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What is the Scala annotation to ensure a tail recursive function is optimized?
I think there is @tailrec annotation to ensure the compiler will optimize a tail recursive function. Do you just put it in front of the declaration? Does it also work if Scala is used in scripting mode (for instance using :load <file> under REPL)?
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What is the difference between .text, .value, and .value2?
What is the difference between .text , .value , and .value2 ? Such as when should target.text, target.value, and target.value2 be used?
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How to check if Receiver is registered in Android?
I need to check if my registered receiver is still registered if not how do i check it any methods?
18 Answers
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How to sort an array in Bash
...orted[@]}"
[3 5]
[a c]
[b]
[f]
Note: @sorontar has pointed out that care is required if elements contain wildcards such as * or ?:
The sorted=($(...)) part is using the "split and glob" operator. You should turn glob off: set -f or set -o noglob or shopt -op noglob or an element of the array l...
How to properly seed random number generator
I am trying to generate a random string in Go and here is the code I have written so far:
9 Answers
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How to quit android application programmatically
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Since API 16 you can use the finishAffinity method, which seems to be pretty close to closing all related activities by its name and Javadoc description:
this.finishAffinity();
Finish this activity as well as all activities immediately below it in the cur...
test if event handler is bound to an element in jQuery [duplicate]
Is it possible to determine whether an element has a click handler, or a change handler, or any kind of event handler bound to it using jQuery?
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Best GUI designer for eclipse? [closed]
I'm looking for a good GUI designer for swing in eclipse. My preference is for a free/open-source plugin.
12 Answers
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Can you remove elements from a std::list while iterating through it?
I've got code that looks like this:
13 Answers
13
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Get the real width and height of an image with JavaScript? (in Safari/Chrome)
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Webkit browsers set the height and width property after the image is loaded. Instead of using timeouts, I'd recommend using an image's onload event. Here's a quick example:
var img = $("img")[0]; // Get my img elem
var pic_real_width, pic_real_height;
$("<img/>") // Make in memory ...