Print a string as hex bytes?
The accepted answer gives:
s = "Hello world !!"
":".join("{:02x}".format(ord(c)) for c in s)
returns:
'48:65:6c:6c:6f:20:77:6f:72:6c:64:20:21:21'
The accepted answer works only so long as you use bytes (mostly ascii characters). But if you use unicode, e.g.:
a_string = u"?????? ???!!" # "Prevyet mir", or "Hello World" in Russian.
You need to convert to bytes somehow.
If your terminal doesn't accept these characters, you can decode from UTF-8 or use the names (so you can paste and run the code along with me):
a_string = (
"\N{CYRILLIC CAPITAL LETTER PE}"
"\N{CYRILLIC SMALL LETTER ER}"
"\N{CYRILLIC SMALL LETTER I}"
"\N{CYRILLIC SMALL LETTER VE}"
"\N{CYRILLIC SMALL LETTER IE}"
"\N{CYRILLIC SMALL LETTER TE}"
"\N{SPACE}"
"\N{CYRILLIC SMALL LETTER EM}"
"\N{CYRILLIC SMALL LETTER I}"
"\N{CYRILLIC SMALL LETTER ER}"
"\N{EXCLAMATION MARK}"
"\N{EXCLAMATION MARK}"
)
So we see that:
":".join("{:02x}".format(ord(c)) for c in a_string)
returns
'41f:440:438:432:435:442:20:43c:438:440:21:21'
a poor/unexpected result - these are the code points that combine to make the graphemes we see in Unicode, from the Unicode Consortium - representing languages all over the world. This is not how we actually store this information so it can be interpreted by other sources, though.
To allow another source to use this data, we would usually need to convert to UTF-8 encoding, for example, to save this string in bytes to disk or to publish to html. So we need that encoding to convert the code points to the code units of UTF-8 - in Python 3, ord
is not needed because bytes
are iterables of integers:
>>> ":".join("{:02x}".format(c) for c in a_string.encode('utf-8'))
'd0:9f:d1:80:d0:b8:d0:b2:d0:b5:d1:82:20:d0:bc:d0:b8:d1:80:21:21'
Or perhaps more elegantly, using the new f-strings (only available in Python 3):
>>> ":".join(f'{c:02x}' for c in a_string.encode('utf-8'))
'd0:9f:d1:80:d0:b8:d0:b2:d0:b5:d1:82:20:d0:bc:d0:b8:d1:80:21:21'
In Python 2, pass c
to ord
first, i.e. ord(c)
- more examples:
>>> ":".join("{:02x}".format(ord(c)) for c in a_string.encode('utf-8'))
'd0:9f:d1:80:d0:b8:d0:b2:d0:b5:d1:82:20:d0:bc:d0:b8:d1:80:21:21'
>>> ":".join(format(ord(c), '02x') for c in a_string.encode('utf-8'))
'd0:9f:d1:80:d0:b8:d0:b2:d0:b5:d1:82:20:d0:bc:d0:b8:d1:80:21:21'
Simple binary threshold method is sufficient.
#include <string>
#include "opencv/highgui.h"
#include "opencv2/imgproc/imgproc.hpp"
using namespace std;
using namespace cv;
int main()
{
Mat img = imread("./img.jpg",0);//loading gray scale image
threshold(img, img, 128, 255, CV_THRESH_BINARY);//threshold binary, you can change threshold 128 to your convenient threshold
imwrite("./black-white.jpg",img);
return 0;
}
You can use GaussianBlur
to get a smooth black and white image.
This works, and while it looks inefficient to skip the directory test, it's not: the test happens right away in listFiles()
.
void deleteDir(File file) {
File[] contents = file.listFiles();
if (contents != null) {
for (File f : contents) {
deleteDir(f);
}
}
file.delete();
}
Update, to avoid following symbolic links:
void deleteDir(File file) {
File[] contents = file.listFiles();
if (contents != null) {
for (File f : contents) {
if (! Files.isSymbolicLink(f.toPath())) {
deleteDir(f);
}
}
}
file.delete();
}
I generated a node/gulp app using the generator-gulp-webapp Yeoman generator. It handled the "clean conundrum" this way (translating to the original tasks mentioned in the question):
gulp.task('develop', ['clean'], function () {
gulp.start('coffee');
});
Consider:
class Bike(object):
def __init__(self, name, weight, cost):
self.name = name
self.weight = weight
self.cost = cost
bikes = {
# Bike designed for children"
"Trike": Bike("Trike", 20, 100), # <--
# Bike designed for everyone"
"Kruzer": Bike("Kruzer", 50, 165), # <--
}
# Markup of 20% on all sales
margin = .2
# Revenue minus cost after sale
for bike in bikes.values():
profit = bike.cost * margin
print(profit)
Output:
33.0 20.0
The difference is that in your bikes
dictionary, you're initializing the values as lists [...]
. Instead, it looks like the rest of your code wants Bike
instances. So create Bike
instances: Bike(...)
.
As for your error
AttributeError: 'list' object has no attribute 'cost'
this will occur when you try to call .cost
on a list
object. Pretty straightforward, but we can figure out what happened by looking at where you call .cost
-- in this line:
profit = bike.cost * margin
This indicates that at least one bike
(that is, a member of bikes.values()
is a list). If you look at where you defined bikes
you can see that the values were, in fact, lists. So this error makes sense.
But since your class has a cost attribute, it looked like you were trying to use Bike
instances as values, so I made that little change:
[...] -> Bike(...)
and you're all set.
I had a similar issue but I was unable to use the UserAgent
class inside the fake_useragent
module. I was running the code inside a docker container
import requests
import ujson
import random
response = requests.get('https://fake-useragent.herokuapp.com/browsers/0.1.11')
agents_dictionary = ujson.loads(response.text)
random_browser_number = str(random.randint(0, len(agents_dictionary['randomize'])))
random_browser = agents_dictionary['randomize'][random_browser_number]
user_agents_list = agents_dictionary['browsers'][random_browser]
user_agent = user_agents_list[random.randint(0, len(user_agents_list)-1)]
I targeted the endpoint used in the module. This solution still gave me a random user agent however there is the possibility that the data structure at the endpoint could change.
OpenCV Specific
Opencv supports filesystem, probably through its dependency Boost.
#include <opencv2/core/utils/filesystem.hpp>
cv::utils::fs::createDirectory(outputDir);
Use Location property of the form. Set it to the desired top left point
desired x = (desktop_width - form_witdh)/2
desired y = (desktop_height - from_height)/2
I spent some time on the two main approaches here and they didn't work-out for me. I am using Netbeans for the builds, may be there's more going on there. I had some errors and warnings from Maven 3 with some constructs, but I think those were easy to correct. No biggie.
I did find an answer that looks maintainable and simple to implement in this article on DZone:
I already have a resources/config sub-folder, and I named my file: app.properties, to better reflect the kind of stuff we may keep there (like a support URL, etc.).
The only caveat is that Netbeans gives a warning that the IDE needs filtering off. Not sure where/how. It has no effect at this point. Perhaps there's a work around for that if I need to cross that bridge. Best of luck.
document.getElementById("idframe").contentWindow.document.getElementById("idelement").value;
Another super clear way of doing this could be as follows:
let modifiedString = originalString .split('').reverse().join('') .replace('_', '') .split('').reverse().join('')
I think this is what you are trying to do
$array = array('lastname', 'email', 'phone');
echo "'" . implode("','", explode(',', $array)) . "'";
In my mind I have to consider that the foo
folder is a stand-alone library. I might want to consider moving it to the Lib\site-packages
folder within a python installation. I might want to consider adding a foo.pth
file there.
I know it's a library since the ./programs/my_python_program.py
contains the following line:
from foo.tasks import my_function
So it doesn't matter that ./programs
is a sibling folder to ./foo
. It's the fact that my_python_program.py
is run as a script like this:
python ./programs/my_python_program.py
Based on information found at http://www.windows-tech.info/3/53ee08e46d9cb138.php, I was able to achieve a translucent panel control using the following code.
public class TransparentPanel : Panel
{
protected override CreateParams CreateParams
{
get
{
var cp = base.CreateParams;
cp.ExStyle |= 0x00000020; // WS_EX_TRANSPARENT
return cp;
}
}
protected override void OnPaint(PaintEventArgs e) =>
e.Graphics.FillRectangle(new SolidBrush(this.BackColor), this.ClientRectangle);
}
The caveat is that any controls that are added to the panel have an opaque background. Nonetheless, the translucent panel was useful for me to block off parts of my WinForms application so that users focus was shifted to the appropriate area of the application.
You can also loop through the buttons with a forEach-loop on the elements
var elements = document.getElementsByName('radioButton');
var checkedButton;
console.log(elements);
elements.forEach(e => {
if (e.checked) {
//if radio button is checked, set sort style
checkedButton = e.value;
}
});
Many people will suggest you use MERGE
, but I caution you against it. By default, it doesn't protect you from concurrency and race conditions any more than multiple statements, but it does introduce other dangers:
http://www.mssqltips.com/sqlservertip/3074/use-caution-with-sql-servers-merge-statement/
Even with this "simpler" syntax available, I still prefer this approach (error handling omitted for brevity):
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE;
BEGIN TRANSACTION;
UPDATE dbo.table SET ... WHERE PK = @PK;
IF @@ROWCOUNT = 0
BEGIN
INSERT dbo.table(PK, ...) SELECT @PK, ...;
END
COMMIT TRANSACTION;
A lot of folks will suggest this way:
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE;
BEGIN TRANSACTION;
IF EXISTS (SELECT 1 FROM dbo.table WHERE PK = @PK)
BEGIN
UPDATE ...
END
ELSE
BEGIN
INSERT ...
END
COMMIT TRANSACTION;
But all this accomplishes is ensuring you may need to read the table twice to locate the row(s) to be updated. In the first sample, you will only ever need to locate the row(s) once. (In both cases, if no rows are found from the initial read, an insert occurs.)
Others will suggest this way:
BEGIN TRY
INSERT ...
END TRY
BEGIN CATCH
IF ERROR_NUMBER() = 2627
UPDATE ...
END CATCH
However, this is problematic if for no other reason than letting SQL Server catch exceptions that you could have prevented in the first place is much more expensive, except in the rare scenario where almost every insert fails. I prove as much here:
Not sure what you think you gain by having a single statement; I don't think you gain anything. MERGE
is a single statement but it still has to really perform multiple operations anyway - even though it makes you think it doesn't.
If anybody is wondering how to achieve this in iOS 7+, here's a solution (iOS 6 compatible too)
In Objective-C
[self.navigationBar setBackgroundImage:[UIImage new]
forBarMetrics:UIBarMetricsDefault];
self.navigationBar.shadowImage = [UIImage new];
self.navigationBar.translucent = YES;
In swift 3 (iOS 10)
self.navigationBar.setBackgroundImage(UIImage(), for: .default)
self.navigationBar.shadowImage = UIImage()
self.navigationBar.isTranslucent = true
In swift 2
self.navigationBar.setBackgroundImage(UIImage(), forBarMetrics: .Default)
self.navigationBar.shadowImage = UIImage()
self.navigationBar.translucent = true
Setting translucent
to YES
on the navigation bar does the trick, due to a behavior discussed in the UINavigationBar
documentation. I'll report here the relevant fragment:
If you set this property to
YES
on a navigation bar with an opaque custom background image, the navigation bar will apply a system opacity less than 1.0 to the image.
The error is occurring because you already have a schema defined, and then you are defining the schema again. Generally what you should do is instantiate the schema once, and then have a global object call it when it needs it.
For example:
user_model.js
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var userSchema = new Schema({
name:String,
email:String,
password:String,
phone:Number,
_enabled:Boolean
});
module.exports = mongoose.model('users', userSchema);
check.js
var mongoose = require('mongoose');
var User = require('./user_model.js');
var db = mongoose.createConnection('localhost', 'event-db');
db.on('error', console.error.bind(console, 'connection error:'));
var a1= db.once('open',function(){
User.find({},{},function (err, users) {
mongoose.connection.close();
console.log("Username supplied"+username);
//doSomethingHere
})
});
insert.js
var mongoose = require('mongoose');
var User = require('./user_model.js');
mongoose.connect('mongodb://localhost/event-db');
var new_user = new User({
name:req.body.name
, email: req.body.email
, password: req.body.password
, phone: req.body.phone
, _enabled:false
});
new_user.save(function(err){
if(err) console.log(err);
});
Tested only on Firefox:
<script>
window.onload = window.onresize = function() {
var C = 0.8; // canvas width to viewport width ratio
var W_TO_H = 2/1; // canvas width to canvas height ratio
var el = document.getElementById("a");
// For IE compatibility http://www.google.com/search?q=get+viewport+size+js
var viewportWidth = window.innerWidth;
var viewportHeight = window.innerHeight;
var canvasWidth = viewportWidth * C;
var canvasHeight = canvasWidth / W_TO_H;
el.style.position = "fixed";
el.setAttribute("width", canvasWidth);
el.setAttribute("height", canvasHeight);
el.style.top = (viewportHeight - canvasHeight) / 2;
el.style.left = (viewportWidth - canvasWidth) / 2;
window.ctx = el.getContext("2d");
ctx.clearRect(0,0,canvasWidth,canvasHeight);
ctx.fillStyle = 'yellow';
ctx.moveTo(0, canvasHeight/2);
ctx.lineTo(canvasWidth/2, 0);
ctx.lineTo(canvasWidth, canvasHeight/2);
ctx.lineTo(canvasWidth/2, canvasHeight);
ctx.lineTo(0, canvasHeight/2);
ctx.fill()
}
</script>
<body>
<canvas id="a" style="background: black">
</canvas>
</body>
You can also format the string like so:
>>> print ("{index}. {word} appears {count} times".format(index=1, word='Hello', count=42))
Which outputs
1. Hello appears 42 times.
Because the values are named, their order does not matter. Making the example below output the same as the above example.
>>> print ("{index}. {word} appears {count} times".format(count=42, index=1, word='Hello'))
Formatting string this way allows you to do this.
>>> data = {'count':42, 'index':1, 'word':'Hello'}
>>> print ("{index}. {word} appears {count} times.".format(**data))
1. Hello appears 42 times.
I developed a library for this usecase: https://github.com/sunnykgupta/jsLogger
Features:
log
, warn
, error
, info
.Is open for modifications and will be updated whenever new suggestions come up.
