Move script tag at the end of BODY instead of HEAD because in current code when the script is computed html element doesn't exist in document.
Since you don't want to you jquery. Use window.onload or document.onload to execute the entire piece of code that you have in current script tag. window.onload vs document.onload
Instant.now()
.toString()
2018-02-02T00:28:02.487114Z
Instant.parse(
"2018-02-02T00:28:02.487114Z"
)
The accepted Answer by ppeterka is correct. Your abuse of the formatting pattern results in an erroneous display of data, while the internal value is always limited milliseconds.
The troublesome SimpleDateFormat
and Date
classes you are using are now legacy, supplanted by the java.time classes. The java.time classes handle nanoseconds resolution, much finer than the milliseconds limit of the legacy classes.
The equivalent to java.util.Date
is java.time.Instant
. You can even convert between them using new methods added to the old classes.
Instant instant = myJavaUtilDate.toInstant() ;
The Instant
class represents a moment on the timeline in UTC with a resolution of nanoseconds (up to nine (9) digits of a decimal fraction).
Capture the current moment in UTC. Java 8 captures the current moment in milliseconds, while a new Clock
implementation in Java 9 captures the moment in finer granularity, typically microseconds though it depends on the capabilities of your computer hardware clock & OS & JVM implementation.
Instant instant = Instant.now() ;
Generate a String in standard ISO 8601 format.
String output = instant.toString() ;
2018-02-02T00:28:02.487114Z
To generate strings in other formats, search Stack Overflow for DateTimeFormatter
, already covered many times.
To adjust into a time zone other than UTC, use ZonedDateTime
.
ZonedDateTime zdt = instant.atZone( ZoneId.of( "Pacific/Auckland" ) ) ;
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date
, Calendar
, & SimpleDateFormat
.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
Where to obtain the java.time classes?
The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval
, YearWeek
, YearQuarter
, and more.
If you're interested in making .xlsx (Office 2007 and beyond) files, you're in luck. Office 2007+ uses OpenXML which for lack of a more apt description is XML files inside of a zip named .xlsx
Take an excel file (2007+) and rename it to .zip, you can open it up and take a look. If you're using .NET 3.5 you can use the System.IO.Packaging library to manipulate the relationships & zipfile itself, and linq to xml to play with the xml (or just DOM if you're more comfortable).
Otherwise id reccomend DotNetZip, a powerfull library for manipulation of zipfiles.
OpenXMLDeveloper has lots of resources about OpenXML and you can find more there.
If you want .xls (2003 and below) you're going to have to look into 3rd party libraries or perhaps learn the file format yourself to achieve this without excel installed.
In java 8 , It's really easy to get timestamp in UTC by using java 8 java.time.Instant library :
Instant.now();
That few word of code will return the UTC Timestamp.
Converting millis to datetime (UTC):
import datetime
time_in_millis = 1596542285000
dt = datetime.datetime.fromtimestamp(time_in_millis / 1000.0, tz=datetime.timezone.utc)
Converting datetime to string following the RFC3339 standard (used by Open API specification):
from rfc3339 import rfc3339
converted_to_str = rfc3339(dt, utc=True, use_system_timezone=False)
# 2020-08-04T11:58:05Z
function hex2a(hexx) {
var hex = hexx.toString();//force conversion
var str = '';
for (var i = 0; (i < hex.length && hex.substr(i, 2) !== '00'); i += 2)
str += String.fromCharCode(parseInt(hex.substr(i, 2), 16));
return str;
}
hex2a('32343630'); // returns '2460'
This is an old question, but I stumbled across it and thought I'd share the method I used:
var body = '<div id="anid">some <a href="link">text</a></div> and some more text';
var temp = document.createElement("div");
temp.innerHTML = body;
var sanitized = temp.textContent || temp.innerText;
sanitized
will now contain: "some text and some more text"
Simple, no jQuery needed, and it shouldn't let you down even in more complex cases.
If you want it as a string (for example, a 10-digit phone number) you can use this:
n = 10
''.join(["{}".format(randint(0, 9)) for num in range(0, n)])
I want to complete the answer from tchester.
(1) Enable the xp_cmdshell procedure:
-- To allow advanced options to be changed.
EXEC sp_configure 'show advanced options', 1
RECONFIGURE
GO
-- Enable the xp_cmdshell procedure
EXEC sp_configure 'xp_cmdshell', 1
RECONFIGURE
GO
(2) Create a login 'Domain\TestUser' (windows user) for the non-sysadmin user that has public access to the master database
(3) Grant EXEC permission on the xp_cmdshell stored procedure:
GRANT EXECUTE ON xp_cmdshell TO [Domain\TestUser]
(4) Create a proxy account that xp_cmdshell will be run under using sp_xp_cmdshell_proxy_account
EXEC sp_xp_cmdshell_proxy_account 'Domain\TestUser', 'pwd'
-- Note: pwd means windows password for [Domain\TestUser] account id on the box.
-- Don't include square brackets around Domain\TestUser.
(5) Grant control server permission to user
USE master;
GRANT CONTROL SERVER TO [Domain\TestUser]
GO
You can ask the Java Runtime:
public class MaxMemory {
public static void main(String[] args) {
Runtime rt = Runtime.getRuntime();
long totalMem = rt.totalMemory();
long maxMem = rt.maxMemory();
long freeMem = rt.freeMemory();
double megs = 1048576.0;
System.out.println ("Total Memory: " + totalMem + " (" + (totalMem/megs) + " MiB)");
System.out.println ("Max Memory: " + maxMem + " (" + (maxMem/megs) + " MiB)");
System.out.println ("Free Memory: " + freeMem + " (" + (freeMem/megs) + " MiB)");
}
}
This will report the "Max Memory" based upon default heap allocation. So you still would need to play with -Xmx
(on HotSpot). I found that running on Windows 7 Enterprise 64-bit, my 32-bit HotSpot JVM can allocate up to 1577MiB:
[C:scratch]> java -Xmx1600M MaxMemory Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. [C:scratch]> java -Xmx1590M MaxMemory Total Memory: 2031616 (1.9375 MiB) Max Memory: 1654456320 (1577.8125 MiB) Free Memory: 1840872 (1.75559234619 MiB) [C:scratch]>
Whereas with a 64-bit JVM on the same OS, of course it's much higher (about 3TiB)
[C:scratch]> java -Xmx3560G MaxMemory Error occurred during initialization of VM Could not reserve enough space for object heap [C:scratch]> java -Xmx3550G MaxMemory Total Memory: 94240768 (89.875 MiB) Max Memory: 3388252028928 (3184151.84297 MiB) Free Memory: 93747752 (89.4048233032 MiB) [C:scratch]>
As others have already mentioned, it depends on the OS.
For a 64-bit host OS, if the JVM is 32-bit, it'll still depend, most likely like above as demonstrated.
-- UPDATE 20110905: I just wanted to point out some other observations / details:
Runtime.MaxMemory
that can be allocated also depends on the operating system's working set. I once ran this while I also had VirtualBox running and found I could not successfully start the HotSpot JVM with -Xmx1590M
and had to go smaller. This also implies that you may get more than 1590M depending upon your working set size at the time (though I still maintain it'll be under 2GiB for 32-bit because of Windows' design)to chnage line endings from LF to CRLF:
open Sublime and follow the steps:-
1 press Ctrl+shift+p then install package name line unify endings
then again press Ctrl+shift+p
2 in the blank input box type "Line unify ending "
3 Hit enter twice
Sublime may freeze for sometimes and as a result will change the line endings from LF to CRLF
This macro does the whole job.
Sub Absolute_Reference_Copy_Paste()
'By changing "=" in formulas to "#" the content is no longer seen as a formula.
' C+S+e (my keyboard shortcut)
Dim Dummy As Range
Dim FirstSelection As Range
Dim SecondSelection As Range
Dim SheetFirst As Worksheet
Dim SheetSecond As Worksheet
On Error GoTo Whoa
Application.EnableEvents = False
' Set starting selection variable.
Set FirstSelection = Selection
Set SheetFirst = FirstSelection.Worksheet
' Reset the Find function so the scope of the search area is the current worksheet.
Set Dummy = Worksheets(1).Range("A1:A1").Find("Dummy", LookIn:=xlValues)
' Change "=" to "#" in selection.
Selection.Replace What:="=", Replacement:="#", LookAt:=xlPart, _
SearchOrder:=xlByRows, MatchCase:=False, SearchFormat:=False, ReplaceFormat:=False
' Select the area you want to paste the formulas; must be same size as original
selection and outside of the original selection.
Set SecondSelection = Application.InputBox("Select a range", "Obtain Range Object", Type:=8)
Set SheetSecond = SecondSelection.Worksheet
' Copy the original selection and paste it into the newly selected area. The active
selection remains FirstSelection.
FirstSelection.Copy SecondSelection
' Restore "=" in FirstSelection.
Selection.Replace What:="#", Replacement:="=", LookAt:=xlPart, _
SearchOrder:=xlByRows, MatchCase:=False, SearchFormat:=False, ReplaceFormat:=False
' Select SecondSelection.
SheetSecond.Activate
SecondSelection.Select
' Restore "=" in SecondSelection.
Selection.Replace What:="#", Replacement:="=", LookAt:=xlPart, _
SearchOrder:=xlByRows, MatchCase:=False, SearchFormat:=False, ReplaceFormat:=False
' Return active selection to the original area: FirstSelection.
SheetFirst.Activate
FirstSelection.Select
Application.EnableEvents = True
Exit Sub
Whoa:
' If something goes wrong after "=" has been changed in FirstSelection, restore "=".
FirstSelection.Select
Selection.Replace What:="#", Replacement:="=", LookAt:=xlPart, _
SearchOrder:=xlByRows, MatchCase:=False, SearchFormat:=False, ReplaceFormat:=False
End Sub
Note that you must match the size and shape of the original selection when you make your new selection.
The relationship Room
to Class
is considered weak (non-identifying) because the primary key components CID
and DATE
of entity Class
doesn't contain the primary key RID
of entity Room
(in this case primary key of Room entity is a single component, but even if it was a composite key, one component of it also fulfills the condition).
However, for instance, in the case of the relationship Class
and Class_Ins
we see that is a strong (identifying) relationship because the primary key components EmpID
and CID
and DATE
of Class_Ins
contains a component of the primary key Class
(in this case it contains both components CID
and DATE
).
Based on the previous answers and personnal experience, here is the code I use to monitor CPU use. The code of this class is written in pure Java.
import java.io.IOException;
import java.io.RandomAccessFile;
/**
* Utilities available only on Linux Operating System.
*
* <p>
* A typical use is to assign a thread to CPU monitoring:
* </p>
*
* <pre>
* @Override
* public void run() {
* while (CpuUtil.monitorCpu) {
*
* LinuxUtils linuxUtils = new LinuxUtils();
*
* int pid = android.os.Process.myPid();
* String cpuStat1 = linuxUtils.readSystemStat();
* String pidStat1 = linuxUtils.readProcessStat(pid);
*
* try {
* Thread.sleep(CPU_WINDOW);
* } catch (Exception e) {
* }
*
* String cpuStat2 = linuxUtils.readSystemStat();
* String pidStat2 = linuxUtils.readProcessStat(pid);
*
* float cpu = linuxUtils.getSystemCpuUsage(cpuStat1, cpuStat2);
* if (cpu >= 0.0f) {
* _printLine(mOutput, "total", Float.toString(cpu));
* }
*
* String[] toks = cpuStat1.split(" ");
* long cpu1 = linuxUtils.getSystemUptime(toks);
*
* toks = cpuStat2.split(" ");
* long cpu2 = linuxUtils.getSystemUptime(toks);
*
* cpu = linuxUtils.getProcessCpuUsage(pidStat1, pidStat2, cpu2 - cpu1);
* if (cpu >= 0.0f) {
* _printLine(mOutput, "" + pid, Float.toString(cpu));
* }
*
* try {
* synchronized (this) {
* wait(CPU_REFRESH_RATE);
* }
* } catch (InterruptedException e) {
* e.printStackTrace();
* return;
* }
* }
*
* Log.i("THREAD CPU", "Finishing");
* }
* </pre>
*/
public final class LinuxUtils {
// Warning: there appears to be an issue with the column index with android linux:
// it was observed that on most present devices there are actually
// two spaces between the 'cpu' of the first column and the value of
// the next column with data. The thing is the index of the idle
// column should have been 4 and the first column with data should have index 1.
// The indexes defined below are coping with the double space situation.
// If your file contains only one space then use index 1 and 4 instead of 2 and 5.
// A better way to deal with this problem may be to use a split method
// not preserving blanks or compute an offset and add it to the indexes 1 and 4.
private static final int FIRST_SYS_CPU_COLUMN_INDEX = 2;
private static final int IDLE_SYS_CPU_COLUMN_INDEX = 5;
/** Return the first line of /proc/stat or null if failed. */
public String readSystemStat() {
RandomAccessFile reader = null;
String load = null;
try {
reader = new RandomAccessFile("/proc/stat", "r");
load = reader.readLine();
} catch (IOException ex) {
ex.printStackTrace();
} finally {
Streams.close(reader);
}
return load;
}
/**
* Compute and return the total CPU usage, in percent.
*
* @param start
* first content of /proc/stat. Not null.
* @param end
* second content of /proc/stat. Not null.
* @return 12.7 for a CPU usage of 12.7% or -1 if the value is not
* available.
* @see {@link #readSystemStat()}
*/
public float getSystemCpuUsage(String start, String end) {
String[] stat = start.split("\\s");
long idle1 = getSystemIdleTime(stat);
long up1 = getSystemUptime(stat);
stat = end.split("\\s");
long idle2 = getSystemIdleTime(stat);
long up2 = getSystemUptime(stat);
// don't know how it is possible but we should care about zero and
// negative values.
float cpu = -1f;
if (idle1 >= 0 && up1 >= 0 && idle2 >= 0 && up2 >= 0) {
if ((up2 + idle2) > (up1 + idle1) && up2 >= up1) {
cpu = (up2 - up1) / (float) ((up2 + idle2) - (up1 + idle1));
cpu *= 100.0f;
}
}
return cpu;
}
/**
* Return the sum of uptimes read from /proc/stat.
*
* @param stat
* see {@link #readSystemStat()}
*/
public long getSystemUptime(String[] stat) {
/*
* (from man/5/proc) /proc/stat kernel/system statistics. Varies with
* architecture. Common entries include: cpu 3357 0 4313 1362393
*
* The amount of time, measured in units of USER_HZ (1/100ths of a
* second on most architectures, use sysconf(_SC_CLK_TCK) to obtain the
* right value), that the system spent in user mode, user mode with low
* priority (nice), system mode, and the idle task, respectively. The
* last value should be USER_HZ times the second entry in the uptime
* pseudo-file.
*
* In Linux 2.6 this line includes three additional columns: iowait -
* time waiting for I/O to complete (since 2.5.41); irq - time servicing
* interrupts (since 2.6.0-test4); softirq - time servicing softirqs
* (since 2.6.0-test4).
*
* Since Linux 2.6.11, there is an eighth column, steal - stolen time,
* which is the time spent in other operating systems when running in a
* virtualized environment
*
* Since Linux 2.6.24, there is a ninth column, guest, which is the time
* spent running a virtual CPU for guest operating systems under the
* control of the Linux kernel.
