userCookie.Expires.AddDays(365);
This line of code doesn't do anything. It is the equivalent of:
DateTime temp = userCookie.Expires.AddDays(365);
//do nothing with temp
You probably want
userCookie.Expires = DateTime.Now.AddDays(365);
Edit : Updated the code zstring_remove_chr()
according to the latest version of the library.
From a BSD licensed string processing library for C, called zString
https://github.com/fnoyanisi/zString
Function to remove a character
int zstring_search_chr(char *token,char s){
if (!token || s=='\0')
return 0;
for (;*token; token++)
if (*token == s)
return 1;
return 0;
}
char *zstring_remove_chr(char *str,const char *bad) {
char *src = str , *dst = str;
/* validate input */
if (!(str && bad))
return NULL;
while(*src)
if(zstring_search_chr(bad,*src))
src++;
else
*dst++ = *src++; /* assign first, then incement */
*dst='\0';
return str;
}
Exmaple Usage
char s[]="this is a trial string to test the function.";
char *d=" .";
printf("%s\n",zstring_remove_chr(s,d));
Example Output
thisisatrialstringtotestthefunction
Yes, the garbage collector will remove them as well. Might not always be the case with legacy browsers though.
Most likely you should use CopyWebpackPlugin which was mentioned in kevlened answer. Alternativly for some kind of files like .html or .json you can also use raw-loader or json-loader. Install it via npm install -D raw-loader
and then what you only need to do is to add another loader to our webpack.config.js
file.
Like:
{
test: /\.html/,
loader: 'raw'
}
Note: Restart the webpack-dev-server for any config changes to take effect.
And now you can require html files using relative paths, this makes it much easier to move folders around.
template: require('./nav.html')
The answers provided above are good but let me just chip in, useState
is async so if your next state is dependent on your previous state it is best you pass useState
a callback. See the example below:
import { useState } from 'react';
function Example() {
const [count, setCount] = useState(0);
return (
<div>
<p>You clicked {count} times</p>
// passing a callback to useState to update count
<button onClick={() => setCount(count => count + 1)}>
Click me
</button>
</div>
);
}
This is the recommended way if your new state depends on computation from the old state.
The solution depends on the relation between the git ignore rule and the exception rule:
Files/Files in different levels or Files/Subfolders: you can do this:
*.suo
*.user
*.userosscache
*.sln.docstates
# ...
# Exceptions for entire subfolders
!SetupFiles/elasticsearch-5.0.0/**/*
!SetupFiles/filebeat-5.0.0-windows-x86_64/**/*
# Exceptions for files in different levels
!SetupFiles/kibana-5.0.0-windows-x86/**/*.suo
!SetupFiles/logstash-5.0.0/**/*.suo
The command ./manage.py sqlclear
or ./manage.py sqlflush
seems to clear the table and not delete them, however if you want to delete the complete database try this : manage.py flush
.
Warning: this will delete your database completely and you will lose all your data, so if that not important go ahead and try it.
IE 8 doesn't have indexOf function, so I used jQuery inArray instead.
$('input').datepicker({
beforeShowDay: function(date){
var string = jQuery.datepicker.formatDate('yy-mm-dd', date);
return [$.inArray(string, array) == -1];
}
});
You can use hidden submit button and click it using java script/jquery like this:
<form id="contactForm" method="post" class="contact-form">
<button type="submit" id="submitBtn" style="display:none;" data-validate="contact-form">Hidden Button</button>
<a href="javascript:;" class="myClass" onclick="$('#submitBtn').click();">Submit</a>
</form>
This XPath:
count(//Property[long = '11007'])
returns the same value as:
count(//Property/long[text() = '11007'])
...except that the first counts Property
nodes that match the criterion and the second counts long
child nodes that match the criterion.
As per your comment and reading your question a couple of times, I believe that you want to find uniqueness based on a combination of criteria. Therefore, in actuality, I think you are actually checking multiple conditions. The following would work as well:
count(//Property[@Name = 'Alive'][long = '11007'])
because it means the same thing as:
count(//Property[@Name = 'Alive' and long = '11007'])
Of course, you would substitute the values for parameters in your template. The above code only illustrates the point.
EDIT (after question edit)
You were quite right about the XML being horrible. In fact, this is a downright CodingHorror candidate! I had to keep recounting to keep track of the "Property" node I was on presently. I feel your pain!
Here you go:
count(/root/ac/Properties/Property[Properties/Property/Properties/Property/long = $parPropId])
Note that I have removed all the other checks (for ID and Value). They appear not to be required since you are able to arrive at the relevant node using the hierarchy in the XML. Also, you already mentioned that the check for uniqueness is based only on the contents of the long
element.
Create view Schema1.viewName1 as (select * from plaplapla)
Schema1
has all the tables
Create view Schema2.viewName2 as (select * from schema1.viewName1)
schema2
has no tables(only views schema)
In this case you can execute (select * from viewName2
) in schema2 , BUT .. If you deleted viewNmae1 from Schema1
, Then ViewName2
will not work..
Amani El Gamal [email protected]
I strongly recommend you learn how to use layout managers to get the layout you want to see. null
layouts are fragile, and cause no end of trouble.
Try this source & check the comments.
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
public class VolumeCalculator extends JFrame implements ActionListener {
private JTabbedPane jtabbedPane;
private JPanel options;
JTextField poolLengthText, poolWidthText, poolDepthText, poolVolumeText, hotTub,
hotTubLengthText, hotTubWidthText, hotTubDepthText, hotTubVolumeText, temp, results,
myTitle;
JTextArea labelTubStatus;
public VolumeCalculator(){
setSize(400, 250);
setVisible(true);
setSize(400, 250);
setVisible(true);
setTitle("Volume Calculator");
setSize(300, 200);
JPanel topPanel = new JPanel();
topPanel.setLayout(new BorderLayout());
getContentPane().add(topPanel);
createOptions();
jtabbedPane = new JTabbedPane();
jtabbedPane.addTab("Options", options);
topPanel.add(jtabbedPane, BorderLayout.CENTER);
}
/* CREATE OPTIONS */
public void createOptions(){
options = new JPanel();
//options.setLayout(null);
JLabel labelOptions = new JLabel("Change Company Name:");
labelOptions.setBounds(120, 10, 150, 20);
options.add(labelOptions);
JTextField newTitle = new JTextField("Some Title");
//newTitle.setBounds(80, 40, 225, 20);
options.add(newTitle);
myTitle = new JTextField(20);
// myTitle WAS NEVER ADDED to the GUI!
options.add(myTitle);
//myTitle.setBounds(80, 40, 225, 20);
//myTitle.add(labelOptions);
JButton newName = new JButton("Set New Name");
//newName.setBounds(60, 80, 150, 20);
newName.addActionListener(this);
options.add(newName);
JButton Exit = new JButton("Exit");
//Exit.setBounds(250, 80, 80, 20);
Exit.addActionListener(this);
options.add(Exit);
}
public void actionPerformed(ActionEvent event){
JButton button = (JButton) event.getSource();
String buttonLabel = button.getText();
if ("Exit".equalsIgnoreCase(buttonLabel)){
Exit_pressed();
return;
}
if ("Set New Name".equalsIgnoreCase(buttonLabel)){
New_Name();
return;
}
}
private void Exit_pressed(){
System.exit(0);
}
private void New_Name(){
System.out.println("'" + myTitle.getText() + "'");
this.setTitle(myTitle.getText());
}
private void Options(){
}
public static void main(String[] args){
JFrame frame = new VolumeCalculator();
frame.pack();
frame.setSize(380, 350);
frame.setVisible(true);
}
}
If you posting form using ajax then you can not send image using $.ajax method, you have to use classic xmlHttpobject method for saving image, other alternative of it use submit type instead of button
Add port number (something like 3306) in:
Connection c = DriverManager.getConnection("jdbc:mysql://localhost:urport","root","root");
I had problem with encoding cyrillic letters to URF-8.
I modified one of the above scripts to match cyrillic char map. Implmented is the cyrrilic section of
https://en.wikipedia.org/wiki/UTF-8 and http://www.utf8-chartable.de/unicode-utf8-table.pl?start=1024
Other sections development is sample and need verification with real data and calculate the char map offsets
Here is the script:
Public Function UTF8Encode( _
StringToEncode As String, _
Optional UsePlusRatherThanHexForSpace As Boolean = False _
) As String
Dim TempAns As String
Dim TempChr As Long
Dim CurChr As Long
Dim Offset As Long
Dim TempHex As String
Dim CharToEncode As Long
Dim TempAnsShort As String
CurChr = 1
Do Until CurChr - 1 = Len(StringToEncode)
CharToEncode = Asc(Mid(StringToEncode, CurChr, 1))
' http://www.utf8-chartable.de/unicode-utf8-table.pl?start=1024
' as per https://en.wikipedia.org/wiki/UTF-8 specification the engoding is as follows
Select Case CharToEncode
' 7 U+0000 U+007F 1 0xxxxxxx
Case 48 To 57, 65 To 90, 97 To 122
TempAns = TempAns & Mid(StringToEncode, CurChr, 1)
Case 32
If UsePlusRatherThanHexForSpace = True Then
TempAns = TempAns & "+"
Else
TempAns = TempAns & "%" & Hex(32)
End If
Case 0 To &H7F
TempAns = TempAns + "%" + Hex(CharToEncode And &H7F)
Case &H80 To &H7FF
' 11 U+0080 U+07FF 2 110xxxxx 10xxxxxx
' The magic is in offset calculation... there are different offsets between UTF-8 and Windows character maps
' offset 192 = &HC0 = 1100 0000 b added to start of UTF-8 cyrillic char map at &H410
CharToEncode = CharToEncode - 192 + &H410
TempAnsShort = "%" & Right("0" & Hex((CharToEncode And &H3F) Or &H80), 2)
TempAnsShort = "%" & Right("0" & Hex(((CharToEncode \ &H40) And &H1F) Or &HC0), 2) & TempAnsShort
TempAns = TempAns + TempAnsShort
'' debug and development version
'' CharToEncode = CharToEncode - 192 + &H410
'' TempChr = (CharToEncode And &H3F) Or &H80
'' TempHex = Hex(TempChr)
'' TempAnsShort = "%" & Right("0" & TempHex, 2)
'' TempChr = ((CharToEncode And &H7C0) / &H40) Or &HC0
'' TempChr = ((CharToEncode \ &H40) And &H1F) Or &HC0
'' TempHex = Hex(TempChr)
'' TempAnsShort = "%" & Right("0" & TempHex, 2) & TempAnsShort
'' TempAns = TempAns + TempAnsShort
Case &H800 To &HFFFF
' 16 U+0800 U+FFFF 3 1110xxxx 10xxxxxx 10xxxxxx
' not tested . Doesnot match Case condition... very strange
MsgBox ("Char to encode matched U+0800 U+FFFF: " & CharToEncode & " = &H" & Hex(CharToEncode))
'' CharToEncode = CharToEncode - 192 + &H410
TempAnsShort = "%" & Right("0" & Hex((CharToEncode And &H3F) Or &H80), 2)
TempAnsShort = "%" & Right("0" & Hex(((CharToEncode \ &H40) And &H3F) Or &H80), 2) & TempAnsShort
TempAnsShort = "%" & Right("0" & Hex(((CharToEncode \ &H1000) And &HF) Or &HE0), 2) & TempAnsShort
TempAns = TempAns + TempAnsShort
Case &H10000 To &H1FFFFF
' 21 U+10000 U+1FFFFF 4 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
'' MsgBox ("Char to encode matched &H10000 &H1FFFFF: " & CharToEncode & " = &H" & Hex(CharToEncode))
' sample offset. tobe verified
CharToEncode = CharToEncode - 192 + &H410
TempAnsShort = "%" & Right("0" & Hex((CharToEncode And &H3F) Or &H80), 2)
TempAnsShort = "%" & Right("0" & Hex(((CharToEncode \ &H40) And &H3F) Or &H80), 2) & TempAnsShort
TempAnsShort = "%" & Right("0" & Hex(((CharToEncode \ &H1000) And &H3F) Or &H80), 2) & TempAnsShort
TempAnsShort = "%" & Right("0" & Hex(((CharToEncode \ &H40000) And &H7) Or &HF0), 2) & TempAnsShort
TempAns = TempAns + TempAnsShort
Case &H200000 To &H3FFFFFF
' 26 U+200000 U+3FFFFFF 5 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
'' MsgBox ("Char to encode matched U+200000 U+3FFFFFF: " & CharToEncode & " = &H" & Hex(CharToEncode))
' sample offset. tobe verified
CharToEncode = CharToEncode - 192 + &H410
TempAnsShort = "%" & Right("0" & Hex((CharToEncode And &H3F) Or &H80), 2)
TempAnsShort = "%" & Right("0" & Hex(((CharToEncode \ &H40) And &H3F) Or &H80), 2) & TempAnsShort
TempAnsShort = "%" & Right("0" & Hex(((CharToEncode \ &H1000) And &H3F) Or &H80), 2) & TempAnsShort
TempAnsShort = "%" & Right("0" & Hex(((CharToEncode \ &H40000) And &H3F) Or &H80), 2) & TempAnsShort
TempAnsShort = "%" & Right("0" & Hex(((CharToEncode \ &H1000000) And &H3) Or &HF8), 2) & TempAnsShort
TempAns = TempAns + TempAnsShort
Case &H4000000 To &H7FFFFFFF
' 31 U+4000000 U+7FFFFFFF 6 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
'' MsgBox ("Char to encode matched U+4000000 U+7FFFFFFF: " & CharToEncode & " = &H" & Hex(CharToEncode))
' sample offset. tobe verified
CharToEncode = CharToEncode - 192 + &H410
TempAnsShort = "%" & Right("0" & Hex((CharToEncode And &H3F) Or &H80), 2)
TempAnsShort = "%" & Right("0" & Hex(((CharToEncode \ &H40) And &H3F) Or &H80), 2) & TempAnsShort
TempAnsShort = "%" & Right("0" & Hex(((CharToEncode \ &H1000) And &H3F) Or &H80), 2) & TempAnsShort
TempAnsShort = "%" & Right("0" & Hex(((CharToEncode \ &H40000) And &H3F) Or &H80), 2) & TempAnsShort
TempAnsShort = "%" & Right("0" & Hex(((CharToEncode \ &H1000000) And &H3F) Or &H80), 2) & TempAnsShort
TempAnsShort = "%" & Right("0" & Hex(((CharToEncode \ &H40000000) And &H1) Or &HFC), 2) & TempAnsShort
TempAns = TempAns + TempAnsShort
Case Else
' somethig else
' to be developped
MsgBox ("Char to encode not matched: " & CharToEncode & " = &H" & Hex(CharToEncode))
End Select
CurChr = CurChr + 1
Loop
UTF8Encode = TempAns
End Function
Good luck!
