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Is it possible to ping a server from Javascript?

...eck to see if remote servers are online or not. When I run it from the command line, my page load goes up to a full 60s (for 8 entries, it will scale linearly with more). ...
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javax.validation.ValidationException: HV000183: Unable to load 'javax.el.ExpressionFactory'

... This solution didn't work for me, i am using hibernate validator 6.0.4 and java.el of 3.0.0 version and i am using WebLogic. Can any one please help me.. appreciated helping hands in advance. – Kushwaha Apr 29 '19 at 20:24 ...
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How can I find out a file's MIME type (Content-Type)?

...ave yum, yum install xdg-utils.noarch An example comparison of xdg-mime and file on a Subrip(subtitles) file $ xdg-mime query filetype subtitles.srt application/x-subrip $ file --mime-type subtitles.srt subtitles.srt: text/plain in the above file only show it as plain text. ...
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Best way to assert for numpy.array equality?

I want to make some unit-tests for my app, and I need to compare two arrays. Since array.__eq__ returns a new array (so TestCase.assertEqual fails), what is the best way to assert for equality? ...
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python: SyntaxError: EOL while scanning string literal

... And careful to only use three quotation marks, I had four by accident and the error came up – Oregano Dec 9 '14 at 23:13 ...
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SQL Server Linked Server Example Query

...: DatabaseServer1.db1.dbo.table1 Update: I know this is an old question and the answer I have is correct; however, I think any one else stumbling upon this should know a few things. Namely, when querying against a linked server in a join situation the ENTIRE table from the linked server will lik...
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Insert html in a handlebar template without escaping

Is there a way to insert a string with html tags into a handlebars template without getting the tags escaped in the outcoming string? ...
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Why not be dependently typed?

... a dependently-typed language". The implication seems to be that with more and more language extensions, Haskell is drifting in that general direction, but isn't there yet. ...
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How to prepend a string to a column value in MySQL?

...hat: UPDATE tbl SET col=CONCAT('test',col); If you want to get cleverer and only update columns which don't already have test prepended, try UPDATE tbl SET col=CONCAT('test',col) WHERE col NOT LIKE 'test%'; share ...
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How to change the cursor into a hand when a user hovers over a list item?

I've got a list, and I have a click handler for its items: 23 Answers 23 ...