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How can I check whether a radio button is selected with JavaScript?
...ng on the exact nature of your markup but that should be enough to get you started.
If you're just looking to see if any radio button is selected anywhere on the page, PrototypeJS makes it very easy.
Here's a function that will return true if at least one radio button is selected somewhere on th...
Get the current first responder without using a private API
...ons. This is a way of sending an arbitrary message to the responder chain (starting with the first responder), and continuing down the chain until someone responds to the message (has implemented a method matching the selector).
For the case of dismissing the keyboard, this is the most effective wa...
How to manage startActivityForResult on Android?
In my activity, I'm calling a second activity from the main activity by startActivityForResult . In my second activity, there are some methods that finish this activity (maybe without a result), however, just one of them returns a result.
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Is there a tool to convert JavaScript files to TypeScript [closed]
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Update: Tool is described in details in this post
ReSharper starting with version 9 (EAP builds available) has functionality to automatically convert JavaScript code into TypeScript. You can start with renaming .js file into .ts and see R# suggestions like this one:
Haven't tried i...
iOS Safari – How to disable overscroll but allow scrollable divs to scroll normally?
...so bubbling would not work if we used document instead.
$('body').on('touchstart', selScrollable, function(e) {
if (e.currentTarget.scrollTop === 0) {
e.currentTarget.scrollTop = 1;
} else if (e.currentTarget.scrollHeight === e.currentTarget.scrollTop + e.currentTarget.offsetHeight) {
e....
Merge PDF files
...e pages keyword argument of append and merge, passing a tuple in the form (start, stop[, step]) (like the regular range function).
e.g.
merger.append(pdf, pages=(0, 3)) # first 3 pages
merger.append(pdf, pages=(0, 6, 2)) # pages 1,3, 5
If you specify an invalid range you will get an IndexErro...
Backbone.js get and set nested object attribute
...se for when properties of models are instances of Backbone.Model, and then start doing magical event bubbling.
– Domenic
Jan 2 '13 at 4:38
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Using Git with an existing Xcode project
...he Source Control menu is grayed out.
Apparently, it's easy to do if you start a new project, but how do I import an existing project with snapshots and everything?
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Convert PDF to image with high resolution
...flag will likely give worse results on higher values if the quality of the starting image was lower than that.
– parvus
Oct 6 '16 at 8:48
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str.startswith with a list of strings to test for
...nd comparisons and simply use a list, but not sure how to use it with str.startswith :
2 Answers
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