大约有 43,500 项符合查询结果（耗时：0.0595秒） [XML]
What is a plain English explanation of “Big O” notation?
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How to convert latitude or longitude to meters?
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Here is a javascript function:
function measure(lat1, lon1, lat2, lon2){ // generally used geo measurement function
var R = 6378.137; // Radius of earth in KM
var dLat = lat2 * Math.PI / 180 - lat1 * Math.PI / 180;
var dLon = lon2 * Math.PI / 180 - lon1 * Math.PI / 180;
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What is a “surrogate pair” in Java?
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answered May 5 '11 at 19:28
Jeffrey L WhitledgeJeffrey L Whitledge
51.2k99 gold badges6363 silver badges9595 bronze badges
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Convert camelCaseText to Sentence Case Text
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20 Answers
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Circle line-segment collision detection algorithm?
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27 Answers
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PHP best way to MD5 multi-dimensional array?
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265
(Copy-n-paste-able function at the bottom)
As mentioned prior, the following will work.
md5(...
Converting camel case to underscore case in ruby
... underscore
self.gsub(/::/, '/').
gsub(/([A-Z]+)([A-Z][a-z])/,'\1_\2').
gsub(/([a-z\d])([A-Z])/,'\1_\2').
tr("-", "_").
downcase
end
end
Then you can do fun stuff:
"CamelCase".underscore
=> "camel_case"
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dplyr summarise: Equivalent of “.drop=FALSE” to keep groups with zero length in output
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Since dplyr 0.8 group_by gained the .drop argument that does just what you asked for:
df = dat...
Why can a function modify some arguments as perceived by the caller, but not others?
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Some answers contain the word "copy" in a context of a function call. I find it confusing.
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How to use a variable inside a regular expression?
...double curly braces. Let's say you want to match TEXTO followed by exactly 2 digits:
if re.search(rf"\b(?=\w){re.escape(TEXTO)}\d{{2}}\b(?!\w)", subject, re.IGNORECASE):
print("match")
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