var arr = ['a','b',1];
var results = arr.filter(function(item){
if(typeof item ==='string'){return item;}
});
The settings you need are "Local echo" and "Line editing" under the "Terminal" category on the left.
To get the characters to display on the screen as you enter them, set "Local echo" to "Force on".
To get the terminal to not send the command until you press Enter, set "Local line editing" to "Force on".
Explanation:
From the PuTTY User Manual (Found by clicking on the "Help" button in PuTTY):
4.3.8 ‘Local echo’
With local echo disabled, characters you type into the PuTTY window are not echoed in the window by PuTTY. They are simply sent to the server. (The server might choose to echo them back to you; this can't be controlled from the PuTTY control panel.)
Some types of session need local echo, and many do not. In its default mode, PuTTY will automatically attempt to deduce whether or not local echo is appropriate for the session you are working in. If you find it has made the wrong decision, you can use this configuration option to override its choice: you can force local echo to be turned on, or force it to be turned off, instead of relying on the automatic detection.
4.3.9 ‘Local line editing’ Normally, every character you type into the PuTTY window is sent immediately to the server the moment you type it.
If you enable local line editing, this changes. PuTTY will let you edit a whole line at a time locally, and the line will only be sent to the server when you press Return. If you make a mistake, you can use the Backspace key to correct it before you press Return, and the server will never see the mistake.
Since it is hard to edit a line locally without being able to see it, local line editing is mostly used in conjunction with local echo (section 4.3.8). This makes it ideal for use in raw mode or when connecting to MUDs or talkers. (Although some more advanced MUDs do occasionally turn local line editing on and turn local echo off, in order to accept a password from the user.)
Some types of session need local line editing, and many do not. In its default mode, PuTTY will automatically attempt to deduce whether or not local line editing is appropriate for the session you are working in. If you find it has made the wrong decision, you can use this configuration option to override its choice: you can force local line editing to be turned on, or force it to be turned off, instead of relying on the automatic detection.
Putty sometimes makes wrong choices when "Auto" is enabled for these options because it tries to detect the connection configuration. Applied to serial line, this is a bit trickier to do.
There is a maven plugin called properties-maven-plugin this one provides a goal set-system-properties
to set system variables. This is especially useful if you have a file containing all these properties. So you're able to read a property file and set them as system variable.
First of all, the .json
attribute is a property that delegates to the request.get_json()
method, which documents why you see None
here.
You need to set the request content type to application/json
for the .json
property and .get_json()
method (with no arguments) to work as either will produce None
otherwise. See the Flask Request
documentation:
This will contain the parsed JSON data if the mimetype indicates JSON (application/json, see
is_json()
), otherwise it will beNone
.
You can tell request.get_json()
to skip the content type requirement by passing it the force=True
keyword argument.
Note that if an exception is raised at this point (possibly resulting in a 400 Bad Request response), your JSON data is invalid. It is in some way malformed; you may want to check it with a JSON validator.
If you have the stats toolbox, then you can compute
Z = zscore(S);
You want to git rebase -i
to perform an interactive rebase.
If you're currently on your "commit 1", and the commit you want to merge, "commit 2", is the previous commit, you can run git rebase -i HEAD~2
, which will spawn an editor listing all the commits the rebase will traverse. You should see two lines starting with "pick". To proceed with squashing, change the first word of the second line from "pick" to "squash". Then save your file, and quit. Git will squash your first commit into your second last commit.
Note that this process rewrites the history of your branch. If you are pushing your code somewhere, you'll have to git push -f
and anybody sharing your code will have to jump through some hoops to pull your changes.
Note that if the two commits in question aren't the last two commits on the branch, the process will be slightly different.
It's the default formatting that Oracle provides. If you want leading zeros on output, you'll need to explicitly provide the format. Use:
SELECT TO_CHAR(0.56,'0.99') FROM DUAL;
or even:
SELECT TO_CHAR(.56,'0.99') FROM DUAL;
The same is true for trailing zeros:
SQL> SELECT TO_CHAR(.56,'0.990') val FROM DUAL;
VAL
------
0.560
The general form of the TO_CHAR conversion function is:
An answer with pathlib and without loading the whole list to memory:
from pathlib import Path
path = Path('.')
print(sum(1 for _ in path.glob('*'))) # Files and folders, not recursive
print(sum(1 for _ in path.glob('**/*'))) # Files and folders, recursive
print(sum(1 for x in path.glob('*') if x.is_file())) # Only files, not recursive
print(sum(1 for x in path.glob('**/*') if x.is_file())) # Only files, recursive
If you are using a Form Control
, you can get the same property as ActiveX
by using OLEFormat.Object
property of the Shape Object
. Better yet assign it in a variable declared as OptionButton to get the Intellisense kick in.
Dim opt As OptionButton
With Sheets("Sheet1") ' Try to be always explicit
Set opt = .Shapes("Option Button 1").OLEFormat.Object ' Form Control
Debug.Pring opt.Value ' returns 1 (true) or -4146 (false)
End With
But then again, you really don't need to know the value.
If you use Form Control
, you associate a Macro
or sub routine with it which is executed when it is selected. So you just need to set up a sub routine that identifies which button is clicked and then execute a corresponding action for it.
For example you have 2 Form Control
Option Buttons.
Sub CheckOptions()
Select Case Application.Caller
Case "Option Button 1"
' Action for option button 1
Case "Option Button 2"
' Action for option button 2
End Select
End Sub
In above code, you have only one sub routine assigned to both option buttons.
Then you test which called the sub routine by checking Application.Caller
.
This way, no need to check whether the option button value is true or false.
Referring to Volomike's answer, I would suggest replacing the line
nViewH -= 250;
with
nViewH = nViewH / window.devicePixelRatio;
It works exactly as I check on a HTC Magic (PixelRatio = 1) and a Samsung Galaxy Tab 7" (PixelRatio = 1.5).
A POST
, unlike a GET
, typically has relevant information in the body of the request. (A GET
should not have a body, so aside from cookies, the only place to pass info is in the URL.) Besides keeping the URL relatively cleaner, POST
also lets you send much more information (as URLs are limited in length, for all practical purposes), and lets you send just about any type of data (file upload forms, for example, can't use GET
-- they have to use POST
plus a special content type/encoding).
Aside from that, a POST
connotes that the request will change something, and shouldn't be redone willy-nilly. That's why you sometimes see your browser asking you if you want to resubmit form data when you hit the "back" button.
GET
, on the other hand, should be idempotent -- meaning you could do it a million times and the server will do the same thing (and show basically the same result) each and every time.
There is no difference between the two, one is just a shorthand for the second.
The v- prefix serves as a visual cue for identifying Vue-specific attributes in your templates. This is useful when you are using Vue.js to apply dynamic behavior to some existing markup, but can feel verbose for some frequently used directives. At the same time, the need for the v- prefix becomes less important when you are building an SPA where Vue.js manages every template.
<!-- full syntax -->
<a v-on:click="doSomething"></a>
<!-- shorthand -->
<a @click="doSomething"></a>
Source: official documentation.
This is on mysql workbench -- give the image file path:
INSERT INTO XX_SAMPLE(id,image) VALUES(3,'/home/ganesan-pc/Documents/aios_database/confe.jpg');
Having had a similar itch to scratch (altough only for some files of a given repository) this script proved to be really helpful: git-import
The short version is that it creates patch files of the given file or directory ($object
) from the existing repository:
cd old_repo
git format-patch --thread -o "$temp" --root -- "$object"
which then get applied to a new repository:
cd new_repo
git am "$temp"/*.patch
For details please look up:
This is what I went with. For those of you who want to optimize, check out https://stackoverflow.com/a/624379/991863.
public static string Hash(string stringToHash)
{
using (var sha1 = new SHA1Managed())
{
return BitConverter.ToString(sha1.ComputeHash(Encoding.UTF8.GetBytes(stringToHash)));
}
}
git reset --soft HEAD^
Will keep the modified changes in your working tree.
git reset --hard HEAD^
WILL THROW AWAY THE CHANGES YOU MADE !!!
Another one is OxyPlot, which is an open-source cross-platform (WPF, Silverlight, WinForms, Mono) .Net plotting library.
Google has this to say on transferring data between accounts.
http://support.google.com/accounts/bin/answer.py?hl=en&answer=63304
It lists certain types of data that CAN be transferred and certain types of data that CAN NOT be transferred. Unfortunately Google Play Apps falls into the NOT category.
It's conveniently titled: "Moving Product Data"
http://support.google.com/accounts/bin/answer.py?hl=en&answer=58582
You have to include the schema if isnt a public one
SELECT *
FROM <schema>."my_table"
Or you can change your default schema
SHOW search_path;
SET search_path TO my_schema;
Check your table schema here
SELECT *
FROM information_schema.columns
For example if a table is on the default schema public
both this will works ok
SELECT * FROM parroquias_region
SELECT * FROM public.parroquias_region
But sectors need specify the schema
SELECT * FROM map_update.sectores_point
Just wanted to re-emphasize that ++x is expected to be faster than x++, (especially if x is an object of some arbitrary type), so unless required for logical reasons, ++x should be used.
I am in a corporate setting and was attempting a simple git pull
after a recent change in password.
I got: remote: Invalid username or password.
Interestingly, the following did not work: git config --global --unset credential.helper
I use Windows-7, so, I went to control panel -> Credential Manager -> Generic Credentials.
From the credential manager list, delete the line items corresponding to git.
After the deletion, come back to gitbash and git pull should prompt the dialog for you to enter your credentials.
I tried a few times and finally solved the problem by uninstalling several times the VS2010. I think I hadn't uninstalled all the files and that's why it didn't work for the first time.
In the installation of VS2012, it is said that if you have VS2010 SP1 you can't work on the same project in both programs. It is recommended to have only one program.
Thanks!
The Law of Leaky Abstractions by Joel Spolsky
http://www.joelonsoftware.com/articles/LeakyAbstractions.html
This is not perfect but it does the job.
convert -density 1200 -resize 200x200 source.svg target.png
Basically it increases the DPI high enough (just use an educated/safe guess) that resizing is done with adequate quality. I was trying to find a proper solution to this but after a while decided this was good enough for my current need.
Note: Use 200x200! to force the given resolution
I realize that this is quite and old question, but I have a 'stupid' solution to a similar problem which maybe could help someone.
I experienced the same problem with a text box which shown as selected (by the Focus method in JQuery), but did not take the cursor in.
The fact is that I had the Debugger window open to see what is happening and THAT window was stealing the focus. The solution is banally simple: just close the Debugger and everything is fine...1 hour spent in testing!
Switch inherits CompoundButton
's attributes, so I would recommend the OnCheckedChangeListener
mySwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// do something, the isChecked will be
// true if the switch is in the On position
}
});
you can always use new stdClass()
. Example code:
$object = new stdClass();
$object->property = 'Here we go';
var_dump($object);
/*
outputs:
object(stdClass)#2 (1) {
["property"]=>
string(10) "Here we go"
}
*/
Also as of PHP 5.4 you can get same output with:
$object = (object) ['property' => 'Here we go'];
Set height or the width of the image to be %100.
There is more in Stack Overflow question How do I auto-resize an image to fit a 'div' container?.
This is how simply I sort from previous examples:
if my array is items
:
0: {id: 14, auctionID: 76, userID: 1, amount: 39}
1: {id: 1086, auctionID: 76, userID: 1, amount: 55}
2: {id: 1087, auctionID: 76, userID: 1, amount: 55}
I thought simply calling items.sort()
would sort it it, but there was two problems:
1. Was sorting them strings
2. Was sorting them first key
This is how I modified the sort function:
for(amount in items){
if(item.hasOwnProperty(amount)){
i.sort((a, b) => a.amount - b.amount);
}
}
.scroll {
width: 200px; height: 400px;
overflow: auto;
}
You can only type them manually, but the content assist helps you there, so it is pretty easy.
Add this line
<uses-permission android:name="android.permission."/>
and hit ctrl + space after the dot (or cmd + space on Mac). If you need an explanation for the permission, you can hit ctrl + q.
You can go to method of same controller..using this line , and if you want to pass some parameters to that action it can be done by writing inside ( new { } ).. Note:- you can add as many parameter as required.
@Html.ActionLink("MethodName", new { parameter = Model.parameter })
You (as in the process that runs b.php
, either you through CLI
or a webserver) need write access to the directory in which the files are located. You are updating the directory content, so access to the file is not enough.
Note that if you use the PHP chmod()
function to set the mode of a file or folder to 777
you should use 0777
to make sure the number is correctly interpreted as an octal number.
I had the same error. Creating a new AVD with the appropriate API level solved my problem.
This indicates the linux has delivered a SIGTERM
to your process. This is usually at the request of some other process (via kill()
) but could also be sent by your process to itself (using raise()
). This signal requests an orderly shutdown of your process.
If you need a quick cheatsheet of signal numbers, open a bash shell and:
$ kill -l
1) SIGHUP 2) SIGINT 3) SIGQUIT 4) SIGILL
5) SIGTRAP 6) SIGABRT 7) SIGBUS 8) SIGFPE
9) SIGKILL 10) SIGUSR1 11) SIGSEGV 12) SIGUSR2
13) SIGPIPE 14) SIGALRM 15) SIGTERM 16) SIGSTKFLT
17) SIGCHLD 18) SIGCONT 19) SIGSTOP 20) SIGTSTP
21) SIGTTIN 22) SIGTTOU 23) SIGURG 24) SIGXCPU
25) SIGXFSZ 26) SIGVTALRM 27) SIGPROF 28) SIGWINCH
29) SIGIO 30) SIGPWR 31) SIGSYS 34) SIGRTMIN
35) SIGRTMIN+1 36) SIGRTMIN+2 37) SIGRTMIN+3 38) SIGRTMIN+4
39) SIGRTMIN+5 40) SIGRTMIN+6 41) SIGRTMIN+7 42) SIGRTMIN+8
43) SIGRTMIN+9 44) SIGRTMIN+10 45) SIGRTMIN+11 46) SIGRTMIN+12
47) SIGRTMIN+13 48) SIGRTMIN+14 49) SIGRTMIN+15 50) SIGRTMAX-14
51) SIGRTMAX-13 52) SIGRTMAX-12 53) SIGRTMAX-11 54) SIGRTMAX-10
55) SIGRTMAX-9 56) SIGRTMAX-8 57) SIGRTMAX-7 58) SIGRTMAX-6
59) SIGRTMAX-5 60) SIGRTMAX-4 61) SIGRTMAX-3 62) SIGRTMAX-2
63) SIGRTMAX-1 64) SIGRTMAX
You can determine the sender by using an appropriate signal handler like:
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
void sigterm_handler(int signal, siginfo_t *info, void *_unused)
{
fprintf(stderr, "Received SIGTERM from process with pid = %u\n",
info->si_pid);
exit(0);
}
int main (void)
{
struct sigaction action = {
.sa_handler = NULL,
.sa_sigaction = sigterm_handler,
.sa_mask = 0,
.sa_flags = SA_SIGINFO,
.sa_restorer = NULL
};
sigaction(SIGTERM, &action, NULL);
sleep(60);
return 0;
}
Notice that the signal handler also includes a call to exit()
. It's also possible for your program to continue to execute by ignoring the signal, but this isn't recommended in general (if it's a user doing it there's a good chance it will be followed by a SIGKILL if your process doesn't exit, and you lost your opportunity to do any cleanup then).
