This tutorial worked for me, resolving my issues with /usr/local/bin permission issues and php-cli (which composer requires, and may aliased differently on shared hosting).
First run these commands to download and install composer:
cd ~
mkdir bin
mkdir bin/composer
curl -sS https://getcomposer.org/installer | php
mv composer.phar bin/composer
Determine the location of your php-cli (needed later on):
which php-cli
(If the above fails, use which php
)
It should return the path, such as /usr/bin/php-cli, /usr/php/54/usr/bin/php-cli, etc.
edit ~/.bashrc and make sure this line is at the top, adding it if it is not:
[ -z "$PS1" ] && return
and then add this alias to the bottom (using the php-cli path that you determined earlier):
alias composer="/usr/bin/php-cli ~/bin/composer/composer.phar"
Finish with these commands:
source ~/.bashrc
composer --version
Now Update word-wrap is replace by :
overflow-wrap:break-word;
Compatible old navigator and css 3 it's good alternative !
it's evolution of word-wrap ( since 2012... )
See more information : https://www.w3.org/TR/css-text-3/#overflow-wrap
See compatibility full : http://caniuse.com/#search=overflow-wrap
Why can't you just check it yourself and throw an exception if that is what you want.
try {
for (int i = 0; i < tab.length; i++) {
tab[i] = 1.0 / tab[i];
if (tab[i] == Double.POSITIVE_INFINITY ||
tab[i] == Double.NEGATIVE_INFINITY)
throw new ArithmeticException();
}
} catch (ArithmeticException ae) {
System.out.println("ArithmeticException occured!");
}
Follow these instructions,
First make sure you have notepad++ installed on your system and that it is the default programme to open .txt files.
Then Install gitpad on your system. Note the last I checked the download link was broken, so download it from here as explained.
Then while committing you should see your favorite text editor popping up.
I recommend to use memcpy() for copying data.
Also if we assign a buffer to another as array2 = array1
, both array have same memory and any change in the arrary1 deflects in array2 too. But we use memcpy, both buffer have different array. I recommend memcpy() because strcpy and related function do not copy NULL character.
You can disable them altogether by
(setq make-backup-files nil)
Yet another way to use Rscript for *Unix systems is Process Substitution.
Rscript <(zcat a.r)
# [1] "hello"
Which obviously does the same as the accepted answer, but this allows you to manipulate and run your file without saving it the power of the command line, e.g.:
Rscript <(sed s/hello/bye/ a.r)
# [1] "bye"
Similar to Rscript -e "Rcode"
it also allows to run without saving into a file. So it could be used in conjunction with scripts that generate R-code, e.g.:
Rscript <(echo "head(iris,2)")
# Sepal.Length Sepal.Width Petal.Length Petal.Width Species
# 1 5.1 3.5 1.4 0.2 setosa
# 2 4.9 3.0 1.4 0.2 setosa
Provided that your int column is nullable, you may write:
UPDATE dbo.TableName
SET TableName.IntColumn = NULL
WHERE <condition>
One nice surprise is for one who has git bash
on his windows: just plain old linux wc -l <filename>
will works for you there
After applying the steps mentioned by ajtrichards you can check if your amazon free tier instance is using swap using this command
cat /proc/meminfo
result:
ubuntu@ip-172-31-24-245:/$ cat /proc/meminfo
MemTotal: 604340 kB
MemFree: 8524 kB
Buffers: 3380 kB
Cached: 398316 kB
SwapCached: 0 kB
Active: 165476 kB
Inactive: 384556 kB
Active(anon): 141344 kB
Inactive(anon): 7248 kB
Active(file): 24132 kB
Inactive(file): 377308 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 1048572 kB
SwapFree: 1048572 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 148368 kB
Mapped: 14304 kB
Shmem: 256 kB
Slab: 26392 kB
SReclaimable: 18648 kB
SUnreclaim: 7744 kB
KernelStack: 736 kB
PageTables: 5060 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 1350740 kB
Committed_AS: 623908 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 7420 kB
VmallocChunk: 34359728748 kB
HardwareCorrupted: 0 kB
AnonHugePages: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 637952 kB
DirectMap2M: 0 kB
Use strcmp
.
This is in string.h
library, and is very popular. strcmp
return 0 if the strings are equal. See this for an better explanation of what strcmp
returns.
Basically, you have to do:
while (strcmp(check,input) != 0)
or
while (!strcmp(check,input))
or
while (strcmp(check,input))
You can check this, a tutorial on strcmp
.
In addition to Juliano's answer about behavior of "or": it's "fast"
>>> 1 or 5/0
1
So sometimes it's might be a useful shortcut for things like
object = getCachedVersion() or getFromDB()
I think AddRange is better implemented like so:
public void AddRange(IEnumerable<T> collection)
{
foreach (var i in collection) Items.Add(i);
OnCollectionChanged(
new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
}
It saves you a list copy. Also if you want to micro-optimise you could do adds for up to N items and if more than N items where added do a reset.
Override the onBackPressed method and do nothing if you meant to handle the back button on the device.
@Override
public void onBackPressed() {
if (shouldAllowBack()) {
super.onBackPressed();
} else {
doSomething();
}
}
I think you should consider Java installation procedure carefully. Following is the detailed process which covers almost all possible failures.
Installing Java with apt-get is easy. First, update the package index:
sudo apt-get update
Then, check if Java is not already installed:
java -version
If it returns "The program java can be found in the following packages", Java hasn't been installed yet, so execute the following command:
sudo apt-get install default-jre
You are fine till now as I assume.
This will install the Java Runtime Environment (JRE). If you instead need the Java Development Kit (JDK), which is usually needed to compile Java applications (for example Apache Ant, Apache Maven, Eclipse and IntelliJ IDEA execute the following command:
sudo apt-get install default-jdk
That is everything that is needed to install Java.
Installing OpenJDK 7:
To install OpenJDK 7, execute the following command:
sudo apt-get install openjdk-7-jre
This will install the Java Runtime Environment (JRE). If you instead need the Java Development Kit (JDK), execute the following command:
sudo apt-get install openjdk-7-jdk
Installing Oracle JDK:
The Oracle JDK is the official JDK; however, it is no longer provided by Oracle as a default installation for Ubuntu.
You can still install it using apt-get. To install any version, first execute the following commands:
sudo apt-get install python-software-properties
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
Then, depending on the version you want to install, execute one of the following commands:
Oracle JDK 7:
sudo apt-get install oracle-java7-installer
Oracle JDK 8:
sudo apt-get install oracle-java8-installer
There are two ways to achieve this:
final PageRequest page1 = new PageRequest(
0, 20, Direction.ASC, "lastName", "salary"
);
final PageRequest page2 = new PageRequest(
0, 20, new Sort(
new Order(Direction.ASC, "lastName"),
new Order(Direction.DESC, "salary")
)
);
dao.findAll(page1);
As you can see the second form is more flexible as it allows to define different direction for every property (lastName ASC, salary DESC
).
When This Error is Coming it is lack of the following
1)Setting the path to mongo db go to "C" Drive and the installation of Mongo db directory and then go to bin folder in the mongo and copy the path of it
c:/mongodb/server/3.2/bin/ and create a new environmental variable in system properties then name is path and value="c:/mongodb/server/3.2/bin/" here my version is 3.2
2)create a data directory for the data in C Drive c:/Data/twitter
3)start the server with **
c:/> mongod
check your port config if there is any error as the local port may be assigned to any other 4)start your Mongo database with
Mongo then your mongo db will start
then in your mongo database create a database
use DATABASE_NAME
for example:
use twitterdata
switched to db twitterdata
to check your current database
db
twitterdata
to get total databases
show dbs
Above solutions will work only if its a string. Input type date, gives you output in javascript date object in some cases like if you use angular or so. That's why some people are getting error like "TypeError: str.split is not a function". It's a date object, so you should use functions of Date object in javascript to manipulate it. Example here:
var date = $scope.dateObj ;
//dateObj is data bind to the ng-modal of input type dat.
console.log(date.getFullYear()); //this will give you full year eg : 1990
console.log(date.getDate()); //gives you the date from 1 to 31
console.log(date.getMonth() + 1); //getMonth will give month from 0 to 11
Check the following link for reference:
Input Dimension Clarified:
Not a direct answer, but I just realized the word Input Dimension could be confusing enough, so be wary:
It (the word dimension alone) can refer to:
a) The dimension of Input Data (or stream) such as # N of sensor axes to beam the time series signal, or RGB color channel (3): suggested word=> "InputStream Dimension"
b) The total number /length of Input Features (or Input layer) (28 x 28 = 784 for the MINST color image) or 3000 in the FFT transformed Spectrum Values, or
"Input Layer / Input Feature Dimension"
c) The dimensionality (# of dimension) of the input (typically 3D as expected in Keras LSTM) or (#RowofSamples, #of Senors, #of Values..) 3 is the answer.
"N Dimensionality of Input"
d) The SPECIFIC Input Shape (eg. (30,50,50,3) in this unwrapped input image data, or (30, 250, 3) if unwrapped Keras:
Keras has its input_dim refers to the Dimension of Input Layer / Number of Input Feature
model = Sequential()
model.add(Dense(32, input_dim=784)) #or 3 in the current posted example above
model.add(Activation('relu'))
In Keras LSTM, it refers to the total Time Steps
The term has been very confusing, is correct and we live in a very confusing world!!
I find one of the challenge in Machine Learning is to deal with different languages or dialects and terminologies (like if you have 5-8 highly different versions of English, then you need to very high proficiency to converse with different speakers). Probably this is the same in programming languages too.
You need to install the provisioning profile (drag and drop it into iTunes). Then drag and drop the .ipa. Ensure you device is set to sync apps, and try again.
Reading through the answers here the common named reasons are that one cannot iterate through the tree or that the tree does not assume the similar interface to other STL containers and one could not use STL algorithms with such tree structure.
Having that in mind I tried to design my own tree data structure which will provide STL-like interface and will be usable with existing STL algorthims as much as possible.
My idea was that the tree must be based on the existing STL containers and that it must not hide the container, so that it will be accessible to use with STL algorithms.
The other important feature the tree must provide is the traversing iterators.
Here is what I was able to come up with: https://github.com/cppfw/utki/blob/master/src/utki/tree.hpp
And here are the tests: https://github.com/cppfw/utki/blob/master/tests/tree/tests.cpp
You can't use the .bind()
method on function declarations, but you can on function expressions.
Function declaration:
function x() {
console.log(this)
}.bind('string')
x()
_x000D_
Function expression:
var x = function() {
console.log(this)
}.bind('string')
x()
_x000D_
select name
from DBname.sys.tables
where name like '%xxx%'
and is_ms_shipped = 0; -- << comment out if you really want to see them
try this following snippet, its working fine.
private void button1_Click(object sender, EventArgs e)
{
try
{
OpenFileDialog openfile1 = new OpenFileDialog();
if (openfile1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
this.textBox1.Text = openfile1.FileName;
}
{
string pathconn = "Provider = Microsoft.jet.OLEDB.4.0; Data source=" + textBox1.Text + ";Extended Properties=\"Excel 8.0;HDR= yes;\";";
OleDbConnection conn = new OleDbConnection(pathconn);
OleDbDataAdapter MyDataAdapter = new OleDbDataAdapter("Select * from [" + textBox2.Text + "$]", conn);
DataTable dt = new DataTable();
MyDataAdapter.Fill(dt);
dataGridView1.DataSource = dt;
}
}
catch { }
}
I got this error when calling this code: wks.Range[startCell, endCell]
where the startCell
Range and endCell
Range were pointing to different worksheet then the variable wks
.
No npm install required as ES6 Promises is native.
Node.js project -> Properties -> Typescript Build tab ECMAScript version = ECMAScript6
import http = require('http');
import fs = require('fs');
function findFolderAsync(directory : string): Promise<string> {
let p = new Promise<string>(function (resolve, reject) {
fs.stat(directory, function (err, stats) {
//Check if error defined and the error code is "not exists"
if (err && err.code === "ENOENT") {
reject("Directory does not exist");
}
else {
resolve("Directory exists");
}
});
});
return p;
}
findFolderAsync("myFolder").then(
function (msg : string) {
console.log("Promise resolved as " + msg);
},
function (msg : string) {
console.log("Promise rejected as " + msg);
}
);
After struggling a lot I finally solved the problem.
If you are prompted to download a .php
file instead of executing it, then here is the perfect solution: I assume that you have installed PHP5 already and still getting this error.
$ sudo su
$ a2enmod php5
This is it.
But If you are still getting the error :
Config file php5.conf not properly enabled: /etc/apache2/mods-enabled/php5.conf is a real file, not touching it
then do the following:
Turns out files shouldn't be stored in mods-enabled
, but should rather be stored in mods-available
. A symlink should then be created in mods-enabled pointing to the file stored in mods-available.
First remove the original:
$ mv /etc/apache2/mods-enabled/php5.conf /etc/apache2/mods-available/
Then create the symbolic link:
$ ln -s /etc/apache2/mods-available/php5.conf /etc/apache2/mods-enabled/php5.conf
I hope your problem is solved.
I've gotten this error when running a scalar function using a table value, but the Select statement in my scalar function RETURN clause was missing the "FROM table" portion. :facepalms:
This is always fascinating. I am not a cloud developer, but based on my research there is nothing significantly different than what many of us have been doing off and on for decades. The server is platform specific. If you want to write platform agnostic code for your server that is fine, but unnecessary based on whoever your cloud server provider is. I think the biggest difference I've seen so far is the concept of providing a large set of services for the front end client to process. the front end, I'm assuming is predominantly web or web app development. As most browsers can handle LAMP vs Microsoft stack well enough, then you are still back to whatever your flavor of the month is. The only difference I truly am seeing from what I did 20 years ago in a highly distributed network environment are higher level protocol (HTTP vs. TCP/UDP). Maybe I am wrong and would welcome the education, but then again I've been doing this a long time and still have not seen anything I would consider revolutionary or significantly different, though languages like Java, C#, Python, Ruby, etc are significantly simpler to program in which is a mixed bag as the bar is lowered for those are are not familiar with writing optimized code. PAAS and SAAS to me seem to be some of the keys in the new technology, but been doing some of this to off and on for 20 years :)
As I have not found any simple script so far, here's my two cents:
set ELEVATE_APP=Full command line without parameters for the app to run
set ELEVATE_PARMS=The actual parameters for the app
echo Set objShell = CreateObject("Shell.Application") >elevatedapp.vbs
echo Set objWshShell = WScript.CreateObject("WScript.Shell") >>elevatedapp.vbs
echo Set objWshProcessEnv = objWshShell.Environment("PROCESS") >>elevatedapp.vbs
echo objShell.ShellExecute "%ELEVATE_APP%", "%ELEVATE_PARMS%", "", "runas" >>elevatedapp.vbs
DEL elevatedapp.vbs
With Java 8 you can simply convert your list to a stream allowing you to write:
import java.util.List;
import java.util.stream.Collectors;
List<Sample> list = new ArrayList<Sample>();
List<Sample> result = list.stream()
.filter(a -> Objects.equals(a.value3, "three"))
.collect(Collectors.toList());
Note that
a -> Objects.equals(a.value3, "three")
is a lambda expressionresult
is a List
with a Sample
typelist.parallelStream()
instead of list.stream()
(read this)If you can't use Java 8, you can use Apache Commons library and write:
import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.collections.Predicate;
Collection result = CollectionUtils.select(list, new Predicate() {
public boolean evaluate(Object a) {
return Objects.equals(((Sample) a).value3, "three");
}
});
// If you need the results as a typed array:
Sample[] resultTyped = (Sample[]) result.toArray(new Sample[result.size()]);
Note that:
Object
to Sample
at each iterationSample[]
, you need extra code (as shown in my sample)Bonus: A nice blog article talking about how to find element in list.
Like most database problems, they should be solved by using the database.
Storing the data you want to group by and using indexes you can achieve an efficient and clear method to solve this problem.
$table->tinyInteger('activity_year')->unsigned()->index();
$table->smallInteger('activity_day_of_year')->unsigned()->index();
<?php
namespace App\Models;
use DB;
use Carbon\Carbon;
use Illuminate\Database\Eloquent\Model;
class PageView extends Model
{
public function scopePerDay($query){
$query->groupBy('activity_year');
$query->groupBy('activity_day_of_year');
return $query;
}
public function setUpdatedAt($value)
{
$date = Carbon::now();
$this->activity_year = (int)$date->format('y');
$this->activity_day_of_year = $date->dayOfYear;
return parent::setUpdatedAt($value);
}
$viewsPerDay = PageView::perDay()->get();
Active Directory does not store the group membership on user objects. It only stores the Member list on the group. The tools show the group membership on user objects by doing queries for it.
