Locked. There are disputes about this answer’s content being resolved at this time. It is not currently accepting new interactions. You can’t parse [X]HTML with regex. Because HTML can’t be parsed by regex. Regex is not a tool that can be used to correctly parse HTML. As I have answered in HTML-and-regex questions here so … Read more
In the simplest terms, git pull does a git fetch followed by a git merge. git fetch updates your remote-tracking branches under refs/remotes/<remote>/. This operation is safe to run at any time since it never changes any of your local branches under refs/heads. git pull brings a local branch up-to-date with its remote version, while … Read more
The correct way to avoid SQL injection attacks, no matter which database you use, is to separate the data from SQL, so that data stays data and will never be interpreted as commands by the SQL parser. It is possible to create an SQL statement with correctly formatted data parts, but if you don’t fully … Read more
Executive Summary $ git push -d <remote_name> <branchname> $ git branch -d <branchname> Note: In most cases, <remote_name> will be origin. Delete Local Branch To delete the local branch use one of the following: $ git branch -d <branch_name> $ git branch -D <branch_name> The -d option is an alias for –delete, which only deletes … Read more
→ For a more general explanation of asynchronous behaviour with different examples, see Why is my variable unaltered after I modify it inside of a function? – Asynchronous code reference → If you already understand the problem, skip to the possible solutions below. The problem The A in Ajax stands for asynchronous. That means sending … Read more
Undo a commit & redo $ git commit -m “Something terribly misguided” # (0: Your Accident) $ git reset HEAD~ # (1) [ edit files as necessary ] # (2) $ git add . # (3) $ git commit -c ORIG_HEAD # (4) git reset is the command responsible for the undo. It will undo … Read more
There are two overarching types of variables in Java: Primitives: variables that contain data. If you want to manipulate the data in a primitive variable you can manipulate that variable directly. By convention primitive types start with a lowercase letter. For example variables of type int or char are primitives. References: variables that contain the … Read more
You are a victim of branch prediction fail. What is Branch Prediction? Consider a railroad junction: Image by Mecanismo, via Wikimedia Commons. Used under the CC-By-SA 3.0 license. Now for the sake of argument, suppose this is back in the 1800s – before long-distance or radio communication. You are the operator of a junction and … Read more
Basically, a minimal reproducible example (MRE) should enable others to exactly reproduce your issue on their machines. Please do not post images of your data, code, or console output! tl;dr A MRE consists of the following items: a minimal dataset, necessary to demonstrate the problem the minimal runnable code necessary to reproduce the issue, which … Read more