This validates dd/mm/yyy dates. Edit your jquery.validate.js and add these.
Reference(Regex): Regex to validate date format dd/mm/yyyy
dateBR: function( value, element ) {
return this.optional(element) || /^(?:(?:31(\/|-|\.)(?:0?[13578]|1[02]))\1|(?:(?:29|30)(\/|-|\.)(?:0?[1,3-9]|1[0-2])\2))(?:(?:1[6-9]|[2-9]\d)?\d{2})$|^(?:29(\/|-|\.)0?2\3(?:(?:(?:1[6-9]|[2-9]\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00))))$|^(?:0?[1-9]|1\d|2[0-8])(\/|-|\.)(?:(?:0?[1-9])|(?:1[0-2]))\4(?:(?:1[6-9]|[2-9]\d)?\d{2})$/.test(value);
}
messages: {
dateBR: "Invalid date."
}
classRuleSettings: {
dateBR: {dateBR: true}
}
Usage:
$( "#myForm" ).validate({
rules: {
field: {
dateBR: true
}
}
});
Use String.valueOf():
int sdRate=5;
//text_Rate is a TextView
text_Rate.setText(String.valueOf(sdRate)); //no more errors
Line Comment hold both: Cmd + /
Block Comment hold all three: Cmd + Alt + /
Line Comment hold both: Cmd + + =
Block Comment hold all three: Cmd + Alt + + =
Line Comment hold both: Ctrl + /
Block Comment hold all three: Ctrl + Shift + /
Same way to remove the comment block.
To Provide Method Documentation comment type /**
and press Enter just above the method name (
It will create a block comment with parameter list and return type like this
/**
* @param userId
* @return
*/
public int getSubPlayerCountForUser(String userId){}
You can use .sortBy
, it will always return an ascending list:
_.sortBy([2, 3, 1], function(num) {
return num;
}); // [1, 2, 3]
But you can use the .reverse method to get it descending:
var array = _.sortBy([2, 3, 1], function(num) {
return num;
});
console.log(array); // [1, 2, 3]
console.log(array.reverse()); // [3, 2, 1]
Or when dealing with numbers add a negative sign to the return to descend the list:
_.sortBy([-3, -2, 2, 3, 1, 0, -1], function(num) {
return -num;
}); // [3, 2, 1, 0, -1, -2, -3]
Under the hood .sortBy
uses the built in .sort([handler])
:
// Default is ascending:
[2, 3, 1].sort(); // [1, 2, 3]
// But can be descending if you provide a sort handler:
[2, 3, 1].sort(function(a, b) {
// a = current item in array
// b = next item in array
return b - a;
});
Here's a concrete example:
Suppose you have a function that calculates the gravitational force acting on an object. If you don't know the formula, you can find it here. This function takes in the three necessary parameters as arguments.
Now, being on the earth, you only want to calculate forces for objects on this planet. In a functional language, you could pass in the mass of the earth to the function and then partially evaluate it. What you'd get back is another function that takes only two arguments and calculates the gravitational force of objects on earth. This is called currying.
I eventually stumbled upon an example of the usage I was looking for - to assign an error to the Model in general, rather than one of it's properties, as usual you call:
ModelState.AddModelError(string key, string errorMessage);
but use an empty string for the key:
ModelState.AddModelError(string.Empty, "There is something wrong with Foo.");
The error message will present itself in the <%: Html.ValidationSummary() %>
as you'd expect.
Try:
awk -F',' '{print $3}' myfile.txt
Here in -F you are saying to awk that use "," as field separator.
dgg
will delete everything from your current line to the top of the file.
d
is the deletion command, and gg
is a movement command that says go to the top of the file, so when used together, it means delete from my current position to the top of the file.
Also
dG
will delete all lines at or below the current one
If the content is a variable, it will be necessary to concatenate it with quotation marks. It worked for me. Like this:
itemSelected(id: number){ console.log('label contains', document.querySelector("label[for='" + id + "']")); }
We've solved this, although we didn't think having the addListener outside of the for would make any difference, it seems to. Here's the answer:
Create a new function with your information for the infoWindow in it:
function addInfoWindow(marker, message) {
var infoWindow = new google.maps.InfoWindow({
content: message
});
google.maps.event.addListener(marker, 'click', function () {
infoWindow.open(map, marker);
});
}
Then call the function with the array ID and the marker you want to create:
addInfoWindow(marker, hotels[i][3]);
You can scroll to the bottom of the last item, if the height of the last item is too large, you need to offset
private void scrollToBottom(final RecyclerView recyclerView) {
// scroll to last item to get the view of last item
final LinearLayoutManager layoutManager = (LinearLayoutManager) recyclerView.getLayoutManager();
final RecyclerView.Adapter adapter = recyclerView.getAdapter();
final int lastItemPosition = adapter.getItemCount() - 1;
layoutManager.scrollToPositionWithOffset(lastItemPosition, 0);
recyclerView.post(new Runnable() {
@Override
public void run() {
// then scroll to specific offset
View target = layoutManager.findViewByPosition(lastItemPosition);
if (target != null) {
int offset = recyclerView.getMeasuredHeight() - target.getMeasuredHeight();
layoutManager.scrollToPositionWithOffset(lastItemPosition, offset);
}
}
});
}
you can do this with this plugin http://dev.andreaseberhard.de/jquery/superbgimage/
or
background-image:url(../IMAGES/background.jpg);
background-repeat:no-repeat;
background-size:cover;
with no need the prefixes of browsers. it's all ready suporterd in both of browers
I used
Directory.GetFiles(picturePath).ToList().ForEach(File.Delete);
for delete old picture and I don't need any object in this folder
As MRA said, you shouldn't try to dodge a 429 Too Many Requests
but instead handle it accordingly. You have several options depending on your use-case:
1) Sleep your process. The server usually includes a Retry-after
header in the response with the number of seconds you are supposed to wait before retrying. Keep in mind that sleeping a process might cause problems, e.g. in a task queue, where you should instead retry the task at a later time to free up the worker for other things.
2) Exponential backoff. If the server does not tell you how long to wait, you can retry your request using increasing pauses in between. The popular task queue Celery has this feature built right-in.
3) Token bucket. This technique is useful if you know in advance how many requests you are able to make in a given time. Each time you access the API you first fetch a token from the bucket. The bucket is refilled at a constant rate. If the bucket is empty, you know you'll have to wait before hitting the API again. Token buckets are usually implemented on the other end (the API) but you can also use them as a proxy to avoid ever getting a 429 Too Many Requests
. Celery's rate_limit feature uses a token bucket algorithm.
Here is an example of a Python/Celery app using exponential backoff and rate-limiting/token bucket:
class TooManyRequests(Exception):
"""Too many requests"""
@task(
rate_limit='10/s',
autoretry_for=(ConnectTimeout, TooManyRequests,),
retry_backoff=True)
def api(*args, **kwargs):
r = requests.get('placeholder-external-api')
if r.status_code == 429:
raise TooManyRequests()
SELECT * FROM Accounts WHERE Username LIKE '%$query%'
but it's not suggested. use PDO
I think you're looking for the .prepend function in jQuery. Example code:
$("#E").prepend("<p>Code goes here, yo!</p>");
List<String> lista =new ArrayList<String>();
List<String> listb =new ArrayList<String>();
lista.add("Isabella");
lista.add("Angelina");
lista.add("Pille");
lista.add("Hazem");
listb.add("Isabella");
listb.add("Angelina");
listb.add("Bianca");
// Create an aplusb list which will contain both list (list1 and list2) in which common element will occur twice
List<String> listapluslistb =new ArrayList<String>(lista);
listapluslistb.addAll(listb);
// Create an aunionb set which will contain both list (list1 and list2) in which common element will occur once
Set<String> listaunionlistb =new HashSet<String>(lista);
listaunionlistb.addAll(listb);
for(String s:listaunionlistb)
{
listapluslistb.remove(s);
}
System.out.println(listapluslistb);
You can create a constructor using parameter Context of class A then you can use this context.
Context c;
A(Context context){ this.c=context }
From B activity you create a object of class A using this constructor and passing getApplicationContext().
To avoid the Save prompt message, you have to insert those lines
Application.DisplayAlerts = False
ThisWorkbook.Save
Application.DisplayAlerts = True
After saving your work, you need to use this line to quit the Excel application
Application.Quit
Don't just simply put those line in Private Sub Workbook_Open() unless you got do a correct condition checking, else you may spoil your excel file.
For safety purpose, please create a module to run it. The following are the codes that i put:
Sub testSave()
Application.DisplayAlerts = False
ThisWorkbook.Save
Application.DisplayAlerts = True
Application.Quit
End Sub
Hope it help you solve the problem.
Try:
$a1=@(1,2,3,4,5)
$b1=@(1,2,3,4,5,6)
(Compare-Object $a1 $b1).InputObject
Or, you can use:
(Compare-Object $b1 $a1).InputObject
The order doesn't matter.
I had a NavLink that I wanted to when clicked will scroll to that element like named anchor does. I implemented it this way.
<NavLink onClick={() => this.scrollToHref('plans')}>Our Plans</NavLink>
scrollToHref = (element) =>{
let node;
if(element === 'how'){
node = ReactDom.findDOMNode(this.refs.how);
console.log(this.refs)
}else if(element === 'plans'){
node = ReactDom.findDOMNode(this.refs.plans);
}else if(element === 'about'){
node = ReactDom.findDOMNode(this.refs.about);
}
node.scrollIntoView({block: 'start', behavior: 'smooth'});
}
I then give the component I wanted to scroll to a ref like this
<Investments ref="plans"/>
we can create a class to pass more than one key or value and the object of this class can be used as a parameter in map.
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.*;
public class key1 {
String b;
String a;
key1(String a,String b)
{
this.a=a;
this.b=b;
}
}
public class read2 {
private static final String FILENAME = "E:/studies/JAVA/ReadFile_Project/nn.txt";
public static void main(String[] args) {
BufferedReader br = null;
FileReader fr = null;
Map<key1,String> map=new HashMap<key1,String>();
try {
fr = new FileReader(FILENAME);
br = new BufferedReader(fr);
String sCurrentLine;
br = new BufferedReader(new FileReader(FILENAME));
while ((sCurrentLine = br.readLine()) != null) {
String[] s1 = sCurrentLine.split(",");
key1 k1 = new key1(s1[0],s1[2]);
map.put(k1,s1[2]);
}
for(Map.Entry<key1,String> m:map.entrySet()){
key1 key = m.getKey();
String s3 = m.getValue();
System.out.println(key.a+","+key.b+" : "+s3);
}
// }
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (br != null)
br.close();
if (fr != null)
fr.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
}
Many of the answers here are suggesting implementing variant types using "Classical Object-Oriented Decomposition". That is, anything which might be needed on one of the variants has to be declared at the base of the hierarchy. I submit that this is a type-safe, but often very bad, approach. You either end up exposing all internal properties of all the different variants (most of which are "invalid" for each particular variant) or you end up cluttering the API of the hierarchy with tons of procedural methods (which means you have to recompile every time a new procedure is dreamed up).
I hesitate to do this, but here is a shameless plug for a blog post I wrote that outlines about 8 ways to do variant types in Java. They all suck, because Java sucks at variant types. So far the only JVM language that gets it right is Scala.
http://jazzjuice.blogspot.com/2010/10/6-things-i-hate-about-java-or-scala-is.html
The Scala creators actually wrote a paper about three of the eight ways. If I can track it down, I'll update this answer with a link.
