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Clojure: reduce vs. apply
... the ultimate result returned) for associative functions which need to see all their arguments in the variable-arity case. When they are result-wise equivalent, I'd say that apply is always perfectly idiomatic, while reduce is equivalent -- and might shave off a fraction of a blink of an eye -- in a...
How to compare arrays in JavaScript?
I'd like to compare two arrays... ideally, efficiently. Nothing fancy, just true if they are identical, and false if not. Not surprisingly, the comparison operator doesn't seem to work.
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Is there any pythonic way to combine two dicts (adding values for keys that appear in both)?
...t;> A + B
Counter({'c': 7, 'b': 5, 'd': 5, 'a': 1})
Counters are basically a subclass of dict, so you can still do everything else with them you'd normally do with that type, such as iterate over their keys and values.
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What are the differences between Perl, Python, AWK and sed? [closed]
...is designed to apply the actions from a script to each line (or, more generally, to specified ranges of lines) of the input file or files. Its language is based on ed, the Unix editor, and although it has conditionals and so on, it is hard to work with for complex tasks. You can work minor miracles ...
What is a stored procedure?
... a couple of ways. Most major DBMs support stored procedures; however, not all do. You will need to verify with your particular DBMS help documentation for specifics. As I am most familiar with SQL Server I will use that as my samples.
To create a stored procedure the syntax is fairly simple:
CRE...
How can I escape square brackets in a LIKE clause?
...derscore from a query, so I ended up with this:
WHERE b.[name] not like '\_%' escape '\' -- use \ as the escape character
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SwipeRefresh 拓展：下拉刷新 · App Inventor 2 中文网
...收起刷新指示圈。
预设颜色常量
_Color_holo_blue_bright预设颜色：亮蓝()
Android Holo 主题的 亮蓝 颜色常量，可直接用作刷新指示圈颜色。
_Color_holo_blue_dark预设颜色：深蓝()
Android Holo 主题的 深蓝 颜色常量...
Mysql: Select rows from a table that are not in another
How to select all rows in one table that do not appear on another?
8 Answers
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How do I trim leading/trailing whitespace in a standard way?
... C? I'd roll my own, but I would think this is a common problem with an equally common solution.
38 Answers
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Setting PATH environment variable in OSX permanently
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This worked in EL Capitan. Close all the terminals and open a new terminal to check echo $PATH.
– Prem Ananth C
Apr 3 '16 at 12:25
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