Home > Developer > Web Develop

"Summarize" JSON data request simplified version of Understanding (the results of the Brother Kee)

Source: Internet
Author: User
Developer on Alibaba Coud: Build your first app with APIs, SDKs, and tutorials on the Alibaba Cloud. Read more ＞

Create a new. txt file under the homologous JS directory

{"  News": [    {"title": "Audit Management", "Time": "2018-03-10 21:00"},    {"title": "Menu Management", "Time": "2018-03-10 21:00"},    {"title": "Order Management", "Time": "2018-03-10 21:00"},    {"title": "Contract Management", "Time": "2018-03-10 21:00"},    {"title": "Logistics Management", "Time": "2018-03-10 21:00"},    {"title": "Administration", "Time": "2018-03-10 21:00"},    {"title": "Personnel Management", "Time": "2018-03-10 21:00"},    {"title": "Shopping Management", "Time": " 2018-03-10 21:00 "},    {" title ":" Wholesale Management "," Time ":" 2018-03-10 21:00 "},    {" title ":" Security Management "," Time ":" 2018-03-10 21:00 "},    {" title ":" Account Management "," Time ":" 2018-03-10 21:00 "},    {" title ":" Financial Management "," Time ":" 2018-03-10 21:00 "},    {"title": "Other Management", "Time": "2018-03-10 21:00"}  ]}
<!DOCTYPE HTML><HTML>    <Head>        <MetaCharSet= "Utf-8" />        <title>News</title>        <Linkrel= "stylesheet"href= "Css/index.css" />        <Scriptsrc= "Js/jquery.js"></Script>        <Script>$ (document). Ready (function(){                  varresult=$.ajax ({URL:"./newsdata.txt", Async:false, DataType:"JSON"                  }); Result=$.parsejson (result.responsetext);//convert to JSON format                  varNews=result.news; varHtmlobj= "';  for(varI=0; I<News.length;i++){    //Loop Build ListHtmlobj+= '<li class= "NewsItem" >'+News[i].title+'<span>'+News[i].time+'</span></li>'; }                  $('. Newslist'). HTML (htmlobj); //Replace the content in the HTML            }); </Script>    </Head>    <Body>        <H2>News</H2>        <ulclass= "Newslist">                    </ul>    </Body></HTML>

JS only single thread

Synchronization: Wait for the interface data to return and then go down one line to execute

Async: Put this request in the first place, go down.

JS single-threaded, one line down execution (synchronous), but if the interface is requested, the interface will delay the return of data,

This time if asynchronous, you can avoid waiting too long, directly execute the following code

But when he executes the following code, what does it take to get the data?

So, there's the callback function.

The callback function is what you do after you request the data asynchronously.

You can write in the callback function what you're going to do when you get the data.

"Summarize" JSON data request simplified version of Understanding (the results of the Brother Kee)

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
wordpress the field understanding 23andme results version of opposite of request example of json string json array of objects json representation of map

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

What's Trending
Top 10 Tags
datastax versions naming convention zookeeper client class definition md5 microsoft sql server 2005 data structures exception handling error handling
Top 10 Keywords
microsoft download center down wordpress address url site address url wordpress address url windows installer 4 0 download 302 not found web address url definition site address url wordpress db2 integer mac os installation step by step pdf abbreviation for return

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

  • Sales Support

    1 on 1 presale consultation

    Chat Contact Sales

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    Open a Ticket

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

    Learn More