I created a small portable wrapper script called "xargsL" around "xargs" which addresses most of the problems.
Contrary to xargs, xargsL accepts one pathname per line. The pathnames may contain any character except (obviously) newline or NUL bytes.
No quoting is allowed or supported in the file list - your file names may contain all sorts of whitespace, backslashes, backticks, shell wildcard characters and the like - xargsL will process them as literal characters, no harm done.
As an added bonus feature, xargsL will not run the command once if there is no input!
Note the difference:
$ true | xargs echo no data
no data
$ true | xargsL echo no data # No output
Any arguments given to xargsL will be passed through to xargs.
Here is the "xargsL" POSIX shell script:
#! /bin/sh # Line-based version of "xargs" (one pathname per line which may contain any # amount of whitespace except for newlines) with the added bonus feature that # it will not execute the command if the input file is empty. # # Version 2018.76.3 # # Copyright (c) 2018 Guenther Brunthaler. All rights reserved. # # This script is free software. # Distribution is permitted under the terms of the GPLv3. set -e trap 'test $? = 0 || echo "$0 failed!" >& 2' 0 if IFS= read -r first then { printf '%s\n' "$first" cat } | sed 's/./\\&/g' | xargs ${1+"$@"} fi
Put the script into some directory in your $PATH and don't forget to
$ chmod +x xargsL
the script there to make it executable.
If you want search for printable strings, you can use:
strings -ao filename | grep string
strings will output all printable strings from a binary with offsets, and grep will search within.
If you want search for any binary string, here is your friend:
You can use
cat file.txt | xargs -i sh -c 'command {} | command2 {} && command3 {}'
{} = variable for each line on the text file
find . -name 'Lemon*.mp3' -print0 | xargs -0 -i mplayer '{}'
This helped in my case to delete different files with spaces. It should work too with mplayer. The necessary trick is the quotes. (Tested on Linux Xubuntu 14.04.)
In your example, the point of piping the output of find to xargs is that the standard behavior of find's -exec option is to execute the command once for each found file. If you're using find, and you want its standard behavior, then the answer is simple - don't use xargs to begin with.
We see this a lot with OAuth2 integrations. We provide API services to our Customers, and they'll naively try to put their private key into an AJAX call. This is really poor security. And well-coded API Gateways, backends for frontend, and other such proxies, do not allow this. You should get this error.
I will quote @aspillers comment and change a single word: "Access-Control-Allow-Origin
is a header sent in a server response which indicates IF the client is allowed to see the contents of a result".
ISSUE: The problem is that a developer is trying to include their private key inside a client-side (browser) JavaScript request. They will get an error, and this is because they are exposing their client secret.
SOLUTION: Have the JavaScript web application talk to a backend service that holds the client secret securely. That backend service can authenticate the web app to the OAuth2 provider, and get an access token. Then the web application can make the AJAX call.
Binding the scroll event after the ul has loaded using ajax has solved the issue. In my findings $(document).on( 'scroll', '#id', function () {...}) is not working and binding the scroll event after the ajax load found working.
$("#ulId").bind('scroll', function() {
console.log('Event worked');
});
You may unbind the event after removing or replacing the ul.
Hope it may help someone.
In my case, my server was configured to work only in https mode, and error occured when I try to access http mode. So changing http://my-service
to https://my-service
helped.
you can do try lodash
Example code for json object:
var user = {'user':'barney','age':36};
user["newKey"] = true;
console.log(user);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script>
<script src="lodash.js"></script>
_x000D_
for json array elements
Example code:
var users = [
{ 'user': 'barney', 'age': 36 },
{ 'user': 'fred', 'age': 40 }
];
users.map(i=>{i["newKey"] = true});
console.log(users);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script>
<script src="lodash.js"></script>
_x000D_
let str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
let regexp = /[a-d]/gi;
console.log(str.match(regexp));
Another nifty way is:
DATEADD(dd, 0, DATEDIFF(dd, 0, [YourDate]))
Which gets the number of days from DAY 0 to YourDate and the adds it to DAY 0 to set the baseline again. This method (or "derivatives" hereof) can be used for a bunch of other date manipulation.
Edit - other date calculations:
First Day of Month:
DATEADD(mm, DATEDIFF(mm, 0, getdate()), 0)
First Day of the Year:
DATEADD(yy, DATEDIFF(yy, 0, getdate()), 0)
First Day of the Quarter:
DATEADD(qq, DATEDIFF(qq, 0, getdate()), 0)
Last Day of Prior Month:
DATEADD(ms, -3, DATEADD(mm, DATEDIFF(mm, 0, getdate()), 0))
Last Day of Current Month:
DATEADD(ms, -3, DATEADD(mm, DATEDIFF(m, 0, getdate()) + 1, 0))
Last Day of Current Year:
DATEADD(ms, -3, DATEADD(yy, DATEDIFF(yy, 0, getdate()) + 1, 0))
First Monday of the Month:
DATEADD(wk, DATEDIFF(wk, 0, DATEADD(dd, 6 - DATEPART(day, getdate()), getdate())), 0)
Edit: True, Joe, it does not add it to DAY 0, it adds 0 (days) to the number of days which basically just converts it back to a datetime.
How did you try it? Maybe you are working with \
and omit proper escaping.
Instead of
open('\\HOST\share\path\to\file')
use either Johnsyweb's solution with the /
s, or try one of
open(r'\\HOST\share\path\to\file')
or
open('\\\\HOST\\share\\path\\to\\file')
.
apktool is THE way to go. Online apktool service exists as well: http://www.javadecompilers.com/apktool
Some limitations, obviously, exist due to the service ‘online nature’: you may extract and research assets and the manifest file, but it is impossible to recompile the application at the moment.
Still, this is a no-hassle way to 'open' the android application.
One more way to do this is:
git config remote.origin.url https://github.com/abc/abc.git
To see the existing URL just do:
git config remote.origin.url
I have modified the answer which @Christian Del Bianco is given. I changed the process for .net core 2 and upper as project.json file now absolute.
First, create appsettings.json file in root directory. with the content
{
// Possible string values reported below. When empty it use ENV
variable value or Visual Studio setting.
// - Production
// - Staging
// - Test
// - Development
"ASPNETCORE_ENVIRONMENT": "Development"
}
Then create another two setting file appsettings.Development.json and appsettings.Production.json with the necessary configuration.
Add necessary code to set up the environment to Program.cs file.
public class Program
{
public static void Main(string[] args)
{
var logger = NLogBuilder.ConfigureNLog("nlog.config").GetCurrentClassLogger();
***var currentDirectoryPath = Directory.GetCurrentDirectory();
var envSettingsPath = Path.Combine(currentDirectoryPath, "envsettings.json");
var envSettings = JObject.Parse(File.ReadAllText(envSettingsPath));
var enviromentValue = envSettings["ASPNETCORE_ENVIRONMENT"].ToString();***
try
{
***CreateWebHostBuilder(args, enviromentValue).Build().Run();***
}
catch (Exception ex)
{
//NLog: catch setup errors
logger.Error(ex, "Stopped program because of setup related exception");
throw;
}
finally
{
NLog.LogManager.Shutdown();
}
}
public static IWebHostBuilder CreateWebHostBuilder(string[] args, string enviromentValue) =>
WebHost.CreateDefaultBuilder(args)
.UseStartup<Startup>()
.ConfigureLogging(logging =>
{
logging.ClearProviders();
logging.SetMinimumLevel(Microsoft.Extensions.Logging.LogLevel.Trace);
})
.UseNLog()
***.UseEnvironment(enviromentValue);***
}
Add the envsettings.json to your .csproj file for copy to published directory.
<ItemGroup>
<None Include="envsettings.json" CopyToPublishDirectory="Always" />
</ItemGroup>
Now just change the ASPNETCORE_ENVIRONMENT as you want in envsettings.json file and published.
Use the website mentioned in previous posts to create the icons:http://android-ui-utils.googlecode.com/hg/asset-studio/dist/index.html Unzip folder and Go into you file explorer on (windows or mac) find AndroidStudioProjects > "app name" > app > src > main (replace the web one here)> res (replace the rest with the one from the unzipped folder the you already downloaded)
*Close android studio so that you can make changes and when android studio is opened again the changes will appear
A very simple flex solution that does not assume fixed heights or changing position of elements.
HTML
<div class="container">
<header></header>
<main></main>
<footer></footer>
</div>
CSS
.container {
display: flex;
flex-direction: column;
min-height: 100vh;
}
main {
flex: 1;
}
Browser Support
All major browsers, except IE11 and below.
Make sure to use Autoprefixer for appropriate prefixes.
.container {_x000D_
display: -webkit-box;_x000D_
display: -ms-flexbox;_x000D_
display: flex;_x000D_
-webkit-box-orient: vertical;_x000D_
-webkit-box-direction: normal;_x000D_
-ms-flex-direction: column;_x000D_
flex-direction: column;_x000D_
min-height: 100vh;_x000D_
}_x000D_
_x000D_
main {_x000D_
-webkit-box-flex: 1;_x000D_
-ms-flex: 1;_x000D_
flex: 1;_x000D_
}_x000D_
_x000D_
/////////////////////////////////////////////_x000D_
_x000D_
body,_x000D_
html {_x000D_
margin: 0;_x000D_
padding: 0;_x000D_
}_x000D_
_x000D_
header,_x000D_
main,_x000D_
footer {_x000D_
margin: 0;_x000D_
display: block;_x000D_
}_x000D_
_x000D_
header,_x000D_
footer {_x000D_
min-height: 80px; _x000D_
}_x000D_
_x000D_
header {_x000D_
background-color: #ccc;_x000D_
}_x000D_
_x000D_
main {_x000D_
background-color: #f4f4f4;_x000D_
}_x000D_
_x000D_
footer {_x000D_
background-color: orange;_x000D_
}
_x000D_
<div class="container">_x000D_
<header></header>_x000D_
<main></main>_x000D_
<footer></footer>_x000D_
</div>
_x000D_
See this blog post. It uses jQuery, but it should help you even if you are not using it.
Basically you add this to your document.ready()
$('iframe').load(function() {
RunAfterIFrameLoaded();
});
The issue was produced by some libRN...a files. I fixed it by removing some of them like libRNScreens.a and libRNGestureHandler.a from Build Phases -> Link Binary with Libraries since they were already being referenced from another libraries. Others had to be replaced by their Pod version like libRNDeviceInfo.a:
This is using Captain Cucumber's answer, but with 2 additions.
1) allowing the function to get non scientific notation numbers and just return them as is (so you can throw a lot of input that some of the numbers are 0.00003123 vs 3.123e-05 and still have function work.
2) added support for negative numbers. (in original function, a negative number would end up like 0.0000-108904 from -1.08904e-05)
def getExpandedScientificNotation(flt):
was_neg = False
if not ("e" in flt):
return flt
if flt.startswith('-'):
flt = flt[1:]
was_neg = True
str_vals = str(flt).split('e')
coef = float(str_vals[0])
exp = int(str_vals[1])
return_val = ''
if int(exp) > 0:
return_val += str(coef).replace('.', '')
return_val += ''.join(['0' for _ in range(0, abs(exp - len(str(coef).split('.')[1])))])
elif int(exp) < 0:
return_val += '0.'
return_val += ''.join(['0' for _ in range(0, abs(exp) - 1)])
return_val += str(coef).replace('.', '')
if was_neg:
return_val='-'+return_val
return return_val
Siamore, I keep seeing everyone using the command line to compile programs. I use x11 terminal from ide via code::blocks, a gnu gcc compiler on my linux box. I have never compiled a program from command line. So Siamore, if I want the programs name to be cp, do I initialize argv[0]="cp"; Cp being a string literal. And anything going to stdout goes on the command line??? The example you gave me Siamore I understood! Even though the string you entered was a few words long, it was still only one arg. Because it was encased in double quotations. So arg[0], the prog name, is actually your string literal with a new line character?? So I understand why you use if(argc!=3) print error. Because the prog name = argv[0] and there are 2 more args after that, and anymore an error has occured. What other reason would I use that? I really think that my lack of understanding about how to compile from the command line or terminal is my reason for lack understanding in this area!! Siamore, you have helped me understand cla's much better! Still don't fully understand but I am not oblivious to the concept. I'm gonna learn to compile from the terminal then re-read what you wrote. I bet, then I will fully understand! With a little more help from you lol
<> Code that I have not written myself, but from my book.
#include <stdio.h>
int main(int argc, char *argv[])
{
int i;
printf("The following arguments were passed to main(): ");
for(i=1; i<argc; i++) printf("%s ", argv[i]);
printf("\n");
return 0;
}
This is the output:
anthony@anthony:~\Documents/C_Programming/CLA$ ./CLA hey man
The follow arguments were passed to main(): hey man
anthony@anthony:~\Documents/C_Programming/CLA$ ./CLA hi how are you doing?
The follow arguments were passed to main(): hi how are you doing?
