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Create a string with n characters
... a specified character? In my case, I would need to create a string with 10 spaces. My current code is:
27 Answers
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Get a CSS value with JavaScript
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Josh Schultz
7571010 silver badges2929 bronze badges
answered Jun 14 '11 at 1:40
alexalex
420k1...
How to get the last character of a string in a shell?
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101
That's one of the reasons why you need to quote your variables:
echo "${str:$i:1}"
Otherwise, ...
How do I unit test web api action method when it returns IHttpActionResult?
...returns: NotFound()
IHttpActionResult actionResult = valuesController.Get(10);
Assert.IsType<NotFoundResult>(actionResult);
// if your action returns: Ok()
actionResult = valuesController.Get(11);
Assert.IsType<OkResult>(actionResult);
// if your action was returning data in the body l...
Imitating a blink tag with CSS3 animations
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The original Netscape <blink> had an 80% duty cycle. This comes pretty close, although the real <blink> only affects text:
.blink {
animation: blink-animation 1s steps(5, start) infinite;
-webkit-animation: blink-animation 1s steps(5, start) infi...
Remove columns from dataframe where ALL values are NA
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160
Try this:
df <- df[,colSums(is.na(df))<nrow(df)]
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JavaScript: location.href to open in new window/tab?
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alexalex
420k184184 gold badges818818 silver badges948948 bronze badges
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How can I scan barcodes on iOS?
...ial C++ port of the core library. The port is a little old, from circa the 0.9 release of the Java code, but should still work reasonably well.
If you need to scan other formats, like 1D formats, you could continue the port of the Java code within this project to C++.
EDIT: Barcodes and the iphone...
Java ArrayList how to add elements at the beginning
... beginning of the array (so it has the lowest index) and if the array has 10 elements adding a new results in deleting the oldest element (the one with the highest index).
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How to sign an android apk file
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smac89
22.6k1010 gold badges7272 silver badges106106 bronze badges
answered Jan 31 '11 at 16:02
NanneNanne
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