Just for those interested you can avoid writing custom function by passing NULL as last parameter (if you do not intend to do extra processing of returned data).
In this case default internal function is used.
Details
http://curl.haxx.se/libcurl/c/curl_easy_setopt.html#CURLOPTWRITEDATA
Example
#include <stdio.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
FILE *fp;
CURLcode res;
char *url = "http://stackoverflow.com";
char outfilename[FILENAME_MAX] = "page.html";
curl = curl_easy_init();
if (curl)
{
fp = fopen(outfilename,"wb");
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, NULL);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
fclose(fp);
}
return 0;
}
I had the same problem: while building iOS release for Flutter project, was asked for keychain password, entered Apple ID password for developer account, no luck. Finally succeeded by entering password for computer I was using (which was an on-line mac server). Hope that helps.
This is the function I use to modify the exception message in Python 2.7 and 3.x while preserving the original traceback. It requires six
def reraise_modify(caught_exc, append_msg, prepend=False):
"""Append message to exception while preserving attributes.
Preserves exception class, and exception traceback.
Note:
This function needs to be called inside an except because
`sys.exc_info()` requires the exception context.
Args:
caught_exc(Exception): The caught exception object
append_msg(str): The message to append to the caught exception
prepend(bool): If True prepend the message to args instead of appending
Returns:
None
Side Effects:
Re-raises the exception with the preserved data / trace but
modified message
"""
ExceptClass = type(caught_exc)
# Keep old traceback
traceback = sys.exc_info()[2]
if not caught_exc.args:
# If no args, create our own tuple
arg_list = [append_msg]
else:
# Take the last arg
# If it is a string
# append your message.
# Otherwise append it to the
# arg list(Not as pretty)
arg_list = list(caught_exc.args[:-1])
last_arg = caught_exc.args[-1]
if isinstance(last_arg, str):
if prepend:
arg_list.append(append_msg + last_arg)
else:
arg_list.append(last_arg + append_msg)
else:
arg_list += [last_arg, append_msg]
caught_exc.args = tuple(arg_list)
six.reraise(ExceptClass,
caught_exc,
traceback)
I found a solution here: http://www.sitepoint.com/maintain-image-aspect-ratios-responsive-web-design/
The trick is possible because it exists a relation between WIDTH and PADDING-BOTTOM of an element. So:
parent:
container {
height: 0;
padding-bottom: 66%; /* for a 4:3 container size */
}
child (remove all css related to width, i.e. width:100%):
img {
max-height: 100%;
max-width: 100%;
position: absolute;
display:block;
margin:0 auto; /* center */
left:0; /* center */
right:0; /* center */
}
For those having similar trouble using pip 10 with PyCharm, download the latest version here
I was also struggling with a similar issue dealing with exporting data into an Excel spreadsheet using C#. I tried many different methods working with external DLLs and had no luck.
For the export functionality you do not need to use anything dealing with the external DLLs. Instead, just maintain the header and content type of the response.
Here is an article that I found rather helpful. The article talks about how to export data to Excel spreadsheets using ASP.NET.
http://www.icodefor.net/2016/07/export-data-to-excel-sheet-in-asp-dot-net-c-sharp.html
Here's an easier way:
sudo apt-get install maven
More details are here.
Sorry I haven.t read all replies to your question.
Yeah here the thing you want (I have done already)
You can use two tables, with same class name for similar styling, one only with table head and another with your rows. Now put this table inside a div having fixed height with overflow-y:auto OR scroll.
I think this will work even though this was forever ago.
SELECT employee_number, Row_Number()
OVER (PARTITION BY course_code ORDER BY course_completion_date DESC ) as rownum
FROM employee_course_completion
WHERE course_code IN ('M910303', 'M91301R', 'M91301P')
AND rownum = 1
If you want to get the last Id if the date is the same then you can use this assuming your primary key is Id.
SELECT employee_number, Row_Number()
OVER (PARTITION BY course_code ORDER BY course_completion_date DESC, Id Desc) as rownum FROM employee_course_completion
WHERE course_code IN ('M910303', 'M91301R', 'M91301P')
AND rownum = 1
for more exactly positioning:
background-position: bottom 5px right 7px;
Please try below code to check checkbox is checked or not
$(document).ready(function(){
$("#isAgeSelected").on('change',function(){
if($("#isAgeSelected").is(':checked'))
$("#txtAge").show(); // checked
else{
$("#txtAge").hide(); // unchecked
}
});
});
I found that most solutions didn't work with clicks on elements like Labels or DIV's (eg. when using Kendo controls). So I made this simple solution:
function isDoubleClicked(element) {
//if already clicked return TRUE to indicate this click is not allowed
if (element.data("isclicked")) return true;
//mark as clicked for 1 second
element.data("isclicked", true);
setTimeout(function () {
element.removeData("isclicked");
}, 1000);
//return FALSE to indicate this click was allowed
return false;
}
Use it on the place where you have to decide to start an event or not:
$('#button').on("click", function () {
if (isDoubleClicked($(this))) return;
..continue...
});
It's really simple to fix the issue, however keep in mind that you should fork and commit your changes for each library you are using in their repositories to help others as well.
Let's say you have something like this in your code:
$str = "test";
echo($str{0});
since PHP 7.4 curly braces method to get individual characters inside a string has been deprecated, so change the above syntax into this:
$str = "test";
echo($str[0]);
Fixing the code in the question will look something like this:
public function getRecordID(string $zoneID, string $type = '', string $name = ''): string
{
$records = $this->listRecords($zoneID, $type, $name);
if (isset($records->result[0]->id)) {
return $records->result[0]->id;
}
return false;
}
Let's stick to the solution from the linked question (Changing color scale in seaborn bar plot). You want to use argsort to determine the order of the colors to use for colorizing the bars. In the linked question argsort is applied to a Series object, which works fine, while here you have a DataFrame. So you need to select one column of that DataFrame to apply argsort on.
import seaborn as sns
import matplotlib.pyplot as plt
import numpy as np
df = sns.load_dataset("tips")
groupedvalues=df.groupby('day').sum().reset_index()
pal = sns.color_palette("Greens_d", len(groupedvalues))
rank = groupedvalues["total_bill"].argsort().argsort()
g=sns.barplot(x='day',y='tip',data=groupedvalues, palette=np.array(pal[::-1])[rank])
for index, row in groupedvalues.iterrows():
g.text(row.name,row.tip, round(row.total_bill,2), color='black', ha="center")
plt.show()
rank()
starts at 1
instead of zero. So one has to subtract 1 from the array. Also for indexing we need integer values, so we need to cast it to int
.
rank = groupedvalues['total_bill'].rank(ascending=True).values
rank = (rank-1).astype(np.int)
It's worth to mention that CLOB / BLOB data types and their sizes are supported by MySQL 5.0+, so you can choose the proper data type for your need.
http://dev.mysql.com/doc/refman/5.7/en/storage-requirements.html
Data Type Date Type Storage Required
(CLOB) (BLOB)
TINYTEXT TINYBLOB L + 1 bytes, where L < 2**8 (255)
TEXT BLOB L + 2 bytes, where L < 2**16 (64 K)
MEDIUMTEXT MEDIUMBLOB L + 3 bytes, where L < 2**24 (16 MB)
LONGTEXT LONGBLOB L + 4 bytes, where L < 2**32 (4 GB)
where L stands for the byte length of a string
An element can have any number of classNames, however, it can only have one class attribute; only the first one will be read by jQuery.
Using the code you posted, $(".alert-box.warn")
will work but $(".alert-box.dead")
will not.
There should be no \0
in text files.
#include<iostream>
#include<fstream>
using namespace std;
int main(){
fstream f(FILENAME, fstream::in );
string s;
getline( f, s, '\0');
cout << s << endl;
f.close();
}
On modern browsers, you can use the input
event:
$("#textbox").on('input',function() {alert("Change detected!");});
Not trying to take any credits here, all credit goes to @theazureshadow for his reply, but I personally had to adapt it for a table that has some <th>
instead of <td>
for it's first row's cells.
I'm just posting the modified version here in case some of you want to use @theazureshadow's solution, but like me, have some <th>
in the first <tr>
. The class "reportTable" only have to be applied to the table itself.:
table.reportTable {
border-collapse: separate;
border-spacing: 0;
}
table.reportTable td {
border: solid gray 1px;
border-style: solid none none solid;
padding: 10px;
}
table.reportTable td:last-child {
border-right: solid gray 1px;
}
table.reportTable tr:last-child td{
border-bottom: solid gray 1px;
}
table.reportTable th{
border: solid gray 1px;
border-style: solid none none solid;
padding: 10px;
}
table.reportTable th:last-child{
border-right: solid gray 1px;
border-top-right-radius: 10px;
}
table.reportTable th:first-child{
border-top-left-radius: 10px;
}
table.reportTable tr:last-child td:first-child{
border-bottom-left-radius: 10px;
}
table.reportTable tr:last-child td:last-child{
border-bottom-right-radius: 10px;
}
Feel free to adjust the paddings, radiuses, etc to fit your needs. Hope that helps people!
when in kotlin it will look like this :
editText.setOnFocusChangeListener { view, hasFocus ->
if (hasFocus) toast("focused") else toast("focuse lose")
}
Follow below steps to call parameterized consturctor.
Constructor
with parameter types by passing types in Class[]
for getDeclaredConstructor
method of Class
Object[]
fornewInstance
method of Constructor
Example code:
import java.lang.reflect.*;
class NewInstanceWithReflection{
public NewInstanceWithReflection(){
System.out.println("Default constructor");
}
public NewInstanceWithReflection( String a){
System.out.println("Constructor :String => "+a);
}
public static void main(String args[]) throws Exception {
NewInstanceWithReflection object = (NewInstanceWithReflection)Class.forName("NewInstanceWithReflection").newInstance();
Constructor constructor = NewInstanceWithReflection.class.getDeclaredConstructor( new Class[] {String.class});
NewInstanceWithReflection object1 = (NewInstanceWithReflection)constructor.newInstance(new Object[]{"StackOverFlow"});
}
}
output:
java NewInstanceWithReflection
Default constructor
Constructor :String => StackOverFlow
DateFormat originalFormat = new SimpleDateFormat("MMMM dd, yyyy", Locale.ENGLISH);
DateFormat targetFormat = new SimpleDateFormat("yyyyMMdd");
Date date = originalFormat.parse("August 21, 2012");
String formattedDate = targetFormat.format(date); // 20120821
Also note that parse
takes a String
, not a Date
object, which is already parsed.
Siddharth's answer is nice, but relies on globally-scoped variables. There's a better, more OOP-friendly way.
A UserForm is a class module like any other - the only difference is that it has a hidden VB_PredeclaredId
attribute set to True
, which makes VB create a global-scope object variable named after the class - that's how you can write UserForm1.Show
without creating a new instance of the class.
Step away from this, and treat your form as an object instead - expose Property Get
members and abstract away the form's controls - the calling code doesn't care about controls anyway:
Option Explicit
Private cancelling As Boolean
Public Property Get UserId() As String
UserId = txtUserId.Text
End Property
Public Property Get Password() As String
Password = txtPassword.Text
End Property
Public Property Get IsCancelled() As Boolean
IsCancelled = cancelling
End Property
Private Sub OkButton_Click()
Me.Hide
End Sub
Private Sub CancelButton_Click()
cancelling = True
Me.Hide
End Sub
Private Sub UserForm_QueryClose(Cancel As Integer, CloseMode As Integer)
If CloseMode = VbQueryClose.vbFormControlMenu Then
cancelling = True
Cancel = True
Me.Hide
End If
End Sub
Now the calling code can do this (assuming the UserForm was named LoginPrompt
):
With New LoginPrompt
.Show vbModal
If .IsCancelled Then Exit Sub
DoSomething .UserId, .Password
End With
Where DoSomething
would be some procedure that requires the two string parameters:
Private Sub DoSomething(ByVal uid As String, ByVal pwd As String)
'work with the parameter values, regardless of where they came from
End Sub
Since the previous answers were written, requests have changed. Have a look at the bug thread at Github for more detail and this comment for an example.
In short, the files parameter takes a dict
with the key being the name of the form field and the value being either a string or a 2, 3 or 4-length tuple, as described in the section POST a Multipart-Encoded File in the requests quickstart:
>>> url = 'http://httpbin.org/post'
>>> files = {'file': ('report.xls', open('report.xls', 'rb'), 'application/vnd.ms-excel', {'Expires': '0'})}
In the above, the tuple is composed as follows:
(filename, data, content_type, headers)
If the value is just a string, the filename will be the same as the key, as in the following:
>>> files = {'obvius_session_id': '72c2b6f406cdabd578c5fd7598557c52'}
Content-Disposition: form-data; name="obvius_session_id"; filename="obvius_session_id"
Content-Type: application/octet-stream
72c2b6f406cdabd578c5fd7598557c52
If the value is a tuple and the first entry is None
the filename property will not be included:
>>> files = {'obvius_session_id': (None, '72c2b6f406cdabd578c5fd7598557c52')}
Content-Disposition: form-data; name="obvius_session_id"
Content-Type: application/octet-stream
72c2b6f406cdabd578c5fd7598557c52
If you go to the Flat file connection manager under Advanced and Look at the "OutputColumnWidth" description's ToolTip It will tell you that Composit characters may use more spaces. So the "é" in "Société" most likely occupies more than one character.