How about:
(&(objectClass=group)(member=cn=my,ou=full,dc=domain))
(You forgot the (& ) bit in your example in the question as well).
You must have a server-side script to handle your request, it can't be done using javascript.
To send raw data without URIencoding or escaping special characters to the php and save it as new txt
file you can send ajax request using post
method and FormData
like:
JS:
var data = new FormData();
data.append("data" , "the_text_you_want_to_save");
var xhr = (window.XMLHttpRequest) ? new XMLHttpRequest() : new activeXObject("Microsoft.XMLHTTP");
xhr.open( 'post', '/path/to/php', true );
xhr.send(data);
PHP:
if(!empty($_POST['data'])){
$data = $_POST['data'];
$fname = mktime() . ".txt";//generates random name
$file = fopen("upload/" .$fname, 'w');//creates new file
fwrite($file, $data);
fclose($file);
}
Edit:
As Florian mentioned below, the XHR fallback is not required since FormData
is not supported in older browsers (formdata browser compatibiltiy), so you can declare XHR variable as:
var xhr = new XMLHttpRequest();
Also please note that this works only for browsers that support FormData
such as IE +10.
SELECT DATEPART(QUARTER, @date)
This returns the quarter of the @date
, assuming @date
is a DATETIME
.
I'm using elasticsearch 7.5 and when I use
curl -XPOST 'localhost:9200/materials/_delete_by_query?conflicts=proceed&pretty' -d'
{
"query": {
"match_all": {}
}
}'
which will throw below error.
{
"error" : "Content-Type header [application/x-www-form-urlencoded] is not supported",
"status" : 406
}
I also need to add extra -H 'Content-Type: application/json'
header in the request to make it works.
curl -XPOST 'localhost:9200/materials/_delete_by_query?conflicts=proceed&pretty' -H 'Content-Type: application/json' -d'
{
"query": {
"match_all": {}
}
}'
{
"took" : 465,
"timed_out" : false,
"total" : 2275,
"deleted" : 2275,
"batches" : 3,
"version_conflicts" : 0,
"noops" : 0,
"retries" : {
"bulk" : 0,
"search" : 0
},
"throttled_millis" : 0,
"requests_per_second" : -1.0,
"throttled_until_millis" : 0,
"failures" : [ ]
}
class MyClass():
def __init__(self, a, b):
self.value1 = a
self.value2 = b
def __call__(self):
return [self.value1, self.value2]
Testing:
>>> x = MyClass('foo','bar')
>>> x()
['foo', 'bar']
It helps to trace the exception. For example you are writing some methods in your program and one of your methods causes bug. Then printstack will help you to identify which method causes the bug. Stack will help like this:
First your main method will be called and inserted to stack, then the second method will be called and inserted to the stack in LIFO order and if any error occurs somewhere inside any method then this stack will help to identify that method.
Outliers are quite similar to peaks, so a peak detector can be useful for identifying outliers. The method described here has quite good performance using z-scores. The animation part way down the page illustrates the method signaling on outliers, or peaks.
Peaks are not always the same as outliers, but they're similar frequently.
An example is shown here: This dataset is read from a sensor via serial communications. Occasional serial communication errors, sensor error or both lead to repeated, clearly erroneous data points. There is no statistical value in these point. They are arguably not outliers, they are errors. The z-score peak detector was able to signal on spurious data points and generated a clean resulting dataset:
To simplify,
for include
a typical example: between login and verify password
(login) --- << include >> ---> (verify password)
for the login process to success, "verify password" must be successful as well.
for extend
a typical example: between login and show error message (only happened sometimes)
(login) <--- << extend >> --- (show error message)
"show error message" only happens sometimes when the login process failed.
Note that WebMvcConfigurerAdapter is deprecated now (see WebMvcConfigurerAdapter). Due to Java 8 default methods, you only have to implement WebMvcConfigurer.
Try "`n"
with double quotes. (not single quotes '`n'
)
For a complete list of escaping characters see:
Help about_Escape_character
The code should be
$str += "`n"
I've just written paisa.js to do this, and it handles lakhs and crores correctly as well, can check it out. The core looks a bit like this:
const regulars = [
{
1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five', 6: 'six', 7: 'seven', 8: 'eight', 9: 'nine'
},
{
2: 'twenty', 3: 'thirty', 4: 'forty', 5: 'fifty', 6: 'sixty', 7: 'seventy', 8: 'eighty', 9: 'ninety'
}
]
const exceptions = {
10: 'ten',
11: 'eleven',
12: 'twelve',
13: 'thirteen',
14: 'fourteen',
15: 'fifteen',
16: 'sixteen',
17: 'seventeen',
18: 'eighteen',
19: 'nineteen'
}
const partInWords = (part) => {
if (parseInt(part) === 0) return
const digits = part.split('')
const words = []
if (digits.length === 3) {
words.push([regulars[0][digits.shift()], 'hundred'].join(' '))
}
if (exceptions[digits.join('')]) {
words.push(exceptions[digits.join('')])
} else {
words.push(digits.reverse().reduce((memo, el, i) => {
memo.unshift(regulars[i][el])
return memo
}, []).filter(w => w).join(' '))
}
return words.filter(w => w.trim().length).join(' and ')
}
Found this good site https://stefancosma.xyz/2018/10/01/how-to-use-tomcat-intellij-idea-community/ All credits to the author
this onclick={()=>{ f1(); f2() }}
helped me a lot if i want two different functions at the same time.
But now i want to create an audiorecorder with only one button. So if i click first i want to run the StartFunction f1()
and if i click again then i want to run
StopFunction f2()
.
How do you guys realize this?
Using a null reference as the first operand to instanceof
returns false
.
If speed is what you need and extra dependencies are not a problem, you maybe find numba
quite useful (now it is pretty easy to install, on any platform). The classic ray_tracing
approach you proposed can be easily ported to numba
by using numba @jit
decorator and casting the polygon to a numpy array. The code should look like:
@jit(nopython=True)
def ray_tracing(x,y,poly):
n = len(poly)
inside = False
p2x = 0.0
p2y = 0.0
xints = 0.0
p1x,p1y = poly[0]
for i in range(n+1):
p2x,p2y = poly[i % n]
if y > min(p1y,p2y):
if y <= max(p1y,p2y):
if x <= max(p1x,p2x):
if p1y != p2y:
xints = (y-p1y)*(p2x-p1x)/(p2y-p1y)+p1x
if p1x == p2x or x <= xints:
inside = not inside
p1x,p1y = p2x,p2y
return inside
The first execution will take a little longer than any subsequent call:
%%time
polygon=np.array(polygon)
inside1 = [numba_ray_tracing_method(point[0], point[1], polygon) for
point in points]
CPU times: user 129 ms, sys: 4.08 ms, total: 133 ms
Wall time: 132 ms
Which, after compilation will decrease to:
CPU times: user 18.7 ms, sys: 320 µs, total: 19.1 ms
Wall time: 18.4 ms
If you need speed at the first call of the function you can then pre-compile the code in a module using pycc
. Store the function in a src.py like:
from numba import jit
from numba.pycc import CC
cc = CC('nbspatial')
@cc.export('ray_tracing', 'b1(f8, f8, f8[:,:])')
@jit(nopython=True)
def ray_tracing(x,y,poly):
n = len(poly)
inside = False
p2x = 0.0
p2y = 0.0
xints = 0.0
p1x,p1y = poly[0]
for i in range(n+1):
p2x,p2y = poly[i % n]
if y > min(p1y,p2y):
if y <= max(p1y,p2y):
if x <= max(p1x,p2x):
if p1y != p2y:
xints = (y-p1y)*(p2x-p1x)/(p2y-p1y)+p1x
if p1x == p2x or x <= xints:
inside = not inside
p1x,p1y = p2x,p2y
return inside
if __name__ == "__main__":
cc.compile()
Build it with python src.py
and run:
import nbspatial
import numpy as np
lenpoly = 100
polygon = [[np.sin(x)+0.5,np.cos(x)+0.5] for x in
np.linspace(0,2*np.pi,lenpoly)[:-1]]
# random points set of points to test
N = 10000
# making a list instead of a generator to help debug
points = zip(np.random.random(N),np.random.random(N))
polygon = np.array(polygon)
%%time
result = [nbspatial.ray_tracing(point[0], point[1], polygon) for point in points]
CPU times: user 20.7 ms, sys: 64 µs, total: 20.8 ms
Wall time: 19.9 ms
In the numba code I used: 'b1(f8, f8, f8[:,:])'
In order to compile with nopython=True
, each var needs to be declared before the for loop
.
In the prebuild src code the line:
@cc.export('ray_tracing' , 'b1(f8, f8, f8[:,:])')
Is used to declare the function name and its I/O var types, a boolean output b1
and two floats f8
and a two-dimensional array of floats f8[:,:]
as input.
For my use case, I need to check if multiple points are inside a single polygon - In such a context, it is useful to take advantage of numba parallel capabilities to loop over a series of points. The example above can be changed to:
from numba import jit, njit
import numba
import numpy as np
@jit(nopython=True)
def pointinpolygon(x,y,poly):
n = len(poly)
inside = False
p2x = 0.0
p2y = 0.0
xints = 0.0
p1x,p1y = poly[0]
for i in numba.prange(n+1):
p2x,p2y = poly[i % n]
if y > min(p1y,p2y):
if y <= max(p1y,p2y):
if x <= max(p1x,p2x):
if p1y != p2y:
xints = (y-p1y)*(p2x-p1x)/(p2y-p1y)+p1x
if p1x == p2x or x <= xints:
inside = not inside
p1x,p1y = p2x,p2y
return inside
@njit(parallel=True)
def parallelpointinpolygon(points, polygon):
D = np.empty(len(points), dtype=numba.boolean)
for i in numba.prange(0, len(D)):
D[i] = pointinpolygon(points[i,0], points[i,1], polygon)
return D
Note: pre-compiling the above code will not enable the parallel capabilities of numba (parallel CPU target is not supported by pycc/AOT
compilation) see: https://github.com/numba/numba/issues/3336
Test:
import numpy as np
lenpoly = 100
polygon = [[np.sin(x)+0.5,np.cos(x)+0.5] for x in np.linspace(0,2*np.pi,lenpoly)[:-1]]
polygon = np.array(polygon)
N = 10000
points = np.random.uniform(-1.5, 1.5, size=(N, 2))
For N=10000
on a 72 core machine, returns:
%%timeit
parallelpointinpolygon(points, polygon)
# 480 µs ± 8.19 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)
0
instead of 1
(thanks @mehdi):for i in numba.prange(0, len(D))
Follow-up on the comparison made by @mehdi, I am adding a GPU-based method below. It uses the point_in_polygon
method, from the cuspatial
library:
import numpy as np
import cudf
import cuspatial
N = 100000002
lenpoly = 1000
polygon = [[np.sin(x)+0.5,np.cos(x)+0.5] for x in
np.linspace(0,2*np.pi,lenpoly)]
polygon = np.array(polygon)
points = np.random.uniform(-1.5, 1.5, size=(N, 2))
x_pnt = points[:,0]
y_pnt = points[:,1]
x_poly =polygon[:,0]
y_poly = polygon[:,1]
result = cuspatial.point_in_polygon(
x_pnt,
y_pnt,
cudf.Series([0], index=['geom']),
cudf.Series([0], name='r_pos', dtype='int32'),
x_poly,
y_poly,
)
Following @Mehdi comparison. For N=100000002
and lenpoly=1000
- I got the following results:
time_parallelpointinpolygon: 161.54760098457336
time_mpltPath: 307.1664695739746
time_ray_tracing_numpy_numba: 353.07356882095337
time_is_inside_sm_parallel: 37.45389246940613
time_is_inside_postgis_parallel: 127.13793849945068
time_is_inside_rapids: 4.246025562286377
hardware specs:
Notes:
The cuspatial.point_in_poligon
method, is quite robust and powerful, it offers the ability to work with multiple and complex polygons (I guess at the expense of performance)
The numba
methods can also be 'ported' on the GPU - it will be interesting to see a comparison which includes a porting to cuda
of fastest method mentioned by @Mehdi (is_inside_sm
).
You can add .a file in the linking command:
gcc yourfiles /path/to/library/libLIBRARY.a
But this is not talking with gcc driver, but with ld
linker as options like -Wl,anything
are.
When you tell gcc or ld -Ldir -lLIBRARY
, linker will check both static and dynamic versions of library (you can see a process with -Wl,--verbose
). To change order of library types checked you can use -Wl,-Bstatic
and -Wl,-Bdynamic
. Here is a man page of gnu LD: http://linux.die.net/man/1/ld
To link your program with lib1, lib3 dynamically and lib2 statically, use such gcc call:
gcc program.o -llib1 -Wl,-Bstatic -llib2 -Wl,-Bdynamic -llib3
Assuming that default setting of ld is to use dynamic libraries (it is on Linux).
New CSS Specs contain an experimental :has
pseudo selector that might be able to do this thing.
li:has(a:active) {
/* ... */
}
The browser support on this is basically non-existent at this time, but it is in consideration on the official specs.
While it is true that CSS cannot ASCEND, it is incorrect that you cannot grab the parent element of another element. Let me reiterate:
Using your HTML example code, you are able to grab the li without specifying li
ul * a {
property:value;
}
In this example, the ul is the parent of some element and that element is the parent of anchor. The downside of using this method is that if there is a ul with any child element that contains an anchor, it inherits the styles specified.
You may also use the child selector as well since you'll have to specify the parent element anyway.
ul>li a {
property:value;
}
In this example, the anchor must be a descendant of an li that MUST be a child of ul, meaning it must be within the tree following the ul declaration. This is going to be a bit more specific and will only grab a list item that contains an anchor AND is a child of ul.
SO, to answer your question by code.
ul.menu > li a.active {
property:value;
}
This should grab the ul with the class of menu, and the child list item that contains only an anchor with the class of active.
ThreadPoolExecutor
also has beforeExecute
and afterExecute
hook methods that you can override and make use of. Here is the description from ThreadPoolExecutor
's Javadocs.
Hook methods
This class provides protected overridable
beforeExecute(java.lang.Thread, java.lang.Runnable)
andafterExecute(java.lang.Runnable, java.lang.Throwable)
methods that are called before and after execution of each task. These can be used to manipulate the execution environment; for example, reinitializingThreadLocals
, gathering statistics, or adding log entries. Additionally, methodterminated()
can be overridden to perform any special processing that needs to be done once theExecutor
has fully terminated. If hook or callback methods throw exceptions, internal worker threads may in turn fail and abruptly terminate.
Let us think what an interpreter actually is: it's a piece of code that stores values in memory and lets the instructions in a program that it interprets access those values by their names, which are specified inside these instructions. So, the big job of an interpreter is to shape the rules of how we should use the names in those instructions to access the values that the interpreter stores.
On encountering "my", the interpreter creates a lexical variable: a named value that the interpreter can access only while it executes a block, and only from within that syntactic block. On encountering "our", the interpreter makes a lexical alias of a package variable: it binds a name, which the interpreter is supposed from then on to process as a lexical variable's name, until the block is finished, to the value of the package variable with the same name.
The effect is that you can then pretend that you're using a lexical variable and bypass the rules of 'use strict' on full qualification of package variables. Since the interpreter automatically creates package variables when they are first used, the side effect of using "our" may also be that the interpreter creates a package variable as well. In this case, two things are created: a package variable, which the interpreter can access from everywhere, provided it's properly designated as requested by 'use strict' (prepended with the name of its package and two colons), and its lexical alias.
Sources:
The brackets are required if you use keywords or special chars in the column names or identifiers. You could name a column [First Name]
(with a space)--but then you'd need to use brackets every time you referred to that column.
The newer tools add them everywhere just in case or for consistency.
In lodash you can use _.includes (which also aliases to _.contains)
You can search the whole array:
_.includes([1, 2, 3], 1); // true
You can search the array from a starting index:
_.includes([1, 2, 3], 1, 1); // false (begins search at index 1)
Search a string:
_.includes('pebbles', 'eb'); // true (string contains eb)
Also works for checking simple arrays of objects:
_.includes({ 'user': 'fred', 'age': 40 }, 'fred'); // true
_.includes({ 'user': 'fred', 'age': false }, false); // true
One thing to note about the last case is it works for primitives like strings, numbers and booleans but cannot search through arrays or objects
_.includes({ 'user': 'fred', 'age': {} }, {}); // false
_.includes({ 'user': [1,2,3], 'age': {} }, 3); // false
Note: I wrote this answer when Entity Framework 4 was actual. The point of this answer was not to get into trivial .Any()
vs .Count()
performance testing. The point was to signal that EF is far from perfect. Newer versions are better... but if you have part of code that's slow and it uses EF, test with direct TSQL and compare performance rather than relying on assumptions (that .Any()
is ALWAYS faster than .Count() > 0
).
