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How do I change read/write mode for a file using Emacs?
...-only
or in more recent versions of Emacs
M-x read-only-mode
On my Windows box, that amounts to Alt-x to bring up the meta prompt and typing "toggle-read-only" to call the correct elisp function.
If you are using the default keyboard bindings,
C-x C-q
(which you read aloud as "Contr...
Last segment of URL in jquery
...Sнаđошƒаӽ Solution for url that contains a / at the end: var url = window.location.href.replace(/\/$/, ''); /* remove optional end / */ var lastSeg = url.substr(url.lastIndexOf('/') + 1);
– Ross
Nov 2 '16 at 3:18
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Node.js or Erlang
...eaker. Specifically, it looks like you would need to run under Cygwin for Windows support.
Looks good though.
Edit
Node.js now has native support for Windows.
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What makes JNI calls slow?
...trivial native methods, in 2010 I measured calls at an average 40 ns on my Windows desktop, and 11 ns on my Mac desktop. Unless you're making many calls, you're not going to notice.
That said, calling a native method can be slower than making a normal Java method call. Causes include:
Native meth...
Checking if a key exists in a JavaScript object?
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Valid use case: Gecko 1.9.1 [Firefox 3.5] has no window.onhashchange property. Gecko 1.9.2 [Firefox 3.6] has this property set to undefined (until the hash changes). To feature detect the hash history or the browser version, one must use window.hasOwnProperty("onhashchange...
What is the purpose of the EBP frame pointer register?
...t). GCC, clang, ICC, and MSVC all do it, IIRC, even when targeting 32-bit Windows. Yup, my answer on Why is it better to use the ebp than the esp register to locate parameters on the stack? shows that even 32-bit Windows can omit the frame pointer. 32-bit x86 Linux definitely can and does. And o...
What is digest authentication?
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Nice explanation. Are the username & pwd for a windows user? Where are they generated from?
– SoftwareGeek
Mar 5 '10 at 3:37
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What is the difference between “screen” and “only screen” in media queries?
... examples one by one.
@media (max-width:632px)
This one is saying for a window with a max-width of 632px that you want to apply these styles. At that size you would be talking about anything smaller than a desktop screen in most cases.
@media screen and (max-width:632px)
This one is saying fo...
What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?
...d operating system. For example, a long is 64 bits on Linux and 32 bits on Windows (this was done to keep backwards-compatability, allowing 32-bit programs to compile on 64-bit Windows without any changes).
It is considered good C++ style to avoid short int long ... and instead use:
std::int8_t ...
Remove and Replace Printed items [duplicate]
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It works in windows 7 basic terminal. In python 2.7, I simply use print "whatever to be removed\r", Thanks!
– PhilMacKay
Oct 31 '16 at 15:42
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