The way to fix this issue is not within IIS. I was trying to run my application within IIS Express within Visual Studio. I searched the web and some articles were saying to add an identity tag to the system.web tag. This is not the correct way.
The way I was able to solve this issue was to click on the project file and go to properties. Under managed pipeline, I changed the property value from classic to integrated.
This solved my issue.
Integrated application pool mode
When an application pool is in Integrated mode, you can take advantage of the integrated request-processing architecture of IIS and ASP.NET. When a worker process in an application pool receives a request, the request passes through an ordered list of events. Each event calls the necessary native and managed modules to process portions of the request and to generate the response.
There are several benefits to running application pools in Integrated mode. First the request-processing models of IIS and ASP.NET are integrated into a unified process model. This model eliminates steps that were previously duplicated in IIS and ASP.NET, such as authentication. Additionally, Integrated mode enables the availability of managed features to all content types.
Classic application pool mode
When an application pool is in Classic mode, IIS 7.0 handles requests as in IIS 6.0 worker process isolation mode. ASP.NET requests first go through native processing steps in IIS and are then routed to Aspnet_isapi.dll for processing of managed code in the managed runtime. Finally, the request is routed back through IIS to send the response.
This separation of the IIS and ASP.NET request-processing models results in duplication of some processing steps, such as authentication and authorization. Additionally, managed code features, such as forms authentication, are only available to ASP.NET applications or applications for which you have script mapped all requests to be handled by aspnet_isapi.dll.
Be sure to test your existing applications for compatibility in Integrated mode before upgrading a production environment to IIS 7.0 and assigning applications to application pools in Integrated mode. You should only add an application to an application pool in Classic mode if the application fails to work in Integrated mode. For example, your application might rely on an authentication token passed from IIS to the managed runtime, and, due to the new architecture in IIS 7.0, the process breaks your application.
Taken from: What is the difference between DefaultAppPool and Classic .NET AppPool in IIS7?
Original source: Introduction to IIS Architecture
Open the file .git/refs/heads/<your_branch_name>
, and change the hash stored there to the one where you want to move the head of your branch. Just edit and save the file with any text editor. Just make sure that the branch to modify is not the current active one.
Disclaimer: Probably not an advisable way to do it, but gets the job done.
Use a smarty template for your stuff then just set the POST array as a smarty array and open the template. In the template just echo out the array so if it passes:
if(correct){
header("Location: passed.php");
} else {
$smarty->assign("variables", $_POST);
$smarty->display("register_error.php");
exit;
}
I have not tried this yet but I am going to try it as a solution and will let you know what I find. But of course this method assumes that you are using smarty.
If not you can just recreate your form there on the error page and echo info into the form or you could send back non important data in a get from and get it
ex.
register.php?name=mr_jones&address==......
echo $_GET[name];
A rather obscure, yet potentially important case when layoutSubviews
never gets called is:
import UIKit
class View: UIView {
override class var layerClass: AnyClass { return Layer.self }
class Layer: CALayer {
override func layoutSublayers() {
// if we don't call super.layoutSublayers()...
print(type(of: self), #function)
}
}
override func layoutSubviews() {
// ... this method never gets called by the OS!
print(type(of: self), #function)
}
}
let view = View(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
I had a problem like this before, it was the gradle.properties file doesn't exist, only the gradle.properties.txt , so i went to my project folder and i copied & pasted the gradle.properties.txt file but without .txt extension then it finally worked.
library(RCurl)
library(XML)
# Download page using RCurl
# You may need to set proxy details, etc., in the call to getURL
theurl <- "http://en.wikipedia.org/wiki/Brazil_national_football_team"
webpage <- getURL(theurl)
# Process escape characters
webpage <- readLines(tc <- textConnection(webpage)); close(tc)
# Parse the html tree, ignoring errors on the page
pagetree <- htmlTreeParse(webpage, error=function(...){})
# Navigate your way through the tree. It may be possible to do this more efficiently using getNodeSet
body <- pagetree$children$html$children$body
divbodyContent <- body$children$div$children[[1]]$children$div$children[[4]]
tables <- divbodyContent$children[names(divbodyContent)=="table"]
#In this case, the required table is the only one with class "wikitable sortable"
tableclasses <- sapply(tables, function(x) x$attributes["class"])
thetable <- tables[which(tableclasses=="wikitable sortable")]$table
#Get columns headers
headers <- thetable$children[[1]]$children
columnnames <- unname(sapply(headers, function(x) x$children$text$value))
# Get rows from table
content <- c()
for(i in 2:length(thetable$children))
{
tablerow <- thetable$children[[i]]$children
opponent <- tablerow[[1]]$children[[2]]$children$text$value
others <- unname(sapply(tablerow[-1], function(x) x$children$text$value))
content <- rbind(content, c(opponent, others))
}
# Convert to data frame
colnames(content) <- columnnames
as.data.frame(content)
Edited to add:
Sample output
Opponent Played Won Drawn Lost Goals for Goals against % Won
1 Argentina 94 36 24 34 148 150 38.3%
2 Paraguay 72 44 17 11 160 61 61.1%
3 Uruguay 72 33 19 20 127 93 45.8%
...
[ -z "${DEPLOY_ENV}" ]
checks whether DEPLOY_ENV
has length equal to zero. So you could run:
if [[ -z "${DEPLOY_ENV}" ]]; then
MY_SCRIPT_VARIABLE="Some default value because DEPLOY_ENV is undefined"
else
MY_SCRIPT_VARIABLE="${DEPLOY_ENV}"
fi
# or using a short-hand version
[[ -z "${DEPLOY_ENV}" ]] && MyVar='default' || MyVar="${DEPLOY_ENV}"
# or even shorter use
MyVar="${DEPLOY_ENV:-default_value}"
#include <stdio.h>
#define MAXNUMBER 1024
int main()
{
int i;
char a[MAXNUMBER];
FILE *fp = popen("du -b /bin/bash", "r");
while((a[i++] = getc(fp))!= 9)
;
a[i] ='\0';
printf(" a is %s\n", a);
pclose(fp);
return 0;
}
HTH
Here is a solution am using with anular 6.
[readonly]="DateRelatedObject.bool_DatesEdit ? true : false"
plus above given answer
[attr.disabled]="valid == true ? true : null"
did't work for me plus be aware of using null cause it's expecting bool.
Return min and max value in tuple:
def side_values(num_list):
results_list = sorted(num_list)
return results_list[0], results_list[-1]
somelist = side_values([1,12,2,53,23,6,17])
print(somelist)
Maybe you only need a shallow copy, in that case use Object.MemberWiseClone()
.
There are good recommendations in the documentation for MemberWiseClone()
for strategies to deep copy: -
http://msdn.microsoft.com/en-us/library/system.object.memberwiseclone.aspx
https://github.com/stephenlb/geo-ip will generate a list of Valid IP Public Addresses including Localities.
'1.0.0.0/8'
to '191.0.0.0/8'
are the valid public IP Address range exclusive of the reserved Private IP Addresses as follows:
import iptools
## Private IP Addresses
private_ips = iptools.IpRangeList(
'0.0.0.0/8', '10.0.0.0/8', '100.64.0.0/10', '127.0.0.0/8',
'169.254.0.0/16', '172.16.0.0/12', '192.0.0.0/24', '192.0.2.0/24',
'192.88.99.0/24', '192.168.0.0/16', '198.18.0.0/15', '198.51.100.0/24',
'203.0.113.0/24', '224.0.0.0/4', '240.0.0.0/4', '255.255.255.255/32'
)
Generates a JSON dump of IP Addresses and associated Geo information.
Note that the valid public IP Address range is
from '1.0.0.0/8'
to '191.0.0.0/8'
excluding the reserved
Private IP Address ranges shown lower down in this readme.
docker build -t geo-ip .
docker run -e IPRANGE='54.0.0.0/30' geo-ip ## a few IPs
docker run -e IPRANGE='54.0.0.0/26' geo-ip ## a few more IPs
docker run -e IPRANGE='54.0.0.0/16' geo-ip ## a lot more IPs
docker run -e IPRANGE='0.0.0.0/0' geo-ip ## ALL IPs ( slooooowwwwww )
docker run -e IPRANGE='0.0.0.0/0' geo-ip > geo-ip.json ## ALL IPs saved to JSON File
docker run geo-ip
A little faster option for scanning all valid public addresses:
for i in $(seq 1 191); do \
docker run -e IPRANGE="$i.0.0.0/8" geo-ip; \
sleep 1; \
done
This prints less than 4,228,250,625 JSON lines to STDOUT. Here is an example of one of the lines:
{"city": "Palo Alto", "ip": "0.0.0.0", "longitude": -122.1274,
"continent": "North America", "continent_code": "NA",
"state": "California", "country": "United States", "latitude": 37.418,
"iso_code": "US", "state_code": "CA", "aso": "PubNub",
"asn": "11404", "zip_code": "94107"}
The dockerfile in the repo above will exclude non-usable IP addresses following the guide from the wikipedia article: https://en.wikipedia.org/wiki/Reserved_IP_addresses
The dockerfile imports a free public Database provided by https://www.maxmind.com/en/home
As an alternative to reading a data from a stream to a byte array, you could let the framework handle everything and just use a StreamReader
set up with an ASCII encoding to read in the string. That way you don't need to worry about getting the appropriate buffer size or larger data sizes.
using (var reader = new StreamReader(stream, Encoding.ASCII))
{
string theString = reader.ReadToEnd();
// do something with theString
}
I think your particular problem isn't how to use Glyphicons but understanding how Bootstrap files work together.
Bootstrap requires a specific file structure to work. I see from your code you have this:
<link href="bootstrap.css" rel="stylesheet" media="screen">
Your Bootstrap.css is being loaded from the same location as your page, this would create a problem if you didn't adjust your file structure.
But first, let me recommend you setup your folder structure like so:
/css <-- Bootstrap.css here
/fonts <-- Bootstrap fonts here
/img
/js <-- Bootstrap JavaScript here
index.html
If you notice, this is also how Bootstrap structures its files in its download ZIP.
You then include your Bootstrap file like so:
<link href="css/bootstrap.css" rel="stylesheet" media="screen">
or
<link href="./css/bootstrap.css" rel="stylesheet" media="screen">
or
<link href="/css/bootstrap.css" rel="stylesheet" media="screen">
Depending on your server structure or what you're going for.
The first and second are relative to your file's current directory. The second one is just more explicit by saying "here" (./) first then css folder (/css).
The third is good if you're running a web server, and you can just use relative to root notation as the leading "/" will be always start at the root folder.
So, why do this?
Bootstrap.css has this specific line for Glyphfonts:
@font-face {
font-family: 'Glyphicons Halflings';
src: url('../fonts/glyphicons-halflings-regular.eot');
src: url('../fonts/glyphicons-halflings-regular.eot?#iefix') format('embedded-opentype'), url('../fonts/glyphicons-halflings-regular.woff') format('woff'), url('../fonts/glyphicons-halflings-regular.ttf') format('truetype'), url('../fonts/glyphicons-halflings-regular.svg#glyphicons-halflingsregular') format('svg');
}
What you can see is that that Glyphfonts are loaded by going up one directory ../
and then looking for a folder called /fonts
and THEN loading the font file.
The URL address is relative to the location of the CSS file. So, if your CSS file is at the same location like this:
/fonts
Bootstrap.css
index.html
The CSS file is going one level deeper than looking for a /fonts
folder.
So, let's say the actual location of these files are:
C:\www\fonts
C:\www\Boostrap.css
C:\www\index.html
The CSS file would technically be looking for a folder at:
C:\fonts
but your folder is actually in:
C:\www\fonts
So see if that helps. You don't have to do anything 'special' to load Bootstrap Glyphicons, except make sure your folder structure is set up appropriately.
When you get that fixed, your HTML should simply be:
<span class="glyphicon glyphicon-comment"></span>
Note, you need both classes. The first class glyphicon
sets up the basic styles while glyphicon-comment
sets the specific image.
In C#, unlike java we do not have to use any method. TextBox property Text
is used to get or set its text.
Get
string username = txtusername.Text;
string password = txtpassword.Text;
Set
txtusername.Text = "my_username";
txtpassword.Text = "12345";
I do not have experience with version 7 of JBoss but with 5 I often had issues when redeploying apps which went away when I cleaned the work and tmp folder. I wrote a script for that which was executed everytime the server shut down. Maybe executing it before startup is better considering abnormal shutdowns (which weren't uncommon with Jboss 5 :))
In case you are here looking for a fast string concatenation method in Python, then you do not need a special StringBuilder class. Simple concatenation works just as well without the performance penalty seen in C#.
resultString = ""
resultString += "Append 1"
resultString += "Append 2"
See Antoine-tran's answer for performance results
The problem will be that you cannot represent 0.575 exactly as a binary floating point number (eg a double). Though I don't know exactly it seems that the representation closest is probably just a bit lower and so when rounding it uses the true representation and rounds down.
If you want to avoid this problem then use a more appropriate data type. decimal
will do what you want:
Math.Round(0.575M, 2, MidpointRounding.AwayFromZero)
Result: 0.58
The reason that 0.75 does the right thing is that it is easy to represent in binary floating point since it is simple 1/2 + 1/4 (ie 2^-1 +2^-2). In general any finite sum of powers of two can be represented in binary floating point. Exceptions are when your powers of 2 span too great a range (eg 2^100+2 is not exactly representable).
Edit to add:
Formatting doubles for output in C# might be of interest in terms of understanding why its so hard to understand that 0.575 is not really 0.575. The DoubleConverter in the accepted answer will show that 0.575 as an Exact String is 0.5749999999999999555910790149937383830547332763671875
You can see from this why rounding give 0.57.
For behavior exactly matching PHP trim
, the simplest method is to use the String#strip
method, like so:
string = " Many have tried; many have failed! "
puts "Original [#{string}]:#{string.length}"
new_string = string.strip
puts "Updated [#{new_string}]:#{new_string.length}"
Ruby also has an edit-in-place version, as well, called String.strip!
(note the trailing '!'). This doesn't require creating a copy of the string, and can be significantly faster for some uses:
string = " Many have tried; many have failed! "
puts "Original [#{string}]:#{string.length}"
string.strip!
puts "Updated [#{string}]:#{string.length}"
Both versions produce this output:
Original [ Many have tried; many have failed! ]:40
Updated [Many have tried; many have failed!]:34
I created a benchmark to test the performance of some basic uses of strip
and strip!
