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Elegant method to generate array of random dates within two dates
I have a datepicker where I show two months and I want to randomly choose 3 dates in each visible month
4 Answers
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How do you add swap to an EC2 instance?
...his problem is to add swap (i.e. paging) space to the instance.
Paging works by creating an area on your hard drive and using it for extra memory, this memory is much slower than normal memory however much more of it is available.
To add this extra space to your instance you type:
sudo /bin/dd if...
Excel: last character/string match in a string
...acter/string's last occurrence in a string. Search and find both work left-to-right so I can't think how to apply without lengthy recursive algorithm. And this solution now seems obsolete.
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How to get index using LINQ? [duplicate]
Given a datasource like that:
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How to get current moment in ISO 8601 format with date, hour, and minute?
...get ISO 8601 formatted presentation of current moment, UTC? It should look like: 2010-10-12T08:50Z .
22 Answers
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MongoDB not equal to
I'm trying to display a query in MongoDB where a text field is not '' (blank)
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List of strings to one string
...is because the Join method was written for that purpose. In fact if you look at Reflector, you'll see that unsafe code was used to really optimize it. The other two also WORK, but I think the Join function was written for this purpose, and I would guess, the most efficient. I could be wrong though.....
Difference between Key, Primary Key, Unique Key and Index in MySQL
When should I use KEY , PRIMARY KEY , UNIQUE KEY and INDEX ?
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How to impose maxlength on textArea in HTML using JavaScript
I would like to have some functionality by which if I write
15 Answers
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What is the difference between single and double quotes in SQL?
...ally aren't used in SQL, but that can vary from database to database.
Stick to using single quotes.
That's the primary use anyway. You can use single quotes for a column alias — where you want the column name you reference in your application code to be something other than what the column is a...