EDIT: Here's something about it: http://en.wikipedia.org/wiki/Precomposed_character
not found on the java.library.path: /usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
The native lib is expected in one of the following locations
/usr/java/packages/lib/amd64
/usr/lib64
/lib64
/lib
/usr/lib
and not in
tomcat/lib
The files in tomcat/lib
are all jar
file and are added by tomcat to the classpath
so that they are available to your application.
The native lib is needed by tomcat to perform better on the platform it is installed on and thus cannot be a jar
, for linux it could be a .so
file, for windows it could be a .dll
file.
Just download the native library for your platform and place it in the one of the locations tomcat is expecting it to be.
Note that you are not required to have this lib for development/test purposes. Tomcat runs just fine without it.
org.apache.catalina.startup.Catalina start INFO: Server startup in 2882 ms
EDIT
The output you are getting is very normal, it's just some logging outputs from tomcat, the line right above indicates that the server correctly started and is ready for operating.
If you are troubling with running your servlet then after the run on sever
command eclipse opens a browser window (embeded (default) or external, depends on your config). If nothing shows on the browser, then check the url bar of the browser to see whether your servlet was requested or not.
It should be something like that
http://localhost:8080/<your-context-name>/<your-servlet-name>
EDIT 2
Try to call your servlet using the following url
http://localhost:8080/com.filecounter/FileCounter
Also each web project has a web.xml, you can find it in your project under WebContent\WEB-INF
.
It is better to configure your servlets there using servlet-name
servlet-class
and url-mapping
. It could look like that:
<servlet>
<description></description>
<display-name>File counter - My first servlet</display-name>
<servlet-name>file_counter</servlet-name>
<servlet-class>com.filecounter.FileCounter</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>file_counter</servlet-name>
<url-pattern>/FileFounter</url-pattern>
</servlet-mapping>
In eclipse dynamic web project the default context name is the same as your project name.
http://localhost:8080/<your-context-name>/FileCounter
will work too.
I really struggled to find a way to read a binary file into a byte array in C++ that would output the same hex values I see in a hex editor. After much trial and error, this seems to be the fastest way to do so without extra casts. By default it loads the entire file into memory, but only prints the first 1000 bytes.
string Filename = "BinaryFile.bin";
FILE* pFile;
pFile = fopen(Filename.c_str(), "rb");
fseek(pFile, 0L, SEEK_END);
size_t size = ftell(pFile);
fseek(pFile, 0L, SEEK_SET);
uint8_t* ByteArray;
ByteArray = new uint8_t[size];
if (pFile != NULL)
{
int counter = 0;
do {
ByteArray[counter] = fgetc(pFile);
counter++;
} while (counter <= size);
fclose(pFile);
}
for (size_t i = 0; i < 800; i++) {
printf("%02X ", ByteArray[i]);
}
Assume you were:
There are many more examples, but these are the most common, in my experience.
Differences might not be meaningful in a typical use case, but using the standard DOM functionality
$("#el")[0].outerHTML
is about twice as fast as
$("<div />").append($("#el").clone()).html();
so I would go with:
/*
* Return outerHTML for the first element in a jQuery object,
* or an empty string if the jQuery object is empty;
*/
jQuery.fn.outerHTML = function() {
return (this[0]) ? this[0].outerHTML : '';
};
In oracle, generally speaking, there are number of facts that I will mention in following section:
Therefore, your question, "to see all tablespaces and datafiles belong to SCOTT" is s bit wrong.
However, there are some DBA views encompass information about all database objects, regardless of the owner. Only users with DBA privileges can access these views: DBA_DATA_FILES, DBA_TABLESPACES, DBA_FREE_SPACE, DBA_SEGMENTS.
So, connect to your DB as sysdba and run query through these helpful views. For example this query can help you to find all tablespaces and their data files that objects of your user are located:
SELECT DISTINCT sgm.TABLESPACE_NAME , dtf.FILE_NAME
FROM DBA_SEGMENTS sgm
JOIN DBA_DATA_FILES dtf ON (sgm.TABLESPACE_NAME = dtf.TABLESPACE_NAME)
WHERE sgm.OWNER = 'SCOTT'
This matches a word from any length:
var phrase = "an important number comes after this: 123456";
var word = "this: ";
var number = phrase.substr(phrase.indexOf(word) + word.length);
// number = 123456
At first see this question to see how you can find if a link has a jQuery handler assigned to it.
Next use:
$("a").attr("onclick")
to see if there is a javascript event assigned to it.
If any of the above is true, then call the click method. If not, get the link:
$("a").attr("href")
and follow it.
I am afraid I don't know what to do if addEventListener is used to add an event handler. If you are in charge of the full page source, use only jQuery event handlers.
Old question but I had similar issue and I solved it by adding
extern void* memset(void*, int, size_t);
or just
extern void* memset();
at the top of translation unit ( *.c file ).
I would use one Object and one Array, if you want to save some cycle:
var lookup = {};
var items = json.DATA;
var result = [];
for (var item, i = 0; item = items[i++];) {
var name = item.name;
if (!(name in lookup)) {
lookup[name] = 1;
result.push(name);
}
}
In this way you're basically avoiding the indexOf
/ inArray
call, and you will get an Array that can be iterate quicker than iterating object's properties – also because in the second case you need to check hasOwnProperty
.
Of course if you're fine with just an Object you can avoid the check and the result.push
at all, and in case get the array using Object.keys(lookup)
, but it won't be faster than that.
The book seems to indicate that those commands yield the same effect:
The simple case is the example you just saw, running git checkout -b [branch] [remotename]/[branch]. If you have Git version 1.6.2 or later, you can also use the --track shorthand:
$ git checkout --track origin/serverfix
Branch serverfix set up to track remote branch serverfix from origin.
Switched to a new branch 'serverfix'
To set up a local branch with a different name than the remote branch, you can easily use the first version with a different local branch name:
$ git checkout -b sf origin/serverfix
That's particularly handy when your bash or oh-my-zsh git completions are able to pull the origin/serverfix
name for you - just append --track
(or -t
) and you are on your way.
You may need to upgrade your mongo shell. I had version 2.4.9 of the mongo shell locally, and I got this error trying to connect to a mongo 3 database. Upgrading the shell version to 3 solved the problem.
Its a simple xml design. It looks like iOS switch, check this below image
You need to create custom_thumb.xml and custom_track.xml
This is my switch,I need a very big switch so added layout_width/layout_height parameter
<androidx.appcompat.widget.SwitchCompat
android:id="@+id/swOnOff"
android:layout_width="@dimen/_200sdp"
android:layout_marginStart="@dimen/_50sdp"
android:layout_marginEnd="@dimen/_50sdp"
android:layout_marginTop="@dimen/_30sdp"
android:layout_gravity="center"
app:showText="true"
android:textSize="@dimen/_20ssp"
android:fontFamily="@font/opensans_bold"
app:track="@drawable/custom_track"
android:thumb="@drawable/custom_thumb"
android:layout_height="@dimen/_120sdp"/>
Now create custom_thumb.xml
<?xml version="1.0" encoding="utf-8"?>
<selector
xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="false">
<shape android:shape="oval">
<solid android:color="#ffffff"/>
<size android:width="@dimen/_100sdp"
android:height="@dimen/_100sdp"/>
<stroke android:width="1dp"
android:color="#8c8c8c"/>
</shape>
</item>
<item android:state_checked="true">
<shape android:shape="oval">
<solid android:color="#ffffff"/>
<size android:width="@dimen/_100sdp"
android:height="@dimen/_100sdp"/>
<stroke android:width="1dp"
android:color="#34c759"/>
</shape>
</item>
</selector>
Now create custom_track.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="false">
<shape android:shape="rectangle">
<corners android:radius="@dimen/_100sdp" />
<solid android:color="#ffffff" />
<stroke android:color="#8c8c8c" android:width="1dp"/>
<size android:height="20dp" />
</shape>
</item>
<item android:state_checked="true">
<shape android:shape="rectangle">
<corners android:radius="@dimen/_100sdp" />
<solid android:color="#34c759" />
<stroke android:color="#8c8c8c" android:width="1dp"/>
<size android:height="20dp" />
</shape>
</item>
</selector>
For a Windows console app, you want to use SetConsoleCtrlHandler to handle CTRL+C and CTRL+BREAK.
See here for an example.
You can add the following to your path
C:[Python Installation path]\Scripts
e.g. C:\Python27\Scripts
It will start working for jupyter and every other pip install you will do here on.
@($output).Count
does not always produce correct results.
I used the ($output | Measure).Count
method.
I found this with VMware Get-VmQuestion cmdlet:
$output = Get-VmQuestion -VM vm1
@($output).Count
The answer it gave is one, whereas
$output
produced no output (the correct answer was 0 as produced with the Measure
method).
This only seemed to be the case with 0 and 1. Anything above 1 was correct with limited testing.
zerkms told you the difference. If you like you can "convert" a string to an array of strings with length of 1.
If you want to send the string as a argument for example you can do like this:
var myString = "Test";
MethodThatRequiresStringArrayAsParameter( new[]{myString} );
I honestly can't see any other reason of doing the conversion than to satisty a method argument, but if it's another reason you will have to provide some information as to what you are trying to accomplish since there is probably a better solution.
The best way is to change your component's decorator by adding Http in providers array as below.
@Component({
selector: 'greetings-ac-app2',
providers: [Http],
templateUrl: 'app/greetings-ac2.html',
directives: [NgFor, NgModel, NgIf, FORM_DIRECTIVES],
pipes: []
})
re.search('<title>(.*)</title>', s, re.IGNORECASE).group(1)
You can use <properties>
tag to define a custom variable and ${variable}
pattern to use it
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<!-- define -->
<properties>
<property.name>1.0</property.name>
</properties>
<!-- using -->
<version>${property.name}</version>
</project>
To add to the others, var_export might be handy too:
$email_text = var_export($_POST, true);
The easiest way I can think of is the following:
<?php
$selection = array('PHP', 'ASP');
echo '<select>
<option value="0">Please Select Option</option>';
foreach ($selection as $selection) {
$selected = ($options == $selection) ? "selected" : "";
echo '<option '.$selected.' value="'.$selection.'">'.$selection.'</option>';
}
echo '</select>';
The code basically places all of your options in an array which are called upon in the foreach loop. The loop checks to see if your $options variable matches the current selection it's on, if it's a match then $selected will = selected, if not then it is set as blank. Finally the option tag is returned containing the selection from the array and if that particular selection is equal to your $options variable, it's set as the selected option.
with open(player_name, 'r') as myfile:
data=myfile.readline()
list=data.split(" ")
word=list[0]
This code will help you to read the first line and then using the list and split option you can convert the first line word separated by space to be stored in a list.
Than you can easily access any word, or even store it in a string.
You can also do the same thing with using a for loop.
For your property example do:
mvn install "-Dmyproperty=my property from command line"
Note quotes around whole property definition. You'll need them if your property contains spaces.
Take a look at the write.csv
or the write.table
functions. You just have to supply the file name the user selects to the file
parameter, and the dataframe to the x
parameter:
write.csv(x=df, file="myFileName")
I would like to expand the answer of Jason Bunting
like this
ActionResult action = new SampelController().Index(2, "text");
return action;
And Eli will be here for something idea on how to make it generic variable
Can get all types of controller
If you are trying to access the variable from another PHP file directly, you can include that file with include()
or include_once()
, giving you access to that variable. Note that this will include the entire first file in the second file.
I got similar results:
2 * (i * i): 0.458765943 s, n=119860736
2 * i * i: 0.580255126 s, n=119860736
I got the SAME results if both loops were in the same program, or each was in a separate .java file/.class, executed on a separate run.
Finally, here is a javap -c -v <.java>
decompile of each:
3: ldc #3 // String 2 * (i * i):
5: invokevirtual #4 // Method java/io/PrintStream.print:(Ljava/lang/String;)V
8: invokestatic #5 // Method java/lang/System.nanoTime:()J
8: invokestatic #5 // Method java/lang/System.nanoTime:()J
11: lstore_1
12: iconst_0
13: istore_3
14: iconst_0
15: istore 4
17: iload 4
19: ldc #6 // int 1000000000
21: if_icmpge 40
24: iload_3
25: iconst_2
26: iload 4
28: iload 4
30: imul
31: imul
32: iadd
33: istore_3
34: iinc 4, 1
37: goto 17
vs.