, as well as some alternatives. The test is this:
require 'benchmark'
string = 'asdfghjkl'
Times = 25_000
a = Times.times.map {|n| spaces = ' ' * (1+n/4); "#{spaces}#{spaces}#{string}#{spaces}" }
b = Times.times.map {|n| spaces = ' ' * (1+n/4); "#{spaces}#{spaces}#{string}#{spaces}" }
c = Times.times.map {|n| spaces = ' ' * (1+n/4); "#{spaces}#{spaces}#{string}#{spaces}" }
d = Times.times.map {|n| spaces = ' ' * (1+n/4); "#{spaces}#{spaces}#{string}#{spaces}" }
puts RUBY_DESCRIPTION
puts "============================================================"
puts "Running tests for trimming strings"
Benchmark.bm(20) do |x|
x.report("s.strip:") { a.each {|s| s = s.strip } }
x.report("s.rstrip.lstrip:") { a.each {|s| s = s.rstrip.lstrip } }
x.report("s.gsub:") { a.each {|s| s = s.gsub(/^\s+|\s+$/, "") } }
x.report("s.sub.sub:") { a.each {|s| s = s.sub(/^\s+/, "").sub(/\s+$/, "") } }
x.report("s.strip!") { a.each {|s| s.strip! } }
x.report("s.rstrip!.lstrip!:") { b.each {|s| s.rstrip! ; s.lstrip! } }
x.report("s.gsub!:") { c.each {|s| s.gsub!(/^\s+|\s+$/, "") } }
x.report("s.sub!.sub!:") { d.each {|s| s.sub!(/^\s+/, "") ; s.sub!(/\s+$/, "") } }
end
These are the results:
ruby 2.2.5p319 (2016-04-26 revision 54774) [x86_64-darwin14]
============================================================
Running tests for trimming strings
user system total real
s.strip: 2.690000 0.320000 3.010000 ( 4.048079)
s.rstrip.lstrip: 2.790000 0.060000 2.850000 ( 3.110281)
s.gsub: 13.060000 5.800000 18.860000 ( 19.264533)
s.sub.sub: 9.880000 4.910000 14.790000 ( 14.945006)
s.strip! 2.750000 0.080000 2.830000 ( 2.960402)
s.rstrip!.lstrip!: 2.670000 0.320000 2.990000 ( 3.221094)
s.gsub!: 13.410000 6.490000 19.900000 ( 20.392547)
s.sub!.sub!: 10.260000 5.680000 15.940000 ( 16.411131)
Following is an example. You can see the details http://jkssweetlife.com/configure-slf4j-working-various-logging-frameworks/ and download the full codes here.
Add following dependency to your pom if you are using maven, otherwise, just download the jar files and put on your classpath
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.7</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.7</version>
</dependency>
Configure log4j.properties
log4j.rootLogger=TRACE, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd'T'HH:mm:ss.SSS} %-5p [%c] - %m%n
Java example
public class Slf4jExample {
public static void main(String[] args) {
Logger logger = LoggerFactory.getLogger(Slf4jExample.class);
final String message = "Hello logging!";
logger.trace(message);
logger.debug(message);
logger.info(message);
logger.warn(message);
logger.error(message);
}
}
Might be a very late answer, but this is good and simple.
select * from table_name order by id desc limit 5
This query will return a set of last 5 values(last 5 rows) you 've inserted in your table
One neat engine I came across is Angel-Engine. Info from the project site:
Some users (including me) have succesfully (without any major problems) compiled it under linux.
You can parse the existing XML file into DOM and append new elements to the DOM. Very similar to what you did with creating brand new XML. I am assuming you do not have to worry about duplicate server. If you do have to worry about that, you will have to go through the elements in the DOM to check for duplicates.
DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
/* parse existing file to DOM */
Document document = documentBuilder.parse(new File("exisgint/xml/file"));
Element root = document.getDocumentElement();
for (Server newServer : Collection<Server> bunchOfNewServers){
Element server = Document.createElement("server");
/* create and setup the server node...*/
root.appendChild(server);
}
/* use whatever method to output DOM to XML (for example, using transformer like you did).*/
You can see some reports in SSMS:
Right-click the instance name / reports / standard / top sessions
You can see top CPU consuming sessions. This may shed some light on what SQL processes are using resources. There are a few other CPU related reports if you look around. I was going to point to some more DMVs but if you've looked into that already I'll skip it.
You can use sp_BlitzCache to find the top CPU consuming queries. You can also sort by IO and other things as well. This is using DMV info which accumulates between restarts.
This article looks promising.
Some stackoverflow goodness from Mr. Ozar.
edit: A little more advice... A query running for 'only' 5 seconds can be a problem. It could be using all your cores and really running 8 cores times 5 seconds - 40 seconds of 'virtual' time. I like to use some DMVs to see how many executions have happened for that code to see what that 5 seconds adds up to.
You will get the wifi mac address by using the following code, regardless whether you used a randomized address when you tried to connect to the wifi or not, and regardless whether the wifi was turned on or off.
I used a method from the link below, and added a small modification to get the exact address instead of the randomized one:
Getting MAC address in Android 6.0
public static String getMacAddr() {
StringBuilder res1 = new StringBuilder();
try {
List<NetworkInterface> all =
Collections.list(NetworkInterface.getNetworkInterfaces());
for (NetworkInterface nif : all) {
if (!nif.getName().equalsIgnoreCase("p2p0")) continue;
byte[] macBytes = nif.getHardwareAddress();
if (macBytes == null) {
continue;
}
res1 = new StringBuilder();
for (byte b : macBytes) {
res1.append(String.format("%02X:",b));
}
if (res1.length() > 0) {
res1.deleteCharAt(res1.length() - 1);
}
}
} catch (Exception ex) {
}
return res1.toString();
}
Think of "BeforeClass" as a static initializer for your test case - use it for initializing static data - things that do not change across your test cases. You definitely want to be careful about static resources that are not thread safe.
Finally, use the "AfterClass" annotated method to clean up any setup you did in the "BeforeClass" annotated method (unless their self destruction is good enough).
"Before" & "After" are for unit test specific initialization. I typically use these methods to initialize / re-initialize the mocks of my dependencies. Obviously, this initialization is not specific to a unit test, but general to all unit tests.
If the array is statically allocated, use sizeof(array) / sizeof(array[0])
If it's dynamically allocated, though, unfortunately you're out of luck as this trick will always return sizeof(pointer_type)/sizeof(array[0])
(which will be 4 on a 32 bit system with char*s) You could either a) keep a #define (or const) constant, or b) keep a variable, however.
The wording "comparison" is mildly misleading. You are not comparing for strict equality but for which string comes first in the dictionary (lexicon).
This is the feature that allows collections of strings to be sortable.
Note that this is very dependent on the active locale. For instance, here in Denmark we have a character "å" which used to be spelled as "aa" and is very distinct from two single a's (EDIT: If pronounced as "å"!). Hence Danish sorting rules treat two consequtive a's identically to an "å", which means that it goes after z. This also means that Danish dictionaries are sorted differently than English or Swedish ones.
To convert $date
from dd-mm-yyyy hh:mm:ss
to a proper MySQL datetime
I go like this:
$date = DateTime::createFromFormat('d-m-Y H:i:s',$date)->format('Y-m-d H:i:s');
The simple way to avoid this is not to use the worksheet method ShowAllData
Autofilter has the same ShowAllData method which doesn't throw an error when the filter is enabled but no filter is set
If ActiveSheet.AutoFilterMode Then ActiveSheet.AutoFilter.ShowAllData
mariadb uses by defaults UNIX_SOCKET plugin to authenticate user root. https://mariadb.com/kb/en/mariadb/unix_socket-authentication-plugin/
"Because he has identified himself to the operating system, he does not need to do it again for the database"
so you need to login as the root user on unix to login as root in mysql/mariadb:
sudo mysql
if you want to login with root from your normal unix user, you can disable the authentication plugin for root.
Beforehand you can set the root password with mysql_secure_installation (default password is blank), then to let every user authenticate as root login with:
shell$ sudo mysql -u root
[mysql] use mysql;
[mysql] update user set plugin='' where User='root';
[mysql] flush privileges;
[mysql] \q
If you are using Query builder then you may use a blow
DB::table(Newsletter Subscription)
->select('*')
->whereIn('id', $send_users_list)
->get()
If you are working with Eloquent then you can use as below
$sendUsersList = Newsletter Subscription:: select ('*')
->whereIn('id', $send_users_list)
->get();
I'm aware this question is fairly old by now, and you've most likely fixed it by now, but I'd like to post here as reference for anyone that finds this post while troubleshooting this issue is that this sort of thing won't work if your Anchor tags are in the Index.html. It needs to be in one of the components
SELECT *
FROM table_name
WHERE table_name.the_date > DATE_SUB(CURDATE(), INTERVAL 1 DAY)
Use DateTime with DateTime::format()
$datetime = new DateTime($dateTimeString);
echo $datetime->format('w');
Since you're running it from command prompt, you need to make sure your classpath is correct. If you set it already, you need to restart your terminal to re-load your system variables.
If -classpath
and -cp
are not used and CLASSPATH
is not set, the current directory is used (.
), however when running .class
files, you need to be in the folder which consist Java package name folders.
So having the .class
file in ./target/classes/com/foo/app/App.class
, you've the following possibilities:
java -cp target/classes com.foo.app.App
CLASSPATH=target/classes java com.foo.app.App
cd target/classes && java com.foo.app.App
You can check your classpath, by printing CLASSPATH
variable:
echo $CLASSPATH
echo %CLASSPATH%
which has entries separated by :
.
See also: How do I run Java .class files?
If you only need to modify the page num you can replace it:
var newUrl = location.href.replace("page="+currentPageNum, "page="+newPageNum);
Sorry, there is a loong answer, but as bash is a shell, where the main goal is to run other unix commands and react to resut code and/or output, ( commands are often piped filter, etc... ).
Storing command output in variables is something basic and fundamental.
Therefore, depending on
myPi=`echo '4*a(1)' | bc -l`
echo $myPi
3.14159265358979323844
As nesting could become heavy, parenthesis was implemented for this
myPi=$(bc -l <<<'4*a(1)')
Nested sample:
SysStarted=$(date -d "$(ps ho lstart 1)" +%s)
echo $SysStarted
1480656334
df -k /
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/dm-0 999320 529020 401488 57% /
If I just want a used value:
array=($(df -k /))
you could see an array variable:
declare -p array
declare -a array='([0]="Filesystem" [1]="1K-blocks" [2]="Used" [3]="Available" [
4]="Use%" [5]="Mounted" [6]="on" [7]="/dev/dm-0" [8]="999320" [9]="529020" [10]=
"401488" [11]="57%" [12]="/")'
Then:
echo ${array[9]}
529020
{ read foo ; read filesystem size using avail prct mountpoint ; } < <(df -k /)
echo $using
529020
The first read foo
will just skip header line, but in only one command, you will populate 7 different variables:
declare -p avail filesystem foo mountpoint prct size using
declare -- avail="401488"
declare -- filesystem="/dev/dm-0"
declare -- foo="Filesystem 1K-blocks Used Available Use% Mounted on"
declare -- mountpoint="/"
declare -- prct="57%"
declare -- size="999320"
declare -- using="529020"
Or
{ read -a head;varnames=(${head[@]//[K1% -]});varnames=(${head[@]//[K1% -]});
read ${varnames[@],,} ; } < <(LANG=C df -k /)
Then:
declare -p varnames ${varnames[@],,}
declare -a varnames=([0]="Filesystem" [1]="blocks" [2]="Used" [3]="Available" [4]="Use" [5]="Mounted" [6]="on")
declare -- filesystem="/dev/dm-0"
declare -- blocks="999320"
declare -- used="529020"
declare -- available="401488"
declare -- use="57%"
declare -- mounted="/"
declare -- on=""
Or even:
{ read foo ; read filesystem dsk[{6,2,9}] prct mountpoint ; } < <(df -k /)
declare -p mountpoint dsk
declare -- mountpoint="/"
declare -a dsk=([2]="529020" [6]="999320" [9]="401488")
(Note Used
and Blocks
is switched there: read ... dsk[6] dsk[2] dsk[9] ...
)
... will work with associative arrays too: read foo disk[total] disk[used] ...
fd
using unnamed fifo:There is an elegent way:
users=()
while IFS=: read -u $list user pass uid gid name home bin ;do
((uid>=500)) &&
printf -v users[uid] "%11d %7d %-20s %s\n" $uid $gid $user $home
done {list}</etc/passwd
Using this way (... read -u $list; ... {list}<inputfile
) leave STDIN
free for other purposes, like user interaction.
Then
echo -n "${users[@]}"
1000 1000 user /home/user
...
65534 65534 nobody /nonexistent
and
echo ${!users[@]}
1000 ... 65534
echo -n "${users[1000]}"
1000 1000 user /home/user
This could be used with static files or even /dev/tcp/xx.xx.xx.xx/yyy
with x
for ip address or hostname and y
for port number:
{
read -u $list -a head # read header in array `head`
varnames=(${head[@]//[K1% -]}) # drop illegal chars for variable names
while read -u $list ${varnames[@],,} ;do
((pct=available*100/(available+used),pct<10)) &&
printf "WARN: FS: %-20s on %-14s %3d <10 (Total: %11u, Use: %7s)\n" \
"${filesystem#*/mapper/}" "$mounted" $pct $blocks "$use"
done
} {list}< <(LANG=C df -k)
And of course with inline documents:
while IFS=\; read -u $list -a myvar ;do
echo ${myvar[2]}
done {list}<<"eof"
foo;bar;baz
alice;bob;charlie
$cherry;$strawberry;$memberberries
eof
#!/bin/bash
declare free=0 total=0 used=0
getDiskStat() {
local foo
{
read foo
read foo total used free foo
} < <(
df -k ${1:-/}
)
}
getDiskStat $1
echo $total $used $free
Nota: declare
line is not required, just for readability.
sudo cmd | grep ... | cut ...
shell=$(cat /etc/passwd | grep $USER | cut -d : -f 7)
echo $shell
/bin/bash
(Please avoid useless cat
! So this is just one fork less:
shell=$(grep $USER </etc/passwd | cut -d : -f 7)
All pipes (|
) implies forks. Where another process have to be run, accessing disk, libraries calls and so on.
So using sed
for sample, will limit subprocess to only one fork:
shell=$(sed </etc/passwd "s/^$USER:.*://p;d")
echo $shell
But for many actions, mostly on small files, Bash could do the job itself:
while IFS=: read -a line ; do
[ "$line" = "$USER" ] && shell=${line[6]}
done </etc/passwd
echo $shell
/bin/bash
or
while IFS=: read loginname encpass uid gid fullname home shell;do
[ "$loginname" = "$USER" ] && break
done </etc/passwd
echo $shell $loginname ...
