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Insert Update trigger how to determine if insert or update
I need to write an Insert, Update Trigger on table A which will delete all rows from table B whose one column (say Desc) has values like the value inserted/updated in the table A's column (say Col1). How would I go around writing it so that I can handle both Update and Insert cases. How would I dete...
How can I process each letter of text using Javascript?
... Note that both the spread operator (first example) and the split call (last example) will create a new array. This won't usually be a problem, but could be costly for large strings or frequent uses.
– Randolpho
Feb 21 '19 at 16:02
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Java - removing first character of a string
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Its important to note that this doesn't actually remove the character from the string -- it gives you a new string that has all the characters of the old string except the first one. There's no way to actually modify a string.
– Chris Dodd
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Do you use NULL or 0 (zero) for pointers in C++?
...ded. That's less common these days.
If you have to name the null pointer, call it nullptr; that's what it's called in C++11. Then, nullptr will be a keyword.
That said, don't sweat the small stuff.
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Rails select helper - Default selected value, how?
... edited Jul 23 '16 at 4:13
installero
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answered Mar 12 '10 at 17:10
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Placing border inside of div and not on its edge
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this does not allow styling individual border-sides, and in this case many would probably be happy with using the property outline.
– Lorenz Lo Sauer
Aug 10 '15 at 8:05
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load and execute order of scripts
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If you aren't dynamically loading scripts or marking them as defer or async, then scripts are loaded in the order encountered in the page. It doesn't matter whether it's an external script or an inline script - they are executed in the order the...
Showing a different background colour in Vim past 80 characters
... Mono 11 font and the molokai color scheme. You can find my vim config and all of my dotfiles on GitHub.
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Using IQueryable with Linq
...t;T>. Say, for example, you have a Products table, and you want to get all of the products whose cost is >$25.
If you do:
IEnumerable<Product> products = myORM.GetProducts();
var productsOver25 = products.Where(p => p.Cost >= 25.00);
What happens here, is the database loads ...
How do you convert Html to plain text?
...ward if you don't have to worry about things like <script> tags. If all you need to do is display the text without the tags you can accomplish that with a regular expression:
<[^>]*>
If you do have to worry about <script> tags and the like then you'll need something a bit mo...