http://www.youtube.com/user/kudvenkat...
Link for slides, code samples and text version of the video
http://csharp-video-tutorials.blogspo...
In this video we will discuss
1. What is $(document).ready(function() in jquery and when to use it
2. Difference between $(window).load and $(document).ready
$(document).ready is a jQuery event. It fires as soon as the DOM is loaded and ready to be manipulated by script. This is the earliest point in the page load process where the script can safely access elements in the page's html dom. This event is fired before all the images, css etc.. are fully loaded.
The following example works, because the jquery code that adds the event handler to the button is inside the ready() function, which ensures that the DOM is fully loaded before this piece of code is executed, so the JavaScript can find the button element in the DOM and adds the click event hanlder.
[html]
[head] [title][/title] [script src="Scripts/jquery-1.11.2.js"][/script] [script type="text/javascript"] $(document).ready(function () { $(' #button1').click(function () { alert('jQuery Tuorial'); }); }); [/script]
[/head]
[body] [input id="button1" type="button" value="Click Me" /]
[/body]
[/html]
In the following example, we have removed the ready() method. When you click the button now, you don't get the alert. This is because the jQuery code is present before the button element, so by the time the jQuery code is executed the button element is not loaded into DOM.
[html]
[head] [title][/title] [script src="Scripts/jquery-1.11.2.js"][/script] [script type="text/javascript"] $(' #button1').click(function () { alert('jQuery Tuorial'); }); [/script]
[/head]
[body] [input id="button1" type="button" value="Click Me" /]
[/body]
[/html]
To make this example work, you have 2 options
1. Place your jQuery code in $(document).ready function OR
2. Place your script at the bottom of the page just before the closing [/body] element
$(window).load event fires when the DOM and all the content on the page (images, css etc) is fully loaded. Since the window load event waits for images, css etc to be fully loaded, this event fires after ready event.
The following example proves the above point. When you run the page with the following script, notice that the alert in ready function is displayed before the alert in load function.
[script type="text/javascript"] $(window).load(function () { alert('Window loaded'); }); $(document).ready(function () { alert('DOM Loaded and ready'); });
[/script]
In most cases, the script can be run as soon as the DOM hierarchy has been fully constructed. So ready() is usually the best place to write your JavaScript code.
However, in your application there could be scenarios where you should be using $(window).load over $(document).ready. For example, let's say we want to display the actual image dimensions (Height and Width). To get the actual image dimensions, we will have to wait until the image is fully loded, so the jQuery code to get the height and width should be in $(window).load event.
Example : If you use $(document).ready() instead of $(window).load() the height and width will be displayed as 0.
[html]
[head] [title][/title] [script src="Scripts/jquery-1.11.2.js"][/script] [script type="text/javascript"] $(window).load(function (){ $(' #div1').html("Height = " + $(' #Image1').height() + "[br/]" + "Width = " + $(' #Image1').width()) }); [/script]
[/head]
[body] [div id="div1"][/div] [img src="Chrysanthemum.jpg" id="Image1" /]
[/body]
[/html]
asp.net core docker What is $document ready function in jquery | |
756 Likes | 756 Dislikes |
245,795 views views | 524K followers |
Education | Upload TimePublished on 18 Mar 2015 |
Related keywords
