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Test whether string is a valid integer
...of "+" (e.g. +30) which obviously is an integer.
Results:
$ int_check.sh 123
123 is an integer !!
$ int_check.sh 123+
ERROR: first parameter must be an integer.
$ int_check.sh -123
-123 is an integer !!
$ int_check.sh +30
+30 is an integer !!
$ int_check.sh -123c
ERROR: first parameter must be...
What does [object Object] mean?
...String(), );
Alert.alert( JSON.stringify(userDate) );
reference
https://off.tokyo/blog/react-native-object-object/
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Base64Util 拓展：支持图像框、画布、文件、文本字符串、图像精灵base64编...
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版权信息
原作者：Kevinkun
原始网址：https://wangsk789.github.io/base64util/
开源致谢：基于 @TIMAI2 的开源代码
您的改进建议 联系方式： 不需要回复的可留空~ 意见反...
How can I pad a String in Java?
...*chars
Display '*' for characters of password:
String password = "secret123";
String padded = String.format("%"+password.length()+"s", "").replace(' ', '*');
output has the same length as the password string:
secret123
*********
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Passing data between a fragment and its container activity
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Since you are accessing a function within YOUR Activity (and not the parent Android activity) you will need to cast your getActivity() call: ((MyActivity) getActivity()).getResult();
– Nick
Feb 21 '12 at 17...
Pulse Secure解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...gram.asp?adid=1036
Pulse Secure：
了解更多请至英文官网：https://www.pulsesecure.net/
Pulse Secure,解决方案
Slowing speed of Viewpager controller in android
... After more careful look at sources: find mScroller.startScroll(sx, sy, dx, dy); in ViewPager source and take look at Scroller realization. startScroll calls other startScroll with DEFAULT_DURATION paramater. Its impossible to make another value for static final field, so one opportunity left...
What exceptions should be thrown for invalid or unexpected parameters in .NET?
...OfRangeException, another developer might say ArgumentException. Make it easy and document the behavior.
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How to check which version of v8 is installed with my NodeJS?
...H)_VERSION' | sed -e 's/^[^0-9]*//'`; V=`echo $V | sed -e 's/ /\./g'`; URL=https://github.com/joyent/node/raw/v$V/ChangeLog; curl --silent $URL | grep 'Upgrade v8' | head -1 | sed -e 's/^.* //'; unset V; unset URL
For example, in my box with node.js 0.4.7 I get:
3.1.8.10
:)
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Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server
...ccess the MySQL Database on your actual server (say your remote address is 123.123.123.123 at port 3306 as user 'root' and I want to change permissions on database 'dataentry'. Remember to change the IP Address, Port, and database name to your settings)
mysql -u root -p
Enter password: <enter p...