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Undoing a 'git push'

...s the phrase [remote rejected]. In this scenario, you will have to delete and recreate the branch. git push origin :alpha-0.3.0 git push origin cc4b63bebb6:refs/heads/alpha-0.3.0 If this doesn't work - perhaps because you have receive.denyDeletes set, then you have to have direct access to the r...
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Case preserving substitute in Vim

... We do not deserve Tim Pope. – Andrew Keeton May 23 '19 at 19:47 1 This plu...
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Why use softmax as opposed to standard normalization?

... There is one nice attribute of Softmax as compared with standard normalisation. It react to low stimulation (think blurry image) of your neural net with rather uniform distribution and to high stimulation (ie. large numbers, think crisp image) with probabilities close to 0 and 1. ...
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Putting an if-elif-else statement on one line?

...itting everything on one line would most likely violate PEP-8 where it is mandated that lines should not exceed 80 characters in length. It's also against the Zen of Python: "Readability counts". (Type import this at the Python prompt to read the whole thing). You can use a ternary expression in P...
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Efficiently test if a port is open on Linux?

...mp;6 I'm using 6 as the file descriptor because 0,1,2 are stdin, stdout, and stderr. 5 is sometimes used by Bash for child processes, so 3,4,6,7,8, and 9 should be safe. As per the comment below, to test for listening on a local server in a script: exec 6<>/dev/tcp/127.0.0.1/445 || echo "N...
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Pandas: drop a level from a multi-level column index?

... If the index you are trying to drop is on the left (row) side and not the top (column) side, you can change "columns" to "index" and use the same method: >>> df.index = df.index.droplevel(1) – Idodo Nov 28 '18 at 12:13 ...
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Can you use CSS to mirror/flip text?

...orm: scale(-1, 1); -ms-transform: scale(-1, 1); transform: scale(-1, 1); And a vertical flip would involve scaling the div like this: -moz-transform: scale(1, -1); -webkit-transform: scale(1, -1); -o-transform: scale(1, -1); -ms-transform: scale(1, -1); transform: scale(1, -1); DEMO: spa...
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What's the use of do while(0) when we define a macro? [duplicate]

I'm reading the linux kernel and I found many macros like this: 2 Answers 2 ...
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Can I specify multiple users for myself in .gitconfig?

... You can manually edit those config files with git config --edit and git config --global --edit. And in case you missed Abizern’s comment, a repository’s config file is at <repo-root>/.git/config. – Rory O'Kane Apr 25 '12 at 20:01 ...
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CSS transition effect makes image blurry / moves image 1px, in Chrome?

...ecially the image-rendering CSS property. For best practice accessibility and SEO wise you could replace the background image with an <img> tag using object-fit CSS property. Original answer Try this in your CSS: .your-class-name { /* ... */ -webkit-backface-visibility: hidden; ...