<input type="number" step="1" ...
By adding the step
attribute, you restrict input to integers.
Of course you should always validate on the server as well. Except under carefully controlled conditions, everything received from a client needs to be treated as suspect.
If you have an array of primitives, you can use the primitive collections available in Eclipse Collections.
LongList sourceLongList = LongLists.mutable.of(1L, 10L, 50L, 80L, 100L, 120L, 133L, 333L);
LongList targetLongList = sourceLongList.select(l -> l > 100);
If you can't change the sourceLongList from List
:
List<Long> sourceLongList = Arrays.asList(1L, 10L, 50L, 80L, 100L, 120L, 133L, 333L);
List<Long> targetLongList =
ListAdapter.adapt(sourceLongList).select(l -> l > 100, new ArrayList<>());
If you want to use LongStream
:
long[] sourceLongs = new long[]{1L, 10L, 50L, 80L, 100L, 120L, 133L, 333L};
LongList targetList =
LongStream.of(sourceLongs)
.filter(l -> l > 100)
.collect(LongArrayList::new, LongArrayList::add, LongArrayList::addAll);
Note: I am a contributor to Eclipse Collections.
Just to confirm answers here, my resolution was to copy the DLL that was not loading AND the ocx file that accompanied it to the system32 folder, that resolved my issue.
I used this way:-
var fs = require('fs');
var parse = require('csv-parse');
var csvData=[];
fs.createReadStream(req.file.path)
.pipe(parse({delimiter: ':'}))
.on('data', function(csvrow) {
console.log(csvrow);
//do something with csvrow
csvData.push(csvrow);
})
.on('end',function() {
//do something with csvData
console.log(csvData);
});
After installing packages from given answers, i still get some errors then i install following package and it works fine:
for specific version:
command for php 7.0
sudo apt-get install php7.0-xml
in some cases you also needs a package php7.0-common . install it same as above command.
For example,
package main
import (
"flag"
"fmt"
"os"
"strconv"
)
func main() {
flag.Parse()
s := flag.Arg(0)
// string to int
i, err := strconv.Atoi(s)
if err != nil {
// handle error
fmt.Println(err)
os.Exit(2)
}
fmt.Println(s, i)
}
There is an alternative which I would recommend:
Query query = em.createQuery("your query");
List<Element> elementList = query.getResultList();
return CollectionUtils.isEmpty(elementList ) ? null : elementList.get(0);
This safeguards against Null Pointer Exception, guarantees only 1 result is returned.
For me, the most useful way was
(window.innerWidth - document.getElementsByTagName('html')[0].clientWidth)
with vanilla JavaScript.
If an artefact is not resolvable Go in the ditectory of your .m2/repository and check that you DON'T have that kind of file :
build-helper-maven-plugin-1.10.pom.lastUpdated
If you don't have any artefact in the folder, just deleted it, and try again to re-import in IntelliJ.
the content of those file is like :
#NOTE: This is an Aether internal implementation file, its format can be changed without prior notice.
#Fri Mar 10 10:36:12 CET 2017
@default-central-https\://repo.maven.apache.org/maven2/.lastUpdated=1489138572430
https\://repo.maven.apache.org/maven2/.error=Could not transfer artifact org.codehaus.mojo\:build-helper-maven-plugin\:pom\:1.10 from/to central (https\://repo.maven.apache.org/maven2)\: connect timed out
Without the *.lastUpdated file, IntelliJ (or Eclipse by the way) is enable to reload what is missing.
You'll do it the same way you would apply a css selector. For instanse you can do
$("#mydiv > .myclass")
or
$("#mydiv .myclass")
The last one will match every myclass inside myDiv, including myclass inside myclass.
What you want is %.2f
, not 2%f
.
Also, you might want to replace your %d
with a %f
;)
#include <cstdio>
int main()
{
printf("When this number: %f is assigned to 2 dp, it will be: %.2f ", 94.9456, 94.9456);
return 0;
}
This will output:
When this number: 94.945600 is assigned to 2 dp, it will be: 94.95
See here for a full description of the printf formatting options: printf
Create unique constraint that two numbers together CANNOT together be repeated:
ALTER TABLE someTable
ADD UNIQUE (col1, col2)
From RFC 7034:
Wildcards or lists to declare multiple domains in one ALLOW-FROM statement are not permitted
So,
How do I set the X-Frame-Options: ALLOW-FROM to support more than a single domain?
You can't. As a workaround you can use different URLs for different partners. For each URL you can use it's own X-Frame-Options
value. For example:
partner iframe URL ALLOW-FROM
---------------------------------------
Facebook fb.yoursite.com facebook.com
VK.COM vk.yoursite.com vk.com
For yousite.com
you can just use X-Frame-Options: deny
.
BTW, for now Chrome (and all webkit-based browsers) does not support ALLOW-FROM
statements at all.
vars(obj)
returns the attributes of an object.
With dates (and times) many things become simpler if you use >= start AND < end
.
For example:
SELECT
user_id
FROM
user_logs
WHERE
login_date >= '2014-02-01'
AND login_date < '2014-03-01'
In this case you still need to calculate the start date of the month you need, but that should be straight forward in any number of ways.
The end date is also simplified; just add exactly one month. No messing about with 28th, 30th, 31st, etc.
This structure also has the advantage of being able to maintain use of indexes.
Many people may suggest a form such as the following, but they do not use indexes:
WHERE
DATEPART('year', login_date) = 2014
AND DATEPART('month', login_date) = 2
This involves calculating the conditions for every single row in the table (a scan) and not using index to find the range of rows that will match (a range-seek).
Using System.out.println() is bad practice (better use logging framework) -> you should not have many occurences in your code base. Using another method to simply shorten it does not seem a good option.
I needed to adapt @abe312's answer since there has been some changes with brew
lately.
I installed zulu7 and setup JAVA_HOME by running:
brew install --cask homebrew/cask-versions/zulu7
echo "export JAVA_HOME=/Library/Java/JavaVirtualMachines/zulu-7.jdk/Contents/Home" >> ~/.zshrc
I had to enter my password for installing zulu7. You may need to modify the last command if you are using a different shell.
Using with FILEPATH
option might work:
set(CMAKE_CXX_COMPILER:FILEPATH C:/MinGW/bin/gcc.exe)
Try Server.UrlEncode()
, or System.Web.HttpUtility.UrlEncode()
for instances when you don't have access to the Server
object. You can also use System.Uri.EscapeUriString()
to avoid adding a reference to the System.Web
assembly.
for (int i = 0; i < clbIncludes.Items.Count; i++)
if (clbIncludes.GetItemChecked(i))
// Do selected stuff
else
// Do unselected stuff
If the the check is in indeterminate state, this will still return true. You may want to replace
if (clbIncludes.GetItemChecked(i))
with
if (clbIncludes.GetItemCheckState(i) == CheckState.Checked)
if you want to only include actually checked items.
I've just checked and i have the same code as you and it works perferctly. The only difference is how i fill my List for the params :
I use a : ArrayList<BasicNameValuePair> params
and fill it this way :
params.add(new BasicNameValuePair("apikey", apikey);
I do not use any JSONObject to send params to the webservices.
Are you obliged to use the JSONObject ?
You can use
$('#li_from_date').appendDtpicker({
"dateOnly": true,
"autodateOnStart": false,
"dateFormat": "DD/MM/YYYY",
"closeOnSelected": true,
"futureonly": true
});
Just for completeness, this error can happen also in a different situation: when you declare an array in an outer scope, but declare another variable with the same name in an inner scope, shadowing the array. Then, when you try to index the array, you are actually accessing the variable in the inner scope, which might not even be an array, or it might be an array with fewer dimensions.
Example:
int a[10]; // a global scope
void f(int a) // a declared in local scope, overshadows a in global scope
{
printf("%d", a[0]); // you trying to access the array a, but actually addressing local argument a
}
The much longer example below combines some of the useful snippets above:
It could still do with a lot of work to make it better (better error-handling, general cleaning up), but it hopefully provides a good start.
Note that not all formatting is carried across because the new sheet uses its own theme's fonts and colours. I can't work out how to copy those across when pasting as values only.
Option Explicit Sub copyDataToNewFile() Application.ScreenUpdating = False ' Allow different ways of copying data: ' sheet = copy the entire sheet ' valuesWithFormatting = create a new sheet with the same name as the ' original, copy values from the cells only, then ' apply original formatting. Formatting is only as ' good as the Paste Special > Formats command - theme ' colours and fonts are not preserved. Dim copyMethod As String copyMethod = "valuesWithFormatting" Dim newFilename As String ' Name (+optionally path) of new file Dim themeTempFilePath As String ' To temporarily save the source file's theme Dim sourceWorkbook As Workbook ' This file Set sourceWorkbook = ThisWorkbook Dim newWorkbook As Workbook ' New file Dim sht As Worksheet ' To iterate through sheets later on. Dim sheetFriendlyName As String ' To store friendly sheet name Dim sheetCount As Long ' To avoid having to count multiple times ' Sheets to copy over, using internal code names as more reliable. Dim colSheetObjectsToCopy As New Collection colSheetObjectsToCopy.Add Sheet1 colSheetObjectsToCopy.Add Sheet2 ' Get filename of new file from user. Do newFilename = InputBox("Please Specify the name of your new workbook." & vbCr & vbCr & "Either enter a full path or just a filename, in which case the file will be saved in the same location (" & sourceWorkbook.Path & "). Don't use the name of a workbook that is already open, otherwise this script will break.", "New Copy") If newFilename = "" Then MsgBox "You must enter something.", vbExclamation, "Filename needed" Loop Until newFilename > "" ' If they didn't supply a path, assume same location as the source workbook. ' Not perfect - simply assumes a path has been supplied if a path separator ' exists somewhere. Could still be a badly-formed path. And, no check is done ' to see if the path actually exists. If InStr(1, newFilename, Application.PathSeparator, vbTextCompare) = 0 Then newFilename = sourceWorkbook.Path & Application.PathSeparator & newFilename End If ' Create a new workbook and save as the user requested. ' NB This fails if the filename is the same as a workbook that's ' already open - it should check for this. Set newWorkbook = Application.Workbooks.Add(xlWBATWorksheet) newWorkbook.SaveAs Filename:=newFilename, _ FileFormat:=xlWorkbookDefault ' Theme fonts and colours don't get copied over with most paste-special operations. ' This saves the theme of the source workbook and then loads it into the new workbook. ' BUG: Doesn't work! 'themeTempFilePath = Environ("temp") & Application.PathSeparator & sourceWorkbook.Name & " - Theme.xml" 'sourceWorkbook.Theme.ThemeFontScheme.Save themeTempFilePath 'sourceWorkbook.Theme.ThemeColorScheme.Save themeTempFilePath 'newWorkbook.Theme.ThemeFontScheme.Load themeTempFilePath 'newWorkbook.Theme.ThemeColorScheme.Load themeTempFilePath 'On Error Resume Next 'Kill themeTempFilePath ' kill = delete in VBA-speak 'On Error GoTo 0 ' getWorksheetNameFromObject returns null if the worksheet object doens't ' exist For Each sht In colSheetObjectsToCopy sheetFriendlyName = getWorksheetNameFromObject(sourceWorkbook, sht) Application.StatusBar = "VBL Copying " & sheetFriendlyName If Not IsNull(sheetFriendlyName) Then Select Case copyMethod Case "sheet" sourceWorkbook.Sheets(sheetFriendlyName).Copy _ After:=newWorkbook.Sheets(newWorkbook.Sheets.count) Case "valuesWithFormatting" newWorkbook.Sheets.Add After:=newWorkbook.Sheets(newWorkbook.Sheets.count), _ Type:=sourceWorkbook.Sheets(sheetFriendlyName).Type sheetCount = newWorkbook.Sheets.count newWorkbook.Sheets(sheetCount).Name = sheetFriendlyName ' Copy all cells in current source sheet to the clipboard. Could copy straight ' to the new workbook by specifying the Destination parameter but in this case ' we want to do a paste special as values only and the Copy method doens't allow that. sourceWorkbook.Sheets(sheetFriendlyName).Cells.Copy ' Destination:=newWorkbook.Sheets(newWorkbook.Sheets.Count).[A1] newWorkbook.Sheets(sheetCount).[A1].PasteSpecial Paste:=xlValues newWorkbook.Sheets(sheetCount).[A1].PasteSpecial Paste:=xlFormats newWorkbook.Sheets(sheetCount).Tab.Color = sourceWorkbook.Sheets(sheetFriendlyName).Tab.Color Application.CutCopyMode = False End Select End If Next sht Application.StatusBar = False Application.ScreenUpdating = True ActiveWorkbook.Save
Sometimes you can pass multiple strings separated by a space and it will be interpreted as \n
.
For example when using a shell script for multi-line notifcations:
#!/bin/bash
notify-send 'notification success' 'another line' 'time now '`date +"%s"`
NXJSON is full-featured yet very small (~400 lines of code) JSON parser, which has easy to use API:
const nx_json* json=nx_json_parse_utf8(code);
printf("hello=%s\n", nx_json_get(json, "hello")->text_value);
const nx_json* arr=nx_json_get(json, "my-array");
int i;
for (i=0; i<arr->length; i++) {
const nx_json* item=nx_json_item(arr, i);
printf("arr[%d]=(%d) %ld\n", i, (int)item->type, item->int_value);
}
nx_json_free(json);
I had the same issue (mysql 5.6 on mac) with 'can't rmdir..'-errors when dropping databases. Leaving an empty database directory not possible to get rid of. Thanks @Framework and @Beel for the solutions.
I first deleted the db directory from the Terminal in (/Applications/XAMPP/xamppfiles/var/mysql).
For further db drops, I also deleted the empty test file. In my case the file was called NOTEMPTY but still containing 0:
sudo ls -al test
total 0
drwxrwx--- 3 _mysql _mysql 102 Mar 26 16:50 .
drwxrwxr-x 18 _mysql _mysql 612 Apr 7 13:34 ..
-rw-rw---- 1 _mysql _mysql 0 Jun 26 2013 NOTEMPTY
Chmod first and then
sudo rm -rf test/NOTEMPTY
No problems dropping databases after that
you can define a global variable :
private Context globalContext = null;
and in the onCreate method, initialize it :
globalContext = this.getActivity();
And by that you can use the "globalContext" variable in all your fragment functions/methods.
Good luck.
There are some libraries around there:
Commons-BeanUtils: ConvertUtils -> Utility methods for converting String scalar values to objects of the specified Class, String arrays to arrays of the specified Class.
