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How to test if parameters exist in rails
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In Rails 5, the params object is no longer a hash, and I don't see the key? method. edgeapi.rubyonrails.org/classes/ActionController/…
– stephen.hanson
Nov 8 '16 at 22:32
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Multiple inheritance for an anonymous class
...e same syntax:
SomeClass x = new SomeClass() {
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};
What you can't do is implement more than one interface. You need a named class to do that. Neither an anonymous inner class, nor a named class, however, can extend more than one class.
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Sass combining parent using ampersand (&) with type selectors
...t-root directive causes one or more rules to be emitted at the root of the document, rather than being nested beneath their parent selectors.
We can combine the @at-root directive along with interpolation #{} to arrive at the intended outcome.
SASS
.item {
color: black;
@at-root {
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PHP Session Security
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There are a couple of things to do in order to keep your session secure:
Use SSL when authenticating users or performing sensitive operations.
Regenerate the session id whenever the security level changes (such as logging in). You can even regenerate the ...
No newline at end of file
When doing a git diff it says "No newline at end of file" .
12 Answers
12
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Why is rbindlist “better” than rbind?
I am going through documentation of data.table and also noticed from some of the conversations over here on SO that rbindlist is supposed to be better than rbind .
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How to set environment variables from within package.json
...s.env.NODE_ENV in your app.
Note: This is for Mac & Linux only. For Windows refer to the comments.
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How do I round a decimal value to 2 decimal places (for output on a page)
...'s accurate to like 15 decimal places, and since I'm using it to represent dollars and cents, I only want the output to be 2 decimal places.
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How do I read a text file of about 2 GB? [duplicate]
... I managed to run Glogg without rights to install programs on my Windows laptop as follows: download the Windows installer exe and instead of executing the installer exe, extract it (with e.g. 7-Zip). Inside the extracted root folder, run glogg.exe
– toongeorges
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Best Practice for Forcing Garbage Collection in C#
...collection but in some cases where you are working with large objects that don't always get collected in the 0 generation but where memory is an issue, is it ok to force the collect? Is there a best practice out there for doing so?
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