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C# List of objects, how do I get the sum of a property

... for(int i = 0; i < f; ++i) { p[i] = i % 2; } var time = DateTime.Now; p.Sum(); Console.WriteLine(DateTime.Now - time); int x = 0; time = DateTime.Now; foreach(var item in p){ x += item; } Console.WriteLine(DateTime.Now - time); x = 0; time = DateTime.Now; for(int i = 0, j = f; i < ...
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AngularJS: Service vs provider vs factory

... Why do I get Unknown provider: helloWorldProvider <- helloWorld when running this locally? Commenting it out, same error for the other 2 examples. Is there some hidden provider configuration ? (Angular 1.0.8) -- Found: stackoverflow.com/q...
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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. share ...
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How to convert date to timestamp?

...Script/Reference/Global_Objects/…. I just forgot to put away the string. Now it works. – antonjs Mar 26 '12 at 13:52 ...
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ISO time (ISO 8601) in Python

... Local to ISO 8601: import datetime datetime.datetime.now().isoformat() >>> 2020-03-20T14:28:23.382748 UTC to ISO 8601: import datetime datetime.datetime.utcnow().isoformat() >>> 2020-03-20T01:30:08.180856 Local to ISO 8601 without microsecond: import d...
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postgresql return 0 if returned value is null

... AND u_kbalikepartnumbers_id = 1000307 AND ( EXTRACT( DAY FROM ( NOW() - dateEnded ) ) ) * 24 < 48 AND COALESCE( price, 0 ) > ( SELECT AVG( COALESCE( price, 0 ) )* 0.50 FROM ( SELECT *, cume_dist() OVER ( ORDER BY price DESC ) ...
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Inserting a Python datetime.datetime object into MySQL

... the TypeError because you need quotes around the datecolumn value. Try: now = datetime.datetime(2009, 5, 5) cursor.execute("INSERT INTO table (name, id, datecolumn) VALUES (%s, %s, '%s')", ("name", 4, now)) With regards to the format, I had success with the above command (which ...
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How to detect shake event with android?

... { if (sensor != SensorManager.SENSOR_ACCELEROMETER) return; long now = System.currentTimeMillis(); if ((now - mLastForce) > SHAKE_TIMEOUT) { mShakeCount = 0; } if ((now - mLastTime) > TIME_THRESHOLD) { long diff = now - mLastTime; float speed = Math.ab...
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Python loop that also accesses previous and next values

... Solutions until now only deal with lists, and most are copying the list. In my experience a lot of times that isn't possible. Also, they don't deal with the fact that you can have repeated elements in the list. The title of your question s...
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How do I turn a python datetime into a string, with readable format date?

...t;from datetime import datetime >>>"{:%B %d, %Y}".format(datetime.now()) The formatting characters used here are the same as those used by strftime. Don't miss the leading : in the format specifier. Using format() instead of strftime() in most cases can make the code more readable, easi...