3: ldc #3 // String 2 * i * i:
5: invokevirtual #4 // Method java/io/PrintStream.print:(Ljava/lang/String;)V
8: invokestatic #5 // Method java/lang/System.nanoTime:()J
11: lstore_1
12: iconst_0
13: istore_3
14: iconst_0
15: istore 4
17: iload 4
19: ldc #6 // int 1000000000
21: if_icmpge 40
24: iload_3
25: iconst_2
26: iload 4
28: imul
29: iload 4
31: imul
32: iadd
33: istore_3
34: iinc 4, 1
37: goto 17
FYI -
java -version
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)
You can use this to get a name of any provided member:
public static class MemberInfoGetting
{
public static string GetMemberName<T>(Expression<Func<T>> memberExpression)
{
MemberExpression expressionBody = (MemberExpression)memberExpression.Body;
return expressionBody.Member.Name;
}
}
To get name of a variable:
string testVariable = "value";
string nameOfTestVariable = MemberInfoGetting.GetMemberName(() => testVariable);
To get name of a parameter:
public class TestClass
{
public void TestMethod(string param1, string param2)
{
string nameOfParam1 = MemberInfoGetting.GetMemberName(() => param1);
}
}
You can use the nameof operator for parameters, variables and properties alike:
string testVariable = "value";
string nameOfTestVariable = nameof(testVariable);
You should have a look at Boost.Python. Here is the short introduction taken from their website:
The Boost Python Library is a framework for interfacing Python and C++. It allows you to quickly and seamlessly expose C++ classes functions and objects to Python, and vice-versa, using no special tools -- just your C++ compiler. It is designed to wrap C++ interfaces non-intrusively, so that you should not have to change the C++ code at all in order to wrap it, making Boost.Python ideal for exposing 3rd-party libraries to Python. The library's use of advanced metaprogramming techniques simplifies its syntax for users, so that wrapping code takes on the look of a kind of declarative interface definition language (IDL).
A slightly modified version of Sophie's answer which allows to output the *.d files to a different folder (I will only paste the interesting part that generates the dependency files):
$(OBJDIR)/%.o: %.cpp
# Generate dependency file
mkdir -p $(@D:$(OBJDIR)%=$(DEPDIR)%)
$(CXX) $(CXXFLAGS) $(CPPFLAGS) -MM -MT $@ $< -MF $(@:$(OBJDIR)/%.o=$(DEPDIR)/%.d)
# Generate object file
mkdir -p $(@D)
$(CXX) $(CXXFLAGS) $(CPPFLAGS) -c $< -o $@
Note that the parameter
-MT $@
is used to ensure that the targets (i.e. the object file names) in the generated *.d files contain the full path to the *.o files and not just the file name.
I don't know why this parameter is NOT needed when using -MMD in combination with -c (as in Sophie's version). In this combination it seems to write the full path of the *.o files into the *.d files. Without this combination, -MMD also writes only the pure file names without any directory components into the *.d files. Maybe somebody knows why -MMD writes the full path when combined with -c. I have not found any hint in the g++ man page.
For those looking a more modern approach, you can use the fetch API
. The following example shows how to download a PDF
file. It is easily done with the following code.
fetch(url, {
body: JSON.stringify(data),
method: 'POST',
headers: {
'Content-Type': 'application/json; charset=utf-8'
},
})
.then(response => response.blob())
.then(response => {
const blob = new Blob([response], {type: 'application/pdf'});
const downloadUrl = URL.createObjectURL(blob);
const a = document.createElement("a");
a.href = downloadUrl;
a.download = "file.pdf";
document.body.appendChild(a);
a.click();
})
I believe this approach to be much easier to understand than other XMLHttpRequest
solutions. Also, it has a similar syntax to the jQuery
approach, without the need to add any additional libraries.
Of course, I would advise checking to which browser you are developing, since this new approach won't work on IE. You can find the full browser compatibility list on the following [link][1].
Important: In this example I am sending a JSON request to a server listening on the given url
. This url
must be set, on my example I am assuming you know this part. Also, consider the headers needed for your request to work. Since I am sending a JSON, I must add the Content-Type
header and set it to application/json; charset=utf-8
, as to let the server know the type of request it will receive.
Dictionaries are specifically designed to do super fast key lookups. They are implemented as hashtables and the more entries the faster they are relative to other methods. Using the exception engine is only supposed to be done when your method has failed to do what you designed it to do because it is a large set of object that give you a lot of functionality for handling errors. I built an entire library class once with everything surrounded by try catch blocks once and was appalled to see the debug output which contained a seperate line for every single one of over 600 exceptions!
pip show works in python 3.7:
pip show selenium
Name: selenium
Version: 4.0.0a3
Summary: Python bindings for Selenium
Home-page: https://github.com/SeleniumHQ/selenium/
Author: UNKNOWN
Author-email: UNKNOWN
License: Apache 2.0
Location: c:\python3.7\lib\site-packages\selenium-4.0.0a3-py3.7.egg
Requires: urllib3
Required-by:
///UPDATED DEMO 2 WATCH SOLUTION////
I hope that is the solution you're looking for! DEMO1 DEMO2
With that solution the only scrollbar in the page is on your contents section in the middle! In that section build your structure with a sidebar or whatever you want!
You can do that with that code here:
<div class="navTop">
<h1>Title</h1>
<nav>Dynamic menu</nav>
</div>
<div class="container">
<section>THE CONTENTS GOES HERE</section>
</div>
<footer class="bottomFooter">
Footer
</footer>
With that css:
.navTop{
width:100%;
border:1px solid black;
float:left;
}
.container{
width:100%;
float:left;
overflow:scroll;
}
.bottomFooter{
float:left;
border:1px solid black;
width:100%;
}
And a bit of jquery:
$(document).ready(function() {
function setHeight() {
var top = $('.navTop').outerHeight();
var bottom = $('footer').outerHeight();
var totHeight = $(window).height();
$('section').css({
'height': totHeight - top - bottom + 'px'
});
}
$(window).on('resize', function() { setHeight(); });
setHeight();
});
DEMO 1
If you don't want jquery
<div class="row">
<h1>Title</h1>
<nav>NAV</nav>
</div>
<div class="row container">
<div class="content">
<div class="sidebar">
SIDEBAR
</div>
<div class="contents">
CONTENTS
</div>
</div>
<footer>Footer</footer>
</div>
CSS
*{
margin:0;padding:0;
}
html,body{
height:100%;
width:100%;
}
body{
display:table;
}
.row{
width: 100%;
background: yellow;
display:table-row;
}
.container{
background: pink;
height:100%;
}
.content {
display: block;
overflow:auto;
height:100%;
padding-bottom: 40px;
box-sizing: border-box;
}
footer{
position: fixed;
bottom: 0;
left: 0;
background: yellow;
height: 40px;
line-height: 40px;
width: 100%;
text-align: center;
}
.sidebar{
float:left;
background:green;
height:100%;
width:10%;
}
.contents{
float:left;
background:red;
height:100%;
width:90%;
overflow:auto;
}
DEMO 2
As already stated ??!??!
is essentially two trigraphs (??!
and ??!
again) mushed together that get replaced-translated to ||
, i.e the logical OR, by the preprocessor.
The following table containing every trigraph should help disambiguate alternate trigraph combinations:
Trigraph Replaces
??( [
??) ]
??< {
??> }
??/ \
??' ^
??= #
??! |
??- ~
Source: C: A Reference Manual 5th Edition
So a trigraph that looks like ??(??)
will eventually map to []
, ??(??)??(??)
will get replaced by [][]
and so on, you get the idea.
Since trigraphs are substituted during preprocessing you could use cpp
to get a view of the output yourself, using a silly trigr.c
program:
void main(){ const char *s = "??!??!"; }
and processing it with:
cpp -trigraphs trigr.c
You'll get a console output of
void main(){ const char *s = "||"; }
As you can notice, the option -trigraphs
must be specified or else cpp
will issue a warning; this indicates how trigraphs are a thing of the past and of no modern value other than confusing people who might bump into them.
As for the rationale behind the introduction of trigraphs, it is better understood when looking at the history section of ISO/IEC 646:
ISO/IEC 646 and its predecessor ASCII (ANSI X3.4) largely endorsed existing practice regarding character encodings in the telecommunications industry.
As ASCII did not provide a number of characters needed for languages other than English, a number of national variants were made that substituted some less-used characters with needed ones.
(emphasis mine)
So, in essence, some needed characters (those for which a trigraph exists) were replaced in certain national variants. This leads to the alternate representation using trigraphs comprised of characters that other variants still had around.
The code-snips below, "calculate" the width of the span-tag, appends "..." to it if its too long and reduces the text-length, until it fits in its parent (or until it has tried more than a thousand times)
CSS
div.places {
width : 100px;
}
div.places span {
white-space:nowrap;
overflow:hidden;
}
HTML
<div class="places">
<span>This is my house</span>
</div>
<div class="places">
<span>And my house are your house</span>
</div>
<div class="places">
<span>This placename is most certainly too wide to fit</span>
</div>
JavaScript (with jQuery)
// loops elements classed "places" and checks if their child "span" is too long to fit
$(".places").each(function (index, item) {
var obj = $(item).find("span");
if (obj.length) {
var placename = $(obj).text();
if ($(obj).width() > $(item).width() && placename.trim().length > 0) {
var limit = 0;
do {
limit++;
placename = placename.substring(0, placename.length - 1);
$(obj).text(placename + "...");
} while ($(obj).width() > $(item).width() && limit < 1000)
}
}
});
SELECT * FROM (SELECT * FROM tb1 ORDER BY signin DESC) GROUP BY id;
Priority Queue has some priority assigned to each element, The element with Highest priority appears at the Top Of Queue. Now, It depends on you how you want priority assigned to each of the elements. If you don't, the Java will do it the default way. The element with the least value is assigned the highest priority and thus is removed from the queue first. If there are several elements with the same highest priority, the tie is broken arbitrarily. You can also specify an ordering using Comparator in the constructor PriorityQueue(initialCapacity, comparator)
Example Code:
PriorityQueue<String> queue1 = new PriorityQueue<>();
queue1.offer("Oklahoma");
queue1.offer("Indiana");
queue1.offer("Georgia");
queue1.offer("Texas");
System.out.println("Priority queue using Comparable:");
while (queue1.size() > 0) {
System.out.print(queue1.remove() + " ");
}
PriorityQueue<String> queue2 = new PriorityQueue(4, Collections.reverseOrder());
queue2.offer("Oklahoma");
queue2.offer("Indiana");
queue2.offer("Georgia");
queue2.offer("Texas");
System.out.println("\nPriority queue using Comparator:");
while (queue2.size() > 0) {
System.out.print(queue2.remove() + " ");
}
Output:
Priority queue using Comparable:
Georgia Indiana Oklahoma Texas
Priority queue using Comparator:
Texas Oklahoma Indiana Georgia
Else, You can also define Custom Comparator:
import java.util.Comparator;
public class StringLengthComparator implements Comparator<String>
{
@Override
public int compare(String x, String y)
{
//Your Own Logic
}
}
.gitkeep
isn’t documented, because it’s not a feature of Git.
Git cannot add a completely empty directory. People who want to track empty directories in Git have created the convention of putting files called .gitkeep
in these directories. The file could be called anything; Git assigns no special significance to this name.
There is a competing convention of adding a .gitignore
file to the empty directories to get them tracked, but some people see this as confusing since the goal is to keep the empty directories, not ignore them; .gitignore
is also used to list files that should be ignored by Git when looking for untracked files.
simply modify your home with the command:
usermod -d /newhome username
In python 3 or above, math class has the following functions
import math
math.log2(x)
math.log10(x)
math.log1p(x)
or you can generally use math.log(x, base)
for any base you want.
Since some answers do not allow for child controls to be draggable, I've created a little helper class. It should be passed the top level form. Can be made more generic if desired.
class MouseDragger
{
private readonly Form _form;
private Point _mouseDown;
protected void OnMouseDown(object sender, MouseEventArgs e)
{
_mouseDown = e.Location;
}
protected void OnMouseMove(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
int dx = e.Location.X - _mouseDown.X;
int dy = e.Location.Y - _mouseDown.Y;
_form.Location = new Point(_form.Location.X + dx, _form.Location.Y + dy);
}
}
public MouseDragger(Form form)
{
_form = form;
MakeDraggable(_form);
}
private void MakeDraggable(Control control)
{
var type = control.GetType();
if (typeof(Button).IsAssignableFrom(type))
{
return;
}
control.MouseDown += OnMouseDown;
control.MouseMove += OnMouseMove;
foreach (Control child in control.Controls)
{
MakeDraggable(child);
}
}
}
I think the question is incomplete. if you meant that you wish to get the type information of some typeclass then below:
If you wish to print as you have specified then:
scala> def manOf[T: Manifest](t: T): Manifest[T] = manifest[T]
manOf: [T](t: T)(implicit evidence$1: Manifest[T])Manifest[T]
scala> val x = List(1,2,3)
x: List[Int] = List(1, 2, 3)
scala> println(manOf(x))
scala.collection.immutable.List[Int]
If you are in repl mode then
scala> :type List(1,2,3)
List[Int]
Or if you just wish to know what the class type then as @monkjack explains "string".getClass
might solve the purpose
In Python, you wouldn't use indexes for this at all, but just deal with the values—[value for value in a if value > 2]
. Usually dealing with indexes means you're not doing something the best way.
If you do need an API similar to Matlab's, you would use numpy, a package for multidimensional arrays and numerical math in Python which is heavily inspired by Matlab. You would be using a numpy array instead of a list.
>>> import numpy
>>> a = numpy.array([1, 2, 3, 1, 2, 3])
>>> a
array([1, 2, 3, 1, 2, 3])
>>> numpy.where(a > 2)
(array([2, 5]),)
>>> a > 2
array([False, False, True, False, False, True], dtype=bool)
>>> a[numpy.where(a > 2)]
array([3, 3])
>>> a[a > 2]
array([3, 3])
I couldn't find a solution that did exactly what I needed. I wanted clean and tiny code so I came up with this:
(Set once in your master.js and invoke when required.)
