This is my approach:
function getRealUserIp(){
switch(true){
case (!empty($_SERVER['HTTP_X_REAL_IP'])) : return $_SERVER['HTTP_X_REAL_IP'];
case (!empty($_SERVER['HTTP_CLIENT_IP'])) : return $_SERVER['HTTP_CLIENT_IP'];
case (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) : return $_SERVER['HTTP_X_FORWARDED_FOR'];
default : return $_SERVER['REMOTE_ADDR'];
}
}
How to use:
$ip = getRealUserIp();
In 2019 you can use querySelector for that.
It's supported by most browsers (https://caniuse.com/#search=querySelector)
document.querySelector('body').appendChild(i);
Please add this line in your web.xml It works for me
<context-param>
<param-name>org.ajax4jsf.handleViewExpiredOnClient</param-name>
<param-value>true</param-value>
</context-param>
Remove
dataType: 'json'
replacing it with
dataType: 'text'
To understand the nouns, let's focus on the verbs first.
declare - to announce officially; proclaim
define - to show or describe (someone or something) clearly and completely
So, when you declare something, you just tell what it is.
// declaration
int sum(int, int);
This line declares a C function called sum
that takes two arguments of type int
and returns an int
. However, you can't use it yet.
When you provide how it actually works, that's the definition of it.
// definition
int sum(int x, int y)
{
return x + y;
}
In case anyone else finds this thread with my problem -- I was using an "integer" column type in MySQL. The row I was attempting to insert had a primary key with a value larger than allowed by integer. Switching to "bigint" fixed the problem.
Install the following to resolve your error.
2007 Office System Driver: Data Connectivity Components
AccessDatabaseEngine.exe (25.3 MB)
This download will install a set of components that facilitate the transfer of data between existing Microsoft Office files such as Microsoft Office Access 2007 (*.mdb and .accdb) files and Microsoft Office Excel 2007 (.xls, *.xlsx, and *.xlsb) files to other data sources such as Microsoft SQL Server.
SELECT TOP 1 products.id FROM products WHERE products.id = ?;
will outperform all of your suggestions as it will terminate execution after it finds the first record.
Note: According to JDN96, the answer below may cause a memory leak by repeatedly destroying and recreating frames. However, I have not tested to verify this myself.
One way to switch frames in tkinter
is to destroy the old frame then replace it with your new frame.
I have modified Bryan Oakley's answer to destroy the old frame before replacing it. As an added bonus, this eliminates the need for a container
object and allows you to use any generic Frame
class.
# Multi-frame tkinter application v2.3
import tkinter as tk
class SampleApp(tk.Tk):
def __init__(self):
tk.Tk.__init__(self)
self._frame = None
self.switch_frame(StartPage)
def switch_frame(self, frame_class):
"""Destroys current frame and replaces it with a new one."""
new_frame = frame_class(self)
if self._frame is not None:
self._frame.destroy()
self._frame = new_frame
self._frame.pack()
class StartPage(tk.Frame):
def __init__(self, master):
tk.Frame.__init__(self, master)
tk.Label(self, text="This is the start page").pack(side="top", fill="x", pady=10)
tk.Button(self, text="Open page one",
command=lambda: master.switch_frame(PageOne)).pack()
tk.Button(self, text="Open page two",
command=lambda: master.switch_frame(PageTwo)).pack()
class PageOne(tk.Frame):
def __init__(self, master):
tk.Frame.__init__(self, master)
tk.Label(self, text="This is page one").pack(side="top", fill="x", pady=10)
tk.Button(self, text="Return to start page",
command=lambda: master.switch_frame(StartPage)).pack()
class PageTwo(tk.Frame):
def __init__(self, master):
tk.Frame.__init__(self, master)
tk.Label(self, text="This is page two").pack(side="top", fill="x", pady=10)
tk.Button(self, text="Return to start page",
command=lambda: master.switch_frame(StartPage)).pack()
if __name__ == "__main__":
app = SampleApp()
app.mainloop()
switch_frame()
works by accepting any Class object that implements Frame
. The function then creates a new frame to replace the old one.
_frame
if it exists, then replaces it with the new frame..pack()
, such as menubars, will be unaffected.tkinter.Frame
.v2.3
- Pack buttons and labels as they are initialized
v2.2
- Initialize `_frame` as `None`.
- Check if `_frame` is `None` before calling `.destroy()`.
v2.1.1
- Remove type-hinting for backwards compatibility with Python 3.4.
v2.1
- Add type-hinting for `frame_class`.
v2.0
- Remove extraneous `container` frame.
- Application now works with any generic `tkinter.frame` instance.
- Remove `controller` argument from frame classes.
- Frame switching is now done with `master.switch_frame()`.
v1.6
- Check if frame attribute exists before destroying it.
- Use `switch_frame()` to set first frame.
v1.5
- Revert 'Initialize new `_frame` after old `_frame` is destroyed'.
- Initializing the frame before calling `.destroy()` results
in a smoother visual transition.
v1.4
- Pack frames in `switch_frame()`.
- Initialize new `_frame` after old `_frame` is destroyed.
- Remove `new_frame` variable.
v1.3
- Rename `parent` to `master` for consistency with base `Frame` class.
v1.2
- Remove `main()` function.
v1.1
- Rename `frame` to `_frame`.
- Naming implies variable should be private.
- Create new frame before destroying old frame.
v1.0
- Initial version.
This is because you are reading a cursor, not an array. This means that you are reading sequentially through the results and when you get to the end you would need to reset the cursor to the beginning of the results to read them again.
If you did want to read over the results multiple times, you could use fetchAll to read the results into a true array and then it would work as you are expecting.
If you working with in-memory data (read "collections of POCO") you may also stack your expressions together using PredicateBuilder like so:
// initial "false" condition just to start "OR" clause with
var predicate = PredicateBuilder.False<YourDataClass>();
if (condition1)
{
predicate = predicate.Or(d => d.SomeStringProperty == "Tom");
}
if (condition2)
{
predicate = predicate.Or(d => d.SomeStringProperty == "Alex");
}
if (condition3)
{
predicate = predicate.And(d => d.SomeIntProperty >= 4);
}
return originalCollection.Where<YourDataClass>(predicate.Compile());
The full source of mentioned PredicateBuilder
is bellow (but you could also check the original page with a few more examples):
using System;
using System.Linq;
using System.Linq.Expressions;
using System.Collections.Generic;
public static class PredicateBuilder
{
public static Expression<Func<T, bool>> True<T> () { return f => true; }
public static Expression<Func<T, bool>> False<T> () { return f => false; }
public static Expression<Func<T, bool>> Or<T> (this Expression<Func<T, bool>> expr1,
Expression<Func<T, bool>> expr2)
{
var invokedExpr = Expression.Invoke (expr2, expr1.Parameters.Cast<Expression> ());
return Expression.Lambda<Func<T, bool>>
(Expression.OrElse (expr1.Body, invokedExpr), expr1.Parameters);
}
public static Expression<Func<T, bool>> And<T> (this Expression<Func<T, bool>> expr1,
Expression<Func<T, bool>> expr2)
{
var invokedExpr = Expression.Invoke (expr2, expr1.Parameters.Cast<Expression> ());
return Expression.Lambda<Func<T, bool>>
(Expression.AndAlso (expr1.Body, invokedExpr), expr1.Parameters);
}
}
Note: I've tested this approach with Portable Class Library project and have to use .Compile()
to make it work:
Where(predicate .Compile() );
Depending on the language, those might not be considered accents (which change the sound of the letter), but diacritical marks
https://en.wikipedia.org/wiki/Diacritic#Languages_with_letters_containing_diacritics
"Bosnian and Croatian have the symbols c, c, d, š and ž, which are considered separate letters and are listed as such in dictionaries and other contexts in which words are listed according to alphabetical order."
Removing them might be inherently changing the meaning of the word, or changing the letters into completely different ones.
Actually, you can do what you want. If you want to provide multiple interfaces or a class plus interfaces, you have to have your wildcard look something like this:
<T extends ClassA & InterfaceB>
See the Generics Tutorial at sun.com, specifically the Bounded Type Parameters section, at the bottom of the page. You can actually list more than one interface if you wish, using & InterfaceName
for each one that you need.
This can get arbitrarily complicated. To demonstrate, see the JavaDoc declaration of Collections#max
, which (wrapped onto two lines) is:
public static <T extends Object & Comparable<? super T>> T
max(Collection<? extends T> coll)
why so complicated? As said in the Java Generics FAQ: To preserve binary compatibility.
It looks like this doesn't work for variable declaration, but it does work when putting a generic boundary on a class. Thus, to do what you want, you may have to jump through a few hoops. But you can do it. You can do something like this, putting a generic boundary on your class and then:
class classB { }
interface interfaceC { }
public class MyClass<T extends classB & interfaceC> {
Class<T> variable;
}
to get variable
that has the restriction that you want. For more information and examples, check out page 3 of Generics in Java 5.0. Note, in <T extends B & C>
, the class name must come first, and interfaces follow. And of course you can only list a single class.
I'm quite late to the party, but one approach is to use a static inner class to unwrap values:
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
class Scratch {
private final String aString;
private final String bString;
private final String cString;
private final static String jsonString;
static {
jsonString = "{\n" +
" \"wrap\" : {\n" +
" \"A\": \"foo\",\n" +
" \"B\": \"bar\",\n" +
" \"C\": \"baz\"\n" +
" }\n" +
"}";
}
@JsonCreator
Scratch(@JsonProperty("A") String aString,
@JsonProperty("B") String bString,
@JsonProperty("C") String cString) {
this.aString = aString;
this.bString = bString;
this.cString = cString;
}
@Override
public String toString() {
return "Scratch{" +
"aString='" + aString + '\'' +
", bString='" + bString + '\'' +
", cString='" + cString + '\'' +
'}';
}
public static class JsonDeserializer {
private final Scratch scratch;
@JsonCreator
public JsonDeserializer(@JsonProperty("wrap") Scratch scratch) {
this.scratch = scratch;
}
public Scratch getScratch() {
return scratch;
}
}
public static void main(String[] args) throws JsonProcessingException {
ObjectMapper objectMapper = new ObjectMapper();
Scratch scratch = objectMapper.readValue(jsonString, Scratch.JsonDeserializer.class).getScratch();
System.out.println(scratch.toString());
}
}
However, it's probably easier to use objectMapper.configure(SerializationConfig.Feature.UNWRAP_ROOT_VALUE, true);
in conjunction with @JsonRootName("aName")
, as pointed out by pb2q
This answer in Vanilla:
function isScrolledIntoView(el) {
var rect = el.getBoundingClientRect();
var elemTop = rect.top;
var elemBottom = rect.bottom;
// Only completely visible elements return true:
var isVisible = (elemTop >= 0) && (elemBottom <= window.innerHeight);
// Partially visible elements return true:
//isVisible = elemTop < window.innerHeight && elemBottom >= 0;
return isVisible;
}
Right click your project and choose properties in the properties dialog check the Java Compiler settings, maybe you have different workspace settings.
Call nrow
passing as argument the name of the dataset:
nrow(dataset)
ALTER TABLE your_table
ADD PRIMARY KEY (Drugid);
Create a class that implements the Runnable
interface. Put the code you want to run in the run()
method - that's the method that you must write to comply to the Runnable
interface. In your "main" thread, create a new Thread
class, passing the constructor an instance of your Runnable
, then call start()
on it. start
tells the JVM to do the magic to create a new thread, and then call your run
method in that new thread.
public class MyRunnable implements Runnable {
private int var;
public MyRunnable(int var) {
this.var = var;
}
public void run() {
// code in the other thread, can reference "var" variable
}
}
public class MainThreadClass {
public static void main(String args[]) {
MyRunnable myRunnable = new MyRunnable(10);
Thread t = new Thread(myRunnable)
t.start();
}
}
Take a look at Java's concurrency tutorial to get started.
If your method is going to be called frequently, then it may not be worth creating a new thread each time, as this is an expensive operation. It would probably be best to use a thread pool of some sort. Have a look at Future
, Callable
, Executor
classes in the java.util.concurrent
package.
Just to add some use cases for @anon's & @Oktalist's answer, here's a great reading material about pointer-to-member-function and pointer-to-member-data.
You can see how iTunes does it by using Fiddler to follow the action when using the link: http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=80028216
Note that the exe, when installed, installed URL protocol handlers for "itms" transport with the browsers.
Not a simple engineering project to duplicate, but definitely do-able. If you go ahead with this, please consider making the relevant software open source.
