I’ve the following sample html, there is a DIV which has 100% width. It contains some elements. While performing windows re-sizing, the inner elements may be re-positioned, and the dimension of the div may change. I’m asking if it is possible to hook the div’s dimension change event? and How…
Tag: javascript
regex replace just the last charater of a string
This should be an easy one and I couldn’t find it anywhere. How do I replace just the last character of a string with a char from an array? Answer $ matches the end of a string, . matches any character But you should probably use string functions for this:
Redirecting child iframe to relative url, using js within iframe – but url is relative to the parent
Some interesting behavior that I didn’t expect. I have a page which contains an iframe, and in that iframe there’s a javascript function that redirects its own window. I call the iframe’s js function from the parent frame. My expected behavior is that it will redirect the iframe to a new pag…
Why does this regex replace remove a symbol at the start, but not at the end?
I am trying to remove the apostrophes from this string: “‘234324234234234236548723adf83287942′”. I am trying to use this: to try and get “234324234234234236548723adf83287942”. But I can’t seem to crack it. How do I remove the apostrophes (‘)? Answer Just use ‘ o…
Getting timestamp from mongodb id
How do I get the timestamp from the MongoDB id? Answer The timestamp is contained in the first 4 bytes of a mongoDB id (see: http://www.mongodb.org/display/DOCS/Object+IDs). So your timestamp is: and
How to capture the text of an Select option?
So I have this: How would I go about grabbing the ‘text’ of the options here? The problem is, it needs to be ‘dynamic’, in the sense I need the text for the currently selected option… I know a manual, static way of getting the text… That will grab “This is You”&…
Track mouse speed with JS
What’s the best way to track the mouse speed with plain JS/JQuery? I’d like to track how fast a user moves the mouse in all directions (up/down/left/right). Answer Sparklines has a nifty example of tracking mouse movement and graphing it. Their code is available in the source of their site startin…
document.getElementByID is not a function
I’m learning jQuery and was following a tutorial, a very strange error has perplexed me. Here’s my html : and The jQuery : When I add elements By hitting the return key, there’s no problem. But When I click the Submit Button then firebug shows this error I tried to use jQuery instead replaci…
Unlimited arguments in a JavaScript function
Can a JavaScript function take unlimited arguments? Something like this: I am trying: But this doesn’t work (output is only the first argument). Or the only way is: Thanks Answer There’s a weird “magic” variable you can reference called “arguments”: It’s like an array…
Backbone View events not firing
I am using Rails3 as my backend and Jammit to asset… Now I am trying to not compress and even package the assets. The simple event don’t get run, but the alert(‘asd’) int initialize is working as expected. I have already tried other kinds of events in other objects too, but it didnR…