PURE JAVASCRIPT
function timeNow(i) {_x000D_
var d = new Date(),_x000D_
h = (d.getHours()<10?'0':'') + d.getHours(),_x000D_
m = (d.getMinutes()<10?'0':'') + d.getMinutes();_x000D_
i.value = h + ':' + m;_x000D_
}
_x000D_
<a onclick="timeNow(test1)" href="#">SET TIME</a>_x000D_
<input id="test1" type="time" value="10:40" />
_x000D_
UPDATE
There is now sufficient browser support to simply use: toLocaleTimeString
For html5 type time
the format must be hh:mm
.
function timeNow(i) {_x000D_
i.value = new Date().toLocaleTimeString([], {hour: '2-digit', minute:'2-digit'});_x000D_
}
_x000D_
<a onclick="timeNow(test1)" href="#">SET TIME</a>_x000D_
<input id="test1" type="time" value="10:40" />
_x000D_
If the methods you used isn't working well with objects involving data types like Date, try this
Import _
import * as _ from 'lodash';
Deep clone object
myObjCopy = _.cloneDeep(myObj);
How would you expect recode to know that a file is Windows-1252? In theory, I believe any file is a valid Windows-1252 file, as it maps every possible byte to a character.
Now there are certainly characteristics which would strongly suggest that it's UTF-8 - if it starts with the UTF-8 BOM, for example - but they wouldn't be definitive.
One option would be to detect whether it's actually a completely valid UTF-8 file first, I suppose... again, that would only be suggestive.
I'm not familiar with the recode tool itself, but you might want to see whether it's capable of recoding a file from and to the same encoding - if you do this with an invalid file (i.e. one which contains invalid UTF-8 byte sequences) it may well convert the invalid sequences into question marks or something similar. At that point you could detect that a file is valid UTF-8 by recoding it to UTF-8 and seeing whether the input and output are identical.
Alternatively, do this programmatically rather than using the recode utility - it would be quite straightforward in C#, for example.
Just to reiterate though: all of this is heuristic. If you really don't know the encoding of a file, nothing is going to tell you it with 100% accuracy.
Add div wrapper
<div id=myForm>
<select name=countries>
<option value=af>Afghanistan</option>
<option value=ax>Åland Islands</option>
...
<option value=gs>South Georgia and the South Sandwich Islands</option>
...
</select>
</div>
and then write CSS
#myForm select {
width:200px; }
#myForm select:focus {
width:auto; }
Hope this will help.
Ionu? G. Stan wrote a great answer but it was a bit too complex for me to grasp. So, I found an even simpler explanation of the same concepts at https://teamtreehouse.com/community/mathfloor-mathrandom-max-min-1-min-explanation by Jason Anello.
NOTE: The only important thing you should know before reading Jason's explanation is a definition of "truncate". He uses that term when describing Math.floor()
. Oxford dictionary defines "truncate" as:
Shorten (something) by cutting off the top or end.
There is a bug in version 2.2 that makes it impossible to scroll the ConstraintLayout. I guess it still exists. You can use LinearLayout or RelativeLayout alternatively.
Also, check out: Is it possible to put a constraint layout inside a ScrollView.
Solved the issue. Change your class name to make only the first letter capitalized. so if you got something like 'MyClass' change it to 'Myclass'. apply it to both the file name and class name.
Do you need it to be;
Use replace method of string like the following way:
String x="\"abcd";
String z=x.replace("\"", "");
System.out.println(z);
Output:
abcd
For recent versions of SQL Server Management Studio Write the in a query editor and Do "Alt" + "F1"
Try this:
echo mysql_result($result, 0);
This is enough because you are only fetching one field of one row.
The algorithm is fast, but it has a serious flaw:
>>> sorted(get_primes(530))
[2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73,
79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163,
167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251,
257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349,
353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443,
449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 527, 529]
>>> 17*31
527
>>> 23*23
529
You assume that numbers.pop()
would return the smallest number in the set, but this is not guaranteed at all. Sets are unordered and pop()
removes and returns an arbitrary element, so it cannot be used to select the next prime from the remaining numbers.
I did a test on MS SQL 2005 using the following tables: A 400K rows, B 26K rows and C 450 rows.
The estimated query plan indicated that the basic inner join would be 3 times slower than the nested sub-queries, however when actually running the query, the basic inner join was twice as fast as the nested queries, The basic inner join took 297ms on very minimal server hardware.
What database are you using, and what times are you seeing? I'm thinking if you are seeing poor performance then it is probably an index problem.
I used a variant of Alex's - but needed to to convert the param appearing multiple times to an array. There seem to be many options. I didn't want rely on another library for something this simple. I suppose one of the other options posted here may be better - I adapted Alex's because of the straight forwardness.
parseQueryString = function() {
var str = window.location.search;
var objURL = {};
// local isArray - defer to underscore, as we are already using the lib
var isArray = _.isArray
str.replace(
new RegExp( "([^?=&]+)(=([^&]*))?", "g" ),
function( $0, $1, $2, $3 ){
if(objURL[ $1 ] && !isArray(objURL[ $1 ])){
// if there parameter occurs more than once, convert to an array on 2nd
var first = objURL[ $1 ]
objURL[ $1 ] = [first, $3]
} else if(objURL[ $1 ] && isArray(objURL[ $1 ])){
// if there parameter occurs more than once, add to array after 2nd
objURL[ $1 ].push($3)
}
else
{
// this is the first instance
objURL[ $1 ] = $3;
}
}
);
return objURL;
};
On Single Server, MongoDb would not be any faster than mysql MyISAM on both read and write, given table/doc
sizes are small 1 GB to 20 GB.
MonoDB will be faster on Parallel Reduce on Multi-Node clusters, where Mysql can NOT scale horizontally.
Just adding for easy implementation. You can simply make a form and then make the submit button hidden:
For example:
<form action="submit.php" method="post">
Name : <input type="text" name="test">
<input type="submit" style="display: none;">
</form>
You can't find RMSE function directly in SKLearn. But , instead of manually doing sqrt , there is another standard way using sklearn. Apparently, Sklearn's mean_squared_error itself contains a parameter called as "squared" with default value as true .If we set it to false ,the same function will return RMSE instead of MSE.
# code changes implemented by Esha Prakash
from sklearn.metrics import mean_squared_error
rmse = mean_squared_error(y_true, y_pred , squared=False)
Using PowerShell, you can use the following
Get-Service | Where-Object {$_.displayName.StartsWith("NATION-")} | Select name
This will show a list off all services which displayname starts with "NATION-".
You can also directly stop or start the services;
Get-Service | Where-Object {$_.displayName.StartsWith("NATION-")} | Stop-Service
Get-Service | Where-Object {$_.displayName.StartsWith("NATION-")} | Start-Service
or simply
Get-Service | Where-Object {$_.displayName.StartsWith("NATION-")} | Restart-Service
You can also use openssl
to accomplish the same thing:
$ openssl pkcs12 -nokeys -info \
-in </path/to/file.pfx> \
-passin pass:<pfx's password>
MAC Iteration 2048
MAC verified OK
PKCS7 Encrypted data: pbeWithSHA1And40BitRC2-CBC, Iteration 2048
Certificate bag
Bag Attributes
localKeyID: XX XX XX XX XX XX XX XX XX XX XX XX XX 48 54 A0 47 88 1D 90
friendlyName: jedis-server
subject=/C=US/ST=NC/L=Raleigh/O=XXX Security/OU=XXX/CN=something1
issuer=/C=US/ST=NC/L=Raleigh/O=XXX Security/OU=XXXX/CN=something1
-----BEGIN CERTIFICATE-----
...
...
...
-----END CERTIFICATE-----
PKCS7 Data
Shrouded Keybag: pbeWithSHA1And3-KeyTripleDES-CBC, Iteration 2048
You can add simple white space with quotes sign: {" "}
Also you can use template literals, which allow to insert, embedd expressions (code inside curly braces):
`${2 * a + b}.?!=-` // Notice this sign " ` ",its not normal quotes.
You can run MSSQL and .NET Core on Linux, and hence inside Linux containers, nowadays.
See: https://hub.docker.com/r/microsoft/mssql-server-linux/
Also: https://hub.docker.com/r/microsoft/dotnet/
The direct question to your answer, is of course, unless there is a version compiled especially for Linux, no.
you could use ⊕ or ⊗
Here's an example of strtok
usage, keep in mind that strtok
is destructive of its input string (and therefore can't ever be used on a string constant
char *p = strtok(str, " ");
while(p != NULL) {
printf("%s\n", p);
p = strtok(NULL, " ");
}
Basically the thing to note is that passing a NULL
as the first parameter to strtok
tells it to get the next token from the string it was previously tokenizing.
I have had this problem also using excel 2007 with a foobar.xlsm (macro enabled ) workbook which would get the "Code execution has been interrupted" by simply trying to close the workbook on the red X in the right corner with no macros running at all, or any "initialize" form, workbook, or workheet macros either. The options I got were "End" or "Continue", Debug was always greyed out. I did as a previous poster suggested Control Panel->Programs and Features-> right click "Microsoft Office Proffesional 2007" (in my case) ->change->repair.
This resolved the problem for me. I might add this happened soon after a MS update and I also found an addin in Excel called "Team Foundation" from Microsoft which I certainly didnt install voluntarily
Edit: For a better approximation of Alejandro's answer, see below.
I know this is an old question, but wanted to add something to Alejandro's anwser: If you want a nice smoothed image without using py-sphviewer you can instead use np.histogram2d
and apply a gaussian filter (from scipy.ndimage.filters
) to the heatmap:
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.cm as cm
from scipy.ndimage.filters import gaussian_filter
def myplot(x, y, s, bins=1000):
heatmap, xedges, yedges = np.histogram2d(x, y, bins=bins)
heatmap = gaussian_filter(heatmap, sigma=s)
extent = [xedges[0], xedges[-1], yedges[0], yedges[-1]]
return heatmap.T, extent
fig, axs = plt.subplots(2, 2)
# Generate some test data
x = np.random.randn(1000)
y = np.random.randn(1000)
sigmas = [0, 16, 32, 64]
for ax, s in zip(axs.flatten(), sigmas):
if s == 0:
ax.plot(x, y, 'k.', markersize=5)
ax.set_title("Scatter plot")
else:
img, extent = myplot(x, y, s)
ax.imshow(img, extent=extent, origin='lower', cmap=cm.jet)
ax.set_title("Smoothing with $\sigma$ = %d" % s)
plt.show()
Produces:
The scatter plot and s=16 plotted on top of eachother for Agape Gal'lo (click for better view):
One difference I noticed with my gaussian filter approach and Alejandro's approach was that his method shows local structures much better than mine. Therefore I implemented a simple nearest neighbour method at pixel level. This method calculates for each pixel the inverse sum of the distances of the n
closest points in the data. This method is at a high resolution pretty computationally expensive and I think there's a quicker way, so let me know if you have any improvements.
Update: As I suspected, there's a much faster method using Scipy's scipy.cKDTree
. See Gabriel's answer for the implementation.
Anyway, here's my code:
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.cm as cm
def data_coord2view_coord(p, vlen, pmin, pmax):
dp = pmax - pmin
dv = (p - pmin) / dp * vlen
return dv
def nearest_neighbours(xs, ys, reso, n_neighbours):
im = np.zeros([reso, reso])
extent = [np.min(xs), np.max(xs), np.min(ys), np.max(ys)]
xv = data_coord2view_coord(xs, reso, extent[0], extent[1])
yv = data_coord2view_coord(ys, reso, extent[2], extent[3])
for x in range(reso):
for y in range(reso):
xp = (xv - x)
yp = (yv - y)
d = np.sqrt(xp**2 + yp**2)
im[y][x] = 1 / np.sum(d[np.argpartition(d.ravel(), n_neighbours)[:n_neighbours]])
return im, extent
n = 1000
xs = np.random.randn(n)
ys = np.random.randn(n)
resolution = 250
fig, axes = plt.subplots(2, 2)
for ax, neighbours in zip(axes.flatten(), [0, 16, 32, 64]):
if neighbours == 0:
ax.plot(xs, ys, 'k.', markersize=2)
ax.set_aspect('equal')
ax.set_title("Scatter Plot")
else:
im, extent = nearest_neighbours(xs, ys, resolution, neighbours)
ax.imshow(im, origin='lower', extent=extent, cmap=cm.jet)
ax.set_title("Smoothing over %d neighbours" % neighbours)
ax.set_xlim(extent[0], extent[1])
ax.set_ylim(extent[2], extent[3])
plt.show()
Result:
You have mentioned "user" twice in your FROM clause. You must provide a table alias to at least one mention so each mention of user. can be pinned to one or the other instance:
FROM article INNER JOIN section
ON article.section_id = section.id
INNER JOIN category ON article.category_id = category.id
INNER JOIN user **AS user1** ON article.author\_id = **user1**.id
LEFT JOIN user **AS user2** ON article.modified\_by = **user2**.id
WHERE article.id = '1'
(You may need something different - I guessed which user is which, but the SQL engine won't guess.)
Also, maybe you only needed one "user". Who knows?
I know this is a relatively old thread, but I thought I'd throw what I did out there.