FOR SPECIFIC NUM:
SELECT COUNT(1) FROM YOUR_TABLE WHERE NUM = 1
FOR ALL NUM:
SELECT NUM, COUNT(1) FROM YOUR_TABLE GROUP BY NUM
CREATE OR REPLACE PACKAGE BODY TEST AS
FUNCTION GET_UPS(
TIMESPAN_IN IN VARCHAR2 DEFAULT 'MONTLHY',
STARTING_DATE_IN DATE,
ENDING_DATE_IN DATE
)RETURN MEASURE_TABLE IS
T MEASURE_TABLE;
BEGIN
**SELECT MEASURE_RECORD(L4_ID , L6_ID ,L8_ID ,YEAR ,
PERIOD,VALUE ) BULK COLLECT INTO T
FROM ...**
;
RETURN T;
END GET_UPS;
END TEST;
Here's a quick one-line hack that I occasionally use to temporarily turn on log4j debug logging in a JUnit test:
Logger.getRootLogger().setLevel(Level.DEBUG);
or if you want to avoid adding imports:
org.apache.log4j.Logger.getRootLogger().setLevel(
org.apache.log4j.Level.DEBUG);
Note: this hack doesn't work in log4j2 because setLevel
has been removed from the API, and there doesn't appear to be equivalent functionality.
The command clang
is for C, and the command clang++
is for C++.
FYI you can also get this error if EF Migrations tries to run with no Db configured, for example in a Test Project.
Chased this for hours before I figured out that it was erroring on a query, but, not because of the query but because it was when Migrations kicked in to try to create the Db.
Sessions - what Chris Thompson said.
Instantiation - a servlet is instantiated when the container receives the first request mapped to the servlet (unless the servlet is configured to load on startup with the <load-on-startup>
element in web.xml
). The same instance is used to serve subsequent requests.
To put in layman’s term :
without xmlns:android=”http://schemas.android.com/apk/res/android” android related tags wont be recognized in the xml document of our layout.
For the allowed characters you can use
^[a-zA-Z0-9~@#$^*()_+=[\]{}|\\,.?: -]*$
to validate a complete string that should consist of only allowed characters. Note that -
is at the end (because otherwise it'd be a range) and a few characters are escaped.
For the invalid characters you can use
[<>'"/;`%]
to check for them.
To combine both into a single regex you can use
^(?=[a-zA-Z0-9~@#$^*()_+=[\]{}|\\,.?: -]*$)(?!.*[<>'"/;`%])
but you'd need a regex engine that allows lookahead.
In C++ (or in C with C-style casts), you could create the function:
/* Function to control # of decimal places to be output for x */
double showDecimals(const double& x, const int& numDecimals) {
int y=x;
double z=x-y;
double m=pow(10,numDecimals);
double q=z*m;
double r=round(q);
return static_cast<double>(y)+(1.0/m)*r;
}
Then std::cout << showDecimals(37.777779,2);
would produce: 37.78.
Obviously you don't really need to create all 5 variables in that function, but I leave them there so you can see the logic. There are probably simpler solutions, but this works well for me--especially since it allows me to adjust the number of digits after the decimal place as I need.
How to add new line in Markdown presentation?
Check the following resource Line Return
To force a line return, place two empty spaces at the end of a line.
a very simple, one-line solution, is to add line-heigth to the div, having in mind that all the div's text will go bottom.
CSS:
#layer{width:198px;
height:48px;
line-height:72px;
border:1px #000 solid}
#layer a{text-decoration:none;}
HTML:
<div id="layer">
<a href="#">text at div's bottom.</a>
</div>
keep in mind that this is a practical and fast solution when you just want text inside div to go down, if you need to combine images and stuff, you will have to code a bit more complex and responsive CSS
multipart/form-data
Note. Please consult RFC2388 for additional information about file uploads, including backwards compatibility issues, the relationship between "multipart/form-data" and other content types, performance issues, etc.
Please consult the appendix for information about security issues for forms.
The content type "application/x-www-form-urlencoded" is inefficient for sending large quantities of binary data or text containing non-ASCII characters. The content type "multipart/form-data" should be used for submitting forms that contain files, non-ASCII data, and binary data.
The content type "multipart/form-data" follows the rules of all multipart MIME data streams as outlined in RFC2045. The definition of "multipart/form-data" is available at the [IANA] registry.
A "multipart/form-data" message contains a series of parts, each representing a successful control. The parts are sent to the processing agent in the same order the corresponding controls appear in the document stream. Part boundaries should not occur in any of the data; how this is done lies outside the scope of this specification.
As with all multipart MIME types, each part has an optional "Content-Type" header that defaults to "text/plain". User agents should supply the "Content-Type" header, accompanied by a "charset" parameter.
application/x-www-form-urlencoded
This is the default content type. Forms submitted with this content type must be encoded as follows:
Control names and values are escaped. Space characters are replaced by +', and then reserved characters are escaped as described in [RFC1738], section 2.2: Non-alphanumeric characters are replaced by
%HH', a percent sign and two hexadecimal digits representing the ASCII code of the character. Line breaks are represented as "CR LF" pairs (i.e., %0D%0A').
The control names/values are listed in the order they appear in the document. The name is separated from the value by
=' and name/value pairs are separated from each other by `&'.
application/x-www-form-urlencoded
the body of the HTTP message sent to the server is essentially one giant query string -- name/value pairs are separated by the ampersand (&), and names are separated from values by the equals symbol (=). An example of this would be:
MyVariableOne=ValueOne&MyVariableTwo=ValueTwo
The content type "application/x-www-form-urlencoded" is inefficient for sending large quantities of binary data or text containing non-ASCII characters. The content type "multipart/form-data" should be used for submitting forms that contain files, non-ASCII data, and binary data.
You could try Ladon. It serves up multiple web server protocols at once so you can offer more flexibility at the client side.
You can use At
from pydash:
from pydash import at
dict = {'a': 1, 'b': 2, 'c': 3}
list = at(dict, 'a', 'b')
list == [1, 2]
Readonly is an attribute as defined in html, so treat it like one.
You need to have something like readonly="readonly" in the object you are working with if you want it not to be editable. And if you want it to be editable again you won't have something like readonly='' (this is not standard if I understood correctly). You really need to remove the attribute as a whole.
As such, while using jquery adding it and removing it is what makes sense.
Set something readonly:
$("#someId").attr('readonly', 'readonly');
Remove readonly:
$("#someId").removeAttr('readonly');
This was the only alternative that really worked for me. Hope it helps!
There are the slideDown, slideUp, and slideToggle functions native to jquery 1.3+, and they work quite nicely...
https://api.jquery.com/category/effects/
You can use slideDown just like this:
$("test").slideDown("slow");
And if you want to combine effects and really go nuts I'd take a look at the animate function which allows you to specify a number of CSS properties to shape tween or morph into. Pretty fancy stuff, that.
The following simple test:
C++ Array vs Vector performance test explanation
contradicts the conclusions from "Comparison of assembly code generated for basic indexing, dereferencing, and increment operations on vectors and arrays/pointers."
There must be a difference between the arrays and vectors. The test says so... just try it, the code is there...
Although the GNUmake table toolkit has a true while
loop (whatever that means in GNUmake programming with its two or three phases of execution), if the thing which is needed is an iterative list, there is a simple solution with interval
. For the fun of it, we convert the numbers to hex too:
include gmtt/gmtt.mk
# generate a list of 20 numbers, starting at 3 with an increment of 5
NUMBER_LIST := $(call interval,3,20,5)
# convert the numbers in hexadecimal (0x0 as first operand forces arithmetic result to hex) and strip '0x'
NUMBER_LIST_IN_HEX := $(foreach n,$(NUMBER_LIST),$(call lstrip,$(call add,0x0,$(n)),0x))
# finally create the filenames with a simple patsubst
FILE_LIST := $(patsubst %,./a%.out,$(NUMBER_LIST_IN_HEX))
$(info $(FILE_LIST))
Output:
./a3.out ./a8.out ./ad.out ./a12.out ./a17.out ./a1c.out ./a21.out ./a26.out ./a2b.out ./a30.out ./a35.out ./a3a.out ./a3f.out ./a44.out ./a49.out ./a4e.out ./a53.out ./a58.out ./a5d.out ./a62.out
My issue was that end users would start typing in a textbox and receive autocomplete (ACP) suggestions and update the calling control if a suggestion was selected as the ACP is designed by default. However, I also needed to update multiple other controls (textboxes, DropDowns, etc...) with data specific to the end user's selection. I have been trying to figure out an elegant solution to the issue and I feel the one I developed is worth sharing and hopefully will save you at least some time.
WebMethod (SampleWM.aspx):
PURPOSE:
NOTES:
//Call to custom function to return SP results as a DataTable
// DataTable will consist of Field0 - Field5
Dim params As ArrayList = New ArrayList
params.Add("@QueryFilter|" & QueryFilter)
Dim dt As DataTable = Data.GetDataTableFromSP("AutoComplete", params, [ConnStr])
//Create a StringBuilder Obj to hold the JSON
//IE: [{"Field0":"0","Field1":"Test","Field2":"Jason","Field3":"Smith","Field4":"32","Field5":"888-555-1212"},{"Field0":"1","Field1":"Test2","Field2":"Jane","Field3":"Doe","Field4":"25","Field5":"888-555-1414"}]
Dim jStr As StringBuilder = New StringBuilder
//Loop the DataTable and convert row into JSON String
If dt.Rows.Count > 0 Then
jStr.Append("[")
Dim RowCnt As Integer = 1
For Each r As DataRow In dt.Rows
jStr.Append("{")
Dim ColCnt As Integer = 0
For Each c As DataColumn In dt.Columns
If ColCnt = 0 Then
jStr.Append("""" & c.ColumnName & """:""" & r(c.ColumnName) & """")
Else
jStr.Append(",""" & c.ColumnName & """:""" & r(c.ColumnName) & """")
End If
ColCnt += 1
Next
If Not RowCnt = dt.Rows.Count Then
jStr.Append("},")
Else
jStr.Append("}")
End If
RowCnt += 1
Next
jStr.Append("]")
End If
//Return JSON to WebMethod Caller
Return jStr.ToString
AutoComplete jQuery (AutoComplete.aspx):
$(function() {
$("#LookUp").autocomplete({
source: function (request, response) {
$.ajax({
type: "POST",
contentType: "application/json; charset=utf-8",
url: "SampleWM.aspx/GetAutoCompleteData",
dataType: "json",
data:'{QueryFilter: "' + request.term + '"}',
success: function (data) {
response($.map($.parseJSON(data.d), function (item) {
var AC = new Object();
//autocomplete default values REQUIRED
AC.label = item.Field0;
AC.value = item.Field1;
//extend values
AC.FirstName = item.Field2;
AC.LastName = item.Field3;
AC.Age = item.Field4;
AC.Phone = item.Field5;
return AC
}));
}
});
},
minLength: 3,
select: function (event, ui) {
$("#txtFirstName").val(ui.item.FirstName);
$("#txtLastName").val(ui.item.LastName);
$("#ddlAge").val(ui.item.Age);
$("#txtPhone").val(ui.item.Phone);
}
});
});
There is a better solution in pandas 0.24:
with pd.ExcelWriter(path, mode='a') as writer:
s.to_excel(writer, sheet_name='another sheet', index=False)
before:
after:
so upgrade your pandas now:
pip install --upgrade pandas
The advantage of lists appears if you need to insert items in the middle and don't want to start resizing the array and shifting things around.
You're correct in that this is typically not the case. I've had a few very specific cases like that, but not too many.
On debian / ubuntu you only need: libjpeg62-turbo-dev
So a simple sudo apt install libjpeg62-turbo-dev
and a pip install pillow
Object.keys(city)[0]; //return the key name at index 0
Object.values(city)[0] //return the key values at index 0
The following cites the C11 standard (final draft).
6.3.1.2: When any scalar value is converted to _Bool, the result is 0 if the value compares equal to 0; otherwise, the result is 1.
bool
(mapped by stdbool.h
to the internal name _Bool
for C) itself is an unsigned integer type:
... The type _Bool and the unsigned integer types that correspond to the standard signed integer types are the standard unsigned integer types.
According to 6.2.5p2:
An object declared as type _Bool is large enough to store the values 0 and 1.
AFAIK these definitions are semantically identical to C++ - with the minor difference of the built-in(!) names. bool
for C++ and _Bool
for C.
Note that C does not use the term rvalues as C++ does. However, in C pointers are scalars, so assigning a pointer to a _Bool
behaves as in C++.
Performing CRUD operations using Dapper is an easy task. I have mentioned the below examples that should help you in CRUD operations.
