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What is the difference between & and && in Java?
...s thought that && operator in Java is used for verifying whether both its boolean operands are true , and the & operator is used to do Bit-wise operations on two integer types.
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pretty-print JSON using JavaScript
...rinting is implemented natively in JSON.stringify(). The third argument enables pretty printing and sets the spacing to use:
var str = JSON.stringify(obj, null, 2); // spacing level = 2
If you need syntax highlighting, you might use some regex magic like so:
function syntaxHighlight(json) {
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How to clone a case class instance and change just one field in Scala?
...ople on different social networks. Instances of that class are fully immutable, and are held in immutable collections, to be eventually modified by an Akka actor.
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Searching for UUIDs in text with regex
I'm searching for UUIDs in blocks of text using a regex. Currently I'm relying on the assumption that all UUIDs will follow a patttern of 8-4-4-4-12 hexadecimal digits.
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filters on ng-model in an input
...t and I don't want to allow users to use spaces, and everything typed will be turned into lowercase.
8 Answers
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Base constructor in C# - Which gets called first? [duplicate]
Which gets called first - the base constructor or "other stuff here"?
13 Answers
13
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Get difference between 2 dates in JavaScript? [duplicate]
How do I get the difference between 2 dates in full days (I don't want any fractions of a day)
6 Answers
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Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
I've been profiling some of our core math on an Intel Core Duo, and while looking at various approaches to square root I've noticed something odd: using the SSE scalar operations, it is faster to take a reciprocal square root and multiply it to get the sqrt, than it is to use the native sqrt opcode!...
TypeError: unhashable type: 'dict'
This piece of code is giving me an error unhashable type: dict can anyone explain me what is the solution
2 Answers
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Fastest way to check if string contains only digits
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bool IsDigitsOnly(string str)
{
foreach (char c in str)
{
if (c < '0' || c > '9')
return false;
}
return true;
}
Will probably be the fastest way to do it.
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