I wanted attribute-mapping to work globally. Either you match the property name (aka default) or you match a column attribute on the class property. I also didn't want to have to set this up for every single class I was mapping to. As such, I created a DapperStart class that I invoke on app start:
public static class DapperStart
{
public static void Bootstrap()
{
Dapper.SqlMapper.TypeMapProvider = type =>
{
return new CustomPropertyTypeMap(typeof(CreateChatRequestResponse),
(t, columnName) => t.GetProperties().FirstOrDefault(prop =>
{
return prop.Name == columnName || prop.GetCustomAttributes(false).OfType<ColumnAttribute>()
.Any(attr => attr.Name == columnName);
}
));
};
}
}
Pretty simple. Not sure what issues I'll run into yet as I just wrote this, but it works.
Yes, I'm answering my own question, but I haven't found it here yet and thought this was a rather slick thing:
...in VB.NET:
String.Join(",", CType(TargetArrayList.ToArray(Type.GetType("System.String")), String()))
...in C#
string.Join(",", (string[])TargetArrayList.ToArray(Type.GetType("System.String")))
The only "gotcha" to these is that the ArrayList must have the items stored as Strings if you're using Option Strict to make sure the conversion takes place properly.
EDIT: If you're using .net 2.0 or above, simply create a List(Of String) type object and you can get what you need with. Many thanks to Joel for bringing this up!
String.Join(",", TargetList.ToArray())
For .NET Core 2.0, things have changed a little bit. The startup constructor takes a Configuration object as a parameter, So using the ConfigurationBuilder
is not required. Here is mine:
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.Configure<StorageOptions>(Configuration.GetSection("AzureStorageConfig"));
}
My POCO is the StorageOptions
object mentioned at the top:
namespace FictionalWebApp.Models
{
public class StorageOptions
{
public String StorageConnectionString { get; set; }
public String AccountName { get; set; }
public String AccountKey { get; set; }
public String DefaultEndpointsProtocol { get; set; }
public String EndpointSuffix { get; set; }
public StorageOptions() { }
}
}
And the configuration is actually a subsection of my appsettings.json
file, named AzureStorageConfig
:
{
"ConnectionStrings": {
"DefaultConnection": "Server=(localdb)\\mssqllocaldb;",
"StorageConnectionString": "DefaultEndpointsProtocol=https;AccountName=fictionalwebapp;AccountKey=Cng4Afwlk242-23=-_d2ksa69*2xM0jLUUxoAw==;EndpointSuffix=core.windows.net"
},
"Logging": {
"IncludeScopes": false,
"LogLevel": {
"Default": "Warning"
}
},
"AzureStorageConfig": {
"AccountName": "fictionalwebapp",
"AccountKey": "Cng4Afwlk242-23=-_d2ksa69*2xM0jLUUxoAw==",
"DefaultEndpointsProtocol": "https",
"EndpointSuffix": "core.windows.net",
"StorageConnectionString": "DefaultEndpointsProtocol=https;AccountName=fictionalwebapp;AccountKey=Cng4Afwlk242-23=-_d2ksa69*2xM0jLUUxoAw==;EndpointSuffix=core.windows.net"
}
}
The only thing I'll add is that, since the constructor has changed, I haven't tested whether something extra needs to be done for it to load appsettings.<environmentname>.json
as opposed to appsettings.json
.
Definitely in Modules.
Since the tooling is so poor in primitive systems such as Excel VBA, best practices, obsessive code hygiene and religious following of conventions are important, especially if you're trying to do anything remotely complex with it.
This article explains the intended usages of different types of code containers. It doesn't qualify why these distinctions should be made, but I believe most developers trying to develop serious applications on the Excel platform follow them.
There's also a list of VBA coding conventions I've found helpful, although they're not directly related to Excel VBA. Please ignore the crazy naming conventions they have on that site, it's all crazy hungarian.
input()
by default takes the input in form of strings.
if (0<= vote <=24):
vote takes a string input (suppose 4
,5
,etc) and becomes uncomparable.
The correct way is: vote = int(input("Enter your message")
will convert the input to integer (4
to 4 or 5
to 5 depending on the input)
Since Java 11, java
command line tool has been able to run a single-file source-code directly. e.g.
java HelloWorld.java
This was an enhancement with JEP 330: https://openjdk.java.net/jeps/330
For the details of the usage and the limitations, see the manual of your Java implementation such as one provided by Oracle: https://docs.oracle.com/en/java/javase/11/tools/java.html
Let's suppose you want to find all int
not preceded by unsigned
:
With support for negative look-behind:
(?<!unsigned )int
Without support for negative look-behind:
((?!unsigned ).{9}|^.{0,8})int
Basically idea is to grab n preceding characters and exclude match with negative look-ahead, but also match the cases where there's no preceeding n characters. (where n is length of look-behind).
So the regex in question:
(?<!filename)\.js$
would translate to:
((?!filename).{8}|^.{0,7})\.js$
You might need to play with capturing groups to find exact spot of the string that interests you or you want't to replace specific part with something else.
You can write
i = 5 + tup()[0]
Tuples can be indexed just like lists.
The main difference between tuples and lists is that tuples are immutable - you can't set the elements of a tuple to different values, or add or remove elements like you can from a list. But other than that, in most situations, they work pretty much the same.
This indicates the linux has delivered a SIGTERM
to your process. This is usually at the request of some other process (via kill()
) but could also be sent by your process to itself (using raise()
). This signal requests an orderly shutdown of your process.
If you need a quick cheatsheet of signal numbers, open a bash shell and:
$ kill -l
1) SIGHUP 2) SIGINT 3) SIGQUIT 4) SIGILL
5) SIGTRAP 6) SIGABRT 7) SIGBUS 8) SIGFPE
9) SIGKILL 10) SIGUSR1 11) SIGSEGV 12) SIGUSR2
13) SIGPIPE 14) SIGALRM 15) SIGTERM 16) SIGSTKFLT
17) SIGCHLD 18) SIGCONT 19) SIGSTOP 20) SIGTSTP
21) SIGTTIN 22) SIGTTOU 23) SIGURG 24) SIGXCPU
25) SIGXFSZ 26) SIGVTALRM 27) SIGPROF 28) SIGWINCH
29) SIGIO 30) SIGPWR 31) SIGSYS 34) SIGRTMIN
35) SIGRTMIN+1 36) SIGRTMIN+2 37) SIGRTMIN+3 38) SIGRTMIN+4
39) SIGRTMIN+5 40) SIGRTMIN+6 41) SIGRTMIN+7 42) SIGRTMIN+8
43) SIGRTMIN+9 44) SIGRTMIN+10 45) SIGRTMIN+11 46) SIGRTMIN+12
47) SIGRTMIN+13 48) SIGRTMIN+14 49) SIGRTMIN+15 50) SIGRTMAX-14
51) SIGRTMAX-13 52) SIGRTMAX-12 53) SIGRTMAX-11 54) SIGRTMAX-10
55) SIGRTMAX-9 56) SIGRTMAX-8 57) SIGRTMAX-7 58) SIGRTMAX-6
59) SIGRTMAX-5 60) SIGRTMAX-4 61) SIGRTMAX-3 62) SIGRTMAX-2
63) SIGRTMAX-1 64) SIGRTMAX
You can determine the sender by using an appropriate signal handler like:
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
void sigterm_handler(int signal, siginfo_t *info, void *_unused)
{
fprintf(stderr, "Received SIGTERM from process with pid = %u\n",
info->si_pid);
exit(0);
}
int main (void)
{
struct sigaction action = {
.sa_handler = NULL,
.sa_sigaction = sigterm_handler,
.sa_mask = 0,
.sa_flags = SA_SIGINFO,
.sa_restorer = NULL
};
sigaction(SIGTERM, &action, NULL);
sleep(60);
return 0;
}
Notice that the signal handler also includes a call to exit()
. It's also possible for your program to continue to execute by ignoring the signal, but this isn't recommended in general (if it's a user doing it there's a good chance it will be followed by a SIGKILL if your process doesn't exit, and you lost your opportunity to do any cleanup then).
Try obuildfactory.
There is need to modify these scripts (contains error and don't exactly do the "thing" required), i will upload mine scripts forked from obuildfactory in next few days. and so i will also update my answer accordingly.
Until then enjoy, sir :)
This should do the trick:
pw_bytes.decode("utf-8")
You can just use numpy arrays. Look at the numpy for matlab users page for a detailed overview of the pros and cons of arrays w.r.t. matrices.
As I mentioned in the comment, having to use the dot()
function or method for mutiplication of vectors is the biggest pitfall. But then again, numpy arrays are consistent. All operations are element-wise. So adding or subtracting arrays and multiplication with a scalar all work as expected of vectors.
Edit2: Starting with Python 3.5 and numpy 1.10 you can use the @
infix-operator for matrix multiplication, thanks to pep 465.
Edit: Regarding your comment:
Yes. The whole of numpy is based on arrays.
Yes. linalg.norm(v)
is a good way to get the length of a vector. But what you get depends on the possible second argument to norm! Read the docs.
To normalize a vector, just divide it by the length you calculated in (2). Division of arrays by a scalar is also element-wise.
An example in ipython:
In [1]: import math
In [2]: import numpy as np
In [3]: a = np.array([4,2,7])
In [4]: np.linalg.norm(a)
Out[4]: 8.3066238629180749
In [5]: math.sqrt(sum([n**2 for n in a]))
Out[5]: 8.306623862918075
In [6]: b = a/np.linalg.norm(a)
In [7]: np.linalg.norm(b)
Out[7]: 1.0
Note that In [5]
is an alternative way to calculate the length. In [6]
shows normalizing the vector.
You can find the full list here.
\t
Insert a tab in the text at this point.\b
Insert a backspace in the text at this point.\n
Insert a newline in the text at this point.\r
Insert a carriage return in the text at this point.\f
Insert a formfeed in the text at this point.\'
Insert a single quote character in the text at this point.\"
Insert a double quote character in the text at this point.\\
Insert a backslash character in the text at this point.I had met a similar problem, after i add a scope property of servlet dependency in pom.xml
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
Then it was ok . maybe that will help you.
views.py
from django.contrib import messages
def view_name(request):
if request.method == 'POST':
form = form_class(request.POST)
if form.is_valid():
return HttpResponseRedirect('/thanks'/)
else:
messages.error(request, "Error")
return render(request, 'page.html', {'form':form_class()})
If you want to show the errors of the form other than that not valid just put {{form.as_p}} like what I did below
page.html
<html>
<head>
<script>
{% if messages %}
{% for message in messages %}
alert('{{message}}')
{% endfor %}
{% endif %}
</script>
</head>
<body>
{{form.as_p}}
</body>
</html>
It also helps you to stop using your mouse so much!
A possible way is to use the modulo operator to only let the values stay in the int32 range, and then cast it to int.
var intValue= (int)(longValue % Int32.MaxValue);
Since GDB 7.5 you can use these native Convenience Functions:
$_memeq(buf1, buf2, length)
$_regex(str, regex)
$_streq(str1, str2)
$_strlen(str)
Seems quite less problematic than having to execute a "foreign" strcmp()
on the process' stack each time the breakpoint is hit. This is especially true for debugging multithreaded processes.
Note your GDB needs to be compiled with Python support, which is not an issue with current linux distros. To be sure, you can check it by running
show configuration
inside GDB and searching for--with-python
. This little oneliner does the trick, too:$ gdb -n -quiet -batch -ex 'show configuration' | grep 'with-python' --with-python=/usr (relocatable)
For your demo case, the usage would be
break <where> if $_streq(x, "hello")
or, if your breakpoint already exists and you just want to add the condition to it
condition <breakpoint number> $_streq(x, "hello")
$_streq
only matches the whole string, so if you want something more cunning you should use $_regex
, which supports the Python regular expression syntax.
First create UIImageView then add image in UIImageView .
var imageView : UIImageView
imageView = UIImageView(frame:CGRectMake(10, 50, 100, 300));
imageView.image = UIImage(named:"image.jpg")
self.view.addSubview(imageView)
Try with mysql_fetch_assoc .It will returns an associative array of strings that corresponds to the fetched row, or FALSE if there are no more rows. Furthermore, you have to add LIMIT 1 if you really expect single row.
$result = mysql_query("SELECT option_value FROM wp_10_options WHERE option_name='homepage' LIMIT 1");
$row = mysql_fetch_assoc($result);
echo $row['option_value'];
Recent versions of VSCode (e.g., Version 1.29 at the time of posting this answer) allow you to change the Tab/Space size to 1
(or any number between 1
and 8
). You may change the Tab/Space size from the bottom-right corner as shown in the below image:
Click on Spaces:4
. Then, select Indent Using Spaces or Indent Using Tabs and choose the size 1.
Hope it helps.
easy just use this command where you .git folder placed
git config --get remote.origin.url
if you are connected to network
git remote show origin
it will show you the URL that a local Git repository was originally cloned from.
hope this help
Here is another variant I posted on related question. The REGEX
check to see if you are out of bounds is useful, so for a table column you would put it in the where clause.