Code for CRUD:
Method #1: This method is used when you are inserting values from different entities.
using (IDbConnection db = new SqlConnection(ConfigurationManager.ConnectionStrings["myDbConnection"].ConnectionString))
{
string insertQuery = @"INSERT INTO [dbo].[Customer]([FirstName], [LastName], [State], [City], [IsActive], [CreatedOn]) VALUES (@FirstName, @LastName, @State, @City, @IsActive, @CreatedOn)";
var result = db.Execute(insertQuery, new
{
customerModel.FirstName,
customerModel.LastName,
StateModel.State,
CityModel.City,
isActive,
CreatedOn = DateTime.Now
});
}
Method #2: This method is used when your entity properties have the same names as the SQL columns. So, Dapper being an ORM maps entity properties with the matching SQL columns.
using (IDbConnection db = new SqlConnection(ConfigurationManager.ConnectionStrings["myDbConnection"].ConnectionString))
{
string insertQuery = @"INSERT INTO [dbo].[Customer]([FirstName], [LastName], [State], [City], [IsActive], [CreatedOn]) VALUES (@FirstName, @LastName, @State, @City, @IsActive, @CreatedOn)";
var result = db.Execute(insertQuery, customerViewModel);
}
Code for CRUD:
using (IDbConnection db = new SqlConnection(ConfigurationManager.ConnectionStrings["myDbConnection"].ConnectionString))
{
string selectQuery = @"SELECT * FROM [dbo].[Customer] WHERE FirstName = @FirstName";
var result = db.Query(selectQuery, new
{
customerModel.FirstName
});
}
Code for CRUD:
using (IDbConnection db = new SqlConnection(ConfigurationManager.ConnectionStrings["myDbConnection"].ConnectionString))
{
string updateQuery = @"UPDATE [dbo].[Customer] SET IsActive = @IsActive WHERE FirstName = @FirstName AND LastName = @LastName";
var result = db.Execute(updateQuery, new
{
isActive,
customerModel.FirstName,
customerModel.LastName
});
}
Code for CRUD:
using (IDbConnection db = new SqlConnection(ConfigurationManager.ConnectionStrings["myDbConnection"].ConnectionString))
{
string deleteQuery = @"DELETE FROM [dbo].[Customer] WHERE FirstName = @FirstName AND LastName = @LastName";
var result = db.Execute(deleteQuery, new
{
customerModel.FirstName,
customerModel.LastName
});
}
Additional useful info:
You can provide several og:images, whatsapp will use the last one. This will help with the problem that e.g. facebook want 1.91:1 ratio and whatsapp 1:1
def extended_string (word, length) :
extra_long_word = word * (length//len(word) + 1)
required_string = extra_long_word[:length]
return required_string
print(extended_string("abc", 7))
If you don't know the number of the plots you are going to plot you can change the colours once you have plotted them retrieving the number directly from the plot using .lines
, I use this solution:
import matplotlib.pyplot as plt
import numpy as np
fig1 = plt.figure()
ax1 = fig1.add_subplot(111)
for i in range(1,15):
ax1.plot(np.array([1,5])*i,label=i)
colormap = plt.cm.gist_ncar #nipy_spectral, Set1,Paired
colors = [colormap(i) for i in np.linspace(0, 1,len(ax1.lines))]
for i,j in enumerate(ax1.lines):
j.set_color(colors[i])
ax1.legend(loc=2)
Integer Types:
short -> signed short
signed short
unsigned short
int -> signed int
signed int
unsigned int
signed -> signed int
unsigned -> unsigned int
long -> signed long
signed long
unsigned long
Be careful of char:
char (is signed or unsigned depending on the implmentation)
signed char
unsigned char
download
attributeJust to allow user to download the image or other file you may use the HTML5 download
attribute.
Static file download
<a href="/images/image-name.jpg" download>
<!-- OR -->
<a href="/images/image-name.jpg" download="new-image-name.jpg">
Dynamic file download
In cases requesting image dynamically it is possible to emulate such download.
If your image is already loaded and you have the base64
source then:
function saveBase64AsFile(base64, fileName) {
var link = document.createElement("a");
document.body.appendChild(link); // for Firefox
link.setAttribute("href", base64);
link.setAttribute("download", fileName);
link.click();
}
Otherwise if image file is downloaded as Blob
you can use FileReader
to convert it to Base64:
function saveBlobAsFile(blob, fileName) {
var reader = new FileReader();
reader.onloadend = function () {
var base64 = reader.result ;
var link = document.createElement("a");
document.body.appendChild(link); // for Firefox
link.setAttribute("href", base64);
link.setAttribute("download", fileName);
link.click();
};
reader.readAsDataURL(blob);
}
Firefox
The anchor tag you are creating also needs to be added to the DOM in Firefox, in order to be recognized for click events (Link).
IE is not supported: Caniuse link
I've found this script example useful (from http://www.mrexcel.com/forum/excel-questions/898899-json-api-excel.html#post4332075 ):
Sub getData()
Dim Movie As Object
Dim scriptControl As Object
Set scriptControl = CreateObject("MSScriptControl.ScriptControl")
scriptControl.Language = "JScript"
With CreateObject("MSXML2.XMLHTTP")
.Open "GET", "http://www.omdbapi.com/?t=frozen&y=&plot=short&r=json", False
.send
Set Movie = scriptControl.Eval("(" + .responsetext + ")")
.abort
With Sheets(2)
.Cells(1, 1).Value = Movie.Title
.Cells(1, 2).Value = Movie.Year
.Cells(1, 3).Value = Movie.Rated
.Cells(1, 4).Value = Movie.Released
.Cells(1, 5).Value = Movie.Runtime
.Cells(1, 6).Value = Movie.Director
.Cells(1, 7).Value = Movie.Writer
.Cells(1, 8).Value = Movie.Actors
.Cells(1, 9).Value = Movie.Plot
.Cells(1, 10).Value = Movie.Language
.Cells(1, 11).Value = Movie.Country
.Cells(1, 12).Value = Movie.imdbRating
End With
End With
End Sub
The browser only allows numerical inputs when the type is set to "number". Details here.
You can use the type="text" and filter out any other than numerical input using JavaScript like descripted here
You should use the grep
-q
flag for quiet output. See the man pages below:
man grep output :
General Output Control
-q, --quiet, --silent
Quiet; do not write anything to standard output. Exit immediately with zero status
if any match is found, even if an error was detected. Also see the -s or
--no-messages option. (-q is specified by POSIX.)
This KornShell (ksh) script demos the grep
quiet output and is a solution to your question.
grepUtil.ksh :
#!/bin/ksh
#Initialize Variables
file=poet.txt
var=""
dir=tempDir
dirPath="/"${dir}"/"
searchString="poet"
#Function to initialize variables
initialize(){
echo "Entering initialize"
echo "Exiting initialize"
}
#Function to create File with Input
#Params: 1}Directory 2}File 3}String to write to FileName
createFileWithInput(){
echo "Entering createFileWithInput"
orgDirectory=${PWD}
cd ${1}
> ${2}
print ${3} >> ${2}
cd ${orgDirectory}
echo "Exiting createFileWithInput"
}
#Function to create File with Input
#Params: 1}directoryName
createDir(){
echo "Entering createDir"
mkdir -p ${1}
echo "Exiting createDir"
}
#Params: 1}FileName
readLine(){
echo "Entering readLine"
file=${1}
while read line
do
#assign last line to var
var="$line"
done <"$file"
echo "Exiting readLine"
}
#Check if file exists
#Params: 1}File
doesFileExit(){
echo "Entering doesFileExit"
orgDirectory=${PWD}
cd ${PWD}${dirPath}
#echo ${PWD}
if [[ -e "${1}" ]]; then
echo "${1} exists"
else
echo "${1} does not exist"
fi
cd ${orgDirectory}
echo "Exiting doesFileExit"
}
#Check if file contains a string quietly
#Params: 1}Directory Path 2}File 3}String to seach for in File
doesFileContainStringQuiet(){
echo "Entering doesFileContainStringQuiet"
orgDirectory=${PWD}
cd ${PWD}${1}
#echo ${PWD}
grep -q ${3} ${2}
if [ ${?} -eq 0 ];then
echo "${3} found in ${2}"
else
echo "${3} not found in ${2}"
fi
cd ${orgDirectory}
echo "Exiting doesFileContainStringQuiet"
}
#Check if file contains a string with output
#Params: 1}Directory Path 2}File 3}String to seach for in File
doesFileContainString(){
echo "Entering doesFileContainString"
orgDirectory=${PWD}
cd ${PWD}${1}
#echo ${PWD}
grep ${3} ${2}
if [ ${?} -eq 0 ];then
echo "${3} found in ${2}"
else
echo "${3} not found in ${2}"
fi
cd ${orgDirectory}
echo "Exiting doesFileContainString"
}
#-----------
#---Main----
#-----------
echo "Starting: ${PWD}/${0} with Input Parameters: {1: ${1} {2: ${2} {3: ${3}"
#initialize #function call#
createDir ${dir} #function call#
createFileWithInput ${dir} ${file} ${searchString} #function call#
doesFileExit ${file} #function call#
if [ ${?} -eq 0 ];then
doesFileContainStringQuiet ${dirPath} ${file} ${searchString} #function call#
doesFileContainString ${dirPath} ${file} ${searchString} #function call#
fi
echo "Exiting: ${PWD}/${0}"
grepUtil.ksh Output :
user@foo /tmp
$ ksh grepUtil.ksh
Starting: /tmp/grepUtil.ksh with Input Parameters: {1: {2: {3:
Entering createDir
Exiting createDir
Entering createFileWithInput
Exiting createFileWithInput
Entering doesFileExit
poet.txt exists
Exiting doesFileExit
Entering doesFileContainStringQuiet
poet found in poet.txt
Exiting doesFileContainStringQuiet
Entering doesFileContainString
poet
poet found in poet.txt
Exiting doesFileContainString
Exiting: /tmp/grepUtil.ksh
No, this is not possible. However, one could do something like this:
List<Integer> temp = new ArrayList<Integer>();
temp.add(Integer.valueOf(0));
temp.add(Integer.valueOf(2));
temp.add(Integer.valueOf(3));
temp.add(Integer.valueOf(4));
List<Integer> immutable = Collections.unmodifiableList(temp);
This requires using wrappers, and is a List, not an array, but is the closest you will get.
In most answers it is recommended to fill
the array because otherwise "you can't iterate over it", but this is not true. You can iterate an empty array, just not with forEach
. While loops, for of loops and for i loops work fine.
const count = Array(5);
Does not work.
console.log('---for each loop:---');
count.forEach((empty, index) => {
console.log(`counting ${index}`);
});
These work:
console.log('---for of loop:---');
for (let [index, empty] of count.entries()) {
console.log(`counting for of loop ${index}`);
}
console.log('---for i loop:---');
for (let i = 0, il = count.length; i < il; ++i) {
console.log(`counting for i loop ${i}`);
}
console.log('---while loop:---');
let index = 0;
while (index < count.length) {
console.log(`counting while loop ${index}`);
index++;
}
Check this fiddle with the above examples.
Also angulars *ngFor
works fine with an empty array:
<li *ngFor="let empty of count; let i = index" [ngClass]="
<span>Counting with *ngFor {{i}}</span>
</li>
apt-get install python-dev
...solved the problem for me.
if the data is already valid and already contains a pdf, word or image, then you could use a StreamWriter and save it.
This is the most easy way I found to achieve the result: Just use hr tag before the text, and set the margin top for text. Very short and easy to understand! jsfiddle
h2 {_x000D_
background-color: #ffffff;_x000D_
margin-top: -22px;_x000D_
width: 25%;_x000D_
}_x000D_
_x000D_
hr {_x000D_
border: 1px solid #e9a216;_x000D_
}
_x000D_
<br>_x000D_
_x000D_
<hr>_x000D_
<h2>ABOUT US</h2>
_x000D_
I create the tag like this and then I push it to GitHub:
git tag -a v1.1 -m "Version 1.1 is waiting for review"
git push --tags
Counting objects: 1, done.
Writing objects: 100% (1/1), 180 bytes, done.
Total 1 (delta 0), reused 0 (delta 0)
To [email protected]:neoneye/triangle_draw.git
* [new tag] v1.1 -> v1.1
You don't need to use a second repository - you can do commands like git checkout
and git commit
on a bare repository, if only you supply a dummy work directory using the --work-tree
option.
Prepare a dummy directory:
$ rm -rf /tmp/empty_directory
$ mkdir /tmp/empty_directory
Create the master
branch without a parent (works even on a completely empty repo):
$ cd your-bare-repository.git
$ git checkout --work-tree=/tmp/empty_directory --orphan master
Switched to a new branch 'master' <--- abort if "master" already exists
Create a commit (it can be a message-only, without adding any files, because what you need is simply having at least one commit):
$ git commit -m "Initial commit" --allow-empty --work-tree=/tmp/empty_directory
$ git branch
* master
Clean up the directory, it is still empty.
$ rmdir /tmp/empty_directory
Tested on git 1.9.1. (Specifically for OP, the posh-git is just a PowerShell wrapper for standard git.)
As a more general solution (but ASCII only!), to include any other separators between words (like commas and semicolons), I suggest:
String s = "I want to walk my dog, cat, and tarantula; maybe even my tortoise.";
String[] words = s.split("\\W+");
The regex means that the delimiters will be anything that is not a word [\W], in groups of at least one [+]. Because [+] is greedy, it will take for instance ';' and ' ' together as one delimiter.
Statement interface Doc
SUMMARY:
void setFetchSize(int rows)
Gives the JDBC driver a hint as to the number of rows that should be fetched from the database when more rows are needed.
