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What are database normal forms and can you give examples? [closed]
...ho came up with the idea of relational databases - things relying on keys, etc., so he would be the authority to go by in the case of relational databases.
– Smashery
Aug 12 '10 at 2:48
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How often should you use git-gc?
...pository is used. With one user checking in once a day and a branch/merge/etc operation once a week you probably don't need to run it more than once a year.
With several dozen developers working on several dozen projects each checking in 2-3 times a day, you might want to run it nightly.
It won't...
Using try vs if in python
...xpected never to be empty (but might be, if, for instance, a disk crashed, etc), the second approach makes sense. If, on the other hand, an empty result is perfectly reasonable under normal conditions, testing for it with an if statement makes more sense.
I had in mind the (more common) scenario:
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Why does Oracle 9i treat an empty string as NULL?
...answer exists but is not known by the user, data where there is no answer, etc. all of which constitute some sense of NULL).
By the time that the SQL standard came around and agreed that NULL and the empty string were distinct entities, there were already Oracle users that had code that assumed the...
How to link to specific line number on github
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You can you use permalinks to include code snippets in issues, PRs, etc.
References:
https://help.github.com/en/articles/creating-a-permanent-link-to-a-code-snippet
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What is the non-jQuery equivalent of '$(document).ready()'?
...or after sub-resources have finished loading (images, stylesheets, frames, etc).
function domReady(fn) {
// If we're early to the party
document.addEventListener("DOMContentLoaded", fn);
// If late; I mean on time.
if (document.readyState === "interactive" || document.readyState ===...
How to play audio?
...n the list (presumably you are keeping track either in the DOM, JS memory, etc). developer.mozilla.org/en-US/docs/Web/Events/ended
– Sgnl
Jan 25 '18 at 2:21
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JavaScript open in a new window, not tab
...w window. This is simply the fact to put extra parameter (location, status etc.... it doesn't matter)
– Peter
Nov 28 '15 at 11:28
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Abstract Class vs Interface in C++ [duplicate]
...an abstract class that initializes OpenGL, sets up the window environment, etc. and then you can derive from this class and implement custom code for e.g. the rendering process and handling user input:
// Abstract class for an OpenGL app.
// Creates rendering window, initializes OpenGL;
// client ...
How do I resolve git saying “Commit your changes or stash them before you can merge”?
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So it'll apply your current branch on top of the upstream branch after fetching.
This is equivalent to: checkout master, fetch and rebase origin/master git commands.
This is a potentially dangerous mode of operation. It rewrites history, which does not bode well when you published that histo...