You can add the src
folder to build path by:
- Select Java perspective.
- Right click on
src
folder. - Select Build Path > Use a source folder.
And you are done. Hope this help.
EDIT: Refer to the Eclipse documentation
use Object.keys:
Object.keys(this.formErrors).map(key => {
this.formErrors[key] = '';
const control = form.get(key);
if(control && control.dirty && !control.valid) {
const messages = this.validationMessages[key];
Object.keys(control.errors).map(key2 => {
this.formErrors[key] += messages[key2] + ' ';
});
}
});
import {FormControl,FormGroup} from '@angular/forms';
import {FormsModule,ReactiveFormsModule} from '@angular/forms';
You should also add the missing ones.
If you want all the bars to get the same color (fill
), you can easily add it inside geom_bar
.
ggplot(data=df, aes(x=c1+c2/2, y=c3)) +
geom_bar(stat="identity", width=c2, fill = "#FF6666")
Add fill = the_name_of_your_var
inside aes
to change the colors depending of the variable :
c4 = c("A", "B", "C")
df = cbind(df, c4)
ggplot(data=df, aes(x=c1+c2/2, y=c3, fill = c4)) +
geom_bar(stat="identity", width=c2)
Use scale_fill_manual()
if you want to manually the change of colors.
ggplot(data=df, aes(x=c1+c2/2, y=c3, fill = c4)) +
geom_bar(stat="identity", width=c2) +
scale_fill_manual("legend", values = c("A" = "black", "B" = "orange", "C" = "blue"))
So,
$HOME
is what I need to modify.However I have been unable to find where this mythical
$HOME
variable is set so I assumed it was a Linux system version of PATH or something.
Git 2.23 (Q3 2019) is quite explicit on how HOME
is set.
See commit e12a955 (04 Jul 2019) by Karsten Blees (kblees
).
(Merged by Junio C Hamano -- gitster
-- in commit fc613d2, 19 Jul 2019)
mingw: initialize HOME on startup
HOME
initialization was historically duplicated in many different places, including/etc/profile
, launch scripts such asgit-bash.vbs
andgitk.cmd
, and (although slightly broken) in thegit-wrapper
.Even unrelated projects such as
GitExtensions
andTortoiseGit
need to implement the same logic to be able to call git directly.Initialize
HOME
in Git's own startup code so that we can eventually retire all the duplicate initialization code.
Now, mingw.c includes the following code:
/* calculate HOME if not set */ if (!getenv("HOME")) { /* * try $HOMEDRIVE$HOMEPATH - the home share may be a network * location, thus also check if the path exists (i.e. is not * disconnected) */ if ((tmp = getenv("HOMEDRIVE"))) { struct strbuf buf = STRBUF_INIT; strbuf_addstr(&buf, tmp); if ((tmp = getenv("HOMEPATH"))) { strbuf_addstr(&buf, tmp); if (is_directory(buf.buf)) setenv("HOME", buf.buf, 1); else tmp = NULL; /* use $USERPROFILE */ } strbuf_release(&buf); } /* use $USERPROFILE if the home share is not available */ if (!tmp && (tmp = getenv("USERPROFILE"))) setenv("HOME", tmp, 1); }
The error happens because of you are trying to map a numeric vector to data
in geom_errorbar
: GVW[1:64,3]
. ggplot
only works with data.frame
.
In general, you shouldn't subset inside ggplot
calls. You are doing so because your standard errors are stored in four separate objects. Add them to your original data.frame
and you will be able to plot everything in one call.
Here with a dplyr
solution to summarise the data and compute the standard error beforehand.
library(dplyr)
d <- GVW %>% group_by(Genotype,variable) %>%
summarise(mean = mean(value),se = sd(value) / sqrt(n()))
ggplot(d, aes(x = variable, y = mean, fill = Genotype)) +
geom_bar(position = position_dodge(), stat = "identity",
colour="black", size=.3) +
geom_errorbar(aes(ymin = mean - se, ymax = mean + se),
size=.3, width=.2, position=position_dodge(.9)) +
xlab("Time") +
ylab("Weight [g]") +
scale_fill_hue(name = "Genotype", breaks = c("KO", "WT"),
labels = c("Knock-out", "Wild type")) +
ggtitle("Effect of genotype on weight-gain") +
scale_y_continuous(breaks = 0:20*4) +
theme_bw()
A few comments:
analog=True
in the call to butter
, and you should use scipy.signal.freqz
(not freqs
) to generate the frequency response.Here's my modified version of your script, followed by the plot that it generates.
import numpy as np
from scipy.signal import butter, lfilter, freqz
import matplotlib.pyplot as plt
def butter_lowpass(cutoff, fs, order=5):
nyq = 0.5 * fs
normal_cutoff = cutoff / nyq
b, a = butter(order, normal_cutoff, btype='low', analog=False)
return b, a
def butter_lowpass_filter(data, cutoff, fs, order=5):
b, a = butter_lowpass(cutoff, fs, order=order)
y = lfilter(b, a, data)
return y
# Filter requirements.
order = 6
fs = 30.0 # sample rate, Hz
cutoff = 3.667 # desired cutoff frequency of the filter, Hz
# Get the filter coefficients so we can check its frequency response.
b, a = butter_lowpass(cutoff, fs, order)
# Plot the frequency response.
w, h = freqz(b, a, worN=8000)
plt.subplot(2, 1, 1)
plt.plot(0.5*fs*w/np.pi, np.abs(h), 'b')
plt.plot(cutoff, 0.5*np.sqrt(2), 'ko')
plt.axvline(cutoff, color='k')
plt.xlim(0, 0.5*fs)
plt.title("Lowpass Filter Frequency Response")
plt.xlabel('Frequency [Hz]')
plt.grid()
# Demonstrate the use of the filter.
# First make some data to be filtered.
T = 5.0 # seconds
n = int(T * fs) # total number of samples
t = np.linspace(0, T, n, endpoint=False)
# "Noisy" data. We want to recover the 1.2 Hz signal from this.
data = np.sin(1.2*2*np.pi*t) + 1.5*np.cos(9*2*np.pi*t) + 0.5*np.sin(12.0*2*np.pi*t)
# Filter the data, and plot both the original and filtered signals.
y = butter_lowpass_filter(data, cutoff, fs, order)
plt.subplot(2, 1, 2)
plt.plot(t, data, 'b-', label='data')
plt.plot(t, y, 'g-', linewidth=2, label='filtered data')
plt.xlabel('Time [sec]')
plt.grid()
plt.legend()
plt.subplots_adjust(hspace=0.35)
plt.show()
obj
is an array in your example.
fs.writeFileSync(filename, data, [options]) requires either String
or Buffer
in the data parameter. see docs.
Try to write the array in a string format:
// writes 'https://twitter.com/#!/101Cookbooks', 'http://www.facebook.com/101cookbooks'
fs.writeFileSync('./data.json', obj.join(',') , 'utf-8');
Or:
// writes ['https://twitter.com/#!/101Cookbooks', 'http://www.facebook.com/101cookbooks']
var util = require('util');
fs.writeFileSync('./data.json', util.inspect(obj) , 'utf-8');
edit: The reason you see the array in your example is because node's implementation of console.log
doesn't just call toString
, it calls util.format
see console.js source
make sure your controller extends Symfony\Bundle\FrameworkBundle\Controller\Controller;
you should also check app/console debug:router
in terminal to see what name symfony has named the route
in my case it used a minus instead of an underscore
i.e blog-show
$uri = $this->generateUrl('blog-show', ['slug' => 'my-blog-post']);
After a brief review of the YAML cookbook cited in the question and some testing, here's my interpretation:
10
but you want it to return a String and not a Fixnum, write '10'
or "10"
.:
, {
, }
, [
, ]
, ,
, &
, *
, #
, ?
, |
, -
, <
, >
, =
, !
, %
, @
, \
).'\n'
would be returned as the string \n
."\n"
would be returned as a line feed character.!ruby/sym
to return a Ruby symbol.Seems to me that the best approach would be to not use quotes unless you have to, and then to use single quotes unless you specifically want to process escape codes.
Update
"Yes" and "No" should be enclosed in quotes (single or double) or else they will be interpreted as TrueClass and FalseClass values:
en:
yesno:
'yes': 'Yes'
'no': 'No'
In node, the Mongo driver will give you an ISO string, not the object. (ex: Mon Nov 24 2014 01:30:34 GMT-0800 (PST)
) So, simply convert it to a js Date by: new Date(ISOString);
arrays:
malloc
);sizeof
(hence the common idiom sizeof(arr)/sizeof(*arr)
, that however fails silently when used inadvertently on a pointer);std::vector
:
&vec[0]
is guaranteed to work as expected);begin()
/end()
methods, the usual STL typedef
s, ...)Also consider the "modern alternative" to arrays - std::array
; I already described in another answer the difference between std::vector
and std::array
, you may want to have a look at it.
The above answers are good, except they don't have proper tick placement on the colorbar. I like having the ticks in the middle of the color so that the number -> color mapping is more clear. You can solve this problem by changing the limits of the matshow call:
import matplotlib.pyplot as plt
import numpy as np
def discrete_matshow(data):
#get discrete colormap
cmap = plt.get_cmap('RdBu', np.max(data)-np.min(data)+1)
# set limits .5 outside true range
mat = plt.matshow(data,cmap=cmap,vmin = np.min(data)-.5, vmax = np.max(data)+.5)
#tell the colorbar to tick at integers
cax = plt.colorbar(mat, ticks=np.arange(np.min(data),np.max(data)+1))
#generate data
a=np.random.randint(1, 9, size=(10, 10))
discrete_matshow(a)
Main issue is that you first need to set the location of your x and y ticks. Also, it helps to use the more object-oriented interface to matplotlib. Namely, interact with the axes
object directly.
import matplotlib.pyplot as plt
import numpy as np
column_labels = list('ABCD')
row_labels = list('WXYZ')
data = np.random.rand(4,4)
fig, ax = plt.subplots()
heatmap = ax.pcolor(data)
# put the major ticks at the middle of each cell, notice "reverse" use of dimension
ax.set_yticks(np.arange(data.shape[0])+0.5, minor=False)
ax.set_xticks(np.arange(data.shape[1])+0.5, minor=False)
ax.set_xticklabels(row_labels, minor=False)
ax.set_yticklabels(column_labels, minor=False)
plt.show()
Hope that helps.
For a bandpass filter, ws is a tuple containing the lower and upper corner frequencies. These represent the digital frequency where the filter response is 3 dB less than the passband.
wp is a tuple containing the stop band digital frequencies. They represent the location where the maximum attenuation begins.
gpass is the maximum attenutation in the passband in dB while gstop is the attentuation in the stopbands.
Say, for example, you wanted to design a filter for a sampling rate of 8000 samples/sec having corner frequencies of 300 and 3100 Hz. The Nyquist frequency is the sample rate divided by two, or in this example, 4000 Hz. The equivalent digital frequency is 1.0. The two corner frequencies are then 300/4000 and 3100/4000.
Now lets say you wanted the stopbands to be down 30 dB +/- 100 Hz from the corner frequencies. Thus, your stopbands would start at 200 and 3200 Hz resulting in the digital frequencies of 200/4000 and 3200/4000.
To create your filter, you'd call buttord as
fs = 8000.0
fso2 = fs/2
N,wn = scipy.signal.buttord(ws=[300/fso2,3100/fso2], wp=[200/fs02,3200/fs02],
gpass=0.0, gstop=30.0)
The length of the resulting filter will be dependent upon the depth of the stop bands and the steepness of the response curve which is determined by the difference between the corner frequency and stopband frequency.
We had an issue relating to duplicated data in our database, with a date field having multiple values where we were meant to have 1. I thought I'd add the way we resolved the issue for reference.
We have a collection called "data" with a numeric "value" field and a date "date" field. We had a process which we thought was idempotent, but ended up adding 2 x values per day on second run:
{ "_id" : "1", "type":"x", "value":1.23, date : ISODate("2013-05-21T08:00:00Z")}
{ "_id" : "2", "type":"x", "value":1.23, date : ISODate("2013-05-21T17:00:00Z")}
We only need 1 of the 2 records, so had to resort the javascript to clean up the db. Our initial approach was going to be to iterate through the results and remove any field with a time of between 6am and 11am (all duplicates were in the morning), but during implementation, made a change. Here's the script used to fix it:
var data = db.data.find({"type" : "x"})
var found = [];
while (data.hasNext()){
var datum = data.next();
var rdate = datum.date;
// instead of the next set of conditions, we could have just used rdate.getHour() and checked if it was in the morning, but this approach was slightly better...
if (typeof found[rdate.getDate()+"-"+rdate.getMonth() + "-" + rdate.getFullYear()] !== "undefined") {
if (datum.value != found[rdate.getDate()+"-"+rdate.getMonth() + "-" + rdate.getFullYear()]) {
print("DISCREPENCY!!!: " + datum._id + " for date " + datum.date);
}
else {
print("Removing " + datum._id);
db.data.remove({ "_id": datum._id});
}
}
else {
found[rdate.getDate()+"-"+rdate.getMonth() + "-" + rdate.getFullYear()] = datum.value;
}
}
and then ran it with mongo thedatabase fixer_script.js
$host = $request->server->get('HTTP_HOST');
$base = (!empty($request->server->get('BASE'))) ? $request->server->get('BASE') : '';
$getBaseUrl = $host.$base;
To start, Joe Kington's answer provides very good advice using a gui-neutral approach, and you should definitely take his advice (especially about Blitting) and put it into practice. More info on this approach, read the Matplotlib Cookbook
However, the non-GUI-neutral (GUI-biased?) approach is key to speeding up the plotting. In other words, the backend is extremely important to plot speed.
Put these two lines before you import anything else from matplotlib:
import matplotlib
matplotlib.use('GTKAgg')
Of course, there are various options to use instead of GTKAgg
, but according to the cookbook mentioned before, this was the fastest. See the link about backends for more options.
I use task shadowJar
by plugin .
com.github.jengelman.gradle.plugins:shadow:5.2.0
Usage just run ./gradlew app::shadowJar
result file will be at MyProject/app/build/libs/shadow.jar
top level build.gradle
file :
apply plugin: 'kotlin'
buildscript {
ext.kotlin_version = '1.3.61'
repositories {
mavenLocal()
mavenCentral()
jcenter()
}
dependencies {
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
classpath 'com.github.jengelman.gradle.plugins:shadow:5.2.0'
}
}
app module level build.gradle
file
apply plugin: 'java'
apply plugin: 'kotlin'
apply plugin: 'kotlin-kapt'
apply plugin: 'application'
apply plugin: 'com.github.johnrengelman.shadow'
sourceCompatibility = 1.8
kapt {
generateStubs = true
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation "org.seleniumhq.selenium:selenium-java:4.0.0-alpha-4"
shadow "org.seleniumhq.selenium:selenium-java:4.0.0-alpha-4"
implementation project(":module_remote")
shadow project(":module_remote")
}
jar {
exclude 'META-INF/*.SF', 'META-INF/*.DSA', 'META-INF/*.RSA', 'META-INF/*.MF'
manifest {
attributes(
'Main-Class': 'com.github.kolyall.TheApplication',
'Class-Path': configurations.compile.files.collect { "lib/$it.name" }.join(' ')
)
}
}
shadowJar {
baseName = 'shadow'
classifier = ''
archiveVersion = ''
mainClassName = 'com.github.kolyall.TheApplication'
mergeServiceFiles()
}
If you wish to use CV2, you need to use the resize
function.