Read this ebook J2EE and beyond By Art Taylor
There are two answers above up-to-now and they are both long (and tl;dr too short IMHO), so I write summary from my experience starting to use new java.time library (applicable as noted in other answers to Java version 8+). ISO 8601 sets standard way to write dates: YYYY-MM-DD
so the format of date-time is only as below (could be 0, 3, 6 or 9 digits for milliseconds) and no formatting string necessary:
import java.time.Instant;
public static void main(String[] args) {
String date="2010-10-02T12:23:23Z";
try {
Instant myDate = Instant.parse(date);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
I did not need it, but as getting year is in code from the question, then:
it is trickier, cannot be done from Instant
directly, can be done via Calendar
in way of questions Get integer value of the current year in Java and Converting java.time to Calendar but IMHO as format is fixed substring is more simple to use:
myDate.toString().substring(0,4);
/**
* Repeat a string `n`-times (recursive)
* @param {String} s - The string you want to repeat.
* @param {Number} n - The times to repeat the string.
* @param {String} d - A delimiter between each string.
*/
var repeat = function (s, n, d) {
return --n ? s + (d || "") + repeat(s, n, d) : "" + s;
};
var foo = "foo";
console.log(
"%s\n%s\n%s\n%s",
repeat(foo), // "foo"
repeat(foo, 2), // "foofoo"
repeat(foo, "2"), // "foofoo"
repeat(foo, 2, "-") // "foo-foo"
);
The default value is indeed false.
However you can't use a local variable is it's not been assigned first.
You can use the default keyword to verify:
bool foo = default(bool);
if (!foo) { Console.WriteLine("Default is false"); }
div {
display: flex;
justify-content: space-between;
}
_x000D_
<div>
<p>Item one</p>
<a>Item two</a>
</div>
_x000D_
I have suffered a similar problem, with a Sub not accessible in runtime, but absolutely legal in editor. It was solved by changing destination Framework from 4.5.1 to 4.5. It seems that my IIS only had 4.5 version.
:)
The problem was that clicking the anchor still triggered a click in your <div>
. That's called "event bubbling".
In fact, there are multiple solutions:
Checking in the DIV click event handler whether the actual target element was the anchor
→ jsFiddle
$('.expandable-panel-heading').click(function (evt) {
if (evt.target.tagName != "A") {
alert('123');
}
// Also possible if conditions:
// - evt.target.id != "ancherComplaint"
// - !$(evt.target).is("#ancherComplaint")
});
$("#ancherComplaint").click(function () {
alert($(this).attr("id"));
});
Stopping the event propagation from the anchor click listener
→ jsFiddle
$("#ancherComplaint").click(function (evt) {
evt.stopPropagation();
alert($(this).attr("id"));
});
:not(#ancherComplaint)
This was unnecessary because there is no element with the class .expandable-panel-heading
which also have #ancherComplaint
as its ID.
I assume that you wanted to suppress the event for the anchor. That cannot work in that manner because both selectors (yours and mine) select the exact same DIV. The selector has no influence on the listener when it is called; it only sets the list of elements to which the listeners should be registered. Since this list is the same in both versions, there exists no difference.
You can dump the value in hex using UTL_RAW.CAST_TO_RAW(UTL_RAW.CAST_TO_VARCHAR2())
.
SELECT b FROM foo;
-- (BLOB)
SELECT UTL_RAW.CAST_TO_RAW(UTL_RAW.CAST_TO_VARCHAR2(b))
FROM foo;
-- 1F8B080087CDC1520003F348CDC9C9D75128CF2FCA49D1E30200D7BBCDFC0E000000
This is handy because you this is the same format used for inserting into BLOB columns:
CREATE GLOBAL TEMPORARY TABLE foo (
b BLOB);
INSERT INTO foo VALUES ('1f8b080087cdc1520003f348cdc9c9d75128cf2fca49d1e30200d7bbcdfc0e000000');
DESC foo;
-- Name Null Type
-- ---- ---- ----
-- B BLOB
However, at a certain point (2000 bytes?) the corresponding hex string exceeds Oracle’s maximum string length. If you need to handle that case, you’ll have to combine How do I get textual contents from BLOB in Oracle SQL with the documentation for DMBS_LOB.SUBSTR
for a more complicated approach that will allow you to see substrings of the BLOB.
It's Python; anything goes. Consider how to publish your documentation. Docstrings are invisible except to readers of your source code.
People really like to browse and search documentation on the web. To achieve that, use the documentation tool Sphinx. It's the de-facto standard for documenting Python projects. The product is beautiful - take a look at https://python-guide.readthedocs.org/en/latest/ . The website Read the Docs will host your docs for free.
If you are running IIS on your PC you can add the directory that you are trying to reach as a Virtual Directory. To do this you right-click on your Site in ISS and press "Add Virtual Directory". Name the virtual folder. Point the virtual folder to your folder location on your local PC. You also have to supply credentials that has privileges to access the specific folder eg. HOSTNAME\username and password. After that you can access the file in the virtual folder as any other file on your site.
http://sitename.com/virtual_folder_name/filename.fileextension
By the way, this also works with Chrome that otherwise does not accept the file-protocol file://
Hope this helps someone :)
Yes. In your login
module, just export a single function that takes the db
as its argument. For example:
module.exports = function(db) {
...
};
In internet explorer, if the new url is from the same domain as the current url, the window will be open without an address bar. Otherwise, it will cause an address bar to appear. One workaround is to open a page from the same domain and then redirect from that page.
The "0x" counts towards the eight character count. You need "%#010x"
.
Note that #
does not append the 0x to 0 - the result will be 0000000000
- so you probably actually should just use "0x%08x"
anyway.
Prepending the Linux command timeout
isn't a bad workaround and it worked for me.
cmd = "timeout 20 "+ cmd
subprocess.Popen(cmd.split(), stdout=subprocess.PIPE, stderr=subprocess.PIPE)
(output, err) = p.communicate()
Based on @md-nazrul-islam reply, This is what I did with SCSS:
ul.ui-autocomplete {
position: absolute;
top: 100%;
left: 0;
z-index: 1000;
float: left;
display: none;
min-width: 160px;
margin: 0 0 10px 25px;
list-style: none;
background-color: #ffffff;
border: 1px solid #ccc;
border-color: rgba(0, 0, 0, 0.2);
//@include border-radius(5px);
@include box-shadow( rgba(0, 0, 0, 0.1) 0 5px 10px );
@include background-clip(padding-box);
*border-right-width: 2px;
*border-bottom-width: 2px;
li.ui-menu-item{
padding:0 .5em;
line-height:2em;
font-size:.8em;
&.ui-state-focus{
background: #F7F7F7;
}
}
}
Its very easy and simple. Do this
from dateutil.relativedelta import relativedelta
from datetime import datetime
today_date = datetime.today()
print "todays date time: %s" %today_date
one_month_ago = today_date - relativedelta(months=1)
print "one month ago date time: %s" % one_month_ago
print "one month ago date: %s" % one_month_ago.date()
Here is the output: $python2.7 main.py
todays date time: 2016-09-06 02:13:01.937121
one month ago date time: 2016-08-06 02:13:01.937121
one month ago date: 2016-08-06
Look at the following commands (especially the commented block).
DROP TABLE foo;
DROP TABLE bar;
CREATE TABLE foo (a int, b text);
CREATE TABLE bar (a serial, b text);
INSERT INTO foo (a, b) SELECT i, 'foo ' || i::text FROM generate_series(1, 5) i;
INSERT INTO bar (b) SELECT 'bar ' || i::text FROM generate_series(1, 5) i;
-- blocks of commands to turn foo into bar
CREATE SEQUENCE foo_a_seq;
ALTER TABLE foo ALTER COLUMN a SET DEFAULT nextval('foo_a_seq');
ALTER TABLE foo ALTER COLUMN a SET NOT NULL;
ALTER SEQUENCE foo_a_seq OWNED BY foo.a; -- 8.2 or later
SELECT MAX(a) FROM foo;
SELECT setval('foo_a_seq', 5); -- replace 5 by SELECT MAX result
INSERT INTO foo (b) VALUES('teste');
INSERT INTO bar (b) VALUES('teste');
SELECT * FROM foo;
SELECT * FROM bar;
This question is a bit pointless, because anyways c is compiled to assembler. But, the assembler produced by optimizing compilers is almost fully optimized, so unless you did twenty doctorates on optimizing specific assembly, you can't beat the compiler.
Sadly there are no operation-assignment
operators in VBA.
(Addition-assignment +=
are available in VB.Net)
Pointless workaround;
Sub Inc(ByRef i As Integer)
i = i + 1
End Sub
...
Static value As Integer
inc value
inc value
Control has a property called Parent, which will give the parent control. http://msdn.microsoft.com/en-us/library/system.windows.forms.control.parent.aspx
eg Control p = this.Parent;
On latest version of NPM you can just do:
npm install gitAuthor/gitRepo#tag
If the repo is a valid NPM package it will be auto-aliased in package.json as:
{
"NPMPackageName": "gitAuthor/gitRepo#tag"
}
If you could add this to @justingordon 's answer there is no need for manual aliasing now !
I have used this CSS code and it worked for me:
html {
height: 100%;
}
body {
background: #f6cb4a; /* Old browsers */
background: -moz-linear-gradient(top, #f2b600 0%, #f6cb4a 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#f2b600), color-stop(100%,#f6cb4a)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top, #f2b600 0%,#f6cb4a 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top, #f2b600 0%,#f6cb4a 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top, #f2b600 0%,#f6cb4a 100%); /* IE10+ */
background: linear-gradient(top, #f2b600 0%,#f6cb4a 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#f2b600', endColorstr='#f6cb4a',GradientType=0 ); /* IE6-9 */
height: 100%;
background-repeat: no-repeat;
background-attachment: fixed;
width: 100%;
background-position: 0px 0px;
}
A related information is that you can create your own great gradients at http://www.colorzilla.com/gradient-editor/
/Sten
Try jQuery's delegate()
function, like so:
$(document).ready(function(){
$("div.custList table").delegate('tr', 'click', function() {
alert("You clicked my <tr>!");
//get <td> element values here!!??
});
});
A delegate works in the same way as live()
except that live()
cannot be applied to chained items, whereas delegate()
allows you to specify an element within an element to act on.
Assuming this branch isn't an external or a symlink, removing the branch should be as simple as:
svn rm branches/< mybranch >
svn ci -m "message"
If you'd like to do this in the repository then update to remove it from your working copy you can do something like:
svn rm http://< myurl >/< myrepo >/branches/< mybranch >
Then run:
svn update
Do you have a bean declared in your context file that has an id of "articleService"? I believe that autowiring matches the id of a bean in your context files with the variable name that you are attempting to Autowire.
I think using the STL method 'remove_if
' from could help to prevent some weird issue when trying to attempt to delete the object that is wrapped by the iterator.
This solution may be less efficient.
Let's say we have some kind of container, like vector or a list called m_bullets:
Bullet::Ptr is a shared_pr<Bullet>
'it
' is the iterator that 'remove_if
' returns, the third argument is a lambda function that is executed on every element of the container. Because the container contains Bullet::Ptr
, the lambda function needs to get that type(or a reference to that type) passed as an argument.
auto it = std::remove_if(m_bullets.begin(), m_bullets.end(), [](Bullet::Ptr bullet){
// dead bullets need to be removed from the container
if (!bullet->isAlive()) {
// lambda function returns true, thus this element is 'removed'
return true;
}
else{
// in the other case, that the bullet is still alive and we can do
// stuff with it, like rendering and what not.
bullet->render(); // while checking, we do render work at the same time
// then we could either do another check or directly say that we don't
// want the bullet to be removed.
return false;
}
});
// The interesting part is, that all of those objects were not really
// completely removed, as the space of the deleted objects does still
// exist and needs to be removed if you do not want to manually fill it later
// on with any other objects.
// erase dead bullets
m_bullets.erase(it, m_bullets.end());
'remove_if
' removes the container where the lambda function returned true and shifts that content to the beginning of the container. The 'it
' points to an undefined object that can be considered garbage. Objects from 'it' to m_bullets.end() can be erased, as they occupy memory, but contain garbage, thus the 'erase' method is called on that range.
The two are not exactly the same. I couldn't remember the exact differences, but they are outlined very well in What's quicker and better to determine if an array key exists in PHP?.
The common consensus seems to be to use isset whenever possible, because it is a language construct and therefore faster. However, the differences should be outlined above.
You could use former Instantiations product CodePro AnalytiX. This eclipse plugin provides you suchlike statistics in code metrics view. This is provided by Google free of charge.
i have the same problem on ubuntu 15.10. Please try download plugin locally e.g. https://github.com/lmenezes/elasticsearch-kopf/archive/master.zip and install with this command:
sudo /usr/share/elasticsearch/bin/plugin install file:/home/dev/Downloads/elasticsearch-kopf-master.zip
Path maybe different depending on your environment.
Regards.