Commons-Lang: ArrayUtils -> Operations on arrays, primitive arrays (like int[]) and primitive wrapper arrays (like Integer[]).
Spring framework: Spring has an excellent support for PropertyEditors, that can also be used to transform Objects to/from Strings.
Dozer: Dozer is a powerful, yet simple Java Bean to Java Bean mapper that recursively copies data from one object to another. Typically, these Java Beans will be of different complex types.
ModelMapper: ModelMapper is an intelligent object mapping framework that automatically maps objects to each other. It uses a convention based approach to map objects while providing a simple refactoring safe API for handling specific use cases.
MapStruct: MapStruct is a compile-time code generator for bean mappings, resulting in fast (no usage of reflection or similar), dependency-less and type-safe mapping code at runtime.
Orika: Orika uses byte code generation to create fast mappers with minimal overhead.
Selma: Compile-time code-generator for mappings
JMapper: Bean mapper generation using Annotation, XML or API (seems dead, last updated 2 years ago)
Smooks: The Smooks JavaBean Cartridge allows you to create and populate Java objects from your message data (i.e. bind data to) (suggested by superfilin in comments). (No longer under active development)
Commons-Convert: Commons-Convert aims to provide a single library dedicated to the task of converting an object of one type to another. The first stage will focus on Object to String and String to Object conversions. (seems dead, last update 2010)
Transmorph: Transmorph is a free java library used to convert a Java object of one type into an object of another type (with another signature, possibly parameterized). (seems dead, last update 2013)
EZMorph: EZMorph is simple java library for transforming an Object to another Object. It supports transformations for primitives and Objects, for multidimensional arrays and transformations with DynaBeans (seems dead, last updated 2008)
Morph: Morph is a Java framework that eases the internal interoperability of an application. As information flows through an application, it undergoes multiple transformations. Morph provides a standard way to implement these transformations. (seems dead, last update 2008)
Lorentz: Lorentz is a generic object-to-object conversion framework. It provides a simple API to convert a Java objects of one type into an object of another type. (seems dead)
OTOM: With OTOM, you can copy any data from any object to any other object. The possibilities are endless. Welcome to "Autumn". (seems dead)
Basic Structure Here is an example of a JUnit output file, showing a skip and failed result, as well as a single passed result.
<?xml version="1.0" encoding="UTF-8"?>
<testsuites>
<testsuite name="JUnitXmlReporter" errors="0" tests="0" failures="0" time="0" timestamp="2013-05-24T10:23:58" />
<testsuite name="JUnitXmlReporter.constructor" errors="0" skipped="1" tests="3" failures="1" time="0.006" timestamp="2013-05-24T10:23:58">
<properties>
<property name="java.vendor" value="Sun Microsystems Inc." />
<property name="compiler.debug" value="on" />
<property name="project.jdk.classpath" value="jdk.classpath.1.6" />
</properties>
<testcase classname="JUnitXmlReporter.constructor" name="should default path to an empty string" time="0.006">
<failure message="test failure">Assertion failed</failure>
</testcase>
<testcase classname="JUnitXmlReporter.constructor" name="should default consolidate to true" time="0">
<skipped />
</testcase>
<testcase classname="JUnitXmlReporter.constructor" name="should default useDotNotation to true" time="0" />
</testsuite>
</testsuites>
Below is the documented structure of a typical JUnit XML report. Notice that a report can contain 1 or more test suite. Each test suite has a set of properties (recording environment information). Each test suite also contains 1 or more test case and each test case will either contain a skipped, failure or error node if the test did not pass. If the test case has passed, then it will not contain any nodes. For more details of which attributes are valid for each node please consult the following section "Schema".
<testsuites> => the aggregated result of all junit testfiles
<testsuite> => the output from a single TestSuite
<properties> => the defined properties at test execution
<property> => name/value pair for a single property
...
</properties>
<error></error> => optional information, in place of a test case - normally if the tests in the suite could not be found etc.
<testcase> => the results from executing a test method
<system-out> => data written to System.out during the test run
<system-err> => data written to System.err during the test run
<skipped/> => test was skipped
<failure> => test failed
<error> => test encountered an error
</testcase>
...
</testsuite>
...
</testsuites>
Right-click the table in DB2 Control Center and chose Generate DDL... That will give you everything you need and more.
Your code is fine, but the problem is inside the batch file.
You have to show the content of the bat file, your problem is in the paths inside the bat file.
Dim obj : Set obj = CreateObject("Scripting.FileSystemObject")
Dim outFile : Set outFile = obj.CreateTextFile("listfile.txt")
Dim inFile: Set inFile = obj.OpenTextFile("listfile.txt")
' read file
data = inFile.ReadAll
inFile.Close
' write file
outFile.write (data)
outFile.Close
For this particular relationship, you could use np.sign
:
>>> df["C"] = np.sign(df.A - df.B)
>>> df
A B C
a 2 2 0
b 3 1 1
c 1 3 -1
in php
echo '<a href="' . $folder_path . '">Link text</a>';
or
<a href="<?=$folder_path?>">Link text</a>;
or
<a href="<?php echo $folder_path ?>">Link text</a>;
If you want to take advantage of the 60FPS smoothness that the "transform" property offers, you can combine the two:
@keyframes changewidth {
from {
transform: scaleX(1);
}
to {
transform: scaleX(2);
}
}
div {
animation-duration: 0.1s;
animation-name: changewidth;
animation-iteration-count: infinite;
animation-direction: alternate;
}
More explanation on why transform offers smoother transitions here: https://medium.com/outsystems-experts/how-to-achieve-60-fps-animations-with-css3-db7b98610108
Just test if the array is empty.
$.getJSON(url,function(json){
if ( json.length == 0 ) {
console.log("NO DATA!")
}
});
This error can be caused by trying to end a response more than once. As other answers already mentioned, there are various methods that will end a response (like Response.End
, or Response.Redirect
). If you call more than one in a row, you'll get this error.
I came across this error when I tried to use Response.End
after using Response.TransmitFile
which seems to end the response too.
You mention you are using Pandas (in your title). If so, there is no need to use an external library, you can just use to_datetime
>>> pandas.to_datetime('today').normalize()
Timestamp('2015-10-14 00:00:00')
This will always return today's date at midnight, irrespective of the actual time, and can be directly used in pandas to do comparisons etc. Pandas always includes 00:00:00 in its datetimes.
Replacing today
with now
would give you the date in UTC instead of local time; note that in neither case is the tzinfo (timezone) added.
In pandas versions prior to 0.23.x, normalize
may not have been necessary to remove the non-midnight timestamp.
I think this image by Erwin Vandervalk (and the accompanying article) is the best explanation of MVC, MVP, and MVVM, their similarities, and their differences. The article does not show up in search engine results for queries on "MVC, MVP, and MVVM" because the title of the article does not contain the words "MVC" and "MVP"; but it is the best explanation, I think.
(The article also matches what Uncle Bob Martin said in his one of his talks: that MVC was originally designed for the small UI components, not for the architecture of the system)
This likely doesn't work with start
, as that starts a new window, but to answer your question:
If the command returns a error level you can check the following ways
By Specific Error Level
commandhere
if %errorlevel%==131 echo do something
By If Any Error
commandhere || echo what to do if error level ISN'T 0
By If No Error
commandhere && echo what to do if error level IS 0
If it does not return a error level but does give output, you can catch it in a variable and determine by the output, example (note the tokens and delims are just examples and would likely fail with any special characters)
By Parsing Full Output
for /f "tokens=* delims=" %%a in ('somecommand') do set output=%%a
if %output%==whateveritwouldsayinerror echo error
Or you could just look for a single phrase in the output like the word Error
By Checking For String
commandhere | find "Error" || echo There was no error!
commandhere | find "Error" && echo There was an error!
And you could even mix together (just remember to escape |
with ^|
if in a for
statement)
Hope this helps.
Based on official documentation https://developer.android.com/studio/command-line/variables.html you should change ANDROID_AVD_HOME environment var:
Emulator Environment Variables
By default, the emulator stores configuration files under $HOME/.android/ and AVD data under $HOME/.android/avd/. You can override the defaults by setting the following environment variables. The emulator -avd command searches the avd directory in the order of the values in $ANDROID_AVD_HOME, $ANDROID_SDK_HOME/.android/avd/, and $HOME/.android/avd/. For emulator environment variable help, type emulator -help-environment at the command line. For information about emulator command-line options, see Control the Emulator from the Command Line.
- ANDROID_EMULATOR_HOME: Sets the path to the user-specific emulator configuration directory. The default location is
$ANDROID_SDK_HOME/.android/.- ANDROID_AVD_HOME: Sets the path to the directory that contains all AVD-specific files, which mostly consist of very large disk images. The default location is $ANDROID_EMULATOR_HOME/avd/. You might want to specify a new location if the default location is low on disk space.
After change or set ANDROID_AVD_HOME you will have to move all content inside ~user/.android/avd/ to your new location and change path into ini file of each emulator, just replace it with your new path
Judging by the declaration and description of the startsWith
Java function, the "most straight forward way" to implement it in VBA would either be with Left
:
Public Function startsWith(str As String, prefix As String) As Boolean
startsWith = Left(str, Len(prefix)) = prefix
End Function
Or, if you want to have the offset parameter available, with Mid
:
Public Function startsWith(str As String, prefix As String, Optional toffset As Integer = 0) As Boolean
startsWith = Mid(str, toffset + 1, Len(prefix)) = prefix
End Function
The C standard does not allow void pointer arithmetic. However, GNU C is allowed by considering the size of void is 1
.
C11 standard §6.2.5
Paragraph - 19
The
void
type comprises an empty set of values; it is an incomplete object type that cannot be completed.
Following program is working fine in GCC compiler.
#include<stdio.h>
int main()
{
int arr[2] = {1, 2};
void *ptr = &arr;
ptr = ptr + sizeof(int);
printf("%d\n", *(int *)ptr);
return 0;
}
May be other compilers generate an error.
Still broken? Try uninstalling @types/moment
.
So, I removed @types/moment
package from the package.json
file and it worked using:
import * as moment from 'moment'
Newer versions of moment
don't require the @types/moment
package as types are already included.
Assembly code is discussed here.
"An assembly language is a low-level language for programming computers. It implements a symbolic representation of the numeric machine codes and other constants needed to program a particular CPU architecture."
Machine code is discussed here.
"Machine code or machine language is a system of instructions and data executed directly by a computer's central processing unit."
Basically, assembler code is the language and it is translated to object code (the native code that the CPU runs) by an assembler (analogous to a compiler).
Probably a silly suggestion compared to others:
if(!preg_match("/^[a-zA-Z0-9]$/",$string)){
$sortedString=preg_replace("/^[a-zA-Z0-9]+$/","",$string);
}
Here is the solution to copy files from Linux to Windows using SCP without password by ssh:
Install sshpass in Linux machine to skip password prompt
Script
sshpass -p 'xxxxxxx' scp /home/user1/*.* [email protected]:/d/test/
Details:
sshpass -p 'password' scp /source_path/*.* windowsusername@windowsMachine_ip:/destination_drive/subfolder/
imperative and declarative describe two opposing styles of programming. imperative is the traditional "step by step recipe" approach while declarative is more "this is what i want, now you work out how to do it".
these two approaches occur throughout programming - even with the same language and the same program. generally the declarative approach is considered preferable, because it frees the programmer from having to specify so many details, while also having less chance for bugs (if you describe the result you want, and some well-tested automatic process can work backwards from that to define the steps then you might hope that things are more reliable than having to specify each step by hand).
on the other hand, an imperative approach gives you more low level control - it's the "micromanager approach" to programming. and that can allow the programmer to exploit knowledge about the problem to give a more efficient answer. so it's not unusual for some parts of a program to be written in a more declarative style, but for the speed-critical parts to be more imperative.
as you might imagine, the language you use to write a program affects how declarative you can be - a language that has built-in "smarts" for working out what to do given a description of the result is going to allow a much more declarative approach than one where the programmer needs to first add that kind of intelligence with imperative code before being able to build a more declarative layer on top. so, for example, a language like prolog is considered very declarative because it has, built-in, a process that searches for answers.
so far, you'll notice that i haven't mentioned functional programming. that's because it's a term whose meaning isn't immediately related to the other two. at its most simple, functional programming means that you use functions. in particular, that you use a language that supports functions as "first class values" - that means that not only can you write functions, but you can write functions that write functions (that write functions that...), and pass functions to functions. in short - that functions are as flexible and common as things like strings and numbers.
it might seem odd, then, that functional, imperative and declarative are often mentioned together. the reason for this is a consequence of taking the idea of functional programming "to the extreme". a function, in it's purest sense, is something from maths - a kind of "black box" that takes some input and always gives the same output. and that kind of behaviour doesn't require storing changing variables. so if you design a programming language whose aim is to implement a very pure, mathematically influenced idea of functional programming, you end up rejecting, largely, the idea of values that can change (in a certain, limited, technical sense).
and if you do that - if you limit how variables can change - then almost by accident you end up forcing the programmer to write programs that are more declarative, because a large part of imperative programming is describing how variables change, and you can no longer do that! so it turns out that functional programming - particularly, programming in a functional language - tends to give more declarative code.
to summarise, then:
imperative and declarative are two opposing styles of programming (the same names are used for programming languages that encourage those styles)
functional programming is a style of programming where functions become very important and, as a consequence, changing values become less important. the limited ability to specify changes in values forces a more declarative style.
so "functional programming" is often described as "declarative".
Resurrecting this to post the DISTINCT FROM
option, which has been around since Postgres 8. The approach is similar to Brad Dre's answer. In your case, your select would be something like
SELECT *
FROM table_name
WHERE boolean_column IS DISTINCT FROM TRUE
You can use TEXT
like this as part of a concatenation
=TEXT(A1,"dd-mmm-yy") & " other string"
You are not leveraging async / await effectively because the request thread will be blocked while executing the synchronous method ReturnAllCountries()
The thread that is assigned to handle a request will be idly waiting while ReturnAllCountries()
does it's work.
If you can implement ReturnAllCountries()
to be asynchronous, then you would see scalability benefits. This is because the thread could be released back to the .NET thread pool to handle another request, while ReturnAllCountries()
is executing. This would allow your service to have higher throughput, by utilizing threads more efficiently.
Here all solutions are based on Class Component, but i guess most of the people who learned React recently (like me), at this time using functional Component. So here is the solution based on functional component.