So argv is a table of string literals, and argc is the number of them. Now argv[0] is the name of the program. So if I type ./CLA to run the program ./CLA is argv[0]. The above program sets the command line to take an infinite amount of arguments. I can set them to only take 3 or 4 if I wanted. Like one or your examples showed, Siamore... if(argc!=3) printf("Some error goes here"); Thank you Siamore, couldn't have done it without you! thanks to the rest of the post for their time and effort also!
PS in case there is a problem like this in the future...you never know lol the problem was because I was using the IDE AKA Code::Blocks. If I were to run that program above it would print the path/directory of the program. Example: ~/Documents/C/CLA.c it has to be ran from the terminal and compiled using the command line. gcc -o CLA main.c and you must be in the directory of the file.
.parent-container {
display: flex;
justify-content: center;
align-items: center;
}
.child-canvas {
flex-shrink: 0;
}
Most of the solutions presented here would crash for large values and should not be used in production code.
If you don't care for very large values use this code to clamp the Double
to max/min Int
values.
let bigFloat = Float.greatestFiniteMagnitude
let smallFloat = -bigFloat
extension Float {
func toIntTruncated() -> Int {
let maxTruncated = min(self, Float(Int.max).nextDown)
let bothTruncated = max(maxTruncated, Float(Int.min))
return Int(bothTruncated)
}
}
// This crashes:
// let bigInt = Int(bigFloat)
// this works for values up to 9223371487098961920
let bigInt = bigFloat.toIntTruncated()
let smallInt = smallFloat.toIntTruncated()
You should use the built in line separator. The advantage is that you don't have to concern what system you code is running on, it will just work.
Since Java 1.7
System.lineSeparator()
Pre Java 1.7
System.getProperty("line.separator")
There is no such option. What you can do is to run mkdir -p before copying the file
I made a very cool script you can use to copy files in locations that doesn't exist
#!/bin/bash
if [ ! -d "$2" ]; then
mkdir -p "$2"
fi
cp -R "$1" "$2"
Now just save it, give it permissions and run it using
./cp-improved SOURCE DEST
I put -R option but it's just a draft, I know it can be and you will improve it in many ways. Hope it helps you
Integer.MAX_VALUE is max size of string + depends of your memory size but the Problem on sphere's online judge you don't have to use those functions
I have had the same error on the test server but not in local. After a few minutes, I discovered that the IDE wasn't synchronized with the pom.xml. Here is how I solve it:
You can specify how many times you want the previous item to match by using {min,max}
.
{[0-9]{1,3}:[0-9]{1,3}}
Also, you can use \d
for digits instead of [0-9]
for most regex flavors:
{\d{1,3}:\d{1,3}}
You may also want to consider escaping the outer {
and }
, just to make it clear that they are not part of a repetition definition.
Your best bet is to change that column to a timestamp. MySQL will automatically use the first timestamp in a row as a 'last modified' value and update it for you. This is configurable if you just want to save creation time.
See doc http://dev.mysql.com/doc/refman/5.7/en/timestamp-initialization.html
Two generic ways to do the same thing... I'm not aware of any specific open solutions to do this, but it'd be rather trivial to do.
You could write a daily or weekly cron/jenkins job to scrape the previous time period's email from the archive looking for your keyworkds/combinations. Sending a batch digest with what it finds, if anything.
But personally, I'd Setup a specific email account to subscribe to the various security lists you're interested in. Add a simple automated script to parse the new emails for various keywords or combinations of keywords, when it finds a match forward that email on to you/your team. Just be sure to keep the keywords list updated with new products you're using.
You could even do this with a gmail account and custom rules, which is what I currently do, but I have setup an internal inbox in the past with a simple python script to forward emails that were of interest.
Turns out that I just have to convert @column
name testName to all small letters, since it was initially in camel case.
Although I was not able to use the official answer, the question was able to help me solve my problem by letting me know what to investigate.
Change:
@Column(name="testName")
private String testName;
To:
@Column(name="testname")
private String testName;
Another way to do this is to use the copy constructor:
Collection<E> oldSet = ...
TreeSet<E> newSet = new TreeSet<E>(oldSet);
Or create an empty set and add the elements:
Collection<E> oldSet = ...
TreeSet<E> newSet = new TreeSet<E>();
newSet.addAll(oldSet);
Unlike clone
these allow you to use a different set class, a different comparator, or even populate from some other (non-set) collection type.
Note that the result of copying a Set
is a new Set
containing references to the objects that are elements if the original Set
. The element objects themselves are not copied or cloned. This conforms with the way that the Java Collection
APIs are designed to work: they don't copy the element objects.
I had a similar kind of scenario, but in my case string is not a 1st level attribute. It is inside an object. In here I couldn't find a suitable answer for it. So I thought to share my solution with you all(Hope this will help anyone with a similar kind of problem).
Parent Collection
{
"Child":
{
"name":"Random Name",
"Age:"09"
}
}
Ex: If we need to get only collections that having child's name's length is higher than 10 characters.
db.getCollection('Parent').find({$where: function() {
for (var field in this.Child.name) {
if (this.Child.name.length > 10)
return true;
}
}})
you can use jquery validator for that but you need to add jquery.validate.js and jquery.form.js file for that. after including validator file define your validation something like this.
<script type="text/javascript">
$(document).ready(function(){
$("#formID").validate({
rules :{
"data[User][name]" : {
required : true
}
},
messages :{
"data[User][name]" : {
required : 'Enter username'
}
}
});
});
</script>
You can see required : true
same there is many more property like for email you can define email : true
for number number : true
Since this is one of the top search results for questions related to this I felt it was worth mentioning how you can make this work with Kendo().DropDownListFor() as well.
Everything is the same as with OnaBai's post except for how you select the item based off of its text and your selector.
To do that you would swap out dataItem.symbol for dataItem.[DataTextFieldName]. Whatever model field you used for .DataTextField() is what you will be comparing against.
@(Html.Kendo().DropDownListFor(model => model.Status.StatusId)
.Name("Status.StatusId")
.DataTextField("StatusName")
.DataValueField("StatusId")
.BindTo(...)
)
//So that your ViewModel gets bound properly on the post, naming is a bit
//different and as such you need to replace the periods with underscores
var ddl = $('#Status_StatusId').data('kendoDropDownList');
ddl.select(function(dataItem) {
return dataItem.StatusName === "Active";
});
Since this thread is a popular result in google search, here is the way to do it for sublime text 3 build 3059+: in user preferences, add the line:
"show_encoding": true
Remove untracked files (uncommitted local changes)
git clean -df
Permanently deleting all local commits and get latest remote commit
git reset --hard origin/<branch_name>
You can not drop the foreign key column because it is being referenced from the table assignmentStuff
. So you should first drop the foreign key constraint assignmentStuff.assignmentIDX
.
A similar question has already been asked here. Check also here for more info.
I believe the reson of being is you have to first check whether or not Optional is null itself and then try to evaluate value it wraps. Too many unnecessary validations.
You can create a DIV
component using the <h:panelGroup/>
.
By default, the <h:panelGroup/>
will generate a SPAN in the HTML code.
However, if you specify layout="block"
, then the component will be a DIV
in the generated HTML code.
<h:panelGroup layout="block"/>
As of iOS 9 and OS X 10.11, you can use the new GameplayKit classes to generate random numbers in a variety of ways.
You have four source types to choose from: a general random source (unnamed, down to the system to choose what it does), linear congruential, ARC4 and Mersenne Twister. These can generate random ints, floats and bools.
At the simplest level, you can generate a random number from the system's built-in random source like this:
NSInteger rand = [[GKRandomSource sharedRandom] nextInt];
That generates a number between -2,147,483,648 and 2,147,483,647. If you want a number between 0 and an upper bound (exclusive) you'd use this:
NSInteger rand6 = [[GKRandomSource sharedRandom] nextIntWithUpperBound:6];
GameplayKit has some convenience constructors built in to work with dice. For example, you can roll a six-sided die like this:
GKRandomDistribution *d6 = [GKRandomDistribution d6];
[d6 nextInt];
Plus you can shape the random distribution by using things like GKShuffledDistribution
.
I was unable to find name of an error for given code when developing in Swift. For that reason I paste minus codes for NSURLErrorDomain
taken from NSURLError.h
/*!
@enum NSURL-related Error Codes
@abstract Constants used by NSError to indicate errors in the NSURL domain
*/
NS_ENUM(NSInteger)
{
NSURLErrorUnknown = -1,
NSURLErrorCancelled = -999,
NSURLErrorBadURL = -1000,
NSURLErrorTimedOut = -1001,
NSURLErrorUnsupportedURL = -1002,
NSURLErrorCannotFindHost = -1003,
NSURLErrorCannotConnectToHost = -1004,
NSURLErrorNetworkConnectionLost = -1005,
NSURLErrorDNSLookupFailed = -1006,
NSURLErrorHTTPTooManyRedirects = -1007,
NSURLErrorResourceUnavailable = -1008,
NSURLErrorNotConnectedToInternet = -1009,
NSURLErrorRedirectToNonExistentLocation = -1010,
NSURLErrorBadServerResponse = -1011,
NSURLErrorUserCancelledAuthentication = -1012,
NSURLErrorUserAuthenticationRequired = -1013,
NSURLErrorZeroByteResource = -1014,
NSURLErrorCannotDecodeRawData = -1015,
NSURLErrorCannotDecodeContentData = -1016,
NSURLErrorCannotParseResponse = -1017,
NSURLErrorAppTransportSecurityRequiresSecureConnection NS_ENUM_AVAILABLE(10_11, 9_0) = -1022,
NSURLErrorFileDoesNotExist = -1100,
NSURLErrorFileIsDirectory = -1101,
NSURLErrorNoPermissionsToReadFile = -1102,
NSURLErrorDataLengthExceedsMaximum NS_ENUM_AVAILABLE(10_5, 2_0) = -1103,
// SSL errors
NSURLErrorSecureConnectionFailed = -1200,
NSURLErrorServerCertificateHasBadDate = -1201,
NSURLErrorServerCertificateUntrusted = -1202,
NSURLErrorServerCertificateHasUnknownRoot = -1203,
NSURLErrorServerCertificateNotYetValid = -1204,
NSURLErrorClientCertificateRejected = -1205,
NSURLErrorClientCertificateRequired = -1206,
NSURLErrorCannotLoadFromNetwork = -2000,
// Download and file I/O errors
NSURLErrorCannotCreateFile = -3000,
NSURLErrorCannotOpenFile = -3001,
NSURLErrorCannotCloseFile = -3002,
NSURLErrorCannotWriteToFile = -3003,
NSURLErrorCannotRemoveFile = -3004,
NSURLErrorCannotMoveFile = -3005,
NSURLErrorDownloadDecodingFailedMidStream = -3006,
NSURLErrorDownloadDecodingFailedToComplete =-3007,
NSURLErrorInternationalRoamingOff NS_ENUM_AVAILABLE(10_7, 3_0) = -1018,
NSURLErrorCallIsActive NS_ENUM_AVAILABLE(10_7, 3_0) = -1019,
NSURLErrorDataNotAllowed NS_ENUM_AVAILABLE(10_7, 3_0) = -1020,
NSURLErrorRequestBodyStreamExhausted NS_ENUM_AVAILABLE(10_7, 3_0) = -1021,
NSURLErrorBackgroundSessionRequiresSharedContainer NS_ENUM_AVAILABLE(10_10, 8_0) = -995,
NSURLErrorBackgroundSessionInUseByAnotherProcess NS_ENUM_AVAILABLE(10_10, 8_0) = -996,
NSURLErrorBackgroundSessionWasDisconnected NS_ENUM_AVAILABLE(10_10, 8_0)= -997,
};
You can use mosquitto_sub
(which is part of the mosquitto-clients
package) and subscribe to the wildcard topic #
:
mosquitto_sub -v -h broker_ip -p 1883 -t '#'
The reason may be that watcher is declared as local variable to a method and it is garbage collected when the method finishes. You should declare it as a class member. Try the following:
FileSystemWatcher watcher;
private void watch()
{
watcher = new FileSystemWatcher();
watcher.Path = path;
watcher.NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite
| NotifyFilters.FileName | NotifyFilters.DirectoryName;
watcher.Filter = "*.*";
watcher.Changed += new FileSystemEventHandler(OnChanged);
watcher.EnableRaisingEvents = true;
}
private void OnChanged(object source, FileSystemEventArgs e)
{
//Copies file to another directory.
}
For maintainability, I would attach the "blocking" handler on the element itself (in your case, the canvas).
theCanvas.onkeydown = function (e) {
if (e.key === 'ArrowUp' || e.key === 'ArrowDown') {
e.view.event.preventDefault();
}
}
Why not simply do window.event.preventDefault()
? MDN states:
window.event
is a proprietary Microsoft Internet Explorer property which is only available while a DOM event handler is being called. Its value is the Event object currently being handled.