UPDATE: found it here.
A tuple is immutable and thus you get the error you posted.
>>> pixels = [1, 2, 3]
>>> pixels[0] = 5
>>> pixels = (1, 2, 3)
>>> pixels[0] = 5
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'tuple' object does not support item assignment
In your specific case, as correctly pointed out in other answers, you should write:
pixel = (pixel[0] + 20, pixel[1], pixel[2])
Instead of using width
(which is a suggestion when using flexbox), you could use flex: 0 0 230px;
which means:
0
= don't grow (shorthand for flex-grow
)0
= don't shrink (shorthand for flex-shrink
)230px
= start at 230px
(shorthand for flex-basis
)which means: always be 230px
.
See fiddle, thanks @TylerH
Oh, and you don't need the justify-content
and align-items
here.
img {
max-width: 100%;
}
#container {
display: flex;
x-justify-content: space-around;
x-align-items: stretch;
max-width: 1200px;
}
.column.left {
width: 230px;
flex: 0 0 230px;
}
.column.right {
width: 230px;
flex: 0 0 230px;
border-left: 1px solid #eee;
}
.column.center {
border-left: 1px solid #eee;
}
For those who use Bootstrap 3, it has a great CSS class to do the job:
<img src="..." class="img-circle">
I know this says command line, but just a tidbit of something quick to try that might work, if you've got MySQL workbench and the csv isn't too large, you can simply
I say hope for the best because this is MySQL Workbench. You never know when it's going to explode
If you want to do this on a remote server, you would do
mysql -h<server|ip> -u<username> -p --local-infile bark -e "LOAD DATA LOCAL INFILE '<filename.csv>' INTO TABLE <table> FIELDS TERMINATED BY ',' LINES TERMINATED BY '\n'"
Note, I didn't put a password after -p
as putting one on the command line is considered bad practice
Using root, try something like this:
/etc/init.d/memcached restart
@jim mcnamara: try using parentheses for around NF
, i. e. $(NF-1)
and $(NF)
instead of $NF-1
and $NF
(works on Mac OS X 10.6.8 for FreeBSD awk
and gawk
).
echo '
1 2
2 3
one
one two three
' | gawk '{if (NF >= 2) print $(NF-1), $(NF);}'
# output:
# 1 2
# 2 3
# two three
Cell spacing and margin is the space between cells.
Cell padding is space inside cells, between the cell border (even if invisible) and the cell content, such as text.
SOAP uses WSDL for communication btw consumer and provider, whereas REST just uses XML or JSON to send and receive data
WSDL defines contract between client and service and is static by its nature. In case of REST contract is somewhat complicated and is defined by HTTP, URI, Media Formats and Application Specific Coordination Protocol. It's highly dynamic unlike WSDL.
SOAP doesn't return human readable result, whilst REST result is readable with is just plain XML or JSON
This is not true. Plain XML or JSON are not RESTful at all. None of them define any controls(i.e. links and link relations, method information, encoding information etc...) which is against REST as far as messages must be self contained and coordinate interaction between agent/client and service.
With links + semantic link relations clients should be able to determine what is next interaction step and follow these links and continue communication with service.
It is not necessary that messages be human readable, it's possible to use cryptic format and build perfectly valid REST applications. It doesn't matter whether message is human readable or not.
Thus, plain XML(application/xml) or JSON(application/json) are not sufficient formats for building REST applications. It's always reasonable to use subset of these generic media types which have strong semantic meaning and offer enough control information(links etc...) to coordinate interactions between client and server.
REST is over only HTTP
Not true, HTTP is most widely used and when we talk about REST web services we just assume HTTP. HTTP defines interface with it's methods(GET, POST, PUT, DELETE, PATCH etc) and various headers which can be used uniformly for interacting with resources. This uniformity can be achieved with other protocols as well.
P.S. Very simple, yet very interesting explanation of REST: http://www.looah.com/source/view/2284
Some other things I found out:
You can't directly pass in an array like:
this.Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "xx",
"<script>test("+x+","+y+");</script>");
because that calls the ToString() methods of x and y, which returns "System.Int32[]", and obviously Javascript can't use that. I had to pass in the arrays as strings, like "[1,2,3,4,5]", so I wrote a helper method to do the conversion.
Also, there is a difference between this.Page.ClientScript.RegisterStartupScript() and this.Page.ClientScript.RegisterClientScriptBlock() - the former places the script at the bottom of the page, which I need in order to be able to access the controls (like with document.getElementByID). RegisterClientScriptBlock() is executed before the tags are rendered, so I actually get a Javascript error if I use that method.
http://www.wrox.com/WileyCDA/Section/Manipulating-ASP-NET-Pages-and-Server-Controls-with-JavaScript.id-310803.html covers the difference between the two pretty well.
Here's the complete example I came up with:
// code behind
protected void Button1_Click(object sender, EventArgs e)
{
int[] x = new int[] { 1, 2, 3, 4, 5 };
int[] y = new int[] { 1, 2, 3, 4, 5 };
string xStr = getArrayString(x); // converts {1,2,3,4,5} to [1,2,3,4,5]
string yStr = getArrayString(y);
string script = String.Format("test({0},{1})", xStr, yStr);
this.Page.ClientScript.RegisterStartupScript(this.GetType(),
"testFunction", script, true);
//this.Page.ClientScript.RegisterClientScriptBlock(this.GetType(),
//"testFunction", script, true); // different result
}
private string getArrayString(int[] array)
{
StringBuilder sb = new StringBuilder();
for (int i = 0; i < array.Length; i++)
{
sb.Append(array[i] + ",");
}
string arrayStr = string.Format("[{0}]", sb.ToString().TrimEnd(','));
return arrayStr;
}
//aspx page
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
<script type="text/javascript">
function test(x, y)
{
var text1 = document.getElementById("text1")
for(var i = 0; i<x.length; i++)
{
text1.innerText += x[i]; // prints 12345
}
text1.innerText += "\ny: " + y; // prints y: 1,2,3,4,5
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Button ID="Button1" runat="server" Text="Button"
onclick="Button1_Click" />
</div>
<div id ="text1">
</div>
</form>
</body>
</html>
I'm not sure how much of your "slowness" will be due to the loop you're doing to find entries with particular attribute values, but you can remove this loop by being more specific with your filter. Try this page for some guidance ... Search Filter Syntax
You should just include header file(s).
If you include header file, header file automatically finds .cpp file. --> This process is done by LINKER.
The datasource is by default .\SQLEXPRESS (its the instance where databases are placed by default) or if u changed the name of the instance during installation of sql server so i advise you to do this :
connectionString="Data Source=.\\yourInstance(defaulT Data source is SQLEXPRESS);
Initial Catalog=databaseName;
User ID=theuser if u use it;
Password=thepassword if u use it;
integrated security=true(if u don t use user and pass; else change it false)"
Without to knowing your instance, I could help with this one. Hope it helped
With bs4 4.7.1+ you can use :contains pseudo class to specify the td containing your search string
from bs4 import BeautifulSoup
html = '''
<tr>
<td class="pos">\n
"Some text:"\n
<br>\n
<strong>some value</strong>\n
</td>
</tr>
<tr>
<td class="pos">\n
"Fixed text:"\n
<br>\n
<strong>text I am looking for</strong>\n
</td>
</tr>
<tr>
<td class="pos">\n
"Some other text:"\n
<br>\n
<strong>some other value</strong>\n
</td>
</tr>'''
soup = bs(html, 'lxml')
print(soup.select_one('td:contains("Fixed text:")'))
Old thread, but I haven't found my way of doing it. It might be valuable for someone who works with rebase and wants to merge all the commits from a (feature) branch on top of master. If there is a conflict on the way, you can resolve them for every commit. You keep full control during the process and can abort any time.
Get Master and Branch up-to-date:
git checkout master
git pull --rebase origin master
git checkout <branch_name>
git pull --rebase origin <branch_name>
Merge Branch on top of Master:
git checkout <branch_name>
git rebase master
Optional: If you run into Conflicts during the Rebase:
First, resolve conflict in file. Then:
git add .
git rebase --continue
Push your rebased Branch:
git push origin <branch_name>
Now you've got two options:
git checkout master
git merge --no-ff <branch_name>
git push origin master
Done.
Since version 2.1 of the Maven Dependency Plugin, there is a dependency:get goal for this purpose. To make sure you are using the right version of the plugin, you'll need to use the "fully qualified name":
mvn org.apache.maven.plugins:maven-dependency-plugin:2.1:get \ -DrepoUrl=http://download.java.net/maven/2/ \ -Dartifact=robo-guice:robo-guice:0.4-SNAPSHOT
First, I strongly suggest to use a Library or Framework to do your Javascript. But just for something very very simple, or for the fun to learn, it is ok. (you can use jquery, underscore, knockoutjs, angular)
Second, it is not advised to bind directly to onclick, my first suggestion goes in that way too.
That's said What you need is to modify the src of a img in your page.
In the place where you want your image displayed, you should insert a img tag like this:
Next, you need to modify the onclick to update the src attribute. The easiest way I can think of is like his
onclick=""document.getElementById('image-placeholder').src = 'http://webpage.com/images/' + document.getElementById('imagename').value + '.png"
Then again, it is not the best way to do it, but it is a start. I recommend you to try jQuery and see how can you accomplish the same whitout using onclick (tip... check the section on jquery about events)
I did a simple fiddle as a example of your poblem using some google logos... type 4 o 3 in the box and you'll two images of different size. (sorry.. I have no time to search for better images as example)
JavaScript Code
//this function is used to fire click event
function eventFire(el, etype){
if (el.fireEvent) {
el.fireEvent('on' + etype);
} else {
var evObj = document.createEvent('Events');
evObj.initEvent(etype, true, false);
el.dispatchEvent(evObj);
}
}
function showPdf(){
eventFire(document.getElementById('picToClick'), 'click');
}
HTML Code
<img id="picToClick" data-toggle="modal" data-target="#pdfModal" src="img/Adobe-icon.png" ng-hide="1===1">
<button onclick="showPdf()">Click me</button>
In Genexus You can made with Regex
&pattern = '<[^>]+>'
&TSTRPNOT=&TSTRPNOT.ReplaceRegEx(&pattern,"")
In Genexus possiamo gestirlo con Regex,
System.out.println(System.getProperty("java.vendor"));
System.out.println(System.getProperty("java.vendor.url"));
System.out.println(System.getProperty("java.version"));
Sun Microsystems Inc.
http://java.sun.com/
1.6.0_11
http://docs.oracle.com/javase/tutorial/essential/environment/sysprop.html
yum install php-mbstring (as per http://php.net/manual/en/mbstring.installation.php)
I think you have to install the EPEL repository http://fedoraproject.org/wiki/EPEL
For null values in the dataframe of pyspark
Dict_Null = {col:df.filter(df[col].isNull()).count() for col in df.columns}
Dict_Null
# The output in dict where key is column name and value is null values in that column
{'#': 0,
'Name': 0,
'Type 1': 0,
'Type 2': 386,
'Total': 0,
'HP': 0,
'Attack': 0,
'Defense': 0,
'Sp_Atk': 0,
'Sp_Def': 0,
'Speed': 0,
'Generation': 0,
'Legendary': 0}
Every time you call e.nextElement()
you take the next object from the iterator. You have to check e.hasMoreElement()
between each call.
Example:
while(e.hasMoreElements()){
String param = e.nextElement();
System.out.println(param);
}
#include <sstream>
and use the fully qualified name i.e. std::stringstream ss;
You can use Ternary operator logic Ternary operator logic is the process of using "(condition)? (true return value) : (false return value)" statements to shorten your if/else structures. i.e
/* most basic usage */
$var = 5;
$var_is_greater_than_two = ($var > 2 ? true : false); // returns true
InnerText
property html-encodes the content, turning <p>
to <p>
, etc. If you want to insert HTML tags you need to use InnerHTML
.
const person = { name: 'Prince', age: 22, id: 1 };_x000D_
_x000D_
let {name, age, id} = person;_x000D_
_x000D_
console.log(name);_x000D_
console.log(age);_x000D_
console.log(id);
_x000D_
* Your variable name and object index need be same
I would recommend that you don't. Do you really want to have a class that is dependent on how the text editing is implemented in the form, or do you want a mechanism allowing you to get and set the text?
I would suggest the latter. So in your form, create a property that wraps the Text
property of the TextBox
control in question:
public string FirstName
{
get { return firstNameTextBox.Text; }
set { firstNameTextBox.Text = value; }
}
Next, create some mechanism through which you class can get a reference to the form (through the contructor for instance). Then that class can use the property to access and modify the text:
class SomeClass
{
private readonly YourFormClass form;
public SomeClass(YourFormClass form)
{
this.form = form;
}
private void SomeMethodDoingStuffWithText()
{
string firstName = form.FirstName;
form.FirstName = "some name";
}
}
An even better solution would be to define the possible interactions in an interface, and let that interface be the contract between your form and the other class. That way the class is completely decoupled from the form, and can use anyting implementing the interface (which opens the door for far easier testing):
interface IYourForm
{
string FirstName { get; set; }
}
In your form class:
class YourFormClass : Form, IYourForm
{
// lots of other code here
public string FirstName
{
get { return firstNameTextBox.Text; }
set { firstNameTextBox.Text = value; }
}
}
...and the class:
class SomeClass
{
private readonly IYourForm form;
public SomeClass(IYourForm form)
{
this.form = form;
}
// and so on
}
I make all of the solutions in here with no result, so i look in another place and i found a way to trick the IDE, so you have to put a line in the Mainfest to make the Gradle use a different one, the one that you put on build.gradle the line is:
<uses-sdk tools:node="replace" />
just it, and it work.