Have a look at my answer to How do I split a string on a delimiter in Bash?
In order to prevent multiple forks like
myPi=$(bc -l <<<'4*a(1)'
myRay=12
myCirc=$(bc -l <<<" 2 * $myPi * $myRay ")
or
myStarted=$(date -d "$(ps ho lstart 1)" +%s)
mySessStart=$(date -d "$(ps ho lstart $$)" +%s)
This work fine, but running many forks is heavy and slow.
And commands like date
and bc
could make many operations, line by line!!
See:
bc -l <<<$'3*4\n5*6'
12
30
date -f - +%s < <(ps ho lstart 1 $$)
1516030449
1517853288
So we could use a long running background process to make many jobs, without having to initiate a new fork for each request.
Under bash, there is a built-in function: coproc
:
coproc bc -l
echo 4*3 >&${COPROC[1]}
read -u $COPROC answer
echo $answer
12
echo >&${COPROC[1]} 'pi=4*a(1)'
ray=42.0
printf >&${COPROC[1]} '2*pi*%s\n' $ray
read -u $COPROC answer
echo $answer
263.89378290154263202896
printf >&${COPROC[1]} 'pi*%s^2\n' $ray
read -u $COPROC answer
echo $answer
5541.76944093239527260816
As bc
is ready, running in background and I/O are ready too, there is no delay, nothing to load, open, close, before or after operation. Only the operation himself! This become a lot quicker than having to fork to bc
for each operation!
Border effect: While bc
stay running, they will hold all registers, so some variables or functions could be defined at initialisation step, as first write to ${COPROC[1]}
, just after starting the task (via coproc
).
newConnector
You may found my newConnector
function on GitHub.Com or on my own site (Note on GitHub: there are two files on my site. Function and demo are bundled into one uniq file which could be sourced for use or just run for demo.)
Sample:
source shell_connector.sh
tty
/dev/pts/20
ps --tty pts/20 fw
PID TTY STAT TIME COMMAND
29019 pts/20 Ss 0:00 bash
30745 pts/20 R+ 0:00 \_ ps --tty pts/20 fw
newConnector /usr/bin/bc "-l" '3*4' 12
ps --tty pts/20 fw
PID TTY STAT TIME COMMAND
29019 pts/20 Ss 0:00 bash
30944 pts/20 S 0:00 \_ /usr/bin/bc -l
30952 pts/20 R+ 0:00 \_ ps --tty pts/20 fw
declare -p PI
bash: declare: PI: not found
myBc '4*a(1)' PI
declare -p PI
declare -- PI="3.14159265358979323844"
The function myBc
lets you use the background task with simple syntax, and for date:
newConnector /bin/date '-f - +%s' @0 0
myDate '2000-01-01'
946681200
myDate "$(ps ho lstart 1)" boottime
myDate now now ; read utm idl </proc/uptime
myBc "$now-$boottime" uptime
printf "%s\n" ${utm%%.*} $uptime
42134906
42134906
ps --tty pts/20 fw
PID TTY STAT TIME COMMAND
29019 pts/20 Ss 0:00 bash
30944 pts/20 S 0:00 \_ /usr/bin/bc -l
32615 pts/20 S 0:00 \_ /bin/date -f - +%s
3162 pts/20 R+ 0:00 \_ ps --tty pts/20 fw
From there, if you want to end one of background processes, you just have to close its fd:
eval "exec $DATEOUT>&-"
eval "exec $DATEIN>&-"
ps --tty pts/20 fw
PID TTY STAT TIME COMMAND
4936 pts/20 Ss 0:00 bash
5256 pts/20 S 0:00 \_ /usr/bin/bc -l
6358 pts/20 R+ 0:00 \_ ps --tty pts/20 fw
which is not needed, because all fd close when the main process finishes.
Without a GROUP BY clause, any summation will roll all rows up into a single row, so your query will indeed not work. If you grouped by, say, name, and ordered by sum(c_counts+f_counts), then you might get some useful results. But you would have to group by something.
I would do it in the Initialize event of the controller like this...
protected override void Initialize(System.Web.Routing.RequestContext requestContext)
{
base.Initialize(requestContext);
const string culture = "en-US";
CultureInfo ci = CultureInfo.GetCultureInfo(culture);
Thread.CurrentThread.CurrentCulture = ci;
Thread.CurrentThread.CurrentUICulture = ci;
}
Hat tip to Adam Bien if you don't want to use createQuery
with a String
and want type safety:
@PersistenceContext EntityManager em; public List<ConfigurationEntry> allEntries() { CriteriaBuilder cb = em.getCriteriaBuilder(); CriteriaQuery<ConfigurationEntry> cq = cb.createQuery(ConfigurationEntry.class); Root<ConfigurationEntry> rootEntry = cq.from(ConfigurationEntry.class); CriteriaQuery<ConfigurationEntry> all = cq.select(rootEntry); TypedQuery<ConfigurationEntry> allQuery = em.createQuery(all); return allQuery.getResultList(); }
http://www.adam-bien.com/roller/abien/entry/selecting_all_jpa_entities_as
Solution for Swift 2:
let singleTapGesture = UITapGestureRecognizer(target: self, action: #selector(handleSingleTap))
singleTapGesture.numberOfTapsRequired = 1 // Optional for single tap
view.addGestureRecognizer(singleTapGesture)
let doubleTapGesture = UITapGestureRecognizer(target: self, action: #selector(handleDoubleTap))
doubleTapGesture.numberOfTapsRequired = 2
view.addGestureRecognizer(doubleTapGesture)
singleTapGesture.requireGestureRecognizerToFail(doubleTapGesture)
Do you mean that you've got code like
if(map.containsKey(key)) doSomethingWith(map.get(key))
all over the place ? Then you should simply check whether map.get(key)
returned null and that's it.
By the way, HashMap doesn't throw exceptions for missing keys, it returns null instead. The only case where containsKey
is needed is when you're storing null values, to distinguish between a null value and a missing value, but this is usually considered bad practice.
I had the same problem I used the solution offered above - I dropped the SYNONYM, created a VIEW with the same name as the synonym. it had a select using the dblink , and gave GRANT SELECT to the other schema It worked great.
You could use what sep16 on php.net recommends:
<?php
parse_str(implode('&', array_slice($argv, 1)), $_GET);
?>
It behaves exactly like you'd expect with cgi-php.
$ php -f myfile.php type=daily a=1 b[]=2 b[]=3
will set $_GET['type']
to 'daily'
, $_GET['a']
to '1'
and $_GET['b']
to array('2', '3')
.
Have you included the statement include ("fileName.php");
?
Are you sure that file is in the correct directory?
The solution of Brad Smith worked for me, but I also had to remove the CODE_SIGN_IDENTITY field to make it work.
My site faces same issue too.
Using Facebook debug tool is no help at all. Fetch new data but not IMAGE CACHE.
I forced facebook to clear IMAGE CACHE by add www. into image url. In your case is remove www. and config web server redirect.
add/remove www. in image url should solve the problem
Unless somefunction
is a very bad coded legacy function, you shouldn't need what you're asking.
Use multiple except
clause to handle in different ways different exceptions:
try:
someFunction()
except ValueError:
# do something
except ZeroDivision:
# do something else
The main point is that you shouldn't catch generic exception, but only the ones that you need to. I'm sure that you don't want to shadow unexpected errors or bugs.
VARCHAR can store up to 2000 bytes of characters while VARCHAR2 can store up to 4000 bytes of characters.
If we declare datatype as VARCHAR then it will occupy space for NULL values. In the case of VARCHAR2 datatype, it will not occupy any space for NULL values. e.g.,
name varchar(10)
will reserve 6 bytes of memory even if the name is 'Ravi__', whereas
name varchar2(10)
will reserve space according to the length of the input string. e.g., 4 bytes of memory for 'Ravi__'.
Here, _ represents NULL.
NOTE: varchar will reserve space for null values and varchar2 will not reserve any space for null values.
I realize this question is fairly old, but wanted to share a quick demo of group transforms, paths/shapes, and relative positioning, for anyone else who found their way here looking for more info:
in my case, the war file generated didn't pick up the properties file so had to clean install again in IntelliJ editor.
I use a function to store cookies with a custom expire time in days:
// use it like: writeCookie("mycookie", "1", 30)
// this will set a cookie for 30 days since now
function writeCookie(name,value,days) {
if (days) {
var date = new Date();
date.setTime(date.getTime()+(days*24*60*60*1000));
var expires = "; expires="+date.toGMTString();
}
else var expires = "";
document.cookie = name+"="+value+expires+"; path=/";
}
<script type="text/javascript" src='http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js?ver=1.3.2'></script> <script type="text/javascript"> $(document).ready(function() { function myDate(){ var now = new Date(); var outHour = now.getHours(); if (outHour >12){newHour = outHour-12;outHour = newHour;} if(outHour<10){document.getElementById('HourDiv').innerHTML="0"+outHour;} else{document.getElementById('HourDiv').innerHTML=outHour;} var outMin = now.getMinutes(); if(outMin<10){document.getElementById('MinutDiv').innerHTML="0"+outMin;} else{document.getElementById('MinutDiv').innerHTML=outMin;} var outSec = now.getSeconds(); if(outSec<10){document.getElementById('SecDiv').innerHTML="0"+outSec;} else{document.getElementById('SecDiv').innerHTML=outSec;}} myDate(); setInterval(function(){ myDate();}, 1000); }); </script> <style> body {font-family:"Comic Sans MS", cursive;} h1 {text-align:center;background: gray;color:#fff;padding:5px;padding-bottom:10px;} #Content {margin:0 auto;border:solid 1px gray;width:140px;display:table;background:gray;} #HourDiv, #MinutDiv, #SecDiv {float:left;color:#fff;width:40px;text-align:center;font-size:25px;} span {float:left;color:#fff;font-size:25px;} </style> <div id="clockDiv"></div> <h1>My jQery Clock</h1> <div id="Content"> <div id="HourDiv"></div><span>:</span><div id="MinutDiv"></div><span>:</span><div id="SecDiv"></div> </div>
A simple two lines of code works for me.
dataGridView.DataSource = dataTable;
dataGridView.AutoResizeColumns();
Sometimes this problem happens when you upload/download the fonts using the wrong FTP method. Fonts must be FTP-ed using binary method, not ASCII. (Depending on your mood, it may feel counterintuitive, lol). If you ftp the font files using ASCII method, you can get this error message. If you ftp your files with an 'auto' method, and you get this error message, try ftp forcing the binary method.
I was able to recover my files from the following location:
C:\Users\<yourusername>\Documents\SQL Server Management Studio\Backup Files\Solution1
There should be different recovery files per tab. I'd say look for the files for the date you lost them.
You can use:
type text1.txt >> combine.txt
echo >> combine.txt
type text2.txt >> combine.txt
or something like this:
echo blah >> combine.txt
echo blah2 >> combine.txt
echo >> combine.txt
echo other >> combine.txt
Angular Concepts
imports
makes the exported declarations of other modules available in the current moduledeclarations
are to make directives (including components and pipes) from the current module available to other directives in the current module. Selectors of directives, components or pipes are only matched against the HTML if they are declared or imported.providers
are to make services and values known to DI (dependency injection). They are added to the root scope and they are injected to other services or directives that have them as dependency.A special case for providers
are lazy loaded modules that get their own child injector. providers
of a lazy loaded module are only provided to this lazy loaded module by default (not the whole application as it is with other modules).
For more details about modules see also https://angular.io/docs/ts/latest/guide/ngmodule.html
exports
makes the components, directives, and pipes available in modules that add this module to imports
. exports
can also be used to re-export modules such as CommonModule and FormsModule, which is often done in shared modules.
entryComponents
registers components for offline compilation so that they can be used with ViewContainerRef.createComponent()
. Components used in router configurations are added implicitly.
TypeScript (ES2015) imports
import ... from 'foo/bar'
(which may resolve to an index.ts
) are for TypeScript imports. You need these whenever you use an identifier in a typescript file that is declared in another typescript file.
Angular's @NgModule()
imports
and TypeScript import
are entirely different concepts.
See also jDriven - TypeScript and ES6 import syntax
Most of them are actually plain ECMAScript 2015 (ES6) module syntax that TypeScript uses as well.
As oliver writes:
add_header
works as well withproxy_pass
as without.
However, as Shane writes, as of Nginx 1.7.5, you must pass always
in order to get add_header
to work for error responses, like so:
add_header X-Upstream $upstream_addr always;
Use sprintf()
:
int someInt = 368;
char str[12];
sprintf(str, "%d", someInt);
All numbers that are representable by int
will fit in a 12-char-array without overflow, unless your compiler is somehow using more than 32-bits for int
. When using numbers with greater bitsize, e.g. long
with most 64-bit compilers, you need to increase the array size—at least 21 characters for 64-bit types.
@JSideris, sample code for getting insertedId.
db.collection(COLLECTION).insertOne(data, (err, result) => {
if (err)
return err;
else
return result.insertedId;
});
ng set --global defaults.styleExt=scss
is deprecated since ng6. You will get this message:
get/set have been deprecated in favor of the config command
You should use:
ng config schematics.@schematics/angular:component '{ styleext: "scss"}'
If you want to target a specific project (replace {project} with your project's name):
ng config projects.{project}.schematics.@schematics/angular:component '{ styleext: "scss"}'
Check this out! It was built no longer ago in 2014.
Get a list of country/state/city in a hierarchy using geonames webservice
I also use Stefan Petre’s http://www.eyecon.ro/bootstrap-datepicker and it does not work with Bootstrap 3 without modification. Note that http://eternicode.github.io/bootstrap-datepicker/ is a fork of Stefan Petre's code.
You have to change your markup (the sample markup will not work) to use the new CSS and form grid layout in Bootstrap 3. Also, you have to modify some CSS and JavaScript in the actual bootstrap-datepicker implementation.