In this function pass string that you want to assign in label and pass font size in place of self.activityFont and pass label width in place of 235, now you get label height according to your string. it will work fine.
-(float)calculateLabelStringHeight:(NSString *)answer
{
CGRect textRect = [answer boundingRectWithSize: CGSizeMake(235, 10000000) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName:self.activityFont} context:nil];
return textRect.size.height;
}
Eclipse Kepler (at least) allows to specifically reload a software site in the Preferences > Install/Update > Available Software Sites dialog.
It is a cleaner / simpler solution than the workaround explained above (add trailing slash) and it worked for me...
Note: a link to this dialog is also available in the Install New Software dialog.
If your list of lists contains lists with varying number of elements then the answer of Ignacio Vazquez-Abrams will not work. Instead there are at least 3 options:
1) Make an array of arrays:
x=[[1,2],[1,2,3],[1]]
y=numpy.array([numpy.array(xi) for xi in x])
type(y)
>>><type 'numpy.ndarray'>
type(y[0])
>>><type 'numpy.ndarray'>
2) Make an array of lists:
x=[[1,2],[1,2,3],[1]]
y=numpy.array(x)
type(y)
>>><type 'numpy.ndarray'>
type(y[0])
>>><type 'list'>
3) First make the lists equal in length:
x=[[1,2],[1,2,3],[1]]
length = max(map(len, x))
y=numpy.array([xi+[None]*(length-len(xi)) for xi in x])
y
>>>array([[1, 2, None],
>>> [1, 2, 3],
>>> [1, None, None]], dtype=object)
if you have a hive setup you can put the local dataset directly using Hive load command in hdfs/s3.
You will need to use "Local" keyword when writing your load command.
Syntax for hiveload command
LOAD DATA [LOCAL] INPATH 'filepath' [OVERWRITE] INTO TABLE tablename [PARTITION (partcol1=val1, partcol2=val2 ...)]
Refer below link for more detailed information. https://cwiki.apache.org/confluence/display/Hive/LanguageManual%20DML#LanguageManualDML-Loadingfilesintotables
I ran into an issue with external API providing dates in this format, some times even with UTC difference info like /Date(123232313131+1000)/
. I was able to turn it js Date
object with following code
var val = '/Date(123232311-1000)/';
var pattern = /^\/Date\([0-9]+((\+|\-)[0-9]+)?\)\/$/;
var date = null;
// Check that the value matches /Date(123232311-1000)/ format
if (pattern.test(val)) {
var number = val.replace('/Date(', '',).replace(')/', '');
if (number.indexOf('+') >= 0) {
var split = number.split('+');
number = parseInt(split[0]) + parseInt(split[1]);
} else if (number.indexOf('-') >= 0) {
var split = number.split('-');
number = parseInt(split[0]) - parseInt(split[1]);
} else {
number = parseInt(number);
date = new Date(number);
}
}
I use mailutils and the confusing part is that in order to attach a file you need to use the capital A parameter. below is an example.
echo 'here you put the message body' | mail -A syslogs.tar.gz [email protected]
If you want to know if your mail command is from mailutils just run "mail -V".
root@your-server:~$ mail -V
mail (GNU Mailutils) 2.99.98
Copyright (C) 2010 Free Software Foundation, inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
If you define a class without any constructor, the compiler will synthesize a constructor for you (and that will be a default constructor -- i.e., one that doesn't require any arguments). If, however, you do define a constructor, (even if it does take one or more arguments) the compiler will not synthesize a constructor for you -- at that point, you've taken responsibility for constructing objects of that class, so the compiler "steps back", so to speak, and leaves that job to you.
You have two choices. You need to either provide a default constructor, or you need to supply the correct parameter when you define an object. For example, you could change your constructor to look something like:
Blowfish(BlowfishAlgorithm algorithm = CBC);
...so the ctor could be invoked without (explicitly) specifying an algorithm (in which case it would use CBC as the algorithm).
The other alternative would be to explicitly specify the algorithm when you define a Blowfish object:
class GameCryptography {
Blowfish blowfish_;
public:
GameCryptography() : blowfish_(ECB) {}
// ...
};
In C++ 11 (or later) you have one more option available. You can define your constructor that takes an argument, but then tell the compiler to generate the constructor it would have if you didn't define one:
class GameCryptography {
public:
// define our ctor that takes an argument
GameCryptography(BlofishAlgorithm);
// Tell the compiler to do what it would have if we didn't define a ctor:
GameCryptography() = default;
};
As a final note, I think it's worth mentioning that ECB, CBC, CFB, etc., are modes of operation, not really encryption algorithms themselves. Calling them algorithms won't bother the compiler, but is unreasonably likely to cause a problem for others reading the code.
Toggle both modals
$('#modalOne').modal('toggle');
$('#modalTwo').modal('toggle');
To AutoComplete TextBox Control in C#.net windows application using
wamp mysql database...
here is my code..
AutoComplete();
write this **AutoComplete();** text in form-load event..
private void Autocomplete()
{
try
{
MySqlConnection cn = new MySqlConnection("server=localhost;
database=databasename;user id=root;password=;charset=utf8;");
cn.Open();
MySqlCommand cmd = new MySqlCommand("SELECT distinct Column_Name
FROM table_Name", cn);
DataSet ds = new DataSet();
MySqlDataAdapter da = new MySqlDataAdapter(cmd);
da.Fill(ds, "table_Name");
AutoCompleteStringCollection col = new
AutoCompleteStringCollection();
int i = 0;
for (i = 0; i <= ds.Tables[0].Rows.Count - 1; i++)
{
col.Add(ds.Tables[0].Rows[i]["Column_Name"].ToString());
}
textBox1.AutoCompleteSource = AutoCompleteSource.CustomSource;
textBox1.AutoCompleteCustomSource = col;
textBox1.AutoCompleteMode = AutoCompleteMode.Suggest;
cn.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
}
After impelemtation of conversion to integer CONVERT(BIGINT, [timestamp]) as Timestamp I've got the result like
446701117 446701118 446701119 446701120 446701121 446701122 446701123 446701124 446701125 446701126
Yes, this is not a date and time, It's serial numbers
ping the DNS first . If fails then configure your inbound/outbound rules in the launch wizard . configure ALL traffic and ALL protocol and just save with default options . Ping again with your local system and then should work
I was facing the same issue in my Angular application. I was using RocketChat REST API in my application and I was trying to use the rooms.createDiscussion
, but as an error as below.
ERROR Error: Uncaught (in promise): HttpErrorResponse: {"headers":{"normalizedNames":{},"lazyUpdate":null},"status":200,"statusText":"OK","url":"myurl/rocketchat/api/v1/rooms.createDiscussion","ok":false,"name":"HttpErrorResponse","message":"Http failure during parsing for myrul/rocketchat/api/v1/rooms.createDiscussion","error":{"error":{},"text":"
I have tried couple of things like changing the responseType: 'text'
but none of them worked. At the end I was able to find the issue was with my RocketChat installation. As mentioned in the RocketChat change log the API rooms.createDiscussion
is been introduced in the version 1.0.0 unfortunately I was using a lower version.
My suggestion is to check the REST API is working fine or not before you spend time to fix the error in your Angular code. I used curl
command to check that.
curl -H "X-Auth-Token: token" -H "X-User-Id: userid" -H "Content-Type: application/json" myurl/rocketchat/api/v1/rooms.createDiscussion -d '{ "prid": "GENERAL", "t_name": "Discussion Name"}'
There as well I was getting an invalid HTML as a response.
<!DOCTYPE html>
<html>
<head>
<meta name="referrer" content="origin-when-crossorigin">
<script>/* eslint-disable */
'use strict';
(function() {
var debounce = function debounce(func, wait, immediate) {
Instead of a valid JSON response as follows.
{
"discussion": {
"rid": "cgk88DHLHexwMaFWh",
"name": "WJNEAM7W45wRYitHo",
"fname": "Discussion Name",
"t": "p",
"msgs": 0,
"usersCount": 0,
"u": {
"_id": "rocketchat.internal.admin.test",
"username": "rocketchat.internal.admin.test"
},
"topic": "general",
"prid": "GENERAL",
"ts": "2019-04-03T01:35:32.271Z",
"ro": false,
"sysMes": true,
"default": false,
"_updatedAt": "2019-04-03T01:35:32.280Z",
"_id": "cgk88DHLHexwMaFWh"
},
"success": true
}
So after updating to the latest RocketChat I was able to use the mentioned REST API.
The problem with String concatenation is that it leads to copying of the String object with all the associated cost. StringBuilder is not threadsafe and is therefore faster than StringBuffer, which used to be the preferred choice before Java 5. As a rule of thumb, you should not do String concatenation in a loop, which will be called often. I guess doing a few concatenations here and there will not hurt you as long as you are not talking about hundreds and this of course depends on your performance requirements. If you are doing real time stuff, you should be very careful.
This is a simple example for adding the background image in a JFrame:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class BackgroundImageJFrame extends JFrame
{
JButton b1;
JLabel l1;
public BackgroundImageJFrame()
{
setTitle("Background Color for JFrame");
setSize(400,400);
setLocationRelativeTo(null);
setDefaultCloseOperation(EXIT_ON_CLOSE);
setVisible(true);
/*
One way
-----------------
setLayout(new BorderLayout());
JLabel background=new JLabel(new ImageIcon("C:\\Users\\Computer\\Downloads\\colorful design.png"));
add(background);
background.setLayout(new FlowLayout());
l1=new JLabel("Here is a button");
b1=new JButton("I am a button");
background.add(l1);
background.add(b1);
*/
// Another way
setLayout(new BorderLayout());
setContentPane(new JLabel(new ImageIcon("C:\\Users\\Computer\\Downloads\\colorful design.png")));
setLayout(new FlowLayout());
l1=new JLabel("Here is a button");
b1=new JButton("I am a button");
add(l1);
add(b1);
// Just for refresh :) Not optional!
setSize(399,399);
setSize(400,400);
}
public static void main(String args[])
{
new BackgroundImageJFrame();
}
}
If all you need is the classpath entries, I do something like the following to use the eclipse build path.
<xmlproperty file=".classpath" collapseAttributes="true" delimiter=";" />
Then set that value in the path
<path id="eclipse.classpath">
<pathelement path="${classpath.classpathentry.path}"/>
</path>
<target name="compile" depends="init">
<javac srcdir="${src}" destdir="${build}" updatedProperty="compiled">
<classpath refid="eclipse.classpath"/>
</javac>
</target>
When your object is nested and it contains data object, other structured object or some property object, etc then using JSON.parse(JSON.stringify(object))
or Object.assign({}, obj)
or $.extend(true, {}, obj)
will not work. In that case use lodash. It is simple and easy..
var obj = {a: 25, b: {a: 1, b: 2}, c: new Date(), d: anotherNestedObject };
var A = _.cloneDeep(obj);
Now A will be your new cloned of obj without any references..
SELECT COUNT(1) FROM service s WHERE s.service_id = ?
I updated the answer of @Stichoza to remove files through subfolders.
function glob_recursive($pattern, $flags = 0) {
$fileList = glob($pattern, $flags);
foreach (glob(dirname($pattern).'/*', GLOB_ONLYDIR|GLOB_NOSORT) as $dir) {
$subPattern = $dir.'/'.basename($pattern);
$subFileList = glob_recursive($subPattern, $flags);
$fileList = array_merge($fileList, $subFileList);
}
return $fileList;
}
function glob_recursive_unlink($pattern, $flags = 0) {
array_map('unlink', glob_recursive($pattern, $flags));
}
I always do ...
myTimer.Stop();
myTimer.Start();
... is that a hack? :)
Per comment, on Threading.Timer, it's the Change method ...
dueTime Type:
System.Int32
The amount of time to delay before the invoking the callback method specified when the Timer was constructed, in milliseconds. SpecifyTimeout.Infinite
to prevent the timer from restarting. Specify zero (0) to restart the timer immediately.
$(".datepicker").datepicker().on("changeDate", function(e) {
console.log("Date changed: ", e.date);
});
If anyone else is having a nullptr on the searchview variable, I found out that the item setup is a tiny bit different:
old:
android:showAsAction="ifRoom"
android:actionViewClass="android.widget.SearchView"
new:
app:showAsAction="ifRoom|collapseActionView"
app:actionViewClass="androidx.appcompat.widget.SearchView"
pre-android x:
app:showAsAction="ifRoom|collapseActionView"
app:actionViewClass="android.support.v7.widget.SearchView"
For more information, it's updated documentation is located here.
Here's another version. This one extracts each substring to print from the main string instead of taking reducing the main string by 4000 on each loop (which might create a lot of very long strings under the hood - not sure).
CREATE PROCEDURE [Internal].[LongPrint]
@msg nvarchar(max)
AS
BEGIN
-- SET NOCOUNT ON reduces network overhead
SET NOCOUNT ON;
DECLARE @MsgLen int;
DECLARE @CurrLineStartIdx int = 1;
DECLARE @CurrLineEndIdx int;
DECLARE @CurrLineLen int;
DECLARE @SkipCount int;
-- Normalise line end characters.
SET @msg = REPLACE(@msg, char(13) + char(10), char(10));
SET @msg = REPLACE(@msg, char(13), char(10));
-- Store length of the normalised string.
SET @MsgLen = LEN(@msg);
-- Special case: Empty string.
IF @MsgLen = 0
BEGIN
PRINT '';
RETURN;
END
-- Find the end of next substring to print.