While I agree with most up-voted answer and comments - especially on the point Any
signals developer intent better than Count() > 0
- I've had situation in which Count is faster by order of magnitude on SQL Server (EntityFramework 4).
Here is query with Any
that thew timeout exception (on ~200.000 records):
con = db.Contacts.
Where(a => a.CompanyId == companyId && a.ContactStatusId <= (int) Const.ContactStatusEnum.Reactivated
&& !a.NewsletterLogs.Any(b => b.NewsletterLogTypeId == (int) Const.NewsletterLogTypeEnum.Unsubscr)
).OrderBy(a => a.ContactId).
Skip(position - 1).
Take(1).FirstOrDefault();
Count
version executed in matter of milliseconds:
con = db.Contacts.
Where(a => a.CompanyId == companyId && a.ContactStatusId <= (int) Const.ContactStatusEnum.Reactivated
&& a.NewsletterLogs.Count(b => b.NewsletterLogTypeId == (int) Const.NewsletterLogTypeEnum.Unsubscr) == 0
).OrderBy(a => a.ContactId).
Skip(position - 1).
Take(1).FirstOrDefault();
I need to find a way to see what exact SQL both LINQs produce - but it's obvious there is a huge performance difference between Count
and Any
in some cases, and unfortunately it seems you can't just stick with Any
in all cases.
EDIT: Here are generated SQLs. Beauties as you can see ;)
ANY
:
exec sp_executesql N'SELECT TOP (1) [Project2].[ContactId] AS [ContactId], [Project2].[CompanyId] AS [CompanyId], [Project2].[ContactName] AS [ContactName], [Project2].[FullName] AS [FullName], [Project2].[ContactStatusId] AS [ContactStatusId], [Project2].[Created] AS [Created] FROM ( SELECT [Project2].[ContactId] AS [ContactId], [Project2].[CompanyId] AS [CompanyId], [Project2].[ContactName] AS [ContactName], [Project2].[FullName] AS [FullName], [Project2].[ContactStatusId] AS [ContactStatusId], [Project2].[Created] AS [Created], row_number() OVER (ORDER BY [Project2].[ContactId] ASC) AS [row_number] FROM ( SELECT [Extent1].[ContactId] AS [ContactId], [Extent1].[CompanyId] AS [CompanyId], [Extent1].[ContactName] AS [ContactName], [Extent1].[FullName] AS [FullName], [Extent1].[ContactStatusId] AS [ContactStatusId], [Extent1].[Created] AS [Created] FROM [dbo].[Contact] AS [Extent1] WHERE ([Extent1].[CompanyId] = @p__linq__0) AND ([Extent1].[ContactStatusId] <= 3) AND ( NOT EXISTS (SELECT 1 AS [C1] FROM [dbo].[NewsletterLog] AS [Extent2] WHERE ([Extent1].[ContactId] = [Extent2].[ContactId]) AND (6 = [Extent2].[NewsletterLogTypeId]) )) ) AS [Project2] ) AS [Project2] WHERE [Project2].[row_number] > 99 ORDER BY [Project2].[ContactId] ASC',N'@p__linq__0 int',@p__linq__0=4
COUNT
:
exec sp_executesql N'SELECT TOP (1) [Project2].[ContactId] AS [ContactId], [Project2].[CompanyId] AS [CompanyId], [Project2].[ContactName] AS [ContactName], [Project2].[FullName] AS [FullName], [Project2].[ContactStatusId] AS [ContactStatusId], [Project2].[Created] AS [Created] FROM ( SELECT [Project2].[ContactId] AS [ContactId], [Project2].[CompanyId] AS [CompanyId], [Project2].[ContactName] AS [ContactName], [Project2].[FullName] AS [FullName], [Project2].[ContactStatusId] AS [ContactStatusId], [Project2].[Created] AS [Created], row_number() OVER (ORDER BY [Project2].[ContactId] ASC) AS [row_number] FROM ( SELECT [Project1].[ContactId] AS [ContactId], [Project1].[CompanyId] AS [CompanyId], [Project1].[ContactName] AS [ContactName], [Project1].[FullName] AS [FullName], [Project1].[ContactStatusId] AS [ContactStatusId], [Project1].[Created] AS [Created] FROM ( SELECT [Extent1].[ContactId] AS [ContactId], [Extent1].[CompanyId] AS [CompanyId], [Extent1].[ContactName] AS [ContactName], [Extent1].[FullName] AS [FullName], [Extent1].[ContactStatusId] AS [ContactStatusId], [Extent1].[Created] AS [Created], (SELECT COUNT(1) AS [A1] FROM [dbo].[NewsletterLog] AS [Extent2] WHERE ([Extent1].[ContactId] = [Extent2].[ContactId]) AND (6 = [Extent2].[NewsletterLogTypeId])) AS [C1] FROM [dbo].[Contact] AS [Extent1] ) AS [Project1] WHERE ([Project1].[CompanyId] = @p__linq__0) AND ([Project1].[ContactStatusId] <= 3) AND (0 = [Project1].[C1]) ) AS [Project2] ) AS [Project2] WHERE [Project2].[row_number] > 99 ORDER BY [Project2].[ContactId] ASC',N'@p__linq__0 int',@p__linq__0=4
Seems that pure Where with EXISTS works much worse than calculating Count and then doing Where with Count == 0.
Let me know if you guys see some error in my findings. What can be taken out of all this regardless of Any vs Count discussion is that any more complex LINQ is way better off when rewritten as Stored Procedure ;).
You could try this
def find(ch,string1):
for i in range(len(string1)):
if ch == string1[i]:
pos.append(i)
You really should try to google first.
Wikipedia has a explanation of leap years. The algorithm your describing is for the Proleptic Gregorian calendar.
More about the math around it can be found in the article Calendar Algorithms.
You can choose any extension in the world if you setup Apache correctly. You could use .html to do PHP if you set up in your Apache config.
In conclusion, extension has nothing to do with the app or website itself. You can use the one you want, but normaly, use .php (to not reinvent the wheel)
But in 2019, you should use routing and forgot about extension at the end.
I recommend you using Laravel.
In answer to @KingCrunch: True, Apache not use it by default but you can easily use it if you change config. But this it not recommended since everybody know that it not really an option.
I already saw .html files that executed PHP using the html extension.
Use like this (source):
function setCookie(c_name,value,exdays)
{
var exdate=new Date();
exdate.setDate(exdate.getDate() + exdays);
var c_value=escape(value) + ((exdays==null) ? "" : "; expires="+exdate.toUTCString());
document.cookie = c_name+"="+c_value+"; path=/";
}
For Linux & Unix System you can use ps -ef | grep process_name
to get the full command line.
On SunOS systems, if you want to get full command line, you can use
/usr/ucb/ps -auxww | grep -i process_name
To get the full command line you need to become super user.
pargs -a PROCESS_ID
will give a detailed list of arguments passed to a process. It will output the array of arguments in like this:
argv[o]: first argument
argv[1]: second..
argv[*]: and so on..
I didn't find any similar command for Linux, but I would use the following command to get similar output:
tr '\0' '\n' < /proc/<pid>/environ
I'm not sure if you want to find duplicate files or just compare two single files. If the latter, the above approach (filecmp) is better, if the former, the following approach is better.
There are lots of duplicate files detection questions here. Assuming they are not very small and that performance is important, you can
Here's is an answer with Python implementations (I prefer the one by nosklo, BTW)
we are using MSMQ in our system, this error message came. The reason was our queue was full and we did not handle the error logging mechanism properly so we were getting the above exception instead of msmq ful. We cleared the messages then it is working fine.
Assume that you have an array of classes to being added, you can use ES6 spread syntax:
let classes = ['first', 'second', 'third'];
elem.classList.add(...classes);
surprise to see that no have given this syntax.
.each
syntax with data or collection
jQuery.each(collection, callback(indexInArray, valueOfElement));
OR
jQuery.each( jQuery('#list option'), function(indexInArray, valueOfElement){
//your code here
});
In my case the "bind-address" setting was the problem. Commenting this setting in my.cnf
did not help, because in my case mysql set the default to 127.0.0.1 for some reason.
To verify what setting MySql is currently using, open the command line on your local box:
mysql -h localhost -u myname -pmypass mydb
Read out the current setting:
Show variables where variable_name like "bind%"
You should see 0.0.0.0 here if you want to allow access from all hosts. If this is not the case, edit your /etc/mysql/my.cnf
and set bind-address under the [mysqld] section:
bind-address=0.0.0.0
Finally restart your MySql server to pick up the new setting:
sudo service mysql restart
Try again and check if the new setting has been picked up.
The notion of complex numbers was introduced in mathematics, from the need of calculating negative quadratic roots. Complex number concept was taken by a variety of engineering fields.
Today that complex numbers are widely used in advanced engineering domains such as physics, electronics, mechanics, astronomy, etc...
Real and imaginary part, of a negative square root example:
#include <stdio.h>
#include <complex.h>
int main()
{
int negNum;
printf("Calculate negative square roots:\n"
"Enter negative number:");
scanf("%d", &negNum);
double complex negSqrt = csqrt(negNum);
double pReal = creal(negSqrt);
double pImag = cimag(negSqrt);
printf("\nReal part %f, imaginary part %f"
", for negative square root.(%d)",
pReal, pImag, negNum);
return 0;
}
A Runnable is basically a type of class (Runnable is an Interface) that can be put into a thread, describing what the thread is supposed to do.
The Runnable Interface requires of the class to implement the method run()
like so:
public class MyRunnableTask implements Runnable {
public void run() {
// do stuff here
}
}
And then use it like this:
Thread t = new Thread(new MyRunnableTask());
t.start();
If you did not have the Runnable
interface, the Thread class, which is responsible to execute your stuff in the other thread, would not have the promise to find a run()
method in your class, so you could get errors. That is why you need to implement the interface.
Note that you do not need to define a class as usual, you can do all of that inline:
Thread t = new Thread(new Runnable() {
public void run() {
// stuff here
}
});
t.start();
This is similar to the above, only you don't create another named class.
You can try the margin
property in the Container
. Wrap the TextField
inside a Container
and adjust the margin
property.
new Container(
margin: const EdgeInsets.only(right: 10, left: 10),
child: new TextField(
decoration: new InputDecoration(
hintText: 'username',
icon: new Icon(Icons.person)),
)
),
You can use model class and use setTag() getTag() methods to keep track which items from listview are checked and which not.
More reference for this : listview with checkbox in android
Source code for model
public class Model {
private boolean isSelected;
private String animal;
public String getAnimal() {
return animal;
}
public void setAnimal(String animal) {
this.animal = animal;
}
public boolean getSelected() {
return isSelected;
}
public void setSelected(boolean selected) {
isSelected = selected;
}
}
put this in your custom adapter
holder.checkBox.setTag(R.integer.btnplusview, convertView);
holder.checkBox.setTag( position);
holder.checkBox.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
View tempview = (View) holder.checkBox.getTag(R.integer.btnplusview);
TextView tv = (TextView) tempview.findViewById(R.id.animal);
Integer pos = (Integer) holder.checkBox.getTag();
Toast.makeText(context, "Checkbox "+pos+" clicked!", Toast.LENGTH_SHORT).show();
if(modelArrayList.get(pos).getSelected()){
modelArrayList.get(pos).setSelected(false);
}else {
modelArrayList.get(pos).setSelected(true);
}
}
});
whole code for customAdapter is
public class CustomAdapter extends BaseAdapter {
private Context context;
public static ArrayList<Model> modelArrayList;
public CustomAdapter(Context context, ArrayList<Model> modelArrayList) {
this.context = context;
this.modelArrayList = modelArrayList;
}
@Override
public int getViewTypeCount() {
return getCount();
}
@Override
public int getItemViewType(int position) {
return position;
}
@Override
public int getCount() {
return modelArrayList.size();
}
@Override
public Object getItem(int position) {
return modelArrayList.get(position);
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
final ViewHolder holder;
if (convertView == null) {
holder = new ViewHolder(); LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.lv_item, null, true);
holder.checkBox = (CheckBox) convertView.findViewById(R.id.cb);
holder.tvAnimal = (TextView) convertView.findViewById(R.id.animal);
convertView.setTag(holder);
}else {
// the getTag returns the viewHolder object set as a tag to the view
holder = (ViewHolder)convertView.getTag();
}
holder.checkBox.setText("Checkbox "+position);
holder.tvAnimal.setText(modelArrayList.get(position).getAnimal());
holder.checkBox.setChecked(modelArrayList.get(position).getSelected());
holder.checkBox.setTag(R.integer.btnplusview, convertView);
holder.checkBox.setTag( position);
holder.checkBox.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
View tempview = (View) holder.checkBox.getTag(R.integer.btnplusview);
TextView tv = (TextView) tempview.findViewById(R.id.animal);
Integer pos = (Integer) holder.checkBox.getTag();
Toast.makeText(context, "Checkbox "+pos+" clicked!", Toast.LENGTH_SHORT).show();
if(modelArrayList.get(pos).getSelected()){
modelArrayList.get(pos).setSelected(false);
}else {
modelArrayList.get(pos).setSelected(true);
}
}
});
return convertView;
}
private class ViewHolder {
protected CheckBox checkBox;
private TextView tvAnimal;
}
}
#!/bin/bash
OFFSET=1;
eval `date "+day=%d; month=%m; year=%Y"`
# Subtract offset from day, if it goes below one use 'cal'
# to determine the number of days in the previous month.
day=`expr $day - $OFFSET`
if [ $day -le 0 ] ;then
month=`expr $month - 1`
if [ $month -eq 0 ] ;then
year=`expr $year - 1`
month=12
fi
set `cal $month $year`
xday=${$#}
day=`expr $xday + $day`
fi
echo $year-$month-$day
Thought I would add this module I found: https://www.npmjs.org/package/global-tunnel, which worked great for me (Worked immediately with all my code and third party modules with only the code below).
require('global-tunnel').initialize({
host: '10.0.0.10',
port: 8080
});
Do this once, and all http (and https) in your application goes through the proxy.
Alternately, calling
require('global-tunnel').initialize();
Will use the http_proxy
environment variable
Here is a solution to make an accessible audio player with valid xHTML and non-intrusive javascript thanks to W3C Web Audio API :
What to do :
First of all, we check if the browser implements Web Audio API:
if (typeof Audio === 'undefined') {
// abort
}
Then we instanciate an Audio
object:
var player = new Audio('mysong.ogg');
Then we can check if the browser is able to decode this type of file :
if(!player.canPlayType('audio/ogg')) {
// abort
}
Or even if it can play the codec :
if(!player.canPlayType('audio/ogg; codecs="vorbis"')) {
// abort
}
Then we can use player.play()
, player.pause()
;
I have done a tiny JQuery plugin that I called nanodio to test this.
You can check how it works on my demo page (sorry, but text is in french :p )
Just click on a link to play, and click again to pause. If the browser can read it natively, it will. If it can't, it should download the file.
This is just a little example, but you can improve it to use any element of your page as a control button or generate ones on the fly with javascript... Whatever you want.
You want to create an Object, not an Array.
Like so,
var Map = {};
Map['key1'] = 'value1';
Map['key2'] = 'value2';
You can check if the key exists in multiple ways:
Map.hasOwnProperty(key);
Map[key] != undefined // For illustration // Edit, remove null check
if (key in Map) ...
VBA does not have a Continue
or any other equivalent keyword to immediately jump to the next loop iteration. I would suggest a judicious use of Goto
as a workaround, especially if this is just a contrived example and your real code is more complicated:
For i = LBound(Schedule, 1) To UBound(Schedule, 1)
If (Schedule(i, 1) < ReferenceDate) Then
PrevCouponIndex = i
Goto NextIteration
End If
DF = Application.Run("SomeFunction"....)
PV = PV + (DF * Coupon / CouponFrequency)
'....'
'a whole bunch of other code you are not showing us'
'....'
NextIteration:
Next
If that is really all of your code, though, @Brian is absolutely correct. Just put an Else
clause in your If
statement and be done with it.
You've got an a
tag containing an img
tag. That's your normal state.
You then add a background-image
as your hover state, and it's appearing in the background of your a
tag - behind the img
tag.
You should probably create a CSS sprite and use background positions, but this should get you started:
<div>
<a href="home.html"></a>
</div>
div a {
width: 59px;
height: 59px;
display: block;
background-image: url('images/btnhome.png');
}
div a:hover {
background-image: url('images/btnhomeh.png);
}
This A List Apart Article from 2004 is still relevant, and will give you some background about sprites, and why it's a good idea to use them instead of two different images. It's a lot better written than anything I could explain to you.