Here is my solution:
<div class="form-group row">
<div class="col-xs-8">
<label class="control-label">My Label</label>
<div class="input-group date" id="dp3" data-date="12-02-2012" data-date-format="mm-dd-yyyy">
<input class="form-control" type="text" readonly="" value="12-02-2012">
<span class="input-group-addon"><i class="glyphicon glyphicon-calendar"></i></span>
</div>
</div>
</div>
CSS changes in datepicker.css on lines 176-177:
.input-group.date .input-group-addon i,
.input-group.date .input-group-addon i {
Javascript change in datepicker-bootstrap.js on line 34:
this.component = this.element.is('.date') ? this.element.find('.input-group-addon') : false;
UPDATE
Using the newer code from http://eternicode.github.io/bootstrap-datepicker/ the changes are as follows:
CSS changes in datepicker.css on lines 446-447:
.input-group.date .input-group-addon i,
.input-group.date .input-group-addon i {
Javascript change in datepicker-bootstrap.js on line 46:
this.component = this.element.is('.date') ? this.element.find('.input-group-addon, .btn') : false;
Finally, the JavaScript to enable the datepicker (with some options):
$(".input-group.date").datepicker({ autoclose: true, todayHighlight: true });
Tested with Bootstrap 3.0 and JQuery 1.9.1. Note that this fork is better to use than the other as it is more feature rich, has localization support and auto-positions the datepicker based on the control position and window size, avoiding the picker going off the screen which was a problem with the older version.
From the docs:
_trackTrans() Sends both the transaction and item data to the Google Analytics server. This method should be called after _trackPageview(), and used in conjunction with the _addItem() and addTrans() methods. It should be called after items and transaction elements have been set up.
So, according to the docs, the items get sent when you call trackTrans(). Until you do, you can add items, but the transaction will not be sent.
Edit: Further reading led me here:
http://www.analyticsmarket.com/blog/edit-ecommerce-data
Where it clearly says you can start another transaction with an existing ID. When you commit it, the new items you listed will be added to that transaction.
I got this error in the context of angular tree control. In my case it was the tree options. I was returning treeOptions() from a function. It was always returning the same object. But Angular magically thinks that its a new object and then cause a digest cycle to kick off. Causing a recursion of digests. The solution was to bind the treeOptions to scope. And assign it just once.
// Following is angular 2.0 directive for window re size that adjust scroll bar for give element as per your tag
---- angular 2.0 window resize directive.
import { Directive, ElementRef} from 'angular2/core';
@Directive({
selector: '[resize]',
host: { '(window:resize)': 'onResize()' } // Window resize listener
})
export class AutoResize {
element: ElementRef; // Element that associated to attribute.
$window: any;
constructor(_element: ElementRef) {
this.element = _element;
// Get instance of DOM window.
this.$window = angular.element(window);
this.onResize();
}
// Adjust height of element.
onResize() {
$(this.element.nativeElement).css('height', (this.$window.height() - 163) + 'px');
}
}
Arduino sketches are written in C++.
Here is a typical construct you'll encounter:
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
...
lcd.begin(16, 2);
lcd.print("Hello, World!");
That's C++, not C.
Hence do yourself a favor and learn C++. There are plenty of books and online resources available.
Another option, in addition to using OPENQUERY and xp_cmdshell, is to use SQLCLR (SQL Server's "CLR Integration" feature). Not only is the SQLCLR option more secure than those other two methods, but there is also the potential benefit of being able to call the stored procedure in the current session such that it would have access to any session-based objects or settings, such as:
This can be achieved by using "context connection = true;" as the ConnectionString. Just keep in mind that all other restrictions placed on T-SQL User-Defined Functions will be enforced (i.e. cannot have any side-effects).
If you use a regular connection (i.e. not using the context connection), then it will operate as an independent call, just like it does when using the OPENQUERY and xp_cmdshell methods.
HOWEVER, please keep in mind that if you will be using a function that calls a stored procedure (regardless of which of the 3 noted methods you use) in a statement that affects more than 1 row, then the behavior cannot be expected to run once per row. As @MartinSmith mentioned in a comment on @MatBailie's answer, the Query Optimizer does not guarantee either the timing or number of executions of functions. But if you are using it in a SET @Variable = function();
statement or SELECT * FROM function();
query, then it should be ok.
An example of using a .NET / C# SQLCLR user-defined function to execute a stored procedure is shown in the following article (which I wrote):
Stairway to SQLCLR Level 2: Sample Stored Procedure and Function
Instead of creating strange things, you can just filter()
and then map()
your result.
This is much more readable and sure. Streams will make it in only one loop.
Try changing your security mode to "transport".
You have a mismatch between the security tag and the transport tag.
You can simply use the WebDriver
object, and access to the page source code via its @property
field page_source
...
Try this code snippet :-)
from selenium import webdriver
driver = webdriver.Firefox('path/to/executable')
driver.get('https://some-domain.com')
source = driver.page_source
if 'stuff' in source:
print('found...')
else:
print('not in source...')
$("#DateOfBirth").datepicker({
yearRange: "-100:+0",
changeMonth: true,
changeYear: true,
});
yearRange: '1950:2013', // specifying a hard coded year range or this way
yearRange: "-100:+0", // last hundred years
It will help to show drop down for year and month selection.
Alternatively You can use:
mystring = 'banana'
number = mystring.count('a')
Here are the few things that I found regarding this topic.
During compilation, the compiler tries to find classes that are used in the code from the .* import and the corresponding byte code will be generated by selecting the used classes from .* import. So the byte code of using .* import or .class names import will be same and the runtime performance will also be the same because of the same byte code.
In each compilation, the compiler has to scan all the classes of .* package to match the classes that are actually used in the code. So, code with .* import takes more time during the compilation process as compared to using .class name imports.
Using .* import helps to make code more cleaner
Using .* import can create ambiguity when we use two classes of the same name from two different packages. Eg, Date is available in both packages.
import java.util.*;
import java.sql.*;
public class DateDemo {
private Date utilDate;
private Date sqlDate;
}
For me was a declaration incomplete. For example:
var isInverted: Bool
Instead the correct way:
var isInverted: Bool = false
I have been using Atlantis SQL Enywhere, a free software, for almost 6 months and has been working really well. Works with SQL 2005 and SQL 2008 versions. I am really impressed with its features and keyboard shortcuts are similar to VS, so makes the transition really smooth to a new editor.
Some of the features that are worth mentioning:
All these features have saved me lot of time.
8.3.5.8 If the type of a parameter includes a type of the form “pointer to array of unknown bound of T” or “reference to array of unknown bound of T,” the program is ill-formed
Just you need to desc with asc. Write the query like below. It will return the values in ascending order.
SELECT * FROM table GROUP BY m_id ORDER BY m_id asc;
If You want to open dialogue window in browser to save, not open with PDF browser viewer (I was looking for this solution for a while), You should use 'D':
$pdf->Output('name.pdf', 'D');
Here it is:
def put4ChannelImageOn4ChannelImage(back, fore, x, y):
rows, cols, channels = fore.shape
trans_indices = fore[...,3] != 0 # Where not transparent
overlay_copy = back[y:y+rows, x:x+cols]
overlay_copy[trans_indices] = fore[trans_indices]
back[y:y+rows, x:x+cols] = overlay_copy
#test
background = np.zeros((1000, 1000, 4), np.uint8)
background[:] = (127, 127, 127, 1)
overlay = cv2.imread('imagee.png', cv2.IMREAD_UNCHANGED)
put4ChannelImageOn4ChannelImage(background, overlay, 5, 5)
run cmd.exe
and do the following:
> cd "long path name"
> command
Then command.com will come up and display only short paths.
Hope this helps:
// Export (file name: my-functions.js)
export const MyFunction1 = () => {}
export const MyFunction2 = () => {}
export const MyFunction3 = () => {}
// if using `eslint` (airbnb) then you will see warning, so do this:
const MyFunction1 = () => {}
const MyFunction2 = () => {}
const MyFunction3 = () => {}
export {MyFunction1, MyFunction2, MyFunction3};
// Import
import * as myFns from "./my-functions";
myFns.MyFunction1();
myFns.MyFunction2();
myFns.MyFunction3();
// OR Import it as Destructured
import { MyFunction1, MyFunction2, MyFunction3 } from "./my-functions";
// AND you can use it like below with brackets (Parentheses) if it's a function
// AND without brackets if it's not function (eg. variables, Objects or Arrays)
MyFunction1();
MyFunction2();
Write the following method:
public boolean isAlertPresent() {
try {
driver.switchTo().alert();
return true;
} // try
catch (Exception e) {
return false;
} // catch
}
Now, you can check whether alert is present or not by using the method written above as below:
if (isAlertPresent()) {
driver.switchTo().alert();
driver.switchTo().alert().accept();
driver.switchTo().defaultContent();
}
Query for just a single known column:
session.query(MyTable.col1).count()
<div class="row" *ngIf="teamMembers?.length > 0">
This checks first if teamMembers
has a value and if teamMembers
doesn't have a value, it doesn't try to access length
of undefined
because the first part of the condition already fails.
I was able to fix it with the help of following headers
Access-Control-Allow-Origin
Access-Control-Allow-Headers
Access-Control-Allow-Credentials
Access-Control-Allow-Methods
If you are on Nodejs, here is the code you can copy/paste.
app.use((req, res, next) => {
res.header('Access-Control-Allow-Origin','*');
res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');
res.header('Access-Control-Allow-Credentials', true);
res.header('Access-Control-Allow-Methods', 'GET, POST, PUT, PATCH');
next();
});
Try this, loading data via ajax
and displaying through return statement.
<script type="text/javascript">
function closeWindow(){
var Data = $.ajax({
type : "POST",
url : "file.txt", //loading a simple text file for sample.
cache : false,
global : false,
async : false,
success : function(data) {
return data;
}
}).responseText;
return "Are you sure you want to leave the page? You still have "+Data+" items in your shopping cart";
}
window.onbeforeunload = closeWindow;
</script>
Please see if below can help you
Class Post_Sales
Public Shared Sub Post_sales()
Dim ITM_ID As Integer
Dim SLS_QTY As Integer
Dim SLS_PRC As Double
Dim SLS_AMT As Double
Dim DSPL_RCT As String
Dim TAX_CODE As Integer
'Format the current date and send it to a textbox
Form1.TextBox6.Text = System.DateTime.Now.ToString((" yyyy-MM-dd"))
'Open Connection
Dim con As New SqlConnection("Initial Catalog=Your Database here;Data source=.;Network Library=DBMSSOCN;User ID=sa;Password=")
con.Open()
'Insert Records into the database
For Each rw As DataGridViewRow In Form1.DataGridView1.Rows
ITM_ID = rw.Cells("Column1").Value
DSPL_RCT = rw.Cells("Column2").Value
SLS_QTY = rw.Cells("Column3").Value
SLS_PRC = rw.Cells("Column4").Value
SLS_AMT = rw.Cells("Column5").Value
TAX_CODE = rw.Cells("Column6").Value
Dim cmd As New SqlCommand("INSERT INTO DAY_PLUSALES (DT,ITM_ID,DSPL_RCT,SLS_QTY,SLS_PRC,SLS_AMT,TAX_CODE) values ('" & Form1.TextBox6.Text & "','" & ITM_ID & "','" & DSPL_RCT & "','" & SLS_QTY & "','" & SLS_PRC & "','" & SLS_AMT & "','" & TAX_CODE & "')", con)
cmd.ExecuteNonQuery()
Next
con.Close()
MessageBox.Show("Records Added to the SQL Database successfully!", "Records Updated ")
End Sub
End Class
It seems that you are looking to parse commandline arguments into your bash script. I have searched for this recently myself. I came across the following which I think will assist you in parsing the arguments:
http://rsalveti.wordpress.com/2007/04/03/bash-parsing-arguments-with-getopts/
I added the snippet below as a tl;dr
#using : after a switch variable means it requires some input (ie, t: requires something after t to validate while h requires nothing.
while getopts “ht:r:p:v” OPTION
do
case $OPTION in
h)
usage
exit 1
;;
t)
TEST=$OPTARG
;;
r)
SERVER=$OPTARG
;;
p)
PASSWD=$OPTARG
;;
v)
VERBOSE=1
;;
?)
usage
exit
;;
esac
done
if [[ -z $TEST ]] || [[ -z $SERVER ]] || [[ -z $PASSWD ]]
then
usage
exit 1
fi
./script.sh -t test -r server -p password -v
You can use the unicode of a non breaking space :
p:before { content: "\00a0 "; }
See JSfiddle demo
[style improved by @Jason Sperske]
use the aria2 :
aria2c -x 16 [url]
# |
# |
# |
# ----> the number of connections
I love it !!
I faced the same issue. Tried adding the US_export_policy.jar
and local_policy.jar
in the java security folder first but the issue persisted. Then added the below in java_opts
inside tomcat setenv.sh
file and it worked.
-Djdk.tls.ephemeralDHKeySize=2048
Please check this link for further info
When you want to fetch max value of a date column from dataframe, just the value without object type or Row object information, you can refer to below code.
table = "mytable"
max_date = df.select(max('date_col')).first()[0]
2020-06-26
instead of Row(max(reference_week)=datetime.date(2020, 6, 26))
I think there are more solutions!
You can start the app, and here are 3 things you can do:
Settings
> Manage License...
> Remove License
, and that removes for all Jetbrains products*.File
> Close Project
, and follow the first step.Help
> Register...
> Remove license
.*In case you have a license for a pack of products. If not, you have to remove the license per product individually. Check the 3rd step.
You can use single command pgrep as well (doesn't require you to use pipes and multiple commands):
pgrep -fl java
Use the command dir
to list all the directories and files in a directory; ls
is a unix command.
Th easiest way to this is var id = $(this).val(); from inside an event like on change.
You could use .find("is")
, it would return position of "is" in the string
or use .start() from re
>>> re.search("is", String).start()
2
Actually its match "is" from "This"
If you need to match per word, you should use \b
before and after "is", \b
is the word boundary.
>>> re.search(r"\bis\b", String).start()
5
>>>
for more info about python regular expressions, docs here
If you have a key that is repeated for each row, then you can produce a cartesian product using merge (like you would in SQL).
from pandas import DataFrame, merge
df1 = DataFrame({'key':[1,1], 'col1':[1,2],'col2':[3,4]})
df2 = DataFrame({'key':[1,1], 'col3':[5,6]})
merge(df1, df2,on='key')[['col1', 'col2', 'col3']]
Output:
col1 col2 col3
0 1 3 5
1 1 3 6
2 2 4 5
3 2 4 6
See here for the documentation: http://pandas.pydata.org/pandas-docs/stable/merging.html#brief-primer-on-merge-methods-relational-algebra
One thing I've used with good results is the following (I don't know if its mentioned already because I can't remember its name).
You precompute a table T with a random number for each character in your key's alphabet [0,255]. You hash your key 'k0 k1 k2 ... kN' by taking T[k0] xor T[k1] xor ... xor T[kN]. You can easily show that this is as random as your random number generator and its computationally very feasible and if you really run into a very bad instance with lots of collisions you can just repeat the whole thing using a fresh batch of random numbers.
