Use requests
library to GET, POST, PUT or DELETE by hitting a REST API endpoint. Pass the rest api endpoint url in url
, payload(dict) in data
and header/metadata in headers
import requests, json
url = "bugs.python.org"
payload = {"number": 12524,
"type": "issue",
"action": "show"}
header = {"Content-type": "application/x-www-form-urlencoded",
"Accept": "text/plain"}
response_decoded_json = requests.post(url, data=payload, headers=header)
response_json = response_decoded_json.json()
print response_json
I think a more reliable way of closing a connection is to tell the sever explicitly to close it in a way compliant with HTTP specification:
HTTP/1.1 defines the "close" connection option for the sender to signal that the connection will be closed after completion of the response. For example,
Connection: close
in either the request or the response header fields indicates that the connection SHOULD NOT be considered `persistent' (section 8.1) after the current request/response is complete.
The Connection: close
header is added to the actual request:
r = requests.post(url=url, data=body, headers={'Connection':'close'})
If using httplib.HTTPSConnection:
Please take a look at:
This class now performs all the necessary certificate and hostname checks by default. To revert to the previous, unverified, behavior ssl._create_unverified_context() can be passed to the context parameter. You can use:
if hasattr(ssl, '_create_unverified_context'):
ssl._create_default_https_context = ssl._create_unverified_context
There's a niche case where git mv
remains very useful: when you want to change the casing of a file name on a case-insensitive file system. Both APFS (mac) and NTFS (windows) are, by default, case-insensitive (but case-preserving).
greg.kindel mentions this in a comment on CB Bailey's answer.
Suppose you are working on a mac and have a file Mytest.txt
managed by git. You want to change the file name to MyTest.txt
.
You could try:
$ mv Mytest.txt MyTest.txt
overwrite MyTest.txt? (y/n [n]) y
$ git status
On branch master
Your branch is up to date with 'origin/master'.
nothing to commit, working tree clean
Oh dear. Git doesn't acknowledge there's been any change to the file.
You could work around this with by renaming the file completely then renaming it back:
$ mv Mytest.txt temp.txt
$ git rm Mytest.txt
rm 'Mytest.txt'
$ mv temp.txt MyTest.txt
$ git add MyTest.txt
$ git status
On branch master
Your branch is up to date with 'origin/master'.
Changes to be committed:
(use "git reset HEAD <file>..." to unstage)
renamed: Mytest.txt -> MyTest.txt
Hurray!
Or you could save yourself all that bother by using git mv
:
$ git mv Mytest.txt MyTest.txt
$ git status
On branch master
Your branch is up to date with 'origin/master'.
Changes to be committed:
(use "git reset HEAD <file>..." to unstage)
renamed: Mytest.txt -> MyTest.txt
I suppose you don't want your textarea-content to be parsed as HTML. In this case, you can just set it as plaintext so the browser doesn't treat it as HTML and doesn't remove newlines No CSS or preprocessing required.
<script>_x000D_
function copycontent(){_x000D_
var content = document.getElementById('ta').value;_x000D_
document.getElementById('target').innerText = content;_x000D_
}_x000D_
</script>_x000D_
<textarea id='ta' rows='3'>_x000D_
line 1_x000D_
line 2_x000D_
line 3_x000D_
</textarea>_x000D_
<button id='btn' onclick='copycontent();'>_x000D_
Copy_x000D_
</button>_x000D_
<p id='target'></p>
_x000D_
Perhaps $('#fruit').val();
is not returning an array and you need something like:
$("#fruit").val() || []
Piping is your friend...
Use grep -A1
to show the next line after a match, then pipe the result to tail
and only grab 1 line,
cat logs/info.log | grep "term" -A1 | tail -n 1
I had the same problem with bringing a JFrame
to the front under Ubuntu (Java 1.6.0_10). And the only way I could resolve it is by providing a WindowListener
. Specifically, I had to set my JFrame
to always stay on top whenever toFront()
is invoked, and provide windowDeactivated
event handler to setAlwaysOnTop(false)
.
So, here is the code that could be placed into a base JFrame
, which is used to derive all application frames.
@Override
public void setVisible(final boolean visible) {
// make sure that frame is marked as not disposed if it is asked to be visible
if (visible) {
setDisposed(false);
}
// let's handle visibility...
if (!visible || !isVisible()) { // have to check this condition simply because super.setVisible(true) invokes toFront if frame was already visible
super.setVisible(visible);
}
// ...and bring frame to the front.. in a strange and weird way
if (visible) {
toFront();
}
}
@Override
public void toFront() {
super.setVisible(true);
int state = super.getExtendedState();
state &= ~JFrame.ICONIFIED;
super.setExtendedState(state);
super.setAlwaysOnTop(true);
super.toFront();
super.requestFocus();
super.setAlwaysOnTop(false);
}
Whenever your frame should be displayed or brought to front call frame.setVisible(true)
.
Since I moved to Ubuntu 9.04 there seems to be no need in having a WindowListener
for invoking super.setAlwaysOnTop(false)
-- as can be observed; this code was moved to the methods toFront()
and setVisible()
.
Please note that method setVisible()
should always be invoked on EDT.
why not using?
location.href='http://www.example.com';
<!DOCTYPE html>_x000D_
<html>_x000D_
_x000D_
<head>_x000D_
<script>_x000D_
function goToURL() {_x000D_
location.href = 'http://google.it';_x000D_
_x000D_
}_x000D_
</script>_x000D_
</head>_x000D_
_x000D_
<body>_x000D_
<a href="javascript:void(0)" onclick="goToURL(); return false;">Go To URL</a>_x000D_
</body>_x000D_
_x000D_
</html>
_x000D_
This JS will change the content after the set date here's the same thing but on w3schools
date1 = new Date()_x000D_
date2 = new Date(2019,5,2) //the date you are comparing_x000D_
_x000D_
date1.setHours(0,0,0,0)_x000D_
_x000D_
var stockcnt = document.getElementById('demo').innerHTML;_x000D_
if (date1 > date2){_x000D_
document.getElementById('demo').innerHTML="yes"; //change if date is > set date (date2)_x000D_
}else{_x000D_
document.getElementById('demo').innerHTML="hello"; //change if date is < set date (date2)_x000D_
}
_x000D_
<p id="demo">hello</p> <!--What will be changed-->_x000D_
<!--if you check back in tomorrow, it will say yes instead of hello... or you could change the date... or change > to <-->
_x000D_
You can use [ScriptIgnore]
:
public class User
{
public int Id { get; set; }
public string Name { get; set; }
[ScriptIgnore]
public bool IsComplete
{
get { return Id > 0 && !string.IsNullOrEmpty(Name); }
}
}
Reference here
In this case the Id and then name will only be serialized
git commit -am "message"
is an easy way to tell git to delete files you have deleted, but I generally don't recommend such catch-all workflows. Git commits should in best practice be fairly atomic and only affect a few files.
git add .
git commit -m "message"
is an easy way to add all files new or modified. Also, the catch-all qualification applies. The above commands will not delete files deleted without the git rm
command.
git add app
git commit -m "message"
is an easy way to add all files to the index from a single dir, in this case the app
dir.
michael's suggestions works like a charm for me :) If you replace $http.post with $http.get, remember that the .get method accepts 2 parameters instead of 3... this is where is wasted my time... ;)
controller:
$http.get('/getdoc/' + $stateParams.id,
{responseType:'arraybuffer'})
.success(function (response) {
var file = new Blob([(response)], {type: 'application/pdf'});
var fileURL = URL.createObjectURL(file);
$scope.content = $sce.trustAsResourceUrl(fileURL);
});
view:
<object ng-show="content" data="{{content}}" type="application/pdf" style="width: 100%; height: 400px;"></object>
A couple of changes mean that only an R
or r
will roll. Any other character will quit
import random
while True:
print('Your score so far is {}.'.format(myScore))
print("Would you like to roll or quit?")
ans = input("Roll...")
if ans.lower() == 'r':
R = np.random.randint(1, 8)
print("You rolled a {}.".format(R))
myScore = R + myScore
else:
print("Now I'll see if I can break your score...")
break
import matplotlib.pyplot as plt
import numpy as np
import scipy.stats as stats
import math
mu = 0
variance = 1
sigma = math.sqrt(variance)
x = np.linspace(mu - 3*sigma, mu + 3*sigma, 100)
plt.plot(x, stats.norm.pdf(x, mu, sigma))
plt.show()
To complete @GauravKachhadiya's answer :
IndexIgnore *.jpg
means "hide only .jpg extension files from indexing.
IndexIgnore directive uses wildcard expression to match against directories and files.
a star character , it matches any charactes in a string ,eg : foo or foo.extension, in the following example, we are going to turn off the directory listing, no files or dirs will appear in the index :
IndexIgnore *
Or if you want to hide spacific files , in the directory listing, then we can use
IndexIgnore *.php
*.php => matches a string that starts with any char and ends with .php
The example above hides all files that end with .php
One of your conditions is failing. Check the value of mime-type for your files.
Try using application/pdf, not text/pdf. Refer to Proper MIME media type for PDF files
Create a new method for Array class in core level file and use it all over your project.
// say in app.js
Array.prototype.occurrence = function(val) {
return this.filter(e => e === val).length;
}
Use this anywhere in your project -
[1, 2, 4, 5, 2, 7, 2, 9].occurrence(2);
// above line returns 3
IntelliJ just inserts them automagically; no shortcut required. If the class name is ambiguous, it'll show me the list of possibilities to choose from. It reads my mind....
char(13)
is CR
. For DOS-/Windows-style CRLF
linebreaks, you want char(13)+char(10)
, like:
'This is line 1.' + CHAR(13)+CHAR(10) + 'This is line 2.'
back to 2017:
use URL.createObjectURL( file ) to create local link to file system that user select;
don't forgot to free memory by using URL.revokeObjectURL()
This is the solution for my old question:
I implemented my own ContextResolver
in order to enable the DeserializationConfig.Feature.ACCEPT_SINGLE_VALUE_AS_ARRAY
feature.
package org.lig.hadas.services.mapper;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.ext.ContextResolver;
import javax.ws.rs.ext.Provider;
import org.codehaus.jackson.map.DeserializationConfig;
import org.codehaus.jackson.map.ObjectMapper;
@Produces(MediaType.APPLICATION_JSON)
@Provider
public class ObjectMapperProvider implements ContextResolver<ObjectMapper>
{
ObjectMapper mapper;
public ObjectMapperProvider(){
mapper = new ObjectMapper();
mapper.configure(DeserializationConfig.Feature.ACCEPT_SINGLE_VALUE_AS_ARRAY, true);
}
@Override
public ObjectMapper getContext(Class<?> type) {
return mapper;
}
}
And in the web.xml
I registered my package into the servlet definition...
<servlet>
<servlet-name>...</servlet-name>
<servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>com.sun.jersey.config.property.packages</param-name>
<param-value>...;org.lig.hadas.services.mapper</param-value>
</init-param>
...
</servlet>
... all the rest is transparently done by jersey/jackson.
Try the following :
Make sure you add M2_HOME
variable to your environment variables. It looks like you might have set M2_HOME
temporarily in a cmd
window and not as a permanent environment variable. Also append M2_HOME
to the PATH
variable.
Go to the m2
folder in your user directory.
Example: On Windows, for user bot
, the .m2
directory will be under C:\Users\bot
. Look for the settings.xml
file in this directory and look for the repository url within this file. See if you are able to hit this url from your browser. If not, you probably need to point to a different maven repository or use a proxy.
If you are able to hit the repository url from the browser, then check if the repository contains the maven-resource-plugin
version 2.6. This can be found by navigating to org.apache.maven.plugins
folder in the browser. It's possible that your pom
has hard-coded the dependency of the plugin to 2.6 but it is not available in the repository. This can be fixed by changing the depndency version to the one available in the repository.
This needs to be done on the server-side, where the cookie was issued.
Further to @T.J. Crowder 's answer, I've added a recursive outer loop that allows one to iterate through all the scripts in an array and then execute a function once all the scripts are loaded:
loadList([array of scripts], 0, function(){// do your post-scriptload stuff})
function loadList(list, i, callback)
{
{
loadScript(list[i], function()
{
if(i < list.length-1)
{
loadList(list, i+1, callback);
}
else
{
callback();
}
})
}
}
Of course you can make a wrapper to get rid of the '0' if you like:
function prettyLoadList(list, callback)
{
loadList(list, 0, callback);
}
Nice work @T.J. Crowder - I was cringing at the 'just add a couple seconds delay before running the callback' I saw in other threads.
you could also try creating a button, this will work if you put it outside of the form;
<button onClick="moreFields(); return false;">Give me more fields!</button>
Here's a script that will allow you to cherry-pick multiple commits in a row simply by telling the script which source and target branches for the cherry picks and the number of commits:
https://gist.github.com/nickboldt/99ac1dc4eb4c9ff003a1effef2eb2d81
To cherry-pick from your branch to master (uses the current branch as source):
./gcpl.sh -m
To cherry-pick the latest 5 commits from your 6.19.x branch to master:
./gcpl.sh -c 5 -s 6.19.x -t master
There are two points to considerate.
1) This source code worked for me:
private static string Execute(string credentials, string scriptDir, string scriptFilename)
{
Process process = new Process();
process.StartInfo.UseShellExecute = false;
process.StartInfo.WorkingDirectory = scriptDir;
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.FileName = "sqlplus";
process.StartInfo.Arguments = string.Format("{0} @{1}", credentials, scriptFilename);
process.StartInfo.CreateNoWindow = true;
process.Start();
string output = process.StandardOutput.ReadToEnd();
process.WaitForExit();
return output;
}
I set the working directory to the script directory, so that sub scripts within the script also work.
Call it e.g. as Execute("usr/pwd@service", "c:\myscripts", "script.sql")
2) You have to finalize your SQL script with the statement EXIT;
I know this question is aged, still, I would like to contribute.
