At first glance your original attempt seems pretty close. I'm assuming that clockDate is a DateTime fields so try this:
IF (NOT EXISTS(SELECT * FROM Clock WHERE cast(clockDate as date) = '08/10/2012')
AND userName = 'test')
BEGIN
INSERT INTO Clock(clockDate, userName, breakOut)
VALUES(GetDate(), 'test', GetDate())
END
ELSE
BEGIN
UPDATE Clock
SET breakOut = GetDate()
WHERE Cast(clockDate AS Date) = '08/10/2012' AND userName = 'test'
END
Note that getdate gives you the current date. If you are trying to compare to a date (without the time) you need to cast or the time element will cause the compare to fail.
If clockDate is NOT datetime field (just date), then the SQL engine will do it for you - no need to cast on a set/insert statement.
IF (NOT EXISTS(SELECT * FROM Clock WHERE clockDate = '08/10/2012')
AND userName = 'test')
BEGIN
INSERT INTO Clock(clockDate, userName, breakOut)
VALUES(GetDate(), 'test', GetDate())
END
ELSE
BEGIN
UPDATE Clock
SET breakOut = GetDate()
WHERE clockDate = '08/10/2012' AND userName = 'test'
END
As others have pointed out, the merge statement is another way to tackle this same logic. However, in some cases, especially with large data sets, the merge statement can be prohibitively slow, causing a lot of tran log activity. So knowing how to logic it out as shown above is still a valid technique.
Cocos2d-x within your classic Android (Java) app tuto http://jpsarda.tumblr.com/post/26000816688/integrate-cocos2d-x-c-into-an-android-application
You could use:
git merge-file
Tip: https://www.kernel.org/pub/software/scm/git/docs/git-merge-file.html
Simple debug command:
ansible -i inventory/hosts.yaml -m debug -a "var=hostvars[inventory_hostname]" all
output:
"hostvars[inventory_hostname]": {
"ansible_check_mode": false,
"ansible_diff_mode": false,
"ansible_facts": {},
"ansible_forks": 5,
"ansible_host": "192.168.10.125",
"ansible_inventory_sources": [
"/root/workspace/ansible-minicros/inventory/hosts.yaml"
],
"ansible_playbook_python": "/usr/bin/python2",
"ansible_port": 65532,
"ansible_verbosity": 0,
"ansible_version": {
"full": "2.8.5",
"major": 2,
"minor": 8,
"revision": 5,
"string": "2.8.5"
},
get host ip address:
ansible -i inventory/hosts.yaml -m debug -a "var=hostvars[inventory_hostname].ansible_host" all
zk01 | SUCCESS => {
"hostvars[inventory_hostname].ansible_host": "192.168.10.125"
}
Current Solution
Create the folder project/app/src/main/jniLibs
, and then put your *.so
files within their abi folders in that location. E.g.,
project/
+--libs/
| +-- *.jar <-- if your library has jar files, they go here
+--src/
+-- main/
+-- AndroidManifest.xml
+-- java/
+-- jniLibs/
+-- arm64-v8a/ <-- ARM 64bit
¦ +-- yourlib.so
+-- armeabi-v7a/ <-- ARM 32bit
¦ +-- yourlib.so
+-- x86/ <-- Intel 32bit
+-- yourlib.so
Deprecated solution
Add both code snippets in your module gradle.build file as a dependency:
compile fileTree(dir: "$buildDir/native-libs", include: 'native-libs.jar')
How to create this custom jar:
task nativeLibsToJar(type: Jar, description: 'create a jar archive of the native libs') {
destinationDir file("$buildDir/native-libs")
baseName 'native-libs'
from fileTree(dir: 'libs', include: '**/*.so')
into 'lib/'
}
tasks.withType(JavaCompile) {
compileTask -> compileTask.dependsOn(nativeLibsToJar)
}
Same answer can also be found in related question: Include .so library in apk in android studio
The by far the simplest approach is:
yourdf.drop(['columnheading1', 'columnheading2'], axis=1, inplace=True)
or Just %~F will give you the full path and full file name.
For example, if you want to register all *.ax files in the current directory....
FOR /R C:. %F in (*.ax) do regsvr32 "%~F"
This works quite nicely in Win7 (64bit) :-)
To find all files modified in the last 24 hours use the one below. The -1 here means changed 1 day or less ago.
find . -mtime -1 -ls
Set 'center_horizontal' and 'center_vertical' or just 'center' of the layout_gravity attribute of the widget
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MovieActivity"
android:id="@+id/mainContainerMovie"
>
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#3a3f51b5"
/>
<ProgressBar
android:id="@+id/movieprogressbar"
style="?android:attr/progressBarStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical|center_horizontal" />
</FrameLayout>
I can spot a few different problems with this. However, in the interest of time, try this chunk of code instead:
<?php require 'db.php'; ?> <?php if (isset($_POST['search'])) { $limit = $_POST['limit']; $country = $_POST['country']; $state = $_POST['state']; $city = $_POST['city']; $data = mysqli_query( $link, "SELECT * FROM proxies WHERE country = '{$country}' AND state = '{$state}' AND city = '{$city}' LIMIT {$limit}" ); while ($assoc = mysqli_fetch_assoc($data)) { $proxy = $assoc['proxy']; ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Sock5Proxies</title> <meta http-equiv="Content-Type" content="text/html;charset=utf-8" /> <link href="./style.css" rel="stylesheet" type="text/css" /> <link href="./buttons.css" rel="stylesheet" type="text/css" /> </head> <body> <center> <h1>Sock5Proxies</h1> </center> <div id="wrapper"> <div id="header"> <ul id="nav"> <li class="active"><a href="index.html"><span></span>Home</a></li> <li><a href="leads.html"><span></span>Leads</a></li> <li><a href="payout.php"><span></span>Pay out</a></li> <li><a href="contact.html"><span></span>Contact</a></li> <li><a href="logout.php"><span></span>Logout</a></li> </ul> </div> <div id="content"> <div id="center"> <table cellpadding="0" cellspacing="0" style="width:690px"> <thead> <tr> <th width="75" class="first">Proxy</th> <th width="50" class="last">Status</th> </tr> </thead> <tbody> <tr class="rowB"> <td class="first"> <?php echo $proxy ?> </td> <td class="last">Check</td> </tr> </tbody> </table> </div> </div> <div id="footer"></div> <span id="about">Version 1.0</span> </div> </body> </html> <?php } } ?> <html> <form action="" method="POST"> <input type="text" name="limit" placeholder="10" /><br> <input type="text" name="country" placeholder="Country" /><br> <input type="text" name="state" placeholder="State" /><br> <input type="text" name="city" placeholder="City" /><br> <input type="submit" name="search" value="Search" /><br> </form> </html>
There are two possible solutions for these kind of situations:
Add a unique suffix to the image src
to force browser downloading it again, like this:
var img = new Image();
img.src = "img.jpg?_="+(new Date().getTime());
img.onload = function () {
alert("image is loaded");
}
In this code every time adding current timestamp to the end of the image URL you make it unique and browser will download the image again
Verifies that you directory has been converted into an Application is your IIS.
. given a path, how can we recursively create all the folders necessary to create the file .. for that path
Creates all directories and subdirectories as specified by path.
Directory.CreateDirectory(path);
then you may create a file.
INTRO: This answer was written in a time when Numpy was version 1.11 and behaviour of NAT comparison was supposed to change since version 1.12. Clearly that wasn't the case and the second part of answer became wrong. The first part of answer may be not applicable for new versions of numpy. Be sure you've checked MSeifert's answers below.
import numpy as np
nat = np.datetime64('NaT')
def nat_check(nat):
return nat == np.datetime64('NaT')
nat_check(nat)
Out[4]: FutureWarning: In the future, 'NAT == x' and 'x == NAT' will always be False.
True
nat_check(nat)
Out[5]: True
If you want to suppress the warning you can use the catch_warnings context manager:
import numpy as np
import warnings
nat = np.datetime64('NaT')
def nat_check(nat):
with warnings.catch_warnings():
warnings.simplefilter("ignore")
return nat == np.datetime64('NaT')
nat_check(nat)
Out[5]: True
And finally you might check numpy version to handle changed behavior since version 1.12.0:
def nat_check(nat):
if [int(x) for x in np.__version__.split('.')[:-1]] > [1, 11]:
return nat != nat
with warnings.catch_warnings():
warnings.simplefilter("ignore")
return nat == np.datetime64('NaT')
isnat
function since version 1.13.
If using conda, you can get the env prefix using os.environ["CONDA_PREFIX"]
.
You haven't included package declarations in the OP but it is possible that neither @SpringBootApplication
nor @ComponentScan
are scanning for your @Component
.
The @ComponentScan
Javadoc states:
Either
basePackageClasses
orbasePackages
(or its aliasvalue
) may be specified to define specific packages to scan. If specific packages are not defined, scanning will occur from the package of the class that declares this annotation.
ISTR wasting a lot of time on this before and found it easiest to simply move my application class to the highest package in my app's package tree.
More recently I encountered a gotcha were the property was being read before the value insertion had been done. Jesse's answer helped as @PostConstruct
seems to be the earliest you can read the inserted values, and of course you should let Spring call this.
if you use fragment u should use
getActivity().onBackPressed();
if you use single activity u can use
finish();
I generally like to create my own function as has been stated above. However I like to add a few things to it so that if I accidentally leave in debugging code I can quickly find it in the code base. Maybe this will help someone else out.
function _pr($d) {
echo "<div style='border: 1px solid#ccc; padding: 10px;'>";
echo '<strong>' . debug_backtrace()[0]['file'] . ' ' . debug_backtrace()[0]['line'] . '</strong>';
echo "</div>";
echo '<pre>';
if(is_array($d)) {
print_r($d);
} else if(is_object($d)) {
var_dump($d);
}
echo '</pre>';
}
Try this:
git fetch --all
git reset --hard origin/master
Explanation:
git fetch
downloads the latest from remote without trying to merge or rebase anything.
Please let me know if you have any questions!
The abort
function does this. For example:
abort("Message goes here")
Note: the abort
message will be written to STDERR
as opposed to puts
which will write to STDOUT
.
As to @Marc's answer, I don't think VC uses the path from the OS. Did you add the path to VC's library paths. I usually add the DLLs to the project and copy if newer on the build and that works very well for me.
Now with HikcariCp as default connection pooling with new version of spring boot.It can be directly done as shown below.
@Configuration
public class PurchaseOrderDbConfig {
@Bean
@ConfigurationProperties(prefix = "com.sysco.purchaseorder.datasoure")
public DataSource dataSource() {
return DataSourceBuilder.create().build();
}
}
application.yml
com:
sysco:
purchaseorder:
datasoure:
driverClassName: com.mysql.jdbc.Driver
jdbcUrl: jdbc:mysql://localhost:3306/purchaseorder
username: root
password: root123
idleTimeout: 600000
If you will print the value of idle timeout value
ApplicationContext context=SpringApplication.run(ApiBluePrint.class, args);
HikariDataSource dataSource=(HikariDataSource) context.getBean(DataSource.class);
System.out.println(dataSource.getIdleTimeout());
you will get value as 600000 where as default value is 300000 if you dont define any custom value
I use Soda Dark 3 with icons enabled. So by just renaming it erases all the icons enabled with it. So I just leave the Default as it is and created a new file Soda Dark 3.sublime-theme
and just have the following in the content
[
{
"class": "label_control",
"color": [150, 25, 25],
"shadow_color": [24, 24, 24],
"shadow_offset": [0, -1],
"font.size": 16,
"font.bold": true
},
]
So in Mac is it at /Users/gugovind/Library/Application Support/Sublime Text 3/Packages/User/
you can use
<Image source={{uri: 'imagename'}} style={{width: 40, height: 40}} />
to show image.
from:
https://facebook.github.io/react-native/docs/images.html#images-from-hybrid-app-s-resources
Call the is_path_exists_or_creatable()
function defined below.
Strictly Python 3. That's just how we roll.
The question of "How do I test pathname validity and, for valid pathnames, the existence or writability of those paths?" is clearly two separate questions. Both are interesting, and neither have received a genuinely satisfactory answer here... or, well, anywhere that I could grep.
vikki's answer probably hews the closest, but has the remarkable disadvantages of:
We're gonna fix all that.
Before hurling our fragile meat suits into the python-riddled moshpits of pain, we should probably define what we mean by "pathname validity." What defines validity, exactly?
By "pathname validity," we mean the syntactic correctness of a pathname with respect to the root filesystem of the current system – regardless of whether that path or parent directories thereof physically exist. A pathname is syntactically correct under this definition if it complies with all syntactic requirements of the root filesystem.
By "root filesystem," we mean:
/
).%HOMEDRIVE%
, the colon-suffixed drive letter containing the current Windows installation (typically but not necessarily C:
).The meaning of "syntactic correctness," in turn, depends on the type of root filesystem. For ext4
(and most but not all POSIX-compatible) filesystems, a pathname is syntactically correct if and only if that pathname:
\x00
in Python). This is a hard requirement for all POSIX-compatible filesystems.'a'*256
in Python). A path component is a longest substring of a pathname containing no /
character (e.g., bergtatt
, ind
, i
, and fjeldkamrene
in the pathname /bergtatt/ind/i/fjeldkamrene
).Syntactic correctness. Root filesystem. That's it.
