#include<stdio.h>
int main()
{
int a,b,i,c,j;
printf("\n Enter the two no. in between you want to check:");
scanf("%d%d",&a,&c);
printf("%d-%d\n",a,c);
for(j=a;j<=c;j++)
{
b=0;
for(i=1;i<=c;i++)
{
if(j%i==0)
{
b++;
}
}
if(b==2)
{
printf("\nPrime number:%d\n",j);
}
else
{
printf("\n\tNot prime:%d\n",j);
}
}
}
This works for me :
$scope.array1 = $scope.array1.concat(array2)
In your case it would be :
$scope.actions.data = $scope.actions.data.concat(data)
I think there have been some good explanations here but I wanted to provide another perspective.
In Scala, you can do mixins as has been described here but what is very interesting is that the mixins are actually 'fused' together to create a new kind of class to inherit from. In essence, you do not inherit from multiple classes/mixins, but rather, generate a new kind of class with all the properties of the mixin to inherit from. This makes sense since Scala is based on the JVM where multiple-inheritance is not currently supported (as of Java 8). This mixin class type, by the way, is a special type called a Trait in Scala.
It's hinted at in the way a class is defined: class NewClass extends FirstMixin with SecondMixin with ThirdMixin ...
I'm not sure if the CPython interpreter does the same (mixin class-composition) but I wouldn't be surprised. Also, coming from a C++ background, I would not call an ABC or 'interface' equivalent to a mixin -- it's a similar concept but divergent in use and implementation.
If performance matters to you make sure you time:
import sys
import timeit
import pandas as pd
print('Python %s on %s' % (sys.version, sys.platform))
print('Pandas version %s' % pd.__version__)
repeat = 3
numbers = 100
def time(statement, _setup=None):
print (min(
timeit.Timer(statement, setup=_setup or setup).repeat(
repeat, numbers)))
print("Format %m/%d/%y")
setup = """import pandas as pd
import io
data = io.StringIO('''\
ProductCode,Date
''' + '''\
x1,07/29/15
x2,07/29/15
x3,07/29/15
x4,07/30/15
x5,07/29/15
x6,07/29/15
x7,07/29/15
y7,08/05/15
x8,08/05/15
z3,08/05/15
''' * 100)"""
time('pd.read_csv(data); data.seek(0)')
time('pd.read_csv(data, parse_dates=["Date"]); data.seek(0)')
time('pd.read_csv(data, parse_dates=["Date"],'
'infer_datetime_format=True); data.seek(0)')
time('pd.read_csv(data, parse_dates=["Date"],'
'date_parser=lambda x: pd.datetime.strptime(x, "%m/%d/%y")); data.seek(0)')
print("Format %Y-%m-%d %H:%M:%S")
setup = """import pandas as pd
import io
data = io.StringIO('''\
ProductCode,Date
''' + '''\
x1,2016-10-15 00:00:43
x2,2016-10-15 00:00:56
x3,2016-10-15 00:00:56
x4,2016-10-15 00:00:12
x5,2016-10-15 00:00:34
x6,2016-10-15 00:00:55
x7,2016-10-15 00:00:06
y7,2016-10-15 00:00:01
x8,2016-10-15 00:00:00
z3,2016-10-15 00:00:02
''' * 1000)"""
time('pd.read_csv(data); data.seek(0)')
time('pd.read_csv(data, parse_dates=["Date"]); data.seek(0)')
time('pd.read_csv(data, parse_dates=["Date"],'
'infer_datetime_format=True); data.seek(0)')
time('pd.read_csv(data, parse_dates=["Date"],'
'date_parser=lambda x: pd.datetime.strptime(x, "%Y-%m-%d %H:%M:%S")); data.seek(0)')
prints:
Python 3.7.1 (v3.7.1:260ec2c36a, Oct 20 2018, 03:13:28)
[Clang 6.0 (clang-600.0.57)] on darwin
Pandas version 0.23.4
Format %m/%d/%y
0.19123052499999993
8.20691274
8.143124389
1.2384357139999977
Format %Y-%m-%d %H:%M:%S
0.5238807110000039
0.9202787830000005
0.9832778819999959
12.002349824999996
So with iso8601-formatted date (%Y-%m-%d %H:%M:%S
is apparently an iso8601-formatted date, I guess the T can be dropped and replaced by a space) you should not specify infer_datetime_format
(which does not make a difference with more common ones either apparently) and passing your own parser in just cripples performance. On the other hand, date_parser
does make a difference with not so standard day formats. Be sure to time before you optimize, as usual.
Replace <url>
with your own link
<script>function fbs_click() {u=location.href;t=document.title;window.open('http://www.facebook.com/sharer.php?u='+encodeURIComponent(u)+'&t='+encodeURIComponent(t),'sharer','toolbar=0,status=0,width=626,height=436');return false;}</script><style> html .fb_share_link { padding:2px 0 0 20px; height:16px; background:url(http://static.ak.facebook.com/images/share/facebook_share_icon.gif?6:26981) no-repeat top left; }</style><a rel="nofollow" href="http://www.facebook.com/share.php?u=<;url>" onclick="return fbs_click()" target="_blank" class="fb_share_link">Share on Facebook</a>
This is easily extendable and readable:
switch (foo) {
case 1:
case 3:
case 12:
// ...
break
case 4:
case 5:
case 6:
// something else
break
}
But not necessarily easier :)
Try copying the src and web folder in different folder location and create New project with existing sources in Netbeans. This should work. Or remove the nbproject folder as well before importing.
perhaps this may be an alternative for you.
<input name="chkproperty" onchange="($(this).prop('checked') ? $(this).val(true) : $(this).val(false))" type="checkbox" value="true" />`
It's better (but wordier) to use:
var element = document.getElementById('something');
if (element != null && element.value == '') {
}
Please note, the first version of my answer was wrong:
var element = document.getElementById('something');
if (typeof element !== "undefined" && element.value == '') {
}
because getElementById()
always return an object (null object if not found) and checking for"undefined"
would never return a false
, as typeof null !== "undefined"
is still true
.
My server is CentOS 7, and I install tomcat by:
sudo yum install tomcat
sudo yum install tomcat-webapps tomcat-admin-webapps
I found my webapps folders in:
/usr/share/tomcat/
and
/var/lib/tomcat/
If mongodb is installed via Homebrew the default location is:
/usr/local/var/mongodb
See the answer from @simonbogarde for the location of other interesting files that are different when using Homebrew.
To understand why, you need to know that the CPU represents signed numbers using the two's complement (maybe not all, but many).
byte n = 1; //0000 0001 = 1
n = ~n + 1; //1111 1110 + 0000 0001 = 1111 1111 = -1
And also, that the type int and unsigned int can be of different sized depending on your CPU. When doing specific stuff like this:
#include <stdint.h>
int8_t ibyte;
uint8_t ubyte;
int16_t iword;
//......
If DB is SQL Server then
select Convert(varchar(10),CONVERT(date,YourDateColumn,106),103)
The way to convert a string to a number is with Number
, not parseFloat
.
Number('1234') // 1234
Number('9BX9') // NaN
You can also use the unary plus operator if you like shorthand:
+'1234' // 1234
+'9BX9' // NaN
Be careful when checking against NaN (the operator ===
and !==
don't work as expected with NaN
). Use:
isNaN(+maybeNumber) // returns true if NaN, otherwise false
If all the cases have the same length you can use
switch (mystring.SubString(0,Math.Min(len, mystring.Length)))
.
Another option is to have a function that will return categoryId based on the string and switch on the id.
I did this way:
Add this method to check whether email address is valid or not:
private boolean isValidEmailId(String email){
return Pattern.compile("^(([\\w-]+\\.)+[\\w-]+|([a-zA-Z]{1}|[\\w-]{2,}))@"
+ "((([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\\.([0-1]?"
+ "[0-9]{1,2}|25[0-5]|2[0-4][0-9])\\."
+ "([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\\.([0-1]?"
+ "[0-9]{1,2}|25[0-5]|2[0-4][0-9])){1}|"
+ "([a-zA-Z]+[\\w-]+\\.)+[a-zA-Z]{2,4})$").matcher(email).matches();
}
Now check with String of EditText:
if(isValidEmailId(edtEmailId.getText().toString().trim())){
Toast.makeText(getApplicationContext(), "Valid Email Address.", Toast.LENGTH_SHORT).show();
}else{
Toast.makeText(getApplicationContext(), "InValid Email Address.", Toast.LENGTH_SHORT).show();
}
Done
I think this is the easiest answer.
Use a "Name" to reference the offset.
Say you want to sum a column (Column A) all the way to, but not including, the cell holding the summation (say Cell A100); do this:
(I assume you are using A1 referencing when creating the Name; R1C1 can subsequently be switched to)
=SUM(A1:OneCellAbove)
This worked for me :
import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.format.annotation.DateTimeFormat.ISO;
@Column(name="end_date", nullable = false)
@DateTimeFormat(iso = ISO.DATE_TIME)
@JsonFormat(pattern = "yyyy-MM-dd HH:mm")
private LocalDateTime endDate;
Take attention on -e ssh and jenkins@localhost: in next example:
rsync -r -e ssh --chown=jenkins:admin --exclude .git --exclude Jenkinsfile --delete ./ jenkins@localhost:/home/admin/web/xxx/public
That helped me
P.S. Today, i realized that when you change (add) jenkins user to some group, permission will apply after slave (agent) restart. And my solution (-e ssh and jenkins@localhost:) need only when you can't restart agent/server.
Your ngClick
is correct; you just need the right service. $location
is what you're looking for. Check out the docs for the full details, but the solution to your specific question is this:
$location.path( '/new-page.html' );
The $location
service will add the hash (#) if it's appropriate based on your current settings and ensure no page reload occurs.
You could also do something more flexible with a directive if you so chose:
.directive( 'goClick', function ( $location ) {
return function ( scope, element, attrs ) {
var path;
attrs.$observe( 'goClick', function (val) {
path = val;
});
element.bind( 'click', function () {
scope.$apply( function () {
$location.path( path );
});
});
};
});
And then you could use it on anything:
<button go-click="/go/to/this">Click!</button>
There are many ways to improve this directive; it's merely to show what could be done. Here's a Plunker demonstrating it in action: http://plnkr.co/edit/870E3psx7NhsvJ4mNcd2?p=preview.
If inserting 'too much data' fails due to the max_allowed_packet
setting of the database server, the following warning is raised:
SQLSTATE[08S01]: Communication link failure: 1153 Got a packet bigger than
'max_allowed_packet' bytes
If this warning is catched as exception (due to the set error handler), the database connection is (probably) lost but the application doesn't know about this (failing inserts can have several causes). The next query in line, which can be as simple as:
SELECT 1 FROM DUAL
Will then fail with the error this SO-question started:
Error while sending QUERY packet. PID=18486
Simple test script to reproduce my explanation, try it with and without the error handler to see the difference in impact:
set_error_handler(function($errno, $errstr, $errfile, $errline, array $errcontext) {
// error was suppressed with the @-operator
if (0 === error_reporting()) {
return false;
}
throw new ErrorException($errstr, 0, $errno, $errfile, $errline);
});
try
{
// $oDb is instance of PDO
var_dump($oDb->query('SELECT 1 FROM DUAL'));
$oStatement = $oDb->prepare('INSERT INTO `test` (`id`, `message`) VALUES (NULL, :message);');
$oStatement->bindParam(':message', $largetext, PDO::PARAM_STR);
var_dump($oStatement->execute());
}
catch(Exception $e)
{
$e->getMessage();
}
var_dump($oDb->query('SELECT 2 FROM DUAL'));
First and foremost thing is to add .gitignore
file in my-app. Like so in image below.
and next add this in your .gitignore
file
/node_modules
You can also add others files too to ignore them to be pushed on github. Here are some more files kept in .gitignore. You can add them according to your requirement. #
is just a way to comment in .gitignore file.
# See https://help.github.com/ignore-files/ for more about ignoring files.
# dependencies
/node_modules
# testing
/coverage
# production
/build
# misc
.DS_Store
.env.local
.env.development.local
.env.test.local
.env.production.local
npm-debug.log*
yarn-debug.log*
yarn-error.log*
Here is what you can do using jquery:
$('#A_ID').click(function (e) { //#A_ID is an example. Use the id of your Anchor
$('html, body').animate({
scrollTop: $('#DIV_ID').offset().top - 20 //#DIV_ID is an example. Use the id of your destination on the page
}, 'slow');
});
I made something like this to my project
function adjustLine(from, to, line){_x000D_
_x000D_
var fT = from.offsetTop + from.offsetHeight/2;_x000D_
var tT = to.offsetTop + to.offsetHeight/2;_x000D_
var fL = from.offsetLeft + from.offsetWidth/2;_x000D_
var tL = to.offsetLeft + to.offsetWidth/2;_x000D_
_x000D_
var CA = Math.abs(tT - fT);_x000D_
var CO = Math.abs(tL - fL);_x000D_
var H = Math.sqrt(CA*CA + CO*CO);_x000D_
var ANG = 180 / Math.PI * Math.acos( CA/H );_x000D_
_x000D_
if(tT > fT){_x000D_
var top = (tT-fT)/2 + fT;_x000D_
}else{_x000D_
var top = (fT-tT)/2 + tT;_x000D_
}_x000D_
if(tL > fL){_x000D_
var left = (tL-fL)/2 + fL;_x000D_
}else{_x000D_
var left = (fL-tL)/2 + tL;_x000D_
}_x000D_
_x000D_
if(( fT < tT && fL < tL) || ( tT < fT && tL < fL) || (fT > tT && fL > tL) || (tT > fT && tL > fL)){_x000D_
ANG *= -1;_x000D_
}_x000D_
top-= H/2;_x000D_
_x000D_
line.style["-webkit-transform"] = 'rotate('+ ANG +'deg)';_x000D_
line.style["-moz-transform"] = 'rotate('+ ANG +'deg)';_x000D_
line.style["-ms-transform"] = 'rotate('+ ANG +'deg)';_x000D_
line.style["-o-transform"] = 'rotate('+ ANG +'deg)';_x000D_
line.style["-transform"] = 'rotate('+ ANG +'deg)';_x000D_
line.style.top = top+'px';_x000D_
line.style.left = left+'px';_x000D_
line.style.height = H + 'px';_x000D_
}_x000D_
adjustLine(_x000D_
document.getElementById('div1'), _x000D_
document.getElementById('div2'),_x000D_
document.getElementById('line')_x000D_
);
_x000D_
#content{_x000D_
position:relative;_x000D_
}_x000D_
.mydiv{_x000D_
border:1px solid #368ABB;_x000D_
background-color:#43A4DC;_x000D_
position:absolute;_x000D_
}_x000D_
.mydiv:after{_x000D_
content:no-close-quote;_x000D_
position:absolute;_x000D_
top:50%;_x000D_
left:50%;_x000D_
background-color:black;_x000D_
width:4px;_x000D_
height:4px;_x000D_
border-radius:50%;_x000D_
margin-left:-2px;_x000D_
margin-top:-2px;_x000D_
}_x000D_
#div1{_x000D_
left:200px;_x000D_
top:200px;_x000D_
width:50px;_x000D_
height:50px;_x000D_
}_x000D_
#div2{_x000D_
left:20px;_x000D_
top:20px;_x000D_
width:50px;_x000D_
height:40px;_x000D_
}_x000D_
#line{_x000D_
position:absolute;_x000D_
width:1px;_x000D_
background-color:red;_x000D_
}
_x000D_
_x000D_
_x000D_
<div id="content">_x000D_
<div id="div1" class="mydiv"></div>_x000D_
<div id="div2" class="mydiv"></div>_x000D_
<div id="line"></div>_x000D_
</div>_x000D_
_x000D_
I use a ternary in a printf like this:
printf("%s\n", b?"true":"false");
If you macro it :
B2S(b) ((b)?"true":"false")
then you need to make sure whatever you pass in as 'b'
doesn't have any side effects. And don't forget the brackets around the 'b'
as you could get compile errors.
