Series is a one-dimensional labeled array capable of holding any data type (integers, strings, floating point numbers, Python objects, etc.). The axis labels are collectively referred to as the index. The basic method to create a Series is to call:
s = pd.Series(data, index=index)
DataFrame is a 2-dimensional labeled data structure with columns of potentially different types. You can think of it like a spreadsheet or SQL table, or a dict of Series objects.
d = {'one' : pd.Series([1., 2., 3.], index=['a', 'b', 'c']),
two' : pd.Series([1., 2., 3., 4.], index=['a', 'b', 'c', 'd'])}
df = pd.DataFrame(d)
Basically, ==
compares if two objects have the same reference on the heap, so unless two references are linked to the same object, this comparison will be false.
equals()
is a method inherited from Object
class. This method by default compares if two objects have the same referece. It means:
object1.equals(object2)
<=> object1 == object2
However, if you want to establish equality between two objects of the same class you should override this method. It is also very important to override the method hashCode()
if you have overriden equals()
.
Implement hashCode()
when establishing equality is part of the Java Object Contract. If you are working with collections, and you haven't implemented hashCode()
, Strange Bad Things could happen:
HashMap<Cat, String> cats = new HashMap<>();
Cat cat = new Cat("molly");
cats.put(cat, "This is a cool cat");
System.out.println(cats.get(new Cat("molly"));
null
will be printed after executing the previous code if you haven't implemented hashCode()
.
In my humble opinion the best way is to just add a full day in milliseconds, depending on how you factor your code it can mess up if your on the last day of the month.
for example Feb 28 or march 31.
Here is an example of how i would do it:
var current = new Date(); //'Mar 11 2015' current.getTime() = 1426060964567
var followingDay = new Date(current.getTime() + 86400000); // + 1 day in ms
followingDay.toLocaleDateString();
imo this insures accuracy
here is another example i Do not like that can work for you but not as clean that dose the above
var today = new Date('12/31/2015');
var tomorrow = new Date(today);
tomorrow.setDate(today.getDate()+1);
tomorrow.toLocaleDateString();
imho this === 'POOP'
So some of you have had gripes about my millisecond approach because of day light savings time. So Im going to bash this out. First, Some countries and states do not have Day light savings time. Second Adding exactly 24 hours is a full day. If the date number dose not change once a year but then gets fixed 6 months later i don't see a problem there. But for the purpose of being definite and having to deal with allot the evil Date() i have thought this through and now thoroughly hate Date. So this is my new Approach
var dd = new Date(); // or any date and time you care about
var dateArray = dd.toISOString().split('T')[0].split('-').concat( dd.toISOString().split('T')[1].split(':') );
// ["2016", "07", "04", "00", "17", "58.849Z"] at Z
Now for the fun part!
var date = {
day: dateArray[2],
month: dateArray[1],
year: dateArray[0],
hour: dateArray[3],
minutes: dateArray[4],
seconds:dateArray[5].split('.')[0],
milliseconds: dateArray[5].split('.')[1].replace('Z','')
}
now we have our Official Valid international Date Object clearly written out at Zulu meridian. Now to change the date
dd.setDate(dd.getDate()+1); // this gives you one full calendar date forward
tomorrow.setDate(dd.getTime() + 86400000);// this gives your 24 hours into the future. do what you want with it.
hash = {"apple" => "fruit", "carrot" => "vegetable"}
array = hash.keys #=> ["apple", "carrot"]
it's that simple
Both .done()
and .success()
are callback functions and they essentially function the same way.
Here's the documentation. The difference is that .success()
is deprecated as of jQuery 1.8. You should use .done()
instead.
In case you don't want to click the link:
Deprecation Notice
The
jqXHR.success()
,jqXHR.error()
, andjqXHR.complete()
callback methods introduced in jQuery 1.5 are deprecated as of jQuery 1.8. To prepare your code for their eventual removal, usejqXHR.done()
,jqXHR.fail()
, andjqXHR.always()
instead.
I wonder if a Regex-based replacement (possibly compiled) is faster. Would have to test that Someone has found this to be ~5 times slower.
Other than that, you should initialize the StringBuilder with an expected length, so that the intermediate string doesn't have to be copied around while it grows.
A good number is the length of the original string, or something slightly lower (depending on the nature of the functions inputs).
Finally, you can use a lookup table (in the range 0..127) to find out whether a character is to be accepted.
You can select every column from that sub-query by aliasing it and adding the alias before the *
:
SELECT t.*, a+b AS total_sum
FROM
(
SELECT SUM(column1) AS a, SUM(column2) AS b
FROM table
) t
Use:
#include <windows.h>
Sleep(sometime_in_millisecs); // Note uppercase S
And here's a small example that compiles with MinGW and does what it says on the tin:
#include <windows.h>
#include <stdio.h>
int main() {
printf( "starting to sleep...\n" );
Sleep(3000); // Sleep three seconds
printf("sleep ended\n");
}
I link all Qt stuff statically to the generic Linux builds of my open source projects. It makes life a bit easier. You just need to build static versions of Qt libraries first. Of course this cannot be applied to closed source software due to licensing issues. The deployment of Qt5 apps on Linux is currently a bit problematic, because Ubuntu 12.04, for example, doesn't have Qt5 libraries in the package repositories.
Maybe grid on
will suffice.
Could it be as simple as enclosing your asset in " " and whatever needs quotes on the inside with ' '?
<link rel="stylesheet" media="screen" href="@routes.Assets.at("stylesheets/main.css")">
becomes
<link rel="stylesheet" media="screen" href="@routes.Assets.at('stylesheets/main.css')">
That could be causing some problems with parsing
You can use the Array.prototype.some() in the following way (as mentioned in the other answers):
https://jsfiddle.net/h1d69exj/2/
function findIndexInData(data, property, value) {
var result = -1;
data.some(function (item, i) {
if (item[property] === value) {
result = i;
return true;
}
});
return result;
}
var data = [{prop1:"abc",prop2:"qwe"},{prop1:"bnmb",prop2:"yutu"},{prop1:"zxvz",prop2:"qwrq"}]
alert(findIndexInData(data, 'prop2', "yutu")); // shows index of 1
ResponseEntity
is meant to represent the entire HTTP response. You can control anything that goes into it: status code, headers, and body.
@ResponseBody
is a marker for the HTTP response body and @ResponseStatus
declares the status code of the HTTP response.
@ResponseStatus
isn't very flexible. It marks the entire method so you have to be sure that your handler method will always behave the same way. And you still can't set the headers. You'd need the HttpServletResponse
or a HttpHeaders
parameter.
Basically, ResponseEntity
lets you do more.
You are using a local path. Is that really what you want? If it is, you need to use the file:///
prefix:
file:///H:/media/css/static/img/sprites/buttons-v3-10.png
obviously, this will work only on your local computer.
Also, in many modern browsers, this works only if the page itself is also on a local file path. Addressing local files from remote (http://
, https://
) pages has been widely disabled due to security reasons.
Here is my simplistic log4j2.xml
that prints to console and writes to a daily rolling file:
// java
private static final Logger LOGGER = LogManager.getLogger(MyClass.class);
// log4j2.xml
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
<Properties>
<Property name="logPath">target/cucumber-logs</Property>
<Property name="rollingFileName">cucumber</Property>
</Properties>
<Appenders>
<Console name="console" target="SYSTEM_OUT">
<PatternLayout pattern="[%highlight{%-5level}] %d{DEFAULT} %c{1}.%M() - %msg%n%throwable{short.lineNumber}" />
</Console>
<RollingFile name="rollingFile" fileName="${logPath}/${rollingFileName}.log" filePattern="${logPath}/${rollingFileName}_%d{yyyy-MM-dd}.log">
<PatternLayout pattern="[%highlight{%-5level}] %d{DEFAULT} %c{1}.%M() - %msg%n%throwable{short.lineNumber}" />
<Policies>
<!-- Causes a rollover if the log file is older than the current JVM's start time -->
<OnStartupTriggeringPolicy />
<!-- Causes a rollover once the date/time pattern no longer applies to the active file -->
<TimeBasedTriggeringPolicy interval="1" modulate="true" />
</Policies>
</RollingFile>
</Appenders>
<Loggers>
<Root level="DEBUG" additivity="false">
<AppenderRef ref="console" />
<AppenderRef ref="rollingFile" />
</Root>
</Loggers>
</Configuration>
TimeBasedTriggeringPolicy
interval (integer) - How often a rollover should occur based on the most specific time unit in the date pattern. For example, with a date pattern with hours as the most specific item and and increment of 4 rollovers would occur every 4 hours. The default value is 1.
modulate (boolean) - Indicates whether the interval should be adjusted to cause the next rollover to occur on the interval boundary. For example, if the item is hours, the current hour is 3 am and the interval is 4 then the first rollover will occur at 4 am and then next ones will occur at 8 am, noon, 4pm, etc.
Source: https://logging.apache.org/log4j/2.x/manual/appenders.html
Output:
[INFO ] 2018-07-21 12:03:47,412 ScenarioHook.beforeScenario() - Browser=CHROME32_NOHEAD
[INFO ] 2018-07-21 12:03:48,623 ScenarioHook.beforeScenario() - Screen Resolution (WxH)=1366x768
[DEBUG] 2018-07-21 12:03:52,125 HomePageNavigationSteps.I_Am_At_The_Home_Page() - Base URL=http://simplydo.com/projector/
[DEBUG] 2018-07-21 12:03:52,700 NetIncomeProjectorSteps.I_Enter_My_Start_Balance() - Start Balance=348000
A new log file will be created daily with previous day automatically renamed to:
cucumber_yyyy-MM-dd.log
In a Maven project, you would put the log4j2.xml
in src/main/resources
or src/test/resources
.
In android NDK go to android-ndk-r9b>/sources/cxx-stl/gnu-libstdc++/4.X/include in linux machines
I've found solution from the below link http://osdir.com/ml/android-ndk/2011-09/msg00336.html
If you just use round then the two end numbers (1 and 9) will occur less frequently, to get an even distribution of integers between 1 and 9 then:
SELECT MOD(Round(DBMS_RANDOM.Value(1, 99)), 9) + 1 FROM DUAL
I know this question is old now, but after doing a ton of research on various solutions to this problem, I think I may have come up with a better solution.
UPDATE 1: Since posting this answer, I have added all of this code to a simple service that I have posted to GitHub. The repo is located here. Feel free to check it out for more info.
UPDATE 2: This answer is great if all you need is a lightweight solution for pulling in stylesheets for your routes. If you want a more complete solution for managing on-demand stylesheets throughout your application, you may want to checkout Door3's AngularCSS project. It provides much more fine-grained functionality.
In case anyone in the future is interested, here's what I came up with:
1. Create a custom directive for the <head>
element:
app.directive('head', ['$rootScope','$compile',
function($rootScope, $compile){
return {
restrict: 'E',
link: function(scope, elem){
var html = '<link rel="stylesheet" ng-repeat="(routeCtrl, cssUrl) in routeStyles" ng-href="{{cssUrl}}" />';
elem.append($compile(html)(scope));
scope.routeStyles = {};
$rootScope.$on('$routeChangeStart', function (e, next, current) {
if(current && current.$$route && current.$$route.css){
if(!angular.isArray(current.$$route.css)){
current.$$route.css = [current.$$route.css];
}
angular.forEach(current.$$route.css, function(sheet){
delete scope.routeStyles[sheet];
});
}
if(next && next.$$route && next.$$route.css){
if(!angular.isArray(next.$$route.css)){
next.$$route.css = [next.$$route.css];
}
angular.forEach(next.$$route.css, function(sheet){
scope.routeStyles[sheet] = sheet;
});
}
});
}
};
}
]);
This directive does the following things:
$compile
) an html string that creates a set of <link />
tags for every item in the scope.routeStyles
object using ng-repeat
and ng-href
.<link />
elements to the <head>
tag.$rootScope
to listen for '$routeChangeStart'
events. For every '$routeChangeStart'
event, it grabs the "current" $$route
object (the route that the user is about to leave) and removes its partial-specific css file(s) from the <head>
tag. It also grabs the "next" $$route
object (the route that the user is about to go to) and adds any of its partial-specific css file(s) to the <head>
tag.ng-repeat
part of the compiled <link />
tag handles all of the adding and removing of the page-specific stylesheets based on what gets added to or removed from the scope.routeStyles
object.Note: this requires that your ng-app
attribute is on the <html>
element, not on <body>
or anything inside of <html>
.
