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What does [].forEach.call() do in JavaScript?
...ke its first argument and replace this inside of the regular function with whatever you passed call, as the first argument (undefined or null will use window in everyday JS, or will be whatever you passed, if in "strict-mode"). The rest of the arguments will be passed to the original function.
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What is a tracking branch?
...es
Checking out a local branch from a remote branch automatically creates what is called a tracking branch. Tracking branches are local branches that have a direct relationship to a remote branch. If you’re on a tracking branch and type git push, Git automatically knows which server and branch to...
Should I put #! (shebang) in Python scripts, and what form should it take?
Should I put the shebang in my Python scripts? In what form?
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Interview questions: WPF Developer [closed]
What should every WPF developer know?
20 Answers
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how can I see what ports mongo is listening on from mongo shell?
If I have a mongo instance running, how can I check what port numbers it is listening on from the shell? I thought that db.serverStatus() would do it but I don't see it. I see this
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In Eclipse, what can cause Package Explorer “red-x” error-icon when all Java sources compile without
... Right click in the Problems tab area and choose "Delete"--that's what I needed to hear!
– Gabriel Staples
Jan 17 '19 at 6:44
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Differences in boolean operators: & vs && and | vs ||
I know the rules for && and || but what are & and | ? Please explain these to me with an example.
11 Ans...
What is the meaning and difference between subject, user and principal?
...t implies object. Without an object, there is no subject.
Principals are what subjects resolve to. When you present your credit card you are the subject and the account number is the principal. In other contexts your user ID or state-issued identification is your principal. But principals can b...
“loop:” in Java code. What is this, and why does it compile?
...rl: http://www.myserver.com/myfile.mp3
downLoad(url);
Would you all know what this code is (apart from awful)?
Solution: two labels, url and http, a comment www.myserver.com/myfile.mp3 and a method call with a parameter that has the same name (url) as the label. Yup, this compiles (if you define ...
What does [:] mean?
I'm analyzing some Python code and I don't know what
6 Answers
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