You should prefer Object Mapper instead. Here is the link for the same : Object Mapper - Spring MVC way of Obect to JSON
Indeed, if you sorted out the iterator then buffering could now be your problem. You could tell the python in the sub-process not to buffer its output.
proc = subprocess.Popen(['python','fake_utility.py'],stdout=subprocess.PIPE)
becomes
proc = subprocess.Popen(['python','-u', 'fake_utility.py'],stdout=subprocess.PIPE)
I have needed this when calling python from within python.
As the other have mentioned, the load event does not bubble. Instead you can manually trigger a load-like event with a custom event:
$('#item').on('namespace/onload', handleOnload).trigger('namespace/onload')
If your element is already listening to a change
event:
$('#item').on('change', handleChange).trigger('change')
I find this works well. Though, I stick to custom events to be more explicit and avoid side effects.
Try this out:
grep -i 'killed process' /var/log/messages
For other language use day of week to recognize day name
For example for Persian use below code
$dayName = getDayName(date('w', strtotime('2019-11-14')));
function getDayName($dayOfWeek) {
switch ($dayOfWeek){
case 6:
return '????';
case 0:
return '?? ????';
case 1:
return '?? ????';
case 2:
return '?? ????';
case 3:
return '???? ????';
case 4:
return '??? ????';
case 5:
return '????';
default:
return '';
}
}
More info : https://www.php.net/manual/en/function.date.php
Had the same problem in a Project we had taken over after another vendor built it. The problem was that while there were a number of commands written by the previous vendor in Global.asax.cs, which might lead you to believe it was in use, it was actually being ignored entirely. Global.asax wasn't inheriting from it, and it's easy to never see this file if the .cs file is present - you have to right-click Global.asax and click View Markup to actually see it.
Global.asax:
<%@ Application Language="C#" %>
Needed to be changed to:
<%@ Application Codebehind="Global.asax.cs" Inherits="ProjectNamespace.MvcApplication" Language="C#" %>
Where ProjectNamespace is whatever the namespace is of your Global.asax.cs class (usually the name of your Project).
In our case the file contained a bunch of inline code, some of which was copy-pasted from the .cs file, some not. We just dumped the inline code over to the .cs file and gradually merged our changes back in.
You can do
my_set = set(my_list)
or, in Python 3,
my_set = {*my_list}
to create a set from a list. Conversely, you can also do
my_list = list(my_set)
or, in Python 3,
my_list = [*my_set]
to create a list from a set.
Just note that the order of the elements in a list is generally lost when converting the list to a set since a set is inherently unordered. (One exception in CPython, though, seems to be if the list consists only of non-negative integers, but I assume this is a consequence of the implementation of sets in CPython and that this behavior can vary between different Python implementations.)
Actually I found out that the container of the image tag need to have a height in order to keep the ratio of the image. for example>
.container{display:flex; height:100%;} img{width:100%;height:auto;}
then in your html your container will wrap the tag image
<div class="container"><img src="image.jpg" alt="image" /></div>
this work for IE and other browsers
The accepted answer is good for smaller numbers, most importantly while you are taking data from excel sheets. as the bigger numbers will automatically converted to scientific numbers i.e. e+10.
So I think this will give you more general answer. I didn't check if it have any downfall or not.
CStr(CDbl(#yourNumber#))
this will work for e+ converted numbers! as the just CStr(7.7685099559e+11)
will be shown as "7.7685099559e+11" not as expected: "776850995590" So I rather to say my answer will be more generic result.
Regards, M
I use Singletons as an interview test.
When I ask a developer to name some design patterns, if all they can name is Singleton, they're not hired.
May be this helps some one who are looking for multiple date formats one after the other by willingly or unexpectedly. Please find the code: I am using moment.js format function on a current date as (today is 29-06-2020) var startDate = moment(new Date()).format('MM/DD/YY'); Result: 06/28/20
what happening is it retains only the year part :20 as "06/28/20", after If I run the statement : new Date(startDate) The result is "Mon Jun 28 1920 00:00:00 GMT+0530 (India Standard Time)",
Then, when I use another format on "06/28/20": startDate = moment(startDate ).format('MM-DD-YYYY'); Result: 06-28-1920, in google chrome and firefox browsers it gives correct date on second attempt as: 06-28-2020. But in IE it is having issues, from this I understood we can apply one dateformat on the given date, If we want second date format, it should be apply on the fresh date not on the first date format result. And also observe that for first time applying 'MM-DD-YYYY' and next 'MM-DD-YY' is working in IE. For clear understanding please find my question in the link: Date went wrong when using Momentjs date format in IE 11
Perl 6 has the say
function that automatically appends \n
.
You can also use say
in Perl 5.10 or 5.12 if you add
use feature qw(say);
to the beginning of your program. Or you can use Modern::Perl to get this and other features.
See perldoc feature for more details.
If you're using Apline Linux, the BusyBox netcat is slightly different:
while true; do nc -l -p 8080 -e sh -c 'echo -e "HTTP/1.1 200 OK\n\n$(date)"'; done
And another way using printf
:
while true; do nc -l -p 8080 -e sh -c "printf 'HTTP/1.1 200 OK\n\n%s' \"$(date)\""; done
If you are lucky enough to develop on Kotlin, just create an extension function:
fun String.toSpanned(): Spanned {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
return Html.fromHtml(this, Html.FROM_HTML_MODE_LEGACY)
} else {
@Suppress("DEPRECATION")
return Html.fromHtml(this)
}
}
And then it's so sweet to use it everywhere:
yourTextView.text = anyString.toSpanned()
Which SQL was not specified, SQL 2005 / 2008
SELECT yourfields from yourTable WHERE yourfieldWithDate > dateadd(dd,-1,getdate())
If you are on the 2008 increased accuracy date types, then use the new sysdatetime() function instead, equally if using UTC times internally swap to the UTC calls.
I would like to add an answer here, because this worked for me. I used time delays, while loops, everything I could think of.
I had the Windows Explorer window of the output folder open. I closed it, and everything worked like a charm.
I hope this helps someone.
import re
ipv=raw_input("Enter an ip address")
a=ipv.split('.')
s=str(bin(int(a[0]))+bin(int(a[1]))+bin(int(a[2]))+bin(int(a[3])))
s=s.replace("0b",".")
m=re.search('\.[0,1]{1,8}\.[0,1]{1,8}\.[0,1]{1,8}\.[0,1]{1,8}$',s)
if m is not None:
print "Valid sequence of input"
else :
print "Invalid input sequence"
Just to keep it simple I have used this approach. Simple as in to explain how really ipv4 address is evaluated. Checking whether its a binary number is although not required. Hope you like this.
Because GFW forbidden you to access golang.org ! And when i use the proxy , it can work well.
you can look at the information using command
go get -v -u golang.org/x/oauth2
You can search a directory using Find
? Find in files
. This also includes all opened tabs.
The keyboard shortcut is Ctrl?+F on non-Mac (regular) keyboards, and ??+F on a Mac.
You'll be presented with three boxes: Find
, Where
and Replace
. It's a regular Find/Find-replace search where Where
specifies a file or directory to search. I for example often use a file name or .
for searching the current directory. There are also a few special constructs that can be used within the Where
field:
<project>,<current file>,<open files>,<open folders>,-*.doc,*.txt
Note that these are not placeholders, you type these verbatim.
Most of them are self-explanatory (e.g. -*.doc
excludes files with a .doc
extension).
Pressing the ...
to the right will present you with all available options.
After searching you'll be presented with a Find results
page with all of your matching results. To jump to specific lines and files from it you simply double-click on a line.
Since python 3.6 you can use fstring :
>>> length = 1
>>> print(f'length = {length:03}')
length = 001
Git command Quick Reference
git [command] -help
Git command Manual Pages
git help [command]
git [command] --help
Autocomplete
git <tab>
Cheat Sheets
You want to take advantage of the inserted logical table that is available in the context of a trigger. It matches the schema for the table that is being inserted to and includes the row(s) that will be inserted (in an update trigger you have access to the inserted and deleted logical tables which represent the the new and original data respectively.)
So to insert Employee / Department pairs that do not currently exist you might try something like the following.
CREATE TRIGGER trig_Update_Employee
ON [EmployeeResult]
FOR INSERT
AS
Begin
Insert into Employee (Name, Department)
Select Distinct i.Name, i.Department
from Inserted i
Left Join Employee e
on i.Name = e.Name and i.Department = e.Department
where e.Name is null
End
Most minimal way to achieve this (that I know of):
.text-monospace
to all texts in in the card.Add .text-truncate
in the card's title and or other texts. This forces texts to a single line. Making the cards have same height.
/* YOU CAN TRY THIS TOO */
import java.io.File;
import java.lang.management.ManagementFactory;
// import java.lang.management.OperatingSystemMXBean;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.lang.management.RuntimeMXBean;
import java.io.*;
import java.net.*;
import java.util.*;
import java.io.LineNumberReader;
import java.lang.management.ManagementFactory;
import com.sun.management.OperatingSystemMXBean;
import java.lang.management.ManagementFactory;
import java.util.Random;
public class Pragati
{
public static void printUsage(Runtime runtime)
{
long total, free, used;
int mb = 1024*1024;
total = runtime.totalMemory();
free = runtime.freeMemory();
used = total - free;
System.out.println("\nTotal Memory: " + total / mb + "MB");
System.out.println(" Memory Used: " + used / mb + "MB");
System.out.println(" Memory Free: " + free / mb + "MB");
System.out.println("Percent Used: " + ((double)used/(double)total)*100 + "%");
System.out.println("Percent Free: " + ((double)free/(double)total)*100 + "%");
}
public static void log(Object message)
{
System.out.println(message);
}
public static int calcCPU(long cpuStartTime, long elapsedStartTime, int cpuCount)
{
long end = System.nanoTime();
long totalAvailCPUTime = cpuCount * (end-elapsedStartTime);
long totalUsedCPUTime = ManagementFactory.getThreadMXBean().getCurrentThreadCpuTime()-cpuStartTime;
//log("Total CPU Time:" + totalUsedCPUTime + " ns.");
//log("Total Avail CPU Time:" + totalAvailCPUTime + " ns.");
float per = ((float)totalUsedCPUTime*100)/(float)totalAvailCPUTime;
log( per);
return (int)per;
}
static boolean isPrime(int n)
{
// 2 is the smallest prime
if (n <= 2)
{
return n == 2;
}
// even numbers other than 2 are not prime
if (n % 2 == 0)
{
return false;
}
// check odd divisors from 3
// to the square root of n
for (int i = 3, end = (int)Math.sqrt(n); i <= end; i += 2)
{
if (n % i == 0)
{
return false;
}
}
return true;
}
public static void main(String [] args)
{
int mb = 1024*1024;
int gb = 1024*1024*1024;
/* PHYSICAL MEMORY USAGE */
System.out.println("\n**** Sizes in Mega Bytes ****\n");
com.sun.management.OperatingSystemMXBean operatingSystemMXBean = (com.sun.management.OperatingSystemMXBean)ManagementFactory.getOperatingSystemMXBean();
//RuntimeMXBean runtimeMXBean = ManagementFactory.getRuntimeMXBean();
//operatingSystemMXBean = (com.sun.management.OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
com.sun.management.OperatingSystemMXBean os = (com.sun.management.OperatingSystemMXBean)
java.lang.management.ManagementFactory.getOperatingSystemMXBean();
long physicalMemorySize = os.getTotalPhysicalMemorySize();
System.out.println("PHYSICAL MEMORY DETAILS \n");
System.out.println("total physical memory : " + physicalMemorySize / mb + "MB ");
long physicalfreeMemorySize = os.getFreePhysicalMemorySize();
System.out.println("total free physical memory : " + physicalfreeMemorySize / mb + "MB");
/* DISC SPACE DETAILS */
File diskPartition = new File("C:");
File diskPartition1 = new File("D:");
File diskPartition2 = new File("E:");
long totalCapacity = diskPartition.getTotalSpace() / gb;
long totalCapacity1 = diskPartition1.getTotalSpace() / gb;
double freePartitionSpace = diskPartition.getFreeSpace() / gb;
double freePartitionSpace1 = diskPartition1.getFreeSpace() / gb;
double freePartitionSpace2 = diskPartition2.getFreeSpace() / gb;
double usablePatitionSpace = diskPartition.getUsableSpace() / gb;
System.out.println("\n**** Sizes in Giga Bytes ****\n");
System.out.println("DISC SPACE DETAILS \n");
//System.out.println("Total C partition size : " + totalCapacity + "GB");
//System.out.println("Usable Space : " + usablePatitionSpace + "GB");
System.out.println("Free Space in drive C: : " + freePartitionSpace + "GB");
System.out.println("Free Space in drive D: : " + freePartitionSpace1 + "GB");
System.out.println("Free Space in drive E: " + freePartitionSpace2 + "GB");
if(freePartitionSpace <= totalCapacity%10 || freePartitionSpace1 <= totalCapacity1%10)
{
System.out.println(" !!!alert!!!!");
}
else
System.out.println("no alert");
Runtime runtime;
byte[] bytes;
System.out.println("\n \n**MEMORY DETAILS ** \n");
// Print initial memory usage.
runtime = Runtime.getRuntime();
printUsage(runtime);
// Allocate a 1 Megabyte and print memory usage
bytes = new byte[1024*1024];
printUsage(runtime);
bytes = null;
// Invoke garbage collector to reclaim the allocated memory.
runtime.gc();
// Wait 5 seconds to give garbage collector a chance to run
try {
Thread.sleep(5000);
} catch(InterruptedException e) {
e.printStackTrace();
return;
}
// Total memory will probably be the same as the second printUsage call,
// but the free memory should be about 1 Megabyte larger if garbage
// collection kicked in.
printUsage(runtime);
for(int i = 0; i < 30; i++)
{
long start = System.nanoTime();
// log(start);
//number of available processors;
int cpuCount = ManagementFactory.getOperatingSystemMXBean().getAvailableProcessors();
Random random = new Random(start);
int seed = Math.abs(random.nextInt());
log("\n \n CPU USAGE DETAILS \n\n");
log("Starting Test with " + cpuCount + " CPUs and random number:" + seed);
int primes = 10000;
//
long startCPUTime = ManagementFactory.getThreadMXBean().getCurrentThreadCpuTime();
start = System.nanoTime();
while(primes != 0)
{
if(isPrime(seed))
{
primes--;
}
seed++;
}
float cpuPercent = calcCPU(startCPUTime, start, cpuCount);
log("CPU USAGE : " + cpuPercent + " % ");
try
{
Thread.sleep(1000);
}
catch (InterruptedException e) {}
}
try
{
Thread.sleep(500);
}`enter code here`
catch (Exception ignored) { }
}
}
If you would like to auto format on save just with Javascript source, add this one into Users Setting
(press Cmd, or Ctrl,):
"[javascript]": { "editor.formatOnSave": true }
You can also check the default buffer size by calling the read only DEFAULT_BUFFER_SIZE attribute from io module.
import io
print (io.DEFAULT_BUFFER_SIZE)
Another solution without using any height but still fills 100% available height. Checkout this e.g on the codepen. http://codepen.io/gauravshankar/pen/PqoLLZ
For this html and body should have 100% height. This height is equal to the viewport height.