2. Specify which stylesheets belong to which routes using the $routeProvider
:
app.config(['$routeProvider', function($routeProvider){
$routeProvider
.when('/some/route/1', {
templateUrl: 'partials/partial1.html',
controller: 'Partial1Ctrl',
css: 'css/partial1.css'
})
.when('/some/route/2', {
templateUrl: 'partials/partial2.html',
controller: 'Partial2Ctrl'
})
.when('/some/route/3', {
templateUrl: 'partials/partial3.html',
controller: 'Partial3Ctrl',
css: ['css/partial3_1.css','css/partial3_2.css']
})
}]);
This config adds a custom css
property to the object that is used to setup each page's route. That object gets passed to each '$routeChangeStart'
event as .$$route
. So when listening to the '$routeChangeStart'
event, we can grab the css
property that we specified and append/remove those <link />
tags as needed. Note that specifying a css
property on the route is completely optional, as it was omitted from the '/some/route/2'
example. If the route doesn't have a css
property, the <head>
directive will simply do nothing for that route. Note also that you can even have multiple page-specific stylesheets per route, as in the '/some/route/3'
example above, where the css
property is an array of relative paths to the stylesheets needed for that route.
3. You're done Those two things setup everything that was needed and it does it, in my opinion, with the cleanest code possible.
Hope that helps someone else who might be struggling with this issue as much as I was.
You can concatenate strings by using the sprintf() function. In your case, for example:
char file[80];
sprintf(file,"%s%s",name,extension);
And you'll end having the concatenated string in "file".
itemdescription
is shorter than 38 chars. Which is why the StringOutOfBoundsException
is being thrown.
Checking .length() > 0
simply makes sure the String
has some not-null value, what you need to do is check that the length is long enough. You could try:
if(itemdescription.length() > 38)
...
you have to float
your image container as follows:
HTML
<div id="container">
<div id="floated">...some other random text</div>
...
some random text
...
</div>
CSS
#container{
width: 400px;
background: yellow;
}
#floated{
float: left;
width: 150px;
background: red;
}
FIDDLE
Because strings are (immutable) sequences they can be unpacked similar to lists:
with open(filename, 'rU') as fd:
multiLine = fd.read()
*lst, = multiLine
When running map(lambda x: x, multiLine) this is clearly more efficient, but in fact it returns a map object instead of a list.
with open(filename, 'rU') as fd:
multiLine = fd.read()
list(map(lambda x: x, multiLine))
Turning the map object into a list will take longer than the unpacking method.
To my knowledge there is no cross-browser compatible way to make a circle with CSS & HTML only.
For the square I guess you could make a div with a border and a z-index higher than what you are putting it over. I don't understand why you would need to do this, when you could just put a border on the image or "something" itself.
If anyone else knows how to make a circle that is cross browser compatible with CSS & HTML only, I would love to hear about it!
@Caspar Kleijne border-radius does not work in IE8 or below, not sure about 9.
Recently I had to do something similar and I resolved it with the code below. Hope it helps!
Sub ColorCode()
Dim i As Integer
Dim j As Integer
i = 2
j = 1
Do While ActiveSheet.Cells(i, 1) <> ""
If Cells(i, 5).Value = "RED" Then
ActiveSheet.ChartObjects("YourChartName").Chart.FullSeriesCollection(1).Points(j).MarkerForegroundColor = RGB(255, 0, 0)
Else
If Cells(i, 5).Value = "GREEN" Then
ActiveSheet.ChartObjects("YourChartName").Chart.FullSeriesCollection(1).Points(j).MarkerForegroundColor = RGB(0, 255, 0)
Else
If Cells(i, 5).Value = "GREY" Then
ActiveSheet.ChartObjects("YourChartName").Chart.FullSeriesCollection(1).Points(j).MarkerForegroundColor = RGB(192, 192, 192)
Else
If Cells(i, 5).Value = "YELLOW" Then
ActiveSheet.ChartObjects("YourChartName").Chart.FullSeriesCollection(1).Points(j).MarkerForegroundColor = RGB(255, 255, 0)
End If
End If
End If
End If
i = i + 1
j = j + 1
Loop
End Sub
If you have MySQL as part of a Docker image (say on port 6606) and an Ubuntu install (on port 3306) specifying the port is not enough:
mysql -u root -p -P 6606
will throw:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
as it's trying to connect to localhost by default, specifying your local IP fixes the issue:
mysql -u root -p -P 6606 -h 127.0.0.1
Before you call setContentView()
, call setTheme(android.R.style...)
and just replace the ... with the theme that you want(Theme, Theme_NoTitleBar, etc.).
Or if your theme is a custom theme, then replace the entire thing, so you get setTheme(yourThemesResouceId)
Same error can raise by mixing: tabs + spaces.
with open('/foo', 'w') as f:
(spaces OR tab) print f <-- success
(spaces AND tab) print f <-- fail
Just add the column names, yes you can use Null instead but is is a very bad idea to not use column names in any insert, ever.
I have a similar request from a client who wants to have the header, page numbers, and html footer removed. In this case, the client is presenting an HTML page that can double as a formal certificate. The added URL, page, and, header, are irrelevant and lead to a less-than-pleasing final product. In some ways, it just looks cheap.
Media=Print has not been able to disable these browser defaults. The only workaround is to tell the user to click the "Gear" button and toggle those items on/off. Seriously, I had no idea I could do that for 20 years (and we think the typical user will have a clue to click the toggle button?).
If CSS supports Media=Print, it should support the ability to control the entire end-user print experience. I appreciate that the browsers provide the added fields, but, why not allow CSS to control the overall print experience-if that is what's desired. A 90% solution could be 100% with three more fields! A simple:
#BrowserPrintDefaults{display:none}
would suffice.
Again, it's not a matter whether or not the end-user wants to print it out or not (maybe your client is very private and doesn't want printed URLs floating around. Or maybe a executive team uses a private collaboration sites?). Glad to defend the end-user, but if somebody is seeking an answer, don't respond saying it's the right of the end-user to show or hide. Sometimes it's the right of the client paying the bills.
There is also a more convenient (for some) svnversion
command.
Output might be a single revision number or something like this (from -h):
4123:4168 mixed revision working copy
4168M modified working copy
4123S switched working copy
4123:4168MS mixed revision, modified, switched working copy
I use this python code snippet to extract revision information:
import re
import subprocess
p = subprocess.Popen(["svnversion"], stdout = subprocess.PIPE,
stderr = subprocess.PIPE)
p.wait()
m = re.match(r'(|\d+M?S?):?(\d+)(M?)S?', p.stdout.read())
rev = int(m.group(2))
if m.group(3) == 'M':
rev += 1
You can use @ and "".
string sourse = @"{
""items"":[
{
""itemId"":0,
""name"":""item0""
},
{
""itemId"":1,
""name"":""item1""
}
]
}";
For now no jquery or php needed. Use just "required" HTML5 input attrbute like here
<form>
<p>
<input class="form-control" type="text" name="email" />
<input type="submit" value="ok" class="btn btn-success" name="submit" />
<input type="hidden" name="action" value="0" />
</p>
<p><input type="checkbox" required name="terms">I have read and accept <a href="#">SOMETHING Terms and Conditions</a></p>
</form>
This will validate and prevent any submit before checkbox is opt in. Language independent solution because its generated by users web browser.
My simple answer was to turn the click bind into a function and call that from the onclick of the element - worked a treat! whereas none of the above did
Changing from https:// to http:// worked for me
The clearest answer. Does “X& const x” make any sense?
No, it is nonsense
To find out what the above declaration means, read it right-to-left: “x is a const reference to a X”. But that is redundant — references are always const, in the sense that you can never reseat a reference to make it refer to a different object. Never. With or without the const.
In other words, “X& const x” is functionally equivalent to “X& x”. Since you’re gaining nothing by adding the const after the &, you shouldn’t add it: it will confuse people — the const will make some people think that the X is const, as if you had said “const X& x”.
Your loop might be endless. If it is not, you could extend the maximum execution time like this:
ini_set('max_execution_time', '300'); //300 seconds = 5 minutes
and
set_time_limit(300);
can be used to temporarily extend the time limit.
Remove pod name from Podfile
then
Open Terminal, set project folder path and
Run pod update
command.
NOTE: pod update
will update all the libraries to the latest version and will also remove those libraries whose name have been removed from podfile.
I tried this way and worked for me.
conda install -c anaconda graphviz
pip install graphviz
An other simply way:
var fn = function () {}
if (fn.constructor === Function) {
// true
} else {
// false
}
It is, in principle, impossible to determine the encoding of a text file, in the general case. So no, there is no standard Python library to do that for you.
If you have more specific knowledge about the text file (e.g. that it is XML), there might be library functions.
Try this:
mynewlist = [s for s in mylist if s.isdigit()]
From the docs:
str.isdigit()
Return true if all characters in the string are digits and there is at least one character, false otherwise.
For 8-bit strings, this method is locale-dependent.
As noted in the comments, isdigit()
returning True
does not necessarily indicate that the string can be parsed as an int via the int()
function, and it returning False
does not necessarily indicate that it cannot be. Nevertheless, the approach above should work in your case.
If you don't have any other indexes or sorted information for your objects, then you will have to iterate until such an object is found:
next(obj for obj in objs if obj.val == 5)
This is however faster than a complete list comprehension. Compare these two:
[i for i in xrange(100000) if i == 1000][0]
next(i for i in xrange(100000) if i == 1000)
The first one needs 5.75ms, the second one 58.3µs (100 times faster because the loop 100 times shorter).
This is precisely what position: fixed
was designed for:
#footer {
position: fixed;
bottom: 0;
width: 100%;
}
Here's the fiddle: http://jsfiddle.net/uw8f9/
Set the main div
CSS to somthing like:
<style>
.wrapper{
display:flex;
flex-direction: column;
}
</style>
<div id="wrapper">
<div id="inner1">This is inner div 1</div>
<div id="inner2">This is inner div 2</div>
</div>
For more flexbox CSS refer: https://css-tricks.com/snippets/css/a-guide-to-flexbox/
Working for me on IE:
<script type="text/javascript">
var WinNetwork = new ActiveXObject("WScript.Network");
document.write(WinNetwork.UserName);
</script>
...but ActiveX controls needs to be on in security settings.
To get a list of the words that appear more than once together with how often they occur, use a combination of GROUP BY and HAVING:
SELECT word, COUNT(*) AS cnt
FROM words
GROUP BY word
HAVING cnt > 1
To find the number of words in the above result set, use that as a subquery and count the rows in an outer query:
SELECT COUNT(*)
FROM
(
SELECT NULL
FROM words
GROUP BY word
HAVING COUNT(*) > 1
) T1
Also, if you have a variable,
CabRes::where('m_Id', 46)
->where('t_Id', 2)
->where(function($q) use ($variable){
$q->where('Cab', 2)
->orWhere('Cab', $variable);
})
->get();
The Best Way I Can Use My Project.Use hasOwnProperty
in Tricky Way!.
var arr = []; (or) arr = new Array();
var obj = {}; (or) arr = new Object();
arr.constructor.prototype.hasOwnProperty('push') //true (This is an Array)
obj.constructor.prototype.hasOwnProperty('push') // false (This is an Object)
You could also do something like this :
const str = "hi, there"_x000D_
_x000D_
const res = str.includes("hello") || str.includes("hi") || str.includes('howdy');_x000D_
_x000D_
console.log(res);
_x000D_
Whenever one of your includes return true, value will be true, otherwise, it's going to be false. This works perfectly fine with ES6.
Check this post, helped me a lot. In short, the best option for me was:
import random
import string
# defining function for random
# string id with parameter
def ran_gen(size, chars=string.ascii_uppercase + string.digits):
return ''.join(random.choice(chars) for x in range(size))
# function call for random string
# generation with size 8 and string
print (ran_gen(8, "AEIOSUMA23"))
Because I needed just 4-6 random characters instead of bulky GUID.
One of the differences is in short
UDP : Send message and dont look back if it reached destination, Connectionless protocol
TCP : Send message and guarantee to reach destination, Connection-oriented protocol
Just Use this oneliner:
divisions.Items.FindByText("Some Text").Selected = true;
divisions.Items.FindByValue("some value").Selected = true;
where divisions is a dropdownlist control.
Hope it helps someone.
Also, if, like me, you add controls directly in XAML (not using the editor), you might get frustrated that it won't stretch to the available height, even after setting those two properties.
To make the TextBox stretch, set the Height="Auto"
.
UPDATE:
In retrospect, I think this must have been necessary thanks to a default style for TextBoxes specifying the height to some standard for the application somewhere in the App resources. It may be worthwhile checking this if this helped you.
Dir has also shorter syntax to get an array of all files from directory:
Dir['dir/to/files/*'].each do |fname|
# do something with fname
end
This worked for me:
const Routes = createStackNavigator({
Intro: {
screen: Intro,
navigationOptions: {
header: null,
}
}
},
{
initialRouteName: 'Intro',
}
);
There you go:
function sortArrayByArray(array $array, array $orderArray) {
$ordered = array();
foreach ($orderArray as $key) {
if (array_key_exists($key, $array)) {
$ordered[$key] = $array[$key];
unset($array[$key]);
}
}
return $ordered + $array;
}
Use the pandas.DataFrame.rename funtion. Check this link for description.
data.rename(columns = {'gdp': 'log(gdp)'}, inplace = True)
If you intend to rename multiple columns then
data.rename(columns = {'gdp': 'log(gdp)', 'cap': 'log(cap)', ..}, inplace = True)
You can Disallow closing of #signUp (This should be the id of the modal) modal when clicking outside of modal.
