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File Upload without Form
... IMHO this is the best solution, however another choice is to use an <iframe inside you can do a regular post back
– John Smith
Nov 12 '14 at 16:41
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Annotating text on individual facet in ggplot2
...p + geom_text(data = ann_text,label = "Text")
It should work without specifying the factor variable completely, but will probably throw some warnings:
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Real world use cases of bitwise operators [closed]
...te is defined by several "yes or no" properties. ACLs are a good example; if you have let's say 4 discrete permissions (read, write, execute, change policy), it's better to store this in 1 byte rather than waste 4. These can be mapped to enumeration types in many languages for added convenience.
C...
Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
.../y - 1/x^2) but they will be equally complicated.
Let's look at 1/sqrt(y) now. You can try f(x) = x^2 - 1/y, but it will be equally complicated: dx = 2xy / (y*x^2 - 1) for instance.
One non-obvious alternate choice for f(x) is: f(x) = y - 1/x^2
Then: dx = -f/f' = (y - 1/x^2) / (2/x^3) = 1/2 * x * ...
Print string to text file
...)
text_file.write("Purchase Amount: %s" % TotalAmount)
text_file.close()
If you use a context manager, the file is closed automatically for you
with open("Output.txt", "w") as text_file:
text_file.write("Purchase Amount: %s" % TotalAmount)
If you're using Python2.6 or higher, it's preferred...
How to check if bootstrap modal is open, so i can use jquery validate
i need to make a validation only if a modal is open, because if i open it, and then i close it, and the i press the button that opens the modal it doesn't work because it is making the jquery validation, but not showing because the modal was dismissed.
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SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”. error
...gt;
<version>1.5.6</version>
</dependency>
Let me know if error is still not resolved
I also recomend you to see this link
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Get/pick an image from Android's built-in Gallery app programmatically
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// this is the action code we use in our intent,
// this way we know we're looking at the response from our own action
private static final int SELECT_PICTURE = 1;
private String selectedImagePath;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(saved...
Error handling in C code
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I like the error as return-value way. If you're designing the api and you want to make use of your library as painless as possible think about these additions:
store all possible error-states in one typedef'ed enum and use it in your lib. Don't just return ints...
Remove non-utf8 characters from string
...sses all this issues. It´s called Encoding::toUTF8().
You dont need to know what the encoding of your strings is. It can be Latin1 (ISO8859-1), Windows-1252 or UTF8, or the string can have a mix of them. Encoding::toUTF8() will convert everything to UTF8.
I did it because a service was giving m...