Applying Range.NumberFormat = "@"
just partially solve the problem:
Applying the apostroph behave better. It sets the format to text, it align data to left and if you check the format of the value in the cell using the type formula, it will return 2 meaning text
You could just use normal Python argument passing syntax to specify your crontab. For example, suppose we define an Event class as below:
from datetime import datetime, timedelta
import time
# Some utility classes / functions first
class AllMatch(set):
"""Universal set - match everything"""
def __contains__(self, item): return True
allMatch = AllMatch()
def conv_to_set(obj): # Allow single integer to be provided
if isinstance(obj, (int,long)):
return set([obj]) # Single item
if not isinstance(obj, set):
obj = set(obj)
return obj
# The actual Event class
class Event(object):
def __init__(self, action, min=allMatch, hour=allMatch,
day=allMatch, month=allMatch, dow=allMatch,
args=(), kwargs={}):
self.mins = conv_to_set(min)
self.hours= conv_to_set(hour)
self.days = conv_to_set(day)
self.months = conv_to_set(month)
self.dow = conv_to_set(dow)
self.action = action
self.args = args
self.kwargs = kwargs
def matchtime(self, t):
"""Return True if this event should trigger at the specified datetime"""
return ((t.minute in self.mins) and
(t.hour in self.hours) and
(t.day in self.days) and
(t.month in self.months) and
(t.weekday() in self.dow))
def check(self, t):
if self.matchtime(t):
self.action(*self.args, **self.kwargs)
(Note: Not thoroughly tested)
Then your CronTab can be specified in normal python syntax as:
c = CronTab(
Event(perform_backup, 0, 2, dow=6 ),
Event(purge_temps, 0, range(9,18,2), dow=range(0,5))
)
This way you get the full power of Python's argument mechanics (mixing positional and keyword args, and can use symbolic names for names of weeks and months)
The CronTab class would be defined as simply sleeping in minute increments, and calling check() on each event. (There are probably some subtleties with daylight savings time / timezones to be wary of though). Here's a quick implementation:
class CronTab(object):
def __init__(self, *events):
self.events = events
def run(self):
t=datetime(*datetime.now().timetuple()[:5])
while 1:
for e in self.events:
e.check(t)
t += timedelta(minutes=1)
while datetime.now() < t:
time.sleep((t - datetime.now()).seconds)
A few things to note: Python's weekdays / months are zero indexed (unlike cron), and that range excludes the last element, hence syntax like "1-5" becomes range(0,5) - ie [0,1,2,3,4]. If you prefer cron syntax, parsing it shouldn't be too difficult however.
select @currentTerm = CurrentTerm, @termID = TermID, @endDate = EndDate
from table1
where IsCurrent = 1
If the list you use for the spinner is an object then you can find its position like this
private int selectSpinnerValue( List<Object> ListSpinner,String myString)
{
int index = 0;
for(int i = 0; i < ListSpinner.size(); i++){
if(ListSpinner.get(i).getValueEquals().equals(myString)){
index=i;
break;
}
}
return index;
}
using:
int index=selectSpinnerValue(ListOfSpinner,StringEquals);
spinner.setSelection(index,true);
I had the same issue and tried everything. This 400
happened for an upstream proxy.
Debug logged showed absolutely nothing.
The problem was in duplicate proxy_set_header Host $http_host
directive, which I didn't notice initially.
Removing duplicate one solved the issue immediately.
I wish nginx
was saying something other than 400
in this scenario, as nginx -t
didn't complain at all.
P.S. this happened while migrating from older nginx 1.10
to the newer 1.19
. Before it was tolerated apparently.
you can add the following code : the ckeditor field data will be stored in $('#ELEMENT_ID').val() via each click. I've used the method and it works very well. ckeditor field data will be saved realtime and will be ready for sending.
$().click(function(){
$('#ELEMENT_ID').val(CKEDITOR.instances['ELEMENT_ID'].getData());
});
Try this
getExternalFilesDir(Environment.getDataDirectory().getAbsolutePath()).getAbsolutePath()
The documentation is not very clear about AngularJS routing. It talks about Hashbang and HTML5 mode. In fact, AngularJS routing operates in three modes:
For each mode there is a a respective LocationUrl class (LocationHashbangUrl, LocationUrl and LocationHashbangInHTML5Url).
In order to simulate URL rewriting you must actually set html5mode to true and decorate the $sniffer class as follows:
$provide.decorator('$sniffer', function($delegate) {
$delegate.history = false;
return $delegate;
});
I will now explain this in more detail:
Configuration:
$routeProvider
.when('/path', {
templateUrl: 'path.html',
});
$locationProvider
.html5Mode(false)
.hashPrefix('!');
This is the case when you need to use URLs with hashes in your HTML files such as in
<a href="index.html#!/path">link</a>
In the Browser you must use the following Link: http://www.example.com/base/index.html#!/base/path
As you can see in pure Hashbang mode all links in the HTML files must begin with the base such as "index.html#!".
Configuration:
$routeProvider
.when('/path', {
templateUrl: 'path.html',
});
$locationProvider
.html5Mode(true);
You should set the base in HTML-file
<html>
<head>
<base href="/">
</head>
</html>
In this mode you can use links without the # in HTML files
<a href="/path">link</a>
Link in Browser:
http://www.example.com/base/path
This mode is activated when we actually use HTML5 mode but in an incompatible browser. We can simulate this mode in a compatible browser by decorating the $sniffer service and setting history to false.
Configuration:
$provide.decorator('$sniffer', function($delegate) {
$delegate.history = false;
return $delegate;
});
$routeProvider
.when('/path', {
templateUrl: 'path.html',
});
$locationProvider
.html5Mode(true)
.hashPrefix('!');
Set the base in HTML-file:
<html>
<head>
<base href="/">
</head>
</html>
In this case the links can also be written without the hash in the HTML file
<a href="/path">link</a>
Link in Browser:
http://www.example.com/index.html#!/base/path
SKU stands for Stock-keeping Unit. It's more for inventory tracking purpose.
The purpose of having an SKU is so that you can tie the app sales to whatever internal SKU number that your accounting is using.
var totally = eval(arr.join('+'))
That way you can put all kinds of exotic things in the array.
var arr = ['(1/3)','Date.now()','foo','bar()',1,2,3,4]
I'm only half joking.
#!/usr/bin/env node
"use strict";
function perm(arr) {
if(arr.length<2) return [arr];
var res = [];
arr.forEach(function(x, i) {
perm(arr.slice(0,i).concat(arr.slice(i+1))).forEach(function(a) {
res.push([x].concat(a));
});
});
return res;
}
console.log(perm([1,2,3,4]));
Calendar now = Calendar.getInstance();
int hour = now.get(Calendar.HOUR_OF_DAY); // Get hour in 24 hour format
int minute = now.get(Calendar.MINUTE);
Date date = parseDate(hour + ":" + minute);
Date dateCompareOne = parseDate("08:00");
Date dateCompareTwo = parseDate("20:00");
if (dateCompareOne.before( date ) && dateCompareTwo.after(date)) {
//your logic
}
private Date parseDate(String date) {
final String inputFormat = "HH:mm";
SimpleDateFormat inputParser = new SimpleDateFormat(inputFormat, Locale.US);
try {
return inputParser.parse(date);
} catch (java.text.ParseException e) {
return new Date(0);
}
}
Further more, to be more precise, If you compare a time between an interval more than 00:00 to 24:00 of that day, you need to parse the day too.
In addition to previous post you can have
<h:form rendered="#{!bean.boolvalue}" />
<h:form rendered="#{bean.textvalue == 'value'}" />
Jsf 2.0
Follow bolnad answer up to Step 4.
Then make it simpler by replacing all the other steps with:
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
// Configure your cell
sizingNibNew.configureCell(data as! CustomCellData, delegate: self)
// We use the full width minus insets
let width = collectionView.frame.size.width - collectionView.sectionInset.left - collectionView.sectionInset.right
// Constrain our cell to this width
let height = sizingNibNew.systemLayoutSizeFitting(CGSize(width: width, height: .infinity), withHorizontalFittingPriority: UILayoutPriorityRequired, verticalFittingPriority: UILayoutPriorityFittingSizeLevel).height
return CGSize(width: width, height: height)
}
This can also occur when the path ends in a '' followed by the closing quotation mark. e.g. The following line is passed as one of the arguments and this is not right:
"c:\users\abc\"
instead pass that argument as shown below so that the last backslash is escaped instead of escaping the quotation mark.
"c:\users\abc\\"
Working demo : http://jsfiddle.net/YbLnj/
Documentation: http://jqueryui.com/demos/datepicker/
code
$("#dt").datepicker({
onSelect: function(dateText, inst) {
var date = $(this).val();
var time = $('#time').val();
alert('on select triggered');
$("#start").val(date + time.toString(' HH:mm').toString());
}
});
I had 2 years old classes and some new classes. I solved it in Android Studio as follows:
allprojects {
gradle.projectsEvaluated {
tasks.withType(JavaCompile) {
options.compilerArgs << "-Xlint:unchecked"
}
}
}
In my project build.gradle file (Borzh solution)
And then if some Metheds is left:
@SuppressWarnings("unchecked")
public void myMethod()
{
//...
}
I solve my problem by passing nil permission while login.
[FBSession openActiveSessionWithReadPermissions:nil
allowLoginUI:YES
completionHandler:
This deletes the history on the master
branch (you might want to make a backup before running the commands):
git branch tmp_branch $(echo "commit message" | git commit-tree HEAD^{tree})
git checkout tmp_branch
git branch -D master
git branch -m master
git push -f --set-upstream origin master
This is based on the answer from @dan_waterworth.
Using numpy (highly recommended), you would do:
from numpy import (array, dot, arccos, clip)
from numpy.linalg import norm
u = array([1.,2,3,4])
v = ...
c = dot(u,v)/norm(u)/norm(v) # -> cosine of the angle
angle = arccos(clip(c, -1, 1)) # if you really want the angle
Don't put the @ before the id
new { id = "1" }
The framework "translate" it in ?Lenght when there is a mismatch in the parameter/route
Try this.
Dim Workbk as workbook
Set Workbk = thisworkbook
Now everything you program will apply just for your containing macro workbook.
Isn't this the normal way to free the memory associated with an object?
Yes, it is.
I realized that it automatically invokes the destructor... is this normal?
Make sure that you did not double delete your object.
This worked for me:
Go to the project folder in CLI and type npm install.Go for a similar command if using yarn etc.
Then type npm start if you are using Npm. Go for a similar command if using yarn etc.
The file starts working
That's Ctrl + i.
Or for low-tech, cut and then paste. It'll reformat on paste.
I was needing to print DEBUG info in some logs and was unable to use pprint because it would break it. Instead I did this and got virtually the same thing.
DO = DemoObject()
itemDir = DO.__dict__
for i in itemDir:
print '{0} : {1}'.format(i, itemDir[i])
unnest2()
as exerciseOlder versions before pg v8.4 need a user-defined unnest()
. We can adapt this old function to return elements with an index:
CREATE FUNCTION unnest2(anyarray)
RETURNS setof record AS
$BODY$
SELECT $1[i], i
FROM generate_series(array_lower($1,1),
array_upper($1,1)) i;
$BODY$ LANGUAGE sql IMMUTABLE;
When using GenomeDiagram
with Jupyter (iPython), the easiest way to display images is by converting the GenomeDiagram to a PNG image. This can be wrapped using an IPython.display.Image object to make it display in the notebook.
from Bio.Graphics import GenomeDiagram
from Bio.SeqFeature import SeqFeature, FeatureLocation
from IPython.display import display, Image
gd_diagram = GenomeDiagram.Diagram("Test diagram")
gd_track_for_features = gd_diagram.new_track(1, name="Annotated Features")
gd_feature_set = gd_track_for_features.new_set()
gd_feature_set.add_feature(SeqFeature(FeatureLocation(25, 75), strand=+1))
gd_diagram.draw(format="linear", orientation="landscape", pagesize='A4',
fragments=1, start=0, end=100)
Image(gd_diagram.write_to_string("PNG"))
Know your host ip address on your lan Open cmd and type ipconfig and the if xampp the default listen port would be 80 Then for instance if 10.0.0.5 is your host ip address Type 10.0.0.5:80 from your mobile's web browser Make sure that both are connected to the same LAN However the default port that webaddress tries is 80.
Using the Regex methods in .NET you should be able to match any non-numeric digit using \D, like so:
phoneNumber = Regex.Replace(phoneNumber, "\\D", String.Empty);
First:
Transmitting end:
text.getBytes(encodingName)
)Base64
classReceiving end:
Base64
classnew String(bytes, encodingName)
)So something like:
// Sending side
byte[] data = text.getBytes("UTF-8");
String base64 = Base64.encodeToString(data, Base64.DEFAULT);
// Receiving side
byte[] data = Base64.decode(base64, Base64.DEFAULT);
String text = new String(data, "UTF-8");
Or with StandardCharsets
:
// Sending side
byte[] data = text.getBytes(StandardCharsets.UTF_8);
String base64 = Base64.encodeToString(data, Base64.DEFAULT);
// Receiving side
byte[] data = Base64.decode(base64, Base64.DEFAULT);
String text = new String(data, StandardCharsets.UTF_8);
Maybe you can try the followings $indent -kr -i8 *.c
Hope it's useful for you!
In case one does not have sudo privilege, but still needs to install the library.
