大约有 42,000 项符合查询结果（耗时：0.0417秒） [XML]
How are strings passed in .NET?
When I pass a string to a function, is a pointer to the string's contents passed, or is the entire string passed to the function on the stack like a struct would be?
...
Elements order in a “for (… in …)” loop
Does the "for…in" loop in Javascript loop through the hashtables/elements in the order they are declared? Is there a browser which doesn't do it in order?
The object I wish to use will be declared once and will never be modified.
...
GitHub relative link in Markdown file
Is there a way to create a URL anchor, <a> , link from within a Markdown file, to another file within the same repository and branch (aka a link relative to the current branch)?
...
How to find a Java Memory Leak
How do you find a memory leak in Java (using, for example, JHat)? I have tried to load the heap dump up in JHat to take a basic look. However, I do not understand how I am supposed to be able to find the root reference ( ref ) or whatever it is called. Basically, I can tell that there are several hu...
What is the difference between linear regression and logistic regression?
When we have to predict the value of a categorical (or discrete) outcome we use logistic regression . I believe we use linear regression to also predict the value of an outcome given the input values.
...
Non-static variable cannot be referenced from a static context
...
12 Answers
12
Active
...
PHP validation/regex for URL
I've been looking for a simple regex for URLs, does anybody have one handy that works well? I didn't find one with the zend framework validation classes and have seen several implementations.
...
How do I create a crontab through a script
I need to add a cron job thru a script I run to set up a server. I am currently using Ubuntu. I can use crontab -e but that will open an editor to edit the current crontab. I want to do this programmatically.
...
How do I remove a submodule?
How do I remove a Git submodule?
30 Answers
30
...
Get all unique values in a JavaScript array (remove duplicates)
I have an array of numbers that I need to make sure are unique. I found the code snippet below on the internet and it works great until the array has a zero in it. I found this other script here on Stack Overflow that looks almost exactly like it, but it doesn't fail.
...