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Difference between Rebuild and Clean + Build in Visual Studio
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Except Rebuild cleans and the rebuilds each project one by one. Clean+Build cleans all of them and then builds all of them. Makes difference mostly if you click it by accident :)
– Eugene
Aug 8 '09 at 3:35
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Sort a text file by line length including spaces
...g to rebuild the whole of $0 (based on the separator, etc) when you change one field. I guess it's not crazy behaviour. It has this:
"Finally, there are times when it is convenient to force awk to rebuild the entire record, using the current value of the fields and OFS. To do this, use the seemin...
How do you echo a 4-digit Unicode character in Bash?
I'd like to add the Unicode skull and crossbones to my shell prompt (specifically the 'SKULL AND CROSSBONES' (U+2620)), but I can't figure out the magic incantation to make echo spit it, or any other, 4-digit Unicode character. Two-digit one's are easy. For example, echo -e "\x55", .
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Safe String to BigDecimal conversion
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String value = "1,000,000,000.999999999999999";
BigDecimal money = new BigDecimal(value.replaceAll(",", ""));
System.out.println(money);
Full code to prove that no NumberFormatException is thrown:
import java.math.BigDecimal;
public class Tester {
public static void main(Str...
How to create relationships in MySQL
In class, we are all 'studying' databases, and everyone is using Access. Bored with this, I am trying to do what the rest of the class is doing, but with raw SQL commands with MySQL instead of using Access.
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How to indent a few lines in Markdown markup?
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One way to do it is to use bullet points, which allows you specify multiple levels of indentation. Bullet points are inserted using multiples of two spaces, star, another space Eg.:
this is a normal line of text
* this is ...
SQL WHERE ID IN (id1, id2, …, idn)
...SQL engine doesn't immediately know that you want to check if the value is one of the values in a fixed list. However, a good SQL engine could optimize it to have equal performance like with IN. There's still the readability issue though...
Option 3 is simply horrible performance-wise. It sends a qu...
Why can't decimal numbers be represented exactly in binary?
...l maximum size of an array. This is an entirely separate point to the main one of this answer, however. Even if you had a genuinely arbitrarily large number of bits to play with, you still couldn't represent decimal 0.1 exactly in a floating binary point representation. Compare that with the other w...
indexOf method in an object array?
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I think you can solve it in one line using the map function:
pos = myArray.map(function(e) { return e.hello; }).indexOf('stevie');
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improve th...
A migration to add unique constraint to a combination of columns
...fme.com, "There are 46,427 people named John Smith" in the United States alone. That's about 127 years of days. As this is well over the average lifespan of a human being, this means that a DOB clash is mathematically certain.
All I'm saying is that that particular combination of unique fields cou...