*/
// with the following algorithm, we should cope with all versions and
// probably new ones.
long l = 0L;
for (int i = FIRST_SYS_CPU_COLUMN_INDEX; i < stat.length; i++) {
if (i != IDLE_SYS_CPU_COLUMN_INDEX ) { // bypass any idle mode. There is currently only one.
try {
l += Long.parseLong(stat[i]);
} catch (NumberFormatException ex) {
ex.printStackTrace();
return -1L;
}
}
}
return l;
}
/**
* Return the sum of idle times read from /proc/stat.
*
* @param stat
* see {@link #readSystemStat()}
*/
public long getSystemIdleTime(String[] stat) {
try {
return Long.parseLong(stat[IDLE_SYS_CPU_COLUMN_INDEX]);
} catch (NumberFormatException ex) {
ex.printStackTrace();
}
return -1L;
}
/** Return the first line of /proc/pid/stat or null if failed. */
public String readProcessStat(int pid) {
RandomAccessFile reader = null;
String line = null;
try {
reader = new RandomAccessFile("/proc/" + pid + "/stat", "r");
line = reader.readLine();
} catch (IOException ex) {
ex.printStackTrace();
} finally {
Streams.close(reader);
}
return line;
}
/**
* Compute and return the CPU usage for a process, in percent.
*
* <p>
* The parameters {@code totalCpuTime} is to be the one for the same period
* of time delimited by {@code statStart} and {@code statEnd}.
* </p>
*
* @param start
* first content of /proc/pid/stat. Not null.
* @param end
* second content of /proc/pid/stat. Not null.
* @return the CPU use in percent or -1f if the stats are inverted or on
* error
* @param uptime
* sum of user and kernel times for the entire system for the
* same period of time.
* @return 12.7 for a cpu usage of 12.7% or -1 if the value is not available
* or an error occurred.
* @see {@link #readProcessStat(int)}
*/
public float getProcessCpuUsage(String start, String end, long uptime) {
String[] stat = start.split("\\s");
long up1 = getProcessUptime(stat);
stat = end.split("\\s");
long up2 = getProcessUptime(stat);
float ret = -1f;
if (up1 >= 0 && up2 >= up1 && uptime > 0.) {
ret = 100.f * (up2 - up1) / (float) uptime;
}
return ret;
}
/**
* Decode the fields of the file {@code /proc/pid/stat} and return (utime +
* stime)
*
* @param stat
* obtained with {@link #readProcessStat(int)}
*/
public long getProcessUptime(String[] stat) {
return Long.parseLong(stat[14]) + Long.parseLong(stat[15]);
}
/**
* Decode the fields of the file {@code /proc/pid/stat} and return (cutime +
* cstime)
*
* @param stat
* obtained with {@link #readProcessStat(int)}
*/
public long getProcessIdleTime(String[] stat) {
return Long.parseLong(stat[16]) + Long.parseLong(stat[17]);
}
/**
* Return the total CPU usage, in percent.
* <p>
* The call is blocking for the time specified by elapse.
* </p>
*
* @param elapse
* the time in milliseconds between reads.
* @return 12.7 for a CPU usage of 12.7% or -1 if the value is not
* available.
*/
public float syncGetSystemCpuUsage(long elapse) {
String stat1 = readSystemStat();
if (stat1 == null) {
return -1.f;
}
try {
Thread.sleep(elapse);
} catch (Exception e) {
}
String stat2 = readSystemStat();
if (stat2 == null) {
return -1.f;
}
return getSystemCpuUsage(stat1, stat2);
}
/**
* Return the CPU usage of a process, in percent.
* <p>
* The call is blocking for the time specified by elapse.
* </p>
*
* @param pid
* @param elapse
* the time in milliseconds between reads.
* @return 6.32 for a CPU usage of 6.32% or -1 if the value is not
* available.
*/
public float syncGetProcessCpuUsage(int pid, long elapse) {
String pidStat1 = readProcessStat(pid);
String totalStat1 = readSystemStat();
if (pidStat1 == null || totalStat1 == null) {
return -1.f;
}
try {
Thread.sleep(elapse);
} catch (Exception e) {
e.printStackTrace();
return -1.f;
}
String pidStat2 = readProcessStat(pid);
String totalStat2 = readSystemStat();
if (pidStat2 == null || totalStat2 == null) {
return -1.f;
}
String[] toks = totalStat1.split("\\s");
long cpu1 = getSystemUptime(toks);
toks = totalStat2.split("\\s");
long cpu2 = getSystemUptime(toks);
return getProcessCpuUsage(pidStat1, pidStat2, cpu2 - cpu1);
}
}
There are several ways of exploiting this class. You can call either syncGetSystemCpuUsage
or syncGetProcessCpuUsage
but each is blocking the calling thread. Since a common issue is to monitor the total CPU usage and the CPU use of the current process at the same time, I have designed a class computing both of them. That class contains a dedicated thread. The output management is implementation specific and you need to code your own.
The class can be customized by a few means. The constant CPU_WINDOW
defines the depth of a read, i.e. the number of milliseconds between readings and computing of the corresponding CPU load. CPU_REFRESH_RATE
is the time between each CPU load measurement. Do not set CPU_REFRESH_RATE
to 0 because it will suspend the thread after the first read.
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.OutputStream;
import android.app.Application;
import android.os.Handler;
import android.os.HandlerThread;
import android.util.Log;
import my.app.LinuxUtils;
import my.app.Streams;
import my.app.TestReport;
import my.app.Utils;
public final class CpuUtil {
private static final int CPU_WINDOW = 1000;
private static final int CPU_REFRESH_RATE = 100; // Warning: anything but > 0
private static HandlerThread handlerThread;
private static TestReport output;
static {
output = new TestReport();
output.setDateFormat(Utils.getDateFormat(Utils.DATE_FORMAT_ENGLISH));
}
private static boolean monitorCpu;
/**
* Construct the class singleton. This method should be called in
* {@link Application#onCreate()}
*
* @param dir
* the parent directory
* @param append
* mode
*/
public static void setOutput(File dir, boolean append) {
try {
File file = new File(dir, "cpu.txt");
output.setOutputStream(new FileOutputStream(file, append));
if (!append) {
output.println(file.getAbsolutePath());
output.newLine(1);
// print header
_printLine(output, "Process", "CPU%");
output.flush();
}
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
/** Start CPU monitoring */
public static boolean startCpuMonitoring() {
CpuUtil.monitorCpu = true;
handlerThread = new HandlerThread("CPU monitoring"); //$NON-NLS-1$
handlerThread.start();
Handler handler = new Handler(handlerThread.getLooper());
handler.post(new Runnable() {
@Override
public void run() {
while (CpuUtil.monitorCpu) {
LinuxUtils linuxUtils = new LinuxUtils();
int pid = android.os.Process.myPid();
String cpuStat1 = linuxUtils.readSystemStat();
String pidStat1 = linuxUtils.readProcessStat(pid);
try {
Thread.sleep(CPU_WINDOW);
} catch (Exception e) {
}
String cpuStat2 = linuxUtils.readSystemStat();
String pidStat2 = linuxUtils.readProcessStat(pid);
float cpu = linuxUtils
.getSystemCpuUsage(cpuStat1, cpuStat2);
if (cpu >= 0.0f) {
_printLine(output, "total", Float.toString(cpu));
}
String[] toks = cpuStat1.split(" ");
long cpu1 = linuxUtils.getSystemUptime(toks);
toks = cpuStat2.split(" ");
long cpu2 = linuxUtils.getSystemUptime(toks);
cpu = linuxUtils.getProcessCpuUsage(pidStat1, pidStat2,
cpu2 - cpu1);
if (cpu >= 0.0f) {
_printLine(output, "" + pid, Float.toString(cpu));
}
try {
synchronized (this) {
wait(CPU_REFRESH_RATE);
}
} catch (InterruptedException e) {
e.printStackTrace();
return;
}
}
Log.i("THREAD CPU", "Finishing");
}
});
return CpuUtil.monitorCpu;
}
/** Stop CPU monitoring */
public static void stopCpuMonitoring() {
if (handlerThread != null) {
monitorCpu = false;
handlerThread.quit();
handlerThread = null;
}
}
/** Dispose of the object and release the resources allocated for it */
public void dispose() {
monitorCpu = false;
if (output != null) {
OutputStream os = output.getOutputStream();
if (os != null) {
Streams.close(os);
output.setOutputStream(null);
}
output = null;
}
}
private static void _printLine(TestReport output, String process, String cpu) {
output.stampln(process + ";" + cpu);
}
}
To get the path of all images in android I am using following code
public void allImages()
{
ContentResolver cr = getContentResolver();
Cursor cursor;
Uri allimagessuri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
String selection = MediaStore.Images.Media._ID + " != 0";
cursor = cr.query(allsongsuri, STAR, selection, null, null);
if (cursor != null) {
if (cursor.moveToFirst()) {
do {
String fullpath = cursor.getString(cursor
.getColumnIndex(MediaStore.Images.Media.DATA));
Log.i("Image path ", fullpath + "");
} while (cursor.moveToNext());
}
cursor.close();
}
}
To install pip globally on Python 2.x, easy_install appears to be the best solution as Adrián states.
However the installation instructions for pip recommend using virtualenv since every virtualenv has pip installed in it automatically. This does not require root access or modify your system Python installation.
Installing virtualenv still requires easy_install though.
2018 update:
Python 3.3+ now includes the venv module for easily creating virtual environments like so:
python3 -m venv /path/to/new/virtual/environment
See documentation for different platform methods of activating the environment after creation, but typically one of:
$ source <venv>/bin/activate
C:\> <venv>\Scripts\activate.bat
See TRY...CATCH (Transact-SQL)
CREATE PROCEDURE [dbo].[PL_GEN_PROVN_NO1]
@GAD_COMP_CODE VARCHAR(2) =NULL,
@@voucher_no numeric =null output
AS
BEGIN
begin try
-- your proc code
end try
begin catch
-- what you want to do in catch
end catch
END -- proc end
One thing to ensure is that nothing can reassign your variable. If it is not a Boolean in the end, relying on truthiness will lead to bugs. The beauty of conditional programming in dynamically typed languages :).
The following prints "no".
x = False
if x:
print 'yes'
else:
print 'no'
Now let's change x.
x = 'False'
Now the statement prints "yes", because the string is truthy.
if x:
print 'yes'
else:
print 'no'
This statement, however, correctly outputs "no".
if x == True:
print 'yes'
else:
print 'no'
You shouldn't edit it, you should completely scrap it.
Any attempt to make execution stop for a certain amount of time will lock up the browser and switch it to a Not Responding state. The only thing you can do is use setTimeout
correctly.
Reference:https://docs.microsoft.com/en-us/sql/t-sql/functions/newid-transact-sql?view=sql-server-2017
-- Creating a table using NEWID for uniqueidentifier data type.
CREATE TABLE cust
(
CustomerID uniqueidentifier NOT NULL
DEFAULT newid(),
Company varchar(30) NOT NULL,
ContactName varchar(60) NOT NULL,
Address varchar(30) NOT NULL,
City varchar(30) NOT NULL,
StateProvince varchar(10) NULL,
PostalCode varchar(10) NOT NULL,
CountryRegion varchar(20) NOT NULL,
Telephone varchar(15) NOT NULL,
Fax varchar(15) NULL
);
GO
-- Inserting 5 rows into cust table.
INSERT cust
(CustomerID, Company, ContactName, Address, City, StateProvince,
PostalCode, CountryRegion, Telephone, Fax)
VALUES
(NEWID(), 'Wartian Herkku', 'Pirkko Koskitalo', 'Torikatu 38', 'Oulu', NULL,
'90110', 'Finland', '981-443655', '981-443655')
,(NEWID(), 'Wellington Importadora', 'Paula Parente', 'Rua do Mercado, 12', 'Resende', 'SP',
'08737-363', 'Brasil', '(14) 555-8122', '')
,(NEWID(), 'Cactus Comidas para Ilevar', 'Patricio Simpson', 'Cerrito 333', 'Buenos Aires', NULL,
'1010', 'Argentina', '(1) 135-5555', '(1) 135-4892')
,(NEWID(), 'Ernst Handel', 'Roland Mendel', 'Kirchgasse 6', 'Graz', NULL,
'8010', 'Austria', '7675-3425', '7675-3426')
,(NEWID(), 'Maison Dewey', 'Catherine Dewey', 'Rue Joseph-Bens 532', 'Bruxelles', NULL,
'B-1180', 'Belgium', '(02) 201 24 67', '(02) 201 24 68');
GO
Use BigDecimal.valueOf(double d)
instead of new BigDecimal(double d)
. The last one has precision errors by float and double.
I have added toArray()
after pluck
$items = Item::get()->pluck('name', 'id')->toArray();
{{ Form::select('item_id', [null=>'Please Select'] + $items) }}
Add this two line in your style.xml
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
SVG 1.2 Tiny has viewport-fill I'm not sure how widely implemented this property is though as most browsers are targetting SVG 1.1 at this time. Opera implements it FWIW.
A more cross-browser solution currently would be to stick a <rect>
element with width and height of 100% and fill="red" as the first child of the <svg>
element, for example:
<rect width="100%" height="100%" fill="red"/>
To make your life easier and avoid the Anonymous Class in setOnClicklistener (), implement a View.OnClicklistener Interface as below:
public class YourClass extends CommonActivity implements View.OnClickListener, ...
this avoids:
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
yourMethod(v);
}
});
and goes directly to:
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.your_view:
yourMethod();
break;
}
}
Cern's ROOT produces some pretty nice stuff, I use it to display Neural Network data a lot.
See http://adamalbrecht.com/2013/12/12/creating-a-simple-modal-dialog-directive-in-angular-js/ for a simple way of doing modal dialog with Angular and without needing bootstrap
Edit: I've since been using ng-dialog from http://likeastore.github.io/ngDialog which is flexible and doesn't have any dependencies.
i think the setTimeout function that you write is not being run. if you use jquery, you can make it run correctly by doing this :
function alertMsg() {
//your func
}
$(document).ready(function() {
setTimeout(alertMsg,3000);
// the function you called by setTimeout must not be a string.
});
If its a get request use, $_GET['subject']
or if its a post request use, $_POST['subject']
Update 26/03/2016:
Instead of a link in the bottom right corner of the Settings form, the delete button is moved to the top right corner, saying:
Move To Trash Can
When you click on it, it will ask you for confirmation and move it to Trash Can
.
The answer is really simple
// Your HTML text field
<input type="text" name="name" id="txt">
//Your javascript
<script type="text/javascript">
document.getElementById("txt").value = "My default value";
</script>
Or if you want to avoid JavaScript entirely: You can define it just using HTML
<input type="text" name="name" id="txt" value="My default value">
You can also do it using phpmyadmin. Just select the table than go to actions. And change the Auto increment below table options. Don't forget to click on start
A jar file is simply a file containing a collection of java files. To make a jar file executable, you need to specify where the main
Class is in the jar file. Example code would be as follows.
public class JarExample {
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
// your logic here
}
});
}
}
Compile your classes. To make a jar, you also need to create a Manifest File (MANIFEST.MF
). For example,
Manifest-Version: 1.0
Main-Class: JarExample
Place the compiled output class files (JarExample.class,JarExample$1.class) and the manifest file in the same folder. In the command prompt, go to the folder where your files placed, and create the jar using jar command. For example (if you name your manifest file as jexample.mf)
jar cfm jarexample.jar jexample.mf *.class
It will create executable jarexample.jar.
Under Security, add the principal as a "SQL user without login", make it own the schema with the same name as the principal and then in Membership make it db_owner.