But if we write it ourselves, that constructor is called automatically.
That's not correct. The no-args constructor is called if you call it, and regardless of whether or not you wrote it yourself. It is also called automatically if you don't code an explicit super(...) call in a derived class.
None of this constitutes constructor overriding. There is no such thing in Java. There is constructor overloading, i.e. providing different argument sets.
for ( i = 0; i < total.length; i++ ); // remove this
{
if (total[i]!=0)
System.out.println( "Letter" + (char)( 'a' + i) + " count =" + total[i]);
}
The for loop loops until i=26
(where 26 is total.length
) and then your if
is executed, going over the bounds of the array. Remove the ;
at the end of the for
loop.
Basically you have two ways to iterate over all elements:
1. Using recursion (the most common way I think):
public static void main(String[] args) throws SAXException, IOException,
ParserConfigurationException, TransformerException {
DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory
.newInstance();
DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
Document document = docBuilder.parse(new File("document.xml"));
doSomething(document.getDocumentElement());
}
public static void doSomething(Node node) {
// do something with the current node instead of System.out
System.out.println(node.getNodeName());
NodeList nodeList = node.getChildNodes();
for (int i = 0; i < nodeList.getLength(); i++) {
Node currentNode = nodeList.item(i);
if (currentNode.getNodeType() == Node.ELEMENT_NODE) {
//calls this method for all the children which is Element
doSomething(currentNode);
}
}
}
2. Avoiding recursion using getElementsByTagName()
method with *
as parameter:
public static void main(String[] args) throws SAXException, IOException,
ParserConfigurationException, TransformerException {
DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory
.newInstance();
DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
Document document = docBuilder.parse(new File("document.xml"));
NodeList nodeList = document.getElementsByTagName("*");
for (int i = 0; i < nodeList.getLength(); i++) {
Node node = nodeList.item(i);
if (node.getNodeType() == Node.ELEMENT_NODE) {
// do something with the current element
System.out.println(node.getNodeName());
}
}
}
I think these ways are both efficient.
Hope this helps.
I came up with this.This seems to work best for me.It converts a string of number and splits it into array of integer:
void splitInput(int arr[], int sizeArr, char num[])
{
for(int i = 0; i < sizeArr; i++)
// We are subtracting 48 because the numbers in ASCII starts at 48.
arr[i] = (int)num[i] - 48;
}
In my case, it happened after installing Microsoft Web Matrix. Uninstalling this trash along with "Microsoft Web Deploy" fixed the issue.
Use [NSIndexPath indexPathForRow:inSection:]
to quickly create an index path.
Edit: In Swift 3:
let indexPath = IndexPath(row: rowIndex, section: sectionIndex)
Swift 5
IndexPath(row: 0, section: 0)
The problem could also be that Apache can't find php.ini If you set PHPIniDir incorrectly. Mine was set to: PHPIniDir "c:/php7" But, the folder is actually just "php" The clue was viewing phpinfo() Which showed: Configuration File (php.ini) Path C:\windows
A solution is to use background-position to mimic the gradient transition. This solution was used in Twitter Bootstrap a few months ago.
Update
http://codersblock.blogspot.fr/2013/12/gradient-animation-trick.html?showComment=1390287622614
Here is a quick example:
Link state
.btn {
font-family: "Helvetica Neue", Arial, sans-serif;
font-size: 12px;
font-weight: 300;
position: relative;
display: inline-block;
text-decoration: none;
color: #fff;
padding: 20px 40px;
background-image: -moz-linear-gradient(top, #50abdf, #1f78aa);
background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#50abdf), to(#1f78aa));
background-image: -webkit-linear-gradient(top, #50abdf, #1f78aa);
background-image: -o-linear-gradient(top, #50abdf, #1f78aa);
background-image: linear-gradient(to bottom, #50abdf, #1f78aa);
background-repeat: repeat-x;
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff50abdf', endColorstr='#ff1f78aa', GradientType=0);
background-repeat: repeat-y;
background-size: 100% 90px;
background-position: 0 -30px;
-webkit-transition: all 0.2s linear;
-moz-transition: all 0.2s linear;
-o-transition: all 0.2s linear;
transition: all 0.2s linear;
}
Hover state
.btn:hover {
background-position: 0 0;
}
I am not sure if previous versions of pandas
prevented this but now the following snippet works perfectly for me and produces exactly what you want without having to use apply
>>> import pandas as pd
>>> from sklearn.preprocessing import MinMaxScaler
>>> scaler = MinMaxScaler()
>>> dfTest = pd.DataFrame({'A':[14.00,90.20,90.95,96.27,91.21],
'B':[103.02,107.26,110.35,114.23,114.68],
'C':['big','small','big','small','small']})
>>> dfTest[['A', 'B']] = scaler.fit_transform(dfTest[['A', 'B']])
>>> dfTest
A B C
0 0.000000 0.000000 big
1 0.926219 0.363636 small
2 0.935335 0.628645 big
3 1.000000 0.961407 small
4 0.938495 1.000000 small
You should use $_FILES[$form_name]['error']
. It returns UPLOAD_ERR_NO_FILE
if no file was uploaded. Full list: PHP: Error Messages Explained
function isUploadOkay($form_name, &$error_message) {
if (!isset($_FILES[$form_name])) {
$error_message = "No file upload with name '$form_name' in form.";
return false;
}
$error = $_FILES[$form_name]['error'];
// List at: http://php.net/manual/en/features.file-upload.errors.php
if ($error != UPLOAD_ERR_OK) {
switch ($error) {
case UPLOAD_ERR_INI_SIZE:
$error_message = 'The uploaded file exceeds the upload_max_filesize directive in php.ini.';
break;
case UPLOAD_ERR_FORM_SIZE:
$error_message = 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form.';
break;
case UPLOAD_ERR_PARTIAL:
$error_message = 'The uploaded file was only partially uploaded.';
break;
case UPLOAD_ERR_NO_FILE:
$error_message = 'No file was uploaded.';
break;
case UPLOAD_ERR_NO_TMP_DIR:
$error_message = 'Missing a temporary folder.';
break;
case UPLOAD_ERR_CANT_WRITE:
$error_message = 'Failed to write file to disk.';
break;
case UPLOAD_ERR_EXTENSION:
$error_message = 'A PHP extension interrupted the upload.';
break;
default:
$error_message = 'Unknown error';
break;
}
return false;
}
$error_message = null;
return true;
}
If you are using twitter Bootstrap add the class text-center to your code.
<div class='login-icon'><i class="icon-lock text-center"></i></div>
I don't know about javax.media.j3d, so I might be mistaken, but you usually want to investigate whether there is a memory leak. Well, as others note, if it was 64MB and you are doing something with 3d, maybe it's obviously too small...
But if I were you, I'll set up a profiler or visualvm, and let your application run for extended time (days, weeks...). Then look at the heap allocation history, and make sure it's not a memory leak.
If you use a profiler, like JProfiler or the one that comes with NetBeans IDE etc., you can see what object is being accumulating, and then track down what's going on.. Well, almost always something is incorrectly not removed from a collection...
HTML frames, but it is not an ideal solution. You would essentially be accessing 3 separate HTML pages at once.
Your other option is to use AJAX I think.
After careful consideration this dillema has a few different solutions:
Aggregate Everything Use an aggregate on each column to get the biggest or smallest field value. This is what I am doing since it takes 2 partially filled out records and "merges" the data.
http://sqlfiddle.com/#!3/59cde/1
SELECT
UPPER(IDNo) AS user_id
, MAX(FirstName) AS name_first
, MAX(LastName) AS name_last
, MAX(entry) AS row_num
FROM people P
GROUP BY
IDNo
Get First (or Last record)
http://sqlfiddle.com/#!3/59cde/23
-- ------------------------------------------------------
-- Notes
-- entry: Auto-Number primary key some sort of unique PK is required for this method
-- IDNo: Should be primary key in feed, but is not, we are making an upper case version
-- This gets the first entry to get last entry, change MIN() to MAX()
-- ------------------------------------------------------
SELECT
PC.user_id
,PData.FirstName
,PData.LastName
,PData.entry
FROM (
SELECT
P2.user_id
,MIN(P2.entry) AS rownum
FROM (
SELECT
UPPER(P.IDNo) AS user_id
, P.entry
FROM people P
) AS P2
GROUP BY
P2.user_id
) AS PC
LEFT JOIN people PData
ON PData.entry = PC.rownum
ORDER BY
PData.entry
RegisteredClientScriptBlock
adds the script at the top of the page on the post-back with no assurance about the order, meaning that either the call is being injected after the function declaration (your js file with the function is inlined after your call) or when the script tries to execute the div is probably not there yet 'cause the page is still rendering. A good idea is probably to simulate the two scenarios I described above on firebug and see if you get similar errors.
My guess is this would work if you append the script at the bottom of the page with RegisterStartupScript
- worth a shot at least.
Anyway, as an alternative solution if you add the runat="server"
attribute to the div you will be able to access it by its id in the codebehind (without reverting to js - how cool that might be), and make it disappear like this:
data.visible = false
Try postion:sticky on parent element.
Using SELECT DISTINCT ...
as part of a Subquery before calling LISTAGG is probably the best way for simple queries, as noted by @a_horse_with_no_name
However, in more complex queries, it might not be possible, or easy, to accomplish this. I had this come up in a scenario that was using top-n approach using an analytic function.
So I found the COLLECT
aggregate function. It is documented to have the UNIQUE
or DISTINCT
modifier available. Only in 10g, it quietly fails (it ignores the modifier without error). However, to overcome this, from another answer, I came to this solution:
SELECT
...
(
SELECT LISTAGG(v.column_value,',') WITHIN GROUP (ORDER BY v.column_value)
FROM TABLE(columns_tab) v
) AS columns,
...
FROM (
SELECT
...
SET(CAST(COLLECT(UNIQUE some_column ORDER BY some_column) AS tab_typ)) AS columns_tab,
...
)
Basically, by using SET
, I remove the duplicates in my collection.
You would still need to define the tab_typ
as a basic collection type, and in the case of a VARCHAR
, this would be for example:
CREATE OR REPLACE type tab_typ as table of varchar2(100)
/
Also as a correction to the answer from @a_horse_with_no_name on the multi column situation, where you might want to aggregate still on a third (or more) columns:
select
col1,
listagg(CASE rn2 WHEN 1 THEN col2 END, ',') within group (order by col2) AS col2_list,
listagg(CASE rn3 WHEN 1 THEN col3 END, ',') within group (order by col3) AS col3_list,
SUM(col4) AS col4
from (
select
col1,
col2,
row_number() over (partition by col1, col2 order by null) as rn2,
row_number() over (partition by col1, col3 order by null) as rn3
from foo
)
group by col1;
If you would leave the rn = 1
as a where condition to the query, you would aggregate other columns incorrectly.
If you want to display at row=159220
row=159220
#To display in a table format
display(res.loc[row:row])
display(res.iloc[row:row+1])
#To display in print format
display(res.loc[row])
display(res.iloc[row])
How about this: I used it with a mixin
non-compliant object
@Entity
@Getter
@NoArgsConstructor
public class Telemetry {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long pk;
private String id;
private String organizationId;
private String baseType;
private String name;
private Double lat;
private Double lon;
private Instant updateTimestamp;
}
Mixin:
@JsonAutoDetect(fieldVisibility = ANY, getterVisibility = NONE, setterVisibility = NONE)
public static class TelemetryMixin {}
Usage:
ObjectMapper om = objectMapper.addMixIn(Telemetry.class, TelemetryMixin.class);
Telemetry[] telemetries = om.readValue(someJson, Telemetry[].class);
There is nothing that says you couldn't foreach any number of classes and apply the same mixin.
If you're not familiar with mixins, they are conceptually simply: The structure of the mixin is super imposed on the target class (according to jackson, not as far as the JVM is concerned).
Here is a use case for AtomicReference:
Consider this class that acts as a number range, and uses individual AtmomicInteger variables to maintain lower and upper number bounds.
public class NumberRange {
// INVARIANT: lower <= upper
private final AtomicInteger lower = new AtomicInteger(0);
private final AtomicInteger upper = new AtomicInteger(0);
public void setLower(int i) {
// Warning -- unsafe check-then-act
if (i > upper.get())
throw new IllegalArgumentException(
"can't set lower to " + i + " > upper");
lower.set(i);
}
public void setUpper(int i) {
// Warning -- unsafe check-then-act
if (i < lower.get())
throw new IllegalArgumentException(
"can't set upper to " + i + " < lower");
upper.set(i);
}
public boolean isInRange(int i) {
return (i >= lower.get() && i <= upper.get());
}
}
Both setLower and setUpper are check-then-act sequences, but they do not use sufficient locking to make them atomic. If the number range holds (0, 10), and one thread calls setLower(5) while another thread calls setUpper(4), with some unlucky timing both will pass the checks in the setters and both modifications will be applied. The result is that the range now holds (5, 4)an invalid state. So while the underlying AtomicIntegers are thread-safe, the composite class is not. This can be fixed by using a AtomicReference instead of using individual AtomicIntegers for upper and lower bounds.
public class CasNumberRange {
// Immutable
private static class IntPair {
final int lower; // Invariant: lower <= upper
final int upper;
private IntPair(int lower, int upper) {
this.lower = lower;
this.upper = upper;
}
}
private final AtomicReference<IntPair> values =
new AtomicReference<IntPair>(new IntPair(0, 0));
public int getLower() {
return values.get().lower;
}
public void setLower(int lower) {
while (true) {
IntPair oldv = values.get();
if (lower > oldv.upper)
throw new IllegalArgumentException(
"Can't set lower to " + lower + " > upper");
IntPair newv = new IntPair(lower, oldv.upper);
if (values.compareAndSet(oldv, newv))
return;
}
}
public int getUpper() {
return values.get().upper;
}
public void setUpper(int upper) {
while (true) {
IntPair oldv = values.get();
if (upper < oldv.lower)
throw new IllegalArgumentException(
"Can't set upper to " + upper + " < lower");
IntPair newv = new IntPair(oldv.lower, upper);
if (values.compareAndSet(oldv, newv))
return;
}
}
}
<form action="myController/myAction" method="POST">
<input type="text" name="valueINeed" />
<input type="submit" value="View Report" />
</form>
controller:
[HttpPost]
public ActionResult myAction(string valueINeed)
{
//....
}
How are you loading this page? Is it getting anything on POST to load? If it's not, then the $name = $_POST['Name']; assignation doesn't have any 'Name' on POST.
You can use one of these piece of codes:
@FixMethodOrder(MethodSorters.JVM)
OR @FixMethodOrder(MethodSorters.DEFAULT)
OR @FixMethodOrder(MethodSorters.NAME_ASCENDING)
Before your test class like this:
@FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class BookTest {...}
I had the same problem and I fixed it by installing nodejs
on my system independent of the gem.
on ubuntu its: sudo apt-get install nodejs
I'm using 64bit ubuntu 11.10
update: From @Galina 's answer below I'm guessing that the latest version of nodejs is required, so @steve98177 your best option on a redhat(or CentOS) box is to install from source code as @Galina did, but as you can't "make/install" on this box ?, I suggest you try to install a fedora rpm(long shot) https://github.com/joyent/node/wiki/Installing-Node.js-via-package-manager or find another RH/CentOs box(that you can 'make' on) and create your own rpm and install on original RH box(if old glibc on RH plays nice).
The real issue here(IMHO) is installing Gems that have dependencies on installed packages outside of the ruby environment, is there a way of knowing before installing ? an RFI for Gems or bundler ?
sudo yum install nodejs
Number((6.688689).toFixed(1)); // 6.7
var number = 6.688689;
var roundedNumber = Math.round(number * 10) / 10;
Use toFixed()
function.
(6.688689).toFixed(); // equal to "7"
(6.688689).toFixed(1); // equal to "6.7"
(6.688689).toFixed(2); // equal to "6.69"
You do not specify why you think it is wrong but I can se two dangers:
BETWEEN can be implemented differently in different databases sometimes it is including the border values and sometimes excluding, resulting in that 1 and 31 of january would end up NOTHING. You should test how you database does this.
Also, if RATE_DATE contains hours also 2010-01-31 might be translated to 2010-01-31 00:00 which also would exclude any row with an hour other that 00:00.
you need to create a new ssh key by typing the following - ssh-keygen -t rsa
Then you need to add: - heroku keys:add
Then if you type - heroku open
The problem has been solved.
It worked for me anyway, you could give it a try...
The rules for new
are analogous to what happens when you initialize an object with automatic storage duration (although, because of vexing parse, the syntax can be slightly different).
