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Format a datetime into a string with milliseconds
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agree with @cabbi, there's no need to convert back and forth with string and int
– caoanan
May 21 '18 at 3:15
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IEnumerable to string [duplicate]
...re, but I have now and am surprised that I can't find a really easy way to convert an IEnumerable<char> to a string .
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What's the best way to get the last element of an array without deleting it?
...st a day, so if I need to do it again I will probably write something that converts the output of all 210 docker executions to a table automatically :-)
– Paul van Leeuwen
Sep 29 '18 at 20:07
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How to Sort a List by a property in the object
...and should be much more efficient than creating a new IEnumerable and then converting it to a new list.
– Jonathan Wood
Dec 30 '15 at 17:11
51
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Why must a lambda expression be cast when supplied as a plain Delegate parameter
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A lambda expression can either be converted to a delegate type or an expression tree - but it has to know which delegate type. Just knowing the signature isn't enough. For instance, suppose I have:
public delegate void Action1();
public delegate void Action2...
What is the difference between NULL, '\0' and 0?
...ion of this type, cast to type void * is a null pointer constant, which if converted to a pointer becomes a null pointer. It is guaranteed by the standard to compare unequal to any pointer to any object or function.
NULL is a macro, defined in as a null pointer constant.
\0 is a construction used...
How do you get a timestamp in JavaScript?
... the timestamp in milliseconds:
new Date().getTime()
Which you can then convert to seconds like this:
Math.round(new Date().getTime()/1000)
And you can also use the valueOf method which we showed above:
new Date().valueOf()
Timestamp in Milliseconds
var timeStampInMs = window.performan...
How can I get a count of the total number of digits in a number?
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Without converting to a string you could try:
Math.Ceiling(Math.Log10(n));
Correction following ysap's comment:
Math.Floor(Math.Log10(n) + 1);
share
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How do I get the key at a specific index from a Dictionary in Swift?
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Doesn't work... 'NSDictionary' is not convertible to '_ArrayBuffer<T>'
– Chris
Mar 7 '15 at 19:12
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Comparing two byte arrays in .NET
...able fluff into your own application's code base:
// byte[] is implicitly convertible to ReadOnlySpan<byte>
static bool ByteArrayCompare(ReadOnlySpan<byte> a1, ReadOnlySpan<byte> a2)
{
return a1.SequenceEqual(a2);
}
The (guts of the) implementation as of .NET Core 3.1.0 can ...