I have at least one situation where the data is not automatically cleaned up, which would eventually lead to "Out of Memory" errors. In a UserForm I had:
Public mainPicture As StdPicture
...
mainPicture = LoadPicture(PAGE_FILE)
When UserForm was destroyed (after Unload Me
) the memory allocated for the data loaded in the mainPicture
was not being de-allocated. I had to add an explicit
mainPicture = Nothing
in the terminate event.
This gets part way there. There is no ActualFontSize property but there is an ActualHeight and that would relate to the FontSize. Right now this only sizes for the original render. I could not figure out how to register the Converter as resize event. Actually maybe need to register the FontSize as a resize event. Please don't mark me down for an incomplete answer. I could not put code sample in a comment.
<Window.Resources>
<local:WidthConverter x:Key="widthConverter"/>
</Window.Resources>
<Grid>
<Grid>
<StackPanel VerticalAlignment="Center" Orientation="Vertical" >
<Viewbox Margin="100,0,100,0">
<TextBlock x:Name="headerText" Text="Lorem ipsum dolor" Foreground="Black"/>
</Viewbox>
<TextBlock Margin="150,0,150,0" FontSize="{Binding ElementName=headerText, Path=ActualHeight, Converter={StaticResource widthConverter}}" x:Name="subHeaderText" Text="Lorem ipsum dolor, Lorem ipsum dolor, lorem isum dolor, Lorem ipsum dolor, Lorem ipsum dolor, lorem isum dolor, " TextWrapping="Wrap" Foreground="Gray" />
</StackPanel>
</Grid>
</Grid>
Converter
[ValueConversion(typeof(double), typeof(double))]
public class WidthConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
double width = (double)value*.7;
return width; // columnsCount;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
Perhps this is what you are looking for.
var pos = 0;
window.onload = function start() {
setTimeout(slide, 3000);
}
function slide() {
pos -= 600;
if (pos === -2400)
pos = 0;
document.getElementById('container').style.marginLeft= pos + "px";
setTimeout(slide, 3000);
}
Install nmap,
sudo apt-get install nmap
then
nmap -sP 192.168.1.*
or more commonly
nmap -sn 192.168.1.0/24
will scan the entire .1 to .254 range
This does a simple ping scan in the entire subnet to see which hosts are online.
That means that the definition of your function is not present in your program. You forgot to add that one.cpp
to your program.
What "to add" means in this case depends on your build environment and its terminology. In MSVC (since you are apparently use MSVC) you'd have to add one.cpp
to the project.
In more practical terms, applicable to all typical build methodologies, when you link you program, the object file created form one.cpp
is missing.
Whether to use comma or period for the decimal separator is entirely up to the browser. The browser makes it decision based on the locale of the operating system or browser, or some browsers take hints from the website. I made a browser comparison chart showing how different browsers support handle different localization methods. Safari being the only browser that handle commas and periods interchangeably.
Basically, you as a web author cannot really control this. Some work-arounds involves using two input fields with integers. This allows every user to input the data as yo expect. Its not particular sexy, but it will work in every case for all users.
Example:
$number = 4;
print "You have the {$number}th edition book";
//output: "You have the 4th edition book";
Without curly braces PHP would try to find a variable named $numberth
, that doesn't exist!
The cross-browser solution without DOM manipulation given above does not work because it gives the first matching rule, not the last. The last matching rule is the one which applies. Here is a working version:
function getStyleRuleValue(style, selector) {
let value = null;
for (let i = 0; i < document.styleSheets.length; i++) {
const mysheet = document.styleSheets[i];
const myrules = mysheet.cssRules ? mysheet.cssRules : mysheet.rules;
for (let j = 0; j < myrules.length; j++) {
if (myrules[j].selectorText &&
myrules[j].selectorText.toLowerCase() === selector) {
value = myrules[j].style[style];
}
}
}
return value;
}
However, this simple search will not work in case of complex selectors.
On Windows 2012 R2, you can't install Visual Studio or SDK. You can use powershell to register assemblies into GAC. It didn't need any special installation for me.
Set-location "C:\Temp"
[System.Reflection.Assembly]::Load("System.EnterpriseServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")
$publish = New-Object System.EnterpriseServices.Internal.Publish
$publish.GacInstall("C:\Temp\myGacLibrary.dll")
If you need to get the name and PublicKeyToken see this question.
I think this would be more efficient:
function toBinString (arr) {
var uarr = new Uint8Array(arr.map(function(x){return parseInt(x,2)}));
var strings = [], chunksize = 0xffff;
// There is a maximum stack size. We cannot call String.fromCharCode with as many arguments as we want
for (var i=0; i*chunksize < uarr.length; i++){
strings.push(String.fromCharCode.apply(null, uarr.subarray(i*chunksize, (i+1)*chunksize)));
}
return strings.join('');
}
You can use scalar multiplication to modify each element in your vector.
> r <- 0:10
> r <- r * 2
> r
[1] 0 2 4 6 8 10 12 14 16 18 20
or
> r <- 0:10 * 2
> r
[1] 0 2 4 6 8 10 12 14 16 18 20
$array = 1..5 | foreach { $false }
div[disabled]
{
pointer-events: none;
opacity: 0.6;
background: rgba(200, 54, 54, 0.5);
background-color: yellow;
filter: alpha(opacity=50);
zoom: 1;
-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";
-moz-opacity: 0.5;
-khtml-opacity: 0.5;
}
A text file does not have \0 at the end of lines. It has \n. \n is a character, not a string, so it must be enclosed in single quotes
if (c == '\n')
In addition, you can use sscanf
for some very simple scenarios, for example when you know exactly how many parts the string has and what it consists of. You can also parse the arguments on the fly. Do not use it for user inputs because the function will not report conversion errors.
Example:
char text[] = "1:22:300:4444:-5";
int i1, i2, i3, i4, i5;
sscanf(text, "%d:%d:%d:%d:%d", &i1, &i2, &i3, &i4, &i5);
printf("%d, %d, %d, %d, %d", i1, i2, i3, i4, i5);
Output:
1, 22, 300, 4444, -5
For anything more advanced, strtok() and strtok_r() are your best options, as mentioned in other answers.
It's important to distinguish between the content of cells, their display format, the data type read from cells by VBA, and the data type written to cells from VBA and how Excel automatically interprets this. (See e.g. this previous answer.) The relationship between these can be a bit complicated, because Excel will do things like interpret values of one type (e.g. string) as being a certain other data type (e.g. date) and then automatically change the display format based on this. Your safest bet it do everything explicitly and not to rely on this automatic stuff.
I ran your experiment and I don't get the same results as you do. My cell A1 stays a Date the whole time, and B1 stays 41575. So I can't answer your question #1. Results probably depend on how your Excel version/settings choose to automatically detect/change a cell's number format based on its content.
Question #2, "How can I ensure that a cell will return a date value": well, not sure what you mean by "return" a date value, but if you want it to contain a numerical value that is displayed as a date, based on what you write to it from VBA, then you can either:
Write to the cell a string value that you hope Excel will automatically interpret as a date and format as such. Cross fingers. Obviously this is not very robust. Or,
Write a numerical value to the cell from VBA (obviously a Date type is the intended type, but an Integer, Long, Single, or Double could do as well) and explicitly set the cells' number format to your desired date format using the .NumberFormat
property (or manually in Excel). This is much more robust.
If you want to check that existing cell contents can be displayed as a date, then here's a function that will help:
Function CellContentCanBeInterpretedAsADate(cell As Range) As Boolean
Dim d As Date
On Error Resume Next
d = CDate(cell.Value)
If Err.Number <> 0 Then
CellContentCanBeInterpretedAsADate = False
Else
CellContentCanBeInterpretedAsADate = True
End If
On Error GoTo 0
End Function
Example usage:
Dim cell As Range
Set cell = Range("A1")
If CellContentCanBeInterpretedAsADate(cell) Then
cell.NumberFormat = "mm/dd/yyyy hh:mm"
Else
cell.NumberFormat = "General"
End If
If I have understood your question correctly you want to display one particular cell of your populated datatable? This what I used to display the given cell in my DataGrid.
var s = dataGridView2.Rows[i].Cells[j].Value;
txt_Country.Text = s.ToString();
Hope this helps
This is a little tricky, the value you enter at keyboard, is a String value, so you have to pitch the first character with method line.chartAt(0)
where, 0 is the index of the first character, and store this value in a char variable as in char c= line.charAt(0)
now with the use of method isDigit()
and isLetter()
from class Character
you can differentiate between a Digit and Letter.
here is a code for your program:
import java.util.Scanner;
class Practice
{
public static void main(String[] args)
{
Scanner in = new Scanner(System.in);
System.out.println("Input a letter");
String line = in.nextLine();
char c = line.charAt(0);
if( Character.isDigit(c))
System.out.println(c +" Is a digit");
else if (Character.isLetter(c))
System.out.println(c +" Is a Letter");
}
}
Thx for the answer!
raiserror()
works fine but you shouldn't forget the return
statement otherwise the script continues without error! (hense the raiserror isn't a "throwerror" ;-)) and of course doing a rollback if necessary!
raiserror()
is nice to tell the person who executes the script that something went wrong.
Create a git clone of that includes your Subversion trunk, tags, and branches with
git svn clone http://svn.example.com/project -T trunk -b branches -t tags
The --stdlayout
option is a nice shortcut if your Subversion repository uses the typical structure:
git svn clone http://svn.example.com/project --stdlayout
Make your git repository ignore everything the subversion repo does:
git svn show-ignore >> .git/info/exclude
You should now be able to see all the Subversion branches on the git side:
git branch -r
Say the name of the branch in Subversion is waldo
. On the git side, you'd run
git checkout -b waldo-svn remotes/waldo
The -svn suffix is to avoid warnings of the form
warning: refname 'waldo' is ambiguous.
To update the git branch waldo-svn
, run
git checkout waldo-svn git svn rebase
To add a Subversion branch to a trunk-only clone, modify your git repository's .git/config
to contain
[svn-remote "svn-mybranch"] url = http://svn.example.com/project/branches/mybranch fetch = :refs/remotes/mybranch
You'll need to develop the habit of running
git svn fetch --fetch-all
to update all of what git svn
thinks are separate remotes. At this point, you can create and track branches as above. For example, to create a git branch that corresponds to mybranch, run
git checkout -b mybranch-svn remotes/mybranch
For the branches from which you intend to git svn dcommit
, keep their histories linear!
You may also be interested in reading an answer to a related question.
JSP 2.0 has a feature called "Tag Files", and you can write tags without external Java code and tld
. You need to create a .tag
file and put it in WEB-INF\tags
. You can even create a directory structure to package your tags.
For example:
/WEB-INF/tags/html/label.tag
<%@tag description="Rensders a label with required css class" pageEncoding="UTF-8"%>
<%@attribute name="name" required="true" description="The label"%>
<label class="control-label control-default" id="${name}Label">${name}</label>
Use it like
<%@ taglib prefix="h" tagdir="/WEB-INF/tags/html"%>
<h:label name="customer name" />
Also, you can read the tag body easily:
/WEB-INF/tags/html/bold.tag
<%@tag description="Bold tag" pageEncoding="UTF-8"%>
<b>
<jsp:doBody/>
</b>
Use it:
<%@ taglib prefix="h" tagdir="/WEB-INF/tags/bold"%>
<h:bold>Make me bold</h:bold>
The samples are very simple, but you can do lots of complicated tasks here. Please consider you can use other tags (for example: JSTL
which has controlling tags like if/forEcah/chosen
text manipulation like format/contains/uppercase
or even SQL tags select/update
), pass all kind parameters, for example Hashmap
, access session
, request
, ... in your tag file too.
Tag File are so easy developed as you did not need to restart the server when changing them, like JSP files. This makes them easy for development.
Even if you use a framework like Struts 2, which have lots of good tags, you may find that having your own tags can reduce your code a lot. You can pass your tag parameters to struts and this way customize your framework tag.
You can use tags not only to avoid Java, but also minimize your HTML codes. I myself try to review HTML code and build tags a lot as soon as I see code duplicates start in my pages.
(Even if you end up using Java in your JSP code, which I hope not, you can encapsulate that code in a tag.)
This issue is still open here: https://github.com/docker/compose/issues/2925
You can set hostname but it is not reachable from other containers. So it is mostly useless.
The double underscore. It mangles the name in such a way that it can't be accessed simply through __fieldName
from outside the class, which is what you want to begin with if they're to be private. (Though it's still not very hard to access the field.)
class Foo:
def __init__(self):
self.__privateField = 4;
print self.__privateField # yields 4 no problem
foo = Foo()
foo.__privateField
# AttributeError: Foo instance has no attribute '__privateField'
It will be accessible through _Foo__privateField
instead. But it screams "I'M PRIVATE DON'T TOUCH ME", which is better than nothing.
I wrestled with this myself. A nice trick is to use use the current thread to get a ClassLoader when in a static context. This will work in a Hadoop MapReduce as well. Other methods work when running locally, but return a null InputStream when used in a MapReduce.
public static InputStream getResource(String resource) throws Exception {
ClassLoader cl = Thread.currentThread().getContextClassLoader();
InputStream is = cl.getResourceAsStream(resource);
return is;
}
try this:
var result = from r in myDataTable.AsEnumerable()
where r.Field<string>("Name") != "n/a" &&
r.Field<string>("Name") != "" select r;
DataTable dtResult = result.CopyToDataTable();
For those looking for a solution. If you accidentally made pip
requirements with pip list
instead of pip freeze
, and want to convert into pip freeze format. I wrote this R script to do so.
library(tidyverse)
pip_list = read_lines("requirements.txt")
pip_freeze = pip_list %>%
str_replace_all(" \\(", "==") %>%
str_replace_all("\\)$", "")
pip_freeze %>% write_lines("requirements.txt")
You can do something like this:
import requests
import random
url = "https://images.pexels.com/photos/1308881/pexels-photo-1308881.jpeg? auto=compress&cs=tinysrgb&dpr=1&w=500"
name=random.randrange(1,1000)
filename=str(name)+".jpg"
response = requests.get(url)
if response.status_code.ok:
with open(filename,'w') as f:
f.write(response.content)
You don't add columns between other columns in SQL, you just add them. Where they're put is totally up to the DBMS. The right place to ensure that columns come out in the correct order is when you select
them.
In other words, if you want them in the order {name,colnew,qty,rate}
, you use:
select name, colnew, qty, rate from ...