Using useRef hooks of ReactJs and inputRef property of TextField.
import React, { useRef, Component } from 'react'
import { TextField, Button } from '@material-ui/core'
import SendIcon from '@material-ui/icons/Send'
export default function MultilineTextFields() {
const valueRef = useRef('') //creating a refernce for TextField Component
const sendValue = () => {
return console.log(valueRef.current.value) //on clicking button accesing current value of TextField and outputing it to console
}
return (
<form noValidate autoComplete='off'>
<div>
<TextField
id='outlined-textarea'
label='Content'
placeholder='Write your thoughts'
multiline
variant='outlined'
rows={20}
inputRef={valueRef} //connecting inputRef property of TextField to the valueRef
/>
<Button
variant='contained'
color='primary'
size='small'
endIcon={<SendIcon />}
onClick={sendValue}
>
Send
</Button>
</div>
</form>
)
}
Under a modern POSIX system (i.e. Linux), you can use the sigprocmask()
function.
#include <signal.h>
void block_signal(int signal_to_block /* i.e. SIGPIPE */ )
{
sigset_t set;
sigset_t old_state;
// get the current state
//
sigprocmask(SIG_BLOCK, NULL, &old_state);
// add signal_to_block to that existing state
//
set = old_state;
sigaddset(&set, signal_to_block);
// block that signal also
//
sigprocmask(SIG_BLOCK, &set, NULL);
// ... deal with old_state if required ...
}
If you want to restore the previous state later, make sure to save the old_state
somewhere safe. If you call that function multiple times, you need to either use a stack or only save the first or last old_state
... or maybe have a function which removes a specific blocked signal.
For more info read the man page.
We found out that all the standard ways of getting the total memory of the current process have some issues.
Runtime.getRuntime().totalMemory()
: returns JVM memory onlyActivityManager.getMemoryInfo()
, Process.getFreeMemory()
and anything else based on /proc/meminfo
- returns memory info about all the processes combined (e.g. android_util_Process.cpp)Debug.getNativeHeapAllocatedSize()
- uses mallinfo()
which return information about memory allocations performed by malloc()
and related functions only (see android_os_Debug.cpp)Debug.getMemoryInfo()
- does the job but it's too slow. It takes about 200ms on Nexus 6 for a single call. The performance overhead makes this function useless for us as we call it regularly and every call is quite noticeable (see android_os_Debug.cpp)ActivityManager.getProcessMemoryInfo(int[])
- calls Debug.getMemoryInfo()
internally (see ActivityManagerService.java)Finally, we ended up using the following code:
const long pageSize = 4 * 1024; //`sysconf(_SC_PAGESIZE)`
string stats = File.ReadAllText("/proc/self/statm");
var statsArr = stats.Split(new [] {' ', '\t', '\n'}, 3);
if( statsArr.Length < 2 )
throw new Exception("Parsing error of /proc/self/statm: " + stats);
return long.Parse(statsArr[1]) * pageSize;
It returns VmRSS metric. You can find more details about it here: one, two and three.
P.S. I noticed that the theme still has a lack of an actual and simple code snippet of how to estimate the private memory usage of the process if the performance isn't a critical requirement:
Debug.MemoryInfo memInfo = new Debug.MemoryInfo();
Debug.getMemoryInfo(memInfo);
long res = memInfo.getTotalPrivateDirty();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)
res += memInfo.getTotalPrivateClean();
return res * 1024L;
tag_story.splice(tag_story.indexOf(id_tag), 1);
To remove cached .idea/ directory.
e.g. git rm -r --cached .idea
When I use junit5, it's working. But every time I execute gradle --clean
, I get Class not found
error. Then I add this to build.gradle to resolve my problem and I can still use junit4:
test {
}
You can achive this with creating new array:
<?php
$array = array(1 => "Toyota", 2 => "Nissan", 3 => "BMW");
if (isset ($_POST['search'])) {
$maker = mysql_real_escape_string($_POST['Make']);
echo $array[$maker];
}
?>
A lot of responses on here are addressing the how but not the why. PHP $_SESSION key/value pairs are stored on the server. This differs from a cookie, which is stored on the browser. This is why you are able to access values in a cookie from both PHP and JavaScript. To make matters worse, AJAX requests from the browser do not include any of the cookies you have set for the website. So, you will have to make JavaScript pull the Session ID cookie and include it in every AJAX request for the server to be able to make heads or tails of it. On the bright side, PHP Sessions are designed to fail-over to a HTTP GET or POST variable if cookies are not sent along with the HTTP headers. I would look into some of the principles of RESTful web applications and use of of the design patterns that are common with those kinds of applications instead of trying to mangle with the session handler.
import networkx as nx
import matplotlib.pyplot as plt
G = nx.DiGraph()
G.add_node("A")
G.add_node("B")
G.add_node("C")
G.add_node("D")
G.add_node("E")
G.add_node("F")
G.add_node("G")
G.add_edge("A","B")
G.add_edge("B","C")
G.add_edge("C","E")
G.add_edge("C","F")
G.add_edge("D","E")
G.add_edge("F","G")
print(G.nodes())
print(G.edges())
pos = nx.spring_layout(G)
nx.draw_networkx_nodes(G, pos)
nx.draw_networkx_labels(G, pos)
nx.draw_networkx_edges(G, pos, edge_color='r', arrows = True)
plt.show()
i think you just have to assign the items from Author list to a new list to take that effect.
//assume oldAuthor is the old list
Author newAuthorList = (select x from oldAuthor where x.firstname!="Bob" select x).ToList();
oldAuthor = newAuthorList;
newAuthorList = null;
People mentioned string.find()
, string.index()
, and string.indexOf()
in the comments, and I summarize them here (according to the Python Documentation):
First of all there is not a string.indexOf()
method. The link posted by Deviljho shows this is a JavaScript function.
Second the string.find()
and string.index()
actually return the index of a substring. The only difference is how they handle the substring not found situation: string.find()
returns -1
while string.index()
raises an ValueError
.
Hi guys I found a new solution. Actually it is defined in another template so instead of defining TEMPLATE_DIRS yourself, put your directory path name at their:
For PHP7.1 install this
sudo apt-get install php7.1-zip
I used pip3 version 9.0.1
and was unable to install any packages recently via the commandpip3 install
.
Mac os version: EI Captain 10.11.5
.
python version: 3.5
I tried the command:
curl https://bootstrap.pypa.io/get-pip.py | python
It didn't work for me.
So I uninstalled the older pip and installed the newest version10.0.0
by entering this:
python3 -m pip uninstall pip setuptools
curl https://bootstrap.pypa.io/get-pip.py | python3
Now my problem was solved. If you are using the python2, you can substitute the python3 with python. I hope it also works for you.
By the way, for some rookies like me, you have to enter the code:
sudo -i
to gain the root right :) Good luck!
That is not an nginx
configuration file. It is part of an nginx
configuration file.
The nginx
configuration file (usually called nginx.conf
) will look like:
events {
...
}
http {
...
server {
...
}
}
The server
block is enclosed within an http
block.
Often the configuration is distributed across multiple files, by using the include
directives to pull in additional fragments (for example from the sites-enabled
directory).
Use sudo nginx -t
to test the complete configuration file, which starts at nginx.conf
and pulls in additional fragments using the include
directive. See this document for more.
I used this code to send mail by launching default mail app compose section directly.
Intent i = new Intent(Intent.ACTION_SENDTO);
i.setType("message/rfc822");
i.setData(Uri.parse("mailto:"));
i.putExtra(Intent.EXTRA_EMAIL , new String[]{"[email protected]"});
i.putExtra(Intent.EXTRA_SUBJECT, "Subject");
i.putExtra(Intent.EXTRA_TEXT , "body of email");
try {
startActivity(Intent.createChooser(i, "Send mail..."));
} catch (android.content.ActivityNotFoundException ex) {
Toast.makeText(this, "There are no email clients installed.", Toast.LENGTH_SHORT).show();
}
import org.apache.commons.io.filefilter.WildcardFileFilter;
.........
.........
File dir = new File(fileDir);
FileFilter fileFilter = new WildcardFileFilter("*.txt");
File[] files = dir.listFiles(fileFilter);
The code above works great for me
You can do this perfectly in pure Javascript, simple and no library required. Here it is my detailed answer for a similar topic: Disabling enter key for form
In short, here is the code:
<script type="text/javascript">
window.addEventListener('keydown',function(e){if(e.keyIdentifier=='U+000A'||e.keyIdentifier=='Enter'||e.keyCode==13){if(e.target.nodeName=='INPUT'&&e.target.type=='text'){e.preventDefault();return false;}}},true);
</script>
This code is to prevent "Enter" key for input type='text' only. (Because the visitor might need to hit enter across the page) If you want to disable "Enter" for other actions as well, you can add console.log(e); for your your test purposes, and hit F12 in chrome, go to "console" tab and hit "backspace" on the page and look inside it to see what values are returned, then you can target all of those parameters to further enhance the code above to suit your needs for "e.target.nodeName", "e.target.type" and many more...
To write inline styling use:
<div style="height: 100px;">
asdfashdjkfhaskjdf
</div>
Inline styling serves a purpose however, it is not recommended in most situations.
The more "proper" solution, would be to make a separate CSS sheet, include it in your HTML document, and then use either an ID or a class to reference your div.
if you have the file structure:
index.html
>>/css/
>>/css/styles.css
Then in your HTML document between <head>
and </head>
write:
<link href="css/styles.css" rel="stylesheet" />
Then, change your div structure to be:
<div id="someidname" class="someclassname">
asdfashdjkfhaskjdf
</div>
In css, you can reference your div from the ID or the CLASS.
To do so write:
.someclassname { height: 100px; }
OR
#someidname { height: 100px; }
Note that if you do both, the one that comes further down the file structure will be the one that actually works.
For example... If you have:
.someclassname { height: 100px; }
.someclassname { height: 150px; }
Then in this situation the height will be 150px.
EDIT:
To answer your secondary question from your edit, probably need overflow: hidden;
or overflow: visible;
. You could also do this:
<div class="span12">
<div style="height:100px;">
asdfashdjkfhaskjdf
</div>
</div>
Singleton classes in TypeScript are generally an anti-pattern. You can simply use namespaces instead.
class Singleton {
/* ... lots of singleton logic ... */
public someMethod() { ... }
}
// Using
var x = Singleton.getInstance();
x.someMethod();
export namespace Singleton {
export function someMethod() { ... }
}
// Usage
import { SingletonInstance } from "path/to/Singleton";
SingletonInstance.someMethod();
var x = SingletonInstance; // If you need to alias it for some reason
Escape the quotes with backslashes:
printf("She said \"time flies like an arrow, but fruit flies like a banana\".");
There are special escape characters that you can use in string literals, and these are denoted with a leading backslash.
No posters have mentioned the contraction of floating expressions yet (ISO C standard, 6.5p8 and 7.12.2). If the FP_CONTRACT
pragma is set to ON
, the compiler is allowed to regard an expression such as a*a*a*a*a*a
as a single operation, as if evaluated exactly with a single rounding. For instance, a compiler may replace it by an internal power function that is both faster and more accurate. This is particularly interesting as the behavior is partly controlled by the programmer directly in the source code, while compiler options provided by the end user may sometimes be used incorrectly.
The default state of the FP_CONTRACT
pragma is implementation-defined, so that a compiler is allowed to do such optimizations by default. Thus portable code that needs to strictly follow the IEEE 754 rules should explicitly set it to OFF
.
If a compiler doesn't support this pragma, it must be conservative by avoiding any such optimization, in case the developer has chosen to set it to OFF
.
GCC doesn't support this pragma, but with the default options, it assumes it to be ON
; thus for targets with a hardware FMA, if one wants to prevent the transformation a*b+c
to fma(a,b,c), one needs to provide an option such as -ffp-contract=off
(to explicitly set the pragma to OFF
) or -std=c99
(to tell GCC to conform to some C standard version, here C99, thus follow the above paragraph). In the past, the latter option was not preventing the transformation, meaning that GCC was not conforming on this point: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=37845
Try running you asyntask from the UI thread. I faced this issue when I wasn't doing the same!
@"I'm not sure if this is because of some other factors in my implementation, but I find that showAnnotations doesn't do as close a zoom/fit of the annotations as the manual implementation does, so I've stuck with the manual one. – Ted Avery Apr 17 at 0:35"
I had the same problem, but then I tried doing showAnnotations twice (like below), and for some reason, it worked.
[mapView showAnnotations:yourAnnotationArray animated:YES]; [mapView showAnnotations:yourAnnotationArray animated:YES];
Probably the simplest way is to use the InputBox
method of the Microsoft.VisualBasic.Interaction
class:
[void][Reflection.Assembly]::LoadWithPartialName('Microsoft.VisualBasic')
$title = 'Demographics'
$msg = 'Enter your demographics:'
$text = [Microsoft.VisualBasic.Interaction]::InputBox($msg, $title)
You can do simple check
if(!a) {
// do something when `a` is not undefined, null, ''.
}
Yes you can. You can even test it:
var i = 0;_x000D_
var timer = setInterval(function() {_x000D_
console.log(++i);_x000D_
if (i === 5) clearInterval(timer);_x000D_
console.log('post-interval'); //this will still run after clearing_x000D_
}, 200);
_x000D_
In this example, this timer clears when i
reaches 5.
I realize this is a rather old post, but it seems to still be reasonably active, and I thought I'd contribute a couple of points that have not yet been mentioned in other answers.
I will say that I agree with the benefits of dependency injection, but I do prefer to construct and manage the objects myself, using a pattern not unlike that outlined by Maxm007 in his answer. I have found two main problems with using 3rd party containers:
1) Having a 3rd party library manage the lifetime of your objects "automagically" can lend itself to unexpected results. We have found that especially in large projects, you can have vastly more copies of an object than you expect, and more than you would if you were manually managing the lifecycles. I'm sure this varies depending on the framework used, but the problem exists nonetheless. This can also be problematic if your object holds resources, data connections, etc., since the object can sometimes live longer than you expect. So inevitably, IoC containers tend to increase the resource utilization and memory footprint of an application.
2) IoC containers, in my opinion, are a form of "black box programming". I have found that in particular, our less experienced developers tend to abuse them. It allows the programmer to not have to think about how objects should relate to each other or how to decouple them, because it provides them with a mechanism in which they can simply grab any object they want out of thin air. Eg, there may be a good design reason that ObjectA should never know about ObjectB directly, but rather than creating a factory or bridge or service locator, an inexperienced programmer will simply say "no problem, I'll just grab ObjectB from the IoC container". This can actually lead to increased object coupling, which is what IoC is supposed to help prevent.