I hope it helps.
You can also use jQuery's delay()
method instead of setTimeout()
. It'll give you much more readable code. Here's an example from the docs:
$( "#foo" ).slideUp( 300 ).delay( 800 ).fadeIn( 400 );
The only limitation (that I'm aware of) is that it doesn't give you a way to clear the timeout. If you need to do that then you're better off sticking with all the nested callbacks that setTimeout
thrusts upon you.
After the docker installation you have 3 networks by default:
docker network ls
NETWORK ID NAME DRIVER SCOPE
f3be8b1ef7ce bridge bridge local
fbff927877c1 host host local
023bb5940080 none null local
I'm trying to keep this simple. So if you start a container by default it will be created inside the bridge (docker0) network.
$ docker run -d jenkins
1498e581cdba jenkins "/bin/tini -- /usr..." 3 minutes ago Up 3 minutes 8080/tcp, 50000/tcp friendly_bell
In the dockerfile of jenkins the ports 8080
and 50000
are exposed. Those ports are opened for the container on its bridge network. So everything inside that bridge network can access the container on port 8080
and 50000
. Everything in the bridge network is in the private range of "Subnet": "172.17.0.0/16",
If you want to access them from the outside you have to map the ports with -p 8080:8080
. This will map the port of your container to the port of your real server (the host network). So accessing your server on 8080
will route to your bridgenetwork on port 8080
.
Now you also have your host network. Which does not containerize the containers networking. So if you start a container in the host network it will look like this (it's the first one):
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1efd834949b2 jenkins "/bin/tini -- /usr..." 6 minutes ago Up 6 minutes eloquent_panini
1498e581cdba jenkins "/bin/tini -- /usr..." 10 minutes ago Up 10 minutes 8080/tcp, 50000/tcp friendly_bell
The difference is with the ports. Your container is now inside your host network. So if you open port 8080
on your host you will acces the container immediately.
$ sudo iptables -I INPUT 5 -p tcp -m tcp --dport 8080 -j ACCEPT
I've opened port 8080
in my firewall and when I'm now accesing my server on port 8080
I'm accessing my jenkins. I think this blog is also useful to understand it better.
The reason it's hard to just kill a thread is because the language designers want to avoid the following problem: your thread takes a lock, and then you kill it before it can release it. Now anyone who needs that lock will get stuck.
What you have to do is use some global variable to tell the thread to stop. You have to manually, in your thread code, check that global variable and return if you see it indicates you should stop.
This is borderline programming, but look into using tr:
$ echo "this is just a test" | tr -s ' ' | tr ' ' '_'
Should do it. The first invocation squeezes the spaces down, the second replaces with underscore. You probably need to add TABs and other whitespace characters, this is for spaces only.
For a custom class to work properly in collections you'll have to implement/override the equals()
methods of the class. For sorting also override compareTo()
.
See this article or google about how to implement those methods properly.
All other answer are correct, but remember that if you cast double to int you will loss decimal value.. so 2.9 double become 2 int.
You can use Math.round(double)
function or simply do :
(int)(yourDoubleValue + 0.5d)
As of API 24, sending a file://
URI to another app will throw a FileUriExposedException. Instead, use FileProvider to send a content://
URI:
public File getFile(Context context, String fileName) {
if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
return null;
}
File storageDir = context.getExternalFilesDir(null);
return new File(storageDir, fileName);
}
public Uri getFileUri(Context context, String fileName) {
File file = getFile(context, fileName);
return FileProvider.getUriForFile(context, BuildConfig.APPLICATION_ID + ".provider", file);
}
You must also define the FileProvider in your manifest:
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="com.mydomain.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_paths" />
</provider>
Example file_paths.xml:
<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<external-files-path name="name" path="path" />
</paths>
Replace "name" and "path" as appropriate.
To give the PDF viewer access to the file, you also have to add the FLAG_GRANT_READ_URI_PERMISSION
flag to the intent:
private void displayPdf(String fileName) {
Uri uri = getFileUri(this, fileName);
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "application/pdf");
// FLAG_GRANT_READ_URI_PERMISSION is needed on API 24+ so the activity opening the file can read it
intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY | Intent.FLAG_GRANT_READ_URI_PERMISSION);
if (intent.resolveActivity(getPackageManager()) == null) {
// Show an error
} else {
startActivity(intent);
}
}
See the FileProvider documentation for more details.
The other answers are good if you are dealing only with numbers using the format string, but this is good when you may have strings that need to be padded (although admittedly a little diffent than the question asked, seems similar in spirit). Also, be careful if the string is longer than the pad.
let str = "a str"
let padAmount = max(10, str.count)
String(repeatElement("-", count: padAmount - str.count)) + str
Output "-----a str"
Here is an example of custom combobox in android:
package myWidgets;
import android.content.Context;
import android.database.Cursor;
import android.text.InputType;
import android.util.AttributeSet;
import android.view.View;
import android.widget.AutoCompleteTextView;
import android.widget.ImageButton;
import android.widget.LinearLayout;
import android.widget.SimpleCursorAdapter;
public class ComboBox extends LinearLayout {
private AutoCompleteTextView _text;
private ImageButton _button;
public ComboBox(Context context) {
super(context);
this.createChildControls(context);
}
public ComboBox(Context context, AttributeSet attrs) {
super(context, attrs);
this.createChildControls(context);
}
private void createChildControls(Context context) {
this.setOrientation(HORIZONTAL);
this.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
_text = new AutoCompleteTextView(context);
_text.setSingleLine();
_text.setInputType(InputType.TYPE_CLASS_TEXT
| InputType.TYPE_TEXT_VARIATION_NORMAL
| InputType.TYPE_TEXT_FLAG_CAP_SENTENCES
| InputType.TYPE_TEXT_FLAG_AUTO_COMPLETE
| InputType.TYPE_TEXT_FLAG_AUTO_CORRECT);
_text.setRawInputType(InputType.TYPE_TEXT_VARIATION_PASSWORD);
this.addView(_text, new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT, 1));
_button = new ImageButton(context);
_button.setImageResource(android.R.drawable.arrow_down_float);
_button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
_text.showDropDown();
}
});
this.addView(_button, new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
}
/**
* Sets the source for DDLB suggestions.
* Cursor MUST be managed by supplier!!
* @param source Source of suggestions.
* @param column Which column from source to show.
*/
public void setSuggestionSource(Cursor source, String column) {
String[] from = new String[] { column };
int[] to = new int[] { android.R.id.text1 };
SimpleCursorAdapter cursorAdapter = new SimpleCursorAdapter(this.getContext(),
android.R.layout.simple_dropdown_item_1line, source, from, to);
// this is to ensure that when suggestion is selected
// it provides the value to the textbox
cursorAdapter.setStringConversionColumn(source.getColumnIndex(column));
_text.setAdapter(cursorAdapter);
}
/**
* Gets the text in the combo box.
*
* @return Text.
*/
public String getText() {
return _text.getText().toString();
}
/**
* Sets the text in combo box.
*/
public void setText(String text) {
_text.setText(text);
}
}
Hope it helps!!
curl -v --trace-time
This must be done in verbose mode
If someone else has the database open, then ask them to close it. If the database was not closed cleanly (Access or a computer crashed), then you can try to Compact and Repair the file.
I have also noticed that if the file is opened or put in a read-only state at any time, it might get 'stuck' like that. So try this:
Not sure it that's a bug or a feature, but I've seen it frustrate many a user.
This is one ugly way to do this. I would just use a local variable.
EDIT: If size() > 0 as well.
if (orderBean.getFiles().size() + Integer.MIN_VALUE-1 < Integer.MIN_VALUE + 5-1)
In Visual Studio UML sequence this can also be described as fragments which is nicely documented here: https://msdn.microsoft.com/en-us/library/dd465153.aspx
For anyone that wants to do this using Python, and be able to export all tables without predefinining field names etc, I wrote a short script for this the other day, hope someone finds it useful:
from contextlib import closing
from datetime import datetime
import json
import MySQLdb
DB_NAME = 'x'
DB_USER = 'y'
DB_PASS = 'z'
def get_tables(cursor):
cursor.execute('SHOW tables')
return [r[0] for r in cursor.fetchall()]
def get_rows_as_dicts(cursor, table):
cursor.execute('select * from {}'.format(table))
columns = [d[0] for d in cursor.description]
return [dict(zip(columns, row)) for row in cursor.fetchall()]
def dump_date(thing):
if isinstance(thing, datetime):
return thing.isoformat()
return str(thing)
with closing(MySQLdb.connect(user=DB_USER, passwd=DB_PASS, db=DB_NAME)) as conn, closing(conn.cursor()) as cursor:
dump = {}
for table in get_tables(cursor):
dump[table] = get_rows_as_dicts(cursor, table)
print(json.dumps(dump, default=dump_date, indent=2))
To automate this, you could define the foreign key constraint with ON DELETE CASCADE
.
I quote the the manual for foreign key constraints:
CASCADE
specifies that when a referenced row is deleted, row(s) referencing it should be automatically deleted as well.
Look up the current FK definition like this:
SELECT pg_get_constraintdef(oid) AS constraint_def
FROM pg_constraint
WHERE conrelid = 'public.kontakty'::regclass -- assuming public schema
AND conname = 'kontakty_ibfk_1';
Then add or modify the ON DELETE ...
part to ON DELETE CASCADE
(preserving everything else as is) in a statement like:
ALTER TABLE kontakty
DROP CONSTRAINT kontakty_ibfk_1
, ADD CONSTRAINT kontakty_ibfk_1
FOREIGN KEY (id_osoby) REFERENCES osoby (id_osoby) ON DELETE CASCADE;
There is no ALTER CONSTRAINT
command. Drop and recreate the constraint in a single ALTER TABLE
statement to avoid possible race conditions with concurrent write access.
You need the privileges to do so, obviously. The operation takes an ACCESS EXCLUSIVE
lock on table kontakty
and a SHARE ROW EXCLUSIVE
lock on table osoby
.
If you can't ALTER
the table, then deleting by hand (once) or by trigger BEFORE DELETE
(every time) are the remaining options.
If you want to pass class instances (objects), you either use
void function(const MyClass& object){
// do something with object
}
or
void process(MyClass& object_to_be_changed){
// change member variables
}
On the other hand if you want to "pass" the class itself
template<class AnyClass>
void function_taking_class(){
// use static functions of AnyClass
AnyClass::count_instances();
// or create an object of AnyClass and use it
AnyClass object;
object.member = value;
}
// call it as
function_taking_class<MyClass>();
// or
function_taking_class<MyStruct>();
with
class MyClass{
int member;
//...
};
MyClass object1;
You need to specify data
, index
and columns
to DataFrame
constructor, as in:
>>> pd.DataFrame(data=data[1:,1:], # values
... index=data[1:,0], # 1st column as index
... columns=data[0,1:]) # 1st row as the column names
edit: as in the @joris comment, you may need to change above to np.int_(data[1:,1:])
to have correct data type.
\n
is used for making separate line;
Example:
System.out.print("I" +'\n'+ "am" +'\n'+ "boy");
Result:
I
am
boy
To delete multiple values try this one:
while (($key = array_search($del_val, $messages)) !== false)
{
unset($messages[$key]);
}
All you have to do are the three steps:
As of .NET Core 2.2, TargetMigration
seems to be gone:
get-help Update-Database
NAME
Update-Database
SYNOPSIS
Updates the database to a specified migration.
SYNTAX
Update-Database [[-Migration] <String>] [-Context <String>] [-Project <String>] [-StartupProject <String>] [<CommonParameters>]
DESCRIPTION
Updates the database to a specified migration.
RELATED LINKS
Script-Migration
about_EntityFrameworkCore
REMARKS
To see the examples, type: "get-help Update-Database -examples".
For more information, type: "get-help Update-Database -detailed".
For technical information, type: "get-help Update-Database -full".
For online help, type: "get-help Update-Database -online"
So this works for me now:
Update-Database -Migration 20180906131107_xxxx_xxxx
As well as (no -Migration
switch):
Update-Database 20180906131107_xxxx_xxxx
On an added note, you can no longer cleanly delete migration folders without putting your Model Snapshot out of sync. So if you learn this the hard way and wind up with an empty migration where you know there should be changes, you can run (no switches needed for the last migration):
Remove-migration
It will clean up the mess and put you back where you need to be, even though the last migration folder was deleted manually.
Press SHIFT 2 times and you can search Every-where , both Class and Method() in the project.
