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Which timestamp type should I choose in a PostgreSQL database?
...ute a bit more.
Absolute time is used to record an event. Examples: "User 123 logged in" or "a graduation ceremonies start at 2011-05-28 2pm PST." Regardless of your local time zone, if you could teleport to where the event occurred, you could witness the event happening. Most time data in a databa...
在 App Inventor 2 中使用图像 · App Inventor 2 中文网
... 隐私策略和使用条款 技术支持 service@fun123.cn
What is 'Context' on Android?
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123
A Context is a handle to the system; it provides services like resolving resources, obtaining ...
Colors in JavaScript console
...36px 121px hsl(653.4, 100%, 50%), -38px 122px hsl(658.8, 100%, 50%), -39px 123px hsl(664.2, 100%, 50%), -41px 124px hsl(669.6, 100%, 50%), -42px 125px hsl(675, 100%, 50%), -43px 126px hsl(680.4, 100%, 50%), -45px 127px hsl(685.8, 100%, 50%), -46px 128px hsl(691.2, 100%, 50%), -47px 129px hsl(696.6, ...
What are the differences between Generics in C# and Java… and Templates in C++? [closed]
...e from this situation, consider the following code:
Y<int>::my_type(123);
This code statement is perfectly valid and tells C++ to execute the function call to Y<int>::my_type. However, if my_type is not a function but rather a type, this statement would still be valid and perform a sp...
For-each over an array in JavaScript
...
123
Loop backwards
I think the reverse for loop deserves a mention here:
for (var i = array.leng...
What is a reasonable code coverage % for unit tests (and why)? [closed]
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GishuGishu
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insert vs emplace vs operator[] in c++ map
...will overwrite the previous value if one exists.
– dk123
Sep 30 '13 at 9:47
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String concatenation in Ruby
...; but that is not the usual way
With string interpolation
source = "#{ROOT_DIR}/#{project}/App.config"
with +
source = "#{ROOT_DIR}/" + project + "/App.config"
The second method seems to be more efficient in term of memory/speed from what I've seen (not measured though). All three methods will...
A simple explanation of Naive Bayes Classification
...sitive =
Prob(Test is positive|Disease) * P(Disease)
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(scaled by) Prob(Testing Positive, with or without the disease)
Now, all this was just preamble, to get to Naive Bayes.
Getting to Naive Bayes'
So far, ...