For example, this will resize both axes by half:
small = cv2.resize(image, (0,0), fx=0.5, fy=0.5)
and this will resize the image to have 100 cols (width) and 50 rows (height):
resized_image = cv2.resize(image, (100, 50))
Another option is to use scipy
module, by using:
small = scipy.misc.imresize(image, 0.5)
There are obviously more options you can read in the documentation of those functions (cv2.resize, scipy.misc.imresize).
Update:
According to the SciPy documentation:
imresize
is deprecated in SciPy 1.0.0, and will be removed in 1.2.0.
Useskimage.transform.resize
instead.
Note that if you're looking to resize by a factor, you may actually want skimage.transform.rescale
.
First of all, the term generator originally was somewhat ill-defined in Python, leading to lots of confusion. You probably mean iterators and iterables (see here). Then in Python there are also generator functions (which return a generator object), generator objects (which are iterators) and generator expressions (which are evaluated to a generator object).
According to the glossary entry for generator it seems that the official terminology is now that generator is short for "generator function". In the past the documentation defined the terms inconsistently, but fortunately this has been fixed.
It might still be a good idea to be precise and avoid the term "generator" without further specification.
See Function Definitions in the Language Reference.
If the form
*identifier
is present, it is initialized to a tuple receiving any excess positional parameters, defaulting to the empty tuple. If the form**identifier
is present, it is initialized to a new dictionary receiving any excess keyword arguments, defaulting to a new empty dictionary.
Also, see Function Calls.
Assuming that one knows what positional and keyword arguments are, here are some examples:
Example 1:
# Excess keyword argument (python 2) example:
def foo(a, b, c, **args):
print "a = %s" % (a,)
print "b = %s" % (b,)
print "c = %s" % (c,)
print args
foo(a="testa", d="excess", c="testc", b="testb", k="another_excess")
As you can see in the above example, we only have parameters a, b, c
in the signature of the foo
function. Since d
and k
are not present, they are put into the args dictionary. The output of the program is:
a = testa
b = testb
c = testc
{'k': 'another_excess', 'd': 'excess'}
Example 2:
# Excess positional argument (python 2) example:
def foo(a, b, c, *args):
print "a = %s" % (a,)
print "b = %s" % (b,)
print "c = %s" % (c,)
print args
foo("testa", "testb", "testc", "excess", "another_excess")
Here, since we're testing positional arguments, the excess ones have to be on the end, and *args
packs them into a tuple, so the output of this program is:
a = testa
b = testb
c = testc
('excess', 'another_excess')
You can also unpack a dictionary or a tuple into arguments of a function:
def foo(a,b,c,**args):
print "a=%s" % (a,)
print "b=%s" % (b,)
print "c=%s" % (c,)
print "args=%s" % (args,)
argdict = dict(a="testa", b="testb", c="testc", excessarg="string")
foo(**argdict)
Prints:
a=testa
b=testb
c=testc
args={'excessarg': 'string'}
And
def foo(a,b,c,*args):
print "a=%s" % (a,)
print "b=%s" % (b,)
print "c=%s" % (c,)
print "args=%s" % (args,)
argtuple = ("testa","testb","testc","excess")
foo(*argtuple)
Prints:
a=testa
b=testb
c=testc
args=('excess',)
If you are willing to use Three20 framework, it has a category on NSString that adds stringByRemovingHTMLTags method. See NSStringAdditions.h in Three20Core subproject.
One site I keep coming back to is http://www.javapractices.com. It covers most of the techniques that are discussed in the Effective Java book. Also another good site to check up coding examples (from basic to advanced) is http://www.java2s.com
If I want tranfer only the response variable y instead of a linear model with x specified, eg I wanna transfer/normalize a list of data, I can take 1 for x, then the object becomes a linear model:
library(MASS)
y = rf(500,30,30)
hist(y,breaks = 12)
result = boxcox(y~1, lambda = seq(-5,5,0.5))
mylambda = result$x[which.max(result$y)]
mylambda
y2 = (y^mylambda-1)/mylambda
hist(y2)
I realize this has been answered, but there is a slight issue with the accepted solution. It will return false positives. Easy to fix:
SELECT * FROM Products P
WHERE (@Status='published' and P.Status IN (1,3))
or (@Status='standby' and P.Status IN (2,5,9,6))
or (@Status='deleted' and P.Status IN (4,5,8,10))
or (@Status not in ('published','standby','deleted') and P.Status IN (1,2))
Parentheses aren't needed (although perhaps easier to read hence why I included them).
textarea {
width: 700px;
height: 100px;
resize: none; }
assign your required width and height for the textarea and then use. resize: none ; css property which will disable the textarea's stretchable property.
Try:
float x = (float)rand()/(float)(RAND_MAX/a);
To understand how this works consider the following.
N = a random value in [0..RAND_MAX] inclusively.
The above equation (removing the casts for clarity) becomes:
N/(RAND_MAX/a)
But division by a fraction is the equivalent to multiplying by said fraction's reciprocal, so this is equivalent to:
N * (a/RAND_MAX)
which can be rewritten as:
a * (N/RAND_MAX)
Considering N/RAND_MAX
is always a floating point value between 0.0 and 1.0, this will generate a value between 0.0 and a
.
Alternatively, you can use the following, which effectively does the breakdown I showed above. I actually prefer this simply because it is clearer what is actually going on (to me, anyway):
float x = ((float)rand()/(float)(RAND_MAX)) * a;
Note: the floating point representation of a
must be exact or this will never hit your absolute edge case of a
(it will get close). See this article for the gritty details about why.
Sample
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main(int argc, char *argv[])
{
srand((unsigned int)time(NULL));
float a = 5.0;
for (int i=0;i<20;i++)
printf("%f\n", ((float)rand()/(float)(RAND_MAX)) * a);
return 0;
}
Output
1.625741
3.832026
4.853078
0.687247
0.568085
2.810053
3.561830
3.674827
2.814782
3.047727
3.154944
0.141873
4.464814
0.124696
0.766487
2.349450
2.201889
2.148071
2.624953
2.578719
If example
is not final
then a simple reassignment would work:
example = new String[example.length];
This assumes you need the array to remain the same size. If that's not necessary then create an empty array:
example = new String[0];
If it is final
then you could null
out all the elements:
Arrays.fill( example, null );
ArrayList
or similar collectionThis is what I use. I do this first query to find the sessions and the users:
select s.sid, s.serial#, p.spid, s.username, s.schemaname
, s.program, s.terminal, s.osuser
from v$session s
join v$process p
on s.paddr = p.addr
where s.type != 'BACKGROUND';
This will let me know if there are multiple sessions for the same user. Then I usually check to verify if a session is blocking the database.
SELECT SID, SQL_ID, USERNAME, BLOCKING_SESSION, COMMAND, MODULE, STATUS FROM v$session WHERE BLOCKING_SESSION IS NOT NULL;
Then I run an ALTER statement to kill a specific session in this format:
ALTER SYSTEM KILL SESSION 'sid,serial#';
For example:
ALTER SYSTEM KILL SESSION '314, 2643';
This minimal CMakeLists.txt
file compiles a simple shared library:
cmake_minimum_required(VERSION 2.8)
project (test)
set(CMAKE_BUILD_TYPE Release)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include)
add_library(test SHARED src/test.cpp)
However, I have no experience copying files to a different destination with CMake. The file command with the COPY/INSTALL signature looks like it might be useful.
I found "kill -0" does not work if the process is owned by root (or other), so I used pgrep and came up with:
while pgrep -u root process_name > /dev/null; do sleep 1; done
This would have the disadvantage of probably matching zombie processes.
I've used the following advice from the docs https://symfony.com/doc/current/console/request_context.html to get absolute urls in emails:
# config/services.yaml
parameters:
router.request_context.host: 'example.org'
router.request_context.scheme: 'https'
It's a good practice if you need them. It's also a good practice is they make sense, so future coders can understand what you're doing.
But generally, no it's not a good practice to attach 10 class names to an object because most likely whatever you're using them for, you could accomplish the same thing with far fewer classes. Probably just 1 or 2.
To qualify that statement, javascript plugins and scripts may append far more classnames to do whatever it is they're going to do. Modernizr for example appends anywhere from 5 - 25 classes to your body tag, and there's a very good reason for it. jQuery UI appends lots of classnames when you use one of the widgets in that library.
That's because you defined your own version of name
for your enum, and getByName
doesn't use that.
getByName("COLUMN_HEADINGS")
would probably work.
If you want to make sure that your $
operator does not suffer from XSS hack you can implement ServletContextListener
and do some checks there.
The complete solution at: http://pukkaone.github.io/2011/01/03/jsp-cross-site-scripting-elresolver.html
@WebListener
public class EscapeXmlELResolverListener implements ServletContextListener {
private static final Logger LOG = LoggerFactory.getLogger(EscapeXmlELResolverListener.class);
@Override
public void contextInitialized(ServletContextEvent event) {
LOG.info("EscapeXmlELResolverListener initialized ...");
JspFactory.getDefaultFactory()
.getJspApplicationContext(event.getServletContext())
.addELResolver(new EscapeXmlELResolver());
}
@Override
public void contextDestroyed(ServletContextEvent event) {
LOG.info("EscapeXmlELResolverListener destroyed");
}
/**
* {@link ELResolver} which escapes XML in String values.
*/
public class EscapeXmlELResolver extends ELResolver {
private ThreadLocal<Boolean> excludeMe = new ThreadLocal<Boolean>() {
@Override
protected Boolean initialValue() {
return Boolean.FALSE;
}
};
@Override
public Object getValue(ELContext context, Object base, Object property) {
try {
if (excludeMe.get()) {
return null;
}
// This resolver is in the original resolver chain. To prevent
// infinite recursion, set a flag to prevent this resolver from
// invoking the original resolver chain again when its turn in the
// chain comes around.
excludeMe.set(Boolean.TRUE);
Object value = context.getELResolver().getValue(
context, base, property);
if (value instanceof String) {
value = StringEscapeUtils.escapeHtml4((String) value);
}
return value;
} finally {
excludeMe.remove();
}
}
@Override
public Class<?> getCommonPropertyType(ELContext context, Object base) {
return null;
}
@Override
public Iterator<FeatureDescriptor> getFeatureDescriptors(ELContext context, Object base){
return null;
}
@Override
public Class<?> getType(ELContext context, Object base, Object property) {
return null;
}
@Override
public boolean isReadOnly(ELContext context, Object base, Object property) {
return true;
}
@Override
public void setValue(ELContext context, Object base, Object property, Object value){
throw new UnsupportedOperationException();
}
}
}
Again: This only guards the $
. Please also see other answers.
As has already been said: figure
will create a new figure for your next plots. While calling figure
you can also configure it. Example:
figHandle = figure('Name', 'Name of Figure', 'OuterPosition',[1, 1, scrsz(3), scrsz(4)]);
The example sets the name for the window and the outer size of it in relation to the used screen.
Here figHandle
is the handle to the resulting figure and can be used later to change appearance and content. Examples:
Dot notation:
figHandle.PaperOrientation = 'portrait';
figHandle.PaperUnits = 'centimeters';
Old Style:
set(figHandle, 'PaperOrientation', 'portrait', 'PaperUnits', 'centimeters');
Using the handle with dot notation or set
, options for printing are configured here.
By keeping the handles for the figures with distinc names you can interact with multiple active figures. To set a existing figure as your active, call figure(figHandle)
. New plots will go there now.
if(str.indexOf(",")!=-1) { str = str.replaceAll(",","."); }
or even better
str = str.replace(',', '.');
A solution without using imported modules or sets:
text = "ask not what your country can do for you ask what you can do for your country"
sentence = text.split(" ")
noduplicates = [(sentence[i]) for i in range (0,len(sentence)) if sentence[i] not in sentence[:i]]
print(noduplicates)
Gives output:
['ask', 'not', 'what', 'your', 'country', 'can', 'do', 'for', 'you']
In my case, I added:
Content-Type: application/x-www-form-urlencoded
solved my problem completely.
You should really check the log. It seems that quite a few components can cause the Windows SDK installer to fail to install with this useless error message. For instance it could be the Visual C++ Redistributable Package as mentioned there.
public static void writeStringAsFile(final String fileContents, String fileName) {
Context context = App.instance.getApplicationContext();
try {
FileWriter out = new FileWriter(new File(context.getFilesDir(), fileName));
out.write(fileContents);
out.close();
} catch (IOException e) {
Logger.logError(TAG, e);
}
}
public static String readFileAsString(String fileName) {
Context context = App.instance.getApplicationContext();
StringBuilder stringBuilder = new StringBuilder();
String line;
BufferedReader in = null;
try {
in = new BufferedReader(new FileReader(new File(context.getFilesDir(), fileName)));
while ((line = in.readLine()) != null) stringBuilder.append(line);
} catch (FileNotFoundException e) {
Logger.logError(TAG, e);
} catch (IOException e) {
Logger.logError(TAG, e);
}
return stringBuilder.toString();
}
RecyclerView can have any number of viewholders you want but for better readability lets see how to create one with two ViewHolders.
It can be done in three simple steps
public int getItemViewType(int position)
onCreateViewHolder()
methodonBindViewHolder()
methodHere is a small code snippet
public class YourListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private static final int LAYOUT_ONE= 0;
private static final int LAYOUT_TWO= 1;
@Override
public int getItemViewType(int position)
{
if(position==0)
return LAYOUT_ONE;
else
return LAYOUT_TWO;
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view =null;
RecyclerView.ViewHolder viewHolder = null;
if(viewType==LAYOUT_ONE)
{
view = LayoutInflater.from(parent.getContext()).inflate(R.layout.one,parent,false);
viewHolder = new ViewHolderOne(view);
}
else
{
view = LayoutInflater.from(parent.getContext()).inflate(R.layout.two,parent,false);
viewHolder= new ViewHolderTwo(view);
}
return viewHolder;
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) {
if(holder.getItemViewType()== LAYOUT_ONE)
{
// Typecast Viewholder
// Set Viewholder properties
// Add any click listener if any
}
else {
ViewHolderOne vaultItemHolder = (ViewHolderOne) holder;
vaultItemHolder.name.setText(displayText);
vaultItemHolder.name.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
.......
}
});
}
}
//**************** VIEW HOLDER 1 ******************//
public class ViewHolderOne extends RecyclerView.ViewHolder {
public TextView name;
public ViewHolderOne(View itemView) {
super(itemView);
name = (TextView)itemView.findViewById(R.id.displayName);
}
}
//**************** VIEW HOLDER 2 ******************//
public class ViewHolderTwo extends RecyclerView.ViewHolder{
public ViewHolderTwo(View itemView) {
super(itemView);
..... Do something
}
}
}
In my opinion,the starting point to create this kind of recyclerView is the knowledge of this method. Since this method is optional to override therefore it is not visible in RecylerView class by default which in turn makes many developers(including me) wonder where to begin. Once you know that this method exists, creating such RecyclerView would be a cakewalk.
Lets see one example to prove my point. If you want to show two layout at alternate positions do this
@Override
public int getItemViewType(int position)
{
if(position%2==0) // Even position
return LAYOUT_ONE;
else // Odd position
return LAYOUT_TWO;
}
Check out the project where I have implemented this
screen.orientation.lock('landscape');
Will force it to change to and stay in landscape mode. Tested on Nexus 5.
yes, there is:
object[] x = new object[2];
x[0] = new { firstName = "john", lastName = "walter" };
x[1] = new { brand = "BMW" };
you were practically there, just the declaration of the anonymous types was a little off.
