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How to check if my string is equal to null?
...erform some action ONLY IF my string has a meaningful value. So, I tried this.
27 Answers
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AngularJS ui-router login authentication
... these services into a usable module, but here's what I've come up with. This is a complex process to work around some caveats, so hang in there. You'll need to break this down into several pieces.
Take a look at this plunk.
First, you need a service to store the user's identity. I call this princ...
Get top 1 row of each group
...)
SELECT *
FROM cte
WHERE rn = 1
If you expect 2 entries per day, then this will arbitrarily pick one. To get both entries for a day, use DENSE_RANK instead
As for normalised or not, it depends if you want to:
maintain status in 2 places
preserve status history
...
As it stands, you preserve ...
How to prettyprint a JSON file?
I have a JSON file that is a mess that I want to prettyprint. What's the easiest way to do this in Python?
12 Answers
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Why is lazy evaluation useful?
I have long been wondering why lazy evaluation is useful. I have yet to have anyone explain to me in a way that makes sense; mostly it ends up boiling down to "trust me".
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Indenting #defines
...d to always be placed in the first column.
Pre-ANSI C compilers are non-existent these days. Use which ever style (space before "#" or space between "#" and the identifier) you prefer.
http://www.delorie.com/gnu/docs/gcc/cpp_48.html
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In C# what is the difference between ToUpper() and ToUpperInvariant()?
In C#, what is the difference between ToUpper() and ToUpperInvariant() ?
6 Answers
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Difference between Fact table and Dimension table?
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This is to answer the part:
I was trying to understand whether dimension tables can be fact table
as well or not?
The short answer (INMO) is No.That is because the 2 types of tables are created for different reasons. H...
Using CSS to affect div style inside iframe
Is it possible to change styles of a div that resides inside an iframe on the page using CSS only?
13 Answers
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How to detect a textbox's content has changed
...generate letters, like the arrow keys. I thought of two methods of doing this using the keyup event:
15 Answers
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