If it is the basic JavaScript split function, look at documentation, JavaScript split() Method.
Basically, you just do this:
var array = myString.split(' -- ')
Then your two values are stored in the array - you can get the values like this:
var firstValue = array[0];
var secondValue = array[1];
MP3 files have headers you need to respect.
You could ether use a library like Open Source Audio Library Project and write a tool around it. Or you can use a tool that understands mp3 files like Audacity.
example code:
.limited-text{_x000D_
white-space: nowrap;_x000D_
width: 400px;_x000D_
overflow: hidden;_x000D_
text-overflow: ellipsis;_x000D_
}
_x000D_
<p class="limited-text">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ut odio temporibus voluptas error distinctio hic quae corrupti vero doloribus optio! Inventore ex quaerat modi blanditiis soluta maiores illum, ab velit.</p>_x000D_
_x000D_
_x000D_
Explanation with an example:
Consider you have a game (iso) image in your computer.
When you run
(mount your image as a virtual drive), a virtual drive is created with all the game contents in the virtual drive and the game installation file is automatically launched. [Running your docker image - creating a container and then starting it.]
But when you stop
(similar to docker stop) it, the virtual drive still exists but stopping all the processes. [As the container exists till it is not deleted]
And when you do start
(similar to docker start), from the virtual drive the games files start its execution. [starting the existing container]
In this example - The game image is your Docker image and virtual drive is your container.
bootstrap comes with clas btn-lg http://getbootstrap.com/components/#btn-dropdowns-sizing
<div class="btn btn-default btn-block">
Active
</div>
but if you want to have the button of the width of your column / container add btn-block
<div class="btn btn-default btn-lg">
Active
</div>
However this will expand to 100% so make surt ethat you will wrap your button in certain amount of columns e.g. then you know its always stays 3 columns until xs screen
<div class="col-sm-3">
<div class="btn btn-default btn-block">
Active
</div>
</div>
you can also do this
$model->hidden1 = 'your value';// better put it on controller
$form->field($model, 'hidden1')->hiddenInput()->label(false);
this is a better option if you set value on controller
$model = new SomeModelName();
if ($model->load(Yii::$app->request->post()) && $model->save()) {
return $this->redirect(['view', 'id' => $model->group_id]);
} else {
$model->hidden1 = 'your value';
return $this->render('create', [
'model' => $model,
]);
}
ES6 solution
Math.max(...array.map(function(o){return o.y;}))
For more details see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/max
<TABLE COLS="3" border="0" cellspacing="0" cellpadding="0">
<TR style="vertical-align:top">
<TD>
<!-- The log text-box -->
<div style="height:800px; width:240px; border:1px solid #ccc; font:16px/26px Georgia, Garamond, Serif; overflow:auto;">
Log:
</div>
</TD>
<TD>
<!-- The 2nd column -->
</TD>
<TD>
<!-- The 3rd column -->
</TD>
</TR>
</TABLE>
It says that it requires zip extension
laravel/installer v1.4.0 requires ext-zip...
Install using (to install the default version):
sudo apt install php-zip
Or, if you're running a specific version of PHP:
# For php v7.0
sudo apt-get install php7.0-zip
# For php v7.1
sudo apt-get install php7.1-zip
# For php v7.2
sudo apt-get install php7.2-zip
# For php v7.3
sudo apt-get install php7.3-zip
# For php v7.4
sudo apt-get install php7.4-zip
You may use simplehtmldom. Most of the jQuery selectors are supported in simplehtmldom. An example is given below
// Create DOM from URL or file
$html = file_get_html('http://www.google.com/');
// Find all images
foreach($html->find('img') as $element)
echo $element->src . '<br>';
// Find all links
foreach($html->find('a') as $element)
echo $element->href . '<br>';
Most of the answers for this question can not helped me in 2020.
This notification from download site of Oracle may be the reason:
Important Oracle JDK License Update
The Oracle JDK License has changed for releases starting April 16, 2019.
I try to google a little bit and those tutorials below helped me a lot.
Remove completely the previous version of JVM installed on your PC.
sudo update-alternatives --remove-all java
sudo update-alternatives --remove-all javac
sudo update-alternatives --remove-all javaws
# /usr/lib/jvm/jdk1.7.0 is the path you installed the previous version of JVM on your PC
sudo rm -rf /usr/lib/jvm/jdk1.7.0
Check to see whether java is uninstalled or not
java -version
1.8.0_251
. Pay attention to this value, you may need it to edit commands in this answer when Java 8 is upgraded to another version.cd /usr/lib/jvm
sudo tar xzf ~/Downloads/jdk-8u251-linux-x64.tar.gz
sudo gedit /etc/environment
:/usr/lib/jvm/jdk1.8.0_251/bin:/usr/lib/jvm/jdk1.8.0_251/jre/bin
J2SDKDIR="/usr/lib/jvm/jdk1.8.0_251"
J2REDIR="/usr/lib/jvm/jdk1.8.0_251/jre"
JAVA_HOME="/usr/lib/jvm/jdk1.8.0_251"
sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jdk1.8.0_251/bin/java" 0
sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/lib/jvm/jdk1.8.0_251/bin/javac" 0
sudo update-alternatives --set java /usr/lib/jvm/jdk1.8.0_251/bin/java
sudo update-alternatives --set javac /usr/lib/jvm/jdk1.8.0_251/bin/javac
update-alternatives --list java
update-alternatives --list javac
That's not how you send file on postman. What you did is sending a string which is the path of your image, nothing more.
What you should do is;
You're ready to go.
In your Django view,
from rest_framework.views import APIView
from rest_framework.parsers import MultiPartParser
from rest_framework.decorators import parser_classes
@parser_classes((MultiPartParser, ))
class UploadFileAndJson(APIView):
def post(self, request, format=None):
thumbnail = request.FILES["file"]
info = json.loads(request.data['info'])
...
return HttpResponse()
Well, since the date of this question post, a Python library addressed this topic. pynput library, from Moses Palmer, is GREAT to catch keyboard and mouse events in a very simple way.
(mind the missing 'i' in pynput - I missed it too... ;-) )
If you're doing something like
for /l %%i in (1,1,500) do @echo %time%
or
if foo (
echo %time%
do_something
echo %time%
)
then you could simply put a setlocal enabledelayedexpansion
at the beginning of your batch file and use !time!
instead of %time%
which gets evaluated on execution, not on parsing the line (which includes complete blocks enclosed in parentheses).
There are many ways to update your path. Jun1st answer works great. Another method is to augment your .bash_profile
to have:
export PATH="/usr/local/bin:/usr/local/sbin:~/bin:$PATH"
The line above places /usr/local/bin
and /usr/local/sbin
in front of your $PATH
. Once you source your .bash_profile
or start a new terminal you can verify your path by echo'ing it out.
$ echo $PATH
/usr/local/bin:/usr/local/sbin:/Users/<your account>/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin
Once satisfied with the result running $ brew doctor
again should no longer produce your error.
This blog post helped me out in resolving issues I ran into. http://moncefbelyamani.com/how-to-install-xcode-homebrew-git-rvm-ruby-on-mac/
Would you be satisfied with a Map
from Jackson?
ObjectMapper objectMapper = new ObjectMapper();
Map<String, Object> map = objectMapper.readValue(jsonString, new TypeReference<HashMap<String,Object>>(){});
Or maybe a JsonNode
?
JsonNode jsonNode = objectMapper.readTree(String jsonString)
Use actionListener
if you want have a hook before the real business action get executed, e.g. to log it, and/or to set an additional property (by <f:setPropertyActionListener>
), and/or to have access to the component which invoked the action (which is available by ActionEvent
argument). So, purely for preparing purposes before the real business action gets invoked.
The actionListener
method has by default the following signature:
import javax.faces.event.ActionEvent;
// ...
public void actionListener(ActionEvent event) {
// ...
}
And it's supposed to be declared as follows, without any method parentheses:
<h:commandXxx ... actionListener="#{bean.actionListener}" />
Note that you can't pass additional arguments by EL 2.2. You can however override the ActionEvent
argument altogether by passing and specifying custom argument(s). The following examples are valid:
<h:commandXxx ... actionListener="#{bean.methodWithoutArguments()}" />
<h:commandXxx ... actionListener="#{bean.methodWithOneArgument(arg1)}" />
<h:commandXxx ... actionListener="#{bean.methodWithTwoArguments(arg1, arg2)}" />
public void methodWithoutArguments() {}
public void methodWithOneArgument(Object arg1) {}
public void methodWithTwoArguments(Object arg1, Object arg2) {}
Note the importance of the parentheses in the argumentless method expression. If they were absent, JSF would still expect a method with ActionEvent
argument.
If you're on EL 2.2+, then you can declare multiple action listener methods via <f:actionListener binding>
.
<h:commandXxx ... actionListener="#{bean.actionListener1}">
<f:actionListener binding="#{bean.actionListener2()}" />
<f:actionListener binding="#{bean.actionListener3()}" />
</h:commandXxx>
public void actionListener1(ActionEvent event) {}
public void actionListener2() {}
public void actionListener3() {}
Note the importance of the parentheses in the binding
attribute. If they were absent, EL would confusingly throw a javax.el.PropertyNotFoundException: Property 'actionListener1' not found on type com.example.Bean
, because the binding
attribute is by default interpreted as a value expression, not as a method expression. Adding EL 2.2+ style parentheses transparently turns a value expression into a method expression. See also a.o. Why am I able to bind <f:actionListener> to an arbitrary method if it's not supported by JSF?
Use action
if you want to execute a business action and if necessary handle navigation. The action
method can (thus, not must) return a String
which will be used as navigation case outcome (the target view). A return value of null
or void
will let it return to the same page and keep the current view scope alive. A return value of an empty string or the same view ID will also return to the same page, but recreate the view scope and thus destroy any currently active view scoped beans and, if applicable, recreate them.
The action
method can be any valid MethodExpression
, also the ones which uses EL 2.2 arguments such as below:
<h:commandXxx value="submit" action="#{bean.edit(item)}" />
With this method:
public void edit(Item item) {
// ...
}
Note that when your action method solely returns a string, then you can also just specify exactly that string in the action
attribute. Thus, this is totally clumsy:
<h:commandLink value="Go to next page" action="#{bean.goToNextpage}" />
With this senseless method returning a hardcoded string:
public String goToNextpage() {
return "nextpage";
}
Instead, just put that hardcoded string directly in the attribute:
<h:commandLink value="Go to next page" action="nextpage" />
Please note that this in turn indicates a bad design: navigating by POST. This is not user nor SEO friendly. This all is explained in When should I use h:outputLink instead of h:commandLink? and is supposed to be solved as
<h:link value="Go to next page" outcome="nextpage" />
See also How to navigate in JSF? How to make URL reflect current page (and not previous one).
Since JSF 2.x there's a third way, the <f:ajax listener>
.
<h:commandXxx ...>
<f:ajax listener="#{bean.ajaxListener}" />
</h:commandXxx>
The ajaxListener
method has by default the following signature:
import javax.faces.event.AjaxBehaviorEvent;
// ...
public void ajaxListener(AjaxBehaviorEvent event) {
// ...
}
In Mojarra, the AjaxBehaviorEvent
argument is optional, below works as good.
public void ajaxListener() {
// ...
}
But in MyFaces, it would throw a MethodNotFoundException
. Below works in both JSF implementations when you want to omit the argument.
<h:commandXxx ...>
<f:ajax execute="@form" listener="#{bean.ajaxListener()}" render="@form" />
</h:commandXxx>
Ajax listeners are not really useful on command components. They are more useful on input and select components <h:inputXxx>
/<h:selectXxx>
. In command components, just stick to action
and/or actionListener
for clarity and better self-documenting code. Moreover, like actionListener
, the f:ajax listener
does not support returning a navigation outcome.
<h:commandXxx ... action="#{bean.action}">
<f:ajax execute="@form" render="@form" />
</h:commandXxx>
For explanation on execute
and render
attributes, head to Understanding PrimeFaces process/update and JSF f:ajax execute/render attributes.
The actionListener
s are always invoked before the action
in the same order as they are been declared in the view and attached to the component. The f:ajax listener
is always invoked before any action listener. So, the following example:
<h:commandButton value="submit" actionListener="#{bean.actionListener}" action="#{bean.action}">
<f:actionListener type="com.example.ActionListenerType" />
<f:actionListener binding="#{bean.actionListenerBinding()}" />
<f:setPropertyActionListener target="#{bean.property}" value="some" />
<f:ajax listener="#{bean.ajaxListener}" />
</h:commandButton>
Will invoke the methods in the following order:
Bean#ajaxListener()
Bean#actionListener()
ActionListenerType#processAction()
Bean#actionListenerBinding()
Bean#setProperty()
Bean#action()
The actionListener
supports a special exception: AbortProcessingException
. If this exception is thrown from an actionListener
method, then JSF will skip any remaining action listeners and the action method and proceed to render response directly. You won't see an error/exception page, JSF will however log it. This will also implicitly be done whenever any other exception is being thrown from an actionListener
. So, if you intend to block the page by an error page as result of a business exception, then you should definitely be performing the job in the action
method.
If the sole reason to use an actionListener
is to have a void
method returning to the same page, then that's a bad one. The action
methods can perfectly also return void
, on the contrary to what some IDEs let you believe via EL validation. Note that the PrimeFaces showcase examples are littered with this kind of actionListener
s over all place. This is indeed wrong. Don't use this as an excuse to also do that yourself.
In ajax requests, however, a special exception handler is needed. This is regardless of whether you use listener
attribute of <f:ajax>
or not. For explanation and an example, head to Exception handling in JSF ajax requests.
You can use below command
alter database Testing modify name=LearningSQL;
Old Database Name = Testing, New Database Name = LearningSQL
public class Main extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
EditText et = (EditText) findViewById(R.id.et);
EditText et_city = (EditText) findViewById(R.id.et_city);
// Set the default text of second EditText widget
et_city.setText("USA");
}
}
On your device Go To Settings -> Dev Settings, And Select "Allow OEM Unlock" As shown on Unlock Your Bootloader
At least this worked for me on my MotoE 4G.
In my computer, I get this code works.It's a little different from Daimon's answer.
