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How to allow only numeric (0-9) in HTML inputbox using jQuery?
...ion() {
$("#myTextBox").inputFilter(function(value) {
return /^\d*$/.test(value); // Allow digits only, using a RegExp
});
});
See the JSFiddle demo for more input filter examples. Also note that you still must do server side validation!
Pure JavaScript (without jQuery)
jQuery isn't a...
Difference between Inheritance and Composition
...r example :
class X implements R
{}
class Y implements R
{}
public class Test{
R r;
}
In Test class using r reference I can invoke methods of X class as well as Y class. This flexibility was never there in inheritance
3) Another great advantage : Unit testing
public class X {
p...
ADB Install Fails With INSTALL_FAILED_TEST_ONLY
...
Looks like you need to modify your AndroidManifest.xml
Change android:testOnly="true" to android:testOnly="false" or remove this attribute.
If you want to keep the attribute android:testOnly as true you can use pm install command with -t option, but you may need to push the apk to device first...
Python: using a recursive algorithm as a generator
...h a natural recursive solution. Now it happens that, even for relatively small input, the sequences are several thousands, thus I would prefer to use my algorithm as a generator instead of using it to fill a list with all the sequences.
...
How to convert a String to CharSequence?
...
This answers both. Poster first trivially resolves the String -> CharSequence problem by explaining that a String IS a CharSequence. Then poster answers how to go from CharSequence to String.
– Alex A.
Nov 8 '13 at 23:05...
this.setState isn't merging states as I would expect
...construct a new state and then call setState() on that:
var newSelected = _.extend({}, this.state.selected);
newSelected.name = 'Barfoo';
this.setState({ selected: newSelected });
I've used function _.extend() function (from underscore.js library) here to prevent modification to the existing sele...
Generating a random password in php
...
Security warning: rand() is not a cryptographically secure pseudorandom number generator. Look elsewhere for generating a cryptographically secure pseudorandom string in PHP.
Try this (use strlen instead of count, because count on a string is always 1):
function random...
Specifying colClasses in the read.csv
...nly one columns.
So in your example you should use:
data <- read.csv('test.csv', colClasses=c("time"="character"))
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How to convert int to char with leading zeros?
...
Just tested FORMAT Sql Server 2012 - it is slow, as in "one number per several seconds" slow. Stay away.
– Muposat
Dec 9 '15 at 19:41
...
Performance difference between IIf() and If
...de effects.
Code illustration:
Module Module1
Sub Main()
Dim test As Boolean = False
Dim result As String = IIf(test, Foo(), Bar())
End Sub
Public Function Foo() As String
Console.WriteLine("Foo!")
Return "Foo"
End Function
Public Function Bar(...