How can I detect if a variable is a string? Answer This is the way specified in the ECMAScript spec to determine the internal [[Class]] property. From 8.6.2 Object Internal Properties and Methods: The value of the [[Class]] internal property is defined by this specification for every kind of built-in object. …
Tag: jquery
How to disable scrolling temporarily?
I’m using the scrollTo jQuery plugin and would like to know if it is somehow possible to temporarily disable scrolling on the window element through Javascript? The reason I’d like to disable scrolling is that when you scroll while scrollTo is animating, it gets really ugly 😉 Of course, I could do…
How to change value of object which is inside an array using JavaScript or jQuery?
The code below comes from jQuery UI Autocomplete: For example, I want to change the desc value of jquery-ui. How can I do that? Additionally, is there a faster way to get the data? I mean give the object a name to fetch its data, just like the object inside an array? So it would be something like jquery-ui.jq…
How do I remove tinyMCE and then re-add it?
I am trying to add the tinyMCE editor to my page, remove it, then add it again but am getting errors. When I run Part A, then Part B, Than Part A again I get the error: Part A Part B Edit: Below is the full JavaScript function. The first time through it opens the dialog and works, the contents
How to check if the URL contains a given string?
How could I do something like this: Answer You need add href property and check indexOf instead of contains
set option “selected” attribute from dynamic created option
I have a dynamically created select option using a javascript function. the select object is when the js function is executed, the “country” object is and displaying “Indonesia” as default selected option. note : there is no selected=”selected” attribute in that option. the…
Download a file by jQuery.Ajax
I have a Struts2 action in the server side for file downloading. However when I call the action using the jQuery: in Firebug I see the data is retrieved with the Binary stream. I wonder how to open the file downloading window with which the user can save the file locally? Answer 2019 modern browsers update Th…
Converting a native js event object to jQuery event object
I want to convert a native JavaScript event object to jQuery event object. Actually this is the problem: I have bound an event handler to documents keyup event via jQuery and there are some text boxes on the page with which a keyup event handler is bound via inline JavaScript. The problem is when the text box…
How to print selected div instead complete page
I have two divs: div1 and div2. Maintaining the original css styles applied to the div2 element being printed. I don’t want to print content inside div1 but only the inside of div2. How to print? Answer Try this
Validation of file extension before uploading file
I am uploading images to a servlet. The validation whether the uploaded file is an image is done in server side only, by checking the magic numbers in the file header. Is there any way to validate the extensions in client side before submitting the form to servlet? As soon as I hit enter it starts uploading. …