Make inner div position absolute and give top and bottom 0. This fills the div to available height. (height equal to body.)
html code:
<head></head>
<body>
<div></div>
</body>
</html>
css code:
* {
margin: 0;
padding: 0;
}
html,
body {
height: 100%;
position: relative;
}
html {
background-color: red;
}
body {
background-color: green;
}
body> div {
position: absolute;
background-color: teal;
width: 300px;
top: 0;
bottom: 0;
}
As others recommend, you can use Oracle SQL Developer. You can point to the location of the script to run it, as described. A slightly simpler method, though, is to just use drag-and-drop:
Why would we want to check if an array is empty
? Arrays don't grow or shrink in the same that lists do. Starting with a 'empty' array, and growing with np.append
is a frequent novice error.
Using a list in if alist:
hinges on its boolean value:
In [102]: bool([])
Out[102]: False
In [103]: bool([1])
Out[103]: True
But trying to do the same with an array produces (in version 1.18):
In [104]: bool(np.array([]))
/usr/local/bin/ipython3:1: DeprecationWarning: The truth value
of an empty array is ambiguous. Returning False, but in
future this will result in an error. Use `array.size > 0` to
check that an array is not empty.
#!/usr/bin/python3
Out[104]: False
In [105]: bool(np.array([1]))
Out[105]: True
and bool(np.array([1,2])
produces the infamous ambiguity error.
The accepted answer suggests size
:
In [11]: x = np.array([])
In [12]: x.size
Out[12]: 0
But I (and most others) check the shape
more than the size
:
In [13]: x.shape
Out[13]: (0,)
Another thing in its favor is that it 'maps' on to an empty
list:
In [14]: x.tolist()
Out[14]: []
But there are other other arrays with 0 size
, that aren't 'empty' in that last sense:
In [15]: x = np.array([[]])
In [16]: x.size
Out[16]: 0
In [17]: x.shape
Out[17]: (1, 0)
In [18]: x.tolist()
Out[18]: [[]]
In [19]: bool(x.tolist())
Out[19]: True
np.array([[],[]])
is also size 0, but shape (2,0) and len
2.
While the concept of an empty
list is well defined, an empty array
is not well defined. One empty list is equal to another. The same can't be said for a size 0
array.
The answer really depends on
<div className={['foo', condition && 'bar'].filter(Boolean).join(' ')} />
.filter(Boolean)
removes "falsey" values from the array. Since class names must be strings, anything other than that would not be included in the new filtered array.
console.log( ['foo', true && 'bar'].filter(Boolean).join(' ') )
console.log( ['foo', false && 'bar'].filter(Boolean).join(' ') )
_x000D_
const cx = (...list) => list.filter(Boolean).join(' ')
// usage:
<div className={cx('foo', condition && 'bar')} />
var cx = (...list) => list.filter(Boolean).join(' ')
console.log( cx('foo', 1 && 'bar', 1 && 'baz') )
console.log( cx('foo', 0 && 'bar', 1 && 'baz') )
console.log( cx('foo', 0 && 'bar', 0 && 'baz') )
_x000D_
Just initialize an array and push the element on the array. It will automatic scale the array.
var a = [ ];
a.push('Some string'); console.log(a); // ['Some string']
a.push('another string'); console.log(a); // ['Some string', 'another string']
a.push('Some string'); console.log(a); // ['Some string', 'another string', 'Some string']
With the new development center it is now easier:
1) Leave app domains blank.
2) Click Add Platform
3) Site URL should equal the full path of your local host.
4) Save Changes
If you are having this problem in react-native projects with one of the external library. You should remove the project and use react-native link <package-name>
again. That should solve the problem.
This is my take on expanding @klimat answer to not losing filtering animation.
public void filter(String query){
int completeListIndex = 0;
int filteredListIndex = 0;
while (completeListIndex < completeList.size()){
Movie item = completeList.get(completeListIndex);
if(item.getName().toLowerCase().contains(query)){
if(filteredListIndex < filteredList.size()) {
Movie filter = filteredList.get(filteredListIndex);
if (!item.getName().equals(filter.getName())) {
filteredList.add(filteredListIndex, item);
notifyItemInserted(filteredListIndex);
}
}else{
filteredList.add(filteredListIndex, item);
notifyItemInserted(filteredListIndex);
}
filteredListIndex++;
}
else if(filteredListIndex < filteredList.size()){
Movie filter = filteredList.get(filteredListIndex);
if (item.getName().equals(filter.getName())) {
filteredList.remove(filteredListIndex);
notifyItemRemoved(filteredListIndex);
}
}
completeListIndex++;
}
}
Basically what it does is looking through a complete list and adding/removing items to a filtered list one by one.
Sometime I have to work from home and connect to office through vpn. Internal domain names should be resolved to different IPs at home. There are several names that have to be changed between office and home. For example:
At office, a => 192.168.0.3, b => 192.168.0.52.
At home, a => 10.6.1.7, b => 10.4.5.23.
My solution is to create two files: C:\WINDOWS\system32\drivers\etc\hosts-home and C:\WINDOWS\system32\drivers\etc\hosts-office. Each of them contains set of name-to-IP mapping. From Administrator PowerShell, When I work at the office, execute
C:\WINDOWS\system32> cp .\drivers\etc\hosts-office .\drivers\etc\hosts
When I arrive at home, execute
C:\WINDOWS\system32> cp .\drivers\etc\hosts-home .\drivers\etc\hosts
In my case, the error occurred because I was using the wrong version of jquery.
<script src="http://code.jquery.com/jquery-migrate-1.2.1.min.js"></script>
I changed it to:
<script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
As @TechSpellBound suggested remove the quotes around the ? signs. Then add a space character at the end of each row in your concatenated string. Otherwise the entire query will be sent as (using only part of it as an example) : .... WHERE bookings.booking_end < date ?OR bookings.booking_start > date ?GROUP BY ....
The ?
and the OR
needs to be seperated by a space character. Do it wherever needed in the query string.
I've found this useful:
select translate('your string','_0123456789','_') from dual
If the result is NULL, it's numeric (ignoring floating point numbers.)
However, I'm a bit baffled why the underscore is needed. Without it the following also returns null:
select translate('s123','0123456789', '') from dual
There is also one of my favorite tricks - not perfect if the string contains stuff like "*" or "#":
SELECT 'is a number' FROM dual WHERE UPPER('123') = LOWER('123')
As ping
works, but telnet
to port 80
does not, the HTTP port 80
is closed on your machine. I assume that your browser's HTTP connection goes through a proxy (as browsing works, how else would you read stackoverflow?).
You need to add some code to your python program, that handles the proxy, like described here:
Your classes should look like this
[XmlRoot("StepList")]
public class StepList
{
[XmlElement("Step")]
public List<Step> Steps { get; set; }
}
public class Step
{
[XmlElement("Name")]
public string Name { get; set; }
[XmlElement("Desc")]
public string Desc { get; set; }
}
Here is my testcode.
string testData = @"<StepList>
<Step>
<Name>Name1</Name>
<Desc>Desc1</Desc>
</Step>
<Step>
<Name>Name2</Name>
<Desc>Desc2</Desc>
</Step>
</StepList>";
XmlSerializer serializer = new XmlSerializer(typeof(StepList));
using (TextReader reader = new StringReader(testData))
{
StepList result = (StepList) serializer.Deserialize(reader);
}
If you want to read a text file you should load the file into a FileStream and deserialize this.
using (FileStream fileStream = new FileStream("<PathToYourFile>", FileMode.Open))
{
StepList result = (StepList) serializer.Deserialize(fileStream);
}
IF
is a PL/SQL construct. If you are executing a query, you are using SQL not PL/SQL.
In SQL, you can use a CASE
statement in the query itself
SELECT DISTINCT a.item,
(CASE WHEN b.salesman = 'VIKKIE'
THEN 'ICKY'
ELSE b.salesman
END),
NVL(a.manufacturer,'Not Set') Manufacturer
FROM inv_items a,
arv_sales b
WHERE a.co = '100'
AND a.co = b.co
AND A.ITEM_KEY = b.item_key
AND a.item LIKE 'BX%'
AND b.salesman in ('01','15')
AND trans_date BETWEEN to_date('010113','mmddrr')
and to_date('011713','mmddrr')
ORDER BY a.item
Since you aren't doing any aggregation, you don't want a GROUP BY
in your query. Are you really sure that you need the DISTINCT
? People often throw that in haphazardly or add it when they are missing a join condition rather than considering whether it is really necessary to do the extra work to identify and remove duplicates.
Once Go lang is installed, GOROOT is the root directory of the installation.
When I exploded Go Lang binary in Windows C:\ directory, my GOROOT should be C:\go. If Installed with Windows installer, it may be C:\Program Files\go (or C:\Program Files (x86)\go, for 64-bit packages)
GOROOT = C:\go
while my GOPATH is location of Go lang source code or workspace.
If my Go lang source code is located at C:\Users\\GO_Workspace, your GOPATH would be as below:
GOPATH = C:\Users\<xyz>\GO_Workspace
Some of these fall into the category of general NLog (or logging) tips rather than strictly configuration suggestions.
Here are some general logging links from here at SO (you might have seen some or all of these already):
What's the point of a logging facade?
Why do loggers recommend using a logger per class?
Use the common pattern of naming your logger based on the class Logger logger = LogManager.GetCurrentClassLogger()
. This gives you a high degree of granularity in your loggers and gives you great flexibility in the configuration of the loggers (control globally, by namespace, by specific logger name, etc).
Use non-classname-based loggers where appropriate. Maybe you have one function for which you really want to control the logging separately. Maybe you have some cross-cutting logging concerns (performance logging).
If you don't use classname-based logging, consider naming your loggers in some kind of hierarchical structure (maybe by functional area) so that you can maintain greater flexibility in your configuration. For example, you might have a "database" functional area, an "analysis" FA, and a "ui" FA. Each of these might have sub-areas. So, you might request loggers like this:
Logger logger = LogManager.GetLogger("Database.Connect");
Logger logger = LogManager.GetLogger("Database.Query");
Logger logger = LogManager.GetLogger("Database.SQL");
Logger logger = LogManager.GetLogger("Analysis.Financial");
Logger logger = LogManager.GetLogger("Analysis.Personnel");
Logger logger = LogManager.GetLogger("Analysis.Inventory");
And so on. With hierarchical loggers, you can configure logging globally (the "*" or root logger), by FA (Database, Analysis, UI), or by subarea (Database.Connect, etc).
Loggers have many configuration options:
<logger name="Name.Space.Class1" minlevel="Debug" writeTo="f1" />
<logger name="Name.Space.Class1" levels="Debug,Error" writeTo="f1" />
<logger name="Name.Space.*" writeTo="f3,f4" />
<logger name="Name.Space.*" minlevel="Debug" maxlevel="Error" final="true" />
See the NLog help for more info on exactly what each of the options means. Probably the most notable items here are the ability to wildcard logger rules, the concept that multiple logger rules can "execute" for a single logging statement, and that a logger rule can be marked as "final" so subsequent rules will not execute for a given logging statement.
Use the GlobalDiagnosticContext, MappedDiagnosticContext, and NestedDiagnosticContext to add additional context to your output.
Use "variable" in your config file to simplify. For example, you might define variables for your layouts and then reference the variable in the target configuration rather than specify the layout directly.
<variable name="brief" value="${longdate} | ${level} | ${logger} | ${message}"/>
<variable name="verbose" value="${longdate} | ${machinename} | ${processid} | ${processname} | ${level} | ${logger} | ${message}"/>
<targets>
<target name="file" xsi:type="File" layout="${verbose}" fileName="${basedir}/${shortdate}.log" />
<target name="console" xsi:type="ColoredConsole" layout="${brief}" />
</targets>
Or, you could create a "custom" set of properties to add to a layout.
<variable name="mycontext" value="${gdc:item=appname} , ${mdc:item=threadprop}"/>
<variable name="fmt1withcontext" value="${longdate} | ${level} | ${logger} | [${mycontext}] |${message}"/>
<variable name="fmt2withcontext" value="${shortdate} | ${level} | ${logger} | [${mycontext}] |${message}"/>
Or, you can do stuff like create "day" or "month" layout renderers strictly via configuration:
<variable name="day" value="${date:format=dddd}"/>
<variable name="month" value="${date:format=MMMM}"/>
<variable name="fmt" value="${longdate} | ${level} | ${logger} | ${day} | ${month} | ${message}"/>
<targets>
<target name="console" xsi:type="ColoredConsole" layout="${fmt}" />
</targets>
You can also use layout renders to define your filename:
<variable name="day" value="${date:format=dddd}"/>
<targets>
<target name="file" xsi:type="File" layout="${verbose}" fileName="${basedir}/${day}.log" />
</targets>
If you roll your file daily, each file could be named "Monday.log", "Tuesday.log", etc.
Don't be afraid to write your own layout renderer. It is easy and allows you to add your own context information to the log file via configuration. For example, here is a layout renderer (based on NLog 1.x, not 2.0) that can add the Trace.CorrelationManager.ActivityId to the log:
[LayoutRenderer("ActivityId")]
class ActivityIdLayoutRenderer : LayoutRenderer
{
int estimatedSize = Guid.Empty.ToString().Length;
protected override void Append(StringBuilder builder, LogEventInfo logEvent)
{
builder.Append(Trace.CorrelationManager.ActivityId);
}
protected override int GetEstimatedBufferSize(LogEventInfo logEvent)
{
return estimatedSize;
}
}
Tell NLog where your NLog extensions (what assembly) like this:
<extensions>
<add assembly="MyNLogExtensions"/>
</extensions>
Use the custom layout renderer like this:
<variable name="fmt" value="${longdate} | ${ActivityId} | ${message}"/>
Use async targets:
<nlog>
<targets async="true">
<!-- all targets in this section will automatically be asynchronous -->
</targets>
</nlog>
And default target wrappers:
<nlog>
<targets>
<default-wrapper xsi:type="BufferingWrapper" bufferSize="100"/>
<target name="f1" xsi:type="File" fileName="f1.txt"/>
<target name="f2" xsi:type="File" fileName="f2.txt"/>
</targets>
<targets>
<default-wrapper xsi:type="AsyncWrapper">
<wrapper xsi:type="RetryingWrapper"/>
</default-wrapper>
<target name="n1" xsi:type="Network" address="tcp://localhost:4001"/>
<target name="n2" xsi:type="Network" address="tcp://localhost:4002"/>
<target name="n3" xsi:type="Network" address="tcp://localhost:4003"/>
</targets>
</nlog>
where appropriate. See the NLog docs for more info on those.