Ctrl + N for finding only Class name.
Ctrl + E for Recent Files.
Based on above solutions, here comes a extension class which you can use to serialize and deserialize any object. Any other XML attributions are up to you.
Just use it like this:
string s = new MyObject().Serialize(); // to serialize into a string
MyObject b = s.Deserialize<MyObject>();// deserialize from a string
internal static class Extensions
{
public static T Deserialize<T>(this string value)
{
var xmlSerializer = new XmlSerializer(typeof(T));
return (T)xmlSerializer.Deserialize(new StringReader(value));
}
public static string Serialize<T>(this T value)
{
if (value == null)
return string.Empty;
var xmlSerializer = new XmlSerializer(typeof(T));
using (var stringWriter = new StringWriter())
{
using (var xmlWriter = XmlWriter.Create(stringWriter, new XmlWriterSettings { Indent = true }))
{
xmlSerializer.Serialize(xmlWriter, value);
return stringWriter.ToString();
}
}
}
}
Combine Kim's answer with os:
p=Path(os.getcwd())
os.chdir(p.parent)
According to the documentation, you should be able to switch back and forth like this:
In [2]: %matplotlib inline
In [3]: plot(...)
In [4]: %matplotlib qt # wx, gtk, osx, tk, empty uses default
In [5]: plot(...)
and that will pop up a regular plot window (a restart on the notebook may be necessary).
I hope this helps.
If you mean "how can I get a reference to all markers on a given map" - then I think the answer is "Sorry, you have to do it yourself". I don't think there is any handy "maps.getMarkers()" type function: you have to keep your own references as the points are created:
var allMarkers = [];
....
// Create some markers
for(var i = 0; i < 10; i++) {
var marker = new google.maps.Marker({...});
allMarkers.push(marker);
}
...
Then you can loop over the allMarkers
array to and do whatever you need to do.
For those coming here and are using Java config you can set the Bean to lazy-init using annotations like this:
In the configuration class:
@Configuration
// @Lazy - For all Beans to load lazily
public class AppConf {
@Bean
@Lazy
public Demo demo() {
return new Demo();
}
}
For component scanning and auto-wiring:
@Component
@Lazy
public class Demo {
....
....
}
@Component
public class B {
@Autowired
@Lazy // If this is not here, Demo will still get eagerly instantiated to satisfy this request.
private Demo demo;
.......
}
Just understand the difference between width:auto; and width:100%; Width:auto; will (AUTO)MATICALLY calculate the width in order to fit the exact given with of the wrapping div including the padding. Width 100% expands the width and adds the padding.
Using String#gsub
with regular expression:
"((String1))".gsub(/^\(+|\)+$/, '')
# => "String1"
"(((((( parentheses )))".gsub(/^\(+|\)+$/, '')
# => " parentheses "
This will remove surrounding parentheses only.
"(((((( This (is) string )))".gsub(/^\(+|\)+$/, '')
# => " This (is) string "
I succeeded converting byte array to a string with this method:
public static String byteArrayToString(byte[] data){
String response = Arrays.toString(data);
String[] byteValues = response.substring(1, response.length() - 1).split(",");
byte[] bytes = new byte[byteValues.length];
for (int i=0, len=bytes.length; i<len; i++) {
bytes[i] = Byte.parseByte(byteValues[i].trim());
}
String str = new String(bytes);
return str.toLowerCase();
}
You should not do it for UPDATE
and DELETE
, as if there is impact on performance, it is not a positive one.
For INSERT
there might be situations where your INSERT
will raise an exception (UNIQUE CONSTRAINT
violation etc), in which case you might want to prevent it with the IF EXISTS
and handle it more gracefully.
Since this answer was somehow accepted and thus will appear at the top, although it's not the best, I've improved it based on the other answers and the comments.
The C way; simplest, but will treat any invalid number as 0:
#include <cstdlib>
int x = atoi(argv[1]);
The C way with input checking:
#include <cstdlib>
errno = 0;
char *endptr;
long int x = strtol(argv[1], &endptr, 10);
if (endptr == argv[1]) {
std::cerr << "Invalid number: " << argv[1] << '\n';
} else if (*endptr) {
std::cerr << "Trailing characters after number: " << argv[1] << '\n';
} else if (errno == ERANGE) {
std::cerr << "Number out of range: " << argv[1] << '\n';
}
The C++ iostreams way with input checking:
#include <sstream>
std::istringstream ss(argv[1]);
int x;
if (!(ss >> x)) {
std::cerr << "Invalid number: " << argv[1] << '\n';
} else if (!ss.eof()) {
std::cerr << "Trailing characters after number: " << argv[1] << '\n';
}
Alternative C++ way since C++11:
#include <stdexcept>
#include <string>
std::string arg = argv[1];
try {
std::size_t pos;
int x = std::stoi(arg, &pos);
if (pos < arg.size()) {
std::cerr << "Trailing characters after number: " << arg << '\n';
}
} catch (std::invalid_argument const &ex) {
std::cerr << "Invalid number: " << arg << '\n';
} catch (std::out_of_range const &ex) {
std::cerr << "Number out of range: " << arg << '\n';
}
All four variants assume that argc >= 2
. All accept leading whitespace; check isspace(argv[1][0])
if you don't want that. All except atoi
reject trailing whitespace.
Consider also .attr()
$("#roommate_but").attr("disabled", true);
worked for me.
Out of memory in android application is very common if we not handle the bitmap properly, The solution for the problem would be
if(imageBitmap != null) {
imageBitmap.recycle();
imageBitmap = null;
}
System.gc();
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 3;
imageBitmap = BitmapFactory.decodeFile(URI, options);
Bitmap scaledBitmap = Bitmap.createScaledBitmap(imageBitmap, 200, 200, true);
imageView.setImageBitmap(scaledBitmap);
In the above code Have just tried to recycle the bitmap which will allow you to free up the used memory space ,so out of memory may not happen.I have tried it worked for me.
If still facing the problem you can also add these line as well
BitmapFactory.Options options = new BitmapFactory.Options();
options.inTempStorage = new byte[16*1024];
options.inPurgeable = true;
for more information take a look at this link
NOTE: Due to the momentary "pause" caused by performing gc, it is not recommended to do this before each bitmap allocation.
Optimum design is:
Free all bitmaps that are no longer needed, by the if / recycle / null
code shown. (Make a method to help with that.)
System.gc();
Allocate the new bitmaps.
1) Check whether mod_rewrite is enabled. Go to /etc/apache2/mods-enabled
directory and see whether the rewrite.load
is available. If not, enable it using the command sudo a2enmod rewrite
.It will enable the rewrite module. If its already enabled, it will show the message Module rewrite already enabled
.
2)Create a virtual host for public directory so that instead of giving http://localhost/public/index.php
we will be able to use like that http://example.com/index.php
. [hence public folder name will be hidded]
3)Then create a .htaccess which will hide the index.php from your url which shoul be inside the root directory (public folder)
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /index.php?/$1 [L]
A shortcut for using a lambda with as a C function pointer is this:
"auto fun = +[](){}"
Using Curl as exmample (curl debug info)
auto callback = +[](CURL* handle, curl_infotype type, char* data, size_t size, void*){ //add code here :-) };
curl_easy_setopt(curlHande, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(curlHande,CURLOPT_DEBUGFUNCTION,callback);
You could also do:
SELECT EMP_NAME, DEPT
FROM EMPLOYEE
WHERE TRUNC(TIME_CREATED) = DATE '2011-01-26'
lambda
is just a fancy way of saying function
. Other than its name, there is nothing obscure, intimidating or cryptic about it. When you read the following line, replace lambda
by function
in your mind:
>>> f = lambda x: x + 1
>>> f(3)
4
It just defines a function of x
. Some other languages, like R
, say it explicitly:
> f = function(x) { x + 1 }
> f(3)
4
You see? It's one of the most natural things to do in programming.
Possible Permission Issue
I know this post is fairly old, but I ran into a similar issue and my file was spelled correctly.
I originally created the app_offline.htm file in another location and then moved it to the root of my application. Because of my setup I then had a permissions issue.
The website acted as if it was not there. Creating the file within the root directory instead of moving it, fixed my problem. (Or you could just fix the permission in properties->security)
Hope it helps someone.
there is no standard, but most frameworks support both, you can see for example for java spring that it accepts both here
@GetMapping("/api/foos")
@ResponseBody
public String getFoos(@RequestParam List<String> id) {
return "IDs are " + id;
}
And Spring MVC will map a comma-delimited id parameter:
http://localhost:8080/api/foos?id=1,2,3
----
IDs are [1,2,3]
Or a list of separate id parameters:
http://localhost:8080/api/foos?id=1&id=2
----
IDs are [1,2]
I would like to propose different solution which wasn't mentioned here which is using .URL
files:
set SHRT_LOCA=%userprofile%\Desktop\new_shortcut2.url
set SHRT_DEST=C:\Windows\write.exe
echo [InternetShortcut]> %SHRT_LOCA%
echo URL=file:///%SHRT_DEST%>> %SHRT_LOCA%
echo IconFile=%SHRT_DEST%>> %SHRT_LOCA%
echo IconIndex=^0>> %SHRT_LOCA%
Notes:
.url
files are intended to open web pages but they are working fine for any properly constructed URI.url
file extension even if "Hide extensions for known file types" option in Windows Explorer is disabledIconFile
and IconIndex
are optionalShort answer:
Only use WITH (NOLOCK)
in SELECT statement on tables that have a clustered index.
Long answer:
WITH(NOLOCK) is often exploited as a magic way to speed up database reads.
The result set can contain rows that have not yet been committed, that are often later rolled back.
If WITH(NOLOCK) is applied to a table that has a non-clustered index then row-indexes can be changed by other transactions as the row data is being streamed into the result-table. This means that the result-set can be missing rows or display the same row multiple times.
READ COMMITTED adds an additional issue where data is corrupted within a single column where multiple users change the same cell simultaneously.
I won't stress much on the difference as it is already covered, but notice the below:
android:backgroundTint
android:backgroundTintMode
are only available at API 21android:background
, and you want to change its default color, then you can use android:backgroundTint
to add a shade to it.example
<Button
android:layout_width="50dp"
android:layout_height="wrap_content"
android:background="@android:drawable/ic_dialog_email" />
<Button
android:layout_width="50dp"
android:layout_height="wrap_content"
android:background="@android:drawable/ic_dialog_email"
android:backgroundTint="@color/colorAccent" />
Another example
If you try to change the accent color of the FloatingActionButton
using android:background
you won't notice a change, that is because it's already utilizes app:srcCompat
, so in order to do that you can use android:backgroundTint
instead
This works for me:
$('#element').click(function (e) {
if (e.offsetX > e.target.offsetLeft) {
// click on element
}
else{
// click on ::before element
}
});
There are lots of free tools that can do this.
I use PDFTK (a open source cross-platform command-line tool) for things like that.
Return val from procedure
ALTER PROCEDURE testme @input VARCHAR(10),
@output VARCHAR(20) output
AS
BEGIN
IF @input >= '1'
BEGIN
SET @output = 'i am back';
RETURN;
END
END
DECLARE @get VARCHAR(20);
EXEC testme
'1',
@get output
SELECT @get
"Default Namespace textbox in project properties is disabled" Same with me (VS 2010). I edited the project file ("xxx.csproj") and tweaked the item. That changed the default namespace.
In case you also want Schema:
SELECT CONCAT(ic.TABLE_SCHEMA, '.', st.name) as TableName
,st.create_date
,st.modify_date
FROM sys.tables st
JOIN INFORMATION_SCHEMA.COLUMNS ic ON ic.TABLE_NAME = st.name
GROUP BY ic.TABLE_SCHEMA, st.name, st.create_date, st.modify_date
ORDER BY st.create_date
You can also use:
{{ word|striptags('<b>')|raw }}
so that only <b>
tag will be allowed.
This may help... use the following code and browse the folder you want to set as the working folder
setwd(choose.dir())
ken's answer above did the trick for me. The problem with the accepted answer is that it only works if you have a single modal on the page. If you have multiple modals, you'll need to do it inline in the "open" param while initializing the dialog, not after the fact.
open: function(type,data) { $(this).parent().appendTo("form"); }
If you do what the first accepted answer tells you with multiple modals, you'll only get the last modal on the page working firing postbacks properly, not all of them.
That error is a parse error. The parser is throwing it while going through the code, trying to understand it. No code is being executed yet in the parsing stage. Because of that it hasn't yet executed the error_reporting
line, therefore the error reporting settings aren't changed yet.
You cannot change error reporting settings (or really, do anything) in a file with syntax errors.
XAMPP should have come with a "fake" sendmail program. In that case, you can use sendmail as well:
[mail function]
; For Win32 only.
; http://php.net/smtp
;SMTP = localhost
; http://php.net/smtp-port
;smtp_port = 25
; For Win32 only.
; http://php.net/sendmail-from
;sendmail_from = [email protected]
; For Unix only. You may supply arguments as well (default: "sendmail -t -i").
