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TSQL - Cast string to integer or return default value
...ARE @Test TABLE(Value nvarchar(50)) -- Result
INSERT INTO @Test SELECT '1234' -- 1234
INSERT INTO @Test SELECT '1,234' -- 1234
INSERT INTO @Test SELECT '1234.0' -- 1234
INSERT INTO @Test SELECT '-1234' -- -1234
INSERT INTO @Test SELECT '$1234' -- ...
Command to get time in milliseconds
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date +%s%N returns the number of seconds + current nanoseconds.
Therefore, echo $(($(date +%s%N)/1000000)) is what you need.
Example:
$ echo $(($(date +%s%N)/1000000))
1535546718115
date +%s returns the number of seconds since the epoch, if that's useful.
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苹果全球开发者大会：无硬件 iOS 9等三大系统更新 - 资讯 - 清泛网 - 专注C...
苹果全球开发者大会：无硬件 iOS 9等三大系统更新新浪手机讯 6月9日凌晨消息，2015年苹果全球开发者大会(WWDC 2015)在美国旧金山正式开幕，本届主题为the epicenter of change(变革的 新浪手机讯 6月9日凌晨消息，2015年苹果全球开发...
Difference between CR LF, LF and CR line break types?
I'd like to know the difference (with examples if possible) between CR LF (Windows), LF (Unix) and CR (Macintosh) line break types.
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adding directory to sys.path /PYTHONPATH
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You could use:
import os
path = 'the path you want'
os.environ['PATH'] += ':'+path
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Static variables in JavaScript
...ction Podcast() {
// private variables
var _somePrivateVariable = 123;
// object properties (read/write)
this.title = 'Astronomy Cast';
this.description = 'A fact-based journey through the galaxy.';
this.link = 'http://www.astronomycast.com';
// for read access to _som...
Insert a commit before the root commit in Git?
...g with a TON of merge conflicts. Any advice? :((
– kp123
Dec 31 '19 at 20:03
@kp123 try an empty commit :)
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How do I check the operating system in Python?
...nux" or platform == "linux2":
# linux
elif platform == "darwin":
# OS X
elif platform == "win32":
# Windows...
sys.platform has finer granularity than sys.name.
For the valid values, consult the documentation.
See also the answer to “What OS am I running on?”
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How to measure time in milliseconds using ANSI C?
...NSI C function that provides better than 1 second time resolution but the POSIX function gettimeofday provides microsecond resolution. The clock function only measures the amount of time that a process has spent executing and is not accurate on many systems.
You can use this function like this:
s...
Which would be better for concurrent tasks on node.js? Fibers? Web-workers? or Threads?
...sion and one of them definitely needs to be used - afterall what's the purpose of having a server which is just good at IO and nothing else? Suggestions needed!
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