individual saw a lot, or smattering. There is no theoretical introduction here, and 2 examples are given directly.Code Listing 1: recording the number of times a function was

First of all, the JavaScript syntax is very flexible, the price of flexibility is easy to lead to irregular coding and a variety of unexpected running results. ECMAScript 5 introduces the strict mode (strict mode), and in the future we'd better

web How to export a page to an Excel document web page Export to Excel document method column Header 1 column Header 2 column Header 3 column Header 4 column Header 5aaabbbcccdddeeeAAABBBCCCDDDEEEFFFGGGHHHIIIJJJ---The following are the processing

Recently reading "JavaScript Advanced Programming", it is forgotten to read the content, it is intended to do some reading notes in the form of a blog. Today is about four ways to define objects in JavaScript, in addition to these four methods,

JavaScript Event List CommentaryEvent Browser Support CommentaryGeneral event onclick IE3, N2 trigger this event when mouse clicksOnDblClick IE4, N4 triggers this event when the mouse double-clicksOnMouseDown IE4, N4 triggers this event when the

The requirements for JavaScript developers in the IT community are still high, but if JavaScript developers have the skills and experience to reach a certain level, they can easily jump to a good company, and of course the salary is not a problem.

Feature detection rather than browser detectionBecause a browser does not support a particular feature, it is often our practice to make browser judgments directly in the code such as: Huangmei County Primary School 1 if(Broswer.

Java has a lot of empty pointers to the problem, it is necessary to do the prevention and judgment, if not, the console appears annoying anomalies, let people confidence has been hit, early writing procedures when there is no experience, can not

Ajax JSON cross-origin request service (WebApi, WCF or other)The program works normally under a single IIS. When you switch to a domain name (Server Load balancer), various cross-domains are enabled. As long as the following conditions are met, a

Datatable converts the data into Json and puts the Json data into the js file. 5 code instances in C # converting Datatable to Json ////// Datatable to Json //////Datatable object/// Json string Public static string ToJson (DataTable dt)

CSS + DIV + JQuery video summary I have learned CSS and DIV in niujiao, CSS + JS encapsulation in JS, And I have reviewed it again here. It also serves as an example to check for missing content, it's a more systematic review. The core content of

Node. js sends streaming data to the clientIf the data on a requested page is large or a data stream that takes some time to complete, it is better to send the completed data to the client in the form of a stream. In express, the general practice is

When loading the list, jquery gets the first li attribute in ul, jqueryul When the list is loaded, the first one is selected by default. ID of ul for top_menu You can use $ ("# top_menu li: first") to obtain the first li tag under ul. Then you can

Use CSS to vertically center the content in N ., CssIt is no stranger to use css + div to horizontally center the page content. How can we vertically center the content? OK. Next we will go to the topic. It is better to use the idea we often use

Five front-end development tools worth trying and five front-end development tools In the past few years, many brand-new Web applications have emerged. However, as the functions of applications become increasingly rich, the complexity of front-end