If I say:
int my_int; // default-initialize ? indeterminate (non-class type)
Then my_int
has an indeterminate value, since it is a non-class type. Alternatively, I can value-initialize my_int
(which, for non-class types, zero-initializes) like this:
int my_int{}; // value-initialize ? zero-initialize (non-class type)
(Of course, I can't use ()
because that would be a function declaration, but int()
works the same as int{}
to construct a temporary.)
Whereas, for class types:
Thing my_thing; // default-initialize ? default ctor (class type)
Thing my_thing{}; // value-initialize ? default-initialize ? default ctor (class type)
The default constructor is called to create a Thing
, no exceptions.
So, the rules are more or less:
{}
) or default-initialized (without {}
). (There is some additional prior zeroing behavior with value-initialization, but the default constructor is always given the final say.){}
used?
These rules translate precisely to new
syntax, with the added rule that ()
can be substituted for {}
because new
is never parsed as a function declaration. So:
int* my_new_int = new int; // default-initialize ? indeterminate (non-class type)
Thing* my_new_thing = new Thing; // default-initialize ? default ctor (class type)
int* my_new_zeroed_int = new int(); // value-initialize ? zero-initialize (non-class type)
my_new_zeroed_int = new int{}; // ditto
my_new_thing = new Thing(); // value-initialize ? default-initialize ? default ctor (class type)
(This answer incorporates conceptual changes in C++11 that the top answer currently does not; notably, a new scalar or POD instance that would end up an with indeterminate value is now technically now default-initialized (which, for POD types, technically calls a trivial default constructor). While this does not cause much practical change in behavior, it does simplify the rules somewhat.)
You may want to build a virtualenv
of python3, then install packages of python3 after activating the virtualenv. So your system won't be messed up :)
This could be something like:
virtualenv -p /usr/bin/python3 py3env
source py3env/bin/activate
pip install package-name
>>> lis=[[180.0], [173.8], [164.2], [156.5], [147.2], [138.2]]
>>> [x[0] for x in lis]
[180.0, 173.8, 164.2, 156.5, 147.2, 138.2]
Required arguments (the ones without defaults), must be at the start to allow client code to only supply two. If the optional arguments were at the start, it would be confusing:
fun1("who is who", 3, "jack")
What would that do in your first example? In the last, x is "who is who", y is 3 and a = "jack".
Create a POJO Java Class for the objects in the list like so:
class NameUrlClass{
private String name;
private String url;
//Constructor
public NameUrlClass(String name,String url){
this.name = name;
this.url = url;
}
}
Now simply create a List of NameUrlClass and initialize it to an ArrayList like so:
List<NameUrlClass> obj = new ArrayList<NameUrlClass>;
You can use store the JSON array in this object
obj = JSONArray;//[{"name":"name1","url":"url1"}{"name":"name2","url":"url2"},...]
When I tried to access the result from
Object.keys(a).forEach(function (key){
console.log(a[key]);
});
it was plain text result with no key-value pairs Here is an example
var fruits = {
apple: "fruits/apple.png",
banana: "fruits/banana.png",
watermelon: "watermelon.jpg",
grapes: "grapes.png",
orange: "orange.jpg"
}
Now i want to get all links in a separated array , but with this code
function linksOfPics(obJect){
Object.keys(obJect).forEach(function(x){
console.log('\"'+obJect[x]+'\"');
});
}
the result of :
linksOfPics(fruits)
"fruits/apple.png"
"fruits/banana.png"
"watermelon.jpg"
"grapes.png"
"orange.jpg"
undefined
I figured out this one which solves what I'm looking for
console.log(Object.values(fruits));
["fruits/apple.png", "fruits/banana.png", "watermelon.jpg", "grapes.png", "orange.jpg"]
Just as a normal js object:
let myhash: IHash = {};
myhash["somestring"] = "value"; //set
let value = myhash["somestring"]; //get
There are two things you're doing with [indexer: string] : string
You can make a general dictionary with explicitly typed fields by using [key: string]: any;
e.g. age
must be number
, while name
must be a string - both are required. Any implicit field can be any type of value.
As an alternative, there is a Map
class:
let map = new Map<object, string>();
let key = new Object();
map.set(key, "value");
map.get(key); // return "value"
This allows you have any Object instance (not just number/string) as the key.
Although its relatively new so you may have to polyfill it if you target old systems.
I'm keeping the following list updated for a couple of years now:
1.0.0.0/24
1.1.1.0/24
1.2.3.0/24
8.6.48.0/21
8.8.8.0/24
8.35.192.0/21
8.35.200.0/21
8.34.216.0/21
8.34.208.0/21
23.236.48.0/20
23.251.128.0/19
63.161.156.0/24
63.166.17.128/25
64.9.224.0/19
64.18.0.0/20
64.233.160.0/19
64.233.171.0/24
65.167.144.64/28
65.170.13.0/28
65.171.1.144/28
66.102.0.0/20
66.102.14.0/24
66.249.64.0/19
66.249.92.0/24
66.249.86.0/23
70.32.128.0/19
72.14.192.0/18
74.125.0.0/16
89.207.224.0/21
104.154.0.0/15
104.132.0.0/14
107.167.160.0/19
107.178.192.0/18
108.59.80.0/20
108.170.192.0/18
108.177.0.0/17
130.211.0.0/16
142.250.0.0/15
144.188.128.0/24
146.148.0.0/17
162.216.148.0/22
162.222.176.0/21
172.253.0.0/16
173.194.0.0/16
173.255.112.0/20
192.158.28.0/22
193.142.125.0/28
199.192.112.0/22
199.223.232.0/21
206.160.135.240/24
207.126.144.0/20
208.21.209.0/24
209.85.128.0/17
216.239.32.0/19
The first benefit of enums, as you have already noticed, is syntax simplicity. But the main point of enums is to provide a well-known set of constants which, by default, form a range and help to perform more comprehensive code analysis through type & value safety checks.
Those attributes of enums help both a programmer and a compiler. For example, let's say you see a function that accepts an integer. What that integer could mean? What kind of values can you pass in? You don't really know right away. But if you see a function that accepts enum, you know very well all possible values you can pass in.
For the compiler, enums help to determine a range of values and unless you assign special values to enum members, they are well ranges from 0 and up. This helps to automatically track down errors in the code through type safety checks and more. For example, compiler may warn you that you don't handle all possible enum values in your switch statement (i.e. when you don't have default
case and handle only one out of N enum values). It also warns you when you convert an arbitrary integer into enum because enum's range of values is less than integer's and that in turn may trigger errors in the function that doesn't really accept an integer. Also, generating a jump table for the switch becomes easier when values are from 0 and up.
This is not only true for Java, but for other languages with a strict type-checking as well. C, C++, D, C# are good examples.
The server.contextPath or server.context-path works if
in pom.xml
Add following dependencies
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- Tomcat/TC server -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
In eclipse, right click on project --> Run as --> Spring Boot App.
Be careful with the "Range(...)" without first qualifying a Worksheet because it will use the currently Active worksheet to make the copy from. It's best to fully qualify both sheets. Please give this a shot (please change "Sheet1" with the copy worksheet):
EDIT: edited for pasting values only based on comments below.
Private Sub CommandButton1_Click()
Application.ScreenUpdating = False
Dim copySheet As Worksheet
Dim pasteSheet As Worksheet
Set copySheet = Worksheets("Sheet1")
Set pasteSheet = Worksheets("Sheet2")
copySheet.Range("A3:E3").Copy
pasteSheet.Cells(Rows.Count, 1).End(xlUp).Offset(1, 0).PasteSpecial xlPasteValues
Application.CutCopyMode = False
Application.ScreenUpdating = True
End Sub
I heard which
is not recommended, so change Best rated answer to this.
$('#formid').on('keyup keypress', function(e) {
if (e.key === 'Enter') {
e.preventDefault();
return false;
}
});
ref. https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/which
You can create fully custom spinner design like as
Step1: In drawable folder make background.xml for a border of the spinner.
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="@android:color/transparent" />
<corners android:radius="5dp" />
<stroke
android:width="1dp"
android:color="@android:color/darker_gray" />
</shape>
Step2: for layout design of spinner use this drop-down icon or any image drop.png
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginRight="3dp"
android:layout_weight=".28"
android:background="@drawable/spinner_border"
android:orientation="horizontal">
<Spinner
android:id="@+id/spinner2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_gravity="center"
android:background="@android:color/transparent"
android:gravity="center"
android:layout_marginLeft="5dp"
android:spinnerMode="dropdown" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_gravity="center"
android:src="@mipmap/drop" />
</RelativeLayout>
Finally looks like below image and it is everywhere clickable in round area and no need to write click Lister for imageView.
Step3: For drop-down design, remove the line from Dropdown ListView and change the background color, Create custom adapter like as
Spinner spinner = (Spinner) findViewById(R.id.spinner1);
String[] years = {"1996","1997","1998","1998"};
ArrayAdapter<CharSequence> langAdapter = new ArrayAdapter<CharSequence>(getActivity(), R.layout.spinner_text, years );
langAdapter.setDropDownViewResource(R.layout.simple_spinner_dropdown);
mSpinner5.setAdapter(langAdapter);
In layout folder create R.layout.spinner_text.xml
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layoutDirection="ltr"
android:id="@android:id/text1"
style="@style/spinnerItemStyle"
android:singleLine="true"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ellipsize="marquee"
android:paddingLeft="2dp"
/>
In layout folder create simple_spinner_dropdown.xml
<?xml version="1.0" encoding="utf-8"?>
<CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/text1"
style="@style/spinnerDropDownItemStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ellipsize="marquee"
android:paddingBottom="5dp"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="5dp"
android:singleLine="true" />
In styles, you can add custom dimensions and height as per your requirement.
<style name="spinnerItemStyle" parent="android:Widget.TextView.SpinnerItem">
</style>
<style name="spinnerDropDownItemStyle" parent="android:TextAppearance.Widget.TextView.SpinnerItem">
</style>
Finally looks like as
According to the requirement, you can change background color and text of drop-down color by changing the background color or text color of simple_spinner_dropdown.xml
Since version 0.18.1 the .loc
method accepts a callable for selection. Together with lambda functions you can create very flexible chainable filters:
import numpy as np
import pandas as pd
df = pd.DataFrame(np.random.randint(0,100,size=(100, 4)), columns=list('ABCD'))
df.loc[lambda df: df.A == 80] # equivalent to df[df.A == 80] but chainable
df.sort_values('A').loc[lambda df: df.A > 80].loc[lambda df: df.B > df.A]
If all you're doing is filtering, you can also omit the .loc
.
Until we get SERVER-863 keeping the field names as short as possible is advisable especially where you have a lot of records.
Depending on your use case, field names can have a huge impact on storage. Cant understand why this is not a higher priority for MongoDb, as this will have a positive impact on all users. If nothing else, we can start being more descriptive with our field names, without thinking twice about bandwidth & storage costs.
Please do vote.
Here is what I use.
Write-Host -NoNewLine 'Press any key to continue...';
$null = $Host.UI.RawUI.ReadKey('NoEcho,IncludeKeyDown');
It helps me:
pg_hba.conf
sudo nano /etc/postgresql/9.x/main/pg_hba.conf
and change this line:
Database administrative login by Unix domain socket
local all postgres md5
to
Database administrative login by Unix domain socket
local all postgres trust
Restart the server
sudo service postgresql restart
Login into psql and set password
psql -U postgres
ALTER USER postgres with password 'new password';
pg_hba.conf
and change this line: Database administrative login by Unix domain socket local all postgres trust
to
Database administrative login by Unix domain socket local all postgres md5
sudo service postgresql restart
In this example the file will be called myShell
First of all we will need to make this file we can just start off by typing the following:
sudo nano myShell
Notice we didn't put the .sh
extension?
That's because when we run it from the terminal we will only need to type myShell
in order to run our command!
Now, in nano the top line MUST be #!/bin/bash
then you may leave a new line before continuing.
For demonstration I will add a basic Hello World!
response
So, I type the following:
echo Hello World!
After that my example should look like this:
#!/bin/bash
echo Hello World!
Now save the file and then run this command:
chmod +x myShell
Now we have made the file executable we can move it to /usr/bin/
by using the following command:
sudo cp myShell /usr/bin/
Congrats! Our command is now done! In the terminal we can type myShell
and it should say Hello World!
Use a subquery:
SELECT * FROM
(
SELECT * FROM users ORDER BY rand() LIMIT 20
) T1
ORDER BY name
The inner query selects 20 users at random and the outer query orders the selected users by name.
You realise that you may be making a rod for your own back for the future. The pwdencrypt() and pwdcompare() are undocumented functions and may not behave the same in future versions of SQL Server.
Why not hash the password using a predictable algorithm such as SHA-2 or better before hitting the DB?
npm update -f
its working form me
npm update -f
it will update all plugins and cli
Here's a setTimeout equivalent, mostly useful when trying to update the User Interface after a delay.
As you may know, updating the user interface can only by done from the UI thread. AsyncTask does that for you by calling its onPostExecute method from that thread.
new AsyncTask<Void, Void, Void>() {
@Override
protected Void doInBackground(Void... params) {
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
}
return null;
}
@Override
protected void onPostExecute(Void result) {
// Update the User Interface
}
}.execute();
I like Pointy's between
function so I wrote a similar one that worked well for my scenario.
/**
* Checks if an integer is within ±x another integer.
* @param {int} op - The integer in question
* @param {int} target - The integer to compare to
* @param {int} range - the range ±
*/
function nearInt(op, target, range) {
return op < target + range && op > target - range;
}
so if you wanted to see if x
was within ±10 of y
:
var x = 100;
var y = 115;
nearInt(x,y,10) = false
I'm using it for detecting a long-press on mobile:
//make sure they haven't moved too much during long press.
if (!nearInt(Last.x,Start.x,5) || !nearInt(Last.y, Start.y,5)) clearTimeout(t);
Answer of @S.A.Parkhid on kotlin.
class FileUtils @Inject constructor(private val context: Context) {
private var selection: String? = null
private var selectionArgs: Array<String>? = null
fun getFile(uri: Uri): File? {
val path = getPath(uri)
return if (path != null) {
File(path)
} else {
null
}
}
fun getPath(uri: Uri): String? {
// check here to KITKAT or new version
return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
getPathForKitKatAndAbove(uri)
} else {
getPathBelowKitKat(uri)
}
}
@SuppressLint("NewApi")
private fun handleExternalStorage(uri: Uri): String? {
val docId = DocumentsContract.getDocumentId(uri)
val split = docId.split(":".toRegex()).toTypedArray()
val fullPath = getPathFromExtSD(split)
return if (fullPath !== "") {
fullPath
} else {
null
}
}
@SuppressLint("NewApi")
private fun handleDownloads(uri: Uri): String? {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
handleDownloads23ApiAndAbove(uri)
} else {
handleDownloadsBelow23Api(uri)
}
return null
}
@SuppressLint("NewApi")
private fun handleDownloadsBelow23Api(uri: Uri): String? {
val id = DocumentsContract.getDocumentId(uri)
if (id.startsWith("raw:")) {
return id.replaceFirst("raw:".toRegex(), "")
}
var contentUri: Uri? = null
try {
contentUri = ContentUris.withAppendedId(
Uri.parse("content://downloads/public_downloads"), id.toLong()
)
} catch (e: NumberFormatException) {
log(e)
}
if (contentUri != null) {
return getDataColumn(contentUri)
}
return null
}
@SuppressLint("NewApi")
private fun handleDownloads23ApiAndAbove(uri: Uri): String? {
var cursor: Cursor? = null
try {
cursor = context.contentResolver
.query(uri, arrayOf(MediaStore.MediaColumns.DISPLAY_NAME), null, null, null)
if (cursor != null && cursor.moveToFirst()) {
val fileName = cursor.getString(0)
val path: String =
Environment.getExternalStorageDirectory().toString() + "/Download/" + fileName
if (path.isNotEmpty()) {
return path
}
}
} finally {
cursor?.close()
}
val id: String = DocumentsContract.getDocumentId(uri)
if (id.isNotEmpty()) {
if (id.startsWith("raw:")) {
return id.replaceFirst("raw:".toRegex(), "")
}
val contentUriPrefixesToTry = arrayOf(
"content://downloads/public_downloads",
"content://downloads/my_downloads"
)
for (contentUriPrefix in contentUriPrefixesToTry) {
return try {
val contentUri = ContentUris.withAppendedId(
Uri.parse(contentUriPrefix),
id.toLong()
)
getDataColumn(contentUri)
} catch (e: NumberFormatException) {
//In Android 8 and Android P the id is not a number
uri.path.orEmpty().replaceFirst("^/document/raw:".toRegex(), "")
.replaceFirst("^raw:".toRegex(), "")
}
}
}
return null
}
@SuppressLint("NewApi")
private fun handleMedia(uri: Uri): String? {
val docId = DocumentsContract.getDocumentId(uri)
val split = docId.split(":".toRegex()).toTypedArray()
val contentUri: Uri? = when (split[0]) {
"image" -> {
MediaStore.Images.Media.EXTERNAL_CONTENT_URI
}
"video" -> {
MediaStore.Video.Media.EXTERNAL_CONTENT_URI
}
"audio" -> {
MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
}
else -> null
}
selection = "_id=?"