I gathered all what others have suggested and created following function which has 3 arguments, the number and the base which that number has come from and the base which that number is going to be on:
changeBase(1101000, 2, 10) => 104
Run Code Snippet to try it yourself:
function changeBase(number, fromBase, toBase) {_x000D_
if (fromBase == 10)_x000D_
return (parseInt(number)).toString(toBase)_x000D_
else if (toBase == 10)_x000D_
return parseInt(number, fromBase);_x000D_
else{_x000D_
var numberInDecimal = parseInt(number, fromBase);_x000D_
return (parseInt(numberInDecimal)).toString(toBase);_x000D_
}_x000D_
}_x000D_
_x000D_
$("#btnConvert").click(function(){_x000D_
var number = $("#txtNumber").val(),_x000D_
fromBase = $("#txtFromBase").val(),_x000D_
toBase = $("#txtToBase").val();_x000D_
$("#lblResult").text(changeBase(number, fromBase, toBase));_x000D_
});
_x000D_
#lblResult{_x000D_
padding: 20px;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<input id="txtNumber" type="text" placeholder="Number" />_x000D_
<input id="txtFromBase" type="text" placeholder="From Base" />_x000D_
<input id="txtToBase" type="text" placeholder="To Base" />_x000D_
<input id="btnConvert" type="button" value="Convert" />_x000D_
<span id="lblResult"></span>_x000D_
_x000D_
<p>Hint: <br />_x000D_
Try 110, 2, 10 and it will return 6; (110)<sub>2</sub> = 6<br />_x000D_
_x000D_
or 2d, 16, 10 => 45 meaning: (2d)<sub>16</sub> = 45<br />_x000D_
or 45, 10, 16 => 2d meaning: 45 = (2d)<sub>16</sub><br />_x000D_
or 2d, 2, 16 => 2d meaning: (101101)<sub>2</sub> = (2d)<sub>16</sub><br />_x000D_
</p>
_x000D_
FYI: If you want to pass 2d as hex number, you need to send it as a string so it goes like this:
changeBase('2d', 16, 10)
Here is a nifty solution with a filter:
app.filter('status', function() {
var statusDict = {
0: "No payment",
1: "Late",
2: "Late",
3: "Some payment made",
4: "Some payment made",
5: "Some payment made",
6: "Late and further taken out"
};
return function(status) {
return statusDict[status] || 'Error';
};
});
Markup:
<div ng-repeat="details in myDataSet">
<p>{{ details.Name }}</p>
<p>{{ details.DOB }}</p>
<p>{{ details.Payment[0].Status | status }}</p>
<p>{{ details.Gender}}</p>
</div>
You can use a LINQ query to do this. This will query everything on the form that is type TextBox
var c = from controls in this.Controls.OfType<TextBox>()
select controls;
I ran into a similar error
"from: can't read /var/mail/django.test.utils"
when trying to run a command
>>> from django.test.utils import setup_test_environment
>>> setup_test_environment()
in the tutorial at https://docs.djangoproject.com/en/1.8/intro/tutorial05/
after reading the answer by Tamás I realized I was not trying this command in the python shell but in the termnial (this can happen to those new to linux)
solution was to first enter in the python shell with the command python and when you get these >>> then run any python commands
As Dennis says, you can't control how the browser chooses to handle target=_blank.
If you're wondering about the inconsistent behavior, probably it's pop-up blocking. Many browsers will forbid new windows from being opened apropos of nothing, but will allow new windows to be spawned as the eventual result of a mouse-click event.
You need to declare a table type which contains the same number of columns your store procedure is returning. Data types of the columns in the table type and the columns returned by the procedures should be same
declare @MyTableType as table
(
FIRSTCOLUMN int
,.....
)
Then you need to insert the result of your stored procedure in your table type you just defined
Insert into @MyTableType
EXEC [dbo].[MyStoredProcedure]
In the end just select from your table type
Select * from @MyTableType
If this is really slow, I suspect you're dealing with a large archive file. It's going to uncompress it once to extract the file list, and then uncompress it N times--where N is the number of files in the archive--for the grep. In addition to all the uncompressing, it's going to have to scan a fair bit into the archive each time to extract each file. One of tar
's biggest drawbacks is that there is no table of contents at the beginning. There's no efficient way to get information about all the files in the archive and only read that portion of the file. It essentially has to read all of the file up to the thing you're extracting every time; it can't just jump to a filename's location right away.
The easiest thing you can do to speed this up would be to uncompress the file first (gunzip file.tar.gz
) and then work on the .tar
file. That might help enough by itself. It's still going to loop through the entire archive N times, though.
If you really want this to be efficient, your only option is to completely extract everything in the archive before processing it. Since your problem is speed, I suspect this is a giant file that you don't want to extract first, but if you can, this will speed things up a lot:
tar zxf file.tar.gz
for f in hopefullySomeSubdir/*; do
grep -l "string" $f
done
Note that grep -l
prints the name of any matching file, quits after the first match, and is silent if there's no match. That alone will speed up the grepping portion of your command, so even if you don't have the space to extract the entire archive, grep -l
will help. If the files are huge, it will help a lot.
In some devices void onConfigurationChanged()
may crash. User will use this code to get current screen orientation.
public int getScreenOrientation()
{
Display getOrient = getActivity().getWindowManager().getDefaultDisplay();
int orientation = Configuration.ORIENTATION_UNDEFINED;
if(getOrient.getWidth()==getOrient.getHeight()){
orientation = Configuration.ORIENTATION_SQUARE;
} else{
if(getOrient.getWidth() < getOrient.getHeight()){
orientation = Configuration.ORIENTATION_PORTRAIT;
}else {
orientation = Configuration.ORIENTATION_LANDSCAPE;
}
}
return orientation;
}
And use
if (orientation==1) // 1 for Configuration.ORIENTATION_PORTRAIT
{ // 2 for Configuration.ORIENTATION_LANDSCAPE
//your code // 0 for Configuration.ORIENTATION_SQUARE
}
Running these commands worked for me:
npm cache clean --force
npm rebuild
npm install
<a href="#">
<img src="p.png"></img>
</a>
scp -r C:/site user@server_ip:path
path
is the place, where site
will be copied into the remote server
EDIT: As I said in my comment, try pscp
, as you want to use scp
using PuTTY
.
The other option is WinSCP
It seems to work fine in Google Chrome. Which browser are you using? Here the proof http://jsfiddle.net/CN8XL/
Anyhow you can also access to the input value parameter through the document.FormName.checkyear.value
. You have to wrap in the input in a <form>
tag like with the proper name
attribute, like shown below:
<form name="FormName">
<input type="hidden" name="checkyear" id="checkyear" value="">
</form>
Have you considered using the jQuery Library? Here are the docs for .val()
function.
One of the reasons for this error is the use of the jaxb implementation from the jdk. I am not sure why such a problem can appear in pretty simple xml parsing situations. You may use the latest version of the jaxb library from a public maven repository:
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.2.12</version>
</dependency>
int min and max values
Int -2,147,483,648 / 2,147,483,647 Int 64 -9,223,372,036,854,775,808 / 9,223,372,036,854,775,807
i guess you could set a to equal 9,223,372,036,854,775,807 but it would need to be an int64
if you always want a to be grater that b why do you need to check it? just set it to be true always
df =df['Date'].dt.dayofweek
dayofweek
is in numeric format
std::map::find
returns an iterator to the found element (or to the end()
if the element was not found). So long as the map
is not const, you can modify the element pointed to by the iterator:
std::map<char, int> m;
m.insert(std::make_pair('c', 0)); // c is for cookie
std::map<char, int>::iterator it = m.find('c');
if (it != m.end())
it->second = 42;
If you are working with Source safe then make a new directory and take the latest there, this solved my issue...thanks
I create a common init for the designated and required. For convenience inits I delegate to init(frame:)
with frame of zero.
Having zero frame is not a problem because typically the view is inside a ViewController's view; your custom view will get a good, safe chance to layout its subviews when its superview calls layoutSubviews()
or updateConstraints()
. These two functions are called by the system recursively throughout the view hierarchy. You can use either updateContstraints()
or layoutSubviews()
. updateContstraints()
is called first, then layoutSubviews()
. In updateConstraints()
make sure to call super last. In layoutSubviews()
, call super first.
Here's what I do:
@IBDesignable
class MyView: UIView {
convenience init(args: Whatever) {
self.init(frame: CGRect.zero)
//assign custom vars
}
override init(frame: CGRect) {
super.init(frame: frame)
commonInit()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
commonInit()
}
override func prepareForInterfaceBuilder() {
super.prepareForInterfaceBuilder()
commonInit()
}
private func commonInit() {
//custom initialization
}
override func updateConstraints() {
//set subview constraints here
super.updateConstraints()
}
override func layoutSubviews() {
super.layoutSubviews()
//manually set subview frames here
}
}
I had the exact same symptom, and this was my problem, very tricky to track down, so I hope it helps someone.
I was using JQuery parseJSON()
and the content I was attempting to parse was actually not JSON, but an error page that was being returned.
This code sends array of integer values
Initialize array List
List<Integer> test = new ArrayList<Integer>();
Add values to array List
test.add(1);
test.add(2);
test.add(3);
Intent intent=new Intent(this, targetActivty.class);
Send the array list values to target activity
intent.putIntegerArrayListExtra("test", (ArrayList<Integer>) test);
startActivity(intent);
here you get values on targetActivty
Intent intent=getIntent();
ArrayList<String> test = intent.getStringArrayListExtra("test");
As an unordered collection type, set([8, 1, 6])
is equivalent to set([1, 6, 8])
.
While it might be nicer to display the set contents in sorted order, that would make the repr()
call more expensive.
Internally, the set
type is implemented using a hash table: a hash function is used to separate items into a number of buckets to reduce the number of equality operations needed to check if an item is part of the set.
To produce the repr()
output it just outputs the items from each bucket in turn, which is unlikely to be the sorted order.
lid -g groupname | cut -f1 -d'('
From .NET 4.5 on, there is the Stream.CopyToAsync
method
input.CopyToAsync(output);
This will return a Task
that can be continued on when completed, like so:
await input.CopyToAsync(output)
// Code from here on will be run in a continuation.
Note that depending on where the call to CopyToAsync
is made, the code that follows may or may not continue on the same thread that called it.
The SynchronizationContext
that was captured when calling await
will determine what thread the continuation will be executed on.
Additionally, this call (and this is an implementation detail subject to change) still sequences reads and writes (it just doesn't waste a threads blocking on I/O completion).
From .NET 4.0 on, there's is the Stream.CopyTo
method
input.CopyTo(output);
For .NET 3.5 and before
There isn't anything baked into the framework to assist with this; you have to copy the content manually, like so:
public static void CopyStream(Stream input, Stream output)
{
byte[] buffer = new byte[32768];
int read;
while ((read = input.Read(buffer, 0, buffer.Length)) > 0)
{
output.Write (buffer, 0, read);
}
}
Note 1: This method will allow you to report on progress (x bytes read so far ...)
Note 2: Why use a fixed buffer size and not input.Length
? Because that Length may not be available! From the docs:
If a class derived from Stream does not support seeking, calls to Length, SetLength, Position, and Seek throw a NotSupportedException.
I wasn't having any luck with the above answers (including --flat
), but what worked for me was:
cd path/to/specific/directory
From there, I ran the ng g c mynewcomponent
Find the <SHA#>
for the commit you want to go. You can find it in github or by typing git log
or git reflog show
at the command line and then do
git reset --hard <SHA#>
In your case, you need to use Sprintf() for format string.
func Sprintf(format string, a ...interface{}) string
Sprintf formats according to a format specifier and returns the resulting string.
s := fmt.Sprintf("Good Morning, This is %s and I'm living here from last %d years ", "John", 20)
Your output will be :
Good Morning, This is John and I'm living here from last 20 years.
Press ?S or go to File > Save screenshot from your simulator menu and you will get the screenshot saved on your desktop.
What worked for me is setting the height to 100% the having the overflow on auto hope this will help
<div style="height: 100%;overflow-y: auto;"> Some text o othre div scroll </div>
You can also check the version with this command:
npm info <package name> version
This code worked for me
public static void main(String[] args) {
try {
java.net.URL myUr = new java.net.URL("http://path");
System.out.println("Instantiated new URL: " + connection_url);
}
catch (MalformedURLException e) {
e.printStackTrace();
}
}
Instantiated new URL: http://path
Ruby 2.4.0 is released, and it has an Enumerable#sum method. So you can do
array.sum
Examples from the docs:
{ 1 => 10, 2 => 20 }.sum {|k, v| k * v } #=> 50
(1..10).sum #=> 55
(1..10).sum {|v| v * 2 } #=> 110
behaves as an inline-block element as it allows other images in same line i.e. inline and also we can change the width and height of the image and this is the property of a block element. Hence, provide both the features of inline and block elements.
The basic difference between all these annotations is as follows -
All these annotations along with the usage is defined on Codingeek - Junit5 Test Lifecycle
What is this? :)
background-color: #D8F0DA;
Try
background: none
And override works only if property is exactly the same.
background doesn't override background-color.
If you want alpha transparency, then use something like this
background: rgba(100, 100, 100, 0.5);
import/export
is now doing the job with ES6. I still tend to prefix not exported functions with _
if most of my functions are exported.
If you export only a class (like in angular projects), it's not needed at all.
export class MyOpenClass{
open(){
doStuff()
this._privateStuff()
return close();
}
_privateStuff() { /* _ only as a convention */}
}
function close(){ /*... this is really private... */ }
No Problem You can use onClick()
function easily without using any other interference of language,
<?php
echo '<br><Button onclick="document.getElementById(';?>'modal-wrapper2'<?php echo ').style.display=';?>'block'<?php echo '" name="comment" style="width:100px; color: white;background-color: black;border-radius: 10px; padding: 4px;">Show</button>';
?>
Using alias for referencing the tables to get the columns from different tables after joining them.
Select tb1.*, tb2.col1, tb2.col2 from table1 tb1 JOIN table2 tb2 on tb1.Id = tb2.Id
You can use a fieldset tag.
<!DOCTYPE html>_x000D_
<html>_x000D_
<body>_x000D_
_x000D_
<form>_x000D_
<fieldset>_x000D_
<legend>Personalia:</legend>_x000D_
Name: <input type="text"><br>_x000D_
Email: <input type="text"><br>_x000D_
Date of birth: <input type="text">_x000D_
</fieldset>_x000D_
</form>_x000D_
_x000D_
</body>_x000D_
</html>
_x000D_
Check this link: HTML Tag
You can't easily use a range here because the iterator you get from a map refers to a std::pair, where the iterators you would use to insert into a vector refers to an object of the type stored in the vector, which is (if you are discarding the key) not a pair.
I really don't think it gets much cleaner than the obvious:
#include <map>
#include <vector>
#include <string>
using namespace std;
int main() {
typedef map <string, int> MapType;
MapType m;
vector <int> v;
// populate map somehow
for( MapType::iterator it = m.begin(); it != m.end(); ++it ) {
v.push_back( it->second );
}
}
which I would probably re-write as a template function if I was going to use it more than once. Something like:
template <typename M, typename V>
void MapToVec( const M & m, V & v ) {
for( typename M::const_iterator it = m.begin(); it != m.end(); ++it ) {
v.push_back( it->second );
}
}
PROCESSOR_ARCHITECTURE=x86
Will appear on Win32, and
PROCESSOR_ARCHITECTURE=AMD64
will appear for Win64.