Try this Code
var app = angular.module('myapp', []);
app.controller('testController', function ($scope, $http) {
$scope.init = function(){
alert($scope.testInput);
};});
<body ng-app="myapp">_x000D_
<div ng-controller='testController' data-ng-init="testInput='value'; init();" class="col-sm-9 col-lg-9" >_x000D_
</div>_x000D_
</body>
_x000D_
You should try to:
Dock
property of picturebox to Fill
(if you want image to fill form)SizeMode
of picturebox to StretchImage
Finally:
private void button1_Click(object sender, EventArgs e)
{
OpenFileDialog dlg = new OpenFileDialog();
dlg.Title = "Open Image";
dlg.Filter = "bmp files (*.bmp)|*.bmp";
if (dlg.ShowDialog() == DialogResult.OK)
{
PictureBox1.Image = Image.FromFile(dlg.Filename);
}
dlg.Dispose();
}
Expanding Peter Grainger's answer I was able to use multi-stage build available since Docker 17.05. Official page states:
With multi-stage builds, you use multiple
FROM
statements in your Dockerfile. EachFROM
instruction can use a different base, and each of them begins a new stage of the build. You can selectively copy artifacts from one stage to another, leaving behind everything you don’t want in the final image.
Keeping this in mind here is my example of Dockerfile
including three build stages. It's meant to create a production image of client web application.
# Stage 1: get sources from npm and git over ssh
FROM node:carbon AS sources
ARG SSH_KEY
ARG SSH_KEY_PASSPHRASE
RUN mkdir -p /root/.ssh && \
chmod 0700 /root/.ssh && \
ssh-keyscan bitbucket.org > /root/.ssh/known_hosts && \
echo "${SSH_KEY}" > /root/.ssh/id_rsa && \
chmod 600 /root/.ssh/id_rsa
WORKDIR /app/
COPY package*.json yarn.lock /app/
RUN eval `ssh-agent -s` && \
printf "${SSH_KEY_PASSPHRASE}\n" | ssh-add $HOME/.ssh/id_rsa && \
yarn --pure-lockfile --mutex file --network-concurrency 1 && \
rm -rf /root/.ssh/
# Stage 2: build minified production code
FROM node:carbon AS production
WORKDIR /app/
COPY --from=sources /app/ /app/
COPY . /app/
RUN yarn build:prod
# Stage 3: include only built production files and host them with Node Express server
FROM node:carbon
WORKDIR /app/
RUN yarn add express
COPY --from=production /app/dist/ /app/dist/
COPY server.js /app/
EXPOSE 33330
CMD ["node", "server.js"]
.dockerignore
repeats contents of .gitignore
file (it prevents node_modules
and resulting dist
directories of the project from being copied):
.idea
dist
node_modules
*.log
Command example to build an image:
$ docker build -t ezze/geoport:0.6.0 \
--build-arg SSH_KEY="$(cat ~/.ssh/id_rsa)" \
--build-arg SSH_KEY_PASSPHRASE="my_super_secret" \
./
If your private SSH key doesn't have a passphrase just specify empty SSH_KEY_PASSPHRASE
argument.
This is how it works:
1). On the first stage only package.json
, yarn.lock
files and private SSH key are copied to the first intermediate image named sources
. In order to avoid further SSH key passphrase prompts it is automatically added to ssh-agent
. Finally yarn
command installs all required dependencies from NPM and clones private git repositories from Bitbucket over SSH.
2). The second stage builds and minifies source code of web application and places it in dist
directory of the next intermediate image named production
. Note that source code of installed node_modules
is copied from the image named sources
produced on the first stage by this line:
COPY --from=sources /app/ /app/
Probably it also could be the following line:
COPY --from=sources /app/node_modules/ /app/node_modules/
We have only node_modules
directory from the first intermediate image here, no SSH_KEY
and SSH_KEY_PASSPHRASE
arguments anymore. All the rest required for build is copied from our project directory.
3). On the third stage we reduce a size of the final image that will be tagged as ezze/geoport:0.6.0
by including only dist
directory from the second intermediate image named production
and installing Node Express for starting a web server.
Listing images gives an output like this:
REPOSITORY TAG IMAGE ID CREATED SIZE
ezze/geoport 0.6.0 8e8809c4e996 3 hours ago 717MB
<none> <none> 1f6518644324 3 hours ago 1.1GB
<none> <none> fa00f1182917 4 hours ago 1.63GB
node carbon b87c2ad8344d 4 weeks ago 676MB
where non-tagged images correpsond to the first and the second intermediate build stages.
If you run
$ docker history ezze/geoport:0.6.0 --no-trunc
you will not see any mentions of SSH_KEY
and SSH_KEY_PASSPHRASE
in the final image.
First things first :) reading books is an excellent approach to problem solving; it's the difference between band-aid fixes and long-term investments in solving problems. Never miss an opportunity to learn. :D
You might choose to interpret the 1
as a number, but environment variables don't care. They just pass around strings:
The argument envp is an array of character pointers to null-
terminated strings. These strings shall constitute the
environment for the new process image. The envp array is
terminated by a null pointer.
(From environ(3posix)
.)
You access environment variables in python using the os.environ
dictionary-like object:
>>> import os
>>> os.environ["HOME"]
'/home/sarnold'
>>> os.environ["PATH"]
'/home/sarnold/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games'
>>> os.environ["PATH"] = os.environ["PATH"] + ":/silly/"
>>> os.environ["PATH"]
'/home/sarnold/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/silly/'
In Visual Studio, you can't just open a .cpp
file and expect it to run. You must create a project first, or open the .cpp in some existing project.
In your case, there is no project, so there is no project to build.
Go to File --> New --> Project --> Visual C++ --> Win32 Console Application
. You can uncheck "create a directory for solution". On the next page, be sure to check "Empty project".
Then, You can add .cpp
files you created outside the Visual Studio by right clicking in the Solution explorer
on folder icon "Source" and Add->Existing Item.
Obviously You can create new .cpp this way too (Add --> New). The .cpp file will be created in your project directory.
Then you can press ctrl+F5 to compile without debugging and can see output on console window.
As suggested by Rodja, prior to 4.0 there isn't a direct way to center the text with the drawable. And indeed setting a padding_left value does move the drawable away from the border. Therefore my suggestion is that on runtime you calculate exactly how many pixels from the left border your drawable needs to be and then pass it using setPadding Your calculation may be something like
int paddingLeft = (button.getWidth() - drawableWidth - textWidth) / 2;
The width of your drawable's is fixed and you can look it up and you can also calculate or guess the text width.
Finally, you would need to multiple the padding value by the screen density, which you can do using DisplayMetrics
I finally got a very easy solution to this.
use these Support libraries in app level gradle,
compile 'com.android.support:appcompat-v7:26.0.2'
compile 'com.android.support:support-v4:26.0.2'
then create a directory named "font" inside the res folder
After that, reference that font from xml like this
<Button
android:id="@+id/btn_choose_employee"
android:layout_width="140dp"
android:layout_height="40dp"
android:layout_centerInParent="true"
android:background="@drawable/rounded_red_btn"
android:onClick="btnEmployeeClickedAction"
android:text="@string/searching_jobs"
android:textAllCaps="false"
android:textColor="@color/white"
android:fontFamily="@font/times_new_roman_test"
/>
In this example, times_new_roman_test is a font ttf file from that font directory
Yes, you can input multiple items from cin
, using exactly the syntax you describe. The result is essentially identical to:
cin >> a;
cin >> b;
cin >> c;
This is due to a technique called "operator chaining".
Each call to operator>>(istream&, T)
(where T
is some arbitrary type) returns a reference to its first argument. So cin >> a
returns cin
, which can be used as (cin>>a)>>b
and so forth.
Note that each call to operator>>(istream&, T)
first consumes all whitespace characters, then as many characters as is required to satisfy the input operation, up to (but not including) the first next whitespace character, invalid character, or EOF.
If s
is your string than you could do it this way:
Mid(s, index, 1)
Edit based on comment below question.
It seems that you need a bit different approach which should be easier. Try in this way:
Dim character As String 'Integer if for numbers
's = ActiveDocument.Content.Text - we don't need it
character = Activedocument.Characters(index)
As of PostgreSQL 9.3, you can use the command pg_isready
to determine the connection status of a PostgreSQL server.
From the docs:
pg_isready returns 0 to the shell if the server is accepting connections normally, 1 if the server is rejecting connections (for example during startup), 2 if there was no response to the connection attempt, and 3 if no attempt was made (for example due to invalid parameters).
If you want to use find
, like I would for any validation you want to do on the client side.
find
returns an ARRAY of objects
findOne
returns only an object
Adding user = user[0]
made the save method work for me.
Here is where you put it.
User.find({username: oldUsername}, function (err, user) {
user = user[0];
user.username = newUser.username;
user.password = newUser.password;
user.rights = newUser.rights;
user.save(function (err) {
if(err) {
console.error('ERROR!');
}
});
});
Amongst the other fixes, I had the error come up when I tried to do Product->Archive. Turns out I had this :
Objective-C Bridging Header
Debug (had the value)
Release (had the value)
Any architecture | Any SDK (this was blank - problem here!)
After setting it in that last line, it worked.
Could either be
div ul
{
width: [INSERT FIXED WIDTH]
margin: 0 auto;
}
or
div li
{
text-align: center;
}
depends on how it should look like (or combining those)
var timestamp = DateTime.Now.ToFileTime();
//output: 132260149842749745
This is an alternative way to individuate distinct transactions. It's not unix time, but windows filetime.
From the docs:
A Windows file time is a 64-bit value that represents the number of 100-
nanosecond intervals that have elapsed since 12:00 midnight, January 1, 1601
A.D. (C.E.) Coordinated Universal Time (UTC).
The one-to-many table relationship looks like this:
In a relational database system, a one-to-many table relationship associates two tables based on a Foreign Key
column in the child table referencing the Primary Key
of one record in the parent table.
In the table diagram above, the post_id
column in the post_comment
table has a Foreign Key
relationship with the post
table id Primary Key
column:
ALTER TABLE
post_comment
ADD CONSTRAINT
fk_post_comment_post_id
FOREIGN KEY (post_id) REFERENCES post
In JPA, the best way to map the one-to-many table relationship is to use the @ManyToOne
annotation.
In our case, the PostComment
child entity maps the post_id
Foreign Key column using the @ManyToOne
annotation:
@Entity(name = "PostComment")
@Table(name = "post_comment")
public class PostComment {
@Id
@GeneratedValue
private Long id;
private String review;
@ManyToOne(fetch = FetchType.LAZY)
private Post post;
}
@OneToMany
annotationJust because you have the option of using the @OneToMany
annotation, it doesn't mean it should be the default option for all the one-to-many database relationships.
The problem with JPA collections is that we can only use them when their element count is rather low.
The best way to map a @OneToMany
association is to rely on the @ManyToOne
side to propagate all entity state changes:
@Entity(name = "Post")
@Table(name = "post")
public class Post {
@Id
@GeneratedValue
private Long id;
private String title;
@OneToMany(
mappedBy = "post",
cascade = CascadeType.ALL,
orphanRemoval = true
)
private List<PostComment> comments = new ArrayList<>();
//Constructors, getters and setters removed for brevity
public void addComment(PostComment comment) {
comments.add(comment);
comment.setPost(this);
}
public void removeComment(PostComment comment) {
comments.remove(comment);
comment.setPost(null);
}
}
The parent Post
entity features two utility methods (e.g. addComment
and removeComment
) which are used to synchronize both sides of the bidirectional association.
You should provide these methods whenever you are working with a bidirectional association as, otherwise, you risk very subtle state propagation issues.
The unidirectional @OneToMany
association is to be avoided as it's less efficient than using @ManyToOne
or the bidirectional @OneToMany
association.
The one-to-one table relationship looks as follows:
In a relational database system, a one-to-one table relationship links two tables based on a Primary Key
column in the child which is also a Foreign Key
referencing the Primary Key
of the parent table row.
Therefore, we can say that the child table shares the Primary Key
with the parent table.
In the table diagram above, the id
column in the post_details
table has also a Foreign Key
relationship with the post
table id
Primary Key
column:
ALTER TABLE
post_details
ADD CONSTRAINT
fk_post_details_id
FOREIGN KEY (id) REFERENCES post
@OneToOne
with @MapsId
annotationsThe best way to map a @OneToOne
relationship is to use @MapsId
. This way, you don't even need a bidirectional association since you can always fetch the PostDetails
entity by using the Post
entity identifier.
The mapping looks like this:
@Entity(name = "PostDetails")
@Table(name = "post_details")
public class PostDetails {
@Id
private Long id;
@Column(name = "created_on")
private Date createdOn;
@Column(name = "created_by")
private String createdBy;
@OneToOne(fetch = FetchType.LAZY)
@MapsId
@JoinColumn(name = "id")
private Post post;
public PostDetails() {}
public PostDetails(String createdBy) {
createdOn = new Date();
this.createdBy = createdBy;
}
//Getters and setters omitted for brevity
}
This way, the id
property serves as both Primary Key and Foreign Key. You'll notice that the @Id
column no longer uses a @GeneratedValue
annotation since the identifier is populated with the identifier of the post
association.
The many-to-many table relationship looks as follows:
In a relational database system, a many-to-many table relationship links two parent tables via a child table which contains two Foreign Key
columns referencing the Primary Key
columns of the two parent tables.
