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What are database normal forms and can you give examples? [closed]
...es |
IT103 | 2009-2 | 120 | 242 | Mrs Smith |
Now hopefully it should be obvious that TeacherName is dependent on TeacherID - so this is not in 3NF. To fix this, we do much the same as we did in 2NF - take the TeacherName field out of this table, and put it in its own, w...
Storing Objects in HTML5 localStorage
...ort for "num = parseFloat(localStorage.num);"
//Dates:
var date = Date.now();
localStorage.date = date;
date = new Date(parseInt(localStorage.date));
//Regular expressions:
var regex = /^No\.[\d]*$/i; //usage example: "No.42".match(regex);
localStorage.regex = regex;
var ...
Efficiently replace all accented characters in a string?
...not like about this (or you may, I guess it depends) is that the regex can now be modified outside of the function's body. So, someone could do this to modify the interally-used regex:
makeSortString.translate_re = /[a-z]/g;
So, there is that option.
One way to get a closure, and thus prevent so...
How do I prevent Android taking a screenshot when my app goes to the background?
...., apps using the media projection APIs).
UPDATE: it also secures against Now On Tap or other assistants on Android 6.0; they will not get access to the details of widgets and containers in your UI if the user brings up the assistant.
UPDATE #2: however, not everything in the activity will be prot...
Why do you use typedef when declaring an enum in C++?
I haven't written any C++ in years and now I'm trying to get back into it. I then ran across this and thought about giving up:
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Set a default parameter value for a JavaScript function
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I know it's really minor, but I don't like how you are assigning a = a and b = b when those parameters are not undefined. Also, that ternary operator with a bit complicated condition may be hard to read for future maintainers. I...
Why should I use Google's CDN for jQuery?
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Good to know, Aaron. Thanks.
– Lance Fisher
Feb 1 '10 at 23:33
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Ignore mapping one property with Automapper
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I know this goes beyond the initial question but I really like this answer, its clean, very easy to read and instantly understand plus easy to reuse
– Lski
Dec 3 '14 at 16:15
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Java: is there a map function?
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@SeanPatrickFloyd now that Java 8 is out, want to update this with an example involving lambdas? Like Collections2.transform(input -> Integer.toHexString(intput.intValue())
– Daniel Lubarov
Apr 4 '14 a...
How to sum a variable by group
... soon for example, since some data.table users have 250GB of RAM and GNU R now supports length > 2^31.
– Matt Dowle
Sep 9 '13 at 10:05
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