If you are perversely running the 32-bit cmd.exe
process then Windows presents two environment variables:
PROCESSOR_ARCHITECTURE=x86
PROCESSOR_ARCHITEW6432=AMD64
I ran across this issue today working with a clients program. The program works FINE in VS6.0 using the following: (I've changed it slightly)
//
// This is the one include file that every user-written Nextest programs needs.
// Patcom-generated files will also look for this file.
//
#include "stdio.h"
#define IS_NONE( a_key ) ( ( a_key == "none" || a_key == "N/A" ) ? TRUE : FALSE )
//
// Note in my environment we have output() which is printf which adds /n at the end
//
main {
char *psNameNone = "none";
char *psNameNA = "N/A";
char *psNameCAT = "CAT";
if (IS_NONE(psNameNone) ) {
output("psNameNone Matches NONE");
output("%s psNameNoneAddr 0x%x \"none\" addr 0x%X",
psNameNone,psNameNone,
"none");
} else {
output("psNameNone Does Not Match None");
output("%s psNameNoneAddr 0x%x \"none\" addr 0x%X",
psNameNone,psNameNone,
"none");
}
if (IS_NONE(psNameNA) ) {
output("psNameNA Matches N/A");
output("%s psNameNA 0x%x \"N/A\" addr 0x%X",
psNameNA,psNameNA,
"N/A");
} else {
output("psNameNone Does Not Match N/A");
output("%s psNameNA 0x%x \"N/A\" addr 0x%X",
psNameNA,psNameNA,
"N/A");
}
if (IS_NONE(psNameCAT)) {
output("psNameNA Matches CAT");
output("%s psNameNA 0x%x \"CAT\" addr 0x%X",
psNameNone,psNameNone,
"CAT");
} else {
output("psNameNA does not match CAT");
output("%s psNameNA 0x%x \"CAT\" addr 0x%X",
psNameNone,psNameNone,
"CAT");
}
}
If built in VS6.0 with Program Database with Edit and Continue. The compares APPEAR to work. With this setting STRING pooling is enabled, and the compiler optimizes all STRING pointers to POINT TO THE SAME ADDRESSS, so this can work. Any strings created on the fly after compile time will have DIFFERENT addresses so will fail the compare. Changing the setting to Program Database only will build the program so that it will fail.
For those of you using Visual Studio 2017 Professional, the registry key is:
HKCR\Licenses\5C505A59-E312-4B89-9508-E162F8150517
I also recommend you first export the registry key, before you delete it, so you'll have a backup if you accidentally delete the wrong key.
The only thing that appears to work is to set flex-wrap: wrap;
on the container and them somehow make the child you want to break out after to fill the full width, so width: 100%;
should work.
If, however, you can't stretch the element to 100% (for example, if it's an <img>
), you can apply a margin to it, like width: 50px; margin-right: calc(100% - 50px)
.
This one throw me for a spin. Angular 7, Webpack I found this article so I want to give credit to the Article https://www.edc4it.com/blog/web/helloworld-angular2.html
What the solution is: //on your component file. use template as webpack will treat it as text template: require('./process.component.html')
for karma to interpret it npm install add html-loader --save-dev { test: /.html$/, use: "html-loader" },
Hope this helps somebody
Try the below code. It is working in IE but not in FF22. If
Modal dialog found is printed in Console, then Modal dialog is identified and switched.
public class ModalDialog {
public static void main(String[] args) throws InterruptedException {
// TODO Auto-generated method stub
WebDriver driver = new InternetExplorerDriver();
//WebDriver driver = new FirefoxDriver();
driver.get("http://samples.msdn.microsoft.com/workshop/samples/author/dhtml/refs/showModalDialog2.htm");
String parent = driver.getWindowHandle();
WebDriverWait wait = new WebDriverWait(driver, 10);
WebElement push_to_create = wait.until(ExpectedConditions
.elementToBeClickable(By
.cssSelector("input[value='Push To Create']")));
push_to_create.click();
waitForWindow(driver);
switchToModalDialog(driver, parent);
}
public static void waitForWindow(WebDriver driver)
throws InterruptedException {
//wait until number of window handles become 2 or until 6 seconds are completed.
int timecount = 1;
do {
driver.getWindowHandles();
Thread.sleep(200);
timecount++;
if (timecount > 30) {
break;
}
} while (driver.getWindowHandles().size() != 2);
}
public static void switchToModalDialog(WebDriver driver, String parent) {
//Switch to Modal dialog
if (driver.getWindowHandles().size() == 2) {
for (String window : driver.getWindowHandles()) {
if (!window.equals(parent)) {
driver.switchTo().window(window);
System.out.println("Modal dialog found");
break;
}
}
}
}
}
Another option is to create a self-signed certificate that allows you to specify the domain name per website. This means you can use it across many domain names.
In IIS Manager
Now, on your website in IIS...
Here I came up with universal method to navigate from any place to root.
You create a new Class file with this class, so that it's accessible from anywhere in your project:
import UIKit
class SharedControllers
{
static func navigateToRoot(viewController: UIViewController)
{
var nc = viewController.navigationController
// If this is a normal view with NavigationController, then we just pop to root.
if nc != nil
{
nc?.popToRootViewControllerAnimated(true)
return
}
// Most likely we are in Modal view, so we will need to search for a view with NavigationController.
let vc = viewController.presentingViewController
if nc == nil
{
nc = viewController.presentingViewController?.navigationController
}
if nc == nil
{
nc = viewController.parentViewController?.navigationController
}
if vc is UINavigationController && nc == nil
{
nc = vc as? UINavigationController
}
if nc != nil
{
viewController.dismissViewControllerAnimated(false, completion:
{
nc?.popToRootViewControllerAnimated(true)
})
}
}
}
Usage from anywhere in your project:
{
...
SharedControllers.navigateToRoot(self)
...
}
The method could vary depending on your needs. Here are 3 ways to calculate Luminance:
Luminance (standard for certain colour spaces): (0.2126*R + 0.7152*G + 0.0722*B)
source
Luminance (perceived option 1): (0.299*R + 0.587*G + 0.114*B)
source
Luminance (perceived option 2, slower to calculate): ? sqrt( 0.241*R^2 + 0.691*G^2 + 0.068*B^2 )
sqrt( 0.299*R^2 + 0.587*G^2 + 0.114*B^2 )
(thanks to @MatthewHerbst) source
[Edit: added examples using named css colors sorted with each method.]
The problem here is that the "on" is applied to all elements that exists AT THE TIME. When you create an element dynamically, you need to run the on again:
$('form').on('submit',doFormStuff);
createNewForm();
// re-attach to all forms
$('form').off('submit').on('submit',doFormStuff);
Since forms usually have names or IDs, you can just attach to the new form as well. If I'm creating a lot of dynamic stuff, I'll include a setup or bind function:
function bindItems(){
$('form').off('submit').on('submit',doFormStuff);
$('button').off('click').on('click',doButtonStuff);
}
So then whenever you create something (buttons usually in my case), I just call bindItems to update everything on the page.
createNewButton();
bindItems();
I don't like using 'body' or document elements because with tabs and modals they tend to hang around and do things you don't expect. I always try to be as specific as possible unless its a simple 1 page project.
Here's a command I think could be of some help :
apachectl -t -D DUMP_VHOSTS
You'll get a list of all the vhosts, you'll know which one is the default one and you'll make sure that your syntax is correct (same as apachectl configtest suggested by yojimbo87).
You'll also know where each vhost is declared. It can be handy if your config files are a mess. ;)
Update on March 8, 2018 with Visual Studio Code 1.20.1 (mac)
It has been simplified quite a lot lately.
Very easy and straight forward now.
From the search box just search for "editor.action.transformTo", You will see the screen like:
Click the "plus" sign at the left of each item, it will prompt dialog for your to [press] you desired key-bindings, after it showing that on the screen, just hit [Enter] to save.
As was in my case if your sql is generated by concatenating or uses converts then sql at execute need to be prefixed with letter N as below
e.g.
Exec N'Select bla..'
the N defines string literal is unicode.
use this too :
if(e.preventDefault)
e.preventDefault();
else
e.returnValue = false;
Becoz e.preventDefault() is not supported in IE( some versions ). In IE it is e.returnValue = false
Deploy Flask on a real web server, rather than with the built-in (development) server.
See the Deployment Options chapter of the Flask documentation. Servers like Nginx and Apache both can handle setting up HTTPS servers rather than HTTP servers for your site.
The standalone WSGI servers listed would typically be deployed behind Nginx and Apache in a proxy-forwarding configuration, where the front-end server handles the SSL encryption for you still.
You can add a new property of type IFormFile
to your view model
public class CreatePost
{
public string ImageCaption { set;get; }
public string ImageDescription { set;get; }
public IFormFile MyImage { set; get; }
}
and in your GET action method, we will create an object of this view model and send to the view.
public IActionResult Create()
{
return View(new CreatePost());
}
Now in your Create view which is strongly typed to our view model, have a form
tag which has the enctype
attribute set to "multipart/form-data"
@model CreatePost
<form asp-action="Create" enctype="multipart/form-data">
<input asp-for="ImageCaption"/>
<input asp-for="ImageDescription"/>
<input asp-for="MyImage"/>
<input type="submit"/>
</form>
And your HttpPost action to handle the form posting
[HttpPost]
public IActionResult Create(CreatePost model)
{
var img = model.MyImage;
var imgCaption = model.ImageCaption;
//Getting file meta data
var fileName = Path.GetFileName(model.MyImage.FileName);
var contentType = model.MyImage.ContentType;
// do something with the above data
// to do : return something
}
If you want to upload the file to some directory in your app, you should use IHostingEnvironment
to get the webroot path. Here is a working sample.
public class HomeController : Controller
{
private readonly IHostingEnvironment hostingEnvironment;
public HomeController(IHostingEnvironment environment)
{
hostingEnvironment = environment;
}
[HttpPost]
public IActionResult Create(CreatePost model)
{
// do other validations on your model as needed
if (model.MyImage != null)
{
var uniqueFileName = GetUniqueFileName(model.MyImage.FileName);
var uploads = Path.Combine(hostingEnvironment.WebRootPath, "uploads");
var filePath = Path.Combine(uploads,uniqueFileName);
model.MyImage.CopyTo(new FileStream(filePath, FileMode.Create));
//to do : Save uniqueFileName to your db table
}
// to do : Return something
return RedirectToAction("Index","Home");
}
private string GetUniqueFileName(string fileName)
{
fileName = Path.GetFileName(fileName);
return Path.GetFileNameWithoutExtension(fileName)
+ "_"
+ Guid.NewGuid().ToString().Substring(0, 4)
+ Path.GetExtension(fileName);
}
}
This will save the file to uploads
folder inside wwwwroot
directory of your app with a random file name generated using Guids ( to prevent overwriting of files with same name)
Here we are using a very simple GetUniqueName
method which will add 4 chars from a guid to the end of the file name to make it somewhat unique. You can update the method to make it more sophisticated as needed.
Should you be storing the full url to the uploaded image in the database ?
No. Do not store the full url to the image in the database. What if tomorrow your business decides to change your company/product name from www.thefacebook.com
to www.facebook.com
? Now you have to fix all the urls in the table!
What should you store ?
You should store the unique filename which you generated above(the uniqueFileName
varibale we used above) to store the file name. When you want to display the image back, you can use this value (the filename) and build the url to the image.
For example, you can do this in your view.
@{
var imgFileName = "cats_46df.png";
}
<img src="~/uploads/@imgFileName" alt="my img"/>
I just hardcoded an image name to imgFileName
variable and used that. But you may read the stored file name from your database and set to your view model property and use that. Something like
<img src="~/uploads/@Model.FileName" alt="my img"/>
Storing the image to table
If you want to save the file as bytearray/varbinary to your database, you may convert the IFormFile
object to byte array like this
private byte[] GetByteArrayFromImage(IFormFile file)
{
using (var target = new MemoryStream())
{
file.CopyTo(target);
return target.ToArray();
}
}
Now in your http post action method, you can call this method to generate the byte array from IFormFile
and use that to save to your table. the below example is trying to save a Post entity object using entity framework.
[HttpPost]
public IActionResult Create(CreatePost model)
{
//Create an object of your entity class and map property values
var post=new Post() { ImageCaption = model.ImageCaption };
if (model.MyImage != null)
{
post.Image = GetByteArrayFromImage(model.MyImage);
}
_context.Posts.Add(post);
_context.SaveChanges();
return RedirectToAction("Index","Home");
}
Your code (or some code called by you) is making a call to a COM method which is returning an unknown value. If you can find that then you're half way there.
You could try breaking when the exception is thrown. Go to Debug > Exceptions... and use the Find... option to locate System.Runtime.InteropServices.COMException
. Tick the option to break when it's thrown and then debug your application.
Hopefully it will break somewhere meaningful and you'll be able to trace back and find the source of the error.
not so elegant but you dont need to declare any variable:
for k in (select max(1) from table where 1 = 1) loop
update x where column = value;
end loop;
Execute chmod 777 -R scripts/
, it worked fine for me ;)
I realise this is only applicable to a niche of the situations, but within a numpy
context I really like using np.errstate
:
np.sqrt(-1)
__main__:1: RuntimeWarning: invalid value encountered in sqrt
nan
However, using np.errstate
:
with np.errstate(invalid='ignore'):
np.sqrt(-1)
nan
The best part being you can apply this to very specific lines of code only.
It's also possible to get this error if you are running the test project using JUnit instead of Android JUnit. Naturally, the solution is just to change how you run it.
Assuming your DataSource is of type DataTable, you can just do this:
myGridView.DataSource as DataTable
Further to Andrew Wang's answer: if the BitConverter method is too slow but you cannot use unsafe code in your project, this struct is ~6x quicker than BitConverter:
[StructLayout(LayoutKind.Explicit)]
public struct FloatToIntSafeBitConverter
{
public static int Convert(float value)
{
return new FloatToIntSafeBitConverter(value).IntValue;
}
public FloatToIntSafeBitConverter(float floatValue): this()
{
FloatValue = floatValue;
}
[FieldOffset(0)]
public readonly int IntValue;
[FieldOffset(0)]
public readonly float FloatValue;
}
(Incidentally, I tried using the accepted solution but it (well my conversion at least) failed some of the unit tests also mentioned in the answer. e.g. assertTrue(nearlyEqual(Float.MIN_VALUE, -Float.MIN_VALUE));
)
The LLVM Compiler Infrastructure is particularly useful for performing optimizations and transformations on code. It also consists of a number of tools serving distinct usages. llvm-prof is a profiling tool that allows you to do profiling of execution in order to identify program hotspots. Opt is an optimization tool that offers various optimization passes (dead code elimination for instance).
Importantly LLVM provides you with the libraries, to write your own Passes. For instance if you require to add a range check on certain arguments that are passed into certain functions of a Program, writing a simple LLVM Pass would suffice.
For more information on writing your own Pass, check this http://llvm.org/docs/WritingAnLLVMPass.html
If you're interested in creating a new dict without using intermediary storage: (this is faster, and in my opinion, cleaner than using dict.items())
dic2 = dict(dic0, **dic1)
Or if you're happy to use one of the existing dicts:
dic0.update(dic1)
I found this maven
repo where you could download from directly a zip
file containing all the jars you need.
