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Decimal number regular expression, where digit after decimal is optional
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Use the following:
/^\d*\.?\d*$/
^ - Beginning of the line;
\d* - 0 or more digits;
\.? - An optional dot (escaped, because in regex, . is a special character);
\d* - 0 or more digits (the decimal part);
$ - End of the line.
This allows for .5 decimal rather than requiring the leading zer...
How do you test to see if a double is equal to NaN?
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edited Sep 19 '18 at 0:31
Pluto
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answered Sep 21 '09 at 20...
How to order events bound with jQuery
...Dot = eventType.indexOf(".");
var eventNameSpace = indexOfDot > 0 ? eventType.substring(indexOfDot) : "";
eventType = indexOfDot > 0 ? eventType.substring(0, indexOfDot) : eventType;
handler = handler == undefined ? eventData : handler;
eventData = typeof event...
Setting variable to NULL after free
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answered Jun 22 '09 at 5:40
Martin v. LöwisMartin v. Löwis
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How to redirect output of an entire shell script within the script itself?
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answered Nov 24 '08 at 19:11
Jonathan LefflerJonathan Leffler
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App Inventor 2 LEGO 乐高专题 · App Inventor 2 中文网
...系方式： 不需要回复的可留空~ 意见反馈（300字以内）： 给个鼓励也行呐~o~ 提供截图（仅截取当前可视区域） delete edit 高亮或隐藏信息 ...
Difference between jQuery parent(), parents() and closest() functions
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edited Dec 21 '18 at 10:05
Amit Shah
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answere...
How to check if there exists a process with a given pid in Python?
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Sending signal 0 to a pid will raise an OSError exception if the pid is not running, and do nothing otherwise.
import os
def check_pid(pid):
""" Check For the existence of a unix pid. """
try:
os.kill(pid, 0)
e...
Hidden Features of C#? [closed]
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'transform3d' not working with position: fixed children
...ances, a fixed div would be positioned exactly where it is specified ( top:0px , left:0px ).
10 Answers
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