Download source for the software/library using:
apt-get source libaio
or
wget https://src.fedoraproject.org/lookaside/pkgs/libaio/libaio-0.3.110.tar.gz/2a35602e43778383e2f4907a4ca39ab8/libaio-0.3.110.tar.gz
unzip the library
Install with the following command to user-specific library:
make prefix=`pwd`/usr install #(Copy from INSTALL file of libaio-0.3.110)
or
make prefix=/path/to/your/lib/libaio install
Include libaio library into LD_LIBRARY_PATH for your app:
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/path/to/your/lib/libaio/lib
Now, your app should be able to find libaio.so.1
You can get a shorter version by using sys.path[0]
.
os.chdir(sys.path[0])
From http://docs.python.org/library/sys.html#sys.path
As initialized upon program startup, the first item of this list,
path[0]
, is the directory containing the script that was used to invoke the Python interpreter
The best solution for me was to both
man python
mentions modifying the path in shell at $PYTHONPATH
or in python with sys.path
Other answers mention ideas for doing this using the shell. From python, adding the following lines to my script allows me to successfully run it directly from cron.
import sys
sys.path.insert(0,'/path/to/venv/lib/python3.3/site-packages');
Here's how it looks in an interactive session --
Python 3.3.2+ (default, Feb 28 2014, 00:52:16)
[GCC 4.8.1] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.path
['', '/usr/lib/python3.3', '/usr/lib/python3.3/plat-x86_64-linux-gnu', '/usr/lib/python3.3/lib-dynload']
>>> import requests
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named 'requests'
>>> sys.path.insert(0,'/path/to/venv/modules/');
>>> import requests
>>>
It gives out a string of max 200 characters OR 200 normal characters OR 200 characters followed by '...'
$ur_str= (strlen($ur_str) > 200) ? substr($ur_str,0,200).'...' :$ur_str;
These are the vendor-prefixed properties offered by the relevant rendering engines (-webkit
for Chrome, Safari; -moz
for Firefox, -o
for Opera, -ms
for Internet Explorer). Typically they're used to implement new, or proprietary CSS features, prior to final clarification/definition by the W3.
This allows properties to be set specific to each individual browser/rendering engine in order for inconsistencies between implementations to be safely accounted for. The prefixes will, over time, be removed (at least in theory) as the unprefixed, the final version, of the property is implemented in that browser.
To that end it's usually considered good practice to specify the vendor-prefixed version first and then the non-prefixed version, in order that the non-prefixed property will override the vendor-prefixed property-settings once it's implemented; for example:
.elementClass {
-moz-border-radius: 2em;
-ms-border-radius: 2em;
-o-border-radius: 2em;
-webkit-border-radius: 2em;
border-radius: 2em;
}
Specifically, to address the CSS in your question, the lines you quote:
-webkit-column-count: 3;
-webkit-column-gap: 10px;
-webkit-column-fill: auto;
-moz-column-count: 3;
-moz-column-gap: 10px;
-moz-column-fill: auto;
Specify the column-count
, column-gap
and column-fill
properties for Webkit browsers and Firefox.
References:
srand(time(NULL));
int nRandonNumber = rand()%((nMax+1)-nMin) + nMin;
printf("%d\n",nRandonNumber);
Here is an easy one:
$myVar > "c:\myfilepath\myfilename.myextension"
You can also try:
Get-content "c:\someOtherPath\someOtherFile.myextension" > "c:\myfilepath\myfilename.myextension"
StringBuilder result = new StringBuilder();
for (int i = 0; i < input.length(); i++) {
if (i > 0) {
result.append(" ");
}
result.append(input.charAt(i));
}
System.out.println(result.toString());
array_diff — Computes the difference of arrays
http://php.net/manual/en/function.array-diff.php
array array_diff ( array $array1 , array $array2 [, array $... ] )
Compares
array1
against one or more other arrays and returns the values inarray1
that are not present in any of the other arrays.
Unless you have a mail server set up on your local computer, setting SMTP = localhost won't have any effect.
In days gone by (long ago), it was sufficient to set the value of SMTP to the address of your ISP's SMTP server. This now rarely works because most ISPs insist on authentication with a username and password. However, the PHP mail() function doesn't support SMTP authentication. It's designed to work directly with the mail transport agent of the local server.
You either need to set up a local mail server or to use a PHP classs that supports SMTP authentication, such as Zend_Mail or PHPMailer. The simplest solution, however, is to upload your mail processing script to your remote server.
In theory, there's nothing preventing you from sending a request body in a GET
request. The HTTP protocol allows it, but have no defined semantics, so it's up to you to document what exactly is going to happen when a client sends a GET
payload. For instance, you have to define if parameters in a JSON body are equivalent to querystring parameters or something else entirely.
However, since there are no clearly defined semantics, you have no guarantee that implementations between your application and the client will respect it. A server or proxy might reject the whole request, or ignore the body, or anything else. The REST way to deal with broken implementations is to circumvent it in a way that's decoupled from your application, so I'd say you have two options that can be considered best practices.
The simple option is to use POST
instead of GET
as recommended by other answers. Since POST
is not standardized by HTTP, you'll have to document how exactly that's supposed to work.
Another option, which I prefer, is to implement your application assuming the GET
payload is never tampered with. Then, in case something has a broken implementation, you allow clients to override the HTTP method with the X-HTTP-Method-Override
, which is a popular convention for clients to emulate HTTP methods with POST
. So, if a client has a broken implementation, it can write the GET
request as a POST
, sending the X-HTTP-Method-Override: GET
method, and you can have a middleware that's decoupled from your application implementation and rewrites the method accordingly. This is the best option if you're a purist.
You can use HEAD request instead of GET. It will only download the header, but not the content. Then you can check the response status from the headers.
For python 2.7.x, you can use httplib
:
import httplib
c = httplib.HTTPConnection('www.example.com')
c.request("HEAD", '')
if c.getresponse().status == 200:
print('web site exists')
or urllib2
:
import urllib2
try:
urllib2.urlopen('http://www.example.com/some_page')
except urllib2.HTTPError, e:
print(e.code)
except urllib2.URLError, e:
print(e.args)
or for 2.7 and 3.x, you can install requests
import requests
request = requests.get('http://www.example.com')
if request.status_code == 200:
print('Web site exists')
else:
print('Web site does not exist')
With "thousands of rows" your best bet would obviously be to do server side paging. When I looked into the different AngularJs table/grid options a while back there were three clear favourites:
All three are good, but implemented differently. Which one you pick will probably be more based on personal preference than anything else.
ng-grid is probably the most known due to its association with angular-ui, but I personally prefer ng-table, I really like their implementation and how you use it, and they have great documentation and examples available and actively being improved.
commit () records these changes in the database. flush () is always called as part of the commit () (1) call. When you use a Session object to query a database, the query returns results from both the database and the reddened parts of the unrecorded transaction it is performing.
I think somewhere in your codebase are you @Autowiring
the concrete class ServiceImpl
where you should be autowiring it's interface (presumably MyService
).
#import "MyViewController.h"
@interface MyViewController ()
@property (strong, nonatomic) NSTimer *timer;
@end
@implementation MyViewController
double timerInterval = 1.0f;
- (NSTimer *) timer {
if (!_timer) {
_timer = [NSTimer timerWithTimeInterval:timerInterval target:self selector:@selector(onTick:) userInfo:nil repeats:YES];
}
return _timer;
}
- (void)viewDidLoad
{
[super viewDidLoad];
[[NSRunLoop mainRunLoop] addTimer:self.timer forMode:NSRunLoopCommonModes];
}
-(void)onTick:(NSTimer*)timer
{
NSLog(@"Tick...");
}
@end
500000 microseconds are 500000000 nanoseconds. You only wait for 500 ns = 0.5 µs.
I am using Visual Studio 2013 & SQL Server 2014. I got the below error Microsoft.SqlServer.management.sdk.sfc version 11.0.0.0
not found by visual studio.
I was actually expecting Microsoft.SqlServer.management.sdk.sfc version 12.0.0.0
error because I am using SQL Server 2014.
To fix the issue, I had to install SQL Server 2012's SharedManagementObject.msi
from the below site.
http://www.microsoft.com/en-us/download/details.aspx?id=35580
Note: You can use https://stackoverflow.com/a/19246011/1030460 answer but focus on the error version to select the download instead of focusing on SQL Server version.
Implicit waits are used to provide a default waiting time between each consecutive test step/command across the entire test script. Thus, subsequent test step would only execute when the specified amount of time have elapsed after executing the previous test step/command.
Explicit waits are used to halt the execution till the time a particular condition is met or the maximum time has elapsed. Unlike Implicit waits, Explicit waits are applied for a particular instance only.
I found this problem continued even when setting the BODY MARGIN to zero.
However it turns out there is an easy fix. All you need to do is give your HEADER tag a 1px border, aswell as setting the BODY MARGIN to zero, as shown below.
body { margin:0px; }
header { border:1px black solid; }
If you have any H1, H2, tags within your HEADER you will also need to set the MARGIN for these tags to zero, this will get rid of any extra space which may show up.
Not sure why this works, but I use Chrome browser. Obviously you can also change the colour of the border to match your header colour.
This thing worked for me. No any external liabraries used
define ("MAX_SIZE","3000");
function getExtension($str) {
$i = strrpos($str,".");
if (!$i) { return ""; }
$l = strlen($str) - $i;
$ext = substr($str,$i+1,$l);
return $ext;
}
$errors=0;
if($_SERVER["REQUEST_METHOD"] == "POST")
{
$image =$_FILES["image-1"]["name"];
$uploadedfile = $_FILES['image-1']['tmp_name'];
if ($image)
{
$filename = stripslashes($_FILES['image-1']['name']);
$extension = getExtension($filename);
$extension = strtolower($extension);
if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png") && ($extension != "gif"))
{
echo "Unknown Extension..!";
}
else
{
$size=filesize($_FILES['image-1']['tmp_name']);
if ($size > MAX_SIZE*1024)
{
echo "File Size Excedeed..!!";
}
if($extension=="jpg" || $extension=="jpeg" )
{
$uploadedfile = $_FILES['image-1']['tmp_name'];
$src = imagecreatefromjpeg($uploadedfile);
}
else if($extension=="png")
{
$uploadedfile = $_FILES['image-1']['tmp_name'];
$src = imagecreatefrompng($uploadedfile);
}
else
{
$src = imagecreatefromgif($uploadedfile);
echo $scr;
}
list($width,$height)=getimagesize($uploadedfile);
$newwidth=1000;
$newheight=($height/$width)*$newwidth;
$tmp=imagecreatetruecolor($newwidth,$newheight);
$newwidth1=1000;
$newheight1=($height/$width)*$newwidth1;
$tmp1=imagecreatetruecolor($newwidth1,$newheight1);
imagecopyresampled($tmp,$src,0,0,0,0,$newwidth,$newheight,$width,$height);
imagecopyresampled($tmp1,$src,0,0,0,0,$newwidth1,$newheight1,$width,$height);
$filename = "../images/product-image/Cars/". $_FILES['image-1']['name'];
$filename1 = "../images/product-image/Cars/small". $_FILES['image-1']['name'];
imagejpeg($tmp,$filename,100);
imagejpeg($tmp1,$filename1,100);
imagedestroy($src);
imagedestroy($tmp);
imagedestroy($tmp1);
}}
}
I faced this issue few days back and this is the approach I followed and it works for me.
For me this was happening when i was trying to fetch data using axios or fetch libraries as i am under a corporate firewall, so we had certain particular certificates which node js certificate store was not able to point to.
So for my loclahost i followed this approach. I created a folder in my project and kept the entire chain of certificates in the folder and in my scripts for dev-server(package.json) i added this alongwith server script so that node js can reference the path.
"dev-server":set NODE_EXTRA_CA_CERTS=certificates/certs-bundle.crt
For my servers(different environments),I created a new environment variable as below and added it.I was using Openshift,but i suppose the concept will be same for others as well.
"name":NODE_EXTRA_CA_CERTS
"value":certificates/certs-bundle.crt
I didn't generate any certificate in my case as the entire chain of certificates was already available for me.
How about something like this...
Dim rs As RecordSet
Set rs = Currentdb.OpenRecordSet("SELECT PictureLocation, ID FROM MyAccessTable;")
Do While Not rs.EOF
Debug.Print rs("PictureLocation") & " - " & rs("ID")
rs.MoveNext
Loop
I recently had to build something similar. You can check it out in the snippet below.
The version I had to build uses the same button to start and stop the spinner, but you can manipulate to code if you have a button to start the spin and a different button to stop the spin
Basically, my code looks like this...
Run Code Snippet
var rocket = document.querySelector('.rocket');_x000D_
var btn = document.querySelector('.toggle');_x000D_
var rotate = false;_x000D_
var runner;_x000D_
var degrees = 0;_x000D_
_x000D_
function start(){_x000D_
runner = setInterval(function(){_x000D_
degrees++;_x000D_
rocket.style.webkitTransform = 'rotate(' + degrees + 'deg)';_x000D_
},50)_x000D_
}_x000D_
_x000D_
function stop(){_x000D_
clearInterval(runner);_x000D_
}_x000D_
_x000D_
btn.addEventListener('click', function(){_x000D_
if (!rotate){_x000D_
rotate = true;_x000D_
start();_x000D_
} else {_x000D_
rotate = false;_x000D_
stop();_x000D_
}_x000D_
})
_x000D_
body {_x000D_
background: #1e1e1e;_x000D_
} _x000D_
_x000D_
.rocket {_x000D_
width: 150px;_x000D_
height: 150px;_x000D_
margin: 1em;_x000D_
border: 3px dashed teal;_x000D_
border-radius: 50%;_x000D_
background-color: rgba(128,128,128,0.5);_x000D_
display: flex;_x000D_
justify-content: center;_x000D_
align-items: center;_x000D_
}_x000D_
_x000D_
.rocket h1 {_x000D_
margin: 0;_x000D_
padding: 0;_x000D_
font-size: .8em;_x000D_
color: skyblue;_x000D_
letter-spacing: 1em;_x000D_
text-shadow: 0 0 10px black;_x000D_
}_x000D_
_x000D_
.toggle {_x000D_
margin: 10px;_x000D_
background: #000;_x000D_
color: white;_x000D_
font-size: 1em;_x000D_
padding: .3em;_x000D_
border: 2px solid red;_x000D_
outline: none;_x000D_
letter-spacing: 3px;_x000D_
}
_x000D_
<div class="rocket"><h1>SPIN ME</h1></div>_x000D_
<button class="toggle">I/0</button>
_x000D_
To get started with dotnet core, SqlServer and EF core the below DBContextOptionsBuilder would sufice and you do not need to create App.config file. Do not forget to change the sever address and database name in the below code.
protected override void OnConfiguring(DbContextOptionsBuilder options)
=> options.UseSqlServer(@"Server=(localdb)\MSSQLLocalDB;Database=TestDB;Trusted_Connection=True;");
To use the EF core SqlServer provider and compile the above code install the EF SqlServer package
dotnet add package Microsoft.EntityFrameworkCore.SqlServer
After compilation before running the code do the following for the first time
dotnet tool install --global dotnet-ef
dotnet add package Microsoft.EntityFrameworkCore.Design
dotnet ef migrations add InitialCreate
dotnet ef database update
To run the code
dotnet run
vector<vector> matrix(row, vector(col, 0));
This will initialize a 2D vector of rows=row and columns = col with all initial values as 0. No need to initialize and use resize.