Validating pathnames in Python is surprisingly non-intuitive. I'm in firm agreement with Fake Name here: the official os.path
package should provide an out-of-the-box solution for this. For unknown (and probably uncompelling) reasons, it doesn't. Fortunately, unrolling your own ad-hoc solution isn't that gut-wrenching...
O.K., it actually is. It's hairy; it's nasty; it probably chortles as it burbles and giggles as it glows. But what you gonna do? Nuthin'.
We'll soon descend into the radioactive abyss of low-level code. But first, let's talk high-level shop. The standard os.stat()
and os.lstat()
functions raise the following exceptions when passed invalid pathnames:
FileNotFoundError
.WindowsError
whose winerror
attribute is 123
(i.e., ERROR_INVALID_NAME
).'\x00'
), instances of TypeError
.OSError
whose errcode
attribute is:
errno.ERANGE
. (This appears to be an OS-level bug, otherwise referred to as "selective interpretation" of the POSIX standard.)errno.ENAMETOOLONG
.Crucially, this implies that only pathnames residing in existing directories are validatable. The os.stat()
and os.lstat()
functions raise generic FileNotFoundError
exceptions when passed pathnames residing in non-existing directories, regardless of whether those pathnames are invalid or not. Directory existence takes precedence over pathname invalidity.
Does this mean that pathnames residing in non-existing directories are not validatable? Yes – unless we modify those pathnames to reside in existing directories. Is that even safely feasible, however? Shouldn't modifying a pathname prevent us from validating the original pathname?
To answer this question, recall from above that syntactically correct pathnames on the ext4
filesystem contain no path components (A) containing null bytes or (B) over 255 bytes in length. Hence, an ext4
pathname is valid if and only if all path components in that pathname are valid. This is true of most real-world filesystems of interest.
Does that pedantic insight actually help us? Yes. It reduces the larger problem of validating the full pathname in one fell swoop to the smaller problem of only validating all path components in that pathname. Any arbitrary pathname is validatable (regardless of whether that pathname resides in an existing directory or not) in a cross-platform manner by following the following algorithm:
/troldskog/faren/vild
into the list ['', 'troldskog', 'faren', 'vild']
)./troldskog
) .os.stat()
or os.lstat()
. If that pathname and hence that component is invalid, this call is guaranteed to raise an exception exposing the type of invalidity rather than a generic FileNotFoundError
exception. Why? Because that pathname resides in an existing directory. (Circular logic is circular.)Is there a directory guaranteed to exist? Yes, but typically only one: the topmost directory of the root filesystem (as defined above).
Passing pathnames residing in any other directory (and hence not guaranteed to exist) to os.stat()
or os.lstat()
invites race conditions, even if that directory was previously tested to exist. Why? Because external processes cannot be prevented from concurrently removing that directory after that test has been performed but before that pathname is passed to os.stat()
or os.lstat()
. Unleash the dogs of mind-fellating insanity!
There exists a substantial side benefit to the above approach as well: security. (Isn't that nice?) Specifically:
Front-facing applications validating arbitrary pathnames from untrusted sources by simply passing such pathnames to
os.stat()
oros.lstat()
are susceptible to Denial of Service (DoS) attacks and other black-hat shenanigans. Malicious users may attempt to repeatedly validate pathnames residing on filesystems known to be stale or otherwise slow (e.g., NFS Samba shares); in that case, blindly statting incoming pathnames is liable to either eventually fail with connection timeouts or consume more time and resources than your feeble capacity to withstand unemployment.
The above approach obviates this by only validating the path components of a pathname against the root directory of the root filesystem. (If even that's stale, slow, or inaccessible, you've got larger problems than pathname validation.)
Lost? Great. Let's begin. (Python 3 assumed. See "What Is Fragile Hope for 300, leycec?")
import errno, os
# Sadly, Python fails to provide the following magic number for us.
ERROR_INVALID_NAME = 123
'''
Windows-specific error code indicating an invalid pathname.
See Also
----------
https://docs.microsoft.com/en-us/windows/win32/debug/system-error-codes--0-499-
Official listing of all such codes.
'''
def is_pathname_valid(pathname: str) -> bool:
'''
`True` if the passed pathname is a valid pathname for the current OS;
`False` otherwise.
'''
# If this pathname is either not a string or is but is empty, this pathname
# is invalid.
try:
if not isinstance(pathname, str) or not pathname:
return False
# Strip this pathname's Windows-specific drive specifier (e.g., `C:\`)
# if any. Since Windows prohibits path components from containing `:`
# characters, failing to strip this `:`-suffixed prefix would
# erroneously invalidate all valid absolute Windows pathnames.
_, pathname = os.path.splitdrive(pathname)
# Directory guaranteed to exist. If the current OS is Windows, this is
# the drive to which Windows was installed (e.g., the "%HOMEDRIVE%"
# environment variable); else, the typical root directory.
root_dirname = os.environ.get('HOMEDRIVE', 'C:') \
if sys.platform == 'win32' else os.path.sep
assert os.path.isdir(root_dirname) # ...Murphy and her ironclad Law
# Append a path separator to this directory if needed.
root_dirname = root_dirname.rstrip(os.path.sep) + os.path.sep
# Test whether each path component split from this pathname is valid or
# not, ignoring non-existent and non-readable path components.
for pathname_part in pathname.split(os.path.sep):
try:
os.lstat(root_dirname + pathname_part)
# If an OS-specific exception is raised, its error code
# indicates whether this pathname is valid or not. Unless this
# is the case, this exception implies an ignorable kernel or
# filesystem complaint (e.g., path not found or inaccessible).
#
# Only the following exceptions indicate invalid pathnames:
#
# * Instances of the Windows-specific "WindowsError" class
# defining the "winerror" attribute whose value is
# "ERROR_INVALID_NAME". Under Windows, "winerror" is more
# fine-grained and hence useful than the generic "errno"
# attribute. When a too-long pathname is passed, for example,
# "errno" is "ENOENT" (i.e., no such file or directory) rather
# than "ENAMETOOLONG" (i.e., file name too long).
# * Instances of the cross-platform "OSError" class defining the
# generic "errno" attribute whose value is either:
# * Under most POSIX-compatible OSes, "ENAMETOOLONG".
# * Under some edge-case OSes (e.g., SunOS, *BSD), "ERANGE".
except OSError as exc:
if hasattr(exc, 'winerror'):
if exc.winerror == ERROR_INVALID_NAME:
return False
elif exc.errno in {errno.ENAMETOOLONG, errno.ERANGE}:
return False
# If a "TypeError" exception was raised, it almost certainly has the
# error message "embedded NUL character" indicating an invalid pathname.
except TypeError as exc:
return False
# If no exception was raised, all path components and hence this
# pathname itself are valid. (Praise be to the curmudgeonly python.)
else:
return True
# If any other exception was raised, this is an unrelated fatal issue
# (e.g., a bug). Permit this exception to unwind the call stack.
#
# Did we mention this should be shipped with Python already?
Done. Don't squint at that code. (It bites.)
Testing the existence or creatability of possibly invalid pathnames is, given the above solution, mostly trivial. The little key here is to call the previously defined function before testing the passed path:
def is_path_creatable(pathname: str) -> bool:
'''
`True` if the current user has sufficient permissions to create the passed
pathname; `False` otherwise.
'''
# Parent directory of the passed path. If empty, we substitute the current
# working directory (CWD) instead.
dirname = os.path.dirname(pathname) or os.getcwd()
return os.access(dirname, os.W_OK)
def is_path_exists_or_creatable(pathname: str) -> bool:
'''
`True` if the passed pathname is a valid pathname for the current OS _and_
either currently exists or is hypothetically creatable; `False` otherwise.
This function is guaranteed to _never_ raise exceptions.
'''
try:
# To prevent "os" module calls from raising undesirable exceptions on
# invalid pathnames, is_pathname_valid() is explicitly called first.
return is_pathname_valid(pathname) and (
os.path.exists(pathname) or is_path_creatable(pathname))
# Report failure on non-fatal filesystem complaints (e.g., connection
# timeouts, permissions issues) implying this path to be inaccessible. All
# other exceptions are unrelated fatal issues and should not be caught here.
except OSError:
return False
Done and done. Except not quite.
There exists a caveat. Of course there does.
As the official os.access()
documentation admits:
Note: I/O operations may fail even when
os.access()
indicates that they would succeed, particularly for operations on network filesystems which may have permissions semantics beyond the usual POSIX permission-bit model.
To no one's surprise, Windows is the usual suspect here. Thanks to extensive use of Access Control Lists (ACL) on NTFS filesystems, the simplistic POSIX permission-bit model maps poorly to the underlying Windows reality. While this (arguably) isn't Python's fault, it might nonetheless be of concern for Windows-compatible applications.
If this is you, a more robust alternative is wanted. If the passed path does not exist, we instead attempt to create a temporary file guaranteed to be immediately deleted in the parent directory of that path – a more portable (if expensive) test of creatability:
import os, tempfile
def is_path_sibling_creatable(pathname: str) -> bool:
'''
`True` if the current user has sufficient permissions to create **siblings**
(i.e., arbitrary files in the parent directory) of the passed pathname;
`False` otherwise.
'''
# Parent directory of the passed path. If empty, we substitute the current
# working directory (CWD) instead.
dirname = os.path.dirname(pathname) or os.getcwd()
try:
# For safety, explicitly close and hence delete this temporary file
# immediately after creating it in the passed path's parent directory.
with tempfile.TemporaryFile(dir=dirname): pass
return True
# While the exact type of exception raised by the above function depends on
# the current version of the Python interpreter, all such types subclass the
# following exception superclass.
except EnvironmentError:
return False
def is_path_exists_or_creatable_portable(pathname: str) -> bool:
'''
`True` if the passed pathname is a valid pathname on the current OS _and_
either currently exists or is hypothetically creatable in a cross-platform
manner optimized for POSIX-unfriendly filesystems; `False` otherwise.
This function is guaranteed to _never_ raise exceptions.
'''
try:
# To prevent "os" module calls from raising undesirable exceptions on
# invalid pathnames, is_pathname_valid() is explicitly called first.
return is_pathname_valid(pathname) and (
os.path.exists(pathname) or is_path_sibling_creatable(pathname))
# Report failure on non-fatal filesystem complaints (e.g., connection
# timeouts, permissions issues) implying this path to be inaccessible. All
# other exceptions are unrelated fatal issues and should not be caught here.
except OSError:
return False
Note, however, that even this may not be enough.
Thanks to User Access Control (UAC), the ever-inimicable Windows Vista and all subsequent iterations thereof blatantly lie about permissions pertaining to system directories. When non-Administrator users attempt to create files in either the canonical C:\Windows
or C:\Windows\system32
directories, UAC superficially permits the user to do so while actually isolating all created files into a "Virtual Store" in that user's profile. (Who could have possibly imagined that deceiving users would have harmful long-term consequences?)
This is crazy. This is Windows.
Dare we? It's time to test-drive the above tests.
Since NULL is the only character prohibited in pathnames on UNIX-oriented filesystems, let's leverage that to demonstrate the cold, hard truth – ignoring non-ignorable Windows shenanigans, which frankly bore and anger me in equal measure:
>>> print('"foo.bar" valid? ' + str(is_pathname_valid('foo.bar')))
"foo.bar" valid? True
>>> print('Null byte valid? ' + str(is_pathname_valid('\x00')))
Null byte valid? False
>>> print('Long path valid? ' + str(is_pathname_valid('a' * 256)))
Long path valid? False
>>> print('"/dev" exists or creatable? ' + str(is_path_exists_or_creatable('/dev')))
"/dev" exists or creatable? True
>>> print('"/dev/foo.bar" exists or creatable? ' + str(is_path_exists_or_creatable('/dev/foo.bar')))
"/dev/foo.bar" exists or creatable? False
>>> print('Null byte exists or creatable? ' + str(is_path_exists_or_creatable('\x00')))
Null byte exists or creatable? False
Beyond sanity. Beyond pain. You will find Python portability concerns.
I haven't had a problem just using Unix-style path separators, even on Windows (though it is good practice to check File.separatorChar).
The technique of using ClassLoader.getResource() is best for read-only resources that are going to be loaded from JAR files. Sometimes, you can programmatically determine the application directory, which is useful for admin-configurable files or server applications. (Of course, user-editable files should be stored somewhere in the System.getProperty("user.home") directory.)
I've spent on this problem much time and as for me (for Intellij IDEA) the solution is to specify right path to res directory:
And don't forget to check all the paths in this tab!
I hope it will be helpful for somebody!
exec is shelling to the operating system, and unless the OS has some special way of knowing how to execute a file, then it's going to default to treating it as a shell script or similar. In this case, it has no idea how to run your php file. If this script absolutely has to be executed from a shell, then either execute php passing the filename as a parameter, e.g
exec ('/usr/local/bin/php -f /opt/lampp/htdocs/.../name.php)') ;
or use the punct at the top of your php script
#!/usr/local/bin/php
<?php ... ?>
If you see red circle on the icon of Java files, and got warning like "cannot find declaration to go to". Then you can do something below:
It works for me. in Windows 7, Intellij 2016.1.1
From remote repo:
svn log -v -r 42 --stop-on-copy --non-interactive --no-auth-cache --username USERNAME --password PASSWORD http://repourl/projectname/
I got around this by upgrading both the version of Angular that I was using (from v8 -> v9) and the version of TypeScript (from 3.5.3 -> latest).
