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How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?
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I was just wrestling with a similar problem myself, but didn't want the overhead of a function. I came up with the following query:
SELECT myfield::integer FROM mytable WHERE myfield ~ E'^\\d+$';
Postgres shortcuts its conditionals, so you shouldn't get any non-integers hitting ...
How can I count text lines inside an DOM element? Can I?
I'm wondering if there's a way to count lines inside a div for example. Say we have a div like so:
16 Answers
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How to merge YAML arrays?
...@MinaLuke, inferior in comparison to what? None of the current answers provide a way to merge two items using only yaml... Moreover, there is nothing in the question stating that the OP wishes to use this in CI/CD. Finally, when this is used in CI/CD, logging only depends on the particular CI/CD use...
How do I verify jQuery AJAX events with Jasmine?
...ml ). I have configured SpecRunner to load jquery and other .js files. Any ideas why the following doesn't work? has_returned does not become true, even thought the "yuppi!" alert shows up fine.
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How to cancel a local git commit
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I don't know what this did, but a lot of files appeard on my change list, files I didn't touch
– FRR
Feb 5 '15 at 14:05
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Android: set view style programmatically
...without extending as the 3 arg constructor is public anyhow developer.android.com/reference/android/widget/…, android.util.AttributeSet, int)
– Dori
Jan 27 '14 at 10:44
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Python add item to the tuple
I have some object.ID-s which I try to store in the user session as tuple. When I add first one it works but tuple looks like (u'2',) but when I try to add new one using mytuple = mytuple + new.id got error can only concatenate tuple (not "unicode") to tuple .
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How do I check/uncheck all checkboxes with a button using jQuery?
...rop('checked', false) should be used instead, as explained in @richard-garside answer.
– David Torres
Aug 19 '16 at 10:23
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Is it possible to disable scrolling on a ViewPager
...s of ViewPager that has a private boolean flag, isPagingEnabled. Then override the onTouchEvent and onInterceptTouchEvent methods. If isPagingEnabled equals true invoke the super method, otherwise return.
public class CustomViewPager extends ViewPager {
private boolean isPagingEnabled = true;
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Changing image sizes proportionally using CSS?
...nfigure my thumbnail gallery so all the images appear the same height and width. However when I change the Css code to,
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