The problem is that flex: 1
sets flex-basis: 0
. Instead, you need
.container .box {
min-width: 200px;
max-width: 400px;
flex-basis: auto; /* default value */
flex-grow: 1;
}
.container {_x000D_
display: -webkit-flex;_x000D_
display: flex;_x000D_
-webkit-flex-wrap: wrap;_x000D_
flex-wrap: wrap;_x000D_
}_x000D_
_x000D_
.container .box {_x000D_
-webkit-flex-grow: 1;_x000D_
flex-grow: 1;_x000D_
min-width: 100px;_x000D_
max-width: 400px;_x000D_
height: 200px;_x000D_
background-color: #fafa00;_x000D_
overflow: hidden;_x000D_
}
_x000D_
<div class="container">_x000D_
<div class="box">_x000D_
<table>_x000D_
<tr>_x000D_
<td>Content</td>_x000D_
<td>Content</td>_x000D_
<td>Content</td>_x000D_
</tr>_x000D_
</table> _x000D_
</div>_x000D_
<div class="box">_x000D_
<table>_x000D_
<tr>_x000D_
<td>Content</td>_x000D_
</tr>_x000D_
</table> _x000D_
</div>_x000D_
<div class="box">_x000D_
<table>_x000D_
<tr>_x000D_
<td>Content</td>_x000D_
<td>Content</td>_x000D_
</tr>_x000D_
</table> _x000D_
</div>_x000D_
</div>
_x000D_
Try going to Project -> Properties -> Java Build Path -> Order & Export
And Confirm Android Private Libraries are checked for your project and for all other library projects you are using in your Application.
Once you have cloned the repo, you have everything: you can then hg up branchname
or hg up tagname
to update your working copy.
UP: hg up
is a shortcut of hg update
, which also has hg checkout
alias for people with git
habits.
class from wepapp:
> mvn clean install
> java -cp "webapp/target/webapp-1.17.0-SNAPSHOT/WEB-INF/lib/tool-jar-1.17.0-SNAPSHOT.jar;webapp/target/webapp-1.17.0-SNAPSHOT/WEB-INF/lib/*" com.xx.xx.util.EncryptorUtils param1 param2
How about:
df <- data.frame(matrix(ncol = 3, nrow = 0))
x <- c("name", "age", "gender")
colnames(df) <- x
To do all these operations in one-liner:
setNames(data.frame(matrix(ncol = 3, nrow = 0)), c("name", "age", "gender"))
#[1] name age gender
#<0 rows> (or 0-length row.names)
Or
data.frame(matrix(ncol=3,nrow=0, dimnames=list(NULL, c("name", "age", "gender"))))
// let timeObject = new Date();
// let milliseconds= 10 * 1000; // 10 seconds = 10000 milliseconds
timeObject = new Date(timeObject.getTime() + milliseconds);
Using Integer.parseIn(String), you can parse string value into integer. Also you need to catch exception in case if input string is not a proper number.
int x = 0;
try {
x = Integer.parseInt("100"); // Parse string into number
} catch (NumberFormatException e) {
e.printStackTrace();
}
For Unicode support:
public class HexadecimalEncoding
{
public static string ToHexString(string str)
{
var sb = new StringBuilder();
var bytes = Encoding.Unicode.GetBytes(str);
foreach (var t in bytes)
{
sb.Append(t.ToString("X2"));
}
return sb.ToString(); // returns: "48656C6C6F20776F726C64" for "Hello world"
}
public static string FromHexString(string hexString)
{
var bytes = new byte[hexString.Length / 2];
for (var i = 0; i < bytes.Length; i++)
{
bytes[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16);
}
return Encoding.Unicode.GetString(bytes); // returns: "Hello world" for "48656C6C6F20776F726C64"
}
}
try to set the transparency with the android-studio designer in activity_main.xml. If you want it to be transparent, write it for example like this for white: White: #FFFFFF, with 50% transparency: #80FFFFFF This is for Kotlin tho, not sure if that will work the same way for basic android (java).
You could profile it, if you really cared. Write a loop of many iterations and see what happens. Chances are, however, that this is not the bottleneck in your application, and TrimStart seems the most semantically correct. Strive to write code readably before optimizing.
Sometimes EF does not know that is dealing with a computed column or a trigger. By design, those operations will set a value outside of EF after an insert.
The fix is to specify Computed
in EF's edmx
for that column in the StoreGeneratedPattern
property.
For me it was when the column had a trigger which inserted the current date and time, see below in the third section.
Steps To Resolve
In Visual Studio open the Model Browser
page then Model
then Entity Types
-> then
StoreGeneratedPattern
Computed
For this situation other answers are workarounds, for the purpose of the column is to have a time/date specified when the record was created, and that is SQL's job to execute a trigger to add the correct time. Such as this SQL trigger:
DEFAULT (GETDATE()) FOR [DateCreated]
.
This is what jQuery API Doc says about .offset()
:
Get the current coordinates of the first element, or set the coordinates of every element, in the set of matched elements, relative to the document.
This is what MDN Web API says about .offsetTop
:
offsetTop returns the distance of the current element relative to the top of the offsetParent node
This is what jQuery v.1.11 .offset()
basically do when getting the coords:
var box = { top: 0, left: 0 };
// BlackBerry 5, iOS 3 (original iPhone)
if ( typeof elem.getBoundingClientRect !== strundefined ) {
box = elem.getBoundingClientRect();
}
win = getWindow( doc );
return {
top: box.top + ( win.pageYOffset || docElem.scrollTop ) - ( docElem.clientTop || 0 ),
left: box.left + ( win.pageXOffset || docElem.scrollLeft ) - ( docElem.clientLeft || 0 )
};
pageYOffset
intuitively says how much was the page scrolleddocElem.scrollTop
is the fallback for IE<9 (which are BTW unsupported in jQuery 2)docElem.clientTop
is the width of the top border of an element (the document in this case)elem.getBoundingClientRect()
gets the coords relative to the Conclusion
element.offsetTop
. Add element.scrollTop
if you want to take the parent scrolling into account. (or use jQuery .position() if you are fan of that library)element.getBoundingClientRect().top
. Add window.pageYOffset
if you want to take the document scrolling into account. You don't need to subtract document's clientTop
if the document has no border (usually it doesn't), so you have position relative to the documentelement.clientTop
if you don't consider the element border as the part of the elementLate to the party. I'm on Windows 10 with JDK 1.8 and Eclipse MARS 1.
I find that
getClass().getClassLoader().getResourceAsStream("path/to/resource");
works and
getClass().getClassLoader().getResourceAsStream("path"+File.separator+"to"+File.separator+"resource");
does not work and
getClass().getClassLoader().getResourceAsStream("path\to\resource");
does not work. The last two are equivalent. So... I have good reason to NOT use File.separator.
These functions work well
private void setActionbarTextColor(ActionBar actBar, int color) {
String title = actBar.getTitle().toString();
Spannable spannablerTitle = new SpannableString(title);
spannablerTitle.setSpan(new ForegroundColorSpan(color), 0, spannablerTitle.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
actBar.setTitle(spannablerTitle);
}
then to use it just feed it your action bar and the new color i.e.
ActionBar actionBar = getActionBar(); // Or getSupportActionBar() if using appCompat
int red = Color.RED
setActionbarTextColor(actionBar, red);
You can use an extension function like this:
private fun ActionBar.setTitleColor(color: Int) {
val text = SpannableString(title ?: "")
text.setSpan(ForegroundColorSpan(color),0,text.length, Spannable.SPAN_INCLUSIVE_INCLUSIVE)
title = text
}
And then apply to your ActionBar
with
actionBar?.setTitleColor(Color.RED)
Did you try using System.Net.WebClient
?
$url = 'https://IPADDRESS/resource'
$wc = New-Object System.Net.WebClient
$wc.Credentials = New-Object System.Net.NetworkCredential("username","password")
$wc.DownloadString($url)
A great book on REST is REST in Practice.
Must reads are Representational State Transfer (REST) and REST APIs must be hypertext-driven
See Martin Fowlers article the Richardson Maturity Model (RMM) for an explanation on what an RESTful service is.
To be RESTful a Service needs to fulfill the Hypermedia as the Engine of Application State. (HATEOAS), that is, it needs to reach level 3 in the RMM, read the article for details or the slides from the qcon talk.
The HATEOAS constraint is an acronym for Hypermedia as the Engine of Application State. This principle is the key differentiator between a REST and most other forms of client server system.
...
A client of a RESTful application need only know a single fixed URL to access it. All future actions should be discoverable dynamically from hypermedia links included in the representations of the resources that are returned from that URL. Standardized media types are also expected to be understood by any client that might use a RESTful API. (From Wikipedia, the free encyclopedia)
REST Litmus Test for Web Frameworks is a similar maturity test for web frameworks.
Approaching pure REST: Learning to love HATEOAS is a good collection of links.
REST versus SOAP for the Public Cloud discusses the current levels of REST usage.
REST and versioning discusses Extensibility, Versioning, Evolvability, etc. through Modifiability
Markdown syntax for images (external/internal):
![test](https://github.com/favicon.ico)
HTML code for sizing images (internal/external):
<img src="https://github.com/favicon.ico" width="48">
Example:
This should work:
[[ http://url.to/image.png | height = 100px ]]
Source: https://guides.github.com/features/mastering-markdown/
It can be done with more flexibility setting a height constraint
to the label in Interface Builder, binding it to the code with an IBOutlet and changing that height to show the text in a concrete vertical position. Example for center and bottom alignment:
labelHeightConstraint.constant = centerAlignment ? 30 : 15
layoutIfNeeded()
If you want to disable particular date(s) in jquery datepicker then here is the simple demo for you.
<script type="text/javascript">
var arrDisabledDates = {};
arrDisabledDates[new Date("08/28/2017")] = new Date("08/28/2017");
arrDisabledDates[new Date("12/23/2017")] = new Date("12/23/2017");
$(".datepicker").datepicker({
dateFormat: "dd/mm/yy",
beforeShowDay: function (date) {
var day = date.getDay(),
bDisable = arrDisabledDates[date];
if (bDisable)
return [false, "", ""]
}
});
</script>
Using Array.Filter() with Arrow Functions we can achieve this using
users = users.filter(x => x.name == 'Mark' && x.address == 'England');
Here is the complete snippet
// initializing list of users_x000D_
var users = [{_x000D_
name: 'John',_x000D_
email: '[email protected]',_x000D_
age: 25,_x000D_
address: 'USA'_x000D_
},_x000D_
{_x000D_
name: 'Tom',_x000D_
email: '[email protected]',_x000D_
age: 35,_x000D_
address: 'England'_x000D_
},_x000D_
{_x000D_
name: 'Mark',_x000D_
email: '[email protected]',_x000D_
age: 28,_x000D_
address: 'England'_x000D_
}_x000D_
];_x000D_
_x000D_
//filtering the users array and saving _x000D_
//result back in users variable_x000D_
users = users.filter(x => x.name == 'Mark' && x.address == 'England');_x000D_
_x000D_
_x000D_
//logging out the result in console_x000D_
console.log(users);
_x000D_
I want to understand the lock each transaction isolation takes on the table
For example, you have 3 concurrent processes A, B and C. A starts a transaction, writes data and commit/rollback (depending on results). B just executes a SELECT
statement to read data. C reads and updates data. All these process work on the same table T.
WHERE aField > 10 AND aField < 20
, A inserts data where aField
value is between 10 and 20, then B reads the data again and get a different result.I want to understand where we define these isolation levels: only at JDBC/hibernate level or in DB also
Using JDBC, you define it using Connection#setTransactionIsolation
.
Using Hibernate:
<property name="hibernate.connection.isolation">2</property>
Where
Hibernate configuration is taken from here (sorry, it's in Spanish).
By the way, you can set the isolation level on RDBMS as well:
SET ISOLATION TO DIRTY READ
sentence.)and on and on...
This is just an Improvement of @soulcheck 's answer, and fix of the typo in forEach (missing closing bracket);
server.get('/usersList', (req, res) =>
User.find({}, (err, users) =>
res.send(users.reduce((userMap, item) => {
userMap[item.id] = item
return userMap
}, {}));
);
);
cheers!
Use this condition:
if (jQuery(".profile-page-cont").css('display') == 'block'){
// Condition
}
Try using jQuery to avoid cross browser compatibility problems...
$("textarea").keyup(function(){
if($(this).text().length > 500){
var text = $(this).text();
$(this).text(text.substr(0, 500));
}
});
In general I put it in a special folder "res" or "resources as already said, but after for the web application, I copy the log4j.properties
with the ant task to the WEB-INF/classes directory. It is the same like letting the file at the root of the src/ folder but generally I prefer to see it in a dedicated folder.
With Maven, the usual place to put is in the folder src/main/resources
as answered in this other post.
All resources there will go to your build in the root classpath (e.g. target/classes/
)
If you want a powerful logger, you can have also a look to slf4j library which is a logger facade and can use the log4j implementation behind.
You are missing an echo. Each time that you want to show the value of a variable to HTML you need to echo it.
<input type="text" name="idtest" value="<?php echo $idtest; ?>" >
Note: Depending on the value, your echo is the function you use to escape it like htmlspecialchars.
The volatile
and transient
modifiers can be applied to fields of classes1 irrespective of field type. Apart from that, they are unrelated.
The transient
modifier tells the Java object serialization subsystem to exclude the field when serializing an instance of the class. When the object is then deserialized, the field will be initialized to the default value; i.e. null
for a reference type, and zero or false
for a primitive type. Note that the JLS (see 8.3.1.3) does not say what transient
means, but defers to the Java Object Serialization Specification. Other serialization mechanisms may pay attention to a field's transient
-ness. Or they may ignore it.
(Note that the JLS permits a static
field to be declared as transient
. This combination doesn't make sense for Java Object Serialization, since it doesn't serialize statics anyway. However, it could make sense in other contexts, so there is some justification for not forbidding it outright.)
The volatile
modifier tells the JVM that writes to the field should always be synchronously flushed to memory, and that reads of the field should always read from memory. This means that fields marked as volatile can be safely accessed and updated in a multi-thread application without using native or standard library-based synchronization. Similarly, reads and writes to volatile fields are atomic. (This does not apply to >>non-volatile<< long
or double
fields, which may be subject to "word tearing" on some JVMs.) The relevant parts of the JLS are 8.3.1.4, 17.4 and 17.7.
1 - But not to local variables or parameters.
To work around the Mac incompatibility, I came up with
echo `php -r "echo realpath('foo');"`
Not great but cross OS
When using the data on the server, your characters can reach with the addition of slashes eg if string = {"hello"} comes as string = {\ "hello \"} to solve the following function can be used later to use json decode.
<?php
function stripslashes_deep($value)
{
$value = is_array($value) ?
array_map('stripslashes_deep', $value) :
stripslashes($value);
return $value;
}
$array = $_POST['jObject'];
$array = stripslashes_deep($array);
$data = json_decode($array, true);
print_r($data);
?>
First instantiate a firefox driver
WebDriver driver = new FirefoxDriver();
then maximize it
driver.manage().window().maximize();
Answers by @speckledcarp and @Jamesl are both brilliant. In my case, however, I needed a component whose height could extend the full window height, conditional at render time.... but calling a HOC within render()
re-renders the entire subtree. BAAAD.
Plus, I wasn't interested in getting the values as props but simply wanted a parent div
that would occupy the entire screen height (or width, or both).
So I wrote a Parent component providing a full height (and/or width) div. Boom.
A use case:
class MyPage extends React.Component {
render() {
const { data, ...rest } = this.props
return data ? (
// My app uses templates which misbehave badly if you manually mess around with the container height, so leave the height alone here.
<div>Yay! render a page with some data. </div>
) : (
<FullArea vertical>
// You're now in a full height div, so containers will vertically justify properly
<GridContainer justify="center" alignItems="center" style={{ height: "inherit" }}>
<GridItem xs={12} sm={6}>
Page loading!