@SqlResultSetMapping(_x000D_
name="groupDetailsMapping",_x000D_
classes={_x000D_
@ConstructorResult(_x000D_
targetClass=GroupDetails.class,_x000D_
columns={_x000D_
@ColumnResult(name="GROUP_ID",type=Integer.class),_x000D_
@ColumnResult(name="USER_ID",type=Integer.class)_x000D_
}_x000D_
)_x000D_
}_x000D_
)_x000D_
_x000D_
@NamedNativeQuery(name="User.getGroupDetails", query="SELECT g.*, gm.* FROM group g LEFT JOIN group_members gm ON g.group_id = gm.group_id and gm.user_id = :userId WHERE g.group_id = :groupId", resultSetMapping="groupDetailsMapping")
_x000D_
I wrote a wrapper using the ExpressionTree variant and c#7 (if somebody is interested):
public class Accessor<T>
{
private Action<T> Setter;
private Func<T> Getter;
public Accessor(Expression<Func<T>> expr)
{
var memberExpression = (MemberExpression)expr.Body;
var instanceExpression = memberExpression.Expression;
var parameter = Expression.Parameter(typeof(T));
if (memberExpression.Member is PropertyInfo propertyInfo)
{
Setter = Expression.Lambda<Action<T>>(Expression.Call(instanceExpression, propertyInfo.GetSetMethod(), parameter), parameter).Compile();
Getter = Expression.Lambda<Func<T>>(Expression.Call(instanceExpression, propertyInfo.GetGetMethod())).Compile();
}
else if (memberExpression.Member is FieldInfo fieldInfo)
{
Setter = Expression.Lambda<Action<T>>(Expression.Assign(memberExpression, parameter), parameter).Compile();
Getter = Expression.Lambda<Func<T>>(Expression.Field(instanceExpression,fieldInfo)).Compile();
}
}
public void Set(T value) => Setter(value);
public T Get() => Getter();
}
And use it like:
var accessor = new Accessor<string>(() => myClient.WorkPhone);
accessor.Set("12345");
Assert.Equal(accessor.Get(), "12345");
you need to use the htmlAttributes anonymous object, like this:
<%= Html.ActionLink("linky", "action", "controller", new { onclick = "someFunction();"}) %>
you could also give it an id an attach to it with jquery/whatever, like this:
<%= Html.ActionLink("linky", "action", "controller", new { id = "myLink" }) %>
$('#myLink').click(function() { /* bla */ });
A Unix timestamp is the number of seconds since 00:00:00 UTC January 1, 1970. It's represented by the type time_t, which is usually a signed 32-bit integer type (long or int).
iOS provides -(NSTimeInterval)timeIntervalSince1970 for NSDate objects which returns the number of seconds since 00:00:00 GMT January 1, 1970. NSTimeInterval is a double floating point type so you get the seconds and fractions of a second.
Since they both have the same reference (midnight 1Jan1970 UTC) and are both in seconds the conversion is easy, convert the NSTimeInterval to a time_t, rounding or truncating depending on your needs:
time_t unixTime = (time_t) [[NSDate date] timeIntervalSince1970];
#include #include
not original cv.h
This still loops through the cartesian product of the two lists, but it does it one line:
>>> lines1 = ['soup', 'butter', 'venison']
>>> lines2 = ['prune', 'rye', 'turkey']
>>> search_strings = ['a', 'b', 'c']
>>> any(s in l for l in lines1 for s in search_strings)
True
>>> any(s in l for l in lines2 for s in search_strings)
False
This also have the advantage that any
short-circuits, and so the looping stops as soon as a match is found. Also, this only finds the first occurrence of a string from search_strings
in linesX
. If you want to find multiple occurrences you could do something like this:
>>> lines3 = ['corn', 'butter', 'apples']
>>> [(s, l) for l in lines3 for s in search_strings if s in l]
[('c', 'corn'), ('b', 'butter'), ('a', 'apples')]
If you feel like coding something more complex, it seems the Aho-Corasick algorithm can test for the presence of multiple substrings in a given input string. (Thanks to Niklas B. for pointing that out.) I still think it would result in quadratic performance for your use-case since you'll still have to call it multiple times to search multiple lines. However, it would beat the above (cubic, on average) algorithm.
You can't.
In order to "use" the struct, i.e. to be able to declare objects of that type and to access its internals you need the full definition of the struct. So, it you want to do any of that (and you do, judging by your error messages), you have to place the full definition of the struct type into the header file.
I used the not()
CSS operator and jQuery's addClass()
function. Here is an example, when you click on a list item, it won't hover anymore:
For example:
HTML
<ul class="vegies">
<li>Onion</li>
<li>Potato</li>
<li>Lettuce</li>
<ul>
CSS
.vegies li:not(.no-hover):hover { color: blue; }
jQuery
$('.vegies li').click( function(){
$(this).addClass('no-hover');
});
The PHP CLI as its called ( php for the Command Line Interface ) is called php.exe
It lives in c:\wamp\bin\php\php5.x.y\php.exe
( where x and y are the version numbers of php that you have installed )
If you want to create php scrips to run from the command line then great its easy and very useful.
Create yourself a batch file like this, lets call it phppath.cmd
:
PATH=%PATH%;c:\wamp\bin\php\phpx.y.z
php -v
Change x.y.z
to a valid folder name for a version of PHP that you have installed within WAMPServer
Save this into one of your folders that is already on your PATH, so you can run it from anywhere.
Now from a command window, cd into your source folder and run >phppath.
Then run
php your_script.php
It should work like a dream.
Here is an example that configures PHP Composer and PEAR if required and they exist
@echo off
REM **************************************************************
REM * PLACE This file in a folder that is already on your PATH
REM * Or just put it in your C:\Windows folder as that is on the
REM * Search path by default
REM * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
REM * EDIT THE NEXT 3 Parameters to fit your installed WAMPServer
REM **************************************************************
set baseWamp=D:\wamp
set defaultPHPver=7.4.3
set composerInstalled=%baseWamp%\composer
set phpFolder=\bin\php\php
if %1.==. (
set phpver=%baseWamp%%phpFolder%%defaultPHPver%
) else (
set phpver=%baseWamp%%phpFolder%%1
)
PATH=%PATH%;%phpver%
php -v
echo ---------------------------------------------------------------
REM IF PEAR IS INSTALLED IN THIS VERSION OF PHP
IF exist %phpver%\pear (
set PHP_PEAR_SYSCONF_DIR=%baseWamp%%phpFolder%%phpver%
set PHP_PEAR_INSTALL_DIR=%baseWamp%%phpFolder%%phpver%\pear
set PHP_PEAR_DOC_DIR=%baseWamp%%phpFolder%%phpver%\docs
set PHP_PEAR_BIN_DIR=%baseWamp%%phpFolder%%phpver%
set PHP_PEAR_DATA_DIR=%baseWamp%%phpFolder%%phpver%\data
set PHP_PEAR_PHP_BIN=%baseWamp%%phpFolder%%phpver%\php.exe
set PHP_PEAR_TEST_DIR=%baseWamp%%phpFolder%%phpver%\tests
echo PEAR INCLUDED IN THIS CONFIG
echo ---------------------------------------------------------------
) else (
echo PEAR DOES NOT EXIST IN THIS VERSION OF php
echo ---------------------------------------------------------------
)
REM IF A GLOBAL COMPOSER EXISTS ADD THAT TOO
REM **************************************************************
REM * IF A GLOBAL COMPOSER EXISTS ADD THAT TOO
REM *
REM * This assumes that composer is installed in /wamp/composer
REM *
REM **************************************************************
IF EXIST %composerInstalled% (
ECHO COMPOSER INCLUDED IN THIS CONFIG
echo ---------------------------------------------------------------
set COMPOSER_HOME=%baseWamp%\composer
set COMPOSER_CACHE_DIR=%baseWamp%\composer
PATH=%PATH%;%baseWamp%\composer
rem echo TO UPDATE COMPOSER do > composer self-update
echo ---------------------------------------------------------------
) else (
echo ---------------------------------------------------------------
echo COMPOSER IS NOT INSTALLED
echo ---------------------------------------------------------------
)
set baseWamp=
set defaultPHPver=
set composerInstalled=
set phpFolder=
Call this command file like this to use the default version of PHP
> phppath
Or to get a specific version of PHP like this
> phppath 5.6.30
Mac Users please execute the below command from terminal to disable the certificate warning.
/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --ignore-certificate-errors --ignore-urlfetcher-cert-requests &> /dev/null
Note that this will also have Google Chrome mark all HTTPS sites as insecure in the URL bar.
Now will this socket connection remain open forever or is there a timeout limit associated with it similar to HTTP keep-alive?
The short answer is no it won't remain open forever, it will probably time out after a few hours. Therefore yes there is a timeout and it is enforced via TCP Keep-Alive.
If you would like to configure the Keep-Alive timeout on your machine, see the "Changing TCP Timeouts" section below. Otherwise read through the rest of the answer to learn how TCP Keep-Alive works.
TCP connections consist of two sockets, one on each end of the connection. When one side wants to terminate the connection, it sends an RST
packet which the other side acknowledges and both close their sockets.
Until that happens, however, both sides will keep their socket open indefinitely. This leaves open the possibility that one side may close their socket, either intentionally or due to some error, without informing the other end via RST
. In order to detect this scenario and close stale connections the TCP Keep Alive process is used.
There are three configurable properties that determine how Keep-Alives work. On Linux they are1:
tcp_keepalive_time
tcp_keepalive_probes
tcp_keepalive_intvl
The process works like this:
tcp_keepalive_time
seconds, send a single empty ACK
packet.1ACK
of its own?
tcp_keepalive_intvl
seconds, then send another ACK
ACK
probes that have been sent equals tcp_keepalive_probes
.RST
and terminate the connection.This process is enabled by default on most operating systems, and thus dead TCP connections are regularly pruned once the other end has been unresponsive for 2 hours 11 minutes (7200 seconds + 75 * 9 seconds).
Since the process doesn't start until a connection has been idle for two hours by default, stale TCP connections can linger for a very long time before being pruned. This can be especially harmful for expensive connections such as database connections.
According to RFC 1122 4.2.3.6, responding to and/or relaying TCP Keep-Alive packets is optional:
Implementors MAY include "keep-alives" in their TCP implementations, although this practice is not universally accepted. If keep-alives are included, the application MUST be able to turn them on or off for each TCP connection, and they MUST default to off.
...
It is extremely important to remember that ACK segments that contain no data are not reliably transmitted by TCP.
The reasoning being that Keep-Alive packets contain no data and are not strictly necessary and risk clogging up the tubes of the interwebs if overused.
In practice however, my experience has been that this concern has dwindled over time as bandwidth has become cheaper; and thus Keep-Alive packets are not usually dropped. Amazon EC2 documentation for instance gives an indirect endorsement of Keep-Alive, so if you're hosting with AWS you are likely safe relying on Keep-Alive, but your mileage may vary.
Unfortunately since TCP connections are managed on the OS level, Java does not support configuring timeouts on a per-socket level such as in java.net.Socket
. I have found some attempts3 to use Java Native Interface (JNI) to create Java sockets that call native code to configure these options, but none appear to have widespread community adoption or support.
Instead, you may be forced to apply your configuration to the operating system as a whole. Be aware that this configuration will affect all TCP connections running on the entire system.
The currently configured TCP Keep-Alive settings can be found in
/proc/sys/net/ipv4/tcp_keepalive_time
/proc/sys/net/ipv4/tcp_keepalive_probes
/proc/sys/net/ipv4/tcp_keepalive_intvl
You can update any of these like so:
# Send first Keep-Alive packet when a TCP socket has been idle for 3 minutes
$ echo 180 > /proc/sys/net/ipv4/tcp_keepalive_time
# Send three Keep-Alive probes...
$ echo 3 > /proc/sys/net/ipv4/tcp_keepalive_probes
# ... spaced 10 seconds apart.
$ echo 10 > /proc/sys/net/ipv4/tcp_keepalive_intvl
Such changes will not persist through a restart. To make persistent changes, use sysctl
:
sysctl -w net.ipv4.tcp_keepalive_time=180 net.ipv4.tcp_keepalive_probes=3 net.ipv4.tcp_keepalive_intvl=10
The currently configured settings can be viewed with sysctl
:
$ sysctl net.inet.tcp | grep -E "keepidle|keepintvl|keepcnt"
net.inet.tcp.keepidle: 7200000
net.inet.tcp.keepintvl: 75000
net.inet.tcp.keepcnt: 8
Of note, Mac OS X defines keepidle
and keepintvl
in units of milliseconds as opposed to Linux which uses seconds.
The properties can be set with sysctl
which will persist these settings across reboots:
sysctl -w net.inet.tcp.keepidle=180000 net.inet.tcp.keepcnt=3 net.inet.tcp.keepintvl=10000
Alternatively, you can add them to /etc/sysctl.conf
(creating the file if it doesn't exist).
$ cat /etc/sysctl.conf
net.inet.tcp.keepidle=180000
net.inet.tcp.keepintvl=10000
net.inet.tcp.keepcnt=3
I don't have a Windows machine to confirm, but you should find the respective TCP Keep-Alive settings in the registry at
\HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\TCPIP\Parameters
Footnotes
1. See man tcp
for more information.
2. This packet is often referred to as a "Keep-Alive" packet, but within the TCP specification it is just a regular ACK
packet. Applications like Wireshark are able to label it as a "Keep-Alive" packet by meta-analysis of the sequence and acknowledgement numbers it contains in reference to the preceding communications on the socket.
3. Some examples I found from a basic Google search are lucwilliams/JavaLinuxNet and flonatel/libdontdie.
var total = 0
grades.forEach(function (grade) {
total += grade
});
console.log(total / grades.length)
int a = srand(time(NULL));
The prototype for srand
is void srand(unsigned int)
(provided you included <stdlib.h>
).
This means it returns nothing ... but you're using the value it returns (???) to assign, by initialization, to a
.
Edit: this is what you need to do:
#include <stdlib.h> /* srand(), rand() */
#include <time.h> /* time() */
#define ARRAY_SIZE 1024
void getdata(int arr[], int n)
{
for (int i = 0; i < n; i++)
{
arr[i] = rand();
}
}
int main(void)
{
int arr[ARRAY_SIZE];
srand(time(0));
getdata(arr, ARRAY_SIZE);
/* ... */
}
numpy.linspace()
gives you a one-dimensional NumPy array. For example:
>>> my_array = numpy.linspace(1, 10, 10)
>>> my_array
array([ 1., 2., 3., 4., 5., 6., 7., 8., 9., 10.])
Therefore:
for index,point in my_array
cannot work. You would need some kind of two-dimensional array with two elements in the second dimension:
>>> two_d = numpy.array([[1, 2], [4, 5]])
>>> two_d
array([[1, 2], [4, 5]])
Now you can do this:
>>> for x, y in two_d:
print(x, y)
1 2
4 5
I was facing the same issue.