With SQLite, you need to use alter table
, an example being:
alter table mytable add column colnew char(50)
To re-cap the question in the OP:
I am connecting [to a WCF service] using WCFStorm which is able to retrieve all the meta data properly, but when I call the actual method I get:
The provided URI scheme 'https' is invalid; expected 'http'. Parameter name: via
The WCFStorm tutorials addresses this issue in Working with IIS and SSL.
Their solution worked for me:
To fix the error, generate a client config that matches the wcf service configuration. The easiest way to do this is with Visual Studio.
Open Visual Studio and add a service reference to the service. VS will generate an app.config file that matches the service
Edit the app.config file so that it can be read by WCFStorm. Please see Loading Client App.config files. Ensure that the endpoint/@name and endpoint/@contract attributes match the values in wcfstorm.
Load the modified app.config to WCFStorm [using the Client Config toobar button].
Invoke the method. This time the method invocation will no longer fail
Item (1) last bullet in effect means to remove the namespace prefix that VS prepends to the endpoint contract attribute, by default "ServiceReference1"
<endpoint ... contract="ServiceReference1.ListsService" ... />
so in the app.config that you load into WCFStorm you want for ListsService:
<endpoint ... contract="ListsService" ... />
Using FilenameUtils
in Apache Commons IO :
String name1 = FilenameUtils.getName("/ab/cd/xyz.txt");
String name2 = FilenameUtils.getName("c:\\ab\\cd\\xyz.txt");
It's from the NeXTSTEP heritage.
There are several options and none of them are the official correct way and none of them are really incorrect, though they can convey different information to the computer and to others reading your code.
For the given example I think the clearest option would be to supply an identity default value, in this case do something like:
fooBar <- function(x, y=0) {
x + y
}
This is the shortest of the options shown so far and shortness can help readability (and sometimes even speed in execution). It is clear that what is being returned is the sum of x and y and you can see that y is not given a value that it will be 0 which when added to x will just result in x. Obviously if something more complicated than addition is used then a different identity value will be needed (if one exists).
One thing I really like about this approach is that it is clear what the default value is when using the args
function, or even looking at the help file (you don't need to scroll down to the details, it is right there in the usage).
The drawback to this method is when the default value is complex (requiring multiple lines of code), then it would probably reduce readability to try to put all that into the default value and the missing
or NULL
approaches become much more reasonable.
Some of the other differences between the methods will appear when the parameter is being passed down to another function, or when using the match.call
or sys.call
functions.
So I guess the "correct" method depends on what you plan to do with that particular argument and what information you want to convey to readers of your code.
This code will add an event listener to the default local Inbox, then take some action on incoming emails. You need to add that action in the code below.
Private WithEvents Items As Outlook.Items
Private Sub Application_Startup()
Dim olApp As Outlook.Application
Dim objNS As Outlook.NameSpace
Set olApp = Outlook.Application
Set objNS = olApp.GetNamespace("MAPI")
' default local Inbox
Set Items = objNS.GetDefaultFolder(olFolderInbox).Items
End Sub
Private Sub Items_ItemAdd(ByVal item As Object)
On Error Goto ErrorHandler
Dim Msg As Outlook.MailItem
If TypeName(item) = "MailItem" Then
Set Msg = item
' ******************
' do something here
' ******************
End If
ProgramExit:
Exit Sub
ErrorHandler:
MsgBox Err.Number & " - " & Err.Description
Resume ProgramExit
End Sub
After pasting the code in ThisOutlookSession
module, you must restart Outlook.
This is what I've been using. Haven't seen any issues.
destroy: function(){
this.remove();
this.unbind();
}
Using ".h" method is better But if you really want to include the .cpp file then make foo(int) static in foo.cpp
This will get your buttons and labels next to each other, at least. I believe the second part can't be done in css alone, and will need javascript. I found a page that might help you with that part as well, but I don't have time right now to try it out: http://www.webmasterworld.com/forum83/6942.htm
<style type="text/css">
.input input {
float: left;
}
.input label {
margin: 5px;
}
</style>
<div class="input radio">
<fieldset>
<legend>What color is the sky?</legend>
<input type="hidden" name="data[Submit][question]" value="" id="SubmitQuestion" />
<input type="radio" name="data[Submit][question]" id="SubmitQuestion1" value="1" />
<label for="SubmitQuestion1">A strange radient green.</label>
<input type="radio" name="data[Submit][question]" id="SubmitQuestion2" value="2" />
<label for="SubmitQuestion2">A dark gloomy orange</label>
<input type="radio" name="data[Submit][question]" id="SubmitQuestion3" value="3" />
<label for="SubmitQuestion3">A perfect glittering blue</label>
</fieldset>
</div>
Both answers are in the ballpark but neither is a complete answer.
MyClass.class.isInstance(obj)
is for checking an instance. It returns true when the parameter obj is non-null and can be cast to MyClass
without raising a ClassCastException
. In other words, obj is an instance of MyClass
or its subclasses.
MyClass.class.isAssignableFrom(Other.class)
will return true if MyClass
is the same as, or a superclass or superinterface of, Other
. Other
can be a class or an interface. It answers true if Other
can be converted to a MyClass
.
A little code to demonstrate:
public class NewMain
{
public static void main(String[] args)
{
NewMain nm = new NewMain();
nm.doit();
}
class A { }
class B extends A { }
public void doit()
{
A myA = new A();
B myB = new B();
A[] aArr = new A[0];
B[] bArr = new B[0];
System.out.println("b instanceof a: " + (myB instanceof A)); // true
System.out.println("b isInstance a: " + A.class.isInstance(myB)); //true
System.out.println("a isInstance b: " + B.class.isInstance(myA)); //false
System.out.println("b isAssignableFrom a: " + A.class.isAssignableFrom(B.class)); //true
System.out.println("a isAssignableFrom b: " + B.class.isAssignableFrom(A.class)); //false
System.out.println("bArr isInstance A: " + A.class.isInstance(bArr)); //false
System.out.println("bArr isInstance aArr: " + aArr.getClass().isInstance(bArr)); //true
System.out.println("bArr isAssignableFrom aArr: " + aArr.getClass().isAssignableFrom(bArr.getClass())); //true
}
}
Try this:
find /home/user/ -type f | xargs sed -i 's/a\.example\.com/b.example.com/g'
In case you want to ignore dot directories
find . \( ! -regex '.*/\..*' \) -type f | xargs sed -i 's/a\.example\.com/b.example.com/g'
Edit: escaped dots in search expression
This is what I use in my application:
static void Main()
{
bool mutexCreated = false;
System.Threading.Mutex mutex = new System.Threading.Mutex( true, @"Local\slimCODE.slimKEYS.exe", out mutexCreated );
if( !mutexCreated )
{
if( MessageBox.Show(
"slimKEYS is already running. Hotkeys cannot be shared between different instances. Are you sure you wish to run this second instance?",
"slimKEYS already running",
MessageBoxButtons.YesNo,
MessageBoxIcon.Question ) != DialogResult.Yes )
{
mutex.Close();
return;
}
}
// The usual stuff with Application.Run()
mutex.Close();
}
Since you already seem to have solved the basic pointer address display, here's how you would check the address of a double pointer:
char **a;
char *b;
char c = 'H';
b = &c;
a = &b;
You would be able to access the address of the double pointer a
by doing:
printf("a points at this memory location: %p", a);
printf("which points at this other memory location: %p", *a);
This is explained in the excellent free eBook ProGit. It assumes you already have a local Git repository and a remote one. To connect them use:
$ git remote
origin
$ git remote add pb git://github.com/paulboone/ticgit.git
$ git remote -v
origin git://github.com/schacon/ticgit.git
pb git://github.com/paulboone/ticgit.git
To push the data from the local repository to GitHub use:
$ git push pb master
If you have not setup a local and/or a remote repository yet, check out the help on GitHub and the previous chapters in the book.
SELECT COUNT(*) FROM information_schema.tables WHERE table_schema = 'database_name';
As @TechSpellBound suggested remove the quotes around the ? signs. Then add a space character at the end of each row in your concatenated string. Otherwise the entire query will be sent as (using only part of it as an example) : .... WHERE bookings.booking_end < date ?OR bookings.booking_start > date ?GROUP BY ....
The ?
and the OR
needs to be seperated by a space character. Do it wherever needed in the query string.
Please note that soultions written above removes only space. If you want also to remove tab or new line use stri_replace_all_charclass
from stringi
package.
library(stringi)
stri_replace_all_charclass(" ala \t ma \n kota ", "\\p{WHITE_SPACE}", "")
## [1] "alamakota"
If you're looking to find both variations of the square brackets at the same time, you can use the following pattern which defines a range of either the [
sign or the ]
sign: /[\[\]]/
If you call your classes tests Maven seems to run them automatically, at least they did for me. Rename the classes and Maven will just go through to verification without running them.
image = (ImageView) findViewById(R.id.imageID);
MarginLayoutParams marginParams = new MarginLayoutParams(image.getLayoutParams());
marginParams.setMargins(left_margin, top_margin, right_margin, bottom_margin);
RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(marginParams);
image.setLayoutParams(layoutParams);
I had the following problem:
I had a Android phone without drivers, and it could not be recognized by the Windows 8.1. Neither as phone, neither as USB storage device.
I searched Device manager.
I opened Device manager, I right click on Android Phone->Android Composite Interface.
I selected "Update Driver Software"
I choose "Browse My Computer for Driver Software"
Then I choose "Let me pick from a list of devices"
I selected "USB Composite Device"
A new USB device is added to the list, and I can connect to my phone using adb and Android SDK.
Also I can use the phone as storage device.
Good luck
val df = Seq(
("1001", "1007"),
("1002", null),
("1003", "1005"),
(null, "1006")
).toDF("user_id", "friend_id")
Data is:
+-------+---------+
|user_id|friend_id|
+-------+---------+
| 1001| 1007|
| 1002| null|
| 1003| 1005|
| null| 1006|
+-------+---------+
Drop rows containing any null or NaN values in the specified columns of the Seq:
df.na.drop(Seq("friend_id"))
.show()
Output:
+-------+---------+
|user_id|friend_id|
+-------+---------+
| 1001| 1007|
| 1003| 1005|
| null| 1006|
+-------+---------+
If do not specify columns, drop row as long as any column of a row contains null or NaN values:
df.na.drop()
.show()
Output:
+-------+---------+
|user_id|friend_id|
+-------+---------+
| 1001| 1007|
| 1003| 1005|
+-------+---------+
$('#demolist li').on('click', function(){
$('#datebox').val($(this).text());
});
When reading sp_lock information, use the OBJECT_NAME( ) function to get the name of a table from its ID number, for example:
SELECT object_name(16003073)
EDIT :
There is another proc provided by microsoft which reports objects without the ID translation : http://support.microsoft.com/kb/q255596/
I implemented something like this, using pickle for persistance and using sha1 for short almost-certainly-unique IDs. Basically the cache hashed the code of the function and the hist of arguments to get a sha1 then looked for a file with that sha1 in the name. If it existed, it opened it and returned the result; if not, it calls the function and saves the result (optionally only saving if it took a certain amount of time to process).
That said, I'd swear I found an existing module that did this and find myself here trying to find that module... The closest I can find is this, which looks about right: http://chase-seibert.github.io/blog/2011/11/23/pythondjango-disk-based-caching-decorator.html
The only problem I see with that is it wouldn't work well for large inputs since it hashes str(arg), which isn't unique for giant arrays.
It would be nice if there were a unique_hash() protocol that had a class return a secure hash of its contents. I basically manually implemented that for the types I cared about.
You CAN use UTF-8 in the POST request, all you need is to specify the charset in your request.
You should use this request:
curl -X POST -H "Content-Type: application/x-www-form-urlencoded; charset=utf-8" --data-ascii "content=derinhält&date=asdf" http://myserverurl.com/api/v1/somemethod
Don't think anyone has mentioned it yet, but if you are sure the data won't change underneath you, you may want to also apply the NoLock hint to ensure it is not blocked when reading.
SELECT CASE WHEN EXISTS (SELECT 1
FROM dbo.[YourTable] WITH (NOLOCK)
WHERE [YourColumn] = [YourValue])
THEN CAST (1 AS BIT)
ELSE CAST (0 AS BIT) END
Extract (refactor) your statements. And use the magic of and
and or
to decide when to short-circuit.
def a():
try: # a code
except: pass # or raise
else: return True
def b():
try: # b code
except: pass # or raise
else: return True
def c():
try: # c code
except: pass # or raise
else: return True
def d():
try: # d code
except: pass # or raise
else: return True
def main():
try:
a() and b() or c() or d()
except:
pass
An interface is used for polymorphism, which applies to Objects, not types. Therefore (as already noted) it makes no sense to have an static interface member.
Starting from Rob's answer, I am currently using the following syntax.Since the question has received a lot of attention,I decided to share it with you :
var requrl = '@Url.Action("Action", "Controller", null, Request.Url.Scheme, null)';
$.ajax({
type: "POST",
url: requrl,
data: "{queryString:'" + searchVal + "'}",
contentType: "application/json; charset=utf-8",
dataType: "html",
success: function (data) {
alert("here" + data.d.toString());
}
});
If you have more files in your folder, you can use the below piped command I found in unix stackexchange.
find /some/dir/ -type f -print0 | xargs -0 shuf -e -n 8 -z | xargs -0 cp -vt /target/dir/
Here I wanted to copy the files, but if you want to move files or do something else, just change the last command where I have used cp
.
The solution is the /Y
switch:
xcopy "C:\Users\ADMIN\Desktop\*.*" "D:\Backup\" /K /D /H /Y
I think the easiest way is checking for this condition:
$('.abc:checked').length == $('.abc').length
You could do it every time a new checkbox is checked:
$(".abc").change(function(){
if ($('.abc:checked').length == $('.abc').length) {
//do something
}
});
Tiff images can be displayed directly onto IE and safari only.. no support of tiff images on chrome and firefox. you can encode the image and then display it on browser by decoding the encoded image to some other format. Hope this works for you
If you are getting such error, the only reason could be you using a Distribution profile rather than a development profile in Xcode or a missing Entitlement property. If you are not using the Entitlements.plist, then the only possible error could be the app is getting packaged with a distribution profile. You could verify this confirming the build logs. To change this, go to Build Setting of the project and verify Code Signing Entity setting. For debugging to work, this setting should be a developer profile for the configuration that you are currently using.
https://developer.apple.com/library/ios/#qa/qa1682/_index.html
For instant results, delete all mobile provisioning profiles from xcode and install the developer profile that you intend to use.
(It would really have been nice if you'd mentioned which Color
type you were interested in to start with...)
One simple way of doing this is to just build up a dictionary via reflection:
public static class Colors
{
private static readonly Dictionary<string, Color> dictionary =
typeof(Color).GetProperties(BindingFlags.Public |
BindingFlags.Static)
.Where(prop => prop.PropertyType == typeof(Color))
.ToDictionary(prop => prop.Name,
prop => (Color) prop.GetValue(null, null)));
public static Color FromName(string name)
{
// Adjust behaviour for lookup failure etc
return dictionary[name];
}
}
That will be relatively slow for the first lookup (while it uses reflection to find all the properties) but should be very quick after that.
If you want it to be case-insensitive, you can pass in something like StringComparer.OrdinalIgnoreCase
as an extra argument in the ToDictionary
call. You can easily add TryParse
etc methods should you wish.