In the table diagram above, the post_id
column in the post_tag
table has also a Foreign Key
relationship with the post
table id Primary Key
column:
ALTER TABLE
post_tag
ADD CONSTRAINT
fk_post_tag_post_id
FOREIGN KEY (post_id) REFERENCES post
And, the tag_id
column in the post_tag
table has a Foreign Key
relationship with the tag
table id Primary Key
column:
ALTER TABLE
post_tag
ADD CONSTRAINT
fk_post_tag_tag_id
FOREIGN KEY (tag_id) REFERENCES tag
@ManyToMany
mappingThis is how you can map the many-to-many
table relationship with JPA and Hibernate:
@Entity(name = "Post")
@Table(name = "post")
public class Post {
@Id
@GeneratedValue
private Long id;
private String title;
@ManyToMany(cascade = {
CascadeType.PERSIST,
CascadeType.MERGE
})
@JoinTable(name = "post_tag",
joinColumns = @JoinColumn(name = "post_id"),
inverseJoinColumns = @JoinColumn(name = "tag_id")
)
private Set<Tag> tags = new HashSet<>();
//Getters and setters ommitted for brevity
public void addTag(Tag tag) {
tags.add(tag);
tag.getPosts().add(this);
}
public void removeTag(Tag tag) {
tags.remove(tag);
tag.getPosts().remove(this);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof Post)) return false;
return id != null && id.equals(((Post) o).getId());
}
@Override
public int hashCode() {
return getClass().hashCode();
}
}
@Entity(name = "Tag")
@Table(name = "tag")
public class Tag {
@Id
@GeneratedValue
private Long id;
@NaturalId
private String name;
@ManyToMany(mappedBy = "tags")
private Set<Post> posts = new HashSet<>();
//Getters and setters ommitted for brevity
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Tag tag = (Tag) o;
return Objects.equals(name, tag.name);
}
@Override
public int hashCode() {
return Objects.hash(name);
}
}
tags
association in the Post
entity only defines the PERSIST
and MERGE
cascade types. The REMOVE
entity state transition doesn't make any sense for a @ManyToMany
JPA association since it could trigger a chain deletion that would ultimately wipe both sides of the association.Post
entity uses the entity identifier for equality since it lacks any unique business key. You can use the entity identifier for equality as long as you make sure that it stays consistent across all entity state transitions.Tag
entity has a unique business key which is marked with the Hibernate-specific @NaturalId
annotation. When that's the case, the unique business key is the best candidate for equality checks.mappedBy
attribute of the posts
association in the Tag
entity marks that, in this bidirectional relationship, the Post
entity owns the association. This is needed since only one side can own a relationship, and changes are only propagated to the database from this particular side.Set
is to be preferred, as using a List
with @ManyToMany
is less efficient.you can add AsEnumerable to your collection like the follow :
public IQueryable<Product> GetProducts(int categoryID)
{
return from p in db.Products.AsEnumerable()
where p.CategoryID== categoryID
select new Product { Name = p.Name};
}
If X
and beta
do not have the same shape as the second term in the rhs of your last line (i.e. nsample
), then you will get this type of error. To add an array to a tuple of arrays, they all must be the same shape.
I would recommend looking at the numpy broadcasting rules.
The upcoming change is for chinese, arabic domain names not URIs. The internationalised URIs are called IRIs and are defined in RFC 3987. However, having said that I'd recommend not doing this yourself but relying on an existing, tested library since there are lots of choices of URI encoding/decoding and what are considered safe by specification, versus what are safe by actual use (browsers).
For 2.7, try the following:
fh = logging.handlers.RotatingFileHandler(LOGFILE, maxBytes=(1048576*5), backupCount=7)
You can also get an updated version of the Eclipse's ADT plugin (based on an unreleased 24.2.0 version) that I managed to patch and compile at https://github.com/khaledev/ADT.
jQuery Version
JavaScript (modified from a script I found on someone's site - I just can't find the site again, so I can't give the person credit):
$(document).ready(function() {
$("#bookmarkme").click(function() {
if (window.sidebar) { // Mozilla Firefox Bookmark
window.sidebar.addPanel(location.href,document.title,"");
} else if(window.external) { // IE Favorite
window.external.AddFavorite(location.href,document.title); }
else if(window.opera && window.print) { // Opera Hotlist
this.title=document.title;
return true;
}
});
});
HTML:
<a id="bookmarkme" href="#" rel="sidebar" title="bookmark this page">Bookmark This Page</a>
IE will show an error if you don't run it off a server (it doesn't allow JavaScript bookmarks via JavaScript when viewing it as a file://...
).
require 'json/ext' # to use the C based extension instead of json/pure
puts {hash: 123}.to_json
the new version of ExcelPackage is here http://EPPlus.codeplex.com
I'm still fighting with the export to excel function since my application should export some data to excel-template 2007
this project seems fine to me, and the developer is very responsive to bugs and issues.
This is an excerpt from Structure and Interpretation of Computer Programs about tail recursion.
In contrasting iteration and recursion, we must be careful not to confuse the notion of a recursive process with the notion of a recursive procedure. When we describe a procedure as recursive, we are referring to the syntactic fact that the procedure definition refers (either directly or indirectly) to the procedure itself. But when we describe a process as following a pattern that is, say, linearly recursive, we are speaking about how the process evolves, not about the syntax of how a procedure is written. It may seem disturbing that we refer to a recursive procedure such as fact-iter as generating an iterative process. However, the process really is iterative: Its state is captured completely by its three state variables, and an interpreter need keep track of only three variables in order to execute the process.
One reason that the distinction between process and procedure may be confusing is that most implementations of common languages (including Ada, Pascal, and C) are designed in such a way that the interpretation of any recursive procedure consumes an amount of memory that grows with the number of procedure calls, even when the process described is, in principle, iterative. As a consequence, these languages can describe iterative processes only by resorting to special-purpose “looping constructs” such as do, repeat, until, for, and while. The implementation of Scheme does not share this defect. It will execute an iterative process in constant space, even if the iterative process is described by a recursive procedure. An implementation with this property is called tail-recursive. With a tail-recursive implementation, iteration can be expressed using the ordinary procedure call mechanism, so that special iteration constructs are useful only as syntactic sugar.
select
sum(a) as atotal,
sum(b) as btotal,
sum(c) as ctotal
from
yourtable t
where
t.id in (1, 2, 3)
<select ng-model="item.size.code">
<option ng-repeat="size in sizes" ng-attr-value="size.code">{{size.name}} </option>
</select>
You can use tf.convert_to_tensor()
:
import tensorflow as tf
import numpy as np
data = [[1,2,3],[4,5,6]]
data_np = np.asarray(data, np.float32)
data_tf = tf.convert_to_tensor(data_np, np.float32)
sess = tf.InteractiveSession()
print(data_tf.eval())
sess.close()
Here's a link to the documentation for this method:
https://www.tensorflow.org/api_docs/python/tf/convert_to_tensor
Replace the separator with TAB(\t) instead of comma(,). Then open the file in your editor (Notepad etc.), copy the content from there, then paste it in the Excel file.
Run your program with valgrind of linked to efence. That will tell you where the pointer is being dereferenced and most likely fix your problem if you fix all the errors they tell you about.
Another one simple method is there. You don't need to code more in CSS. Just including a java script and entering the div "id" inside the script you can get equal height of columns so that you can have the height fit to container. It works in major browsers.
Source Code:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<meta http-equiv="Content-Style-Type" content="text/css" />
<meta http-equiv="Content-Script-Type" content="text/javascript" />
<title></title>
<style type="text/css">
* {border:0; padding:0; margin:0;}/* Set everything to "zero" */
#container {
margin-left: auto;
margin-right: auto;
border: 1px solid black;
overflow: auto;
width: 800px;
}
#nav {
width: 19%;
border: 1px solid green;
float:left;
}
#content {
width: 79%;
border: 1px solid red;
float:right;
}
</style>
<script language="javascript">
var ddequalcolumns=new Object()
//Input IDs (id attr) of columns to equalize. Script will check if each corresponding column actually exists:
ddequalcolumns.columnswatch=["nav", "content"]
ddequalcolumns.setHeights=function(reset){
var tallest=0
var resetit=(typeof reset=="string")? true : false
for (var i=0; i<this.columnswatch.length; i++){
if (document.getElementById(this.columnswatch[i])!=null){
if (resetit)
document.getElementById(this.columnswatch[i]).style.height="auto"
if (document.getElementById(this.columnswatch[i]).offsetHeight>tallest)
tallest=document.getElementById(this.columnswatch[i]).offsetHeight
}
}
if (tallest>0){
for (var i=0; i<this.columnswatch.length; i++){
if (document.getElementById(this.columnswatch[i])!=null)
document.getElementById(this.columnswatch[i]).style.height=tallest+"px"
}
}
}
ddequalcolumns.resetHeights=function(){
this.setHeights("reset")
}
ddequalcolumns.dotask=function(target, functionref, tasktype){ //assign a function to execute to an event handler (ie: onunload)
var tasktype=(window.addEventListener)? tasktype : "on"+tasktype
if (target.addEventListener)
target.addEventListener(tasktype, functionref, false)
else if (target.attachEvent)
target.attachEvent(tasktype, functionref)
}
ddequalcolumns.dotask(window, function(){ddequalcolumns.setHeights()}, "load")
ddequalcolumns.dotask(window, function(){if (typeof ddequalcolumns.timer!="undefined") clearTimeout(ddequalcolumns.timer); ddequalcolumns.timer=setTimeout("ddequalcolumns.resetHeights()", 200)}, "resize")
</script>
<div id=container>
<div id=nav>
<ul>
<li>Menu</li>
<li>Menu</li>
<li>Menu</li>
<li>Menu</li>
<li>Menu</li>
</ul>
</div>
<div id=content>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam fermentum consequat ligula vitae posuere. Mauris dolor quam, consequat vel condimentum eget, aliquet sit amet sem. Nulla in lectus ac felis ultrices dignissim quis ac orci. Nam non tellus eget metus sollicitudin venenatis sit amet at dui. Quisque malesuada feugiat tellus, at semper eros mollis sed. In luctus tellus in magna condimentum sollicitudin. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Curabitur vel dui est. Aliquam vitae condimentum dui. Praesent vel mi at odio blandit pellentesque. Proin felis massa, vestibulum a hendrerit ut, imperdiet in nulla. Sed aliquam, dolor id congue porttitor, mauris turpis congue felis, vel luctus ligula libero in arcu. Pellentesque egestas blandit turpis ac aliquet. Sed sit amet orci non turpis feugiat euismod. In elementum tristique tortor ac semper.</p>
</div>
</div>
</body>
</html>
You can include any no of divs in this script.
ddequalcolumns.columnswatch=["nav", "content"]
modify in the above line its enough.
Try this.
If you see those characters you probably just didn’t specify the character encoding properly. Because those characters are the result when an UTF-8 multi-byte string is interpreted with a single-byte encoding like ISO 8859-1 or Windows-1252.
In this case ë
could be encoded with 0xC3 0xAB that represents the Unicode character ë
(U+00EB) in UTF-8.
If you don't want to use numpy, you could use the list of lists concept. To create any 2D array, just use the following syntax:
mat = [[input() for i in range (col)] for j in range (row)]
and then enter the values you want.
If you are looking to checkout master
branch for each submodule -- you can use the following command for that purpose:
git submodule foreach git checkout master
By entering $PATH
on its own at the command prompt, you're trying to run it. This isn't like Windows where you can get your path output by simply typing path
.
If you want to see what the path is, simply echo it:
echo $PATH
Also, if all you are trying to do is break up the main.go file into multiple files, then just name the other files "package main" as long as you only define the main function in one of those files, you are good to go.
public async Task<IHttpActionResult> PutParent(int id, Parent parent)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
if (id != parent.Id)
{
return BadRequest();
}
db.Entry(parent).State = EntityState.Modified;
foreach (Child child in parent.Children)
{
db.Entry(child).State = child.Id == 0 ? EntityState.Added : EntityState.Modified;
}
try
{
await db.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!ParentExists(id))
{
return NotFound();
}
else
{
throw;
}
}
return Ok(db.Parents.Find(id));
}
This is how I solved this problem. This way, EF knows which to add which to update.
So I'm myself new to React and I found a way to do it.
This solution does not require any extra packages.
In the above docs they mention export in Shell and other options, the one I'll attempt to explain is using .env file
1.1 create Root/.env
#.env file
REACT_APP_SECRET_NAME=secretvaluehere123
Important notes it MUST start with REACT_APP_
1.2 Access ENV variable
#App.js file or the file you need to access ENV
<p>print env secret to HTML</p>
<pre>{process.env.REACT_APP_SECRET_NAME}</pre>
handleFetchData() { // access in API call
fetch(`https://awesome.api.io?api-key=${process.env.REACT_APP_SECRET_NAME}`)
.then((res) => res.json())
.then((data) => console.log(data))
}
1.3 Build Env Issue
So after I did step 1.1|2 it was not working, then I found the above issue/solution. React read/creates env when is built so you need to npm run start every time you modify the .env file so the variables get updated.
>>> x = "Hello World!"
>>> x[2:]
'llo World!'
>>> x[:2]
'He'
>>> x[:-2]
'Hello Worl'
>>> x[-2:]
'd!'
>>> x[2:-2]
'llo Worl'
Python calls this concept "slicing" and it works on more than just strings. Take a look here for a comprehensive introduction.
// This one has print statement so you can see the result at every stage if you would like. They are not needed
function crop(image, width, height)
{
image.width = width;
image.height = height;
//print ("in function", image, image.getWidth(), image.getHeight());
return image;
}
var image = new SimpleImage("name of your image here");
//print ("original", image, image.getWidth(), image.getHeight());
//crop(image,200,300);
print ("final", image, image.getWidth(), image.getHeight());
Generically, do
/while
is good for any sort of loop construct where one must execute the loop at least once. It is possible to emulate this sort of looping through either a straight while
or even a for
loop, but often the result is a little less elegant. I'll admit that specific applications of this pattern are fairly rare, but they do exist. One which springs to mind is a menu-based console application:
do {
char c = read_input();
process_input(c);
} while (c != 'Q');
The issue may happen while fetching dependencies from a remote repository. In my case, the repository did not need any authentication and it has been resolved by removing the servers section in the settings.xml file:
<servers>
<server>
<id>SomeRepo</id>
<username>SomeUN</username>
<password>SomePW</password>
</server>
</servers>
ps: I guess your target is mvn clean install instead of maven install clean
I had the same problem, getting the message "ImportError: No module named numpy".
I'm also using anaconda and found out that I needed to add numpy to the ENV I was using. You can check the packages you have in your environment with the command:
conda list
So, when I used that command, numpy was not displayed. If that is your case, you just have to add it, with the command:
conda install numpy
After I did that, the error with the import numpy
was gone
Short circuiting means the second operator will not be checked if the first operator decides the final outcome.
E.g. Expression is: True || False
In case of ||, all we need is one of the side to be True. So if the left hand side is true, there is no point in checking the right hand side, and hence that will not be checked at all.
Similarly, False && True
In case of &&, we need both sides to be True. So if the left hand side is False, there is no point in checking the right hand side, the answer has to be False. And hence that will not be checked at all.
Aside from the parameter-sniffing issue, I've found that SSRS is generally slower at client side processing than (in my case) Crystal reports. The SSRS engine just doesn't seem as capable when it has a lot of rows to locally filter or aggregate. Granted, these are result set design problems which can frequently be addressed (though not always if the details are required for drilldown) but the more um...mature...reporting engine is more forgiving.