Since the vector is initialized with size, you can use "[]" operator as in array to modify the vector.
matrix[x][y] = 2;
To understand this peculiar behavior of hibernate, it is important to understand a few hibernate concepts -
Hibernate Object States
Transient - An object is in transient status if it has been instantiated and is still not associated with a Hibernate session.
Persistent - A persistent instance has a representation in the database and an identifier value. It might just have been saved or loaded, however, it is by definition in the scope of a Session.
Detached - A detached instance is an object that has been persistent, but its Session has been closed.
http://docs.jboss.org/hibernate/orm/3.3/reference/en/html/objectstate.html#objectstate-overview
Transaction Write-Behind
The next thing to understand is 'Transaction Write behind'. When objects attached to a hibernate session are modified they are not immediately propagated to the database. Hibernate does this for at least two different reasons.
- To perform batch inserts and updates.
- To propagate only the last change. If an object is updated more than once, it still fires only one update statement.
http://learningviacode.blogspot.com/2012/02/write-behind-technique-in-hibernate.html
First Level Cache
Hibernate has something called 'First Level Cache'. Whenever you pass an object to save()
, update()
or saveOrUpdate()
, and whenever you retrieve an object using load()
, get()
, list()
, iterate()
or scroll()
, that object is added to the internal cache of the Session. This is where it tracks changes to various objects.
Hibernate Intercepters and Object Lifecycle Listeners -
The Interceptor interface and listener callbacks from the session to the application, allow the application to inspect and/or manipulate properties of a persistent object before it is saved, updated, deleted or loaded. http://docs.jboss.org/hibernate/orm/4.0/hem/en-US/html/listeners.html#d0e3069
This section Updated
Cascading
Hibernate allows applications to define cascade relationships between associations. For example, 'cascade-delete'
from parent to child association will result in deletion of all children when a parent is deleted.
So, why are these important.
To be able to do transaction write-behind, to be able to track multiple changes to objects (object graphs) and to be able to execute lifecycle callbacks hibernate needs to know whether the object is transient/detached
and it needs to have the object in it's first level cache before it makes any changes to the underlying object and associated relationships.
That's why hibernate (sometimes) issues a 'SELECT'
statement to load the object (if it's not already loaded) in to it's first level cache before it makes changes to it.
Why does hibernate issue the 'SELECT' statement only sometimes?
Hibernate issues a 'SELECT'
statement to determine what state the object is in. If the select statement returns an object, the object is in detached
state and if it does not return an object, the object is in transient
state.
Coming to your scenario -
Delete - The 'Delete' issued a SELECT statement because hibernate needs to know if the object exists in the database or not. If the object exists in the database, hibernate considers it as detached
and then re-attches it to the session and processes delete lifecycle.
Update - Since you are explicitly calling 'Update'
instead of 'SaveOrUpdate'
, hibernate blindly assumes that the object is in detached
state, re-attaches the given object to the session first level cache and processes the update lifecycle. If it turns out that the object does not exist in the database contrary to hibernate's assumption, an exception is thrown when session flushes.
SaveOrUpdate - If you call 'SaveOrUpdate'
, hibernate has to determine the state of the object, so it uses a SELECT statement to determine if the object is in Transient/Detached
state. If the object is in transient
state, it processes the 'insert'
lifecycle and if the object is in detached
state, it processes the 'Update'
lifecycle.
SSRS will not accept duplicated columns so ensure that your query or store procedure is returning unique column names.
It's sad not to see any answers with an example.
Using Mysqli::$insert_id:
$sql="INSERT INTO table (col1, col2, col3) VALUES (val1, val2, val3)";
$mysqli->query($sql);
$last_inserted_id=$mysqli->insert_id; // returns last ID
Using PDO::lastInsertId:
$sql="INSERT INTO table (col1, col2, col3) VALUES (val1, val2, val3)";
$database->query($sql);
$last_inserted_id=$database->lastInsertId(); // returns last ID
Or
// First, checks if it isn't implemented yet.
if (!String.prototype.format) {
String.prototype.format = function() {
var args = arguments;
return this.replace(/{(\d+)}/g, function(match, number) {
return typeof args[number] != 'undefined'
? args[number]
: match
;
});
};
}
"{0} is dead, but {1} is alive! {0} {2}".format("ASP", "ASP.NET")
Both answers pulled from JavaScript equivalent to printf/string.format
You are using the wrong iteration counter, replace inp.charAt(i)
with inp.charAt(j)
.
In Typescript, I use this algorithm to calculate framerate and frametime averages:
let getTime = () => {
return new Date().getTime();
}
let frames: any[] = [];
let previousTime = getTime();
let framerate:number = 0;
let frametime:number = 0;
let updateStats = (samples:number=60) => {
samples = Math.max(samples, 1) >> 0;
if (frames.length === samples) {
let currentTime: number = getTime() - previousTime;
frametime = currentTime / samples;
framerate = 1000 * samples / currentTime;
previousTime = getTime();
frames = [];
}
frames.push(1);
}
usage:
statsUpdate();
// Print
stats.innerHTML = Math.round(framerate) + ' FPS ' + frametime.toFixed(2) + ' ms';
Tip: If samples is 1, the result is real-time framerate and frametime.
This is probably the best option in C#.
If you want to know if the string contains a whole number (integer):
string someString;
// ...
int myInt;
bool isNumerical = int.TryParse(someString, out myInt);
The TryParse method will try to convert the string to a number (integer) and if it succeeds it will return true and place the corresponding number in myInt. If it can't, it returns false.
Solutions using the int.Parse(someString)
alternative shown in other responses works, but it is much slower because throwing exceptions is very expensive. TryParse(...)
was added to the C# language in version 2, and until then you didn't have a choice. Now you do: you should therefore avoid the Parse()
alternative.
If you want to accept decimal numbers, the decimal class also has a .TryParse(...)
method. Replace int with decimal in the above discussion, and the same principles apply.
XmlDocument d = new XmlDocument();
d.Load(@"D:\Work_Time_Calculator\10-07-2013.xml");
XmlNodeList n = d.GetElementsByTagName("Short_Fall");
if(n != null) {
Console.WriteLine(n[0].InnerText); //Will output '08:29:57'
}
or you could wrap in foreach loop to print each value
XmlDocument d = new XmlDocument();
d.Load(@"D:\Work_Time_Calculator\10-07-2013.xml");
XmlNodeList n = d.GetElementsByTagName("Short_Fall");
if(n != null) {
foreach(XmlNode curr in n) {
Console.WriteLine(curr.InnerText);
}
}
Here’s a better starts with function:
function mb_startsWith($str, $prefix, $encoding=null) {
if (is_null($encoding)) $encoding = mb_internal_encoding();
return mb_substr($str, 0, mb_strlen($prefix, $encoding), $encoding) === $prefix;
}
Our DMS Software Reengineering Toolkit has static control/dataflow/points-to/call graph analysis that has been applied to huge systems (~~25 million lines) of C code, and produced such call graphs, including functions called via function pointers.
For Mac sudo chmod 755 /Applications/XAMPP/xamppfiles/phpmyadmin/config.inc.php Worked for me
Here is Java 8 code. I think this code will solve your problem.Happy Coding
LocalDate start = LocalDate.now();
LocalDate end = LocalDate.of(2016, 9, 1);//JAVA 9 release date
Long duration = start.until(end, ChronoUnit.DAYS);
System.out.println(duration);
// Do Any stuff Here there after
IntStream.iterate(0, i -> i + 1)
.limit(duration)
.forEach((i) -> {});
//old way of iteration
for (int i = 0; i < duration; i++)
System.out.print("" + i);// Do Any stuff Here
Neither. You set the isolation level to READ UNCOMMITTED
which is always better than giving individual lock hints. Or, better still, if you care about details like consistency, use snapshot isolation.
The easiest way is to put the declaration and definition in the same file, but it may cause over-sized excutable file. E.g.
class Foo
{
public:
template <typename T> void some_method(T t) {//...}
}
Also, it is possible to put template definition in the separate files, i.e. to put them in .cpp and .h files. All you need to do is to explicitly include the template instantiation to the .cpp files. E.g.
// .h file
class Foo
{
public:
template <typename T> void some_method(T t);
}
// .cpp file
//...
template <typename T> void Foo::some_method(T t)
{//...}
//...
template void Foo::some_method<int>(int);
template void Foo::some_method<double>(double);
I've had the same error and I solve it with: git merge -s recursive -X theirs origin/master
I know that you said that adding indexes is not an option but that would be the only option to eliminate the table scan you have. When you do a scan, SQL Server reads all 2 million rows on the table to fulfill your query.
this article provides more info but remember: Seek = good, Scan = bad.
Second, can't you eliminate the select * and select only the columns you need? Third, no "where" clause? Even if you have a index, since you are reading everything the best you will get is a index scan (which is better than a table scan, but it is not a seek, which is what you should aim for)
Try this
function checkForm($fields){
foreach($fields as $field){
if($field['required'] && strlen($_POST[$field['name']]) <= 0){
$field['value'] = "Some error";
}
}
return $field;
}
Using String#gsub
with regular expression:
"((String1))".gsub(/^\(+|\)+$/, '')
# => "String1"
"(((((( parentheses )))".gsub(/^\(+|\)+$/, '')
# => " parentheses "
This will remove surrounding parentheses only.
"(((((( This (is) string )))".gsub(/^\(+|\)+$/, '')
# => " This (is) string "
Those documents are outdated. I'm guessing the 1.6 in the URL is for Docker 1.6, not Compose 1.6. Check out the correct syntax here: https://docs.docker.com/compose/compose-file/#network_mode. You are looking for network_mode
when using the v2 YAML format.
Unfortunately I can't comment the answer from geza.
He is not just saying "put forward declarations into a separate header". He says that you have to spilt class definition headers and inline function definitions into different header files to allow "defered dependencies".
But his illustration is not really good. Because both classes (A and B) only need an incomplete type of each other (pointer fields / parameters).
To understand it better imagine that class A has a field of type B not B*. In addition class A and B want to define an inline function with parameters of the other type:
This simple code would not work:
// A.h
#pragme once
#include "B.h"
class A{
B b;
inline void Do(B b);
}
inline void A::Do(B b){
//do something with B
}
// B.h
#pragme once
class A;
class B{
A* b;
inline void Do(A a);
}
#include "A.h"
inline void B::Do(A a){
//do something with A
}
//main.cpp
#include "A.h"
#include "B.h"
It would result in the following code:
//main.cpp
//#include "A.h"
class A;
class B{
A* b;
inline void Do(A a);
}
inline void B::Do(A a){
//do something with A
}
class A{
B b;
inline void Do(B b);
}
inline void A::Do(B b){
//do something with B
}
//#include "B.h"
This code does not compile because B::Do needs a complete type of A which is defined later.
To make sure that it compiles the source code should look like this:
//main.cpp
class A;
class B{
A* b;
inline void Do(A a);
}
class A{
B b;
inline void Do(B b);
}
inline void B::Do(A a){
//do something with A
}
inline void A::Do(B b){
//do something with B
}
This is exactly possible with these two header files for each class wich needs to define inline functions. The only issue is that the circular classes can't just include the "public header".
To solve this issue I would like to suggest a preprocessor extension: #pragma process_pending_includes
This directive should defer the processing of the current file and complete all pending includes.
Use the Calendar-API:
// get Calendar instance
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
// substract 7 days
// If we give 7 there it will give 8 days back
cal.set(Calendar.DAY_OF_MONTH, cal.get(Calendar.DAY_OF_MONTH)-6);
// convert to date
Date myDate = cal.getTime();
Hope this helps. Have Fun!
The simple answer for this problem is to change the DOCK property of the Label. It is "NONE" by default.
This should work:
// Gets linearlayout
LinearLayout layout = findViewById(R.id.numberPadLayout);
// Gets the layout params that will allow you to resize the layout
LayoutParams params = layout.getLayoutParams();
// Changes the height and width to the specified *pixels*
params.height = 100;
params.width = 100;
layout.setLayoutParams(params);
If you want to convert dip to pixels, use this:
int height = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, <HEIGHT>, getResources().getDisplayMetrics());
Try this awk
awk -F, '{$0=$3}1' file
column3
,
Divide fields by ,
$0=$3
Set the line to only field 3
1
Print all out. (explained here)This could also be used:
awk -F, '{print $3}' file
The image needs to be in the same folder that your html page is in, then create a href to that folder with the picture name at the end. Example:
<img src="C:\users\home\pictures\picture.png"/>
To catch all the event surrounding model changes, can consider using
<input (ngModelChange)="inputFilter($event)"/>
It will detect copy / paste, keyup, any condition that changes the value of the model.