The solution I prefer is using Maven
, it is easy and you don't have to download each jar
alone. You can do it with the following steps:
Create an empty folder anywhere with any name you prefer, for example spring-source
Create a new file named pom.xml
Copy the xml below into this file
Open the spring-source
folder in your console
Run mvn install
After download finished, you'll find spring jars in /spring-source/target/dependencies
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>spring-source-download</groupId>
<artifactId>SpringDependencies</artifactId>
<version>1.0</version>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.2.4.RELEASE</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.8</version>
<executions>
<execution>
<id>download-dependencies</id>
<phase>generate-resources</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/dependencies</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
Also, if you need to download any other spring project, just copy the dependency
configuration from its corresponding web page.
For example, if you want to download Spring Web Flow
jars, go to its web page, and add its dependency
configuration to the pom.xml
dependencies
, then run mvn install
again.
<dependency>
<groupId>org.springframework.webflow</groupId>
<artifactId>spring-webflow</artifactId>
<version>2.3.2.RELEASE</version>
</dependency>
To get the row numbers where at least one item is larger than 15:
>>> np.where(np.any(e>15, axis=1))
(array([1, 2], dtype=int64),)
Use the STL
#include <iostream>
#include <vector>
#include <algorithm>
#include <iterator>
int main()
{
std::vector<int> userInput;
// Read until end of input.
// Hit control D
std::copy(std::istream_iterator<int>(std::cin),
std::istream_iterator<int>(),
std::back_inserter(userInput)
);
// Print in Normal order
std::copy(userInput.begin(),
userInput.end(),
std::ostream_iterator<int>(std::cout,",")
);
std::cout << "\n";
// Print in reverse order:
std::copy(userInput.rbegin(),
userInput.rend(),
std::ostream_iterator<int>(std::cout,",")
);
std::cout << "\n";
// Update for C++11
// Range based for is now a good alternative.
for(auto const& value: userInput)
{
std::cout << value << ",";
}
std::cout << "\n";
}
You can use psexec.exe from Microsoft Sysinternals Suite https://docs.microsoft.com/en-us/sysinternals/downloads/sysinternals-suite
Example:
c:\somedir\psexec.exe -u domain\user -p password cmd.exe
From remote repo:
svn log -v -r 42 --stop-on-copy --non-interactive --no-auth-cache --username USERNAME --password PASSWORD http://repourl/projectname/
I've been able to solve this by using a hack involving import *
. It even works for both named and default exports!
For a named export:
// dependency.js
export const doSomething = (y) => console.log(y)
// myModule.js
import { doSomething } from './dependency';
export default (x) => {
doSomething(x * 2);
}
// myModule-test.js
import myModule from '../myModule';
import * as dependency from '../dependency';
describe('myModule', () => {
it('calls the dependency with double the input', () => {
dependency.doSomething = jest.fn(); // Mutate the named export
myModule(2);
expect(dependency.doSomething).toBeCalledWith(4);
});
});
Or for a default export:
// dependency.js
export default (y) => console.log(y)
// myModule.js
import dependency from './dependency'; // Note lack of curlies
export default (x) => {
dependency(x * 2);
}
// myModule-test.js
import myModule from '../myModule';
import * as dependency from '../dependency';
describe('myModule', () => {
it('calls the dependency with double the input', () => {
dependency.default = jest.fn(); // Mutate the default export
myModule(2);
expect(dependency.default).toBeCalledWith(4); // Assert against the default
});
});
As Mihai Damian quite rightly pointed out below, this is mutating the module object of dependency
, and so it will 'leak' across to other tests. So if you use this approach you should store the original value and then set it back again after each test.
To do this easily with Jest, use the spyOn() method instead of jest.fn()
, because it supports easily restoring its original value, therefore avoiding before mentioned 'leaking'.
Add_ supplier is name of the form
private void add_supplier_Load(object sender, EventArgs e)
{
add_supplier childform = new add_supplier();
childform.MdiParent = this;
childform.Show();
}
How can you insert String result of function into buildConfigField
Here's an example of build date in human-readable format set:
def getDate() {
return new SimpleDateFormat("dd MMMM yyyy", new Locale("ru")).format(new Date())
}
def buildDate = getDate()
defaultConfig {
buildConfigField "String", "BUILD_DATE", "\"$buildDate\""
}
./
refers to the current working directory, except in the require()
function. When using require()
, it translates ./
to the directory of the current file called. __dirname
is always the directory of the current file.
For example, with the following file structure
/home/user/dir/files/config.json
{
"hello": "world"
}
/home/user/dir/files/somefile.txt
text file
/home/user/dir/dir.js
var fs = require('fs');
console.log(require('./files/config.json'));
console.log(fs.readFileSync('./files/somefile.txt', 'utf8'));
If I cd
into /home/user/dir
and run node dir.js
I will get
{ hello: 'world' }
text file
But when I run the same script from /home/user/
I get
{ hello: 'world' }
Error: ENOENT, no such file or directory './files/somefile.txt'
at Object.openSync (fs.js:228:18)
at Object.readFileSync (fs.js:119:15)
at Object.<anonymous> (/home/user/dir/dir.js:4:16)
at Module._compile (module.js:432:26)
at Object..js (module.js:450:10)
at Module.load (module.js:351:31)
at Function._load (module.js:310:12)
at Array.0 (module.js:470:10)
at EventEmitter._tickCallback (node.js:192:40)
Using ./
worked with require
but not for fs.readFileSync
. That's because for fs.readFileSync
, ./
translates into the cwd (in this case /home/user/
). And /home/user/files/somefile.txt
does not exist.
In swift 3 use:
let url = URL(string: "Whatever url you have(eg: https://google.com)")
For cross platform developers (Note All answers given so far will not work on iOS):
Mouseup/down seemed to work okay on android - but not all devices ie (samsung tab4). Did not work at all on iOS.
Further research its seems that this is due to the element having selection and the native magnification interupts the listener.
This event listener enables a thumbnail image to be opened in a bootstrap modal, if the user holds the image for 500ms.
It uses a responsive image class therefore showing a larger version of the image. This piece of code has been fully tested upon (iPad/Tab4/TabA/Galaxy4):
var pressTimer;
$(".thumbnail").on('touchend', function (e) {
clearTimeout(pressTimer);
}).on('touchstart', function (e) {
var target = $(e.currentTarget);
var imagePath = target.find('img').attr('src');
var title = target.find('.myCaption:visible').first().text();
$('#dds-modal-title').text(title);
$('#dds-modal-img').attr('src', imagePath);
// Set timeout
pressTimer = window.setTimeout(function () {
$('#dds-modal').modal('show');
}, 500)
});
var isTouchScreen = 'createTouch' in document;
or
var isTouchScreen = 'createTouch' in document || screen.width <= 699 ||
ua.match(/(iPhone|iPod|iPad)/) || ua.match(/BlackBerry/) ||
ua.match(/Android/);
would be a more thorough check I suppose.
This is cross-browser and fully responsive:
<iframe
src="https://drive.google.com/file/d/0BxrMaW3xINrsR3h2cWx0OUlwRms/preview"
style="
position: fixed;
top: 0px;
bottom: 0px;
right: 0px;
width: 100%;
border: none;
margin: 0;
padding: 0;
overflow: hidden;
z-index: 999999;
height: 100%;
">
</iframe>
Personally I would just use Powermock along with Mockito or Easymock to mock the static SecurityContextHolder.getSecurityContext() in your unit/integration test e.g.
@RunWith(PowerMockRunner.class)
@PrepareForTest(SecurityContextHolder.class)
public class YourTestCase {
@Mock SecurityContext mockSecurityContext;
@Test
public void testMethodThatCallsStaticMethod() {
// Set mock behaviour/expectations on the mockSecurityContext
when(mockSecurityContext.getAuthentication()).thenReturn(...)
...
// Tell mockito to use Powermock to mock the SecurityContextHolder
PowerMockito.mockStatic(SecurityContextHolder.class);
// use Mockito to set up your expectation on SecurityContextHolder.getSecurityContext()
Mockito.when(SecurityContextHolder.getSecurityContext()).thenReturn(mockSecurityContext);
...
}
}
Admittedly there is quite a bit of boiler plate code here i.e. mock an Authentication object, mock a SecurityContext to return the Authentication and finally mock the SecurityContextHolder to get the SecurityContext, however its very flexible and allows you to unit test for scenarios like null Authentication objects etc. without having to change your (non test) code
I suggest you do it through the GET request: for example, index.html:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<form action="result.php" method="post">
Answer 1 <input type="radio" name="ans" value="ans1" /><br />
Answer 2 <input type="radio" name="ans" value="ans2" /><br />
Answer 3 <input type="radio" name="ans" value="ans3" /><br />
Answer 4 <input type="radio" name="ans" value="ans4" /><br />
<input type="button" value="submit" onclick="sendPost()" />
</form>
<script type="text/javascript">
function sendPost(){
var value = $('input[name="ans"]:checked').val();
window.location.href = "sendpost.php?ans="+value;
};
</script>
this is sendpost.php:
<?php
if(isset($_GET["ans"]) AND !empty($_GET["ans"])){
echo $_GET["ans"];
}
?>
I've compared performance (space and time) for a number of ways to store numpy arrays. Few of them support multiple arrays per file, but perhaps it's useful anyway.
Npy and binary files are both really fast and small for dense data. If the data is sparse or very structured, you might want to use npz with compression, which'll save a lot of space but cost some load time.
If portability is an issue, binary is better than npy. If human readability is important, then you'll have to sacrifice a lot of performance, but it can be achieved fairly well using csv (which is also very portable of course).
More details and the code are available at the github repo.
I had the same problem. Try this.
<nav>
<ul>
<li><a href="#">AnaSayfa</a></li>
<li><a href="#">Hakkimizda</a></li>
<li><a href="#">Iletisim</a></li>
</ul>
</nav>
@charset "utf-8";
nav {
background-color: #9900CC;
height: 80px;
width: 400px;
}
ul {
list-style: none;
float: right;
margin: 0;
}
li {
float: left;
width: 100px;
line-height: 80px;
vertical-align: middle;
text-align: center;
margin: 0;
}
nav li a {
width: 100px;
text-decoration: none;
color: #FFFFFF;
}
Mongoose (Formerly Simple HTTP Daemon) is pretty good. In particular, it's embeddable and compiles under Windows, Windows CE, and UNIX.
Generally, a solution to this would be:
log(pow(exp(numerator),pow(denominator,-1)))
If expecting JSON back, the simplest way to get it:
$data = json_decode($response->getBody()); // returns an object
// OR
$data = json_decode($response->getBody(), true); // returns an array
json_decode()
will automatically cast the body to string
, so there is no need to call getContents()
.
The most simple and shortest way to accomplish this:
/[^\p{L}\d\s@#]/u
[^...]
Match a single character not present in the list below
\p{L}
=> matches any kind of letter from any language
\d
=> matches a digit zero through nine
\s
=> matches any kind of invisible character
@#
=> @
and #
characters
Don't forget to pass the u
(unicode) flag.
Switch in combination with variable variables will give you more flexibility:
<?php
$p = 'home'; //For testing
$p = ( strpos($p, 'users') !== false? 'users': $p);
switch ($p) {
default:
$varContainer = 'current_' . $p; //Stores the variable [$current_"xyORz"] into $varContainer
${$varContainer} = 'current'; //Sets the VALUE of [$current_"xyORz"] to 'current'
break;
}
//For testing
echo $current_home;
?>
To learn more, checkout variable variables and the examples I submitted to php manual:
Example 1: http://www.php.net/manual/en/language.variables.variable.php#105293
Example 2: http://www.php.net/manual/en/language.variables.variable.php#105282
PS: This example code is SMALL AND SIMPLE, just the way I like it. It's tested and works too
The microsoft telnet.exe
is not scriptable without using another script (which needs keyboard focus), as shown in another answer to this question, but there is a free
Telnet Scripting Tool v.1.0 by Albert Yale
that you can google for and which is both scriptable and loggable and can be launched from a batch file without needing keyboard focus.
The problem with telnet.exe and a second script when keyboard focus is being used is that if someone is using the computer at the time the script runs, then it is highly likely that the script will fail due to mouse clicks and keyboard use at that moment in time.
They're not the same thing - UTF-8 is a particular way of encoding Unicode.
There are lots of different encodings you can choose from depending on your application and the data you intend to use. The most common are UTF-8, UTF-16 and UTF-32 s far as I know.
There is no difference between environment variables and variables in a script. Environment variables are just defined earlier, outside the script, before the script is called. From the script's point of view, a variable is a variable.
You can check if a variable is defined:
if [ -z "$a" ]
then
echo "not defined"
else
echo "defined"
fi
and then set a default value for undefined variables or do something else.
The -z
checks for a zero-length (i.e. empty) string. See man bash
and look for the CONDITIONAL EXPRESSIONS section.
You can also use set -u
at the beginning of your script to make it fail once it encounters an undefined variable, if you want to avoid having an undefined variable breaking things in creative ways.
Download and run the following script to recursively convert soft tabs to hard tabs in plain text files.
Place and execute the script from inside the folder which contains the plain text files.
#!/bin/bash
find . -type f -and -not -path './.git/*' -exec grep -Iq . {} \; -and -print | while read -r file; do {
echo "Converting... "$file"";
data=$(unexpand --first-only -t 4 "$file");
rm "$file";
echo "$data" > "$file";
}; done;
Just use the unary minus operator:
int x = 5;
...
x = -x; // Here's the mystery library function - the single character "-"
Java has two minus operators:
0 - x
), andThis compiles and works as expected.
I would suggest not to create general debug and release tasks if the project is really something that gets compiled and so results in files. You should go with file-tasks which is quite doable in your example, as you state, that your output goes into different directories. Say your project just compiles a test.c file to out/debug/test.out and out/release/test.out with gcc you could setup your project like this:
WAYS = ['debug', 'release']
FLAGS = {}
FLAGS['debug'] = '-g'
FLAGS['release'] = '-O'
def out_dir(way)
File.join('out', way)
end
def out_file(way)
File.join(out_dir(way), 'test.out')
end
WAYS.each do |way|
desc "create output directory for #{way}"
directory out_dir(way)
desc "build in the #{way}-way"
file out_file(way) => [out_dir(way), 'test.c'] do |t|
sh "gcc #{FLAGS[way]} -c test.c -o #{t.name}"
end
end
desc 'build all ways'
task :all => WAYS.map{|way|out_file(way)}
task :default => [:all]
This setup can be used like:
rake all # (builds debug and release)
rake debug # (builds only debug)
rake release # (builds only release)
This does a little more as asked for, but shows my points:
I could solve the problem using enctype="application/x-www-form-urlencoded" as the default is "text/plain". When you check in $DATA the seperator is a space for "text/plain" and a special character for the "urlencoded".
Kind regards Frank
The fastest way, to get a hash string for password store purposes, is a following code:
internal static string GetStringSha256Hash(string text)
{
if (String.IsNullOrEmpty(text))
return String.Empty;
using (var sha = new System.Security.Cryptography.SHA256Managed())
{
byte[] textData = System.Text.Encoding.UTF8.GetBytes(text);
byte[] hash = sha.ComputeHash(textData);
return BitConverter.ToString(hash).Replace("-", String.Empty);
}
}
Remarks:
sha
variable should be refactored into a class field;Try changing it to.
Response.Clear();
Response.ClearHeaders();
Response.ClearContent();
Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name);
Response.AddHeader("Content-Length", file.Length.ToString());
Response.ContentType = "text/plain";
Response.Flush();
Response.TransmitFile(file.FullName);
Response.End();
Update: Turns out that this method, while following STL idioms well, is actually surprisingly inefficient! Don't do this with large files. (See: http://insanecoding.blogspot.com/2011/11/how-to-read-in-file-in-c.html)
You can make a streambuf iterator out of the file and initialize the string with it:
#include <string>
#include <fstream>
#include <streambuf>
std::ifstream t("file.txt");
std::string str((std::istreambuf_iterator<char>(t)),
std::istreambuf_iterator<char>());
Not sure where you're getting the t.open("file.txt", "r")
syntax from. As far as I know that's not a method that std::ifstream
has. It looks like you've confused it with C's fopen
.