There seem to be some js libraries that can handle .docx (not .doc) to html conversion client-side (in no particular order):
https://github.com/lalalic/docx2html — docx to html, most elements are supported
https://github.com/mwilliamson/mammoth.js — supports headings, lists, tables, endnotes, footnotes, images and text boxes
https://www.npmjs.com/package/docx2html — Converts DOCX documents to HTML in the browser or nodejs
https://github.com/artburkart/docx2html — apparently, works in the browser
Note: If you are looking for the best way to convert a doc/docx file on the client side, then probably the answer is don't do it. If you really need to do it then do it server-side, i.e. with libreoffice in headless mode, apache-poi (java), pandoc or whatever other library works best for you.
per @dantheta's comment:
As of npm 1.1.65, Github URL can be more concise user/project. npmjs.org/doc/files/package.json.html You can attach the branch like user/project#branch
So
"babel-eslint": "babel/babel-eslint",
Or for tag v1.12.0 on jscs:
"jscs": "jscs-dev/node-jscs#v1.12.0",
Note, if you use npm --save, you'll get the longer git
From https://docs.npmjs.com/cli/v6/configuring-npm/package-json#git-urls-as-dependencies
Git URLs as Dependencies
Git urls are of the form:
git+ssh://[email protected]:npm/cli.git#v1.0.27
git+ssh://[email protected]:npm/cli#semver:^5.0
git+https://[email protected]/npm/cli.git
git://github.com/npm/cli.git#v1.0.27
If
#<commit-ish>
is provided, it will be used to clone exactly that commit. If > the commit-ish has the format#semver:<semver>
,<semver>
can be any valid semver range or exact version, and npm will look for any tags or refs matching that range in the remote repository, much as it would for a registry dependency. If neither#<commit-ish>
or#semver:<semver>
is specified, then master is used.
GitHub URLs
As of version 1.1.65, you can refer to GitHub urls as just "foo": "user/foo-project". Just as with git URLs, a commit-ish suffix can be included. For example:
{ "name": "foo", "version": "0.0.0", "dependencies": { "express": "expressjs/express", "mocha": "mochajs/mocha#4727d357ea", "module": "user/repo#feature\/branch" } }```
You can do this without a module:
characters = list(map(chr, range(97,123)))
Type characters
and it should print ["a","b","c", ... ,"x","y","z"]
. For uppercase use:
characters=list(map(chr,range(65,91)))
Any range (including the use of range steps) can be used for this, because it makes use of Unicode. Therefore, increase the range()
to add more characters to the list.
map()
calls chr()
every iteration of the range()
.
Include 'use strict';
as the first statement in a wrapping function, so it only affects that function. This prevents problems when concatenating scripts that aren't strict.
See Douglas Crockford's latest blog post Strict Mode Is Coming To Town.
Example from that post:
(function () {
'use strict';
// this function is strict...
}());
(function () {
// but this function is sloppy...
}());
Update: In case you don't want to wrap in immediate function (e.g. it is a node module), then you can disable the warning.
For JSLint (per Zhami):
/*jslint node: true */
For JSHint:
/*jshint strict:false */
or (per Laith Shadeed)
/* jshint -W097 */
To disable any arbitrary warning from JSHint, check the map in JSHint source code (details in docs).
Update 2: JSHint supports node:boolean
option. See .jshintrc
at github.
/* jshint node: true */
An addition to the solution by @Rafael Teles. The syntactic sugar Collectors.mapping
does the same in one step:
//...
List<Employee> employees = persons.stream()
.filter(p -> p.getLastName().equals("l1"))
.collect(
Collectors.mapping(
p -> new Employee(p.getName(), p.getLastName(), 1000),
Collectors.toList()));
Detailed example can be found here
In my case, my eclipse java compiler warnings were set too high, and eclipse was not recognizing my class as valid for execution. Updating my compiler settings fixed the problem. You can read more about it here: annotation-nonnull-cannot-be-resolved
In my case the Procfile
I used was breaking everything. Heroku looks for Procfile
and applies its settings when launching the app - clearly the dev settings I used didn't make any sense for the prod server. I had to rename it to Procfile.dev
and everything started working normally.
Instead of directly messing with innerHTML
it might be better to create a fragment and then insert that:
function create(htmlStr) {
var frag = document.createDocumentFragment(),
temp = document.createElement('div');
temp.innerHTML = htmlStr;
while (temp.firstChild) {
frag.appendChild(temp.firstChild);
}
return frag;
}
var fragment = create('<div>Hello!</div><p>...</p>');
// You can use native DOM methods to insert the fragment:
document.body.insertBefore(fragment, document.body.childNodes[0]);
Benefits:
Even though innerHTML
is used within the function, it's all happening outside of the DOM so it's much faster than you'd think...
Also, correct me if I'm wrong, but I believe that submit will wait for a new page to load, whereas click will immediately continue executing code
You can try :
@media print {
.table td,
.table th {
background-color: transparent !important;
-webkit-print-color-adjust: exact !important;
}
}
No, the powers that be at Google chose not to support that.
https://groups.google.com/forum/#!topic/golang-nuts/-5MCaivW0qQ
for any extra column if there is no mapping then map it to null like the following SQL query
Select Col1, Col2, Col3, Col4, Col5 from Table1
Union
Select Col1, Col2, Col3, Null as Col4, Null as Col5 from Table2````
Here is a complete tutorial how to make it quickly if you need to make worgking again a website after PHP upgrade. I used it after upgrading hosting for my customers from 5.4 (OMG!!!) to 7.x PHP version.
This is a workaround and it is better to rewrite all code using PDO or mysqli Class.
First of all, you need to put the connection to a new variable $link
or $con
, or whatever you want.
Example
Change the connection from :
@mysql_connect($host, $username, $password) or die("Error message...");
@mysql_select_db($db);
or
@mysql_connect($host, $username, $password, $db) or die("Error message...");
to:
$con = mysqli_connect($host, $username, $password, $db) or die("Error message...");
With Notepad++ I use "Find in files" (Ctrl + Shift + f) :
in the following order I choose "Replace in Files" :
mysql_query( -> mysqli_query($con,
mysql_error() -> mysqli_error($con)
mysql_close() -> mysqli_close($con)
mysql_insert_id() -> mysqli_insert_id($con)
mysql_real_escape_string( -> mysqli_real_escape_string($con,
mysql_ -> mysqli_
if you get errors it is maybe because your $con is not accessible from your functions.
You need to add a global $con;
in all your functions, for example :
function my_function(...) {
global $con;
...
}
In SQL class, you will put connection to $this->con
instead of $con
. and replace it in each functions call (for example : mysqli_query($con, $query);
)
See this : What Python version can I use with Django?¶ https://docs.djangoproject.com/en/2.0/faq/install/
if you are using python27 you must to set django version :
try: $pip install django==1.9
Mine was a TLS
version incompatible error.
Previously it was TLSv1
I changed it TLSV1.2
this solved my problem.
If your problem is like the following while using Google Chrome:
[XMLHttpRequest cannot load file. Received an invalid response. Origin 'null' is therefore not allowed access.]
Then create a batch file by following these steps:
Open notepad in Desktop.
start "chrome" "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --allow-file-access-from-files exit
This will do what? It will open Chrome.exe with file access. Now, from any location in your computer, browse your html files with Google Chrome. I hope this will solve the XMLHttpRequest problem.
Keep in mind : Just use the shortcut bat file to open Chrome when you require it. Tell me if it solves your problem. I had a similar problem and I solved it in this way. Thanks.
my solution: first step like most other answer:
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
python2.7 get-pip.py --force-reinstall
second, add soft link
sudo ln -s /usr/local/bin/pip /usr/bin/pip
I realize this question is a bit dated and since it shows up on Google search for similar issue I thought I will expand a little bit more on top of @CowWarrior's answer. I was looking for somewhat similar solution, and after scouring through countless SO question/answers and Bootstrap documentations the solution was pretty simple. Again, this would be using inbuilt Bootstrap collapse
class to show/hide divs and Bootstrap's "Collapse Event".
What I realized is that it is easy to do it using a Bootstrap Accordion, but most of the time even though the functionality required is "somewhat" similar to an Accordion, it's different in a way that one would want to show hide <div>
based on, lets say, menu buttons on a navbar
. Below is a simple solution to this. The anchor tags (<a>
) could be navbar items and based on a collapse event the corresponding div will replace the existing div. It looks slightly sloppy in CodeSnippet, but it is pretty close to achieving the functionality-
All that the JavaScript does is makes all the other <div>
hide using
$(".main-container.collapse").not($(this)).collapse('hide');
when the loaded <div>
is displayed by checking the Collapse event shown.bs.collapse
. Here's the Bootstrap documentation on Collapse Event.
Note: main-container
is just a custom class.
Here it goes-
$(".main-container.collapse").on('shown.bs.collapse', function () { _x000D_
//when a collapsed div is shown hide all other collapsible divs that are visible_x000D_
$(".main-container.collapse").not($(this)).collapse('hide');_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>_x000D_
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
_x000D_
<a href="#Foo" class="btn btn-default" data-toggle="collapse">Toggle Foo</a>_x000D_
<a href="#Bar" class="btn btn-default" data-toggle="collapse">Toggle Bar</a>_x000D_
_x000D_
<div id="Bar" class="main-container collapse in">_x000D_
This div (#Bar) is shown by default and can toggle_x000D_
</div>_x000D_
<div id="Foo" class="main-container collapse">_x000D_
This div (#Foo) is hidden by default_x000D_
</div>
_x000D_
See responses to this question. Essentially what you are seeing is a natural consequence of using floating point arithmetic.
You could pick some arbitrary precision (significant digits of your inputs?) and round your result to it, if you feel comfortable doing that.
Use array_values
to reset keys
foreach($input as &$val) {
$val = array_values($val);
}
subprocess: The
subprocess
module allows you to spawn new processes, connect to their input/output/error pipes, and obtain their return codes.
http://docs.python.org/library/subprocess.html
Usage:
import subprocess
process = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE)
process.wait()
print process.returncode
A bit late for an answer but just updated fiddle with some best practice
var myApp = angular.module('myApp',[]);
myApp.factory('UserService', function() {
var userService = {};
userService.name = "HI Atul";
userService.ChangeName = function (value) {
userService.name = value;
};
return userService;
});
function MyCtrl($scope, UserService) {
$scope.name = UserService.name;
$scope.updatedname="";
$scope.changeName=function(data){
$scope.updateServiceName(data);
}
$scope.updateServiceName = function(name){
UserService.ChangeName(name);
$scope.name = UserService.name;
}
}
Replace
f = open(D\\python\\HW\\2_1 - Copy.cp,"r");
by
f = open("D:\\python\\HW\\2_1 - Copy.cp", "r")
What tutorial are you using?
The problem is caused by using the style="display:none"
, you should hide the alert with Javascript or at least when showing it, remove the style attribute.
In a regular expression, you can "capture" parts of the matched string with (brackets)
; in this case, you are capturing the (^|_)
and ([a-z])
parts of the match. These are numbered starting at 1, so you have back-references 1 and 2. Match 0 is the whole matched string.
The /e
modifier takes a replacement string, and substitutes backslash followed by a number (e.g. \1
) with the appropriate back-reference - but because you're inside a string, you need to escape the backslash, so you get '\\1'
. It then (effectively) runs eval
to run the resulting string as though it was PHP code (which is why it's being deprecated, because it's easy to use eval
in an insecure way).
The preg_replace_callback
function instead takes a callback function and passes it an array containing the matched back-references. So where you would have written '\\1'
, you instead access element 1 of that parameter - e.g. if you have an anonymous function of the form function($matches) { ... }
, the first back-reference is $matches[1]
inside that function.
So a /e
argument of
'do_stuff(\\1) . "and" . do_stuff(\\2)'
could become a callback of
function($m) { return do_stuff($m[1]) . "and" . do_stuff($m[2]); }
Or in your case
'strtoupper("\\2")'
could become
function($m) { return strtoupper($m[2]); }
Note that $m
and $matches
are not magic names, they're just the parameter name I gave when declaring my callback functions. Also, you don't have to pass an anonymous function, it could be a function name as a string, or something of the form array($object, $method)
, as with any callback in PHP, e.g.
function stuffy_callback($things) {
return do_stuff($things[1]) . "and" . do_stuff($things[2]);
}
$foo = preg_replace_callback('/([a-z]+) and ([a-z]+)/', 'stuffy_callback', 'fish and chips');
As with any function, you can't access variables outside your callback (from the surrounding scope) by default. When using an anonymous function, you can use the use
keyword to import the variables you need to access, as discussed in the PHP manual. e.g. if the old argument was
'do_stuff(\\1, $foo)'
then the new callback might look like
function($m) use ($foo) { return do_stuff($m[1], $foo); }
preg_replace_callback
is instead of the /e
modifier on the regex, so you need to remove that flag from your "pattern" argument. So a pattern like /blah(.*)blah/mei
would become /blah(.*)blah/mi
./e
modifier used a variant of addslashes()
internally on the arguments, so some replacements used stripslashes()
to remove it; in most cases, you probably want to remove the call to stripslashes
from your new callback.I got the same error using Eclipse trying to execute a Gradle Task. Every time I run a command (i.e. war) the process threw an exception like:
Could not find tools.jar. Please check that C:\Program Files\Java\Jre8" is a valid JDK install.
I tried the solution listed in this post but none of them solved this issue. Here my solution :
Run again, Enjoy!
You could put the text into a div (or other container) with a width of 50%.
