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Having both a Created and Last Updated timestamp columns in MySQL 4.0
...ESTAMP and ON UPDATE CURRENT_TIMESTAMP clauses. In addition, these clauses now can be used with DATETIME column definitions. For more information, see Automatic Initialization and Updating for TIMESTAMP and DATETIME.
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C# DateTime.Now precision
I just ran into some unexpected behavior with DateTime.UtcNow while doing some unit tests. It appears that when you call DateTime.Now/UtcNow in rapid succession, it seems to give you back the same value for a longer-than-expected interval of time, rather than capturing more precise millisecond incre...
How to format a number as percentage in R?
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With usage, e.g.,
x <- c(-1, 0, 0.1, 0.555555, 1, 100)
percent(x)
(If you prefer, change the format from "f" to "g".)
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How do I move a redis database from one server to another?
...rver to a new cloud instance and use that instance as my new redis server. If it were MySQL, I would export the DB from the old server and import it into the new server. How should I do this with redis?
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Create a unique number with javascript time
... if you need the readable version, you're in for a bit of processing:
var now = new Date();
timestamp = now.getFullYear().toString(); // 2011
timestamp += (now.getMonth < 9 ? '0' : '') + now.getMonth().toString(); // JS months are 0-based, so +1 and pad with 0's
timestamp += ((now.getDate < ...
How to iterate over the keys and values with ng-repeat in AngularJS?
... It should work: plnkr.co/edit/7AQF6k7hf2aZbWFmhVoX?p=preview. Can you modify that until it stops working?
– Josh David Miller
Feb 28 '13 at 5:25
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How to format time since xxx e.g. “4 minutes ago” similar to Stack Exchange sites
... seconds";
}
var aDay = 24*60*60*1000;
console.log(timeSince(new Date(Date.now()-aDay)));
console.log(timeSince(new Date(Date.now()-aDay*2)));
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How can I handle R CMD check “no visible binding for global variable” notes when my ggplot2 syntax i
...ou should strive for 0 NOTES in your package when submitting to CRAN, even if you have to do something slightly hacky. This makes life easier for CRAN, and easier for you.
(Updated 2014-12-31 to reflect my latest thoughts on this)
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Python List vs. Array - when to use?
If you are creating a 1d array, you can implement it as a List, or else use the 'array' module in the standard library. I have always used Lists for 1d arrays.
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How might I find the largest number contained in a JavaScript array?
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Ah, but now it has the SO Sticker of Quality affixed to it in an only slightly-crooked fashion!
– Shog9
Sep 4 '09 at 14:26
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