If you don't care what groups the users were in, and just want a big ol' list of users - this does the job:
$Groups = Get-ADGroup -Filter {Name -like "AB*"}
$rtn = @(); ForEach ($Group in $Groups) {
$rtn += (Get-ADGroupMember -Identity "$($Group.Name)" -Recursive)
}
Then the results:
$rtn | ft -autosize
If you have Google analytics or Facebook api in you app, you need to check all of them to make sure it works!
Edit: This is an old answer - see comments or other answers for an exact answer.
You could simulate a focus/click event by having something like the following. (adapted from $(window).blur event affecting Iframe)
$(window).blur(function () {_x000D_
// check focus_x000D_
if ($('iframe').is(':focus')) {_x000D_
console.log("iframe focused");_x000D_
$(document.activeElement).trigger("focus");// Could trigger click event instead_x000D_
}_x000D_
else {_x000D_
console.log("iframe unfocused");_x000D_
} _x000D_
});_x000D_
_x000D_
//Test_x000D_
$('#iframe_id').on('focus', function(e){_x000D_
console.log(e);_x000D_
console.log("hello im focused");_x000D_
})
_x000D_
Some people find the following alternative syntax easier to see what is going on:
select t1.value,t2.value
from MyTable t1
inner join MyTable t2 on
t1.id = t2.id
where t1.id = @id
If you haven't got python installed along with all the node-gyp dependencies, simply open Powershell or Git Bash with administrator privileges and execute:
npm install --global --production windows-build-tools
and then to install the package:
npm install --global node-gyp
once installed, you will have all the node-gyp dependencies downloaded, but you still need the environment variable. Validate Python is indeed found in the correct folder:
C:\Users\ben\.windows-build-tools\python27\python.exe
Note - it uses python 2.7 not 3.x as it is not supported
If it doesn't moan, go ahead and create your (user) environment variable:
setx PYTHON "%USERPROFILE%\.windows-build-tools\python27\python.exe"
restart cmd, and verify the variable exists via set PYTHON
which should return the variable
Lastly re-apply npm install <module>
This is a bad way of doing it, but it worked for me when trying to interpret escaped octals passed in a string argument.
input_string = eval('b"' + sys.argv[1] + '"')
It's worth mentioning that there is a difference between eval and ast.literal_eval (eval being way more unsafe). See Using python's eval() vs. ast.literal_eval()?
If the button is placed in a Flex
widget (including Row
& Column
), you can wrap it using an Expanded Widget to fill the available space.
It's somewhat weird to read but yes, the exception will bubble up to the calling code - but only if you await
or Wait()
the call to Foo
.
public async Task Foo()
{
var x = await DoSomethingAsync();
}
public async void DoFoo()
{
try
{
await Foo();
}
catch (ProtocolException ex)
{
// The exception will be caught because you've awaited
// the call in an async method.
}
}
//or//
public void DoFoo()
{
try
{
Foo().Wait();
}
catch (ProtocolException ex)
{
/* The exception will be caught because you've
waited for the completion of the call. */
}
}
Async void methods have different error-handling semantics. When an exception is thrown out of an async Task or async Task method, that exception is captured and placed on the Task object. With async void methods, there is no Task object, so any exceptions thrown out of an async void method will be raised directly on the SynchronizationContext that was active when the async void method started. - https://msdn.microsoft.com/en-us/magazine/jj991977.aspx
Note that using Wait() may cause your application to block, if .Net decides to execute your method synchronously.
This explanation http://www.interact-sw.co.uk/iangblog/2010/11/01/csharp5-async-exceptions is pretty good - it discusses the steps the compiler takes to achieve this magic.
You might consider this for guidelines on when to go for struct or class, https://msdn.microsoft.com/en-us/library/ms229017%28v=vs.110%29.aspx .
v CONSIDER defining a struct instead of a class if instances of the type are small and commonly short-lived or are commonly embedded in other objects.
X AVOID defining a struct unless the type has all of the following characteristics:
It logically represents a single value, similar to primitive types (int, double, etc.).
It has an instance size under 16 bytes.
It is immutable.
It will not have to be boxed frequently.
Its not the most pythonic answer, but I'll put it here for fun because it's a neat lesson in recursion
def find_files( files, dirs=[], extensions=[]):
new_dirs = []
for d in dirs:
try:
new_dirs += [ os.path.join(d, f) for f in os.listdir(d) ]
except OSError:
if os.path.splitext(d)[1] in extensions:
files.append(d)
if new_dirs:
find_files(files, new_dirs, extensions )
else:
return
On my machine I have two folders, root
and root2
mender@multivax ]ls -R root root2
root:
temp1 temp2
root/temp1:
temp1.1 temp1.2
root/temp1/temp1.1:
f1.mid
root/temp1/temp1.2:
f.mi f.mid
root/temp2:
tmp.mid
root2:
dummie.txt temp3
root2/temp3:
song.mid
Lets say I want to find all .txt
and all .mid
files in either of these directories, then I can just do
files = []
find_files( files, dirs=['root','root2'], extensions=['.mid','.txt'] )
print(files)
#['root2/dummie.txt',
# 'root/temp2/tmp.mid',
# 'root2/temp3/song.mid',
# 'root/temp1/temp1.1/f1.mid',
# 'root/temp1/temp1.2/f.mid']
You need an HTML element for each column in your layout.
I’d suggest:
<div class="two-col">
<div class="col1">
<label for="field1">Field One:</label>
<input id="field1" name="field1" type="text">
</div>
<div class="col2">
<label for="field2">Field Two:</label>
<input id="field2" name="field2" type="text">
</div>
</div>
.two-col {
overflow: hidden;/* Makes this div contain its floats */
}
.two-col .col1,
.two-col .col2 {
width: 49%;
}
.two-col .col1 {
float: left;
}
.two-col .col2 {
float: right;
}
.two-col label {
display: block;
}
You could read line by line so you don't have to read the entire all at once (probably at all)
int i=0
while(!stream.eof() && i!=lineNum)
stream.readLine()
i++
line = stream.readLine()
The count
method of NSArray
returns an NSUInteger
, and on the 64-bit OS X platform
NSUInteger
is defined as unsigned long
, andunsigned long
is a 64-bit unsigned integer.int
is a 32-bit integer.So int
is a "smaller" datatype than NSUInteger
, therefore the compiler warning.
See also NSUInteger in the "Foundation Data Types Reference":
When building 32-bit applications, NSUInteger is a 32-bit unsigned integer. A 64-bit application treats NSUInteger as a 64-bit unsigned integer.
To fix that compiler warning, you can either declare the local count
variable as
NSUInteger count;
or (if you are sure that your array will never contain more than 2^31-1
elements!),
add an explicit cast:
int count = (int)[myColors count];
You need to install a plugin, There is a free one from the eclipse foundation called the Web Tools Platform. It has all the development functionality that you'll need.
You can get the Java EE Edition of eclipse with has it pre-installed.
To create and run your first servlet:
doGet()
method.That should do it for you. You can use ant to build here if that's what you'd like but eclipse will actually do the build and automatically deploy the changes to the server. With Tomcat you might have to restart it every now and again depending on the change.
Yeah, I know this is an 8 year-old question, but I was told that it was possible to statically link against a shared-object library and this was literally the top hit when I searched for more information about it.
To actually demonstrate that statically linking a shared-object library is not possible with ld
(gcc
's linker) -- as opposed to just a bunch of people insisting that it's not possible -- use the following gcc
command:
gcc -o executablename objectname.o -Wl,-Bstatic -l:libnamespec.so
(Of course you'll have to compile objectname.o
from sourcename.c
, and you should probably make up your own shared-object library as well. If you do, use -Wl,--library-path,.
so that ld can find your library in the local directory.)
The actual error you receive is:
/usr/bin/ld: attempted static link of dynamic object `libnamespec.so'
collect2: error: ld returned 1 exit status
Hope that helps.
You can also do this without using groupby or loc. By simply including the condition in code. Let the name of dataframe be df. Then you can try :
df[df['a']==1]['b'].sum()
or you can also try :
sum(df[df['a']==1]['b'])
Another way could be to use the numpy library of python :
import numpy as np
print(np.where(df['a']==1, df['b'],0).sum())
Maybe it is to late, but I've created utility methods to manage this issue.
Just add this methods to your utils:
public static void setCheckBoxOffset(@NonNull CheckBox checkBox, @DimenRes int offsetRes) {
float offset = checkBox.getResources().getDimension(offsetRes);
setCheckBoxOffsetPx(checkBox, offset);
}
public static void setCheckBoxOffsetPx(@NonNull CheckBox checkBox, float offsetInPx) {
int leftPadding;
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.JELLY_BEAN) {
leftPadding = checkBox.getPaddingLeft() + (int) (offsetInPx + 0.5f);
} else {
leftPadding = (int) (offsetInPx + 0.5f);
}
checkBox.setPadding(leftPadding,
checkBox.getPaddingTop(),
checkBox.getPaddingRight(),
checkBox.getPaddingBottom());
}
And use like this:
ViewUtils.setCheckBoxOffset(mAgreeTerms, R.dimen.space_medium);
or like this:
// Be careful with this usage, because it sets padding in pixels, not in dp!
ViewUtils.setCheckBoxOffsetPx(mAgreeTerms, 100f);
if you are getting id from url try
$id = (isset($_GET['id']) ? $_GET['id'] : '');
if getting from form you need to use POST
method cause your form has method="post"
$id = (isset($_POST['id']) ? $_POST['id'] : '');
For php notices use isset()
or empty()
to check values exist or not or initialize variable first with blank or a value
$id= '';
>>> '99'.zfill(5)
'00099'
>>> '99'.rjust(5,'0')
'00099'
if you want the opposite:
>>> '99'.ljust(5,'0')
'99000'
You can either
fig, ax = plt.subplots() #create figure and axes
candlestick(ax, quotes, ...)
or
candlestick(plt.gca(), quotes) #get the axis when calling the function
The first gives you more flexibility. The second is much easier if candlestick is the only thing you want to plot
Pylab has frange
(a wrapper, actually, for matplotlib.mlab.frange
):
>>> import pylab as pl
>>> pl.frange(0.5,5,0.5)
array([ 0.5, 1. , 1.5, 2. , 2.5, 3. , 3.5, 4. , 4.5, 5. ])
I assume we are discussing division of integers.
Consider that I got two number 1502 and 30, and I wanted to calculate 1502/30. This is how we do this:
First we align 30 with 1501 at its most significant figure; 30 becomes 3000. And compare 1501 with 3000, 1501 contains 0 of 3000. Then we compare 1501 with 300, it contains 5 of 300, then compare (1501-5*300) with 30. At so at last we got 5*(10^1) = 50 as the result of this division.
Now convert both 1501 and 30 into binary digits. Then instead of multiplying 30 with (10^x) to align it with 1501, we multiplying (30) in 2 base with 2^n to align. And 2^n can be converted into left shift n positions.
Here is the code:
int divide(int a, int b){
if (b != 0)
return;
//To check if a or b are negative.
bool neg = false;
if ((a>0 && b<0)||(a<0 && b>0))
neg = true;
//Convert to positive
unsigned int new_a = (a < 0) ? -a : a;
unsigned int new_b = (b < 0) ? -b : b;
//Check the largest n such that b >= 2^n, and assign the n to n_pwr
int n_pwr = 0;
for (int i = 0; i < 32; i++)
{
if (((1 << i) & new_b) != 0)
n_pwr = i;
}
//So that 'a' could only contain 2^(31-n_pwr) many b's,
//start from here to try the result
unsigned int res = 0;
for (int i = 31 - n_pwr; i >= 0; i--){
if ((new_b << i) <= new_a){
res += (1 << i);
new_a -= (new_b << i);
}
}
return neg ? -res : res;
}
Didn't test it, but you get the idea.
How to fade borders with CSS:
<div style="border-style:solid;border-image:linear-gradient(red, transparent) 1;border-bottom:0;">Text</div>
Please excuse the inline styles for the sake of demonstration. The 1 property for the border-image is border-image-slice, and in this case defines the border as a single continuous region.
Source: Gradient Borders
Use JSON lib E.g. http://www.json.org/java/
// Assume you have a Map<String, String> in JSONObject jdata
@SuppressWarnings("unchecked")
Iterator<String> nameItr = jdata.keys();
Map<String, String> outMap = new HashMap<String, String>();
while(nameItr.hasNext()) {
String name = nameItr.next();
outMap.put(name, jdata.getString(name));
}
Array.prototype.reduce
makes it very clean.
["r", "g", "b"].reduce(function(res) {
return res + ("0" + ~~(Math.random()*256).toString(16)).slice(-2)
}, "#")
It needs a shim for old browsers.