Tell NLog to watch and automatically reload the configuration if it changes:
<nlog autoReload="true" />
There are several configuration options to help with troubleshooting NLog
<nlog throwExceptions="true" />
<nlog internalLogFile="file.txt" />
<nlog internalLogLevel="Trace|Debug|Info|Warn|Error|Fatal" />
<nlog internalLogToConsole="false|true" />
<nlog internalLogToConsoleError="false|true" />
See NLog Help for more info.
NLog 2.0 adds LayoutRenderer wrappers that allow additional processing to be performed on the output of a layout renderer (such as trimming whitespace, uppercasing, lowercasing, etc).
Don't be afraid to wrap the logger if you want insulate your code from a hard dependency on NLog, but wrap correctly. There are examples of how to wrap in the NLog's github repository. Another reason to wrap might be that you want to automatically add specific context information to each logged message (by putting it into LogEventInfo.Context).
There are pros and cons to wrapping (or abstracting) NLog (or any other logging framework for that matter). With a little effort, you can find plenty of info here on SO presenting both sides.
If you are considering wrapping, consider using Common.Logging. It works pretty well and allows you to easily switch to another logging framework if you desire to do so. Also if you are considering wrapping, think about how you will handle the context objects (GDC, MDC, NDC). Common.Logging does not currently support an abstraction for them, but it is supposedly in the queue of capabilities to add.
When you use the following (without disable-output-escaping
!) you'll get a single non-breaking space:
<xsl:text> </xsl:text>
I would like to expand on Martin's answer there...
His solution is rather nice, but it can be tweaked so any "variable type" can be printed like that.(It's actually Value Type, more on the topic). That said, "tweaked" may be a strong word for this. Regardless, it may be helpful.
Martins Solution:
a.getClass().getName()
However, If you want it to work with anything you can do this:
((Object) myVar).getClass().getName()
//OR
((Object) myInt).getClass().getSimpleName()
In this case, the primitive will simply be wrapped in a Wrapper. You will get the Object of the primitive in that case.
I myself used it like this:
private static String nameOf(Object o) {
return o.getClass().getSimpleName();
}
Using Generics:
public static <T> String nameOf(T o) {
return o.getClass().getSimpleName();
}
You can also use the standard CSS way (no need for JQuery plugin, but compatible with all browsers):
// Start blinking
$(".myblink").css("text-decoration", "blink");
// Stop blinking
$(".myblink").css("text-decoration", "none");
upstream
in the github example is just the name they've chosen to refer to that repository. You may choose any that you like when using git remote add
. Depending on what you select for this name, your git pull
usage will change. For example, if you use:
git remote add upstream git://github.com/somename/original-project.git
then you would use this to pull changes:
git pull upstream master
But, if you choose origin for the name of the remote repo, your commands would be:
To name the remote repo in your local config: git remote add origin git://github.com/somename/original-project.git
And to pull: git pull origin master
When we say
width:auto;
width will never exceed the total width of parent element. Maximum width is it's parent width. Even if we add border, padding and margin, content of element itself will become smaller in order to give space for border, padding and margin. In case if space required for border + padding + margin is greater than total width of parent element then width of content will become zero.
When we say
width:100%;
width of content of element will become 100% of parent element and from now if we add border, padding or margin then it will cause child element to exceed parent element's width and it will starts overflowing out of parent element.
Use StadiumBorder
shape
OutlineButton(
onPressed: () {},
child: Text("Follow"),
borderSide: BorderSide(color: Colors.blue),
shape: StadiumBorder(),
)
I don't believe this is a good pattern to use in general. Link will run your onClick event and then navigate to the route, so there will be a slight delay navigating to the new route. A better strategy is to navigate to the new route with the 'to' prop as you have done, and in the new component's componentDidMount() function you can fire your hello function or any other function. It will give you the same result, but with a much smoother transition between routes.
For context, I noticed this while updating my redux store with an onClick event on Link like you have here, and it caused a ~.3 second blank-white-screen delay before mounting the new route's component. There was no api call involved, so I was surprised the delay was so big. However, if you're just console logging 'hello' the delay might not be noticeable.
Wildcard works for me also, but I'd like to give a side note for those using directory variables. Always use slash for folder tree (not backslash), otherwise it will fail:
BASEDIR = ../..
SRCDIR = $(BASEDIR)/src
INSTALLDIR = $(BASEDIR)/lib
MODULES = $(wildcard $(SRCDIR)/*.cpp)
OBJS = $(wildcard *.o)
Below command is working for me. Which is working with variables
sed -i "/\<$E\>/c $D" "$B"
Compile-time: the time period in which you, the developer, are compiling your code.
Run-time: the time period which a user is running your piece of software.
Do you need any clearer definition?
Sure.. Why not?
Abstract base classes are just a convenience to house behavior and data common to 2 or more classes in a single place for efficiency of storage and maintenance. Its an implementation detail.
Take care however that you are not using an abstract base class where you should be using an interface. Refer to Interface vs Base class
I use randojs to make the randomness simpler and more readable. you can pick a random int between 100000 and 999999 like this with randojs:
console.log(rando(100000, 999999));
_x000D_
<script src="https://randojs.com/1.0.0.js"></script>
_x000D_
Yes, you can by using DBlink (postgresql only) and DBI-Link (allows foreign cross database queriers) and TDS_LInk which allows queries to be run against MS SQL server.
I have used DB-Link and TDS-link before with great success.
From a Powershell script, you can try this. I only had a single version of the assembly in the GAC so this worked just fine.
cd "c:\Windows\Microsoft.NET\assembly\GAC_MSIL\"
Get-ChildItem assemblypath -Recurse -Include *.dll | Copy-Item -Destination "c:\folder to copy to"
where the assembly path can use wildcards.
Maybe the simplest way is:
gmdate('H:i:s', $your_time_in_seconds);
Here is the @Sang solution but without Jquery.
var socialFloat = document.querySelector('#social-float');_x000D_
var footer = document.querySelector('#footer');_x000D_
_x000D_
function checkOffset() {_x000D_
function getRectTop(el){_x000D_
var rect = el.getBoundingClientRect();_x000D_
return rect.top;_x000D_
}_x000D_
_x000D_
if((getRectTop(socialFloat) + document.body.scrollTop) + socialFloat.offsetHeight >= (getRectTop(footer) + document.body.scrollTop) - 10)_x000D_
socialFloat.style.position = 'absolute';_x000D_
if(document.body.scrollTop + window.innerHeight < (getRectTop(footer) + document.body.scrollTop))_x000D_
socialFloat.style.position = 'fixed'; // restore when you scroll up_x000D_
_x000D_
socialFloat.innerHTML = document.body.scrollTop + window.innerHeight;_x000D_
}_x000D_
_x000D_
document.addEventListener("scroll", function(){_x000D_
checkOffset();_x000D_
});
_x000D_
div.social-float-parent { width: 100%; height: 1000px; background: #f8f8f8; position: relative; }_x000D_
div#social-float { width: 200px; position: fixed; bottom: 10px; background: #777; }_x000D_
div#footer { width: 100%; height: 200px; background: #eee; }
_x000D_
<div class="social-float-parent">_x000D_
<div id="social-float">_x000D_
float..._x000D_
</div>_x000D_
</div>_x000D_
<div id="footer">_x000D_
</div>
_x000D_
The biggest advantage is enum Singletons are easy to write and thread-safe :
public enum EasySingleton{
INSTANCE;
}
and
/**
* Singleton pattern example with Double checked Locking
*/
public class DoubleCheckedLockingSingleton{
private volatile DoubleCheckedLockingSingleton INSTANCE;
private DoubleCheckedLockingSingleton(){}
public DoubleCheckedLockingSingleton getInstance(){
if(INSTANCE == null){
synchronized(DoubleCheckedLockingSingleton.class){
//double checking Singleton instance
if(INSTANCE == null){
INSTANCE = new DoubleCheckedLockingSingleton();
}
}
}
return INSTANCE;
}
}
both are similar and it handled Serialization by themselves by implementing
//readResolve to prevent another instance of Singleton
private Object readResolve(){
return INSTANCE;
}
To add a linked text in a text view, you can use the "footer_text" string resource example below and also edit your onCreate method for your activity, you can use the example below
string.xml
<?xml version="1.0" charset="utf-8"?>
<resources>
<string name="app_name">Name of My Application</string>
<string name="footer_text">
<a href="https://www.google.com/tos">Terms of Service</a>
<a href="https://www.google.com/contact">Contact</a>
<a href="https://www.google.com/privacy">Privacy Policy</a>
</string>
</resources>
MainActivity.java
...
@Override
public void onCreate(Bundle savedInstance) {
super.onCreate(savedInstance);
setContentView(R.layout.activity_main);
TextView textView = findViewById(R.id.textViewLink);
textView.setMovementMethod(LinkMovermentMethod.getInstance());
}
....
In order to move a View anywhere on the screen, I would recommend placing it in a full screen layout. By doing so, you won't have to worry about clippings or relative coordinates.
You can try this sample code:
main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" android:id="@+id/rootLayout">
<Button
android:id="@+id/btn1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="MOVE" android:layout_centerHorizontal="true"/>
<ImageView
android:id="@+id/img1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher" android:layout_marginLeft="10dip"/>
<ImageView
android:id="@+id/img2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher" android:layout_centerVertical="true" android:layout_alignParentRight="true"/>
<ImageView
android:id="@+id/img3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher" android:layout_marginLeft="60dip" android:layout_alignParentBottom="true" android:layout_marginBottom="100dip"/>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" android:clipChildren="false" android:clipToPadding="false">
<ImageView
android:id="@+id/img4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher" android:layout_marginLeft="60dip" android:layout_marginTop="150dip"/>
</LinearLayout>
</RelativeLayout>
Your activity
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
((Button) findViewById( R.id.btn1 )).setOnClickListener( new OnClickListener()
{
@Override
public void onClick(View v)
{
ImageView img = (ImageView) findViewById( R.id.img1 );
moveViewToScreenCenter( img );
img = (ImageView) findViewById( R.id.img2 );
moveViewToScreenCenter( img );
img = (ImageView) findViewById( R.id.img3 );
moveViewToScreenCenter( img );
img = (ImageView) findViewById( R.id.img4 );
moveViewToScreenCenter( img );
}
});
}
private void moveViewToScreenCenter( View view )
{
RelativeLayout root = (RelativeLayout) findViewById( R.id.rootLayout );
DisplayMetrics dm = new DisplayMetrics();
this.getWindowManager().getDefaultDisplay().getMetrics( dm );
int statusBarOffset = dm.heightPixels - root.getMeasuredHeight();
int originalPos[] = new int[2];
view.getLocationOnScreen( originalPos );
int xDest = dm.widthPixels/2;
xDest -= (view.getMeasuredWidth()/2);
int yDest = dm.heightPixels/2 - (view.getMeasuredHeight()/2) - statusBarOffset;
TranslateAnimation anim = new TranslateAnimation( 0, xDest - originalPos[0] , 0, yDest - originalPos[1] );
anim.setDuration(1000);
anim.setFillAfter( true );
view.startAnimation(anim);
}
The method moveViewToScreenCenter
gets the View's absolute coordinates and calculates how much distance has to move from its current position to reach the center of the screen. The statusBarOffset
variable measures the status bar height.
I hope you can keep going with this example. Remember that after the animation your view's position is still the initial one. If you tap the MOVE button again and again the same movement will repeat. If you want to change your view's position do it after the animation is finished.
Is this a commercial application or some hobbyist / open source software?
I'm asking this because in my experience, all free .NET Excel handling alternatives have serious problems, for different reasons. For hobbyist things, I usually end up porting jExcelApi from Java to C# and using it.
But if this is a commercial application, you would be better off by purchasing a third party library, like Aspose.Cells. Believe me, it totally worths it as it saves a lot of time and time ain't free.
Query:
SELECT t1.*
FROM lms_attendance t1
WHERE t1.time = (SELECT MAX(t2.time)
FROM lms_attendance t2
WHERE t2.user = t1.user)
Result:
| ID | USER | TIME | IO |
--------------------------------
| 2 | 9 | 1370931664 | out |
| 3 | 6 | 1370932128 | out |
| 5 | 12 | 1370933037 | in |
Solution which gonna work everytime:
SELECT t1.*
FROM lms_attendance t1
WHERE t1.id = (SELECT t2.id
FROM lms_attendance t2
WHERE t2.user = t1.user
ORDER BY t2.id DESC
LIMIT 1)
There are no quotes in the return value, only in the default output from print() when you display the value. Try
> print(char[1], quote=FALSE)
[1] one
or
> cat(char[1], "\n")
one
to see the value without quotes.
Add a WHERE
clause
UPDATE dbo.TestStudents
SET LASTNAME = CASE
WHEN LASTNAME = 'AAA' THEN 'BBB'
WHEN LASTNAME = 'CCC' THEN 'DDD'
WHEN LASTNAME = 'EEE' THEN 'FFF'
ELSE LASTNAME
END
WHERE LASTNAME IN ('AAA', 'CCC', 'EEE')
Using dplyr you can:
df <- df %>% dplyr:: select(grep("ABC", names(df)), grep("XYZ", names(df)))
Neither way is necessarily correct or incorrect, they are just two different kinds of class elements:
__init__
method are static elements; they belong to the class.__init__
method are elements of the object (self
); they don't belong to the class.You'll see it more clearly with some code:
class MyClass:
static_elem = 123
def __init__(self):
self.object_elem = 456
c1 = MyClass()
c2 = MyClass()
# Initial values of both elements
>>> print c1.static_elem, c1.object_elem
123 456
>>> print c2.static_elem, c2.object_elem
123 456
# Nothing new so far ...
# Let's try changing the static element
MyClass.static_elem = 999
>>> print c1.static_elem, c1.object_elem
999 456
>>> print c2.static_elem, c2.object_elem
999 456
# Now, let's try changing the object element
c1.object_elem = 888
>>> print c1.static_elem, c1.object_elem
999 888
>>> print c2.static_elem, c2.object_elem
999 456
As you can see, when we changed the class element, it changed for both objects. But, when we changed the object element, the other object remained unchanged.
