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Creating a zero-filled pandas data frame
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When I did it this way, I could not alter the "0" values. TypeError: 'numpy.float64' object does not support item assignment
– RightmireM
Jan 16 '18 at 12:48
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Spring Boot JPA - configuring auto reconnect
...erties up to 1.3
spring.datasource.testOnBorrow=true
spring.datasource.validationQuery=SELECT 1
As djxak noted in the comment, 1.4+ defines specific namespaces for the four connections pools Spring Boot supports: tomcat, hikari, dbcp, dbcp2 (dbcp is deprecated as of 1.5). You need to check which ...
Why can't I use Docker CMD multiple times to run multiple services?
...XPOSE, but contrary to e.g. RUN and ADD. By this, I mean that you can override it later, in an extending Dockerfile, or simple in your run command, which is what you are experiencing. At all times, there can be only one CMD.
If you want to run multiple services, I indeed would use supervisor. You c...
When do I need to use AtomicBoolean in Java?
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@axtavt: I think it's a perfectly valid real-world example if initialized is simply being used to ensure that one and only one thread will invoke the initialize() method. Obviously initialized being true doesn't mean that initialization has definitely completed ...
Git: Set up a fetch-only remote?
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I don't think you can remove the push URL, you can only override it to be something other than the pull URL. So I think the closest you'll get is something like this:
$ git remote set-url --push origin no-pushing
$ git push
fatal: 'no-pushing' does not appear to be a git repository
fa...
Infinite scrolling with React JS
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Basically when scrolling you want to decide which elements are visible and then rerender to display only those elements, with a single spacer element on top and bottom to represent the offscreen elements.
Vjeux made a fiddle here which you can look at: jsfiddle.
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Node.js - use of module.exports as a constructor
...t they to can act just like Objects (technically they are Objects). That said your question about using the new keywords has a simple answer: Yes. I'll illustrate...
Module exports
You can either use the exports variable provided to attach properties to it. Once required in another module those as...
Will Try / Finally (without the Catch) bubble the exception?
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@David: You can't return from a finally block in C#.
– Jon Skeet
Dec 1 '10 at 17:20
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How can I override inline styles with external CSS?
...nline styles, but I don't have access to change this markup. How do I override inline styles in a document using only CSS? I don't want to use jQuery or JavaScript.
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Python Infinity - Any caveats?
...verflowError: (34, 'Numerical result out of range')
The inf value is considered a very special value with unusual semantics, so it's better to know about an OverflowError straight away through an exception, rather than having an inf value silently injected into your calculations.
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