; http://php.net/sendmail-path
sendmail_path = "C:/xampp/sendmail/sendmail.exe -t -i"
Sendmail should have a sendmail.ini
with it; it should be configured as so:
# Example for a user configuration file
# Set default values for all following accounts.
defaults
logfile "C:\xampp\sendmail\sendmail.log"
# Mercury
#account Mercury
#host localhost
#from postmaster@localhost
#auth off
# A freemail service example
account ACCOUNTNAME_HERE
tls on
tls_certcheck off
host smtp.gmail.com
from EMAIL_HERE
auth on
user EMAIL_HERE
password PASSWORD_HERE
# Set a default account
account default : ACCOUNTNAME_HERE
Of course, replace ACCOUNTNAME_HERE with an arbitrary account name, replace EMAIL_HERE with a valid email (such as a Gmail or Hotmail), and replace PASSWORD_HERE with the password to your email. Now, you should be able to send mail. Remember to restart Apache (from the control panel or the batch files) to allow the changes to PHP to work.
Following width worked well in HTML5: -
<table >
<tr>
<th style="min-width:120px">Month</th>
<th style="min-width:60px">Savings</th>
</tr>
<tr>
<td>January</td>
<td>$100</td>
</tr>
<tr>
<td>February</td>
<td>$80</td>
</tr>
</table>
Please note that
If you have SublimeLinter installed, your theme (at least it ST3) may end up in .../Packages/User/SublimeLinter/[ your-chosen-theme ]
As mentioned above - find the nested 'settings' dict and edit or add the 'lineHighlight' entry with your desired #RRGGBB
or #RRGGBBAA
. I like #0000AA99
when on a black(ish) background.
Handy tool if you do not know your color combinations: RGBtoHEX and HEXtoRGB
No trick necessary.
grep --with-filename 'pattern' file
With line numbers:
grep -n --with-filename 'pattern' file
For-loop in C:
for(int x = 0; x<=3; x++)
{
//Do something!
}
The same loop in 8086 assembler:
xor cx,cx ; cx-register is the counter, set to 0
loop1 nop ; Whatever you wanna do goes here, should not change cx
inc cx ; Increment
cmp cx,3 ; Compare cx to the limit
jle loop1 ; Loop while less or equal
That is the loop if you need to access your index (cx). If you just wanna to something 0-3=4 times but you do not need the index, this would be easier:
mov cx,4 ; 4 iterations
loop1 nop ; Whatever you wanna do goes here, should not change cx
loop loop1 ; loop instruction decrements cx and jumps to label if not 0
If you just want to perform a very simple instruction a constant amount of times, you could also use an assembler-directive which will just hardcore that instruction
times 4 nop
Do-while-loop in C:
int x=1;
do{
//Do something!
}
while(x==1)
The same loop in assembler:
mov ax,1
loop1 nop ; Whatever you wanna do goes here
cmp ax,1 ; Check wether cx is 1
je loop1 ; And loop if equal
While-loop in C:
while(x==1){
//Do something
}
The same loop in assembler:
jmp loop1 ; Jump to condition first
cloop1 nop ; Execute the content of the loop
loop1 cmp ax,1 ; Check the condition
je cloop1 ; Jump to content of the loop if met
For the for-loops you should take the cx-register because it is pretty much standard. For the other loop conditions you can take a register of your liking. Of course replace the no-operation instruction with all the instructions you wanna perform in the loop.
Use ENUM in MySQL for true / false it gives and accepts the true / false values without any extra code.
ALTER TABLE `itemcategory` ADD `aaa` ENUM('false', 'true') NOT NULL DEFAULT 'false'
(https?:\/\/(?:www\.|(?!www))[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9]\.[^\s]{2,}|www\.[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9]\.[^\s]{2,}|https?:\/\/(?:www\.|(?!www))[a-zA-Z0-9]+\.[^\s]{2,}|www\.[a-zA-Z0-9]+\.[^\s]{2,})
Will match the following cases
http://www.foufos.gr
https://www.foufos.gr
http://foufos.gr
http://www.foufos.gr/kino
http://werer.gr
www.foufos.gr
www.mp3.com
www.t.co
http://t.co
http://www.t.co
https://www.t.co
www.aa.com
http://aa.com
http://www.aa.com
https://www.aa.com
Will NOT match the following
www.foufos
www.foufos-.gr
www.-foufos.gr
foufos.gr
http://www.foufos
http://foufos
www.mp3#.com
var expression = /(https?:\/\/(?:www\.|(?!www))[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9]\.[^\s]{2,}|www\.[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9]\.[^\s]{2,}|https?:\/\/(?:www\.|(?!www))[a-zA-Z0-9]+\.[^\s]{2,}|www\.[a-zA-Z0-9]+\.[^\s]{2,})/gi;_x000D_
var regex = new RegExp(expression);_x000D_
_x000D_
var check = [_x000D_
'http://www.foufos.gr',_x000D_
'https://www.foufos.gr',_x000D_
'http://foufos.gr',_x000D_
'http://www.foufos.gr/kino',_x000D_
'http://werer.gr',_x000D_
'www.foufos.gr',_x000D_
'www.mp3.com',_x000D_
'www.t.co',_x000D_
'http://t.co',_x000D_
'http://www.t.co',_x000D_
'https://www.t.co',_x000D_
'www.aa.com',_x000D_
'http://aa.com',_x000D_
'http://www.aa.com',_x000D_
'https://www.aa.com',_x000D_
'www.foufos',_x000D_
'www.foufos-.gr',_x000D_
'www.-foufos.gr',_x000D_
'foufos.gr',_x000D_
'http://www.foufos',_x000D_
'http://foufos',_x000D_
'www.mp3#.com'_x000D_
];_x000D_
_x000D_
check.forEach(function(entry) {_x000D_
if (entry.match(regex)) {_x000D_
$("#output").append( "<div >Success: " + entry + "</div>" );_x000D_
} else {_x000D_
$("#output").append( "<div>Fail: " + entry + "</div>" );_x000D_
}_x000D_
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<div id="output"></div>
_x000D_
If you installed WAMP to c:\wamp
then I believe your webserver root directory would be c:\wamp\www
, however this might vary depending on version.
Yes, this is where you would put your site files to access them through a browser.
keytool error: java.io.IOException: Keystore was tampered with, or password was incorrect
I solved my problem when I changed keystore path C:\MyWorks\mykeystore to C:\MyWorks\mykeystore.keystore.
This is bit out of context but in case you are here because you want to tag a specific commit like i do
Here's a command to do that :-
Example:
git tag -a v1.0 7cceb02 -m "Your message here"
Where 7cceb02
is the beginning part of the commit id.
You can then push the tag using git push origin v1.0
.
You can do git log
to show all the commit id's in your current branch.
I am using the following
....
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.0.2</version>
<configuration>
<finalName>${project.groupId}/${project.artifactId}-${baseVersion}.${monthlyVersion}.${instanceVersion}</finalName>
</configuration>
</plugin>
....
This way you can define each value individually or pragmatically from Jenkins of some other system.
mvn package -DbaseVersion=1 -monthlyVersion=2 -instanceVersion=3
This will place a folder target\{group.id}\projectName-1.2.3.jar
A better way to save time might be
....
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.0.2</version>
<configuration>
<finalName>${project.groupId}/${project.artifactId}-${baseVersion}</finalName>
</configuration>
</plugin>
....
Like the same except I use on variable.
mvn package -DbaseVersion=0.3.4
This will place a folder target\{group.id}\projectName-1.2.3.jar
you can also use outputDirectory
inside of configuration
to specify a location you may want the package to be located.
In my experience it may be the result of auto-generation by a string-based tools, where the author did not understand the rules of HTML.
When some developers generate HTML without the use of special XML-oriented tools, they may try to be sure the resulting HTML is valid by taking the approach that everything must be escaped.
Referring to your example, the reason why every occurrence of "
is represented by "
could be because using that approach, you can safely use such "special" characters in both attributes and values.
Another motivation I've seen is where people believe, "We must explicitly show that our symbols are not part of the syntax." Whereas, valid HTML can be created by using the proper string-manipulation tools, see the previous paragraph again.
Here is some pseudo-code loosely based on C#, although it is preferred to use valid methods and tools:
public class HtmlAndXmlWriter
{
private string Escape(string badString)
{
return badString.Replace("&", "&").Replace("\"", """).Replace("'", "'").Replace(">", ">").Replace("<", "<");
}
public string GetHtmlFromOutObject(Object obj)
{
return "<div class='type_" + Escape(obj.Type) + "'>" + Escape(obj.Value) + "</div>";
}
}
It's really very common to see such approaches taken to generate HTML.
You are most likely pushing a string 'NULL'
to the table, rather then an actual NULL
, but other things may be going on as well, an illustration:
mysql> CREATE TABLE date_test (pdd DATE NOT NULL);
Query OK, 0 rows affected (0.11 sec)
mysql> INSERT INTO date_test VALUES (NULL);
ERROR 1048 (23000): Column 'pdd' cannot be null
mysql> INSERT INTO date_test VALUES ('NULL');
Query OK, 1 row affected, 1 warning (0.05 sec)
mysql> show warnings;
+---------+------+------------------------------------------+
| Level | Code | Message |
+---------+------+------------------------------------------+
| Warning | 1265 | Data truncated for column 'pdd' at row 1 |
+---------+------+------------------------------------------+
1 row in set (0.00 sec)
mysql> SELECT * FROM date_test;
+------------+
| pdd |
+------------+
| 0000-00-00 |
+------------+
1 row in set (0.00 sec)
mysql> ALTER TABLE date_test MODIFY COLUMN pdd DATE NULL;
Query OK, 1 row affected (0.15 sec)
Records: 1 Duplicates: 0 Warnings: 0
mysql> INSERT INTO date_test VALUES (NULL);
Query OK, 1 row affected (0.06 sec)
mysql> SELECT * FROM date_test;
+------------+
| pdd |
+------------+
| 0000-00-00 |
| NULL |
+------------+
2 rows in set (0.00 sec)
Because, it is not supposed to do that.
input[type=text] { }
is an attribute selector, and will only select those element, with the matching attribute.
>>> import datetime
>>> now = datetime.datetime.now()
>>> print unicode(now.replace(microsecond=0))
2011-11-03 11:19:07
There are a couple of ways to solve this. The least hackiest and almost what you want:
$client = new SoapClient(
null,
array(
'location' => 'https://example.com/ExampleWebServiceDL/services/ExampleHandler',
'uri' => 'http://example.com/wsdl',
'trace' => 1,
'use' => SOAP_LITERAL,
)
);
$params = new \SoapVar("<Acquirer><Id>MyId</Id><UserId>MyUserId</UserId><Password>MyPassword</Password></Acquirer>", XSD_ANYXML);
$result = $client->Echo($params);
This gets you the following XML:
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://example.com/wsdl">
<SOAP-ENV:Body>
<ns1:Echo>
<Acquirer>
<Id>MyId</Id>
<UserId>MyUserId</UserId>
<Password>MyPassword</Password>
</Acquirer>
</ns1:Echo>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
That is almost exactly what you want, except for the namespace on the method name. I don't know if this is a problem. If so, you can hack it even further. You could put the <Echo>
tag in the XML string by hand and have the SoapClient not set the method by adding 'style' => SOAP_DOCUMENT,
to the options array like this:
$client = new SoapClient(
null,
array(
'location' => 'https://example.com/ExampleWebServiceDL/services/ExampleHandler',
'uri' => 'http://example.com/wsdl',
'trace' => 1,
'use' => SOAP_LITERAL,
'style' => SOAP_DOCUMENT,
)
);
$params = new \SoapVar("<Echo><Acquirer><Id>MyId</Id><UserId>MyUserId</UserId><Password>MyPassword</Password></Acquirer></Echo>", XSD_ANYXML);
$result = $client->MethodNameIsIgnored($params);
This results in the following request XML:
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
<SOAP-ENV:Body>
<Echo>
<Acquirer>
<Id>MyId</Id>
<UserId>MyUserId</UserId>
<Password>MyPassword</Password>
</Acquirer>
</Echo>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
Finally, if you want to play around with SoapVar and SoapParam objects, you can find a good reference in this comment in the PHP manual: http://www.php.net/manual/en/soapvar.soapvar.php#104065. If you get that to work, please let me know, I failed miserably.
A very easy solution via Keychains.
It's a simple wrapper for the system Keychain. Just add the SSKeychain.h
, SSKeychain.m
, SSKeychainQuery.h
and SSKeychainQuery.m
files to your project and add the Security.framework to your target.
To save a password:
[SSKeychain setPassword:@"AnyPassword" forService:@"AnyService" account:@"AnyUser"]
To retrieve a password:
NSString *password = [SSKeychain passwordForService:@"AnyService" account:@"AnyUser"];
Where setPassword
is what value you want saved and forService
is what variable you want it saved under and account is for what user/object the password and any other info is for.
The top answer is not suitable when values may have length less than 4.
You will get "Invalid length parameter passed to the right function" because it doesn't accept negatives. Use a CASE statement:
SELECT case when len(foo) >= 4 then RIGHT(foo, LEN(foo) - 4) else '' end AS myfoo from mytable;
Values less than 4 give the surprising behavior below instead of an error, because passing negative values to RIGHT trims the first characters instead of the entire string. It makes more sense to use RIGHT(MyColumn, -5)
instead.