Ugh, just spent an hour trying to figure this out. In my case I had a background set, however it was set to a color. This is not enough, you need to have the background of the view set to a drawable.
e.g. This won't have a shadow:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="165dp"
android:background="@color/ight_grey"
android:elevation="20dp"
android:orientation="vertical"
/>
but this will
<LinearLayout
android:layout_width="match_parent"
android:layout_height="165dp"
android:background="@drawable/selector_grey"
android:elevation="20dp"
android:orientation="vertical"
/>
EDIT: Have also discovered that if you use a selector as a background, if you don't have the corner set then the shadow won't show up in the Preview window but it will show up on the device
e.g. This doesn't have a shadow in preview:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle">
<solid android:color="@color/white" />
<stroke
android:width="1dp"
android:color="@color/grey"/>
</shape>
</item>
</selector>
but this does:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle">
<solid android:color="@color/white" />
<corners android:radius="1dp" />
<stroke
android:width="1dp"
android:color="@color/grey"/>
</shape>
</item>
</selector>
I usually use some #define and constants to make the calculation easy:
#define NANO_SECOND_MULTIPLIER 1000000 // 1 millisecond = 1,000,000 Nanoseconds
const long INTERVAL_MS = 500 * NANO_SECOND_MULTIPLIER;
Hence my code would look like this:
timespec sleepValue = {0};
sleepValue.tv_nsec = INTERVAL_MS;
nanosleep(&sleepValue, NULL);
I usually do:
git checkout .
git pull
In the project's root folder.
You could kill all connections before dropping the database using the pg_terminate_backend(int)
function.
You can get all running backends using the system view pg_stat_activity
I'm not entirely sure, but the following would probably kill all sessions:
select pg_terminate_backend(procpid)
from pg_stat_activity
where datname = 'doomed_database'
Of course you may not be connected yourself to that database
You can use the Bean Comparator to sort on any property in your custom class.
The accepted answer (use MockitoJUnitRunner
and @InjectMocks
) is great. But if you want something a little more lightweight (no special JUnit runner), and less "magical" (more transparent) especially for occasional use, you could just set the private fields directly using introspection.
If you use Spring, you already have a utility class for this : org.springframework.test.util.ReflectionTestUtils
The use is quite straightforward :
ReflectionTestUtils.setField(myLauncher, "myService", myService);
The first argument is your target bean, the second is the name of the (usually private) field, and the last is the value to inject.
If you don't use Spring, it is quite trivial to implement such a utility method. Here is the code I used before I found this Spring class :
public static void setPrivateField(Object target, String fieldName, Object value){
try{
Field privateField = target.getClass().getDeclaredField(fieldName);
privateField.setAccessible(true);
privateField.set(target, value);
}catch(Exception e){
throw new RuntimeException(e);
}
}
Cellpadding
is the amount of space between the outer edges of the
table cell and the content of the cell.
Cellspacing
is the amount of space in between the individual table cells.
More Details *Link 1*
I solved this by executing C:\mongodb\bin\mongod.exe --repair
first. Then when I ran MongoDB again by C:\mongodb\bin\mongod.exe
, it successfully started.
All the answers are good. The java8+ have these patterns for parsing and formatting timezone: V
, z
, O
, X
, x
, Z
.
Here's they are, for parsing, according to rules from the documentation :
Symbol Meaning Presentation Examples
------ ------- ------------ -------
V time-zone ID zone-id America/Los_Angeles; Z; -08:30
z time-zone name zone-name Pacific Standard Time; PST
O localized zone-offset offset-O GMT+8; GMT+08:00; UTC-08:00;
X zone-offset 'Z' for zero offset-X Z; -08; -0830; -08:30; -083015; -08:30:15;
x zone-offset offset-x +0000; -08; -0830; -08:30; -083015; -08:30:15;
Z zone-offset offset-Z +0000; -0800; -08:00;
But how about formatting?
Here's a sample for a date (assuming ZonedDateTime
) that show these patters behavior for different formatting patters:
// The helper function:
static void printInPattern(ZonedDateTime dt, String pattern) {
System.out.println(pattern + ": " + dt.format(DateTimeFormatter.ofPattern(pattern)));
}
// The date:
String strDate = "2020-11-03 16:40:44 America/Los_Angeles";
DateTimeFormatter format = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss zzzz");
ZonedDateTime dt = ZonedDateTime.parse(strDate, format);
// 2020-11-03T16:40:44-08:00[America/Los_Angeles]
// Rules:
// printInPattern(dt, "V"); // exception!
printInPattern(dt, "VV"); // America/Los_Angeles
// printInPattern(dt, "VVV"); // exception!
// printInPattern(dt, "VVVV"); // exception!
printInPattern(dt, "z"); // PST
printInPattern(dt, "zz"); // PST
printInPattern(dt, "zzz"); // PST
printInPattern(dt, "zzzz"); // Pacific Standard Time
printInPattern(dt, "O"); // GMT-8
// printInPattern(dt, "OO"); // exception!
// printInPattern(dt, "OO0"); // exception!
printInPattern(dt, "OOOO"); // GMT-08:00
printInPattern(dt, "X"); // -08
printInPattern(dt, "XX"); // -0800
printInPattern(dt, "XXX"); // -08:00
printInPattern(dt, "XXXX"); // -0800
printInPattern(dt, "XXXXX"); // -08:00
printInPattern(dt, "x"); // -08
printInPattern(dt, "xx"); // -0800
printInPattern(dt, "xxx"); // -08:00
printInPattern(dt, "xxxx"); // -0800
printInPattern(dt, "xxxxx"); // -08:00
printInPattern(dt, "Z"); // -0800
printInPattern(dt, "ZZ"); // -0800
printInPattern(dt, "ZZZ"); // -0800
printInPattern(dt, "ZZZZ"); // GMT-08:00
printInPattern(dt, "ZZZZZ"); // -08:00
In the case of positive offset the +
sign character is used everywhere(where there is -
now) and never omitted.
This well works for new java.time
types. If you're about to use these for java.util.Date
or java.util.Calendar
- not all going to work as those types are broken(and so marked as deprecated, please don't use them)
[HttpPost]
public JsonResult ContactAdd(ContactViewModel contactViewModel)
{
if (ModelState.IsValid)
{
var job = new Job { Contact = new Contact() };
Mapper.Map(contactViewModel, job);
Mapper.Map(contactViewModel, job.Contact);
_db.Jobs.Add(job);
_db.SaveChanges();
//you do not even need this line of code,200 is the default for ASP.NET MVC as long as no exceptions were thrown
//Response.StatusCode = (int)HttpStatusCode.OK;
return Json(new { jobId = job.JobId });
}
else
{
Response.StatusCode = (int)HttpStatusCode.BadRequest;
return Json(new { jobId = -1 });
}
}
To change the "..." when the mouse hovers over the calendar icon, You need to add the following in the datepicker options:
showOn: 'button',
buttonText: 'Click to show the calendar',
buttonImageOnly: true,
buttonImage: 'images/cal2.png',
Infact, 2 dimensional array is the list of list of X
, where X
is one of your data structures from typical ones to user-defined ones. As the following snapshot code, I added row by row into an array triangle
. To create each row, I used the method add
to add elements manually or the method asList
to create a list from a band of data.
package algorithms;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class RunDemo {
/**
* @param args
*/
public static void main(String[] args) {
// Get n
List<List<Integer>> triangle = new ArrayList<List<Integer>>();
List<Integer> row1 = new ArrayList<Integer>(1);
row1.add(2);
triangle.add(row1);
List<Integer> row2 = new ArrayList<Integer>(2);
row2.add(3);row2.add(4);
triangle.add(row2);
triangle.add(Arrays.asList(6,5,7));
triangle.add(Arrays.asList(4,1,8,3));
System.out.println("Size = "+ triangle.size());
for (int i=0; i<triangle.size();i++)
System.out.println(triangle.get(i));
}
}
Running the sample, it generates the output:
Size = 4
[2]
[3, 4]
[6, 5, 7]
[4, 1, 8, 3]
This is a clarification because I have seen things done in code which are honestly confusing - I think the following example might assist others.
As others have said before - Bitmap inherits from the Abstract Image class
Abstract effectively means you cannot create a New() instance of it.
Image imgBad1 = new Image(); // Bad - won't compile
Image imgBad2 = new Image(200,200); // Bad - won't compile
But you can do the following:
Image imgGood; // Not instantiated object!
// Now you can do this
imgGood = new Bitmap(200, 200);
You can now use imgGood as you would the same bitmap object if you had done the following:
Bitmap bmpGood = new Bitmap(200,200);
The nice thing here is you can draw the imgGood object using a Graphics object
Graphics gr = default(Graphics);
gr = Graphics.FromImage(new Bitmap(1000, 1000));
Rectangle rect = new Rectangle(50, 50, imgGood.Width, imgGood.Height); // where to draw
gr.DrawImage(imgGood, rect);
Here imgGood can be any Image object - Bitmap, Metafile, or anything else that inherits from Image!
If you have a dinamically added link to some container or the body:
var newLink= $("<a></a>", {
"id": "approve-ctrl",
"href": "#approve",
"class": "status-ctrl",
"data-attributes": "DATA"
}).html("Its ok").appendTo(document.body);
you can take its raw javascript element and add an event listener to it, like the click:
newLink.get(0).addEventListener("click", doActionFunction);
No matter how many times you add this new link instance you can use it as if you where using a jquery click
function.
function doActionFunction(e) {
e.preventDefault();
e.stopPropagation();
alert($(this).html());
}
So you will receive a message saying
Its ok
It has better performance than other alternatives.
Extra: You could gain better performance avoiding jquery and using plain javascript. If you are using IE up to version 8 you should use this polyfill to use the method addEventListener
if (typeof Element.prototype.addEventListener === 'undefined') {
Element.prototype.addEventListener = function (e, callback) {
e = 'on' + e;
return this.attachEvent(e, callback);
};
}
Instant.ofEpochMilli( myMillisSinceEpoch ) // Convert count-of-milliseconds-since-epoch into a date-time in UTC (`Instant`).
.atZone( ZoneId.of( "Africa/Tunis" ) ) // Adjust into the wall-clock time used by the people of a particular region (a time zone). Produces a `ZonedDateTime` object.
.toLocalDate() // Extract the date-only value (a `LocalDate` object) from the `ZonedDateTime` object, without time-of-day and without time zone.
.format( // Generate a string to textually represent the date value.
DateTimeFormatter.ofPattern( "dd/MM/uuuu" ) // Specify a formatting pattern. Tip: Consider using `DateTimeFormatter.ofLocalized…` instead to soft-code the formatting pattern.
) // Returns a `String` object.
The modern approach uses the java.time classes that supplant the troublesome old legacy date-time classes used by all the other Answers.
Assuming you have a long
number of milliseconds since the epoch reference of first moment of 1970 in UTC, 1970-01-01T00:00:00Z…
Instant instant = Instant.ofEpochMilli( myMillisSinceEpoch ) ;
To get a date requires a time zone. For any given moment, the date varies around the globe by zone.
ZoneId z = ZoneId.of( "Pacific/Auckland" ) ;
ZonedDateTime zdt = instant.atZone( z ) ; // Same moment, different wall-clock time.
Extract a date-only value.
LocalDate ld = zdt.toLocalDate() ;
Generate a String representing that value using standard ISO 8601 format.
String output = ld.toString() ;
Generate a String in custom format.
DateTimeFormatter f = DateTimeFormatter.ofPattern( "dd/MM/uuuu" ) ;
String output = ld.format( f ) ;
Tip: Consider letting java.time automatically localize for you rather than hard-code a formatting pattern. Use the DateTimeFormatter.ofLocalized…
methods.
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
.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.*
classes. Hibernate 5 & JPA 2.2 support java.time.
Where to obtain the java.time classes?
You could create a helper function:
def re_match_group(pattern, str, out_groups):
del out_groups[:]
result = re.match(pattern, str)
if result:
out_groups[:len(result.groups())] = result.groups()
return result
And then use it like this:
groups = []
if re_match_group("I love (\w+)", statement, groups):
print "He loves", groups[0]
elif re_match_group("Ich liebe (\w+)", statement, groups):
print "Er liebt", groups[0]
elif re_match_group("Je t'aime (\w+)", statement, groups):
print "Il aime", groups[0]
It's a little clunky, but it gets the job done.
You can also use REPLACE()
:
UPDATE Table
SET Column = REPLACE(Column, 'Test123', 'Test')
Successfully Script for your question ,Full Test
<script src="~/Scripts/jquery-1.10.2.min.js"></script>
<p title="text" id="FileNameShow" ></p>
<input type="file"
id="myfile"
onchange="javascript:showSrc();"
size="30">
<script type="text/javascript">
function replaceAll(txt, replace, with_this) {
return txt.replace(new RegExp(replace, 'g'), with_this);
}
function showSrc() {
document.getElementById("myframe").href = document.getElementById("myfile").value;
var theexa = document.getElementById("myframe").href.replace("file:///", "");
var path = document.getElementById("myframe").href.replace("file:///", "");
var correctPath = replaceAll(path, "%20", " ");
alert(correctPath);
var filename = correctPath.replace(/^.*[\\\/]/, '')
$("#FileNameShow").text(filename)
}
Just change
system('unzip $master.zip');
To this one
system('unzip ' . $master . '.zip');
or this one
system("unzip {$master}.zip");
Sometimes button may be inside of another view of UITableViewCell. In that case superview.superview may not give the cell object and hence the indexPath will be nil.