I resolved it by importing React
and ReactDOM
like as follows:
import React from 'react';
import ReactDOM from 'react-dom';
Found this good site https://stefancosma.xyz/2018/10/01/how-to-use-tomcat-intellij-idea-community/ All credits to the author
Okay, this solution is far simpler than the ones already here, and allows different column widths for different device widths.
<div class="row">
<div ng-repeat="image in images">
<div class="col-xs-6 col-sm-4 col-md-3 col-lg-2">
... your content here ...
</div>
<div class="clearfix visible-lg" ng-if="($index + 1) % 6 == 0"></div>
<div class="clearfix visible-md" ng-if="($index + 1) % 4 == 0"></div>
<div class="clearfix visible-sm" ng-if="($index + 1) % 3 == 0"></div>
<div class="clearfix visible-xs" ng-if="($index + 1) % 2 == 0"></div>
</div>
</div>
Note that the % 6
part is supposed to equal the number of resulting columns. So if on the column element you have the class col-lg-2
there will be 6 columns, so use ... % 6
.
This technique (excluding the ng-if
) is actually documented here: Bootstrap docs
Going off of what Surreal Dreams said, it's probably best to style the anchor tag in my experience, but it really does depend on what you are doing. Here's an example:
Html:
<div class="parent-div">
<a href="#">Test</a>
<a href="#">Test</a>
<a href="#">Test</a>
</div>
Then the CSS:
.parent-div {
width: 200px;
}
a {
display:block;
background-color: #ccc;
color: #000;
text-decoration:none;
padding:10px;
margin-bottom:1px;
}
a:hover {
background-color: #ddd;
}
Cross origin protection is a feature of the browser. Curl does not care for CORS, as you presumed. That explains why your curls are successful, while the browser requests are not.
If you send the browser request with the wrong credentials, spring will try to forward the client to a login page. This response (off the login page) does not contain the header 'Access-Control-Allow-Origin' and the browser reacts as you describe.
You must make spring to include the haeder for this login response, and may be for other response, like error pages etc.
This can be done like this :
@Configuration
@EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter {
@Override
public void addCorsMappings(CorsRegistry registry) {
registry.addMapping("/api/**")
.allowedOrigins("http://domain2.com")
.allowedMethods("PUT", "DELETE")
.allowedHeaders("header1", "header2", "header3")
.exposedHeaders("header1", "header2")
.allowCredentials(false).maxAge(3600);
}
}
This is copied from cors-support-in-spring-framework
I would start by adding cors mapping for all resources with :
registry.addMapping("/**")
and also allowing all methods headers.. Once it works you may start to reduce that again to the needed minimum.
Please note, that the CORS configuration changes with Release 4.2.
If this does not solve your issues, post the response you get from the failed ajax request.
Note: This is the somewhat crude solution I posted myself, after not finding an answer here on Stack Overflow. It allows for only one array being passed, and it being the last element of the parameter list. Actually, it is not passing the array at all, but a list of its elements, which are re-assembled into an array by called_function(), but it worked for me. Somewhat later Ken posted his solution, but I kept mine here for "historic" reference.
calling_function()
{
variable="a"
array=( "x", "y", "z" )
called_function "${variable}" "${array[@]}"
}
called_function()
{
local_variable="${1}"
shift
local_array=("${@}")
}
SELECT 'ALTER TABLE '||substr(c.table_name,1,35)||
' DISABLE CONSTRAINT '||constraint_name||' ;'
FROM user_constraints c, user_tables u
WHERE c.table_name = u.table_name;
This statement returns the commands which turn off all the constraints including primary key, foreign keys, and another constraints.
Mysql has this handy UPDATE INTO command ;)
edit Looks like they renamed it to REPLACE
REPLACE works exactly like INSERT, except that if an old row in the table has the same value as a new row for a PRIMARY KEY or a UNIQUE index, the old row is deleted before the new row is inserted
git add
adds files to the Git index, which is a staging area for objects prepared to be commited.git commit
commits the files in the index to the repository, git commit -a
is a shortcut to add all the modified tracked files to the index first.git push
sends all the pending changes to the remote repository to which your branch is mapped (eg. on GitHub).In order to understand Git you would need to invest more effort than just glancing over the documentation, but it's definitely worth it. Just don't try to map Git commands directly to Subversion, as most of them don't have a direct counterpart.
If, at some point, you only need to export a single result set, just right click "on the data" (any column of any row) there you will find an export option. The wizard exports the complete result set regardless of what you selected
Beside above solutions, there is a more "COMMON" way - directly delete the largest space consumer from Linux machine. You can follow the below steps:
Using ls -lart to list out hidden folder also, normally jenkin installation is placed in .jenkins/ folder
[xxxxx ~]$ ls -lart drwxrwxr-x 12 xxxx 4096 Feb 8 02:08 .jenkins/
Use df -h
to show Disk space in high level
du -sh ./*/
to list out total memory for each subfolder in current path.
du -a /etc/ | sort -n -r | head -n 10
will list top 10 directories eating disk space in /etc/
Normally ./job/ folder or ./workspace/ folder can be the largest folder. Please go inside and delete base on you need (DO NOT delete entire folder).
rm -rf theFolderToDelete
I was having a very similar problem, and it turned out to be quite simple; my client wasn't including a Jackson dependency, even though the code all compiled correctly, the auto-magic converters for JSON weren't being included. See this RestTemplate-related solution.
In short, I added a Jackson dependency to my pom.xml and it just worked:
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.5.1</version>
</dependency>
If you don't pass values, you'll get nulls for defaults.
But you can just pass the word NULL without quotes.
I had to change the js file, so to include "function()" at the beginning of it, and also "()" at the end line. That solved the problem
javascript does not not have a compiler like for example Java/C(You can compare it more to languages like PHP for example). If you want to write compiled code you should read the section about addons and learn C. Although this is rather complex and I don't think you need to do this but instead just write javascript.
os.system()
returns the (encoded) process exit value. 0
means success:
On Unix, the return value is the exit status of the process encoded in the format specified for
wait()
. Note that POSIX does not specify the meaning of the return value of the C system() function, so the return value of the Python function is system-dependent.
The output you see is written to stdout
, so your console or terminal, and not returned to the Python caller.
If you wanted to capture stdout
, use subprocess.check_output()
instead:
x = subprocess.check_output(['whoami'])
PhantomJS recently dropped Python support altogether. However, PhantomJS now embeds Ghost Driver.
A new project has since stepped up to fill the void: ghost.py
. You probably want to use that instead:
from ghost import Ghost
ghost = Ghost()
with ghost.start() as session:
page, extra_resources = ghost.open("http://jeanphi.me")
assert page.http_status==200 and 'jeanphix' in ghost.content
You could install pandas and use pandas.read_fwf
for fixed width format files. Example using /proc/net/arp
:
In [230]: df = pandas.read_fwf("/proc/net/arp")
In [231]: print(df)
IP address HW type Flags HW address Mask Device
0 141.38.28.115 0x1 0x2 84:2b:2b:ad:e1:f4 * eth0
1 141.38.28.203 0x1 0x2 c4:34:6b:5b:e4:7d * eth0
2 141.38.28.140 0x1 0x2 00:19:99:ce:00:19 * eth0
3 141.38.28.202 0x1 0x2 90:1b:0e:14:a1:e3 * eth0
4 141.38.28.17 0x1 0x2 90:1b:0e:1a:4b:41 * eth0
5 141.38.28.60 0x1 0x2 00:19:99:cc:aa:58 * eth0
6 141.38.28.233 0x1 0x2 90:1b:0e:8d:7a:c9 * eth0
7 141.38.28.55 0x1 0x2 00:19:99:cc:ab:00 * eth0
8 141.38.28.224 0x1 0x2 90:1b:0e:8d:7a:e2 * eth0
9 141.38.28.148 0x1 0x0 4c:52:62:a8:08:2c * eth0
10 141.38.28.179 0x1 0x2 90:1b:0e:1a:4b:50 * eth0
In [232]: df["HW address"]
Out[232]:
0 84:2b:2b:ad:e1:f4
1 c4:34:6b:5b:e4:7d
2 00:19:99:ce:00:19
3 90:1b:0e:14:a1:e3
4 90:1b:0e:1a:4b:41
5 00:19:99:cc:aa:58
6 90:1b:0e:8d:7a:c9
7 00:19:99:cc:ab:00
8 90:1b:0e:8d:7a:e2
9 4c:52:62:a8:08:2c
10 90:1b:0e:1a:4b:50
In [233]: df["HW address"][5]
Out[233]: '00:19:99:cc:aa:58'
By default it tries to figure out the format automagically, but there are options you can give for more explicit instructions (see documentation). There are also other IO routines in pandas that are powerful for other file formats.
Just a small tweak to Joaquin Alberto's answer can solve the style issue.Just replace the getDropDownView function in the custom adapter as below,
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
View v = super.getDropDownView(position, convertView, parent);
TextView tv = ((TextView) v);
tv.setText(values[position].getName());
tv.setTextColor(Color.BLACK);
return v;
}
I know this is an old question ... anyway ... if you want to keep your xml nice and simple you can extend TableLayout and override dispatchDraw to do some custom drawing.
Here is a quick and dirty implementation that draws a rectangle around the table view as well as horizontal and verticals bars:
public class TableLayoutEx extends TableLayout {
private Paint linePaint = null;
private Rect tableLayoutRect;
public TableLayoutEx(Context context) {
super(context);
}
public TableLayoutEx(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
float strokeWidth = this.getContext().getResources().getDisplayMetrics().scaledDensity * 1;
linePaint = new Paint(0);
linePaint.setColor(0xff555555);
linePaint.setStrokeWidth(strokeWidth);
linePaint.setStyle(Paint.Style.STROKE);
Rect rect = new Rect();
int paddingTop= getPaddingTop();
this.getDrawingRect(rect);
tableLayoutRect = new Rect(rect.left, rect.top + paddingTop, rect.right, rect.bottom);
}
@Override
protected void dispatchDraw(Canvas canvas) {
super.dispatchDraw(canvas);
Rect rect = new Rect();
if (linePaint != null) {
canvas.drawRect(tableLayoutRect, linePaint);
float y = tableLayoutRect.top;
for (int i = 0; i < getChildCount() - 1; i++) {
if (getChildAt(i) instanceof TableRow) {
TableRow tableRow = (TableRow) getChildAt(i);
tableRow.getDrawingRect(rect);
y += rect.height();
canvas.drawLine(tableLayoutRect.left, y, tableLayoutRect.right, y, linePaint);
float x = tableLayoutRect.left;
for (int j = 0; j < tableRow.getChildCount() - 1; j++) {
View view = tableRow.getChildAt(j);
if (view != null) {
view.getDrawingRect(rect);
x += rect.width();
canvas.drawLine(x, tableLayoutRect.top, x, tableLayoutRect.bottom, linePaint);
}
}
}
}
}
}
}
xml example with the third column wrapping text:
<com.YOURPACKAGE.TableLayoutEx
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:shrinkColumns="2"
android:paddingTop="6dp">
<TableRow>
<TextView
android:text="@string/my_text_0_0"
android:padding="@dimen/my_padding"/>
<TextView
android:text="@string/my_text_0_1"
android:padding="@dimen/my_padding"/>
<TextView
android:text="@string/my_text_0_2_to_wrap"
android:padding="@dimen/my_padding"/>
</TableRow>
<!--more table rows here-->
</com.YOURPACKAGE.TableLayoutEx>
The code can be cleaned up, but if you are using a list to store your tuples, any such lookup will be O(N).
If lookup speed is important, you should use a dict
to store your tuples. The key should be the 0th element of your tuples, since that's what you're searching on. You can easily create a dict from your list:
my_dict = dict(my_list)
Then, (VALUE, my_dict[VALUE])
will give you your matching tuple (assuming VALUE
exists).
[excel 2010] separate the date and time into separate columns and select both as X-Axis and data as graph series see http://www.79783.mrsite.com/USERIMAGES/horizontal_axis_date_and_time2.xlsx
Try using display: inline-block;
on the inner div.
#outer {
width:500px;
height:200px;
background:#FFCCCC;
margin:50px auto 0 auto;
display:block;
}
#inner {
background:#FFCC33;
margin:50px 50px 50px 50px;
padding:10px;
display:inline-block;
}
If none of these work, try getBaseContext()
, instead of context
or this
.
You have to repeat your expression everywhere you want to use it:
SELECT Replace(Postcode, ' ', '') AS P
FROM Contacts
WHERE Replace(Postcode, ' ', '') LIKE 'NW101%'
or you can make it a subquery
select P
from (
SELECT Replace(Postcode, ' ', '') AS P
FROM Contacts
) t
WHERE P LIKE 'NW101%'
I had the same issue and resolved it by adding the /bin
directory location to the PATH Environment Variable.
Search for the file location where Git was installed, mine is C:\Users\(My UserName)\AppData\Local\GitHub
. It may also be C:\Program Files (x86)\Git
Once you have the location of Git you should see a /bin
sub-folder. It may be in a PortableGit folder (mine is
PortableGit_015aa71ef18c047ce8509ffb2f9e4bb0e3e73f13
). Copy this path.
Go to Control Panel > System > System Protection > Advanced > Environment Variables
Choose PATH, click edit and paste the bin path there. If there are already any values in your PATH paste your Git path at the end separated with a semi-colon.
Now you can access Git command from CMD.
To me it seems like the best solution is to use a directive; there's no need for the controller to know that the view is being updated.
Javascript:
var app = angular.module('app', ['directives']);
angular.module('directives', []).directive('toggleClass', function () {
var directiveDefinitionObject = {
restrict: 'A',
template: '<span ng-click="localFunction()" ng-class="selected" ng-transclude></span>',
replace: true,
scope: {
model: '='
},
transclude: true,
link: function (scope, element, attrs) {
scope.localFunction = function () {
scope.model.value = scope.$id;
};
scope.$watch('model.value', function () {
// Is this set to my scope?
if (scope.model.value === scope.$id) {
scope.selected = "active";
} else {
// nope
scope.selected = '';
}
});
}
};
return directiveDefinitionObject;
});
HTML:
<div ng-app="app" ng-init="model = { value: 'dsf'}"> <span>Click a span... then click another</span>
<br/>
<br/>
<span toggle-class model="model">span1</span>
<br/><span toggle-class model="model">span2</span>
<br/><span toggle-class model="model">span3</span>
CSS:
.active {
color:red;
}
I have a fiddle that demonstrates. The idea is when a directive is clicked, a function is called on the directive that sets a variable to the current scope id. Then each directive also watches the same value. If the scope ID's match, then the current element is set to be active using ng-class.
