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Node.js app can't run on port 80 even though there's no other process blocking the port
...ions to run applications on that port. On Linux systems, any port below 1024 requires root access.
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How do I assign a port mapping to an existing Docker container?
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Why does range(start, end) not include end?
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Because it's more common to call range(0, 10) which returns [0,1,2,3,4,5,6,7,8,9] which contains 10 elements which equals len(range(0, 10)). Remember that programmers prefer 0-based indexing.
Also, consider the following common code snippet:
for i in range(len(li)):
pass
Could you see ...
How can I override Bootstrap CSS styles?
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DeveloperDan
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answered Dec 30 '14 at 11:13
smugglerFlynnsmu...
How can I escape white space in a bash loop list?
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I think -exec [name] {} + is a GNU and 4.4-BSD extension. (At least, it doesn't appear on Solaris 8, and I don't think it was in AIX 4.3 either.) I guess the rest of us may be stuck with piping to xargs...
– Michael Ratanapintha
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Android Spinner: Get the selected item change event
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znqznq
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Git - Undo pushed commits
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814
You can revert individual commits with:
git revert <commit_hash>
This will create a new...
Postgresql: password authentication failed for user “postgres”
I have installed PostgreSQL 8.4, Postgres client and Pgadmin 3. Authentication failed for user "postgres" for both console client and Pgadmin. I have typed user as "postgres" and password "postgres", because it worked before. But now authentication is failed. I did it before a couple of times withou...
What is middleware exactly?
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Lets say your company makes 4 different products, your client has another 3 different products from another 3 different companies.
Someday the client thought, why don't we integrate all our systems into one huge system. Ten minutes later their IT depar...
Check existence of directory and create if doesn't exist
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410
Use showWarnings = FALSE:
dir.create(file.path(mainDir, subDir), showWarnings = FALSE)
setwd(...