SET @Array = 'one,two,three,four';
SET @ArrayIndex = 2;
SELECT CASE
WHEN @Array REGEXP CONCAT('((,).*){',@ArrayIndex,'}')
THEN SUBSTRING_INDEX(SUBSTRING_INDEX(@Array,',',@ArrayIndex+1),',',-1)
ELSE NULL
END AS Result;
SUBSTRING_INDEX(string, delim, n)
returns the first nSUBSTRING_INDEX(string, delim, -1)
returns the last onlyREGEXP '((delim).*){n}'
checks if there are n delimiters (i.e. you are in bounds).focus()
and then .blur()
something else arbitrary on your page. Since only one element can have the focus, it is transferred to that element and then removed.
Add hadoop.tmp.dir property in core-site.xml
<configuration>
<property>
<name>fs.defaultFS</name>
<value>hdfs://localhost:9000</value>
</property>
<property>
<name>hadoop.tmp.dir</name>
<value>/home/yourname/hadoop/tmp/hadoop-${user.name}</value>
</property>
</configuration>
and format hdfs (hadoop 2.7.1):
$ hdfs namenode -format
The default value in core-default.xml is /tmp/hadoop-${user.name}, which will be deleted after reboot.
Try deleting your ASO files.
ASO files are cached compiled versions of your class files. Although the IDE is a lot better at letting go of old caches when changes are made, sometimes you have to manually delete them. To delete ASO files: Control>Delete ASO Files.
This is also the cause of the "I-am-not-seeing-my-changes-so-let-me-add-a-trace-now-everything-works" bug that was introduced in CS3.
Open angular.json file and find budgets
keyword.
It should look like:
"budgets": [
{
"type": "initial",
"maximumWarning": "2mb",
"maximumError": "5mb"
}
]
As you’ve probably guessed you can increase the maximumWarning
value to prevent this warning, i.e.:
"budgets": [
{
"type": "initial",
"maximumWarning": "4mb", <===
"maximumError": "5mb"
}
]
A performance budget is a group of limits to certain values that affect site performance, that may not be exceeded in the design and development of any web project.
In our case budget is the limit for bundle sizes.
See also:
I've looked at the timeit module, but it seems it's only for small snippets of code. I want to time the whole program.
$ python -mtimeit -n1 -r1 -t -s "from your_module import main" "main()"
It runs your_module.main()
function one time and print the elapsed time using time.time()
function as a timer.
To emulate /usr/bin/time
in Python see Python subprocess with /usr/bin/time: how to capture timing info but ignore all other output?.
To measure CPU time (e.g., don't include time during time.sleep()
) for each function, you could use profile
module (cProfile
on Python 2):
$ python3 -mprofile your_module.py
You could pass -p
to timeit
command above if you want to use the same timer as profile
module uses.
You can try the enable/disable methods instead of using the option method:
$("#txtSearch").datepicker("enable");
$("#txtSearch").datepicker("disable");
This disables the entire textbox. So may be you can use datepicker.destroy()
instead:
$(document).ready(function() {
$("#ddlSearchType").change(function() {
if ($(this).val() == "Required Date" || $(this).val() == "Submitted Date") {
$("#txtSearch").datepicker();
}
else {
$("#txtSearch").datepicker("destroy");
}
}).change();
});
I'll suggest using unless
and blank
to check is empty or not.
Example :
unless a.blank?
a = "Is not empty"
end
This will know 'a' empty or not. If 'a' is blank then the below code will not run.
For those with shell access here is a little command to find all files with the BOM set in the public_html directory - be sure to change it to what your correct path on your server is
Code:
grep -rl $'\xEF\xBB\xBF' /home/username/public_html
and if you are comfortable with the vi editor, open the file in vi:
vi /path-to-file-name/file.php
And enter the command to remove the BOM:
set nobomb
Save the file:
wq
Why would you use it if you already knew the class and were going to cast it? Why not just do it the old fashioned way and make the class like you always make it? There's no advantage to this over the way it's done normally. Is there a way to take the text and operate on it thusly:
label1.txt = "Pizza"
Magic(label1.txt) p = new Magic(lablel1.txt)(arg1, arg2, arg3);
p.method1();
p.method2();
If I already know its a Pizza there's no advantage to:
p = (Pizza)somefancyjunk("Pizza"); over
Pizza p = new Pizza();
but I see a huge advantage to the Magic method if it exists.
There is no way how to declare an unsigned long or int in Java 8 or Java 9. But some methods treat them as if they were unsigned, for example:
static long values = Long.parseUnsignedLong("123456789012345678");
but this is not declaration of the variable.
if Matcher is initialized with str
, after the match, you can get the part after the match with
str.substring(matcher.end())
Sample Code:
final String str = "Some lame sentence that is awesome";
final Matcher matcher = Pattern.compile("sentence").matcher(str);
if(matcher.find()){
System.out.println(str.substring(matcher.end()).trim());
}
Output:
that is awesome
http://ideone.com/ideone/Index/submit/ you can run your java code
I've forked a CodePen demo that had the same problem with embedding inline SVG into CSS. A solution that works with SCSS is to build a simple url-encoding function.
A string replacement function can be created from the built-in str-slice, str-index functions (see css-tricks, thanks to Hugo Giraudel).
Then, just replace %
,<
,>
,"
,'
, with the
%xx
codes:
@function svg-inline($string){
$result: str-replace($string, "<svg", "<svg xmlns='http://www.w3.org/2000/svg'");
$result: str-replace($result, '%', '%25');
$result: str-replace($result, '"', '%22');
$result: str-replace($result, "'", '%27');
$result: str-replace($result, ' ', '%20');
$result: str-replace($result, '<', '%3C');
$result: str-replace($result, '>', '%3E');
@return "data:image/svg+xml;utf8," + $result;
}
$mySVG: svg-inline("<svg>...</svg>");
html {
height: 100vh;
background: url($mySVG) 50% no-repeat;
}
There is also a image-inline
helper function available in Compass, but since it is not supported in CodePen, this solution might probably be useful.
Demo on CodePen: http://codepen.io/terabaud/details/PZdaJo/
Indexed fields (fields with numerical keys) are stored as a holy array inside the object. Therefore lookup time is O(1)
Same for a lookup array it's O(1)
Iterating through an array of objects and testing their ids against the provided one is a O(n) operation.
There's a pretty good explanation of first level caching on the Streamline Logic blog.
Basically, first level caching happens on a per session basis where as second level caching can be shared across multiple sessions.
for VS2008 with feature pack update, shared_ptr can be found under namespace std::tr1.
std::tr1::shared_ptr<int> MyIntSmartPtr = new int;
of
if you had boost installation path (for example @ C:\Program Files\Boost\boost_1_40_0
) added to your IDE settings:
#include <boost/shared_ptr.hpp>
Here very simple method
let data = string.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)
For python3.5.3, pip3 is also installed when you install python. When you install it you may not select the add to path. Then you can find where the pip3 located and add it to path manually.
Just Improved with Levi answer above -
Rack::Utils.parse_query URI("http://example.com?par=hello&par2=bye").query
For a string like above url, it will return
{ "par" => "hello", "par2" => "bye" }
Case-statements automatically fall through if you don't specify otherwise (by writing break). Therefor you can write
switch(myvar)
{
case 2:
case 5:
{
//your code
break;
}
// etc... }
The ExecuteNonQuery
method is used for SQL statements that are not queries, such as INSERT
, UPDATE
, ... You want to use ExecuteScalar
or ExecuteReader
if you expect your statement to return results (i.e. a query).
I had a similar problem recently, and google landed me here, so I put this answer here in case others land here as well, for completeness.
I noticed that when I had badly formatted html, I was actually having all my html tags stripped out, with just the non-tag content remaining. I particularly had a table with a missing opening table tag, and then all my html tags from the entire string where ripped out completely.
So, if the above doesn't work, and you're still scratching your head, then also check you html for being valid.
I notice even after I got it working, MVC was adding tbody tags where I had none. This tells me there is clean up happening (MVC 5), and that when it can't happen, it strips out all/some tags.
if you are using XDocument.Load(url);
to fetch xml from another domain, it's possible that the host will reject the request and return and unexpected (non-xml) result, which results in the above XmlException
See my solution to this eventuality here: XDocument.Load(feedUrl) returns "Data at the root level is invalid. Line 1, position 1."
malloc
is for allocating memory on the free-store. If you have a string literal that you do not want to modify the following is ok:
char *literal = "foo";
However, if you want to be able to modify it, use it as a buffer to hold a line of input and so on, use malloc
:
char *buf = (char*) malloc(BUFSIZE); /* define BUFSIZE before */
// ...
free(buf);
I think it is platform dependent. When developing in .Net MVC, I use bootstrap style lower case and hyphens for class names, but for ids I use PascalCase.
The reasoning for this is that my views are backed by strongly typed view models. Properties of C# models are pascal case. For the sake of model binding with MVC it makes sense that the names of HTML elements that bind to the model are consistent with the view model properties which are pascal case. For simplicity my ids are use the same naming convention as element names except for radio buttons and check boxes which require unique ids for each element in the named input group.
public List<Object> GetProjectForCombo()
{
using (MyDataContext db = new MyDataContext (DBHelper.GetConnectionString()))
{
var query = from pro in db.Projects
select new {pro.ProjectName,pro.ProjectId};
return query.ToList<Object>();
}
}
Rather than use multiple classes or class inheritance, perhaps a single Toy class that knows what "kind" it is:
class Toy:
num = 0
def __init__(self, name, kind, *args):
self.name = name
self.kind = kind
self.data = args
self.num = Toy.num
Toy.num += 1
def __repr__(self):
return ' '.join([self.name,self.kind,str(self.num)])
def playWith(self):
print self
def getNewToy(name, kind):
return Toy(name, kind)
t1 = Toy('Suzie', 'doll')
t2 = getNewToy('Jack', 'robot')
print t1
t2.playWith()
Running it:
$ python toy.py
Suzie doll 0
Jack robot 1
As you can see, getNewToy
is really unnecessary. Now you can modify playWith
to check the value of self.kind
and change behavior, you can redefine playWith
to designate a playmate:
def playWith(self, who=None):
if who: pass
print self
t1.playWith(t2)
Nothing worked for me, but then I went and looked into the certificate manager (mmc.exe). The certificate was not imported in the personal store, so I imported it manually and then the project compiled.
Is something like this what you're looking for?
def write_vars_to_file(f, **vars):
for name, val in vars.items():
f.write("%s = %s\n" % (name, repr(val)))
Usage:
>>> import sys
>>> write_vars_to_file(sys.stdout, dict={'one': 1, 'two': 2})
dict = {'two': 2, 'one': 1}
Isolation level defines how the changes made to some data repository by one transaction affect other simultaneous concurrent transactions, and also how and when that changed data becomes available to other transactions. When we define a transaction using the Spring framework we are also able to configure in which isolation level that same transaction will be executed.
@Transactional(isolation=Isolation.READ_COMMITTED)
public void someTransactionalMethod(Object obj) {
}
READ_UNCOMMITTED isolation level states that a transaction may read data that is still uncommitted by other transactions.
READ_COMMITTED isolation level states that a transaction can't read data that is not yet committed by other transactions.
REPEATABLE_READ isolation level states that if a transaction reads one record from the database multiple times the result of all those reading operations must always be the same.
SERIALIZABLE isolation level is the most restrictive of all isolation levels. Transactions are executed with locking at all levels (read, range and write locking) so they appear as if they were executed in a serialized way.
Propagation is the ability to decide how the business methods should be encapsulated in both logical or physical transactions.
Spring REQUIRED behavior means that the same transaction will be used if there is an already opened transaction in the current bean method execution context.
REQUIRES_NEW behavior means that a new physical transaction will always be created by the container.
The NESTED behavior makes nested Spring transactions to use the same physical transaction but sets savepoints between nested invocations so inner transactions may also rollback independently of outer transactions.
The MANDATORY behavior states that an existing opened transaction must already exist. If not an exception will be thrown by the container.
The NEVER behavior states that an existing opened transaction must not already exist. If a transaction exists an exception will be thrown by the container.
The NOT_SUPPORTED behavior will execute outside of the scope of any transaction. If an opened transaction already exists it will be paused.
The SUPPORTS behavior will execute in the scope of a transaction if an opened transaction already exists. If there isn't an already opened transaction the method will execute anyway but in a non-transactional way.
Thanks for the pipe but i had to make some changes before i could use it in angular 2 RC5. Changed the Pipe import line and also added type of any to the keys array initialization.
import {Pipe, PipeTransform} from '@angular/core';
@Pipe({name: 'keys'})
export class KeysPipe implements PipeTransform {
transform(value) {
let keys:any = [];
for (let key in value) {
keys.push( {key: key, value: value[key]} );
}
return keys;
}
}
you can create a variable and send to ajax.
var m = { "Value": @Model.Value }
$.ajax({
url: '<%=Url.Action("ModelPage")%>',
type: "POST",
data: m,
success: function(result) {
$("div#updatePane").html(result);
},
complete: function() {
$('form').onsubmit({ preventDefault: function() { } });
}
});
All of model's field must bo ceated in m.
I just want to explain it in my own way with a small story that I experienced in one of my projects. First I want to explain Why DAO is important? rather than go to What is DAO? for better understanding.
Why DAO is important?
In my one project of my project, I used Client.class
which contains all the basic information of our system users. Where I need client then every time I need to do an ugly query where it is needed. Then I felt that decreases the readability and made a lot of redundant boilerplate code.