No there is no difference at all in functionality.
(The same is true for all other DBMS - most of them support both styles):
Here is the current SQL reference: https://docs.oracle.com/database/121/SQLRF/conditions002.htm#CJAGAABC
The SQL standard only defines a single operator for "not equals" and that is <>
More generic way in case qs
has more than one dictionaries:
[int(v) for lst in qs for k, v in lst.items()]
--
>>> qs = [{u'a': 15L, u'b': 9L, u'a': 16L}, {u'a': 20, u'b': 35}]
>>> result_list = [int(v) for lst in qs for k, v in lst.items()]
>>> result_list
[16, 9, 20, 35]
It's not possible to configure an IIS managed handler to run in classic mode. You should be running IIS in integrated mode if you want to do that.
You can learn more about modules, handlers and IIS modes in the following blog post:
IIS 7.0, ASP.NET, pipelines, modules, handlers, and preconditions
For handlers, if you set preCondition="integratedMode" in the mapping, the handler will only run in integrated mode. On the other hand, if you set preCondition="classicMode" the handler will only run in classic mode. And if you omit both of these, the handler can run in both modes, although this is not possible for a managed handler.
One of the possible solution you might be interested in. Traversing an array of chars from right to left and vise versa in one loop.
public static string WordsToCapitalLetter(string value)
{
if (string.IsNullOrWhiteSpace(value))
{
throw new ArgumentException("value");
}
int inputValueCharLength = value.Length;
var valueAsCharArray = value.ToCharArray();
int min = 0;
int max = inputValueCharLength - 1;
while (max > min)
{
char left = value[min];
char previousLeft = (min == 0) ? left : value[min - 1];
char right = value[max];
char nextRight = (max == inputValueCharLength - 1) ? right : value[max - 1];
if (char.IsLetter(left) && !char.IsUpper(left) && char.IsWhiteSpace(previousLeft))
{
valueAsCharArray[min] = char.ToUpper(left);
}
if (char.IsLetter(right) && !char.IsUpper(right) && char.IsWhiteSpace(nextRight))
{
valueAsCharArray[max] = char.ToUpper(right);
}
min++;
max--;
}
return new string(valueAsCharArray);
}
you can set it in .bashrc
PATH=$PATH:/opt/ActiveTcl-8.5/bin;export PATH;
If you want the key and value when iterating, you can use a for...of loop with Object.entries.
const myObj = {a: 1, b: 2}
for (let [key, value] of Object.entries(myObj)) {
console.log(`key=${key} value=${value}`)
}
// output:
// key=a value=1
// key=b value=2
Okay I fixed this thing. Had to first convert the projects to Maven Projects, then remove them from the Eclipse workspace, and then re-import them.
The redirect is one option. One thing you can try is to create a very simple index page that you place at the root of the WAR which does nothing else but redirecting to your controller like
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<c:redirect url="/welcome.html"/>
Then you map your controller with that URL with something like
@Controller("loginController")
@RequestMapping(value = "/welcome.html")
public class LoginController{
...
}
Finally, in web.xml, to have your (new) index JSP accessible, declare
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
Simply cleaning the project solved it for me.
My project is a C++ application (not a shared library). I randomly got this error after a lot of successful builds.
First make sure you have SessionMiddleware
and AuthenticationMiddleware
middlewares added to your MIDDLEWARE_CLASSES
setting.
The current user
is in request
object, you can get it by:
def sample_view(request):
current_user = request.user
print current_user.id
request.user
will give you a User
object representing the currently logged-in user. If a user isn't currently logged in, request.user
will be set to an instance of AnonymousUser
. You can tell them apart with the field is_authenticated
, like so:
if request.user.is_authenticated:
# Do something for authenticated users.
else:
# Do something for anonymous users.
Alternatively, you could do the following:
Dictionary<FunkyAttributesEnum, string> description = new Dictionary<FunkyAttributesEnum, string>()
{
{ FunkyAttributesEnum.NameWithoutSpaces1, "Name With Spaces1" },
{ FunkyAttributesEnum.NameWithoutSpaces2, "Name With Spaces2" },
};
And get the description with the following:
string s = description[FunkyAttributesEnum.NameWithoutSpaces1];
In my opinion this is a more efficient way of doing what you want to accomplish, as no reflection is needed..
The parent component can manage child state passing a prop to child and the child convert this prop in state using componentWillReceiveProps.
class ParentComponent extends Component {
state = { drawerOpen: false }
toggleChildMenu = () => {
this.setState({ drawerOpen: !this.state.drawerOpen })
}
render() {
return (
<div>
<button onClick={this.toggleChildMenu}>Toggle Menu from Parent</button>
<ChildComponent drawerOpen={this.state.drawerOpen} />
</div>
)
}
}
class ChildComponent extends Component {
constructor(props) {
super(props)
this.state = {
open: false
}
}
componentWillReceiveProps(props) {
this.setState({ open: props.drawerOpen })
}
toggleMenu() {
this.setState({
open: !this.state.open
})
}
render() {
return <Drawer open={this.state.open} />
}
}
Reflection e.g.:
public class PrivateObject {
private String privateString = null;
public PrivateObject(String privateString) {
this.privateString = privateString;
}
}
PrivateObject privateObject = new PrivateObject("The Private Value");
Field privateStringField = PrivateObject.class.
getDeclaredField("privateString");
privateStringField.setAccessible(true);
String fieldValue = (String) privateStringField.get(privateObject);
System.out.println("fieldValue = " + fieldValue);
just wrap your content with a table like this:
<table width="100%" height="100%">
<tr align="center">
<th align="center">
text
</th>
</tr>
</table><
I know my answer is late to the party. But the way i solved is bit different than all the answers.
I had a situation, i need to clone a row in a table except few columns. Those few will have new values. This process should support automatically for future changes to the table. This implies, clone the record without specifying any column names.
My approach is to,
declare @columnsToCopyValues varchar(max), @query varchar(max)
SET @columnsToCopyValues = ''
--Get all the columns execpt Identity columns and Other columns to be excluded. Say IndentityColumn, Column1, Column2
Select @columnsToCopyValues = @columnsToCopyValues + [name] + ', ' from sys.columns c where c.object_id = OBJECT_ID('YourTableName') and name not in ('IndentityColumn','Column1','Column2')
Select @columnsToCopyValues = SUBSTRING(@columnsToCopyValues, 0, LEN(@columnsToCopyValues))
print @columnsToCopyValues
Select @query = CONCAT('insert into YourTableName (',@columnsToCopyValues,', Column1, Column2) select ', @columnsToCopyValues, ',''Value1'',''Value2'',', ' from YourTableName where IndentityColumn =''' , @searchVariable,'''')
print @query
exec (@query)
I'm not sure but I commonly initialize an array to "" in that case I don't need worry about the null end of the string.
main() {
void something(char[]);
char s[100] = "";
something(s);
printf("%s", s);
}
void something(char s[]) {
// ... do something, pass the output to s
// no need to add s[i] = '\0'; because all unused slot is already set to '\0'
}
One thing that should be considered is licensing.
Notepad++ is free (as in speech and as in beer) for perpetual use, released under the GPL license, whereas Sublime Text 2 requires a license.
To quote the Sublime Text 2 website:
..a license must be purchased for continued use. There is currently no enforced time limit for the evaluation.
The same is now true of Sublime Text 3, and a paid upgrade will be needed for future versions.
Upgrade Policy A license is valid for Sublime Text 3, and includes all point updates, as well as access to prior versions (e.g., Sublime Text 2). Future major versions, such as Sublime Text 4, will be a paid upgrade.
This licensing requirement is still correct as of Dec 2019.
In addition to running
php -m
to get the list of installed php modules, you will probably find it helpful to get the list of the currently installed php packages in Ubuntu:
sudo dpkg --get-selections | grep -v deinstall | grep php
This is helpful since Ubuntu makes php modules available via packages.
You can then install the needed modules by selecting from the available Ubuntu php packages, which you can view by running:
sudo apt-cache search php | grep "^php5-"
Or, for Ubuntu 16.04 and higher:
sudo apt-cache search php | grep "^php7"
As you have mentioned, there is plenty of information available on the actual installation of the packages that you might require, so I won't go into detail about that here.
It is possible that an installed module has been disabled. In that case, it won't show up when running php -m
, but it will show up in the list of installed Ubuntu packages.
Modules can be enabled/disabled via the php5enmod
tool (phpenmod
on later distros) which is part of the php-common
package.
Ubuntu 12.04:
Enabled modules are symlinked in /etc/php5/conf.d
Ubuntu 12.04: (with PHP 5.4+)
To enable an installed module:
php5enmod <modulename>
To disable an installed module:
php5dismod <modulename>
Ubuntu 16.04 (php7) and higher:
To enable an installed module:
phpenmod <modulename>
To disable an installed module:
phpdismod <modulename>
Reload Apache
Remember to reload Apache2 after enabling/disabling:
service apache2 reload
Github has a great boilerplate .gitignore
# Byte-compiled / optimized / DLL files
__pycache__/
*.py[cod]
# C extensions
*.so
# Distribution / packaging
bin/
build/
develop-eggs/
dist/
eggs/
lib/
lib64/
parts/
sdist/
var/
*.egg-info/
.installed.cfg
*.egg
# Installer logs
pip-log.txt
pip-delete-this-directory.txt
# Unit test / coverage reports
.tox/
.coverage
.cache
nosetests.xml
coverage.xml
# Translations
*.mo
# Mr Developer
.mr.developer.cfg
.project
.pydevproject
# Rope
.ropeproject
# Django stuff:
*.log
*.pot
# Sphinx documentation
docs/_build/
It's a object to put in the from that return 1 empty row. For example: select 1 from dual; returns 1
select 21+44 from dual; returns 65
select [sequence].nextval from dual; returns the next value from the sequence.
You can use IIF for a similar result.
Note that you can nest the IIF statements to handle multiple cases. There is an example here: http://forums.devshed.com/database-management-46/query-ms-access-iif-statement-multiple-conditions-358130.html
SELECT IIf([Combinaison] = "Mike", 12, IIf([Combinaison] = "Steve", 13)) As Answer
FROM MyTable;
Based on your question history, you're using JSF 2.x. So, here's a JSF 2.x targeted answer. In JSF 1.x you would be forced to wrap item values/labels in ugly SelectItem
instances. This is fortunately not needed anymore in JSF 2.x.
To answer your question directly, just use <f:selectItems>
whose value
points to a List<T>
property which you preserve from the DB during bean's (post)construction. Here's a basic kickoff example assuming that T
actually represents a String
.
<h:selectOneMenu value="#{bean.name}">
<f:selectItems value="#{bean.names}" />
</h:selectOneMenu>
with
@ManagedBean
@RequestScoped
public class Bean {
private String name;
private List<String> names;
@EJB
private NameService nameService;
@PostConstruct
public void init() {
names = nameService.list();
}
// ... (getters, setters, etc)
}
Simple as that. Actually, the T
's toString()
will be used to represent both the dropdown item label and value. So, when you're instead of List<String>
using a list of complex objects like List<SomeEntity>
and you haven't overridden the class' toString()
method, then you would see com.example.SomeEntity@hashcode
as item values. See next section how to solve it properly.
Also note that the bean for <f:selectItems>
value does not necessarily need to be the same bean as the bean for <h:selectOneMenu>
value. This is useful whenever the values are actually applicationwide constants which you just have to load only once during application's startup. You could then just make it a property of an application scoped bean.
<h:selectOneMenu value="#{bean.name}">
<f:selectItems value="#{data.names}" />
</h:selectOneMenu>
Whenever T
concerns a complex object (a javabean), such as User
which has a String
property of name
, then you could use the var
attribute to get hold of the iteration variable which you in turn can use in itemValue
and/or itemLabel
attribtues (if you omit the itemLabel
, then the label becomes the same as the value).
Example #1:
<h:selectOneMenu value="#{bean.userName}">
<f:selectItems value="#{bean.users}" var="user" itemValue="#{user.name}" />
</h:selectOneMenu>
with
private String userName;
private List<User> users;
@EJB
private UserService userService;
@PostConstruct
public void init() {
users = userService.list();
}
// ... (getters, setters, etc)
Or when it has a Long
property id
which you would rather like to set as item value:
Example #2:
<h:selectOneMenu value="#{bean.userId}">
<f:selectItems value="#{bean.users}" var="user" itemValue="#{user.id}" itemLabel="#{user.name}" />
</h:selectOneMenu>
with
private Long userId;
private List<User> users;
// ... (the same as in previous bean example)
Whenever you would like to set it to a T
property in the bean as well and T
represents an User
, then you would need to bake a custom Converter
which converts between User
and an unique string representation (which can be the id
property). Do note that the itemValue
must represent the complex object itself, exactly the type which needs to be set as selection component's value
.
<h:selectOneMenu value="#{bean.user}" converter="#{userConverter}">
<f:selectItems value="#{bean.users}" var="user" itemValue="#{user}" itemLabel="#{user.name}" />
</h:selectOneMenu>
with
private User user;
private List<User> users;
// ... (the same as in previous bean example)
and
@ManagedBean
@RequestScoped
public class UserConverter implements Converter {
@EJB
private UserService userService;
@Override
public Object getAsObject(FacesContext context, UIComponent component, String submittedValue) {
if (submittedValue == null || submittedValue.isEmpty()) {
return null;
}
try {
return userService.find(Long.valueOf(submittedValue));
} catch (NumberFormatException e) {
throw new ConverterException(new FacesMessage(String.format("%s is not a valid User ID", submittedValue)), e);
}
}
@Override
public String getAsString(FacesContext context, UIComponent component, Object modelValue) {
if (modelValue == null) {
return "";
}
if (modelValue instanceof User) {
return String.valueOf(((User) modelValue).getId());
} else {
throw new ConverterException(new FacesMessage(String.format("%s is not a valid User", modelValue)), e);
}
}
}
(please note that the Converter
is a bit hacky in order to be able to inject an @EJB
in a JSF converter; normally one would have annotated it as @FacesConverter(forClass=User.class)
, but that unfortunately doesn't allow @EJB
injections)
Don't forget to make sure that the complex object class has equals()
and hashCode()
properly implemented, otherwise JSF will during render fail to show preselected item(s), and you'll on submit face Validation Error: Value is not valid.
public class User {
private Long id;
@Override
public boolean equals(Object other) {
return (other != null && getClass() == other.getClass() && id != null)
? id.equals(((User) other).id)
: (other == this);
}
@Override
public int hashCode() {
return (id != null)
? (getClass().hashCode() + id.hashCode())
: super.hashCode();
}
}
Head to this answer: Implement converters for entities with Java Generics.