</GridItem>
</GridContainer>
</FullArea>
)
Here's the component:
import React, { Component } from 'react'
import PropTypes from 'prop-types'
class FullArea extends Component {
constructor(props) {
super(props)
this.state = {
width: 0,
height: 0,
}
this.getStyles = this.getStyles.bind(this)
this.updateWindowDimensions = this.updateWindowDimensions.bind(this)
}
componentDidMount() {
this.updateWindowDimensions()
window.addEventListener('resize', this.updateWindowDimensions)
}
componentWillUnmount() {
window.removeEventListener('resize', this.updateWindowDimensions)
}
getStyles(vertical, horizontal) {
const styles = {}
if (vertical) {
styles.height = `${this.state.height}px`
}
if (horizontal) {
styles.width = `${this.state.width}px`
}
return styles
}
updateWindowDimensions() {
this.setState({ width: window.innerWidth, height: window.innerHeight })
}
render() {
const { vertical, horizontal } = this.props
return (
<div style={this.getStyles(vertical, horizontal)} >
{this.props.children}
</div>
)
}
}
FullArea.defaultProps = {
horizontal: false,
vertical: false,
}
FullArea.propTypes = {
horizontal: PropTypes.bool,
vertical: PropTypes.bool,
}
export default FullArea
Because strip()
only strips trailing and leading characters, based on what you provided. I suggest:
>>> import re
>>> name = "Barack (of Washington)"
>>> name = re.sub('[\(\)\{\}<>]', '', name)
>>> print(name)
Barack of Washington
To the C language, '\0'
means exactly the same thing as the integer constant 0
(same value zero, same type int
).
To someone reading the code, writing '\0'
suggests that you're planning to use this particular zero as a character.
Depending on the hibernate flush mode that you are using (AUTO
is the default) save
may or may not write your changes to the DB straight away. When you call saveAndFlush
you are enforcing the synchronization of your model state with the DB.
If you use flush mode AUTO and you are using your application to first save and then select the data again, you will not see a difference in bahvior between save()
and saveAndFlush()
because the select triggers a flush first. See the documention.
Try using
<META HTTP-EQUIV="Pragma" CONTENT="no-cache">
<META HTTP-EQUIV="Expires" CONTENT="-1">
I keep coming back to these questions trying to figure out where exactly the data I'm interested in is buried in what is truly a monolithic ErrorRecord structure. Almost all answers give piecemeal instructions on how to pull certain bits of data.
But I've found it immensely helpful to dump the entire object with ConvertTo-Json
so that I can visually see LITERALLY EVERYTHING in a comprehensible layout.
try {
Invoke-WebRequest...
}
catch {
Write-Host ($_ | ConvertTo-Json)
}
Use ConvertTo-Json
's -Depth
parameter to expand deeper values, but use extreme caution going past the default depth of 2
:P
https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.utility/convertto-json
To grant a permission:
grant select on schema_name.sequence_name to user_or_role_name;
To check which permissions have been granted
select * from all_tab_privs where TABLE_NAME = 'sequence_name'
Take a look at the Activator.CreateInstance method.
Use jps to list running java processes. The command returns the process id along with the main class. You can use kill command to kill the process with the returned id or use following one liner script.
kill $(jps | grep <MainClass> | awk '{print $1}')
MainClass is a class in your running java program which contains the main method.
I'm sure there's a better way to achieve this and I would like to read about it, but a workaround I can think of is this:
rm
'ed directory to the original machine (ssh, ftp, whatever).pip uninstall
the package (should work again then).But, yes, I'd also love to hear about a decent solution for this situation.
I had exact issue and here is how I fixed:
I found out that I had first installed Keras then installed pandas in my virtual env. When you install keras, pandas is shipped with it. Do not need to pip install pandas.
I tested this hypothesis by creating new virtual environment and wala... pandas appeared without me installing it. Thus I came to the conclusion that pandas is automatically installed when you pip install keras.
I found that deleting the designer.cs file, excluding the resx file from the project and then re-including it often fixed this kind of issue, following a namespace refactoring (as per CFinck's answer)
You have to replace the Flutter icon files with images of your own. This site will help you turn your png into launcher icons of various sizes:
https://romannurik.github.io/AndroidAssetStudio/icons-launcher.html
Try this
import os
import subprocess
DIR = os.path.join('C:\\', 'Users', 'Sergey', 'Desktop', 'helloword.py')
subprocess.call(['python', DIR])
If you are seeing(3 messages are hidden by filters. Show all messages.) then click on show all message link in Chrome dev tool console.
Because if this option enabled by mistake the console.log("")
message will show but this will in in hidden state.
I see this is a fairly old question, but this looks like one of those times when something's been written without knowledge of a language feature. The collections
library exists to fulfill these purposes.
from collections import Counter
letter_counter = Counter()
for letter in 'The quick brown fox jumps over the lazy dog':
letter_counter[letter] += 1
>>> letter_counter
Counter({' ': 8, 'o': 4, 'e': 3, 'h': 2, 'r': 2, 'u': 2, 'T': 1, 'a': 1, 'c': 1, 'b': 1, 'd': 1, 'g': 1, 'f': 1, 'i': 1, 'k': 1, 'j': 1, 'm': 1, 'l': 1, 'n': 1, 'q': 1, 'p': 1, 's': 1, 't': 1, 'w': 1, 'v': 1, 'y': 1, 'x': 1, 'z': 1})
In this example the spaces are being counted, obviously, but whether or not you want those filtered is up to you.
As for the dict.get(a_key, default_value)
, there have been several answers to this particular question -- this method returns the value of the key, or the default_value you supply. The first argument is the key you're looking for, the second argument is the default for when that key is not present.
InverseProperty
in EF Core makes the solution easy and clean.
So the desired solution would be:
public class Team
{
[Key]
public int TeamId { get; set;}
public string Name { get; set; }
[InverseProperty(nameof(Match.HomeTeam))]
public ICollection<Match> HomeMatches{ get; set; }
[InverseProperty(nameof(Match.GuestTeam))]
public ICollection<Match> AwayMatches{ get; set; }
}
public class Match
{
[Key]
public int MatchId { get; set; }
[ForeignKey(nameof(HomeTeam)), Column(Order = 0)]
public int HomeTeamId { get; set; }
[ForeignKey(nameof(GuestTeam)), Column(Order = 1)]
public int GuestTeamId { get; set; }
public float HomePoints { get; set; }
public float GuestPoints { get; set; }
public DateTime Date { get; set; }
public Team HomeTeam { get; set; }
public Team GuestTeam { get; set; }
}
You've mentioned that they each have their own machines, but if they need to log onto a co-workers machine, and then use the file, saving it through "C:\Users\Public\Desktop\" will make it available to different usernames.
Public Sub SaveToDesktop()
ThisWorkbook.SaveAs Filename:="C:\Users\Public\Desktop\" & ThisWorkbook.Name & "_copy", _
FileFormat:=xlOpenXMLWorkbookMacroEnabled
End Sub
I'm not sure whether this would be a requirement, but may help!
You could try using a nice little function that will return the value if it exists or an empty string if not. This is what I use:
function arrayValueForKey($arrayName, $key) {
if (isset($GLOBALS[$arrayName]) && isset($GLOBALS[$arrayName][$key])) {
return $GLOBALS[$variable][$key];
} else {
return '';
}
}
Then you can use it like this:
echo ' Values: ' . arrayValueForKey('output', 'admin_link')
. arrayValueForKey('output', 'update_frequency');
And it won't throw up any errors!
Hope this helps!
To find whether no. is prime or not C++:
#include<iostream>
#include<cmath>
using namespace std;
int main(){
int n, counter=0;
cout <<"Enter a number to check whether it is prime or not \n";
cin>>n;
for(int i=2; i<=n-1;i++) {
if (n%i==0) {
cout<<n<<" is NOT a prime number \n";
break;
}
counter++;
}
//cout<<"Value n is "<<n<<endl;
//cout << "number of times counter run is "<<counter << endl;
if (counter == n-2)
cout << n<< " is prime \n";
return 0;
}
You can try something like this.
<button class="button" ng-disabled="(!data.var1 && !data.var2) ? false : true">
</button>
Its working fine for me.
Efficient can mean throughput or latency.
For throughout, see the answer by Anders Cedronius, it’s a good one.
For lower latency, I would recommend this code:
uint32_t reverseBits( uint32_t x )
{
#if defined(__arm__) || defined(__aarch64__)
__asm__( "rbit %0, %1" : "=r" ( x ) : "r" ( x ) );
return x;
#endif
// Flip pairwise
x = ( ( x & 0x55555555 ) << 1 ) | ( ( x & 0xAAAAAAAA ) >> 1 );
// Flip pairs
x = ( ( x & 0x33333333 ) << 2 ) | ( ( x & 0xCCCCCCCC ) >> 2 );
// Flip nibbles
x = ( ( x & 0x0F0F0F0F ) << 4 ) | ( ( x & 0xF0F0F0F0 ) >> 4 );
// Flip bytes. CPUs have an instruction for that, pretty fast one.
#ifdef _MSC_VER
return _byteswap_ulong( x );
#elif defined(__INTEL_COMPILER)
return (uint32_t)_bswap( (int)x );
#else
// Assuming gcc or clang
return __builtin_bswap32( x );
#endif
}
Compilers output: https://godbolt.org/z/5ehd89
I got the same trouble, in mobile device with Microsoft's Edge browser. I can solve the problem with: aria-haspopup="true"
. It need to add to the div and the :hover
, :active
, :focus
for the other mobile browsers.
Example html:
<div class="left_bar" aria-haspopup="true">
CSS:
.left_bar:hover, .left_bar:focus, .left_bar:active{
left: 0%;
}
How about without using predefined function like min
or max
?
$arr = [4,5,6,7,8,2,9,1];
$val = $arr[0];
$n = count($arr);
for($i=1;$i<$n;$i++) {
if($val<$arr[$i]) {
$val = $val;
} else {
$val = $arr[$i];
}
}
print($val);
?>
I found this piece of information and got it to work correctly. The data given to me was in string format so I needed to parse the string using kendo.parseDate
before formatting it with kendo.toString
.
columns: [
{
field: "FirstName",
title: "FIRST NAME"
},
{
field: "LastName",
title: "LAST NAME"
},
{
field: "DateOfBirth",
title: "DATE OF BIRTH",
template: "#= kendo.toString(kendo.parseDate(DateOfBirth, 'yyyy-MM-dd'), 'MM/dd/yyyy') #"
},
...
Check this out: http://code.google.com/p/resting/. I could use resting to consume HTTPS REST services.
If you have access to Excel, look in the "Statistical Functions" section of the Function Reference within Help. For straight-line best-fit, you need SLOPE and INTERCEPT and the equations are right there.
Oh, hang on, they're also defined online here: http://office.microsoft.com/en-us/excel/HP052092641033.aspx for SLOPE, and there's a link to INTERCEPT. OF course, that assumes MS don't move the page, in which case try Googling for something like "SLOPE INTERCEPT EQUATION Excel site:microsoft.com" - the link given turned out third just now.
public DataTable ImportExceltoDatatable(string filepath)
{
// string sqlquery= "Select * From [SheetName$] Where YourCondition";
string sqlquery = "Select * From [SheetName$] Where Id='ID_007'";
DataSet ds = new DataSet();
string constring = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filepath + ";Extended Properties=\"Excel 12.0;HDR=YES;\"";
OleDbConnection con = new OleDbConnection(constring + "");
OleDbDataAdapter da = new OleDbDataAdapter(sqlquery, con);
da.Fill(ds);
DataTable dt = ds.Tables[0];
return dt;
}
In case you also want to include your real name in the from-field, you can use the following format
mailx -r "[email protected] (My Name)" -s "My Subject" ...
If you happen to have non-ASCII characters in you name, like My AEÆoeøaaå (Æ= C3 86, ø= C3 B8, å= C3 A5), you have to encode them like this:
mailx -r "[email protected] (My =?utf-8?Q?AE=C3=86oe=C3=B8aa=C3=A5?=)" -s "My Subject" ...
Hope this can save someone an hour of hard work/research!
I had a similar problem and I solved it by setting a static IP on the Android device.
When you add the network on Android, first you enter the SSID and password, then underneath you can open advanced options and set a static IP.
You can use <LinearLayout>
to group elements horizontaly. Also you should use style to set margins, background and other properties. This will allow you not to repeat code for every label you use.
Here is an example:
<LinearLayout
style="@style/FormItem"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
style="@style/FormLabel"
android:layout_width="wrap_content"
android:layout_height="@dimen/default_element_height"
android:text="@string/name_label"
/>
<EditText
style="@style/FormText.Editable"
android:id="@+id/cardholderName"
android:layout_width="wrap_content"
android:layout_height="@dimen/default_element_height"
android:layout_weight="1"
android:gravity="right|center_vertical"
android:hint="@string/card_name_hint"
android:imeOptions="actionNext"
android:singleLine="true"
/>
</LinearLayout>
Also you can create a custom view base on the layout above. Have you looked at Creating custom view ?
The USAGE-privilege in mysql simply means that there are no privileges for the user 'phpadmin'@'localhost' defined on global level *.*
. Additionally the same user has ALL-privilege on database phpmyadmin phpadmin.*
.
So if you want to remove all the privileges and start totally from scratch do the following:
Revoke all privileges on database level:
REVOKE ALL PRIVILEGES ON phpmyadmin.* FROM 'phpmyadmin'@'localhost';
Drop the user 'phpmyadmin'@'localhost'
DROP USER 'phpmyadmin'@'localhost';
Above procedure will entirely remove the user from your instance, this means you can recreate him from scratch.
To give you a bit background on what described above: as soon as you create a user the mysql.user
table will be populated. If you look on a record in it, you will see the user and all privileges set to 'N'
. If you do a show grants for 'phpmyadmin'@'localhost';
you will see, the allready familliar, output above. Simply translated to "no privileges on global level for the user". Now your grant ALL
to this user on database level, this will be stored in the table mysql.db
. If you do a SELECT * FROM mysql.db WHERE db = 'nameofdb';
you will see a 'Y'
on every priv.
Above described shows the scenario you have on your db at the present. So having a user that only has USAGE
privilege means, that this user can connect, but besides of SHOW GLOBAL VARIABLES; SHOW GLOBAL STATUS;
he has no other privileges.
Dan Abramov wrote an article on this topic:
And the gist of it is that it's helpful to have a habit of passing it to avoid this scenario, that honestly, I don't see it unlikely to happen:
// Inside React
class Component {
constructor(props) {
this.props = props;
// ...
}
}
// Inside your code
class Button extends React.Component {
constructor(props) {
super(); // We forgot to pass props
console.log(props); // ? {}
console.log(this.props); // undefined
}
// ...
}
You could do this with the following list comprehension:
[mylist[i:] + [newelement] + mylist[:i] for i in xrange(len(mylist),-1,-1)]
With your example:
>>> mylist=['A','B']
>>> newelement='X'
>>> [mylist[i:] + [newelement] + mylist[:i] for i in xrange(len(mylist),-1,-1)]
[['X', 'A', 'B'], ['B', 'X', 'A'], ['A', 'B', 'X']]
It sounds like you're trying to link with your resulting object file with gcc
instead of g++
:
Note that programs using C++ object files must always be linked with g++, in order to supply the appropriate C++ libraries. Attempting to link a C++ object file with the C compiler gcc will cause "undefined reference" errors for C++ standard library functions:
$ g++ -Wall -c hello.cc
$ gcc hello.o (should use g++)
hello.o: In function `main':
hello.o(.text+0x1b): undefined reference to `std::cout'
.....
hello.o(.eh_frame+0x11):
undefined reference to `__gxx_personality_v0'
Source: An Introduction to GCC - for the GNU compilers gcc and g++
This is working for me in .NET 2005 -
' * if the mouse button is down, do not run the select all.
