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Convert .pem to .crt and .key
...kcs12 -in certificate.pfx -out certificate.cer -nodes
Generate rsa keys by OpenSSL
Using OpenSSL on the command line you’d first need to generate a public and private key, you should password protect this file using the -passout argument, there are many different forms that this argument can ...
Given an emacs command name, how would you find key-bindings ? (and vice versa)
...ed information about a command, also any non-interactive function defined, by typing
C-h f function-name
Which will give you detailed information about a function, including any key bindings for it, and
C-h v variable-name
will give you information about any (bound) variable. Key-maps are kept...
How to erase the file contents of text file in Python?
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the reason this works (in both C++ and python) is because by default when you open a file for writing, it truncates the existing contents. So really it's sorta a side effect, and thus I would prefer the explicit call to truncate() for clarity reasons, even though it is unnecessary....
URL matrix parameters vs. query parameters
...cts_name=green&page=1
This way you would also lose the clarity added by the locality of the parameters within the request. In addition, when using a framework like JAX-RS, all the query parameters would show up within each resource handler, leading to potential conflicts and confusion.
If yo...
Prevent redirection of Xmlhttprequest
... response is an HTTP redirect:
If the origin of the URL conveyed by the Location header is same origin
with the XMLHttpRequest origin and the
redirect does not violate infinite
loop precautions, transparently
follow the redirect while observing
the same-origin request e...
Scrolling down both parts of a split-window at the same time in Vim
...he two files?
vimdiff file1 file2
This will give you the scroll binding by default.
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Ruby on Rails: How do I add placeholder text to a f.text_field?
...older text to my f.text_field fields so that the text comes pre-written by default, and when a user click inside the fields, the text goes away - allowing the user to type in the new text?
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How do I verify jQuery AJAX events with Jasmine?
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When I specify ajax code with Jasmine, I solve the problem by spying on whatever depended-on function initiates the remote call (like, say, $.get or $ajax). Then I retrieve the callbacks set on it and test them discretely.
Here's an example I gisted recently:
https://gist.github.co...
Change R default library path using .libPaths in Rprofile.site fails to work
...is not respecting the Rprofile.site settings or perhaps is overriding them by reading an .Rprofile setting from one of the RStudio defaults. It should also be mentioned that the result from this operation also appends the contents of calls to .Library and .Library.site, which is further reason why a...
How do I declare an array of weak references in Swift?
...The provided code works as it is, but fails if you replace the class Stuff by a protocol; see this related question
– Theo
Apr 28 '16 at 12:03
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