As well as on ESC button.
jQuery('#signUp').on('shown.bs.modal', function() {
jQuery(this).data('bs.modal').options.backdrop = 'static';// For outside click of modal.
jQuery(this).data('bs.modal').options.keyboard = false;// For ESC button.
})
~ $ hciconfig noauth
This should do the trick (I'm using bluez 5.23 and there's no more simple-egent and blue-utils). However, I'm trying to look for a way to make changes hciconfig permanent because after power out and then power on, authentication is needed again. So far, the changes in hciconfig still stays the same when you reboot it. it reverts back only when power out. If anybody has found a way to make hciconfig permanent, do let me know!
In the command line type service apache2 status
then hit enter. The result should say:
Apache2 is running (pid xxxx)
Using a supposed name property as the map key:
for (Product p: productList) { s.put(p.getName(), p); }
I understand that this is fairly old question and has some pretty good answers. But, here is my two cents for the sake of completeness.
As per the official documentation, there are four ways, you can allow complete access for robots to access your site.
Specify a global matcher with a disallow segment as mentioned by @unor. So your /robots.txt
looks like this.
User-agent: *
Disallow:
Create a /robots.txt
file with no content in it. Which will default to allow all for all type of Bots
.
Do not create a /robots.txt
altogether. Which should yield the exact same results as the above two.
From the robots documentation for meta tags, You can use the following meta tag on all your pages on your site to let the Bots
know that these pages are not supposed to be indexed.
<META NAME="ROBOTS" CONTENT="NOINDEX">
In order for this to be applied to your entire site, You will have to add this meta tag for all of your pages. And this tag should strictly be placed under your HEAD
tag of the page. More about this meta tag here.
I know this has been answered for quite some time but not solve my problem. I am using DictReader and StringIO for my csv reading due to some other complications. I was able to solve problem more simply by replacing delimiters explicitly:
with urllib.request.urlopen(q) as response:
raw_data = response.read()
encoding = response.info().get_content_charset('utf8')
data = raw_data.decode(encoding)
if '\r\n' not in data:
# proably a windows delimited thing...try to update it
data = data.replace('\r', '\r\n')
Might not be reasonable for enormous CSV files, but worked well for my use case.
With a recent nightly, you can do this:
let my_int = from_str::<int>(&*my_string);
What's happening here is that String
can now be dereferenced into a str
. However, the function wants an &str
, so we have to borrow again. For reference, I believe this particular pattern (&*
) is called "cross-borrowing".
For any future googlers ending up here like me, I used @tatu Ulmanen's concept and just turned it into an array of objects. This simple function takes a string of pasted excel (or Google sheet) data (preferably from a textarea
) and turns it into an array of objects. It uses the first row for column/property names.
function excelToObjects(stringData){
var objects = [];
//split into rows
var rows = stringData.split('\n');
//Make columns
columns = rows[0].split('\t');
//Note how we start at rowNr = 1, because 0 is the column row
for (var rowNr = 1; rowNr < rows.length; rowNr++) {
var o = {};
var data = rows[rowNr].split('\t');
//Loop through all the data
for (var cellNr = 0; cellNr < data.length; cellNr++) {
o[columns[cellNr]] = data[cellNr];
}
objects.push(o);
}
return objects;
}
Hopefully it helps someone in the future.
Because the question is not always supposed to be understood as the fastest technical way - I always suggest the most straightforward fastest way to understand/write: a list comprehension, one-liner
[i for i in list_from_which_to_search if i in list_to_search_in]
I had a list_to_search_in
with all the items, and wanted to return the indexes of the items in the list_from_which_to_search
.
This returns the indexes in a nice list.
There are other ways to check this problem - however list comprehensions are quick enough, adding to the fact of writing it quick enough, to solve a problem.
You could try letting the stream throw an exception on failure:
std::ifstream f;
//prepare f to throw if failbit gets set
std::ios_base::iostate exceptionMask = f.exceptions() | std::ios::failbit;
f.exceptions(exceptionMask);
try {
f.open(fileName);
}
catch (std::ios_base::failure& e) {
std::cerr << e.what() << '\n';
}
e.what()
, however, does not seem to be very helpful:
strerror(errno)
gives "No such file or directory."If e.what()
does not work for you (I don't know what it will tell you about the error, since that's not standardized), try using std::make_error_condition
(C++11 only):
catch (std::ios_base::failure& e) {
if ( e.code() == std::make_error_condition(std::io_errc::stream) )
std::cerr << "Stream error!\n";
else
std::cerr << "Unknown failure opening file.\n";
}
@angular/material
has changed its folder structure. Now you need to use all the modules from their respective folders instead of just material
folder
For example:
import { MatDialogModule } from "@angular/material";
has now changed to
import { MatDialogModule } from "@angular/material/dialog";
You can check the following to find the correct path for your module
https://material.angular.io/components/categories
Just navigate to the API tab of required module and find the correct path like this
Something like the following will loop through column A in the Control sheet and turn the values in the cells into Hyperlinks. Not something I've had to do before so please excuse bugs:
Sub CreateHyperlinks()
Dim mySheet As String
Dim myRange As Excel.Range
Dim cell As Excel.Range
Set myRange = Excel.ThisWorkbook.Sheets("Control").Range("A1:A5") '<<adjust range to suit
For Each cell In myRange
Excel.ThisWorkbook.Sheets("Control").Hyperlinks.Add Anchor:=cell, Address:="", SubAddress:=cell.Value & "!A1" '<<from recorded macro
Next cell
End Sub
I ran across this error when i ran cordova build android
I solved this issue by firing ./sdkmanager --licenses and accepting all the licenses.
I think this is the most widely supported version (requiring only POSIX defined tr
and od
behavior):
cat "$file" | od -v -t x1 -A n | tr -d ' \n'
This uses od
to print each byte as hex without address without skipping repeated bytes and tr
to delete all spaces and linefeeds in the output. Note that not even the trailing linefeed is emitted here. (The cat
is intentional to allow multicore processing where cat
can wait for filesystem while od
is still processing previously read part. Single core users may want replace that with < "$file" od ...
to save starting one additional process.)
One another way is to separate out the APIs, services, and entities into different packages.
First argument in update
method is SyntheticEvent
object that contains common properties and methods to any event
, it is not reference to React component where there is property props
.
if you need pass argument to update method you can do it like this
onClick={ (e) => this.props.onClick(e, 'home', 'Home') }
and get these arguments inside update
method
update(e, space, txt){
console.log(e.target, space, txt);
}
event.target
gives you the native DOMNode
, then you need to use the regular DOM APIs to access attributes. For instance getAttribute
or dataset
<button
data-space="home"
className="home"
data-txt="Home"
onClick={ this.props.onClick }
/>
Button
</button>
onClick(e) {
console.log(e.target.dataset.txt, e.target.dataset.space);
}
The standard approach is to give the centered element fixed dimensions, and place it absolutely:
<div class='fullscreenDiv'>
<div class="center">Hello World</div>
</div>?
.center {
position: absolute;
width: 100px;
height: 50px;
top: 50%;
left: 50%;
margin-left: -50px; /* margin is -0.5 * dimension */
margin-top: -25px;
}?
PS > $c = Compare-Object -ReferenceObject (1..5) -DifferenceObject (1..6) -PassThru
PS > $c
6
Thank you Phil for your solution; in case someone ever gets in the same situation as me, here is a (more complex) variant:
---
# this is just to avoid a call to |default on each iteration
- set_fact:
postconf_d: {}
- name: 'get postfix default configuration'
command: 'postconf -d'
register: command
# the answer of the command give a list of lines such as:
# "key = value" or "key =" when the value is null
- name: 'set postfix default configuration as fact'
set_fact:
postconf_d: >
{{
postconf_d |
combine(
dict([ item.partition('=')[::2]|map('trim') ])
)
with_items: command.stdout_lines
This will give the following output (stripped for the example):
"postconf_d": {
"alias_database": "hash:/etc/aliases",
"alias_maps": "hash:/etc/aliases, nis:mail.aliases",
"allow_min_user": "no",
"allow_percent_hack": "yes"
}
Going even further, parse the lists in the 'value':
- name: 'set postfix default configuration as fact'
set_fact:
postconf_d: >-
{% set key, val = item.partition('=')[::2]|map('trim') -%}
{% if ',' in val -%}
{% set val = val.split(',')|map('trim')|list -%}
{% endif -%}
{{ postfix_default_main_cf | combine({key: val}) }}
with_items: command.stdout_lines
...
"postconf_d": {
"alias_database": "hash:/etc/aliases",
"alias_maps": [
"hash:/etc/aliases",
"nis:mail.aliases"
],
"allow_min_user": "no",
"allow_percent_hack": "yes"
}
A few things to notice:
in this case it's needed to "trim" everything (using the >-
in YAML and -%}
in Jinja), otherwise you'll get an error like:
FAILED! => {"failed": true, "msg": "|combine expects dictionaries, got u\" {u'...
obviously the {% if ..
is far from bullet-proof
in the postfix case, val.split(',')|map('trim')|list
could have been simplified to val.split(', ')
, but I wanted to point out the fact you will need to |list
otherwise you'll get an error like:
"|combine expects dictionaries, got u\"{u'...': <generator object do_map at ...
Hope this can help.
Manually add it when you build the query:
SELECT 'Site1' AS SiteName, t1.column, t1.column2
FROM t1
UNION ALL
SELECT 'Site2' AS SiteName, t2.column, t2.column2
FROM t2
UNION ALL
...
EXAMPLE:
DECLARE @t1 TABLE (column1 int, column2 nvarchar(1))
DECLARE @t2 TABLE (column1 int, column2 nvarchar(1))
INSERT INTO @t1
SELECT 1, 'a'
UNION SELECT 2, 'b'
INSERT INTO @t2
SELECT 3, 'c'
UNION SELECT 4, 'd'
SELECT 'Site1' AS SiteName, t1.column1, t1.column2
FROM @t1 t1
UNION ALL
SELECT 'Site2' AS SiteName, t2.column1, t2.column2
FROM @t2 t2
RESULT:
SiteName column1 column2
Site1 1 a
Site1 2 b
Site2 3 c
Site2 4 d
I would generally recommend using element.attachEvent (IE) or element.addEventListener (other browsers) over setting the onclick event directly as the latter will replace any existing event handlers for that element.
attachEvent / addEventListening allow multiple event handlers to be created.
IMHO Lookup tables is the way to go, with referential integrity. But only if you avoid "Evil Magic Numbers" by following an example such as this one: Generate enum from a database lookup table using T4
Have Fun!
You are looking for str.rsplit()
, with a limit:
print x.rsplit('-', 1)[0]
.rsplit()
searches for the splitting string from the end of input string, and the second argument limits how many times it'll split to just once.
Another option is to use str.rpartition()
, which will only ever split just once:
print x.rpartition('-')[0]
For splitting just once, str.rpartition()
is the faster method as well; if you need to split more than once you can only use str.rsplit()
.
Demo:
>>> x = 'http://test.com/lalala-134'
>>> print x.rsplit('-', 1)[0]
http://test.com/lalala
>>> 'something-with-a-lot-of-dashes'.rsplit('-', 1)[0]
'something-with-a-lot-of'
and the same with str.rpartition()
>>> print x.rpartition('-')[0]
http://test.com/lalala
>>> 'something-with-a-lot-of-dashes'.rpartition('-')[0]
'something-with-a-lot-of'
Unfortunately, this doesn't work if there are other, non-related directories already in the same dir. Looking for a solution. The error message is: "fatal: destination path '.' already exists...".
The solution in this case is:
git init
git remote add origin [email protected]:me/name.git
git pull origin master
This recipe works even if there are other directories in the one you want to checkout in.
The C Programming Language (K&R) would have you check for null == ptr to avoid an accidental assignment.
Make sure you have imported HttpClientModule
instead of adding HttpClient
direcly to the list of providers.
See https://angular.io/guide/http#setup for more info.