In that case we should keep finding the superview until we get the cell object.
Function to get cell object by superview
func getCellForView(view:UIView) -> UITableViewCell?
{
var superView = view.superview
while superView != nil
{
if superView is UITableViewCell
{
return superView as? UITableViewCell
}
else
{
superView = superView?.superview
}
}
return nil
}
Now we can get indexPath on button tap as below
@IBAction func tapButton(_ sender: UIButton)
{
let cell = getCellForView(view: sender)
let indexPath = myTabelView.indexPath(for: cell)
}
I would just use numpy's randn
:
In [11]: df = pd.DataFrame(np.random.randn(100, 2))
In [12]: msk = np.random.rand(len(df)) < 0.8
In [13]: train = df[msk]
In [14]: test = df[~msk]
And just to see this has worked:
In [15]: len(test)
Out[15]: 21
In [16]: len(train)
Out[16]: 79
do you want to try the below code I found on the internet somewhere many moons ago and used.
It uses the Export function of the Chart object along with the CopyPicture method of the Range object.
References:
MSDN - CopyPicture method as it applies to the Range object to copy the range as a picture
dim sSheetName as string
dim oRangeToCopy as range
Dim oCht As Chart
sSheetName ="Sheet1" ' worksheet to work on
set oRangeToCopy =Range("B2:H8") ' range to be copied
Worksheets(sSheetName).Range(oRangeToCopy).CopyPicture xlScreen, xlBitmap
set oCht =charts.add
with oCht
.paste
.Export FileName:="C:\SavedRange.jpg", Filtername:="JPG"
end with
for innerdiv which do not specify it's height value,there is no pure css solution to make it vertically centered.a javascript solution could be get the innerdiv's offsetHeight,then calculate the style.marginTop.
Unutbu answer is correct. But because our mean can be more or less than zero I would still like to change this :
x = np.linspace(-3 * sigma, 3 * sigma, 100)
to this :
x = np.linspace(-3 * sigma + mean, 3 * sigma + mean, 100)
The official answer from Facebook (http://developers.facebook.com/bugs/282710765082535):
Mikhail,
The facebook android sdk no longer supports android 1.5 and 1.6. Please upgrade to the next api version.
Good luck with your implementation.
Another answer to the OP's exact question is to set the consumes
content type to "text/plain"
and then declare a @RequestBody String
input parameter. This will pass the text of the POST data in as the declared String
variable (postPayload
in the following example).
Of course, this presumes your POST payload is text data (as the OP stated was the case).
Example:
@RequestMapping(value = "/your/url/here", method = RequestMethod.POST, consumes = "text/plain")
public ModelAndView someMethod(@RequestBody String postPayload) {
// ...
}
What Every Computer Scientist Should Know About Floating-Point Arithmetic
Floating-point numbers cannot represent all the numbers. In particular, 2.51 cannot be represented by a floating-point number, and is represented by a number very close to it:
>>> print "%.16f" % 2.51
2.5099999999999998
>>> 2.51*100
250.99999999999997
>>> 4.02*100
401.99999999999994
If you use int, which truncates the numbers, you get:
250
401
Have a look at the Decimal type.
You add to the back state from the FragmentTransaction
and remove from the backstack using FragmentManager
pop methods:
FragmentManager manager = getActivity().getSupportFragmentManager();
FragmentTransaction trans = manager.beginTransaction();
trans.remove(myFrag);
trans.commit();
manager.popBackStack();
Using ubuntu 10.4, this is how the mutt solution is written
echo | mutt -a myfile.zip -- [email protected]
Search for a null value by using \00
For example:
ldapsearch -D cn=admin -w pass -s sub -b ou=users,dc=acme 'manager=\00' uid manager
Make sure if you use the null value on the command line to use quotes around it to prevent the OS shell from sending a null character to LDAP. For example, this won't work:
ldapsearch -D cn=admin -w pass -s sub -b ou=users,dc=acme manager=\00 uid manager
There are various sites that reference this, along with other special characters. Example:
In my case it was stupid missing of @OneToOne annotation, i set @MapsId without it
for i in range(11):
string = "string{0}".format(i)
What you did (range[1,10]
) is
a[3]
) or a slice (a[3:5]
) of a list, [1,10]
is invalid, and range(1,10)
is [1, 2, 3, 4, 5, 6, 7, 8, 9]
, and you seem to want [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
And string = "string" + i
is a TypeError since you can't add an integer to a string (unlike JavaScript).
Look at the documentation for Python's new string formatting method, it is very powerful.
driver.save_screenshot("path to save \\screen.jpeg")
Passphrases can be added to an existing key or changed without regenerating the key pair:
Note This will work if keys doesn't had a passphrase, otherwise you'll get this: Enter old passphrase:
then Bad passphrase
$ ssh-keygen -p
Enter file in which the key is (/Users/tekkub/.ssh/id_rsa):
Key has comment '/Users/tekkub/.ssh/id_rsa'
Enter new passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved with the new passphrase.
If your key had passphrase
then, There's no way to recover the passphrase for a pair of SSH keys. In that case you have to create a new pair of SSH keys.
Maybe it's not pythonic way, but you can do this
import ctypes
def incr(a):
a += 1
x = ctypes.c_int(1) # create c-var
incr(ctypes.ctypes.byref(x)) # passing by ref
The statement about CMake being a "build generator" is a common misconception.
It's not technically wrong; it just describes HOW it works, but not WHAT it does.
In the context of the question, they do the same thing: take a bunch of C/C++ files and turn them into a binary.
So, what is the real difference?
CMake is much more high-level. It's tailored to compile C++, for which you write much less build code, but can be also used for general purpose build. make
has some built-in C/C++ rules as well, but they are useless at best.
CMake
does a two-step build: it generates a low-level build script in ninja
or make
or many other generators, and then you run it. All the shell script pieces that are normally piled into Makefile
are only executed at the generation stage. Thus, CMake
build can be orders of magnitude faster.
The grammar of CMake
is much easier to support for external tools than make's.
Once make
builds an artifact, it forgets how it was built. What sources it was built from, what compiler flags? CMake
tracks it, make
leaves it up to you. If one of library sources was removed since the previous version of Makefile
, make
won't rebuild it.
Modern CMake
(starting with version 3.something) works in terms of dependencies between "targets". A target is still a single output file, but it can have transitive ("public"/"interface" in CMake terms) dependencies.
These transitive dependencies can be exposed to or hidden from the dependent packages. CMake
will manage directories for you. With make
, you're stuck on a file-by-file and manage-directories-by-hand level.
You could code up something in make
using intermediate files to cover the last two gaps, but you're on your own. make
does contain a Turing complete language (even two, sometimes three counting Guile); the first two are horrible and the Guile is practically never used.
To be honest, this is what CMake
and make
have in common -- their languages are pretty horrible. Here's what comes to mind:
CMake
has three data types: string, list, and a target with properties. make
has one: string;set_property(TARGET helloworld APPEND PROPERTY INCLUDE_DIRECTORIES "${CMAKE_CURRENT_SOURCE_DIR}")
;It's the same as the Objective-C API, but uses Swift's syntax.
Swift 4.2 & Swift 5:
NotificationCenter.default.addObserver(
self,
selector: #selector(self.batteryLevelChanged),
name: UIDevice.batteryLevelDidChangeNotification,
object: nil)
If your observer does not inherit from an Objective-C object, you must prefix your method with @objc
in order to use it as a selector.
@objc private func batteryLevelChanged(notification: NSNotification){
//do stuff using the userInfo property of the notification object
}
See NSNotificationCenter Class Reference, Interacting with Objective-C APIs
Why not use the <textarea>
tag?
?<textarea id="txtArea" rows="10" cols="70"></textarea>
This way is similar to the above solution but implemented differently
.social_icon -> some class with CSS
<div class="social_icon" id="SOME_ID" data-url="SOME_URL"></div>
$('.social_icon').click(function(){
var url = $(this).attr('data-url');
var win = window.open(url, '_blank'); ///similar to above solution
win.focus();
});
You can copy the contents of the export_graphviz file and you can paste the same in the webgraphviz.com site.
You can check out the article on How to visualize the decision tree in Python with graphviz for more information.
You want $.param()
: http://api.jquery.com/jQuery.param/
Specifically, you want this:
var data = { one: 'first', two: 'second' };
var result = $.param(data);
When given something like this:
{a: 1, b : 23, c : "te!@#st"}
$.param
will return this:
a=1&b=23&c=te!%40%23st
In JUnit 3, your field initializers will be run once per test method before any tests are run. As long as your field values are small in memory, take little set up time, and do not affect global state, using field initializers is technically fine. However, if those do not hold, you may end up consuming a lot of memory or time setting up your fields before the first test is run, and possibly even running out of memory. For this reason, many developers always set field values in the setUp() method, where it's always safe, even when it's not strictly necessary.
Note that in JUnit 4, test object initialization happens right before test running, and so using field initializers is safer, and recommended style.
const char S[] = "ABCD";
This should work. i use this notation only and it works perfectly fine for me. I don't know how you are using.
when i run xampp control panel normal:
I had been run
I can’t start apache So, I will run it with administrator:
I can run apache
Just use inline if operation with tuple function:
query = "Select * from hr_employee WHERE id in " % tuple(employee_ids) if len(employee_ids) != 1 else "("+ str(employee_ids[0]) + ")"
ng-if="select.name.indexOf('?') !== -1"
@Adam Just add a function using onClick="getId()"
function getId(){console.log(this.event.target.id)}
Fancy indexing requires you to provide all indices for each dimension. You are providing 3 indices for the first one, and only 2 for the second one, hence the error. You want to do something like this:
>>> a[[[0, 0], [1, 1], [3, 3]], [[0,2], [0,2], [0, 2]]]
array([[ 0, 2],
[ 4, 6],
[12, 14]])
That is of course a pain to write, so you can let broadcasting help you:
>>> a[[[0], [1], [3]], [0, 2]]
array([[ 0, 2],
[ 4, 6],
[12, 14]])
This is much simpler to do if you index with arrays, not lists:
>>> row_idx = np.array([0, 1, 3])
>>> col_idx = np.array([0, 2])
>>> a[row_idx[:, None], col_idx]
array([[ 0, 2],
[ 4, 6],
[12, 14]])
If you are storing the type in your text
(as you should be in this scenario), you can use the JsonSerializerSettings
.
See: how to deserialize JSON into IEnumerable<BaseType> with Newtonsoft JSON.NET
Be careful, though. Using anything other than TypeNameHandling = TypeNameHandling.None
could open yourself up to a security vulnerability.
It is better to use error codes, you don't have to parse.
try
{
}
catch (SqlException exception)
{
if (exception.Number == 208)
{
}
else
throw;
}
How to find out that 208 should be used:
select message_id
from sys.messages
where text like 'Invalid object name%'
I had this problem too after I installed Numpy. I solved it by just closing the Python interpreter and reopening. It may be something else to try if anyone else has this problem, perhaps it will save a few minutes!
Make sure to learn from the padding oracle asp.net vulnerability that just happened (you applied the patch, right? ...) and use protected sections to encrypt the machine key and any other sensitive configuration.
An alternative option is to set it in the machine level web.config, so its not even in the web site folder.
To generate it do it just like the linked article in David's answer.
You may want to add this to your preamble, and adjust the values as necessary:
%------------begin Float Adjustment
%two column float page must be 90% full
\renewcommand\dblfloatpagefraction{.90}
%two column top float can cover up to 80% of page
\renewcommand\dbltopfraction{.80}
%float page must be 90% full
\renewcommand\floatpagefraction{.90}
%top float can cover up to 80% of page
\renewcommand\topfraction{.80}
%bottom float can cover up to 80% of page
\renewcommand\bottomfraction{.80}
%at least 10% of a normal page must contain text
\renewcommand\textfraction{.1}
%separation between floats and text
\setlength\dbltextfloatsep{9pt plus 5pt minus 3pt }
%separation between two column floats and text
\setlength\textfloatsep{4pt plus 2pt minus 1.5pt}
Particularly, the \floatpagefraction may be of interest.
You should now use the .on()
function to bind events.
For the impatient:
UPDATE target AS t
INNER JOIN (
SELECT s.id, COUNT(*) AS count
FROM source_grouped AS s
-- WHERE s.custom_condition IS (true)
GROUP BY s.id
) AS aggregate ON aggregate.id = t.id
SET t.count = aggregate.count
That's @mellamokb's answer, as above, reduced to the max.
JVM, JRE and JDK are platform dependent because configuration of each OS differs. But, Java is platform independent.
Java Virtual Machine (JVM) is a run-time system that executes Java bytecode.
JRE is the environment (standard libraries and JVM) required to run Java applications.
The JDK includes the JRE plus command-line development tools such as compilers and debuggers that are necessary or useful for developing applets and applications.
One other really good reason to use a bitmask vs individual bools is as a web developer, when integrating one website to another, we frequently need to send parameters or flags in the querystring. As long as all of your flags are binary, it makes it much simpler to use a single value as a bitmask than send multiple values as bools. I know there are otherways to send data (GET, POST, etc.), but a simple parameter on the querystring is most of the time sufficient for nonsensitive items. Try to send 128 bool values on a querystring to communicate with an external site. This also gives the added ability of not pushing the limit on url querystrings in browsers
I ran across this error recently using a javascript library which changes the parameters of a function based on conditions.
