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What does “Changes not staged for commit” mean
...made since the last commit. For example, let's say you have file a, file b and file c. You modify file a and file b but the changes are very different in nature and you don't want all of them to be in one single commit. You issue
git add a
git commit a -m "bugfix, in a"
git add b
git commit b -m "n...
Sort points in clockwise order?
...e other.
Using it you can construct a less-than relation to compare points and determine the order in which they should appear in the sorted array. But you have to define where is the beginning of that order, I mean what angle will be the starting one (e.g. the positive half of x-axis).
The code fo...
'and' (boolean) vs '&' (bitwise) - Why difference in behavior with lists vs numpy arrays?
What explains the difference in behavior of boolean and bitwise operations on lists vs NumPy arrays?
8 Answers
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conditional unique constraint
...onstraint like this. The difference is, you'll return false if Status = 1 and Count > 0.
http://msdn.microsoft.com/en-us/library/ms188258.aspx
CREATE TABLE CheckConstraint
(
Id TINYINT,
Name VARCHAR(50),
RecordStatus TINYINT
)
GO
CREATE FUNCTION CheckActiveCount(
@Id INT
) RETURNS INT...
Java 7 language features with Android
Just wondering if anyone has tried using new Java 7 language features with Android?
I know that Android reads the bytecode that Java spits out and turns it to dex. So I guess my question is can it understand the bytecode of Java 7?
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Write a function that returns the longest palindrome in a given string
...ng Manacher's Algorithm in O(n) time! Its implementation can be found here and here.
For input String s = "HYTBCABADEFGHABCDEDCBAGHTFYW1234567887654321ZWETYGDE" it finds the correct output which is 1234567887654321.
share
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CASCADE DELETE just once
... with the ON DELETE CASCADE rule. Is there any way I can perform a delete and tell Postgresql to cascade it just this once? Something equivalent to
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What is a loop invariant?
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@Tomas Petricek - when the loop terminates, i = 10 and j = -1; so the weaker invariant example you gave may not be correct (?)
– Raja
Apr 7 '12 at 22:47
7
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Does return stop a loop?
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Yes, return stops execution and exits the function. return always** exits its function immediately, with no further execution if it's inside a for loop.
It is easily verified for yourself:
function returnMe() {
for (var i = 0; i < 2; i++) {
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What does .SD stand for in data.table in R
...ks useful but I do not really know what I am doing with it. What does it stand for? Why is there a preceding period (full stop). What is happening when I use it?
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