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Why does javascript map function return undefined?
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187
You aren't returning anything in the case that the item is not a string. In that case, the fun...
Java 8: Where is TriFunction (and kin) in java.util.function? Or what is the alternative?
...you
can't just leave an argument open. You can't just say "well, let x := 1" and try out
every y you may like to try. You have to construct every time the whole tuple with
x := 1. So if you like to see what the functions return for y := 1, y := 2, y := 3 you
have to write f(1,1) , f(1,2) , f(1,3)....
Extract subset of key-value pairs from Python dictionary object?
I have a big dictionary object that has several key value pairs (about 16), but I am only interested in 3 of them. What is the best way (shortest/efficient/most elegant) to achieve that?
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How to test an SQL Update statement before running it?
...e as the UPDATE.
So if you UPDATE is
UPDATE foo
SET bar = 42
WHERE col1 = 1
AND col2 = 'foobar';
The following will show you which rows will be updated:
SELECT *
FROM foo
WHERE col1 = 1
AND col2 = 'foobar';
shar...
XML schema or DTD for logback.xml?
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edited Jul 4 '17 at 10:25
answered Dec 24 '12 at 20:37
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How can I calculate the time between 2 Dates in typescript
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160
Use the getTime method to get the time in total milliseconds since 1970-01-01, and subtract th...
汇编语言超浓缩教程（汇编入门必备） - C/C++ - 清泛网 - 专注C/C++及内核技术
...，不同的CPU其汇编语言的指令语法亦不相同。个人电脑由1981年推出至今，其CPU发展过程为：8086→80286→80386→80486→PENTIUM →……，还有AMD、CYRIX等旁支。后面兼容前面CPU的功能，只不过多了些指令（如多能奔腾的MMX指...
How to get maximum value from the Collection (for example ArrayList)?
...aximum value in this list. E.g. suppose the arrayList stored values are : 10, 20, 30, 40, 50 and the max
value would be 50 .
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Dealing with “Xerces hell” in Java/Maven?
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11 Answers
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How to parse JSON in Python?
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Very simple:
import json
data = json.loads('{"one" : "1", "two" : "2", "three" : "3"}')
print data['two']
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