An example comparing what you get when you use the top answer's "length - 5" instead of "-5":
create temp table foo (foo) as values ('123456789'),('12345678'),('1234567'),('123456'),('12345'),('1234'),('123'),('12'),('1'), ('');
select foo, right(foo, length(foo) - 5), right(foo, -5) from foo;
foo len(foo) - 5 just -5
--------- ------------ -------
123456789 6789 6789
12345678 678 678
1234567 67 67
123456 6 6
12345
1234 234
123 3
12
1
As stated in 1.7.12 Release Notes, you may use
$ git rebase -i --root
In my case, I just updated my IntelliJ to Ultimate 2018.2 and all of my projects suddenly cannot find the implementations and the 'src' folders - it turned out IntelliJ removed the type of project (e.g. Maven).
What I did is:
Right click on the root project > Add Framework support... > Look for Maven (in my case) > Wait to re-index again > Then it worked again.
UPDATE 2:
I have always been encountering this when I update IntelliJ (2019.1.1 Ultimate Edition).
Just click the refresh button of Maven Tab and it should re-index your current project as Maven Project:
You can just use the .NET Framework method:
[System.Net.Dns]::GetHostName()
also
$env:COMPUTERNAME
Python is a case-sensitive language. All Python keywords are lowercase. Use if
, not If
.
Also, don't put a colon after the call to print()
. Also, indent the print()
and exit()
calls, as Python uses indentation rather than brackets to represent code blocks.
And also, proceed = "y" or "Y"
won't do what you want. Use proceed = "y"
and if answer.lower() == proceed:
, or something similar.
There's also the fact that your program will exit as long as the input value is not the single character "y" or "Y", which contradicts the prompting of "N" for the alternate case. Instead of your else
clause there, use elif answer.lower() == info_incorrect:
, with info_incorrect = "n"
somewhere beforehand. Then just reprompt for the response or something if the input value was something else.
I'd recommend going through the tutorial in the Python documentation if you're having this much trouble the way you're learning now. http://docs.python.org/tutorial/index.html
By the following code you can get the current URL in Jquery.
$(location).attr('hostname'); //origin URL
$(location).attr('pathname'); // path name
$(location).attr('hash'); // everything comes after hash
You could also use wp_list_categories();
wp_list_categories( array('taxonomy' => 'product_cat', 'title_li' => '') );
I had this problem and spent a few hours trying to fix it. I fixed the prefix error by changing the path but I still had an encoding import error. This was fixed by restarting my computer.
The date/time in the datebase won't be a formatted version at all. It'll just be the date/time itself. How you display that date/time when you extract the value from the database is a different matter. I strongly suspect you really just want:
model.Returndate = DateTime.Now.Date;
or possibly
model.Returndate = DateTime.UtcNow.Date;
Yes, if you look at the database using SQL Server Studio or whatever, you'll now see midnight - but that's irrelevant, and when you fetch the date out of the database and display it to a user, then you can apply the relevant format.
EDIT: In regard to your edited question, the problem isn't with the model - it's how you specify the view. You should use something like:
@Html.EditorFor(model => model.Returndate.Date.ToString("d"))
where d
is the standard date and time format specifier for the short date pattern (which means it'll take the current cultural settings into account).
That's the bit I've been saying repeatedly - that when you display the date/time to the user, that's the time to format it as a date without a time.
EDIT: If this doesn't work, there should be a way of decorating the model or view with a format string - or something like that. I'm not really an MVC person, but it feels like there ought to be a good way of doing this declaratively...
An
in
statement will be parsed identically tofield=val1 or field=val2 or field=val3
. Putting a null in there will boil down tofield=null
which won't work.
I would do this for clairity
SELECT *
FROM tbl_name
WHERE
(id_field IN ('value1', 'value2', 'value3') OR id_field IS NULL)
I have also used a non-generic version, using the new
keyword:
public interface IMetadata
{
Type DataType { get; }
object Data { get; }
}
public interface IMetadata<TData> : IMetadata
{
new TData Data { get; }
}
Explicit interface implementation is used to allow both Data
members:
public class Metadata<TData> : IMetadata<TData>
{
public Metadata(TData data)
{
Data = data;
}
public Type DataType
{
get { return typeof(TData); }
}
object IMetadata.Data
{
get { return Data; }
}
public TData Data { get; private set; }
}
You could derive a version targeting value types:
public interface IValueTypeMetadata : IMetadata
{
}
public interface IValueTypeMetadata<TData> : IMetadata<TData>, IValueTypeMetadata where TData : struct
{
}
public class ValueTypeMetadata<TData> : Metadata<TData>, IValueTypeMetadata<TData> where TData : struct
{
public ValueTypeMetadata(TData data) : base(data)
{}
}
This can be extended to any kind of generic constraints.
box-shadow: inset 10px 0 0 0 red;
Sorry to re-post this. But I really haven't seen any other implementation that gives the quality I needed.
/**
* Converts an HSL color value to RGB. Conversion formula
* adapted from http://en.wikipedia.org/wiki/HSL_color_space.
* Assumes h, s, and l are contained in the set [0, 1] and
* returns r, g, and b in the set [0, 255].
*
* @param {number} h The hue
* @param {number} s The saturation
* @param {number} l The lightness
* @return {Array} The RGB representation
*/
function hue2rgb($p, $q, $t){
if($t < 0) $t += 1;
if($t > 1) $t -= 1;
if($t < 1/6) return $p + ($q - $p) * 6 * $t;
if($t < 1/2) return $q;
if($t < 2/3) return $p + ($q - $p) * (2/3 - $t) * 6;
return $p;
}
function hslToRgb($h, $s, $l){
if($s == 0){
$r = $l;
$g = $l;
$b = $l; // achromatic
}else{
$q = $l < 0.5 ? $l * (1 + $s) : $l + $s - $l * $s;
$p = 2 * $l - $q;
$r = hue2rgb($p, $q, $h + 1/3);
$g = hue2rgb($p, $q, $h);
$b = hue2rgb($p, $q, $h - 1/3);
}
return array(round($r * 255), round($g * 255), round($b * 255));
}
/* Uncomment to test * /
for ($i=0;$i<360;$i++) {
$rgb=hslToRgb($i/360, 1, .9);
echo '<div style="background-color:rgb(' .$rgb[0] . ', ' . $rgb[1] . ', ' . $rgb[2] . ');padding:2px;"></div>';
}
/* End Test */
Method overloading deals with the notion of having two or more methods in the same class with the same name but different arguments.
void foo(int a)
void foo(int a, float b)
Method overriding means having two methods with the same arguments, but different implementations. One of them would exist in the parent class, while another will be in the derived, or child class. The @Override
annotation, while not required, can be helpful to enforce proper overriding of a method at compile time.
class Parent {
void foo(double d) {
// do something
}
}
class Child extends Parent {
@Override
void foo(double d){
// this method is overridden.
}
}
I had an applicationhost.config inside my project folder. It seems IISExpress uses this folder, even though it displays a different file in my c:\users folder
.vs\config\applicationhost.config
Try the following code:
Configuration config = ConfigurationManager.OpenExeConfiguration(Application.ExecutablePath);
config.AppSettings.Settings.Add("YourKey", "YourValue");
config.Save(ConfigurationSaveMode.Minimal);
It worked for me :-)
You can use one of the following git command for this:
git checkout master
git checkout branchname
The cleanest way, as far as I know:
My opinion regarding the current solutions on this SO page: reading "directly" JSP values using java scriplet inside actual javascript code is probably the most disgusting thing you could do. Makes me wanna puke. haha. Seriously, try to not do it.
The HTML part without JSP:
<body data-customvalueone="1st Interpreted Jsp Value" data-customvaluetwo="another Interpreted Jsp Value">
Here is your regular page main content
</body>
The HTML part when using JSP:
<body data-customvalueone="${beanName.attrName}" data-customvaluetwo="${beanName.scndAttrName}">
Here is your regular page main content
</body>
The javascript part (using jQuery for simplicity):
<script type="text/JavaScript" src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.js"></script>
<script type="text/javascript">
jQuery(function(){
var valuePassedFromJSP = $("body").attr("data-customvalueone");
var anotherValuePassedFromJSP = $("body").attr("data-customvaluetwo");
alert(valuePassedFromJSP + " and " + anotherValuePassedFromJSP + " are the values passed from your JSP page");
});
</script>
And here is the jsFiddle to see this in action http://jsfiddle.net/6wEYw/2/
Resources:
Put your image in a container div then use the following CSS (changing the dimensions to suit your image.
.imageContainer{
position: absolute;
width: 100px; /*the image width*/
height: 100px; /*the image height*/
left: 50%;
top: 50%;
margin-left: -50px; /*half the image width*/
margin-top: -50px; /*half the image height*/
}
Everythings works well. You can't use divtag.onclick, becease "onclick" attribute doesn't exist. You need first create this attribute by using .setAttribute(). Look on this http://reference.sitepoint.com/javascript/Element/setAttribute . You should read documentations first before you start giving "-".
for folder, subs, files in os.walk(unicode(docs_dir, 'utf-8')):
for filename in files:
if not filename.startswith('.'):
file_path = os.path.join(folder, filename)
I'm using the one used by Django and it seems to work pretty well:
def is_valid_url(url):
import re
regex = re.compile(
r'^https?://' # http:// or https://
r'(?:(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+[A-Z]{2,6}\.?|' # domain...
r'localhost|' # localhost...
r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})' # ...or ip
r'(?::\d+)?' # optional port
r'(?:/?|[/?]\S+)$', re.IGNORECASE)
return url is not None and regex.search(url)
You can always check the latest version here: https://github.com/django/django/blob/master/django/core/validators.py#L74
The following might work well enough:
aptitude versions ^hylafax+
See more in aptitude(8)
You have the right general strategy for doing this using base graphics, but as was pointed out you're essentially telling R to pick a random color from a set of 10 for each line. Given that, it's not surprising that you will occasionally get two lines with the same color. Here's an example using base graphics:
plot(0,0,xlim = c(-10,10),ylim = c(-10,10),type = "n")
cl <- rainbow(5)
for (i in 1:5){
lines(-10:10,runif(21,-10,10),col = cl[i],type = 'b')
}
Note the use of type = "n"
to suppress all plotting in the original call to set up the window, and the indexing of cl
inside the for loop.
To delete a specific line of a file by its line number:
Replace variables filename and line_to_delete with the name of your file and the line number you want to delete.
filename = 'foo.txt'
line_to_delete = 3
initial_line = 1
file_lines = {}
with open(filename) as f:
content = f.readlines()
for line in content:
file_lines[initial_line] = line.strip()
initial_line += 1
f = open(filename, "w")
for line_number, line_content in file_lines.items():
if line_number != line_to_delete:
f.write('{}\n'.format(line_content))
f.close()
print('Deleted line: {}'.format(line_to_delete))
Example output:
Deleted line: 3
If you want a free simple location map showing a single marked location, for your website, Then
Let me know If this would help..
Another way to do this is to add the new characters to the string as follows:
Dim str As String
str = ""
To append text to your string this way:
str = str & "and this is more text"
Just a note about setting DefaultCellStyle.BackColor
...you can't set it to any transparent value except Color.Empty
. That's the default value. That falsely implies (to me, anyway) that transparent colors are OK. They're not. Every row I set to a transparent color just draws the color of selected-rows.
I spent entirely too much time beating my head against the wall over this issue.
Some options:
tr
tr -d '\15\32' < windows.txt > unix.txt
OR
tr -d '\r' < windows.txt > unix.txt
perl
perl -p -e 's/\r$//' < windows.txt > unix.txt
sed
sed 's/^M$//' windows.txt > unix.txt
OR
sed 's/\r$//' windows.txt > unix.txt
To obtain ^M
, you have to type CTRL-V
and then CTRL-M
.
This is not relevant to this particular case because of the decimals, but may help people who google the heading. Integer fields convert fine to varchars, but floats change to scientific notation. A very quick way to change a float quickly if you do not have decimals is therefore to change the field first to an integer and then change it to a varchar.
This is a slightly modified solution. The Process will be killed when it was idle for at least 1 second. Maybe you should add a timeof of X seconds and call the function from a separate thread.
private void SendToPrinter()
{
ProcessStartInfo info = new ProcessStartInfo();
info.Verb = "print";
info.FileName = @"c:\output.pdf";
info.CreateNoWindow = true;
info.WindowStyle = ProcessWindowStyle.Hidden;
Process p = new Process();
p.StartInfo = info;
p.Start();
long ticks = -1;
while (ticks != p.TotalProcessorTime.Ticks)
{
ticks = p.TotalProcessorTime.Ticks;
Thread.Sleep(1000);
}
if (false == p.CloseMainWindow())
p.Kill();
}
Using writeLines also allows you to dispense with the "\n" newline character, by using c()
. As in:
writeLines(c("File not supplied.","Usage: ./program F=filename",[additional text for third line]))
This is helpful if you plan on writing a multiline message with combined fixed and variable input, such as the [additional text for third line] above.