Further readings:
If you want to allow Html tags only for few textbox in mvc
You can do one thing
in controller
[ValidateInput(false)]
public ActionResult CreateNewHtml() //view
{
return View();
}
[ValidateInput(false)]
[HttpPost]
public ActionResult CreateNewHtml(cbs obj)//view cbs is database class
{
repo.AddHtml(obj);
return View();
}
The variable item
is a string. An index looks like this:
>>> mystring = 'helloworld'
>>> print mystring[0]
'h'
The above example uses the 0
index of the string to refer to the first character.
Strings can't have string indices (like dictionaries can). So this won't work:
>>> mystring = 'helloworld'
>>> print mystring['stringindex']
TypeError: string indices must be integers
I ended up using export command rather than update command. This is the post-commit hook
"C:\Program Files\VisualSVN Server\bin\svn.exe" export "D:\xampp\htdocs\test-lalala" --quiet --non-interactive --force --username myusername --password mypassword
Someone should add that one cannot catch "crashes" in C++ code. Those don't throw exceptions, but do anything they like. When you see a program crashing because of say a null-pointer dereference, it's doing undefined behavior. There is no std::null_pointer_exception
. Trying to catch exceptions won't help there.
Just for the case someone is reading this thread and thinks he can get the cause of the program crashes. A Debugger like gdb should be used instead.
Supplemental to VonC's and chhh's answers.
git show experiment:path/to/relative/app.js > app.js
# If your current working directory is relative than just use
git show experiment:app.js > app.js
or
git checkout experiment -- app.js
No, but here's a simple pseudorandom generator, an implementation of Multiply-with-carry I adapted from Wikipedia (has been removed since):
var m_w = 123456789;
var m_z = 987654321;
var mask = 0xffffffff;
// Takes any integer
function seed(i) {
m_w = (123456789 + i) & mask;
m_z = (987654321 - i) & mask;
}
// Returns number between 0 (inclusive) and 1.0 (exclusive),
// just like Math.random().
function random()
{
m_z = (36969 * (m_z & 65535) + (m_z >> 16)) & mask;
m_w = (18000 * (m_w & 65535) + (m_w >> 16)) & mask;
var result = ((m_z << 16) + (m_w & 65535)) >>> 0;
result /= 4294967296;
return result;
}
EDIT: fixed seed function by making it reset m_z
EDIT2: Serious implementation flaws have been fixed
You had better use find_library command instead of link_directories. Concretely speaking there are two ways:
designate the path within the command
find_library(NAMES gtest PATHS path1 path2 ... pathN)
set the variable CMAKE_LIBRARY_PATH
set(CMAKE_LIBRARY_PATH path1 path2)
find_library(NAMES gtest)
the reason is as flowings:
Note This command is rarely necessary and should be avoided where there are other choices. Prefer to pass full absolute paths to libraries where possible, since this ensures the correct library will always be linked. The find_library() command provides the full path, which can generally be used directly in calls to target_link_libraries(). Situations where a library search path may be needed include: Project generators like Xcode where the user can switch target architecture at build time, but a full path to a library cannot be used because it only provides one architecture (i.e. it is not a universal binary).
Libraries may themselves have other private library dependencies that expect to be found via RPATH mechanisms, but some linkers are not able to fully decode those paths (e.g. due to the presence of things like $ORIGIN).
If a library search path must be provided, prefer to localize the effect where possible by using the target_link_directories() command rather than link_directories(). The target-specific command can also control how the search directories propagate to other dependent targets.
If you are on an AWS EC2 instance running an Ubuntu instance (tested on Ubuntu 16.x), then these steps might work for you:
sudo apt-get update sudo apt-get --purge remove node -y sudo apt-get --purge remove nodejs -y sudo apt-get --purge remove legacy-node -y sudo rm /usr/bin/node curl -sL https://deb.nodesource.com/setup_6.x | sudo bash - sudo apt-get install nodejs -y node -v
If all is correct the last command shall have an output like : v6.x.x
If not then run the following:
sudo ln -s /usr/bin/nodejs /usr/bin/node
Hopefully this will help. It helped me magically (hehe).
d3.select("div#chartId")
.append("div")
// Container class to make it responsive.
.classed("svg-container", true)
.append("svg")
// Responsive SVG needs these 2 attributes and no width and height attr.
.attr("preserveAspectRatio", "xMinYMin meet")
.attr("viewBox", "0 0 600 400")
// Class to make it responsive.
.classed("svg-content-responsive", true)
// Fill with a rectangle for visualization.
.append("rect")
.classed("rect", true)
.attr("width", 600)
.attr("height", 400);
_x000D_
.svg-container {
display: inline-block;
position: relative;
width: 100%;
padding-bottom: 100%; /* aspect ratio */
vertical-align: top;
overflow: hidden;
}
.svg-content-responsive {
display: inline-block;
position: absolute;
top: 10px;
left: 0;
}
svg .rect {
fill: gold;
stroke: steelblue;
stroke-width: 5px;
}
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>
<div id="chartId"></div>
_x000D_
As of the latest Bootstrap (3.1.x), the way to achieve a fluid layout it to use .container-fluid
class.
See Bootstrap grid for reference
"No suitable driver" usually means that the JDBC
URL you've supplied to connect has incorrect syntax or when the driver isn't loaded at all.
When the method getConnection is called, the DriverManager
will attempt to locate a suitable driver from amongst those loaded at initialization and those loaded explicitly using the same classloader as the current applet or application.(using Class.forName()
)
For Example
import oracle.jdbc.driver.OracleDriver;
Class.forName("oracle.jdbc.driver.OracleDriver");
Also check that you have ojdbc6.jar
in your classpath. I would suggest to place .jar
at physical location to JBoss "$JBOSS_HOME/server/default/lib/"
directory of your project.
EDIT:
You have mentioned hibernate
lately.
Check that your hibernate.cfg.xml
file has connection properties something like this:
<property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
<property name="hibernate.connection.url">jdbc:oracle:thin:@localhost:1521:orcl</property>
<property name="hibernate.connection.username">scott</property>
<property name="hibernate.connection.password">tiger</property>
I have encountered this problem as well. Here is my solution:
Below is the error while running a small Spring Application:-
*HTTP Status 500 -
--------------------------------------------------------------------------------
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: An exception occurred processing JSP page /WEB-INF/jsp/employe.jsp at line 12
9: <form:form method="POST" commandName="command" action="/SpringWeb/addEmploye">
10: <table>
11: <tr>
12: <td><form:label path="name">Name</form:label></td>
13: <td><form:input path="name" /></td>
14: </tr>
15: <tr>
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:568)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:465)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1060)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:798)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:716)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
root cause
java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'command' available as request attribute
org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:141)
org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getBindStatus(AbstractDataBoundFormElementTag.java:174)
org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getPropertyPath(AbstractDataBoundFormElementTag.java:194)
org.springframework.web.servlet.tags.form.LabelTag.autogenerateFor(LabelTag.java:129)
org.springframework.web.servlet.tags.form.LabelTag.resolveFor(LabelTag.java:119)
org.springframework.web.servlet.tags.form.LabelTag.writeTagContent(LabelTag.java:89)
org.springframework.web.servlet.tags.form.AbstractFormTag.doStartTagInternal(AbstractFormTag.java:102)
org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:79)
org.apache.jsp.WEB_002dINF.jsp.employe_jsp._jspx_meth_form_005flabel_005f0(employe_jsp.java:185)
org.apache.jsp.WEB_002dINF.jsp.employe_jsp._jspx_meth_form_005fform_005f0(employe_jsp.java:120)
org.apache.jsp.WEB_002dINF.jsp.employe_jsp._jspService(employe_jsp.java:80)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1060)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:798)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:716)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.26 logs.*
In order to resolve this issue you need to do the following in the controller class:-
import org.springframework.web.portlet.ModelAndView;
"
to "import org.springframework.web.servlet.ModelAndView;
"...Another possible solution, with usage of Array#reduce
.
const arr = ["apple", "orange", "raspberry"];
const arr2 = [1, 2, 4];
const insert = (arr, item, index) =>
arr.reduce(function(s, a, i) {
i === index ? s.push(item, a) : s.push(a);
return s;
}, []);
console.log(insert(arr, "banana", 1));
console.log(insert(arr2, 3, 2))
_x000D_
import java.util.Scanner;
public class LargestSmallestNumbers {
private static Scanner input;
public static void main(String[] args) {
int count,items;
int newnum =0 ;
int highest=0;
int lowest =0;
input = new Scanner(System.in);
System.out.println("How many numbers you want to enter?");
items = input.nextInt();
System.out.println("Enter "+items+" numbers: ");
for (count=0; count<items; count++){
newnum = input.nextInt();
if (highest<newnum)
highest=newnum;
if (lowest==0)
lowest=newnum;
else if (newnum<=lowest)
lowest=newnum;
}
System.out.println("The highest number is "+highest);
System.out.println("The lowest number is "+lowest);
}
}
You can use:
String.prototype.replaceAll = function(search, replace) {
if (replace === undefined) {
return this.toString();
}
return this.split(search).join(replace);
}
with JQuery .toggle()
you can accomplish it easily
$( ".target" ).toggle();
Dim fileEntries As String() = Directory.GetFiles("YourPath", "*.txt")
' Process the list of .txt files found in the directory. '
Dim fileName As String
For Each fileName In fileEntries
If (System.IO.File.Exists(fileName)) Then
'Read File and Print Result if its true
ReadFile(fileName)
End If
TransfereFile(fileName, 1)
Next
Even easier, just CSS can resolve the problem:
input[type="text"], input[type="password"], textarea, select {
width: 200px;
border: 1px solid;
border-color: #C0C0C0 #E4E4E4 #E4E4E4 #C0C0C0;
background: #FFF;
padding: 8px 5px;
font: 16px Arial, Tahoma, Helvetica, sans-serif;
-moz-box-shadow: 0 0 5px #C0C0C0;
-moz-border-radius: 5px;
-webkit-box-shadow: 0 0 5px #C0C0C0;
-webkit-border-radius: 5px;
box-shadow: 0 0 5px #C0C0C0;
border-radius: 5px;
}
input[type="text"]:focus, input[type="password"]:focus, textarea:focus, select:focus {
border-color: #B6D5F7 #B6D5F7 #B6D5F7 #B6D5F7;
outline: none;
-moz-box-shadow: 0 0 10px #B6D5F7;
-webkit-box-shadow: 0 0 10px #B6D5F7;
box-shadow: 0 0 10px #B6D5F7;
}
Its very convenient with Django version 1.7 or higher as you have the JsonResponse class, which is a subclass of HttpResponse.
from django.http import JsonResponse
def profile(request):
data = {
'name': 'Raghav',
'location': 'India',
'is_active': False,
'count': 28
}
return JsonResponse(data)
For older versions of Django, you must use an HttpResponse object.
import json
from django.http import HttpResponse
def profile(request):
data = {
'name': 'Raghav',
'location': 'India',
'is_active': False,
'count': 28
}
dump = json.dumps(data)
return HttpResponse(dump, content_type='application/json')
Another way:
var testStr = "This is a test";
if(testStr.contains("test")){
alert("String Found");
}
** Tested on Firefox, Safari 6 and Chrome 36 **
There a few alternatives, both free and commercial. I haven't used any of them but in theory they should work:
Most will require you to keep the batch file as main executable, and then bundle node.exe and your scripts.
Depending on your script, you also have the option to port it to JSDB, which supports an easy way to create executables by simply appending resources to it.
A third quasi-solution is to keep node somewhere like C:\utils
and add this folder to your PATH
environment variable. Then you can create .bat files in that dir that run node + your preferred scripts - I got coffeescript's coffee
working on windows this way. This setup can be automated with a batch file, vb script or installer.
You can use gmmktime function without arguments to obtain the current UTC timestamp:
$time = gmmktime();
echo date("Y-m-d H:i:s", $time);
gmmktime will only work if your server time is using UTC. For example, my server is set to US/Pacific. the listed function above echos back Pacific time.
A combination of the answers to this question provides the most robust solution.
It worked for us in production-grade scripts with great support of dependencies and directory structure:
#!/bin/bash # Full path of the current script THIS=`readlink -f "${BASH_SOURCE[0]}" 2>/dev/null||echo $0` # The directory where current script resides DIR=`dirname "${THIS}"` # 'Dot' means 'source', i.e. 'include': . "$DIR/compile.sh"
The method supports all of these:
readlink
)${BASH_SOURCE[0]}
is more robust than $0
Is your server configured for client authentication? If so you need to pass the client certificate while connecting with the server.
For the substition impaired here is a real example from GitHub.com to a local directory:
svn ls https://github.com/rdcarp/playing-cards/trunk/PumpkinSoup.PlayingCards.Interfaces
svn export https://github.com/rdcarp/playing-cards/trunk/PumpkinSoup.PlayingCards.Interfaces /temp/SvnExport/Washburn
See: Download a single folder or directory from a GitHub repo for more details.