SET @CurrLineEndIdx = CHARINDEX(CHAR(10), @msg);
IF @CurrLineEndIdx BETWEEN 1 AND 4000
BEGIN
SET @CurrLineEndIdx = @CurrLineEndIdx - 1
SET @SkipCount = 2;
END
ELSE
BEGIN
SET @CurrLineEndIdx = 4000;
SET @SkipCount = 1;
END
-- Loop: Print current substring, identify next substring (a do-while pattern is preferable but TSQL doesn't have one).
WHILE @CurrLineStartIdx < @MsgLen
BEGIN
-- Print substring.
PRINT SUBSTRING(@msg, @CurrLineStartIdx, (@CurrLineEndIdx - @CurrLineStartIdx)+1);
-- Move to start of next substring.
SET @CurrLineStartIdx = @CurrLineEndIdx + @SkipCount;
-- Find the end of next substring to print.
SET @CurrLineEndIdx = CHARINDEX(CHAR(10), @msg, @CurrLineStartIdx);
SET @CurrLineLen = @CurrLineEndIdx - @CurrLineStartIdx;
-- Find bounds of next substring to print.
IF @CurrLineLen BETWEEN 1 AND 4000
BEGIN
SET @CurrLineEndIdx = @CurrLineEndIdx - 1
SET @SkipCount = 2;
END
ELSE
BEGIN
SET @CurrLineEndIdx = @CurrLineStartIdx + 4000;
SET @SkipCount = 1;
END
END
END
tosh shimayama have a solution but you can simplify a lot if you use the fact that $http returns promises and that promises can return a value:
app.factory('myService', function($http, $q) {
myService.async = function() {
return $http.get('test.json')
.then(function (response) {
var data = reponse.data;
console.log(data);
return data;
});
};
return myService;
});
app.controller('MainCtrl', function( myService,$scope) {
$scope.asyncData = myService.async();
$scope.$watch('asyncData', function(asyncData) {
if(angular.isDefined(asyncData)) {
// Do something with the returned data, angular handle promises fine, you don't have to reassign the value to the scope if you just want to use it with angular directives
}
});
});
A little demonstration in coffeescript: http://plunker.no.de/edit/ksnErx?live=preview
Your plunker updated with my method: http://plnkr.co/edit/mwSZGK?p=preview
you can use json.dumps
:
import json
# Hier comes you received data
data = json.dumps(response)
print(data)
for loading json and write it on file the following code is useful:
data = json.loads(json.dumps(Response, sort_keys=False, indent=4))
with open('data.json', 'w') as outfile:
json.dump(data, outfile, sort_keys=False, indent=4)
Starting from api level 11 or Honeycomb doing network operations on main thread is forbidden. Use thread or asynctask. For more info visit https://developer.android.com/reference/android/os/NetworkOnMainThreadException.html
First of all, finish()
doesn't destroy your process and free up the memory. It just removes the activity from the activity stack. You'd need to kill the process, which is answered in a bunch of questions (since this is being asked several times).
But the proper answer is - Don't do it. the Android OS will automatically free up memory when it needs memory. By not freeing up memory, your app will start up faster if the user gets back to it.
Please see here for a great write-up on the topic.
StringUtils.isBlank()
checks that each character of the string is a whitespace character (or that the string is empty or that it's null). This is totally different than just checking if the string is empty.
From the linked documentation:
Checks if a String is whitespace, empty ("") or null.
StringUtils.isBlank(null) = true StringUtils.isBlank("") = true StringUtils.isBlank(" ") = true StringUtils.isBlank("bob") = false StringUtils.isBlank(" bob ") = false
For comparison StringUtils.isEmpty:
StringUtils.isEmpty(null) = true
StringUtils.isEmpty("") = true
StringUtils.isEmpty(" ") = false
StringUtils.isEmpty("bob") = false
StringUtils.isEmpty(" bob ") = false
Warning: In java.lang.String.isBlank() and java.lang.String.isEmpty() work the same except they don't return true
for null
.
java.lang.String.isBlank()
(since Java 11)
By design, getRequestURL()
gives you the full URL, missing only the query string.
In HttpServletRequest
, you can get individual parts of the URI using the methods below:
// Example: http://myhost:8080/people?lastname=Fox&age=30
String uri = request.getScheme() + "://" + // "http" + "://
request.getServerName() + // "myhost"
":" + // ":"
request.getServerPort() + // "8080"
request.getRequestURI() + // "/people"
"?" + // "?"
request.getQueryString(); // "lastname=Fox&age=30"
.getScheme()
will give you "https"
if it was a https://domain
request..getServerName()
gives domain
on http(s)://domain
..getServerPort()
will give you the port.String uri = request.getScheme() + "://" +
request.getServerName() +
("http".equals(request.getScheme()) && request.getServerPort() == 80 || "https".equals(request.getScheme()) && request.getServerPort() == 443 ? "" : ":" + request.getServerPort() ) +
request.getRequestURI() +
(request.getQueryString() != null ? "?" + request.getQueryString() : "");
This snippet above will get the full URI, hiding the port if the default one was used, and not adding the "?"
and the query string if the latter was not provided.
Note, that if your request passes through a proxy, you need to look at the X-Forwarded-Proto
header since the scheme might be altered:
request.getHeader("X-Forwarded-Proto")
Also, a common header is X-Forwarded-For
, which show the original request IP instead of the proxys IP.
request.getHeader("X-Forwarded-For")
If you are responsible for the configuration of the proxy/load balancer yourself, you need to ensure that these headers are set upon forwarding.
In Symfony 2.6 and older versions, to get a parameter in a controller - you should get the container first, and then - the needed parameter.
$this->container->getParameter('api_user');
This documentation chapter explains it.
While $this->get()
method in a controller will load a service (doc)
In Symfony 2.7 and newer versions, to get a parameter in a controller you can use the following:
$this->getParameter('api_user');
So you have committed your local changes to your local repository. Then in order to get remote changes to your local repository without making changes to your local files, you can use git fetch
. Actually git pull
is a two step operation: a non-destructive git fetch
followed by a git merge
. See What is the difference between 'git pull' and 'git fetch'? for more discussion.
Detailed example:
Suppose your repository is like this (you've made changes test2
:
* ed0bcb2 - (HEAD, master) test2
* 4942854 - (origin/master, origin/HEAD) first
And the origin
repository is like this (someone else has committed test1
):
* 5437ca5 - (HEAD, master) test1
* 4942854 - first
At this point of time, git will complain and ask you to pull first if you try to push your test2
to remote repository. If you want to see what test1 is without modifying your local repository, run this:
$ git fetch
Your result local repository would be like this:
* ed0bcb2 - (HEAD, master) test2
| * 5437ca5 - (origin/master, origin/HEAD) test1
|/
* 4942854 - first
Now you have the remote changes in another branch, and you keep your local files intact.
Then what's next? You can do a git merge
, which will be the same effect as git pull
(when combined with the previous git fetch
), or, as I would prefer, do a git rebase origin/master
to apply your change on top of origin/master
, which gives you a cleaner history.
A short (but perhaps not the fastest) way to do this would be to use base r, since a data frame is just a list of equal length vectors. Thus the conversion between your input list and a 30 x 132 data.frame would be:
df <- data.frame(l)
From there we can transpose it to a 132 x 30 matrix, and convert it back to a dataframe:
new_df <- data.frame(t(df))
As a one-liner:
new_df <- data.frame(t(data.frame(l)))
The rownames will be pretty annoying to look at, but you could always rename those with
rownames(new_df) <- 1:nrow(new_df)
You can also get this error when you have an infinite loop. Make sure that you don't have any unending, recursive self references.
fun pushNotification(message: String?, clickAtion: String?) {
val ii = Intent(clickAtion)
ii.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
val pendingIntent = PendingIntent.getActivity(this, REQUEST_CODE, ii, PendingIntent.FLAG_ONE_SHOT)
val soundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION)
val largIcon = BitmapFactory.decodeResource(applicationContext.resources,
R.mipmap.ic_launcher)
val notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
val channelId = "default_channel_id"
val channelDescription = "Default Channel"
// Since android Oreo notification channel is needed.
//Check if notification channel exists and if not create one
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
var notificationChannel = notificationManager.getNotificationChannel(channelId)
if (notificationChannel != null) {
val importance = NotificationManager.IMPORTANCE_HIGH //Set the importance level
notificationChannel = NotificationChannel(channelId, channelDescription, importance)
// notificationChannel.lightColor = Color.GREEN //Set if it is necesssary
notificationChannel.enableVibration(true) //Set if it is necesssary
notificationManager.createNotificationChannel(notificationChannel)
val noti_builder = NotificationCompat.Builder(this)
.setContentTitle("MMH")
.setContentText(message)
.setSmallIcon(R.drawable.ic_launcher_background)
.setChannelId(channelId)
.build()
val random = Random()
val id = random.nextInt()
notificationManager.notify(id,noti_builder)
}
}
else
{
val notificationBuilder = NotificationCompat.Builder(this)
.setSmallIcon(R.mipmap.ic_launcher).setColor(resources.getColor(R.color.colorPrimary))
.setVibrate(longArrayOf(200, 200, 0, 0, 0))
.setContentTitle(getString(R.string.app_name))
.setLargeIcon(largIcon)
.setContentText(message)
.setAutoCancel(true)
.setStyle(NotificationCompat.BigTextStyle().bigText(message))
.setSound(soundUri)
.setContentIntent(pendingIntent)
val random = Random()
val id = random.nextInt()
notificationManager.notify(id, notificationBuilder.build())
}
}
Click handlers on anchor tags are a special case in jQuery.
I think you might be getting confused between the anchor's onclick event (known by the browser) and the click event of the jQuery object which wraps the DOM's notion of the anchor tag.
You can download the jQuery 1.3.2 source here.
The relevant sections of the source are lines 2643-2645 (I have split this out to multiple lines to make it easier to comprehend):
// Handle triggering native .onfoo handlers (and on links since we don't call .click() for links)
if (
(!elem[type] || (jQuery.nodeName(elem, 'a') && type == "click")) &&
elem["on"+type] &&
elem["on"+type].apply( elem, data ) === false
)
event.result = false;
Well guys, the solution to the problem is the following:
1) Folder 00A: 2) Counter: the last number 3) Help: the last number
Folder Perflib:
Last Counter: 00A folder´s Counter
Last Help: 00A folder´s Help
Ready, verify the same number in both. success
First few lines: man head
.
Append lines: use the >>
operator (?) in Bash:
echo 'This goes at the end of the file' >> file
I think by default values read by scanf with space/enter. Well you can provide space between '%d' if you are printing integers. Also same for other cases.
scanf("%d %d %d", &var1, &var2, &var3);
Similarly if you want to read comma separated values use :
scanf("%d,%d,%d", &var1, &var2, &var3);
Here is one I haven't seen that's even shorter
arr.slice(1).slice(-5)
Run the code snippet below for proof of it doing what you want
var arr1 = [0, 1, 2, 3, 4, 5, 6, 7],_x000D_
arr2 = [0, 1, 2, 3];_x000D_
_x000D_
document.body.innerHTML = 'ARRAY 1: ' + arr1.slice(1).slice(-5) + '<br/>ARRAY 2: ' + arr2.slice(1).slice(-5);
_x000D_
Another way to do it would be using lodash https://lodash.com/docs#rest - that is of course if you don't mind having to load a huge javascript minified file if your trying to do it from your browser.
_.slice(_.rest(arr), -5)
The following MySQL statement should modify your column to accept NULLs.
ALTER TABLE `MyTable`
ALTER COLUMN `Col3` varchar(20) DEFAULT NULL
>>> import math
>>> import numpy as np
>>> import scipy
>>> math.pi == np.pi == scipy.pi
True
So it doesn't matter, they are all the same value.
The only reason all three modules provide a pi
value is so if you are using just one of the three modules, you can conveniently have access to pi without having to import another module. They're not providing different values for pi.
I had the same issue I remove the following script and it worked for me.
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.2/jquery.min.js"></script>
After you run Lint in Android Studio and find all the unused resources, you can click on one of them from the Inspection tab. It provides some detail about the issue and a few options to fix it. One of them is Remove All Unused Resources. Selecting that option deletes all the unused resources.
I know this has already been answered. But I would like to add my solution as it may helpful for others in the future..
A common key error is: Permission denied (publickey)
. You can fix this by using keys:add
to notify Heroku of your new key.
In short follow these steps: https://devcenter.heroku.com/articles/keys
First you have to create a key if you don't have one:
ssh-keygen -t rsa
Second you have to add the key to Heroku:
heroku keys:add
In stall PuTTY in our system and set the environment variable PATH Pointing to putty path. open the command prompt and move to putty folder. Using PSCP command
There's a great example in the AngularJS docs.
It's very well commented and should get you pointed in the right direction.
A simple example, maybe more so what you're looking for is below:
HTML
<div ng-app="myDirective" ng-controller="x">
<input type="text" ng-model="test" my-directive>
</div>
JavaScript
angular.module('myDirective', [])
.directive('myDirective', function () {
return {
restrict: 'A',
link: function (scope, element, attrs) {
scope.$watch(attrs.ngModel, function (v) {
console.log('value changed, new value is: ' + v);
});
}
};
});
function x($scope) {
$scope.test = 'value here';
}
Edit: Same thing, doesn't require ngModel
jsfiddle:
JavaScript
angular.module('myDirective', [])
.directive('myDirective', function () {
return {
restrict: 'A',
scope: {
myDirective: '='
},
link: function (scope, element, attrs) {
// set the initial value of the textbox
element.val(scope.myDirective);
element.data('old-value', scope.myDirective);
// detect outside changes and update our input
scope.$watch('myDirective', function (val) {
element.val(scope.myDirective);
});
// on blur, update the value in scope
element.bind('propertychange keyup paste', function (blurEvent) {
if (element.data('old-value') != element.val()) {
console.log('value changed, new value is: ' + element.val());
scope.$apply(function () {
scope.myDirective = element.val();
element.data('old-value', element.val());
});
}
});
}
};
});
function x($scope) {
$scope.test = 'value here';
}
It means 2011-09-24 00:00:00 GMT
, and since you're at GMT -4
, it will be 20:00
the previous day.
Personally, I get 2011-09-24 02:00:00
, because I'm living at GMT +2
.
In the latest version of the Android SDK, running "SDK Manager.exe" and/or "AVD Manager.exe" will not open anymore. Even the "Launch Standalone SDK Manager" link in Android Studio, which can be previously found in Android SDK Settings, is now gone.