And then:
inputFilter(event: any) {
const pattern = /[0-9\+\-\ ]/;
let inputChar = String.fromCharCode(event.charCode);
if (!pattern.test(inputChar)) {
// invalid character, prevent input
event.preventDefault();
}
}
Ctrl+Shift+F to invoke the Auto Formatter
Ctrl+I to indent the selected part (or all) of you code.
var div = document.getElementById( 'div_id' );
div.onmouseover = function() {
this.style.backgroundColor = 'green';
var h2s = this.getElementsByTagName( 'h2' );
h2s[0].style.backgroundColor = 'blue';
};
div.onmouseout = function() {
this.style.backgroundColor = 'transparent';
var h2s = this.getElementsByTagName( 'h2' );
h2s[0].style.backgroundColor = 'transparent';
};
call your (windows-)git with cygpath
as parameter, in order to convert the "calling path". I m confused why that should be a problem.
You can convert your string to a DateTime
value like this:
DateTime date = DateTime.Parse(something);
You can convert a DateTime
value to a formatted string like this:
date.ToString("yyyyMMdd");
Remember that your img is not really a DOM element but a javascript expression.
This is a JSX attribute expression. Put curly braces around the src string expression and it will work. See http://facebook.github.io/react/docs/jsx-in-depth.html#attribute-expressions
In javascript, the class attribute is reference using className. See the note in this section: http://facebook.github.io/react/docs/jsx-in-depth.html#react-composite-components
/** @jsx React.DOM */
var Hello = React.createClass({
render: function() {
return <div><img src={'http://placehold.it/400x20&text=slide1'} alt="boohoo" className="img-responsive"/><span>Hello {this.props.name}</span></div>;
}
});
React.renderComponent(<Hello name="World" />, document.body);
You've added an extra level of abstraction by calling the method with reflection. The reflection layer wraps any exception in an InvocationTargetException
, which lets you tell the difference between an exception actually caused by a failure in the reflection call (maybe your argument list wasn't valid, for example) and a failure within the method called.
Just unwrap the cause within the InvocationTargetException
and you'll get to the original one.
Take a look at Directory.GetFiles Method (String, String) (MSDN).
This method returns all the files as an array of filenames.
My answer won't probably be useful to the writer of this question (I am 8 months late so not the right timing I guess) but I think it will probably be useful for many other developers that might come across this answer.
Today, I just released (in the name of my company) an HTML to POJO complete framework that you can use to map HTML to any POJO class with simply some annotations. The library itself is quite handy and features many other things all the while being very pluggable. You can have a look to it right here : https://github.com/whimtrip/jwht-htmltopojo
Imagine we need to parse the following html page :
<html>
<head>
<title>A Simple HTML Document</title>
</head>
<body>
<div class="restaurant">
<h1>A la bonne Franquette</h1>
<p>French cuisine restaurant for gourmet of fellow french people</p>
<div class="location">
<p>in <span>London</span></p>
</div>
<p>Restaurant n*18,190. Ranked 113 out of 1,550 restaurants</p>
<div class="meals">
<div class="meal">
<p>Veal Cutlet</p>
<p rating-color="green">4.5/5 stars</p>
<p>Chef Mr. Frenchie</p>
</div>
<div class="meal">
<p>Ratatouille</p>
<p rating-color="orange">3.6/5 stars</p>
<p>Chef Mr. Frenchie and Mme. French-Cuisine</p>
</div>
</div>
</div>
</body>
</html>
Let's create the POJOs we want to map it to :
public class Restaurant {
@Selector( value = "div.restaurant > h1")
private String name;
@Selector( value = "div.restaurant > p:nth-child(2)")
private String description;
@Selector( value = "div.restaurant > div:nth-child(3) > p > span")
private String location;
@Selector(
value = "div.restaurant > p:nth-child(4)"
format = "^Restaurant n\*([0-9,]+). Ranked ([0-9,]+) out of ([0-9,]+) restaurants$",
indexForRegexPattern = 1,
useDeserializer = true,
deserializer = ReplacerDeserializer.class,
preConvert = true,
postConvert = false
)
// so that the number becomes a valid number as they are shown in this format : 18,190
@ReplaceWith(value = ",", with = "")
private Long id;
@Selector(
value = "div.restaurant > p:nth-child(4)"
format = "^Restaurant n\*([0-9,]+). Ranked ([0-9,]+) out of ([0-9,]+) restaurants$",
// This time, we want the second regex group and not the first one anymore
indexForRegexPattern = 2,
useDeserializer = true,
deserializer = ReplacerDeserializer.class,
preConvert = true,
postConvert = false
)
// so that the number becomes a valid number as they are shown in this format : 18,190
@ReplaceWith(value = ",", with = "")
private Integer rank;
@Selector(value = ".meal")
private List<Meal> meals;
// getters and setters
}
And now the Meal
class as well :
public class Meal {
@Selector(value = "p:nth-child(1)")
private String name;
@Selector(
value = "p:nth-child(2)",
format = "^([0-9.]+)\/5 stars$",
indexForRegexPattern = 1
)
private Float stars;
@Selector(
value = "p:nth-child(2)",
// rating-color custom attribute can be used as well
attr = "rating-color"
)
private String ratingColor;
@Selector(
value = "p:nth-child(3)"
)
private String chefs;
// getters and setters.
}
We provided some more explanations on the above code on our github page.
For the moment, let's see how to scrap this.
private static final String MY_HTML_FILE = "my-html-file.html";
public static void main(String[] args) {
HtmlToPojoEngine htmlToPojoEngine = HtmlToPojoEngine.create();
HtmlAdapter<Restaurant> adapter = htmlToPojoEngine.adapter(Restaurant.class);
// If they were several restaurants in the same page,
// you would need to create a parent POJO containing
// a list of Restaurants as shown with the meals here
Restaurant restaurant = adapter.fromHtml(getHtmlBody());
// That's it, do some magic now!
}
private static String getHtmlBody() throws IOException {
byte[] encoded = Files.readAllBytes(Paths.get(MY_HTML_FILE));
return new String(encoded, Charset.forName("UTF-8"));
}
Another short example can be found here
Hope this will help someone out there!
Have you looked at your build configuration it should like that if you use maven 3 and JDK 7
<build>
<finalName>SpringApp</finalName>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
...
</plugins>
...
</build>
You can also try copying the file to the SD Card folder, which is a public folder, then you can copy the file to your PC where you can use sqlite to access it.
Here is some code you can use to copy the file from data/data to a public storage folder:
private void copyFile(final Context context) {
try {
File sd = Environment.getExternalStorageDirectory();
File data = Environment.getDataDirectory();
if (sd.canWrite()) {
String currentDBPath =
context.getDatabasePath(DATABASE_NAME).getAbsolutePath();
String backupDBPath = "data.db";
File currentDB = new File(currentDBPath);
File backupDB = new File(sd, backupDBPath);
if (currentDB.exists()) {
FileChannel src = new FileInputStream(currentDB).getChannel();
FileChannel dst = new FileOutputStream(backupDB).getChannel();
dst.transferFrom(src, 0, src.size());
src.close();
dst.close();
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
Manifest:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_INTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_INTERNAL_STORAGE" />
You generally want to ignore the SIGPIPE
and handle the error directly in your code. This is because signal handlers in C have many restrictions on what they can do.
The most portable way to do this is to set the SIGPIPE
handler to SIG_IGN
. This will prevent any socket or pipe write from causing a SIGPIPE
signal.
To ignore the SIGPIPE
signal, use the following code:
signal(SIGPIPE, SIG_IGN);
If you're using the send()
call, another option is to use the MSG_NOSIGNAL
option, which will turn the SIGPIPE
behavior off on a per call basis. Note that not all operating systems support the MSG_NOSIGNAL
flag.
Lastly, you may also want to consider the SO_SIGNOPIPE
socket flag that can be set with setsockopt()
on some operating systems. This will prevent SIGPIPE
from being caused by writes just to the sockets it is set on.
As an extension of accepted answer Oracle internally uses ROW_NUMBER/RANK
functions. OFFSET FETCH
syntax is a syntax sugar.
It could be observed by using DBMS_UTILITY.EXPAND_SQL_TEXT
procedure:
Preparing sample:
CREATE TABLE rownum_order_test (
val NUMBER
);
INSERT ALL
INTO rownum_order_test
SELECT level
FROM dual
CONNECT BY level <= 10;
COMMIT;
Query:
SELECT val
FROM rownum_order_test
ORDER BY val DESC
FETCH FIRST 5 ROWS ONLY;
is regular:
SELECT "A1"."VAL" "VAL"
FROM (SELECT "A2"."VAL" "VAL","A2"."VAL" "rowlimit_$_0",
ROW_NUMBER() OVER ( ORDER BY "A2"."VAL" DESC ) "rowlimit_$$_rownumber"
FROM "ROWNUM_ORDER_TEST" "A2") "A1"
WHERE "A1"."rowlimit_$$_rownumber"<=5 ORDER BY "A1"."rowlimit_$_0" DESC;
Fetching expanded SQL text:
declare
x VARCHAR2(1000);
begin
dbms_utility.expand_sql_text(
input_sql_text => '
SELECT val
FROM rownum_order_test
ORDER BY val DESC
FETCH FIRST 5 ROWS ONLY',
output_sql_text => x);
dbms_output.put_line(x);
end;
/
WITH TIES
is expanded as RANK
:
declare
x VARCHAR2(1000);
begin
dbms_utility.expand_sql_text(
input_sql_text => '
SELECT val
FROM rownum_order_test
ORDER BY val DESC
FETCH FIRST 5 ROWS WITH TIES',
output_sql_text => x);
dbms_output.put_line(x);
end;
/
SELECT "A1"."VAL" "VAL"
FROM (SELECT "A2"."VAL" "VAL","A2"."VAL" "rowlimit_$_0",
RANK() OVER ( ORDER BY "A2"."VAL" DESC ) "rowlimit_$$_rank"
FROM "ROWNUM_ORDER_TEST" "A2") "A1"
WHERE "A1"."rowlimit_$$_rank"<=5 ORDER BY "A1"."rowlimit_$_0" DESC
and offset:
declare
x VARCHAR2(1000);
begin
dbms_utility.expand_sql_text(
input_sql_text => '
SELECT val
FROM rownum_order_test
ORDER BY val
OFFSET 4 ROWS FETCH NEXT 4 ROWS ONLY',
output_sql_text => x);
dbms_output.put_line(x);
end;
/
SELECT "A1"."VAL" "VAL"
FROM (SELECT "A2"."VAL" "VAL","A2"."VAL" "rowlimit_$_0",
ROW_NUMBER() OVER ( ORDER BY "A2"."VAL") "rowlimit_$$_rownumber"
FROM "ROWNUM_ORDER_TEST" "A2") "A1"
WHERE "A1"."rowlimit_$$_rownumber"<=CASE WHEN (4>=0) THEN FLOOR(TO_NUMBER(4))
ELSE 0 END +4 AND "A1"."rowlimit_$$_rownumber">4
ORDER BY "A1"."rowlimit_$_0"
Reflection is slow, though object allocation is not as hopeless as other aspects of reflection. Achieving equivalent performance with reflection-based instantiation requires you to write your code so the jit can tell which class is being instantiated. If the identity of the class can't be determined, then the allocation code can't be inlined. Worse, escape analysis fails, and the object can't be stack-allocated. If you're lucky, the JVM's run-time profiling may come to the rescue if this code gets hot, and may determine dynamically which class predominates and may optimize for that one.
Be aware the microbenchmarks in this thread are deeply flawed, so take them with a grain of salt. The least flawed by far is Peter Lawrey's: it does warmup runs to get the methods jitted, and it (consciously) defeats escape analysis to ensure the allocations are actually occurring. Even that one has its problems, though: for example, the tremendous number of array stores can be expected to defeat caches and store buffers, so this will wind up being mostly a memory benchmark if your allocations are very fast. (Kudos to Peter on getting the conclusion right though: that the difference is "150ns" rather than "2.5x". I suspect he does this kind of thing for a living.)
var rotator = function(){
widget.Rotator.rotate();
setTimeout(rotator,5000);
};
rotator();
Or:
setInterval(
function(){ widget.Rotator.rotate() },
5000
);
Or:
setInterval(
widget.Rotator.rotate.bind(widget.Rotator),
5000
);
We have used http://www.aspnetmx.com/ with a degree of success for a few years now. You can choose the level you want to validate at (e.g. syntax check, check for the domain, mx records or the actual email).
For front-end forms we generally verify that the domain exists and the syntax is correct, then we do stricter verification to clean out our database before doing bulk mail-outs.
I had this edge case, where I checked out a previous version of the code in which my file directory structure was different:
git checkout 1.87.1
warning: unable to unlink web/sites/default/default.settings.php: Permission denied
... other warnings ...
Note: checking out '1.87.1'.
You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.
If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again.
Example:
git checkout -b <new-branch-name>
HEAD is now at 50a7153d7... Merge branch 'hotfix/1.87.1'
In a case like this you may need to use --force (when you know that going back to the original branch and discarding changes is a safe thing to do).
git checkout master
did not work:
$ git checkout master
error: The following untracked working tree files would be overwritten by checkout:
web/sites/default/default.settings.php
... other files ...
git checkout master --force
(or git checkout master -f
) worked:
git checkout master -f
Previous HEAD position was 50a7153d7... Merge branch 'hotfix/1.87.1'
Switched to branch 'master'
Your branch is up-to-date with 'origin/master'.
Most probably, you didn't install any SQL Server Engine service. If no SQL Server engine is installed, no service will appear in the SQL Server Configuration Manager tool. Consider that the packages SQLManagementStudio_Architecture_Language.exe
and SQLEXPR_Architecture_Language.exe
, available in the Microsoft site contain, respectively only the Management Studio GUI Tools and the SQL Server engine.
If you want to have a full featured SQL Server installation, with the database engine and Management Studio, download the installer file of SQL Server with Advanced Services. Moreover, to have a sample database in order to perform some local tests, use the Adventure Works database.
Considering the package of SQL Server with Advanced Services, at the beginning at the installation you should see something like this (the screenshot below is about SQL Server 2008 Express, but the feature selection is very similar). The checkbox next to "Database Engine Services" must be checked. In the next steps, you will be able to configure the instance settings and other options.
