I really like the format of the _ids generated by mongodb. Mostly because I can pull data like the date out of them client side. I’m planning to use another database but still want that type of _id for my document. How can I create these ids without using mongodb? Thanks! Answer Object IDs are usually g…
Tag: javascript
How to define setter/getter on prototype
EDIT Oct 2016: Please note this question was asked in 2012. Every month or so someone adds a new answer or comment that refutes an answer, but doesn’t really make sense to do so as the question is probably out of date (remember, it was for Gnome Javascript to write gnome-shell extensions, not browser st…
how to get youtube video id from url
I am trying to check whether a url is a valid youtube video URL and get the youtube video ID from it, so far I am using a simple javascript split function in order to achieve this, however this has some minor disadvantages as youtube has multiple URL’s. I have been viewing other stackoverflow threads ho…
Sending websocket ping/pong frame from browser
I keep reading about ping/pong messages in websockets to keep the connection alive, but I’m not sure what they are. Is it a distinct frame type? (I don’t see any methods on a javascript WebSocket object in chrome related to ping-pong). Or is it just a design pattern (e.g. I literally send “p…
setInterval(function(),time) change time on runtime
I want to change setInterval function time when my code is running. I try this First SetInterval does not work! Answer You’re clearing the interval on the next line, so the first one wont work, as it gets cleared right away : Also, as gdoron says, setting a interval of nothing isn’t really valid, …
Scrolling text which is too long with jquery
I am trying to create a music player/centre online. I have a player that plays the music and displays the current track: As you can see from th title of the song it is too long for the div. What i would like to do is scroll the text and reset it an rescroll etc. I have attempted this with
Does dojo TabContainer have an event thats triggered when changing tabs?
does DOJO TabContainer have an event thats triggered when changing tabs? I imagine it would but I couldn’t find anything about it in the documentation. 🙁 SOLVED: It looks like I found a solution here: Dijit TabContainer Events – onFocus not the most searchable topic title :/ Answer Connect aspect.…
javascript get element’s tag
Lets say this is my HTML: I would like to be able to determine what tag belongs to a html element. Example element with id “foo” = div, “goo” = input, “boo” = span … So something like this: Answer HTMLElement.tagName NOTE: It returns tags in capitals. E.g. <img /&g…
How to preserve whitespace in dynamically added javascript DOM element without using CSS?
When adding in text with small whitespace appended to it for alignment purposes the whitespace is trimmed off (the whitespace is added in c# so by the time it gets to front end Javascript it cannot be edited – it would be nice to just use some CSS to do this but it is not an option). Here is what
Is there any way to load css and javascript from a string?
I’ve seen many examples of loading CSS and javascript dynamically from a file. Here’s a good example. But is there a way to load CSS or javascript as a string? For example, something like: Or something of that nature. Answer This will load the JavaScript from a string, but be warned that this is h…