It is now recommended to perform manual SDK and AVD management inside Android Studio. But for those who do not have an Android Studio or for those who do not like to open Android Studio just to perform SDK management, you can still manage the SDK using the command line tools, "tools/bin/sdkmanager.bat" and "tools/bin/avdmanager.bat".
This information is available when running "tools/android.bat". I think this is true for those who currently have Android SDK tooks v25.3.1 and above.
You can use vanilla javascript by simply writing:
var width = el.clientWidth;
You could also use this to get the width of the document as follows:
var docWidth = document.documentElement.clientWidth || document.body.clientWidth;
Source: MDN
You can also get the width of the full window, including the scrollbar, as follows:
var fullWidth = window.innerWidth;
However this is not supported by all browsers, so as a fallback, you may want to use docWidth
as above, and add on the scrollbar width.
Source: MDN
The following worked for me:
USE [master]
SET DEADLOCK_PRIORITY HIGH
exec sp_dboption '[StuckDB]', 'single user', 'FALSE';
ALTER DATABASE [StuckDB] SET MULTI_USER WITH NO_WAIT
ALTER DATABASE [StuckDB] SET MULTI_USER WITH ROLLBACK IMMEDIATE
Below Should work nice and more readable using <pre>
<?php
ob_start();
echo '<pre>';
print_r($array);
$outputBuffer = ob_get_contents();
ob_end_flush();
file_put_contents('your file name', $outputBuffer);
?>
As alternative you can use insertAdjacentHTML - however I dig into and make some performance tests - (2019.09.13 Friday) MacOs High Sierra 10.13.6 on Chrome 76.0.3809 (64-bit), Safari 12.1.2 (13604.5.6), Firefox 69.0.0 (64-bit) ). The test F is only for reference - it is out of the question scope because we need to insert dynamically html - but in F I do it by 'hand' (in static way) - theoretically (as far I know) this should be the fastest way to insert new html elements.
SUMMARY
innerHTML =
(do not confuse with +=
) is fastest (Safari 48k operations per second, Firefox 43k op/sec, Chrome 23k op/sec) The A is ~31% slower than ideal solution F only chrome but on safari and firefox is faster (!)innerHTML +=...
is slowest on all browsers (Chrome 95 op/sec, Firefox 88 op/sec, Sfari 84 op/sec)More info about why innerHTML =
is much faster than innerHTML +=
is here. You can perform test on your machine/browser HERE
let html = "<div class='box'>Hello <span class='msg'>World</span> !!!</div>"_x000D_
_x000D_
function A() { _x000D_
container.innerHTML = `<div id="A_oiio">A: ${html}</div>`;_x000D_
}_x000D_
_x000D_
function B() { _x000D_
container.innerHTML += `<div id="B_oiio">B: ${html}</div>`;_x000D_
}_x000D_
_x000D_
function C() { _x000D_
container.insertAdjacentHTML('beforeend', `<div id="C_oiio">C: ${html}</div>`);_x000D_
}_x000D_
_x000D_
function D() { _x000D_
$('#container').append(`<div id="D_oiio">D: ${html}</div>`);_x000D_
}_x000D_
_x000D_
function E() {_x000D_
let d = document.createElement("div");_x000D_
d.innerHTML = `E: ${html}`;_x000D_
d.id = 'E_oiio';_x000D_
container.appendChild(d);_x000D_
}_x000D_
_x000D_
function F() { _x000D_
let dm = document.createElement("div");_x000D_
dm.id = "F_oiio";_x000D_
dm.appendChild(document.createTextNode("F: "));_x000D_
_x000D_
let d = document.createElement("div");_x000D_
d.classList.add('box');_x000D_
d.appendChild(document.createTextNode("Hello "));_x000D_
_x000D_
let s = document.createElement("span");_x000D_
s.classList.add('msg');_x000D_
s.appendChild(document.createTextNode("World"));_x000D_
_x000D_
d.appendChild(s);_x000D_
d.appendChild(document.createTextNode(" !!!"));_x000D_
dm.appendChild( d );_x000D_
_x000D_
container.appendChild(dm);_x000D_
}_x000D_
_x000D_
_x000D_
A();_x000D_
B();_x000D_
C();_x000D_
D();_x000D_
E();_x000D_
F();
_x000D_
.warr { color: red } .msg { color: blue } .box {display: inline}
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
_x000D_
<div class="warr">This snippet only for show code used in test (in jsperf.com) - it not perform test itself. </div>_x000D_
<div id="container"></div>
_x000D_
I solved in another way. You can try this.
<input id="passfld" type="text" autocomplete="off" />
<script type="text/javascript">
// Using jQuery
$(function(){
setTimeout(function(){
$("input#passfld").attr("type","password");
},10);
});
// or in pure javascript
window.onload=function(){
setTimeout(function(){
document.getElementById('passfld').type = 'password';
},10);
}
</script>
#another way
<script type="text/javascript">
function setAutoCompleteOFF(tm){
if(typeof tm =="undefined"){tm=10;}
try{
var inputs=$(".auto-complete-off,input[autocomplete=off]");
setTimeout(function(){
inputs.each(function(){
var old_value=$(this).attr("value");
var thisobj=$(this);
setTimeout(function(){
thisobj.removeClass("auto-complete-off").addClass("auto-complete-off-processed");
thisobj.val(old_value);
},tm);
});
},tm);
}catch(e){}
}
$(function(){
setAutoCompleteOFF();
});
</script>
// you need to add attribute autocomplete="off" or you can add class .auto-complete-off into the input box and enjoy
Example:
<input id="passfld" type="password" autocomplete="off" />
OR
<input id="passfld" class="auto-complete-off" type="password" />
This code works for me: check this link
This is my code when i stop and start service in activity
case R.id.buttonStart:
Log.d(TAG, "onClick: starting srvice");
startService(new Intent(this, MyService.class));
break;
case R.id.buttonStop:
Log.d(TAG, "onClick: stopping srvice");
stopService(new Intent(this, MyService.class));
break;
}
}
}
And in service class:
@Override
public void onCreate() {
Toast.makeText(this, "My Service Created", Toast.LENGTH_LONG).show();
Log.d(TAG, "onCreate");
player = MediaPlayer.create(this, R.raw.braincandy);
player.setLooping(false); // Set looping
}
@Override
public void onDestroy() {
Toast.makeText(this, "My Service Stopped", Toast.LENGTH_LONG).show();
Log.d(TAG, "onDestroy");
player.stop();
}
HAPPY CODING!
This works if you already have or set up the rename command (e.g. through brew install in Mac):
rename --lower-case --force somedir/*
I compiled some of the other answers into a single utility method:
public class TimeLimitedCodeBlock {
public static void runWithTimeout(final Runnable runnable, long timeout, TimeUnit timeUnit) throws Exception {
runWithTimeout(new Callable<Object>() {
@Override
public Object call() throws Exception {
runnable.run();
return null;
}
}, timeout, timeUnit);
}
public static <T> T runWithTimeout(Callable<T> callable, long timeout, TimeUnit timeUnit) throws Exception {
final ExecutorService executor = Executors.newSingleThreadExecutor();
final Future<T> future = executor.submit(callable);
executor.shutdown(); // This does not cancel the already-scheduled task.
try {
return future.get(timeout, timeUnit);
}
catch (TimeoutException e) {
//remove this if you do not want to cancel the job in progress
//or set the argument to 'false' if you do not want to interrupt the thread
future.cancel(true);
throw e;
}
catch (ExecutionException e) {
//unwrap the root cause
Throwable t = e.getCause();
if (t instanceof Error) {
throw (Error) t;
} else if (t instanceof Exception) {
throw (Exception) t;
} else {
throw new IllegalStateException(t);
}
}
}
}
Sample code making use of this utility method:
public static void main(String[] args) throws Exception {
final long startTime = System.currentTimeMillis();
log(startTime, "calling runWithTimeout!");
try {
TimeLimitedCodeBlock.runWithTimeout(new Runnable() {
@Override
public void run() {
try {
log(startTime, "starting sleep!");
Thread.sleep(10000);
log(startTime, "woke up!");
}
catch (InterruptedException e) {
log(startTime, "was interrupted!");
}
}
}, 5, TimeUnit.SECONDS);
}
catch (TimeoutException e) {
log(startTime, "got timeout!");
}
log(startTime, "end of main method!");
}
private static void log(long startTime, String msg) {
long elapsedSeconds = (System.currentTimeMillis() - startTime);
System.out.format("%1$5sms [%2$16s] %3$s\n", elapsedSeconds, Thread.currentThread().getName(), msg);
}
Output from running the sample code on my machine:
0ms [ main] calling runWithTimeout!
13ms [ pool-1-thread-1] starting sleep!
5015ms [ main] got timeout!
5016ms [ main] end of main method!
5015ms [ pool-1-thread-1] was interrupted!
This URL return to player actual video_id
https://www.youtube.com/embed/live_stream?channel=UCkA21M22vGK9GtAvq3DvSlA
Where UCkA21M22vGK9GtAvq3DvSlA is your channel id. You can find it inside YouTube account on "My Channel" link.
(I'm using SwiftMailer in PHP)
I was getting an error like that when I was accidentally sending a string for $email
$email = "[email protected] <Some One>";
When what I meant to be sending was
$email = Array("[email protected]"=>"Some One");
I was accidentally running it through a stringify function that I was using for logging, so once I started sending the array again, the error went away.
If you use Java >= 7, you could improve the accepted solution using try with resources:
private byte[] convertToBytes(Object object) throws IOException {
try (ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream out = new ObjectOutputStream(bos)) {
out.writeObject(object);
return bos.toByteArray();
}
}
And the other way around:
private Object convertFromBytes(byte[] bytes) throws IOException, ClassNotFoundException {
try (ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
ObjectInputStream in = new ObjectInputStream(bis)) {
return in.readObject();
}
}
Here's a straight forward implementation of the md5sum
command that computes and displays the MD5 of the file specified on the command-line. It needs to be linked against the OpenSSL library (gcc md5.c -o md5 -lssl
) to work. It's pure C, but you should be able to adapt it to your C++ application easily enough.
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/md5.h>
unsigned char result[MD5_DIGEST_LENGTH];
// Print the MD5 sum as hex-digits.
void print_md5_sum(unsigned char* md) {
int i;
for(i=0; i <MD5_DIGEST_LENGTH; i++) {
printf("%02x",md[i]);
}
}
// Get the size of the file by its file descriptor
unsigned long get_size_by_fd(int fd) {
struct stat statbuf;
if(fstat(fd, &statbuf) < 0) exit(-1);
return statbuf.st_size;
}
int main(int argc, char *argv[]) {
int file_descript;
unsigned long file_size;
char* file_buffer;
if(argc != 2) {
printf("Must specify the file\n");
exit(-1);
}
printf("using file:\t%s\n", argv[1]);
file_descript = open(argv[1], O_RDONLY);
if(file_descript < 0) exit(-1);
file_size = get_size_by_fd(file_descript);
printf("file size:\t%lu\n", file_size);
file_buffer = mmap(0, file_size, PROT_READ, MAP_SHARED, file_descript, 0);
MD5((unsigned char*) file_buffer, file_size, result);
munmap(file_buffer, file_size);
print_md5_sum(result);
printf(" %s\n", argv[1]);
return 0;
}
This can be achieved by wrapping the image and search bar in their own container and floating the image to the left with a specific width.
This takes the image out of the "flow" which means that any items rendered in normal flow will not adjust their positioning to take account of this.
To make the "in flow" searchBar appear correctly positioned to the right of the image you give it a left padding equal to the width of the image plus a gutter.
The effect is to make the image a fixed width while the rest of the container block is fluidly filled up by the search bar.
<div class="container">
<img src="img/logo.png"/>
<div id="searchBar">
<input type="text" />
</div>
</div>
and the css
.container {
width: 100%;
}
.container img {
width: 50px;
float: left;
}
.searchBar {
padding-left: 60px;
}
You can set your data-type as signed integer. When you storage coordinates to SQL you can set as lat*10000000 and long*10000000. And when you selecting with distance/radius you will divide storage coordinates to 10000000. I was test it with 300K rows, query response time is good. ( 2 x 2.67GHz CPU, 2 GB RAM, MySQL 5.5.49 )
kind_of?
and is_a?
are synonymous.
instance_of?
is different from the other two in that it only returns true
if the object is an instance of that exact class, not a subclass.
Example:
"hello".is_a? Object
and "hello".kind_of? Object
return true
because "hello"
is a String
and String
is a subclass of Object
."hello".instance_of? Object
returns false
.There are several ways:
Write-Host
: Write directly to the console, not included in function/cmdlet output. Allows foreground and background colour to be set.
Write-Debug
: Write directly to the console, if $DebugPreference
set to Continue or Stop.
Write-Verbose
: Write directly to the console, if $VerbosePreference
set to Continue or Stop.
The latter is intended for extra optional information, Write-Debug
for debugging (so would seem to fit in this case).
Additional: In PSH2 (at least) scripts using cmdlet binding will automatically get the -Verbose
and -Debug
switch parameters, locally enabling Write-Verbose
and Write-Debug
(i.e. overriding the preference variables) as compiled cmdlets and providers do.
In many situations, a custom attribute attached to a pd.DataFrame
object is not necessary. In addition, note that pandas
-object attributes may not serialize. So pickling will lose this data.
Instead, consider creating a dictionary with appropriately named keys and access the dataframe via dfs['some_label']
.
df = pd.DataFrame()
dfs = {'some_label': df}
shape
is a property of both numpy ndarray's and matrices.
A.shape
will return a tuple (m, n), where m is the number of rows, and n is the number of columns.
In fact, the numpy matrix
object is built on top of the ndarray
object, one of numpy's two fundamental objects (along with a universal function object), so it inherits from ndarray
What you are doing right now is you are adding .
on the string and not concatenating. It should be,
$result = mysqli_query($con,"SELECT `note` FROM `glogin_users` WHERE email = '".$email."'");
or simply
$result = mysqli_query($con,"SELECT `note` FROM `glogin_users` WHERE email = '$email'");
Very Simple Example below:
Hope it helps.
String str = "Hello I'm your String";
String[] splited = str.split(" ");
var splited = str.split(" ");
var splited1=splited[0]; //Hello
var splited2=splited[1]; //I'm
var splited3=splited[2]; //your
var splited4=splited[3]; //String
EDIT : this answer is old. Usage of MD5 is now discouraged as it can easily be broken.
MD5 must be good enough for you I imagine? You can achieve it with MessageDigest.
MessageDigest.getInstance("MD5");
There are also other algorithms listed here.