Execute again the installation process and select the database engine services in the feature selection step. At the end of the installation, you should be able to see the SQL Server services in the SQL Server Configuration Manager.
In order to get screen resolution you can also use jquery. This link help you very much to resolve.
In my case, my problem was different. I was creating in my bash_profile an alias like:
alias python=/usr/local/bin/python3
And even if I activate my environment, when I ran the command, the python interpreter accessed was from the system and not from my environment.
I just removed the alias from bash_profile and it worked fine.
Here is working example for a generic <table>
. (question links-broken)
Extracting the table from here countries by GDP (Gross Domestic Product).
htmltable = soup.find('table', { 'class' : 'table table-striped' })
# where the dictionary specify unique attributes for the 'table' tag
The tableDataText
function parses a html segment started with tag <table>
followed by multiple <tr>
(table rows) and inner <td>
(table data) tags. It returns a list of rows with inner columns. Accepts only one <th>
(table header/data) in the first row.
def tableDataText(table):
rows = []
trs = table.find_all('tr')
headerow = [td.get_text(strip=True) for td in trs[0].find_all('th')] # header row
if headerow: # if there is a header row include first
rows.append(headerow)
trs = trs[1:]
for tr in trs: # for every table row
rows.append([td.get_text(strip=True) for td in tr.find_all('td')]) # data row
return rows
Using it we get (first two rows).
list_table = tableDataText(htmltable)
list_table[:2]
[['Rank',
'Name',
"GDP (IMF '19)",
"GDP (UN '16)",
'GDP Per Capita',
'2019 Population'],
['1',
'United States',
'21.41 trillion',
'18.62 trillion',
'$65,064',
'329,064,917']]
That can be easily transformed in a pandas.DataFrame
for more advanced tools.
import pandas as pd
dftable = pd.DataFrame(list_table[1:], columns=list_table[0])
dftable.head(4)
There are a lot of answers here with useful info (and some wrong info) spread about, I'd like to bring it all together.
The short answer to the question is to check for DBNull - almost everyone agrees on this bit :)
Rather than using a helper method to read nullable values per SQL data type a generic method allows us to address this with a lot less code. However, you can't have a single generic method for both nullable value types and reference types, this is discussed at length in Nullable type as a generic parameter possible? and C# generic type constraint for everything nullable.
So, following on from the answers from @ZXX and @getpsyched we end up with this, 2 methods for getting nullable values and I've added a 3rd for non-null values (it completes the set based on method naming).
public static T? GetNullableValueType<T>(this SqlDataReader sqlDataReader, string columnName) where T : struct
{
int columnOrdinal = sqlDataReader.GetOrdinal(columnName);
return sqlDataReader.IsDBNull(columnOrdinal) ? (T?)null : sqlDataReader.GetFieldValue<T>(columnOrdinal);
}
public static T GetNullableReferenceType<T>(this SqlDataReader sqlDataReader, string columnName) where T : class
{
int columnOrdinal = sqlDataReader.GetOrdinal(columnName);
return sqlDataReader.IsDBNull(columnOrdinal) ? null : sqlDataReader.GetFieldValue<T>(columnOrdinal);
}
public static T GetNonNullValue<T>(this SqlDataReader sqlDataReader, string columnName)
{
int columnOrdinal = sqlDataReader.GetOrdinal(columnName);
return sqlDataReader.GetFieldValue<T>(columnOrdinal);
}
I usually use column names, alter these if you use column indexes. Based on these method names I can tell whether I'm expecting the data to be nullable or not, quite useful when looking at code written a long time ago.
Tips;
Lastly, whilst testing the above methods across all SQL Server data types I discovered you can't directly get a char[] from a SqlDataReader, if you want a char[] you will have to get a string and use ToCharArray().
Here's another variant that spreads the "remaining" elements evenly among all the chunks, one at a time until there are none left. In this implementation, the larger chunks occur at the beginning the process.
def chunks(l, k):
""" Yield k successive chunks from l."""
if k < 1:
yield []
raise StopIteration
n = len(l)
avg = n/k
remainders = n % k
start, end = 0, avg
while start < n:
if remainders > 0:
end = end + 1
remainders = remainders - 1
yield l[start:end]
start, end = end, end+avg
For example, generate 4 chunks from a list of 14 elements:
>>> list(chunks(range(14), 4))
[[0, 1, 2, 3], [4, 5, 6, 7], [8, 9, 10], [11, 12, 13]]
>>> map(len, list(chunks(range(14), 4)))
[4, 4, 3, 3]
This is possible using this cross browser javascript implementation of the HTML5 saveAs
function: https://github.com/koffsyrup/FileSaver.js
If all you want to do is save text then the above script works in all browsers(including all versions of IE), using nothing but JS.
If the class implements the method directly, it will not use the traits version. Perhaps what you are thinking of is:
trait A {
function calc($v) {
return $v+1;
}
}
class MyClass {
function calc($v) {
return $v+2;
}
}
class MyChildClass extends MyClass{
}
class MyTraitChildClass extends MyClass{
use A;
}
print (new MyChildClass())->calc(2); // will print 4
print (new MyTraitChildClass())->calc(2); // will print 3
Because the child classes do not implement the method directly, they will first use that of the trait if there otherwise use that of the parent class.
If you want, the trait can use method in the parent class (assuming you know the method would be there) e.g.
trait A {
function calc($v) {
return parent::calc($v*3);
}
}
// .... other code from above
print (new MyTraitChildClass())->calc(2); // will print 8 (2*3 + 2)
You can also provide for ways to override, but still access the trait method as follows:
trait A {
function trait_calc($v) {
return $v*3;
}
}
class MyClass {
function calc($v) {
return $v+2;
}
}
class MyTraitChildClass extends MyClass{
use A {
A::trait_calc as calc;
}
}
class MySecondTraitChildClass extends MyClass{
use A {
A::trait_calc as calc;
}
public function calc($v) {
return $this->trait_calc($v)+.5;
}
}
print (new MyTraitChildClass())->calc(2); // will print 6
echo "\n";
print (new MySecondTraitChildClass())->calc(2); // will print 6.5
You can see it work at http://sandbox.onlinephpfunctions.com/code/e53f6e8f9834aea5e038aec4766ac7e1c19cc2b5
Try this:
@echo off
for /f "tokens=*" %%a in (input.txt) do (
echo line=%%a
)
pause
because of the tokens=*
everything is captured into %a
edit: to reply to your comment, you would have to do that this way:
@echo off
for /f "tokens=*" %%a in (input.txt) do call :processline %%a
pause
goto :eof
:processline
echo line=%*
goto :eof
:eof
Because of the spaces, you can't use %1
, because that would only contain the part until the first space. And because the line contains quotes, you can also not use :processline "%%a"
in combination with %~1
. So you need to use %*
which gets %1 %2 %3 ...
, so the whole line.
The del
statement removes an element:
del d[key]
Note that this mutates the existing dictionary, so the contents of the dictionary changes for anybody else who has a reference to the same instance. To return a new dictionary, make a copy of the dictionary:
def removekey(d, key):
r = dict(d)
del r[key]
return r
The dict()
constructor makes a shallow copy. To make a deep copy, see the copy
module.
Note that making a copy for every dict del
/assignment/etc. means you're going from constant time to linear time, and also using linear space. For small dicts, this is not a problem. But if you're planning to make lots of copies of large dicts, you probably want a different data structure, like a HAMT (as described in this answer).
Jackson 2.x+ use
mapper.getSerializationConfig().withSerializationInclusion(JsonInclude.Include.NON_NULL);
dt
accessorA common source of confusion revolves around when to use .year
and when to use .dt.year
.
The former is an attribute for pd.DatetimeIndex
objects; the latter for pd.Series
objects. Consider this dataframe:
df = pd.DataFrame({'Dates': pd.to_datetime(['2018-01-01', '2018-10-20', '2018-12-25'])},
index=pd.to_datetime(['2000-01-01', '2000-01-02', '2000-01-03']))
The definition of the series and index look similar, but the pd.DataFrame
constructor converts them to different types:
type(df.index) # pandas.tseries.index.DatetimeIndex
type(df['Dates']) # pandas.core.series.Series
The DatetimeIndex
object has a direct year
attribute, while the Series
object must use the dt
accessor. Similarly for month
:
df.index.month # array([1, 1, 1])
df['Dates'].dt.month.values # array([ 1, 10, 12], dtype=int64)
A subtle but important difference worth noting is that df.index.month
gives a NumPy array, while df['Dates'].dt.month
gives a Pandas series. Above, we use pd.Series.values
to extract the NumPy array representation.
Nothing easier than that man. Try this one:
<?xml version="1.0" encoding="iso-8859-1"?>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.1/themes/base/jquery-ui.css" type="text/css" />
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.1/jquery-ui.min.js"></script>
<style>
.loading { background: url(/img/spinner.gif) center no-repeat !important}
</style>
</head>
<body>
<a class="ajax" href="http://www.google.com">
Open as dialog
</a>
<script type="text/javascript">
$(function (){
$('a.ajax').click(function() {
var url = this.href;
// show a spinner or something via css
var dialog = $('<div style="display:none" class="loading"></div>').appendTo('body');
// open the dialog
dialog.dialog({
// add a close listener to prevent adding multiple divs to the document
close: function(event, ui) {
// remove div with all data and events
dialog.remove();
},
modal: true
});
// load remote content
dialog.load(
url,
{}, // omit this param object to issue a GET request instead a POST request, otherwise you may provide post parameters within the object
function (responseText, textStatus, XMLHttpRequest) {
// remove the loading class
dialog.removeClass('loading');
}
);
//prevent the browser to follow the link
return false;
});
});
</script>
</body>
</html>
Note that you can't load remote from local, so you'll have to upload this to a server or whatever. Also note that you can't load from foreign domains, so you should replace href of the link to a document hosted on the same domain (and here's the workaround).
Cheers
If you are looking for UML sequence diagrams, you might be interested in pkf-umlsd, which is based on TiKZ. Nice demos can be found here.
If your file idea/workspace.xml
is added to .gitignore (or its parent folder) just add
it manually to git version control. Also you can add it using TortoiseGit. After the next push you will see, that your problem is solved.
How about leaving it empty, what is wrong with that?
<form name="form1" id="mainForm" method="post" enctype="multipart/form-data" action="">
</form>
Also, you can omit the action attribute and it will work as expected.
I like to use a rolling file appender to write the logging info to a file. My log4j properties file typically looks something like this. I prefer this way since I like to make package specific logging in case I need varying degrees of logging for different packages. Only one package is mentioned in the example.
log4j.appender.RCS=org.apache.log4j.DailyRollingFileAppender
log4j.appender.RCS.File.DateFormat='.'yyyy-ww
#define output location
log4j.appender.RCS.File=C:temp/logs/MyService.log
#define the file layout
log4j.appender.RCS.layout=org.apache.log4j.PatternLayout
log4j.appender.RCS.layout.ConversionPattern=%d{yyyy-MM-dd hh:mm a} %5 %c{1}: Line#%L - %m%n
log4j.rootLogger=warn
#Define package specific logging
log4j.logger.MyService=debug, RCS
IMPORTANT UPDATE:
Due to use of only application/msword, application/vnd.ms-excel, application/vnd.ms-powerpoint... allows only till 2003 MS products, and not newest. I've found this:
application/msword, application/vnd.openxmlformats-officedocument.wordprocessingml.document, application/vnd.ms-powerpoint, application/vnd.openxmlformats-officedocument.presentationml.slideshow, application/vnd.openxmlformats-officedocument.presentationml.presentation
And that includes the new ones. For other files, you can retrieve the MIME TYPE in your file by this way (pardon the lang)(in MIME list types, there aren't this ones):
You can select & copy the type of content
The various overloads of Runtime.getRuntime().exec(...)
take either an array of strings or a single string. The single-string overloads of exec()
will tokenise the string into an array of arguments, before passing the string array onto one of the exec()
overloads that takes a string array. The ProcessBuilder
constructors, on the other hand, only take a varargs array of strings or a List
of strings, where each string in the array or list is assumed to be an individual argument. Either way, the arguments obtained are then joined up into a string that is passed to the OS to execute.
So, for example, on Windows,
Runtime.getRuntime().exec("C:\DoStuff.exe -arg1 -arg2");
will run a DoStuff.exe
program with the two given arguments. In this case, the command-line gets tokenised and put back together. However,
ProcessBuilder b = new ProcessBuilder("C:\DoStuff.exe -arg1 -arg2");
will fail, unless there happens to be a program whose name is DoStuff.exe -arg1 -arg2
in C:\
. This is because there's no tokenisation: the command to run is assumed to have already been tokenised. Instead, you should use
ProcessBuilder b = new ProcessBuilder("C:\DoStuff.exe", "-arg1", "-arg2");
or alternatively
List<String> params = java.util.Arrays.asList("C:\DoStuff.exe", "-arg1", "-arg2");
ProcessBuilder b = new ProcessBuilder(params);
for (String name : new ArrayList<String>(names)) {
// Do something
names.remove(nameToRemove);
}
You clone the list names
and iterate through the clone while you remove from the original list. A bit cleaner than the top answer.
