javascript - Why sometimes jQuery selector returns something like "a.fn.init"? -


i don't know happen chrome browser, of sudden behavior of doing $('div#my') in console totally different before. 1 time i've experienced later somehow recovered, don't know how reproduce it, , today happened again.

please watch video:http://peaceevertvimg.org/jq.php.

in video $('div#my') in 2 different browsers:

the first browser not chrome believe uses chrome's kernel behavior expect, , because chrome not working expected have use demonstrate expection: when $('div#my)` see directly html tag, , can see tag's html content, "something" in case.

in contrast, in chrome browser, result different, when $('div#my') see object(n.fn.init), , can't see "something" immediately, of course inconvenient. before, pretty sure not this, behavior in first browser.

the simple webpage in video http://peaceevertvimg.org/jquery.php, can go test in chrome browser. , pretty sure of won't see result shown in video. happened chrome?(i've disabled expansions , updated latest version)

if open chrome's developer tools console given page , invoke $ should see

$(selector, [startnode]) { [command line api] }

if same thing on page has jquery loaded, you'll see

function (a,b){return new n.fn.init(a,b)}

evaluating $($0) going depend on context of page given above information. you'll either element reference or jquery object.


Comments

Post a Comment

Popular posts from this blog

asynchronous - C# WinSCP .NET assembly: How to upload multiple files asynchronously -

i using winscp .net assembly uploading files. want upload multiple files asynchronous way. have created method works single upload. public class uploadingdata { private sessionoptions _sessionoptions; private session _session; //connection etc private void onconnected() { foreach (var fileinfo in localfileslist) { var task = task.factory.startnew(() => uploadfilesasync(fileinfo)); } } private async task uploadfilesasync(string file) { string remotefilepath = _session.translatelocalpathtoremote(file, @"/", "/test_data_upload"); var uploading = _session.putfiles(file, remotefilepath, false); //when done await task.run(() => thread.sleep(1000)); } } please suggest me correct way. thanks you can use backgroundworker class this: string[] images = new string[50]; foreach (var path in images) { backgroundworker
Read more

aws api gateway - SerializationException in posting new Records via Dynamodb Proxy Service in API -

i getting "__type": "com.amazon.coral.service#serializationexception" as reply in postman & in test console in api gateway trying post record directly dynamodb using api proxy services.. referring aws article - https://aws.amazon.com/blogs/compute/using-amazon-api-gateway-as-a-proxy-for-dynamodb/ here's mapping { "tablename": "tablenamegoeshere", "item": { "id" : "$context.requestid" "eventname" : "$input.path('$.eventname')", "timestamp" : $input.path('$.timestamp'), "answers": "$util.parsejson($input.path('$.answers'))" } } update: did asked ... , worked if try add array of json objects gives me above same error - here's trying now. please - couldnt find on google well #set($inputroot = $input.path('$')) { "tablename": "answer", "item": {
Read more

asp.net - Problems sending emails from forum -

i have been redesigning site has message board, has been written guy looked after site. it has few problems , written in .asp , uses .mdb files database. you can see whole thing here . feel free post if helps, test thing have set using original files , new database. the basic problem when posts message, supposed email sent them, have posted it. when replies, originator supposed message, replier has been posted. i’d have thought @ point in process there should script/file in postmessage.asp? the postmessage.asp page below. <% option explicit %> <!-- #include virtual="common/adovbs.inc" --> <html> <head> <meta http-equiv="content-type" content="text/html; charset=windows-1252"> <meta name="generator" content="microsoft frontpage 4.0"> <meta name="progid" content="frontpage.editor.document"> <title>new page 2</title> <base target="_self"
Read more