The file object is a buffer. When you read from the buffer, that portion that you read is consumed (the read position is shifted forward). When you read through the entire file, the read position is at the end of the file (EOF), so it returns nothing because there is nothing left to read.
If you have to reset the read position on a file object for some reason, you can do:
f.seek(0)
There is another the error happening which related to the order when calling initializing global variables. I've had the sample of code has similar error FailedPreconditionError (see above for traceback): Attempting to use uninitialized value W
def linear(X, n_input, n_output, activation = None):
W = tf.Variable(tf.random_normal([n_input, n_output], stddev=0.1), name='W')
b = tf.Variable(tf.constant(0, dtype=tf.float32, shape=[n_output]), name='b')
if activation != None:
h = tf.nn.tanh(tf.add(tf.matmul(X, W),b), name='h')
else:
h = tf.add(tf.matmul(X, W),b, name='h')
return h
from tensorflow.python.framework import ops
ops.reset_default_graph()
g = tf.get_default_graph()
print([op.name for op in g.get_operations()])
with tf.Session() as sess:
# RUN INIT
sess.run(tf.global_variables_initializer())
# But W hasn't in the graph yet so not know to initialize
# EVAL then error
print(linear(np.array([[1.0,2.0,3.0]]).astype(np.float32), 3, 3).eval())
You should change to following
from tensorflow.python.framework import ops
ops.reset_default_graph()
g = tf.get_default_graph()
print([op.name for op in g.get_operations()])
with tf.Session() as
# NOT RUNNING BUT ASSIGN
l = linear(np.array([[1.0,2.0,3.0]]).astype(np.float32), 3, 3)
# RUN INIT
sess.run(tf.global_variables_initializer())
print([op.name for op in g.get_operations()])
# ONLY EVAL AFTER INIT
print(l.eval(session=sess))
While AngularJS allows you to get a hand on a click event (and thus a target of it) with the following syntax (note the $event
argument to the setMaster
function; documentation here: http://docs.angularjs.org/api/ng.directive:ngClick):
function AdminController($scope) {
$scope.setMaster = function(obj, $event){
console.log($event.target);
}
}
this is not very angular-way of solving this problem. With AngularJS the focus is on the model manipulation. One would mutate a model and let AngularJS figure out rendering.
The AngularJS-way of solving this problem (without using jQuery and without the need to pass the $event
argument) would be:
<div ng-controller="AdminController">
<ul class="list-holder">
<li ng-repeat="section in sections" ng-class="{active : isSelected(section)}">
<a ng-click="setMaster(section)">{{section.name}}</a>
</li>
</ul>
<hr>
{{selected | json}}
</div>
where methods in the controller would look like this:
$scope.setMaster = function(section) {
$scope.selected = section;
}
$scope.isSelected = function(section) {
return $scope.selected === section;
}
Here is the complete jsFiddle: http://jsfiddle.net/pkozlowski_opensource/WXJ3p/15/
//backend.
@PostMapping("/")
public List<A> addList(@RequestBody A aObject){
//......ur code
}
class A{
int num;
String name;
List<B> bList;
//getters and setters and default constructor
}
class B{
int d;
//defalut Constructor & gettes&setters
}
// postman
{
"num":value,
"name":value,
"bList":[{
"key":"value",
"key":"value",.....
}]
}
Calling /search/
should result in "you submitted nothing", but calling /search/?q=
on the other hand should result in "you submitted u''"
Browsers have to add the q=
even when it's empty, because they have to include all fields which are part of the form. Only if you do some DOM manipulation in Javascript (or a custom javascript submit action), you might get such a behavior, but only if the user has javascript enabled. So you should probably simply test for non-empty strings, e.g:
if request.GET.get('q'):
message = 'You submitted: %r' % request.GET['q']
else:
message = 'You submitted nothing!'
If you initialize both the parameters as float
, you will sure get actual divided value.
For example:
float RoomWidth, TileWidth, NumTiles;
RoomWidth = 142;
TileWidth = 8;
NumTiles = RoomWidth/TileWidth;
Ans:17.75.
To declare a variable as a Decimal
, first declare it as a Variant
and then convert to Decimal
with CDec
. The type would be Variant/Decimal
in the watch window:
Considering that programming floating point arithmetic is not what one has studied during Maths classes at school, one should always try to avoid common pitfalls by converting to decimal whenever possible.
In the example below, we see that the expression:
0.1 + 0.11 = 0.21
is either True
or False
, depending on whether the collectibles (0.1,0.11) are declared as Double
or as Decimal
:
Public Sub TestMe()
Dim preciseA As Variant: preciseA = CDec(0.1)
Dim preciseB As Variant: preciseB = CDec(0.11)
Dim notPreciseA As Double: notPreciseA = 0.1
Dim notPreciseB As Double: notPreciseB = 0.11
Debug.Print preciseA + preciseB
Debug.Print preciseA + preciseB = 0.21 'True
Debug.Print notPreciseA + notPreciseB
Debug.Print notPreciseA + notPreciseB = 0.21 'False
End Sub
Using print_r
, var_dump
or var_export
should do it pretty nicely if you look at the result in view-source mode not in HTML mode or as @Joel Larson said if you wrap everything in a <pre>
tag.
print_r
is best for readability but it doesn't print null/false values.
var_dump
is best for checking types of values and lengths and null/false values.
var_export
is simmilar to var_dump
but it can be used to get the dumped string.
The format returned by any of these is indented correctly in the source code and var_export
can be used for logging since it can be used to return the dumped string.
Use the xdebug plug-in for PHP this prints var_dump
s as HTML formatted strings not as raw dump format and also allows you to supply a custom function you want to use for formatting.
To update entries other than appsettings
, simply use XmlDocument
.
public static void UpdateAppConfig(string tagName, string attributeName, string value)
{
var doc = new XmlDocument();
doc.Load(AppDomain.CurrentDomain.SetupInformation.ConfigurationFile);
var tags = doc.GetElementsByTagName(tagName);
foreach (XmlNode item in tags)
{
var attribute = item.Attributes[attributeName];
if (!ReferenceEquals(null, attribute))
attribute.Value = value;
}
doc.Save(AppDomain.CurrentDomain.SetupInformation.ConfigurationFile);
}
This is how you call it:
Utility.UpdateAppConfig("endpoint", "address", "http://localhost:19092/NotificationSvc/Notification.svc");
Utility.UpdateAppConfig("network", "host", "abc.com.au");
This method can be improved to cater for appSettings values as well.
<style type="text/css">
body {background:none transparent;
}
</style>
that might work (if you put in the iframe) along with
<iframe src="stuff.htm" allowtransparency="true">
assuming you have a SQL table called mydata - you can load data from a csv file as follows:
COPY MYDATA FROM '<PATH>/MYDATA.CSV' CSV HEADER;
For more details refer to: http://www.postgresql.org/docs/9.2/static/sql-copy.html
Let me try example
for x in 1 2 3 ; do { echo a $x ; sleep 1 ; echo b $x ; } & done ; sleep 10
And use jobs
to see what's running.
(n,) and (n,1) are not the same shape. Try casting the vector to an array by using the [:, None]
notation:
n_lists = np.append(n_list_converted, n_last[:, None], axis=1)
Alternatively, when extracting n_last
you can use
n_last = n_list_converted[:, -1:]
to get a (20, 1)
array.
function _arrayBufferToBase64(uarr) {
var strings = [], chunksize = 0xffff;
var len = uarr.length;
for (var i = 0; i * chunksize < len; i++){
strings.push(String.fromCharCode.apply(null, uarr.subarray(i * chunksize, (i + 1) * chunksize)));
}
return strings.join("");
}
This is better, if you use JSZip for unpack archive from string
From a quick glance on MDN I think you may need to include the .js
at the end of your file name so the import would read
import './course.js'
instead of import './course'
Ref: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/import
let's write it this way: YEAR(anySqlDate)
and MONTH(anySqlDate)
. Try it with YEAR(GETDATE())
for example.
I've extracted the relevant bits here. This is a 'no frills' tabular pager, so sorting or filtering is not included. Feel free to change/add as needed:
//your data source may be different. the following line is _x000D_
//just for demonstration purposes only_x000D_
var modelData = [{_x000D_
text: 'Test1'_x000D_
}, {_x000D_
text: 'Test2'_x000D_
}, {_x000D_
text: 'Test3'_x000D_
}];_x000D_
_x000D_
(function(util) {_x000D_
_x000D_
util.PAGE_SIZE = 10;_x000D_
_x000D_
util.range = function(start, end) {_x000D_
var rng = [];_x000D_
_x000D_
if (!end) {_x000D_
end = start;_x000D_
start = 0;_x000D_
}_x000D_
_x000D_
for (var i = start; i < end; i++)_x000D_
rng.push(i);_x000D_
_x000D_
return rng;_x000D_
};_x000D_
_x000D_
util.Pager = function(data) {_x000D_
var self = this,_x000D_
_size = util.PAGE_SIZE;;_x000D_
_x000D_
self.current = 0;_x000D_
_x000D_
self.content = function(index) {_x000D_
var start = index * self.size,_x000D_
end = (index * self.size + self.size) > data.length ? data.length : (index * self.size + self.size);_x000D_
_x000D_
return data.slice(start, end);_x000D_
};_x000D_
_x000D_
self.next = function() {_x000D_
if (!self.canPage('Next')) return;_x000D_
self.current++;_x000D_
};_x000D_
_x000D_
self.prev = function() {_x000D_
if (!self.canPage('Prev')) return;_x000D_
self.current--;_x000D_
};_x000D_
_x000D_
self.canPage = function(dir) {_x000D_
if (dir === 'Next') return self.current < self.count - 1;_x000D_
if (dir === 'Prev') return self.current > 0;_x000D_
return false;_x000D_
};_x000D_
_x000D_
self.list = function() {_x000D_
var start, end;_x000D_
start = self.current < 5 ? 0 : self.current - 5;_x000D_
end = self.count - self.current < 5 ? self.count : self.current + 5;_x000D_
return Util.range(start, end);_x000D_
};_x000D_
_x000D_
Object.defineProperty(self, 'size', {_x000D_
configurable: false,_x000D_
enumerable: false,_x000D_
get: function() {_x000D_
return _size;_x000D_
},_x000D_
set: function(val) {_x000D_
_size = val || _size;_x000D_
}_x000D_
});_x000D_
_x000D_
Object.defineProperty(self, 'count', {_x000D_
configurable: false,_x000D_
enumerable: false,_x000D_
get: function() {_x000D_
return Math.ceil(data.length / self.size);_x000D_
}_x000D_
});_x000D_
};_x000D_
_x000D_
})(window.Util = window.Util || {});_x000D_
_x000D_
(function(ns) {_x000D_
ns.SampleController = function($scope, $window) {_x000D_
$scope.ModelData = modelData;_x000D_
//instantiate pager with array (i.e. our model)_x000D_
$scope.pages = new $window.Util.Pager($scope.ModelData);_x000D_
};_x000D_
})(window.Controllers = window.Controllers || {});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>_x000D_
<table ng-controller="Controllers.SampleController">_x000D_
<thead>_x000D_
<tr>_x000D_
<th>_x000D_
Col1_x000D_
</th>_x000D_
</tr>_x000D_
</thead>_x000D_
<tbody>_x000D_
<tr ng-repeat="item in pages.content(pages.current)" title="{{item.text}}">_x000D_
<td ng-bind-template="{{item.text}}"></td>_x000D_
</tr>_x000D_
</tbody>_x000D_
<tfoot>_x000D_
<tr>_x000D_
<td colspan="4">_x000D_
<a href="#" ng-click="pages.prev()">«</a>_x000D_
<a href="#" ng-repeat="n in pages.list()" ng-click="pages.current = n" style="margin: 0 2px;">{{n + 1}}</a>_x000D_
<a href="#" ng-click="pages.next()">»</a>_x000D_
</td>_x000D_
</tr>_x000D_
</tfoot>_x000D_
</table>
_x000D_
One thing to keep in mind is that Javascript runs on the client, and not on the server. You can't really "load a file" from the server in Javascript. What happens is that Javascript sends a request to the server, and the server sends back the contents of the requested file. How does Javascript receive the contents? That's what the callback function is for. In Edward's case, that is
client.onreadystatechange = function() {
and in danb's case, it is
function(data) {
This function is called whenever the data happen to arrive. The jQuery version implicitly uses Ajax, it just makes the coding easier by encapsulating that code in the library.
I find very useful to understand how to organize code in Golang this chapter http://www.golang-book.com/11 of the book written by Caleb Doxsey
You might have output (maybe error/debug output) that precedes your call to
header("Content-type: text/xml");
Therefore, the content being delivered to the browser is not "xml"... that's what the error message is trying to tell you (at least that was the case for me and I had the same error message as you've described).
By default the last expression of a function will be returned.
In your example there is another expression after the point, where you want your return value.
If you want to return anything prior to your last expression, you still have to use return
.