Node.js 0.8 has fs.appendFile
:
fs.appendFile('message.txt', 'data to append', (err) => {
if (err) throw err;
console.log('The "data to append" was appended to file!');
});
Try:
TRUNCATE dataflow_batch_export;
TRUNCATE dataflow_batch_import;
TRUNCATE log_customer;
TRUNCATE log_quote;
TRUNCATE log_summary;
TRUNCATE log_summary_type;
TRUNCATE log_url;
TRUNCATE log_url_info;
TRUNCATE log_visitor;
TRUNCATE log_visitor_info;
TRUNCATE log_visitor_online;
TRUNCATE report_viewed_product_index;
TRUNCATE report_compared_product_index;
TRUNCATE report_event;
TRUNCATE index_event;
You can also refer to following tutorial:
http://www.crucialwebhost.com/kb/article/log-cache-maintenance-script/
Thanks
Beside the quite obvious reason (IIS), there is another reason that is common enough for this problem. It is worth to quote this question and its answer here:
http://stackoverflow.com/questions/22994888/why-skype-using-http-or-https-ports-80-and-443
So, if you have Skype installed in the computer, be sure to check this as well. The solution is quoted here:
To turn off and disable Skype usage of and listening on port 80 and port 443, open the Skype window, then click on Tools menu and select Options. Click on Advanced tab, and go to Connection sub-tab. Untick or uncheck the check box for Use port 80 and 443 as an alternatives for incoming connections option. Click on Save button and then restart Skype to make the change effective.
This is in PYSPARK
path="Your file path with file name"
df=spark.read.format("csv").option("header","true").option("inferSchema","true").load(path)
Then you can check
df.show(5)
df.count()
Eclipse is a runtime environment for plugins. Virtually everything you see in Eclipse is the result of plugins installed on Eclipse, rather than Eclipse itself.
The .project
file is maintained by the core Eclipse platform, and its goal is to describe the project from a generic, plugin-independent Eclipse view. What's the project's name? what other projects in the workspace does it refer to? What are the builders that are used in order to build the project? (remember, the concept of "build" doesn't pertain specifically to Java projects, but also to other types of projects)
The .classpath
file is maintained by Eclipse's JDT feature (feature = set of plugins). JDT holds multiple such "meta" files in the project (see the .settings
directory inside the project); the .classpath
file is just one of them. Specifically, the .classpath
file contains information that the JDT feature needs in order to properly compile the project: the project's source folders (that is, what to compile); the output folders (where to compile to); and classpath entries (such as other projects in the workspace, arbitrary JAR files on the file system, and so forth).
Blindly copying such files from one machine to another may be risky. For example, if arbitrary JAR files are placed on the classpath (that is, JAR files that are located outside the workspace and are referred-to by absolute path naming), the .classpath
file is rendered non-portable and must be modified in order to be portable. There are certain best practices that can be followed to guarantee .classpath
file portability.
One can also try this solution :
To find the value, which is written in span of table
htmlContent
<table>
<tr>
<th>
ID
</th>
<th>
Name
</th>
</tr>
<tr>
<td>
<span name="spanId" class="spanclass">ID123</span>
</td>
<td>
<span>Bonny</span>
</td>
</tr>
</table>
Python code
soup = BeautifulSoup(htmlContent, "lxml")
soup.prettify()
tables = soup.find_all("table")
for table in tables:
storeValueRows = table.find_all("tr")
thValue = storeValueRows[0].find_all("th")[0].string
if (thValue == "ID"): # with this condition I am verifying that this html is correct, that I wanted.
value = storeValueRows[1].find_all("span")[0].string
value = value.strip()
# storeValueRows[1] will represent <tr> tag of table located at first index and find_all("span")[0] will give me <span> tag and '.string' will give me value
# value.strip() - will remove space from start and end of the string.
# find using attribute :
value = storeValueRows[1].find("span", {"name":"spanId"})['class']
print value
# this will print spanclass
This can be accomplished with a simple VBA function. Excel has support for a Worksheet Change Sub which can be programmed to put a date in a related column every time it fires.
Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Column = 2 And Target.Offset(0, 3).Value = "" Then
Target.Offset(0, 3) = Format(Now(), "HH:MM:SS")
End If
End Sub
A quick explanation. The following "if" statement checks for two things: (1) if it is the second column that changed (Column B), and (2) if the cell 3 columns over (Column E) is currently empty.
If Target.Column = 2 And Target.Offset(0, 3).Value = "" Then
If both conditions are true, then it puts the date into the cell in Column E with the NOW()
function.
Target.Offset(0, 3) = Format(Now(), "HH:MM:SS")
It represents the scope (the lifetime) of the bean. This is easier to understand if you are familiar with "under the covers" working of a basic servlet web application: How do servlets work? Instantiation, sessions, shared variables and multithreading.
@Request/View/Flow/Session/ApplicationScoped
A @RequestScoped
bean lives as long as a single HTTP request-response cycle (note that an Ajax request counts as a single HTTP request too). A @ViewScoped
bean lives as long as you're interacting with the same JSF view by postbacks which call action methods returning null
/void
without any navigation/redirect. A @FlowScoped
bean lives as long as you're navigating through the specified collection of views registered in the flow configuration file. A @SessionScoped
bean lives as long as the established HTTP session. An @ApplicationScoped
bean lives as long as the web application runs. Note that the CDI @Model
is basically a stereotype for @Named @RequestScoped
, so same rules apply.
Which scope to choose depends solely on the data (the state) the bean holds and represents. Use @RequestScoped
for simple and non-ajax forms/presentations. Use @ViewScoped
for rich ajax-enabled dynamic views (ajaxbased validation, rendering, dialogs, etc). Use @FlowScoped
for the "wizard" ("questionnaire") pattern of collecting input data spread over multiple pages. Use @SessionScoped
for client specific data, such as the logged-in user and user preferences (language, etc). Use @ApplicationScoped
for application wide data/constants, such as dropdown lists which are the same for everyone, or managed beans without any instance variables and having only methods.
Abusing an @ApplicationScoped
bean for session/view/request scoped data would make it to be shared among all users, so anyone else can see each other's data which is just plain wrong. Abusing a @SessionScoped
bean for view/request scoped data would make it to be shared among all tabs/windows in a single browser session, so the enduser may experience inconsitenties when interacting with every view after switching between tabs which is bad for user experience. Abusing a @RequestScoped
bean for view scoped data would make view scoped data to be reinitialized to default on every single (ajax) postback, causing possibly non-working forms (see also points 4 and 5 here). Abusing a @ViewScoped
bean for request, session or application scoped data, and abusing a @SessionScoped
bean for application scoped data doesn't affect the client, but it unnecessarily occupies server memory and is plain inefficient.
Note that the scope should rather not be chosen based on performance implications, unless you really have a low memory footprint and want to go completely stateless; you'd need to use exclusively @RequestScoped
beans and fiddle with request parameters to maintain the client's state. Also note that when you have a single JSF page with differently scoped data, then it's perfectly valid to put them in separate backing beans in a scope matching the data's scope. The beans can just access each other via @ManagedProperty
in case of JSF managed beans or @Inject
in case of CDI managed beans.
@CustomScoped/NoneScoped/Dependent
It's not mentioned in your question, but (legacy) JSF also supports @CustomScoped
and @NoneScoped
, which are rarely used in real world. The @CustomScoped
must refer a custom Map<K, Bean>
implementation in some broader scope which has overridden Map#put()
and/or Map#get()
in order to have more fine grained control over bean creation and/or destroy.
The JSF @NoneScoped
and CDI @Dependent
basically lives as long as a single EL-evaluation on the bean. Imagine a login form with two input fields referring a bean property and a command button referring a bean action, thus with in total three EL expressions, then effectively three instances will be created. One with the username set, one with the password set and one on which the action is invoked. You normally want to use this scope only on beans which should live as long as the bean where it's being injected. So if a @NoneScoped
or @Dependent
is injected in a @SessionScoped
, then it will live as long as the @SessionScoped
bean.
As last, JSF also supports the flash scope. It is backed by a short living cookie which is associated with a data entry in the session scope. Before the redirect, a cookie will be set on the HTTP response with a value which is uniquely associated with the data entry in the session scope. After the redirect, the presence of the flash scope cookie will be checked and the data entry associated with the cookie will be removed from the session scope and be put in the request scope of the redirected request. Finally the cookie will be removed from the HTTP response. This way the redirected request has access to request scoped data which was been prepared in the initial request.
This is actually not available as a managed bean scope, i.e. there's no such thing as @FlashScoped
. The flash scope is only available as a map via ExternalContext#getFlash()
in managed beans and #{flash}
in EL.
-First Move Your Code Files in side the "src" Folder
-Make sure your Main method is declared like the following
public class Main {
public static void main(String []args){
}
}
then:
and it should work
Answer provided by Nicholas Krasnov
SELECT *
FROM BOOKING_SESSION
WHERE TO_CHAR(T_SESSION_DATETIME, 'DD-MM-YYYY') ='20-03-2012';
I like to keep is simple when possible. I needed to group by International, filter on all the columns, display the count for each group and hide the group if no items existed.
Plus I did not want to add a custom filter just for something simple like this.
<tbody>
<tr ng-show="fusa.length > 0"><td colspan="8"><h3>USA ({{fusa.length}})</h3></td></tr>
<tr ng-repeat="t in fusa = (usa = (vm.assignmentLookups | filter: {isInternational: false}) | filter: vm.searchResultText)">
<td>{{$index + 1}}</td>
<td ng-bind-html="vm.highlight(t.title, vm.searchResultText)"></td>
<td ng-bind-html="vm.highlight(t.genericName, vm.searchResultText)"></td>
<td ng-bind-html="vm.highlight(t.mechanismsOfAction, vm.searchResultText)"></td>
<td ng-bind-html="vm.highlight(t.diseaseStateIndication, vm.searchResultText)"></td>
<td ng-bind-html="vm.highlight(t.assignedTo, vm.searchResultText)"></td>
<td ng-bind-html="t.lastPublished | date:'medium'"></td>
</tr>
</tbody>
<tbody>
<tr ng-show="fint.length > 0"><td colspan="8"><h3>International ({{fint.length}})</h3></td></tr>
<tr ng-repeat="t in fint = (int = (vm.assignmentLookups | filter: {isInternational: true}) | filter: vm.searchResultText)">
<td>{{$index + 1}}</td>
<td ng-bind-html="vm.highlight(t.title, vm.searchResultText)"></td>
<td ng-bind-html="vm.highlight(t.genericName, vm.searchResultText)"></td>
<td ng-bind-html="vm.highlight(t.mechanismsOfAction, vm.searchResultText)"></td>
<td ng-bind-html="vm.highlight(t.diseaseStateIndication, vm.searchResultText)"></td>
<td ng-bind-html="vm.highlight(t.assignedTo, vm.searchResultText)"></td>
<td ng-bind-html="t.lastPublished | date:'medium'"></td>
</tr>
</tbody>
You can also do it using phpmyadmin. Just select the table than go to actions. And change the Auto increment below table options. Don't forget to click on start
For what it is worth I came to this page because I had the same problem. I never got anywhere except some IMAP stuff that I don't understand. Then I remembered I had uninstalled privoxy on my ubuntu (because of some weird runtime error that mentioned 127.0.0.1:8118 when I used Daniel Kehoe's Rails template, https://github.com/RailsApps/rails3-application-templates [never discovered what it was]) and I hadn't changed my terminal to the state of no system wide proxy, under network proxy.
I know this may not be on-point but if I wound up here maybe other privoxy users can benefit too.
Official documentation way worked for me:
conda remove --name myenv --all
Or just conda env remove --name myenv
.
To verify that the environment was removed, in your terminal window or an Anaconda Prompt, run:
conda info --envs
The environments list that displays should not show the removed environment.
You anaconda3 enviroments folder might list an empty folder of deleted environment in your anaconda3 installation folder, like:
/opt/anaconda3/envs
you might want to look at the online version of xsv
OS : Win10, Visual Studio 2015
Solution : Go to control panel ---> uninstall program ---MSvisual studio ----> change ---->organize = repair
and repair it. Note that you must connect to internet until repairing finish.
Good luck.
Two's complement is mainly used for the following reasons:
You could use PHP constant:
$array = explode(PHP_EOL, $text);
additional notes:
1. For me this is the easiest and the safest way because it is cross platform compatible (Windows/Linux etc.)
2. It is better to use PHP CONSTANT whenever you can for faster execution
You can use selenium and the webdriver for Firefox.
import selenium.webdriver
import selenium.common
options = selenium.webdriver.firefox.options.Options()
# options.headless = True
with selenium.webdriver.Firefox(options=options) as driver:
driver.get('http://google.com')
time.sleep(2)
root=driver.find_element_by_tag_name('html')
root.screenshot('whole page screenshot.png')
sounds like you're looking for setInterval. It's as easy as this:
function FetchData() {
// do something
}
setInterval(FetchData, 60000);
if you only want to call something once, theres setTimeout.
You need to use the AND function for the multiple conditions:
=IF(AND(A2>=75, A2<=79),0.255,IF(AND(A2>=80, X2<=84),0.327,IF(A2>=85,0.559,0)))
Not sure if Access supports it, but in most engines (including SQL Server
) this is called a correlated subquery and works fine:
SELECT TypesAndBread.Type, TypesAndBread.TBName,
(
SELECT Count(Sandwiches.[SandwichID]) As SandwichCount
FROM Sandwiches
WHERE (Type = 'Sandwich Type' AND Sandwiches.Type = TypesAndBread.TBName)
OR (Type = 'Bread' AND Sandwiches.Bread = TypesAndBread.TBName)
) As SandwichCount
FROM TypesAndBread
This can be made more efficient by indexing Type
and Bread
and distributing the subqueries over the UNION
:
SELECT [Sandwiches Types].[Sandwich Type] As TBName, "Sandwich Type" As Type,
(
SELECT COUNT(*) As SandwichCount
FROM Sandwiches
WHERE Sandwiches.Type = [Sandwiches Types].[Sandwich Type]
)
FROM [Sandwiches Types]
UNION ALL
SELECT [Breads].[Bread] As TBName, "Bread" As Type,
(
SELECT COUNT(*) As SandwichCount
FROM Sandwiches
WHERE Sandwiches.Bread = [Breads].[Bread]
)
FROM [Breads]
If using Spring Boot this works well. Even with Spring Reactive Mongo.
