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How to index characters in a Golang string?
...erals are character sequences between double quotes "" using the (possibly multi-byte) UTF-8 encoding of individual characters. In UTF-8, ASCII characters are single-byte corresponding to the first 128 Unicode characters. Strings behave like slices of bytes. A rune is an integer value identifying a ...
Fastest Way to Find Distance Between Two Lat/Long Points
I currently have just under a million locations in a mysql database all with longitude and latitude information.
15 Answers...
Why do we copy then move?
I saw code somewhere in which someone decided to copy an object and subsequently move it to a data member of a class. This left me in confusion in that I thought the whole point of moving was to avoid copying. Here is the example:
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How to explain Katana and OWIN in simple words and uses?
I have read many articles about the OWIN and Katana projects, but I could not get the whole picture of it.
4 Answers
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Why is an int in OCaml only 31 bits?
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This is called a tagged pointer representation, and is a pretty common optimization trick used in many different interpreters, VMs and runtime systems for dem>cad m>es. Pretty much every Lisp implementation uses them, many Smalltalk VMs, many Ruby interpreters, and so on.
Usually, in those lang...
jQuery access input hidden value
...dden fields' values with val(), just like you can do on any other input element:
<input type="hidden" id="foo" name="zyx" value="bar" />
alert($('input#foo').val());
alert($('input[name=zyx]').val());
alert($('input[type=hidden]').val());
alert($(':hidden#foo').val());
alert($('input:hidden[...
How to check a string for specific characters?
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Assuming your string is s:
'$' in s # found
'$' not in s # not found
# original answer given, but less Pythonic than the above...
s.find('$')==-1 # not found
s.find('$')!=-1 # found
And so on for other characters.
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What is the Sign Off feature in Git for?
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Sign-off is a requirement for getting patches into the Linux kernel and a few other projects, but most projects don't actually use it.
It was introduced in the wake of the SCO lawsuit, (and other accusations of copyright infringement from SCO, m...
Add custom icons to font awesome
I love the Font Awesome icon font and want to use it for most of the icons on my site but there are a few custom svg icons that I'd need in addition to what's offered.
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Is there any way to close a StreamWriter without closing its BaseStream?
My root problem is that when using calls Dispose on a StreamWriter , it also disposes the BaseStream (same problem with Close ).
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