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Creation timestamp and last update timestamp with Hibernate and MySQL

... Im my case removing nullable=false from @Column(name = "create_date" , nullable=false) worked – Shantaram Tupe Nov 22 '17 at 10:14 ...
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ViewPager and fragments — what's the right way to store fragment's state?

...r.instantiateItem(View, int) and save a reference to the fragment returned from the super call before returning it (it has the logic to find the fragment, if already present). For a fuller picture, have a look at some of the source of FragmentPagerAdapter (short) and ViewPager (long). ...
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How to send an email from JavaScript

...lso Thunderbird which have the firefox gecko engine: it can open web pages from hyperlinks in e-mails as new tabs. – user2284570 Nov 9 '13 at 20:02 11 ...
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Check if string ends with one of the strings from a list

... Take an extension from the file and see if it is in the set of extensions: >>> import os >>> extensions = set(['.mp3','.avi']) >>> file_name = 'test.mp3' >>> extension = os.path.splitext(file_name)[1] >&...
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Sending websocket ping/pong frame from browser

... Ping is meant to be sent only from server to client, and browser should answer as soon as possible with Pong OpCode, automatically. So you have not to worry about that on higher level. Although that not all browsers support standard as they suppose to, t...
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How to remove an HTML element using Javascript?

...it the form, handle the submit event on the form instead, and return false from your handler: HTML: <form onsubmit="return removeDummy(); "> <input type="submit" value="Remove DUMMY"/> </form> JavaScript: function removeDummy() { var elem = document.getElementById('du...
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How to uncommit my last commit in Git [duplicate]

... @Jefromi: every answer in this question is totally wrong to emphasize --hard, the --soft, is necessary for it to be "uncommit last commit", a --hard will not only uncommit but also destroy your commit. I nearly destroyed a whol...
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Any reason not to use '+' to concatenate two strings?

...ome cases, but other implementations can't, so programmers are discouraged from relying on this.) ''.join is the right way to do this. ...
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How to revert a “git rm -r .”?

I accidentely said git rm -r . . How do I recover from this? 12 Answers 12 ...
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How should I choose an authentication library for CodeIgniter? [closed]

... and simple to integrate with CodeIgniter Supports sending emails directly from the library Well documented online and good active dev/user community Simple to implement into a project Cons More complex DB schema than some others Documentation lacks detail in some areas SimpleLoginSecure Pros ...