And here's an third party version of it, if you really want: Fast MD5
with this short code you can delete empty space at start and end of the string. If the string is "" return the message "error" else you ave a string
EditText user = findViewById(R.id.user);
userString = user.getText().toString().trim();
if (userString.matches("")) {
Toast.makeText(this, "Error", Toast.LENGTH_SHORT).show();
return;
}else{
Toast.makeText(this, "Ok", Toast.LENGTH_SHORT).show();
}
I Kind of like to do it a bit different, i like to call "myself" if needed with an Action,
private void AddRowToListView(ScannerRow row, bool suspend)
{
if (IsFormClosing)
return;
if (this.InvokeRequired)
{
var A = new Action(() => AddRowToListView(row, suspend));
this.Invoke(A);
return;
}
//as of here the Code is thread-safe
this is a handy pattern, the IsFormClosing is a field that i set to True when I am closing my form as there might be some background threads that are still running...
Update: Google Forms can now upload files. This answer was posted before Google Forms had the capability to upload files.
This solution does not use Google Forms. This is an example of using an Apps Script Web App, which is very different than a Google Form. A Web App is basically a website, but you can't get a domain name for it. This is not a modification of a Google Form, which can't be done to upload a file.
NOTE: I did have an example of both the UI Service and HTML Service, but have removed the UI Service example, because the UI Service is deprecated.
NOTE: The only sandbox setting available is now IFRAME
. I you want to use an onsubmit
attribute in the beginning form tag: <form onsubmit="myFunctionName()">
, it may cause the form to disappear from the screen after the form submission.
If you were using NATIVE mode, your file upload Web App may no longer be working. With NATIVE mode, a form submission would not invoke the default behavior of the page disappearing from the screen. If you were using NATIVE mode, and your file upload form is no longer working, then you may be using a "submit" type button. I'm guessing that you may also be using the "google.script.run" client side API to send data to the server. If you want the page to disappear from the screen after a form submission, you could do that another way. But you may not care, or even prefer to have the page stay on the screen. Depending upon what you want, you'll need to configure the settings and code a certain way.
If you are using a "submit" type button, and want to continue to use it, you can try adding event.preventDefault();
to your code in the submit event handler function. Or you'll need to use the google.script.run
client side API.
A custom form for uploading files from a users computer drive, to your Google Drive can be created with the Apps Script HTML Service. This example requires writing a program, but I've provide all the basic code here.
This example shows an upload form with Google Apps Script HTML Service.
There are various ways to end up at the Google Apps Script code editor.
I mention this because if you are not aware of all the possibilities, it could be a little confusing. Google Apps Script can be embedded in a Google Site, Sheets, Docs or Forms, or used as a stand alone app.
This example is a "Stand Alone" app with HTML Service.
HTML Service - Create a web app using HTML, CSS and Javascript
Google Apps Script only has two types of files inside of a Project
:
Script files have a .gs
extension. The .gs
code is a server side code written in JavaScript, and a combination of Google's own API.
Copy and Paste the following code
Save It
Create the first Named Version
Publish it
Set the Permissions
and you can start using it.
Code.gs file (Created by Default)
//For this to work, you need a folder in your Google drive named:
// 'For Web Hosting'
// or change the hard coded folder name to the name of the folder
// you want the file written to
function doGet(e) {
return HtmlService.createTemplateFromFile('Form')
.evaluate() // evaluate MUST come before setting the Sandbox mode
.setTitle('Name To Appear in Browser Tab')
.setSandboxMode();//Defaults to IFRAME which is now the only mode available
}
function processForm(theForm) {
var fileBlob = theForm.picToLoad;
Logger.log("fileBlob Name: " + fileBlob.getName())
Logger.log("fileBlob type: " + fileBlob.getContentType())
Logger.log('fileBlob: ' + fileBlob);
var fldrSssn = DriveApp.getFolderById(Your Folder ID);
fldrSssn.createFile(fileBlob);
return true;
}
Create an html file:
<!DOCTYPE html>
<html>
<head>
<base target="_top">
</head>
<body>
<h1 id="main-heading">Main Heading</h1>
<br/>
<div id="formDiv">
<form id="myForm">
<input name="picToLoad" type="file" /><br/>
<input type="button" value="Submit" onclick="picUploadJs(this.parentNode)" />
</form>
</div>
<div id="status" style="display: none">
<!-- div will be filled with innerHTML after form submission. -->
Uploading. Please wait...
</div>
</body>
<script>
function picUploadJs(frmData) {
document.getElementById('status').style.display = 'inline';
google.script.run
.withSuccessHandler(updateOutput)
.processForm(frmData)
};
// Javascript function called by "submit" button handler,
// to show results.
function updateOutput() {
var outputDiv = document.getElementById('status');
outputDiv.innerHTML = "The File was UPLOADED!";
}
</script>
</html>
This is a full working example. It only has two buttons and one <div>
element, so you won't see much on the screen. If the .gs
script is successful, true is returned, and an onSuccess
function runs. The onSuccess function (updateOutput) injects inner HTML into the div
element with the message, "The File was UPLOADED!"
File
, Manage Version
then Save the first VersionPublish
, Deploy As Web App
then UpdateWhen you run the Script the first time, it will ask for permissions because it's saving files to your drive. After you grant permissions that first time, the Apps Script stops, and won't complete running. So, you need to run it again. The script won't ask for permissions again after the first time.
The Apps Script file will show up in your Google Drive. In Google Drive you can set permissions for who can access and use the script. The script is run by simply providing the link to the user. Use the link just as you would load a web page.
Another example of using the HTML Service can be seen at this link here on StackOverflow:
NOTES about deprecated UI Service:
There is a difference between the UI Service, and the Ui getUi()
method of the Spreadsheet Class (Or other class) The Apps Script UI Service was deprecated on Dec. 11, 2014. It will continue to work for some period of time, but you are encouraged to use the HTML Service.
Google Documentation - UI Service
Even though the UI Service is deprecated, there is a getUi()
method of the spreadsheet class to add custom menus, which is NOT deprecated:
Spreadsheet Class - Get UI method
I mention this because it could be confusing because they both use the terminology UI.
The UI method returns a Ui
return type.
You can add HTML to a UI Service, but you can't use a <button>
, <input>
or <script>
tag in the HTML with the UI Service.
Here is a link to a shared Apps Script Web App file with an input form:
Looks like niether is faster or slower
public static void main(String arguments[]) {
//Build a long string
StringBuilder sb = new StringBuilder();
for(int j = 0; j < 10000; j++) {
sb.append("a really, really long string");
}
String str = sb.toString();
for (int testscount = 0; testscount < 10; testscount ++) {
//Test 1
long start = System.currentTimeMillis();
for(int c = 0; c < 10000000; c++) {
for (int i = 0, n = str.length(); i < n; i++) {
char chr = str.charAt(i);
doSomethingWithChar(chr);//To trick JIT optimistaion
}
}
System.out.println("1: " + (System.currentTimeMillis() - start));
//Test 2
start = System.currentTimeMillis();
char[] chars = str.toCharArray();
for(int c = 0; c < 10000000; c++) {
for (int i = 0, n = chars.length; i < n; i++) {
char chr = chars[i];
doSomethingWithChar(chr);//To trick JIT optimistaion
}
}
System.out.println("2: " + (System.currentTimeMillis() - start));
System.out.println();
}
}
public static void doSomethingWithChar(char chr) {
int newInt = chr << 2;
}
For long strings I'll chose the first one. Why copy around long strings? Documentations says:
public char[] toCharArray() Converts this string to a new character array.
Returns: a newly allocated character array whose length is the length of this string and whose contents are initialized to contain the character sequence represented by this string.
//Edit 1
I've changed the test to trick JIT optimisation.
//Edit 2
Repeat test 10 times to let JVM warm up.
//Edit 3
Conclusions:
First of all str.toCharArray();
copies entire string in memory. It can be memory consuming for long strings. Method String.charAt( )
looks up char in char array inside String class checking index before.
It looks like for short enough Strings first method (i.e. chatAt
method) is a bit slower due to this index check. But if the String is long enough, copying whole char array gets slower, and the first method is faster. The longer the string is, the slower toCharArray
performs. Try to change limit in for(int j = 0; j < 10000; j++)
loop to see it.
If we let JVM warm up code runs faster, but proportions are the same.
After all it's just micro-optimisation.
The <Comment>
tag contains two text nodes and two <br>
nodes as children.
Your xpath expression was
//*[contains(text(),'ABC')]
To break this down,
*
is a selector that matches any element (i.e. tag) -- it returns a node-set.[]
are a conditional that operates on each individual node in that node set. It matches if any of the individual nodes it operates on match the conditions inside the brackets.text()
is a selector that matches all of the text nodes that are children of the context node -- it returns a node set.contains
is a function that operates on a string. If it is passed a node set, the node set is converted into a string by returning the string-value of the node in the node-set that is first in document order. Hence, it can match only the first text node in your <Comment>
element -- namely BLAH BLAH BLAH
. Since that doesn't match, you don't get a <Comment>
in your results.You need to change this to
//*[text()[contains(.,'ABC')]]
*
is a selector that matches any element (i.e. tag) -- it returns a node-set.[]
are a conditional that operates on each individual node in that node set -- here it operates on each element in the document.text()
is a selector that matches all of the text nodes that are children of the context node -- it returns a node set.[]
are a conditional that operates on each node in that node set -- here each individual text node. Each individual text node is the starting point for any path in the brackets, and can also be referred to explicitly as .
within the brackets. It matches if any of the individual nodes it operates on match the conditions inside the brackets.contains
is a function that operates on a string. Here it is passed an individual text node (.
). Since it is passed the second text node in the <Comment>
tag individually, it will see the 'ABC'
string and be able to match it.As mentioned here: Re: BUG #4243: Idle in transaction it is probably best to check your pg_locks table to see what is being locked and that might give you a better clue where the problem lies.
I've taken a very similar approach as some of the above, but made it a little more concrete, I think. Here, a parent component will pass the url (or whatever text you want) as a prop.
import * as React from 'react'
export const CopyButton = ({ url }: any) => {
const copyToClipboard = () => {
const textField = document.createElement('textarea');
textField.innerText = url;
document.body.appendChild(textField);
textField.select();
document.execCommand('copy');
textField.remove();
};
return (
<button onClick={copyToClipboard}>
Copy
</button>
);
};
You can create an alias in .bashrc file as follows
alias vg='valgrind --leak-check=full -v --track-origins=yes --log-file=vg_logfile.out'
So whenever you want to check memory leaks, just do simply
vg ./<name of your executable> <command line parameters to your executable>
This will generate a Valgrind log file in the current directory.
What you put inside the </dependencies>
tag of the root pom will be included by all child modules of the root pom. If all your modules use that dependency, this is the way to go.
However, if only 3 out of 10 of your child modules use some dependency, you do not want this dependency to be included in all your child modules. In that case, you can just put the dependency inside the </dependencyManagement>
. This will make sure that any child module that needs the dependency must declare it in their own pom file, but they will use the same version of that dependency as specified in your </dependencyManagement>
tag.
You can also use the </dependencyManagement>
to modify the version used in transitive dependencies, because the version declared in the upper most pom file is the one that will be used. This can be useful if your project A includes an external project B v1.0 that includes another external project C v1.0. Sometimes it happens that a security breach is found in project C v1.0 which is corrected in v1.1, but the developers of B are slow to update their project to use v1.1 of C. In that case, you can simply declare a dependency on C v1.1 in your project's root pom inside `, and everything will be good (assuming that B v1.0 will still be able to compile with C v1.1).
You can use shuf
(from the GNU coreutils package) for that. Just feed it a list of file names and ask it to return the first line from a random permutation:
ls dirname | shuf -n 1
# probably faster and more flexible:
find dirname -type f | shuf -n 1
# etc..
Adjust the -n, --head-count=COUNT
value to return the number of wanted lines. For example to return 5 random filenames you would use:
find dirname -type f | shuf -n 5
Just want to add a demonstration using loc
to filter not only by rows but also by columns and some merits to the chained operation.
The code below can filter the rows by value.
df_filtered = df.loc[df['column'] == value]
By modifying it a bit you can filter the columns as well.
df_filtered = df.loc[df['column'] == value, ['year', 'column']]
So why do we want a chained method? The answer is that it is simple to read if you have many operations. For example,
res = df\
.loc[df['station']=='USA', ['TEMP', 'RF']]\
.groupby('year')\
.agg(np.nanmean)
name
attribute points to the column containing the asociation, i.e. column name of the foreign keyreferencedColumnName
attribute points to the related column in asociated/referenced entity, i.e. column name of the primary keyYou are not required to fill the referencedColumnName
if the referenced entity has single column as PK, because there is no doubt what column it references (i.e. the Address
single column ID).
@ManyToOne
@JoinColumn(name="ADDR_ID")
public Address getAddress() { return address; }
However if the referenced entity has PK that spans multiple columns the order in which you specify @JoinColumn
annotations has significance. It might work without the referencedColumnName
specified, but that is just by luck. So you should map it like this:
@ManyToOne
@JoinColumns({
@JoinColumn(name="ADDR_ID", referencedColumnName="ID"),
@JoinColumn(name="ADDR_ZIP", referencedColumnName="ZIP")
})
public Address getAddress() { return address; }
or in case of ManyToMany
:
@ManyToMany
@JoinTable(
name="CUST_ADDR",
joinColumns=
@JoinColumn(name="CUST_ID"),
inverseJoinColumns={
@JoinColumn(name="ADDR_ID", referencedColumnName="ID"),
@JoinColumn(name="ADDR_ZIP", referencedColumnName="ZIP")
}
)
Two queries generated by Hibernate of the same join table mapping, both without referenced column specified. Only the order of @JoinColumn
annotations were changed.
/* load collection Client.emails */
select
emails0_.id_client as id1_18_1_,
emails0_.rev as rev18_1_,
emails0_.id_email as id3_1_,
email1_.id_email as id1_6_0_
from client_email emails0_
inner join email email1_ on emails0_.id_email=email1_.id_email
where emails0_.id_client='2' and
emails0_.rev='18'
/* load collection Client.emails */
select
emails0_.rev as rev18_1_,
emails0_.id_client as id2_18_1_,
emails0_.id_email as id3_1_,
email1_.id_email as id1_6_0_
from client_email emails0_
inner join email email1_ on emails0_.id_email=email1_.id_email
where emails0_.rev='2' and
emails0_.id_client='18'
We are querying a join table to get client's emails. The {2, 18}
is composite ID of Client. The order of column names is determined by your order of @JoinColumn
annotations. The order of both integers is always the same, probably sorted by hibernate and that's why proper alignment with join table columns is required and we can't or should rely on mapping order.
