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Possibility of duplicate Mongo ObjectId's being generated in two different collections?
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Raj AdvaniRaj Advani
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List comprehension: Returning two (or more) items for each item
...>>> list(chain.from_iterable((f(x), g(x)) for x in range(3)))
[2, 0, 3, 1, 4, 4]
Timings:
from timeit import timeit
f = lambda x: x + 2
g = lambda x: x ** 2
def fg(x):
yield f(x)
yield g(x)
print timeit(stmt='list(chain.from_iterable((f(x), g(x)) for x in range(3)))',
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Automatic exit from bash shell script on error [duplicate]
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edited May 16 '19 at 13:09
Louis
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answered May ...
How can I select the first day of a month in SQL?
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30 Answers
30
Active
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UITableView set to static cells. Is it possible to hide some of the cells programmatically?
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You are looking for this solution :
StaticDataTableViewController 2.0
https://github.com/xelvenone/StaticDataTableViewController
which can show/hide/reload any static cell(s) with or without animation!
[self cell:self.outletToMyStaticCell1 setHidden:hide];
[self cell:self.outletToMyStatic...
常用Git命令汇总 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
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#删除文件的几种方法（貌似Git2.0后有了变化）
#第一种直接在工作区删除
rm your_file #直接在工作区删除文件
git add -u . #将有改动的都提交到暂存区（包括修改的，删除的等操作），貌似git2.0 不加 -u 参...
Python: List vs Dict for look up table
I have about 10million values that I need to put in some type of look up table, so I was wondering which would be more efficient a list or dict ?
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Android canvas draw rectangle
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edited Dec 22 '11 at 15:00
Yuck
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answered D...
Illegal string offset Warning PHP
I get a strange PHP error after updating my php version to 5.4.0-3.
16 Answers
16
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Scroll to the top of the page using JavaScript?
... - I'd just use the native JavaScript window.scrollTo method -- passing in 0,0 will scroll the page to the top left instantly.
window.scrollTo(x-coord, y-coord);
Parameters
x-coord is the pixel along the horizontal axis.
y-coord is the pixel along the vertical axis.
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