If MouseButtons = Windows.Forms.MouseButtons.Left Then
Exit Sub
End If
' * OTHERWISE INVOKE THE SELECT ALL AS DISCUSSED.
You can use the following regex to replace non-ASCII characters
str = str.replace(/[^A-Za-z 0-9 \.,\?""!@#\$%\^&\*\(\)-_=\+;:<>\/\\\|\}\{\[\]`~]*/g, '')
However, note that spaces, colons and commas are all valid ASCII, so the result will be
> str
"INFO] :, , , (Higashikurume)"
You can simply write like this
import java.net.InetAddress;
import java.net.UnknownHostException;
public class Main {
private static final String HOST = "localhost";
public static void main(String[] args) throws UnknownHostException {
boolean isConnected = !HOST.equals(InetAddress.getLocalHost().getHostAddress().toString());
if (isConnected) System.out.println("Connected");
else System.out.println("Not connected");
}
}
Sometimes this
can refer to another scope and refer to something else, for example suppose you want to call a constructor method inside a DOM event, in this case this
will refer to the DOM element not the created object.
HTML
<button id="button">Alert Name</button>
JS
var Person = function(name) {
this.name = name;
var that = this;
this.sayHi = function() {
alert(that.name);
};
};
var ahmad = new Person('Ahmad');
var element = document.getElementById('button');
element.addEventListener('click', ahmad.sayHi); // => Ahmad
The solution above will assing this
to that
then we can and access the name property inside the sayHi
method from that
, so this can be called without issues inside the DOM call.
Another solution is to assign an empty that
object and add properties and methods to it and then return it. But with this solution you lost the prototype
of the constructor.
var Person = function(name) {
var that = {};
that.name = name;
that.sayHi = function() {
alert(that.name);
};
return that;
};
This has already been answered in detail on SO. Check out this thread, It should answer all your questions: Executing a subprocess fails
I've tried it myself with this code:
batchtest.py
from subprocess import Popen
p = Popen("batch.bat", cwd=r"C:\Path\to\batchfolder")
stdout, stderr = p.communicate()
batch.bat
echo Hello World!
pause
I've got the batchtest.py example from the aforementioned thread.
if you run the other type of build(for example sign apk or etc), you must select app type of build then run the projects.
please seen the following image. for run this project we must select "app" in run configuration popup.
You can't just return an array of objects because there's nothing telling React how to render that. You'll need to return an array of components or elements like:
render: function() {
return (
<span>
// This will go through all the elements in arrayFromJson and
// render each one as a <SomeComponent /> with data from the object
{this.state.arrayFromJson.map(function(object) {
return (
<SomeComponent key={object.id} data={object} />
);
})}
</span>
);
}
If you are looking to block the execution of code with call to sleep
, then no, there is no method for that in JavaScript
.
JavaScript
does have setTimeout
method. setTimeout
will let you defer execution of a function for x milliseconds.
setTimeout(myFunction, 3000);
// if you have defined a function named myFunction
// it will run after 3 seconds (3000 milliseconds)
Remember, this is completely different from how sleep
method, if it existed, would behave.
function test1()
{
// let's say JavaScript did have a sleep function..
// sleep for 3 seconds
sleep(3000);
alert('hi');
}
If you run the above function, you will have to wait for 3 seconds (sleep
method call is blocking) before you see the alert 'hi'. Unfortunately, there is no sleep
function like that in JavaScript
.
function test2()
{
// defer the execution of anonymous function for
// 3 seconds and go to next line of code.
setTimeout(function(){
alert('hello');
}, 3000);
alert('hi');
}
If you run test2, you will see 'hi' right away (setTimeout
is non blocking) and after 3 seconds you will see the alert 'hello'.
If you go to TextFX
menu and go to TextFX Edit
, you will see a menu item Reindent C++ Code
.
That will also format C# code.
Go to
C:\drive\xampp(where xampp installed)
simply find php.ini file then in the file search
post_max_size=XXM
upload_max_size=XXM
Change with this code
post_max_size=100M
upload_max_filesize=100M
Don't forget to restart the xampp
Use :
<EditText
..
android:drawableStart="@drawable/icon" />
This is by design. You can cast null
to any reference type. Otherwise you wouldn't be able to assign it to reference variables.
declare
x number;
begin
x := myfunc(myargs);
end;
Alternatively:
select myfunc(myargs) from dual;
Don't know if it's quicker, but, you could save a line of code with your method:
From
$array = array('lastname', 'email', 'phone');
$comma_separated = implode("','", $array);
$comma_separated = "'".$comma_separated."'";
To:
$array = array('lastname', 'email', 'phone');
$comma_separated = "'".implode("','", $array)."'";
Use Viewbag is wrong for sending list to view.You should using Viewmodel in this case. like this:
[HttpGet]
public ActionResult NewAgahi() // New Advertising
{
//--------------------------------------------------------
// ??????? ?? ?????? ???? ????? ??? ??? ?? ???
Country_Repository blCountry = new Country_Repository();
Ostan_Repository blOstan = new Ostan_Repository();
City_Repository blCity = new City_Repository();
Mahale_Repository blMahale = new Mahale_Repository();
Agahi_Repository blAgahi = new Agahi_Repository();
var vm = new NewAgahi_ViewModel();
vm.Country = blCountry.Select();
vm.Ostan = blOstan.Select();
vm.City = blCity.Select();
vm.Mahale = blMahale.Select();
//vm.Agahi = blAgahi.Select();
return View(vm);
}
[ValidateAntiForgeryToken]
[HttpPost]
public ActionResult NewAgahi(Agahi agahi)
{
if (ModelState.IsValid == true)
{
Agahi_Repository blAgahi = new Agahi_Repository();
agahi.Date = DateTime.Now.Date;
agahi.UserId = 1048;
agahi.GroupId = 1;
if (blAgahi.Add(agahi) == true)
{
//Success
return JavaScript("alert('??? ??')");
}
else
{
//Fail
return JavaScript("alert('????? ?? ???')");
}
using ProjectName.Models.DomainModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace ProjectName.ViewModels
{
public class NewAgahi_ViewModel // ???? ??????? ???? ?? ??? ??? ?? ?? ???
{
public IEnumerable<Country> Country { get; set; }
public IEnumerable<Ostan> Ostan { get; set; }
public IEnumerable<City> City { get; set; }
public IQueryable<Mahale> Mahale { get; set; }
public ProjectName.Models.DomainModels.Agahi Agahi { get; set; }
}
}
@model ProjectName.ViewModels.NewAgahi_ViewModel
..... .....
@Html.DropDownList("CountryList", new SelectList(Model.Country, "id", "Name"))
@Html.DropDownList("CityList", new SelectList(Model.City, "id", "Name"))
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using ProjectName.Models.DomainModels;
namespace ProjectName.Models.Repositories
{
public class Country_Repository : IDisposable
{
private MyWebSiteDBEntities db = null;
public Country_Repository()
{
db = new DomainModels.MyWebSiteDBEntities();
}
public Boolean Add(Country entity, bool autoSave = true)
{
try
{
db.Country.Add(entity);
if (autoSave)
return Convert.ToBoolean(db.SaveChanges());
//return "True";
else
return false;
}
catch (Exception e)
{
string ss = e.Message;
//return e.Message;
return false;
}
}
public bool Update(Country entity, bool autoSave = true)
{
try
{
db.Country.Attach(entity);
db.Entry(entity).State = System.Data.Entity.EntityState.Modified;
if (autoSave)
return Convert.ToBoolean(db.SaveChanges());
else
return false;
}
catch (Exception e)
{
string ss = e.Message; // ?? ?????????? ??? ???? ?????? ?????? ??? ?? ?????
return false;
}
}
public bool Delete(Country entity, bool autoSave = true)
{
try
{
db.Entry(entity).State = System.Data.Entity.EntityState.Deleted;
if (autoSave)
return Convert.ToBoolean(db.SaveChanges());
else
return false;
}
catch
{
return false;
}
}
public bool Delete(int id, bool autoSave = true)
{
try
{
var entity = db.Country.Find(id);
db.Entry(entity).State = System.Data.Entity.EntityState.Deleted;
if (autoSave)
return Convert.ToBoolean(db.SaveChanges());
else
return false;
}
catch
{
return false;
}
}
public Country Find(int id)
{
try
{
return db.Country.Find(id);
}
catch
{
return null;
}
}
public IQueryable<Country> Where(System.Linq.Expressions.Expression<Func<Country, bool>> predicate)
{
try
{
return db.Country.Where(predicate);
}
catch
{
return null;
}
}
public IQueryable<Country> Select()
{
try
{
return db.Country.AsQueryable();
}
catch
{
return null;
}
}
public IQueryable<TResult> Select<TResult>(System.Linq.Expressions.Expression<Func<Country, TResult>> selector)
{
try
{
return db.Country.Select(selector);
}
catch
{
return null;
}
}
public int GetLastIdentity()
{
try
{
if (db.Country.Any())
return db.Country.OrderByDescending(p => p.id).First().id;
else
return 0;
}
catch
{
return -1;
}
}
public int Save()
{
try
{
return db.SaveChanges();
}
catch
{
return -1;
}
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
if (this.db != null)
{
this.db.Dispose();
this.db = null;
}
}
}
~Country_Repository()
{
Dispose(false);
}
}
}
in my case just
const myReducers = combineReducers({
user: UserReducer
});
const store: any = createStore(
myReducers,
applyMiddleware(thunk)
);
shallow(<Login />, { context: { store } });
You could use a List<T>
and when T
is a value type it will be allocated in contiguous memory which would not be the case if T
is a reference type.
Example:
List<int> integers = new List<int>();
integers.Add(1);
integers.Add(4);
integers.Add(7);
int someElement = integers[1];
For future reference:
yyyy => 4 digit year
MM => 2 digit month (you must type MM in ALL CAPS)
dd => 2 digit "day of the month"
HH => 2-digit "hour in day" (0 to 23)
mm => 2-digit minute (you must type mm in lowercase)
ss => 2-digit seconds
SSS => milliseconds
So "yyyy-MM-dd HH:mm:ss" returns "2018-01-05 09:49:32"
But "MMM dd, yyyy hh:mm a" returns "Jan 05, 2018 09:49 am"
The so-called examples at https://docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html show only output. They do not tell you what formats to use!
The first thing you should do with date variables is confirm that R reads it as a Date. To do this, for the variable (i.e. vector/column) called Date, in the data frame called EPL2011_12, input
class(EPL2011_12$Date)
The output should read [1] "Date". If it doesn't, you should format it as a date by inputting
EPL2011_12$Date <- as.Date(EPL2011_12$Date, "%d-%m-%y")
Note that the hyphens in the date format ("%d-%m-%y") above can also be slashes ("%d/%m/%y"). Confirm that R sees it as a Date. If it doesn't, try a different formatting command
EPL2011_12$Date <- format(EPL2011_12$Date, format="%d/%m/%y")
Once you have it in Date format, you can use the subset
command, or you can use brackets
WhateverYouWant <- EPL2011_12[EPL2011_12$Date > as.Date("2014-12-15"),]
One way is to just leave merged feature branches open (and inactive):
$ hg up default
$ hg merge feature-x
$ hg ci -m merge
$ hg heads
(1 head)
$ hg branches
default 43:...
feature-x 41:...
(2 branches)
$ hg branches -a
default 43:...
(1 branch)
Another way is to close a feature branch before merging using an extra commit:
$ hg up feature-x
$ hg ci -m 'Closed branch feature-x' --close-branch
$ hg up default
$ hg merge feature-x
$ hg ci -m merge
$ hg heads
(1 head)
$ hg branches
default 43:...
(1 branch)
The first one is simpler, but it leaves an open branch. The second one leaves no open heads/branches, but it requires one more auxiliary commit. One may combine the last actual commit to the feature branch with this extra commit using --close-branch
, but one should know in advance which commit will be the last one.
Update: Since Mercurial 1.5 you can close the branch at any time so it will not appear in both hg branches
and hg heads
anymore. The only thing that could possibly annoy you is that technically the revision graph will still have one more revision without childen.
Update 2: Since Mercurial 1.8 bookmarks have become a core feature of Mercurial. Bookmarks are more convenient for branching than named branches. See also this question:
Just use for x in f: ...
, this gives you line after line, is much shorter and readable (partly because it automatically stops when the file ends) and also saves you the rstrip
call because the trailing newline is already stipped.
The error is caused by the exit condition, which can never be true: Even if the file is exhausted, readline
will return an empty string, not None
. Also note that you could still run into trouble with empty lines, e.g. at the end of the file. Adding if line.strip() == "": continue
makes the code ignore blank lines, which is propably a good thing anyway.
Lucas's answer about core dumps is good. In my .cshrc I have:
alias core 'ls -lt core; echo where | gdb -core=core -silent; echo "\n"'
to display the backtrace by entering 'core'. And the date stamp, to ensure I am looking at the right file :(.
Added: If there is a stack corruption bug, then the backtrace applied to the core dump is often garbage. In this case, running the program within gdb can give better results, as per the accepted answer (assuming the fault is easily reproducible). And also beware of multiple processes dumping core simultaneously; some OS's add the PID to the name of the core file.
I would also suggest deselecting an item after it has been clicked and use the MouseDoubleClick event
private void listBox_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
try {
//Do your stuff here
listBox.SelectedItem = null;
listBox.SelectedIndex = -1;
} catch (Exception ex) {
System.Diagnostics.Debug.WriteLine(ex.Message);
}
}
FILE *fp;
char* str = "string";
int x = 10;
fp=fopen("test.txt", "w");
if(fp == NULL)
exit(-1);
fprintf(fp, "This is a string which is written to a file\n");
fprintf(fp, "The string has %d words and keyword %s\n", x, str);
fclose(fp);
=(A1/86400)+25569
...and the format of the cell should be date.
#####
you probably don't have a real Unix time. Check your
timestamps in https://www.epochconverter.com/. Try to divide your input by 10, 100, 1000 or 10000**A1
with the cell containing the timestamp ;-pUnix system represent a point in time as a number. Specifically the number of seconds* since a zero-time called the Unix epoch which is 1/1/1970 00:00 UTC/GMT
. This number of seconds is called "Unix timestamp" or "Unix time" or "POSIX time" or just "timestamp" and sometimes (confusingly) "Unix epoch".
In the case of Excel they chose a different zero-time and step (because who wouldn't like variety in technical details?). So Excel counts days
since 24 hours before 1/1/0000 UTC/GMT
. So 25569 corresponds to 1/1/1970 00:00 UTC/GMT
and 25570 to 2/1/1970 00:00
.
Now please note that we have 86400 seconds per day (24 hours x60 minutes each x60 seconds) and you can understand what this formula does: A1/86400
converts seconds to days and +25569
adjusts for the offset between what is time-zero for Unix and what is time-zero for Excel.
By the way DATE(1970,1,1)
will helpfully return 25569 for you in case you forget all this so a more "self-documenting" way to write our formula is:
=A1/(24*60*60) + DATE(1970,1,1)
P.S.: All these were already present in other answers and comments just not laid out as I like them and I don't feel it's OK to edit the hell out of another answer.
*: that's almost correct because you should not count leap seconds
**: E.g. in the case of this question the number was number of milliseconds since the the Unix epoch.
Found one from Flickr that doesn't need registration / api.
