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What is recursion and when should I use it?
One of the topics that seems to come up regularly on mailing lists and online discussions is the merits (or lack thereof) of doing a Computer Science Degree. An argument that seems to come up time and again for the negative party is that they have been coding for some number of years and they have n...
How do I drop a function if it already exists?
I know this must be simple, but how do I preface the creation of a function with a check to see if it already exists? If it exists, I want to drop and re-create it.
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Executing injected by innerHTML after AJAX call
...nal file and create a script tag when you get your Ajax response. You then set the src attribute of your script tag and voila, it loads and executes the external script.
This other StackOverflow post may also be helpful to you: Can scripts be inserted with innerHTML?.
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C# Thread safe fast(est) counter
...keep track of the number of midpoint values, a variable, midpointCount, is set equal to 0 and incremented each time the random number generator returns a midpoint value until it reaches 10,000. Because three threads generate the random numbers, the Increment(Int32) method is called to ensure that mu...
Why would finding a type's initializer throw a NullReferenceException?
...8d45012c 85c9 test ecx,ecx
000007fe`8d45012e 0f94c0 sete al
000007fe`8d450131 0fb6c8 movzx ecx,al
000007fe`8d450134 894c2430 mov dword ptr [rsp+30h],ecx
000007fe`8d450138 488d542430 lea rdx,[rsp+30h]
000007fe`8d45013d 488d0d24224958 lea r...
rails - Devise - Handling - devise_error_messages
in my user edit page, there is a line as follows:
21 Answers
21
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Java: How to set Precision for double value? [duplicate]
I was working with numbers recently and I had a situation where I want to set the precision of a double value say to 6 digits or 4 digits, depending on the value stored in the database.
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Difference between wait and sleep
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
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What is the difference between encrypting and signing in asymmetric encryption?
What is the difference between encrypting some data vs signing some data (using RSA)?
11 Answers
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Git: “Not currently on any branch.” Is there an easy way to get back on a branch, while keeping the
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If you have not committed:
git stash
git checkout some-branch
git stash pop
If you have committed and have not changed anything since:
git log --oneline -n1 # this will give you the SHA
git checkout some-branch
git merge $...