You could modify your example like this, to return a Boolean
from the first part
def balanceMain(elem: List[Char]): Boolean = {
if (elem.isEmpty) {
// == is a Boolean resulting function as well, so your can write it this way
count == 0
} else {
// keep the rest in this block, the last value will be returned as well
if (elem.head == "(") {
balanceMain(elem.tail, open, count + 1)
}
// some more statements
...
// just don't forget your Boolean in the end
someBoolExpression
}
}
You can use varargs for optional parameters:
public class Booyah {
public static void main(String[] args) {
woohoo(1);
woohoo(2, 3);
}
static void woohoo(int required, Integer... optional) {
Integer lala;
if (optional.length == 1) {
lala = optional[0];
} else {
lala = 2;
}
System.out.println(required + lala);
}
}
Also it's important to note the use of Integer
over int
. Integer
is a wrapper around the primitive int
, which allows one to make comparisons with null
as necessary.
Following steps helped me to fix this issue, Solution 1:
You can also set git config http.postBuffer 524288000 to increase the network buffer
Solution 2:
Sometimes it happens when you are cloning your repo using VPN and it fails to verify the SSL
Try this out it may help:
git config http.sslVerify "false"
Those are different APIs to access a MySQL backend
So it depends on what kind of code you want to produce. If you prefer object-oriented layers or plain functions...
My advice would be
Also my feeling, the mysql API would probably being deleted in future releases of PHP
.
STEP 1: Go to Firebase Console
STEP 2: Select your Project
STEP 3: Click on Settings icon and select Project Settings
STEP 4: Select CLOUD MESSAGING tab
The R Language Definition is handy for answering these types of questions:
R has three basic indexing operators, with syntax displayed by the following examples
x[i] x[i, j] x[[i]] x[[i, j]] x$a x$"a"For vectors and matrices the
[[
forms are rarely used, although they have some slight semantic differences from the[
form (e.g. it drops any names or dimnames attribute, and that partial matching is used for character indices). When indexing multi-dimensional structures with a single index,x[[i]]
orx[i]
will return thei
th sequential element ofx
.For lists, one generally uses
[[
to select any single element, whereas[
returns a list of the selected elements.The
[[
form allows only a single element to be selected using integer or character indices, whereas[
allows indexing by vectors. Note though that for a list, the index can be a vector and each element of the vector is applied in turn to the list, the selected component, the selected component of that component, and so on. The result is still a single element.
OP's problem was related with HTML coding. But if you are using plain text, please use "\n" and not "\r\n".
My personal use case: using mailx mailer, simply replacing "\r\n" into "\n" fixed my issue, related with wrong automatic Content-Type setting.
Wrong header:
User-Agent: Heirloom mailx 12.4 7/29/08
MIME-Version: 1.0
Content-Type: application/octet-stream
Content-Transfer-Encoding: base64
Correct header:
User-Agent: Heirloom mailx 12.4 7/29/08
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
I'm not saying that "application/octet-stream" and "base64" are always wrong/unwanted, but they where in my case.
fact(5) = 5* fact(4) = 5 * (4 * fact(3))= 5 * 4 * (3 *fact(2))= 5 * 4 * 3 * 2 * (fact(1))
As we can see above, no fact(x) is repeated so factorial has non overlapping problems.
fib(5) = fib(4) + fib(3) = (fib(3)+fib(2)) + (fib(2)+fib(1))
As we can see above, fib(4) and fib(3) both use fib(2). similarly so many fib(x) gets repeated. that's why Fibonacci has overlapping sub-problems.
This is one of the simplest ways to sort record by Date:
SELECT `Article_Id` , `Title` , `Source_Link` , `Content` , `Source` , `Reg_Date`, UNIX_TIMESTAMP( `Reg_Date` ) AS DATE
FROM article
ORDER BY DATE DESC
How about calling a function from within your callback instead of returning a value in sync_call()?
function sync_call(input) {
var value;
// Assume the async call always succeed
async_call(input, function(result) {
value = result;
use_value(value);
} );
}
dataset <- matrix(sample(c(NA, 1:5), 25, replace = TRUE), 5);
data <- as.data.frame(dataset)
[,1] [,2] [,3] [,4] [,5] [1,] 2 3 5 5 4 [2,] 2 4 3 2 4 [3,] 2 NA NA NA 2 [4,] 2 3 NA 5 5 [5,] 2 3 2 2 3
data[is.na(data)] <- 0
Another implementation, using Array.reduce (I think it’s the only one missing!):
const splitArray = (arr, size) =>
{
if (size === 0) {
return [];
}
return arr.reduce((split, element, index) => {
index % size === 0 ? split.push([element]) : split[Math.floor(index / size)].push(element);
return split;
}, []);
};
As many solutions above, this one’s non-destructive. Returning an empty array when the size is 0 is just a convention. If the if
block is omitted you get an error, which might be what you want.
d5d "cuts" five lines
I usually just throw the number in the middle like:
d7l = delete 7 letters
IMPORTANT:
Please notice this solution is from 2015 might be too old and deprecated.
None of the above worked for me so I made a tutorial and wrote it for myself since I lost many hours trying to implement this. Hope this helps someone:
1) Add to your AndroidManifest.xml
file the ACCESS_COARSE_LOCATION
& ACCESS_FINE_LOCATION
:
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.appname" >
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<application...
2) Go to app/build.gradle
file and add the following dependency (make sure to use the latest available version):
dependencies {
//IMPORTANT: make sure to use the newest version. 11.0.1 is old AF
compile 'com.google.android.gms:play-services-location:11.0.1
}
3) In your activity implement the following:
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks;
import com.google.android.gms.common.api.GoogleApiClient.OnConnectionFailedListener;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.maps.GoogleMap;
public class HomeActivity extends AppCompatActivity implements
ConnectionCallbacks,
OnConnectionFailedListener,
LocationListener {
//Define a request code to send to Google Play services
private final static int CONNECTION_FAILURE_RESOLUTION_REQUEST = 9000;
private GoogleApiClient mGoogleApiClient;
private LocationRequest mLocationRequest;
private double currentLatitude;
private double currentLongitude;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
mGoogleApiClient = new GoogleApiClient.Builder(this)
// The next two lines tell the new client that “this” current class will handle connection stuff
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
//fourth line adds the LocationServices API endpoint from GooglePlayServices
.addApi(LocationServices.API)
.build();
// Create the LocationRequest object
mLocationRequest = LocationRequest.create()
.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
.setInterval(10 * 1000) // 10 seconds, in milliseconds
.setFastestInterval(1 * 1000); // 1 second, in milliseconds
}
@Override
protected void onResume() {
super.onResume();
//Now lets connect to the API
mGoogleApiClient.connect();
}
@Override
protected void onPause() {
super.onPause();
Log.v(this.getClass().getSimpleName(), "onPause()");
//Disconnect from API onPause()
if (mGoogleApiClient.isConnected()) {
LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
mGoogleApiClient.disconnect();
}
}
/**
* If connected get lat and long
*
*/
@Override
public void onConnected(Bundle bundle) {
Location location = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
if (location == null) {
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
} else {
//If everything went fine lets get latitude and longitude
currentLatitude = location.getLatitude();
currentLongitude = location.getLongitude();
Toast.makeText(this, currentLatitude + " WORKS " + currentLongitude + "", Toast.LENGTH_LONG).show();
}
}
@Override
public void onConnectionSuspended(int i) {}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
/*
* Google Play services can resolve some errors it detects.
* If the error has a resolution, try sending an Intent to
* start a Google Play services activity that can resolve
* error.
*/
if (connectionResult.hasResolution()) {
try {
// Start an Activity that tries to resolve the error
connectionResult.startResolutionForResult(this, CONNECTION_FAILURE_RESOLUTION_REQUEST);
/*
* Thrown if Google Play services canceled the original
* PendingIntent
*/
} catch (IntentSender.SendIntentException e) {
// Log the error
e.printStackTrace();
}
} else {
/*
* If no resolution is available, display a dialog to the
* user with the error.
*/
Log.e("Error", "Location services connection failed with code " + connectionResult.getErrorCode());
}
}
/**
* If locationChanges change lat and long
*
*
* @param location
*/
@Override
public void onLocationChanged(Location location) {
currentLatitude = location.getLatitude();
currentLongitude = location.getLongitude();
Toast.makeText(this, currentLatitude + " WORKS " + currentLongitude + "", Toast.LENGTH_LONG).show();
}
}
The Beginner’s Guide to Location in Android
Note: This doesn't seem to work in the emulator but works just fine on a device
In Python 3.9, a new removeprefix
method is being added:
>>> 'TestHook'.removeprefix('Test')
'Hook'
>>> 'BaseTestCase'.removeprefix('Test')
'BaseTestCase'
All you have to do is the following:
git checkout <notMainDev>
git diff --name-only <mainDev>
This will show you only the filenames that are different between the two branches.
This works fine for me:
while True:
answer = input('Do you want to continue?:')
if answer.lower().startswith("y"):
print("ok, carry on then")
elif answer.lower().startswith("n"):
print("sayonara, Robocop")
exit()
edit: use input
in python 3.2 instead of raw_input
Create interfaces:
BackButtonHandlerInterface
public interface BackButtonHandlerInterface {
void addBackClickListener (OnBackClickListener onBackClickListener);
void removeBackClickListener (OnBackClickListener onBackClickListener);
}
OnBackClickListener
public interface OnBackClickListener {
boolean onBackClick();
}
In Activity:
public class MainActivity extends AppCompatActivity implements BackButtonHandlerInterface {
private ArrayList<WeakReference<OnBackClickListener>> backClickListenersList = new ArrayList<>();
@Override
public void addBackClickListener(OnBackClickListener onBackClickListener) {
backClickListenersList.add(new WeakReference<>(onBackClickListener));
}
@Override
public void removeBackClickListener(OnBackClickListener onBackClickListener) {
for (Iterator<WeakReference<OnBackClickListener>> iterator = backClickListenersList.iterator();
iterator.hasNext();){
WeakReference<OnBackClickListener> weakRef = iterator.next();
if (weakRef.get() == onBackClickListener){
iterator.remove();
}
}
}
@Override
public void onBackPressed() {
if(!fragmentsBackKeyIntercept()){
super.onBackPressed();
}
}
private boolean fragmentsBackKeyIntercept() {
boolean isIntercept = false;
for (WeakReference<OnBackClickListener> weakRef : backClickListenersList) {
OnBackClickListener onBackClickListener = weakRef.get();
if (onBackClickListener != null) {
boolean isFragmIntercept = onBackClickListener.onBackClick();
if (!isIntercept) isIntercept = isFragmIntercept;
}
}
return isIntercept;
}
}
In Fragment:
public class MyFragment extends Fragment implements OnBackClickListener{
private BackButtonHandlerInterface backButtonHandler;
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
backButtonHandler = (BackButtonHandlerInterface) activity;
backButtonHandler.addBackClickListener(this);
}
@Override
public void onDetach() {
super.onDetach();
backButtonHandler.removeBackClickListener(this);
backButtonHandler = null;
}
@Override
public boolean onBackClick() {
//This method handle onBackPressed()! return true or false
return false;
}
}
Provide custom back navigation
class MyFragment : Fragment() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
// This callback will only be called when MyFragment is at least Started.
val callback = requireActivity().onBackPressedDispatcher.addCallback(this) {
// Handle the back button event
}
// The callback can be enabled or disabled here or in the lambda
}
}
According the documentaion hide / toggle should work. But it don't.
Here is how I did it
$('#modal-id').modal('toggle'); //Hide the modal dialog
$('.modal-backdrop').remove(); //Hide the backdrop
$("body").removeClass( "modal-open" ); //Put scroll back on the Body
DECLARE @dd VARCHAR(200) = 'Net Operating Loss - 2007';
SELECT SUBSTRING(@dd, 1, CHARINDEX('-', @dd) -1) F1,
SUBSTRING(@dd, CHARINDEX('-', @dd) +1, LEN(@dd)) F2
'always|withText' will work if there is sufficient room, otherwise it will only place icon. You can test it on your phone with rotation.
<item android:id="@id/menu_item"
android:title="text"
android:icon="@drawable/drawable_resource_name"
android:showAsAction="always|withText" />
Just note that maybe your Entity have primary key but your table in database doesn't have primary key.
Since the advent of p2, you should be using the dropins directory instead.
To be completely clear create "plugins" under "/dropins" and make sure to restart eclipse with the "-clean" option.
my issue with ANR , after much work i found out that a thread was calling a resource that did not exist in the layout, instead of returning an exception , i got ANR ...
In my case, there where a subfolder in a project that was a project folder it self:
file system:
solution
Then i had to remove the subfolder "tests" from the "webapi" project.