Edit: Also note the extra parentheses around the first argument to the string constructor. These are essential. They prevent the problem known as the "most vexing parse", which in this case won't actually give you a compile error like it usually does, but will give you interesting (read: wrong) results.
Following KeithB's point in the comments, here's a way to do it that allocates all the memory up front (rather than relying on the string class's automatic reallocation):
#include <string>
#include <fstream>
#include <streambuf>
std::ifstream t("file.txt");
std::string str;
t.seekg(0, std::ios::end);
str.reserve(t.tellg());
t.seekg(0, std::ios::beg);
str.assign((std::istreambuf_iterator<char>(t)),
std::istreambuf_iterator<char>());
I just thought I'd chip in on this one. It's been answered perfectly well by others though.
The full main method declaration should be :
public static void main(final String[] args) throws Exception {
}
The args are declared final because technically they should not be altered. They are console parameters given by the user.
You should usually specify that main throws Exception so that stack traces can be echoed to console easily without needing to do e.printStackTrace() etc.
As for Array Syntax. I prefer it this way. I suppose that it's a little bit like the difference between french and english. In English it's "a black car", in french it's "a car black". Which is the important noun, car, or black?
I don't like this sort of thing :
String blah[] = {};
What's important here is that it's a String array, so it should be
String[] blah = {};
blah is just a name. I personally think it's a bit of a mistake in Java that arrays can sometimes be declared in that manner.
There are many answers to the question, but I felt there is a need for some really simple answer clearly comparing the two. Here's the discussion I made up when a user searches for a movie name in an MVP and MVC app:
User: Click click …
View: Who’s that? [MVP|MVC]
User: I just clicked on the search button …
View: Ok, hold on a sec … . [MVP|MVC]
( View calling the Presenter|Controller … ) [MVP|MVC]
View: Hey Presenter|Controller, a User has just clicked on the search button, what shall I do? [MVP|MVC]
Presenter|Controller: Hey View, is there any search term on that page? [MVP|MVC]
View: Yes,… here it is … “piano” [MVP|MVC]
Presenter: Thanks View,… meanwhile I’m looking up the search term on the Model, please show him/her a progress bar [MVP|MVC]
( Presenter|Controller is calling the Model … ) [MVP|MVC]
Presenter|Controller: Hey Model, Do you have any match for this search term?: “piano” [MVP|MVC]
Model: Hey Presenter|Controller, let me check … [MVP|MVC]
( Model is making a query to the movie database … ) [MVP|MVC]
( After a while ... )
-------------- This is where MVP and MVC start to diverge ---------------
Model: I found a list for you, Presenter, here it is in JSON “[{"name":"Piano Teacher","year":2001},{"name":"Piano","year":1993}]” [MVP]
Model: There is some result available, Controller. I have created a field variable in my instance and filled it with the result. It's name is "searchResultsList" [MVC]
(Presenter|Controller thanks Model and gets back to the View) [MVP|MVC]
Presenter: Thanks for waiting View, I found a list of matching results for you and arranged them in a presentable format: ["Piano Teacher 2001","Piano 1993"]. Please show it to the user in a vertical list. Also please hide the progress bar now [MVP]
Controller: Thanks for waiting View, I have asked Model about your search query. It says it has found a list of matching results and stored them in a variable named "searchResultsList" inside its instance. You can get it from there. Also please hide the progress bar now [MVC]
View: Thank you very much Presenter [MVP]
View: Thank you "Controller" [MVC] (Now the View is questioning itself: How should I present the results I get from the Model to the user? Should the production year of the movie come first or last...? Should it be in a vertical or horizontal list? ...)
In case you're interested, I have been writing a series of articles dealing with app architectural patterns (MVC, MVP, MVVP, clean architecture, ...) accompanied by a Github repo here. Even though the sample is written for android, the underlying principles can be applied to any medium.
Be sure to use the correct path!
I mistakenly had written C:\Program Files\Java\
. Changing it to C:\Program Files\Java\jdk\11.0.6\
fixed the issue.
In cmd
I then checked for the version of maven
with mvn -version
.
corona is nice. From the tutorial:
corona::Image* image = corona::OpenImage("img.jpg", corona::PF_R8G8B8A8);
if (!image) {
// error!
}
int width = image->getWidth();
int height = image->getHeight();
void* pixels = image->getPixels();
// we're guaranteed that the first eight bits of every pixel is red,
// the next eight bits is green, and so on...
typedef unsigned char byte;
byte* p = (byte*)pixels;
for (int i = 0; i < width * height; ++i) {
byte red = *p++;
byte green = *p++;
byte blue = *p++;
byte alpha = *p++;
}
pixels would be a one dimensional array, but you could easily convert a given x and y position to a position in a 1D array. Something like pos = (y * width) + x
I believe the original question said:
a character belongs to a list/array of invalid characters
and not:
belongs to a null-terminated string
which, if it did, then strchr
would indeed be the most suitable answer. If, however, there is no null termination to an array of chars or if the chars are in a list structure, then you will need to either create a null-terminated string and use strchr
or manually iterate over the elements in the collection, checking each in turn. If the collection is small, then a linear search will be fine. A large collection may need a more suitable structure to improve the search times - a sorted array or a balanced binary tree for example.
Pick whatever works best for you situation.
Anaconda does not use the PYTHONPATH
. One should however note that if the PYTHONPATH
is set it could be used to load a library that is not in the anaconda environment. That is why before activating an environment it might be good to do a
unset PYTHONPATH
For instance this PYTHONPATH points to an incorrect pandas lib:
export PYTHONPATH=/home/john/share/usr/anaconda/lib/python
source activate anaconda-2.7
python
>>>> import pandas as pd
/home/john/share/usr/lib/python/pandas-0.12.0-py2.7-linux-x86_64.egg/pandas/hashtable.so: undefined symbol: PyUnicodeUCS2_DecodeUTF8
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/john/share/usr/lib/python/pandas-0.12.0-py2.7-linux-x86_64.egg/pandas/__init__.py", line 6, in <module>
from . import hashtable, tslib, lib
ImportError: /home/john/share/usr/lib/python/pandas-0.12.0-py2.7-linux-x86_64.egg/pandas/hashtable.so: undefined symbol: PyUnicodeUCS2_DecodeUTF8
unsetting the PYTHONPATH
prevents the wrong pandas lib from being loaded:
unset PYTHONPATH
source activate anaconda-2.7
python
>>>> import pandas as pd
>>>>
This warning also could be raised due to
new HashMap() or new ArrayList() that is generic type has to be specific otherwise the compiler will generate warning.
Please make sure that if you code contains the following you have to change accordingly
new HashMap() => Map map = new HashMap() new HashMap() => Map map = new HashMap<>()
new ArrayList() => List map = new ArrayList() new ArrayList() => List map = new ArrayList<>()
Try to use different id and name parameters, currently you have same here. Please visit the link below for the same, this might be help you :
public static void copyFile(File oldLocation, File newLocation) throws IOException {
if ( oldLocation.exists( )) {
BufferedInputStream reader = new BufferedInputStream( new FileInputStream(oldLocation) );
BufferedOutputStream writer = new BufferedOutputStream( new FileOutputStream(newLocation, false));
try {
byte[] buff = new byte[8192];
int numChars;
while ( (numChars = reader.read( buff, 0, buff.length ) ) != -1) {
writer.write( buff, 0, numChars );
}
} catch( IOException ex ) {
throw new IOException("IOException when transferring " + oldLocation.getPath() + " to " + newLocation.getPath());
} finally {
try {
if ( reader != null ){
writer.close();
reader.close();
}
} catch( IOException ex ){
Log.e(TAG, "Error closing files when transferring " + oldLocation.getPath() + " to " + newLocation.getPath() );
}
}
} else {
throw new IOException("Old location does not exist when transferring " + oldLocation.getPath() + " to " + newLocation.getPath() );
}
}
If you use the @OneToMany
annotation with @JoinColumn
, then you have a unidirectional association, like the one between the parent Post
entity and the child PostComment
in the following diagram:
When using a unidirectional one-to-many association, only the parent side maps the association.
In this example, only the Post
entity will define a @OneToMany
association to the child PostComment
entity:
@OneToMany(cascade = CascadeType.ALL, orphanRemoval = true)
@JoinColumn(name = "post_id")
private List<PostComment> comments = new ArrayList<>();
If you use the @OneToMany
with the mappedBy
attribute set, you have a bidirectional association. In our case, both the Post
entity has a collection of PostComment
child entities, and the child PostComment
entity has a reference back to the parent Post
entity, as illustrated by the following diagram:
In the PostComment
entity, the post
entity property is mapped as follows:
@ManyToOne(fetch = FetchType.LAZY)
private Post post;
The reason we explicitly set the
fetch
attribute toFetchType.LAZY
is because, by default, all@ManyToOne
and@OneToOne
associations are fetched eagerly, which can cause N+1 query issues.
In the Post
entity, the comments
association is mapped as follows:
@OneToMany(
mappedBy = "post",
cascade = CascadeType.ALL,
orphanRemoval = true
)
private List<PostComment> comments = new ArrayList<>();
The mappedBy
attribute of the @OneToMany
annotation references the post
property in the child PostComment
entity, and, this way, Hibernate knows that the bidirectional association is controlled by the @ManyToOne
side, which is in charge of managing the Foreign Key column value this table relationship is based on.
For a bidirectional association, you also need to have two utility methods, like addChild
and removeChild
:
public void addComment(PostComment comment) {
comments.add(comment);
comment.setPost(this);
}
public void removeComment(PostComment comment) {
comments.remove(comment);
comment.setPost(null);
}
These two methods ensure that both sides of the bidirectional association are in sync. Without synchronizing both ends, Hibernate does not guarantee that association state changes will propagate to the database.
The unidirectional @OneToMany
association does not perform very well, so you should avoid it.
You are better off using the bidirectional @OneToMany
which is more efficient.
My problem was related to @BeforeEach
of JUnit. And even if I saved the related entities (in my case @ManyToOne
), I got the same error.
The problem is somehow related to the sequence that I have in my parent. If I assign the value to that attribute, the problem is solved.
Ex. If I have the entity Question that can have some categories (one or more) and entity Question has a sequence:
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "feedbackSeq")
@Id
private Long id;
I have to assign the value question.setId(1L);
As constraint has unpredictable name, you can write special script(DropConstraint) to remove it without knowing it's name (was tested at EF 6.1.3):
public override void Up()
{
DropConstraint();
AlterColumn("dbo.MyTable", "Rating", c => c.Double(nullable: false));
}
private void DropConstraint()
{
Sql(@"DECLARE @var0 nvarchar(128)
SELECT @var0 = name
FROM sys.default_constraints
WHERE parent_object_id = object_id(N'dbo.MyTable')
AND col_name(parent_object_id, parent_column_id) = 'Rating';
IF @var0 IS NOT NULL
EXECUTE('ALTER TABLE [dbo].[MyTable] DROP CONSTRAINT [' + @var0 + ']')");
}
public override void Down()
{
AlterColumn("dbo.MyTable", "Rating", c => c.Int(nullable: false));
}
set(dictA.keys()).intersection(dictB.keys())
FOR MANY NESTED FRAGMENTS (for example, when using a ViewPager in a fragment)
In your main activity:
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
}
In your fragment:
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
for (Fragment fragment : getChildFragmentManager().getFragments()) {
fragment.onActivityResult(requestCode, resultCode, data);
}
}
In your nested fragment
Call activity
getParentFragment().startActivityForResult(intent, uniqueInstanceInt);
uniqueInstanceInt - replace it with an int that is unique among the nested fragments to prevent another fragment treat the answer.
Receive response
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == uniqueInstanceInt ) {
// TODO your code
}
}
Attention
A number between 0 and 65536 need be used in uniqueInstanceInt for error avoid "Can only use lower 16 bits for requestCode".
There is an alternative solution that might be adaptable to the RichTextBox oultined in this blog post - it used a trigger to swap out the control template when the use hovers over the control - should help with performance
Have you tried the Gang of Four book?
Design Patterns: Elements of Reusable Object-Oriented Software
I tried these in angular 7. It worked successfully.
this.form.controls['fromField'].reset();
if(condition){
this.form.controls['fromField'].enable();
}
else{
this.form.controls['fromField'].disable();
}
The general issue is just any issue involving Machine/Web/App configs.
I had the same connection strings in Machine.Config as in my App.Config so I put before my first connection string in my App.Config
About promise composition vs. Rxjs, as this is a frequently asked question, you can refer to a number of previously asked questions on SO, among which :
Basically, flatMap
is the equivalent of Promise.then
.
For your second question, do you want to replay values already emitted, or do you want to process new values as they arrive? In the first case, check the publishReplay
operator. In the second case, standard subscription is enough. However you might need to be aware of the cold. vs. hot dichotomy depending on your source (cf. Hot and Cold observables : are there 'hot' and 'cold' operators? for an illustrated explanation of the concept)
Use max()
:
Using itemgetter()
:
In [53]: lis=[(101, 153), (255, 827), (361, 961)]
In [81]: from operator import itemgetter
In [82]: max(lis,key=itemgetter(1))[0] #faster solution
Out[82]: 361
using lambda
:
In [54]: max(lis,key=lambda item:item[1])
Out[54]: (361, 961)
In [55]: max(lis,key=lambda item:item[1])[0]
Out[55]: 361
timeit
comparison:
In [30]: %timeit max(lis,key=itemgetter(1))
1000 loops, best of 3: 232 us per loop
In [31]: %timeit max(lis,key=lambda item:item[1])
1000 loops, best of 3: 556 us per loop
A singleton should be used when managing access to a resource which is shared by the entire application, and it would be destructive to potentially have multiple instances of the same class. Making sure that access to shared resources thread safe is one very good example of where this kind of pattern can be vital.
When using Singletons, you should make sure that you're not accidentally concealing dependencies. Ideally, the singletons (like most static variables in an application) be set up during the execution of your initialization code for the application (static void Main() for C# executables, static void main() for java executables) and then passed in to all other classes that are instantiated which require it. This helps you maintain testability.
Void Function
<?php
function printMessage() {
echo "Hello World!";
}
?>
<script>
document.write("<?php printMessage() ?>");
</script>
Value Returning Function
<?php
function getMessage() {
return "Hello World!";
}
?>
<script>
var text = "<?php echo getMessage() ?>";
</script>
You don't want a string, you really want a JS map of key value pairs. E.g., change:
data: myDataVar.toString(),
with:
var myKeyVals = { A1984 : 1, A9873 : 5, A1674 : 2, A8724 : 1, A3574 : 3, A1165 : 5 }
var saveData = $.ajax({
type: 'POST',
url: "someaction.do?action=saveData",
data: myKeyVals,
dataType: "text",
success: function(resultData) { alert("Save Complete") }
});
saveData.error(function() { alert("Something went wrong"); });
jQuery understands key value pairs like that, it does NOT understand a big string. It passes it simply as a string.
UPDATE: Code fixed.