In my case I ran the following command and it worked (not that I was expecting it to):
sudo pip uninstall pip
Which resulted in:
Uninstalling pip-6.1.1:
/Library/Python/2.7/site-packages/pip-6.1.1.dist-info/DESCRIPTION.rst
/Library/Python/2.7/site-packages/pip-6.1.1.dist-info/METADATA
/Library/Python/2.7/site-packages/pip-6.1.1.dist-info/RECORD
<and all the other stuff>
...
/usr/local/bin/pip
/usr/local/bin/pip2
/usr/local/bin/pip2.7
Proceed (y/n)? y
Successfully uninstalled pip-6.1.1
In design mode (right click table select modify) highlight both columns right click and choose set primary key
A common PyTorch convention is to save models using either a .pt or .pth file extension.
Save/Load Entire Model Save:
path = "username/directory/lstmmodelgpu.pth"
torch.save(trainer, path)
Load:
model = torch.load(PATH)
model.eval()
Either the main httpd.conf
or the .htaccess
file in this directory or a nearby parent directory probably includes:
Options -Indexes
Your host may have to set it to +Indexes
if you don't have access in .htaccess
and want to list & browse the directory contents, absent a default index.html, index.php
, etc. If the directory should not have a default file and you don't enable Indexes
, you may only directly target the filenames of contents within it.
The Indexes
option is commonly disabled by default on many Apache installations.
Full details are available in the Apache core documentation on Options
It seems good to me. The only improvement I would make is to initialize the StringBuilder
with the length of the string.
StringBuilder sb = new StringBuilder(str.Length);
Two more reasons not to use inline handlers:
Given an arbitrary string, if you want to be able to construct an inline handler that calls a function with that string, for the general solution, you'll have to escape the attribute delimiters (with the associated HTML entity), and you'll have to escape the delimiter used for the string inside the attribute, like the following:
const str = prompt('What string to display on click?', 'foo\'"bar');
const escapedStr = str
// since the attribute value is going to be using " delimiters,
// replace "s with their corresponding HTML entity:
.replace(/"/g, '"')
// since the string literal inside the attribute is going to delimited with 's,
// escape 's:
.replace(/'/g, "\\'");
document.body.insertAdjacentHTML(
'beforeend',
'<button onclick="alert(\'' + escapedStr + '\')">click</button>'
);
_x000D_
That's incredibly ugly. From the above example, if you didn't replace the '
s, a SyntaxError would result, because alert('foo'"bar')
is not valid syntax. If you didn't replace the "
s, then the browser would interpret it as an end to the onclick
attribute (delimited with "
s above), which would also be incorrect.
If one habitually uses inline handlers, one would have to make sure to remember do something similar to the above (and do it right) every time, which is tedious and hard to understand at a glance. Better to avoid inline handlers entirely so that the arbitrary string can be used in a simple closure:
const str = prompt('What string to display on click?', 'foo\'"bar');
const button = document.body.appendChild(document.createElement('button'));
button.textContent = 'click';
button.onclick = () => alert(str);
_x000D_
Isn't that so much nicer?
What do you think the following code will log?
let disabled = true;
_x000D_
<form>
<button onclick="console.log(disabled);">click</button>
</form>
_x000D_
Try it, run the snippet. It's probably not what you were expecting. Why does it produce what it does? Because inline handlers run inside with
blocks. The above code is inside three with
blocks: one for the document
, one for the <form>
, and one for the <button>
:
let disabled = true;
_x000D_
<form>
<button onclick="console.log(disabled);">click</button>
</form>
_x000D_
Since disabled
is a property of the button, referencing disabled
inside the inline handler refers to the button's property, not the outer disabled
variable. This is quite counter-intuitive. with
has many problems: it can be the source of confusing bugs and significantly slows down code. It isn't even permitted at all in strict mode. But with inline handlers, you're forced to run the code through with
s - and not just through one with
, but through multiple nested with
s. It's crazy.
with
should never be used in code. Because inline handlers implicitly require with
along with all its confusing behavior, inline handlers should be avoided as well.
Tried all above. Didn't work.
Here's what worked. Go to the file called modules.xml
Delete all the modules there. Clean and rebuild.
Use the fromkeys
function to initialize a dictionary with any default value. In your case, you will initialize with None
since you don't have a default value in mind.
empty_dict = dict.fromkeys(['apple','ball'])
this will initialize empty_dict
as:
empty_dict = {'apple': None, 'ball': None}
As an alternative, if you wanted to initialize the dictionary with some default value other than None
, you can do:
default_value = 'xyz'
nonempty_dict = dict.fromkeys(['apple','ball'],default_value)
Simply put a file named favicon.ico
in the webroot.
If you want to know more, please start reading:
echo "sdk.dir = /Users/$(whoami)/Library/Android/sdk" > android/local.properties
If I understand your question correctly you do want the lines after TERMINATE
, not including the TERMINATE
-line. awk
can do this in a simple way:
awk '{if(found) print} /TERMINATE/{found=1}' your_file
Explanation:
if(found) print
) will not print anything to start off with.This will print all lines after the TERMINATE
-line.
Generalization:
Example:
$ cat ex_file.txt
not this line
second line
START
A good line to include
And this line
Yep
END
Nope more
...
never ever
$ awk '/END/{found=0} {if(found) print} /START/{found=1}' ex_file.txt
A good line to include
And this line
Yep
$
Explanation:
found
is set.found=1
so that the following lines are printed. Note that this check is done after the actual printing to exclude the start-line from the result.Notes:
BEGIN{found=0}
to the start of the awk-expression.This can be used to find all the numeric values (even those formatted as text) in a sheet and convert them to single (CSng function).
For Each r In Sheets("Sheet1").UsedRange.SpecialCells(xlCellTypeConstants)
If IsNumeric(r) Then
r.Value = CSng(r.Value)
r.NumberFormat = "0.00"
End If
Next
typedef struct Freqamp{
double freq;
double amp;
}FREQAMP;
bool struct_cmp_by_freq(FREQAMP a, FREQAMP b)
{
return a.freq < b.freq;
}
main()
{
vector <FREQAMP> temp;
FREQAMP freqAMP;
freqAMP.freq = 330;
freqAMP.amp = 117.56;
temp.push_back(freqAMP);
freqAMP.freq = 450;
freqAMP.amp = 99.56;
temp.push_back(freqAMP);
freqAMP.freq = 110;
freqAMP.amp = 106.56;
temp.push_back(freqAMP);
sort(temp.begin(),temp.end(), struct_cmp_by_freq);
}
if compare is false, it will do "swap".
It seem like your Resort
method doesn't declare a compareTo
method. This method typically belongs to the Comparable
interface. Make sure your class implements it.
Additionally, the compareTo
method is typically implemented as accepting an argument of the same type as the object the method gets invoked on. As such, you shouldn't be passing a String
argument, but rather a Resort
.
Alternatively, you can compare the names of the resorts. For example
if (resortList[mid].getResortName().compareTo(resortName)>0)
Set a property for the current lesson: currentLesson
. It will hold, obviously, the 'number' of the choosen lesson. On each button click, set the currentLesson
value to 'number'/ order of the button, i.e. for the first button, it will be '1', for the second '2' and so on.
Each button now can be disabled with [disabled] attribute, if it the currentLesson
is not the same as it's order.
HTML
<button (click)="currentLesson = '1'"
[disabled]="currentLesson !== '1'" class="primair">
Start lesson</button>
<button (click)="currentLesson = '2'"
[disabled]="currentLesson !== '2'" class="primair">
Start lesson</button>
.....//so on
Typescript
currentLesson:string;
classes = [
{
name: 'string',
level: 'string',
code: 'number',
currentLesson: '1'
}]
constructor(){
this.currentLesson=this.classes[0].currentLesson
}
Putting everything in a loop:
HTML
<div *ngFor="let class of classes; let i = index">
<button [disabled]="currentLesson !== i + 1" class="primair">
Start lesson {{i + 1}}</button>
</div>
Typescript
currentLesson:string;
classes = [
{
name: 'Lesson1',
level: 1,
code: 1,
},{
name: 'Lesson2',
level: 1,
code: 2,
},
{
name: 'Lesson3',
level: 2,
code: 3,
}]
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.
The other scenario you mush verify is that the file you're trying to unpack is not empty and is valid.
In my case I wasn't downloading the file correctly, after double check and I made sure I had the right file I could unpack it without any issues.
Countdown of user input
Interface Screenshot
import React, { Component } from 'react';
import './App.css';
class App extends Component {
constructor() {
super();
this.state = {
hours: 0,
minutes: 0,
seconds:0
}
this.hoursInput = React.createRef();
this.minutesInput= React.createRef();
this.secondsInput = React.createRef();
}
inputHandler = (e) => {
this.setState({[e.target.name]: e.target.value});
}
convertToSeconds = ( hours, minutes,seconds) => {
return seconds + minutes * 60 + hours * 60 * 60;
}
startTimer = () => {
this.timer = setInterval(this.countDown, 1000);
}
countDown = () => {
const { hours, minutes, seconds } = this.state;
let c_seconds = this.convertToSeconds(hours, minutes, seconds);
if(c_seconds) {
// seconds change
seconds ? this.setState({seconds: seconds-1}) : this.setState({seconds: 59});
// minutes change
if(c_seconds % 60 === 0 && minutes) {
this.setState({minutes: minutes -1});
}
// when only hours entered
if(!minutes && hours) {
this.setState({minutes: 59});
}
// hours change
if(c_seconds % 3600 === 0 && hours) {
this.setState({hours: hours-1});
}
} else {
clearInterval(this.timer);
}
}
stopTimer = () => {
clearInterval(this.timer);
}
resetTimer = () => {
this.setState({
hours: 0,
minutes: 0,
seconds: 0
});
this.hoursInput.current.value = 0;
this.minutesInput.current.value = 0;
this.secondsInput.current.value = 0;
}
render() {
const { hours, minutes, seconds } = this.state;
return (
<div className="App">
<h1 className="title"> (( React Countdown )) </h1>
<div className="inputGroup">
<h3>Hrs</h3>
<input ref={this.hoursInput} type="number" placeholder={0} name="hours" onChange={this.inputHandler} />
<h3>Min</h3>
<input ref={this.minutesInput} type="number" placeholder={0} name="minutes" onChange={this.inputHandler} />
<h3>Sec</h3>
<input ref={this.secondsInput} type="number" placeholder={0} name="seconds" onChange={this.inputHandler} />
</div>
<div>
<button onClick={this.startTimer} className="start">start</button>
<button onClick={this.stopTimer} className="stop">stop</button>
<button onClick={this.resetTimer} className="reset">reset</button>
</div>
<h1> Timer {hours}: {minutes} : {seconds} </h1>
</div>
);
}
}
export default App;
Very simple and surprisingly fast: (without numpy or pandas)
str( myDate ) == 'NaT' # True if myDate is NaT
Ok, it's a little nasty, but given the ambiguity surrounding 'NaT' it does the job nicely.
It's also useful when comparing two dates either of which might be NaT as follows:
str( date1 ) == str( date1 ) # True
str( date1 ) == str( NaT ) # False
str( NaT ) == str( date1 ) # False
wait for it...
str( NaT ) == str( Nat ) # True (hooray!)
It looks like the height:100%
'chain' is being broken at div#main
. Try adding height:100%
to it and that may get you closer to your goal.
I recently run into the same problem. I solved it by implementing my own ImageView class.
Here is my Kotlin implementation:
class MyImageView(context: Context): ImageView(context) {
private var currentDrawableId: Int? = null
override fun setImageResource(resId: Int) {
super.setImageResource(resId)
currentDrawableId = resId
}
fun getDrawableId() {
return currentDrawableId
}
fun compareCurrentDrawable(toDrawableId: Int?): Boolean {
if (toDrawableId == null || currentDrawableId != toDrawableId) {
return false
}
return true
}
}
Imagine that we want to apply a series of functions to x
if and only if x
is non-null:
if (x !== null) x = a(x);
if (x !== null) x = b(x);
if (x !== null) x = c(x);
Now let's say that we need to do the same to y
:
if (y !== null) y = a(y);
if (y !== null) y = b(y);
if (y !== null) y = c(y);
And the same to z
:
if (z !== null) z = a(z);
if (z !== null) z = b(z);
if (z !== null) z = c(z);
As you can see without a proper abstraction, we'll end up duplicating code over and over again. Such an abstraction already exists: the Maybe monad.
The Maybe monad holds both a value and a computational context:
A naive implementation would look like this:
?? This implementation is for illustration purpose only! This is not how it should be done and is wrong at many levels. However this should give you a better idea of what I am talking about.
As you can see nothing can break:
const abc = obj =>_x000D_
Maybe_x000D_
.of(obj)_x000D_
.map(o => o.a)_x000D_
.map(o => o.b)_x000D_
.map(o => o.c)_x000D_
.value;_x000D_
_x000D_
const values = [_x000D_
{},_x000D_
{a: {}},_x000D_
{a: {b: {}}},_x000D_
{a: {b: {c: 42}}}_x000D_
];_x000D_
_x000D_
console.log(_x000D_
_x000D_
values.map(abc)_x000D_
_x000D_
);
_x000D_
<script>_x000D_
function Maybe(x) {_x000D_
this.value = x; //-> container for our value_x000D_
}_x000D_
_x000D_
Maybe.of = x => new Maybe(x);_x000D_
_x000D_
Maybe.prototype.map = function (fn) {_x000D_
if (this.value == null) { //-> computational context_x000D_
return this;_x000D_
}_x000D_
return Maybe.of(fn(this.value));_x000D_
};_x000D_
</script>
_x000D_
Appendix 1
I cannot explain what monads are as this is not the purpose of this post and there are people out there better at this than I am. However as Eric Elliot said in hist blog post JavaScript Monads Made Simple:
Regardless of your skill level or understanding of category theory, using monads makes your code easier to work with. Failing to take advantage of monads may make your code harder to work with (e.g., callback hell, nested conditional branches, more verbosity).
Appendix 2
Here's how I'd solve your issue using the Maybe monad from monetjs
const prop = key => obj => Maybe.fromNull(obj[key]);_x000D_
_x000D_
const abc = obj =>_x000D_
Maybe_x000D_
.fromNull(obj)_x000D_
.flatMap(prop('a'))_x000D_
.flatMap(prop('b'))_x000D_
.flatMap(prop('c'))_x000D_
.orSome('')_x000D_
_x000D_
const values = [_x000D_
{},_x000D_
{a: {}},_x000D_
{a: {b: {}}},_x000D_
{a: {b: {c: 42}}}_x000D_
];_x000D_
_x000D_
console.log(_x000D_
_x000D_
values.map(abc)_x000D_
_x000D_
);
_x000D_
<script src="https://www.unpkg.com/[email protected]/dist/monet.js"></script>_x000D_
<script>const {Maybe} = Monet;</script>
_x000D_
In Visual Studio 2015 From the top menu
Edit -> Advanced -> View White Space
or CTRL + E, S
junitArtifactName
might also be the case if the JUnit in use isn't the standard (junit:junit
) but for instance...