The interesting thing is the order of the integers does not match the order in which they are mapped in the entity - in that case I would expect {18, 2}
. So it seems the Hibernate is sorting the column names before it use them in query. If this is true and you would order your @JoinColumn
in the same way you would not need referencedColumnName
, but I say this only for illustration.
Properly filled referencedColumnName
attributes result in exactly same query without the ambiguity, in my case the second query (rev = 2
, id_client = 18
).
Here's the best solution I've found: http://jsfiddle.net/yWnZ2/446/ Works in Chrome, Firefox, Safari, IE8-11 & Edge.
If you have a declared height
(height: 1em
, height: 50%
, etc.) or it's an element where the browser knows the height (img
, svg
, or canvas
for example), then all you need for vertical centering is this:
.message {
position: absolute;
top: 0; bottom: 0; left: 0; right: 0;
margin: auto;
}
You'll usually want to specify a width
or max-width
so the content doesn't stretch the whole length of the screen/container.
If you're using this for a modal that you want always centered in the viewport overlapping other content, use position: fixed;
for both elements instead of position: absolute
. http://jsfiddle.net/yWnZ2/445/
Here's a more complete writeup: http://codepen.io/shshaw/pen/gEiDt
You are trying to call DeckOfCards::shuffle
with a deckOfCards
parameter:
deckOfCards cardDeck; // create DeckOfCards object
cardDeck.shuffle(cardDeck); // shuffle the cards in the deck
But the method takes a vector<Card>&
:
void deckOfCards::shuffle(vector<Card>& deck)
The compiler error messages are quite clear on this. I'll paraphrase the compiler as it talks to you.
Error:
[Error] no matching function for call to 'deckOfCards::shuffle(deckOfCards&)'
Paraphrased:
Hey, pal. You're trying to call a function called
shuffle
which apparently takes a single parameter of type reference-to-deckOfCards
, but there is no such function.
Error:
[Note] candidate is:
In file included from main.cpp
[Note] void deckOfCards::shuffle(std::vector&)
Paraphrased:
I mean, maybe you meant this other function called
shuffle
, but that one takes a reference-tovector<something>
.
Error:
[Note] no known conversion for argument 1 from 'deckOfCards' to 'std::vector&'
Which I'd be happy to call if I knew how to convert from a
deckOfCards
to avector
; but I don't. So I won't.
You can't - a set is unordered, so there's no index provided. You'll have to declare an int, as you say. Just remember that the next time you call keySet() you won't necessarily get the results in the same order.
$.ajax({_x000D_
url: URL,_x000D_
type: 'GET',_x000D_
dataType: 'json',_x000D_
headers: {_x000D_
'header1': 'value1',_x000D_
'header2': 'value2'_x000D_
},_x000D_
contentType: 'application/json; charset=utf-8',_x000D_
success: function (result) {_x000D_
// CallBack(result);_x000D_
},_x000D_
error: function (error) {_x000D_
_x000D_
}_x000D_
});
_x000D_
Using Xcode 7.3, I spent way too much time trying to figure this out -- none of the answers here or elsewhere did the trick -- and ultimately stumbled into a ridiculously easy solution.
Hope this helps someone.
See http://msdn.microsoft.com/en-us/library/aa365247(VS.85).aspx
This explains that Unicode versions of Windows APIs have higher limits, and how to enable that.
The difference between getAttribute and getParameter is that getParameter will return the value of a parameter that was submitted by an HTML form or that was included in a query string. getAttribute returns an object that you have set in the request, the only way you can use this is in conjunction with a RequestDispatcher. You use a RequestDispatcher to forward a request to another resource (JSP / Servlet). So before you forward the request you can set an attribute which will be available to the next resource.
Try > workdirectory/filename.txt
This would:
You can consider it equivalent to:
rm -f workdirectory/filename.txt; touch workdirectory/filename.txt
ul {
margin:0;
list-style-type: none;
}
li:before { content: "- ";}
Instead of
CGContextDrawImage(context, CGRectMake(0, 0, 145, 15), image.CGImage);
Use
[image drawInRect:CGRectMake(0, 0, 145, 15)];
In the middle of your begin/end CGcontext
methods.
This will draw the image with the correct orientation into your current image context - I'm pretty sure this has something to do with the UIImage
holding onto knowledge of the orientation while the CGContextDrawImage
method gets the underlying raw image data with no understanding of orientation.
db.getCollection('aj').find({"shapes.color":"red"},{"shapes.$":1})
OUTPUTS
{
"shapes" : [
{
"shape" : "circle",
"color" : "red"
}
]
}
If you are using gcc, it's possible to use:
const char * enum_to_string_map[]={ [enum1]='string1', [enum2]='string2'};
Then just call for instance
enum_to_string_map[enum1]
This depends on the alphabet but for the english one, try this:
String input = "abc".toLowerCase(); //note the to lower case in order to treat a and A the same way
for( int i = 0; i < input.length(); ++i) {
int position = input.charAt(i) - 'a' + 1;
}
Script loaders like LABJS
, RequireJS
will improve the speed and quality of your code.
Declare your manifest header like this
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.yourpackage"
xmlns:tools="http://schemas.android.com/tools">
Then you can add to your application tag the following attribute:
<application
tools:replace="icon, label" ../>
For example I need to replace icon and label. Good luck!
Use the .NET ServiceController class to start it, or issue the commandline command to start it --- "net start servicename". Either way works.
Please be sure to answer the question. Provide details and share your research!
Sorry, I am first time here and can only ask questions…
Used suggested:
valgrind --tool=massif --pages-as-heap=yes --massif-out-file=massif.out ./test.sh; grep mem_heap_B massif.out | sed -e 's/mem_heap_B=\(.*\)/\1/' | sort -g | tail -n 1
then:
grep mem_heap_B massif.out
...
mem_heap_B=1150976
mem_heap_B=1150976
...
this is very different from what top
command shows at similar moment:
14673 gu27mox 20 0 3280404 468380 19176 R 100.0 2.9 6:08.84 pwanew_3pic_com
what are measured units from Valgrind??
The /usr/bin/time -v ./test.sh
never answered — you must directly feed executable to /usr/bin/time
like:
/usr/bin/time -v pwanew_3pic_compass_2008florian3_dfunc.static card_0.100-0.141_31212_resubmit1.dat_1.140_1.180 1.140 1.180 31212
Command being timed: "pwanew_3pic_compass_2008florian3_dfunc.static card_0.100-0.141_31212_resubmit1.dat_1.140_1.180 1.140 1.180 31212"
User time (seconds): 1468.44
System time (seconds): 7.37
Percent of CPU this job got: 99%
Elapsed (wall clock) time (h:mm:ss or m:ss): 24:37.14
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 574844
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 74
Minor (reclaiming a frame) page faults: 468880
Voluntary context switches: 1190
Involuntary context switches: 20534
Swaps: 0
File system inputs: 81128
File system outputs: 1264
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
It's possible to save only if the user allow it to be saved just like a download and he must open it manually, the only issue is to suggest a name, my sample code will suggest a name only for Google Chome and only if you use a link instead of button because of the download
attribute.
You will only need a base64 encode library and JQuery to easy things.
// This will generate the text file content based on the form data
function buildData(){
var txtData = "Name: "+$("#nameField").val()+
"\r\nLast Name: "+$("#lastNameField").val()+
"\r\nGender: "+($("#genderMale").is(":checked")?"Male":"Female");
return txtData;
}
// This will be executed when the document is ready
$(function(){
// This will act when the submit BUTTON is clicked
$("#formToSave").submit(function(event){
event.preventDefault();
var txtData = buildData();
window.location.href="data:application/octet-stream;base64,"+Base64.encode(txtData);
});
// This will act when the submit LINK is clicked
$("#submitLink").click(function(event){
var txtData = buildData();
$(this).attr('download','sugguestedName.txt')
.attr('href',"data:application/octet-stream;base64,"+Base64.encode(txtData));
});
});
_x000D_
<!DOCTYPE html>
<html>
<head><title></title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript" src="base64.js"></script>
</head>
<body>
<form method="post" action="" id="formToSave">
<dl>
<dt>Name:</dt>
<dd><input type="text" id="nameField" value="Sample" /></dd>
<dt>Last Name:</dt>
<dd><input type="text" id="lastNameField" value="Last Name" /></dd>
<dt>Gender:</dt>
<dd><input type="radio" checked="checked" name="gender" value="M" id="genderMale" />
Male
<input type="radio" checked="checked" name="gender" value="F" />
Female
</dl>
<p><a href="javascript://Save as TXT" id="submitLink">Save as TXT</a></p>
<p><button type="submit"><img src="http://www.suttonrunners.org/images/save_icon.gif" alt=""/> Save as TXT</button></p>
</form>
</body>
</html>
_x000D_
Just to throw my hat in the race, here's my proposal:
function getCookie(name) {
const cookieDict = document.cookie.split(';')
.map((x)=>x.split('='))
.reduce((accum,current) => { accum[current[0]]=current[1]; return accum;}, Object());
return cookieDict[name];
}
The above code generates a dict that stores cookies as key-value pairs (i.e., cookieDict
), and afterwards accesses the property name
to retrieve the cookie.
This could effectively be expressed as a one-liner, but this is only for the brave:
document.cookie.split(';').map((x)=>x.split('=')).reduce((accum,current) => { accum[current[0]]=current[1]; return accum;}, {})[name]
The absolute best approach would be to generate cookieDict
at page load and then throughout the page lifecycle just access individual cookies by calling cookieDict['cookiename']
.
For restarting the animation of a gif image, you can use the code:
$('#img_gif').attr('src','file.gif?' + Math.random());
You can also use the setProperty method like below
document.getElementById('divName').style.setProperty("top", "100px");
Yes, you should start with Java SE. Java EE is for web applications and Java ME is for mobile applications--both of these build off of SE.
[^]
( within [ ] ) is negation in regular expression whereas ^
is "begining of string"
[^a-z]
matches any single character that is not from "a" to "z"
^[a-z]
means string starts with from "a" to "z"
Use this:
- (void)showSMSPicker
{
Class messageClass = (NSClassFromString(@"MFMessageComposeViewController"));
if (messageClass != nil) {
// Check whether the current device is configured for sending SMS messages
if ([messageClass canSendText]) {
[self displaySMSComposerSheet];
}
}
}
- (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result
{
//feedbackMsg.hidden = NO;
// Notifies users about errors associated with the interface
switch (result)
{
case MessageComposeResultCancelled:
{
UIAlertView *alert1 = [[UIAlertView alloc] initWithTitle:@"Message" message:@"SMS sending canceled!!!" delegate:self cancelButtonTitle:nil otherButtonTitles:@"OK", nil];
[alert1 show];
[alert1 release];
}
// feedbackMsg.text = @"Result: SMS sending canceled";
break;
case MessageComposeResultSent:
{
UIAlertView *alert2 = [[UIAlertView alloc] initWithTitle:@"Message" message:@"SMS sent!!!" delegate:self cancelButtonTitle:nil otherButtonTitles:@"OK", nil];
[alert2 show];
[alert2 release];
}
// feedbackMsg.text = @"Result: SMS sent";
break;
case MessageComposeResultFailed:
{
UIAlertView *alert3 = [[UIAlertView alloc] initWithTitle:@"Message" message:@"SMS sending failed!!!" delegate:self cancelButtonTitle:nil otherButtonTitles:@"OK", nil];
[alert3 show];
[alert3 release];
}
// feedbackMsg.text = @"Result: SMS sending failed";
break;
default:
{
UIAlertView *alert4 = [[UIAlertView alloc] initWithTitle:@"Message" message:@"SMS not sent!!!" delegate:self cancelButtonTitle:nil otherButtonTitles:@"OK", nil];
[alert4 show];
[alert4 release];
}
// feedbackMsg.text = @"Result: SMS not sent";
break;
}
[self dismissModalViewControllerAnimated: YES];
}
You can use max() to get the max value. The max function can also return the index of the maximum value in the vector. To get this, assign the result of the call to max to a two element vector instead of just a single variable.
e.g. z is your array,
>> [x, y] = max(z)
x =
7
y =
4
Here, 7 is the largest number at the 4th position(index).
Mac version: $ ld -v 2, don't know how to get detailed paths. output
Library search paths:
/usr/lib
/usr/local/lib
Framework search paths:
/Library/Frameworks/
/System/Library/Frameworks/
If you're using Python 3.4, there is the brand new higher-level pathlib
module which allows you to conveniently call pathlib.Path.cwd()
to get a Path
object representing your current working directory, along with many other new features.
More info on this new API can be found here.
Another small point: If you used the import some_module as sm
syntax, then you have to re-load the module with its aliased name (sm
in this example):
>>> import some_module as sm
...
>>> import importlib
>>> importlib.reload(some_module) # raises "NameError: name 'some_module' is not defined"
>>> importlib.reload(sm) # works
In my case, I just turn on WIFI and mobile data in the emulator and it works like a charm. cause I can't send comments, post a reply. Good luck
Try this
@RequestMapping(value = "proffessional", method = RequestMethod.POST)
public @ResponseBody
String forgotPassword(@ModelAttribute("PROFESSIONAL") UserProfessionalForm professionalForm,
BindingResult result, Model model) {
UserProfileVO userProfileVO = new UserProfileVO();
userProfileVO.setUser(sessionData.getUser());
userService.saveUserProfile(userProfileVO);
model.addAttribute("professional", professionalForm);
return "Your Professional Details Updated";
}
printf("\e[1;1H\e[2J");
This function will work on ANSI terminals, demands POSIX. I assume there is a version that might also work on window's console, since it also supports ANSI escape sequences.
#include <unistd.h>
void clearScreen()
{
const char *CLEAR_SCREEN_ANSI = "\e[1;1H\e[2J";
write(STDOUT_FILENO, CLEAR_SCREEN_ANSI, 12);
}
There are some other alternatives, some of which don't move the cursor to {1,1}.
Here's a solution that mixes the code by Jared Rummler and AndroidMechanic.