selectionArgs = arrayOf(split[1])
return if (contentUri != null) {
getDataColumn(contentUri)
} else {
null
}
}
private fun handleContentScheme(uri: Uri): String? {
if (isGooglePhotosUri(uri)) {
return uri.lastPathSegment
}
if (isGoogleDriveUri(uri)) {
return getDriveFilePath(uri)
}
return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
copyFileToInternalStorage(uri, "userfiles")
} else {
getDataColumn(uri)
}
}
@SuppressLint("NewApi")
private fun getPathForKitKatAndAbove(uri: Uri): String? {
return when {
// ExternalStorageProvider
isExternalStorageDocument(uri) -> handleExternalStorage(uri)
// DownloadsProvider
isDownloadsDocument(uri) -> handleDownloads(uri)
// MediaProvider
isMediaDocument(uri) -> handleMedia(uri)
//GoogleDriveProvider
isGoogleDriveUri(uri) -> getDriveFilePath(uri)
//WhatsAppProvider
isWhatsAppFile(uri) -> getFilePathForWhatsApp(uri)
//ContentScheme
"content".equals(uri.scheme, ignoreCase = true) -> handleContentScheme(uri)
//FileScheme
"file".equals(uri.scheme, ignoreCase = true) -> uri.path
else -> null
}
}
private fun getPathBelowKitKat(uri: Uri): String? {
if (isWhatsAppFile(uri)) {
return getFilePathForWhatsApp(uri)
}
if ("content".equals(uri.scheme, ignoreCase = true)) {
val projection = arrayOf(
MediaStore.Images.Media.DATA
)
var cursor: Cursor? = null
try {
cursor = context.contentResolver
.query(uri, projection, selection, selectionArgs, null)
val columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA)
if (cursor.moveToFirst()) {
return cursor.getString(columnIndex)
}
} catch (e: IOException) {
log(e)
} finally {
cursor?.close()
}
}
return null
}
private fun fileExists(filePath: String): Boolean {
val file = File(filePath)
return file.exists()
}
private fun getPathFromExtSD(pathData: Array<String>): String {
val type = pathData[0]
val relativePath = "/" + pathData[1]
var fullPath: String
// on my Sony devices (4.4.4 & 5.1.1), `type` is a dynamic string
// something like "71F8-2C0A", some kind of unique id per storage
// don't know any API that can get the root path of that storage based on its id.
//
// so no "primary" type, but let the check here for other devices
if ("primary".equals(type, ignoreCase = true)) {
fullPath = Environment.getExternalStorageDirectory().toString() + relativePath
if (fileExists(fullPath)) {
return fullPath
}
}
// Environment.isExternalStorageRemovable() is `true` for external and internal storage
// so we cannot relay on it.
//
// instead, for each possible path, check if file exists
// we'll start with secondary storage as this could be our (physically) removable sd card
fullPath = System.getenv("SECONDARY_STORAGE").orEmpty() + relativePath
if (fileExists(fullPath)) {
return fullPath
}
fullPath = System.getenv("EXTERNAL_STORAGE").orEmpty() + relativePath
return if (fileExists(fullPath)) {
fullPath
} else fullPath
}
private fun getDriveFilePath(uri: Uri): String? {
context.contentResolver.query(
uri, null, null, null, null
)?.use { cursor ->
/*
* Get the column indexes of the data in the Cursor,
* * move to the first row in the Cursor, get the data,
* * and display it.
* */
val nameIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
cursor.moveToFirst()
val name = cursor.getString(nameIndex)
val file = File(context.cacheDir, name)
try {
val inputStream = context.contentResolver.openInputStream(uri)!!
val outputStream = FileOutputStream(file)
val bytesAvailable = inputStream.available()
val bufferSize = min(bytesAvailable, MAX_BUFFER_SIZE)
val buffers = ByteArray(bufferSize)
var read: Int
while (inputStream.read(buffers).also { read = it } != -1) {
outputStream.write(buffers, 0, read)
}
inputStream.close()
outputStream.close()
} catch (e: IOException) {
log(e)
} finally {
cursor.close()
}
return file.path
}
return null
}
/***
* Used for Android Q+
* @param uri
* @param newDirName if you want to create a directory, you can set this variable
* @return
*/
private fun copyFileToInternalStorage(uri: Uri, newDirName: String): String? {
context.contentResolver.query(
uri, arrayOf(OpenableColumns.DISPLAY_NAME, OpenableColumns.SIZE), null, null, null
)?.use { cursor ->
/*
* Get the column indexes of the data in the Cursor,
* * move to the first row in the Cursor, get the data,
* * and display it.
* */
val nameIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
cursor.moveToFirst()
val name = cursor.getString(nameIndex)
val output: File = if (newDirName != "") {
val dir = File(context.filesDir.toString() + "/" + newDirName)
if (!dir.exists()) {
dir.mkdir()
}
File(context.filesDir.toString() + "/" + newDirName + "/" + name)
} else {
File(context.filesDir.toString() + "/" + name)
}
try {
val inputStream = context.contentResolver.openInputStream(uri) ?: return null
val outputStream = FileOutputStream(output)
var read: Int
val buffers = ByteArray(BUFFER_SIZE)
while (inputStream.read(buffers).also { read = it } != -1) {
outputStream.write(buffers, 0, read)
}
inputStream.close()
outputStream.close()
} catch (e: IOException) {
log(e)
} finally {
cursor.close()
}
return output.path
}
return null
}
private fun getFilePathForWhatsApp(uri: Uri): String? {
return copyFileToInternalStorage(uri, "whatsapp")
}
private fun getDataColumn(uri: Uri): String? {
var cursor: Cursor? = null
val column = "_data"
val projection = arrayOf(column)
try {
cursor = context.contentResolver.query(
uri, projection,
selection, selectionArgs, null
)
if (cursor != null && cursor.moveToFirst()) {
val index = cursor.getColumnIndexOrThrow(column)
return cursor.getString(index)
}
} finally {
cursor?.close()
}
return null
}
private fun isExternalStorageDocument(uri: Uri): Boolean {
return EXTERNAL_STORAGE_CONTENT == uri.authority
}
private fun isDownloadsDocument(uri: Uri): Boolean {
return DOWNLOAD_DOCUMENT_CONTENT == uri.authority
}
private fun isMediaDocument(uri: Uri): Boolean {
return MEDIA_DOCUMENT_CONTENT == uri.authority
}
private fun isGooglePhotosUri(uri: Uri): Boolean {
return GOOGLE_PHOTOS_CONTENT == uri.authority
}
private fun isWhatsAppFile(uri: Uri): Boolean {
return WHATS_APP_CONTENT == uri.authority
}
private fun isGoogleDriveUri(uri: Uri): Boolean {
return GOOGLE_DRIVE_CONTENT == uri.authority || "com.google.android.apps.docs.storage.legacy" == uri.authority
}
companion object {
private const val BUFFER_SIZE = 1024
private const val MAX_BUFFER_SIZE = 1024 * 1024
private const val GOOGLE_DRIVE_CONTENT = "com.google.android.apps.docs.storage"
private const val WHATS_APP_CONTENT = "com.whatsapp.provider.media"
private const val GOOGLE_PHOTOS_CONTENT = "com.google.android.apps.photos.content"
private const val MEDIA_DOCUMENT_CONTENT = "com.android.providers.media.documents"
private const val DOWNLOAD_DOCUMENT_CONTENT = "com.android.providers.downloads.documents"
private const val EXTERNAL_STORAGE_CONTENT = "com.android.externalstorage.documents"
}
}
Assuming you are using debian linux (I'm using Linux mint 12, problem was on Ubuntu 12.04.1 LTS server I ssh'ed into.)
I suggest taking @dkamins advice and making sure you have mcrypt installed and active on your php5 install. Use "sudo apt-get install php5-mcrypt" to install. My notes below.
Using PHP version PHP Version 5.3.10-1ubuntu3.4
, if you open phpinfo() as suggested by @John Conde, which you do by creating test file on web server (e.g. create status page testphp.php with just the contents "" anywhere accessible on the server via browser)
I found no presence of enabled or disabled status on the status page when opened in browser. When I then opened the php.ini file, mentioned by @Anthony Forloney, thinking to uncomment ;extension=php_mcrypt.dll to extension=php_mcrypt.dll
I toggled that back and forth and restarted Apache (I'm running Apache2 and you can restart in my setup with sudo /etc/init.d/apache2 restart
or when you are in that directory just sudo restart
I believe)
with change and without change but all no go. I took @dkamins advice and went to install the package with "sudo apt-get install php5-mcrypt" and then restarted apache as above. Then my error was gone and my application worked fine.
The move
instruction copies a value from one register to another. The li
instruction loads a specific numeric value into that register.
For the specific case of zero, you can use either the constant zero or the zero register to get that:
move $s0, $zero
li $s0, 0
There's no register that generates a value other than zero, though, so you'd have to use li
if you wanted some other number, like:
li $s0, 12345678
This is, I believe, a general solution, though I tested it using IBM Informix Dynamic Server 11.50.FC3. The following query:
SELECT grade,
ROUND(100.0 * grade_sum / (SELECT COUNT(*) FROM grades), 2) AS pct_of_grades
FROM (SELECT grade, COUNT(*) AS grade_sum
FROM grades
GROUP BY grade
)
ORDER BY grade;
gives the following output on the test data shown below the horizontal rule. The ROUND
function may be DBMS-specific, but the rest (probably) is not. (Note that I changed 100 to 100.0 to ensure that the calculation occurs using non-integer - DECIMAL, NUMERIC - arithmetic; see the comments, and thanks to Thunder.)
grade pct_of_grades
CHAR(1) DECIMAL(32,2)
A 32.26
B 16.13
C 12.90
D 12.90
E 9.68
F 16.13
CREATE TABLE grades
(
id VARCHAR(10) NOT NULL,
grade CHAR(1) NOT NULL CHECK (grade MATCHES '[ABCDEF]')
);
INSERT INTO grades VALUES('1001', 'A');
INSERT INTO grades VALUES('1002', 'B');
INSERT INTO grades VALUES('1003', 'F');
INSERT INTO grades VALUES('1004', 'C');
INSERT INTO grades VALUES('1005', 'D');
INSERT INTO grades VALUES('1006', 'A');
INSERT INTO grades VALUES('1007', 'F');
INSERT INTO grades VALUES('1008', 'C');
INSERT INTO grades VALUES('1009', 'A');
INSERT INTO grades VALUES('1010', 'E');
INSERT INTO grades VALUES('1001', 'A');
INSERT INTO grades VALUES('1012', 'F');
INSERT INTO grades VALUES('1013', 'D');
INSERT INTO grades VALUES('1014', 'B');
INSERT INTO grades VALUES('1015', 'E');
INSERT INTO grades VALUES('1016', 'A');
INSERT INTO grades VALUES('1017', 'F');
INSERT INTO grades VALUES('1018', 'B');
INSERT INTO grades VALUES('1019', 'C');
INSERT INTO grades VALUES('1020', 'A');
INSERT INTO grades VALUES('1021', 'A');
INSERT INTO grades VALUES('1022', 'E');
INSERT INTO grades VALUES('1023', 'D');
INSERT INTO grades VALUES('1024', 'B');
INSERT INTO grades VALUES('1025', 'A');
INSERT INTO grades VALUES('1026', 'A');
INSERT INTO grades VALUES('1027', 'D');
INSERT INTO grades VALUES('1028', 'B');
INSERT INTO grades VALUES('1029', 'A');
INSERT INTO grades VALUES('1030', 'C');
INSERT INTO grades VALUES('1031', 'F');
In Ruby 1.9.2 and above they added a .to_date function to DateTime:
http://ruby-doc.org/stdlib-1.9.2/libdoc/date/rdoc/DateTime.html#method-i-to_date
This instance method doesn't appear to be present in earlier versions like 1.8.7.
"Headers already sent" means that your PHP script already sent the HTTP headers, and as such it can't make modifications to them now.
Check that you don't send ANY content before calling session_start
. Better yet, just make session_start
the first thing you do in your PHP file (so put it at the absolute beginning, before all HTML etc).
I may be late but still...
This answer is based on removing and adding views dynamically
To disable scrolling:
View child = scoll.getChildAt(0);// since scrollView can only have one direct child
ViewGroup parent = (ViewGroup) scroll.getParent();
scroll.removeView(child); // remove child from scrollview
parent.addView(child,parent.indexOfChild(scroll));// add scroll child at the position of scrollview
parent.removeView(scroll);// remove scrollView from parent
To enable ScrollView just reverse the process
instead of os.walk
, just use os.listdir
long
can only take string convertibles which can end in a base 10 numeral. So, the decimal is causing the harm. What you can do is, float
the value before calling the long
. If your program is on Python 2.x where int and long difference matters, and you are sure you are not using large integers, you could have just been fine with using int
to provide the key as well.
So, the answer is long(float('234.89'))
or it could just be int(float('234.89'))
if you are not using large integers. Also note that this difference does not arise in Python 3, because int is upgraded to long by default. All integers are long in python3 and call to covert is just int
The Basics:
String
is an immutable class, it can't be changed.
StringBuilder
is a mutable class that can be appended to, characters replaced or removed and ultimately converted to a String
StringBuffer
is the original synchronized version of StringBuilder
You should prefer StringBuilder
in all cases where you have only a single thread accessing your object.
The Details:
Also note that StringBuilder/Buffers
aren't magic, they just use an Array as a backing object and that Array has to be re-allocated when ever it gets full. Be sure and create your StringBuilder/Buffer
objects large enough originally where they don't have to be constantly re-sized every time .append()
gets called.
The re-sizing can get very degenerate. It basically re-sizes the backing Array to 2 times its current size every time it needs to be expanded. This can result in large amounts of RAM getting allocated and not used when StringBuilder/Buffer
classes start to grow large.
In Java String x = "A" + "B";
uses a StringBuilder
behind the scenes. So for simple cases there is no benefit of declaring your own. But if you are building String
objects that are large, say less than 4k, then declaring StringBuilder sb = StringBuilder(4096);
is much more efficient than concatenation or using the default constructor which is only 16 characters. If your String
is going to be less than 10k then initialize it with the constructor to 10k to be safe. But if it is initialize to 10k then you write 1 character more than 10k, it will get re-allocated and copied to a 20k array. So initializing high is better than to low.
In the auto re-size case, at the 17th character the backing Array gets re-allocated and copied to 32 characters, at the 33th character this happens again and you get to re-allocated and copy the Array into 64 characters. You can see how this degenerates to lots of re-allocations and copies which is what you really are trying to avoid using StringBuilder/Buffer
in the first place.
This is from the JDK 6 Source code for AbstractStringBuilder
void expandCapacity(int minimumCapacity) {
int newCapacity = (value.length + 1) * 2;
if (newCapacity < 0) {
newCapacity = Integer.MAX_VALUE;
} else if (minimumCapacity > newCapacity) {
newCapacity = minimumCapacity;
}
value = Arrays.copyOf(value, newCapacity);
}
A best practice is to initialize the StringBuilder/Buffer
a little bit larger than you think you are going to need if you don't know right off hand how big the String
will be but you can guess. One allocation of slightly more memory than you need is going to be better than lots of re-allocations and copies.
Also beware of initializing a StringBuilder/Buffer
with a String
as that will only allocated the size of the String + 16 characters, which in most cases will just start the degenerate re-allocation and copy cycle that you are trying to avoid. The following is straight from the Java 6 source code.
public StringBuilder(String str) {
super(str.length() + 16);
append(str);
}
If you by chance do end up with an instance of StringBuilder/Buffer
that you didn't create and can't control the constructor that is called, there is a way to avoid the degenerate re-allocate and copy behavior. Call .ensureCapacity()
with the size you want to ensure your resulting String
will fit into.
The Alternatives:
Just as a note, if you are doing really heavy String
building and manipulation, there is a much more performance oriented alternative called Ropes.
Another alternative, is to create a StringList
implemenation by sub-classing ArrayList<String>
, and adding counters to track the number of characters on every .append()
and other mutation operations of the list, then override .toString()
to create a StringBuilder
of the exact size you need and loop through the list and build the output, you can even make that StringBuilder
an instance variable and 'cache' the results of .toString()
and only have to re-generate it when something changes.
