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Why {} + {} is NaN only on the client side? Why not in Node.js?
While [] + [] is an empty string, [] + {} is "[object Object]" , and {} + [] is 0 . Why is {} + {} NaN?
1 Answer
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What is the 'dynamic' type in C# 4.0 used for?
...= foo / 2.5; // Does not compile
foo = Math.Sqrt(foo); // Does not compile
string bar = foo.ToString("c");
The second line does not compile because 2.5 is typed as a double and line 3 does not compile because Math.Sqrt expects a double. Obviously, all you have to do is cast and/or change your vari...
Why does an NSInteger variable have to be cast to long when used as a format argument?
...NSLog statements, which are just debugging aids after all, but also for [NSString stringWithFormat:] and the various derived messages, which are legitimate elements of production code.
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When to use actors instead of messaging solutions such as WebSphere MQ or Tibco Rendezvous?
... @Ignore
public void itShouldStoreAMessage() throws Exception{
String amqUrl = "nio://localhost:61616";
Camel camel = (Camel) CamelExtension.apply(system);
camel.context().addComponent("activemq", ActiveMQComponent.activeMQComponent(amqUrl));
TestProbe probe = Te...
How to write a UTF-8 file with Java?
...(
new FileOutputStream("outfilename"), "UTF-8"));
try {
out.write(aString);
} finally {
out.close();
}
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seek() function?
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For strings, forget about using WHENCE: use f.seek(0) to position at beginning of file and f.seek(len(f)+1) to position at the end of file. Use open(file, "r+") to read/write anywhere in a file. If you use "a+" you'll only be ab...
How can I merge two hashes without overwritten duplicate keys in Ruby?
...es that we can't judge from the question - what if the values in hash1 are strings and hash2 are integers? For some cases that might be a viable option, but more often it would cause problems- the suggestion of using lists for values works around this quite cleanly.
– glenatron...
Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
...eversed bits of v; first get LSB of v
int s = sizeof(v) * CHAR_BIT - 1; // extra shift needed at end
for (v >>= 1; v; v >>= 1)
{
r <<= 1;
r |= v & 1;
s--;
}
r <<= s; // shift when v's highest bits are zero
Faster (32-bit processor)
unsigned char b = x;
b = ((...
How to get a URL parameter in Express?
...e. For named route "parameters" (e.g. /p/:tagId) use req.params. For query strings (e.g. /p?tagId=5) use req.query.
– Nateowami
Jun 19 '15 at 8:18
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What is the default form HTTP method?
...e of its form owner’s action attribute, if it has one, or else the empty string. <...> If action is the empty string, let action be the document’s URL of the form document.
enctype: "The missing value default for the enctype attribute is... the application/x-www-form-urlencoded state."
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