The HttpClientModule
actually provides HttpClient
for you. See https://angular.io/api/common/http/HttpClientModule:
Code sample:
import { HttpClientModule, /* other http imports */ } from "@angular/common/http";
@NgModule({
// ...other declarations, providers, entryComponents, etc.
imports: [
HttpClientModule,
// ...some other imports
],
})
export class AppModule { }
1 - in build.gradle change my supportLibVersion to 26.0.0
2 - in app/build.gradle use :
implementation "com.android.support:appcompat v7:${rootProject.ext.supportLibVersion}"
3 - cd android
4 - ./gradlew clean
5 - ./gradlew assembleRelease
the easiest way would be
which means you could just do:
new File(filename).text
Use runlike from git repository https://github.com/lavie/runlike
To install runlike
pip install runlike
As it accept container id as an argument so to extract container id use following command
docker ps -a -q
You are good to use runlike to extract complete docker run command with following command
runlike <docker container ID>
Yes:
#include <iostream>
#include <functional>
struct null_ref_t {
template <typename T>
operator T&() {
union TypeSafetyBreaker {
T *ptr;
// see https://stackoverflow.com/questions/38691282/use-of-union-with-reference
std::reference_wrapper<T> ref;
};
TypeSafetyBreaker ptr = {.ptr = nullptr};
// unwrap the reference
return ptr.ref.get();
}
};
null_ref_t nullref;
int main() {
int &a = nullref;
// Segmentation fault
a = 4;
return 0;
}
Assuming you are using MagicalRecord
and have a default persistence store:
I don't like all the solutions that assume certain files to exist and/or demand entering the entities names or classes. This is a Swift(2), safe way to delete all the data from all the entities. After deleting it will recreate a fresh stack too (I am actually not sure as to how neccessery this part is).
It's godo for "logout" style situations when you want to delete everything but have a working store and moc to get new data in (once the user logs in...)
extension NSManagedObject {
class func dropAllData() {
MagicalRecord.saveWithBlock({ context in
for name in NSManagedObjectModel.MR_defaultManagedObjectModel().entitiesByName.keys {
do { try self.deleteAll(name, context: context) }
catch { print("?? ?? Error when deleting \(name): \(error)") }
}
}) { done, err in
MagicalRecord.cleanUp()
MagicalRecord.setupCoreDataStackWithStoreNamed("myStoreName")
}
}
private class func deleteAll(name: String, context ctx: NSManagedObjectContext) throws {
let all = NSFetchRequest(entityName: name)
all.includesPropertyValues = false
let allObjs = try ctx.executeFetchRequest(all)
for obj in allObjs {
obj.MR_deleteEntityInContext(ctx)
}
}
}
What you request is quite a costy operation, make sure you don't need to do it often (e.g in a cycle).
If you need it to stay sorted and you update it frequently, you can create a custom collection. For example, I came up with one that has your TreeBidiMap
and TreeMultiset
under the hood. Implement only what you need and care about data integrity.
class MyCustomCollection implements Map<K, V> {
TreeBidiMap<K, V> map;
TreeMultiset<V> multiset;
public V put(K key, V value) {
removeValue(map.put(key, value));
multiset.add(value);
}
public boolean remove(K key) {
removeValue(map.remove(key));
}
/** removes value that was removed/replaced in map */
private removeValue(V value) {
if (value != null) {
multiset.remove(value);
}
}
public Set<K> keySet() {
return Collections.unmodifiableSet(map.keySet());
}
public Collection<V> values() {
return Collections.unmodifiableCollection(multiset);
}
// many more methods to be implemented, e.g. count, isEmpty etc.
// but these are fairly simple
}
This way, you have a sorted Multiset
returned from values()
. However, if you need it to be a list (e.g. you need the array-like get(index)
method), you'd need something more complex.
For brevity, I only return unmodifiable collections. What @Lino mentioned is correct, and modifying the keySet
or values
collection as it is would make it inconsistent. I don't know any consistent way to make the values
mutable, but the keySet
could support remove
if it uses the remove
method from the MyCustomCollection
class above.
Here is a function that takes as its arguments a DataFrame and a list of columns and coerces all data in the columns to numbers.
# df is the DataFrame, and column_list is a list of columns as strings (e.g ["col1","col2","col3"])
# dependencies: pandas
def coerce_df_columns_to_numeric(df, column_list):
df[column_list] = df[column_list].apply(pd.to_numeric, errors='coerce')
So, for your example:
import pandas as pd
def coerce_df_columns_to_numeric(df, column_list):
df[column_list] = df[column_list].apply(pd.to_numeric, errors='coerce')
a = [['a', '1.2', '4.2'], ['b', '70', '0.03'], ['x', '5', '0']]
df = pd.DataFrame(a, columns=['col1','col2','col3'])
coerce_df_columns_to_numeric(df, ['col2','col3'])
They are stored in the CGI fieldstorage object.
import cgi
form = cgi.FieldStorage()
print "The user entered %s" % form.getvalue("uservalue")
The server at x3.chatforyoursite.com
needs to output the following header:
Access-Control-Allow-Origin: http://www.example.com
Where http://www.example.com
is your website address. You should check your settings on chatforyoursite.com
to see if you can enable this - if not their technical support would probably be the best way to resolve this. However to answer your question, you need the remote site to allow your site to access AJAX responses client side.
If you really mean pure working Directory, this should suit for you.
Solution A:
Dim ParentPath As String: ParentPath = "\"
Dim ThisWorkbookPath As String
Dim ThisWorkbookPathParts, Part As Variant
Dim Count, Parts As Long
ThisWorkbookPath = ThisWorkbook.Path
ThisWorkbookPathParts = Split(ThisWorkbookPath, _
Application.PathSeparator)
Parts = UBound(ThisWorkbookPathParts)
Count = 0
For Each Part In ThisWorkbookPathParts
If Count > 0 Then
ParentPath = ParentPath & Part & "\"
End If
Count = Count + 1
If Count = Parts Then Exit For
Next
MsgBox "File-Drive = " & ThisWorkbookPathParts _
(LBound(ThisWorkbookPathParts))
MsgBox "Parent-Path = " & ParentPath
But if don't, this should be enough.
Solution B:
Dim ThisWorkbookPath As String
ThisWorkbookPath = ThisWorkbook.Path
MsgBox "Working-Directory = " & ThisWorkbookPath
if you use pg_dump with -Fp to backup in plain text format, use following command:
cat db.txt | psql dbname
to copy all data to your database with name dbname
You can cast your iterable to a list then use .size() on it.
Lists.newArrayList(iterable).size();
For the sake of clarity, the above method will require the following import:
import com.google.common.collect.Lists;
This may help you if you are experiencing \u00a0
in stead of (whitespace). I had this problem when I was trying to extract Device Contact Phone Numbers. I needed to modify the phoneNumber string so it has no whitespace in it.
NSString* yourString = [yourString stringByReplacingOccurrencesOfString:@"\u00a0" withString:@""];
When yourString
was the current phone number.
I've found this to work for my code,, however my code is getting the class out of an array within a for loop.
String className="";
className = list[i].getClass().getCanonicalName();
System.out.print(className); //Use this to test it works
if(Test-Path "C:\Program Files\Microsoft SQL Server\MSSQL11.SQLEXPRESS") { #Sql Server 2012
Import-Module SqlPs -DisableNameChecking
C: # Switch back from SqlServer
} else { #Sql Server 2008
Add-PSSnapin SqlServerCmdletSnapin100 # here live Invoke-SqlCmd
}
Invoke-Sqlcmd -InputFile "MySqlScript.sql" -ServerInstance "Database name" -ErrorAction 'Stop' -Verbose -QueryTimeout 1800 # 30min
docker export -o <nameOfContainer>.tar <nameOfContainer>
Might need to prune the existing container using docker prune ...
Import with required modifications:
cat <nameOfContainer>.tar | docker import -c "ENTRYPOINT service mysql start && /bin/bash" - <nameOfContainer>
Run the container for example with always restart option to make sure it will auto resume after host/daemon recycle:
docker run -d -t -i --restart always --name <nameOfContainer> <nameOfContainer> /bin/bash
Side note: In my opinion reasonable is to start only cron service leaving container as clean as possible then just modify crontab or cron.hourly, .daily etc... with corresponding checkup/monitoring scripts. Reason is You rely only on one daemon and in case of changes it is easier with ansible or puppet to redistribute cron scripts instead of track services that start at boot.
I like the result I got here which i think is easy to read and short enough to fit as a solution.
function NumInWords (number) {_x000D_
const first = ['','one ','two ','three ','four ', 'five ','six ','seven ','eight ','nine ','ten ','eleven ','twelve ','thirteen ','fourteen ','fifteen ','sixteen ','seventeen ','eighteen ','nineteen '];_x000D_
const tens = ['', '', 'twenty','thirty','forty','fifty', 'sixty','seventy','eighty','ninety'];_x000D_
const mad = ['', 'thousand', 'million', 'billion', 'trillion'];_x000D_
let word = '';_x000D_
_x000D_
for (let i = 0; i < mad.length; i++) {_x000D_
let tempNumber = number%(100*Math.pow(1000,i));_x000D_
if (Math.floor(tempNumber/Math.pow(1000,i)) !== 0) {_x000D_
if (Math.floor(tempNumber/Math.pow(1000,i)) < 20) {_x000D_
word = first[Math.floor(tempNumber/Math.pow(1000,i))] + mad[i] + ' ' + word;_x000D_
} else {_x000D_
word = tens[Math.floor(tempNumber/(10*Math.pow(1000,i)))] + '-' + first[Math.floor(tempNumber/Math.pow(1000,i))%10] + mad[i] + ' ' + word;_x000D_
}_x000D_
}_x000D_
_x000D_
tempNumber = number%(Math.pow(1000,i+1));_x000D_
if (Math.floor(tempNumber/(100*Math.pow(1000,i))) !== 0) word = first[Math.floor(tempNumber/(100*Math.pow(1000,i)))] + 'hunderd ' + word;_x000D_
}_x000D_
return word;_x000D_
}_x000D_
_x000D_
console.log(NumInWords(89754697976431))
_x000D_
And the result is :
eighty-nine trillion seven hundred fifty-four billion six hundred ninety-seven million nine hundred seventy-six thousand four hundred thirty-one
$mydatetime = "2012-04-02 02:57:54";
$datetimearray = explode(" ", $mydatetime);
$date = $datetimearray[0];
$time = $datetimearray[1];
$reformatted_date = date('d-m-Y',strtotime($date));
$reformatted_time = date('Gi.s',strtotime($time));
1.
first of all Port 80(or what ever you are using) and 443 must be allow for both TCP and UDP packets. To do this, create 2 inbound rules for TPC and UDP on Windows Firewall for port 80 and 443. (or you can disable your whole firewall for testing but permanent solution if allow inbound rule)
2.
You need to change the security setting on Apache to allow access from anywhere else, so edit your httpd.conf
file.
Change this section from :
# onlineoffline tag - don't remove
Order Deny,Allow
Deny from all
Allow from 127.0.0.1
Allow from ::1
Allow from localhost
To :
# onlineoffline tag - don't remove
Order Allow,Deny
Allow from all
if "Allow from all" line not work for your then use "Require all granted" then it will work for you.
In version 3 and > of WAMPServer there is a Virtual Hosts pre defined for localhost
so dont amend the httpd.conf
file at all, leave it as you found it.
Using the menus, edit the httpd-vhosts.conf
file.
It should look like this :
<VirtualHost *:80>
ServerName localhost
DocumentRoot D:/wamp/www
<Directory "D:/wamp/www/">
Options +Indexes +FollowSymLinks +MultiViews
AllowOverride All
Require local
</Directory>
</VirtualHost>
Amend it to
<VirtualHost *:80>
ServerName localhost
DocumentRoot D:/wamp/www
<Directory "D:/wamp/www/">
Options +Indexes +FollowSymLinks +MultiViews
AllowOverride All
Require all granted
</Directory>
</VirtualHost>
Note:if you are running wamp for other than port 80 then VirtualHost will be like VirtualHost *:86.(86 or port whatever you are using) instead of VirtualHost *:80
3. Dont forget to restart All Services of Wamp or Apache after making this change
A short and essential definition might be this: Linq Aggregate extension method allows to declare a sort of recursive function applied on the elements of a list, the operands of whom are two: the elements in the order in which they are present into the list, one element at a time, and the result of the previous recursive iteration or nothing if not yet recursion.
In this way you can compute the factorial of numbers, or concatenate strings.
You can use the excecl command
int execl(const char *path, const char *arg, ...);
Like shown here
#include <stdio.h>
#include <unistd.h>
#include <dirent.h>
int main (void) {
return execl ("/bin/pwd", "pwd", NULL);
}
The second argument will be the name of the process as it will appear in the process table.
Alternatively, you can use the getcwd() function to get the current working directory:
#include <stdio.h>
#include <unistd.h>
#include <dirent.h>
#define MAX 255
int main (void) {
char wd[MAX];
wd[MAX-1] = '\0';
if(getcwd(wd, MAX-1) == NULL) {
printf ("Can not get current working directory\n");
}
else {
printf("%s\n", wd);
}
return 0;
}
You can use !setup.py install
to do that.