Then one of my senior developers introduced a QueryUtils.class
where all queries are added using public static
access modifier and then I don't need to do query everywhere. Suppose when I needed activated clients then I just call -
QueryUtils.findAllActivatedClients();
In this way, I made some optimizations of my code.
But there was another problem !!!
I felt that the QueryUtils.class was growing very highly. 100+ methods were included in that class which was also very cumbersome to read and use. Because this class contains other queries of another domain models ( For example- products, categories locations, etc ).
Then the superhero Mr. CTO introduced a new solution named DAO which solved the problem finally. I felt DAO is very domain-specific. For example, he created a DAO called ClientDAO.class
where all Client.class
related queries are found which seems very easy for me to use and maintain. The giant QueryUtils.class
was broken down into many other domain-specific DAO for example - ProductsDAO.class
, CategoriesDAO.class
, etc which made the code more Readable, more Maintainable, more Decoupled.
What is DAO?
It is an object or interface, which made an easy way to access data from the database without writing complex and ugly queries every time in a reusable way.
Similar to an earlier answer, this will handle positive and negative integer powers of a double nicely.
double intpow(double a, int b)
{
double r = 1.0;
if (b < 0)
{
a = 1.0 / a;
b = -b;
}
while (b)
{
if (b & 1)
r *= a;
a *= a;
b >>= 1;
}
return r;
}
Also you can use default()
filter. Or just a shortcut d()
- name: Generating a new SSH key for the current user it's not exists already
local_action:
module: user
name: "{{ login_user.stdout }}"
generate_ssh_key: yes
ssh_key_bits: 2048
when:
- sshkey_result.rc == 1
- github_username | d('none') | lower == 'none'
Yes, it is normal. This is because you checkout a single commit, that doesnt have a head. Especially it is (sooner or later) not a head of any branch.
But there is usually no problem with that state. You may create a new branch from the tag, if this makes you feel safer :)
As of Angular 6+, this is handled slightly differently than in previous versions. As @BeetleJuice mentions in the answer above, paramMap
is new interface for getting route params, but the execution is a bit different in more recent versions of Angular. Assuming this is in a component:
private _entityId: number;
constructor(private _route: ActivatedRoute) {
// ...
}
ngOnInit() {
// For a static snapshot of the route...
this._entityId = this._route.snapshot.paramMap.get('id');
// For subscribing to the observable paramMap...
this._route.paramMap.pipe(
switchMap((params: ParamMap) => this._entityId = params.get('id'))
);
// Or as an alternative, with slightly different execution...
this._route.paramMap.subscribe((params: ParamMap) => {
this._entityId = params.get('id');
});
}
I prefer to use both because then on direct page load I can get the ID param, and also if navigating between related entities the subscription will update properly.
DECLARE @TABLE TABLE
(RowNo INT,ScripName VARCHAR(10),ScripCode VARCHAR(10)
,Price VARCHAR(10))
INSERT INTO @TABLE VALUES
(1,'20 MICRONS ','533022','39')
SELECT ColumnName,ColumnValue from @Table
Unpivot(ColumnValue For ColumnName IN (ScripName,ScripCode,Price)) AS H
Simply call list
on the generator.
lst = list(gen)
lst
Be aware that this affects the generator which will not return any further items.
You also cannot directly call list
in IPython, as it conflicts with a command for listing lines of code.
Tested on this file:
def gen():
yield 1
yield 2
yield 3
yield 4
yield 5
import ipdb
ipdb.set_trace()
g1 = gen()
text = "aha" + "bebe"
mylst = range(10, 20)
which when run:
$ python code.py
> /home/javl/sandbox/so/debug/code.py(10)<module>()
9
---> 10 g1 = gen()
11
ipdb> n
> /home/javl/sandbox/so/debug/code.py(12)<module>()
11
---> 12 text = "aha" + "bebe"
13
ipdb> lst = list(g1)
ipdb> lst
[1, 2, 3, 4, 5]
ipdb> q
Exiting Debugger.
There are debugger commands p
and pp
that will print
and prettyprint
any expression following them.
So you could use it as follows:
$ python code.py
> /home/javl/sandbox/so/debug/code.py(10)<module>()
9
---> 10 g1 = gen()
11
ipdb> n
> /home/javl/sandbox/so/debug/code.py(12)<module>()
11
---> 12 text = "aha" + "bebe"
13
ipdb> p list(g1)
[1, 2, 3, 4, 5]
ipdb> c
There is also an exec
command, called by prefixing your expression with !
, which forces debugger to take your expression as Python one.
ipdb> !list(g1)
[]
For more details see help p
, help pp
and help exec
when in debugger.
ipdb> help exec
(!) statement
Execute the (one-line) statement in the context of
the current stack frame.
The exclamation point can be omitted unless the first word
of the statement resembles a debugger command.
To assign to a global variable you must always prefix the
command with a 'global' command, e.g.:
(Pdb) global list_options; list_options = ['-l']
If you reference the sheet from another sheet, you can get the sheet name using the CELL function. You can then use regex to extract out the sheet name.
=REGEXREPLACE(CELL("address",'SHEET NAME'!A1),"'?([^']+)'?!.*","$1")
update: The formula will automatically update 'SHEET NAME' with future changes, but you will need to reference a cell (such as A1) on that sheet when the formula is originally entered.
"Just because you can doesn't mean you should."
You can probably use async/await in LINQ expressions such that it will behave exactly as you want it to, but will any other developer reading your code still understand its behavior and intent?
(In particular: Should the async operations be run in parallel or are they intentionally sequential? Did the original developer even think about it?)
This is also shown clearly by the question, which seems to have been asked by a developer trying to understand someone else's code, without knowing its intent. To make sure this does not happen again, it may be best to rewrite the LINQ expression as a loop statement, if possible.
Yes, this is a current issue in Chrome. There is an issue report here.
The fix will appear in 40.x.y.z versions.
Until then? I don't think you can resolve the issue yourself. But you can ignore it. The shown error is only related to the dev tools and does not influence the behavior of your website. If you have any other problems they are not related to this error.
This solution works nice when using Latin American accents, such as 'ñ'.
I have solved this problem just by adding
df = pd.read_csv(fileName,encoding='latin1')
Something like this should do the trick (However, read after the snippet for more info)
CREATE PROCEDURE GetFilteredData()
BEGIN
DECLARE bDone INT;
DECLARE var1 CHAR(16); -- or approriate type
DECLARE Var2 INT;
DECLARE Var3 VARCHAR(50);
DECLARE curs CURSOR FOR SELECT something FROM somewhere WHERE some stuff;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET bDone = 1;
DROP TEMPORARY TABLE IF EXISTS tblResults;
CREATE TEMPORARY TABLE IF NOT EXISTS tblResults (
--Fld1 type,
--Fld2 type,
--...
);
OPEN curs;
SET bDone = 0;
REPEAT
FETCH curs INTO var1,, b;
IF whatever_filtering_desired
-- here for whatever_transformation_may_be_desired
INSERT INTO tblResults VALUES (var1, var2, var3 ...);
END IF;
UNTIL bDone END REPEAT;
CLOSE curs;
SELECT * FROM tblResults;
END
A few things to consider...
Concerning the snippet above:
More generally: trying to avoid needing a cursor.
I purposely named the cursor variable curs[e], because cursors are a mixed blessing. They can help us implement complicated business rules that may be difficult to express in the declarative form of SQL, but it then brings us to use the procedural (imperative) form of SQL, which is a general feature of SQL which is neither very friendly/expressive, programming-wise, and often less efficient performance-wise.
Maybe you can look into expressing the transformation and filtering desired in the context of a "plain" (declarative) SQL query.
"Alter column position" in the PostgreSQL Wiki says:
PostgreSQL currently defines column order based on the
attnum
column of thepg_attribute
table. The only way to change column order is either by recreating the table, or by adding columns and rotating data until you reach the desired layout.
That's pretty weak, but in their defense, in standard SQL, there is no solution for repositioning a column either. Database brands that support changing the ordinal position of a column are defining an extension to SQL syntax.
One other idea occurs to me: you can define a VIEW
that specifies the order of columns how you like it, without changing the physical position of the column in the base table.
Intercept the KeyPressed event is in my opinion a good solid solution. Pay attention to trigger code characters (e.KeyChar lower then 32) if you use a RegExp.
But in this way is still possible to inject characters out of range whenever the user paste text from the clipboard. Unfortunately I did not found correct clipboard events to fix this.
So a waterproof solution is to intercept TextBox.TextChanged. Here is sometimes the original out of range character visible, for a short time. I recommend to implement both.
using System.Text.RegularExpressions;
private void Form1_Shown(object sender, EventArgs e)
{
filterTextBoxContent(textBox1);
}
string pattern = @"[^0-9^+^\-^/^*^(^)]";
private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
if(e.KeyChar >= 32 && Regex.Match(e.KeyChar.ToString(), pattern).Success) { e.Handled = true; }
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
filterTextBoxContent(textBox1);
}
private bool filterTextBoxContent(TextBox textBox)
{
string text = textBox.Text;
MatchCollection matches = Regex.Matches(text, pattern);
bool matched = false;
int selectionStart = textBox.SelectionStart;
int selectionLength = textBox.SelectionLength;
int leftShift = 0;
foreach (Match match in matches)
{
if (match.Success && match.Captures.Count > 0)
{
matched = true;
Capture capture = match.Captures[0];
int captureLength = capture.Length;
int captureStart = capture.Index - leftShift;
int captureEnd = captureStart + captureLength;
int selectionEnd = selectionStart + selectionLength;
text = text.Substring(0, captureStart) + text.Substring(captureEnd, text.Length - captureEnd);
textBox.Text = text;
int boundSelectionStart = selectionStart < captureStart ? -1 : (selectionStart < captureEnd ? 0 : 1);
int boundSelectionEnd = selectionEnd < captureStart ? -1 : (selectionEnd < captureEnd ? 0 : 1);
if (boundSelectionStart == -1)
{
if (boundSelectionEnd == 0)
{
selectionLength -= selectionEnd - captureStart;
}
else if (boundSelectionEnd == 1)
{
selectionLength -= captureLength;
}
}
else if (boundSelectionStart == 0)
{
if (boundSelectionEnd == 0)
{
selectionStart = captureStart;
selectionLength = 0;
}
else if (boundSelectionEnd == 1)
{
selectionStart = captureStart;
selectionLength -= captureEnd - selectionStart;
}
}
else if (boundSelectionStart == 1)
{
selectionStart -= captureLength;
}
leftShift++;
}
}
textBox.SelectionStart = selectionStart;
textBox.SelectionLength = selectionLength;
return matched;
}
The ultimate curl php function:
function getURL($url,$fields=null,$method=null,$file=null){
// author = Ighor Toth <[email protected]>
// required:
// url = include http or https
// optionals:
// fields = must be array (e.g.: 'field1' => $field1, ...)
// method = "GET", "POST"
// file = if want to download a file, declare store location and file name (e.g.: /var/www/img.jpg, ...)
// please crete 'cookies' dir to store local cookies if neeeded
// do not modify below
$useragent = 'Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko';
$timeout= 240;
$dir = dirname(__FILE__);
$_SERVER["REMOTE_ADDR"] = $_SERVER["REMOTE_ADDR"] ?? '127.0.0.1';
$cookie_file = $dir . '/cookies/' . md5($_SERVER['REMOTE_ADDR']) . '.txt';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_FAILONERROR, true);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file);
curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true );
curl_setopt($ch, CURLOPT_ENCODING, "" );
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true );
curl_setopt($ch, CURLOPT_AUTOREFERER, true );
curl_setopt($ch, CURLOPT_MAXREDIRS, 10 );
curl_setopt($ch, CURLOPT_USERAGENT, $useragent);
curl_setopt($ch, CURLOPT_REFERER, 'http://www.google.com/');
if($file!=null){
if (!curl_setopt($ch, CURLOPT_FILE, $file)){ // Handle error
die("curl setopt bit the dust: " . curl_error($ch));
}
//curl_setopt($ch, CURLOPT_FILE, $file);
$timeout= 3600;
}
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout );
curl_setopt($ch, CURLOPT_TIMEOUT, $timeout );
if($fields!=null){
$postvars = http_build_query($fields); // build the urlencoded data
if($method=="POST"){
// set the url, number of POST vars, POST data
curl_setopt($ch, CURLOPT_POST, count($fields));
curl_setopt($ch, CURLOPT_POSTFIELDS, $postvars);
}
if($method=="GET"){
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
$url = $url.'?'.$postvars;
}
}
curl_setopt($ch, CURLOPT_URL, $url);
$content = curl_exec($ch);
if (!$content){
$error = curl_error($ch);
$info = curl_getinfo($ch);
die("cURL request failed, error = {$error}; info = " . print_r($info, true));
}
if(curl_errno($ch)){
echo 'error:' . curl_error($ch);
} else {
return $content;
}
curl_close($ch);
}
It appears that with newer versions of bundler (>= 1.14) it's:
bundle update --conservative gem-name
.modal.in .modal-dialog {_x000D_
position: relative;_x000D_
top: 50%;_x000D_
transform: translateY(-50%);_x000D_
}
_x000D_
Try this [reverse order traversal]:
var childs = document.getElementById('parent').childNodes;
var len = childs.length;
if(len --) do {
console.log('node: ', childs[len]);
} while(len --);
OR [in order traversal]
var childs = document.getElementById('parent').childNodes;
var len = childs.length, i = -1;
if(++i < len) do {
console.log('node: ', childs[i]);
} while(++i < len);
You can also extract the event code from the HTML, like this :
<input type="checkbox" id="check_all_1" name="check_all_1" title="Select All" />
<label for="check_all_1">Select All</label>
<script>
function selectAll(frmElement, chkElement) {
// ...