You can test an object to see if it has the function. I would only do this in scenarios where you don't control what is getting passed to you.
if( param.indexOf != undefined ) {
// we have a string or other object that
// happens to have a function named indexOf
}
You can test this in your browser console:
> (3).indexOf == undefined;
true
> "".indexOf == undefined;
false
Happy coding!
If you get an error on Internet Explorer, Change the security settings to allow ActiveX
var CallBackFunction = function(content) {
alert(content);
}
ReadFileAllBrowsers(document.getElementById("file_upload"), CallBackFunction);
//Tested in Mozilla Firefox browser, Chrome
function ReadFileAllBrowsers(FileElement, CallBackFunction) {
try {
var file = FileElement.files[0];
var contents_ = "";
if (file) {
var reader = new FileReader();
reader.readAsText(file, "UTF-8");
reader.onload = function(evt) {
CallBackFunction(evt.target.result);
}
reader.onerror = function(evt) {
alert("Error reading file");
}
}
} catch (Exception) {
var fall_back = ieReadFile(FileElement.value);
if (fall_back != false) {
CallBackFunction(fall_back);
}
}
}
///Reading files with Internet Explorer
function ieReadFile(filename) {
try {
var fso = new ActiveXObject("Scripting.FileSystemObject");
var fh = fso.OpenTextFile(filename, 1);
var contents = fh.ReadAll();
fh.Close();
return contents;
} catch (Exception) {
alert(Exception);
return false;
}
}
[0]=> string(141)
means $message is an array so you should do strlen($message[0]) < 141
...
you can also do this
margin-top:-30px;
min-height:40px;
this "help" to stop the div yanking everything up a bit.
Please use SqlBulkCopyColumnMapping.
Example:
private void SaveFileToDatabase(string filePath)
{
string strConnection = System.Configuration.ConfigurationManager.ConnectionStrings["MHMRA_TexMedEvsConnectionString"].ConnectionString.ToString();
String excelConnString = String.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=\"Excel 12.0\"", filePath);
//Create Connection to Excel work book
using (OleDbConnection excelConnection = new OleDbConnection(excelConnString))
{
//Create OleDbCommand to fetch data from Excel
using (OleDbCommand cmd = new OleDbCommand("Select * from [Crosswalk$]", excelConnection))
{
excelConnection.Open();
using (OleDbDataReader dReader = cmd.ExecuteReader())
{
using (SqlBulkCopy sqlBulk = new SqlBulkCopy(strConnection))
{
//Give your Destination table name
sqlBulk.DestinationTableName = "PaySrcCrosswalk";
// this is a simpler alternative to explicit column mappings, if the column names are the same on both sides and data types match
foreach(DataColumn column in dt.Columns) {
s.ColumnMappings.Add(new SqlBulkCopyColumnMapping(column.ColumnName, column.ColumnName));
}
sqlBulk.WriteToServer(dReader);
}
}
}
}
}
Technology used: Windows 7, UFT 32 bit, Data Source ODBC pointing out to 32 bit C:\Windows\System32\odbcad32.exe
, Oracle client with both versions installed 32 bit and 64 bit.
What worked for me:
1.Start -> search for Edit the system environment variables
2.System Variables -> Edit Path
3.Place the path for Oracle client 32 bit
in front of the path for Oracle Client 64 bit
.
Ex:
C:\APP\ORACLE\product\11.2.0\client_32\bin;C:\APP\ORACLE\product\11.2.0\client_64\bin
No, an alt
attribute (it would be an attribute, not a tag) is not allowed for an a
element in any HTML specification or draft. And it does not seem to be recognized by any browser either as having any significance.
It’s a bit mystery why people try to use it, then, but the probable explanation is that they are doing so in analog with alt
attribute for img
elements, expecting to see a “tooltip” on mouseover. There are two things wrong with this. First, each element has attributes of its own, defined in the specs for each element. Second, the “tooltip” rendering of alt
attributes in some ancient browsers is/was a quirk or even a bug, rather than something to be expected; the alt
attribute is supposed to be presented to the user if and only if the image itself is not presented, for whatever reason.
To create a “tooltip”, use the title
attribute instead or, much better, Google for "CSS tooltips" and use CSS-based tooltips of your preference (they can be characterized as hidden “layers” that become visible on mouseover).
Add the active: false
option (documentation)..
$("#accordion").accordion({ header: "h3", collapsible: true, active: false });
var part = location.hostname.split('.');
var subdomains = part.shift();
var upperleveldomains = part.join('.');
second-level-domain, you might use
var sleveldomain = parts.slice(-2).join('.');
I had problems installing it Bootstrap as well, so I did:
Install popper.js: npm install popper.js@^1.12.3 --save
Install jQuery: npm install [email protected] --save
Then I had a high severity vulnerability message when installing [email protected] and got this message:
run
npm audit fix
to fix them, ornpm audit
for details
So I did npm audit fix
, and after another npm audit fix --force
it successfully installed!
Please note that on msys2 I've found these commands to be helpful:
$ pacman -S python3-pip
$ pip3 install --upgrade pip
$ pip3 install --user package_name
In the VBA Editor's Tools menu, click References... scroll down to "Microsoft Shell Controls And Automation" and choose it.
Sub FolderSelection()
Dim MyPath As String
MyPath = SelectFolder("Select Folder", "")
If Len(MyPath) Then
MsgBox MyPath
Else
MsgBox "Cancel was pressed"
End If
End Sub
'Both arguements are optional. The first is the dialog caption and
'the second is is to specify the top-most visible folder in the
'hierarchy. The default is "My Computer."
Function SelectFolder(Optional Title As String, Optional TopFolder _
As String) As String
Dim objShell As New Shell32.Shell
Dim objFolder As Shell32.Folder
'If you use 16384 instead of 1 on the next line,
'files are also displayed
Set objFolder = objShell.BrowseForFolder _
(0, Title, 1, TopFolder)
If Not objFolder Is Nothing Then
SelectFolder = objFolder.Items.Item.Path
End If
End Function
dont install git on a server or copy the .git folder there. to update a server from a git clone you can use following command:
git ls-files -z | rsync --files-from - --copy-links -av0 . [email protected]:/var/www/project
you might have to delete files which got removed from the project.
this copies all the checked in files. rsync uses ssh which is installed on a server anyways.
the less software you have installed on a server the more secure he is and the easier it is to manage it's configuration and document it. there is also no need to keep a complete git clone on the server. it only makes it more complex to secure everything properly.
Yes, that is possible. At its lowest level Bluetooth allows you to connect up to 7 devices to one master device. I have done this and it has worked well for me, but only on other platforms (linux) where I had lots of manual control - I've never tried that on Android and there are some possible complications so you will need to do some testing to be certain.
One of the issues is that you need the tablet to the master and Android doesn't give you any explicit control of this. It is likely that this won't be a problem because * the tablet will automatically become the master when you try to connect a second device to it, or * you will be able to control the master/slave roles by how you setup your socket connection
I will caution though that most apps using Bluetooth on mobile are not attempting many simultaneous connections and Bluetooth can be a bit fragile, e.g. what if two devices already have a Bluetooth connection for some other app - how might that affect the roles?
Split your date into year, month, and day components then use Date:
var d = new Date(year, month, day);
d.setMonth(d.getMonth() + 8);
Date will take care of fixing the year.
array_map seems good for this too
$codes = array('tn','us','fr');
$names = array('Tunisia','United States','France');
array_map(function ($code, $name) {
echo '<option value="' . $code . '">' . $name . '</option>';
}, $codes, $names);
Other benefits are:
If one array is shorter than the other, the callback receive null
values to fill in the gap.
You can use more than 2 arrays to iterate through.
Add to app.module.ts
import {MatIconModule} from '@angular/material/icon';
& link in your global index.html.
I have come across this error when the app resides on a network share, and the device (laptop, tablet, ...) becomes disconnected from the network while the app is in use. In my case, it was due to a Surface tablet going out of wireless range. No problems after installing a better WAP.
See the javadoc. It's an inclusive index for the first argument and exclusive for the second.
You could do something like this:
int thread_counter = 0;
pthread_mutex_t thread_counter_lock = PTHREAD_MUTEX_INITIALIZER;
int new_thread_id() {
int rv;
pthread_mutex_lock(&thread_counter_lock);
rv = ++thread_counter;
pthread_mutex_unlock(&thread_counter_lock);
return rv;
}
static void *threadproc(void *data) {
int thread_id = new_thread_id();
printf("Thread %d reporting for duty!\n", thread_id);
return NULL;
}
If you can rely on having GCC (clang also works in this case), you can also do this:
int thread_counter = 0;
static void *threadproc(void *data) {
int thread_id = __sync_add_and_fetch(&thread_counter, 1);
printf("Thread %d reporting for duty!\n", thread_id);
return NULL;
}
If your platform supports this, a similar option:
int thread_counter = 0;
int __thread thread_id = 0;
static void *threadproc(void *data) {
thread_id = __sync_add_and_fetch(&thread_counter, 1);
printf("Thread %d reporting for duty!\n", thread_id);
return NULL;
}
This has the advantage that you don't have to pass around thread_id in function calls, but it doesn't work e.g. on Mac OS.
In my case I had to do this:
for index, user in enumerate(users):
table_body.append([])
table_body[index].append(user.user.id)
table_body[index].append(user.user.username)
Output:
[[1, 'john'], [2, 'bill']]
You do not need to use ORDER BY
in inner query after WHERE
clause because you have already used it in ROW_NUMBER() OVER (ORDER BY VRDATE DESC)
.
SELECT
*
FROM (
SELECT
Stockmain.VRNOA,
item.description as item_description,
party.name as party_name,
stockmain.vrdate,
stockdetail.qty,
stockdetail.rate,
stockdetail.amount,
ROW_NUMBER() OVER (ORDER BY VRDATE DESC) AS RowNum --< ORDER BY
FROM StockMain
INNER JOIN StockDetail
ON StockMain.stid = StockDetail.stid
INNER JOIN party
ON party.party_id = stockmain.party_id
INNER JOIN item
ON item.item_id = stockdetail.item_id
WHERE stockmain.etype='purchase'
) AS MyDerivedTable
WHERE
MyDerivedTable.RowNum BETWEEN 1 and 5
On a current netcat (v0.7.1) you have a -c switch:
-c, --close close connection on EOF from stdin
Hence,
echo "hi" | nc -cu localhost 8000
should do the trick.
The man page makes it pretty clear. If you want to pass two arguments (-rpath
and .
) to the linker you can write
-Wl,-rpath,.
or alternatively
-Wl,-rpath -Wl,.
The arguments -Wl,-rpath .
you suggested do NOT make sense to my mind. How is gcc supposed to know that your second argument (.
) is supposed to be passed to the linker instead of being interpreted normally? The only way it would be able to know that is if it had insider knowledge of all possible linker arguments so it knew that -rpath
required an argument after it.
This is the function that you need: Then just pass the x in a rename(X) and it will rename all values that appear and if it isn't in there it won't error
rename <-function(x){
oldNames = c("a","b","c")
newNames = c("d","e","f")
existing <- match(oldNames,names(x))
names(x)[na.omit(existing)] <- newNames[which(!is.na(existing))]
return(x)
}
You can also use: ctrl+alt+insert
For a structure definition that is to be used across more than one source file, you should definitely put it in a header file. Then include that header file in any source file that needs the structure.
The extern
declaration is not used for structure definitions, but is instead used for variable declarations (that is, some data value with a structure type that you have defined). If you want to use the same variable across more than one source file, declare it as extern
in a header file like:
extern struct a myAValue;
Then, in one source file, define the actual variable:
struct a myAValue;
If you forget to do this or accidentally define it in two source files, the linker will let you know about this.
Use extern keyword in another .c file.
UPDATE: As TimK pointed out, this isn't needed with jquery 1.5.2 any more. But if you want to add custom headers or allow the use of credentials (username, password, or cookies, etc), read on.
I think I found the answer! (4 hours and a lot of cursing later)
//This does not work!!
Access-Control-Allow-Headers: *
You need to manually specify all the headers you will accept (at least that was the case for me in FF 4.0 & Chrome 10.0.648.204).
jQuery's $.ajax method sends the "x-requested-with" header for all cross domain requests (i think its only cross domain).
So the missing header needed to respond to the OPTIONS request is:
//no longer needed as of jquery 1.5.2
Access-Control-Allow-Headers: x-requested-with
If you are passing any non "simple" headers, you will need to include them in your list (i send one more):
//only need part of this for my custom header
Access-Control-Allow-Headers: x-requested-with, x-requested-by
So to put it all together, here is my PHP:
// * wont work in FF w/ Allow-Credentials
//if you dont need Allow-Credentials, * seems to work
header('Access-Control-Allow-Origin: http://www.example.com');
//if you need cookies or login etc
header('Access-Control-Allow-Credentials: true');
if ($this->getRequestMethod() == 'OPTIONS')
{
header('Access-Control-Allow-Methods: GET, POST, PUT, DELETE, OPTIONS');
header('Access-Control-Max-Age: 604800');
//if you need special headers
header('Access-Control-Allow-Headers: x-requested-with');
exit(0);
}
Consider using django-bulk-update
found here on GitHub.