Also don't forget about String.format()
when building fixed formatted output, which can be optimized by the compiler as they make it better.
Try this instead:
$journalName = preg_replace('/\s+/', '_', $journalName);
Explanation: you are most likely seeing whitespace, not just plain spaces (there is a difference).
List<ObjectC> _list_DF_BW_ANB = new List<ObjectC>();
List<ObjectA> _listA = new List<ObjectA>();
List<ObjectB> _listB = new List<ObjectB>();
foreach (var itemB in _listB )
{
var flat = 0;
foreach(var itemA in _listA )
{
if(itemA.ProductId==itemB.ProductId)
{
flat = 1;
break;
}
}
if (flat == 0)
{
_list_DF_BW_ANB.Add(itemB);
}
}
The problem is that readlines
is a list of strings, each of which is a line of filename
. Perhaps you meant:
for line in readlines:
Type = line.split(",")
x = Type[1]
y = Type[2]
print(x,y)
Pattern is wrong
String date="Sat Jun 01 12:53:10 IST 2013";
SimpleDateFormat sdf=new SimpleDateFormat("E MMM dd hh:mm:ss Z yyyy");
Date currentdate;
currentdate=sdf.parse(date);
System.out.println(currentdate);
I had the same issue with SQL Server 2014 locally installed named instance. Connecting using the FQDN\InstanceName
would fail, while connecting using only my hostname\InstanceName
worked. For example: connecting using mycomputername\sql2014
worked, but using mycomputername.mydomain.org\sql2014
did not. DNS resolved correctly, TCP/IP was enabled within SQL Configuration Manager, Windows Firewall rules added (and then turned the firewall off for testing to ensure it wasn't blocking anything), but none of those fixed the problem.
Finally, I had to start the "SQL Server Browser" service on the SQL Server and that fixed the connectivity issue.
I had never realized that the SQL Server Browser service actually assisted the SQL Server in making connections; I was under the impression that it simply helped populate the dropdowns when you clicked "browse for more" servers to connect to, but it actually helps align client requests with the correct port # to use, if the port # is not explicitly assigned (similar to how website bindings help alleviate the same issue on an IIS web server that hosts multiple websites).
This connect item is what gave me the clue about the SQL Server Browser service: https://connect.microsoft.com/SQLServer/feedback/details/589901/unable-to-connect-on-localhost-using-fqdn-machine-name
- when you use wstst05\sqlexpress as a server name, the client code separates the machine name from the instance name and the wstst05 is compared against the netbios name. I see no problem for them to match and the connection is considered local. From there, we retrieve the needed information WITHOUT contacting SQL Browser and connect to the SQL instance via Shared Memory without any problem.
- when you use wstst05.capatest.local\sqlexpress, the client code fails the comparison of the name (wstst05.capatest.local) to the netbios name (wstst05) and considers the connection "remote". This is by design and we will definitely consider improving this in the future. Anyway, due to considering the connection remote and the fact that it is a named instance, client decides that it needs to use SQLBrowser for name resolution. It attempts to contact SQL Browser on wstst05.capatest.local (UDP port 1434) and apparently that part fails. Hence the error you get.
The reason for the "SQL Server Browser" service from TechNet (emphasis added by me): https://technet.microsoft.com/en-us/library/ms181087(v=sql.120).aspx
From the "Using SQL Server Browser" section:
If the SQL Server Browser service is not running, you are still able to connect to SQL Server if you provide the correct port number or named pipe. For instance, you can connect to the default instance of SQL Server with TCP/IP if it is running on port 1433. However, if the SQL Server Browser service is not running, the following connections do not work:
- Any component that tries to connect to a named instance without fully specifying all the parameters (such as the TCP/IP port or named pipe).
- Any component that generates or passes server\instance information that could later be used by other components to reconnect.
- Connecting to a named instance without providing the port number or pipe.
- DAC to a named instance or the default instance if not using TCP/IP port 1433.
- The OLAP redirector service.
- Enumerating servers in SQL Server Management Studio, Enterprise Manager, or Query Analyzer.
If you are using SQL Server in a client-server scenario (for example, when your application is accessing SQL Server across a network), if you stop or disable the SQL Server Browser service, you must assign a specific port number to each instance and write your client application code to always use that port number. This approach has the following problems:
- You must update and maintain client application code to ensure it is connecting to the proper port.
- The port you choose for each instance may be used by another service or application on the server, causing the instance of SQL Server to be unavailable.
And more info from the same article from the "How SQL Server Browser Works" section:
Because only one instance of SQL Server can use a port or pipe, different port numbers and pipe names are assigned for named instances, including SQL Server Express. By default, when enabled, both named instances and SQL Server Express are configured to use dynamic ports, that is, an available port is assigned when SQL Server starts. If you want, a specific port can be assigned to an instance of SQL Server. When connecting, clients can specify a specific port; but if the port is dynamically assigned, the port number can change anytime SQL Server is restarted, so the correct port number is unknown to the client. ... When SQL Server clients request SQL Server resources, the client network library sends a UDP message to the server using port 1434. SQL Server Browser responds with the TCP/IP port or named pipe of the requested instance. The network library on the client application then completes the connection by sending a request to the server using the port or named pipe of the desired instance
As Andrew Brower says, but adding a trim
ALTER PROCEDURE <Name>
(
@PartialName VARCHAR(50) = NULL
)
SELECT Name
FROM <table>
WHERE Name LIKE '%' + LTRIM(RTRIM(@PartialName)) + '%'
It is not possible to do this with just CSS alone, you will need to use Javascript.
<img src="default_image.jpg" id="image" width="100" height="100" alt="" />
<a href="page.html" onmouseover="document.images['image'].src='mouseover.jpg';" onmouseout="document.images['image'].src='default_image.jpg';"/>Text</a>
There are various ways to achieve this. Here are three.
Map<String, String> map = new HashMap<String, String>();
map.put("key1", "value1");
map.put("key2", "value2");
map.put("key3", "value3");
System.out.println("using entrySet and toString");
for (Entry<String, String> entry : map.entrySet()) {
System.out.println(entry);
}
System.out.println();
System.out.println("using entrySet and manual string creation");
for (Entry<String, String> entry : map.entrySet()) {
System.out.println(entry.getKey() + "=" + entry.getValue());
}
System.out.println();
System.out.println("using keySet");
for (String key : map.keySet()) {
System.out.println(key + "=" + map.get(key));
}
System.out.println();
using entrySet and toString
key1=value1
key2=value2
key3=value3
using entrySet and manual string creation
key1=value1
key2=value2
key3=value3
using keySet
key1=value1
key2=value2
key3=value3
GetLastError returns a numerical error code. To obtain a descriptive error message (e.g., to display to a user), you can call FormatMessage:
// This functions fills a caller-defined character buffer (pBuffer)
// of max length (cchBufferLength) with the human-readable error message
// for a Win32 error code (dwErrorCode).
//
// Returns TRUE if successful, or FALSE otherwise.
// If successful, pBuffer is guaranteed to be NUL-terminated.
// On failure, the contents of pBuffer are undefined.
BOOL GetErrorMessage(DWORD dwErrorCode, LPTSTR pBuffer, DWORD cchBufferLength)
{
if (cchBufferLength == 0)
{
return FALSE;
}
DWORD cchMsg = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, /* (not used with FORMAT_MESSAGE_FROM_SYSTEM) */
dwErrorCode,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
pBuffer,
cchBufferLength,
NULL);
return (cchMsg > 0);
}
In C++, you can simplify the interface considerably by using the std::string class:
#include <Windows.h>
#include <system_error>
#include <memory>
#include <string>
typedef std::basic_string<TCHAR> String;
String GetErrorMessage(DWORD dwErrorCode)
{
LPTSTR psz{ nullptr };
const DWORD cchMsg = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM
| FORMAT_MESSAGE_IGNORE_INSERTS
| FORMAT_MESSAGE_ALLOCATE_BUFFER,
NULL, // (not used with FORMAT_MESSAGE_FROM_SYSTEM)
dwErrorCode,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
reinterpret_cast<LPTSTR>(&psz),
0,
NULL);
if (cchMsg > 0)
{
// Assign buffer to smart pointer with custom deleter so that memory gets released
// in case String's c'tor throws an exception.
auto deleter = [](void* p) { ::LocalFree(p); };
std::unique_ptr<TCHAR, decltype(deleter)> ptrBuffer(psz, deleter);
return String(ptrBuffer.get(), cchMsg);
}
else
{
auto error_code{ ::GetLastError() };
throw std::system_error( error_code, std::system_category(),
"Failed to retrieve error message string.");
}
}
NOTE: These functions also work for HRESULT values. Just change the first parameter from DWORD dwErrorCode to HRESULT hResult. The rest of the code can remain unchanged.
FORMAT_MESSAGE_IGNORE_INSERTS
flag. See The importance of the FORMAT_MESSAGE_IGNORE_INSERTS flag for more information.Using Pry you just need to add the following code to your ~/.pryrc:
require "awesome_print"
AwesomePrint.pry!
A complete and simple method in objective C for checking correct pattern for latitude and longitude is:
-( BOOL )textIsValidValue:(NSString*) searchedString
{
NSRange searchedRange = NSMakeRange(0, [searchedString length]);
NSError *error = nil;
NSString *pattern = @"^[-+]?([1-8]?\\d(\\.\\d+)?|90(\\.0+)?),\\s*[-+]?(180(\\.0+)?|((1[0-7]\\d)|([1-9]?\\d))(\\.\\d+)?)$";
NSRegularExpression* regex = [NSRegularExpression regularExpressionWithPattern: pattern options:0 error:&error];
NSTextCheckingResult *match = [regex firstMatchInString:searchedString options:0 range: searchedRange];
return match ? YES : NO;
}
where searchedString is the input that user would enter in the respective textfield.
write this
<meta-data
android:name="com.google.firebase.messaging.default_notification_icon"
android:resource="@drawable/ic_notification" />
right down <application.....>
I am not able to add a comment to M. Kiewisch since I do not have enough reputation points (only have 41 but need more than 50 to comment).
Anyway, just want to point out that M. Kiewisch solution does not work as is and may need more tweaking. Consider for example
>>> df = pd.DataFrame({'a': [1, 2, 3, 5], 'b': [4, np.NaN, 6, 4]})
>>> df
a b
0 1 4.0
1 2 NaN
2 3 6.0
3 5 4.0
>>> df.groupby(['b']).sum()
a
b
4.0 6
6.0 3
>>> df.astype(str).groupby(['b']).sum()
a
b
4.0 15
6.0 3
nan 2
which shows that for group b=4.0, the corresponding value is 15 instead of 6. Here it is just concatenating 1 and 5 as strings instead of adding it as numbers.
An easy example would be something like:
writer = csv.writer(open("filename.csv", "wb")) String[] entries = "first#second#third".split("#"); writer.writerows(entries) writer.close()
You can truncate all information after the month using date_trunc(text, timestamp)
:
select date_trunc('month',created_at)::date as date
from orders
order by date DESC;
created_at = '2019-12-16 18:28:13'
Output 1:
date_trunc('day',created_at)
// 2019-12-16 00:00:00
Output 2:
date_trunc('day',created_at)::date
// 2019-12-16
Output 3:
date_trunc('month',created_at)::date
// 2019-12-01
Output 4:
date_trunc('year',created_at)::date
// 2019-01-01
$where = "name='Joe' AND status='boss' OR status='active'";
$this->db->where($where);
See this article: http://www.unilogica.com/mysql-innodb-recovery/ (It's in portuguese)
Are explained how to use innodb_force_recovery and innodb_file_per_table. I discovered this after need to recovery a crashed database with a single ibdata1.
Using innodb_file_per_table, all tables in InnoDB will create a separated table file, like MyISAM.
if you are not able to find the rails process to kill it might actually be not running. Delete the tmp folder and its sub-folders from where you are running the rails server and try again.
Private Sub DownloadFile(relativeUrl As String, destinationPath As String, name As String)
Try
destinationPath = Replace(destinationPath + "\" + name, "\\", "\")
Dim fi As FileInformation = Microsoft.SharePoint.Client.File.OpenBinaryDirect(Me.context, relativeUrl)
Dim down As Stream = System.IO.File.Create(destinationPath)
Dim a As Integer = fi.Stream.ReadByte()
While a <> -1
down.WriteByte(CType(a, Byte))
a = fi.Stream.ReadByte()
End While
Catch ex As Exception
ToLog(Type.ERROR, ex.Message)
End Try
End Sub
Other answers already cover how to filter by an address, but if you would like to exclude an address use
ip.addr < 192.168.0.11
You can use android:largeHeap="true" to request a larger heap size, but this will not work on any pre Honeycomb devices. On pre 2.3 devices, you can use the VMRuntime class, but this will not work on Gingerbread and above.
The only way to have as large a limit as possible is to do memory intensive tasks via the NDK, as the NDK does not impose memory limits like the SDK.
Alternatively, you could only load the part of the model that is currently in view, and load the rest as you need it, while removing the unused parts from memory. However, this may not be possible, depending on your app.
This might happen when you attempt to grant all privileges on all tables to another user, because the mysql.users table is considered off-limits for a user other than root.
The following however, should work:
GRANT ALL PRIVILEGES ON `%`.* TO '[user]'@'[hostname]' IDENTIFIED BY '[password]' WITH GRANT OPTION;
Note that we use `%`.* instead of *.*
npm outdated
npm update
git commit package-lock.json
npm install -g npm-check-updates
npm-check-updates
npm shrinkwrap
git commit package-lock.json
Be sure to shrinkwrap your deps, or you may wind up with a dead project. I pulled out a project the other day and it wouldn't run because my deps were all out of date/updated/a mess. If I'd shrinkwrapped, npm would have installed exactly what I needed.
For the curious who make it this far, here is what I recommend:
npm-check-updates
or npm outdated
to suggest the latest versions.# `outdated` is part of newer npm versions (2+)
$ npm outdated
# If you agree, update.
$ npm update
# OR
# Install and use the `npm-check-updates` package.
$ npm install -g npm-check-updates
# Then check your project
$ npm-check-updates
# If you agree, update package.json.
$ npm-check-updates -u
###Then do a clean install (w/o the rm I got some dependency warnings)
$ rm -rf node_modules
$ npm install
npm-shrinkwrap.json
with npm shrinkwrap
$ rm npm-shrinkwrap.json
$ npm shrinkwrap
npm install
will now use exact versions in npm-shrinkwrap.json
If you check npm-shrinkwrap.json
into git, all installs will use the exact same versions.
This is a way to transition out of development (all updates, all the time) to production (nobody touch nothing).
Wow so many answers, cURL devs definitely left it to us as a home exercise :) Ok here is my take - a script that makes the cURL working as it's supposed to be, i.e.:
Save it as curl-wrapper.sh
:
#!/bin/bash
output=$(curl -w "\n%{http_code}" "$@")
res=$?
if [[ "$res" != "0" ]]; then
echo -e "$output"
exit $res
fi
if [[ $output =~ [^0-9]([0-9]+)$ ]]; then
httpCode=${BASH_REMATCH[1]}
body=${output:0:-${#httpCode}}
echo -e "$body"
if (($httpCode < 200 || $httpCode >= 300)); then
# Remove this is you want to have pure output even in
# case of failure:
echo
echo "Failure HTTP response code: ${httpCode}"
exit 1
fi
else
echo -e "$output"
echo
echo "Cannot get the HTTP return code"
exit 1
fi
So then it's just business as usual, but instead of curl
do ./curl-wrapper.sh
:
So when the result falls in 200-299 range:
./curl-wrapper.sh www.google.com
# ...the same output as pure curl would return...
echo $?
# 0
And when the result is out of in 200-299 range:
./curl-wrapper.sh www.google.com/no-such-page
# ...the same output as pure curl would return - plus the line
# below with the failed HTTP code, this line can be removed if needed:
#
# Failure HTTP response code: 404
echo $?
# 1
Just do not pass "-w|--write-out" argument since that's what added inside the script
In Django 1.7 this is even easier with the built-in JsonResponse.
https://docs.djangoproject.com/en/dev/ref/request-response/#jsonresponse-objects
# import it
from django.http import JsonResponse
def my_view(request):
# do something with the your data
data = {}
# just return a JsonResponse
return JsonResponse(data)
To get the Unix time (seconds since January 1, 1970):
>>> import datetime, time
>>> t = datetime.datetime(2011, 10, 21, 0, 0)
>>> time.mktime(t.timetuple())
1319148000.0
You need to escape the braces:
git stash pop stash@\{1\}
With ES 6 arrow function
let someArray = [
{name:"Kristian", lines:"2,5,10"},
{name:"John", lines:"1,19,26,96"}
];
let arrayToRemove={name:"Kristian", lines:"2,5,10"};
someArray=someArray.filter((e)=>e.name !=arrayToRemove.name && e.lines!= arrayToRemove.lines)
@user544079
Even though it is very old and irrelevant now, I am replying to help people like me! it should be like this:
<form method="post" action="mailto:$emailID?subject=$MySubject &message= $MyMessageText">
Here $emailID, $MySubject, $MyMessageText are variables which you assign from a FORM or a DATABASE Table or just you can assign values in your code itself. Alternatively you can put the code like this (normally it is not used):
<form method="post" action="mailto:[email protected]?subject=New Registration Alert &message= New Registration requires your approval">
Many possibilities...