Colab is just like a Jupyter notebook. Therefore, we can use the !
operator here to install any package in Colab. What !
actually does is, it tells the notebook cell that this line is not a Python code, its a command line script. So, to run any command line script in Colab, just add a !
preceding the line.
For example: !pip install tensorflow
. This will treat that line (here pip install tensorflow
) as a command prompt line and not some Python code. However, if you do this without adding the !
preceding the line, it'll throw up an error saying "invalid syntax".
But keep in mind that you'll have to upload the setup.py
file to your drive before doing this (preferably into the same folder where your notebook is).
Hope this answers your question :)
All of these three solutions give the same results if the input is a string:
1.
def reverse(text):
result = ""
for i in range(len(text),0,-1):
result += text[i-1]
return (result)
2.
text[::-1]
3.
"".join(reversed(text))
Since we are only looking at the distribution of a single variable ("Position") as opposed to looking at the relationship between two variables, then perhaps a histogram would be the more appropriate graph. ggplot has geom_histogram() that makes it easy:
ggplot(theTable, aes(x = Position)) + geom_histogram(stat="count")
Using geom_histogram():
I think geom_histogram() is a little quirky as it treats continuous and discrete data differently.
For continuous data, you can just use geom_histogram() with no parameters. For example, if we add in a numeric vector "Score"...
Name Position Score
1 James Goalkeeper 10
2 Frank Goalkeeper 20
3 Jean Defense 10
4 Steve Defense 10
5 John Defense 20
6 Tim Striker 50
and use geom_histogram() on the "Score" variable...
ggplot(theTable, aes(x = Score)) + geom_histogram()
For discrete data like "Position" we have to specify a calculated statistic computed by the aesthetic to give the y value for the height of the bars using stat = "count"
:
ggplot(theTable, aes(x = Position)) + geom_histogram(stat = "count")
Note: Curiously and confusingly you can also use stat = "count"
for continuous data as well and I think it provides a more aesthetically pleasing graph.
ggplot(theTable, aes(x = Score)) + geom_histogram(stat = "count")
Edits: Extended answer in response to DebanjanB's helpful suggestions.
Overloading is fine, but if there's a lot of variables that needs default value, you will end up with :
public void methodA(A arg1) { }
public void methodA( B arg2,) { }
public void methodA(C arg3) { }
public void methodA(A arg1, B arg2) { }
public void methodA(A arg1, C arg3) { }
public void methodA( B arg2, C arg3) { }
public void methodA(A arg1, B arg2, C arg3) { }
So I would suggest use the Variable Argument provided by Java. Here's a link for explanation.
If you dont want to use any module for age calculation
var age = Math.floor((new Date() - new Date(date_of_birth)) / 1000 / 60 / 60 / 24 / 365.25)
You can use like this
$(".jsgrid-cell").each(function(i,v){
var txt=$(v).text();
if(txt.length>100){
var shortText=txt.substring(0, 100)+
"<span onclick='$(this).hide();$(this).next().toggle();'>"+
"..."+
"</span>"+
"<span style='display:none'>"+
txt.substring(100, txt.length)+
"</span>";
$(v).html(shortText );
}
});
Or you could use Red Gate SQL Refactor or SQL Prompt, which expands your SELECT * into column lists with a click of the Tab button
so in your case, if you type in SELECT * FROM A JOIN B ... Go to the end of *, Tab button, voila! you'll see SELECT A.column1, A.column2, .... , B.column1, B.column2 FROM A JOIN B
It's not free though
matrix multiplication, see the following example:
> A <- matrix (c(1,3,4, 5,8,9, 1,3,3), 3,3)
> A
[,1] [,2] [,3]
[1,] 1 5 1
[2,] 3 8 3
[3,] 4 9 3
>
> B <- matrix (c(2,4,5, 8,9,2, 3,4,5), 3,3)
>
> B
[,1] [,2] [,3]
[1,] 2 8 3
[2,] 4 9 4
[3,] 5 2 5
>
>
> A %*% B
[,1] [,2] [,3]
[1,] 27 55 28
[2,] 53 102 56
[3,] 59 119 63
> B %*% A
[,1] [,2] [,3]
[1,] 38 101 35
[2,] 47 128 43
[3,] 31 86 26
Also see:
http://en.wikipedia.org/wiki/Matrix_multiplication
If this does not follow the size of matrix rule you will get the error:
> A <- matrix(c(1,2,3,4,5,6), 3,2)
> A
[,1] [,2]
[1,] 1 4
[2,] 2 5
[3,] 3 6
> B <- matrix (c(3,1,3,4,4,4,4,4,3), 3,3)
> B
[,1] [,2] [,3]
[1,] 3 4 4
[2,] 1 4 4
[3,] 3 4 3
> A%*%B
Error in A %*% B : non-conformable arguments
After a lot of search and testing I got this solution which is simple to implement and easier to customize. In this solution:
Simple put the flowing CSS at the top of your page and all checkboxes style will change like this:
input[type=checkbox] {
transform: scale(1.5);
}
input[type=checkbox] {
width: 30px;
height: 30px;
margin-right: 8px;
cursor: pointer;
font-size: 17px;
visibility: hidden;
}
input[type=checkbox]:after {
content: " ";
background-color: #fff;
display: inline-block;
margin-left: 10px;
padding-bottom: 5px;
color: #00BFF0;
width: 22px;
height: 25px;
visibility: visible;
border: 1px solid #00BFF0;
padding-left: 3px;
border-radius: 5px;
}
input[type=checkbox]:checked:after {
content: "\2714";
padding: -5px;
font-weight: bold;
}
_x000D_
<input type="checkbox" id="checkbox1" />
<label for="checkbox1">Checkbox</label>
_x000D_
Another reason for similar error message is trying to mock a final
method. One shouldn't attempt to mock final methods (see Final method mocking).
I have also confronted the error in a multi-threaded test. Answer by gna worked in that case.
I have seen the screen shoot, the issue you are having is missing msvcp110.dll , this file you can download from
https://www.dll-files.com/msvcp110.dll.html
and upload to C:/Windows folder
than after edit php.ini from XAMPP
Change
;extension=php_intl.dll
to
extension=php_intl.dll
Save the file and restart Apache from XAMPP
In the box is working on being able to convert android projects to iOS
It took me a while to understand @user1996230's answer so I decided to provide a more explicit example. In the below example I make a proxy for an object loaded in another AppDomain and call a method on that object from another domain.
class ProxyObject : MarshalByRefObject
{
private Type _type;
private Object _object;
public void InstantiateObject(string AssemblyPath, string typeName, object[] args)
{
assembly = Assembly.LoadFrom(AppDomain.CurrentDomain.BaseDirectory + AssemblyPath); //LoadFrom loads dependent DLLs (assuming they are in the app domain's base directory
_type = assembly.GetType(typeName);
_object = Activator.CreateInstance(_type, args); ;
}
public void InvokeMethod(string methodName, object[] args)
{
var methodinfo = _type.GetMethod(methodName);
methodinfo.Invoke(_object, args);
}
}
static void Main(string[] args)
{
AppDomainSetup setup = new AppDomainSetup();
setup.ApplicationBase = @"SomePathWithDLLs";
AppDomain domain = AppDomain.CreateDomain("MyDomain", null, setup);
ProxyObject proxyObject = (ProxyObject)domain.CreateInstanceFromAndUnwrap(typeof(ProxyObject).Assembly.Location,"ProxyObject");
proxyObject.InstantiateObject("SomeDLL","SomeType", new object[] { "someArgs});
proxyObject.InvokeMethod("foo",new object[] { "bar"});
}
Single elements of a tuple a
can be accessed -in an indexed array-like fashion-
via a[0]
, a[1]
, ... depending on the number of elements in the tuple.
If your tuple is a=(3,"a")
a[0]
yields 3
,a[1]
yields "a"
def tup():
return (3, "hello")
tup()
returns a 2-tuple.
In order to "solve"
i = 5 + tup() # I want to add just the three
you select the 3 by
tup()[0| #first element
so in total
i = 5 + tup()[0]
Go with namedtuple that allows you to access tuple elements by name (and by index). Details at https://docs.python.org/3/library/collections.html#collections.namedtuple
>>> import collections
>>> MyTuple=collections.namedtuple("MyTuple", "mynumber, mystring")
>>> m = MyTuple(3, "hello")
>>> m[0]
3
>>> m.mynumber
3
>>> m[1]
'hello'
>>> m.mystring
'hello'
I'll disagree with The Tin Man here. I regard rbenv as preferable to RVM. rbenv
doesn't interfere drastically with your shell the way RVM does, and it lets you add separate Ruby installations in ordinary folders that you can examine directly. It allows you to compile Ruby yourself. Good outline of the differences here: https://github.com/sstephenson/rbenv/wiki/Why-rbenv%3F
I provide instructions for compiling Ruby 1.9 for rbenv here. Further, more detailed information here. I have used this technique with easy success on Snow Leopard, Lion, and Mountain Lion.
It worked well for me:
find directory_to_delete/ -type d -name '*.svn' | xargs rm -rf
Just use 9 in numeric keyboard with num-lock off.
7 rotates in the opposite direction.
you can use coroutines as well, like this one :
CoroutineScope(Dispatchers.Main).launch {
delay(10)
val width = view.width()
val height= view.height()
// do your job ....
}
iptables(8) has a statistic match module that can be used to match every nth packet. To drop this packet, just append -j DROP.
After read a lot of posts, I made my own solution as follow:
SCRIPT:
function extendConsole() {
"use strict";
try {
var disabledConsoles = {};
console.enable = function (level, enabled) {
// Prevent errors in browsers without console[level]
if (window.console === 'undefined' || !window.console || window.console === null) {
window.console = {};
}
if (window.console[level] === 'undefined' || !window.console[level] || window.console[level] == null) {
window.console[level] = function() {};
}
if (enabled) {
if (disabledConsoles[level]) {
window.console[level] = disabledConsoles[level];
}
console.info("console." + level + "() was enabled.");
} else {
disabledConsoles[level] = window.console[level];
window.console[level] = function () { };
console.info("console." + level + "() was disabled.");
}
};
} catch (exception) {
console.error("extendConsole() threw an exception.");
console.debug(exception);
}
}
USAGE:
extendConsole();
console.enable("debug", window.debugMode);
EXAMPLE:
There are multiple possible causes for this error:
1) When you put the property 'x' inside brackets you are trying to bind to it. Therefore first thing to check is if the property 'x' is defined in your component with an Input()
decorator
Your html file:
<body [x]="...">
Your class file:
export class YourComponentClass {
@Input()
x: string;
...
}
(make sure you also have the parentheses)
2) Make sure you registered your component/directive/pipe classes in NgModule:
@NgModule({
...
declarations: [
...,
YourComponentClass
],
...
})
See https://angular.io/guide/ngmodule#declare-directives for more details about declare directives.
3) Also happens if you have a typo in your angular directive. For example:
<div *ngif="...">
^^^^^
Instead of:
<div *ngIf="...">
This happens because under the hood angular converts the asterisk syntax to:
<div [ngIf]="...">
One more subtle difference is the treatment of falsy values in {{#property}}...{{/property}}
blocks. Most mustache implementations will just obey JS falsiness here, not rendering the block if property
is ''
or '0'.
Handlebars will render the block for ''
and 0
, but not other falsy values. This can cause some trouble when migrating templates.
Start your program as an administrator. The program can't rewrite your files cause your files are in a protected location on your hard drive.
From Java 8 you can use this simple method for picking a random date from the date picker
List<WebElement> datePickerDays = driver.findElements(By.tagName("td"));
datePickerDays.stream().filter(e->e.getText().equals(whichDateYouWantToClick)).findFirst().get().click();
A big difference is that ConstraintLayout respects constraints even if the view is gone. So it won't break the layout if you have a chain and you want to make a view disappear in the middle.
This code try to resolve this type of comparison versions.
