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Base64 encoding and decoding in client-side Javascript
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Some browsers such as Firefox, Chrome, Safari, Opera and IE10+ can handle Base64 natively. Take a look at this Stackoverflow question. It's using btoa() and atob() functions.
For server-side JavaScript (Node), you can use Buffers to decode.
If you are going for a cross-browser solut...
How does grep run so fast?
...omparison
# (everything is in the buffer cache)
$ time grep -c 'tg=f_c' 20140910.log
28
0.168u 0.068s 0:00.26
$ time grep -c ' /cc/merchant.json tg=f_c' 20140910.log
28
0.100u 0.056s 0:00.17
The longer form is 35% faster!
How come? Boyer-Moore consructs a skip-forward table from the pattern-st...
How do I calculate the normal vector of a line segment?
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answered Aug 7 '09 at 8:49
Oren TrutnerOren Trutner
22k77 gold badges5050 silver badges5555 bronze badges
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In JavaScript, is returning out of a switch statement considered a better practice than using break?
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10
@Mark Costello's answer made me thank a bit more about your question. I think you're looking for a general "best practice" guideline, but i...
Get the key corresponding to the minimum value within a dictionary
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answered Jul 19 '10 at 16:21
community wiki
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Converting string from snake_case to CamelCase in Ruby
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10 Answers
10
Active
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Get city name using geolocation
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204
You would do something like that using Google API.
Please note you must include the google ma...
Check a collection size with JSTL
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<c:if test="${companies.size() > 0}">
</c:if>
This syntax works only in EL 2.2 or newer (Servlet 3.0 / JSP 2.2 or newer). If you're facing a XML parsing error because you're using JSPX or Facelets instead of JSP, then use gt instead of >.
<c...
How to get a substring of text?
I have text with length ~700. How do I get only ~30 of its first characters?
5 Answers
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python numpy ValueError: operands could not be broadcast together with shapes
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user2357112 supports Monica
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answered Jul 3 '14 at 22:08
DrVDrV
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