When one is typing slowly “a” & “b” the above code will result in “a”, “b” in the console log. But the problem is when somebody does it quickly. The result then is “ab”, “ab”. It’s easier to repeat this situation with letters wh…
Tag: jquery
Calling a method from an event handler
I have this code I am working on but every time I call init method I keep getting an error: this.addElement is not a function Is it because I can’t call methods from event handlers? Answer You should read this book, JavaScript: the Good Parts and visit the Crockenator’s web site here, crockford.co…
How to upload string as file with jQuery or other js framework
Using javascript, I have a file in string (got with ajax request). How to upload it as file to server by another ajax request ? Answer You need to set the Content-type request header to multipart/form-data and play around with the format a little, I wrote this in Plain Ol’ JavaScript ™ but you cou…
jQuery Youtube URL Validation with regex
I know there is plenty of question answered over here https://stackoverflow.com/questions/tagged/youtube+regex, but not able find a question similar to me. Any body has the JavaScript Regular expression for validating the YouTube VIDEO URL’s line below listed. Just want to know where such a URL can be p…
Asynchronous Controller is blocking requests in ASP.NET MVC through jQuery
I have just started using the AsyncController in my project to take care of some long-running reports. Seemed ideal at the time since I could kick off the report and then perform a few other actions while waiting for it to come back and populate elements on the screen. My controller looks a bit like this. I t…
Limiting the number of characters in a ContentEditable div
I am using contenteditable div elements in my web application and I am trying to come up with a solution to limit the amount of characters allowed in the area, and once the limit is hit, attempting to enter characters simply does nothing. This is what I have so far: This does limit the number of characters to…
Using jQuery to gather all text nodes from a wrapped set, separated by spaces
I’m looking for a way to gather all of the text in a jQuery wrapped set, but I need to create spaces between sibling nodes that have no text nodes between them. For example, consider this HTML: If I simply use jQuery’s text() method to gather the text content of the <div>, like such: that pr…
jQuery find not working
This is my HTML: And javascript: Doesn’t seem to do anything (read_more is set to display: none) any ideas? Answer Try this: $(document).ready(function(){ $(‘a.more’).click(function(){ $(this).parent().next().find(‘.read_more’).slideDown(); return false; }); }); Update: Here is t…
How can I determine if a variable is ‘undefined’ or ‘null’?
How do I determine if variable is undefined or null? My code is as follows: But if I do this, the JavaScript interpreter halts execution. Answer You can use the qualities of the abstract equality operator to do this: Because null == undefined is true, the above code will catch both null and undefined.
How can I tell when changes to jquery html() have finished?
I’m using jQuery to change the HTML of a tag, and the new HTML can be a very long string. $(“#divToChange”).html(newHTML); I then want to select elements created in the new HTML, but if I put the code immediately following the above line it seems to create a race condition with a long string…