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Fastest hash for non-cryptographic uses?
...its respectively 160 bits). But if you just want to check whether a stored string is corrupted, you'll be fine with CRC32.
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Function overloading in Javascript - Best practices
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I often do this:
C#:
public string CatStrings(string p1) {return p1;}
public string CatStrings(string p1, int p2) {return p1+p2.ToString();}
public string CatStrings(string p1, int p2, bool p3) {return p1+p2.ToString()+p3.ToStr...
Sorting an ArrayList of objects using a custom sorting order
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public class Contact implements Comparable<Contact> {
private String name;
private String phone;
private Address address;
public int compareTo(Contact other) {
return name.compareTo(other.name);
}
// Add/generate getters/setters and other boilerplate.
}
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python exception message capturing
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repr(e) gives you the exception(and the message string); str(e) only gives the message string.
– whitebeard
Jul 30 '16 at 11:28
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How do you create optional arguments in php?
... a null check. Literals include arrays (array() or []), booleans, numbers, strings, and null.
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Who sets response content-type in Spring MVC (@ResponseBody)
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Simple declaration of the StringHttpMessageConverter bean is not enough, you need to inject it into AnnotationMethodHandlerAdapter:
<bean class = "org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property ...
Removing App ID from Developer Connection
...ortal area? I mistakenly added a couple of app id's under the wrong login and would like to remove them, but I am not seeing a way to do so.
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How can I repeat a character in Bash?
...e me notice a behaviour of Bash's printf: it continues to apply the format string until there are no arguments left. I had assumed it processed the format string only once!
– Jeenu
Jan 8 '15 at 10:25
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COUNT(*) vs. COUNT(1) vs. COUNT(pk): which is better? [duplicate]
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Bottom Line
Use either COUNT(field) or COUNT(*), and stick with it consistently, and if your database allows COUNT(tableHere) or COUNT(tableHere.*), use that.
In short, don't use COUNT(1) for anything. It's a one-trick pony, which rarely does what you want, and in those ...
What does Ruby have that Python doesn't, and vice versa?
...e up with one here just to explain what I mean.
Reverse the words in this string:
sentence = "backwards is sentence This"
When you think about how you would do it, you'd do the following:
Split the sentence up into words
Reverse the words
Re-join the words back into a string
In Ruby, you'd ...