<dependency>
<groupId>org.eclipse.orbit</groupId>
<artifactId>org.junit</artifactId>
<version>4.11.0</version>
<type>bundle</type>
<scope>test</scope>
</dependency>
I started building my app with create-react-app (see "Create a New App" tab). The README.md that comes with it gives this example:
import React from 'react';
import logo from './logo.png'; // Tell Webpack this JS file uses this image
console.log(logo); // /logo.84287d09.png
function Header() {
// Import result is the URL of your image
return <img src={logo} alt="Logo" />;
}
export default Header;
This worked perfectly for me. Here's a link to the master doc for that README, which explains (excerpt):
...You can import a file right in a JavaScript module. This tells Webpack to include that file in the bundle. Unlike CSS imports, importing a file gives you a string value. This value is the final path you can reference in your code, e.g. as the src attribute of an image or the href of a link to a PDF.
To reduce the number of requests to the server, importing images that are less than 10,000 bytes returns a data URI instead of a path. This applies to the following file extensions: bmp, gif, jpg, jpeg, and png...
I have some issue, the fix is:
greetings!
Here I got the error:
Failed to execute 'atob' on 'Window': The string to be decoded is not correctly encoded.
Because you didn't pass a base64-encoded string. Look at your functions: both download
and dataURItoBlob
do expect a data URI for some reason; you however are passing a plain html markup string to download
in your example.
Not only is HTML invalid as base64, you are calling .split(',')[1]
on it which will yield undefined
- and "undefined"
is not a valid base64-encoded string either.
I don't know, but I read that I need to encode my string to base64
That doesn't make much sense to me. You want to encode it somehow, only to decode it then?
What should I call and how?
Change the interface of your download
function back to where it received the filename
and text
arguments.
Notice that the BlobBuilder
does not only support appending whole strings (so you don't need to create those ArrayBuffer
things), but also is deprecated in favor of the Blob
constructor.
Can I put a name on my saved file?
Yes. Don't use the Blob
constructor, but the File
constructor.
function download(filename, text) {
try {
var file = new File([text], filename, {type:"text/plain"});
} catch(e) {
// when File constructor is not supported
file = new Blob([text], {type:"text/plain"});
}
var url = window.URL.createObjectURL(file);
…
}
download('test.html', "<html>" + document.documentElement.innerHTML + "</html>");
See JavaScript blob filename without link on what to do with that object url, just setting the current location to it doesn't work.
var f = ()=>{
if (!window.jQuery) {
var e = document.createElement('script');
e.src = "https://code.jquery.com/jquery-3.2.1.min.js";
e.onload = function () {
jQuery.noConflict();
console.log('jQuery ' + jQuery.fn.jquery + ' injected.');
};
document.head.appendChild(e);
} else {
console.log('jQuery ' + jQuery.fn.jquery + '');
}
};
f();
You can get the value
attribute directly since you know it's an <input>
element, but your current usage of .val()
is already the current one.
For the above, just use .value
on the DOM element directly, like this:
$(document).ready(function(){
$("#txt_name").keyup(function(){
alert(this.value);
});
});
If you write an unmanaged program and use CreateProcess API then you should initialize lpStartupInfo
parameter of the type STARTUPINFO so that wShowWindow
field of the struct is SW_HIDE and not forget to use STARTF_USESHOWWINDOW
flag in the dwFlags
field of STARTUPINFO. Another method is to use CREATE_NO_WINDOW flag of dwCreationFlags
parameter. The same trick work also with ShellExecute and ShellExecuteEx functions.
If you write a managed application you should follows advices from http://blogs.msdn.com/b/jmstall/archive/2006/09/28/createnowindow.aspx: initialize ProcessStartInfo
with CreateNoWindow = true
and UseShellExecute = false
and then use as a parameter of . Exactly like in case of you can set property WindowStyle
of ProcessStartInfo
to ProcessWindowStyle.Hidden
instead or together with CreateNoWindow = true
.
You can use a VBS script which you start with wcsript.exe. Inside the script you can use CreateObject("WScript.Shell")
and then Run with 0 as the second (intWindowStyle
) parameter. See http://www.robvanderwoude.com/files/runnhide_vbs.txt as an example. I can continue with Kix, PowerShell and so on.
If you don't want to write any program you can use any existing utility like CMDOW /RUN /HID "c:\SomeDir\MyBatch.cmd", hstart /NOWINDOW /D=c:\scripts "c:\scripts\mybatch.bat", hstart /NOCONSOLE "batch_file_1.bat" which do exactly the same. I am sure that you will find much more such kind of free utilities.
In some scenario (for example starting from UNC path) it is important to set also a working directory to some local path (%SystemRoot%\system32
work always). This can be important for usage any from above listed variants of starting hidden batch.
If you are using VS Code with flutter, you should find it in your app folder, under the android folder:
C:\myappFolder\android
You can run this in the terminal:
./gradlew signingReport
If one of you guys are using virtual terminal in proteus and want to clear it just add Serial.write(0x0C); and it gonna work fine
How about this:
$ seq 1 100000 | tail -n +10000 | head -n 10
10000
10001
10002
10003
10004
10005
10006
10007
10008
10009
It uses tail
to output from the 10,000th line and onwards and then head
to only keep 10 lines.
The same (almost) result with sed
:
$ seq 1 100000 | sed -n '10000,10010p'
10000
10001
10002
10003
10004
10005
10006
10007
10008
10009
10010
This one has the advantage of allowing you to input the line range directly.
I think you can always try the Ctrl + Shift + A to find the action/command you need.
Here you can try to press Ctrl + Shift + A and input «test» to find the command.
It's not always just a default constraint that prevents from droping a column and sometimes indexes can also block you from droping the constraint. So I wrote a procedure that drops any index or constraint on a column and the column it self at the end.
IF OBJECT_ID ('ADM_delete_column', 'P') IS NOT NULL
DROP procedure ADM_delete_column;
GO
CREATE procedure ADM_delete_column
@table_name_in nvarchar(300)
, @column_name_in nvarchar(300)
AS
BEGIN
/* Author: Matthis ([email protected] at 2019.07.20)
License CC BY (creativecommons.org)
Desc: Administrative procedure that drops columns at MS SQL Server
- if there is an index or constraint on the column
that will be dropped in advice
=> input parameters are TABLE NAME and COLUMN NAME as STRING
*/
SET NOCOUNT ON
--drop index if exist (search first if there is a index on the column)
declare @idx_name VARCHAR(100)
SELECT top 1 @idx_name = i.name
from sys.tables t
join sys.columns c
on t.object_id = c.object_id
join sys.index_columns ic
on c.object_id = ic.object_id
and c.column_id = ic.column_id
join sys.indexes i
on i.object_id = ic.object_id
and i.index_id = ic.index_id
where t.name like @table_name_in
and c.name like @column_name_in
if @idx_name is not null
begin
print concat('DROP INDEX ', @idx_name, ' ON ', @table_name_in)
exec ('DROP INDEX ' + @idx_name + ' ON ' + @table_name_in)
end
--drop fk constraint if exist (search first if there is a constraint on the column)
declare @fk_name VARCHAR(100)
SELECT top 1 @fk_name = CONSTRAINT_NAME
from INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE
where TABLE_NAME like @table_name_in
and COLUMN_NAME like @column_name_in
if @fk_name is not null
begin
print concat('ALTER TABLE ', @table_name_in, ' DROP CONSTRAINT ', @fk_name)
exec ('ALTER TABLE ' + @table_name_in + ' DROP CONSTRAINT ' + @fk_name)
end
--drop column if exist
declare @column_name VARCHAR(100)
SELECT top 1 @column_name = COLUMN_NAME
FROM INFORMATION_SCHEMA.COLUMNS
WHERE COLUMN_NAME like concat('%',@column_name_in,'%')
if @column_name is not null
begin
print concat('ALTER TABLE ', @table_name_in, ' DROP COLUMN ', @column_name)
exec ('ALTER TABLE ' + @table_name_in + ' DROP COLUMN ' + @column_name)
end
end;
GO
--to run the procedure use this execute and fill the parameters
execute ADM_delete_column
@table_name_in = ''
, @column_name_in = ''
;
Setting an Initial Catalog allows you to set the database that queries run on that connection will use by default. If you do not set this for a connection to a server in which multiple databases are present, in many cases you will be required to have a USE statement in every query in order to explicitly declare which database you are trying to run the query on. The Initial Catalog setting is a good way of explicitly declaring a default database.
As pointed already by @Arun P Johny the root cause of the problem is that at the moment when AuthenticationSuccessEvent
is processed SecurityContextHolder
is not populated by Authentication object. So any declarative authorization checks (that must get user rights from SecurityContextHolder
) will not work. I give you another idea how to solve this problem. There are two ways how you can run your custom code immidiately after successful authentication:
AuthenticationSuccessEvent
AuthenticationSuccessHandler
implementation.AuthenticationSuccessHandler
has one important advantage over first way: SecurityContextHolder
will be already populated. So just move your stateService.rowCount()
call into loginsuccesshandler.LoginSuccessHandler#onAuthenticationSuccess(...)
method and the problem will go away.
Found this on github...
import warnings
warnings.simplefilter(action='ignore', category=FutureWarning)
import pandas
According to matplotlib documentation, The signature of the Axes
class grid()
method is as follows:
Axes.grid(b=None, which='major', axis='both', **kwargs)
Turn the axes grids on or off.
which
can be ‘major’ (default), ‘minor’, or ‘both’ to control whether major tick grids, minor tick grids, or both are affected.
axis
can be ‘both’ (default), ‘x’, or ‘y’ to control which set of gridlines are drawn.
So in order to show grid lines for both the x axis and y axis, we can use the the following code:
ax = plt.gca()
ax.grid(which='major', axis='both', linestyle='--')
This method gives us finer control over what to show for grid lines.
Solution that worked for me:
Have your tried using the 'return' keyword?
def rps():
return True
You need to iterate both the groups and the items. $.each() takes a collection as first parameter and data.response.venue.tips.groups.items.text
tries to point to a string. Both groups
and items
are arrays.
Verbose version:
$.getJSON(url, function (data) {
// Iterate the groups first.
$.each(data.response.venue.tips.groups, function (index, value) {
// Get the items
var items = this.items; // Here 'this' points to a 'group' in 'groups'
// Iterate through items.
$.each(items, function () {
console.log(this.text); // Here 'this' points to an 'item' in 'items'
});
});
});
Or more simply:
$.getJSON(url, function (data) {
$.each(data.response.venue.tips.groups, function (index, value) {
$.each(this.items, function () {
console.log(this.text);
});
});
});
In the JSON you specified, the last one would be:
$.getJSON(url, function (data) {
// Get the 'items' from the first group.
var items = data.response.venue.tips.groups[0].items;
// Find the last index and the last item.
var lastIndex = items.length - 1;
var lastItem = items[lastIndex];
console.log("User: " + lastItem.user.firstName + " " + lastItem.user.lastName);
console.log("Date: " + lastItem.createdAt);
console.log("Text: " + lastItem.text);
});
This would give you:
User: Damir P.
Date: 1314168377
Text: ajd da vidimo hocu li znati ponoviti
For numerical data you have the solution. But it is categorical data, you said. Then life gets a bit more complicated...
Well, first : The amount of association between two categorical variables is not measured with a Spearman rank correlation, but with a Chi-square test for example. Which is logic actually. Ranking means there is some order in your data. Now tell me which is larger, yellow or red? I know, sometimes R does perform a spearman rank correlation on categorical data. If I code yellow 1 and red 2, R would consider red larger than yellow.
So, forget about Spearman for categorical data. I'll demonstrate the chisq-test and how to choose columns using combn(). But you would benefit from a bit more time with Agresti's book : http://www.amazon.com/Categorical-Analysis-Wiley-Probability-Statistics/dp/0471360937
set.seed(1234)
X <- rep(c("A","B"),20)
Y <- sample(c("C","D"),40,replace=T)
table(X,Y)
chisq.test(table(X,Y),correct=F)
# I don't use Yates continuity correction
#Let's make a matrix with tons of columns
Data <- as.data.frame(
matrix(
sample(letters[1:3],2000,replace=T),
ncol=25
)
)
# You want to select which columns to use
columns <- c(3,7,11,24)
vars <- names(Data)[columns]
# say you need to know which ones are associated with each other.
out <- apply( combn(columns,2),2,function(x){
chisq.test(table(Data[,x[1]],Data[,x[2]]),correct=F)$p.value
})
out <- cbind(as.data.frame(t(combn(vars,2))),out)
Then you should get :
> out
V1 V2 out
1 V3 V7 0.8116733
2 V3 V11 0.1096903
3 V3 V24 0.1653670
4 V7 V11 0.3629871
5 V7 V24 0.4947797
6 V11 V24 0.7259321
Where V1 and V2 indicate between which variables it goes, and "out" gives the p-value for association. Here all variables are independent. Which you would expect, as I created the data at random.
Sometimes in situations like this I miss my youth, when Access was my poison of choice, and I could give each radio button in a group its own value.
My hack in C# is to use the tag to set the value, and when I make a selection from the group, I read the value of the tag of the selected radiobutton. In this example, directionGroup is the group in which I have four five radio buttons with "None" and "NE", "SE", "NW" and "SW" as the tags on the other four radiobuttons.
I proactively used a button to capture the value of the checked button, because because assigning one event handler to all of the buttons' CHeckCHanged event causes EACH button to fire, because changing one changes them all. So the value of sender is always the first RadioButton in the group. Instead, I use this method when I need to find out which one is selected, with the values I want to retrieve in the Tag property of each RadioButton.
private void ShowSelectedRadioButton()
{
List<RadioButton> buttons = new List<RadioButton>();
string selectedTag = "No selection";
foreach (Control c in directionGroup.Controls)
{
if (c.GetType() == typeof(RadioButton))
{
buttons.Add((RadioButton)c);
}
}
var selectedRb = (from rb in buttons where rb.Checked == true select rb).FirstOrDefault();
if (selectedRb!=null)
{
selectedTag = selectedRb.Tag.ToString();
}
FormattableString result = $"Selected Radio button tag ={selectedTag}";
MessageBox.Show(result.ToString());
}
FYI, I have tested and used this in my work.