Install: pip install django-bulk-update
Implement: (code taken directly from projects ReadMe file)
from bulk_update.helper import bulk_update
random_names = ['Walter', 'The Dude', 'Donny', 'Jesus']
people = Person.objects.all()
for person in people:
r = random.randrange(4)
person.name = random_names[r]
bulk_update(people) # updates all columns using the default db
Update: As Marc points out in the comments this is not suitable for updating thousands of rows at once. Though it is suitable for smaller batches 10's to 100's. The size of the batch that is right for you depends on your CPU and query complexity. This tool is more like a wheel barrow than a dump truck.
No, there is no inline function in java. Yes, you can use a public static method anywhere in the code when placed in a public class. The java compiler may do inline expansion on a static or final method, but that is not guaranteed.
Typically such code optimizations are done by the compiler in combination with the JVM/JIT/HotSpot for code segments used very often. Also other optimization concepts like register declaration of parameters are not known in java.
Optimizations cannot be forced by declaration in java, but done by compiler and JIT. In many other languages these declarations are often only compiler hints (you can declare more register parameters than the processor has, the rest is ignored).
Declaring java methods static, final or private are also hints for the compiler. You should use it, but no garantees. Java performance is dynamic, not static. First call to a system is always slow because of class loading. Next calls are faster, but depending on memory and runtime the most common calls are optimized withinthe running system, so a server may become faster during runtime!
Try:
$("#"+styleTarget).css({ 'font-size': $(this).val() });
By putting the value in quotes, it becomes a string, and "+$(this).val()+"px
is definitely not close to a font value. There are a couple of ways of setting the style properties of an element:
Using a map:
$("#elem").css({
fontSize: 20
});
Using key and value parameters:
All of these are valid.
$("#elem").css("fontSize", 20);
$("#elem").css("fontSize", "20px");
$("#elem").css("font-size", "20");
$("#elem").css("font-size", "20px");
You can replace "fontSize"
with "font-size"
but it will have to be quoted then.
You need to add border-style like this:
<table style="border:1px solid black">
or like this:
<table style="border-width:1px;border-color:black;border-style:solid;">
Vue
allows for you to specify a default prop
value and type
directly, by making props an object (see: https://vuejs.org/guide/components.html#Prop-Validation):
props: {
year: {
default: 2016,
type: Number
}
}
If the wrong type is passed then it throws an error and logs it in the console, here's the fiddle:
Here is the little hack to overcome all the struggles you have for video autoplay in a website:
Note: Some browsers don't let videos to autoplay unless the user interacts with the device.
So scripts to check whether video is playing is:
Object.defineProperty(HTMLMediaElement.prototype, 'playing', {
get: function () {
return !!(this.currentTime > 0 && !this.paused && !this.ended && this.readyState > 2);
}});
And then you can simply autoplay the video by attaching event listeners to the body:
$('body').on('click touchstart', function () {
const videoElement = document.getElementById('home_video');
if (videoElement.playing) {
// video is already playing so do nothing
}
else {
// video is not playing
// so play video now
videoElement.play();
}
});
Note: autoplay
attribute is very basic which needs to be added to the video tag already other than these scripts.
You can see the working example with code here at this link:
How to autoplay video when the device is in low power mode / data saving mode / safari browser issue
We used the following mod_rewrite rule:
RewriteEngine on
RewriteCond %{REQUEST_URI} !^/test/
RewriteCond %{REQUEST_URI} !^/my-folder/
RewriteRule (.*) http://www.newdomain.com/$1 [R=301,L]
This redirects (permanently with a 301 redirect) all traffic to the site to http://www.newdomain.com, except requests to resources in the /test and /my-folder directories. We transfer the user to the exact resource they requested by using the (.*) capture group and then including $1 in the new URL. Mind the spaces.
This is what a constant expression in Java looks like:
package com.mycompany.mypackage;
public class MyLinks {
// constant expression
public static final String GUESTBOOK_URL = "/guestbook";
}
You can use it with annotations as following:
import com.mycompany.mypackage.MyLinks;
@WebServlet(urlPatterns = {MyLinks.GUESTBOOK_URL})
public class GuestbookServlet extends HttpServlet {
// ...
}
Or use directly the InputStream
of the resource using the absolute CLASSPATH path (starting with the /
slash character):
getClass().getResourceAsStream("/com/path/to/file.txt");
Or relative CLASSPATH path (when the class you are writing is in the same Java package as the resource file itself, i.e. com.path.to
):
getClass().getResourceAsStream("file.txt");
you need to install "Android Emulator"
Go to
SDK Manger -> Appearance & Behavior -> System Settings -> Android SDK -> SDK Tools.
and set a hook at Android Emulator
Quickly scripted the accepted answer's procedure in bash:
#!/usr/bin/env bash
DATABASES="$(mysql -e 'show databases \G' | grep "^Database" | grep -v '^Database: mysql$\|^Database: binlog$\|^Database: performance_schema\|^Database: information_schema' | sed 's/^Database: //g')"
mysqldump --databases $DATABASES -r alldatabases.sql && echo "$DATABASES" | while read -r DB; do
mysql -e "drop database \`$DB\`"
done && \
/etc/init.d/mysql stop && \
find /var/lib/mysql -maxdepth 1 -type f \( -name 'ibdata1' -or -name 'ib_logfile*' \) -delete && \
/etc/init.d/mysql start && \
mysql < alldatabases.sql && \
rm -f alldatabases.sql
Save as purge_binlogs.sh
and run as root
.
Excludes mysql
, information_schema
, performance_schema
(and binlog
directory).
Assumes you have administrator credendials in /root/.my.cnf
and that your database lives in default /var/lib/mysql
directory.
You can also purge binary logs after running this script to regain more disk space with:
PURGE BINARY LOGS BEFORE CURRENT_TIMESTAMP;
In ASP.NET Core, use PasswordHasher<TUser>
.
• Namespace: Microsoft.AspNetCore.Identity
• Assembly: Microsoft.Extensions.Identity.Core.dll
(NuGet | Source)
To hash a password, use HashPassword()
:
var hashedPassword = new PasswordHasher<object?>().HashPassword(null, password);
To verify a password, use VerifyHashedPassword()
:
var passwordVerificationResult = new PasswordHasher<object?>().VerifyHashedPassword(null, hashedPassword, password);
switch (passwordVerificationResult)
{
case PasswordVerificationResult.Failed:
Console.WriteLine("Password incorrect.");
break;
case PasswordVerificationResult.Success:
Console.WriteLine("Password ok.");
break;
case PasswordVerificationResult.SuccessRehashNeeded:
Console.WriteLine("Password ok but should be rehashed and updated.");
break;
default:
throw new ArgumentOutOfRangeException();
}
Pros:
PasswordHasherOptions
).Cons:
The following approach helped me.
Steps :
1.Go to the corresponding directory where the header file that is missing is located. (In my case,../include/unicode/coll.h was missing) and copy the directory location where the header file is located.(Copy till the include directory.)
2.Right click on your project in the Solution Explorer->Properties->Configuration Properties->VC++ Directories->Include Directories. Paste the copied path here.
3.This solved my problem.I hope this helps !
In case anyone comes here from Google trying to figure out how to prevent someone from closing a modal, don't forget that there's also a close button on the top right of the modal that needs to be removed.
I used some CSS to hide it:
#Modal .modal-header button.close {
visibility: hidden;
}
Note that using "display: none;" gets overwritten when the modal is created, so don't use that.
And using fork to date
command implie delay, there is a simple and more efficient way using pure bash built-in:
printf -v tznow '%(%z %s)T' -1
TZ=${tznow% *} printf -v yesterday '%(%Y-%m-%d)T' $(( ${tznow#* } - 86400 ))
echo $yesterday
This is a lot quicker on more system friendly than having to fork to date
.
From bash V>=5.0, there is a new variable $EPOCHSECONDS
printf -v tz '%(%z)T' -1
TZ=$tz printf -v yesterday '%(%Y-%m-%d)T' $(( EPOCHSECONDS - 86400 ))
echo $yesterday
An older post contains code for a method to resize your UIImage. The relevant portion is as follows:
+ (UIImage*)imageWithImage:(UIImage*)image
scaledToSize:(CGSize)newSize;
{
UIGraphicsBeginImageContext( newSize );
[image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];
UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return newImage;
}
As far as cropping goes, I believe that if you alter the method to use a different size for the scaling than for the context, your resulting image should be clipped to the bounds of the context.
After the file name in the HTML code I add ?forcedownload=1
This has been the simplest way for me to trigger a dialog box to save or download.
If you use R Studio http://rstudio.org/ there is a special menu to save you plot as any format you like and at any resolution you choose
Give the height of the div .youtube-thumb
the height of the image. That should set the problem in Firefox browser.
.youtube-thumb{ height: 106px }
If someone not have reference in .NET . COM (tab) or not have office installed on machine where visual was installed can do :
Add references from:
C:\Program Files (x86)\Microsoft Visual Studio 11.0\Visual Studio Tools for Office\PIA\Office15
I'm not familiar with resolve, but I've used the others:
Recursive is the default for non-fast-forward merges. We're all familiar with that one.
I've used octopus when I've had several trees that needed to be merged. You see this in larger projects where many branches have had independent development and it's all ready to come together into a single head.
An octopus branch merges multiple heads in one commit as long as it can do it cleanly.
For illustration, imagine you have a project that has a master, and then three branches to merge in (call them a, b, and c).
A series of recursive merges would look like this (note that the first merge was a fast-forward, as I didn't force recursion):
However, a single octopus merge would look like this:
commit ae632e99ba0ccd0e9e06d09e8647659220d043b9
Merge: f51262e... c9ce629... aa0f25d...
Ours == I want to pull in another head, but throw away all of the changes that head introduces.
This keeps the history of a branch without any of the effects of the branch.
(Read: It is not even looked at the changes between those branches. The branches are just merged and nothing is done to the files. If you want to merge in the other branch and every time there is the question "our file version or their version" you can use git merge -X ours
)
Subtree is useful when you want to merge in another project into a subdirectory of your current project. Useful when you have a library you don't want to include as a submodule.
As all the correct answers have stated, you cannot get this information from the decayed pointer value of the array alone. If the decayed pointer is the argument received by the function, then the size of the originating array has to be provided in some other way for the function to come to know that size.
Here's a suggestion different from what has been provided thus far,that will work: Pass a pointer to the array instead. This suggestion is similar to the C++ style suggestions, except that C does not support templates or references:
#define ARRAY_SZ 10
void foo (int (*arr)[ARRAY_SZ]) {
printf("%u\n", (unsigned)sizeof(*arr)/sizeof(**arr));
}
But, this suggestion is kind of silly for your problem, since the function is defined to know exactly the size of the array that is passed in (hence, there is little need to use sizeof at all on the array). What it does do, though, is offer some type safety. It will prohibit you from passing in an array of an unwanted size.
int x[20];
int y[10];
foo(&x); /* error */
foo(&y); /* ok */
If the function is supposed to be able to operate on any size of array, then you will have to provide the size to the function as additional information.
You might be confusing compilation from execution. Python has no compilation step! :) As soon as you type python myprogram.py
the program runs and, in your case, tries to connect to an open port 5000, giving an error if no server program is listening there. It sounds like you are familiar with two-step languages, that require compilation to produce an executable — and thus you are confusing Python's runtime compilaint that “I can't find anyone listening on port 5000!” with a compile-time error. But, in fact, your Python code is fine; you just need to bring up a listener before running it!
I got the same error when trying to compile a Go package on Debian 9.8:
# pkg-config --cflags -- libssl libcrypto
Package libssl was not found in the pkg-config search path.
Perhaps you should add the directory containing `libssl.pc'
The thing is that pkg-config
searches for package meta-information in .pc
files. Such files come from the dev package. So, even though I had libssl
installed, I still got the error. It was resolved by running:
sudo apt-get install libssl-dev
Try this Once go to the Programs and Features window->, hit the "Turn Windows Features on or off" in the left pane.
Now scroll down through the tree and find:
Internet Information Services World Wide Web Services Application Development Features ...and then check all the relevant features you require. I chose .NET 3.5 and 4.6.
and if does not work then go to Let it do its work and then you should be back to happy-development-land in VS before you know it. If not, then it could actually be a bug in Visual Studio. Please check the following patches for your version of VS: VS2010, VS2012 or VS2013. This will surely help you out.