Of course, if you only need this in one place, don't bother with a separate class etc :)
While the above most upvoted answers definitely work, I'd suggest using a slightly different approach in some cases.
If your class has multiple properties with always the same attribute and you want to get those attributes sorted into a dictionary, here is how:
var dict = typeof(Book).GetProperties().ToDictionary(p => p.Name, p => p.GetCustomAttributes(typeof(AuthorName), false).Select(a => (AuthorName)a).FirstOrDefault());
This still uses cast but ensures that the cast will always work as you will only get the custom attributes of the type "AuthorName". If you had multiple Attributes above answers would get a cast exception.
if you want to access table cell
WebElement thirdCell = driver.findElement(By.Xpath("//table/tbody/tr[2]/td[1]"));
If you want to access nested table cell -
WebElement thirdCell = driver.findElement(By.Xpath("//table/tbody/tr[2]/td[2]"+//table/tbody/tr[1]/td[2]));
For more details visit this Tutorial
With jQuery, never use inline onclick
javascript. Keep it unobtrusive. Do this instead, and remove the onclick
completely.
Also, note the use of the :checked
pseudo selector in the last line. The reason for this is because once the page is loaded, the html and the actual state of the form element can be different. Open a web inspector and you can click on the other radio button and the HTML will still show the first one is checked. The :checked
selector instead filters elements that are actually checked, regardless of what the html started as.
$('button').click(function() {
alert($('input[name="myname"][value="b"]').length);
$('input[name="myname"][value="b"]').attr('checked','checked');
$('#b').attr('checked',true);
alert($('input[name="myname"]:checked').val());
});
The content length is just a HTTP header. You cannot trust it. Just read everything you can from the stream.
Available is definitely wrong. It's just the number of bytes that can be read without blocking.
Another issue is your resource handling. Closing the stream has to happen in any case. try/catch/finally will do that.
# Preface: File is json with contents: {'name': 'Android', 'status': 'ERROR'}
import boto3
import io
s3 = boto3.resource('s3')
obj = s3.Object('my-bucket', 'key-to-file.json')
data = io.BytesIO()
obj.download_fileobj(data)
# object is now a bytes string, Converting it to a dict:
new_dict = json.loads(data.getvalue().decode("utf-8"))
print(new_dict['status'])
# Should print "Error"
Either that as suggested by Lasse V. Karlsen, or set up a loop in your service that will wait for a debugger to attach. The simplest is
while (!Debugger.IsAttached)
{
Thread.Sleep(1000);
}
... continue with code
That way you can start the service and inside Visual Studio you choose "Attach to Process..." and attach to your service which then will resume normal exution.
If you give your table a unique id, its easier:
<div id="ctl00_ContentPlaceHolder1_Jobs_dlItems_ctl01_a"
onmouseup="checkMultipleSelection(this,event);">
<table id="ctl00_ContentPlaceHolder1_Jobs_dlItems_ctl01_a_table"
cellpadding="0" cellspacing="0" border="0" width="100%">
<tr>
<td style="width:50px; text-align:left;">09:15 AM</td>
<td style="width:50px; text-align:left;">Item001</td>
<td style="width:50px; text-align:left;">10</td>
<td style="width:50px; text-align:left;">Address1</td>
<td style="width:50px; text-align:left;">46545465</td>
<td style="width:50px; text-align:left;">ref1</td>
</tr>
</table>
</div>
var multiselect =
document.getElementById(
'ctl00_ContentPlaceHolder1_Jobs_dlItems_ctl01_a_table'
).rows[0].cells,
timeXaddr = [multiselect[0].innerHTML, multiselect[2].innerHTML];
//=> timeXaddr now an array containing ['09:15 AM', 'Address1'];
FYI, after reading this thread, I took a look at my installed programs and found that somehow, shortly after upgrading to Windows 10 (possibly/probably? unrelated), an ASK search app was installed as well as a Chrome extension (Windows was kind enough to remind to check that). Since removing, I have not have the f.txt issue.
Unsigned int can be converted to signed (or vice-versa) by simple expression as shown below :
unsigned int z;
int y=5;
z= (unsigned int)y;
Though not targeted to the question, you would like to read following links :
I got the same error, and fixed it with the following PHP in my back-end script:
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: GET, POST');
header("Access-Control-Allow-Headers: X-Requested-With");
After trying to find a solution that handled every circumstance (options for animating the scroll, padding around the object once it scrolls into view, works even in obscure circumstances such as in an iframe), I finally ended up writing my own solution to this. Since it seems to work when many other solutions failed, I thought I'd share it:
function scrollIntoViewIfNeeded($target, options) {
var options = options ? options : {},
$win = $($target[0].ownerDocument.defaultView), //get the window object of the $target, don't use "window" because the element could possibly be in a different iframe than the one calling the function
$container = options.$container ? options.$container : $win,
padding = options.padding ? options.padding : 20,
elemTop = $target.offset().top,
elemHeight = $target.outerHeight(),
containerTop = $container.scrollTop(),
//Everything past this point is used only to get the container's visible height, which is needed to do this accurately
containerHeight = $container.outerHeight(),
winTop = $win.scrollTop(),
winBot = winTop + $win.height(),
containerVisibleTop = containerTop < winTop ? winTop : containerTop,
containerVisibleBottom = containerTop + containerHeight > winBot ? winBot : containerTop + containerHeight,
containerVisibleHeight = containerVisibleBottom - containerVisibleTop;
if (elemTop < containerTop) {
//scroll up
if (options.instant) {
$container.scrollTop(elemTop - padding);
} else {
$container.animate({scrollTop: elemTop - padding}, options.animationOptions);
}
} else if (elemTop + elemHeight > containerTop + containerVisibleHeight) {
//scroll down
if (options.instant) {
$container.scrollTop(elemTop + elemHeight - containerVisibleHeight + padding);
} else {
$container.animate({scrollTop: elemTop + elemHeight - containerVisibleHeight + padding}, options.animationOptions);
}
}
}
$target
is a jQuery object containing the object you wish to scroll into view if needed.
options
(optional) can contain the following options passed in an object:
options.$container
- a jQuery object pointing to the containing element of $target (in other words, the element in the dom with the scrollbars). Defaults to the window that contains the $target element and is smart enough to select an iframe window. Remember to include the $ in the property name.
options.padding
- the padding in pixels to add above or below the object when it is scrolled into view. This way it is not right against the edge of the window. Defaults to 20.
options.instant
- if set to true, jQuery animate will not be used and the scroll will instantly pop to the correct location. Defaults to false.
options.animationOptions
- any jQuery options you wish to pass to the jQuery animate function (see http://api.jquery.com/animate/). With this, you can change the duration of the animation or have a callback function executed when the scrolling is complete. This only works if options.instant
is set to false. If you need to have an instant animation but with a callback, set options.animationOptions.duration = 0
instead of using options.instant = true
.
If you use EclipseLink instead of Hibernate you can optimize your queries by "query hints". See this article from the Eclipse Wiki: EclipseLink/Examples/JPA/QueryOptimization.
There is a chapter about "Joined Reading".
My problem was with adding the
<link rel="stylesheet" href="bower_components/font-awesome/css/font-awesome.min.css">
inside a
<!-- build:css assets/styles/main.css -->
<!-- endbuild -->
tag
I fixed it by placing it outside the tag.
Have a look:
Syntax (Via Composer):
composer create-project laravel/laravel {directory} 4.2 --prefer-dist
Example:
composer create-project laravel/laravel my_laravel_dir 4.2
Where 4.2 is your version of laravel.
Note: It will take the latest version of Laravel automatically If you will not provide any version.
The key to this is examining any information you recieve and then display and/or use in code on the server. Get/Post form variables if they contain javascript that you store and later redisplay is a security risk. As are any thing that gets concatenated unexamined into a sql statement you run.
One potential gotcha to watch for are attacks that mess with the character encoding. For instance if I submit a form with utf-8 character set but you store and later display in iso-8859-1 latin with no translation then I might be able to sneak something past your validator. The easiest way to handle this is to always display and store in the same character set. utf-8 is usually a good choice. Never depend on the browser to do the right thing for you in this case. Set explicit character sets and examine the character sets you recieve and do a translation to the expected storage set before you validate it.
I've written a simple recursive function that generates file names like Windows does, by appending a sequence number prior to the file extension.
Given a desired file path of C:\MyDir\MyFile.txt
, and the file already exists, it returns a final file path of C:\MyDir\MyFile_1.txt
.
It is called like this:
var desiredPath = @"C:\MyDir\MyFile.txt";
var finalPath = UniqueFileName(desiredPath);
private static string UniqueFileName(string path, int count = 0)
{
if (count == 0)
{
if (!File.Exists(path))
{
return path;
}
}
else
{
var candidatePath = string.Format(
@"{0}\{1}_{2}{3}",
Path.GetDirectoryName(path),
Path.GetFileNameWithoutExtension(path),
count,
Path.GetExtension(path));
if (!File.Exists(candidatePath))
{
return candidatePath;
}
}
count++;
return UniqueFileName(path, count);
}
If swfobject
won't suffice, or you need to create something a little more bespoke, try this:
var hasFlash = false;
try {
hasFlash = Boolean(new ActiveXObject('ShockwaveFlash.ShockwaveFlash'));
} catch(exception) {
hasFlash = ('undefined' != typeof navigator.mimeTypes['application/x-shockwave-flash']);
}
It works with 7 and 8.
For me - here is a less confusing way of doing the socket.setTimeout
var request=require('https').get(
url
,function(response){
var r='';
response.on('data',function(chunk){
r+=chunk;
});
response.on('end',function(){
console.dir(r); //end up here if everything is good!
});
}).on('error',function(e){
console.dir(e.message); //end up here if the result returns an error
});
request.on('error',function(e){
console.dir(e); //end up here if a timeout
});
request.on('socket',function(socket){
socket.setTimeout(1000,function(){
request.abort(); //causes error event ?
});
});
Some of the anwsers above, don't work well when rotating device.
Try:
CGRect imageContent = self.myUIImage.bounds;
CGFloat imageWidth = imageContent.size.width;
CGFloat imageHeight = imageContent.size.height;
Sorry for awakening an old question like this. But I think what the original author wanted as an answer was:
You need to force your program to make the graphic update after you make the change to the textbox1. You can do that by invoking Update();
textBox1.Text += "\r\nThread Sleeps!";
textBox1.Update();
System.Threading.Thread.Sleep(4000);
textBox1.Text += "\r\nThread awakens!";
textBox1.Update();
Normally this will be done automatically when the thread is done.
Ex, you press a button, changes are made to the text, thread dies, and then .Update()
is fired and you see the changes.
(I'm not an expert so I cant really tell you when its fired, but its something similar to this any way.)
In this case, you make a change, pause the thread, and then change the text again, and when the thread finally dies the .Update()
is fired. This resulting in you only seeing the last change made to the text.
You would experience the same issue if you had a long execution between the text changes.
Add new column to Table
ALTER TABLE [table]
ADD Column1 Datatype
E.g
ALTER TABLE [test]
ADD ID Int
If User wants to make it auto incremented then
ALTER TABLE [test]
ADD ID Int IDENTITY(1,1) NOT NULL
When called multiple times in a single batch, rand() returns the same number.
I'd suggest using convert(varbinary
,newid()
) as the seed argument:
SELECT table_name, 1.0 + floor(14 * RAND(convert(varbinary, newid()))) magic_number
FROM information_schema.tables
newid()
is guaranteed to return a different value each time it's called, even within the same batch, so using it as a seed will prompt rand() to give a different value each time.
Edited to get a random whole number from 1 to 14.
As has been suggested, using the string.format method is nice and simple and very readable.
In vb.net the " + " is used for addition and the " & " is used for string concatenation.
In your example:
MsgBox("Variable = " + variable)
becomes:
MsgBox("Variable = " & variable)
I may have been a bit quick answering this as it appears these operators can both be used for concatenation, but recommended use is the "&", source http://msdn.microsoft.com/en-us/library/te2585xw(v=VS.100).aspx
maybe call
variable.ToString()
update:
Use string interpolation (vs2015 onwards I believe):
MsgBox($"Variable = {variable}")
if it is becoming repetitive work ; i think you shud do code reuse ! why dont you simply write functions that "write" small building blocks of HTML. get the idea? see Eg. you can have a function to which you could pass a string and it would automatically put that into a paragraph tag and present it. Of course you would also need to write some kind of a basic parser to do this (how would the function know where to attach the paragraph!). i dont think you are a beginner .. so i am not elaborating ... do tell me if you do not understand..
innerHTML
is a string representing the contents of the element.
You want to modify the element itself. Drop the .innerHTML
part.
An int
is not null, it may be 0
if not initialized.
If you want an integer to be able to be null, you need to use Integer
instead of int
.
Integer id;
String name;
public Integer getId() { return id; }
Besides the statement if(person.equals(null))
can't be true, because if person
is null, then a NullPointerException
will be thrown. So the correct expression is if (person == null)
Format strings can make hexdump behave exactly as you want it to (no whitespace at all, byte by byte):
hexdump -ve '1/1 "%.2x"'
1/1
means "each format is applied once and takes one byte", and "%.2x"
is the actual format string, like in printf. In this case: 2-character hexadecimal number, leading zeros if shorter.
Only need to run sudo ng serve to resolve the issue.
The zeroth parameter of a shell command is the command itself (or sometimes the shell itself). You should be using $1
.
(("$#" < 1)) && ( (("$1" != 1)) || (("$1" -ne 0q)) )
Your boolean logic is also a bit confused:
(( "$#" < 1 && # If the number of arguments is less than one…
"$1" != 1 || "$1" -ne 0)) # …how can the first argument possibly be 1 or 0?
This is probably what you want:
(( "$#" )) && (( $1 == 1 || $1 == 0 )) # If true, there is at least one argument and its value is 0 or 1
ng-show
/ ng-hide
accepts only boolean
values.
For complex expressions it is good to use controller and scope to avoid complications.
Below one will work (It is not very complex expression)
ng-show="User=='admin' || User=='teacher'"
Here element will be shown in UI when any of the two condition return true (OR operation).
Like this you can use any expressions.
If you are wanting to configure this locally on OS X 10.8 serving Angular with Apache then you might find the following in your .htaccess file helps:
<IfModule mod_rewrite.c>
Options +FollowSymlinks
RewriteEngine On
RewriteBase /~yourusername/appname/public/
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !.*\.(css|js|html|png|jpg|jpeg|gif|txt)
RewriteRule (.*) index.html [L]
</IfModule>
Options +FollowSymlinks if not set may give you a forbidden error in the logs like so:
Options FollowSymLinks or SymLinksIfOwnerMatch is off which implies that RewriteRule directive is forbidden
Rewrite base is required otherwise requests will be resolved to your server root which locally by default is not your project directory unless you have specifically configured your vhosts, so you need to set the path so that the request finds your project root directory. For example on my machine I have a /Users/me/Sites directory where I keep all my projects. Like the old OS X set up.
The next two lines effectively say if the path is not a directory or a file, so you need to make sure you have no files or directories the same as your app route paths.
The next condition says if request not ending with file extensions specified so add what you need there
And the [L] last one is saying to serve the index.html file - your app for all other requests.
