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Can I add a UNIQUE constraint to a PostgreSQL table, after it's already created?
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@Jasen That's totally clear. Just wanted to emphasize that the answer "But if you have non-unique entries on your table. Here is the how to add unique constraint on your table." will not work. Non-unique entries must of course always be conso...
express.js - single routing handler for multiple routes in a single line
Is there a way to make this on a single function call?
6 Answers
6
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How to restart Activity in Android
...his:
Intent intent = getIntent();
finish();
startActivity(intent);
Basically, I'm calling finish() first, and I'm using the exact same intent this activity was started with. That seems to do the trick?
UPDATE: As pointed out by Ralf below, Activity.recreate() is the way to go in API 11 and beyon...
How to use Greek symbols in ggplot2?
...titute, this also works in places where expression does not work, and even allows other formatting like italics, bold etc.
– Sam
Apr 1 '16 at 14:13
add a comment
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Visual Studio Immediate window: how to see more than the first 100 items
..., If you add your object to the watch window. Expand the properties, where all are displayed. Then Ctrl-A and Copy. You can then paste in excel to get an organized list of properties and their values.
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Set timeout for ajax (jQuery)
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Make sure to wrap the entire $.ajax call with a try/catch. Aborts are not caught by jQuery and will be thrown outside of the $.ajax call.
– justdan23
Dec 13 '19 at 15:08
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Is there a performance impact when calling ToList()?
...on) constructor. This constructor must make a copy of the array (more generally IEnumerable<T>), otherwise future modifications of the original array will change on the source T[] also which wouldn't be desirable generally.
I would like to reiterate this will only make a difference with a hu...
How to get jQuery to wait until an effect is finished?
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You can specify a callback function:
$(selector).fadeOut('slow', function() {
// will be called when the element finishes fading out
// if selector matches multiple elements it will be called once for each
});
Documentation here.
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Pushing from local repository to GitHub hosted remote
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Are you actually typing '~origin~' or just 'origin'? You'd best avoid tilde as it means something to Git.
– GoZoner
May 13 '12 at 21:01
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Running Selenium WebDriver python bindings in chrome
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For Linux
Check you have installed latest version of chrome brwoser-> chromium-browser -version
If not, install latest version of chrome sudo apt-get install chromium-browser
get appropriate version of chrome driver from here
Unzip the chromedriver.zi...