My answer is based on this answer: How can I get the current contents of an element in webdriver just more like copy-paste.
from selenium import webdriver
driver = webdriver.Firefox()
driver.get('http://www.w3c.org')
element = driver.find_element_by_name('q')
element.send_keys('hi mom')
element_text = element.text
element_attribute_value = element.get_attribute('value')
print (element)
print ('element.text: {0}'.format(element_text))
print ('element.get_attribute(\'value\'): {0}'.format(element_attribute_value))
element = driver.find_element_by_css_selector('.description.expand_description > p')
element_text = element.text
element_attribute_value = element.get_attribute('value')
print (element)
print ('element.text: {0}'.format(element_text))
print ('element.get_attribute(\'value\'): {0}'.format(element_attribute_value))
driver.quit()
Maybe this will help.
var inputVal = $(this).closest('tr').find("td:eq(x) input").val();
Pass float to sleep, like sleep 0.1
One can also do this with a compact version of @TomAugspurger's answer, like so:
df = df1.merge(df2, how='left', on=['Year', 'Week', 'Colour']).merge(df3[['Week', 'Colour', 'Val3']], how='left', on=['Week', 'Colour'])
Method that will work. The way it is used above will not work.
declare @str varchar(50)='79136'
select
case
when @str LIKE replicate('[0-9]',LEN(@str)) then 1
else 0
end
declare @str2 varchar(50)='79D136'
select
case
when @str2 LIKE replicate('[0-9]',LEN(@str)) then 1
else 0
end
Easy peasy:
var date = DateTime.Parse("14/11/2011"); // may need some Culture help here
Console.Write(date.ToString("yyyy-MM-dd"));
Take a look at DateTime.ToString() method, Custom Date and Time Format Strings and Standard Date and Time Format Strings
string customFormattedDateTimeString = DateTime.Now.ToString("yyyy-MM-dd");
It is possible but you should use EnumSet
instead
enum MyEnum {
ONE, TWO;
public static final EnumSet<MyEnum> all = EnumSet.of(ONE, TWO);
}
I used this just a few days ago:
fun generateBitmapFromView(view: View): Bitmap {
val specWidth = View.MeasureSpec.makeMeasureSpec(1324, View.MeasureSpec.AT_MOST)
val specHeight = View.MeasureSpec.makeMeasureSpec(521, View.MeasureSpec.AT_MOST)
view.measure(specWidth, specHeight)
val width = view.measuredWidth
val height = view.measuredHeight
val bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888)
val canvas = Canvas(bitmap)
view.layout(view.left, view.top, view.right, view.bottom)
view.draw(canvas)
return bitmap
}
This code is based in this gist
For me the cause of the issue was that the format of username was incorrect. It was earlierly specified as "mydomain\user". I removed the domain part and the error was gone.
PS I was using ServerBind authentication.
From the MS SQL Server online documentation (http://technet.microsoft.com/en-us/library/ms186734.aspx ), here is their example that I have tested and works, for retrieving a specific set of rows. ROW_NUMBER requires an OVER, but you can order by whatever you like:
WITH OrderedOrders AS
(
SELECT SalesOrderID, OrderDate,
ROW_NUMBER() OVER (ORDER BY OrderDate) AS RowNumber
FROM Sales.SalesOrderHeader
)
SELECT SalesOrderID, OrderDate, RowNumber
FROM OrderedOrders
WHERE RowNumber BETWEEN 50 AND 60;
You need something like a full outer join. System.Linq.Enumerable has no method that implements a full outer join, so we have to do it ourselves.
var dict1 = list1.ToDictionary(l1 => l1.Name);
var dict2 = list2.ToDictionary(l2 => l2.Name);
//get the full list of names.
var names = dict1.Keys.Union(dict2.Keys).ToList();
//produce results
var result = names
.Select( name =>
{
Person p1 = dict1.ContainsKey(name) ? dict1[name] : null;
Person p2 = dict2.ContainsKey(name) ? dict2[name] : null;
//left only
if (p2 == null)
{
p1.Change = 0;
return p1;
}
//right only
if (p1 == null)
{
p2.Change = 0;
return p2;
}
//both
p2.Change = p2.Value - p1.Value;
return p2;
}).ToList();
Step 1: Define attributes in $appends
Step 2: Define accessor for that attributes.
Example:
<?php
...
class Movie extends Model{
protected $appends = ['cover'];
//define accessor
public function getCoverAttribute()
{
return json_decode($this->InJson)->cover;
}
If you use the FIND_IN_SET
function:
FIND_IN_SET(a, columnname)
yields all the records that have "a" in them, alone or with others
AND
FIND_IN_SET(columnname, a)
yields only the records that have "a" in them alone, NOT the ones with the others
So if record1 is (a,b,c) and record2 is (a)
FIND_IN_SET(columnname, a)
yields only record2 whereas FIND_IN_SET(a, columnname)
yields both records.
If this is something you need to do a lot in your application, or you need to chain different calls, you can create an extension method:
public static String TrimEnd(this String str, int count)
{
return str.Substring(0, str.Length - count);
}
and call it:
string oldString = "...Hello!";
string newString = oldString.Trim(1); //returns "...Hello"
or chained:
string newString = oldString.Substring(3).Trim(1); //returns "Hello"
An update on @Scott T.'s answer: the interface between Resource Server and Authorization Server for token validation was standardized in IETF RFC 7662 in October 2015, see: https://tools.ietf.org/html/rfc7662. A sample validation call would look like:
POST /introspect HTTP/1.1
Host: server.example.com
Accept: application/json
Content-Type: application/x-www-form-urlencoded
Authorization: Bearer 23410913-abewfq.123483
token=2YotnFZFEjr1zCsicMWpAA
and a sample response:
HTTP/1.1 200 OK
Content-Type: application/json
{
"active": true,
"client_id": "l238j323ds-23ij4",
"username": "jdoe",
"scope": "read write dolphin",
"sub": "Z5O3upPC88QrAjx00dis",
"aud": "https://protected.example.net/resource",
"iss": "https://server.example.com/",
"exp": 1419356238,
"iat": 1419350238,
"extension_field": "twenty-seven"
}
Of course adoption by vendors and products will have to happen over time.
You're being mislead by output -- the second approach you're taking actually does what you want, you just aren't believing it. :)
>>> foo = 'baz "\\"'
>>> foo
'baz "\\"'
>>> print(foo)
baz "\"
Incidentally, there's another string form which might be a bit clearer:
>>> print(r'baz "\"')
baz "\"
This is a very old question, but I think that a new answer might add some value since, in my opinion, no one directly addressed some of the concerns in the OP.
Despite what the accepted answer suggests, list
objects in R are not hash maps. If you want to make a parallel with python, list
are more like, you guess, python list
s (or tuple
s actually).
It's better to describe how most R objects are stored internally (the C type of an R object is SEXP
). They are made basically of three parts:
NULL
if the object doesn't have attributes).From an internal point of view, there is little difference between a list
and a numeric
vector for instance. The values they store are just different. Let's break two objects into the paradigm we described before:
x <- runif(10)
y <- list(runif(10), runif(3))
For x
:
numeric
(REALSXP
in the C-side), the length is 10 and other stuff.double
values.NULL
, since the object doesn't have any.For y
:
list
(VECSXP
in the C-side), the length is 2 and other stuff.runif(10)
and runif(3)
respectively.NULL
, as for x
.So the only difference between a numeric
vector and a list
is that the numeric
data part is made of double
values, while for the list
the data part is an array of pointers to other R objects.
What happens with names? Well, names are just some of the attributes you can assign to an object. Let's see the object below:
z <- list(a=1:3, b=LETTERS)
list
(VECSXP
in the C-side), the length is 2 and other stuff.1:3
and LETTERS
respectively.names
component which is a character
R object with value c("a","b")
.From the R level, you can retrieve the attributes of an object with the attributes
function.
The key-value typical of an hash map in R is just an illusion. When you say:
z[["a"]]
this is what happens:
[[
subset function is called;"a"
) is of type character
, so the method is instructed to search such value from the names
attribute (if present) of the object z
;names
attribute isn't there, NULL
is returned;"a"
value is searched in it. If "a"
is not a name of the object, NULL
is returned;z[[1]]
.The key-value search is rather indirect and is always positional. Also, useful to keep in mind:
in hash maps the only limit a key must have is that it must be hashable. names
in R must be strings (character
vectors);
in hash maps you cannot have two identical keys. In R, you can assign names
to an object with repeated values. For instance:
names(y) <- c("same", "same")
is perfectly valid in R. When you try y[["same"]]
the first value is retrieved. You should know why at this point.
In conclusion, the ability to give arbitrary attributes to an object gives you the appearance of something different from an external point of view. But R list
s are not hash maps in any way.
If your div is an ASP.NET control with runat="server" then AviewAnew's answer should do it. If it's just an HTML div, then you'd probably want to use JavaScript. Can you add the actual div tag to your question?
No point repeating the other answers, but please note that strdup()
can do anything it wants from a C perspective, since it is not part of any C standard. It is however defined by POSIX.1-2001.
You can do it in this way.
var somearray = ["20","40","80","400"];
somearray = somearray.map(Number);
var total = somearray.reduce(function(a,b){ return a+b },0)
console.log(total);
In my case, at some point I set my global config to use a cert that was meant for a project.
npm config list
/path/to/global/.npmrc
NODE_EXTRA_CA_CERTS = "./certs/chain.pem"
I opened the file, removed the line and npm install
worked again.
You don't need HttpServletResponse to set a header on the response. You can do it using javax.ws.rs.core.Response. Just make your method to return Response instead of entity:
return Response.ok(entity).header("Content-Disposition", "attachment; filename=\"" + fileName + "\"").build()
If you still want to use HttpServletResponse you can get it either injected to one of the class fields, or using property, or to method parameter:
@Path("/resource")
class MyResource {
// one way to get HttpServletResponse
@Context
private HttpServletResponse anotherServletResponse;
// another way
Response myMethod(@Context HttpServletResponse servletResponse) {
// ... code
}
}
As ping
works, but telnet
to port 80
does not, the HTTP port 80
is closed on your machine. I assume that your browser's HTTP connection goes through a proxy (as browsing works, how else would you read stackoverflow?).
You need to add some code to your python program, that handles the proxy, like described here:
javascript provides a classList attribute for a node element in dom. Simply using
element.classList
will return a object of form
DOMTokenList {0: "class1", 1: "class2", 2: "class3", length: 3, item: function, contains: function, add: function, remove: function…}
The object has functions like contains, add, remove which you can use
The only property corresponding in WPF to the
Winforms property: TextBox.Multiline = true
is the WPF property: TextBox.AcceptsReturn = true
.
<TextBox AcceptsReturn="True" ...... />
All other settings, such as VerticalAlignement
, WordWrap
etc., only control how the TextBox interacts in the UI but do not affect the Multiline
behaviour.
As everybody else has said, there is no difference. (As a sanity check I did some tests, but it was a waste of time, of course they work the same.)
But there are actually FOUR types of inequality operators: !=, ^=, <>, and ¬=. See this page in the Oracle SQL reference. On the website the fourth operator shows up as ÿ= but in the PDF it shows as ¬=. According to the documentation some of them are unavailable on some platforms. Which really means that ¬= almost never works.
Just out of curiosity, I'd really like to know what environment ¬= works on.
You are posting the data, so it should be $_POST. But 'name' is not the best name to use.
name = "name"
will only cause confusion IMO.
I found the following on Stephen Gilbert's website - http://stephen.io/mediaqueries/. It includes additional devices and their orientations. Works for me!
Note: If you copy the code from his site, you'll want to edit it for extra spaces, depending on the editor you're using.
/*iPad in portrait & landscape*/
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) { /* STYLES GO HERE */}
/*iPad in landscape*/
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : landscape) { /* STYLES GO HERE */}
/*iPad in portrait*/
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : portrait) { /* STYLES GO HERE */ }
for me problem was solved by,
sudo apt-get remove node
sudo apt-get remove nodejs
curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -
sudo apt-get install -y nodejs
sudo ln -s /usr/bin/nodejs /usr/bin/node
alias node=nodejs
rm -r /usr/local/lib/python2.7/dist-packages/localstack/node_modules
npm install -g npm@latest || sudo npm install -g npm@latest
Use newDirName = os.path.abspath(dir)
to create a full directory path name for the subdirectory and then list its contents as you have done with the parent (i.e. newDirList = os.listDir(newDirName)
)
You can create a separate method of your code snippet and call it recursively through the subdirectory structure. The first parameter is the directory pathname. This will change for each subdirectory.
This answer is based on the 3.1.1 version documentation of the Python Library. There is a good model example of this in action on page 228 of the Python 3.1.1 Library Reference (Chapter 10 - File and Directory Access). Good Luck!
Compare with glob
, I recommend pathlib
, filter one pattern is very simple.
from pathlib import Path
p = Path(YOUR_PATH)
filtered = [x for x in p.glob("**/*") if not x.name.startswith("eph")]
and if you want to filter more complex pattern, you can define a function to do that, just like:
def not_in_pattern(x):
return (not x.name.startswith("eph")) and not x.name.startswith("epi")
filtered = [x for x in p.glob("**/*") if not_in_pattern(x)]
use that code, you can filter all files that start with eph
or start with epi
.
Using C# 7, add this extension method to any project of your solution:
public static class IDictionaryExtensions
{
public static IEnumerable<(TKey, TValue)> Tuples<TKey, TValue>(
this IDictionary<TKey, TValue> dict)
{
foreach (KeyValuePair<TKey, TValue> kvp in dict)
yield return (kvp.Key, kvp.Value);
}
}
And use this simple syntax
foreach (var(id, value) in dict.Tuples())
{
// your code using 'id' and 'value'
}
Or this one, if you prefer
foreach ((string id, object value) in dict.Tuples())
{
// your code using 'id' and 'value'
}
In place of the traditional
foreach (KeyValuePair<string, object> kvp in dict)
{
string id = kvp.Key;
object value = kvp.Value;
// your code using 'id' and 'value'
}
The extension method transforms the KeyValuePair
of your IDictionary<TKey, TValue>
into a strongly typed tuple
, allowing you to use this new comfortable syntax.
It converts -just- the required dictionary entries to tuples
, so it does NOT converts the whole dictionary to tuples
, so there are no performance concerns related to that.
There is a only minor cost calling the extension method for creating a tuple
in comparison with using the KeyValuePair
directly, which should NOT be an issue if you are assigning the KeyValuePair
's properties Key
and Value
to new loop variables anyway.
In practice, this new syntax suits very well for most cases, except for low-level ultra-high performance scenarios, where you still have the option to simply not use it on that specific spot.
Check this out: MSDN Blog - New features in C# 7