Yes just add the setters/getters with public modifier ;)
Here is how I would do it:
bool intersects(CircleType circle, RectType rect)
{
circleDistance.x = abs(circle.x - rect.x);
circleDistance.y = abs(circle.y - rect.y);
if (circleDistance.x > (rect.width/2 + circle.r)) { return false; }
if (circleDistance.y > (rect.height/2 + circle.r)) { return false; }
if (circleDistance.x <= (rect.width/2)) { return true; }
if (circleDistance.y <= (rect.height/2)) { return true; }
cornerDistance_sq = (circleDistance.x - rect.width/2)^2 +
(circleDistance.y - rect.height/2)^2;
return (cornerDistance_sq <= (circle.r^2));
}
Here's how it works:
The first pair of lines calculate the absolute values of the x and y difference between the center of the circle and the center of the rectangle. This collapses the four quadrants down into one, so that the calculations do not have to be done four times. The image shows the area in which the center of the circle must now lie. Note that only the single quadrant is shown. The rectangle is the grey area, and the red border outlines the critical area which is exactly one radius away from the edges of the rectangle. The center of the circle has to be within this red border for the intersection to occur.
The second pair of lines eliminate the easy cases where the circle is far enough away from the rectangle (in either direction) that no intersection is possible. This corresponds to the green area in the image.
The third pair of lines handle the easy cases where the circle is close enough to the rectangle (in either direction) that an intersection is guaranteed. This corresponds to the orange and grey sections in the image. Note that this step must be done after step 2 for the logic to make sense.
The remaining lines calculate the difficult case where the circle may intersect the corner of the rectangle. To solve, compute the distance from the center of the circle and the corner, and then verify that the distance is not more than the radius of the circle. This calculation returns false for all circles whose center is within the red shaded area and returns true for all circles whose center is within the white shaded area.
Autolayout just like UILabel
, with the link detection, text selection, editing and scrolling of UITextView
.
Automatically handles
A lot of these answers got me 90% there, but none were fool-proof.
Drop in this UITextView
subclass and you're good.
#pragma mark - Init
- (instancetype)initWithFrame:(CGRect)frame textContainer:(nullable NSTextContainer *)textContainer
{
self = [super initWithFrame:frame textContainer:textContainer];
if (self) {
[self commonInit];
}
return self;
}
- (instancetype)initWithCoder:(NSCoder *)aDecoder
{
self = [super initWithCoder:aDecoder];
if (self) {
[self commonInit];
}
return self;
}
- (void)commonInit
{
// Try to use max width, like UILabel
[self setContentCompressionResistancePriority:UILayoutPriorityRequired forAxis:UILayoutConstraintAxisHorizontal];
// Optional -- Enable / disable scroll & edit ability
self.editable = YES;
self.scrollEnabled = YES;
// Optional -- match padding of UILabel
self.textContainer.lineFragmentPadding = 0.0;
self.textContainerInset = UIEdgeInsetsZero;
// Optional -- for selecting text and links
self.selectable = YES;
self.dataDetectorTypes = UIDataDetectorTypeLink | UIDataDetectorTypePhoneNumber | UIDataDetectorTypeAddress;
}
#pragma mark - Layout
- (CGFloat)widthPadding
{
CGFloat extraWidth = self.textContainer.lineFragmentPadding * 2.0;
extraWidth += self.textContainerInset.left + self.textContainerInset.right;
if (@available(iOS 11.0, *)) {
extraWidth += self.adjustedContentInset.left + self.adjustedContentInset.right;
} else {
extraWidth += self.contentInset.left + self.contentInset.right;
}
return extraWidth;
}
- (CGFloat)heightPadding
{
CGFloat extraHeight = self.textContainerInset.top + self.textContainerInset.bottom;
if (@available(iOS 11.0, *)) {
extraHeight += self.adjustedContentInset.top + self.adjustedContentInset.bottom;
} else {
extraHeight += self.contentInset.top + self.contentInset.bottom;
}
return extraHeight;
}
- (void)layoutSubviews
{
[super layoutSubviews];
// Prevents flashing of frame change
if (CGSizeEqualToSize(self.bounds.size, self.intrinsicContentSize) == NO) {
[self invalidateIntrinsicContentSize];
}
// Fix offset error from insets & safe area
CGFloat textWidth = self.bounds.size.width - [self widthPadding];
CGFloat textHeight = self.bounds.size.height - [self heightPadding];
if (self.contentSize.width <= textWidth && self.contentSize.height <= textHeight) {
CGPoint offset = CGPointMake(-self.contentInset.left, -self.contentInset.top);
if (@available(iOS 11.0, *)) {
offset = CGPointMake(-self.adjustedContentInset.left, -self.adjustedContentInset.top);
}
if (CGPointEqualToPoint(self.contentOffset, offset) == NO) {
self.contentOffset = offset;
}
}
}
- (CGSize)intrinsicContentSize
{
if (self.attributedText.length == 0) {
return CGSizeMake(UIViewNoIntrinsicMetric, UIViewNoIntrinsicMetric);
}
CGRect rect = [self.attributedText boundingRectWithSize:CGSizeMake(self.bounds.size.width - [self widthPadding], CGFLOAT_MAX)
options:NSStringDrawingUsesLineFragmentOrigin
context:nil];
return CGSizeMake(ceil(rect.size.width + [self widthPadding]),
ceil(rect.size.height + [self heightPadding]));
}
1st
string _myProperty { get; set; }
This is called an Auto Property in the .NET world. It's just syntactic sugar for #2.
2nd
string _myProperty;
public string myProperty
{
get { return _myProperty; }
set { _myProperty = value; }
}
This is the usual way to do it, which is required if you need to do any validation or extra code in your property. For example, in WPF if you need to fire a Property Changed Event. If you don't, just use the auto property, it's pretty much standard.
3
string _myProperty;
public string getMyProperty()
{
return this._myProperty;
}
public string setMyProperty(string value)
{
this._myProperty = value;
}
The this
keyword here is redundant. Not needed at all. These are just Methods that get and set as opposed to properties, like the Java way of doing things.
You shouldn't really do this but insert in a new record instead and update it that way.
But, if you really need to, you can do the following:
ALTER TABLE foo WITH NOCHECK CONSTRAINT ALL
)The simplest technique is to use NSString *uuid = [[NSProcessInfo processInfo] globallyUniqueString]
. See the NSProcessInfo class reference.
The whole thing to em is, that the size is relative to the base. So I would say you could keep the font sizes by altering the base.
Example: If you base is 16px, and p is .75em (which is 12px) you would have to raise the base to about 20px. In this case p would then equal about 15px which is the minimum I personally require for mobile phones.
server {
server_name example.com;
root /path/to/root;
location / {
# bla bla
}
location /demo {
alias /path/to/root/production/folder/here;
}
}
If you need to use try_files
inside /demo
you'll need to replace alias
with a root
and do a rewrite because of the bug explained here
Try using this attribute, for example for password min length:
[StringLength(100, ErrorMessage = "???????????? ????? ?????? 20 ????????", MinimumLength = User.PasswordMinLength)]
This exact same error is thrown if you try to late bind using reflection, if the assembly you are binding to gets strong-named or has its public-key token changed. The error is the same even though there is not actually any assembly found with the specified public key token.
You need to add the correct public key token (you can get it using sn -T on the dll) to resolve the error. Hope this helps.
Another good option, using charToRaw:
sum(charToRaw("abc.d.aa") == charToRaw('.'))
Use Apache CollectionUtils
:
CollectionUtils.find(myList, new Predicate() {
public boolean evaluate(Object o) {
return name.equals(((MyClass) o).getName());
}
}
.remove()
should remove all of them. I think the problem is that you're using an ID. There's only supposed to be one HTML element with a particular ID on the page, so jQuery is optimizing and not searching for them all. Use a class instead.
If these don't depend on the class or instance, then just make them a function.
As this would seem like the obvious solution. Unless of course you think it's going to need to be overwritten, subclassed, etc. If so, then the previous answers are the best bet. Fingers crossed I won't get marked down for merely offering an alternative solution that may or may not fit someone’s needs ;).
As the correct answer will depend on the use case of the code in question ;)
If the variable holding the dataframe is called df, then:
len(df.columns)
gives the number of columns.
And for those who want the number of rows:
len(df.index)
For a tuple containing the number of both rows and columns:
df.shape
Use the Path
class from System.IO
. It contains useful calls for manipulating file paths, including GetDirectoryName
which does what you want, returning the directory portion of the file path.
Usage is simple.
string directoryPath = Path.GetDirectoryName(filePath);
Graphical log viewers, while they might be very good for viewing log files, don't meet the need for a command line utility that can be incorporated into scripts (or batch files). Often such a simple and general-purpose command can be used as part of a specialized solution for a particular environment. Graphical methods don't lend themselves readily to such use.
After several months, the best answer I have is my simple tool. It is raw but functional.
What I want is something similar to this. The JSON data can provide a skeleton for the JSON schema. I have not implemented it yet, but it should be possible to give an existing JSON schema as basis, so that the existing JSON schema plus JSON data can generate an updated JSON schema. If no such schema is given as input, completely default values are taken.
This would be very useful in iterative development: the first time the tool is run, the JSON schema is dummy, but it can be refined automatically according to the evolution of the data.
So I found this page and didn't really like the solutions I found so I figured one out and am offering it up to all of you. For me, it only matters if the caps lock is on if I'm typing letters. This code solved the problem for me. Its quick and easy and gives you a capsIsOn variable to reference whenever you need it.
let capsIsOn=false;_x000D_
let capsChecked=false;_x000D_
_x000D_
let capsCheck=(e)=>{_x000D_
let letter=e.key;_x000D_
if(letter.length===1 && letter.match(/[A-Za-z]/)){_x000D_
if(letter!==letter.toLowerCase()){_x000D_
capsIsOn=true;_x000D_
console.log('caps is on');_x000D_
}else{_x000D_
console.log('caps is off');_x000D_
}_x000D_
capsChecked=true;_x000D_
window.removeEventListener("keyup",capsCheck);_x000D_
}else{_x000D_
console.log("not a letter, not capsCheck was performed");_x000D_
}_x000D_
_x000D_
}_x000D_
_x000D_
window.addEventListener("keyup",capsCheck);_x000D_
_x000D_
window.addEventListener("keyup",(e)=>{_x000D_
if(capsChecked && e.keyCode===20){_x000D_
capsIsOn=!capsIsOn;_x000D_
}_x000D_
});
_x000D_
Try to use this one. it will surely remove the file extension.
$filename = "image.jpg";
$e = explode(".", $filename);
foreach($e as $key=>$d)
{
if($d!=end($e)
{
$new_d[]=$d;
}
}
echo implode("-",$new_t); // result would be just the 'image'
For .NET Core 2.2 you can publish the application and set the target to be a self-contained executable.
In Visual Studio right click your console application project. Select publish to folder and set the profile settings like so:
You'll find your compiled code with the .exe in the publish folder.
I initialized a new SPring boot project in IntelliJIdea with Spring Boot dev tools, but in pom.xml I had only dependency
...
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
...
You need to have also artifact spring-boot-starter-web. Just add this dependency to pom.xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
lots of correct answers, but as I landed here to copy & paste a folder rename with history, I found that this
git mv <old name> <new name>
will move the old folder (itself) to nest within the new folder
while
git mv <old name>/ <new name>
(note the '/') will move the nested content from the old folder to the new folder
both commands didn't copy along the history of nested files. I eventually renamed each nested folder individually ?
git mv <old name>/<nest-folder> <new name>/<nest-folder>
From RFC 5321, section 2.3.11:
The standard mailbox naming convention is defined to be "local-part@domain"; contemporary usage permits a much broader set of applications than simple "user names". Consequently, and due to a long history of problems when intermediate hosts have attempted to optimize transport by modifying them, the local-part MUST be interpreted and assigned semantics only by the host specified in the domain part of the address.
So yes, the part before the "@" could be case-sensitive, since it is entirely under the control of the host system. In practice though, no widely used mail systems distinguish different addresses based on case.
The part after the @ sign however is the domain and according to RFC 1035, section 3.1,
"Name servers and resolvers must compare [domains] in a case-insensitive manner"
In short, you are safe to treat email addresses as case-insensitive.
Its really helped me to dynamically generate ids of showDetailItem
for the below code.
<af:forEach id="fe1" items="#{viewScope.bean.tranTypeList}" var="ttf" varStatus="ttfVs" >
<af:showDetailItem id ="divIDNo${ttfVs.count}" text="#{ttf.trandef}"......>
if you execute this line <af:outputText value="#{ttfVs}"/>
prints the below:
{index=3, count=4, last=false, first=false, end=8, step=1, begin=0}
Here's an example using http://www.geoplugin.net/json.gp
$ip = $_SERVER['REMOTE_ADDR'];
$details = json_decode(file_get_contents("http://www.geoplugin.net/json.gp?ip={$ip}"));
echo $details;
This validates dd/mm/yyy dates. Edit your jquery.validate.js and add these.
Reference(Regex): Regex to validate date format dd/mm/yyyy
dateBR: function( value, element ) {
return this.optional(element) || /^(?:(?:31(\/|-|\.)(?:0?[13578]|1[02]))\1|(?:(?:29|30)(\/|-|\.)(?:0?[1,3-9]|1[0-2])\2))(?:(?:1[6-9]|[2-9]\d)?\d{2})$|^(?:29(\/|-|\.)0?2\3(?:(?:(?:1[6-9]|[2-9]\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00))))$|^(?:0?[1-9]|1\d|2[0-8])(\/|-|\.)(?:(?:0?[1-9])|(?:1[0-2]))\4(?:(?:1[6-9]|[2-9]\d)?\d{2})$/.test(value);
}
messages: {
dateBR: "Invalid date."
