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Using unset vs. setting a variable to empty
...g to test the variable.
I will add that my preferred way of testing if it is set is:
[[ -n $var ]] # True if the length of $var is non-zero
or
[[ -z $var ]] # True if zero length
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Proper Linq where clauses
...it's applying the first predicate to all items first and the result (which is narrowed down at this point) is used for the second predicate and so on. The results get narrowed down every pass but still it involves multiple passes.
Also the chaining (first method) will work only if you are ANDing yo...
How to send email from Terminal?
...l
Eg:
mail -s "hello" "example@example.com" <<EOF
hello
world
EOF
This will send an email to example@example.com with the subject hello and the message
Hello
World
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How to programmatically close a JFrame
...t the GUI to behave as if you clicked the X close button then you need to dispatch a window closing event to the Window. The ExitAction from Closing An Application allows you to add this functionality to a menu item or any component that uses Actions easily.
frame.dispatchEvent(new WindowEvent(fram...
Retrieve filename from file descriptor in C
Is it possible to get the filename of a file descriptor (Linux) in C?
7 Answers
7
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Convert a bitmap into a byte array
Using C#, is there a better way to convert a Windows Bitmap to a byte[] than saving to a temporary file and reading the result using a FileStream ?
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What is the purpose of global.asax in asp.net
How can we use global.asax in asp.net? And what is that?
6 Answers
6
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Uncaught ReferenceError: jQuery is not defined [duplicate]
...carousel.min.js"></script>
appears to be a jQuery plugin, which is likely generating an error since jQuery hasn't been loaded on the page yet.
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Positive Number to Negative Number in JavaScript?
... => Always negative
You do realize however, that for your code
if($this.find('.pdxslide-activeSlide').index() < slideNum-1){ slideNum = -slideNum }
console.log(slideNum)
If the index found is 3 and slideNum is 3,
then 3 < 3-1 => false
so slideNum remains positive??
It looks more li...
Programmatically change UITextField Keyboard type
Is it possible to programmatically change the keyboard type of a uitextfield so that something like this would be possible:
...