Couldn't you just call the following replaceing the {zipcode} with the zip code or city and state http://maps.googleapis.com/maps/api/geocode/json?address={zipcode}
Here is a link with a How To Geocode using JavaScript: Geocode walk-thru. If you need the specific lat/lng numbers call geometry.location.lat() or geometry.location.lng() (API for google.maps.LatLng class)
EXAMPLE to get lat/lng:
var lat = '';
var lng = '';
var address = {zipcode} or {city and state};
geocoder.geocode( { 'address': address}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
lat = results[0].geometry.location.lat();
lng = results[0].geometry.location.lng();
});
} else {
alert("Geocode was not successful for the following reason: " + status);
}
});
alert('Latitude: ' + lat + ' Logitude: ' + lng);
Future Readers
Check each of the following:
import { CommonModule } from '@angular/common';
ng serve
)You can try to connect to one of well-known Web sites on a port that may not be available from outside - 200 for example. Most of firewalls work in DROP mode and it will simulate a timeout for you.
The first attempt was pretty close. This variation should work:
echo "hello world" | { test=$(< /dev/stdin); echo "test=$test"; };
and the output is:
test=hello world
You need braces after the pipe to enclose the assignment to test and the echo.
Without the braces, the assignment to test (after the pipe) is in one shell, and the echo "test=$test" is in a separate shell which doesn't know about that assignment. That's why you were getting "test=" in the output instead of "test=hello world".
You probably don't have the six
Python module installed. You can find it on pypi.
To install it:
$ easy_install six
(if you have pip
installed, use pip install six
instead)
Here is a method you can use:
public static void RemoveAllByValue<K, V>(this Dictionary<K, V> dictionary, V value)
{
foreach (var key in dictionary.Where(
kvp => EqualityComparer<V>.Default.Equals(kvp.Value, value)).
Select(x => x.Key).ToArray())
dictionary.Remove(key);
}
You can store virtually any object using a Django Pickle Field, ala this snippet:
For Spring 2
val hostName = InetAddress.getLocalHost().hostName
var webServerPort: Int = 0
@Configuration
class ApplicationListenerWebServerInitialized : ApplicationListener<WebServerInitializedEvent> {
override fun onApplicationEvent(event: WebServerInitializedEvent) {
webServerPort = event.webServer.port
}
}
then you can use also webServerPort
from anywhere...
This may be old, but I may as well write what I've learned down. So anyway I did it this way.
---------->
Before you start, make sure the Apache rewrites module is enabled and then follow the steps below.
1) Log-in to your Magento administration area then go to System > Configuration > Web.
2) Navigate to the Unsecure and Secure tabs. Make sure the Unsecured and Secure - Base Url options have your domain name within it, and do not leave the forward slash off at the end of the URL. Example: http://www.yourdomain.co.uk/
3) While still on the Web page, navigate to Search Engine Optimisation tab and select YES underneath the Use Web Server Rewrites option.
4) Navigate to the Secure tab again (if not already on it) and select Yes on the Use Secure URLs in Front-End option.
5) Now go to the root of your Magento website folder and use this code for your .htaccess:
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
Save the .htaccess and replace the original file. (PLEASE MAKE SURE TO BACKUP YOUR ORIGINAL .htaccess FILE BEFORE MESSING WITH IT!!!)
6) Now go to System > Cache Management and select all fields and make sure the Actions dropdown is set on Refresh, then submit. (This will of-course refresh the Cache.)
---------->
If this did not work please follow these extra steps.
7) Go to System > Configuration > web again. This time look for the Current Configuration Scope and select your website from the dropdown menu. (This is of course, it is set to Default Config)
8) Make sure the Unsecure and Secure fields contain the same domain as the previous Default Config file.
9) Navigate to the Search Engines Optimisation tab and select Yes underneath the Use Web Server Rewrites section.
10) Once the URLs are the same, and the rewrite is enabled save that page, then go back and make sure they are all checked as default, then save again if needed.
11) Repeat step 6.
Now your index.php problem should be fixed and all should be well!!!
I hope this helps, and good luck.
Try this
<div style="background: linear-gradient( rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7) ), url(/image.png);background-repeat: no-repeat; background-position: center;"> </div>
Using the TextBox.ReadOnly
property
TextBox.ReadOnly = true;
For a Non-Grey background you can change the TextBox.BackColor
property to SystemColors.Window
Color
textBox.BackColor = System.Drawing.SystemColors.Window;
When this property is set to true, the contents of the control cannot be changed by the user at runtime. With this property set to true, you can still set the value of the Text property in code. You can use this feature instead of disabling the control with the Enabled property to allow the contents to be copied and ToolTips to be shown.
Minor difference to accepted answer, but I was having a lot of difficulty squashing and finally got it.
$ git rebase -i HEAD~4
esc --> :wq
Push to the remote using:
$ git push origin branch-name --force
For anyone want to replace your script.
update dbo.[TABLE_NAME] set COLUMN_NAME= replace(COLUMN_NAME, 'old_value', 'new_value') where COLUMN_NAME like %CONDITION%
Use Any()
instead of Contains()
:
buildingStatus.Any(item => item.GetCharValue() == v.Status)
below formula worked form me in MS EXEL
=TEXT(CELL_VALUE/24/60/60/1000 + 25569,"YYYY-MM-DD HH:MM")
CELL_VALUE is timestamp in milliseconds
here is explanation for text function.
Python is upset because you are attempting to assign a value to something that can't be assigned a value.
((t[1])/length) * t[1] += string
When you use an assignment operator, you assign the value of what is on the right to the variable or element on the left. In your case, there is no variable or element on the left, but instead an interpreted value: you are trying to assign a value to something that isn't a "container".
Based on what you've written, you're just misunderstanding how this operator works. Just switch your operands, like so.
string += str(((t[1])/length) * t[1])
Note that I've wrapped the assigned value in str
in order to convert it into a str
so that it is compatible with the string
variable it is being assigned to. (Numbers and strings can't be added together.)
With Animation in Swift
scrollView.setContentOffset(CGPointMake(x, y), animated: true)
In XSLT the same <xsl:variable>
can be declared only once and can be given a value only at its declaration. If more than one variables are declared at the same time, they are in fact different variables and have different scope.
Therefore, the way to achieve the wanted conditional setting of the variable and producing its value is the following:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes"/>
<xsl:template match="class">
<xsl:variable name="subexists">
<xsl:choose>
<xsl:when test="joined-subclass">true</xsl:when>
<xsl:otherwise>false</xsl:otherwise>
</xsl:choose>
</xsl:variable>
subexists: <xsl:text/>
<xsl:value-of select="$subexists" />
</xsl:template>
</xsl:stylesheet>
When the above transformation is applied on the following XML document:
<class>
<joined-subclass/>
</class>
the wanted result is produced:
subexists: true
Yes, should try reinstall mysql, but use the --reinstall
flag to force a package reconfiguration. So the operating system service configuration is not skipped:
sudo apt --reinstall install mysql-server
"net send" is a command using a background service called "messenger". This service has been removed from Windows 7. ie You cannot use 'net send' on Vista nor Win7 / Win8.
Pity though , I loved using it.
There is alternatives, but that requires you to download and install software on each pc you want to use, this software runs as background services, and i would advise one to be very very very very careful of using these kind of software as they can potentially cause seriously damage one's system or impair the systems securities.
winsent innocenti / winsent messenger
****This command is risky because of what is stated above***
Well this is because ArrayList
resulting from Arrays.asList()
is not of the type java.util.ArrayList
. Arrays.asList()
creates an ArrayList
of type java.util.Arrays$ArrayList
which does not extend java.util.ArrayList
but only extends java.util.AbstractList
For posterity, I'd like to note that I ended up choosing Raphael, because of the clean API and "free" IE support, and also because the active development looks promising (event support was just added in 0.7, for instance). However, I'll leave the question unanswered, and I'd still be interested to hear about others' experiences using Javascript + SVG libraries.
Sorry there's no simple method call that can do it. All you'd need to do though is create a map and count frequency with it.
HashMap<String,int> frequencymap = new HashMap<String,int>();
foreach(String a in animals) {
if(frequencymap.containsKey(a)) {
frequencymap.put(a, frequencymap.get(a)+1);
}
else{ frequencymap.put(a, 1); }
}
"N/A"
is not an integer. It must throw NumberFormatException
if you try to parse it to an integer.
Check before parsing or handle Exception
properly.
Exception Handling
try{
int i = Integer.parseInt(input);
} catch(NumberFormatException ex){ // handle your exception
...
}
or - Integer pattern matching -
String input=...;
String pattern ="-?\\d+";
if(input.matches("-?\\d+")){ // any positive or negetive integer or not!
...
}
After struggling for a while with badly formatted attachments, this is the code I used:
$email = new PHPMailer();
$email->From = '[email protected]';
$email->FromName = 'FromName';
$email->Subject = 'Subject';
$email->Body = 'Body';
$email->AddAddress( '[email protected]' );
$email->AddAttachment( "/path/to/filename.ext" , "filename.ext", 'base64', 'application/octet-stream' );
$email->Send();
The other answers are great and contain more detail if you want/need them.
In addition to those, I would like to add a TL;DR:
@RunWith(MockitoJUnitRunner.class)
@Rule public MockitoRule rule = MockitoJUnit.rule();
@Before public void initMocks() {
MockitoAnnotations.initMocks(this);
}
X x = mock(X.class)
(1) and (2) and (3) are mutually exclusive.
(4) can be used in combination with the others.
Actually I use _ method names when I need to differ between parent and child class names. I've read some codes that used this way of creating parent-child classes. As an example I can provide this code:
class ThreadableMixin:
def start_worker(self):
threading.Thread(target=self.worker).start()
def worker(self):
try:
self._worker()
except tornado.web.HTTPError, e:
self.set_status(e.status_code)
except:
logging.error("_worker problem", exc_info=True)
self.set_status(500)
tornado.ioloop.IOLoop.instance().add_callback(self.async_callback(self.results))
...
and the child that have a _worker method
class Handler(tornado.web.RequestHandler, ThreadableMixin):
def _worker(self):
self.res = self.render_string("template.html",
title = _("Title"),
data = self.application.db.query("select ... where object_id=%s", self.object_id)
)
...
To display the item number on the repeater you can use the Container.ItemIndex
property.
<asp:repeater id="rptRepeater" runat="server">
<itemtemplate>
Item <%# Container.ItemIndex + 1 %>| <%# Eval("Column1") %>
</itemtemplate>
<separatortemplate>
<br />
</separatortemplate>
</asp:repeater>
first I had to delete my registry by using npm config delete registry
and register new value using npm config set registry "http://registry.npmjs.org"
There is no need for typedef in Java. Everything is an Object except for the primitives. There are no pointers, only references. The scenarios where you normally would use typedefs are instances in which you create objects instead.
When to use LIBXML_NOCDATA
?
I add the issue when transforming XML to JSON.
$xml = simplexml_load_string("<foo><content><![CDATA[Hello, world!]]></content></foo>");
echo json_encode($xml, true);
/* prints
{
"content": {}
}
*/
When accessing the SimpleXMLElement object, It gets the CDATA :
$xml = simplexml_load_string("<foo><content><![CDATA[Hello, world!]]></content></foo>");
echo $xml->content;
/* prints
Hello, world!
*/
I makes sense to use LIBXML_NOCDATA
because json_encode
don't access the SimpleXMLElement to trigger the string casting feature, I'm guessing a __toString()
equivalent.
$xml = simplexml_load_string("<foo><content><![CDATA[Hello, world!]]></content></foo>", null, LIBXML_NOCDATA);
echo json_encode($xml);
/*
{
"content": "Hello, world!"
}
*/
For ng9 upgraders:
npm i -g core-js@^3
..then:
npm cache clean -f
..followed by:
npm i
Take a Look at this Bundle for Laravel that I Made Recently !
src/googlemap.php
Pls Read the readme file first and don't forget to pass different ID if you want to have multiple Maps in one page
This arstechnica article describes the basic steps:
Start by visiting the program portal and make sure that your developer certificate is up to date. It expires every six months and, if you haven't requested that a new one be issued, you cannot submit software to App Store. For most people experiencing the "pink upload of doom," though, their certificates are already valid. What next?
Open your Xcode project and check that you've set the active SDK to one of the device choices, like Device - 2.2. Accidentally leaving the build settings to Simulator can be a big reason for the pink rejection. And that happens more often than many developers would care to admit.
Next, make sure that you've chosen a build configuration that uses your distribution (not your developer) certificate. Check this by double-clicking on your target in the Groups & Files column on the left of the project window. The Target Info window will open. Click the Build tab and review your Code Signing Identity. It should be iPhone Distribution: followed by your name or company name.
You may also want to confirm your application identifier in the Properties tab. Most likely, you'll have set the identifier properly when debugging with your developer certificate, but it never hurts to check.
The top-left of your project window also confirms your settings and configuration. It should read something like "Device - 2.2 | Distribution". This shows you the active SDK and configuration.
If your settings are correct but you still aren't getting that upload finished properly, clean your builds. Choose Build > Clean (Command-Shift-K) and click Clean. Alternatively, you can manually trash the build folder in your Project from Finder. Once you've cleaned, build again fresh.