Joey
Use this i liked it so much since creates link with blue color to particular text only not on whole label text: FRHyperLabel
To do:
Download from above link and copy FRHyperLabel.h
, FRHyperLabel.m
to your project.
Drag drop UILabel
in your Storyboard
and define custom class name to FRHyperLabel
in identify inspector as shown in image.
@property (weak, nonatomic) IBOutlet FRHyperLabel *label;
`NSString *string = @"By uploading I agree to the Terms of Use"; NSDictionary *attributes = @{NSFontAttributeName: [UIFont preferredFontForTextStyle:UIFontTextStyleHeadline]};
_label.attributedText = [[NSAttributedString alloc]initWithString:string attributes:attributes];
[_label setFont:[_label.font fontWithSize:13.0]];
[_label setLinkForSubstring:@"Terms of Use" withLinkHandler:^(FRHyperLabel *label, NSString *substring){
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"http://www.google.com"]];
}];`
You can simply set a system property on the server as follows...
-Dspring.profiles.active=test
Edit: To add this to tomcat in eclipse, select Run -> Run Configurations
and choose your Tomcat run configuration. Click the Arguments
tab and add -Dspring.profiles.active=test at the end of VM arguments
. Another way would be to add the property to your catalina.properties in your Servers
project, but if you add it there omit the -D
Edit: For use with Spring Boot, you have an additional choice. You can pass the property as a program argument if you prepend the property with two dashes.
Here are two examples using a Spring Boot executable jar file...
System Property
[user@host ~]$ java -jar -Dspring.profiles.active=test myproject.jar
Program Argument
[user@host ~]$ java -jar myproject.jar --spring.profiles.active=test
I was having this issue and fixed it by going to: C:\Dev-Cpp\libexec\gcc\mingw32\3.4.2 , then deleting collect2.exe
TLDR: they are equivalent Error(x) === new Error(x)
.
// this:
const x = Error('I was created using a function call!');
????// has the same functionality as this:
const y = new Error('I was constructed via the "new" keyword!');
source: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error
throw and throw Error will are functionally equivalent. But when you catch them and serialize them to console.log they are not serialized exactly the same way:
throw 'Parameter is not a number!';
throw new Error('Parameter is not a number!');
throw Error('Parameter is not a number!');
Console.log(e) of the above will produce 2 different results:
Parameter is not a number!
Error: Parameter is not a number!
Error: Parameter is not a number!
As discussed in the comments, this can be achieved by converting the entry into Date
format and extracting the year, for instance like this:
format(as.Date(df1$Date, format="%d/%m/%Y"),"%Y")
None of these solutions works universally throughout the app. One thing I found to help manage the fonts in Xcode is opening the Storyboard as Source code (Control-click storyboard in Files navigator > "Open as" > "Source"), and then doing a find-and-replace.
there you go
date('d.m.Y',strtotime("-1 days"));
this will work also if month change
you can also do in this way using input-group
<div class="input-group">
<input class="form-control"
placeholder="I can help you to find anything you want!">
<div class="input-group-addon" ><i class="fa fa-search"></i></div>
</div>
choices = {'key1':'val1', 'key2':'val2'}
Here's the template:
<ul>
{% for key, value in choices.items %}
<li>{{key}} - {{value}}</li>
{% endfor %}
</ul>
Basically, .items
is a Django keyword that splits a dictionary into a list of (key, value)
pairs, much like the Python method .items()
. This enables iteration over a dictionary in a Django template.
Create a .reg file containing your proxy settings for your users. Create a batch file setting it to setting it to run the .reg file with the extension /s
On a server using a logon script, tell the logon to run the batch file. Jason
So there might be a few things wrong here.
First start by reading how to use XMLHttpRequest.open()
because there's a third optional parameter for specifying whether to make an asynchronous request, defaulting to true. That means you're making an asynchronous request and need to specify a callback function before you do the send()
. Here's an example from MDN:
var oXHR = new XMLHttpRequest();
oXHR.open("GET", "http://www.mozilla.org/", true);
oXHR.onreadystatechange = function (oEvent) {
if (oXHR.readyState === 4) {
if (oXHR.status === 200) {
console.log(oXHR.responseText)
} else {
console.log("Error", oXHR.statusText);
}
}
};
oXHR.send(null);
Second, since you're getting a 101 error, you might use the wrong URL. So make sure that the URL you're making the request with is correct. Also, make sure that your server is capable of serving your quiz.xml
file.
You'll probably have to debug by simplifying/narrowing down where the problem is. So I'd start by making an easy synchronous request so you don't have to worry about the callback function. So here's another example from MDN for making a synchronous request:
var request = new XMLHttpRequest();
request.open('GET', 'file:///home/user/file.json', false);
request.send(null);
if (request.status == 0)
console.log(request.responseText);
Also, if you're just starting out with Javascript, you could refer to MDN for Javascript API documentation/examples/tutorials.
you should use conditional comments
<!--[if IE 9]>
<script type="text/javascript">
window.isIE9 = true;
</script>
<![endif]-->
You can then check for $window.isIE9 in your controllers.
After trying out a combination of the answers here, this is what is working for me.
I'm using Genymotion as my emulator.
1 Start up Genymotion emulator.
2 From a terminal
cd AwesomeProject
react-native run-android # it loads in genymotion and fails with bundle error
react-native start > /dev/null 2>&1 & # from dsissitka
adb reverse tcp:8081 tcp:8081 # from dsissitka
3 Reload from emulator.
It loads!
I can now begin developing.
Run this command line on your preferred shell session:
db2 "select tabname from syscat.tables where owner = 'DB2INST1'"
Maybe you'd like to modify the owner name, and need to check the list of current owners?
db2 "select distinct owner from syscat.tables"
I typically see a 30% speed improvement for compute-intensive code on x86-64 compared to x86. This is most likely due to the fact that we have 16 x 64 bit general purpose registers and 16 x SSE registers instead of 8 x 32 bit general purpose registers and 8 x SSE registers. This is with the Intel ICC compiler (11.1) on an x86-64 Linux - results with other compilers (e.g. gcc), or with other operating systems (e.g. Windows), may be different of course.
I finally got this to work on my own hosted xampp windows 10 server web site. I.e. padlocks came up as ssl. I am using xampp version from November 2020.
Went to certbot.eff.org. Selected from their home page software [apache] and system [windows]. Then downloaded and installed certbot software found at the next page into my C drive.
Then from command line [cmd in Windows Start and then before you open cmd right click to run cmd as admin] I enhtered the command from Certbot page above. I.e. navigated to system32-- C:\WINDOWS\system32> certbot certonly --standalone
Then followed the prompts and enteredmy domain name. This created certs as cert1.pem and key1.pem in C:\Certbot yourwebsitedomain folder. the cmd windows tells you where these are.
Then took these and changed their names from cert1.pem to my domainname or shorter+cert.pem and same for domainname or shorter+key.key. Copied these into C:\xampp\apache\ssl.crt and ssl.key folders respectively.
Then for G:\xampp\apache\conf\extra\httpd-vhosts entered the following:
<VirtualHost *:443>
DocumentRoot "G:/xampp/htdocs/yourwebsitedomainname.hopto.org/public/" ###NB My document root is public. Yours may not be. Or could have an index.php page before /public###
ServerName yourwebsitedomainnamee.hopto.org
<Directory G:/xampp/htdocs/yourwebsitedomainname.hopto.org>
Options Indexes FollowSymLinks Includes ExecCGI
AllowOverride All
Require all granted
</Directory>
ErrorLog "G:/xampp/apache/logs/error.log"
CustomLog "G:/xampp/apache/logs/access.log" common
SSLEngine on
SSLCertificateFile "G:\xampp\apache\conf\ssl.crt\abscert.pem"
SSLCertificateKeyFile "G:\xampp\apache\conf\ssl.key\abskey.pem"
</VirtualHost>
<VirtualHost _default_:443>
DocumentRoot "G:/xampp/htdocs/yourwebsitedomainnamee.hopto.org/public/"
###NB My document root is public. Yours may not be. Or could have an index.php page before /public###
SSLEngine on
SSLCertificateFile "conf/ssl.crt/abscert.pem"
SSLCertificateKeyFile "conf/ssl.key/abskey.pem"
CustomLog "G:/xampp/apache/logs/ssl_request.log" \
"%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \"%r\" %b"
</VirtualHost>
Note1. I used www.noip.com to register the domain name. Note2. Rather then try to get them to give me a ssl certificate, as I could not get it to work, the above worked instead. Note3 I use the noip DUC software to keep my personally hosted web site in sync with noip. Note4. Very important to stop and start xampp server after each change you make in xampp. If xampp fails for some reason instead of starting the xampp consol try the start xampp as this will give you problems you can bug fix. Copy these quickly and paste into note.txt.
var newTH = document.createElement('th');
newTH.setAttribute("onclick", "removeColumn(#)");
newTH.setAttribute("id", "#");
function removeColumn(#){
// remove column #
}
Other have hit this one on the head:
main(int argc, char **argv)
give you direct access to the command line (after it has been mangled and tokenized by the shell)getopt()
and getopt_long()
but as you've seen the code to use them is a bit wordy, and quite idomatic. I generally push it out of view with something like:
typedef
struct options_struct {
int some_flag;
int other_flage;
char *use_file;
} opt_t;
/* Parses the command line and fills the options structure,
* returns non-zero on error */
int parse_options(opt_t *opts, int argc, char **argv);
Then first thing in main:
int main(int argc, char **argv){
opt_t opts;
if (parse_options(&opts,argc,argv)){
...
}
...
}
Or you could use one of the solutions suggested in Argument-parsing helpers for C/UNIX.
This worked for me.
app.get('/', function (req, res) {
res.header("Access-Control-Allow-Origin", "*");
res.send('hello world')
})
You can change * to fit your needs. Hope this can help.
Try this...
SELECT CASE WHEN
(DATEADD(year,DATEDIFF(year, @datestart ,@dateend) , @datestart) > @dateend)
THEN DATEDIFF(year, @datestart ,@dateend) -1
ELSE DATEDIFF(year, @datestart ,@dateend)
END
Basically the "DateDiff( year...", gives you the age the person will turn this year, so i have just add a case statement to say, if they have not had a birthday yet this year, then subtract 1 year, else return the value.
As Obama says "Yes We Can". Here is the link to it. developers.google.com/#jquery
You need to use
ajax.googleapis.com/ajax/libs/jqueryui/[VERSION NO]/jquery-ui.min.js
ajax.googleapis.com/ajax/libs/jqueryui/[VERSION NO]/themes/[THEME NAME]/jquery-ui.min.css
jQuery CDN
code.jquery.com/ui/[VERSION NO]/jquery-ui.min.js
code.jquery.com/ui/[VERSION NO]/themes/[THEME NAME]/jquery-ui.min.css
Microsoft
ajax.aspnetcdn.com/ajax/jquery.ui/[VERSION NO]/jquery-ui.min.js
ajax.aspnetcdn.com/ajax/jquery.ui/[VERSION NO]/themes/[THEME NAME]/jquery-ui.min.css
Find theme names here http://jqueryui.com/themeroller/ in gallery subtab
.
But i would not recommend you hosting from cdn for the following reasons
http://zoompf.com/blog/2010/01/should-you-use-javascript-library-cdns
Luckily, C# has no C/C++-style preprocessor - only conditional compilation and pragmas (and possibly something else I cannot recall) are supported. Unfortunatelly, C# has no metaprogramming capabilities (this may actually relate to your question to some extent).
Why not use a list comprehension?
In Python 2
ran_floats = [random.uniform(low,high) for _ in xrange(size)]
In Python 3, range
works like xrange
(ref)
ran_floats = [random.uniform(low,high) for _ in range(size)]
Take a look at http://www.csharp-examples.net/download-files/ and msdn docs on webclient http://msdn.microsoft.com/en-us/library/system.net.webclient.aspx
My suggestion is try the synchronous download as its more straightforward. you might get ideas on whether webclient parameters are wrong or the file is in incorrect format while trying this.
Here is a code sample..
private void btnDownload_Click(object sender, EventArgs e)
{
string filepath = textBox1.Text;
WebClient webClient = new WebClient();
webClient.DownloadFileCompleted += new AsyncCompletedEventHandler(Completed);
webClient.DownloadProgressChanged += new DownloadProgressChangedEventHandler(ProgressChanged);
webClient.DownloadFileAsync(new Uri("http://mysite.com/myfile.txt"), filepath);
}
private void ProgressChanged(object sender, DownloadProgressChangedEventArgs e)
{
progressBar.Value = e.ProgressPercentage;
}
private void Completed(object sender, AsyncCompletedEventArgs e)
{
MessageBox.Show("Download completed!");
}
I've just got this working, so specifically, using the Groovy Postbuild plugin, you can do the following:
def paramText
def actionList = manager.build.getActions(hudson.model.ParametersAction)
if (actionList.size() != 0)
{
def pA = actionList.get(0)
paramText = pA.createVariableResolver(manager.build).resolve("MY_PARAM_NAME")
}
In Android Studio 1.2.1.1
Just copy the image and paste the image into the app > res > drawable folder and it will shows you "Choose Destination Directory" popup screen as shown below screen
Now you can select option whatever resolution you want to place and if you want to view the those image into the folders then simply right click on the drawable folder > select copy paths option and open it. It will help you.
You can also use this query
USE MASTER
GO
xp_readerrorlog 0, 1, N'Server is listening on'
GO
Source : sqlauthority blog
foreach($images as $key=>$image)
{
if($image == 'http://i27.tinypic.com/29ykt1f.gif' ||
$image == 'http://img3.abload.de/img/10nxjl0fhco.gif' ||
$image == 'http://i42.tinypic.com/9pp2tx.gif')
{ unset($images[$key]); }
}
!!foreach($images as $key=>$image
cause $image is the value, so $images[$image] make no sense.
I used below code and it's working fine for me. :
let jsonText = "{\"userName\":\"Bhavsang\"}"
var dictonary:NSDictionary?
if let data = jsonText.dataUsingEncoding(NSUTF8StringEncoding) {
do {
dictonary = try NSJSONSerialization.JSONObjectWithData(data, options: [.allowFragments]) as? [String:AnyObject]
if let myDictionary = dictonary
{
print(" User name is: \(myDictionary["userName"]!)")
}
} catch let error as NSError {
print(error)
}
}