The reason to use directives, is that you no longer are dependent on a controller. In fact I don't have a controller at all (I do define a variable in the view named "model"). You can then reuse this directive anywhere in your project, not just on one controller.
Yes ..it is possible using INSERT ON DUPLICATE KEY UPDATE sql statement.. syntax: INSERT INTO table_name (a,b,c) VALUES (1,2,3),(4,5,6) ON DUPLICATE KEY UPDATE a=VALUES(a),b=VALUES(b),c=VALUES(c)
A little verbose, but self documenting...
Dim strEmpty() As String = Enumerable.Empty(Of String).ToArray
std::size_t s = 1024;
std::cout << s; // or any other kind of stream like stringstream!
parentNode.insertBefore(newChild, refChild)
Inserts the node newChild as a child of parentNode before the existing child node refChild. (Returns newChild.)
If refChild is null, newChild is added at the end of the list of children. Equivalently, and more readably, use parentNode.appendChild(newChild).
Well, this seemed to work on my Razor Page and never even did a round trip to the .cs file. This is old html way. It might be useful.
<input type="reset" value="Reset">
GRANT ALL PRIVILEGES ON DATABASE "my_db" to my_user;
Another possibility is that setting dataType: json
causes JQuery to send the Content-Type: application/json
header. This is considered a non-standard header by CORS, and requires a CORS preflight request. So a few things to try:
1) Try configuring your server to send the proper preflight responses. This will be in the form of additional headers like Access-Control-Allow-Methods
and Access-Control-Allow-Headers
.
2) Drop the dataType: json
setting. JQuery should request Content-Type: application/x-www-form-urlencoded
by default, but just to be sure, you can replace dataType: json
with contentType: 'application/x-www-form-urlencoded'
You could use loc
to get series which satisfying your condition and then iloc
to get first element:
In [2]: df
Out[2]:
A B
0 p1 1
1 p1 2
2 p3 3
3 p2 4
In [3]: df.loc[df['B'] == 3, 'A']
Out[3]:
2 p3
Name: A, dtype: object
In [4]: df.loc[df['B'] == 3, 'A'].iloc[0]
Out[4]: 'p3'
You can probably change the default editor to ed and use a heredoc to edit.
EDITOR=ed
export EDITOR
crontab -e << EOF
> a
> * * * * * Myscript
> * * * * * AnotherScript
> * * * * * MoreScript
> .
> w
> q
> EOF
Note the leading > in that code means the return/enter key is pressed to create a new line.
The a means APPEND so it will not overwrite anything.
The . means you're done editing.
The w means WRITE the changes.
The q means QUIT or exit ed.
you can check it out
crontab -l
You can delete an entry too.
EDITOR=ed
export EDITOR
crontab -e << EOF
> /Myscript/
> d
> .
> w
> q
> EOF
That will delete the crontab entry with Myscript in it.
The d means delete the pattern inside the / /.
No check it again
crontab -l
This solution works inside a script too less the > of course :-)
You are missing the selector in the .on
function:
.on(eventType, selector, function)
This selector is very important!
If new HTML is being injected into the page, select the elements and attach event handlers after the new HTML is placed into the page. Or, use delegated events to attach an event handler
See jQuery 1.9 .live() is not a function for more details.
My understanding of margin and padding comes from google's developer tool in the image attached
In Simple words, a margin is the space around an element and padding means the space between an element and the content inside that element. Both these two are used to create gaps but in different ways.
Using Margin to create gap:
In creating gap margin pushes the adjacent elements away
Using Padding to create gap:
Using padding to create gap either grows the element's size or shrinks the content inside
Why is it important to know the difference?
It is important to know the difference so you could know when to use either of them and use them appropriately.
It is also worthy of note that margins and padding come handy when designing a website's layout, as margin specifies whether an element will move up or down, left or right while padding specifies how an element will look and sit inside its container.
MySQL versions and Linux distributions may matter when making configurations.
However, the changes under [mysqld]
section is encouraged.
I want to give a short explanation of tomazzlender's answer:
[mysqld]
init_connect='SET collation_connection = utf8_unicode_ci'
init_connect='SET NAMES utf8'
character-set-server=utf8
collation-server=utf8_unicode_ci
skip-character-set-client-handshake
[mysqld]
This will change collation_connection to utf8_unicode_ci
init_connect='SET collation_connection = utf8_unicode_ci'
Using SET NAMES
:
init_connect='SET NAMES utf8'
The SET NAMES will influence three characters, that is:
character_set_client
character_set_results
character_set_connection
This will set character_set_database & character_set_server
character-set-server=utf8
This will only affect collation_database & collation_server
collation-server=utf8_unicode_ci
Sorry, I'm not so sure what is this for. I don't use it however:
skip-character-set-client-handshake
NULL
is not a keyword. It's an identifier defined in some standard headers. You can include
#include <cstddef>
To have it in scope, including some other basics, like std::size_t
.
DateTime.Ticks will account for the time. Use .Ticks on the DateTime to convert your dates into longs. Then just use a simple if stmt to see if your target date falls between.
// Assuming you know d2 > d1
if (targetDt.Ticks > d1.Ticks && targetDt.Ticks < d2.Ticks)
{
// targetDt is in between d1 and d2
}
first up on create your jsp file :
and write the text field which you want
for ex:
after that create your servlet class:
public class test{
protected void doGet(paramter , paramter){
String name = request.getparameter("name");
}
}
you could use something like:
[^0-9]+([0-9]+)[^0-9]+([0-9]+).+
Then get the first and second capture groups.
Database client tools (like DBeaver or phpMyAdmin) often support means of fulltext search through entire database.
OVERVIEW
I have written a simple semantic hack for this using @AshutoshMehra
response. You code looks really readable this way!
MACRO
#include <time.h>
#ifndef SYSOUT_F
#define SYSOUT_F(f, ...) _RPT1( 0, f, __VA_ARGS__ ) // For Visual studio
#endif
#ifndef speedtest__
#define speedtest__(data) for (long blockTime = NULL; (blockTime == NULL ? (blockTime = clock()) != NULL : false); SYSOUT_F(data "%.9fs", (double) (clock() - blockTime) / CLOCKS_PER_SEC))
#endif
USAGE
speedtest__("Block Speed: ")
{
// The code goes here
}
OUTPUT
Block Speed: 0.127000000s
Using wxPython on Mac to get the correct DPI as follows:
from wx import ScreenDC
from wx import Size
size: Size = ScreenDC().GetPPI()
print(f'x-DPI: {size.GetWidth()} y-DPI: {size.GetHeight()}')
This yields:
x-DPI: 72 y-DPI: 72
Thus, the formula is:
points: int = (pixelNumber * 72) // 72
Creating an IPA is done along the same way as creating an .xcarchive: Product -> Archive. After the Archive operation completes, go to the Organizer, select your archive, select Share and in the "Select the content and options for sharing:" pane set Contents to "iOS App Store Package (.ipa) and Identity to iPhone Distribution (which should match your ad hoc/app store provisioning profile for the project).
Chances are the "iOS App Store Package (.ipa)" option may be disabled. This happens when your build produces more than a single target: say, an app and a library. All of them end up in the build products folder and Xcode gets naïvely confused about how to package them both into an .ipa file, so it merely disables the option.
A way to solve this is as follows: go through build settings for each of the targets, except the application target, and set Skip Install flag to YES. Then do the Product -> Archive tango once again and go to the Organizer to select your new archive. Now, when clicking on the Share button, the .ipa option should be enabled.
I hope this helps.
According to my practice, I use the 40 x 40 for standard iPad tab bar item icon, 80 X 80 for retina.
From the Apple reference. https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/MobileHIG/BarIcons.html#//apple_ref/doc/uid/TP40006556-CH21-SW1
If you want to create a bar icon that looks like it's related to the iOS 7 icon family, use a very thin stroke to draw it. Specifically, a 2-pixel stroke (high resolution) works well for detailed icons and a 3-pixel stroke works well for less detailed icons.
Regardless of the icon’s visual style, create a toolbar or navigation bar icon in the following sizes:
About 44 x 44 pixels About 22 x 22 pixels (standard resolution) Regardless of the icon’s visual style, create a tab bar icon in the following sizes:
About 50 x 50 pixels (96 x 64 pixels maximum) About 25 x 25 pixels (48 x 32 pixels maximum) for standard resolution
From Windows command-line, type:
SC \\server_name query | find /I "SQL Server ("
Where "server_name" is the name of any remote server on which you wish to display the SQL instances.
This requires enough permissions of course.
Raminson has a nice answer if you are already (or don't mind) using jQuery Mobile. If you want a different solution, why not just modify your code as follows:
change that LI you're having trouble with to include an A tag and apply the class there instead of the LI
<!-- This is the main menu -->
<ul class="menu">
<li><a href="/home/">HOME</a></li>
<li><a href="#" class="publications">PUBLICATIONS & PROJECTS</a></li>
<li><a href="/about/">ABOUT</a></li>
<li><a href="/blog/">BLOG</a></li>
<li><a href="/contact/">CONTACT</a></li>
</ul>
And your javascript/jquery code... return false to stop bubbling.
$(document).ready(function(){
$('.publications').click(function() {
$('#filter_wrapper').show();
return false;
});
});
This should work for what you are trying to do.
Also, I noticed your site opens the other links in new tabs/windows, is that intentional?
try this
<c:forEach items="${list}" var="map">
<tr>
<c:forEach items="${map}" var="entry">
<td>${entry.value}</td>
</c:forEach>
</tr>
</c:forEach>
HashMap is an implementation of Map so it's quite the same but has "clone()" method as i see in reference guide))
In some cases you should use:
req.path
This gives you the path, instead of the complete requested URL. For example, if you are only interested in which page the user requested and not all kinds of parameters the url:
/myurl.htm?allkinds&ofparameters=true
req.path will give you:
/myurl.html
Another way, for variety. Although this is somewhat less flexible than the others. Unfortunately, the graphs appear one above the other, rather than side-by-side, which you did request in your original question. But it is very concise.
df.plot(subplots=True)
If the dataframe has more than the two series, and you only want to plot those two, you'll need to replace df
with df[['korisnika','osiguranika']]
.
On button click you can try the following.
protected void button1_Click(object sender, EventArgs e)
{
Response.Redirect("~/Admin/Admin.aspx");
}
And on PageLoad you can check whether the loading is coming from that button then increase the count.
protected void Page_Load(object sender, EventArgs e)
{
StackTrace stackTrace = new StackTrace();
string eventName = stackTrace.GetFrame(1).GetMethod().Name; // this will the event name.
if (eventName == "button1_Click")
{
// code to increase the count;
}
}
Thanks
Put that in onResume method:
findViewById(R.id.root_view_of_your_activity_layout).post(
new Runnable() {
public void run() {
InputMethodManager inputMethodManager = (InputMethodManager)getSystemService(INPUT_METHOD_SERVICE);
inputMethodManager.toggleSoftInputFromWindow(yourEditText.getApplicationWindowToken(), InputMethodManager.SHOW_FORCED, 0);
yourEditText.requestFocus();
}
});
the runnable is needed because when the OS fires the onResume method you can't be sure that all the views where draw, so the post method called from your root layout makes it wait till every view is ready.
You can solve that using display table.
Here is the updated JSFiddle that solves your problem.
CSS
.body {
display: table;
background-color: green;
}
.left-side {
background-color: blue;
float: none;
display: table-cell;
border: 1px solid;
}
.right-side {
background-color: red;
float: none;
display: table-cell;
border: 1px solid;
}
HTML
<div class="row body">
<div class="col-xs-9 left-side">
<p>sdfsdf</p>
<p>sdfsdf</p>
<p>sdfsdf</p>
<p>sdfsdf</p>
<p>sdfsdf</p>
<p>sdfsdf</p>
</div>
<div class="col-xs-3 right-side">
asdfdf
</div>
</div>
I run it (eg.): top -b | egrep -w 'java|mysqld'
def query(id):
for line in file:
table = line.split(";")
if id == int(table[0]):
yield table
id = int(input("Enter the ID of the user: "))
for id_, name, city in query(id):
print("ID: " + id_)
print("Name: " + name)
print("City: " + city)
file.close()
Using yield..
I face the same issue. After debug I fixed the same. if the column name in your sql query has multiple times then this issue occur. Hence use alias in sql query to differ the column name. Ex: The below query will work proper in sql query but create issue in SSRS report:
Select P.ID, P.FirstName, P.LastName, D.ID, D.City, D.Area, D.Address From PersonalDetails P Left Join CommunicationDetails D On P.ID = D.PersonalDetailsID
Reason : ID has mentioned twice (Multiple Times)
Correct Query:
Select P.ID As PersonalDetailsID, P.FirstName, P.LastName, D.ID, D.City, D.Area, D.Address From PersonalDetails P Left Join CommunicationDetails D On P.ID = D.PersonalDetailsID
Add a listener to the underlying Document, which is automatically created for you.
// Listen for changes in the text
textField.getDocument().addDocumentListener(new DocumentListener() {
public void changedUpdate(DocumentEvent e) {
warn();
}
public void removeUpdate(DocumentEvent e) {
warn();
}
public void insertUpdate(DocumentEvent e) {
warn();
}
public void warn() {
if (Integer.parseInt(textField.getText())<=0){
JOptionPane.showMessageDialog(null,
"Error: Please enter number bigger than 0", "Error Message",
JOptionPane.ERROR_MESSAGE);
}
}
});
One more example for 2 dimension String array:
public void arrayExam() {
List<String[]> A = new ArrayList<String[]>();
A.add(new String[] {"Jack","good"});
A.add(new String[] {"Mary","better"});
A.add(new String[] {"Kate","best"});
for (String[] row : A) {
Log.i(TAG,row[0] + "->" + row[1]);
}
}
Output:
17467 08-02 19:24:40.518 8456 8456 I MyExam : Jack->good
17468 08-02 19:24:40.518 8456 8456 I MyExam : Mary->better
17469 08-02 19:24:40.518 8456 8456 I MyExam : Kate->best
As Paul stated, it's because 'a'
is an int
in C but a char
in C++.
I cover that specific difference between C and C++ in something I wrote a few years ago, at: http://david.tribble.com/text/cdiffs.htm
In case the browser LAN proxy setting solution doesn't work for you:
As mentioned in this similar Q&A How to solve ERR_CONNECTION_REFUSED when trying to connect to localhost running IISExpress - Error 502 (Cannot debug from Visual Studio)?
Simply changing the port number of your web project can be a quick fix.