The JSF utility library OmniFaces offers a special converter out the box which allows you to use complex objects in <h:selectOneMenu>
without the need to create a custom converter. The SelectItemsConverter
will simply do the conversion based on readily available items in <f:selectItem(s)>
.
<h:selectOneMenu value="#{bean.user}" converter="omnifaces.SelectItemsConverter">
<f:selectItems value="#{bean.users}" var="user" itemValue="#{user}" itemLabel="#{user.name}" />
</h:selectOneMenu>
This might have been asked before. See Can I add jars to maven 2 build classpath without installing them?
In a nutshell: include your jar as dependency with system scope. This requires specifying the absolute path to the jar.
See also http://maven.apache.org/guides/introduction/introduction-to-dependency-mechanism.html
size_t is unsigned int. so whenever you want unsigned int you can use it.
I use it when i want to specify size of the array , counter ect...
void * operator new (size_t size); is a good use of it.
You could also do this is plain in html with a meta tag:
<html>
<head>
<meta http-equiv="refresh" content="0;url=new.aspx" />
</head>
<body>
</body>
</html>
Make sure your the ActionBar Home Button is enabled in the Activity:
@Override
public void onBackPressed() {
...
super.onBackPressed();
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
...
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
...
getActionBar().setDisplayHomeAsUpEnabled(true);
}
Example MainActivity
that extends ActionBarActivity
:
public class MainActivity extends ActionBarActivity {
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Back button
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
// API 5+ solution
onBackPressed();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
This way all the activities you want can have the backpress.
http://developer.android.com/training/implementing-navigation/ancestral.html
AndroidManifest.xml
:
<application ... >
...
<!-- The main/home activity (it has no parent activity) -->
<activity
android:name="com.example.myfirstapp.MainActivity" ...>
...
</activity>
<!-- A child of the main activity -->
<activity
android:name="com.example.myfirstapp.DisplayMessageActivity"
android:label="@string/title_activity_display_message"
android:parentActivityName="com.example.myfirstapp.MainActivity" >
<!-- The meta-data element is needed for versions lower than 4.1 -->
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.example.myfirstapp.MainActivity" />
</activity>
</application>
Example MainActivity
that extends ActionBarActivity
:
public class MainActivity extends ActionBarActivity {
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Back button
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
// Respond to the action bar's Up/Home button
case android.R.id.home:
NavUtils.navigateUpFromSameTask(this);
return true;
}
return super.onOptionsItemSelected(item);
}
}
$<?
$db = sqlite_open('mysqlitedb');
$cols = sqlite_fetch_column_types('form name'$db, SQLITE_ASSOC);
foreach ($cols as $column => $type) {
echo "Column: $column Type: $type\n";
}
You need to use the option -f
:
$ grep -f A B
The option -F
does a fixed string search where as -f
is for specifying a file of patterns. You may want both if the file only contains fixed strings and not regexps.
$ grep -Ff A B
You may also want the -w
option for matching whole words only:
$ grep -wFf A B
Read man grep
for a description of all the possible arguments and what they do.
using html5 data attribute...
try this
Html
Product price: $<span id="product_price">500</span>
<br>Total price: $500
<br>
<input type="button" data-quantity="2" value="2
Qty">
<input type="button" data-quantity="4" class="mnozstvi_sleva" value="4
Qty">
<br>Total
<input type="text" id="count" value="1">
JS
$(function(){
$('input:button').click(function () {
$('#count').val($(this).data('quantity') * $('#product_price').text());
});
});
Just wanted to mention, that you also may have to set the https_proxy
OS environment variable in case https URLs need to be accessed.
In my case it was not obvious to me and I tried for hours to discover this.
My use case: Win 7, jython-standalone-2.5.3.jar, setuptools installation via ez_setup.py
So, after I created my question, I got this related list on the right with a similar issue: Organize routes in Node.js.
The answer in that post linked to the Express repo on GitHub and suggests to look at the 'route-separation' example.
This helped me change my code, and I now have it working. - Thanks for your comments.
My implementation ended up looking like this;
I require my routes in the app.js:
var express = require('express')
, site = require('./site')
, wiki = require('./wiki');
And I add my routes like this:
app.get('/', site.index);
app.get('/wiki/:id', wiki.show);
app.get('/wiki/:id/edit', wiki.edit);
I have two files called wiki.js and site.js in the root of my app, containing this:
exports.edit = function(req, res) {
var wiki_entry = req.params.id;
res.render('wiki/edit', {
title: 'Editing Wiki',
wiki: wiki_entry
})
}
This is not strictly true as the NTFS filesystem supports paths up to 32k characters. You can use the win32 api and "\\?\
" prefix the path to use greater than 260 characters.
A detailed explanation of long path from the .Net BCL team blog.
A small excerpt highlights the issue with long paths
Another concern is inconsistent behavior that would result by exposing long path support. Long paths with the
\\?\
prefix can be used in most of the file-related Windows APIs, but not all Windows APIs. For example, LoadLibrary, which maps a module into the address of the calling process, fails if the file name is longer than MAX_PATH. So this means MoveFile will let you move a DLL to a location such that its path is longer than 260 characters, but when you try to load the DLL, it would fail. There are similar examples throughout the Windows APIs; some workarounds exist, but they are on a case-by-case basis.
In your css file add following.
ul{
list-style-type: none;
}
In C++, you can use the global function std::getline, it takes a string and a stream and an optional delimiter and reads 1 line until the delimiter specified is reached. An example:
#include <string>
#include <iostream>
#include <fstream>
int main() {
std::ifstream input("filename.txt");
std::string line;
while( std::getline( input, line ) ) {
std::cout<<line<<'\n';
}
return 0;
}
This program reads each line from a file and echos it to the console.
For C you're probably looking at using fgets
, it has been a while since I used C, meaning I'm a bit rusty, but I believe you can use this to emulate the functionality of the above C++ program like so:
#include <stdio.h>
int main() {
char line[1024];
FILE *fp = fopen("filename.txt","r");
//Checks if file is empty
if( fp == NULL ) {
return 1;
}
while( fgets(line,1024,fp) ) {
printf("%s\n",line);
}
return 0;
}
With the limitation that the line can not be longer than the maximum length of the buffer that you're reading in to.
Year back i also faced same problem on mysql5.7 version and ibdata1 occupied 150 Gb. so i added undo tablespaces
Take Mysqldump backup
Stop mysql service
Remove all data from data dir
Add below undo tablespace parameter in current my.cnf
#undo tablespace
innodb_undo_directory = /var/lib/mysql/
innodb_rollback_segments = 128
innodb_undo_tablespaces = 3
innodb_undo_logs = 128
innodb_max_undo_log_size=1G
innodb_undo_log_truncate = ON
Start mysql service
store mysqldump backup
Problem resolved !!
After your comments this actually makes perfect sense why you don't get a histogram of each different value. There are 1.4 million rows, and ten discrete buckets. So apparently each bucket is exactly 10% (to within what you can see in the plot).
A quick rerun of your data:
In [25]: df.hist(column='Trip_distance')
Prints out absolutely fine.
The df.hist
function comes with an optional keyword argument bins=10
which buckets the data into discrete bins. With only 10 discrete bins and a more or less homogeneous distribution of hundreds of thousands of rows, you might not be able to see the difference in the ten different bins in your low resolution plot:
In [34]: df.hist(column='Trip_distance', bins=50)
I'd use
files=(*)
And then if you need data about the file, such as size, use the stat
command on each file.
None of the existing answers address the case of a container that exited (and can't be restarted) and/or doesn't have any shell installed (e.g. distroless ones). This one works as long has you have root access to the Docker host.
For a real manual inspection, find out the layer IDs first:
docker inspect my-container | jq '.[0].GraphDriver.Data'
In the output, you should see something like
"MergedDir": "/var/lib/docker/overlay2/03e8df748fab9526594cfdd0b6cf9f4b5160197e98fe580df0d36f19830308d9/merged"
Navigate into this folder (as root) to find the current visible state of the container filesystem.
Instead of getting all the table columns using * in your sql statement, you use to specify the table columns you need.
You can use the SQL statement something like:
SELECT CONCAT(FIRSTNAME, ' ', LASTNAME) AS FIRSTNAME FROM customer;
BTW, why couldn't you use FullName instead of FirstName? Like this:
SELECT CONCAT(FIRSTNAME, ' ', LASTNAME) AS 'CUSTOMER NAME' FROM customer;
NullPointerException
is a run-time exception which is not recommended to catch it, but instead avoid it:
if(someVariable != null) someVariable.doSomething();
else
{
// do something else
}
This is to add to of Gilles' Answer. There are many ways to get this done but personally I prefer something lightweight, easy to remember and universally available (e.g. come with standard LTS installations of your preferred Linux flavor or easy to install) on common *nix systems.
Here are the options in their preferred order:
Python Json.tool module
echo '{"foo": "lorem", "bar": "ipsum"}' | python -mjson.tool
pros: almost available everywhere; cons: no color coding
jq (may require one time installation)
echo '{"foo": "lorem", "bar": "ipsum"}' | jq
cons: needs to install jq; pros: color coding and versatile
json_pp (available in Ubuntu 16.04 LTS)
echo '{"foo": "lorem", "bar": "ipsum"}' | json_pp
For Ruby users
gem install jsonpretty
echo '{"foo": "lorem", "bar": "ipsum"}' | jsonpretty
Java programming language enums
are far more powerful than their counterparts in other languages, which are little more than glorified integers. The new enum declaration defines a full-fledged class (dubbed an enum type). In addition to solving all the problems(Not typesafe, No namespace, Brittleness and Printed values are uninformative
) that exists with following int Enum pattern which was used prior to java 5.0 :
public static final int SEASON_WINTER = 0;
it also allows you to add arbitrary methods and fields to an enum type, to implement arbitrary interfaces, and more. Enum types provide high-quality implementations of all the Object methods. They are Comparable
and Serializable
, and the serial form is designed to withstand arbitrary changes in the enum type. You can also use Enum in switch
case.
Read the full article on Java Enums http://docs.oracle.com/javase/1.5.0/docs/guide/language/enums.html for more details.
I think if you closed a program
taskkill /f /im "winamp.exe"
//....(winamp.exe is example)...
end, so if you want to start a program that you can use
start "" /normal winamp.exe
(/norma,/max/min are that process value cpu)
ALSO
if you want command line without openning an new window you write that
/B is Start application without creating a new window. The application has ^C handling ignored. Unless the application enables ^C processing, ^Break is the only way to interrupt the application.
Why not just doing it this way?
DateTime dt1 = new DateTime(2009, 6, 1);
DateTime dt2 = DateTime.Now;
double totalminutes = (dt2 - dt1).TotalMinutes;
Hope this helps.
String characters are runes, so to print them, you have to turn them back into String.
fmt.Print(string("HELLO"[1]))
Something like the standard Collection.toArray(T[]) should do what you need (note that ArrayList
implements Collection
):
TypeA[] array = a.toArray(new TypeA[a.size()]);
On a side note, you should consider defining a
to be of type List<TypeA>
rather than ArrayList<TypeA>
, this avoid some implementation specific definition that may not really be applicable for your application.
Also, please see this question about the use of a.size()
instead of 0
as the size of the array passed to a.toArray(TypeA[])
You might want to look into a Python package manager like pip. If you don't want to use a Python package manager, you should be able to download M2Crypto and build/compile/install over the old installation.
The Tumbler V2 API provides a pure JSON response but requires jumping through a few hoops:
Example URL: http://api.tumblr.com/v2/blog/puppygifs.tumblr.com/posts/photo?api_key=YOUR_KEY_HERE
Result showing tree structure in Fiddler:
As a side note, here is a better alternative to implement the same sorting:
alist.sort(key=lambda x: x.foo)
Or alternatively:
import operator
alist.sort(key=operator.attrgetter('foo'))
Check out the Sorting How To, it is very useful.
Here is the code for palindrome check without creating many strings
public static boolean isPalindrome(String str){
return isPalindrome(str,0,str.length()-1);
}
public static boolean isPalindrome(String str, int start, int end){
if(start >= end)
return true;
else
return (str.charAt(start) == str.charAt(end)) && isPalindrome(str, start+1, end-1);
}
use the variable, Oracle does not support SQL in that context without an INTO. With a properly named variable your code will be more legible anyway.
That's your jQuery API problem, not your script. There is not much to worry about.
The ability to search commits has recently been added to GitHub.
To search for a hash, just enter at least the first 7 characters in the search box. Then on the results page, click the "Commits" tab to see matching commits (but only on the default branch, usually master
), or the "Issues" tab to see pull requests containing the commit.
To be more explicit you can add the hash:
prefix to the search, but it's not really necessary.
There is also a REST API (at the time of writing it is still in preview).
Some Linux based MySQL installations require case sensitive. Work around is to apply nativeQuery
.
@Query(value = 'select ID, CLUMN2, CLUMN3 FROM VENDOR c where c.ID = :ID', nativeQuery = true)
To summarise some of the current options for traversing/filtering JSON data, and provide some syntax examples...
JSPath
.automobiles{.maker === "Honda" && .year > 2009}.model
json:select() (inspired more by CSS selectors)
.automobiles .maker:val("Honda") .model
JSONPath (inspired more by XPath)
$.automobiles[?(@.maker='Honda')].model
I think JSPath looks the nicest, so I'm going to try and integrate it with my AngularJS + CakePHP app.
(I originally posted this answer in another thread but thought it would be useful here, also.)
If you had two Strings and compared them using == by calling the getClass() method on them, it would return true. What you get is a reference on the same object.
This is because they are both references on the same class object. This is true for all classes in a java application. Java only loads the class once, so you have only one instance of a given class at a given time.
String hello = "Hello";
String world = "world";
if (hello.getClass() == world.getClass()) {
System.out.println("true");
} // prints true
Like this :
String[] words = {"000", "aaa", "bbb", "ccc", "ddd"};
List<String> wordList = new ArrayList<String>(Arrays.asList(words));
or
List myList = new ArrayList();
String[] words = {"000", "aaa", "bbb", "ccc", "ddd"};
Collections.addAll(myList, words);
I wanted to suppress the prompt that asks if you wish to update links to another workbook when my workbook is manually opened in Excel (as opposed to opening it programmatically via VBA). I tried including: Application.AskToUpdateLinks = False
as the first line in my Auto_Open()
macro but that didn't work. I discovered however that if you put it instead in the Workbook_Open()
function in the ThisWorkbook
module, it works brilliantly - the dialog is suppressed but the update still occurs silently in the background.