Basic sample, Fiddle: http://jsfiddle.net/Braulio/vDr36/
More info: post
Pasted sample
HTML
<div id="images">
</div>
Javascript
// Querystring, "tags" search term, comma delimited
var query = "http://www.flickr.com/services/feeds/photos_public.gne?tags=soccer&format=json&jsoncallback=?";
// This function is called once the call is satisfied
// http://stackoverflow.com/questions/13854250/understanding-cross-domain-xhr-and-xml-data
var mycallback = function (data) {
// Start putting together the HTML string
var htmlString = "";
// Now start cycling through our array of Flickr photo details
$.each(data.items, function(i,item){
// I only want the ickle square thumbnails
var sourceSquare = (item.media.m).replace("_m.jpg", "_s.jpg");
// Here's where we piece together the HTML
htmlString += '<li><a href="' + item.link + '" target="_blank">';
htmlString += '<img title="' + item.title + '" src="' + sourceSquare;
htmlString += '" alt="'; htmlString += item.title + '" />';
htmlString += '</a></li>';
});
// Pop our HTML in the #images DIV
$('#images').html(htmlString);
};
// Ajax call to retrieve data
$.getJSON(query, mycallback);
Another very interesting is Star Wars Rest API:
Oracle Client version 11 cannot connect to 8i databases. You will need a client in version 10 at most.
I have a similar problem, and I remove the RuntimeFrameworkVersion, and the problem was fixed.
Try to remove 1.1.1 or
Is using System.Threading.Timer
mandatory?
If not, System.Timers.Timer
has handy Start()
and Stop()
methods (and an AutoReset
property you can set to false, so that the Stop()
is not needed and you simply call Start()
after executing).
If you want your database file
See the DDMS > File explore
find your db file from your package name
then Click on pull a file from device (Rooted device only)
I would say that one should omit the __init__.py
only if one wants to have the implicit namespace package. If you don't know what it means, you probably don't want it and therefore you should continue to use the __init__.py
even in Python 3.
I do tend to use static classes for factories. For example, this is the logging class in one of my projects:
public static class Log
{
private static readonly ILoggerFactory _loggerFactory =
IoC.Resolve<ILoggerFactory>();
public static ILogger For<T>(T instance)
{
return For(typeof(T));
}
public static ILogger For(Type type)
{
return _loggerFactory.GetLoggerFor(type);
}
}
You might have even noticed that IoC is called with a static accessor. Most of the time for me, if you can call static methods on a class, that's all you can do so I mark the class as static for extra clarity.
You can add the src
folder to build path by:
src
folder.And you are done. Hope this help.
EDIT: Refer to the Eclipse documentation
This would select 4 in your case
SELECT ID FROM TableA WHERE ID NOT IN (SELECT ID FROM TableB)
This would delete them
DELETE FROM TableA WHERE ID NOT IN (SELECT ID FROM TableB)
If the command should work with both tabs and spaces as the delimiter I would use awk
:
awk '{print $100,$101,$102,$103,$104,$105}' myfile > outfile
As long as you just need to specify 5 fields it is imo ok to just type them, for longer ranges you can use a for
loop:
awk '{for(i=100;i<=105;i++)print $i}' myfile > outfile
If you want to use cut
, you need to use the -f
option:
cut -f100-105 myfile > outfile
If the field delimiter is different from TAB
you need to specify it using -d
:
cut -d' ' -f100-105 myfile > outfile
Check the man page for more info on the cut command.
Finally it works for me.
private VideoView videoView;
videoView = (VideoView) findViewById(R.id.videoView);
Uri video = Uri.parse("http://www.servername.com/projects/projectname/videos/1361439400.mp4");
videoView.setVideoURI(video);
videoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mp) {
mp.setLooping(true);
videoView.start();
}
});
Hope this would help others.
How do I finish the merge after resolving my merge conflicts?
With Git 2.12 (Q1 2017), you will have the more natural command:
git merge --continue
See commit c7d227d (15 Dec 2016) by Jeff King (peff
).
See commit 042e290, commit c261a87, commit 367ff69 (14 Dec 2016) by Chris Packham (cpackham
).
(Merged by Junio C Hamano -- gitster
-- in commit 05f6e1b, 27 Dec 2016)
See 2.12 release notes.
merge
: add '--continue
' option as a synonym for 'git commit
'Teach '
git merge
' the--continue
option which allows 'continuing' a merge by completing it.
The traditional way of completing a merge after resolving conflicts is to use 'git commit
'.
Now with commands like 'git rebase
' and 'git cherry-pick
' having a '--continue
' option adding such an option to 'git merge
' presents a consistent UI.
As far as I have understood your question, you have listed two issues.
PROBLEM 1:
You are not able to execute the Python scripts by double clicking the Python file in Windows.
REASON:
The script runs too fast to be seen by the human eye.
SOLUTION:
Add input()
in the bottom of your script and then try executing it with double click. Now the cmd will be open until you close it.
EXAMPLE:
print("Hello World")
input()
PROBLEM 2:
./
issue
SOLUTION:
Use Tab to autocomplete the filenames rather than manually typing the filename with ./
autocomplete automatically fills all this for you.
USAGE:
CD into the directory in which .py
files are present and then assume the filename is test.py
then type python te
and then press Tab, it will be automatically converted to python ./test.py
.
list
has a count
method:
>>> [True,True,False].count(True)
2
This is actually more efficient than sum
, as well as being more explicit about the intent, so there's no reason to use sum
:
In [1]: import random
In [2]: x = [random.choice([True, False]) for i in range(100)]
In [3]: %timeit x.count(True)
970 ns ± 41.1 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
In [4]: %timeit sum(x)
1.72 µs ± 161 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)
You can use sudo ip link delete
to remove the interface.
You can not check for version support via command line. Best option would be checking OpenSSL changelog.
Openssl versions till 1.0.0h supports SSLv2, SSLv3 and TLSv1.0. From Openssl 1.0.1 onward support for TLSv1.1 and TLSv1.2 is added.
To convert an integer to a float in Python you can use the following:
float_version = float(int_version)
The reason you are getting 0
is that Python 2 returns an integer if the mathematical operation (here a division) is between two integers. So while the division of 144 by 314 is 0.45~~~, Python converts this to integer and returns just the 0
by eliminating all numbers after the decimal point.
Alternatively you can convert one of the numbers in any operation to a float since an operation between a float and an integer would return a float. In your case you could write float(144)/314
or 144/float(314)
. Another, less generic code, is to say 144.0/314
. Here 144.0
is a float so it’s the same thing.
Single quotes won't interpolate anything, but double quotes will. For example: variables, backticks, certain \
escapes, etc.
Example:
$ echo "$(echo "upg")"
upg
$ echo '$(echo "upg")'
$(echo "upg")
The Bash manual has this to say:
Enclosing characters in single quotes (
'
) preserves the literal value of each character within the quotes. A single quote may not occur between single quotes, even when preceded by a backslash.Enclosing characters in double quotes (
"
) preserves the literal value of all characters within the quotes, with the exception of$
,`
,\
, and, when history expansion is enabled,!
. The characters$
and`
retain their special meaning within double quotes (see Shell Expansions). The backslash retains its special meaning only when followed by one of the following characters:$
,`
,"
,\
, or newline. Within double quotes, backslashes that are followed by one of these characters are removed. Backslashes preceding characters without a special meaning are left unmodified. A double quote may be quoted within double quotes by preceding it with a backslash. If enabled, history expansion will be performed unless an!
appearing in double quotes is escaped using a backslash. The backslash preceding the!
is not removed.The special parameters
*
and@
have special meaning when in double quotes (see Shell Parameter Expansion).
In case you need to split a string from your JSON, the string has the \n special character replaced with \\n.
Split string by newline:
Result.split('\n');
Split string received in JSON, where special character \n was replaced with \\n during JSON.stringify(in javascript) or json.json_encode(in PHP). So, if you have your string in a AJAX response, it was processed for transportation. and if it is not decoded, it will sill have the \n replaced with \\n** and you need to use:
Result.split('\\n');
Note that the debugger tools from your browser might not show this aspect as you was expecting, but you can see that splitting by \\n resulted in 2 entries as I need in my case:
The characteristics of sets in Python are that the data items in a set are unordered and duplicates are not allowed. If you try to add a data item to a set that already contains the data item, Python simply ignores it.
>>> l = ['a', 'a', 'bb', 'b', 'c', 'c', '10', '10', '8','8', 10, 10, 6, 10, 11.2, 11.2, 11, 11]
>>> distinct_l = set(l)
>>> print(distinct_l)
set(['a', '10', 'c', 'b', 6, 'bb', 10, 11, 11.2, '8'])
Late joining this conversation to shed light on a mildly interesting factoid for web-facing, analytics-aware websites. Passing the mic over to Michael Papworth:
https://github.com/michaelpapworth/jQuery.navigate
"When using website analytics, window.location is not sufficient due to the referer not being passed on the request. The plugin resolves this and allows for both aliased and parametrised URLs."
If one examines the code what it does is this:
var methods = {
'goTo': function (url) {
// instead of using window.location to navigate away
// we use an ephimeral link to click on and thus ensure
// the referer (current url) is always passed on to the request
$('<a></a>').attr("href", url)[0].click();
},
...
};
Neato!
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;
}
}
I ran into this same issue trying to install the dbf package in Python 2.7. The problem is that the enum package wasn't added to Python until version 3.4.
It has been backported to versions 3.3, 3.2, 3.1, 2.7, 2.6, 2.5, and 2.4, you just need the package from here: https://pypi.python.org/pypi/enum34#downloads
I am storing the date as 'DD-MON-YYYY format (10-Jun-2016) and below query works for me to search records between 2 dates.
select date, substr(date,8,11) || '-' || substr(date,4,4) || substr(date, 1,2), case
substr(date, 4,3)
when 'Jan' then strftime('%s', replace(substr(date,8,11) || '-' || substr(date,4,4) || substr(date, 1,2), 'Jan' , '01'))
when 'Feb' then strftime('%s', replace(substr(date,8,11) || '-' || substr(date,4,4) || substr(date, 1,2), 'Feb' , '02'))
when 'Mar' then strftime('%s', replace(substr(date,8,11) || '-' || substr(date,4,4) || substr(date, 1,2), 'Mar' , '03'))
when 'Apr' then strftime('%s', replace(substr(date,8,11) || '-' || substr(date,4,4) || substr(date, 1,2), 'Apr' , '04'))
when 'May' then strftime('%s', replace(substr(date,8,11) || '-' || substr(date,4,4) || substr(date, 1,2), 'May' , '05'))
when 'Jun' then strftime('%s', replace(substr(date,8,11) || '-' || substr(date,4,4) || substr(date, 1,2), 'Jun' , '06'))
when 'Jul' then strftime('%s', replace(substr(date,8,11) || '-' || substr(date,4,4) || substr(date, 1,2), 'Jul' , '07'))
when 'Aug' then strftime('%s', replace(substr(date,8,11) || '-' || substr(date,4,4) || substr(date, 1,2), 'Aug' , '08'))
when 'Sep' then strftime('%s', replace(substr(date,8,11) || '-' || substr(date,4,4) || substr(date, 1,2), 'Sep' , '09'))
when 'Oct' then strftime('%s', replace(substr(date,8,11) || '-' || substr(date,4,4) || substr(date, 1,2), 'Oct' , '10'))
when 'Nov' then strftime('%s', replace(substr(date,8,11) || '-' || substr(date,4,4) || substr(date, 1,2), 'Nov' , '11'))
when 'Dec' then strftime('%s', replace(substr(date,8,11) || '-' || substr(date,4,4) || substr(date, 1,2), 'Dec' , '12'))
else '0' end as srcDate from payment where srcDate >= strftime('%s', '2016-07-06') and srcDate <= strftime('%s', '2016-09-06');
Use text-center
instead of center-block
.
Or use center-block
on the span element (I did the column wider so you can see the alignment better):
<div class="row">
<div class="col-xs-10" style="background-color:#123;">
<span class="center-block" style="width:100px; background-color:#ccc;">abc</span>
</div>
</div>
I used the approach with the custom converter:
public static class MapEntryConverter implements Converter {
public boolean canConvert(Class clazz) {
return AbstractMap.class.isAssignableFrom(clazz);
}
public void marshal(Object value, HierarchicalStreamWriter writer, MarshallingContext context) {
AbstractMap map = (AbstractMap) value;
for (Object obj : map.entrySet()) {
Entry entry = (Entry) obj;
writer.startNode(entry.getKey().toString());
context.convertAnother(entry.getValue());
writer.endNode();
}
}
public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {
// dunno, read manual and do it yourself ;)
}
}
But i changed the the serialization of the maps value to delegate to the MarshallingContext. This should improve the solution to work for composite map values and nested maps as well.
That would be the Enter key.
There are several ways:
Write-Host
: Write directly to the console, not included in function/cmdlet output. Allows foreground and background colour to be set.
Write-Debug
: Write directly to the console, if $DebugPreference
set to Continue or Stop.
Write-Verbose
: Write directly to the console, if $VerbosePreference
set to Continue or Stop.
The latter is intended for extra optional information, Write-Debug
for debugging (so would seem to fit in this case).
Additional: In PSH2 (at least) scripts using cmdlet binding will automatically get the -Verbose
and -Debug
switch parameters, locally enabling Write-Verbose
and Write-Debug
(i.e. overriding the preference variables) as compiled cmdlets and providers do.
server {
index index.html index.htm;
server_name test.example.com;
location / {
root /web/test.example.com/www;
}
location /static {
root /web/test.example.com;
}
}
Character sets will help out a ton here. You want to create a matching set for the characters that you want to validate:
\w
, which is the same as [A-Za-z0-9_]
in JavaScript (other languages can differ).-
and spaces, which can be combined into a matching set such as [\w\- ]
. However, you may want to consider using \s
instead of just the space character (\s
also matches tabs, and other forms of whitespace)
-
as \-
so that the regex engine doesn't confuse it with a character range like A-Z
^
and $
The full regex you're probably looking for is:
/^[\w\-\s]+$/
(Note that the +
indicates that there must be at least one character for it to match; use a *
instead, if a zero-length string is also ok)
Finally, http://www.regular-expressions.info/ is an awesome reference
Bonus Points: This regex does not match non-ASCII alphas. Unfortunately, the regex engine in most browsers does not support named character sets, but there are some libraries to help with that.
For languages/platforms that do support named character sets, you can use /^[\p{Letter}\d\_\-\s]+$/
You may use str.isdigit()
and str.isalpha()
to check whether given string is positive integer and alphabet respectively.
Sample Results:
# For alphabet
>>> 'A'.isdigit()
False
>>> 'A'.isalpha()
True
# For digit
>>> '1'.isdigit()
True
>>> '1'.isalpha()
False
str.isdigit()
returns False
if the string is a negative number or a float number. For example:
# returns `False` for float
>>> '123.3'.isdigit()
False
# returns `False` for negative number
>>> '-123'.isdigit()
False
If you want to also check for the negative integers and float
, then you may write a custom function to check for it as:
def is_number(n):
try:
float(n) # Type-casting the string to `float`.