If you still have problems then check the apache log, it will probably give you useful hints:
/private/var/log/apache2/error_log
For ASP.NET 1.1, this is still due to someone posting more than 1000 form fields, but the setting must be changed in the registry rather than a config file. It should be added as a DWORD named MaxHttpCollectionKeys in the registry under
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ASP.NET\1.1.4322.0
for 32-bit editions of Windows, and
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\ASP.NET\1.1.4322.0
for 64-bit editions of Windows.
This is the most important thing to know about the Tuple type. Tuple is a class, not a struct. It thus will be allocated upon the managed heap. Each class instance that is allocated adds to the burden of garbage collection.
Note: The properties Item1, Item2, and further do not have setters. You cannot assign them. The Tuple is immutable once created in memory.
<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.js"></script>
<script type="text/javascript" src="jquery-2.1.0.js"></script>
<script type="text/javascript" >
function openOnImageClick()
{
//alert("Jai Sh Raam");
// document.getElementById("images").src = "fruits.jpg";
var img = document.createElement('img');
img.setAttribute('src', 'tiger.jpg');
img.setAttribute('width', '200');
img.setAttribute('height', '150');
document.getElementById("images").appendChild(img);
}
</script>
</head>
<body>
<h1>Screen Shot View</h1>
<p>Click the Tiger to display the Image</p>
<div id="images" >
</div>
<img src="tiger.jpg" width="100" height="50" alt="unfinished bingo card" onclick="openOnImageClick()" />
<img src="Logo1.jpg" width="100" height="50" alt="unfinished bingo card" onclick="openOnImageClick()" />
</body>
</html>
Do you really need to "build" it from javascript or can you simply return the built HTML from PHP and insert it into the DOM?
The first backslash in your string is being interpreted as a special character, in fact because it's followed by a "U" it's being interpreted as the start of a unicode code point.
To fix this you need to escape the backslashes in the string. I don't know Python specifically but I'd guess you do it by doubling the backslashes:
data = open("C:\\Users\\miche\\Documents\\school\\jaar2\\MIK\\2.6\\vektis_agb_zorgverlener")
Using the data points from the accepted answer you can use polynomial interpolation to obtain a formula.
WolframAlpha Input: interpolating polynomial {{1,.63},{2,.82}, {3,1}, {4,1.13}, {5,1.5}, {6, 2}, {7,3}}
Formula: 0.00223611x^6 - 0.0530417x^5 + 0.496319x^4 - 2.30479x^3 + 5.51644x^2 - 6.16717x + 3.14
And use in Groovy code:
import java.math.* def convert = {x -> (0.00223611*x**6 - 0.053042*x**5 + 0.49632*x**4 - 2.30479*x**3 + 5.5164*x**2 - 6.167*x + 3.14).setScale(2, RoundingMode.HALF_UP) } (1..7).each { i -> println(convert(i)) }
When looking at an input with a type of number, you'll notice the spinner buttons (up/down) on the right-hand side of the input field. These spinners aren't always desirable, thus the code below removes such styling to render an input that resembles that of an input with a type of text.
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
-webkit-appearance: none;
}
Whilst more of a workaround, if you're running an Intel Mac, you could go the virtualisation route - at least then you can run the same tools.
Below is another way to capitalize each word in a string. \w
doesn't match Cyrillic characters or Latin characters with diacritics but [[:word:]]
does. upcase
, downcase
, capitalize
, and swapcase
didn't apply to non-ASCII characters until Ruby 2.4.0 which was released in 2016.
"aAa-BBB ä ????? _a a_a".gsub(/\w+/,&:capitalize)
=> "Aaa-Bbb ä ????? _a A_a"
"aAa-BBB ä ????? _a a_a".gsub(/[[:word:]]+/,&:capitalize)
=> "Aaa-Bbb Ä ????? _a A_a"
[[:word:]]
matches characters in these categories:
Ll (Letter, Lowercase)
Lu (Letter, Uppercase)
Lt (Letter, Titlecase)
Lo (Letter, Other)
Lm (Letter, Modifier)
Nd (Number, Decimal Digit)
Pc (Punctuation, Connector)
[[:word:]]
matches all 10 of the characters in the "Punctuation, Connector" (Pc
) category:
005F _ LOW LINE
203F ? UNDERTIE
2040 ? CHARACTER TIE
2054 ? INVERTED UNDERTIE
FE33 ? PRESENTATION FORM FOR VERTICAL LOW LINE
FE34 ? PRESENTATION FORM FOR VERTICAL WAVY LOW LINE
FE4D ? DASHED LOW LINE
FE4E ? CENTRELINE LOW LINE
FE4F ? WAVY LOW LINE
FF3F _ FULLWIDTH LOW LINE
This is another way to only convert the first character of a string to uppercase:
"striNG".sub(/./,&:upcase)
=> "StriNG"
Finally Overcame the problem
For solving the problem i ran the following commands through terminal.
sudo chmod -R 755 laravel_blog
and then type below to allow laravel to write file to storage folder
chmod -R o+w laravel_blog/storage
This two commands solved the problem.
If you have assigned the slice to a variable and want to set using the variable as in the following:
df2 = df[df['A'] > 2]
df2['B'] = value
And you do not want to use Jeffs solution because your condition computing df2
is to long or for some other reason, then you can use the following:
df.loc[df2.index.tolist(), 'B'] = value
df2.index.tolist()
returns the indices from all entries in df2, which will then be used to set column B in the original dataframe.
You can perform your housekeeping in a separate script which can be cronned to run daily. Something like this:
find /path/to/logs -type f -mtime +7 -exec rm -f {} \;
Solution native Javascript :
document.getElementById("theSelectId").insertBefore(new Option('', ''), document.getElementById("theSelectId").firstChild);
example : http://codepen.io/anon/pen/GprybL
WHERE t.date >= DATE_ADD(CURDATE(), INTERVAL '-3' DAY);
use quotes on the -3 value
$ curl -sS https://getcomposer.org/installer | php
$ mv composer.phar /Applications/MAMP/htdocs/bashrushAPI/composer.phar
$ alias composer='/Applications/MAMP/htdocs/bashrushAPI/composer.phar'
$ composer --version
Composer version 1.7.2 2018-08-16 16:57:12
$ ls
CONTRIBUTING.md docker-compose.yml templates README.md logs tests composer.json phpunit.xml vendor composer.lock public composer.phar src
$ composer.phar update
Loading composer repositories with package information Updating dependencies (including require-dev) Nothing to install or update Generating autoload files
$ php composer.phar start
php -S localhost:8080 -t public [Thu Sep 27 03:16:11 2018] ::1:51177 [200]: / [Thu Sep 27 03:16:11 2018] ::1:51178 [404]: /favicon.ico - No such file or directory
As you're using Python 3, there is no urllib module anymore. It has been split into several modules.
This would be equivalent to urlretrieve:
import urllib.request
data = urllib.request.urlretrieve("http://...")
urlretrieve behaves exactly the same way as it did in Python 2.x, so it'll work just fine.
Basically:
urlretrieve
saves the file to a temporary file and returns a tuple (filename, headers)
urlopen
returns a Request
object whose read
method returns a bytestring containing the file contentsIf the difference between endTime and startTime is greater than or equal to 60 Minutes , the statement:endTime.Subtract(startTime).Minutes;
will always return (minutesDifference % 60)
. Obviously which is not desired when we are only talking about minutes (not hours here).
Here are some of the ways if you want to get total number of minutes
(in different typecasts):
// Default value that is returned is of type *double*
double double_minutes = endTime.Subtract(startTime).TotalMinutes;
int integer_minutes = (int)endTime.Subtract(startTime).TotalMinutes;
long long_minutes = (long)endTime.Subtract(startTime).TotalMinutes;
string string_minutes = (string)endTime.Subtract(startTime).TotalMinutes;
Valid regex tokens vary by implementation. A generic form is:
[0-9]+(\.[0-9][0-9]?)?
More compact:
\d+(\.\d{1,2})?
Both assume that both have at least one digit before and one after the decimal place.
To require that the whole string is a number of this form, wrap the expression in start and end tags such as (in Perl's form):
^\d+(\.\d{1,2})?$
To match numbers without a leading digit before the decimal (.12
) and whole numbers having a trailing period (12.
) while excluding input of a single period (.
), try the following:
^(\d+(\.\d{0,2})?|\.?\d{1,2})$
Wrapped the fractional portion in ()?
to make it optional. Be aware that this excludes forms such as 12.
Including that would be more like ^\d+\\.?\d{0,2}$
.
Use ^\d{1,6}(\.\d{1,2})?$
to stop repetition and give a restriction to whole part of the decimal value.
The followin example shows how to capture and process video frames in HTML5:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Capturing & Processing Video in HTML5</title>
</head>
<body>
<div>
<h2>Camera Preview</h2>
<video id="cameraPreview" width="240" height="180" autoplay></video>
<p>
<button id="startButton" onclick="startCapture();">Start Capture</button>
<button id="stopButton" onclick="stopCapture();">Stop Capture</button>
</p>
</div>
<div>
<h2>Processing Preview</h2>
<canvas id="processingPreview" width="240" height="180"></canvas>
</div>
<div>
<h2>Recording Preview</h2>
<video id="recordingPreview" width="240" height="180" autoplay controls></video>
<p>
<a id="downloadButton">Download</a>
</p>
</div>
<script>
const ROI_X = 250;
const ROI_Y = 150;
const ROI_WIDTH = 240;
const ROI_HEIGHT = 180;
const FPS = 25;
let cameraStream = null;
let processingStream = null;
let mediaRecorder = null;
let mediaChunks = null;
let processingPreviewIntervalId = null;
function processFrame() {
let cameraPreview = document.getElementById("cameraPreview");
processingPreview
.getContext('2d')
.drawImage(cameraPreview, ROI_X, ROI_Y, ROI_WIDTH, ROI_HEIGHT, 0, 0, ROI_WIDTH, ROI_HEIGHT);
}
function generateRecordingPreview() {
let mediaBlob = new Blob(mediaChunks, { type: "video/webm" });
let mediaBlobUrl = URL.createObjectURL(mediaBlob);
let recordingPreview = document.getElementById("recordingPreview");
recordingPreview.src = mediaBlobUrl;
let downloadButton = document.getElementById("downloadButton");
downloadButton.href = mediaBlobUrl;
downloadButton.download = "RecordedVideo.webm";
}
function startCapture() {
const constraints = { video: true, audio: false };
navigator.mediaDevices.getUserMedia(constraints)
.then((stream) => {
cameraStream = stream;
let processingPreview = document.getElementById("processingPreview");
processingStream = processingPreview.captureStream(FPS);
mediaRecorder = new MediaRecorder(processingStream);
mediaChunks = []
mediaRecorder.ondataavailable = function(event) {
mediaChunks.push(event.data);
if(mediaRecorder.state == "inactive") {
generateRecordingPreview();
}
};
mediaRecorder.start();
let cameraPreview = document.getElementById("cameraPreview");
cameraPreview.srcObject = stream;
processingPreviewIntervalId = setInterval(processFrame, 1000 / FPS);
})
.catch((err) => {
alert("No media device found!");
});
};
function stopCapture() {
if(cameraStream != null) {
cameraStream.getTracks().forEach(function(track) {
track.stop();
});
}
if(processingStream != null) {
processingStream.getTracks().forEach(function(track) {
track.stop();
});
}
if(mediaRecorder != null) {
if(mediaRecorder.state == "recording") {
mediaRecorder.stop();
}
}
if(processingPreviewIntervalId != null) {
clearInterval(processingPreviewIntervalId);
processingPreviewIntervalId = null;
}
};
</script>
</body>
</html>
_x000D_
string s = "hello";
char c = s[1];
// now c == 'e'
See also Substring
, to return more than one character.
The easiest way that worked for me...if you are extending AppCompat Activity
In your build.gradle add latest appcompat library.
dependencies {
compile 'com.android.support:appcompat-v7:X.X.X' // where X.X.X version
}
Make your activity extend android.support.v7.app.AppCompatActivity
public class MainActivity extends AppCompatActivity {
...
}
Declare custom style in your styles.xml file.
<style name="RatingBar" parent="Theme.AppCompat">
<item name="colorControlNormal">@color/indigo</item>
<item name="colorControlActivated">@color/pink</item>
</style>
Apply this style to your RatingBar via android:theme attribute.
<RatingBar
android:theme="@style/RatingBar"
android:rating="3"
android:stepSize="0.5"
android:numStars="5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
Because the static version of the .Equal
method was not mentioned so far, I would like to add this here to summarize and to compare the 3 variations.
MyString.Equals("Somestring")) //Method 1
MyString == "Somestring" //Method 2
String.Equals("Somestring", MyString); //Method 3 (static String.Equals method) - better
where MyString
is a variable that comes from somewhere else in the code.
Background info and to summerize:
In Java using ==
to compare strings should not be used. I mention this in case you need to use both languages and also
to let you know that using ==
can also be replaced with something better in C#.
In C# there's no practical difference for comparing strings using Method 1 or Method 2 as long as both are of type string. However, if one is null, one is of another type (like an integer), or one represents an object that has a different reference, then, as the initial question shows, you may experience that comparing the content for equality may not return what you expect.
Suggested solution:
Because using ==
is not exactly the same as using .Equals
when comparing things, you can use the static String.Equals method instead. This way, if the two sides are not the same type you will still compare the content and if one is null, you will avoid the exception.
bool areEqual = String.Equals("Somestring", MyString);
It is a little more to write, but in my opinion, safer to use.
Here is some info copied from Microsoft:
public static bool Equals (string a, string b);
Parameters
a
String
The first string to compare, or null
.
b
String
The second string to compare, or null
.
Returns Boolean
true
if the value of a
is the same as the value of b
; otherwise, false
. If both a
and b
are null
, the method returns true
.
The correct answer is that it's not that Fiddler ignores traffic targeted at Localhost, but rather that most applications are hardcoded to bypass proxies (of which Fiddler is one) for requests targeted to localhost.
Hence, the various workarounds available: http://fiddler2.com/documentation/Configure-Fiddler/Tasks/MonitorLocalTraffic
Try this instead in the end:
exec (@query)
If you do not have the brackets, SQL Server assumes the value of the variable to be a stored procedure name.
OR
EXECUTE sp_executesql @query
And it should not be because of FULL JOIN.
But I hope you have already created the temp tables: #TrafficFinal, #TrafficFinal2, #TrafficFinal3 before this.
Please note that there are performance considerations between using EXEC and sp_executesql. Because sp_executesql uses forced statement caching like an sp.
More details here.
On another note, is there a reason why you are using dynamic sql for this case, when you can use the query as is, considering you are not doing any query manipulations and executing it the way it is?
{ "date" : "1000000" }
in your Mongo doc seems suspect. Since it's a number, it should be { date : 1000000 }
It's probably a type mismatch. Try post.findOne({date: "1000000"}, callback)
and if that works, you have a typing issue.
You could possibly create a cookie if thats allowed in your requirment. If you choose to take the cookie route then the solution could be as follows. Also the benefit with cookie is after the user closes the Browser and Re-opens, if the cookie has not been deleted the value will be persisted.