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
and validation config:
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.mongodb.core.mapping.event.ValidatingMongoEventListener;
import org.springframework.validation.beanvalidation.LocalValidatorFactoryBean;
@Configuration
public class MongoValidationConfig {
@Bean
public ValidatingMongoEventListener validatingMongoEventListener() {
return new ValidatingMongoEventListener(validator());
}
@Bean
public LocalValidatorFactoryBean validator() {
return new LocalValidatorFactoryBean();
}
}
If you already have a struct.
import (
"bytes"
"encoding/json"
"io"
"net/http"
"os"
)
// .....
type Student struct {
Name string `json:"name"`
Address string `json:"address"`
}
// .....
body := &Student{
Name: "abc",
Address: "xyz",
}
payloadBuf := new(bytes.Buffer)
json.NewEncoder(payloadBuf).Encode(body)
req, _ := http.NewRequest("POST", url, payloadBuf)
client := &http.Client{}
res, e := client.Do(req)
if e != nil {
return e
}
defer res.Body.Close()
fmt.Println("response Status:", res.Status)
// Print the body to the stdout
io.Copy(os.Stdout, res.Body)
Full gist.
Specifically talks about Java based Android apps being ported to the iPhone using non-Apple hardware.
You might also want to check out MonoTouch (C# rather than Java...but the two are very similar).
for Ubuntu / Debian :
# sudo apt-get install build-essential
For RHEL/CentOS
#rpm -qa | grep gcc
# yum install gcc glibc glibc-common gd gd-devel -y
or
# yum groupinstall "Development tools" -y
More details refer the link
Another pitfall with this is that command substitution — $()
— strips trailing newlines. Probably not always important, but if you really want to preserve exactly what was output, you'll have to use another line and some quoting:
RESULTX="$(./myscript; echo x)"
RESULT="${RESULTX%x}"
This is especially important if you want to handle all possible filenames (to avoid undefined behavior like operating on the wrong file).
A easy way to install pyodbc is by using 'conda'. As conda automatically installs required dependencies including unixodbc.
conda --ugrade all
(optional)
then
conda install pyodbc
it will install following packages:
libgfortran-ng: 7.2.0-hdf63c60_3 defaults
mkl: 2018.0.3-1 defaults
mkl_fft: 1.0.2-py36_0 conda-forge
mkl_random: 1.0.1-py36_0 conda-forge
numpy-base: 1.14.5-py36hdbf6ddf_0 defaults
pyodbc: 4.0.17-py36_0 conda-forge
unixodbc: 2.3.4-1 conda-forge
Gson gson = new Gson();
Type listType = new TypeToken<List<Data>>() {}.getType();
List<Data> cartProductList = gson.fromJson(response.body().get("data"), listType);
Toast.makeText(getContext(), ""+cartProductList.get(0).getCity(), Toast.LENGTH_SHORT).show();
Left Click on wamp go to apache> select http.config Listen [::0]:8080
In simple terms, environment variables are set when you open a new shell session. At any time if you change any of the variable values, the shell has no way of picking that change. that means the changes you made become effective in new shell sessions.
The export
command, on the other hand, provides the ability to update the current shell session about the change you made to the exported variable. You don't have to wait until new shell session to use the value of the variable you changed.
The TableModel
behind the JTable handles all of the data behind the table. In order to add and remove rows from a table, you need to use a DefaultTableModel
To create the table with this model:
JTable table = new JTable(new DefaultTableModel(new Object[]{"Column1", "Column2"}));
To add a row:
DefaultTableModel model = (DefaultTableModel) table.getModel();
model.addRow(new Object[]{"Column 1", "Column 2", "Column 3"});
You can also remove rows with this method.
Full details on the DefaultTableModel can be found here
Here is another way of converting a xml to pandas data frame. For example i have parsing xml from a string but this logic holds good from reading file as well.
import pandas as pd
import xml.etree.ElementTree as ET
xml_str = '<?xml version="1.0" encoding="utf-8"?>\n<response>\n <head>\n <code>\n 200\n </code>\n </head>\n <body>\n <data id="0" name="All Categories" t="2018052600" tg="1" type="category"/>\n <data id="13" name="RealEstate.com.au [H]" t="2018052600" tg="1" type="publication"/>\n </body>\n</response>'
etree = ET.fromstring(xml_str)
dfcols = ['id', 'name']
df = pd.DataFrame(columns=dfcols)
for i in etree.iter(tag='data'):
df = df.append(
pd.Series([i.get('id'), i.get('name')], index=dfcols),
ignore_index=True)
df.head()
To conditionally check the length of the string, use CASE
.
SELECT CASE WHEN LEN(comments) <= 60
THEN comments
ELSE LEFT(comments, 60) + '...'
END As Comments
FROM myView
You can try https://rubygems.org/gems/dates_from_string:
Find date in structure:
text = "get car from repair 2015-02-02 23:00:10"
dates_from_string = DatesFromString.new
dates_from_string.find_date(text)
=> ["2015-02-02 23:00:10"]
const
is for compile-time constants. You could just make it static readonly
, but that would only apply to the METRICS
variable itself (which should typically be Metrics instead, by .NET naming conventions). It wouldn't make the list immutable - so someone could call METRICS.Add("shouldn't be here");
You may want to use a ReadOnlyCollection<T>
to wrap it. For example:
public static readonly IList<String> Metrics = new ReadOnlyCollection<string>
(new List<String> {
SourceFile.LoC, SourceFile.McCabe, SourceFile.NoM,
SourceFile.NoA, SourceFile.FanOut, SourceFile.FanIn,
SourceFile.Par, SourceFile.Ndc, SourceFile.Calls });
ReadOnlyCollection<T>
just wraps a potentially-mutable collection, but as nothing else will have access to the List<T>
afterwards, you can regard the overall collection as immutable.
(The capitalization here is mostly guesswork - using fuller names would make them clearer, IMO.)
Whether you declare it as IList<string>
, IEnumerable<string>
, ReadOnlyCollection<string>
or something else is up to you... if you expect that it should only be treated as a sequence, then IEnumerable<string>
would probably be most appropriate. If the order matters and you want people to be able to access it by index, IList<T>
may be appropriate. If you want to make the immutability apparent, declaring it as ReadOnlyCollection<T>
could be handy - but inflexible.
Rules for padding:
Why Rule 2: Consider the following struct,
If we were to create an array(of 2 structs) of this struct, No padding will be required at the end:
Therefore, size of struct = 8 bytes
Assume we were to create another struct as below:
If we were to create an array of this struct, there are 2 possibilities, of the number of bytes of padding required at the end.
A. If we add 3 bytes at the end and align it for int and not Long:
B. If we add 7 bytes at the end and align it for Long:
The start address of the second array is a multiple of 8(i.e 24). The size of the struct = 24 bytes
Therefore, by aligning the start address of the next array of the struct to a multiple of the largest member(i.e if we were to create an array of this struct, the first address of the second array must start at an address which is a multiple of the largest member of the struct. Here it is, 24(3 * 8)), we can calculate the number of padding bytes required at the end.
I can see, that there already are numerous answers; however, I'd like to shed a bit clearer light on this, because, when I was reading about Daemon Threads, initially, I had a feeling, that I understood it well; however, after I played with it and debugged a bit, I saw a strange (to me) behaviour.
I was taught, that if I want the thread to die right after the main thread orderly finishes its execution, I should set it as *Diamond
.
What I tried was, that I created two threads from the Main Thread
, and then I only set one of those as Diamond
. What happened was, that after the orderly finishing the execution of the Main Thread
, none of those newly created threads exited. But I expected, that Daemon
thread should've been exited. I surfed over many blogs and articles, but the best and clearest definition I found so far comes from the Java Concurrency In Practice book, by Brian Goetz and few others.
It very clearly says, that:
Sometimes you want to create a thread that performs some helper function but you don’t want the existence of this thread to prevent the JVM from shutting down. This is what daemon threads are for. Threads are divided into two types: normal threads and daemon threads. When the JVM starts up, all the threads it creates (such as garbage collector and other housekeeping threads) are daemon threads, except the main thread. When a new thread is created, it inherits the daemon status of the thread that created it, so by default any threads created by the main thread are also normal threads. Normal threads and daemon threads differ only in what happens when they exit. When a thread exits, the JVM performs an inventory of running threads, and if the only threads that are left are daemon threads, it initiates an orderly shutdown. When the JVM halts, any remaining daemon threads are abandoned— finally blocks are not executed, stacks are not unwound—the JVM just exits. Daemon threads should be used sparingly—few processing activities can be safely abandoned at any time with no cleanup. In particular, it is dangerous to use daemon threads for tasks that might perform any sort of I/O. Daemon threads are best saved for “housekeeping” tasks, such as a background thread that periodically removes expired entries from an in-memory cache.
To test if the POST variable has an element called 'userID' you would be better off using array_key_exists .. which actually tests for the existence of the array key not whether its value has been set .. a subtle and probably only semantic difference, but it does improve readability.
and right now your $uid is being set to a boolean value depending whether $__POST['userID'] is set or not ... If I recall from memory you might want to try ...
$uid = (array_key_exists('userID', $_POST)?$_POST['userID']:'guest';
Then you can use an identifiable 'guest' user and render your code that much more readable :)
Another point re isset() even though it is unlikely to apply in this scenario, it's worth remembering if you don't want to get caught out later ... an array element can be legitimately set to NULL ... i.e. it can exist, but be as yet unpopulated, and this could be a valid, acceptable, and testable condition. but :
a = array('one'=>1, 'two'=>null, 'three'=>3);
isset(a['one']) == true
isset(a['two']) == false
array_key_exists(a['one']) == true
array_key_exists(a['two']) == true
Bw sure you know which function you want to use for which purpose.
There is a sorting algorithm in the standard library, in the header <algorithm>
. It sorts inplace, so if you do the following, your original word will become sorted.
std::sort(word.begin(), word.end());
If you don't want to lose the original, make a copy first.
std::string sortedWord = word;
std::sort(sortedWord.begin(), sortedWord.end());
Try BinaryReader:
/// <summary>
/// Convert the Binary AnyFile to Byte[] format
/// </summary>
/// <param name="image"></param>
/// <returns></returns>
public static byte[] ConvertANYFileToBytes(HttpPostedFileBase image)
{
byte[] imageBytes = null;
BinaryReader reader = new BinaryReader(image.InputStream);
imageBytes = reader.ReadBytes((int)image.ContentLength);
return imageBytes;
}
Your problem has nothing to do with encodings, it's a simple matter of understanding basic C++. You are returning a pointer to a local variable from your function, which will have gone out of scope by the time anyone can use it, thus creating undefined behaviour (i.e. a programming error).
Follow this Golden Rule: "If you are using naked char pointers, you're Doing It Wrong. (Except for when you aren't.)"
I've previously posted some code to do the conversion and communicating the input and output in C++ std::string
and std::wstring
objects.
df.filter($"state" like "T%%")
for pattern matching
df.filter($"state" === "TX")
or df.filter("state = 'TX'")
for equality
One reason to have both is so that authentication can be done by the database server, but authorization can be scoped to the database. That way, if you move your database to another server, you can always remap the user-login relationship on the database server, but your database doesn't have to change.
I use the following function for delaying repeated actions, it will work for your case:
var delay = (function(){
var timer = 0;
return function(callback, ms){
clearTimeout (timer);
timer = setTimeout(callback, ms);
};
})();
Usage:
$(window).resize(function() {
delay(function(){
alert('Resize...');
//...
}, 500);
});
The callback function passed to it, will execute only when the last call to delay has been made after the specified amount of time, otherwise a timer will be reset, I find this useful for other purposes like detecting when the user stopped typing, etc...
In CurrentGame
component you need to change initial state because you are trying use loop for participants
but this property is undefined
that's why you get error.,
getInitialState: function(){
return {
data: {
participants: []
}
};
},
also, as player
in .map
is Object
you should get properties from it
this.props.data.participants.map(function(player) {
return <li key={player.championId}>{player.summonerName}</li>
// -------------------^^^^^^^^^^^---------^^^^^^^^^^^^^^
})
If you look into CREATE PROCEDURE Syntax for latest MySQL version you'll see that procedure parameter can only contain IN/OUT/INOUT specifier, parameter name and type.
So, default values are still unavailable in latest MySQL version.
For a horizontal progress bar, you first need to define your progress bar and link it with your XML file like this, in the onCreate
:
final TextView txtview = (TextView)findViewById(R.id.tV1);
final ProgressBar pbar = (ProgressBar) findViewById(R.id.pB1);
Then, you may use onProgressChanged Method in your WebChromeClient:
MyView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress) {
if(progress < 100 && pbar.getVisibility() == ProgressBar.GONE){
pbar.setVisibility(ProgressBar.VISIBLE);
txtview.setVisibility(View.VISIBLE);
}
pbar.setProgress(progress);
if(progress == 100) {
pbar.setVisibility(ProgressBar.GONE);
txtview.setVisibility(View.GONE);
}
}
});
After that, in your layout you have something like this
<TextView android:text="Loading, . . ."
android:textAppearance="?android:attr/textAppearanceSmall"
android:id="@+id/tV1" android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:textColor="#000000"></TextView>
<ProgressBar android:id="@+id/pB1"
style="?android:attr/progressBarStyleHorizontal" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:layout_centerVertical="true"
android:padding="2dip">
</ProgressBar>
This is how I did it in my app.
Computer (right-click) -> manage -> Service & Application -> service -> Enable Application experience
Worked For me!
I don't believe a switch/case is any faster than a series of if/elseif's. They do the same thing, but if/elseif's you can check multiple variables. You cannot use a switch/case on more than one value.
var theString = "TEST";
char[] myChar = theString.ToCharArray();
I tested this in the C# interactive window of Visual Studio 2019 and got:
char[4] { 'T', 'E', 'S', 'T' }
find . -print0|while read -d $'\0' file; do echo "$file"; done
To change dir
foo:
$(MAKE) -C mydir
multi:
$(MAKE) -C / -C my-custom-dir ## Equivalent to /my-custom-dir
You can kill a thread by installing trace into the thread that will exit the thread. See attached link for one possible implementation.