wcf vs web api,ado.net core,sql server management studio,webkinz,webadvisor,craigslist nj,wcf one piece,asp.net core 3,ajax players,weber grill parts,webtoon,tutorials by hugo,csharp corner,mvc design pattern,asp.net machine account,servers for minecraft,asp.net core dependency injection,ado.net tutorial,services angular,ajax ontario,asp.net mvc tutorial,asp.net cos'è,csharp assembly,tutorialspoint python,sql join,services briefcase,asp.net core web api,ajax jquery,wccftech,craigslist ny,asp.net zero,csharp foreach,server memes,sql date format,services online,chase,serverless architecture,server resume,wcf c#,server books,tutorialspoint javascript,mvcc connect,ado.net mysql,services technologies gps,ajax deadpool,server jobs,cvs,website,mvc tutorial,costco hours,wcf service application,tutorialspoint spring,serverless,wcf soap,jquery json tutorial for beginners,wcf cat,cool math games,wcf test client,services & training hse colombia sas,servicestack,citibank,asp.net core identity,sql union,ajax parking,sql database,asp.net core logging,mvconnect,cunyfirst,asp.net guida,wcf nba,csharp download,wcfi foundation,jquery tutorial for beginners youtube,csharp online,wcf authentication,tutorials near me,http://asp.net,server 2019,chernobyl,ado.net descargar,web of dreams,serverminer,ajax cleaner,ado.net visual studio 2019,webassign,ado.net vs entity framework,jquery tutorial for beginners in tamil,ado.net visual studio 2017,csharp list,sql like,asp.net mvc,asp.net core tutorial,sqlite,wcfm,jquery slider tutorial for beginners,ajax roster,jquery tutorial for beginners with examples step by step,mvc architecture,http://ado.net,asp.net core mvc,ajax soccer,server hosting,wcfi,jquery tutorial for beginners with examples pdf,jquery tutorial for beginners with examples step by step pdf,ajax dish soap,capital one,server rack,tutorialspoint html,csharp interface,craigslist,webroot,tutorialspoint reactjs,ajax request,wcf dragon ball,asp.net core 2.2,tutorialspoint python 3,sql developer,webster,services transmission company sas,sql group by,asp.net core signalr,services manager,mvc framework,ajax paving,mvc near me,tutorialspoint spring boot,mvc map,csharp online compiler,asp.net download,sql between,ado.net c# pdf,services tag dell,wcf 2019 nba,csharp switch,ado.net ventajas y desventajas,csharpstar,wcf tutorial,tutorialspoint,ajax meaning,csharp-video-tutorials.blogspot,tutorials dojo,central park 5,csharp string format,ado.net c#,asp.net core github,jquery tutorial for beginners kudvenkat,server status,ajax fc,server jobs nyc,asp.net core swagger,sql formatter,credit karma,services group,jquery tutorial for beginners full,server error in '/' application,services windows,asp.net core 3.0,sql injection,jquery tutorial for beginners – learn jquery,tutorialspoint c#,wcf ria services,calculator,ado.net entity data model,sql insert,tutorialspoint tableau,services google play apk,sqlyog,asp.net core 3 release date,sql server,server job description,tutorials by a,servicenow,webcam,mvc hours,webmd symptom,jquery ajax tutorial for beginners,csharp array,csharp enum,ajax call,asp.net core 2. guida completa per lo sviluppatore,asp.net core,server pro,server status ffxiv,cheap flights,webcrims,asp.net core hosting,services sas,jquery tutorial for beginners with examples free download,tutorialspoint java,tutorialspoint java compiler,webmd,csharp to json,college football,ado.net dataset,csharp dictionary,cnn,website builder,tutorialspoint sql,asp.net web api,server side rendering,weber grills,sql server 2017,tutorialspoint spark,mvc nj,ado.net oracle,asp.net core download,csharp to vb.net,jquery best tutorial for beginners,webster bank,webstaurant,tutorialsystems,ajax post,services fms publish announcement,services.msc no abre,ajax jersey,csharp operator,asp.net core razor pages,server duties,asp.net core environment variables,csharp random,jquery tutorial for beginners step by step,century 21,services consultores,services consulting,mvcsd,services.msc,mvcsc,ado.net pdf,asp.net core configuration,ajax marvel,jquery datatable tutorial for beginners,sql update,asp.net tutorial,mvc medical,ado.net entity data model visual studio 2019,wcfs international curriculum,mvc2,ado.net entity data model visual studio 2017,chase online,wcf api,costco,server jobs near me,webex,sql meaning,sql tutorial,sql commands,jquery validation tutorial for beginners with examples,jquery online tutorial for beginners,ado.net entity framework,ajax tavern,tutorialsteacher,ajax javascript,jquery tutorial for beginners pdf,jquery ajax tutorial for beginners with examples,services desk,ajax greek,csharp tutorial,mvc pattern,ado.net sql server,ado.net connection,asp.net identity,mvcu,asp.net core middleware,jquery tutorial for beginners in hindi,wcf web service,mvc webadvisor,web store,mvcc,webmail,mvci,mvctc,
Không có nhận xét nào:
Đăng nhận xét