Cookie *Create and Store a Cookie:*
function setCookie(c_name,value,exdays)
{
var exdate=new Date();
exdate.setDate(exdate.getDate() + exdays);
var c_value=escape(value) + ((exdays==null) ? "" : "; expires="+exdate.toUTCString());
document.cookie=c_name + "=" + c_value;
}
The function which will return the specified cookie:
function getCookie(c_name)
{
var i,x,y,ARRcookies=document.cookie.split(";");
for (i=0;i<ARRcookies.length;i++)
{
x=ARRcookies[i].substr(0,ARRcookies[i].indexOf("="));
y=ARRcookies[i].substr(ARRcookies[i].indexOf("=")+1);
x=x.replace(/^\s+|\s+$/g,"");
if (x==c_name)
{
return unescape(y);
}
}
}
Display a welcome message if the cookie is set
function checkCookie()
{
var username=getCookie("username");
if (username!=null && username!="")
{
alert("Welcome again " + username);
}
else
{
username=prompt("Please enter your name:","");
if (username!=null && username!="")
{
setCookie("username",username,365);
}
}
}
The above solution is saving the value through cookies. Its a pretty standard way without storing the value on the server side.
Jquery
Set a value to the session storage.
Javascript:
$.sessionStorage( 'foo', {data:'bar'} );
Retrieve the value:
$.sessionStorage( 'foo', {data:'bar'} );
$.sessionStorage( 'foo' );Results:
{data:'bar'}
Local Storage Now lets take a look at Local storage. Lets say for example you have an array of variables that you are wanting to persist. You could do as follows:
var names=[];
names[0]=prompt("New name?");
localStorage['names']=JSON.stringify(names);
//...
var storedNames=JSON.parse(localStorage['names']);
Server Side Example using ASP.NET
Adding to Sesion
Session["FirstName"] = FirstNameTextBox.Text;
Session["LastName"] = LastNameTextBox.Text;
// When retrieving an object from session state, cast it to // the appropriate type.
ArrayList stockPicks = (ArrayList)Session["StockPicks"];
// Write the modified stock picks list back to session state.
Session["StockPicks"] = stockPicks;
I hope that answered your question.
I had the same error in Windows. Adding git to the path fixed the issue.
G:\Dropbox\Development\xampp\htdocs.penfolds.git\penfolds-atg-development>bower install
bower bootstrap#~3.0.0 ENOGIT git is not installed or not in the PATH
G:\>PATH
PATH=E:\Program Files\Windows Resource Kits\Tools\;
G:\Dropbox\Development\xampp\htdocs.penfolds.git\penfolds-atg-development>set PATH=%PATH%;E:\Program Files\Git\bin;
G:\Dropbox\Development\xampp\htdocs.penfolds.git\penfolds-atg-development>bower install
bower bootstrap#~3.0.0 not-cached git://github.com/twbs/bootstrap.git#~3.0.0
bower bootstrap#~3.0.0 resolve git://github.com/twbs/bootstrap.git#~3.0.0
Based on the Enselic and Rahul answers.
It works for me (before and after API 21):
<CheckBox
android:id="@+id/checkbox"
android:layout_width="40dp"
android:layout_height="40dp"
android:text=""
android:gravity="center"
android:background="@drawable/checkbox_selector"
android:button="@null"
app:buttonCompat="@null" />
Using the blazing new concurrent.futures module
def sqr(val):
import time
time.sleep(0.1)
return val * val
def process_result(result):
print(result)
def process_these_asap(tasks):
import concurrent.futures
with concurrent.futures.ProcessPoolExecutor() as executor:
futures = []
for task in tasks:
futures.append(executor.submit(sqr, task))
for future in concurrent.futures.as_completed(futures):
process_result(future.result())
# Or instead of all this just do:
# results = executor.map(sqr, tasks)
# list(map(process_result, results))
def main():
tasks = list(range(10))
print('Processing {} tasks'.format(len(tasks)))
process_these_asap(tasks)
print('Done')
return 0
if __name__ == '__main__':
import sys
sys.exit(main())
The executor approach might seem familiar to all those who have gotten their hands dirty with Java before.
Also on a side note: To keep the universe sane, don't forget to close your pools/executors if you don't use with
context (which is so awesome that it does it for you)
Now there is a Native support in SQL Server (CTP3) for import, export, query and validate JSON inside T-SQL Refer to https://msdn.microsoft.com/en-us/library/dn921897.aspx
router.navigate
is just a convenience method that wraps router.navigateByUrl
, it boils down to:
navigate(commands: any[], extras) {
return router.navigateByUrl(router.createUrlTree(commands, extras), extras);
}
As mentioned in other answers router.navigateByUrl
will only accept absolute URLs:
// This will work
router.navigateByUrl("http://localhost/team/33/user/11")
// This WON'T work even though relativeTo parameter is in the signature
router.navigateByUrl("../22", {relativeTo: route})
All the relative calculations are done by router.createUrlTree
and router.navigate
. Array syntax is used to treat every array element as a URL modifying "command". E.g. ".."
- go up, "path"
- go down, {expand: true}
- add query param, etc.. You can use it like this:
// create /team/33/user/11
router.navigate(['/team', 33, 'user', 11]);
// assuming the current url is `/team/33/user/11` and the route points to `user/11`
// navigate to /team/33/user/11/details
router.navigate(['details'], {relativeTo: route});
// navigate to /team/33/user/22
router.navigate(['../22'], {relativeTo: route});
// navigate to /team/44/user/22
router.navigate(['../../team/44/user/22'], {relativeTo: route});
That {relativeTo: route}
parameter is important as that's what router will use as the root for relative operations.
Get it through your component's constructor:
// In my-awesome.component.ts:
constructor(private route: ActivatedRoute, private router: Router) {}
// Example call
onNavigateClick() {
// Navigates to a parent component
this.router.navigate([..], { relativeTo: this.route })
}
Nicest thing about this directive is that it will retrieve the ActivatedRoute
for you. Under the hood it's using already familiar:
router.navigateByUrl(router.createUrlTree(commands, { relativeTo: route }), { relativeTo: route });
Following variants will produce identical result:
[routerLink]="['../..']"
// if the string parameter is passed it will be wrapped into an array
routerLink="../.."
Make Executable your jar and after that double click on it on Mac OS then it works successfully.
sudo chmod +x filename.jar
Try this, I hope this works.
R interpreter has a duck-typing memory allocation system. There is no builtin method to tell you the datatype of your pointer to memory. Duck typing is done for speed, but turned out to be a bad idea because now statements such as: print(is.integer(5))
returns FALSE and is.integer(as.integer(5))
returns TRUE. Go figure.
The R-manual on basic types: https://cran.r-project.org/doc/manuals/R-lang.html#Basic-types
The best you can hope for is to write your own function to probe your pointer to memory, then use process of elimination to decide if it is suitable for your needs.
Your object()
needs to be penetrated with get(...)
before you can see inside. Example:
a <- 10
myGlobals <- objects()
for(i in myGlobals){
typeof(i) #prints character
typeof(get(i)) #prints integer
}
The R function typeof
has a bias to give you the type at maximum depth, for example.
library(tibble)
#expression notes type
#----------------------- -------------------------------------- ----------
typeof(TRUE) #a single boolean: logical
typeof(1L) #a single numeric with L postfixed: integer
typeof("foobar") #A single string in double quotes: character
typeof(1) #a single numeric: double
typeof(list(5,6,7)) #a list of numeric: list
typeof(2i) #an imaginary number complex
typeof(5 + 5L) #double + integer is coerced: double
typeof(c()) #an empty vector has no type: NULL
typeof(!5) #a bang before a double: logical
typeof(Inf) #infinity has a type: double
typeof(c(5,6,7)) #a vector containing only doubles: double
typeof(c(c(TRUE))) #a vector of vector of logicals: logical
typeof(matrix(1:10)) #a matrix of doubles has a type: list
typeof(substr("abc",2,2))#a string at index 2 which is 'b' is: character
typeof(c(5L,6L,7L)) #a vector containing only integers: integer
typeof(c(NA,NA,NA)) #a vector containing only NA: logical
typeof(data.frame()) #a data.frame with nothing in it: list
typeof(data.frame(c(3))) #a data.frame with a double in it: list
typeof(c("foobar")) #a vector containing only strings: character
typeof(pi) #builtin expression for pi: double
typeof(1.66) #a single numeric with mantissa: double
typeof(1.66L) #a double with L postfixed double
typeof(c("foobar")) #a vector containing only strings: character
typeof(c(5L, 6L)) #a vector containing only integers: integer
typeof(c(1.5, 2.5)) #a vector containing only doubles: double
typeof(c(1.5, 2.5)) #a vector containing only doubles: double
typeof(c(TRUE, FALSE)) #a vector containing only logicals: logical
typeof(factor()) #an empty factor has default type: integer
typeof(factor(3.14)) #a factor containing doubles: integer
typeof(factor(T, F)) #a factor containing logicals: integer
typeof(Sys.Date()) #builtin R dates: double
typeof(hms::hms(3600)) #hour minute second timestamp double
typeof(c(T, F)) #T and F are builtins: logical
typeof(1:10) #a builtin sequence of numerics: integer
typeof(NA) #The builtin value not available: logical
typeof(c(list(T))) #a vector of lists of logical: list
typeof(list(c(T))) #a list of vectors of logical: list
typeof(c(T, 3.14)) #a vector of logicals and doubles: double
typeof(c(3.14, "foo")) #a vector of doubles and characters: character
typeof(c("foo",list(T))) #a vector of strings and lists: list
typeof(list("foo",c(T))) #a list of strings and vectors: list
typeof(TRUE + 5L) #a logical plus an integer: integer
typeof(c(TRUE, 5L)[1]) #The true is coerced to 1 integer
typeof(c(c(2i), TRUE)[1])#logical coerced to complex: complex
typeof(c(NaN, 'batman')) #NaN's in a vector don't dominate: character
typeof(5 && 4) #doubles are coerced by order of && logical
typeof(8 < 'foobar') #string and double is coerced logical
typeof(list(4, T)[[1]]) #a list retains type at every index: double
typeof(list(4, T)[[2]]) #a list retains type at every index: logical
typeof(2 ** 5) #result of exponentiation double
typeof(0E0) #exponential lol notation double
typeof(0x3fade) #hexidecimal double
typeof(paste(3, '3')) #paste promotes types to string character
typeof(3 + ?) #R pukes on unicode error
typeof(iconv("a", "latin1", "UTF-8")) #UTF-8 characters character
typeof(5 == 5) #result of a comparison: logical
The R function class
has a bias to give you the type of container or structure encapsulating your types, for example.
library(tibble)
#expression notes class
#--------------------- ---------------------------------------- ---------
class(matrix(1:10)) #a matrix of doubles has a class: matrix
class(factor("hi")) #factor of items is: factor
class(TRUE) #a single boolean: logical
class(1L) #a single numeric with L postfixed: integer
class("foobar") #A single string in double quotes: character
class(1) #a single numeric: numeric
class(list(5,6,7)) #a list of numeric: list
class(2i) #an imaginary complex
class(data.frame()) #a data.frame with nothing in it: data.frame
class(Sys.Date()) #builtin R dates: Date
class(sapply) #a function is function
class(charToRaw("hi")) #convert string to raw: raw
class(array("hi")) #array of items is: array
class(5 + 5L) #double + integer is coerced: numeric
class(c()) #an empty vector has no class: NULL
class(!5) #a bang before a double: logical
class(Inf) #infinity has a class: numeric
class(c(5,6,7)) #a vector containing only doubles: numeric
class(c(c(TRUE))) #a vector of vector of logicals: logical
class(substr("abc",2,2))#a string at index 2 which is 'b' is: character
class(c(5L,6L,7L)) #a vector containing only integers: integer
class(c(NA,NA,NA)) #a vector containing only NA: logical
class(data.frame(c(3))) #a data.frame with a double in it: data.frame
class(c("foobar")) #a vector containing only strings: character
class(pi) #builtin expression for pi: numeric
class(1.66) #a single numeric with mantissa: numeric
class(1.66L) #a double with L postfixed numeric
class(c("foobar")) #a vector containing only strings: character
class(c(5L, 6L)) #a vector containing only integers: integer
class(c(1.5, 2.5)) #a vector containing only doubles: numeric
class(c(TRUE, FALSE)) #a vector containing only logicals: logical
class(factor()) #an empty factor has default class: factor
class(factor(3.14)) #a factor containing doubles: factor
class(factor(T, F)) #a factor containing logicals: factor
class(hms::hms(3600)) #hour minute second timestamp hms difftime
class(c(T, F)) #T and F are builtins: logical
class(1:10) #a builtin sequence of numerics: integer
class(NA) #The builtin value not available: logical
class(c(list(T))) #a vector of lists of logical: list
class(list(c(T))) #a list of vectors of logical: list
class(c(T, 3.14)) #a vector of logicals and doubles: numeric
class(c(3.14, "foo")) #a vector of doubles and characters: character
class(c("foo",list(T))) #a vector of strings and lists: list
class(list("foo",c(T))) #a list of strings and vectors: list
class(TRUE + 5L) #a logical plus an integer: integer
class(c(TRUE, 5L)[1]) #The true is coerced to 1 integer
class(c(c(2i), TRUE)[1])#logical coerced to complex: complex
class(c(NaN, 'batman')) #NaN's in a vector don't dominate: character
class(5 && 4) #doubles are coerced by order of && logical
class(8 < 'foobar') #string and double is coerced logical
class(list(4, T)[[1]]) #a list retains class at every index: numeric
class(list(4, T)[[2]]) #a list retains class at every index: logical
class(2 ** 5) #result of exponentiation numeric
class(0E0) #exponential lol notation numeric
class(0x3fade) #hexidecimal numeric
class(paste(3, '3')) #paste promotes class to string character
class(3 + ?) #R pukes on unicode error
class(iconv("a", "latin1", "UTF-8")) #UTF-8 characters character
class(5 == 5) #result of a comparison: logical
storage.mode
of your variable:When an R variable is written to disk, the data layout changes again, and is called the data's storage.mode
. The function storage.mode(...)
reveals this low level information: see Mode, Class, and Type of R objects. You shouldn't need to worry about R's storage.mode unless you are trying to understand delays caused by round trip casts/coercions that occur when assigning and reading data to and from disk.
gettype(your_variable)
:Run this R code then adapt it for your purposes, it'll make a pretty good guess as to what type it is.
get_type <- function(variable){
sz <- as.integer(length(variable)) #length of your variable
tof <- typeof(variable) #typeof your variable
cls <- class(variable) #class of your variable
isc <- is.character(variable) #what is.character() has to say about it.