Most of the version specifiers, like >= 1.0, are self-explanatory. The specifier ~> has a special meaning, best shown by example. ~> 2.0.3 is identical to >= 2.0.3 and < 2.1. ~> 2.1 is identical to >= 2.1 and < 3.0.
public static boolean apply(String cmpDeviceVersion, String reqDeviceVersion)
{
Boolean equal = !cmpDeviceVersion.contains(">") && !cmpDeviceVersion.contains(">=") &&
!cmpDeviceVersion.contains("<") && !cmpDeviceVersion.contains("<=") &&
!cmpDeviceVersion.contains("~>");
Boolean between = cmpDeviceVersion.contains("~>");
Boolean higher = cmpDeviceVersion.contains(">") && !cmpDeviceVersion.contains(">=") && !cmpDeviceVersion.contains("~>");
Boolean higherOrEqual = cmpDeviceVersion.contains(">=");
Boolean less = cmpDeviceVersion.contains("<") && !cmpDeviceVersion.contains("<=");
Boolean lessOrEqual = cmpDeviceVersion.contains("<=");
cmpDeviceVersion = cmpDeviceVersion.replaceAll("[<>=~]", "");
cmpDeviceVersion = cmpDeviceVersion.trim();
String[] version = cmpDeviceVersion.split("\\.");
String[] reqVersion = reqDeviceVersion.split("\\.");
if(equal)
{
return isEqual(version, reqVersion);
}
else if(between)
{
return isBetween(version, reqVersion);
}
else if(higher)
{
return isHigher(version, reqVersion);
}
else if(higherOrEqual)
{
return isEqual(version, reqVersion) || isHigher(version, reqVersion);
}
else if(less)
{
return isLess(version, reqVersion);
}
else if(lessOrEqual)
{
return isEqual(version, reqVersion) || isLess(version, reqVersion);
}
return false;
}
private static boolean isEqual(String[] version, String[] reqVersion)
{
String strVersion = StringUtils.join(version);
String strReqVersion = StringUtils.join(reqVersion);
if(version.length > reqVersion.length)
{
Integer diff = version.length - reqVersion.length;
strReqVersion += StringUtils.repeat(".0", diff);
}
else if(reqVersion.length > version.length)
{
Integer diff = reqVersion.length - version.length;
strVersion += StringUtils.repeat(".0", diff);
}
return strVersion.equals(strReqVersion);
}
private static boolean isHigher(String[] version, String[] reqVersion)
{
String strVersion = StringUtils.join(version);
String strReqVersion = StringUtils.join(reqVersion);
if(version.length > reqVersion.length)
{
Integer diff = version.length - reqVersion.length;
strReqVersion += StringUtils.repeat(".0", diff);
}
else if(reqVersion.length > version.length)
{
Integer diff = reqVersion.length - version.length;
strVersion += StringUtils.repeat(".0", diff);
}
return strReqVersion.compareTo(strVersion) > 0;
}
private static boolean isLess(String[] version, String[] reqVersion)
{
String strVersion = StringUtils.join(version);
String strReqVersion = StringUtils.join(reqVersion);
if(version.length > reqVersion.length)
{
Integer diff = version.length - reqVersion.length;
strReqVersion += StringUtils.repeat(".0", diff);
}
else if(reqVersion.length > version.length)
{
Integer diff = reqVersion.length - version.length;
strVersion += StringUtils.repeat(".0", diff);
}
return strReqVersion.compareTo(strVersion) < 0;
}
private static boolean isBetween(String[] version, String[] reqVersion)
{
return (isEqual(version, reqVersion) || isHigher(version, reqVersion)) &&
isLess(getNextVersion(version), reqVersion);
}
private static String[] getNextVersion(String[] version)
{
String[] nextVersion = new String[version.length];
for(int i = version.length - 1; i >= 0 ; i--)
{
if(i == version.length - 1)
{
nextVersion[i] = "0";
}
else if((i == version.length - 2) && NumberUtils.isNumber(version[i]))
{
nextVersion[i] = String.valueOf(NumberUtils.toInt(version[i]) + 1);
}
else
{
nextVersion[i] = version[i];
}
}
return nextVersion;
}
For frequent uses of this command I found it easy to add the location of C:\xampp\apache\bin
to the PATH
. Use whatever directory you have this installed in.
Then you can run from any directory in command line:
httpd -k restart
The answer above that suggests httpd -k -restart is actually a typo. You can see the commands by running httpd /?
Use a subquery in the where clause. For a delete query requirig a join, this example will delete rows that are unmatched in the joined table "docx_document" and that have a create date > 120 days in the "docs_documents" table.
delete from docs_documents d
where d.id in (
select a.id from docs_documents a
left join docx_document b on b.id = a.document_id
where b.id is null
and floor(sysdate - a.create_date) > 120
);
// db table name / blog_post / menu / site_title
// Insert into Table (column names separated with comma)
$sql = "INSERT INTO product_cate (site_title, sub_title)
VALUES ('$site_title', '$sub_title')";
// db table name / blog_post / menu / site_title
// Insert into Table (column names separated with comma)
$sql = "INSERT INTO menu (menu_title, sub_menu)
VALUES ('$menu_title', '$sub_menu', )";
// db table name / blog_post / menu / site_title
// Insert into Table (column names separated with comma)
$sql = "INSERT INTO blog_post (post_title, post_des, post_img)
VALUES ('$post_title ', '$post_des', '$post_img')";
Here are the two functions I use. They are based on matrix rotations. and can rotate around arbitrary axes. To rotate using the world's axes you would want to use the second function rotateAroundWorldAxis().
// Rotate an object around an arbitrary axis in object space
var rotObjectMatrix;
function rotateAroundObjectAxis(object, axis, radians) {
rotObjectMatrix = new THREE.Matrix4();
rotObjectMatrix.makeRotationAxis(axis.normalize(), radians);
// old code for Three.JS pre r54:
// object.matrix.multiplySelf(rotObjectMatrix); // post-multiply
// new code for Three.JS r55+:
object.matrix.multiply(rotObjectMatrix);
// old code for Three.js pre r49:
// object.rotation.getRotationFromMatrix(object.matrix, object.scale);
// old code for Three.js r50-r58:
// object.rotation.setEulerFromRotationMatrix(object.matrix);
// new code for Three.js r59+:
object.rotation.setFromRotationMatrix(object.matrix);
}
var rotWorldMatrix;
// Rotate an object around an arbitrary axis in world space
function rotateAroundWorldAxis(object, axis, radians) {
rotWorldMatrix = new THREE.Matrix4();
rotWorldMatrix.makeRotationAxis(axis.normalize(), radians);
// old code for Three.JS pre r54:
// rotWorldMatrix.multiply(object.matrix);
// new code for Three.JS r55+:
rotWorldMatrix.multiply(object.matrix); // pre-multiply
object.matrix = rotWorldMatrix;
// old code for Three.js pre r49:
// object.rotation.getRotationFromMatrix(object.matrix, object.scale);
// old code for Three.js pre r59:
// object.rotation.setEulerFromRotationMatrix(object.matrix);
// code for r59+:
object.rotation.setFromRotationMatrix(object.matrix);
}
So you should call these functions within your anim
function (requestAnimFrame callback), resulting in a rotation of 90 degrees on the x-axis:
var xAxis = new THREE.Vector3(1,0,0);
rotateAroundWorldAxis(mesh, xAxis, Math.PI / 180);
I want to let everyone know that sometimes this error just is a result of some weird memory error. Restart your pc and go back into visual studio and it will be gone!! Bizarre! Try that before you start playing around with your web config file etc like I did!!!! ;-)
In jQuery 1.2 and newer you no longer have to position the element absolutely; you can use normal relative positioning and use += or -= to add to or subtract from properties, e.g.
$("#startAnimation").click(function(){
$(".toBeAnimated").animate({
marginLeft: "+=250px",
}, 1000 );
});
And to echo the guy who answered first's advice: Javascript is not performant. Don't overuse animations, or expect things than run nice and fast on your high performance PC on Chrome to look good on a bog-standard PC running IE. Test it, and make sure it degrades well!
With jQuery, I've done it this way:
function checkKey(e){
switch (e.keyCode) {
case 40:
alert('down');
break;
case 38:
alert('up');
break;
case 37:
alert('left');
break;
case 39:
alert('right');
break;
default:
alert('???');
}
}
if ($.browser.mozilla) {
$(document).keypress (checkKey);
} else {
$(document).keydown (checkKey);
}
Also, try these plugins, which looks like they do all that work for you:
http://www.openjs.com/scripts/events/keyboard_shortcuts
http://www.webappers.com/2008/07/31/bind-a-hot-key-combination-with-jquery-hotkeys/
My which pip
shows the following path:
$ which pip
/home/kmario23/anaconda3/bin/pip
So, whatever package I install using pip install <package-name>
will have to be reflected in the list of packages when the list is exported using:
$ conda list --export > conda_list.txt
But, I don't. So, instead I used the following command as suggested by several others:
# get environment name by
$ conda-env list
# get list of all installed packages by (conda, pip, etc.,)
$ conda-env export -n <my-environment-name> > all_packages.yml
# if you haven't created any specific env, then just use 'root'
Now, I can see all the packages in my all-packages.yml
file.
Set Precompile Bridging Header to No fix the problem for me.
You override $today
in the if statement.
if($dd<10){$dd='0'+dd} if($mm<10){$mm='0'+$mm} $today = $dd+'/'+$mm+'/'+$yyyy;
It is then not a Date() object anymore - hence the error.
here's an awk script
awk 'BEGIN{srand() }
{ lines[++d]=$0 }
END{
while (1){
if (e==d) {break}
RANDOM = int(1 + rand() * d)
if ( RANDOM in lines ){
print lines[RANDOM]
delete lines[RANDOM]
++e
}
}
}' file
output
$ cat file
1
2
3
4
5
6
7
8
9
10
$ ./shell.sh
7
5
10
9
6
8
2
1
3
4
One possible way to count lines of code in Eclipse:
using the Search / File... menu, select File Search tab, specify \n[\s]* for Containing text (this will not count empty lines), and tick Regular expression.
Hat tip: www.monblocnotes.com/node/2030
Below is an example of multiple figures that I used recently in Latex. You need to call these packages
\usepackage{graphicx}
\usepackage{subfig})
\begin{figure}[H]%
\centering
\subfloat[Row1]{{\includegraphics[scale=.36]{1.png} }}%
\subfloat[Row2]{{\includegraphics[scale=.36]{2.png} }}%
\subfloat[Row3]{{\includegraphics[scale=.36]{3.png} }}%
\hfill
\subfloat[Row4]{{\includegraphics[scale=0.37]{4.png} }}%
\subfloat[Row5]{{\includegraphics[scale=0.37]{5.png} }}%
\caption{Multiple figures in latex.}%
\label{fig:MFL}%
\end{figure}
Assume, selectDrop is the class present in your HTML tag.So, this much of code is enough to change default arrow icon:
.selectDrop{
background: url(../images/icn-down-arrow-light.png) no-repeat right #ddd; /*To change default icon with provided image*/
-webkit-appearance:none; /*For hiding default pointer of drop-down on Chrome*/
-moz-appearance:none; /*For hiding default pointer of drop-down on Mozilla*/
background-position-x: 90%; /*Adjust according to width of dropdown*/
}
If you would need to disable E_DEPRACATED also, use:
php_value error_reporting 22527
In my case CMS Made Simple was complaining "E_STRICT is enabled in the error_reporting" as well as "E_DEPRECATED is enabled". Adding that one line to .htaccess solved both misconfigurations.
Although building the URL or using tools is still possible, it is not needed anymore.
https://www.nuget.org/ currently has a download link named "Download package", that is available even if you don't have an account on the site.
(at the bottom of the right column).
Example of EntityFramework's detail page: https://www.nuget.org/packages/EntityFramework/: (Updated after comment of kwitee.)
The only thing that worked for me was downloading the mysql-connector-java-5.0.8-bin.jar directly from the MySQL website:
http://dev.mysql.com/downloads/connector/j/3.1.html
Then if you're using Eclipse paste this mysql-connector-java-5.0.8-bin.jar in the WEB-INF lib folder
If doesn't works try with any of the solutions posted in this link: http://javarevisited.blogspot.com/2012/03/jdbc-javalangclassnotfoundexception.html
Assuming someTestObj
is a class
and not a struct
, the object is passed by reference, which means that both obj
and someTestObj
refer to the same object. E.g. changing name
in one will change it in the other. However, unlike if you passed it using the ref
keyword, setting obj = somethingElse
will not change someTestObj
.
The universal solution is to connect your device to Mac and to observe what's going on during installation. I got an error:
Could not load download manifest with underlying error: Error Domain=NSURLErrorDomain Code=-1202 "Cannot connect to the Store" UserInfo=0x146635d0 {NSLocalizedDescription=Cannot connect to the Store, NSLocalizedRecoverySuggestion=Would you like to connect to the server anyway?, NSLocalizedFailureReason=A secure connection could not be established. Please check your Date & Time settings., NSErrorFailingURLStringKey=https://myserver.com/app/manifest.plist, NSUnderlyingError=0x14678880 "The certificate for this server is invalid. You might be connecting to a server that is pretending to be “myserver.com” which could put your confidential information at risk.", NSURLErrorFailingURLPeerTrustErrorKey=, NSErrorFailingURLKey=https://myserver.com/app/manifest.plist}
There was even the suggestion in that error to check date settings. For some reason the date was 1 January 1970. Setting correct date solved the problem.
If you compute modulo a power of two, using bitwise AND is simpler and generally faster than performing division. If b
is a power of two, a % b == a & (b - 1)
.
For example, let's take a value in register EAX, modulo 64.
The simplest way would be AND EAX, 63
, because 63 is 111111 in binary.
The masked, higher digits are not of interest to us. Try it out!