Note: fb://facewebmodal/f?href=
redirects to a weird facebook page that doesn't have the like and other important buttons, which is why I try fb://page/
. It works fine with the current Facebook version (126.0.0.21.77, June 1st 2017). The catch might be useless, I left it just in case.
public static String getFacebookPageURL(Context context)
{
final String FACEBOOK_PAGE_ID = "123456789";
final String FACEBOOK_URL = "MyFacebookPage";
if(appInstalledOrNot(context, "com.facebook.katana"))
{
try
{
return "fb://page/" + FACEBOOK_PAGE_ID;
// previous version, maybe relevant for old android APIs ?
// return "fb://facewebmodal/f?href=" + FACEBOOK_URL;
}
catch(Exception e) {}
}
else
{
return FACEBOOK_URL;
}
}
Here's the appInstalledOrNot
function which I took (and modified) from Aerrow's answer to this post
private static boolean appInstalledOrNot(Context context, String uri)
{
PackageManager pm = context.getPackageManager();
try
{
pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES);
return true;
}
catch(PackageManager.NameNotFoundException e)
{
}
return false;
}
How to get the Facebook ID of a page:
View Page Source
fb://page/?id=
You want to reshape
the array.
B = np.reshape(A, (-1, 2))
where -1
infers the size of the new dimension from the size of the input array.
Try this one for sharing only three apps-Facebook, Twitter, KakaoStory.
public void onShareClick(View v){
List<Intent> targetShareIntents=new ArrayList<Intent>();
Intent shareIntent=new Intent();
shareIntent.setAction(Intent.ACTION_SEND);
shareIntent.setType("text/plain");
List<ResolveInfo> resInfos=getPackageManager().queryIntentActivities(shareIntent, 0);
if(!resInfos.isEmpty()){
System.out.println("Have package");
for(ResolveInfo resInfo : resInfos){
String packageName=resInfo.activityInfo.packageName;
Log.i("Package Name", packageName);
if(packageName.contains("com.twitter.android") || packageName.contains("com.facebook.katana") || packageName.contains("com.kakao.story")){
Intent intent=new Intent();
intent.setComponent(new ComponentName(packageName, resInfo.activityInfo.name));
intent.setAction(Intent.ACTION_SEND);
intent.setType("text/plain");
intent.putExtra(Intent.EXTRA_TEXT, "Text");
intent.putExtra(Intent.EXTRA_SUBJECT, "Subject");
intent.setPackage(packageName);
targetShareIntents.add(intent);
}
}
if(!targetShareIntents.isEmpty()){
System.out.println("Have Intent");
Intent chooserIntent=Intent.createChooser(targetShareIntents.remove(0), "Choose app to share");
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, targetShareIntents.toArray(new Parcelable[]{}));
startActivity(chooserIntent);
}else{
System.out.println("Do not Have Intent");
showDialaog(this);
}
}
}
I found a caveat that no one so far has mentioned. I don't know if it will come up often in practical situations, but here it is for the sake of completeness.
Usually, calculating a number modulo infinity returns itself as a float, but a fraction modulo infinity returns nan
(not a number). Here is an example:
>>> from fractions import Fraction
>>> from math import inf
>>> 3 % inf
3.0
>>> 3.5 % inf
3.5
>>> Fraction('1/3') % inf
nan
I filed an issue on the Python bug tracker. It can be seen at https://bugs.python.org/issue32968.
Update: this will be fixed in Python 3.8.
use simplejson or cjson for speedups
import simplejson as json
json.loads(obj)
or
cjson.decode(obj)
Chrome DevTools, Safari Inspector and Firebug support getEventListeners(node).
Remove these two lines:
xmlHttp.setRequestHeader("Content-length", params.length);
xmlHttp.setRequestHeader("Connection", "close");
XMLHttpRequest isn't allowed to set these headers, they are being set automatically by the browser. The reason is that by manipulating these headers you might be able to trick the server into accepting a second request through the same connection, one that wouldn't go through the usual security checks - that would be a security vulnerability in the browser.
Just to add another option for Windows users, the Get-FileHash
PowerShell cmdlet can be used (https://technet.microsoft.com/en-us/library/dn520872.aspx).
Example usage:
Get-FileHash MyImage.iso -Algorithm MD5
If all you're after is just the raw hash then:
(Get-FileHash MyImage.iso -Algorithm MD5).Hash
You can use parseInt
to parse a string to a number. To be on the safe side of things, always pass 10
as the second argument to parse in base 10.
num1 = parseInt(num1, 10);
num2 = parseInt(num2, 10);
alert(num1 + num2);
I use a similar technique to what @Sarfraz posted, except instead of hiding elements, I just manipulate the class of the image that I'm loading.
<style type="text/css">
.loading { background-image: url(loading.gif); }
.loaderror { background-image: url(loaderror.gif); }
</style>
...
<img id="image" class="loading" />
...
<script type="text/javascript">
var img = new Image();
img.onload = function() {
i = document.getElementById('image');
i.removeAttribute('class');
i.src = img.src;
};
img.onerror = function() {
document.getElementById('image').setAttribute('class', 'loaderror');
};
img.src = 'http://path/to/image.png';
</script>
In my case, sometimes images don't load, so I handle the onerror event to change the image class so it displays an error background image (rather than the browser's broken image icon).
I had a similar problem to the OP. Then I saw the answer from @Urs Marian which helped a lot. But additionally what I was looking for is, when there are multiple values in a column and they will be grouped, how I can get the last submitted value (e.g. ordered by a date/id column).
Example:
We have following table structure:
CREATE TABLE tablename(
[msgid] [int] NOT NULL,
[userid] [int] NOT NULL,
[username] [varchar](70) NOT NULL,
[message] [varchar](5000) NOT NULL
)
Now there are at least two datasets in the table:
+-------+--------+----------+---------+
| msgid | userid | username | message |
+-------+--------+----------+---------+
| 1 | 1 | userA | hello |
| 2 | 1 | userB | world |
+-------+--------+----------+---------+
Therefore following SQL script does work (checked on MSSQL) to group it, also if the same userid has different username values. In the example below, the username with the highest msgid will be shown:
SELECT m.userid,
(select top 1 username from table where userid = m.userid order by msgid desc) as username,
count(*) as messages
FROM tablename m
GROUP BY m.userid
ORDER BY count(*) DESC
In Mgmt Studio, when you are editing the top 200, you can view the SQL pane - either by right clicking in the grid and choosing Pane->SQL or by the button in the upper left. This will allow you to write a custom query to drill down to the row(s) you want to edit.
But ultimately mgmt studio isn't a data entry/update tool which is why this is a little cumbersome.
There is also a gradle option --offline
which maybe results in the behavior you want.
PHP file (name is upload.php)
<?php
// ============= File Upload Code d ===========================================
$target_dir = "uploaded/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
// Check if file already exists
if (file_exists($target_file)) {
echo "Sorry, file already exists.";
$uploadOk = 0;
}
// Check file size -- Kept for 500Mb
if ($_FILES["fileToUpload"]["size"] > 500000000) {
echo "Sorry, your file is too large.";
$uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "wmv" && $imageFileType != "mp4" && $imageFileType != "avi" && $imageFileType != "MP4") {
echo "Sorry, only wmv, mp4 & avi files are allowed.";
$uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
echo "Sorry, your file was not uploaded.";
// if everything is ok, try to upload file
} else {
if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
} else {
echo "Sorry, there was an error uploading your file.";
}
}
// =============================================== File Upload Code u ==========================================================
// ============= Connectivity for DATABASE d ===================================
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "test";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
else
$vidname = $_FILES["fileToUpload"]["name"] . "";
$vidsize = $_FILES["fileToUpload"]["size"] . "";
$vidtype = $_FILES["fileToUpload"]["type"] . "";
$sql = "INSERT INTO videos (name, size, type) VALUES ('$vidname','$vidsize','$vidtype')";
if ($conn->query($sql) === TRUE) {}
else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
// ============= Connectivity for DATABASE u ===================================
?>
Have you tried height="100%"
in the definition of your iframe ? It seems to do what you seek, if you add height:100%
in the css for "body" (if you do not, 100% will be "100% of your content").
EDIT: do not do this. The height
attribute (as well as the width
one) must have an integer as value, not a string.
Goto config/initializers/setup_mail.rb
Check whether the configuration there matches the configuration written in the development.rb
file.It should look like the following in both files:
config.action_mailer.smtp_settings = {
:address =>"[email protected]",
:port => 587,
:domain => "gmail.com",
:user_name => "[email protected]",
:password => "********",
:authentication => 'plain',
:enable_starttls_auto => true,
:openssl_verify_mode => 'none'
}
This will most certainly solve your problem.
Short of granting access to DBMS_LOCK.sleep
, this will work but it's a horrible hack:
IN_TIME INT; --num seconds
v_now DATE;
-- 1) Get the date & time
SELECT SYSDATE
INTO v_now
FROM DUAL;
-- 2) Loop until the original timestamp plus the amount of seconds <= current date
LOOP
EXIT WHEN v_now + (IN_TIME * (1/86400)) <= SYSDATE;
END LOOP;
span.middle {
margin: 0 10px 0 10px; /*top right bottom left */
}
<span>text</span> <span class="middle">text</span> <span>text</span>
Follow this, it can be like what you are looking:
var obj = {_x000D_
Objone: 'one',_x000D_
Objtwo: 'two'_x000D_
};_x000D_
_x000D_
var key = "Objone";_x000D_
delete obj[key];_x000D_
console.log(obj); // prints { "objtwo": two}
_x000D_
You could also use the apache library and do this:
StringUtils.split(test, "|");
You might consider referencing the actual date/time in the source column for Quote_Month
, then you could transform your OR
into a couple of AND
s, something like (assuing the date's in something I've chosen to call Quote_Date
)
=SUMIFS(Quote_Value,"<=90",Quote_Date,">="&DATE(2013,11,1),Quote_Date,"<="&DATE(2013,12,31),Salesman,"=JBloggs",Days_To_Close)
(I moved the interesting conditions to the front).
This approach works here because that "OR" condition is actually specifying a date range - it might not work in other cases.
A personal example using mysql 5.5: I had an inner join between 2 tables, one of 3 million rows and one of 10 thousand rows.
When using a like on an index as below(no wildcards), it took about 30 seconds:
where login like '12345678'
using 'explain' I get:
When using an '=' on the same query, it took about 0.1 seconds:
where login ='600009'
Using 'explain' I get:
As you can see, the like
completely cancelled the index seek, so query took 300 times more time.
Use it inside a label
. Use vertical-align
to set it to various values -- bottom
, baseline
, middle
etc.
The following code includes a counted...
var count = 1;_x000D_
_x000D_
do {_x000D_
function count_down(obj, count){_x000D_
_x000D_
let element = document.getElementById('count'+ count);_x000D_
_x000D_
element.innerHTML = 80 - obj.value.length;_x000D_
_x000D_
if(80 - obj.value.length < 5){_x000D_
element.style.color = "firebrick";_x000D_
}else{_x000D_
element.style.color = "#333";_x000D_
}_x000D_
}_x000D_
count++;_x000D_
} while (count < 20);
_x000D_
.text-input {_x000D_
padding: 8px 16px;_x000D_
width: 50%;_x000D_
margin-bottom: 5px;_x000D_
margin-top: 10px;_x000D_
font-size: 20px;_x000D_
font-weight: 700;_x000D_
font-family: Raleway;_x000D_
border: 1px solid dodgerblue;_x000D_
}
_x000D_
<p><input placeholder="Title" id="bike-input-title" onkeyup="count_down(this, 3)" maxlength="80" class="text-input" name="bikeTitle" ></p>_x000D_
<span id="count3" style="float: right; font-family: Raleway; font-size:20px; font-weight:600; margin-top:-5px;">80</span><br>
_x000D_
Yes you can. You can even test it:
var i = 0;_x000D_
var timer = setInterval(function() {_x000D_
console.log(++i);_x000D_
if (i === 5) clearInterval(timer);_x000D_
console.log('post-interval'); //this will still run after clearing_x000D_
}, 200);
_x000D_
In this example, this timer clears when i
reaches 5.
We made a little tool for this type of thing https://github.com/taskrabbit/elasticsearch-dump
Give a style inside the td element or in your scss file, like this:
vertical-align:
middle;
My approach. Tricky, but works well for me
<p> </p>
you have defined the public dir in app root/public
app.use(express.static(__dirname + '/public'));
so you have to use:
./css/main.css
A symbolic link to the desired version, defined globally:
sudo ln -s /usr/bin/qmake-qt5 /usr/bin/qmake
... or per user:
sudo ln -s /usr/bin/qmake-qt5 /home/USERNAME/.local/bin/qmake
... to see if it works:
qmake --version
@Ali Shakiba your code needs some modification. Error part:
for (int i = 0; i < myArray.length; i++) {
myStatement.setString(i, myArray[i][1]);
myStatement.setString(i, myArray[i][2]);
}
Updated code:
String myArray[][] = {
{"1-1", "1-2"},
{"2-1", "2-2"},
{"3-1", "3-2"}
};
StringBuffer mySql = new StringBuffer("insert into MyTable (col1, col2) values (?, ?)");
for (int i = 0; i < myArray.length - 1; i++) {
mySql.append(", (?, ?)");
}
mysql.append(";"); //also add the terminator at the end of sql statement
myStatement = myConnection.prepareStatement(mySql.toString());
for (int i = 0; i < myArray.length; i++) {
myStatement.setString((2 * i) + 1, myArray[i][1]);
myStatement.setString((2 * i) + 2, myArray[i][2]);
}
myStatement.executeUpdate();
If your object is myObject
, and you want to test to see if it is an NSString
, the code would be:
[myObject isKindOfClass:[NSString class]]
Likewise, if you wanted to test myObject
for a UIImageView
:
[myObject isKindOfClass:[UIImageView class]]
Since you can also input numbers as well as fixed type strings, the answer should actually be:
function isBlank(value) {
return $.trim(value);
}
//in html file
<div class="row">
<div class="col-md-6">
<div class="form-group">
<label for="name">Country</label>
<select class="form-control" formControlName="country" (change)="onCountryChange($event.target.value)">
<option disabled selected value [ngValue]="null"> -- Select Country -- </option>
<option *ngFor="let country of countries" [value]="country.id">{{country.name}}</option>
<div *ngIf="isEdit">
<option></option>
</div>
</select>
</div>
</div>
</div>
<div class="help-block" *ngIf="studentForm.get('country').invalid && studentForm.get('country').touched">
<div *ngIf="studentForm.get('country').errors.required">*country is required</div>
</div>
<div class="row">
<div class="col-md-6">
<div class="form-group">
<label for="name">State</label>
<select class="form-control" formControlName="state" (change)="onStateChange($event.target.value)">
<option disabled selected value [ngValue]="null"> -- Select State -- </option>
<option *ngFor="let state of states" [value]="state.id">{{state.state_name}}</option>
</select>
</div>
</div>
</div>
<div class="help-block" *ngIf="studentForm.get('state').invalid && studentForm.get('state').touched">
<div *ngIf="studentForm.get('state').errors.required">*state is enter code hererequired</div>
</div>
<div class="row">
<div class="col-md-6">
<div class="form-group">
<label for="name">City</label>
<select class="form-control" formControlName="city">
<option disabled selected value [ngValue]="null"> -- Select City -- </option>
<option *ngFor="let city of cities" [value]="city.id" >{{city.city_name}}</option>
</select>
</div>
</div>
</div>
<div class="help-block" *ngIf="studentForm.get('city').invalid && studentForm.get('city').touched">
<div *ngIf="studentForm.get('city').errors.required">*city is required</div>
</div>
//then in component
onCountryChange(countryId:number){
this.studentServive.getSelectedState(countryId).subscribe(resData=>{
this.states = resData;
});
}
onStateChange(stateId:number){
this.studentServive.getSelectedCity(stateId).subscribe(resData=>{
this.cities = resData;
});
}`enter code here`
if (document.getElementById('theElement')) // do whatever after this
For undefined things that throw errors, test the property name of the parent object instead of just the variable name - so instead of:
if (blah) ...
do:
if (window.blah) ...
std::atomic
exists because many ISAs have direct hardware support for it
What the C++ standard says about std::atomic
has been analyzed in other answers.
