If I understood it right you are doing an XMLHttpRequest to a different domain than your page is on. So the browser is blocking it as it usually allows a request in the same origin for security reasons. You need to do something different when you want to do a cross-domain request. A tutorial about how to … Read more
You get the error because order[1] is undefined. That error message means that somewhere in your code, an attempt is being made to access a property with some name (here it’s “push”), but instead of an object, the base for the reference is actually undefined. Thus, to find the problem, you’d look for code that … Read more
When you perform an DOM query through jQuery like $(‘class-name’) it actively searched the DOM for that element and returns that element with all the jQuery prototype methods attached. When you’re within the jQuery chain or event you don’t have to rerun the DOM query you can use the context $(this). Like so: $(this) will … Read more
That error can only be caused by one of three things: Your JavaScript file is not being properly loaded into your page You have a botched version of jQuery. This could happen because someone edited the core file, or a plugin may have overwritten the $ variable. You have JavaScript running before the page is … Read more
I need to create a “Back” button, so for that I used: It works fine when I run it locally, but when I deploy it to the server when I click on the button I get a message on the browser: Confirm Form ResubmissionThis webpage requires data that you entered earlier in order to be … Read more
Here’s your example in the “one” line. Update: I thought I’d update this post since it still gets quite a bit of traffic. In the comments below there’s some discussion about $(“<div>”) vs $(“<div></div>”) vs $(document.createElement(‘div’)) as a way of creating new elements, and which is “best”. I put together a small benchmark, and here … Read more
This worked for me: Where isAgeSelected is the id of the control. Also, @karim79’s answer works fine. I am not sure what I missed at the time I tested it. Note, this is answer uses Microsoft Ajax, not jQuery
Yip: Or remove them all first: If a class name is included as a parameter, then only that class will be removed from the set of matched elements. If no class names are specified in the parameter, all classes will be removed.
The default conversion from an object to string is “[object Object]”. As you are dealing with jQuery objects, you might want to do to print the element’s ID. As mentioned in the comments, you should use the tools included in browsers like Firefox or Chrome to introspect objects by doing console.log(whichIsVisible()) instead of alert. Sidenote: … Read more
This question already has answers here: Uncaught ReferenceError: $ is not defined? (40 answers) Closed 5 years ago. I have implemented some JavaScript on my site but I keep getting the following error messages: Uncaught ReferenceError: jQuery is not defined and Uncaught SyntaxError: Unexpected token < This is the JavaScript that I am using in … Read more