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How can I remove 3 characters at the end of a string in php?
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callmebob
4,51355 gold badges2323 silver badges3737 bronze badges
answered Feb 6 '11 at 20:10
bensiubensiu
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Why is [1,2] + [3,4] = “1,23,4” in JavaScript?
...t how the + operator behaves in general also.
So, here it goes.
Excluding E4X and implementation-specific stuff, Javascript (as of ES5) has 6 built-in data types:
Undefined
Null
Boolean
Number
String
Object
Note that although typeof somewhat confusingly returns object for Null and function for cal...
python pandas: apply a function with arguments to a series
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4 Answers
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Active
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Lua简明教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ua命令后进入lua的shell中执行语句。
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chenhao-air:lua chenhao$ lua
Lua 5.2.2 Copyright (C) 1994-2013 Lua.org, PUC-Rio
> print("Hello, World")
Hello, World
>
也可以把脚本存成一个文件，用如下命令行...
How to get device make and model on iOS?
...ing if it's possible to detect/know if I have an iPhone 3GS vs. and iPhone 4 vs. an iPhone 4S (in actuality, all I really want to do is determine if I have a 3G or not, because I'm doing fairly graphics intensive stuff) .
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Bomb dropping algorithm
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edited Mar 9 '13 at 8:46
community wiki
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Get column index from column name in python pandas
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Sure, you can use .get_loc():
In [45]: df = DataFrame({"pear": [1,2,3], "apple": [2,3,4], "orange": [3,4,5]})
In [46]: df.columns
Out[46]: Index([apple, orange, pear], dtype=object)
In [47]: df.columns.get_loc("pear")
Out[47]: 2
although to be honest I do...
What is the best regular expression to check if a string is a valid URL?
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I wrote my URL (actually IRI, internationalized) pattern to comply with RFC 3987 (http://www.f...
How to get all subsets of a set? (powerset)
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edited Jun 9 '19 at 17:49
Ran Feldesh
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answered Sep 26 '09 at 22...