So now let's see what std::atomic
compiles to to get a different kind of insight.
The main takeaway from this experiment is that modern CPUs have direct support for atomic integer operations, for example the LOCK prefix in x86, and std::atomic
basically exists as a portable interface to those intructions: What does the "lock" instruction mean in x86 assembly? In aarch64, LDADD would be used.
This support allows for faster alternatives to more general methods such as std::mutex
, which can make more complex multi-instruction sections atomic, at the cost of being slower than std::atomic
because std::mutex
it makes futex
system calls in Linux, which is way slower than the userland instructions emitted by std::atomic
, see also: Does std::mutex create a fence?
Let's consider the following multi-threaded program which increments a global variable across multiple threads, with different synchronization mechanisms depending on which preprocessor define is used.
main.cpp
#include <atomic>
#include <iostream>
#include <thread>
#include <vector>
size_t niters;
#if STD_ATOMIC
std::atomic_ulong global(0);
#else
uint64_t global = 0;
#endif
void threadMain() {
for (size_t i = 0; i < niters; ++i) {
#if LOCK
__asm__ __volatile__ (
"lock incq %0;"
: "+m" (global),
"+g" (i) // to prevent loop unrolling
:
:
);
#else
__asm__ __volatile__ (
""
: "+g" (i) // to prevent he loop from being optimized to a single add
: "g" (global)
:
);
global++;
#endif
}
}
int main(int argc, char **argv) {
size_t nthreads;
if (argc > 1) {
nthreads = std::stoull(argv[1], NULL, 0);
} else {
nthreads = 2;
}
if (argc > 2) {
niters = std::stoull(argv[2], NULL, 0);
} else {
niters = 10;
}
std::vector<std::thread> threads(nthreads);
for (size_t i = 0; i < nthreads; ++i)
threads[i] = std::thread(threadMain);
for (size_t i = 0; i < nthreads; ++i)
threads[i].join();
uint64_t expect = nthreads * niters;
std::cout << "expect " << expect << std::endl;
std::cout << "global " << global << std::endl;
}
Compile, run and disassemble:
comon="-ggdb3 -O3 -std=c++11 -Wall -Wextra -pedantic main.cpp -pthread"
g++ -o main_fail.out $common
g++ -o main_std_atomic.out -DSTD_ATOMIC $common
g++ -o main_lock.out -DLOCK $common
./main_fail.out 4 100000
./main_std_atomic.out 4 100000
./main_lock.out 4 100000
gdb -batch -ex "disassemble threadMain" main_fail.out
gdb -batch -ex "disassemble threadMain" main_std_atomic.out
gdb -batch -ex "disassemble threadMain" main_lock.out
Extremely likely "wrong" race condition output for main_fail.out
:
expect 400000
global 100000
and deterministic "right" output of the others:
expect 400000
global 400000
Disassembly of main_fail.out
:
0x0000000000002780 <+0>: endbr64
0x0000000000002784 <+4>: mov 0x29b5(%rip),%rcx # 0x5140 <niters>
0x000000000000278b <+11>: test %rcx,%rcx
0x000000000000278e <+14>: je 0x27b4 <threadMain()+52>
0x0000000000002790 <+16>: mov 0x29a1(%rip),%rdx # 0x5138 <global>
0x0000000000002797 <+23>: xor %eax,%eax
0x0000000000002799 <+25>: nopl 0x0(%rax)
0x00000000000027a0 <+32>: add $0x1,%rax
0x00000000000027a4 <+36>: add $0x1,%rdx
0x00000000000027a8 <+40>: cmp %rcx,%rax
0x00000000000027ab <+43>: jb 0x27a0 <threadMain()+32>
0x00000000000027ad <+45>: mov %rdx,0x2984(%rip) # 0x5138 <global>
0x00000000000027b4 <+52>: retq
Disassembly of main_std_atomic.out
:
0x0000000000002780 <+0>: endbr64
0x0000000000002784 <+4>: cmpq $0x0,0x29b4(%rip) # 0x5140 <niters>
0x000000000000278c <+12>: je 0x27a6 <threadMain()+38>
0x000000000000278e <+14>: xor %eax,%eax
0x0000000000002790 <+16>: lock addq $0x1,0x299f(%rip) # 0x5138 <global>
0x0000000000002799 <+25>: add $0x1,%rax
0x000000000000279d <+29>: cmp %rax,0x299c(%rip) # 0x5140 <niters>
0x00000000000027a4 <+36>: ja 0x2790 <threadMain()+16>
0x00000000000027a6 <+38>: retq
Disassembly of main_lock.out
:
Dump of assembler code for function threadMain():
0x0000000000002780 <+0>: endbr64
0x0000000000002784 <+4>: cmpq $0x0,0x29b4(%rip) # 0x5140 <niters>
0x000000000000278c <+12>: je 0x27a5 <threadMain()+37>
0x000000000000278e <+14>: xor %eax,%eax
0x0000000000002790 <+16>: lock incq 0x29a0(%rip) # 0x5138 <global>
0x0000000000002798 <+24>: add $0x1,%rax
0x000000000000279c <+28>: cmp %rax,0x299d(%rip) # 0x5140 <niters>
0x00000000000027a3 <+35>: ja 0x2790 <threadMain()+16>
0x00000000000027a5 <+37>: retq
Conclusions:
the non-atomic version saves the global to a register, and increments the register.
Therefore, at the end, very likely four writes happen back to global with the same "wrong" value of 100000
.
std::atomic
compiles to lock addq
. The LOCK prefix makes the following inc
fetch, modify and update memory atomically.
our explicit inline assembly LOCK prefix compiles to almost the same thing as std::atomic
, except that our inc
is used instead of add
. Not sure why GCC chose add
, considering that our INC generated a decoding 1 byte smaller.
ARMv8 could use either LDAXR + STLXR or LDADD in newer CPUs: How do I start threads in plain C?
Tested in Ubuntu 19.10 AMD64, GCC 9.2.1, Lenovo ThinkPad P51.
Two simple examples to capture output the pwd
command:
$ b=$(pwd)
$ echo $b
/home/user1
or
$ a=`pwd`
$ echo $a
/home/user1
The first way is preferred. Note that there can't be any spaces after the =
for this to work.
Example using a short script:
#!/bin/bash
echo "hi there"
then:
$ ./so.sh
hi there
$ a=$(so.sh)
$ echo $a
hi there
In general a more flexible approach would be to return an exit value from the command and use it for further processing, though sometimes we just may want to capture the simple output from a command.
In my particular project I couldn't get it to work, and used declare var $;
. Not a clean/recommended solution, it doesnt recognise the JQuery variables, but I had no errors after using that (and had to for my automatic builds to succeed).
You don't say which database you are using but in MS SQL Server it would be
WHERE DateField = {d '2008-12-20'}
If it is a timestamp field then you'll need a range:
WHERE DateField BETWEEN {ts '2008-12-20 00:00:00'} AND {ts '2008-12-20 23:59:59'}
Consider if your file is read only, then the extra parameters may help with FileStream
using (var fs = new FileStream(path, FileMode.Open, FileAccess.Read))
If you want to add a product into the array you can use:
$item['product'] = $product;
Your regex should work 'as-is'. Assuming that it is doing what you want it to.
wordA(\s*)wordB(?! wordc)
This means match wordA
followed by 0 or more spaces followed by wordB
, but do not match if followed by wordc
. Note the single space between ?!
and wordc
which means that wordA wordB wordc
will not match, but wordA wordB wordc
will.
Here are some example matches and the associated replacement output:
Note that all matches are replaced no matter how many spaces. There are a couple of other points: -
(?! wordc)
is a negative lookahead, so you wont match lines wordA wordB wordc
which is assume is intended (and is why the last line is not matched). Currently you are relying on the space after ?!
to match the whitespace. You may want to be more precise and use (?!\swordc)
. If you want to match against more than one space before wordc you can use (?!\s*wordc)
for 0 or more spaces or (?!\s*+wordc)
for 1 or more spaces depending on what your intention is.
Of course, if you do want to match lines with wordc after wordB then you shouldn't use a negative lookahead.
*
will match 0 or more spaces so it will match wordAwordB. You may want to consider +
if you want at least one space.
(\s*)
- the brackets indicate a capturing group. Are you capturing the whitespace to a group for a reason? If not you could just remove the brackets, i.e. just use \s
.
Update based on comment
Hello the problem is not the expression but the HTML out put that are not considered as whitespace. it's a Joomla website.
Preserving your original regex you can use:
wordA((?:\s| )*)wordB(?!(?:\s| )wordc)
The only difference is that not the regex matches whitespace OR
. I replaced wordc
with \swordc
since that is more explicit. Note as I have already pointed out that the negative lookahead ?!
will not match when wordB is followed by a single whitespace and wordc. If you want to match multiple whitespaces then see my comments above. I also preserved the capture group around the whitespace, if you don't want this then remove the brackets as already described above.
Example matches:
Try this step,
1)Open PowerShell
2)Write this command:
sqlcmd -S PCNAME\SQLEXPRESS -U user -P password -d databanse_name -i C:\script.sql
3)Press Return
:-)
cmd.Parameters.Add(String parameterName, Object value)
is deprecated now. Instead use cmd.Parameters.AddWithValue(String parameterName, Object value)
There is no difference in terms of functionality. The reason they deprecated the
cmd.Parameters.Add(String parameterName, Object value)
in favor ofAddWithValue(String parameterName, Object value)
is to give more clarity. Here is the MSDN reference for the same
private void button1_Click(object sender, EventArgs e) {
using (SqlConnection con = new SqlConnection(dc.Con)) {
using (SqlCommand cmd = new SqlCommand("sp_Add_contact", con)) {
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@FirstName", SqlDbType.VarChar).Value = txtFirstName.Text;
cmd.Parameters.AddWithValue("@LastName", SqlDbType.VarChar).Value = txtLastName.Text;
con.Open();
cmd.ExecuteNonQuery();
}
}
}
I've had success forcing the view to be ordered using
SELECT TOP 9999999 ... ORDER BY something
Unfortunately using SELECT TOP 100 PERCENT
does not work due the issue here.
The main reason why you see that error is nltk couldn't find punkt
package. Due to the size of nltk
suite, all available packages are not downloaded by default when one installs it.
You can download punkt
package like this.
import nltk
nltk.download('punkt')
from nltk import word_tokenize,sent_tokenize
If you do not pass any argument to the download
function, it downloads all packages i.e chunkers
, grammars
, misc
, sentiment
, taggers
, corpora
, help
, models
, stemmers
, tokenizers
.
nltk.download()
The above function saves packages to a specific directory. You can find that directory location from comments here. https://github.com/nltk/nltk/blob/67ad86524d42a3a86b1f5983868fd2990b59f1ba/nltk/downloader.py#L1051
You can use the package-manager tool to clear data for installed apps (similar to pressing the 'clear data' button in the app settings on your device). So using adb you could do:
adb shell pm clear my.wonderful.app.package
you can utilize useCallback hook to do this.
function Parent() {
const [name, setName] = useState("");
const getChildChange = useCallback( (updatedName) => {
setName(updatedName);
}, []);
return <div> {name} :
<Child getChildChange={getChildChange} ></Child>
</div>
}
function Child(props) {
const [name, setName] = useState("");
function handleChange(ele) {
setName(ele.target.value);
props.getChildChange(ele.target.value);
}
function collectState() {
return name;
}
return (<div>
<input onChange={handleChange} value={name}></input>
</div>);
}
var marker = [];
for ( var i = 0; i < 6; i++) {
marker[i]='Hello'+i;
}
console.log(marker);
alert(marker);
String[] is an array of Strings. Such an array is internally a class. Like all classes that don't explicitly extend some other class, it extends Object implicitly. The method toString()
of class Object, by default, gives you the representation you see: the class name, followed by @, followed by the hash code in hex. Since the String[] class doesn't override the toString() method, you get that as a result.
Create some method that outputs the array elements for you. Iterate over the array and use System.out.print()
(not print*ln*) on the elements.
Solved after 3 hours...
I am using WAMP (PHP 7.2.4), PostgreSQL 10, Laravel 5.6.29.
Loaded PHP extensions (pgsql, pdo_pgsql) from Wampserver 3.3, then I was able to connect to the PostgreSQL server with a simple php testcode from the www directory. But $ php artisan migrate
still returned
PDOException::("could not find driver")
I checked the shell (git bash for windows) with $ php --ini
, that returned C:\wamp64\bin\php\php7.2.4\php.ini instead of c:\wamp64\bin\apache\apache2.4.33\bin\php.ini, loaded by WAMP
So you have to uncomment pgsql and pdo_pgsql extensions also in C:\wamp64\bin\php\php7.2.4\php.ini, and then migrate will work ...
You can specify a custom class to the top element of the dialog via the option dialogClass
$("#success").dialog({
...
dialogClass:"myClass",
...
});
Then you can target this class in CSS via .myClass.ui-dialog
.