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How can I get the count of milliseconds since midnight for the current?

... current time as a number of milliseconds (not count from epoch). Instant.now() // Get current moment in UTC, then… .get( ChronoField.MILLI_OF_SECOND ) // interrogate a `TemporalField`. 2017-04-25T03:01:14.113Z → 113 Get the fractional second in nan...
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How to change a nullable column to not nullable in a Rails migration?

I created a date column in a previous migration and set it to be nullable. Now I want to change it to be not nullable. How do I go about doing this assuming there are null rows in that database? I'm ok with setting those columns to Time.now if they're currently null. ...
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How to generate unique ID with node.js

...(); // -> '110ec58a-a0f2-4ac4-8393-c866d813b8d1' ** UPDATE 7.x And now the above usage is deprecated as well, so use this package like this: const { v1: uuidv1 } = require('uuid'); uuidv1(); // -> '6c84fb90-12c4-11e1-840d-7b25c5ee775a' const { v4: uuidv4 } = require('uuid'); uuidv4()...
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Prevent dialog dismissal on screen rotation in Android

... The best way to avoid this problem nowadays is by using a DialogFragment. Create a new class which extends DialogFragment. Override onCreateDialog and return your old Dialog or an AlertDialog. Then you can show it with DialogFragment.show(fragmentManager, ta...
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How do I run a shell script without using “sh” or “bash” commands?

... Hey thanks for your reply. I tried that out. Now I can run it without the "sh" command. But I still have to prefix the command with "./" which I don't want to. :) – Rameez Hussain Jan 8 '12 at 18:26 ...
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What is the standard way to add N seconds to datetime.time in Python?

....timedelta(seconds=secs) return fulldate.time() a = datetime.datetime.now().time() b = addSecs(a, 300) print(a) print(b) This outputs: 09:11:55.775695 09:16:55 share | improve this answer...
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Fundamental difference between Hashing and Encryption algorithms

...tates from all these iterations back together to form the resultant hash. Now, if you wanted to decode the hash, you'd first need to figure out how to split the given hash into its iterated states (1 possibility for inputs smaller than the size of a chunk of data, many for larger inputs). Then you...
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Python timedelta in years

...e date. Currently I've got timedelta from datetime module and I don't know how to convert it to years. 16 Answers ...
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How to install the Raspberry Pi cross compiler on my Linux host machine?

...arm-linux-gnueabihf-raspbian/bin to the end of the file named ~/.bashrc Now you can either log out and log back in (i.e. restart your terminal session), or run . ~/.bashrc in your terminal to pick up the PATH addition in your current terminal session. Now, verify that you can access the compiler...
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Datetime equal or greater than today in MySQL

... SELECT * FROM myTable WHERE DATE(myDate) = DATE(NOW()) Read more: http://www.tomjepson.co.uk/tutorials/36/mysql-select-where-date-today.html share | improve this answe...