}
classRuleSettings: {
dateBR: {dateBR: true}
}
Usage:
$( "#myForm" ).validate({
rules: {
field: {
dateBR: true
}
}
});
If your'e using Web Forms then Grid View can work very nicely for this
The code looks a little like this.
aspx page.
<asp:GridView ID="GridView1" runat="server" DataKeyNames="Name,Size,Quantity,Amount,Duration"></asp:GridView>
You can either input the data manually or use the source method in the code side
public class Room
{
public string Name
public double Size {get; set;}
public int Quantity {get; set;}
public double Amount {get; set;}
public int Duration {get; set;}
}
protected void Page_Load(object sender, EventArgs e)
{
if(!IsPostBack)//this is so you can keep any data you want for the list
{
List<Room> rooms=new List<Room>();
//then use the rooms.Add() to add the rooms you need.
GridView1.DataSource=rooms
GridView1.Databind()
}
}
Personally I like MVC4 the client side code ends up much lighter than Web Forms. It is similar to the above example with using a class but you use a view and Controller instead.
The View would look like this.
@model YourProject.Model.IEnumerable<Room>
<table>
<th>
<td>@Html.LabelFor(model => model.Name)</td>
<td>@Html.LabelFor(model => model.Size)</td>
<td>@Html.LabelFor(model => model.Quantity)</td>
<td>@Html.LabelFor(model => model.Amount)</td>
<td>@Html.LabelFor(model => model.Duration)</td>
</th>
foreach(item in model)
{
<tr>
<td>@model.Name</td>
<td>@model.Size</td>
<td>@model.Quantity</td>
<td>@model.Amount</td>
<td>@model.Duration</td>
</tr>
}
</table>
The controller might look something like this.
public ActionResult Index()
{
List<Room> rooms=new List<Room>();
//again add the items you need
return View(rooms);
}
Hope this helps :)
Semaphore allows multiple threads (up to a set number) to access a shared object. Monitors allow mutually exclusive access to a shared object.
I am not using a proxy...however I am using a script...Is there anyway around this. I am behind a company firewall
GAC (Global Assembly Cache) is where all shared .NET assembly reside.
UPDATE 4 May 2014
Old answer preserved here: https://gist.github.com/stefek99/b10ed037d2a4a323d638
1) Install express: npm install express
app.js
var express = require('express');
var app = express();
app.get('/endpoint', function(request, response) {
var id = request.query.id;
response.end("I have received the ID: " + id);
});
app.listen(3000);
console.log("node express app started at http://localhost:3000");
2) Run the app: node app.js
3) Visit in the browser: http://localhost:3000/endpoint?id=something
I have received the ID: something
(many things have changed since my answer and I believe it is worth keeping things up to date)
Try using:
selenium.select("id=items","label=engineering")
or
selenium.select("id=items","index=3")
Something missing from gipinani's answer
@Scheduled(cron = "0 1 1,13 * * ?", zone = "CST")
This will execute at 1.01 and 13.01. It can be used when you need to run the job without a pattern multiple times a day.
And the zone attribute is very useful, when you do deployments in remote servers. This was introduced with spring 4.
It's nice to have something to distinguish private vs. public variables, but I don't like '_' in general coding. If I can help it in new code, I avoid their use.
As early as possible in your application, require and configure dotenv.
require('dotenv').config()
We can use XOR operation which is safer than summation because in programming languages if the given input is large it may overflow and may give wrong answer.
Before going to the solution, know that A xor A = 0
. So if we XOR two identical numbers the value is 0.
Now, XORing [1..n] with the elements present in the array cancels the identical numbers. So at the end we will get the missing number.
// Assuming that the array contains 99 distinct integers between 1..99
// and empty slot value is zero
int XOR = 0;
for(int i=0; i<100; i++) {
if (ARRAY[i] != 0) // remove this condition keeping the body if no zero slot
XOR ^= ARRAY[i];
XOR ^= (i + 1);
}
return XOR;
//return XOR ^ ARRAY.length + 1; if your array doesn't have empty zero slot.
I had similar problems and to my surprise what I found that one of my developer had saved web.config in the same folder/solution as web123.config and by mistake both of these files were uploaded.
As soon as I deleted the web123.config file, this error disappeared and ajax framework was loading correctly. even though I have
<compilation debug="true">
In my case I also have following segment. My project is using framework 3.5
<httpHandlers>
<remove verb="*" path="*.asmx"/>
<add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
<add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false"/>
</httpHandlers>
<httpModules>
<add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
</httpModules>
</system.web>
ProcessStartInfo startInfo = new ProcessStartInfo(string.Concat(cPath, "\\", "HHTCtrlp.exe"));
startInfo.Arguments =cParams;
startInfo.UseShellExecute = false;
System.Diagnostics.Process.Start(startInfo);
Include language file source in your head script of the HTML body.
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.1/i18n/jquery-ui-i18n.min.js"></script>
Example on JSFiddle
I know I am quite late to answer this but I have come up with a different answer:
val rdd = sc.textFile("/home/training/mydata/file.txt")
val text = rdd.map(lines=lines.split(",")).map(arrays=>(ararys(0),arrays(1))).toDF("id","name").show
I find attributes to be cleaner to use than manually adding them via code. Here is a simple example.
[RoutePrefix("api/example")]
public class ExampleController : ApiController
{
[HttpGet]
[Route("get1/{param1}")] // /api/example/get1/1?param2=4
public IHttpActionResult Get(int param1, int param2)
{
Object example = null;
return Ok(example);
}
}
You also need this in your webapiconfig
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
config.Routes.MapHttpRoute(
name: "ActionApi",
routeTemplate: "api/{controller}/{action}/{id}",
defaults: new { id = RouteParameter.Optional }
);
Some Good Links http://www.asp.net/web-api/overview/getting-started-with-aspnet-web-api/tutorial-your-first-web-api This one explains routing better. http://www.asp.net/web-api/overview/web-api-routing-and-actions/routing-in-aspnet-web-api
I got the same cryptic error message from Rails 4.1, Ruby 2.3.3 in a recent project, stacktrace originating in layout application.html.haml
After a wild goose chase, the culprit was a UTF-8 character which recently had been added to the footer of all pages. For some weird reason the error would only show up intermittently.
Replacing the UTF-8 character with the corresponding HTML escape sequence &#xHHHH;
solved the issue.
I hope this saves other people some time in the future..
Note that as of this commit in June 2015 (Jackson 2.6.2 and above) you can now simply write:
public enum Event {
@JsonProperty("forgot password")
FORGOT_PASSWORD;
}
The behavior is documented here: https://fasterxml.github.io/jackson-annotations/javadoc/2.11/com/fasterxml/jackson/annotation/JsonProperty.html
Starting with Jackson 2.6 this annotation may also be used to change serialization of Enum like so:
public enum MyEnum { @JsonProperty("theFirstValue") THE_FIRST_VALUE, @JsonProperty("another_value") ANOTHER_VALUE; }
as an alternative to using JsonValue annotation.
You have to Import the Scanner and Timer Package Properly using the java.util classes.
import java.util.Scanner;
import java.util.Timer;
With Postgres, you may use
select * from users where active
or
select * from users where active = 't'
If you want to use integer value, you have to consider it as a string. You can't use integer value.
select * from users where active = 1 -- Does not work
select * from users where active = '1' -- Works
The best way to go to the last line of the file is with G
. This will move the cursor to the last line of the file.
The best way to go to the last column in the line is with $
. This will move the cursor to the last column of the current line.
So just by doing G$
you get to the end of the file and the last line.
And if you want to enter insert mode at the end of the file then you just do GA
. By doing this you go to the last line of the file, and enter insert mode by appending to the last column. :)
Just to save you too much typos:
foreach($group_membership as $username){
$username->items = array(additional array to add);
}
print_r($group_membership);
Swift 5 extension:
extension UIImageView{
func setImage(_ image: UIImage?, animated: Bool = true) {
let duration = animated ? 0.3 : 0.0
UIView.transition(with: self, duration: duration, options: .transitionCrossDissolve, animations: {
self.image = image
}, completion: nil)
}
}
Best use magic set/get methods with predefined custom set/get Methods as in example below. This way you can combine best of two worlds. In terms of speed I agree that they are a bit slower but can you even feel the difference. Example below also validate the data array against predefined setters.
"The magic methods are not substitutes for getters and setters. They just allow you to handle method calls or property access that would otherwise result in an error."
This is why we should use both.
CLASS ITEM EXAMPLE
/*
* Item class
*/
class Item{
private $data = array();
function __construct($options=""){ //set default to none
$this->setNewDataClass($options); //calling function
}
private function setNewDataClass($options){
foreach ($options as $key => $value) {
$method = 'set'.ucfirst($key); //capitalize first letter of the key to preserve camel case convention naming
if(is_callable(array($this, $method))){ //use seters setMethod() to set value for this data[key];
$this->$method($value); //execute the setters function
}else{
$this->data[$key] = $value; //create new set data[key] = value without seeters;
}
}
}
private function setNameOfTheItem($value){ // no filter
$this->data['name'] = strtoupper($value); //assign the value
return $this->data['name']; // return the value - optional
}
private function setWeight($value){ //use some kind of filter
if($value >= "100"){
$value = "this item is too heavy - sorry - exceeded weight of maximum 99 kg [setters filter]";
}
$this->data['weight'] = strtoupper($value); //asign the value
return $this->data['weight']; // return the value - optional
}
function __set($key, $value){
$method = 'set'.ucfirst($key); //capitalize first letter of the key to preserv camell case convention naming
if(is_callable(array($this, $method))){ //use seters setMethod() to set value for this data[key];
$this->$method($value); //execute the seeter function
}else{
$this->data[$key] = $value; //create new set data[key] = value without seeters;
}
}
function __get($key){
return $this->data[$key];
}
function dump(){
var_dump($this);
}
}
INDEX.PHP
$data = array(
'nameOfTheItem' => 'tv',
'weight' => '1000',
'size' => '10x20x30'
);
$item = new Item($data);
$item->dump();
$item->somethingThatDoNotExists = 0; // this key (key, value) will trigger magic function __set() without any control or check of the input,
$item->weight = 99; // this key will trigger predefined setter function of a class - setWeight($value) - value is valid,
$item->dump();
$item->weight = 111; // this key will trigger predefined setter function of a class - setWeight($value) - value invalid - will generate warning.
$item->dump(); // display object info
OUTPUT
object(Item)[1]
private 'data' =>
array (size=3)
'name' => string 'TV' (length=2)
'weight' => string 'THIS ITEM IS TOO HEAVY - SORRY - EXIDED WEIGHT OF MAXIMUM 99 KG [SETTERS FILTER]' (length=80)
'size' => string '10x20x30' (length=8)
object(Item)[1]
private 'data' =>
array (size=4)
'name' => string 'TV' (length=2)
'weight' => string '99' (length=2)
'size' => string '10x20x30' (length=8)
'somethingThatDoNotExists' => int 0
object(Item)[1]
private 'data' =>
array (size=4)
'name' => string 'TV' (length=2)
'weight' => string 'THIS ITEM IS TOO HEAVY - SORRY - EXIDED WEIGHT OF MAXIMUM 99 KG [SETTERS FILTER]' (length=80)
'size' => string '10x20x30' (length=8)
'somethingThatDoNotExists' => int 0
If you have InteliJ Idea Community 2018.2 the steps are as fallows:
Restart your IDE and try it.
I know what you're going to say, the guys before me wrote the same thing. But I got confused using the steps above this post, and I wanted to write a dumb down version for people who have the latest version of the IDE.
You can use the Java UUID class to store these values, instead of byte arrays:
UUID
public UUID(long mostSigBits,
long leastSigBits)
Constructs a new UUID using the specified data. mostSigBits is used for the most significant 64 bits of the UUID and leastSigBits becomes the least significant 64 bits of the UUID.
I would like to propose a version, which seems to be more robust, since I ran into a lot of problems using quantile()
in the breaks option cut()
on my dataset.
I am using the ntile
function of plyr
, but it also works with ecdf
as input.
temp[, `:=`(quartile = .bincode(x = ntile(value, 100), breaks = seq(0,100,25), right = TRUE, include.lowest = TRUE)
decile = .bincode(x = ntile(value, 100), breaks = seq(0,100,10), right = TRUE, include.lowest = TRUE)
)]
temp[, `:=`(quartile = .bincode(x = ecdf(value)(value), breaks = seq(0,1,0.25), right = TRUE, include.lowest = TRUE)
decile = .bincode(x = ecdf(value)(value), breaks = seq(0,1,0.1), right = TRUE, include.lowest = TRUE)
)]
Is that correct?