Private Sub Workbook_Open()
' Suppress dialog & update automatically without asking
Application.AskToUpdateLinks = False
End Sub
Here is the solution I tried with Gradle 6.7
Runnable fat Jar (with all dependent libraries copied to the jar)
task fatJar(type: Jar) {
manifest {
attributes 'Main-Class': 'com.example.gradle.App'
}
from {
configurations.compile.collect { it.isDirectory() ? it : zipTree(it) }
} with jar
}
Runnable jar with all dependencies copied to a directory and adding the classpath to the manifest
def dependsDir = "${buildDir}/libs/dependencies/"
task copyDependencies(type: Copy) {
from configurations.compile
into "${dependsDir}"
}
task createJar(dependsOn: copyDependencies, type: Jar) {
manifest {
attributes('Main-Class': 'com.example.gradle.App',
'Class-Path': configurations.compile.collect { 'dependencies/' + it.getName() }.join(' ')
)
}
with jar
}
How to use ?
gradle fatJar
//create fatJargradle createJar
// create jar with dependencies copied.More details : https://jafarmlp.medium.com/a-simple-java-project-with-gradle-2c323ae0e43d
I'm using bootstrap.
I used css parameters.
.table {
table-layout:fixed;
}
.table td {
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
and bootstrap grid system parameters, like this.
<th class="col-sm-2">Name</th>
<td class="col-sm-2">hoge</td>
Use nohup
if your background job takes a long time to finish or you just use SecureCRT or something like it login the server.
Redirect the stdout and stderr to /dev/null
to ignore the output.
nohup /path/to/your/script.sh > /dev/null 2>&1 &
You can do exactly the same thing in R with two more characters:
x <- 0:9
x[-5:-1]
[1] 5 6 7 8 9
or
x[-(1:5)]
For those still looking a solved it this way inside a class with a function sortByDate, see the code below
<?php
class ContactsController
{
public function __construct()
{
//
}
function sortByDate($key)
{
return function ($a, $b) use ($key) {
$t1 = strtotime($a[$key]);
$t2 = strtotime($b[$key]);
return $t2-$t1;
};
}
public function index()
{
$data[] = array('contact' => '434343434', 'name' => 'dickson','updated_at' =>'2020-06-11 12:38:23','created_at' =>'2020-06-11 12:38:23');
$data[] = array('contact' => '434343434', 'name' => 'dickson','updated_at' =>'2020-06-16 12:38:23','created_at' =>'2020-06-10 12:38:23');
$data[] = array('contact' => '434343434', 'name' => 'dickson','updated_at' =>'2020-06-7 12:38:23','created_at' =>'2020-06-9 12:38:23');
usort($data, $this->sortByDate('updated_at'));
//usort($data, $this->sortByDate('created_at'));
echo $data;
}
}
If you want something a little bit more readable, you can try this:
<button @click="[click1($event), click2($event)]">
Multiple
</button>
To me, this solution feels more Vue-like hope you enjoy
Here you go. this should work.
questionFrame.frame = CGRectMake(0 , 0, self.view.frame.width, self.view.frame.height * 0.7)
answerFrame.frame = CGRectMake(0 , self.view.frame.height * 0.7, self.view.frame.width, self.view.frame.height * 0.3)
You can do something like this below:
//when the Add Field button is clicked
$("#add").click(function (e) {
//Append a new row of code to the "#items" div
$("#items").append('<div><input type="text" name="input[]"><button class="delete">Delete</button></div>');
});
For detailed tutorial http://voidtricks.com/jquery-add-remove-input-fields/
Instead of declaring a function in your scope, as suggested by Alex, you can convert it to a simple filter :
angular.module('myApp')
.filter('to_trusted', ['$sce', function($sce){
return function(text) {
return $sce.trustAsHtml(text);
};
}]);
Then you can use it like this :
<div ng-bind-html="preview_data.preview.embed.html | to_trusted"></div>
And here is a working example : http://jsfiddle.net/leeroy/6j4Lg/1/
lambda
is an anonymous function, it is equivalent to:
def func(p):
return p.totalScore
Now max
becomes:
max(players, key=func)
But as def
statements are compound statements they can't be used where an expression is required, that's why sometimes lambda
's are used.
Note that lambda
is equivalent to what you'd put in a return statement of a def
. Thus, you can't use statements inside a lambda
, only expressions are allowed.
What does max
do?
max(a, b, c, ...[, key=func]) -> value
With a single iterable argument, return its largest item. With two or more arguments, return the largest argument.
So, it simply returns the object that is the largest.
How does key
work?
By default in Python 2 key
compares items based on a set of rules based on the type of the objects (for example a string is always greater than an integer).
To modify the object before comparison, or to compare based on a particular attribute/index, you've to use the key
argument.
Example 1:
A simple example, suppose you have a list of numbers in string form, but you want to compare those items by their integer value.
>>> lis = ['1', '100', '111', '2']
Here max
compares the items using their original values (strings are compared lexicographically so you'd get '2'
as output) :
>>> max(lis)
'2'
To compare the items by their integer value use key
with a simple lambda
:
>>> max(lis, key=lambda x:int(x)) # compare `int` version of each item
'111'
Example 2: Applying max
to a list of tuples.
>>> lis = [(1,'a'), (3,'c'), (4,'e'), (-1,'z')]
By default max
will compare the items by the first index. If the first index is the same then it'll compare the second index. As in my example, all items have a unique first index, so you'd get this as the answer:
>>> max(lis)
(4, 'e')
But, what if you wanted to compare each item by the value at index 1? Simple: use lambda
:
>>> max(lis, key = lambda x: x[1])
(-1, 'z')
Comparing items in an iterable that contains objects of different type:
List with mixed items:
lis = ['1','100','111','2', 2, 2.57]
In Python 2 it is possible to compare items of two different types:
>>> max(lis) # works in Python 2
'2'
>>> max(lis, key=lambda x: int(x)) # compare integer version of each item
'111'
But in Python 3 you can't do that any more:
>>> lis = ['1', '100', '111', '2', 2, 2.57]
>>> max(lis)
Traceback (most recent call last):
File "<ipython-input-2-0ce0a02693e4>", line 1, in <module>
max(lis)
TypeError: unorderable types: int() > str()
But this works, as we are comparing integer version of each object:
>>> max(lis, key=lambda x: int(x)) # or simply `max(lis, key=int)`
'111'
It should be noted that starting from C++17 filesystem interface is part of the standard library. This means that one can have following to create directories:
#include <filesystem>
std::filesystem::create_directories("/a/b/c/d")
More info here: https://en.cppreference.com/w/cpp/filesystem/create_directory
Additionally, with gcc, one needs to "-std=c++17" to CFLAGS. And "-lstdc++fs" to LDLIBS. The latter potentially is not going to be required in the future.
To copy an already existing index.html
file into the dist
directory you can simply use the HtmlWebpackPlugin by specifying the source index.html
as a template.
const HtmlWebpackPlugin = require('html-webpack-plugin');
module.exports = {
// ...
plugins: [
new HtmlWebpackPlugin({
template: './path/to/index.html',
})
],
// ...
};
The created dist/index.html
file will be basically the same as your source file with the difference that bundled resources like .js files are injected with <script>
tags by webpack. Minification and further options can be configured and are documented on github.
There is a parse_dates
parameter for read_csv
which allows you to define the names of the columns you want treated as dates or datetimes:
date_cols = ['col1', 'col2']
pd.read_csv(file, sep='\t', header=None, names=headers, parse_dates=date_cols)
You don't need to use **arr, you can either use:
void do_something(int el, std::vector<int> *arr){
arr->push_back(el);
}
or:
void do_something(int el, std::vector<int> &arr){
arr.push_back(el);
}
**arr makes no sense but if you insist using it, do it this way:
void do_something(int el, std::vector<int> **arr){
(*arr)->push_back(el);
}
but again there is no reason to do so...
Look at https://github.com/vvbogdan/BVCropPhoto
- (UIImage *)croppedImage { CGFloat scale = self.sourceImage.size.width / self.scrollView.contentSize.width; UIImage *finalImage = nil; CGRect targetFrame = CGRectMake((self.scrollView.contentInset.left + self.scrollView.contentOffset.x) * scale, (self.scrollView.contentInset.top + self.scrollView.contentOffset.y) * scale, self.cropSize.width * scale, self.cropSize.height * scale); CGImageRef contextImage = CGImageCreateWithImageInRect([[self imageWithRotation:self.sourceImage] CGImage], targetFrame); if (contextImage != NULL) { finalImage = [UIImage imageWithCGImage:contextImage scale:self.sourceImage.scale orientation:UIImageOrientationUp]; CGImageRelease(contextImage); } return finalImage; } - (UIImage *)imageWithRotation:(UIImage *)image { if (image.imageOrientation == UIImageOrientationUp) return image; CGAffineTransform transform = CGAffineTransformIdentity; switch (image.imageOrientation) { case UIImageOrientationDown: case UIImageOrientationDownMirrored: transform = CGAffineTransformTranslate(transform, image.size.width, image.size.height); transform = CGAffineTransformRotate(transform, M_PI); break; case UIImageOrientationLeft: case UIImageOrientationLeftMirrored: transform = CGAffineTransformTranslate(transform, image.size.width, 0); transform = CGAffineTransformRotate(transform, M_PI_2); break; case UIImageOrientationRight: case UIImageOrientationRightMirrored: transform = CGAffineTransformTranslate(transform, 0, image.size.height); transform = CGAffineTransformRotate(transform, -M_PI_2); break; case UIImageOrientationUp: case UIImageOrientationUpMirrored: break; } switch (image.imageOrientation) { case UIImageOrientationUpMirrored: case UIImageOrientationDownMirrored: transform = CGAffineTransformTranslate(transform, image.size.width, 0); transform = CGAffineTransformScale(transform, -1, 1); break; case UIImageOrientationLeftMirrored: case UIImageOrientationRightMirrored: transform = CGAffineTransformTranslate(transform, image.size.height, 0); transform = CGAffineTransformScale(transform, -1, 1); break; case UIImageOrientationUp: case UIImageOrientationDown: case UIImageOrientationLeft: case UIImageOrientationRight: break; } // Now we draw the underlying CGImage into a new context, applying the transform // calculated above. CGContextRef ctx = CGBitmapContextCreate(NULL, image.size.width, image.size.height, CGImageGetBitsPerComponent(image.CGImage), 0, CGImageGetColorSpace(image.CGImage), CGImageGetBitmapInfo(image.CGImage)); CGContextConcatCTM(ctx, transform); switch (image.imageOrientation) { case UIImageOrientationLeft: case UIImageOrientationLeftMirrored: case UIImageOrientationRight: case UIImageOrientationRightMirrored: // Grr... CGContextDrawImage(ctx, CGRectMake(0, 0, image.size.height, image.size.width), image.CGImage); break; default: CGContextDrawImage(ctx, CGRectMake(0, 0, image.size.width, image.size.height), image.CGImage); break; } // And now we just create a new UIImage from the drawing context CGImageRef cgimg = CGBitmapContextCreateImage(ctx); UIImage *img = [UIImage imageWithCGImage:cgimg]; CGContextRelease(ctx); CGImageRelease(cgimg); return img; }
Old thread but I had the same problem now. If anyone encounters this he'll probably find this answer:
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(30, 30);
yourImageView.setLayoutParams(layoutParams);
This will work only if you add the ImageView as a subView to a LinearLayout. If you add it to a RelativeLayout you will need to call:
RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(30, 30);
yourImageView.setLayoutParams(layoutParams);
Have you tried, after calling DataBind on your DropDownList, to do something like ddl.SelectedIndex = 0 ?
The proper way to sort strings is:
import locale
locale.setlocale(locale.LC_ALL, 'en_US.UTF-8') # vary depending on your lang/locale
assert sorted((u'Ab', u'ad', u'aa'), cmp=locale.strcoll) == [u'aa', u'Ab', u'ad']
# Without using locale.strcoll you get:
assert sorted((u'Ab', u'ad', u'aa')) == [u'Ab', u'aa', u'ad']
The previous example of mylist.sort(key=lambda x: x.lower())
will work fine for ASCII-only contexts.
I am using the following
....
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.0.2</version>
<configuration>
<finalName>${project.groupId}/${project.artifactId}-${baseVersion}.${monthlyVersion}.${instanceVersion}</finalName>
</configuration>
</plugin>
....
This way you can define each value individually or pragmatically from Jenkins of some other system.
mvn package -DbaseVersion=1 -monthlyVersion=2 -instanceVersion=3
This will place a folder target\{group.id}\projectName-1.2.3.jar
A better way to save time might be
....
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.0.2</version>
<configuration>
<finalName>${project.groupId}/${project.artifactId}-${baseVersion}</finalName>
</configuration>
</plugin>
....
Like the same except I use on variable.
mvn package -DbaseVersion=0.3.4
This will place a folder target\{group.id}\projectName-1.2.3.jar
you can also use outputDirectory
inside of configuration
to specify a location you may want the package to be located.
Just to add to the existing great answers here - building on the code in the accepted one, which uses a delegate void MyEventHandler(string foo)
...
Because the compiler knows the delegate type of the SomethingHappened event, this:
myObj.SomethingHappened += HandleSomethingHappened;
Is totally equivalent to:
myObj.SomethingHappened += new MyEventHandler(HandleSomethingHappened);
And handlers can also be unregistered with -=
like this:
// -= removes the handler from the event's list of "listeners":
myObj.SomethingHappened -= HandleSomethingHappened;
For completeness' sake, raising the event can be done like this, only in the class that owns the event:
//Firing the event is done by simply providing the arguments to the event:
var handler = SomethingHappened; // thread-local copy of the event
if (handler != null) // the event is null if there are no listeners!
{
handler("Hi there!");
}
The thread-local copy of the handler is needed to make sure the invocation is thread-safe - otherwise a thread could go and unregister the last handler for the event immediately after we checked if it was null
, and we would have a "fun" NullReferenceException
there.
C# 6 introduced a nice short hand for this pattern. It uses the null propagation operator.