# If string is not a valid `float`,
# it'll raise `ValueError` exception
except ValueError:
return False
return True
Sample Run:
>>> is_number('123') # positive integer number
True
>>> is_number('123.4') # positive float number
True
>>> is_number('-123') # negative integer number
True
>>> is_number('-123.4') # negative `float` number
True
>>> is_number('abc') # `False` for "some random" string
False
The above functions will return True
for the "NAN" (Not a number) string because for Python it is valid float representing it is not a number. For example:
>>> is_number('NaN')
True
In order to check whether the number is "NaN", you may use math.isnan()
as:
>>> import math
>>> nan_num = float('nan')
>>> math.isnan(nan_num)
True
Or if you don't want to import additional library to check this, then you may simply check it via comparing it with itself using ==
. Python returns False
when nan
float is compared with itself. For example:
# `nan_num` variable is taken from above example
>>> nan_num == nan_num
False
Hence, above function is_number
can be updated to return False
for "NaN"
as:
def is_number(n):
is_number = True
try:
num = float(n)
# check for "nan" floats
is_number = num == num # or use `math.isnan(num)`
except ValueError:
is_number = False
return is_number
Sample Run:
>>> is_number('Nan') # not a number "Nan" string
False
>>> is_number('nan') # not a number string "nan" with all lower cased
False
>>> is_number('123') # positive integer
True
>>> is_number('-123') # negative integer
True
>>> is_number('-1.12') # negative `float`
True
>>> is_number('abc') # "some random" string
False
The above function will still return you False
for the complex numbers. If you want your is_number
function to treat complex numbers as valid number, then you need to type cast your passed string to complex()
instead of float()
. Then your is_number
function will look like:
def is_number(n):
is_number = True
try:
# v type-casting the number here as `complex`, instead of `float`
num = complex(n)
is_number = num == num
except ValueError:
is_number = False
return is_number
Sample Run:
>>> is_number('1+2j') # Valid
True # : complex number
>>> is_number('1+ 2j') # Invalid
False # : string with space in complex number represetantion
# is treated as invalid complex number
>>> is_number('123') # Valid
True # : positive integer
>>> is_number('-123') # Valid
True # : negative integer
>>> is_number('abc') # Invalid
False # : some random string, not a valid number
>>> is_number('nan') # Invalid
False # : not a number "nan" string
PS: Each operation for each check depending on the type of number comes with additional overhead. Choose the version of is_number
function which fits your requirement.
As David pointed out, I would go with KB in most cases.
php_value post_max_size 2K
Note: my form is simple, just a few text boxes, not long text.
(PHP shorthand for KB is K, as outlined here.)
This is expected.
Refer to Javadocs for split
.
Splits this string around matches of the given regular expression.
This method works as if by invoking the two-argument split(java.lang.String,int) method with the given expression and a limit argument of zero. Trailing empty strings are therefore not included in the resulting array.
The easy way, try uname()
If that does not work, use gethostname() then gethostbyname() and finally gethostbyaddr()
The h_name of hostent{} should be your FQDN
You can also use a jQuery plugin to do that
If you'd like to gather more information on the error and if the error occurs in the first few iterations, I suggest you run the experiment in CPU-only mode (no GPUs). The error message will be much more specific.
Source: https://github.com/tensorflow/tensor2tensor/issues/574
You could require the type to be a reference type :
private static T ReadData<T>(XmlReader reader, string value) where T : class
{
reader.MoveToAttribute(value);
object readData = reader.ReadContentAsObject();
return (T)readData;
}
And then do another that uses value types and TryParse...
private static T ReadDataV<T>(XmlReader reader, string value) where T : struct
{
reader.MoveToAttribute(value);
object readData = reader.ReadContentAsObject();
int outInt;
if(int.TryParse(readData, out outInt))
return outInt
//...
}
You can use this function to get the absolute value:
+(NSNumber *)absoluteValue:(NSNumber *)input {
return [NSNumber numberWithDouble:fabs([input doubleValue])];
}
Using ADO (AnonJr already explained) and utilizing SQL is possibly the best option for fetching data from a closed workbook without opening that in conventional way. Please watch this VIDEO.
OTHERWISE, possibly GetObject(<filename with path>)
is the most CONCISE way. Worksheets remain invisible, however will appear in project explorer window in VBE just like any other workbook opened in conventional ways.
Dim wb As Workbook
Set wb = GetObject("C:\MyData.xlsx") 'Worksheets will remain invisible, no new window appears in the screen
' your codes here
wb.Close SaveChanges:=False
If you want to read a particular sheet, need not even define a Workbook variable
Dim sh As Worksheet
Set sh = GetObject("C:\MyData.xlsx").Worksheets("MySheet")
' your codes here
sh.Parent.Close SaveChanges:=False 'Closes the associated workbook
I've always used it on the command line and not as a library, but HTMLDOC gives me excellent results, and it handles at least some CSS (I couldn't easily see how much).
Here's a sample command line
htmldoc --webpage -t pdf --size letter --fontsize 10pt index.html > index.pdf
Using Nested Scroll View instead of Scroll View solved my problem
<LinearLayout> <!--Main Layout -->
<android.support.v4.widget.NestedScrollView>
<LinearLayout > <!--Nested Scoll View enclosing Layout -->`
<View > <!-- upper content -->
<RecyclerView >
</LinearLayout >
</android.support.v4.widget.NestedScrollView>
</LinearLayout>
If you just need sampling without replacement:
>>> import random
>>> random.sample(range(1, 100), 3)
[77, 52, 45]
random.sample takes a population and a sample size k
and returns k
random members of the population.
If you have to control for the case where k
is larger than len(population)
, you need to be prepared to catch a ValueError
:
>>> try:
... random.sample(range(1, 2), 3)
... except ValueError:
... print('Sample size exceeded population size.')
...
Sample size exceeded population size
You can use the function subset
inside ggplot2
. Try this
library(ggplot2)
data("iris")
iris$Sepal.Length[5:10] <- NA # create some NAs for this example
ggplot(data=subset(iris, !is.na(Sepal.Length)), aes(x=Sepal.Length)) +
geom_bar(stat="bin")
David Heffernan explained the issue in his answer, and I wrote the improved code. See below.
We can write a useful variadic function to concatenate any number of strings:
#include <stdlib.h> // calloc
#include <stdarg.h> // va_*
#include <string.h> // strlen, strcpy
char* concat(int count, ...)
{
va_list ap;
int i;
// Find required length to store merged string
int len = 1; // room for NULL
va_start(ap, count);
for(i=0 ; i<count ; i++)
len += strlen(va_arg(ap, char*));
va_end(ap);
// Allocate memory to concat strings
char *merged = calloc(sizeof(char),len);
int null_pos = 0;
// Actually concatenate strings
va_start(ap, count);
for(i=0 ; i<count ; i++)
{
char *s = va_arg(ap, char*);
strcpy(merged+null_pos, s);
null_pos += strlen(s);
}
va_end(ap);
return merged;
}
#include <stdio.h> // printf
void println(char *line)
{
printf("%s\n", line);
}
int main(int argc, char* argv[])
{
char *str;
str = concat(0); println(str); free(str);
str = concat(1,"a"); println(str); free(str);
str = concat(2,"a","b"); println(str); free(str);
str = concat(3,"a","b","c"); println(str); free(str);
return 0;
}
Output:
// Empty line
a
ab
abc
Note that you should free up the allocated memory when it becomes unneeded to avoid memory leaks:
char *str = concat(2,"a","b");
println(str);
free(str);
Since Java 15, you can use a non-static string method called String::formatted(Object... args)
Example:
String foo = "foo";
String bar = "bar";
String str = "First %s, then %s".formatted(foo, bar);
Output:
"First foo, then bar"
The answer will vary slightly depending on whether the application or applet is using AWT or Swing.
(Basically, classes that start with J
such as JApplet
and JFrame
are Swing, and Applet
and Frame
are AWT.)
In either case, the basic steps would be:
Image
object.Component
you want to draw the background in.Step 1. Loading the image can be either by using the Toolkit
class or by the ImageIO
class.
The Toolkit.createImage
method can be used to load an Image
from a location specified in a String
:
Image img = Toolkit.getDefaultToolkit().createImage("background.jpg");
Similarly, ImageIO
can be used:
Image img = ImageIO.read(new File("background.jpg");
Step 2. The painting method for the Component
that should get the background will need to be overridden and paint the Image
onto the component.
For AWT, the method to override is the paint
method, and use the drawImage
method of the Graphics
object that is handed into the paint
method:
public void paint(Graphics g)
{
// Draw the previously loaded image to Component.
g.drawImage(img, 0, 0, null);
// Draw sprites, and other things.
// ....
}
For Swing, the method to override is the paintComponent
method of the JComponent
, and draw the Image
as with what was done in AWT.
public void paintComponent(Graphics g)
{
// Draw the previously loaded image to Component.
g.drawImage(img, 0, 0, null);
// Draw sprites, and other things.
// ....
}
Simple Component Example
Here's a Panel
which loads an image file when instantiated, and draws that image on itself:
class BackgroundPanel extends Panel
{
// The Image to store the background image in.
Image img;
public BackgroundPanel()
{
// Loads the background image and stores in img object.
img = Toolkit.getDefaultToolkit().createImage("background.jpg");
}
public void paint(Graphics g)
{
// Draws the img to the BackgroundPanel.
g.drawImage(img, 0, 0, null);
}
}
For more information on painting:
A clean way of deep copying objects having nested objects inside is by using lodash's cloneDeep method.
For Angular, you can do it like this:
Install lodash with yarn add lodash
or npm install lodash
.
In your component, import cloneDeep
and use it:
import * as cloneDeep from 'lodash/cloneDeep';
...
clonedObject = cloneDeep(originalObject);
It's only 18kb added to your build, well worth for the benefits.
I've also written an article here, if you need more insight on why using lodash's cloneDeep.
I had this problem in Visual Studio 2013. I reinstalled NuGet Package Manager:
https://marketplace.visualstudio.com/items?itemName=NuGetTeam.NuGetPackageManagerforVisualStudio2013
If anyone need it for scripting purposes, here is a one-line solution.
In POSIX shell, with PCRE enabled grep
, try:
DOCKER_ROOT_DIR="$(docker info 2>&1 | grep -oP '(?<=^Docker Root Dir: ).*')"
In PowerShell:
$DOCKER_ROOT_DIR="$(docker info 2>&1 | foreach {if($_ -match "Docker Root Dir"){$_.TrimStart("Docker Root Dir: ")}})"
Note, when on Windows 10 (as of 10.0.18999.1
), in default configurations, it returns:
C:\ProgramData\Docker
in "Windows containers" mode/var/lib/docker
, in "Linux containers" modeI've seen a couple cases where this error occurs:
!=
in a where
clause with a list of multiple or
valuessuch as:
where columnName !=('A'||'B')
This can be resolved by using
where columnName not in ('A','B')
if()
function:select if(col1,col1,col2);
in order to select the value in col1
if it exists and otherwise show the value in col2
...this throws the error; it can be resolved by using:
select if(col1!='',col1,col2);
this also works:
$url = "http://www.some-url";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$xmlresponse = curl_exec($ch);
$xml=simplexml_load_string($xmlresponse);
then I just run a forloop to grab the stuff from the nodes.
like this:`
for($i = 0; $i < 20; $i++) {
$title = $xml->channel->item[$i]->title;
$link = $xml->channel->item[$i]->link;
$desc = $xml->channel->item[$i]->description;
$html .="<div><h3>$title</h3>$link<br />$desc</div><hr>";
}
echo $html;
***note that your node names will differ, obviously..and your HTML might be structured differently...also your loop might be set to higher or lower amount of results.
Check out http://www.odata.org/
It defines the MERGE method, so in your case it would be something like this:
MERGE /customer/123
<customer>
<status>DISABLED</status>
</customer>
Only the status
property is updated and the other values are preserved.
var res = exitDictionary
.Select(p => p.Value).Cast<Dictionary<string, object>>()
.SelectMany(d => d)
.Where(p => p.Key == "fieldname1")
.Select(p => p.Value).Cast<List<Dictionary<string,string>>>()
.SelectMany(l => l)
.SelectMany(d=> d)
.Where(p => p.Key == "valueTitle")
.Select(p => p.Value)
.ToList();
This also works, and easy to understand.
Found the answer here: http://www.digitallycreated.net/Blog/59/locally-publishing-a-vs2010-asp.net-web-application-using-msbuild
Visual Studio 2010 has great new Web Application Project publishing features that allow you to easy publish your web app project with a click of a button. Behind the scenes the Web.config transformation and package building is done by a massive MSBuild script that’s imported into your project file (found at: C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v10.0\Web\Microsoft.Web.Publishing.targets). Unfortunately, the script is hugely complicated, messy and undocumented (other then some oft-badly spelled and mostly useless comments in the file). A big flowchart of that file and some documentation about how to hook into it would be nice, but seems to be sadly lacking (or at least I can’t find it).
Unfortunately, this means performing publishing via the command line is much more opaque than it needs to be. I was surprised by the lack of documentation in this area, because these days many shops use a continuous integration server and some even do automated deployment (which the VS2010 publishing features could help a lot with), so I would have thought that enabling this (easily!) would be have been a fairly main requirement for the feature.
Anyway, after digging through the Microsoft.Web.Publishing.targets file for hours and banging my head against the trial and error wall, I’ve managed to figure out how Visual Studio seems to perform its magic one click “Publish to File System” and “Build Deployment Package” features. I’ll be getting into a bit of MSBuild scripting, so if you’re not familiar with MSBuild I suggest you check out this crash course MSDN page.
Publish to File System
The VS2010 Publish To File System Dialog Publish to File System took me a while to nut out because I expected some sensible use of MSBuild to be occurring. Instead, VS2010 does something quite weird: it calls on MSBuild to perform a sort of half-deploy that prepares the web app’s files in your project’s obj folder, then it seems to do a manual copy of those files (ie. outside of MSBuild) into your target publish folder. This is really whack behaviour because MSBuild is designed to copy files around (and other build-related things), so it’d make sense if the whole process was just one MSBuild target that VS2010 called on, not a target then a manual copy.
This means that doing this via MSBuild on the command-line isn’t as simple as invoking your project file with a particular target and setting some properties. You’ll need to do what VS2010 ought to have done: create a target yourself that performs the half-deploy then copies the results to the target folder. To edit your project file, right click on the project in VS2010 and click Unload Project, then right click again and click Edit. Scroll down until you find the Import element that imports the web application targets (Microsoft.WebApplication.targets; this file itself imports the Microsoft.Web.Publishing.targets file mentioned earlier). Underneath this line we’ll add our new target, called PublishToFileSystem:
<Target Name="PublishToFileSystem"
DependsOnTargets="PipelinePreDeployCopyAllFilesToOneFolder">
<Error Condition="'$(PublishDestination)'==''"
Text="The PublishDestination property must be set to the intended publishing destination." />
<MakeDir Condition="!Exists($(PublishDestination))"
Directories="$(PublishDestination)" />
<ItemGroup>
<PublishFiles Include="$(_PackageTempDir)\**\*.*" />
</ItemGroup>
<Copy SourceFiles="@(PublishFiles)"
DestinationFiles="@(PublishFiles->'$(PublishDestination)\%(RecursiveDir)%(Filename)%(Extension)')"
SkipUnchangedFiles="True" />
</Target>
This target depends on the PipelinePreDeployCopyAllFilesToOneFolder target, which is what VS2010 calls before it does its manual copy. Some digging around in Microsoft.Web.Publishing.targets shows that calling this target causes the project files to be placed into the directory specified by the property _PackageTempDir.
The first task we call in our target is the Error task, upon which we’ve placed a condition that ensures that the task only happens if the PublishDestination property hasn’t been set. This will catch you and error out the build in case you’ve forgotten to specify the PublishDestination property. We then call the MakeDir task to create that PublishDestination directory if it doesn’t already exist.
We then define an Item called PublishFiles that represents all the files found under the _PackageTempDir folder. The Copy task is then called which copies all those files to the Publish Destination folder. The DestinationFiles attribute on the Copy element is a bit complex; it performs a transform of the items and converts their paths to new paths rooted at the PublishDestination folder (check out Well-Known Item Metadata to see what those %()s mean).