There are already useful answers to this question above, however there is one more possibility which I don't see being addressed here.
We should consider that the java is installed correctly (that's why eclipse could have been launched in the first place), and the JDK is also added correctly to the eclipse. So the issue might be for some reason (e.g. migration of eclipse to another OS) the path for javadoc is not right which you can easily check and modify in the javadoc wizard page. Here is detailed instructions:
Project->Generate Javadoc...
javadoc command
path is correct as illustrated in below screenshot:This solution is applicable for Windows machine.
MongoDB needs data directory to store data. Default path is C:\data\db
. In case you don't have the data directory, create one in your C: drive. (P.S.: data\db means there is a directory named 'db' inside the directory 'data')
Place the json you want to import in this path: C:\data\db\
.
Open the command prompt and type the following command
mongoimport --db databaseName --collections collectionName --file fileName.json --type json --batchSize 1
Here,
redirected uri is the location where the user will be redirected after successfully login to your app. for example to get access token for your app in facebook you need to subimt redirected uri which is nothing only the app Domain that your provide when you create your facebook app.
It is a BAD PRACTICE to use interfaces just to hold constants (named constant interface pattern by Josh Bloch). Here's what Josh advises:
If the constants are strongly tied to an existing class or interface, you should add them to the class or interface. For example, all of the boxed numerical primitive classes, such as Integer and Double, export MIN_VALUE and MAX_VALUE constants. If the constants are best viewed as members of an enumerated type, you should export them with an enum type. Otherwise, you should export the constants with a noninstantiable utility class.
Example:
// Constant utility class
package com.effectivejava.science;
public class PhysicalConstants {
private PhysicalConstants() { } // Prevents instantiation
public static final double AVOGADROS_NUMBER = 6.02214199e23;
public static final double BOLTZMANN_CONSTANT = 1.3806503e-23;
public static final double ELECTRON_MASS = 9.10938188e-31;
}
About the naming convention:
By convention, such fields have names consisting of capital letters, with words separated by underscores. It is critical that these fields contain either primitive values or references to immutable objects.
Just in case...simply trying one more time worked for me. It could just be a temporary connection issue.
Another alternative to restore outline when using the keyboard is to use :focus-visible
. However, this doesn't work on IE :https://caniuse.com/?search=focus-visible.
Just for the fun, I'm offering an alternative solution using jOOQ and Java 8. Instead of using jOOQ, you could be using any other API that maps JDBC ResultSet
to List
, such as Spring JDBC or Apache DbUtils, or write your own ResultSetIterator
:
List<Object> list =
DSL.using(connection)
.fetch("SELECT col1, col2, col3, ...")
.stream()
.flatMap(r -> Arrays.stream(r.intoArray()))
.collect(Collectors.toList());
List<Object> list =
DSL.using(connection)
.fetch("SELECT col1, col2, col3, ...")
.stream()
.flatMap(Record::intoStream)
.collect(Collectors.toList());
(Disclaimer, I work for the company behind jOOQ)
There is also:
try:
del mydict[key]
except KeyError:
pass
This only does 1 lookup instead of 2. However, except
clauses are expensive, so if you end up hitting the except clause frequently, this will probably be less efficient than what you already have.
I had a similar problem on Ubuntu 16.04. Thanks to @Guna I figured out that I had to manually install Java (sudo apt install openjdk-8-jre
).
Suspended. The session is waiting for an event, such as I/O, to complete.
box-shadow: inset 1px 2000px rgba(208, 208, 208, 0.54);
I got further with Valeres answer:
pip install configparser sudo cp /usr/lib/python3.6/configparser.py /usr/lib/python3.6/ConfigParser.py Then try to install the MYSQL-python again. That Worked for me
I would suggest to link the file instead of copy it. It is save to update. I linked the file to /usr/lib/python3/
directory.
For anyone checking this using python 3:
If you want to print the following output "100% correct"
:
python 3.8: print("100% correct")
python 3.7 and less: print("100%% correct")
A neat programming workaround for compatibility across diff versions of python is shown below:
Note: If you have to use this, you're probably experiencing many other errors... I'd encourage you to upgrade / downgrade python in relevant machines so that they are all compatible.
DevOps is a notable exception to the above -- implementing the following code would indeed be appropriate for specific DevOps / Debugging scenarios.
import sys
if version_info.major==3:
if version_info.minor>=8:
my_string = "100% correct"
else:
my_string = "100%% correct"
# Finally
print(my_string)
I just make it simple:
i = [1,2,1,3]
k = 0
for ii in i:
if ii == 1 :
print ("index of 1 = ", k)
k = k+1
output:
index of 1 = 0
index of 1 = 2
These days (May 2017), MATLAB still suffer from a robust method to export figures, especially in GNU/Linux systems when exporting figures in batch mode. The best option is to use the extension export_fig
Just download the source code from Github and use it:
plot(cos(linspace(0, 7, 1000)));
set(gcf, 'Position', [100 100 150 150]);
export_fig test2.png
I hope this helps someone.
STUFF ( character_expression , start , length ,character_expression )
select stuff(@str, 1, 0, replicate('0', @n - len(@str)))
Yes. See the relevant page on the R wiki. Short answer: read.xls
from the gdata
package works most of the time (although you need to have Perl installed on your system -- usually already true on MacOS and Linux, but takes an extra step on Windows, i.e. see http://strawberryperl.com/). There are various caveats, and alternatives, listed on the R wiki page.
The only reason I see not to do this directly is that you may want to examine the spreadsheet to see if it has glitches (weird headers, multiple worksheets [you can only read one at a time, although you can obviously loop over them all], included plots, etc.). But for a well-formed, rectangular spreadsheet with plain numbers and character data (i.e., not comma-formatted numbers, dates, formulas with divide-by-zero errors, missing values, etc. etc. ..) I generally have no problem with this process.
Bit late response to this question, however I do have something to add that might be useful for others.
If you make use of an iFrame and set the pdf file path to the src, it will load zoomed out to 100%, which the equivalence of FitH
An elegant method would be to use the ~=
compatible release operator according to PEP 440. In your case this would amount to:
package~=0.5.0
As an example, if the following versions exist, it would choose 0.5.9
:
0.5.0
0.5.9
0.6.0
For clarification, each pair is equivalent:
~= 0.5.0
>= 0.5.0, == 0.5.*
~= 0.5
>= 0.5, == 0.*
As you run your spark app on top of HDFS, according to Sandy Ryza
I’ve noticed that the HDFS client has trouble with tons of concurrent threads. A rough guess is that at most five tasks per executor can achieve full write throughput, so it’s good to keep the number of cores per executor below that number.
So I believe that your first configuration is slower than third one is because of bad HDFS I/O throughput
I have had this issue before, you need more than the standard 755
or 644
permission to store the $_SESSION
information. You need to be able to write to that file as that is how it remembers.
This worked to move my local repo (including history) to my remote github.com repo. After creating the new empty repo at GitHub.com I use the URL in step three below and it works great.
git clone --mirror <url_of_old_repo>
cd <name_of_old_repo>
git remote add new-origin <url_of_new_repo>
git push new-origin --mirror
I found this at: https://gist.github.com/niksumeiko/8972566
<input type="text" autocomplete="off" />
I modified the code as follow:
ViewModel
using System.Collections.Generic;
using ContosoUniversity.Models;
namespace ContosoUniversity.ViewModels
{
public class InstructorIndexData
{
public PagedList.IPagedList<Instructor> Instructors { get; set; }
public PagedList.IPagedList<Course> Courses { get; set; }
public PagedList.IPagedList<Enrollment> Enrollments { get; set; }
}
}
Controller
public ActionResult Index(int? id, int? courseID,int? InstructorPage,int? CoursePage,int? EnrollmentPage)
{
int instructPageNumber = (InstructorPage?? 1);
int CoursePageNumber = (CoursePage?? 1);
int EnrollmentPageNumber = (EnrollmentPage?? 1);
var viewModel = new InstructorIndexData();
viewModel.Instructors = db.Instructors
.Include(i => i.OfficeAssignment)
.Include(i => i.Courses.Select(c => c.Department))
.OrderBy(i => i.LastName).ToPagedList(instructPageNumber,5);
if (id != null)
{
ViewBag.InstructorID = id.Value;
viewModel.Courses = viewModel.Instructors.Where(
i => i.ID == id.Value).Single().Courses.ToPagedList(CoursePageNumber,5);
}
if (courseID != null)
{
ViewBag.CourseID = courseID.Value;
viewModel.Enrollments = viewModel.Courses.Where(
x => x.CourseID == courseID).Single().Enrollments.ToPagedList(EnrollmentPageNumber,5);
}
return View(viewModel);
}
View
<div>
Page @(Model.Instructors.PageCount < Model.Instructors.PageNumber ? 0 : Model.Instructors.PageNumber) of @Model.Instructors.PageCount
@Html.PagedListPager(Model.Instructors, page => Url.Action("Index", new {InstructorPage=page}))
</div>
I hope this would help you!!
This is basically a more detailed version of a previous answer.
In your Terminal, go to the location of your utility program, mysqladmin
For example, if you were doing local development and using an application like M/W/XAMP, you might go to the directory:
/Applications/MAMP/Library/bin
This is where mysqladmin resides.
If you're not using an application like MAMP, you may also be able to find your local installation of mysql at: /usr/local/mysql
And then if you go to: /usr/local/mysql/bin/
You are in the directory where mysqladmin resides.
Then, to change the password, you will do the following:
At your Terminal prompt enter the exact command below (aka copy and paste) and press enter. The word "password" is part of the command, so don't be confused and come to the conclusion that you need to replace this word with some password you created previously or want to use in the future. You will have a chance to enter a new password soon enough, but it's not in this first command that you will do that:
./mysqladmin -u root -p password
The Terminal will ask you to enter your original or initial password, not a new one yet. From the above image you provided, it looks like you have one already created, so enter it here:
Enter password:
oldpassword
New password:
newpassword
Confirm new password:
newpassword
Reset or restart your Terminal.
In some cases, as with M/W/XAMP, you will have to update this new password in various files in order to get your application running properly again.
The above answer is good, but if you need a version that can operate along different axes, here's a working implementation.
def entropy(A, axis=None):
"""Computes the Shannon entropy of the elements of A. Assumes A is
an array-like of nonnegative ints whose max value is approximately
the number of unique values present.
>>> a = [0, 1]
>>> entropy(a)
1.0
>>> A = np.c_[a, a]
>>> entropy(A)
1.0
>>> A # doctest: +NORMALIZE_WHITESPACE
array([[0, 0], [1, 1]])
>>> entropy(A, axis=0) # doctest: +NORMALIZE_WHITESPACE
array([ 1., 1.])
>>> entropy(A, axis=1) # doctest: +NORMALIZE_WHITESPACE
array([[ 0.], [ 0.]])
>>> entropy([0, 0, 0])
0.0
>>> entropy([])
0.0
>>> entropy([5])
0.0
"""
if A is None or len(A) < 2:
return 0.
A = np.asarray(A)
if axis is None:
A = A.flatten()
counts = np.bincount(A) # needs small, non-negative ints
counts = counts[counts > 0]
if len(counts) == 1:
return 0. # avoid returning -0.0 to prevent weird doctests
probs = counts / float(A.size)
return -np.sum(probs * np.log2(probs))
elif axis == 0:
entropies = map(lambda col: entropy(col), A.T)
return np.array(entropies)
elif axis == 1:
entropies = map(lambda row: entropy(row), A)
return np.array(entropies).reshape((-1, 1))
else:
raise ValueError("unsupported axis: {}".format(axis))
To Convert BEGIN OPENSSH PRIVATE KEY
to BEGIN RSA PRIVATE KEY
:
ssh-keygen -p -m PEM -f ~/.ssh/id_rsa
service postgresql status
returns: 10/main (port 5432): online
I'm running Ubuntu 18.04
Just incase you are working with a FirebaseRecyclerAdapter this post works as a charm https://stackoverflow.com/a/39058636/6507009
Here's one way in XSLT 2
<?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:template match="@*|node()"> <xsl:copy> <xsl:apply-templates select="@*|node()"/> </xsl:copy> </xsl:template> <xsl:template match="text()"> <xsl:value-of select="translate(.,'"','''')"/> </xsl:template> </xsl:stylesheet>
Doing it in XSLT1 is a little more problematic as it's hard to get a literal containing a single apostrophe, so you have to resort to a variable:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:template match="@*|node()"> <xsl:copy> <xsl:apply-templates select="@*|node()"/> </xsl:copy> </xsl:template> <xsl:variable name="apos">'</xsl:variable> <xsl:template match="text()"> <xsl:value-of select="translate(.,'"',$apos)"/> </xsl:template> </xsl:stylesheet>
Isn't it this simple?
var result = _(data)
.groupBy(x => x.color)
.map((value, key) => ({color: key, users: value}))
.value();
This is possible too:
using System.Web.Helpers;
var listOfObjectsResult = Json.Decode<List<DataType>>(JsonData);
Make the Dictionary a static, and never add to it outside of your static object's ctor. That seems to be a simpler solution than fiddling with the static/const rules in C#.