If this does not produce an app that when zipped properly loads to iTunes Connect, quit and relaunch Xcode. I'm not kidding. This one simple trick solves more signing problems and "pink rejections of doom" than any other solution already mentioned.
import numpy as np
a = [2 ,3, 4]
np.square(a)
I think you want to take a look at jQuery since that Javascript library provides a lot of functionality you might want to use in this kind of cases. In your case you could write (or find one on the internet) a hasAttribute method, like so (not tested):
$.fn.hasAttribute = function(tagName, attrName){
var result = [];
$.each($(tagName), function(index, value) {
var attr = $(this).attr(attrName);
if (typeof attr !== 'undefined' && attr !== false)
result.push($(this));
});
return result;
}
If it is a list of parameters from existing SQL table, for example ID list from existing Table1, then you can try this:
select distinct ID
FROM Table1
where
ID in (1, 1, 1, 2, 5, 1, 6)
ORDER BY ID;
Or, if you need List of parameters as a SQL Table constant(variable), try this:
WITH Id_list AS (
select ID
FROM Table1
where
ID in (1, 1, 1, 2, 5, 1, 6)
)
SELECT distinct * FROM Id_list
ORDER BY ID;
<mvc:annotation-driven />
<mvc:default-servlet-handler />
<mvc:resources mapping="/resources/**" location="/resources/" />
<context:component-scan base-package="com.tridenthyundai.ains" />
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver" />
<bean id="messageSource"
class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<property name="basename" value="/WEB-INF/messages" />
</bean>
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/pages/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
getch () function returns two keycodes for arrow keys (and some other special keys), as mentioned in the comment by FatalError. It returns either 0 (0x00) or 224 (0xE0) first, and then returns a code identifying the key that was pressed.
For the arrow keys, it returns 224 first followed by 72 (up), 80 (down), 75 (left) and 77 (right). If the num-pad arrow keys (with NumLock off) are pressed, getch () returns 0 first instead of 224.
Please note that getch () is not standardized in any way, and these codes might vary from compiler to compiler. These codes are returned by MinGW and Visual C++ on Windows.
A handy program to see the action of getch () for various keys is:
#include <stdio.h>
#include <conio.h>
int main ()
{
int ch;
while ((ch = _getch()) != 27) /* 27 = Esc key */
{
printf("%d", ch);
if (ch == 0 || ch == 224)
printf (", %d", _getch ());
printf("\n");
}
printf("ESC %d\n", ch);
return (0);
}
This works for MinGW and Visual C++. These compilers use the name _getch () instead of getch () to indicate that it is a non-standard function.
So, you may do something like:
ch = _getch ();
if (ch == 0 || ch == 224)
{
switch (_getch ())
{
case 72:
/* Code for up arrow handling */
break;
case 80:
/* Code for down arrow handling */
break;
/* ... etc ... */
}
}
The selected answer is clever and tricky. Here's how I did it:
LoginActivity is the root activity of the task, set android:noHistory="true" to it in Manifest.xml; Say you want to logout from SettingsActivity, you can do it as below:
Intent i = new Intent(SettingsActivity.this, LoginActivity.class);
i.addFlags(IntentCompat.FLAG_ACTIVITY_CLEAR_TASK
| Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(i);
execl("/home/vlc",
"/home/vlc", "/home/my movies/the movie i want to see.mkv",
(char*) NULL);
You need to specify all arguments, included argv[0]
which isn't taken from the executable.
Also make sure the final NULL
gets cast to char*
.
Details are here: http://pubs.opengroup.org/onlinepubs/9699919799/functions/exec.html
Use translate:
import string
def clean(instr):
return instr.translate(None, string.punctuation + ' ')
Caveat: Only works on ascii strings.
Alternatively you can have your class implement the InitializingBean
interface to provide a callback function (afterPropertiesSet()
) which the ApplicationContext will invoke when the bean is constructed.
add this key key from dropdownlist in "info.plist" and voila you will no more see top bar that includes elements something like GSM,wifi icon etc.
Q) Code was working fine in Intellj but failing in command line.
Sol) Add dependencies of jersey as a direct dependency rather than a transient one.
Reasoning: Since, it was working fine with IntelliJ, dependencies are correctly configured.
Get required dependencies by one of the following:
mvn dependency:tree
Now, add those problematic jersey dependencies explicitly.
You can directly show image from web without downloading it. Please check the below function . It will show the images from the web into your image view.
public static Drawable LoadImageFromWebOperations(String url) {
try {
InputStream is = (InputStream) new URL(url).getContent();
Drawable d = Drawable.createFromStream(is, "src name");
return d;
} catch (Exception e) {
return null;
}
}
then set image to imageview using code in your activity.
You can also just redirect the standard error STDERR output to /dev/null
So just do:
mysql -u $user -p$password -e "statement" 2> /dev/null
try deleting c:\users\.AndroidStudioX.X folder. it will also remove your android studio settings and customization
Use urlencode()
rather than trying to implement your own. Be lazy.
Connect to DB using base user:
mysql -u base_user -pbase_user_pass
And execute CREATE DATABASE, CREATE USER and GRANT PRIVILEGES Statements.
Here's handy web wizard to help you with statements www.bugaco.com/helpers/create_database.html
Below command works , i tried this and got the current version as
/usr/bin/hive --version
Whenever user communicate with bot it send information like below:
$response = {
"update_id":640046715,
"message":{
"message_id":1665,
"from":{"id":108177xxxx,"is_bot":false,"first_name":"Suresh","last_name":"Kamrushi","language_code":"en"},
"chat":{"id":108xxxxxx,"first_name":"Suresh","last_name":"Kamrushi","type":"private"},
"date":1604381276,
"text":"1"
}
}
So you can access chat it like:
$update["message"]["chat"]["id"]
Assuming you are using PHP.
Based on Michaels answer this is the actual CSS code to use
.parent:hover .child
{
display: block;
-webkit-animation: fadeInFromNone 0.5s ease-out;
-moz-animation: fadeInFromNone 0.5s ease-out;
-o-animation: fadeInFromNone 0.5s ease-out;
animation: fadeInFromNone 0.5s ease-out;
}
@-webkit-keyframes fadeInFromNone {
0% {
display: none;
opacity: 0;
}
1% {
display: block;
opacity: 0;
}
100% {
display: block;
opacity: 1;
}
}
@-moz-keyframes fadeInFromNone {
0% {
display: none;
opacity: 0;
}
1% {
display: block;
opacity: 0;
}
100% {
display: block;
opacity: 1;
}
}
@-o-keyframes fadeInFromNone {
0% {
display: none;
opacity: 0;
}
1% {
display: block;
opacity: 0;
}
100% {
display: block;
opacity: 1;
}
}
@keyframes fadeInFromNone {
0% {
display: none;
opacity: 0;
}
1% {
display: block;
opacity: 0;
}
100% {
display: block;
opacity: 1;
}
}
I use both windows and linux, but the solution core.autocrlf true
didn't help me. I even got nothing changed after git checkout <filename>
.
So I use workaround to substitute git status
- gitstatus.sh
#!/bin/bash
git status | grep modified | cut -d' ' -f 4 | while read x; do
x1="$(git show HEAD:$x | md5sum | cut -d' ' -f 1 )"
x2="$(cat $x | md5sum | cut -d' ' -f 1 )"
if [ "$x1" != "$x2" ]; then
echo "$x NOT IDENTICAL"
fi
done
I just compare md5sum
of a file and its brother at repository.
Example output:
$ ./gitstatus.sh
application/script.php NOT IDENTICAL
application/storage/logs/laravel.log NOT IDENTICAL
In my experience using the 'switch' statement is the standard way to handle multiple possible states. Although I am surpirsed that you are passing in a transition value to the per-state processing. I thought the whole point of a state machine was that each state performed a single action. Then the next action/input determines which new state to transition into. So I would have expected each state processing function to immediately perform whatever is fixed for entering state and then afterwards decide if transition is needed to another state.
Start with:
find . -name '*.log.*.zip' -a -mtime +1
You may not need a regex, try:
find . -name '*.log.*-*-*.zip' -a -mtime +1
You will want the +1 in order to match 1, 2, 3 ...
Note that starting Python 3.8
, the standard library provides the math.comb
function to compute the binomial coefficient:
math.comb(n, k)
which is the number of ways to choose k items from n items without repetition n! / (k! (n - k)!)
:
import math
math.comb(10, 5) # 252
math.comb(10, 10) # 1
You can use:
SELECT IDENT_CURRENT('tablename')
to access the latest identity for a perticular table.
e.g. Considering following code:
INSERT INTO dbo.MyTable(columns....) VALUES(..........)
INSERT INTO dbo.YourTable(columns....) VALUES(..........)
SELECT IDENT_CURRENT('MyTable')
SELECT IDENT_CURRENT('YourTable')
This would yield to correct value for corresponding tables.
It returns the last IDENTITY
value produced in a table, regardless of the connection that created the value, and regardless of the scope of the statement that produced the value.
IDENT_CURRENT
is not limited by scope and session; it is limited to a specified table. IDENT_CURRENT
returns the identity value generated for a specific table in any session and any scope.
For .net core 2.1 console application, the following approaches worked for me:
1 - from CLI (after building the application and navigating to debug or release folders based on the build type specified):
dotnet appName.dll
2 - from Visual Studio
R.C solution and click publish
'Target location' -> 'configure' ->
'Deployment Mode' = 'Self-Contained'
'Target Runtime' = 'win-x64 or win-x86 depending on the OS'
References:
For an in depth explanation of all the deployment options available for .net core applications, checkout the following articles:
I found this method worked for me:
$thisproduct = "my_product_id";
$array=array("$product1", "$product2", "$product3", "$product4");
if (in_array($thisproduct,$array)) {
echo "Product found";
}
Yes you can start with the Wikipedia article explaining the Big O notation, which in a nutshell is a way of describing the "efficiency" (upper bound of complexity) of different type of algorithms. Or you can look at an earlier answer where this is explained in simple english
You could try
NumberUtils.isParsable(yourInput)
It is part of org/apache/commons/lang3/math/NumberUtils
and it checks whether the string can be parsed by Integer.parseInt(String)
, Long.parseLong(String)
, Float.parseFloat(String)
or Double.parseDouble(String)
.
See below:
Try:
var pathRegex = new Regex(@"\\bin(\\x86|\\x64)?\\(Debug|Release)$", RegexOptions.Compiled);
var directory = pathRegex.Replace(Directory.GetCurrentDirectory(), String.Empty);
This is solution different from the others does also take into account possible x86 or x64 build.
.service-small option {
font-size: 14px;
padding: 5px;
background: #5c5c5c;
}
I think it because you used .styled-select in start of the class code.
You're thinking too DOM, it's a hard as hell habit to break. Vue recommends you approach it data first.
It's kind of hard to tell in your exact situation but I'd probably use a v-for
and make an array of finds
to push to as I need more.
Here's how I'd set up my instance:
new Vue({
el: '#app',
data: {
finds: []
},
methods: {
addFind: function () {
this.finds.push({ value: '' });
}
}
});
And here's how I'd set up my template:
<div id="app">
<h1>Finds</h1>
<div v-for="(find, index) in finds">
<input v-model="find.value" :key="index">
</div>
<button @click="addFind">
New Find
</button>
</div>
Although, I'd try to use something besides an index
for the key
.
Here's a demo of the above: https://jsfiddle.net/crswll/24txy506/9/
See this other answer. Basically, you could have MSBuild.exe processes running in the background consuming resource files. If you have any pre or post build tasks that cause an MSBuild to be kicked off via command line, try adding the "/nr:false" flag to this command. But again, see the previous answer for more specific details.
Update your pip
first:
pip install --upgrade pip
for Python 3:
pip3 install --upgrade pip
Yes , A plugin is available named "combine" for notepad++.Link: .>> Combine Plugin for Notepad++
You can install it via plugin manager. Extra benifit of this plugin is: "You can maintain the sequence of files while merging, it's according to the sequence of opened files are opened (see tabs)".
Typically, arrays require constants to initialize their size. You could sweep over nvPairs once to get the length, then "dynamically" create an array using a variable for length like this.
InputProperty[] ip = (InputProperty[])Array.CreateInstance(typeof(InputProperty), length);
I wouldn't recommend it, though. Just stick with the
List<InputProperty> ip = ...