$path = "C:\DemoFolder"
$acl = Get-Acl $path
$username = [System.Security.Principal.WindowsIdentity]::GetCurrent().Name
$Attribs = $username, "FullControl", "ContainerInherit,ObjectInherit", "None", "Allow"
$AccessRule = New-Object System.Security.AcessControl.FileSystemAccessRule($Attribs)
$acl.SetAccessRule($AccessRule)
$acl | Set-Acl $path
Get-ChildItem -Path "$path" -Recourse -Force | Set-Acl -aclObject $acl -Verbose
As mentioned on the javadocs you are better off using a ScheduledThreadPoolExecutor.
Use this class when your use case requires multiple worker threads and the sleep interval is small. How small ? Well, I'd say about 15 minutes. The AlarmManager
starts schedule intervals at this time and it seems to suggest that for smaller sleep intervals this class can be used. I do not have data to back the last statement. It is a hunch.
Your service can be closed any time by the VM. Do not use services for recurring tasks. A recurring task can start a service, which is another matter entirely.
For longer sleep intervals (>15 minutes), this is the way to go. AlarmManager
already has constants ( AlarmManager.INTERVAL_DAY
) suggesting that it can trigger tasks several days after it has initially been scheduled. It can also wake up the CPU to run your code.
You should use one of those solutions based on your timing and worker thread needs.
index.html
.
for more info refer this repository https://github.com/pkozlowski-opensource/ng2-play/blob/master/index.html
or refer to my repository here
index.html
<script src="node_modules/angular2/bundles/angular2-polyfills.js"></script>
<script src="node_modules/es6-shim/es6-shim.min.js"></script>
<script src="node_modules/systemjs/dist/system.src.js"></script>
<script>
System.config({
defaultJSExtensions: true,
map: {
rxjs: 'node_modules/rxjs'
},
packages: {
rxjs: {
defaultExtension: 'js'
}
}
});
</script>
<script src="node_modules/angular2/bundles/angular2.dev.js"></script>
<script src="node_modules/rxjs/bundles/Rx.js"></script>
<script src="node_modules/angular2/bundles/router.dev.js"></script>
<script src="node_modules/angular2/bundles/http.dev.js"></script>
<script>
System.import('dist/bootstrap');
</script>
C:\Program Files\Android\Android Studio\jre\bin>java -version
openjdk version "1.8.0_76-release"
OpenJDK Runtime Environment (build 1.8.0_76-release-b03)
OpenJDK 64-Bit Server VM (build 25.76-b03, mixed mode)
Somehow the Studio installer would install another version under:
C:\Program Files\Android\Android Studio\jre\jre\bin>java -version
openjdk version "1.8.0_76-release"
OpenJDK Runtime Environment (build 1.8.0_76-release-b03)
OpenJDK 64-Bit Server VM (build 25.76-b03, mixed mode)
where the latest version was installed the Java DevKit installer in:
C:\Program Files\Java\jre1.8.0_121\bin>java -version
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)
Need to clean up the Android Studio so it would use the proper latest 1.8.0 versions.
According to How to set Java SDK path in AndroidStudio? one could override with a specific JDK but when I renamed
C:\Program Files\Android\Android Studio\jre\jre\
to:
C:\Program Files\Android\Android Studio\jre\oldjre\
And restarted Android Studio, it would complain that the jre was invalid.
When I tried to aecify an JDK to pick the one in C:\Program Files\Java\jre1.8.0_121\bin
or:
C:\Program Files\Java\jre1.8.0_121\
It said that these folders are invalid. So I guess that the embedded version must have some special purpose.
I have done for
private void addOrRemoveProperty(View view, int property, boolean flag){
RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams) view.getLayoutParams();
if(flag){
layoutParams.addRule(property);
}else {
layoutParams.removeRule(property);
}
view.setLayoutParams(layoutParams);
}
How to call method:
centerInParent - true
addOrRemoveProperty(mView, RelativeLayout.CENTER_IN_PARENT, true);
centerInParent - false
addOrRemoveProperty(mView, RelativeLayout.CENTER_IN_PARENT, false);
centerHorizontal - true
addOrRemoveProperty(mView, RelativeLayout.CENTER_HORIZONTAL, true);
centerHorizontal - false
addOrRemoveProperty(mView, RelativeLayout.CENTER_HORIZONTAL, false);
centerVertical - true
addOrRemoveProperty(mView, RelativeLayout.CENTER_VERTICAL, true);
centerVertical - false
addOrRemoveProperty(mView, RelativeLayout.CENTER_VERTICAL, false);
Hope this would help you.
Try this..
Dim S As String
S = "RAJAN"
Dim answer As Char
answer = S.Substring(0, 1)
Maybe an old version of the service was not uninstalled from windows
sc delete wampapache
Reinstall the service from wamp:
Wamp Tray Icon -> Apache -> Service -> Install Service
It works for me, enjoy!
This could help:
<select [(ngModel)]="selectedValue">
<option *ngFor="#c of countries" [value]="c.id">{{c.name}}</option>
</select>
In RStudio you can write directly in a cell.
Suppose your data.frame is called myDataFrame
and the row and column are called columnName
and rowName
.
Then the code would look like:
myDataFrame["rowName", "columnName"] <- value
Hope that helps!
For disabling a part of a command like a && b
, I simply created an empty script x
which is on path, so I can do things like:
mvn install && runProject
when I need to build, and
x mvn install && runProject
when not (using Ctrl + A and Ctrl + E to move to the beginning and end).
As noted in comments, another way to do that is Bash built-in :
instead of x
:
$ : Hello world, how are you? && echo "Fine."
Fine.
Be careful, with COUNT
your first item in the bag must not be null. Else you can use the function COUNT_STAR
to count all rows.
Logs are set in your settings.py
file. A new, default project, looks like this:
# A sample logging configuration. The only tangible logging
# performed by this configuration is to send an email to
# the site admins on every HTTP 500 error when DEBUG=False.
# See http://docs.djangoproject.com/en/dev/topics/logging for
# more details on how to customize your logging configuration.
LOGGING = {
'version': 1,
'disable_existing_loggers': False,
'filters': {
'require_debug_false': {
'()': 'django.utils.log.RequireDebugFalse'
}
},
'handlers': {
'mail_admins': {
'level': 'ERROR',
'filters': ['require_debug_false'],
'class': 'django.utils.log.AdminEmailHandler'
}
},
'loggers': {
'django.request': {
'handlers': ['mail_admins'],
'level': 'ERROR',
'propagate': True,
},
}
}
By default, these don't create log files. If you want those, you need to add a filename
parameter to your handlers
'applogfile': {
'level':'DEBUG',
'class':'logging.handlers.RotatingFileHandler',
'filename': os.path.join(DJANGO_ROOT, 'APPNAME.log'),
'maxBytes': 1024*1024*15, # 15MB
'backupCount': 10,
},
This will set up a rotating log that can get 15 MB in size and keep 10 historical versions.
In the loggers
section from above, you need to add applogfile
to the handlers
for your application
'loggers': {
'django.request': {
'handlers': ['mail_admins'],
'level': 'ERROR',
'propagate': True,
},
'APPNAME': {
'handlers': ['applogfile',],
'level': 'DEBUG',
},
}
This example will put your logs in your Django root in a file named APPNAME.log
Put it in a variable first and then try to test it, as shown below
ret=$?
if [ $ret -ne 0 ]; then
echo "In If"
else
echo "In Else"
fi
This should help.
Edit: If the above is not working as expected then, there is a possibility that you are not using $?
at right place. It must be the very next line after the command of which you need to catch the return status. Even if there is any other single command in between the target and you catching it's return status, you'll be retrieving the returns_status of this intermediate command and not the one you are expecting.
Always check for the obvious too. I got this error once when I accidently grabbed the wrong resource for the server's add and remove action. It can be easy to overlook.
Move import sys
outside of the try
-except
block:
import sys
try:
# ...
except ImportError:
# ...
If any of the imports before the import sys
line fails, the rest of the block is not executed, and sys
is never imported. Instead, execution jumps to the exception handling block, where you then try to access a non-existing name.
sys
is a built-in module anyway, it is always present as it holds the data structures to track imports; if importing sys
fails, you have bigger problems on your hand (as that would indicate that all module importing is broken).
If you are using posix sed
Selection for any case for a pattern (converting the searched pattern with this sed than use the converted pattern in you wanted command using regex:
echo "${MyOrgPattern} | sed "s/[aA]/[aA]/g;s/[bB]/[bB]/g;s/[cC]/[cC]/g;s/[dD]/[dD]/g;s/[eE]/[eE]/g;s/[fF]/[fF]/g;s/[gG]/[gG]/g;s/[hH]/[hH]/g;s/[iI]/[iI]/g;s/[jJ]/[jJ]/g;s/[kK]/[kK]/g;s/[lL]/[lL]/g;s/[mM]/[mM]/g;s/[nN]/[nN]/g;s/[oO]/[oO]/g;s/[pP]/[pP]/g;s/[qQ]/[qQ]/g;s/[rR]/[rR]/g;s/[sS]/[sS]/g;s/[tT]/[tT]/g;s/[uU]/[uU]/g;s/[vV]/[vV]/g;s/[wW]/[wW]/g;s/[xX]/[xX]/g;s/[yY]/[yY]/g;s/[zZ]/[zZ]/g" | read -c MyNewPattern
YourInputStreamCommand | egrep "${MyNewPattern}"
convert in lower case
sed "s/[aA]/a/g;s/[bB]/b/g;s/[cC]/c/g;s/[dD]/d/g;s/[eE]/e/g;s/[fF]/f/g;s/[gG]/g/g;s/[hH]/h/g;s/[iI]/i/g;s/j/[jJ]/g;s/[kK]/k/g;s/[lL]/l/g;s/[mM]/m/g;s/[nN]/n/g;s/[oO]/o/g;s/[pP]/p/g;s/[qQ]/q/g;s/[rR]/r/g;s/[sS]/s/g;s/[tT]/t/g;s/[uU]/u/g;s/[vV]/v/g;s/[wW]/w/g;s/[xX]/x/g;s/[yY]/y/g;s/[zZ]/z/g"
same for uppercase replace lower letter between // by upper equivalent in the sed
Have fun
looks like you want to SUM all the columns (I'm not sure where "sum 3 columns" comes from), not just TotalHoursM, so try this:
SELECT
SUM( ISNULL(TotalHoursM ,0)
+ ISNULL(TotalHoursT ,0)
+ ISNULL(TotalHoursW ,0)
+ ISNULL(TotalHoursTH ,0)
+ ISNULL(TotalHoursF ,0)
) AS TOTAL
FROM LeaveRequest
Searching with leading and trailing wildcards is going to be extremely slow on a large index. If you want to be able to search by word prefix, remove leading wildcard. If you really need to find a substring in a middle of a word, you would be better of using ngram tokenizer.
For those looking for the minimum mode, e.g:case of bi-modal distribution, using numpy.
import numpy as np
mode = np.argmax(np.bincount(your_list))
Try dropping the .value
DateTimeExtended(DateTimeExtended myNewDT)
{
this.MyDateTime = myNewDT.MyDateTime;
this.otherdata = myNewDT.otherdata;
}
Also you can use guppy module.
>>> from guppy import hpy; hp=hpy()
>>> hp.heap()
Partition of a set of 25853 objects. Total size = 3320992 bytes.
Index Count % Size % Cumulative % Kind (class / dict of class)
0 11731 45 929072 28 929072 28 str
1 5832 23 469760 14 1398832 42 tuple
2 324 1 277728 8 1676560 50 dict (no owner)
3 70 0 216976 7 1893536 57 dict of module
4 199 1 210856 6 2104392 63 dict of type
5 1627 6 208256 6 2312648 70 types.CodeType
6 1592 6 191040 6 2503688 75 function
7 199 1 177008 5 2680696 81 type
8 124 0 135328 4 2816024 85 dict of class
9 1045 4 83600 3 2899624 87 __builtin__.wrapper_descriptor
<90 more rows. Type e.g. '_.more' to view.>
And:
>>> hp.iso(1, [1], "1", (1,), {1:1}, None)
Partition of a set of 6 objects. Total size = 560 bytes.
Index Count % Size % Cumulative % Kind (class / dict of class)
0 1 17 280 50 280 50 dict (no owner)
1 1 17 136 24 416 74 list
2 1 17 64 11 480 86 tuple
3 1 17 40 7 520 93 str
4 1 17 24 4 544 97 int
5 1 17 16 3 560 100 types.NoneType
Okay, redis is pretty user friendly but there are some gotchas.
Here are just some easy commands for working with redis on Ubuntu:
install:
sudo apt-get install redis-server
start with conf:
sudo redis-server <path to conf>
sudo redis-server config/redis.conf
stop with conf:
redis-ctl shutdown
(not sure how this shuts down the pid specified in the conf. Redis must save the path to the pid somewhere on boot)
log:
tail -f /var/log/redis/redis-server.log
Also, various example confs floating around online and on this site were beyond useless. The best, sure fire way to get a compatible conf is to copy-paste the one your installation is already using. You should be able to find it here:
/etc/redis/redis.conf
Then paste it at <path to conf>
, tweak as needed and you're good to go.
Renames all .pdf
files based on current system date. For example a file named Gross Profit.pdf
is renamed to Gross Profit 2014-07-31.pdf
. If you run it tomorrow, it will rename it to Gross Profit 2014-08-01.pdf
.
You could replace the ?
with the report name Gross Profit
, but it will only rename the one report. The ?
renames everything in the Conduit
folder. The reason there are so many ?
, is that some .pdf
s have long names. If you just put 12 ?
s, then any name longer than 12 characters will be clipped off at the 13th character. Try it with 1 ?
, then try it with many ?
s. The ?
length should be a little longer or as long as the longest report name.
@ECHO OFF
SET NETWORKSOURCE=\\flcorpfile\shared\"SHORE Reports"\2014\Conduit
REN %NETWORKSOURCE%\*.pdf "????????????????????????????????????????????????? %date:~-4,4%-%date:~-10,2%-%date:~7,2%.pdf"
On some versions of Chrome, you can:
ctx.drawImage(image1, 0, 0, w, h);
Try the following:
$ch = curl_init("http://www.example-webpage.com/file.html");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
$content = curl_exec($ch);
curl_close($ch);
I would only recommend this for small files. Big files are read as a whole and are likely to produce a memory error.
EDIT: after some discussion in the comments we found out that the problem was that the server couldn't resolve the host name and the page was in addition a HTTPS resource so here comes your temporary solution (until your server admin fixes the name resolving).
what i did is just pinging graph.facebook.com to see the IP address, replace the host name with the IP address and instead specify the header manually. This however renders the SSL certificate invalid so we have to suppress peer verification.
//$url = "https://graph.facebook.com/19165649929?fields=name";
$url = "https://66.220.146.224/19165649929?fields=name";
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Host: graph.facebook.com'));
$output = curl_exec($ch);
curl_close($ch);
Keep in mind that the IP address might change and this is an error source. you should also do some error handling using curl_error();
.
Different people talk about different kinds of concurrency and parallelism in many different specific cases, so some abstractions to cover their common nature are needed.
The basic abstraction is done in computer science, where both concurrency and parallelism are attributed to the properties of programs. Here, programs are formalized descriptions of computing. Such programs need not to be in any particular language or encoding, which is implementation-specific. The existence of API/ABI/ISA/OS is irrelevant to such level of abstraction. Surely one will need more detailed implementation-specific knowledge (like threading model) to do concrete programming works, the spirit behind the basic abstraction is not changed.
A second important fact is, as general properties, concurrency and parallelism can coexist in many different abstractions.
For the general distinction, see the relevant answer for the basic view of concurrency v. parallelism. (There are also some links containing some additional sources.)