d <- dim(variable) #dimensions of your variable
isv <- is.vector(variable)
if (is.matrix(variable)){
d <- dim(t(variable)) #dimensions of your matrix
}
#observations ----> datatype
if (sz>=1 && tof == "logical" && cls == "logical" && isv == TRUE){ return("vector of logical") }
if (sz>=1 && tof == "integer" && cls == "integer" ){ return("vector of integer") }
if (sz==1 && tof == "double" && cls == "Date" ){ return("Date") }
if (sz>=1 && tof == "raw" && cls == "raw" ){ return("vector of raw") }
if (sz>=1 && tof == "double" && cls == "numeric" ){ return("vector of double") }
if (sz>=1 && tof == "double" && cls == "array" ){ return("vector of array of double") }
if (sz>=1 && tof == "character" && cls == "array" ){ return("vector of array of character") }
if (sz>=0 && tof == "list" && cls == "data.frame" ){ return("data.frame") }
if (sz>=1 && isc == TRUE && isv == TRUE){ return("vector of character") }
if (sz>=1 && tof == "complex" && cls == "complex" ){ return("vector of complex") }
if (sz==0 && tof == "NULL" && cls == "NULL" ){ return("NULL") }
if (sz>=0 && tof == "integer" && cls == "factor" ){ return("factor") }
if (sz>=1 && tof == "double" && cls == "numeric" && isv == TRUE){ return("vector of double") }
if (sz>=1 && tof == "double" && cls == "matrix"){ return("matrix of double") }
if (sz>=1 && tof == "character" && cls == "matrix"){ return("matrix of character") }
if (sz>=1 && tof == "list" && cls == "list" && isv == TRUE){ return("vector of list") }
if (sz>=1 && tof == "closure" && cls == "function" && isv == FALSE){ return("closure/function") }
return("it's pointer to memory, bruh")
}
assert <- function(a, b){
if (a == b){
cat("P")
}
else{
cat("\nFAIL!!! Sniff test:\n")
sz <- as.integer(length(variable)) #length of your variable
tof <- typeof(variable) #typeof your variable
cls <- class(variable) #class of your variable
isc <- is.character(variable) #what is.character() has to say about it.
d <- dim(variable) #dimensions of your variable
isv <- is.vector(variable)
if (is.matrix(variable)){
d <- dim(t(variable)) #dimensions of your variable
}
if (!is.function(variable)){
print(paste("value: '", variable, "'"))
}
print(paste("get_type said: '", a, "'"))
print(paste("supposed to be: '", b, "'"))
cat("\nYour pointer to memory has properties:\n")
print(paste("sz: '", sz, "'"))
print(paste("tof: '", tof, "'"))
print(paste("cls: '", cls, "'"))
print(paste("d: '", d, "'"))
print(paste("isc: '", isc, "'"))
print(paste("isv: '", isv, "'"))
quit()
}
}
#these asserts give a sample for exercising the code.
assert(get_type(TRUE), "vector of logical") #everything is a vector in R by default.
assert(get_type(c(TRUE)), "vector of logical") #c() just casts to vector
assert(get_type(c(c(TRUE))),"vector of logical") #casting vector multiple times does nothing
assert(get_type(!5), "vector of logical") #bang inflicts 'not truth-like'
assert(get_type(1L), "vector of integer") #naked integers are still vectors of 1
assert(get_type(c(1L, 2L)), "vector of integer") #Longs are not doubles
assert(get_type(c(1L, c(2L, 3L))),"vector of integer") #nested vectors of integers
assert(get_type(c(1L, c(TRUE))), "vector of integer") #logicals coerced to integer
assert(get_type(c(FALSE, c(1L))), "vector of integer") #logicals coerced to integer
assert(get_type("foobar"), "vector of character") #character here means 'string'
assert(get_type(c(1L, "foobar")), "vector of character") #integers are coerced to string
assert(get_type(5), "vector of double")
assert(get_type(5 + 5L), "vector of double")
assert(get_type(Inf), "vector of double")
assert(get_type(c(5,6,7)), "vector of double")
assert(get_type(NaN), "vector of double")
assert(get_type(list(5)), "vector of list") #your list is in a vector.
assert(get_type(list(5,6,7)), "vector of list")
assert(get_type(c(list(5,6,7))),"vector of list")
assert(get_type(list(c(5,6),T)),"vector of list") #vector of list of vector and logical
assert(get_type(list(5,6,7)), "vector of list")
assert(get_type(2i), "vector of complex")
assert(get_type(c(2i, 3i, 4i)), "vector of complex")
assert(get_type(c()), "NULL")
assert(get_type(data.frame()), "data.frame")
assert(get_type(data.frame(4,5)),"data.frame")
assert(get_type(Sys.Date()), "Date")
assert(get_type(sapply), "closure/function")
assert(get_type(charToRaw("hi")),"vector of raw")
assert(get_type(c(charToRaw("a"), charToRaw("b"))), "vector of raw")
assert(get_type(array(4)), "vector of array of double")
assert(get_type(array(4,5)), "vector of array of double")
assert(get_type(array("hi")), "vector of array of character")
assert(get_type(factor()), "factor")
assert(get_type(factor(3.14)), "factor")
assert(get_type(factor(TRUE)), "factor")
assert(get_type(matrix(3,4,5)), "matrix of double")
assert(get_type(as.matrix(5)), "matrix of double")
assert(get_type(matrix("yatta")),"matrix of character")
I put in a C++/Java/Python ideology here that gives me the scoop of what the memory most looks like. R triad typing system is like trying to nail spaghetti to the wall, <-
and <<-
will package your matrix to a list when you least suspect. As the old duck-typing saying goes: If it waddles like a duck and if it quacks like a duck and if it has feathers, then it's a duck.
I'm seeing this error code in rotation crashes on Xcode 12.0 Beta 6, only on the iOS 14 simulator. It doesn't crash on my real device running iOS 13 though! So if you're running beta stuff and seeing rotation crashes in the simulator, maybe you just need to run on a real device with a non-beta iOS version.
This may be a good explanation example
CREATE TABLE employees (
id INTEGER NOT NULL PRIMARY KEY,
managerId INTEGER REFERENCES employees(id),
name VARCHAR(30) NOT NULL
);
INSERT INTO employees(id, managerId, name) VALUES(1, NULL, 'John');
INSERT INTO employees(id, managerId, name) VALUES(2, 1, 'Mike');
-- Explanation: -- In this example. -- John is Mike's manager. Mike does not manage anyone. -- Mike is the only employee who does not manage anyone.
you need javascript and some client side calculations: http://jsfiddle.net/omegaiori/NERE8/2/
you will need jquery to effectively achieve what you want. this function is very simple but very effective:
(function () {
var heights = $("#wrapper").outerHeight(true);
var outerHeights = $("#first").outerHeight(true);
jQuery('#second').css('height', (heights - outerHeights) + "px");
})();
first it detects the wrapper height, as it is set to 100% it's different everytime (it depends on what screen you are landing).
in the second step it gives the #second
div the appropriate height subtracting from the wrapper height the #first
div height. the result is the available height left in the wrapper div
The input.files
attribute is an HTML5 feature. That's why some browsers din't return anything.
Simply add a fallback to the plain old input.value
(string) if files
doesn't exist.
reference: http://www.w3.org/TR/2012/WD-html5-20121025/common-input-element-apis.html#dom-input-files
Here's an example (sorry for any typos)
var itemsToRemove = new ArrayList(); // should use generic List if you can
foreach (var item in originalArrayList) {
if (...) {
itemsToRemove.Add(item);
}
}
foreach (var item in itemsToRemove) {
originalArrayList.Remove(item);
}
OR if you're using 3.5, Linq makes the first bit easier:
itemsToRemove = originalArrayList
.Where(item => ...)
.ToArray();
foreach (var item in itemsToRemove) {
originalArrayList.Remove(item);
}
Replace "..." with your condition that determines if item should be removed.
There are several file versions on the great Christoph Gohlke's site.
Something I have found important when installing wheels from this site is to first run this from the Python console:
import pip
print(pip.pep425tags.get_supported())
so that you know which version you should install for your computer. Picking the wrong version may fail the installing of the package (especially if you don't use the right CPython tag, for example, cp27).
document.getElementById('myDiv').style.height = 500;
This is the very basic JS code required to adjust the height of your object dynamically. I just did this very thing where I had some auto height property, but when I add some content via XMLHttpRequest
I needed to resize my parent div and this offsetheight property did the trick in IE6/7 and FF3
Pattern p = Pattern.compile("tom"); //the regular-expression pattern
Matcher m = p.matcher("(bob)(tom)(harry)"); //The data to find matches with
while (m.find()) {
//do something???
}
Use regex to find a match maybe?
Or create an array
String[] a = new String[]{
"tom",
"bob",
"harry"
};
if(a.contains(stringtomatch)){
//do something
}
You can try one of the following:
Method 1:
MyProject
go build
./MyProject
You can do both steps at once by typing go build && ./MyProject
. Go files of the package main
are compiled to an executable.
Method 2:
go run *.go
. It won't create any executable but it runs.One is an array of arrays, and one is a 2d array. The former can be jagged, the latter is uniform.
That is, a double[][]
can validly be:
double[][] x = new double[5][];
x[0] = new double[10];
x[1] = new double[5];
x[2] = new double[3];
x[3] = new double[100];
x[4] = new double[1];
Because each entry in the array is a reference to an array of double
. With a jagged array, you can do an assignment to an array like you want in your second example:
x[0] = new double[13];
On the second item, because it is a uniform 2d array, you can't assign a 1d array to a row or column, because you must index both the row and column, which gets you down to a single double
:
double[,] ServicePoint = new double[10,9];
ServicePoint[0]... // <-- meaningless, a 2d array can't use just one index.
UPDATE:
To clarify based on your question, the reason your #1 had a syntax error is because you had this:
double[][] ServicePoint = new double[10][9];
And you can't specify the second index at the time of construction. The key is that ServicePoint is not a 2d array, but an 1d array (of arrays) and thus since you are creating a 1d array (of arrays), you specify only one index:
double[][] ServicePoint = new double[10][];
Then, when you create each item in the array, each of those are also arrays, so then you can specify their dimensions (which can be different, hence the term jagged array):
ServicePoint[0] = new double[13];
ServicePoint[1] = new double[20];
Hope that helps!
For those who still struggle with this problem in Xcode8. For me was a duplicate Certificate problem, this is how I solved it:
I read the answer of Nick and then I began my investigation. I checked all the keys and Certificates in my particular case (inside ~/Library/Keychains/System.keychain).
When I opened the file, I found that I had two iPhone Distribution Certificates (that was the certificate that Xcode was requesting me), one with the iOS Distribution private key that I have been using since the beginning, and another iPhone Distribution Certificate which its private Key had a name (iOS Distribution:NAME) that wasn´t familiar for me. I deleted this last certificate, started Xcode again and the problem was gone. xCode wasn´t able to resolve that conflict and that´s why it was giving signing certificate error all the time.
Check your keychains, maybe you have a duplicate certificate.
I achieved it on 2.3.3 by just adding android:theme="@android:style/Theme.Translucent"
in the activity tag in the manifest.
I don't know about lower versions...
IEnumerable
and IEnumerator
are both interfaces. IEnumerable
has just one method called GetEnumerator
. This method returns (as all methods return something including void) another type which is an interface and that interface is IEnumerator
. When you implement enumerator logic in any of your collection class, you implement IEnumerable
(either generic or non generic). IEnumerable
has just one method whereas IEnumerator
has 2 methods (MoveNext
and Reset
) and a property Current
. For easy understanding consider IEnumerable
as a box that contains IEnumerator
inside it (though not through inheritance or containment). See the code for better understanding:
class Test : IEnumerable, IEnumerator
{
IEnumerator IEnumerable.GetEnumerator()
{
throw new NotImplementedException();
}
public object Current
{
get { throw new NotImplementedException(); }
}
public bool MoveNext()
{
throw new NotImplementedException();
}
public void Reset()
{
throw new NotImplementedException();
}
}
I know it's old question but if you really need use $scope.$applyAsync();
I answered a similar question here.
In the Project’s Settings, add /FORCE:MULTIPLE
to the Linker’s Command Line options.
From MSDN: "Use /FORCE:MULTIPLE to create an output file whether or not LINK finds more than one definition for a symbol."
That's what programmers call a "quick and dirty" solution, but sometimes you just want the build to be completed and get to the bottom of the problem later, so that's kind of a ad-hoc solution. To actually avoid this error, provided that you want
int WIDTH = 1024;
int HEIGHT = 800;
to be shared among several source files, just declare them only in a single .c / .cpp file, and refer to them in a header file:
extern int WIDTH;
extern int HEIGHT;
Then include the header in any other source file you wish these global variables to be available.
The .NET framework uses banker's rounding in Math.Round
by default. You should use this overload:
Math.Round(0.5d, MidpointRounding.AwayFromZero) //1
Math.Round(0.4d, MidpointRounding.AwayFromZero) //0
There is no standard, so there is no guarantee. With that said, its common for the sitemap to be self labeled and on the root, like this:
example.com/sitemap.xml
Case is sensitive on some servers, so keep that in mind. If its not there, look in the robots file on the root:
example.com/robots.txt
If you don't see it listed in the robots file head to Google and search this:
site:example.com filetype:xml
This will limit the results to XML files on your target domain. At this point its trial-and-error and based on the specifics of the website you are working with. If you get several pages of results from the Google search phrase above then try to limit the results further:
filetype:xml site:example.com inurl:sitemap
or
filetype:xml site:example.com inurl:products
If you still can't find it you can right-click > "View Source"
and do a search (aka: "control find" or Ctrl + F
) for .xml
to see if there is a reference to it in the code.
In case the container is already running:
docker exec -it container_id_or_name ash
Proxy timeouts are well, for proxies, not for FastCGI...
The directives that affect FastCGI timeouts are client_header_timeout
, client_body_timeout
and send_timeout
.
Edit: Considering what's found on nginx wiki, the send_timeout directive is responsible for setting general timeout of response (which was bit misleading). For FastCGI there's fastcgi_read_timeout
which is affecting the fastcgi process response timeout.
HTH.
Here's a regex which will grab what's between cow and milk (without leading/trailing space):
srctext = "My cow always gives milk.";
var re = /(.*cow\s+)(.*)(\s+milk.*)/;
var newtext = srctext.replace(re, "$2");
An example: http://jsfiddle.net/entropo/tkP74/
This works for me!
$('#<%= ddlstuff.ClientID %>').change(function () {
alert('Change Happened');
$('#<%= txtBoxToClear.ClientID %>').val('');
});
If you are using jQuery you can easily check the type of any element.
function(elementID){
var type = $(elementId).attr('type');
if(type == "text") //inputBox
console.log("input text" + $(elementId).val().size());
}
similarly you can check the other types and take appropriate action.
In the Eclipse download folder make the entries in the eclipse.ini
file :
--launcher.XXMaxPermSize
512M
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xms512m
-Xmx1024m
or what ever values you want.
You can handle custom cell in uicollection view see below code.
