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How to turn on line numbers in IDLE?
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Version 3.8 or newer:
To show line numbers in the current window, go to Options and click Show Line Numbers.
To show them automatically, go to Options > Configure IDLE > General and check the Show line numbers in new windows box.
Version 3.7 or older:
Unfortunately there is no...
Error - Unable to access the IIS metabase
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On Windows 8 Pro:
%systemroot%\inetsrv\config
On Windows 7 and 8.1 and 10
%systemroot%\System32\inetsrv\config
(Where %systemroot% is usually C:\Windows)
Navigate to the appropriate location above in Windows Explorer. ...
Error during installing HAXM, VT-X not working
...dering graphics more smoothly. I downloaded appropriate file HAXM file for Windows 7 64 bit, unpacked and started installing. However, during the installation process I get this error:
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iTerm2 keyboard shortcut - split pane navigation
... and ] are also impossible to use on the french layout, ⌘+⌥+arrow-keys wins
– Cyril Duchon-Doris
Aug 17 '18 at 16:12
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show 2 more comme...
JSON formatter in C#?
...oft.Json version 10.0.3. Formatted a 6MB JSON file in under 5 seconds on a Win10 Intel i7-7700 CPU (4.20Ghz).
– batpox
Jul 28 '17 at 0:17
add a comment
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Is a LINQ statement faster than a 'foreach' loop?
...i3-2328M CPU @ 2.20GHz, 2200 Mhz, 2 Core(s) with 8GB ram running Microsoft Windows 7 Ultimate.
It looks like LINQ might be faster than for each loop. Here are the results I got:
Exists = True
Time = 174
Exists = True
Time = 149
It would be interesting if some of you could copy & paste th...
How to force LINQ Sum() to return 0 while source collection is empty
Basically when I do the following query, if no leads were matched the following query throws an exception. In that case I'd prefer to have the sum equalize 0 rather than an exception being thrown.
Would this be possible in the query itself - I mean rather than storing the query and checking query.A...
ExpressJS How to structure an application?
...'s just scaffolding and not a fully working app, but I'm assuming the following key architecture points:
The site has some traditional static pages/templates
The "application" portion of the site is developed as a Single Page Application style
The application exposes a REST/JSON style API to the b...
互联网造车运动 - 资讯 - 清泛网 - 专注C/C++及内核技术
...其核心技术在于自主设计的底盘和电池控制系统，从最初使用莲花Elise底盘到自主设计，这期间历时长达十年之久，此外，特斯拉还学习了丰田的质量控制和问题追溯体系，还有奔驰的测试流程，传统汽车企业的支持是特斯拉成...
Does Foreign Key improve query performance?
...Edit
As the link now seems to be dead (kudos to Chris for noticing), following shows the gist of why foreign keys can improve (and hurt) performance.
Can Foreign key improve performance
Foreign key constraint improve performance at the time of reading
data but at the same time it slows down ...