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Using psql how do I list extensions installed in a database?
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@SoichiHayashi \dx is a psql command which was introduced with 9.0 when the create extension feature was released. So yes, you need to upgrade your psql as well (you should always use the psql version that matches your DB version)
– a_h...
Check if a string has white space
...ces.
$ matches the end of the string.
Try replacing the regex with /\s/ (and no quotes)
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Reading/parsing Excel (xls) files with Python
...o, be warned that doing this is a real PITA. The number of caveats is huge and the documentation is lacking and annoying. I ran into many weird bugs and gotchas, some of which took many hours to figure out.
UPDATE: For newer .xlsx files, the recommended library for reading and writing appears to be...
Best content type to serve JSONP?
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Based on the information in this article text/javascript and application/javascript would work in IE 9. I wonder @pit-digger if the server just wasn't returning the correct content-type header.
– spig
May 6 '14 at 14:13
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How do I access the ModelState from within my View (aspx page)?
... Also worthy to note that you can just do ViewData.ModelState and if you want to display some conditional markup on errors you can do like this: @if (!ViewData.ModelState.IsValid)
– The Muffin Man
Sep 15 '13 at 2:16
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In java how to get substring from a string till a character c?
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look at String.indexOf and String.substring.
Make sure you check for -1 for indexOf.
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rotating axis labels in R
...round 45 degrees to strike a good balance between readability (horizontal) and space efficiency (vertical).
– jmb
Aug 25 '19 at 19:31
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How to check for null in Twig?
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And to check if something is not null, simply do {% if var is not null %}
– J.-B. C.
Sep 6 '12 at 19:31
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What are the complexity guarantees of the standard containers?
Apparently ;-) the standard containers provide some form of guarantees.
3 Answers
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HTML span align center not working?
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A div is a block element, and will span the width of the container unless a width is set. A span is an inline element, and will have the width of the text inside it. Currently, you are trying to set align as a CSS property. Align is an attribute.
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