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Regex to check whether a string contains only numbers [duplicate]
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This one will allow also for signed and float numbers or empty string:
var reg = /^-?\d*\.?\d*$/
If you don't want allow to empty string use this one:
var reg = /^-?\d+\.?\d*$/
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How do I check if an index exists on a table field in MySQL?
...name, this way you don't need to find out the index name if it is automatically added without name.
– Programista
Apr 9 '14 at 11:05
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gulp globbing- how to watch everything below directory
This is a pretty dumb question, but I haven't really been able to find a satisfactory answer: How do I use gulp globbing to select all files in all subdirectories below a certain directory?
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Best way to get application folder path
...eful for accessing files whose location is relative to the application install directory.
In an ASP.NET application, this will be the application root directory, not the bin subfolder - which is probably what you usually want. In a client application, it will be the directory containing the main ex...
A JRE or JDK must be available in order to run Eclipse. No JVM was found after searching the followi
...st nailed down the root cause on my own Windows machine. The GlassFish installer complained with exactly the same error message and after digging in GlassFish forums, the cause was clear: a corrupt JRE install on a Windows machine. My JRE came along with the JDK and the Java 6 JDK installer didn't i...
Uint8Array to string in Javascript
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For anyone lazy like me, npm install text-encoding, var textEncoding = require('text-encoding'); var TextDecoder = textEncoding.TextDecoder;. No thanks.
– Evan Hu
Nov 29 '16 at 6:11
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MFC RadioButton用法详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...件定义Control变量或Value变量，每组只能定义一个）
BOOL m_Radio1;//对应于组 1 1
BOOL m_Radio3; //对应于组 2 1
BOOL m_Radio7; //对应于组 3 1
BOOL m_Radio9; //对应于组 4 1
CButton m_RBtGroup1; //对应于组 1 1
CButton m_RBtGroup2;...
jquery IDs with spaces
... so Elliot's answer helps tremendously, whereas glavic's offers no help at all.
– daybreaker
Jun 27 '11 at 18:59
Thank...
What is the dual table in Oracle?
...of dummy table with a single record used for selecting when you're not actually interested in the data, but instead want the results of some system function in a select statement:
e.g. select sysdate from dual;
See http://www.adp-gmbh.ch/ora/misc/dual.html
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Mac OS X - EnvironmentError: mysql_config not found
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Ok, well, first of all, let me check if I am on the same page as you:
You installed python
You did brew install mysql
You did export PATH=$PATH:/usr/local/mysql/bin
And finally, you did pip install MySQL-Python (or pip3 install mysqlclient if...