Based on Daniel Krizian's comment, you can also use the pretty_breaks
function from the scales
library, which is imported automatically:
ggplot(dat, aes(x,y)) + geom_point() +
scale_x_continuous(breaks = scales::pretty_breaks(n = 10)) +
scale_y_continuous(breaks = scales::pretty_breaks(n = 10))
All you have to do is insert the number of ticks wanted for n
.
A slightly less useful solution (since you have to specify the data variable again), you can use the built-in pretty
function:
ggplot(dat, aes(x,y)) + geom_point() +
scale_x_continuous(breaks = pretty(dat$x, n = 10)) +
scale_y_continuous(breaks = pretty(dat$y, n = 10))
string.Join("", (from i in arr select i.ToString()).ToArray())
In the .NET 4.0 the string.Join
can use an IEnumerable<string>
directly:
string.Join("", from i in arr select i.ToString())
Tims answer seems to me as misleading. Especially when urllib2 does not return expected code. For example this Error will be fatal (believe or not - it is not uncommon one when downloading urls):
AttributeError: 'URLError' object has no attribute 'code'
Fast, but maybe not the best solution would be code using nested try/except block:
import urllib2
try:
urllib2.urlopen("some url")
except urllib2.HTTPError, err:
try:
if err.code == 404:
# Handle the error
else:
raise
except:
...
More information to the topic of nested try/except blocks Are nested try/except blocks in python a good programming practice?
You can use System.setOut() at the start of your program to redirect all output via System.out
to your own PrintStream
.
Here is what I do.
Define a variable to help you out:
define dir=C:\MySYSTEM\PTR190\Tests\Test1
@&dir\myTest1.sql
You can't cd
in SQL*Plus (you can cd
using the host command, but since it is a child process, the setting won't persist in your parent process).
Unfortunately @BrianFreud's answer doesn't fit my needs, I had a little different need, and I know that is not the answer for @BrianFreud's question, but I am leaving it here because a lot of persons got here with my same need. I needed something like 'How to get a file or blob from an URL?', and the current correct answer does not fit my needs because its not cross-domain.
I have a website that consumes images from an Amazon S3/Azure Storage, and there I store objects named with uniqueidentifiers:
sample: http://****.blob.core.windows.net/systemimages/bf142dc9-0185-4aee-a3f4-1e5e95a09bcf
Some of this images should be download from our system interface. To avoid passing this traffic through my HTTP server, since this objects does not require any security to be accessed (except by domain filtering), I decided to make a direct request on user's browser and use local processing to give the file a real name and extension.
To accomplish that I have used this great article from Henry Algus: http://www.henryalgus.com/reading-binary-files-using-jquery-ajax/
1. First step: Add binary support to jquery
/**
*
* jquery.binarytransport.js
*
* @description. jQuery ajax transport for making binary data type requests.
* @version 1.0
* @author Henry Algus <[email protected]>
*
*/
// use this transport for "binary" data type
$.ajaxTransport("+binary", function (options, originalOptions, jqXHR) {
// check for conditions and support for blob / arraybuffer response type
if (window.FormData && ((options.dataType && (options.dataType == 'binary')) || (options.data && ((window.ArrayBuffer && options.data instanceof ArrayBuffer) || (window.Blob && options.data instanceof Blob))))) {
return {
// create new XMLHttpRequest
send: function (headers, callback) {
// setup all variables
var xhr = new XMLHttpRequest(),
url = options.url,
type = options.type,
async = options.async || true,
// blob or arraybuffer. Default is blob
dataType = options.responseType || "blob",
data = options.data || null,
username = options.username || null,
password = options.password || null;
xhr.addEventListener('load', function () {
var data = {};
data[options.dataType] = xhr.response;
// make callback and send data
callback(xhr.status, xhr.statusText, data, xhr.getAllResponseHeaders());
});
xhr.open(type, url, async, username, password);
// setup custom headers
for (var i in headers) {
xhr.setRequestHeader(i, headers[i]);
}
xhr.responseType = dataType;
xhr.send(data);
},
abort: function () {
jqXHR.abort();
}
};
}
});
2. Second step: Make a request using this transport type.
function downloadArt(url)
{
$.ajax(url, {
dataType: "binary",
processData: false
}).done(function (data) {
// just my logic to name/create files
var filename = url.substr(url.lastIndexOf('/') + 1) + '.png';
var blob = new Blob([data], { type: 'image/png' });
saveAs(blob, filename);
});
}
Now you can use the Blob created as you want to, in my case I want to save it to disk.
3. Optional: Save file on user's computer using FileSaver
I have used FileSaver.js to save to disk the downloaded file, if you need to accomplish that, please use this javascript library:
https://github.com/eligrey/FileSaver.js/
I expect this to help others with more specific needs.
I got this error when I used ViewTreeObserver inside onDraw()
function.
@Override
protected void onDraw(Canvas canvas) {
// super.onDraw(canvas);
ViewTreeObserver vto = mTextView.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
// some animation
}
});
}
You probably have to add your public key to github. https://help.github.com/articles/generating-ssh-keys
Check this thread: GitHub: Permission denied (publickey). fatal: The remote end hung up unexpectedly
They are called the ternary operator since they are the only one in Java.
The difference to the if...else construct is, that they return something, and this something can be anything:
int k = a > b ? 7 : 8;
String s = (foobar.isEmpty ()) ? "empty" : foobar.toString ();
In older versions of jquery you'll have to do it the "javascript way" using settimeout
setTimeout( function(){$('div').hide();} , 4000);
or
setTimeout( "$('div').hide();", 4000);
Recently with jquery 1.4 this solution has been added:
$("div").delay(4000).hide();
Of course replace "div" by the correct element using a valid jquery selector and call the function when the document is ready.
You can do it like that but storing a DataSet object in Session is not very efficient. If you have a web app with lots of users it will clog your server memory really fast.
If you really must do it like that I suggest removing it from the session as soon as you don't need the DataSet.
var=$((count7 + count1))
Arithmetic in bash uses $((...))
syntax.
You do not need to $
symbol within the $(( ))
@echo off
color 0a
set /p language=
if %language% == DE (
goto LGDE
) else (
if %language% == EN (
goto LGEN
) else (
echo N/A
)
:LGDE
(code)
:LGEN
(code)
Use the absolute value function ABS. The syntax is
ABS ( numeric_expression )
Just add
android:windowSoftInputMode="adjustResize"
in your AndroidManifest.xml where you declare this particular activity and this will adjust the layout resize option.
some source code below for layout design
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="20dp"
android:text="FaceBook"
android:textAppearance="?android:attr/textAppearanceLarge" />
<EditText
android:id="@+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/textView1"
android:layout_marginTop="30dp"
android:ems="10"
android:hint="username" >
<requestFocus />
</EditText>
<EditText
android:id="@+id/editText2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/editText1"
android:layout_marginTop="20dp"
android:ems="10"
android:hint="password" />
<Button
android:id="@+id/button1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/editText2"
android:layout_centerHorizontal="true"
android:layout_marginLeft="18dp"
android:layout_marginTop="20dp"
android:text="Log In" />
<TextView
android:id="@+id/textView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginTop="17dp"
android:gravity="center"
android:text="Sign up for facebook"
android:textAppearance="?android:attr/textAppearanceLarge" />
</RelativeLayout>
To do POST you'll need to have a form.
<form action="employee.action" method="post">
<input type="submit" value="Employee1" />
</form>
There are some ways to post data with hyperlinks, but you'll need some javascript, and a form.
Some tricks: Make a link use POST instead of GET and How do you post data with a link
Edit: to load response on a frame you can target your form to your frame:
<form action="employee.action" method="post" target="myFrame">
There is a more efficient way of doing this in Windows 7. SETX is installed by default and supports connecting to other systems.
To modify a remote system's global environment variables, you would use
setx /m /s HOSTNAME-GOES-HERE VariableNameGoesHere VariableValueGoesHere
This does not require restarting Windows Explorer.
They don't do the same thing. The first one works if obj is of type ClassA or of some subclass of ClassA. The second one will only match objects of type ClassA. The second one will be faster since it doesn't have to check the class hierarchy.
For those who want to know the reason, but don't want to read the article referenced in is vs typeof.
I had this issue and what I did and solved the problem was that I used AsEnumerable()
just before my Join clause.
here is my query:
List<AccountViewModel> selectedAccounts;
using (ctx = SmallContext.GetInstance()) {
var data = ctx.Transactions.
Include(x => x.Source).
Include(x => x.Relation).
AsEnumerable().
Join(selectedAccounts, x => x.Source.Id, y => y.Id, (x, y) => x).
GroupBy(x => new { Id = x.Relation.Id, Name = x.Relation.Name }).
ToList();
}
I was wondering why this issue happens, and now I think It is because after you make a query via LINQ, the result will be in memory and not loaded into objects, I don't know what that state is but they are in in some transitional state I think. Then when you use AsEnumerable()
or ToList()
, etc, you are placing them into physical memory objects and the issue is resolving.
here you go
var str = "['abc',['def','ghi'],'jkl']";
//'[\'abc\',[\'def\',\'ghi\'],\'jkl\']'
str.replace(/[\[\]']/g,'' );
//'abc,def,ghi,jkl'
I had a similar problem. None of the answers helped. In my case, I had two removed remote repositories showing up permanently.
My last idea was to remove all references to it by hand.
Let's say the repository is called “Repo”. I did:
find .git -name Repo
So, I deleted the corresponding files and directories from the .git folder (this folder could be found in your Rails app or on your computer https://stackoverflow.com/a/19538763/6638513).
Then I did:
grep Repo -r .git
This found some text files in which I removed the corresponding lines. Now, everything seems to be fine.
Usually, you should leave this job to git.
No, find() method is not a member of std::list
.
Instead, use std::find
from <algorithm>
std :: list < int > l;
std :: list < int > :: iterator pos;
l.push_back(1);
l.push_back(2);
l.push_back(3);
l.push_back(4);
l.push_back(5);
l.push_back(6);
int elem = 3;
pos = find(l.begin() , l.end() , elem);
if(pos != l.end() )
std :: cout << "Element is present. "<<std :: endl;
else
std :: cout << "Element is not present. "<<std :: endl;
jQuery Solution works for me.
$('.ui-button').addClass("ui-state-disabled");$('.ui-button').attr("aria-disabled",'true');$('.ui-button').prop('disabled', true);
As of Active Support and Rails 5.0.0.beta4 you can use one of both methods: String#upcase_first
or ActiveSupport::Inflector#upcase_first
.
"my API is great".upcase_first #=> "My API is great"
"?????".upcase_first #=> "?????"
"?????".upcase_first #=> "?????"
"NASA".upcase_first #=> "NASA"
"MHz".upcase_first #=> "MHz"
"sputnik".upcase_first #=> "Sputnik"
Check "Rails 5: New upcase_first Method" for more info.
I had the same issue, and had to satisfy all these requirements:
I finally solved it as follows:
webpack.config.js:
const path = require('path');
const MinifyPlugin = require("babel-minify-webpack-plugin");
module.exports = getConfiguration;
function getConfiguration(env) {
var outFile;
var plugins = [];
if (env === 'prod') {
outFile = 'mylib.dev';
plugins.push(new MinifyPlugin());
} else {
if (env !== 'dev') {
console.log('Unknown env ' + env + '. Defaults to dev');
}
outFile = 'mylib.dev.debug';
}
var entry = {};
entry[outFile] = './src/mylib-entry.js';
return {
entry: entry,
plugins: plugins,
output: {
filename: '[name].js',
path: __dirname
}
};
}
package.json:
{
"name": "mylib.js",
...
"scripts": {
"build": "npm-run-all webpack-prod webpack-dev",
"webpack-prod": "npx webpack --env=prod",
"webpack-dev": "npx webpack --env=dev"
},
"devDependencies": {
...
"babel-minify-webpack-plugin": "^0.2.0",
"npm-run-all": "^4.1.2",
"webpack": "^3.10.0"
}
}
Then I can build by (Don't forget to npm install
before):
npm run-script build
adb tcpip 5555
adb connect <DEVICE_IP_ADDRESS>:5555
adb devices
This code uses the event
object's .keyCode
property to check the characters typed into a given field. If the key pressed is a number, do nothing; otherwise, if it's a letter, alert "Error". If it is neither of these things, it returns false.
HTML:
<form>
<input type="text" id="txt" />
</form>
JS:
(function(a) {
a.onkeypress = function(e) {
if (e.keyCode >= 49 && e.keyCode <= 57) {}
else {
if (e.keyCode >= 97 && e.keyCode <= 122) {
alert('Error');
// return false;
} else return false;
}
};
})($('txt'));
function $(id) {
return document.getElementById(id);
}
For a result: http://jsfiddle.net/uUc22/
Mind you that the .keyCode
result for .onkeypress
, .onkeydown
, and .onkeyup
differ from each other.
You do cls.isFilled = True
. That overwrites the method called isFilled
and replaces it with the value True. That method is now gone and you can't call it anymore. So when you try to call it again you get an error, since it's not there anymore.
The solution is use a different name for the variable than you do for the method.