You know how to generate randomly an integer right? You can thus generate a char from it... (ex 65 -> A)
It depends what you need, the level of randomness, the security involved... but for a school project i guess getting UUID substring would fit :)
I realize this is an old thread, but @alex 's answer needs to be marked as the correct answer
element.getBoundingClientRect()
is an exact match to jQuery's $(element).offset()
And it's compatible with IE4+ ... https://developer.mozilla.org/en-US/docs/Web/API/Element.getBoundingClientRect
The first thing you should make sure is that your static library has all architectures. When you do a lipo -info myStaticLibrary.a
on terminal - you should see armv7 armv7s i386 x86_64 arm64
architectures for your fat binary.
To accomplish that, I am assuming that you're making a universal binary - add the following to your architecture settings of static library project -
Standard architectures (including 64-bit) (armv7, armv7s, arm64)
of the static library project.$ARCHS_STANDARD
now includes 64-bit. You can also do $(ARCHS_STANDARD)
and armv7s
. Check lipo -info
without it, and you'll figure out the missing architectures. Here's the screenshot for all architectures -For your reference implementation (project using static library). The default settings should work fine -
Update 12/03/14 Xcode 6 Standard architectures exclude armv7s.
So, armv7s
is not needed? Yes. It seems that the general differences between armv7 and armv7s instruction sets are minor. So if you choose not to include armv7s, the targeted armv7 machine code still runs fine on 32 bit A6 devices, and hardly one will notice performance gap. Source
If there is a smarter way for Xcode 6.1+ (iOS 8.1 and above) - please share.
If you have access to manipulate the code of the site you are loading, the following should provide a comprehensive method to updating the height of the iframe
container anytime the height of the framed content changes.
Add the following code to the pages you are loading (perhaps in a header). This code sends a message containing the height of the HTML container any time the DOM is updated (if you're lazy loading) or the window is resized (when the user modifies the browser).
window.addEventListener("load", function(){
if(window.self === window.top) return; // if w.self === w.top, we are not in an iframe
send_height_to_parent_function = function(){
var height = document.getElementsByTagName("html")[0].clientHeight;
//console.log("Sending height as " + height + "px");
parent.postMessage({"height" : height }, "*");
}
// send message to parent about height updates
send_height_to_parent_function(); //whenever the page is loaded
window.addEventListener("resize", send_height_to_parent_function); // whenever the page is resized
var observer = new MutationObserver(send_height_to_parent_function); // whenever DOM changes PT1
var config = { attributes: true, childList: true, characterData: true, subtree:true}; // PT2
observer.observe(window.document, config); // PT3
});
Add the following code to the page that the iframe is stored on. This will update the height of the iframe, given that the message came from the page that that iframe loads.
<script>
window.addEventListener("message", function(e){
var this_frame = document.getElementById("healthy_behavior_iframe");
if (this_frame.contentWindow === e.source) {
this_frame.height = e.data.height + "px";
this_frame.style.height = e.data.height + "px";
}
})
</script>
You can use the backtick operator:
& "C:\Program Files\IIS\Microsoft Web Deploy\msdeploy.exe" `
-verb:sync `
-source:contentPath="c:\workspace\xxx\master\Build\_PublishedWebsites\xxx.Web" `
-dest:contentPath="c:\websites\xxx\wwwroot\,computerName=192.168.1.1,username=administrator,password=xxx"
That's still a little too long for my taste, so I'd use some well-named variables:
$msdeployPath = "C:\Program Files\IIS\Microsoft Web Deploy\msdeploy.exe"
$verbArg = '-verb:sync'
$sourceArg = '-source:contentPath="c:\workspace\xxx\master\Build\_PublishedWebsites\xxx.Web"'
$destArg = '-dest:contentPath="c:\websites\xxx\wwwroot\,computerName=192.168.1.1,username=administrator,password=xxx"'
& $msdeployPath $verbArg $sourceArg $destArg
The marked answer is fine, but it makes the image stretched. In my case I had a small tile image that I wanted repeat not stretch. And the following code was the best way for me to solve the black background issue:
UIImage *tileImage = [UIImage imageNamed:@"myTileImage"];
UIColor *color = [UIColor colorWithPatternImage:tileImage];
UIView *backgroundView = [[UIView alloc] initWithFrame:self.view.frame];
[backgroundView setBackgroundColor:color];
//backgroundView.alpha = 0.1; //use this if you want to fade it away.
[self.view addSubview:backgroundView];
[self.view sendSubviewToBack:backgroundView];
The node REPL has a built-in solution for overriding how objects are displayed, see here.
The REPL module internally uses
util.inspect()
, when printing values. However,util.inspect
delegates the call to the object'sinspect()
function, if it has one.
I submit that it is better to leave your data stacked as it is:
df = pandas.DataFrame(data, columns=['R_Number', 'C_Number', 'Avg', 'Std'])
# Possibly also this if these can always be the indexes:
# df = df.set_index(['R_Number', 'C_Number'])
Then it's a bit more intuitive to say
df.set_index(['R_Number', 'C_Number']).Avg.unstack(level=1)
This way it is implicit that you're seeking to reshape the averages, or the standard deviations. Whereas, just using pivot
, it's purely based on column convention as to what semantic entity it is that you are reshaping.
Try this one.
ALTER TABLE tb_TableName
ALTER COLUMN Record_Status VARCHAR(20) NOT NULL
ALTER TABLE tb_TableName
ADD CONSTRAINT DEF_Name DEFAULT '' FOR Record_Status
This is a well-known issue and based on this answer you could add setLenient
:
Gson gson = new GsonBuilder()
.setLenient()
.create();
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.client(client)
.addConverterFactory(GsonConverterFactory.create(gson))
.build();
Now, if you add this to your retrofit, it gives you another error:
com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1 path $
This is another well-known error you can find answer here (this error means that your server response is not well-formatted); So change server response to return something:
{
android:[
{ ver:"1.5", name:"Cupcace", api:"Api Level 3" }
...
]
}
For better comprehension, compare your response with Github api.
Suggestion: to find out what's going on to your request/response
add HttpLoggingInterceptor
in your retrofit.
Based on this answer your ServiceHelper would be:
private ServiceHelper() {
httpClient = new OkHttpClient.Builder();
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
httpClient.interceptors().add(interceptor);
Retrofit retrofit = createAdapter().build();
service = retrofit.create(IService.class);
}
Also don't forget to add:
compile 'com.squareup.okhttp3:logging-interceptor:3.3.1'
boolean a = (x < z) && (x == x);
This kind will short-circuit, meaning if (x < z)
evaluates to false then the latter is not evaluated, a
will be false, otherwise &&
will also evaluate (x == x)
.
&
is a bitwise operator, but also a boolean AND operator which does not short-circuit.
You can test them by something as follows (see how many times the method is called in each case):
public static boolean getFalse() {
System.out.println("Method");
return false;
}
public static void main(String[] args) {
if(getFalse() && getFalse()) { }
System.out.println("=============================");
if(getFalse() & getFalse()) { }
}
The session.save(object) returns the id of the object, or you could alternatively call the id getter method after performing a save.
Save() return value:
Serializable save(Object object) throws HibernateException
Returns:
the generated identifier
Getter method example:
UserDetails entity:
@Entity
public class UserDetails {
@Id
@GeneratedValue
private int id;
private String name;
// Constructor, Setters & Getters
}
Logic to test the id's :
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.getTransaction().begin();
UserDetails user1 = new UserDetails("user1");
UserDetails user2 = new UserDetails("user2");
//int userId = (Integer) session.save(user1); // if you want to save the id to some variable
System.out.println("before save : user id's = "+user1.getId() + " , " + user2.getId());
session.save(user1);
session.save(user2);
System.out.println("after save : user id's = "+user1.getId() + " , " + user2.getId());
session.getTransaction().commit();
Output of this code:
before save : user id's = 0 , 0
after save : user id's = 1 , 2
As per this output, you can see that the id's were not set before we save the UserDetails
entity, once you save the entities then Hibernate set's the id's for your objects - user1
and user2
FWIW I had this same issue. Turned out my xsi:schemaLocation entries were incorrect, so I went to the official docs and pasted theirs into mine:
http://docs.spring.io/spring/docs/current/spring-framework-reference/html/transaction.html section 16.5.6
I had to add a couple more but that was ok. Next up is to find out why this fixed the problem...
There are few examples for using JSONP which include error handling.
However, please note that the error-event is not triggered when using JSONP! See: http://api.jquery.com/jQuery.ajax/ or jQuery ajax request using jsonp error
The -H 'Cache-Control: no-cache'
argument is not guaranteed to work because the remote server or any proxy layers in between can ignore it. If it doesn't work, you can do it the old-fashioned way, by adding a unique querystring parameter. Usually, the servers/proxies will think it's a unique URL and not use the cache.
curl "http://www.example.com?foo123"
You have to use a different querystring value every time, though. Otherwise, the server/proxies will match the cache again. To automatically generate a different querystring parameter every time, you can use date +%s
, which will return the seconds since epoch.
curl "http://www.example.com?$(date +%s)"
git fetch && git merge origin/develop
/^([a-zA-Z0-9 _-]+)$/
the above regex allows spaces in side a string and restrict special characters.It Only allows a-z, A-Z, 0-9, Space, Underscore and dash.
In WPF, you use a DispatcherTimer
.
System.Windows.Threading.DispatcherTimer dispatcherTimer = new System.Windows.Threading.DispatcherTimer();
dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);
dispatcherTimer.Interval = new TimeSpan(0,5,0);
dispatcherTimer.Start();
private void dispatcherTimer_Tick(object sender, EventArgs e)
{
// code goes here
}
add a bit more information to @Michal Roharik 's answer.
if your ajax call will return a return url, you should use jquery to change the form action attribute to that url before calling form.submit
ex.
$(form).attr('action', ReturnPath);
form.submitted = false;
form.submit();
Just complementing what Devart said, the below code is not ordering according to the question:
SELECT t1.* FROM messages t1
JOIN (SELECT from_id, MAX(timestamp) timestamp FROM messages GROUP BY from_id) t2
ON t1.from_id = t2.from_id AND t1.timestamp = t2.timestamp;
The "GROUP BY" clause must be in the main query since that we need first reorder the "SOURCE" to get the needed "grouping" so:
SELECT t1.* FROM messages t1
JOIN (SELECT from_id, MAX(timestamp) timestamp FROM messages ORDER BY timestamp DESC) t2
ON t1.from_id = t2.from_id AND t1.timestamp = t2.timestamp GROUP BY t2.timestamp;
Regards,
The fastest solution for big files is always tail|head, provided that the two distances:
S
E
are known. Then, we could use this:
mycount="$E"; (( E > S )) && mycount="+$S"
howmany="$(( endline - startline + 1 ))"
tail -n "$mycount"| head -n "$howmany"
howmany is just the count of lines required.
Some more detail in https://unix.stackexchange.com/a/216614/79743
This is the solution I used after checking all answers
<!-- Base application theme. -->
<style name="AppTheme" parent="@style/Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorAccent">@color/Button_color</item>
<item name="android:editTextStyle">@style/EditTextStyle</item>
<item name="android:typeface">monospace</item>
<item name="android:windowActionBar">true</item>
<item name="colorPrimary">@color/Title_Bar_Color</item>
<item name="android:actionBarStyle">@style/Widget.Styled.ActionBar</item>
<item name="actionBarStyle">@style/Widget.Styled.ActionBar</item>
</style>
<style name="EditTextStyle" parent="Widget.AppCompat.EditText"/>
<style name="Widget.Styled.ActionBar" parent="@style/Widget.AppCompat.Light.ActionBar">
<item name="titleTextStyle">@style/ActionBarTitleText</item>
<item name="android:background">@color/Title_Bar_Color</item>
<item name="background">@color/Title_Bar_Color</item>
<item name="subtitleTextStyle">@style/ActionBarSubTitleText</item>
</style>
<style name="ActionBarTitleText" parent="@style/TextAppearance.AppCompat.Widget.ActionBar.Title">
<item name="android:textColor">@color/solid_white</item>
<item name="android:textSize">12sp</item>
</style>
<style name="ActionBarSubTitleText" parent="@style/TextAppearance.AppCompat.Widget.ActionBar.Subtitle">
<item name="android:textColor">@color/solid_white</item>
<item name="android:textSize">12sp</item>
</style>
Change the required colors it will work
After trying to use the MAVEN_OPTS variable with no luck, I came across this site which worked for me. So all I had to do was add -Xms128m -Xmx1024m to the default VM options and it worked.
To change those in Eclipse, go to Window -> Preferences -> Java -> Installed JREs. Select the checked JRE/JDK and click edit.
It means somewhere in your chain of calls, you tried to access a Property or call a method on an object that was null
.
Given your statement:
img1.ImageUrl = ConfigurationManager
.AppSettings
.Get("Url")
.Replace("###", randomString)
+ Server.UrlEncode(
((System.Web.UI.MobileControls.Form)Page
.FindControl("mobileForm"))
.Title);
I'm guessing either the call to AppSettings.Get("Url")
is returning null because the value isn't found or the call to Page.FindControl("mobileForm")
is returning null because the control isn't found.
You could easily break this out into multiple statements to solve the problem:
var configUrl = ConfigurationManager.AppSettings.Get("Url");
var mobileFormControl = Page.FindControl("mobileForm")
as System.Web.UI.MobileControls.Form;
if(configUrl != null && mobileFormControl != null)
{
img1.ImageUrl = configUrl.Replace("###", randomString) + mobileControl.Title;
}
I'll disagree with The Tin Man here. I regard rbenv as preferable to RVM. rbenv
doesn't interfere drastically with your shell the way RVM does, and it lets you add separate Ruby installations in ordinary folders that you can examine directly. It allows you to compile Ruby yourself. Good outline of the differences here: https://github.com/sstephenson/rbenv/wiki/Why-rbenv%3F
I provide instructions for compiling Ruby 1.9 for rbenv here. Further, more detailed information here. I have used this technique with easy success on Snow Leopard, Lion, and Mountain Lion.
pass the output to str() function and it will remove the convert the unicode output. also by printing the output it will remove the u'' tags from it.
Try umount -f /mnt/share. Works OK with NFS, never tried with cifs.
Also, take a look at autofs, it will mount the share only when accessed, and will unmount it afterworlds.
There is a good tutorial at www.howtoforge.net
Another approach is:
git push --prune origin
WARNING: This will delete all remote branches that do not exist locally. Or more comprehensively,
git push --mirror
will effectively make the remote repository look like the local copy of the repository (local heads, remotes and tags are mirrored on remote).
I ended up using the httpclient-4.3.6:
import org.apache.http.client.utils.URIBuilder;
public static void main (String [] args) {
URIBuilder uri = new URIBuilder();
uri.setScheme("http")
.setHost("www.example.com")
.setPath("/somepage.php")
.setParameter("username", "Hello Günter")
.setParameter("p1", "parameter 1");
System.out.println(uri.toString());
}
Output will be:
http://www.example.com/somepage.php?username=Hello+G%C3%BCnter&p1=paramter+1
Depends what you mean by "table's size". A table doesn't relate to a specific file on the file system. A table will reside on a tablespace (possibly multiple tablespaces if it is partitioned, and possibly multiple tablespaces if you also want to take into account indexes on the table). A tablespace will often have multiple tables in it, and may be spread across multiple files.
If you are estimating how much space you'll need for the table's future growth, then avg_row_len multiplied by the number of rows in the table (or number of rows you expect in the table) will be a good guide. But Oracle will leave some space free on each block, partly to allow for rows to 'grow' if they are updated, partly because it may not be possible to fit another entire row on that block (eg an 8K block would only fit 2 rows of 3K, though that would be an extreme example as 3K is a lot bigger than most row sizes). So BLOCKS (in USER_TABLES) might be a better guide.
But if you had 200,000 rows in a table, deleted half of them, then the table would still 'own' the same number of blocks. It doesn't release them up for other tables to use. Also, blocks are not added to a table individually, but in groups called an 'extent'. So there are generally going to be EMPTY_BLOCKS (also in USER_TABLES) in a table.
div.style.removeProperty('zoom');