- (void)viewDidLoad
{
UINib *nib2 = [UINib nibWithNibName:@"YourCustomCell" bundle:nil];
[CollectionVW registerNib:nib2 forCellWithReuseIdentifier:@"YourCustomCell"];
UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
[flowLayout setItemSize:CGSizeMake(200, 230)];
flowLayout.minimumInteritemSpacing = 0;
[flowLayout setScrollDirection:UICollectionViewScrollDirectionVertical];
[CollectionVW setCollectionViewLayout:flowLayout];
[CollectionVW reloadData];
}
#pragma mark - COLLECTIONVIEW
#pragma mark Collection View CODE
-(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{
return 1;
}
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
return Array.count;
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellIdentifier = @"YourCustomCell";
YourCustomCell *cell = (YourCustomCell *)[collectionView dequeueReusableCellWithReuseIdentifier:cellIdentifier forIndexPath:indexPath];
cell.MainIMG.image=[UIImage imageNamed:[Array objectAtIndex:indexPath.row]];
return cell;
}
-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
}
#pragma mark Collection view layout things
// Layout: Set cell size
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
CGSize mElementSize;
mElementSize=CGSizeMake(kScreenWidth/3.4, 150);
return mElementSize;
}
- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section
{
return 5.0;
}
// Layout: Set Edges
- (UIEdgeInsets)collectionView: (UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout insetForSectionAtIndex:(NSInteger)section
{
if (isIphone5 || isiPhone4)
{
return UIEdgeInsetsMake(15,15,5,15); // top, left, bottom, right
}
else if (isIphone6)
{
return UIEdgeInsetsMake(15,15,5,15); // top, left, bottom, right
}
else if (isIphone6P)
{
return UIEdgeInsetsMake(15,15,5,15); // top, left, bottom, right
}
return UIEdgeInsetsMake(15,15,5,15); // top, left, bottom, right
}
protected void btnUpload_Click(object sender, EventArgs e)
{
if (Page.IsValid)
{
bool logval = true;
if (logval == true)
{
String img_1 = fuUploadExcelName.PostedFile.FileName;
String img_2 = System.IO.Path.GetFileName(img_1);
string extn = System.IO.Path.GetExtension(img_1);
string frstfilenamepart = "";
frstfilenamepart = "Emp" + DateTime.Now.ToString("ddMMyyyyhhmmss"); ;
UploadExcelName.Value = frstfilenamepart + extn;
fuUploadExcelName.SaveAs(Server.MapPath("~/Emp/EmpExcel/") + "/" + UploadExcelName.Value);
string PathName = Server.MapPath("~/Emp/EmpExcel/") + "\\" + UploadExcelName.Value;
GetExcelSheetForEmp(PathName, UploadExcelName.Value);
}
}
}
private void GetExcelSheetForEmp(string PathName, string UploadExcelName)
{
string excelFile = "EmpExcel/" + PathName;
OleDbConnection objConn = null;
System.Data.DataTable dt = null;
try
{
DataSet dss = new DataSet();
String connString = "Provider=Microsoft.ACE.OLEDB.12.0;Persist Security Info=True;Extended Properties=Excel 12.0 Xml;Data Source=" + PathName;
objConn = new OleDbConnection(connString);
objConn.Open();
dt = objConn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
if (dt == null)
{
return;
}
String[] excelSheets = new String[dt.Rows.Count];
int i = 0;
foreach (DataRow row in dt.Rows)
{
if (i == 0)
{
excelSheets[i] = row["TABLE_NAME"].ToString();
OleDbCommand cmd = new OleDbCommand("SELECT * FROM [" + excelSheets[i] + "]", objConn);
OleDbDataAdapter oleda = new OleDbDataAdapter();
oleda.SelectCommand = cmd;
oleda.Fill(dss, "TABLE");
}
i++;
}
grdByExcel.DataSource = dss.Tables[0].DefaultView;
grdByExcel.DataBind();
}
catch (Exception ex)
{
ViewState["Fuletypeidlist"] = "0";
grdByExcel.DataSource = null;
grdByExcel.DataBind();
}
finally
{
if (objConn != null)
{
objConn.Close();
objConn.Dispose();
}
if (dt != null)
{
dt.Dispose();
}
}
}
It's perfectly possible to template a class on an integer rather than a type. We can assign the templated value to a variable, or otherwise manipulate it in a way we might with any other integer literal:
unsigned int x = N;
In fact, we can create algorithms which evaluate at compile time (from Wikipedia):
template <int N>
struct Factorial
{
enum { value = N * Factorial<N - 1>::value };
};
template <>
struct Factorial<0>
{
enum { value = 1 };
};
// Factorial<4>::value == 24
// Factorial<0>::value == 1
void foo()
{
int x = Factorial<4>::value; // == 24
int y = Factorial<0>::value; // == 1
}
I am using this workaround: Fix bg1's height on page load by:
var BG = document.getElementById('bg1');
BG.style.height = BG.parentElement.clientHeight;
Then attach a resize event listener to Window which does this: if difference in height after resizing is less than 60px (anything more than url bar height) then do nothing and if it is greater than 60px then set bg1's height again to its parent's height! complete code:
window.addEventListener("resize", onResize, false);
var BG = document.getElementById('bg1');
BG.style.height = BG.parentElement.clientHeight;
var oldH = BG.parentElement.clientHeight;
function onResize() {
if(Math.abs(oldH - BG.parentElement.clientHeight) > 60){
BG.style.height = BG.parentElement.clientHeight + 'px';
oldH = BG.parentElement.clientHeight;
}
}
PS: This bug is so irritating!
I got error sometimes when using $(`code`)
constructor.
Finally i got some approach to that here: https://stackoverflow.com/a/7902174/2480481
Basically, using Tee to read again the ouput and putting it into a variable. Theres how you see the normal output then read it from the ouput.
is not? I guess your current task genhash will output just that, a single string hash so might work for you.
Im so neewbie and still looking for full output & save into 1 command. Regards.
You should keep a watch on your scope.
Here is how you can do it:
<layout layoutId="myScope"></layout>
Your directive should look like
app.directive('layout', function($http, $compile){
return {
restrict: 'E',
scope: {
layoutId: "=layoutId"
},
link: function(scope, element, attributes) {
var layoutName = (angular.isDefined(attributes.name)) ? attributes.name : 'Default';
$http.get(scope.constants.pathLayouts + layoutName + '.html')
.success(function(layout){
var regexp = /^([\s\S]*?){{content}}([\s\S]*)$/g;
var result = regexp.exec(layout);
var templateWithLayout = result[1] + element.html() + result[2];
element.html($compile(templateWithLayout)(scope));
});
}
}
$scope.$watch('myScope',function(){
//Do Whatever you want
},true)
Similarly you can models in your directive, so if model updates automatically your watch method will update your directive.
How to debug SQL queries when you stuck
Print you query and run it directly in mysql or phpMyAdmin
$date = "2012-08-06";
$query= "INSERT INTO data_table (title, date_of_event)
VALUES('". $_POST['post_title'] ."',
'". $date ."')";
echo $query;
mysql_query($query) or die(mysql_error());
that way you can make sure that the problem is not in your PHP-script, but in your SQL-query
How to submit questions on SQ-queries
Make sure that you provided enough closure
Here is an option using a for
loop by groups rather by rows (like OP did)
for (i in unique(df$cat)) df$num[df$cat == i] <- seq_len(sum(df$cat == i))
You can use read-tree
to read or merge a given remote tree into the current index, for example:
git remote add foo [email protected]/foo.git
git fetch foo
git read-tree --prefix=my-folder/ -u foo/master:trunk/their-folder
To perform the merge, use -m
instead.
See also: How do I merge a sub directory in Git?
Attempting to remove HTML markup using a regular expression is problematic. You don't know what's in there as script or attribute values. One way is to insert it as the innerHTML of a div, remove any script elements and return the innerHTML, e.g.
function stripScripts(s) {
var div = document.createElement('div');
div.innerHTML = s;
var scripts = div.getElementsByTagName('script');
var i = scripts.length;
while (i--) {
scripts[i].parentNode.removeChild(scripts[i]);
}
return div.innerHTML;
}
alert(
stripScripts('<span><script type="text/javascript">alert(\'foo\');<\/script><\/span>')
);
Note that at present, browsers will not execute the script if inserted using the innerHTML property, and likely never will especially as the element is not added to the document.
If there is any single privilege that stands for ALL READ operations on database.
It depends on how you define "all read."
"Reading" from tables and views is the SELECT
privilege. If that's what you mean by "all read" then yes:
GRANT SELECT ON *.* TO 'username'@'host_or_wildcard' IDENTIFIED BY 'password';
However, it sounds like you mean an ability to "see" everything, to "look but not touch." So, here are the other kinds of reading that come to mind:
"Reading" the definition of views is the SHOW VIEW
privilege.
"Reading" the list of currently-executing queries by other users is the PROCESS
privilege.
"Reading" the current replication state is the REPLICATION CLIENT
privilege.
Note that any or all of these might expose more information than you intend to expose, depending on the nature of the user in question.
If that's the reading you want to do, you can combine any of those (or any other of the available privileges) in a single GRANT
statement.
GRANT SELECT, SHOW VIEW, PROCESS, REPLICATION CLIENT ON *.* TO ...
However, there is no single privilege that grants some subset of other privileges, which is what it sounds like you are asking.
If you are doing things manually and looking for an easier way to go about this without needing to remember the exact grant you typically make for a certain class of user, you can look up the statement to regenerate a comparable user's grants, and change it around to create a new user with similar privileges:
mysql> SHOW GRANTS FOR 'not_leet'@'localhost';
+------------------------------------------------------------------------------------------------------------------------------------+
| Grants for not_leet@localhost |
+------------------------------------------------------------------------------------------------------------------------------------+
| GRANT SELECT, REPLICATION CLIENT ON *.* TO 'not_leet'@'localhost' IDENTIFIED BY PASSWORD '*xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' |
+------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
Changing 'not_leet' and 'localhost' to match the new user you want to add, along with the password, will result in a reusable GRANT
statement to create a new user.
Of, if you want a single operation to set up and grant the limited set of privileges to users, and perhaps remove any unmerited privileges, that can be done by creating a stored procedure that encapsulates everything that you want to do. Within the body of the procedure, you'd build the GRANT
statement with dynamic SQL and/or directly manipulate the grant tables themselves.
In this recent question on Database Administrators, the poster wanted the ability for an unprivileged user to modify other users, which of course is not something that can normally be done -- a user that can modify other users is, pretty much by definition, not an unprivileged user -- however -- stored procedures provided a good solution in that case, because they run with the security context of their DEFINER
user, allowing anybody with EXECUTE
privilege on the procedure to temporarily assume escalated privileges to allow them to do the specific things the procedure accomplishes.
I learnt a easy way from code example of http://tutorial.symblog.co.uk/
1) notice the ZendeskBlueFormBundle and file location
# myproject/app/config/config.yml
imports:
- { resource: parameters.yml }
- { resource: security.yml }
- { resource: @ZendeskBlueFormBundle/Resources/config/config.yml }
framework:
2) notice Zendesk_BlueForm.emails.contact_email and file location
# myproject/src/Zendesk/BlueFormBundle/Resources/config/config.yml
parameters:
# Zendesk contact email address
Zendesk_BlueForm.emails.contact_email: [email protected]
3) notice how i get it in $client and file location of controller
# myproject/src/Zendesk/BlueFormBundle/Controller/PageController.php
public function blueFormAction($name, $arg1, $arg2, $arg3, Request $request)
{
$client = new ZendeskAPI($this->container->getParameter("Zendesk_BlueForm.emails.contact_email"));
...
}
If your grep supports -R
, do:
grep -R 'string' dir/
If not, then use find
:
find dir/ -type f -exec grep -H 'string' {} +
AdBlock blocks the facebook JS api scripts because it's related to facebook connect which is often annoying.
To write a newline use \n
not /n
the latter is just a slash and a n
Some fallback logic can be added to handle the presence of a Load Balancer.
Also, through inspection, the X-Forwarded-For
header happens to be set anyway even without a Load Balancer (possibly because of additional Kestrel layer?):
public string GetRequestIP(bool tryUseXForwardHeader = true)
{
string ip = null;
// todo support new "Forwarded" header (2014) https://en.wikipedia.org/wiki/X-Forwarded-For
// X-Forwarded-For (csv list): Using the First entry in the list seems to work
// for 99% of cases however it has been suggested that a better (although tedious)
// approach might be to read each IP from right to left and use the first public IP.
// http://stackoverflow.com/a/43554000/538763
//
if (tryUseXForwardHeader)
ip = GetHeaderValueAs<string>("X-Forwarded-For").SplitCsv().FirstOrDefault();
// RemoteIpAddress is always null in DNX RC1 Update1 (bug).
if (ip.IsNullOrWhitespace() && _httpContextAccessor.HttpContext?.Connection?.RemoteIpAddress != null)
ip = _httpContextAccessor.HttpContext.Connection.RemoteIpAddress.ToString();
if (ip.IsNullOrWhitespace())
ip = GetHeaderValueAs<string>("REMOTE_ADDR");
// _httpContextAccessor.HttpContext?.Request?.Host this is the local host.
if (ip.IsNullOrWhitespace())
throw new Exception("Unable to determine caller's IP.");
return ip;
}
public T GetHeaderValueAs<T>(string headerName)
{
StringValues values;
if (_httpContextAccessor.HttpContext?.Request?.Headers?.TryGetValue(headerName, out values) ?? false)
{
string rawValues = values.ToString(); // writes out as Csv when there are multiple.
if (!rawValues.IsNullOrWhitespace())
return (T)Convert.ChangeType(values.ToString(), typeof(T));
}
return default(T);
}
public static List<string> SplitCsv(this string csvList, bool nullOrWhitespaceInputReturnsNull = false)
{
if (string.IsNullOrWhiteSpace(csvList))
return nullOrWhitespaceInputReturnsNull ? null : new List<string>();
return csvList
.TrimEnd(',')
.Split(',')
.AsEnumerable<string>()
.Select(s => s.Trim())
.ToList();
}
public static bool IsNullOrWhitespace(this string s)
{
return String.IsNullOrWhiteSpace(s);
}
Assumes _httpContextAccessor
was provided through DI.
Select [Column Name] into [New Table] from [Source Table]
The docs mention train_test_split is just a convenience function on top of shuffle split.
I just rearranged some of their code to make my own example. Note the actual solution is the middle block of code. The rest is imports, and setup for a runnable example.
from sklearn.model_selection import ShuffleSplit
from sklearn.utils import safe_indexing, indexable
from itertools import chain
import numpy as np
X = np.reshape(np.random.randn(20),(10,2)) # 10 training examples
y = np.random.randint(2, size=10) # 10 labels
seed = 1
cv = ShuffleSplit(random_state=seed, test_size=0.25)
arrays = indexable(X, y)
train, test = next(cv.split(X=X))
iterator = list(chain.from_iterable((
safe_indexing(a, train),
safe_indexing(a, test),
train,
test
) for a in arrays)
)
X_train, X_test, train_is, test_is, y_train, y_test, _, _ = iterator
print(X)
print(train_is)
print(X_train)
Now I have the actual indexes: train_is, test_is
Maybe a bit late, but hope it hellps:
@echo off
if %ERRORLEVEL% == 0 (
msg * 1st line WORKS FINE rem You can relpace msg * with any othe operation...
goto Continue1
)
:Continue1
If exist "C:\Python31" (
msg * 2nd line WORKS FINE rem You can relpace msg * with any othe operation...
goto Continue2
)
:Continue2
If exist "C:\Python31\Lib\site-packages\PyQt4" (
msg * 3th line WORKS FINE rem You can relpace msg * with any othe operation...
goto Continue3
)
:Continue3
msg * 4th line WORKS FINE rem You can relpace msg * with any othe operation...
goto Continue4
)
:Continue4
msg * "Tutto a posto" rem You can relpace msg * with any othe operation...
pause
You can create your own custom validation method using the addMethod
function. Say you wanted to validate "dd/mm/yyyy":
$.validator.addMethod(
"australianDate",
function(value, element) {
// put your own logic here, this is just a (crappy) example
return value.match(/^\d\d?\/\d\d?\/\d\d\d\d$/);
},
"Please enter a date in the format dd/mm/yyyy."
);
And then on your form add:
$('#myForm')
.validate({
rules : {
myDate : {
australianDate : true
}
}
})
;