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delegate keyword vs. lambda notation
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Even longer answer - there are fiddly reasons why they're convertible to different delegate types, too :)
– Jon Skeet
Nov 18 '08 at 19:33
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T-SQL Cast versus Convert
What is the general guidance on when you should use CAST versus CONVERT ? Is there any performance issues related to choosing one versus the other? Is one closer to ANSI-SQL?
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How to delete an element from an array in C#
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You can also convert your array to a list and call remove on the list. You can then convert back to your array.
int[] numbers = {1, 3, 4, 9, 2};
var numbersList = numbers.ToList();
numbersList.Remove(4);
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UnicodeDecodeError: 'utf8' codec can't decode byte 0xa5 in position 0: invalid start byte
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Set default encoder at the top of your code
import sys
reload(sys)
sys.setdefaultencoding("ISO-8859-1")
Returning null as an int permitted with ternary operator but not if statement
...terprets true ? null : 0 as an Integer expression, which can be implicitly converted to int, possibly giving NullPointerException.
For the second case, the expression null is of the special null type see, so the code return null makes type mismatch.
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Convert string date to timestamp in Python
How to convert a string in the format "%d/%m/%Y" to timestamp?
14 Answers
14
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How to convert String to Long in Kotlin?
So, due to lack of methods like Long.valueOf(String s) I am stuck.
11 Answers
11
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Scala: write string to file in one statement
... that from a Scala Iterable, i.e. pretty much any collection type, using a converter: import java.nio.file.{Files, Paths}; import scala.collection.JavaConverters.asJavaIterableConverter; val output = List("1", "2", "3"); Files.write(Paths.get("output.txt"), output.asJava)
– Yaw...
How to make the division of 2 ints produce a float instead of another int?
...and n and d have opposite signs.
This is why 1/2 does not give a float.
Converting just either one to float as in (float)1/2 suffices because 15.17. Multiplicative Operators says:
Binary numeric promotion is performed on the operands
and 5.6.2. Binary Numeric Promotion says:
If eithe...
Python argparse command line flags without arguments
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Here's a quick way to do it, won't require anything besides sys.. though functionality is limited:
flag = "--flag" in sys.argv[1:]
[1:] is in case if the full file name is --flag
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