Concurrent programming and parallel programming are techniques to implement such general properties with some systems which expose programmability. The systems are usually programming languages and their implementations.
A programming language may expose the intended properties by built-in semantic rules. In most cases, such rules specify the evaluations of specific language structures (e.g. expressions) making the computation involved effectively concurrent or parallel. (More specifically, the computational effects implied by the evaluations can perfectly reflect these properties.) However, concurrent/parallel language semantics are essentially complex and they are not necessary to practical works (to implement efficient concurrent/parallel algorithms as the solutions of realistic problems). So, most traditional languages take a more conservative and simpler approach: assuming the semantics of evaluation totally sequential and serial, then providing optional primitives to allow some of the computations being concurrent and parallel. These primitives can be keywords or procedural constructs ("functions") supported by the language. They are implemented based on the interaction with hosted environments (OS, or "bare metal" hardware interface), usually opaque (not able to be derived using the language portably) to the language. Thus, in this particular kind of high-level abstractions seen by the programmers, nothing is concurrent/parallel besides these "magic" primitives and programs relying on these primitives; the programmers can then enjoy less error-prone experience of programming when concurrency/parallelism properties are not so interested.
Although primitives abstract the complex away in the most high-level abstractions, the implementations still have the extra complexity not exposed by the language feature. So, some mid-level abstractions are needed. One typical example is threading. Threading allows one or more thread of execution (or simply thread; sometimes it is also called a process, which is not necessarily the concept of a task scheduled in an OS) supported by the language implementation (the runtime). Threads are usually preemptively scheduled by the runtime, so a thread needs to know nothing about other threads. Thus, threads are natural to implement parallelism as long as they share nothing (the critical resources): just decompose computations in different threads, once the underlying implementation allows the overlapping of the computation resources during the execution, it works. Threads are also subject to concurrent accesses of shared resources: just access resources in any order meets the minimal constraints required by the algorithm, and the implementation will eventually determine when to access. In such cases, some synchronization operations may be necessary. Some languages treat threading and synchronization operations as parts of the high-level abstraction and expose them as primitives, while some other languages encourage only relatively more high-level primitives (like futures/promises) instead.
Under the level of language-specific threads, there come multitasking of the underlying hosting environment (typically, an OS). OS-level preemptive multitasking are used to implement (preemptive) multithreading. In some environments like Windows NT, the basic scheduling units (the tasks) are also "threads". To differentiate them with userspace implementation of threads mentioned above, they are called kernel threads, where "kernel" means the kernel of the OS (however, strictly speaking, this is not quite true for Windows NT; the "real" kernel is the NT executive). Kernel threads are not always 1:1 mapped to the userspace threads, although 1:1 mapping often reduces most overhead of mapping. Since kernel threads are heavyweight (involving system calls) to create/destroy/communicate, there are non 1:1 green threads in the userspace to overcome the overhead problems at the cost of the mapping overhead. The choice of mapping depending on the programming paradigm expected in the high-level abstraction. For example, when a huge number of userspace threads expected being concurrently executed (like Erlang), 1:1 mapping is never feasible.
The underlying of OS multitasking is ISA-level multitasking provided by the logical core of the processor. This is usually the most low-level public interface for programmers. Beneath this level, there may exist SMT. This is a form of more low-level multithreading implemented by the hardware, but arguably, still somewhat programmable - though it is usually only accessible by the processor manufacturer. Note the hardware design is apparently reflecting parallelism, but there is also concurrent scheduling mechanism to make the internal hardware resources being efficiently used.
In each level of "threading" mentioned above, both concurrency and parallelism are involved. Although the programming interfaces vary dramatically, all of them are subject to the properties revealed by the basic abstraction at the very beginning.
Use : GCM Network Manager
Run this to start a periodic task that will be ran even after re-boot:
PeriodicTask task = new PeriodicTask.Builder()
.setService(MyLocationService.class)
.setTag("periodic")
.setPeriod(30L)
.setPersisted(true)
.build();
mGcmNetworkManager.schedule(task);
then in onRunTask() get current location and use it (in this example, event is submitted at the end to let UI know that location was found):
public void getLastKnownLocation() {
Location lastKnownGPSLocation;
Location lastKnownNetworkLocation;
String gpsLocationProvider = LocationManager.GPS_PROVIDER;
String networkLocationProvider = LocationManager.NETWORK_PROVIDER;
try {
locationManager = (LocationManager) App.get().getSystemService(Context.LOCATION_SERVICE);
lastKnownNetworkLocation = locationManager.getLastKnownLocation(networkLocationProvider);
lastKnownGPSLocation = locationManager.getLastKnownLocation(gpsLocationProvider);
if (lastKnownGPSLocation != null) {
Log.i(TAG, "lastKnownGPSLocation is used.");
this.mCurrentLocation = lastKnownGPSLocation;
} else if (lastKnownNetworkLocation != null) {
Log.i(TAG, "lastKnownNetworkLocation is used.");
this.mCurrentLocation = lastKnownNetworkLocation;
} else {
Log.e(TAG, "lastLocation is not known.");
return;
}
LocationChangedEvent event = new LocationChangedEvent();
event.setLocation(mCurrentLocation);
EventHelper.publishEvent(event);
} catch (SecurityException sex) {
Log.e(TAG, "Location permission is not granted!");
}
return;
}
The MyLocationService in whole:
public class MyLocationService extends GcmTaskService {
private static final String TAG = MyLocationService.class.getSimpleName();
private LocationManager locationManager;
private Location mCurrentLocation;
public static final String TASK_GET_LOCATION_ONCE="location_oneoff_task";
public static final String TASK_GET_LOCATION_PERIODIC="location_periodic_task";
private static final int RC_PLAY_SERVICES = 123;
@Override
public void onInitializeTasks() {
// When your package is removed or updated, all of its network tasks are cleared by
// the GcmNetworkManager. You can override this method to reschedule them in the case of
// an updated package. This is not called when your application is first installed.
//
// This is called on your application's main thread.
startPeriodicLocationTask(TASK_GET_LOCATION_PERIODIC,
30L, null);
}
@Override
public int onRunTask(TaskParams taskParams) {
Log.d(TAG, "onRunTask: " + taskParams.getTag());
String tag = taskParams.getTag();
Bundle extras = taskParams.getExtras();
// Default result is success.
int result = GcmNetworkManager.RESULT_SUCCESS;
switch (tag) {
case TASK_GET_LOCATION_ONCE:
getLastKnownLocation();
break;
case TASK_GET_LOCATION_PERIODIC:
getLastKnownLocation();
break;
}
return result;
}
public void getLastKnownLocation() {
Location lastKnownGPSLocation;
Location lastKnownNetworkLocation;
String gpsLocationProvider = LocationManager.GPS_PROVIDER;
String networkLocationProvider = LocationManager.NETWORK_PROVIDER;
try {
locationManager = (LocationManager) App.get().getSystemService(Context.LOCATION_SERVICE);
lastKnownNetworkLocation = locationManager.getLastKnownLocation(networkLocationProvider);
lastKnownGPSLocation = locationManager.getLastKnownLocation(gpsLocationProvider);
if (lastKnownGPSLocation != null) {
Log.i(TAG, "lastKnownGPSLocation is used.");
this.mCurrentLocation = lastKnownGPSLocation;
} else if (lastKnownNetworkLocation != null) {
Log.i(TAG, "lastKnownNetworkLocation is used.");
this.mCurrentLocation = lastKnownNetworkLocation;
} else {
Log.e(TAG, "lastLocation is not known.");
return;
}
LocationChangedEvent event = new LocationChangedEvent();
event.setLocation(mCurrentLocation);
EventHelper.publishEvent(event);
} catch (SecurityException sex) {
Log.e(TAG, "Location permission is not granted!");
}
return;
}
public static void startOneOffLocationTask(String tag, Bundle extras) {
Log.d(TAG, "startOneOffLocationTask");
GcmNetworkManager mGcmNetworkManager = GcmNetworkManager.getInstance(App.get());
OneoffTask.Builder taskBuilder = new OneoffTask.Builder()
.setService(MyLocationService.class)
.setTag(tag);
if (extras != null) taskBuilder.setExtras(extras);
OneoffTask task = taskBuilder.build();
mGcmNetworkManager.schedule(task);
}
public static void startPeriodicLocationTask(String tag, Long period, Bundle extras) {
Log.d(TAG, "startPeriodicLocationTask");
GcmNetworkManager mGcmNetworkManager = GcmNetworkManager.getInstance(App.get());
PeriodicTask.Builder taskBuilder = new PeriodicTask.Builder()
.setService(MyLocationService.class)
.setTag(tag)
.setPeriod(period)
.setPersisted(true)
.setRequiredNetwork(Task.NETWORK_STATE_CONNECTED);
if (extras != null) taskBuilder.setExtras(extras);
PeriodicTask task = taskBuilder.build();
mGcmNetworkManager.schedule(task);
}
public static boolean checkPlayServicesAvailable(Activity activity) {
GoogleApiAvailability availability = GoogleApiAvailability.getInstance();
int resultCode = availability.isGooglePlayServicesAvailable(App.get());
if (resultCode != ConnectionResult.SUCCESS) {
if (availability.isUserResolvableError(resultCode)) {
// Show dialog to resolve the error.
availability.getErrorDialog(activity, resultCode, RC_PLAY_SERVICES).show();
}
return false;
} else {
return true;
}
}
Also add these 2 to the AndroidManifest.xml:
<manifest...
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<application...
<service
android:name=".api.location.MyLocationService"
android:exported="true"
android:permission="com.google.android.gms.permission.BIND_NETWORK_TASK_SERVICE">
<intent-filter>
<action android:name="com.google.android.gms.gcm.ACTION_TASK_READY" />
</intent-filter>
</service>
Kotlin has an one-liner
context.cacheDir.deleteRecursively()
In addition to Alexander Lunas answer ... If you want to add more than one argument just use:
<Route path="/details/:id/:title" component={DetailsPage}/>
export default class DetailsPage extends Component {
render() {
return(
<div>
<h2>{this.props.match.params.id}</h2>
<h3>{this.props.match.params.title}</h3>
</div>
)
}
}
I've been coding for about 2 weeks and created a simple logic to validate an integer has been accepted.
Console.WriteLine("How many numbers do you want to enter?"); // request a number
string input = Console.ReadLine(); // set the input as a string variable
int numberTotal; // declare an int variable
if (!int.TryParse(input, out numberTotal)) // process if input was an invalid number
{
while (numberTotal < 1) // numberTotal is set to 0 by default if no number is entered
{
Console.WriteLine(input + " is an invalid number."); // error message
int.TryParse(Console.ReadLine(), out numberTotal); // allows the user to input another value
}
} // this loop will repeat until numberTotal has an int set to 1 or above
you could also use the above in a FOR loop if you prefer by not declaring an action as the third parameter of the loop, such as
Console.WriteLine("How many numbers do you want to enter?");
string input2 = Console.ReadLine();
if (!int.TryParse(input2, out numberTotal2))
{
for (int numberTotal2 = 0; numberTotal2 < 1;)
{
Console.WriteLine(input2 + " is an invalid number.");
int.TryParse(Console.ReadLine(), out numberTotal2);
}
}
if you don't want a loop, simply remove the entire loop brace
There's the android:label for the application, and the android:label for the launch activity. The former is what you see under Settings -> Applications -> Manage Applications on your device. The latter is what you see under Applications, and by extension in any shortcut to your application, e.g.
<application
android:label="@string/turns_up_in_manage_apps" >
<activity
android:name=".MainActivity"
android:label="@string/turns_up_in_shortcuts" >
...
</activity>
</application>
I use this method for purely counting how many lines in a file. What is the downside of doing this verses the other answers. I'm seeing many lines as opposed to my two line solution. I'm guessing there's a reason nobody does this.
$lines = count(file('your.file'));
echo $lines;
binary search runs in O(logn) time whereas linear search runs in O(n) times thus binary search has better performance
Use simple CSS height: 100%; matches the height of the parent and using height: 100vh matches the height of the viewport.
Use vh instead of %;
Alternative to @Peter Monks.
If the number in the 'in' statement is small and fixed.
DECLARE @var1 varchar(30), @var2 varchar(30), @var3 varchar(30);
SET @var1 = 'james';
SET @var2 = 'same';
SET @var3 = 'dogcat';
Select * FROM Database Where x in (@var1,@var2,@var3);
One notable difference in Python 2 is that if you're using ensure_ascii=False
, dump
will properly write UTF-8 encoded data into the file (unless you used 8-bit strings with extended characters that are not UTF-8):
dumps
on the other hand, with ensure_ascii=False
can produce a str
or unicode
just depending on what types you used for strings:
Serialize obj to a JSON formatted str using this conversion table. If ensure_ascii is False, the result may contain non-ASCII characters and the return value may be a
unicode
instance.
(emphasis mine). Note that it may still be a str
instance as well.
Thus you cannot use its return value to save the structure into file without checking which
format was returned and possibly playing with unicode.encode
.
This of course is not valid concern in Python 3 any more, since there is no more this 8-bit/Unicode confusion.
As for load
vs loads
, load
considers the whole file to be one JSON document, so you cannot use it to read multiple newline limited JSON documents from a single file.
I had more luck using like that :
let string = '';
readstream
.on('data', (buf) => string += buf.toString())
.on('end', () => console.log(string));
I use node v9.11.1
and the readstream
is the response from a http.get
callback.
The other queries are all going base on any ONE of the conditions qualifying and it will return a record... if you want to make sure the BOTH columns of table A are matched, you'll have to do something like...
select
tA.Col1,
tA.Col2,
tB.Val
from
TableA tA
join TableB tB
on ( tA.Col1 = tB.Col1 OR tA.Col1 = tB.Col2 )
AND ( tA.Col2 = tB.Col1 OR tA.Col2 = tB.Col2 )
Actions act = new Actions(driver);
act.keyDown(Keys.CONTROL).sendKeys("a").keyUp(Keys.CONTROL).build().perform();
Another point to mention is that you should ensure that your equality function is as you expect. You should override the equals method to set up what properties of your object have to match for two instances to be considered equal.
Then you can just do mylist.contains(item)
I have had to unpack a .ab
-file, too and found this post while looking for an answer. My suggested solution is Android Backup Extractor, a free Java tool for Windows, Linux and Mac OS.
Make sure to take a look at the README, if you encounter a problem. You might have to download further files, if your .ab
-file is password-protected.
Usage:java -jar abe.jar [-debug] [-useenv=yourenv] unpack <backup.ab> <backup.tar> [password]
Example:
Let's say, you've got a file test.ab
, which is not password-protected, you're using Windows and want the resulting .tar
-Archive to be called test.tar
. Then your command should be:
java.exe -jar abe.jar unpack test.ab test.tar ""
str = "aaaaabbbb"
newstr = str[-4:]
You could have a redirect servlet. In you web.xml you'd have:
<servlet>
<servlet-name>images</servlet-name>
<servlet-class>com.example.images.ImageServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>images</servlet-name>
<url-pattern>/images/*</url-pattern>
</servlet-mapping>
All your images would be in "/images", which would be intercepted by the servlet. It would then read in the relevant file in whatever folder and serve it right back out. For example, say you have a gif in your images folder, c:\Server_Images\smilie.gif. In the web page would be <img src="http:/example.com/app/images/smilie.gif"...
. In the servlet, HttpServletRequest.getPathInfo()
would yield "/smilie.gif". Which the servlet would find in the folder.