SomethingHappened?.Invoke("Hi there!");
This has happened to me after I "updated" into 5.0 SDK and wanted to create a new application with support library
In both Projects (project.properties
file) in the one you want to use support library and the support library itself it has to be set the same target
e.g. for my case it worked
android-support-v7-appcompat
Change
project.properties
into target=android-21
android-support-v7-appcompat
In my project (where I desire support
library) project.properties
into target=android-21
and android.library.reference.1=../android-support-v7-appcompat
(or add support library in project properties)I think there's no need to change any mapping. Try to use query_string, it's perfect. All scenarios will work with default standard analyzer:
We have data:
{"_id" : "1","name" : "John Doeman","function" : "Janitor"}
{"_id" : "2","name" : "Jane Doewoman","function" : "Teacher"}
Scenario 1:
{"query": {
"query_string" : {"default_field" : "name", "query" : "*Doe*"}
} }
Response:
{"_id" : "1","name" : "John Doeman","function" : "Janitor"}
{"_id" : "2","name" : "Jane Doewoman","function" : "Teacher"}
Scenario 2:
{"query": {
"query_string" : {"default_field" : "name", "query" : "*Jan*"}
} }
Response:
{"_id" : "1","name" : "John Doeman","function" : "Janitor"}
Scenario 3:
{"query": {
"query_string" : {"default_field" : "name", "query" : "*oh* *oe*"}
} }
Response:
{"_id" : "1","name" : "John Doeman","function" : "Janitor"}
{"_id" : "2","name" : "Jane Doewoman","function" : "Teacher"}
EDIT - Same implementation with spring data elastic search https://stackoverflow.com/a/43579948/2357869
One more explanation how query_string is better than others https://stackoverflow.com/a/43321606/2357869
Further to what Steve Baker has said, you can find a description of the SIOCGIFCONF ioctl in the netdevice(7) man page.
Once you have the list of all the IP addresses on the host, you will have to use application specific logic to filter out the addresses you do not want and hope you have one IP address left.
Here's my solution:
It's a file path problem so below are my folders & sites paths. Also, I had to use "vagrant destroy" as provisioning didn't work.
You never specify the type; Python has the concept of duck typing; basically the code that processes the parameters will make certain assumptions about them - perhaps by calling certain methods that a parameter is expected to implement. If the parameter is of the wrong type, then an exception will be thrown.
In general it is up to your code to ensure that you are passing around objects of the proper type - there is no compiler to enforce this ahead of time.
I fixed this problem by editing config.inc.php
file which is in phpmyadmin
folder:
specifically changed $cfg['Servers'][$i]['host'] = 'localhost'
to $cfg['Servers'][$i]['host'] = '127.0.0.1'
In codeigniter we are able to store session values in a database.
In the config.php file make the sess_use_database variable true
$config['sess_use_database'] = TRUE;
$config['sess_table_name'] = 'ci_sessions';
and create a ci_session table in the database
CREATE TABLE IF NOT EXISTS `ci_sessions` (
session_id varchar(40) DEFAULT '0' NOT NULL,
ip_address varchar(45) DEFAULT '0' NOT NULL,
user_agent varchar(120) NOT NULL,
last_activity int(10) unsigned DEFAULT 0 NOT NULL,
user_data text NOT NULL,
PRIMARY KEY (session_id),
KEY `last_activity_idx` (`last_activity`)
);
For more details and reference, click here
Rails got ActiveSupport::CoreExtensions::String::Inflections
module that provides such methods. They're all worth looking at. For your example:
'Book Author Title'.parameterize.underscore.to_sym # :book_author_title
Even though its not directly related. But I found that the CALC code won't work if you do not put spaces properly.
So this did not work for me calc(#{$a}+7px)
But this worked calc(#{$a} + 7px)
Took me sometime to figure this out.
I just wrote this for you, I hope you like it :) No guarantees that it's cross-browser, but I think it is :)
(function(){
var min = 100, max = 300, pad_right = 5, input = document.getElementById('adjinput');
input.style.width = min+'px';
input.onkeypress = input.onkeydown = input.onkeyup = function(){
var input = this;
setTimeout(function(){
var tmp = document.createElement('div');
tmp.style.padding = '0';
if(getComputedStyle)
tmp.style.cssText = getComputedStyle(input, null).cssText;
if(input.currentStyle)
tmp.style.cssText = input.currentStyle.cssText;
tmp.style.width = '';
tmp.style.position = 'absolute';
tmp.innerHTML = input.value.replace(/&/g, "&")
.replace(/</g, "<")
.replace(/>/g, ">")
.replace(/"/g, """)
.replace(/'/g, "'")
.replace(/ /g, ' ');
input.parentNode.appendChild(tmp);
var width = tmp.clientWidth+pad_right+1;
tmp.parentNode.removeChild(tmp);
if(min <= width && width <= max)
input.style.width = width+'px';
}, 1);
}
})();
I know this post is old but...
I was able to do this, my problem was that I forgot to make my property static.
public static class MyStaticClass
{
private static NonStaticObject _myObject = new NonStaticObject();
//property
public static NonStaticObject MyObject
{
get { return _myObject; }
set { _myObject = value; }
}
}
Most people are aware of the URL properties in document.location. That's great if you're only interested in the current page. But the question was about being able to parse anchors on a page not the page itself.
What most people seem to miss is that those same URL properties are also available to anchor elements:
// To process anchors on click
jQuery('a').click(function () {
if (this.hash) {
// Clicked anchor has a hash
} else {
// Clicked anchor does not have a hash
}
});
// To process anchors without waiting for an event
jQuery('a').each(function () {
if (this.hash) {
// Current anchor has a hash
} else {
// Current anchor does not have a hash
}
});
It can be done in two steps for Ubuntu 14.04 with Xampp 1.8.3-5
Step 1:- Change DocumentRoot
and Directory
path in /opt/lampp/etc/httpd.conf
from
DocumentRoot "/opt/lampp/htdocs"
and Directory "/opt/lampp/htdocs"
to
DocumentRoot "/home/user/Desktop/js"
and Directory "/home/user/Desktop/js"
Step 2:- Change the rights of folder (in path and its parent folders to 777) eg via
sudo chmod -R 777 /home/user/Desktop/js
Answering this old question (for others which may help)
Configuring your httpd conf correctly will make the problem solved. Install any httpd server, if you don't have one.
Listing my config here.
[smilyface@box002 ~]$ cat /etc/httpd/conf/httpd.conf | grep shirts | grep -v "#"
ProxyPass /shirts-service http://local.box002.com:16743/shirts-service
ProxyPassReverse /shirts-service http://local.box002.com:16743/shirts-service
ProxyPass /shirts http://local.box002.com:16443/shirts
ProxyPassReverse /shirts http://local.box002.com:16443/shirts
...
...
...
edit the file as above and then restart httpd as below
[smilyface@box002 ~]$ sudo service httpd restart
And then request with with https
will work without exception.
Also request with http
will forward to https
! No worries.
You might be interested in Apache Bench tool which is basically used to do simple load testing.
example :
ab -n 500 -c 20 http://www.example.com/
n = total number of request, c = number of concurrent request
If you want ex. change all country codes in .json file from uppercase to lowercase:
ctrl+h
alt+r
alt+c
Find: ([A-Z]{2,})
Replace: $1
alt+enter
F1
type: lower -> select toLoweCase
ctrl+alt+enter
ex file:
[
{"id": "PL", "name": "Poland"},
{"id": "NZ", "name": "New Zealand"},
...
]
How about
sudo yum install php-mysql
or
sudo apt-get install php5-mysql
here is another version:
function convertHTMLEntity(text){_x000D_
const span = document.createElement('span');_x000D_
_x000D_
return text_x000D_
.replace(/&[#A-Za-z0-9]+;/gi, (entity,position,text)=> {_x000D_
span.innerHTML = entity;_x000D_
return span.innerText;_x000D_
});_x000D_
}_x000D_
_x000D_
console.log(convertHTMLEntity('Large < £ 500'));
_x000D_
Clearly many people have answered upon your query of how to make mongoDb work, I'd answer the second part: Regarding an appropriate GUI for mongoDB
My suggestion is, go for MongoChef (now Studio 3T)
You can easily install and use it.
You might want want to refer to (from 03:10- to 08:50): https://www.youtube.com/watch?v=0ws3oIyqieY&index=2&list=PLS1QulWo1RIZtR6bncmSaH8fB81oRl6MP
For a step by step guide to the GUI tool.
-We can create ParentComponent and with handleInputChange method to update the ParentComponent state. Import the ChildComponent and we pass two props from parent to child component ie.handleInputChange function and count.
import React, { Component } from 'react';
import ChildComponent from './ChildComponent';
class ParentComponent extends Component {
constructor(props) {
super(props);
this.handleInputChange = this.handleInputChange.bind(this);
this.state = {
count: '',
};
}
handleInputChange(e) {
const { value, name } = e.target;
this.setState({ [name]: value });
}
render() {
const { count } = this.state;
return (
<ChildComponent count={count} handleInputChange={this.handleInputChange} />
);
}
}
Now we create the ChildComponent file and save as ChildComponent.jsx. This component is stateless because the child component doesn't have a state. We use the prop-types library for props type checking.
import React from 'react';
import { func, number } from 'prop-types';
const ChildComponent = ({ handleInputChange, count }) => (
<input onChange={handleInputChange} value={count} name="count" />
);
ChildComponent.propTypes = {
count: number,
handleInputChange: func.isRequired,
};
ChildComponent.defaultProps = {
count: 0,
};
export default ChildComponent;
This is how change the cursor from an arrow to a hand when you hover over a given object
(myObject).
myObject.style.cursor = 'pointer';
function number_format(string,decimals=2,decimal=',',thousands='.',pre='R$ ',pos=' Reais'){_x000D_
var numbers = string.toString().match(/\d+/g).join([]);_x000D_
numbers = numbers.padStart(decimals+1, "0");_x000D_
var splitNumbers = numbers.split("").reverse();_x000D_
var mask = '';_x000D_
splitNumbers.forEach(function(d,i){_x000D_
if (i == decimals) { mask = decimal + mask; }_x000D_
if (i>(decimals+1) && ((i-2)%(decimals+1))==0) { mask = thousands + mask; }_x000D_
mask = d + mask;_x000D_
});_x000D_
return pre + mask + pos;_x000D_
}_x000D_
var element = document.getElementById("format");_x000D_
var money= number_format("10987654321",2,',','.');_x000D_
element.innerHTML = money;
_x000D_
#format{_x000D_
display:inline-block;_x000D_
padding:10px;_x000D_
border:1px solid #ddd;_x000D_
background:#f5f5f5;_x000D_
}
_x000D_
<div id='format'>Test 123456789</div>
_x000D_
The declaration is when a primitive or object reference variable or method is created without assigning value or object. int a; final int a;
The definition means assigning the value or object respectively int a =10;
Initialization means allocating memory for a respective variable or object.
axios.get
accepts a request config as the second parameter (not query string params).
You can use the params
config option to set query string params as follows:
axios.get('/api', {
params: {
foo: 'bar'
}
});
In views with {{}}
and/or ng-model, Angular is setting up $watch()
es for you behind the scenes.
By default $watch
compares by reference. If you set the third parameter to $watch
to true
, Angular will instead "shallow" watch the object for changes. For arrays this means comparing the array items, for object maps this means watching the properties. So this should do what you want:
$scope.$watch('myModel', function() { ... }, true);
Update: Angular v1.2 added a new method for this, `$watchCollection():
$scope.$watchCollection('myModel', function() { ... });
Note that the word "shallow" is used to describe the comparison rather than "deep" because references are not followed -- e.g., if the watched object contains a property value that is a reference to another object, that reference is not followed to compare the other object.
For Guzzle <= 4:
It's a raw post request so putting the JSON in the body solved the problem
$request = $this->client->post(
$url,
[
'content-type' => 'application/json'
],
);
$request->setBody($data); #set body!
$response = $request->send();
The current top answer by Peter Lyons is not relevant with recent NPM versions. For example, using the same command that was criticized in this answer is now fine.
$ npm install https://github.com/visionmedia/express
If you have continued problems it might be a problem with whatever package you were using.
Try trimming the string to make sure there is no extra white space:
Cursor c = db.rawQuery("SELECT * FROM tbl1 WHERE TRIM(name) = '"+name.trim()+"'", null);
Also use c.moveToFirst()
like @thinksteep mentioned.
This is a complete code for select statements.
SQLiteDatabase db = this.getReadableDatabase();
Cursor c = db.rawQuery("SELECT column1,column2,column3 FROM table ", null);
if (c.moveToFirst()){
do {
// Passing values
String column1 = c.getString(0);
String column2 = c.getString(1);
String column3 = c.getString(2);
// Do something Here with values
} while(c.moveToNext());
}
c.close();
db.close();
I have the same variant as the last ones which calculates segments of table data, table indexes and blob-fields:
CREATE OR REPLACE FUNCTION
SYS.RAZMER_TABLICY_RAW(pNazvanie in varchar, pOwner in varchar2)
return number
is
val number(16);
sz number(16);
begin
sz := 0;
--Calculate size of table data segments
select
sum(t.bytes) into val
from
sys.dba_segments t
where
t.segment_name = upper(pNazvanie)
and
t.owner = upper(pOwner);
sz := sz + nvl(val,0);
--Calculate size of table indexes segments
select
sum(s.bytes) into val
from
all_indexes t
inner join
dba_segments s
on
t.index_name = s.segment_name
where
t.table_name = upper(pNazvanie)
and
t.owner = upper(pOwner);
sz := sz + nvl(val,0);
--Calculate size of table blob segments
select
sum(s.bytes) into val
from
all_lobs t
inner join
dba_segments s on t.segment_name = s.segment_name
where
t.table_name = upper(pNazvanie)
and
t.owner = upper(pOwner);
sz := sz + nvl(val,0);
return sz;
end razmer_tablicy_raw;
My problem was that I had a list of numbers, and I only want to replace a part of that number, soy I do this:
original_list = ['08113', '09106', '19066', '17056', '17063', '17053']
# With this part I achieve my goal
cves_mod = []
for i in range(0,len(res_list)):
cves_mod.append(res_list[i].replace(res_list[i][2:], '999'))
cves_mod
# Result
cves_mod
['08999', '09999', '19999', '17999', '17999', '17999']
There is a nice comparison of the 3 mature Java libraries for SFTP: Commons VFS, SSHJ and JSch
To sum up SSHJ has the clearest API and it's the best out of them if you don't need other storages support provided by Commons VFS.
Here is edited SSHJ example from github:
final SSHClient ssh = new SSHClient();
ssh.loadKnownHosts(); // or, to skip host verification: ssh.addHostKeyVerifier(new PromiscuousVerifier())
ssh.connect("localhost");
try {
ssh.authPassword("user", "password"); // or ssh.authPublickey(System.getProperty("user.name"))
final SFTPClient sftp = ssh.newSFTPClient();
try {
sftp.get("test_file", "/tmp/test.tmp");
} finally {
sftp.close();
}
} finally {
ssh.disconnect();
}