}
document.getElementById("check_all_1").onclick = function() {
selectAll(document.wizard_form, this);
}
</script>
I use this - it never fails:
startingpoint = 'blah'
if sys.argv[1:]:
startingpoint = sys.argv[1]
Download and install this plugin JSToolNpp ,Then perform operations like this Plugins | JSTool | JSFormat. If you don’t want to install plugins, you can perform JSON beautification operations on JSON Formatter
I did have the same problem and at first I added:
<activity
android:name="com.companyname.applicationname"
android:windowSoftInputMode="adjustPan">
to my manifest file. But this alone did not solve the issue. Then as mentioned by Artem Russakovskii, I added:
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:isScrollContainer="false">
</ScrollView>
in the scrollview.
This is what worked for me.
Other than white-space:nowrap;
also add the following CSS
ul li{
display: inline;
}
I have tried some hours now and the easiest way to stop browsers to jump to the anchor instead of scrolling to it is: Using another anchor (an id you do not use on the site). So instead of linking to "http://#YourActualID" you link to "http://#NoIDonYourSite". Poof, browsers won’t jump anymore.
Then just check if an anchor is set (with the script provided below, that is pulled out of the other thread!). And set your actual id you want to scroll to.
$(document).ready(function(){
$(window).load(function(){
// Remove the # from the hash, as different browsers may or may not include it
var hash = location.hash.replace('#','');
if(hash != ''){
// Clear the hash in the URL
// location.hash = ''; // delete front "//" if you want to change the address bar
$('html, body').animate({ scrollTop: $('#YourIDtoScrollTo').offset().top}, 1000);
}
});
});
See https://lightningsoul.com/media/article/coding/30/YOUTUBE-SOCKREAD-SCRIPT-FOR-MIRC#content for a working example.
Python 3.3 adds the venv module, and Python 3.4 adds the ensurepip module. This makes bootstrapping pip as easy as:
python -m ensurepip
Perhaps preceded by a call to venv
to do so inside a virtual environment.
Guaranteed pip is described in PEP 453.
This is rather easy to achieve by making a dataset with a text-query like this:
SELECT 'Item1'
UNION
SELECT 'Item2'
UNION
SELECT 'Item3'
UNION
SELECT 'Item4'
UNION
SELECT 'ItemN'
The query should return all items that can be selected.
Try this plugin JQuery UI Message box. He uses jQuery UI Dialog.
Calling erase will invalidate iterators, you could use:
void erase(std::vector<int>& myNumbers_in, int number_in)
{
std::vector<int>::iterator iter = myNumbers_in.begin();
while (iter != myNumbers_in.end())
{
if (*iter == number_in)
{
iter = myNumbers_in.erase(iter);
}
else
{
++iter;
}
}
}
Or you could use std::remove_if together with a functor and std::vector::erase:
struct Eraser
{
Eraser(int number_in) : number_in(number_in) {}
int number_in;
bool operator()(int i) const
{
return i == number_in;
}
};
std::vector<int> myNumbers;
myNumbers.erase(std::remove_if(myNumbers.begin(), myNumbers.end(), Eraser(number_in)), myNumbers.end());
Instead of writing your own functor in this case you could use std::remove:
std::vector<int> myNumbers;
myNumbers.erase(std::remove(myNumbers.begin(), myNumbers.end(), number_in), myNumbers.end());
In C++11 you could use a lambda instead of a functor:
std::vector<int> myNumbers;
myNumbers.erase(std::remove_if(myNumbers.begin(), myNumbers.end(), [number_in](int number){ return number == number_in; }), myNumbers.end());
In C++17 std::experimental::erase and std::experimental::erase_if are also available, in C++20 these are (finally) renamed to std::erase and std::erase_if (note: in Visual Studio 2019 you'll need to change your C++ language version to the latest experimental version for support):
std::vector<int> myNumbers;
std::erase_if(myNumbers, Eraser(number_in)); // or use lambda
or:
std::vector<int> myNumbers;
std::erase(myNumbers, number_in);
There seems to be a lot of misinformation about how to use this event going around (even in upvoted answers on this page).
The onbeforeunload
event API is supplied by the browser for a specific purpose: The only thing you can do that's worth doing in this method is to return a string which the browser will then prompt to the user to indicate to them that action should be taken before they navigate away from the page. You CANNOT prevent them from navigating away from a page (imagine what a nightmare that would be for the end user).
Because browsers use a confirm prompt to show the user the string you returned from your event listener, you can't do anything else in the method either (like perform an ajax request).
In an application I wrote, I want to prompt the user to let them know they have unsaved changes before they leave the page. The browser prompts them with the message and, after that, it's out of my hands, the user can choose to stay or leave, but you no longer have control of the application at that point.
An example of how I use it (pseudo code):
onbeforeunload = function() {
if(Application.hasUnsavedChanges()) {
return 'You have unsaved changes. Please save them before leaving this page';
}
};
If (and only if) the application has unsaved changes, then the browser prompts the user to either ignore my message (and leave the page anyway) or to not leave the page. If they choose to leave the page anyway, too bad, there's nothing you can do (nor should be able to do) about it.
Here are the ones I can find:
Sources:
Error:(30, 0) Gradle DSL method not found: 'classpath()' Possible causes:
In my case, I was getting the error because I upgraded from Laravel Mix Version 2 to 5.
In Laravel Mix Version 2, you import vue components as follows:
Vue.component(
'example-component',
require('./components/ExampleComponent.vue')
);
In Laravel Mix Version 5, you have to import your components as follows:
import ExampleComponent from './components/ExampleComponent.vue';
Vue.component('example-component', ExampleComponent);
Here is the documentation: https://laravel-mix.com/docs/5.0/upgrade
Better, to improve performance of your app, you can lazy load your components as follows:
Vue.component("ExampleComponent", () => import("./components/ExampleComponent"));
sys.path
is only searched for Python modules. For dynamic linked libraries, the paths searched must be in LD_LIBRARY_PATH
. Check if your LD_LIBRARY_PATH
includes /usr/local/lib
, and if it doesn't, add it and try again.
Some more information (source):
In Linux, the environment variable LD_LIBRARY_PATH is a colon-separated set of directories where libraries should be searched for first, before the standard set of directories; this is useful when debugging a new library or using a nonstandard library for special purposes. The environment variable LD_PRELOAD lists shared libraries with functions that override the standard set, just as /etc/ld.so.preload does. These are implemented by the loader /lib/ld-linux.so. I should note that, while LD_LIBRARY_PATH works on many Unix-like systems, it doesn't work on all; for example, this functionality is available on HP-UX but as the environment variable SHLIB_PATH, and on AIX this functionality is through the variable LIBPATH (with the same syntax, a colon-separated list).
Update: to set LD_LIBRARY_PATH
, use one of the following, ideally in your ~/.bashrc
or equivalent file:
export LD_LIBRARY_PATH=/usr/local/lib
or
export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH
Use the first form if it's empty (equivalent to the empty string, or not present at all), and the second form if it isn't. Note the use of export.
I tried experimenting with the answers given. My personal finding came out to be:
git rm -r --cached .
And then
git add .
This seemed to make my working directory nice and clean. You can put your fileName in place of the dot.
there is a simple way of deleting or removing the npm proxies.
npm config delete proxy
npm config delete https-proxy
This is the reply I received from Github when I asked them to delete a pull request:
"Thanks for getting in touch! Pull requests can't be deleted through the UI at the moment and we'll only delete pull requests when they contain sensitive information like passwords or other credentials."
I had the same issue. I had a backup of my C:\xampp\mysql\data
folder. But integrating it with the newly installed xampp
had issues. So I located the C:\xampp\mysql\bin\my.ini
file and directed innodb_data_home_dir = "C:/xampp/mysql/data"
to my backed-up data folder and it worked flawlessly.
Use Method to Serialize and Deserialize Collection object from memory. This works on Collection Data Types. This Method will Serialize collection of any type to a byte stream. Create a Seperate Class SerilizeDeserialize
and add following two methods:
public class SerilizeDeserialize
{
// Serialize collection of any type to a byte stream
public static byte[] Serialize<T>(T obj)
{
using (MemoryStream memStream = new MemoryStream())
{
BinaryFormatter binSerializer = new BinaryFormatter();
binSerializer.Serialize(memStream, obj);
return memStream.ToArray();
}
}
// DSerialize collection of any type to a byte stream
public static T Deserialize<T>(byte[] serializedObj)
{
T obj = default(T);
using (MemoryStream memStream = new MemoryStream(serializedObj))
{
BinaryFormatter binSerializer = new BinaryFormatter();
obj = (T)binSerializer.Deserialize(memStream);
}
return obj;
}
}
How To use these method in your Class:
ArrayList arrayListMem = new ArrayList() { "One", "Two", "Three", "Four", "Five", "Six", "Seven" };
Console.WriteLine("Serializing to Memory : arrayListMem");
byte[] stream = SerilizeDeserialize.Serialize(arrayListMem);
ArrayList arrayListMemDes = new ArrayList();
arrayListMemDes = SerilizeDeserialize.Deserialize<ArrayList>(stream);
Console.WriteLine("DSerializing From Memory : arrayListMemDes");
foreach (var item in arrayListMemDes)
{
Console.WriteLine(item);
}
$("input[type='checkbox']:not(:checked):not('\#chkAll\')").map(function () {
var a = "";
if (this.name != "chkAll") {
a = this.name + "|off";
}
return a;
}).get().join();
This will retrieve all unchecked checkboxes and exclude the "chkAll" checkbox that I use to check|uncheck all checkboxes. Since I want to know what value I'm passing to the database I set these to off, since the checkboxes give me a value of on.
//looking for unchecked checkboxes, but don’t include the checkbox all that checks or unchecks all checkboxes
//.map - Pass each element in the current matched set through a function, producing a new jQuery object containing the return values.
//.get - Retrieve the DOM elements matched by the jQuery object.
//.join - (javascript) joins the elements of an array into a string, and returns the string.The elements will be separated by a specified separator. The default separator is comma (,).
nslookup
commandG:\wwwRoot\JavaScript Testing>nslookup 208.97.177.124
Server: phicomm.me
Address: 192.168.2.1
Name: apache2-argon.william-floyd.dreamhost.com
Address: 208.97.177.124
G:\wwwRoot\JavaScript Testing>
http://www.guidingtech.com/2890/find-ip-address-nslookup-command-windows/
if you want get more info, please check the following answer!
https://superuser.com/questions/287577/how-to-find-a-domain-based-on-the-ip-address/1177576#1177576
It might be overkill but your MySQL command history can also be wiped from:
~/.mysql_history
I solved my own problem, and I will write a summary of the things that were wrong and the solution:
The file needs to be called exactly __init__.py
. If the extension is different such as in my case .py.bin
then Python cannot move through the directories and then it cannot find the modules. To edit the files you need to use a Linux editor, such as vi or nano. If you use a Windows editor this will write some hidden characters.
Another problem that was affecting it was that I had another Python version installed by the root, so if someone is working with a local installation of python, be sure that the Python installation that is running the programs is the local Python. To check this, just do which python
, and see if the executable is the one that is in your local directory. If not, change the path, but be sure that the local Python directory is before than the other Python.
Here's one approach that uses a keylistener,but uses the keyChar (instead of the keyCode):
http://edenti.deis.unibo.it/utils/Java-tips/Validating%20numerical%20input%20in%20a%20JTextField.txt
keyText.addKeyListener(new KeyAdapter() {
public void keyTyped(KeyEvent e) {
char c = e.getKeyChar();
if (!((c >= '0') && (c <= '9') ||
(c == KeyEvent.VK_BACK_SPACE) ||
(c == KeyEvent.VK_DELETE))) {
getToolkit().beep();
e.consume();
}
}
});
Another approach (which personally I find almost as over-complicated as Swing's JTree model) is to use Formatted Text Fields:
http://docs.oracle.com/javase/tutorial/uiswing/components/formattedtextfield.html
In case you're here wondering how this works for Material UI when building in React, here's how you add this to your <TableHead>
Component:
<TableHead style={{ whiteSpace: 'nowrap'}}>
Don't forget to include
import Image
In order to show it use this :
Image.open('pathToFile').show()
Log in as root, then run the following MySQL commands:
GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost';
FLUSH PRIVILEGES;
Browsers make their best guess with the data they receive. This works for markup (which Websites often get wrong) and other media content. A program that receives a file can often figure out what its received regardless of the MIME content type it's been told.
This isn't something you should rely on however. It's recommended you always use the correct MIME content.
Select the lines you want to comment out. Then press:
Ctrl + #
For the first part, try
echo Aa | od -t x1
It prints byte-by-byte
$ echo Aa | od -t x1
0000000 41 61 0a
0000003
The 0a
is the implicit newline that echo produces.
Use echo -n
or printf
instead.
$ printf Aa | od -t x1
0000000 41 61
0000002