Analogically, instead of using MUL or DIV with powers of two, bit-shifting is the way to go. Beware signed integers, though!
By using exploits or on badly configured servers it could be possible to download your PHP source. You could however either obfuscate and/or encrypt your code (using Zend Guard, Ioncube or a similar app) if you want to make sure your source will not be readable (to be accurate, obfuscation by itself could be reversed given enough time/resources, but I haven't found an IonCube or Zend Guard decryptor yet...).
Inside fragment for kotlin sample would help someone
textViewStatus.setTextColor(ContextCompat.getColor(context!!, R.color.red))
if you use databinding;
bindingView.textViewStatus.setTextColor(ContextCompat.getColor(context!!, R.color.red))
Where bindingView is initialized in onCreateView like this
private lateinit var bindingView: FragmentBookingHistoryDetailBinding
bindingView = DataBindingUtil.inflate(inflater, R.layout.your_layout_xml, container, false)
When you create a Dynamic Web Project you have the option to automatically create the web.xml file. If you don't mark that, the eclipse doesn't create it...
So, you have to add a new web.xml file in the WEB-INF folder.
To add a web.xml click on Next
-> Next
instead of Finish
. You will find it on the final screen of the wizard.
Might be already answered, but you can try this simple program to determine if and what installation of boost you have :
#include<boost/version.hpp>
#include<iostream>
using namespace std;
int main()
{
cout<<BOOST_VERSION<<endl;
return 0;
}
Slight modification of this answer that seems to work well.
Function
function roundToStep(value, stepParam) {
var step = stepParam || 1.0;
var inv = 1.0 / step;
return Math.round(value * inv) / inv;
}
Usage
roundToStep(2.55) = 3
roundToStep(2.55, 0.1) = 2.6
roundToStep(2.55, 0.01) = 2.55
You do it like this:
df = read.table("file.txt", nrows=1, header=TRUE, sep="\t", stringsAsFactors=FALSE)
colClasses = as.list(apply(df, 2, class))
needCols = c("Year", "Jan", "Feb", "Mar", "Apr", "May", "Jun")
colClasses[!names(colClasses) %in% needCols] = list(NULL)
df = read.table("file.txt", header=TRUE, colClasses=colClasses, sep="\t", stringsAsFactors=FALSE)
The context menu shown above is accessible by right clicking / presssing & holding the "reload" button, while Chrome Dev Tools is opened.
Empty cache and hard reload works best for me.
Another Advantage: This option keeps all other opened tabs and website data untouched. It only reloads and clears the current page.
There is no advantage of using one vs the other, but, there is a specific case where throw
won't work. However, those cases can be fixed.
Any time you are inside of a promise callback, you can use throw
. However, if you're in any other asynchronous callback, you must use reject
.
For example, this won't trigger the catch:
new Promise(function() {
setTimeout(function() {
throw 'or nah';
// return Promise.reject('or nah'); also won't work
}, 1000);
}).catch(function(e) {
console.log(e); // doesn't happen
});
_x000D_
Instead you're left with an unresolved promise and an uncaught exception. That is a case where you would want to instead use reject
. However, you could fix this in two ways.
new Promise(function(resolve, reject) {
setTimeout(function() {
reject('or nah');
}, 1000);
}).catch(function(e) {
console.log(e); // works!
});
_x000D_
function timeout(duration) { // Thanks joews
return new Promise(function(resolve) {
setTimeout(resolve, duration);
});
}
timeout(1000).then(function() {
throw 'worky!';
// return Promise.reject('worky'); also works
}).catch(function(e) {
console.log(e); // 'worky!'
});
_x000D_
[My answer is wrong, but I've left it here because the comments are useful].
Forward declaring enums is non-standard, because pointers to different enum types are not guaranteed to be the same size. The compiler may need to see the definition to know what size pointers can be used with this type.
In practice, at least on all the popular compilers, pointers to enums are a consistent size. Forward declaration of enums is provided as a language extension by Visual C++, for example.
Using numpy, you can define the following:
import numpy as np
def cart2pol(x, y):
rho = np.sqrt(x**2 + y**2)
phi = np.arctan2(y, x)
return(rho, phi)
def pol2cart(rho, phi):
x = rho * np.cos(phi)
y = rho * np.sin(phi)
return(x, y)
To further generalize @Alexander's example, outer
is relevant in cases where a function must compute itself on each pair of vector values:
vars1<-c(1,2,3)
vars2<-c(10,20,30)
mult_one<-function(var1,var2)
{
var1*var2
}
outer(vars1,vars2,mult_one)
gives:
> outer(vars1, vars2, mult_one)
[,1] [,2] [,3]
[1,] 10 20 30
[2,] 20 40 60
[3,] 30 60 90
When your class implements Comparable, the compareTo
method of the class is defining the "natural" ordering of that object. That method is contractually obligated (though not demanded) to be in line with other methods on that object, such as a 0 should always be returned for objects when the .equals()
comparisons return true.
A Comparator is its own definition of how to compare two objects, and can be used to compare objects in a way that might not align with the natural ordering.
For example, Strings are generally compared alphabetically. Thus the "a".compareTo("b")
would use alphabetical comparisons. If you wanted to compare Strings on length, you would need to write a custom comparator.
In short, there isn't much difference. They are both ends to similar means. In general implement comparable for natural order, (natural order definition is obviously open to interpretation), and write a comparator for other sorting or comparison needs.
This worked for me just now:
<canvas id="c" height="100" width="100" style="border:1px solid red"></canvas>
<script>
var c = document.getElementById('c');
alert(c.height + ' ' + c.width);
c.height = 200;
c.width = 200;
alert(c.height + ' ' + c.width);
</script>
You have two options. First, you could simply add a new column with the following:
ALTER TABLE {tableName} ADD COLUMN COLNew {type};
Second, and more complicatedly, but would actually put the column where you want it, would be to rename the table:
ALTER TABLE {tableName} RENAME TO TempOldTable;
Then create the new table with the missing column:
CREATE TABLE {tableName} (name TEXT, COLNew {type} DEFAULT {defaultValue}, qty INTEGER, rate REAL);
And populate it with the old data:
INSERT INTO {tableName} (name, qty, rate) SELECT name, qty, rate FROM TempOldTable;
Then delete the old table:
DROP TABLE TempOldTable;
I'd much prefer the second option, as it will allow you to completely rename everything if need be.
You can add command line arguments to your run configuration. Just edit the run configuration and add -Dmyprop=value (or whatever) to the VM Arguments Box.
As Matt has said, use Console.Write
. I would also recommend explicitly flushing the output, however - I believe WriteLine
does this automatically, but I'd seen oddities when just using Console.Write
and then waiting. So Matt's code becomes:
Console.Write("What is your name? ");
Console.Out.Flush();
var name = Console.ReadLine();
Get the path of running Apache
$ ps -ef | grep apache
apache 12846 14590 0 Oct20 ? 00:00:00 /usr/sbin/apache2
Append -V
argument to the path
$ /usr/sbin/apache2 -V | grep SERVER_CONFIG_FILE
-D SERVER_CONFIG_FILE="/etc/apache2/apache2.conf"
Reference:
http://commanigy.com/blog/2011/6/8/finding-apache-configuration-file-httpd-conf-location
You need to append the new element to existing element's parent before element's next sibling. Like:
var parentGuest = document.getElementById("one");
var childGuest = document.createElement("li");
childGuest.id = "two";
parentGuest.parentNode.insertBefore(childGuest, parentGuest.nextSibling);
Or if you want just append it, then:
var parentGuest = document.getElementById("one");
var childGuest = document.createElement("li");
childGuest.id = "two";
parentGuest.parentNode.appendChild(childGuest);
You can also lock your subscribers dictionary to prevent it from being modified whenever its being looped:
lock (subscribers)
{
foreach (var subscriber in subscribers)
{
//do something
}
}
Yeild
keyword in javaScript function makes it generator,
what is generator in javaScript?
A generator is a function that produces a sequence of results instead of a single value, i.e you generate ?a series of values
Meaning generators helps us work asynchronously with the help iterators, Oh now what the hack iterators are? really?
Iterators are mean through which we are able to access items one at a time
from where iterator help us accessing item one at a time? it help us accessing items through generator functions,
generator functions are those in which we use yeild
keyword, yield keyword help us in pausing and resuming execution of function
here is quick example
function *getMeDrink() {
let question1 = yield 'soda or beer' // execution will pause here because of yield
if (question1 == 'soda') {
return 'here you get your soda'
}
if (question1 == 'beer') {
let question2 = yield 'Whats your age' // execution will pause here because of yield
if (question2 > 18) {
return "ok you are eligible for it"
} else {
return 'Shhhh!!!!'
}
}
}
let _getMeDrink = getMeDrink() // initialize it
_getMeDrink.next().value // "soda or beer"
_getMeDrink.next('beer').value // "Whats your age"
_getMeDrink.next('20').value // "ok you are eligible for it"
_getMeDrink.next().value // undefined
let me brifly explain what is going on
you noticed execution is being paused at each yeild
keyword
and we are able to access first yield
with help of iterator .next()
this iterates to all yield
keywords one at a time and then returns undefined when there is no more yield
keywords left
in simple words you can say yield
keyword is break point where function each time pauses and only resume when call it using iterator
for our case: _getMeDrink.next()
this is example of iterator that is helping us accessing each break point in function
Example of Generators:
async/await
if you see implementation of async/await
you will see generator functions & promises
are used to make async/await
work
please point out any suggestions is welcomed
Try this...to select the option with text myText
$("#my-Select option[text=" + myText +"]").prop("selected", true);
User this function:-
function dateRange($first, $last, $step = '+1 day', $format = 'Y-m-d' ) {
$dates = array();
$current = strtotime($first);
$last = strtotime($last);
while( $current <= $last ) {
$dates[] = date($format, $current);
$current = strtotime($step, $current);
}
return $dates;
}
Usage / function call:-
Increase by one day:-
dateRange($start, $end); //increment is set to 1 day.
Increase by Month:-
dateRange($start, $end, "+1 month");//increase by one month
use third parameter if you like to set date format:-
dateRange($start, $end, "+1 month", "Y-m-d H:i:s");//increase by one month and format is mysql datetime
After using the wrong quotation mark characters in install.packages()
, correcting the quote marks yielded the "cannot remove prior installation" error. Closing and restarting R worked.
If you are on OSX and in case the other solutions didn't work for you (just like me).
You can try uninstalling python3 and upgrade pip3
brew uninstall --ignore-dependencies python3
pip3 install --upgrade pip
This worked for me ;)
cat table |
perl -ne '/\d+\s+(\d+)\s+(\S+)/ && print "".**int**(log($1)/log(2))."\t$2\n";'
You can simply use background
CSS property as follows:
tr:hover{
background: #F1F1F2;
}
Pure4J supports what you are after, in two ways.
First, it provides an @ImmutableValue
annotation, so that you can annotate a class to say that it is immutable. There is a maven plugin to allow you to check that your code actually is immutable (use of final
etc.).
Second, it provides the persistent collections from Clojure, (with added generics) and ensures that elements added to the collections are immutable. Performance of these is apparently pretty good. Collections are all immutable, but implement java collections interfaces (and generics) for inspection. Mutation returns new collections.
Disclaimer: I'm the developer of this
In Windows you can use a Powershell Script with CompareObject
compare-object -IncludeEqual -ExcludeDifferent -PassThru (get-content A.txt) (get-content B.txt)> MATCHING.txt | Out-Null #Find Matching Lines
CompareObject:
There are four options here:
Get virtualenv
set up. Each virtual environment you create will automatically have pip
.
Learn how to install Python packages manually—in most cases it's as simple as download, unzip, python setup.py install
, but not always.
Posting this since React.createClass
is deprecated from react version 16 and the new Javascript ES6 will give you more benefits.
Parent
import React, {Component} from 'react';
import Child from './Child';
export default class Parent extends Component {
es6Function = (value) => {
console.log(value)
}
simplifiedFunction (value) {
console.log(value)
}
render () {
return (
<div>
<Child
es6Function = {this.es6Function}
simplifiedFunction = {this.simplifiedFunction}
/>
</div>
)
}
}
Child
import React, {Component} from 'react';
export default class Child extends Component {
render () {
return (
<div>
<h1 onClick= { () =>
this.props.simplifiedFunction(<SomethingThatYouWantToPassIn>)
}
> Something</h1>
</div>
)
}
}
Simplified stateless child as ES6 constant
import React from 'react';
const Child = () => {
return (
<div>
<h1 onClick= { () =>
this.props.es6Function(<SomethingThatYouWantToPassIn>)
}
> Something</h1>
</div>
)
}
export default Child;
I also faced the same problem, I was using GoogleAdMobAdsSDK-4.1.0.jar
then I tried with GoogleAdMobAdsSDK-4.0.4.jar
now it is working fine, It is problem with jar file as per my experience.
padding-right works for me in Firefox/Chrome on Windows but not in IE. Welcome to the wonderful world of IE standards non-compliance.