To call this target from the command-line we can now simply perform this command (obviously changing the project file name and properties to suit you):
msbuild Website.csproj "/p:Platform=AnyCPU;Configuration=Release;PublishDestination=F:\Temp\Publish" /t:PublishToFileSystem
In case you're using a UITabBarController
:
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
self.tabBarController?.navigationItem.hidesBackButton = true
}
Try Color
class method:
public static int parseColor (String colorString)
From Android documentation:
Supported formats are: #RRGGBB #AARRGGBB 'red', 'blue', 'green', 'black', 'white', 'gray', 'cyan', 'magenta', 'yellow', 'lightgray', 'darkgray'
AndroidX: String.toColorInt()
To "call" means to make a reference in your code to a function that is written elsewhere. This function "call" can be made to the standard Python library (stuff that comes installed with Python), third-party libraries (stuff other people wrote that you want to use), or your own code (stuff you wrote). For example:
#!/usr/env python
import os
def foo():
return "hello world"
print os.getlogin()
print foo()
I created a function called "foo" and called it later on with that print statement. I imported the standard "os" Python library then I called the "getlogin" function within that library.
I'm assuming the table has a primary key. First try to run a unlock tables command to see if that fixes it.
If all else fails you can alter the table to create a new primary key column with auto-increment and that should hopefully fix it. Once you're done you should be able to remove the column without any issues.
As always you want to make a backup before altering tables around. :)
Note: MySQL workbench cannot work without a primary key if that's your issue. However if you have a many to many table you can set both columns as primary keys which will let you edit the data.
@using (Html.BeginForm()) {
<p>Do you like pizza?
@Html.DropDownListFor(x => x.likesPizza, new[] {
new SelectListItem() {Text = "Yes", Value = bool.TrueString},
new SelectListItem() {Text = "No", Value = bool.FalseString}
}, "Choose an option")
</p>
<input type = "submit" value = "Submit my answer" />
}
I think this answer is similar to Berat's, in that you put all the code for your DropDownList directly in the view. But I think this is an efficient way of creating a y/n (boolean) drop down list, so I wanted to share it.
Some notes for beginners:
Hope this helps someone,
Try:
-webkit-transition: all .2s linear, background-position 0;
This worked for me on something similar..
Extracting a specific folder (directory) within war file:
# unzip <war file> '<folder to extract/*>' -d <destination path>
unzip app##123.war 'some-dir/*' -d extracted/
You get ./extracted/some-dir/
as a result.
I stumbled upon the same need. And I read a lot on this so, here is my copper on the subject.
If you want your change detection on push, then you would have it when you change a value of an object inside right ? And you also would have it if somehow, you remove objects.
As already said, use of changeDetectionStrategy.onPush
Say you have this component you made, with changeDetectionStrategy.onPush:
<component [collection]="myCollection"></component>
Then you'd push an item and trigger the change detection :
myCollection.push(anItem);
refresh();
or you'd remove an item and trigger the change detection :
myCollection.splice(0,1);
refresh();
or you'd change an attrbibute value for an item and trigger the change detection :
myCollection[5].attribute = 'new value';
refresh();
Content of refresh :
refresh() : void {
this.myCollection = this.myCollection.slice();
}
The slice method returns the exact same Array, and the [ = ] sign make a new reference to it, triggering the change detection every time you need it. Easy and readable :)
Regards,
Well, why not just add them to your existing character class?
var pattern = /[a-zA-Z0-9&._-]/
If you need to check whether a string consists of nothing but those characters you have to anchor the expression as well:
var pattern = /^[a-zA-Z0-9&._-]+$/
The added ^
and $
match the beginning and end of the string respectively.
Testing for letters, numbers or underscore can be done with \w
which shortens your expression:
var pattern = /^[\w&.-]+$/
As mentioned in the comment from Nathan, if you're not using the results from .match()
(it returns an array with what has been matched), it's better to use RegExp.test()
which returns a simple boolean:
if (pattern.test(qry)) {
// qry is non-empty and only contains letters, numbers or special characters.
}
Update 2
In case I have misread the question, the below will check if all three separate conditions are met.
if (/[a-zA-Z]/.test(qry) && /[0-9]/.test(qry) && /[&._-]/.test(qry)) {
// qry contains at least one letter, one number and one special character
}
If you operate on a large dataset, it is very possible that arrays will be used. For me creating a few arrays from 500 000 rows and 30 columns worksheet caused this error. I solved it simply by using the line below to get rid of array which is no longer necessary to me, before creating another one:
Erase vArray
Also if only 2 columns out of 30 are used, it is a good idea to create two 1-column arrays instead of one with 30 columns. It doesn't affect speed, but there will be a difference in memory usage.
If you want a standard way without libraries: No. The whole concept of a directory is not included in the standard.
If you agree that some (portable) dependency on a near-standard lib is okay: Use Boost's filesystem library and ask for the initial_path().
IMHO that's as close as you can get, with good karma (Boost is a well-established high quality set of libraries)
There's a simpler way I found when running Linux Mint.
Any user within the vboxsf group has full access to any shared folders on each boot with no manual mounting or unmounting
I usually do the following in addition to the above just to have quick access
A useful shortcut from inside Sublime Text:
cmd-shift-P --> Browse Packages Now open user folder.
You can do it from adb using this command:
adb shell am start -a android.intent.action.DELETE -d package:<your app package>
-- To Create or Replace a Table we must first silently Drop a Table that may not exist
DECLARE
table_not_exist EXCEPTION;
PRAGMA EXCEPTION_INIT (table_not_exist , -00942);
BEGIN
EXECUTE IMMEDIATE('DROP TABLE <SCHEMA>.<TABLE NAME> CASCADE CONSTRAINTS');
EXCEPTION WHEN table_not_exist THEN NULL;
END;
/
Note: Your question is about escaping, not encoding. Escaping is using <, etc. to allow the parser to distinguish between "this is an XML command" and "this is some text". Encoding is the stuff you specify in the XML header (UTF-8, ISO-8859-1, etc).
First of all, like everyone else said, use an XML library. XML looks simple but the encoding+escaping stuff is dark voodoo (which you'll notice as soon as you encounter umlauts and Japanese and other weird stuff like "full width digits" (&#FF11; is 1)). Keeping XML human readable is a Sisyphus' task.
I suggest never to try to be clever about text encoding and escaping in XML. But don't let that stop you from trying; just remember when it bites you (and it will).
That said, if you use only UTF-8, to make things more readable you can consider this strategy:
<![CDATA[ ... ]]>
I'm using this in an SQL editor and it allows the developers to cut&paste SQL from a third party SQL tool into the XML without worrying about escaping. This works because the SQL can't contain umlauts in our case, so I'm safe.
Original Answer
Windows Grep does this really well.
Edit: Windows Grep is no longer being maintained or made available by the developer. An alternate download link is here: Windows Grep - alternate
Current Answer
Visual Studio Code has excellent search and replace capabilities across files. It is extremely fast, supports regex and live preview before replacement.
This is my UIImage extension and you can directly use changeTintColor function for an image.
extension UIImage {
func changeTintColor(color: UIColor) -> UIImage {
var newImage = self.withRenderingMode(.alwaysTemplate)
UIGraphicsBeginImageContextWithOptions(self.size, false, newImage.scale)
color.set()
newImage.draw(in: CGRect(x: 0.0, y: 0.0, width: self.size.width, height: self.size.height))
newImage = UIGraphicsGetImageFromCurrentImageContext()!
UIGraphicsEndImageContext()
return newImage
}
func changeColor(color: UIColor) -> UIImage {
let backgroundSize = self.size
UIGraphicsBeginImageContext(backgroundSize)
guard let context = UIGraphicsGetCurrentContext() else {
return self
}
var backgroundRect = CGRect()
backgroundRect.size = backgroundSize
backgroundRect.origin.x = 0
backgroundRect.origin.y = 0
var red: CGFloat = 0
var green: CGFloat = 0
var blue: CGFloat = 0
var alpha: CGFloat = 0
color.getRed(&red, green: &green, blue: &blue, alpha: &alpha)
context.setFillColor(red: red, green: green, blue: blue, alpha: alpha)
context.translateBy(x: 0, y: backgroundSize.height)
context.scaleBy(x: 1.0, y: -1.0)
context.clip(to: CGRect(x: 0.0, y: 0.0, width: self.size.width, height: self.size.height),
mask: self.cgImage!)
context.fill(backgroundRect)
var imageRect = CGRect()
imageRect.size = self.size
imageRect.origin.x = (backgroundSize.width - self.size.width) / 2
imageRect.origin.y = (backgroundSize.height - self.size.height) / 2
context.setBlendMode(.multiply)
context.draw(self.cgImage!, in: imageRect)
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage!
}
}
Example usage like this
let image = UIImage(named: "sample_image")
imageView.image = image.changeTintColor(color: UIColor.red)
And you can use change changeColor
function to change the image color
SELECT t1.* FROM table t1 JOIN table t2 ON t1.Id=t2.Id WHERE t1.C4=t2.C4;
Giving Accurate Result for me.
There's no mystery here, the linker is telling you that you haven't defined the missing symbols, and you haven't.
Similarity::Similarity()
or Similarity::~Similarity()
are just missing and you have defined the others incorrectly,
void Similarity::readData(Scanner& inStream){
}
not
void readData(Scanner& inStream){
}
etc. etc.
The second one is a function called readData, only the first is the readData method of the Similarity class.
To be clear about this, in Similarity.h
void readData(Scanner& inStream);
but in Similarity.cpp
void Similarity::readData(Scanner& inStream){
}
A ReentrantLock is unstructured, unlike synchronized
constructs -- i.e. you don't need to use a block structure for locking and can even hold a lock across methods. An example:
private ReentrantLock lock;
public void foo() {
...
lock.lock();
...
}
public void bar() {
...
lock.unlock();
...
}
Such flow is impossible to represent via a single monitor in a synchronized
construct.
Aside from that, ReentrantLock
supports lock polling and interruptible lock waits that support time-out. ReentrantLock
also has support for configurable fairness policy, allowing more flexible thread scheduling.
The constructor for this class accepts an optional fairness parameter. When set
true
, under contention, locks favor granting access to the longest-waiting thread. Otherwise this lock does not guarantee any particular access order. Programs using fair locks accessed by many threads may display lower overall throughput (i.e., are slower; often much slower) than those using the default setting, but have smaller variances in times to obtain locks and guarantee lack of starvation. Note however, that fairness of locks does not guarantee fairness of thread scheduling. Thus, one of many threads using a fair lock may obtain it multiple times in succession while other active threads are not progressing and not currently holding the lock. Also note that the untimedtryLock
method does not honor the fairness setting. It will succeed if the lock is available even if other threads are waiting.
ReentrantLock
may also be more scalable, performing much better under higher contention. You can read more about this here.
This claim has been contested, however; see the following comment:
In the reentrant lock test, a new lock is created each time, thus there is no exclusive locking and the resulting data is invalid. Also, the IBM link offers no source code for the underlying benchmark so its impossible to characterize whether the test was even conducted correctly.
When should you use ReentrantLock
s? According to that developerWorks article...
The answer is pretty simple -- use it when you actually need something it provides that
synchronized
doesn't, like timed lock waits, interruptible lock waits, non-block-structured locks, multiple condition variables, or lock polling.ReentrantLock
also has scalability benefits, and you should use it if you actually have a situation that exhibits high contention, but remember that the vast majority ofsynchronized
blocks hardly ever exhibit any contention, let alone high contention. I would advise developing with synchronization until synchronization has proven to be inadequate, rather than simply assuming "the performance will be better" if you useReentrantLock
. Remember, these are advanced tools for advanced users. (And truly advanced users tend to prefer the simplest tools they can find until they're convinced the simple tools are inadequate.) As always, make it right first, and then worry about whether or not you have to make it faster.
One final aspect that's gonna become more relevant in the near future has to do with Java 15 and Project Loom. In the (new) world of virtual threads, the underlying scheduler would be able to work much better with ReentrantLock
than it's able to do with synchronized
, that's true at least in the initial Java 15 release but may be optimized later.
In the current Loom implementation, a virtual thread can be pinned in two situations: when there is a native frame on the stack — when Java code calls into native code (JNI) that then calls back into Java — and when inside a
synchronized
block or method. In those cases, blocking the virtual thread will block the physical thread that carries it. Once the native call completes or the monitor released (thesynchronized
block/method is exited) the thread is unpinned.
If you have a common I/O operation guarded by a
synchronized
, replace the monitor with aReentrantLock
to let your application benefit fully from Loom’s scalability boost even before we fix pinning by monitors (or, better yet, use the higher-performanceStampedLock
if you can).
If the starting cell of the range and of the key is static, the solution can be very simple:
Range("A3").Select
Range(Selection, Selection.End(xlToRight)).Select
Range(Selection, Selection.End(xlDown)).Select
Selection.Sort key1:=Range("B3", Range("B3").End(xlDown)), _
order1:=xlAscending, Header:=xlNo
It's very simple, I think.
document.getElementById("whatever").classList.remove("className");
This did the trick for me. It captures all the stdout output from the subprocess(For python 3.8):
from subprocess import check_output, STDOUT
cmd = "Your Command goes here"
try:
cmd_stdout = check_output(cmd, stderr=STDOUT, shell=True).decode()
except Exception as e:
print(e.output.decode()) # print out the stdout messages up to the exception
print(e) # To print out the exception message
I ran into the same problem awhile back. My solution was to ditch iterating for the read
method, which will return immediately even if your subprocess isn't finished executing, etc.
If you're only getting these to manually pass into df.set_index()
, that's unnecessary. Just directly do df.set_index['your_col_name', drop=False]
, already.
It's very rare in pandas that you need to get an index as a Python list (unless you're doing something pretty funky, or else passing them back to NumPy), so if you're doing this a lot, it's a code smell that you're doing something wrong.
You can multiply numpy arrays by scalars and it just works.
>>> import numpy as np
>>> np.array([1, 2, 3]) * 2
array([2, 4, 6])
>>> np.array([[1, 2, 3], [4, 5, 6]]) * 2
array([[ 2, 4, 6],
[ 8, 10, 12]])
This is also a very fast and efficient operation. With your example:
>>> a_1 = np.array([1.0, 2.0, 3.0])
>>> a_2 = np.array([[1., 2.], [3., 4.]])
>>> b = 2.0
>>> a_1 * b
array([2., 4., 6.])
>>> a_2 * b
array([[2., 4.],
[6., 8.]])
--Adding the port can help when running IIS Express
Request.Url.Scheme + "://" + Request.Url.Host + ":" + Request.Url.Port
If you want to execute multiple commands in a for loop, you can save the result of find
with mapfile
(bash >= 4) as an variable and go through the array with ${dirlist[@]}
. It also works with directories containing spaces.
The find
command is based on the answer by Boldewyn. Further information about the find
command can be found there.
IFS=""
mapfile -t dirlist < <( find . -maxdepth 1 -mindepth 1 -type d -printf '%f\n' )
for dir in ${dirlist[@]}; do
echo ">${dir}<"
# more commands can go here ...
done
As you can see many answers above, But i would like to post a quick solution which works for sure in Anaconda3. I haven't chosen Visual Studio as it consumes lot of memory.
Please follow the below steps.
Step 1:
Install windows cmake.msi and configure environment variable
Step 2:
Create a conda environment, and install cmake using the below command.
pip install cmake
Step 3:
conda install -c conda-forge dlib
Note you can find few other dlib packages, but the above one will works perfectly with this procedure.
dlib will be successfully installed.
You can use Java's Scanner
class to parse words of a file and process them in your application, and then use a BufferedWriter
or FileWriter
to write back to the file, applying the changes.
I think there is a more efficient way of getting the iterator's position of the scanner at some point, in order to better implement editting. But since files are either open for reading, or writing, I'm not sure regarding that.
In any case, you can use libraries already available for parsing of XML files, which have all of this implemented already and will allow you to do what you want easily.