...
update.Items = ip.ToArray();
solution. It's not that much less performant, and way better looking.
try this :
mWebView.loadUrl(mWebView.getUrl().toString());
You could (but you shouldn't) use reflection for the job:
import java.lang.reflect.Field;
public class Outer {
public class Inner {
}
public static void main(String[] args) throws Exception {
// Create the inner instance
Inner inner = new Outer().new Inner();
// Get the implicit reference from the inner to the outer instance
// ... make it accessible, as it has default visibility
Field field = Inner.class.getDeclaredField("this$0");
field.setAccessible(true);
// Dereference and cast it
Outer outer = (Outer) field.get(inner);
System.out.println(outer);
}
}
Of course, the name of the implicit reference is utterly unreliable, so as I said, you shouldn't :-)
in angular-2 attribute syntax is
<div [attr.role]="myAriaRole">
Binds attribute role to the result of expression myAriaRole.
so can use like
[attr.role]="myAriaRole ? true: null"
If you remove the javascript:
prefix and remove the parts for the unknown ids like 'black_fade'
from your javascript code, this should work in firefox
Condensed example:
<html>
<head>
<script type="text/javascript">
function show_update_profile() {
document.getElementById('div_register').style.height= "500px";
document.getElementById('div_register').style.width= "500px";
document.getElementById('div_register').style.display='block';
return true;
}
</script>
<style>
/* just to show dimensions of div */
#div_register
{
background-color: #cfc;
}
</style>
</head>
<body>
<div id="main">
<input type="button" onclick="show_update_profile();" value="show"/>
</div>
<div id="div_register">
<table>
<tr>
<td>
welcome
</td>
</tr>
</table>
</div>
</body>
</html>
the trigger idea was smart, however I wanted to do it the jQuery way, so here is a small function which will allow you to keep chaining.
$.fn.resetForm = function() {
return this.each(function(){
this.reset();
});
}
Then just call it something like this
$('#divwithformin form').resetForm();
or
$('form').resetForm();
and of course you can still use it in the chain
$('form.register').resetForm().find('input[type="submit"]').attr('disabled','disabled')
Here is my global function for showing the form error messages.
function show_validation_erros(form_error_object) {
angular.forEach(form_error_object, function (objArrayFields, errorName) {
angular.forEach(objArrayFields, function (objArrayField, key) {
objArrayField.$setDirty();
});
});
};
And in my any controllers,
if ($scope.form_add_sale.$invalid) {
$scope.global.show_validation_erros($scope.form_add_sale.$error);
}
Datatable JS plugin is also one good alternate to accomedate search feature for html table
var table = $('#example').DataTable();
// #myInput is a <input type="text"> element
$('#myInput').on( 'keyup', function () {
table.search( this.value ).draw();
} );
https://datatables.net/examples/basic_init/zero_configuration.html
Update Nevermind, this doesn't work in IE or it's new brother, FF. Works on every other type of element as expected, but doesn't work on file inputs. A much better way to do this is to just create a file input and a label that links to it. Make the file input display none and boom, it works in IE9+ seamlessly.
By using pseudo elements positioned/sized against their container, we can get by with only one input file (no additional markup needed), and style as per usual.
<input type="file" class="foo">
.foo {
display: block;
position: relative;
width: 300px;
margin: auto;
cursor: pointer;
border: 0;
height: 60px;
border-radius: 5px;
outline: 0;
}
.foo:hover:after {
background: #5978f8;
}
.foo:after {
transition: 200ms all ease;
border-bottom: 3px solid rgba(0,0,0,.2);
background: #3c5ff4;
text-shadow: 0 2px 0 rgba(0,0,0,.2);
color: #fff;
font-size: 20px;
text-align: center;
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
display: block;
content: 'Upload Something';
line-height: 60px;
border-radius: 5px;
}
Enjoy guys!
Old Update
Turned this into a Stylus mixin. Should be easy enough for one of you cool SCSS cats to convert it.
file-button(button_width = 150px)
display block
position relative
margin auto
cursor pointer
border 0
height 0
width 0
outline none
&:after
position absolute
top 0
text-align center
display block
width button_width
left -(button_width / 2)
Usage:
<input type="file">
input[type="file"]
file-button(200px)
If you want to rename a branch while pointed to any branch, do:
git branch -m <oldname> <newname>
If you want to rename the current branch, you can do:
git branch -m <newname>
A way to remember this is -m
is for "move" (or mv
), which is how you rename files. Adding an alias could also help. To do so, run the following:
git config --global alias.rename 'branch -m'
If you are on Windows or another case-insensitive filesystem, and there are only capitalization changes in the name, you need to use -M
, otherwise, git will throw branch already exists error:
git branch -M <newname>
Template parameters can be either parameterized by type (typename T) or by value (int X).
The "traditional" C++ way of templating a piece of code is to use a functor - that is, the code is in an object, and the object thus gives the code unique type.
When working with traditional functions, this technique doesn't work well, because a change in type doesn't indicate a specific function - rather it specifies only the signature of many possible functions. So:
template<typename OP>
int do_op(int a, int b, OP op)
{
return op(a,b);
}
int add(int a, int b) { return a + b; }
...
int c = do_op(4,5,add);
Isn't equivalent to the functor case. In this example, do_op is instantiated for all function pointers whose signature is int X (int, int). The compiler would have to be pretty aggressive to fully inline this case. (I wouldn't rule it out though, as compiler optimization has gotten pretty advanced.)
One way to tell that this code doesn't quite do what we want is:
int (* func_ptr)(int, int) = add;
int c = do_op(4,5,func_ptr);
is still legal, and clearly this is not getting inlined. To get full inlining, we need to template by value, so the function is fully available in the template.
typedef int(*binary_int_op)(int, int); // signature for all valid template params
template<binary_int_op op>
int do_op(int a, int b)
{
return op(a,b);
}
int add(int a, int b) { return a + b; }
...
int c = do_op<add>(4,5);
In this case, each instantiated version of do_op is instantiated with a specific function already available. Thus we expect the code for do_op to look a lot like "return a + b". (Lisp programmers, stop your smirking!)
We can also confirm that this is closer to what we want because this:
int (* func_ptr)(int,int) = add;
int c = do_op<func_ptr>(4,5);
will fail to compile. GCC says: "error: 'func_ptr' cannot appear in a constant-expression. In other words, I can't fully expand do_op because you haven't given me enough info at compiler time to know what our op is.
So if the second example is really fully inlining our op, and the first is not, what good is the template? What is it doing? The answer is: type coercion. This riff on the first example will work:
template<typename OP>
int do_op(int a, int b, OP op) { return op(a,b); }
float fadd(float a, float b) { return a+b; }
...
int c = do_op(4,5,fadd);
That example will work! (I am not suggesting it is good C++ but...) What has happened is do_op has been templated around the signatures of the various functions, and each separate instantiation will write different type coercion code. So the instantiated code for do_op with fadd looks something like:
convert a and b from int to float.
call the function ptr op with float a and float b.
convert the result back to int and return it.
By comparison, our by-value case requires an exact match on the function arguments.
Another way of doing the same could be using the Gson Class
String filename = "path/to/file/abc.json";
Gson gson = new Gson();
JsonReader reader = new JsonReader(new FileReader(filename));
SampleClass data = gson.fromJson(reader, SampleClass.class);
This will give an object obtained after parsing the json string to work with.
You are right in what you write in the edit of your question.
After running DBCC CHECKIDENT('TableName', RESEED, 0)
:
- Newly created tables will start with identity 0
- Existing tables will continue with identity 1
The solution is in the script below, it's sort of a poor-mans-truncate :)
-- Remove all records from the Table
DELETE FROM TableName
-- Use sys.identity_columns to see if there was a last known identity value
-- for the Table. If there was one, the Table is not new and needs a reset
IF EXISTS (SELECT * FROM sys.identity_columns WHERE OBJECT_NAME(OBJECT_ID) = 'TableName' AND last_value IS NOT NULL)
DBCC CHECKIDENT (TableName, RESEED, 0);
Float them both the same way and add the margin of 40px. If you have 2 elements floating opposite ways you will have much less control and the containing element will determine how far apart they are.
#left{
float: left;
margin-right: 40px;
}
#right{
float: left;
}
Just found the answer, in this SO question (literally, inside the question, not any answer):
SELECT @@servername
returns servername\instance as far as this is not the default instance
SELECT @@servicename
returns instance name, even if this is the default (MSSQLSERVER)
There are some libraries around there:
Commons-BeanUtils: ConvertUtils -> Utility methods for converting String scalar values to objects of the specified Class, String arrays to arrays of the specified Class.
Commons-Lang: ArrayUtils -> Operations on arrays, primitive arrays (like int[]) and primitive wrapper arrays (like Integer[]).
Spring framework: Spring has an excellent support for PropertyEditors, that can also be used to transform Objects to/from Strings.
Dozer: Dozer is a powerful, yet simple Java Bean to Java Bean mapper that recursively copies data from one object to another. Typically, these Java Beans will be of different complex types.
ModelMapper: ModelMapper is an intelligent object mapping framework that automatically maps objects to each other. It uses a convention based approach to map objects while providing a simple refactoring safe API for handling specific use cases.
MapStruct: MapStruct is a compile-time code generator for bean mappings, resulting in fast (no usage of reflection or similar), dependency-less and type-safe mapping code at runtime.
Orika: Orika uses byte code generation to create fast mappers with minimal overhead.
Selma: Compile-time code-generator for mappings
JMapper: Bean mapper generation using Annotation, XML or API (seems dead, last updated 2 years ago)
Smooks: The Smooks JavaBean Cartridge allows you to create and populate Java objects from your message data (i.e. bind data to) (suggested by superfilin in comments). (No longer under active development)
Commons-Convert: Commons-Convert aims to provide a single library dedicated to the task of converting an object of one type to another. The first stage will focus on Object to String and String to Object conversions. (seems dead, last update 2010)
Transmorph: Transmorph is a free java library used to convert a Java object of one type into an object of another type (with another signature, possibly parameterized). (seems dead, last update 2013)
EZMorph: EZMorph is simple java library for transforming an Object to another Object. It supports transformations for primitives and Objects, for multidimensional arrays and transformations with DynaBeans (seems dead, last updated 2008)
Morph: Morph is a Java framework that eases the internal interoperability of an application. As information flows through an application, it undergoes multiple transformations. Morph provides a standard way to implement these transformations. (seems dead, last update 2008)
Lorentz: Lorentz is a generic object-to-object conversion framework. It provides a simple API to convert a Java objects of one type into an object of another type. (seems dead)
OTOM: With OTOM, you can copy any data from any object to any other object. The possibilities are endless. Welcome to "Autumn". (seems dead)
yum -y install zlib-devel openssl-devel cpio expat-devel gettext-devel gcc
wget http://git-core.googlecode.com/files/git-1.7.11.4.tar.gz
tar zxvf git-1.7.11.4.tar.gz
cd git-1.7.11.4
./configure
make
make install
you can:
itemsCart.Select(c=>c.Price).Sum();
To hit the db only once do:
var itemsInCart = (from o in db.OrderLineItems
where o.OrderId == currentOrder.OrderId
select new { o.OrderLineItemId, ..., ..., o.WishListItem.Price}
).ToList();
var sum = itemsCart.Select(c=>c.Price).Sum();
The extra round-trip saved is worth it :)
You can always do something shell-scripty like:
#!/usr/bin/node
var header = "Content-type: text/plain\n";
var hi = "Hello World from nodetest!";
console.log(header);
console.log(hi);
exit;
Gone through the already posted answers. Just thought it would be better if I add an answer with actual example.
Let' say you have 3 Django models which are related.
class M1(models.Model):
name = models.CharField(max_length=10)
class M2(models.Model):
name = models.CharField(max_length=10)
select_relation = models.ForeignKey(M1, on_delete=models.CASCADE)
prefetch_relation = models.ManyToManyField(to='M3')
class M3(models.Model):
name = models.CharField(max_length=10)
Here you can query M2
model and its relative M1
objects using select_relation
field and M3
objects using prefetch_relation
field.
However as we've mentioned M1
's relation from M2
is a ForeignKey
, it just returns only 1 record for any M2
object. Same thing applies for OneToOneField
as well.
But M3
's relation from M2
is a ManyToManyField
which might return any number of M1
objects.
Consider a case where you have 2 M2
objects m21
, m22
who have same 5 associated M3
objects with IDs 1,2,3,4,5
. When you fetch associated M3
objects for each of those M2
objects, if you use select related, this is how it's going to work.
Steps:
m21
object.M3
objects related to m21
object whose IDs are 1,2,3,4,5
.m22
object and all other M2
objects.As we have same 1,2,3,4,5
IDs for both m21
, m22
objects, if we use select_related option, it's going to query the DB twice for the same IDs which were already fetched.
Instead if you use prefetch_related, when you try to get M2
objects, it will make a note of all the IDs that your objects returned (Note: only the IDs) while querying M2
table and as last step, Django is going to make a query to M3
table with the set of all IDs that your M2
objects have returned. and join them to M2
objects using Python instead of database.
This way you're querying all the M3
objects only once which improves performance.
Angular introduced $watchGroup
in version 1.3 using which we can watch multiple variables, with a single $watchGroup
block
$watchGroup
takes array as first parameter in which we can include all of our variables to watch.
$scope.$watchGroup(['var1','var2'],function(newVals,oldVals){
console.log("new value of var1 = " newVals[0]);
console.log("new value of var2 = " newVals[1]);
console.log("old value of var1 = " oldVals[0]);
console.log("old value of var2 = " oldVals[1]);
});