See: http://jsfiddle.net/SfPju/466/
HTML
<input type="text" class="foo" value="abcdefghijklmnopqrstuvwxyz"/>
CSS
.foo
{
padding-right: 20px;
}
$("input[name='RadioTest'][value='2']").prop('checked', true);
Yes, the first function has no relationship with an object instance of that constructor function, you can consider it like a 'static method'.
In JavaScript functions are first-class objects, that means you can treat them just like any object, in this case, you are only adding a property to the function object.
The second function, as you are extending the constructor function prototype, it will be available to all the object instances created with the new
keyword, and the context within that function (the this
keyword) will refer to the actual object instance where you call it.
Consider this example:
// constructor function
function MyClass () {
var privateVariable; // private member only available within the constructor fn
this.privilegedMethod = function () { // it can access private members
//..
};
}
// A 'static method', it's just like a normal function
// it has no relation with any 'MyClass' object instance
MyClass.staticMethod = function () {};
MyClass.prototype.publicMethod = function () {
// the 'this' keyword refers to the object instance
// you can access only 'privileged' and 'public' members
};
var myObj = new MyClass(); // new object instance
myObj.publicMethod();
MyClass.staticMethod();
original answer moved to this topic .
You should bind the listener in componentDidMount
, that way it's only created once. You should be able to store the style in state, the listener was probably the cause of performance issues.
Something like this:
componentDidMount: function() {
window.addEventListener('scroll', this.handleScroll);
},
componentWillUnmount: function() {
window.removeEventListener('scroll', this.handleScroll);
},
handleScroll: function(event) {
let scrollTop = event.srcElement.body.scrollTop,
itemTranslate = Math.min(0, scrollTop/3 - 60);
this.setState({
transform: itemTranslate
});
},
You can declare the field as a first-class attribute of your form and just set choices dynamically:
class WaypointForm(forms.Form):
waypoints = forms.ChoiceField(choices=[])
def __init__(self, user, *args, **kwargs):
super().__init__(*args, **kwargs)
waypoint_choices = [(o.id, str(o)) for o in Waypoint.objects.filter(user=user)]
self.fields['waypoints'].choices = waypoint_choices
You can also use a ModelChoiceField and set the queryset on init in a similar manner.
For Mysql, we have a limitation. In the driver Mysql doc, we have :
The following are some known issues and limitations for MySQL Connector/J: When Connector/J retrieves timestamps for a daylight saving time (DST) switch day using the getTimeStamp() method on the result set, some of the returned values might be wrong. The errors can be avoided by using the following connection options when connecting to a database:
useTimezone=true
useLegacyDatetimeCode=false
serverTimezone=UTC
So, when we do not use this parameters and we call setTimestamp or getTimestamp
with calendar or without calendar, we have the timestamp in the jvm timezone.
Example :
The jvm timezone is GMT+2. In the database, we have a timestamp : 1461100256 = 19/04/16 21:10:56,000000000 GMT
Properties props = new Properties();
props.setProperty("user", "root");
props.setProperty("password", "");
props.setProperty("useTimezone", "true");
props.setProperty("useLegacyDatetimeCode", "false");
props.setProperty("serverTimezone", "UTC");
Connection con = DriverManager.getConnection(conString, props);
......
Calendar nowGMT = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
Calendar nowGMTPlus4 = Calendar.getInstance(TimeZone.getTimeZone("GMT+4"));
......
rs.getTimestamp("timestampColumn");//Oracle driver convert date to jvm timezone and Mysql convert date to GMT (specified in the parameter)
rs.getTimestamp("timestampColumn", nowGMT);//convert date to GMT
rs.getTimestamp("timestampColumn", nowGMTPlus4);//convert date to GMT+4 timezone
The first method returns : 1461100256000 = 19/04/2016 - 21:10:56 GMT
The second method returns : 1461100256000 = 19/04/2016 - 21:10:56 GMT
The third method returns : 1461085856000 = 19/04/2016 - 17:10:56 GMT
Instead of Oracle, when we use the same calls, we have :
The first method returns : 1461093056000 = 19/04/2016 - 19:10:56 GMT
The second method returns : 1461100256000 = 19/04/2016 - 21:10:56 GMT
The third method returns : 1461085856000 = 19/04/2016 - 17:10:56 GMT
NB : It is not necessary to specify the parameters for Oracle.
Python's mmap module will allow you to insert into a file. The following sample shows how it can be done in Unix (Windows mmap may be different). Note that this does not handle all error conditions and you might corrupt or lose the original file. Also, this won't handle unicode strings.
import os
from mmap import mmap
def insert(filename, str, pos):
if len(str) < 1:
# nothing to insert
return
f = open(filename, 'r+')
m = mmap(f.fileno(), os.path.getsize(filename))
origSize = m.size()
# or this could be an error
if pos > origSize:
pos = origSize
elif pos < 0:
pos = 0
m.resize(origSize + len(str))
m[pos+len(str):] = m[pos:origSize]
m[pos:pos+len(str)] = str
m.close()
f.close()
It is also possible to do this without mmap with files opened in 'r+' mode, but it is less convenient and less efficient as you'd have to read and temporarily store the contents of the file from the insertion position to EOF - which might be huge.
From RFC 2616 (the Hypertext Transfer Protocol Specification):
10.3.3 302 Found The requested resource resides temporarily under a different URI. Since the redirection might be altered on occasion, the client SHOULD continue to use the Request-URI for future requests. This response is only cacheable if indicated by a Cache-Control or Expires header field. The temporary URI SHOULD be given by the Location field in the response. Unless the request method was HEAD, the entity of the response SHOULD contain a short hypertext note with a hyperlink to the new URI(s).
Source:
my datagridview is editonEnter mode . so it refresh only after i leave cell or after i revisit and exit cell twice.
to trigger this iimedately . i unfocus from datagridview . then refocus it.
this.SelectNextControl(dgv1,true,true,false,true);
Application.DoEvents(); //this does magic
dgv1.Focus();
Diogo
Justin has given you some very fine tips :)
You will also get that error if the cell where you are performing the calculation has an error resulting from a formula.
For example if Cell A1 has #DIV/0! error then you will get "Excel VBA Run-time error '13' Type mismatch" when performing this code
Sheets("Sheet1").Range("A1").Value - 1
I have made some slight changes to your code. Could you please test it for me? Copy the code with the line numbers as I have deliberately put them there.
Option Explicit
Sub Sample()
Dim ws As Worksheet
Dim x As Integer, i As Integer, a As Integer, y As Integer
Dim name As String
Dim lastRow As Long
10 On Error GoTo Whoa
20 Application.ScreenUpdating = False
30 name = InputBox("Please insert the name of the sheet")
40 If Len(Trim(name)) = 0 Then Exit Sub
50 Set ws = Sheets(name)
60 With ws
70 If Not IsError(.Range("BE4").Value) Then
80 x = Val(.Range("BE4").Value)
90 Else
100 MsgBox "Please check the value of cell BE4. It seems to have an error"
110 GoTo LetsContinue
120 End If
130 .Range("BF4").Value = x
140 lastRow = .Range("BE" & Rows.Count).End(xlUp).Row
150 For i = 5 To lastRow
160 If IsError(.Range("BE" & i)) Then
170 MsgBox "Please check the value of cell BE" & i & ". It seems to have an error"
180 GoTo LetsContinue
190 End If
200 a = 0: y = Val(.Range("BE" & i))
210 If y <> x Then
220 If y <> 0 Then
230 If y = 3 Then
240 a = x
250 .Range("BF" & i) = Val(.Range("BE" & i)) - x
260 x = Val(.Range("BE" & i)) - x
270 End If
280 .Range("BF" & i) = Val(.Range("BE" & i)) - a
290 x = Val(.Range("BE" & i)) - a
300 Else
310 .Range("BF" & i).ClearContents
320 End If
330 Else
340 .Range("BF" & i).ClearContents
350 End If
360 Next i
370 End With
LetsContinue:
380 Application.ScreenUpdating = True
390 Exit Sub
Whoa:
400 MsgBox "Error Description :" & Err.Description & vbNewLine & _
"Error at line : " & Erl
410 Resume LetsContinue
End Sub
Python: Reads image blob.jpg and performs blob detection with different parameters.
#!/usr/bin/python
# Standard imports
import cv2
import numpy as np;
# Read image
im = cv2.imread("blob.jpg")
# Setup SimpleBlobDetector parameters.
params = cv2.SimpleBlobDetector_Params()
# Change thresholds
params.minThreshold = 10
params.maxThreshold = 200
# Filter by Area.
params.filterByArea = True
params.minArea = 1500
# Filter by Circularity
params.filterByCircularity = True
params.minCircularity = 0.1
# Filter by Convexity
params.filterByConvexity = True
params.minConvexity = 0.87
# Filter by Inertia
params.filterByInertia = True
params.minInertiaRatio = 0.01
# Create a detector with the parameters
detector = cv2.SimpleBlobDetector(params)
# Detect blobs.
keypoints = detector.detect(im)
# Draw detected blobs as red circles.
# cv2.DRAW_MATCHES_FLAGS_DRAW_RICH_KEYPOINTS ensures
# the size of the circle corresponds to the size of blob
im_with_keypoints = cv2.drawKeypoints(im, keypoints, np.array([]), (0,0,255), cv2.DRAW_MATCHES_FLAGS_DRAW_RICH_KEYPOINTS)
# Show blobs
cv2.imshow("Keypoints", im_with_keypoints)
cv2.waitKey(0)
C++: Reads image blob.jpg and performs blob detection with different parameters.
#include "opencv2/opencv.hpp"
using namespace cv;
using namespace std;
int main(int argc, char** argv)
{
// Read image
#if CV_MAJOR_VERSION < 3 // If you are using OpenCV 2
Mat im = imread("blob.jpg", CV_LOAD_IMAGE_GRAYSCALE);
#else
Mat im = imread("blob.jpg", IMREAD_GRAYSCALE);
#endif
// Setup SimpleBlobDetector parameters.
SimpleBlobDetector::Params params;
// Change thresholds
params.minThreshold = 10;
params.maxThreshold = 200;
// Filter by Area.
params.filterByArea = true;
params.minArea = 1500;
// Filter by Circularity
params.filterByCircularity = true;
params.minCircularity = 0.1;
// Filter by Convexity
params.filterByConvexity = true;
params.minConvexity = 0.87;
// Filter by Inertia
params.filterByInertia = true;
params.minInertiaRatio = 0.01;
// Storage for blobs
std::vector<KeyPoint> keypoints;
#if CV_MAJOR_VERSION < 3 // If you are using OpenCV 2
// Set up detector with params
SimpleBlobDetector detector(params);
// Detect blobs
detector.detect(im, keypoints);
#else
// Set up detector with params
Ptr<SimpleBlobDetector> detector = SimpleBlobDetector::create(params);
// Detect blobs
detector->detect(im, keypoints);
#endif
// Draw detected blobs as red circles.
// DrawMatchesFlags::DRAW_RICH_KEYPOINTS flag ensures
// the size of the circle corresponds to the size of blob
Mat im_with_keypoints;
drawKeypoints(im, keypoints, im_with_keypoints, Scalar(0, 0, 255), DrawMatchesFlags::DRAW_RICH_KEYPOINTS);
// Show blobs
imshow("keypoints", im_with_keypoints);
waitKey(0);
}
The answer has been copied from this tutorial I wrote at LearnOpenCV.com explaining various parameters of SimpleBlobDetector. You can find additional details about the parameters in the tutorial.
I had the same error. Setting allow_url_include = On
in php.ini
fixed it for me.
After some searching and trawling through some old stackoverflow questions I've found a solution in a previously asked SO question:
Here's the code that I ended up using.
// Create a trust manager that does not validate certificate chains
TrustManager[] trustAllCerts = new TrustManager[]{new X509TrustManager(){
public X509Certificate[] getAcceptedIssuers(){return null;}
public void checkClientTrusted(X509Certificate[] certs, String authType){}
public void checkServerTrusted(X509Certificate[] certs, String authType){}
}};
// Install the all-trusting trust manager
try {
SSLContext sc = SSLContext.getInstance("TLS");
sc.init(null, trustAllCerts, new SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
} catch (Exception e) {
;
}
sudo apt-get install build-essential
is enough to get it working.
A cleaner approach:
function Size($path)
{
$bytes = sprintf('%u', filesize($path));
if ($bytes > 0)
{
$unit = intval(log($bytes, 1024));
$units = array('B', 'KB', 'MB', 'GB');
if (array_key_exists($unit, $units) === true)
{
return sprintf('%d %s', $bytes / pow(1024, $unit), $units[$unit]);
}
}
return $bytes;
}
Delete C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\