There's more than one way to do this obviously.
# This will find files recursively (you can limit it by using some 'find' parameters.
# see the man pages
# Final backslash required for exec example to work
find . -name '*.gz' -exec gunzip '{}' \;
# This will do it only in the current directory
for a in *.gz; do gunzip $a; done
I'm sure there's other ways as well, but this is probably the simplest.
And to remove it, just do a rm -rf *.gz
in the applicable directory
> use the -O option. [...] If the tar file is corrupt, the process will abort with an error.
Sometimes yes, but sometimes not. Let's see an example of a corrupted file:
echo Pete > my_name
tar -cf my_data.tar my_name
# // Simulate a corruption
sed < my_data.tar 's/Pete/Fool/' > my_data_now.tar
# // "my_data_now.tar" is the corrupted file
tar -xvf my_data_now.tar -O
It shows:
my_name
Fool
Even if you execute
echo $?
tar said that there was no error:
0
but the file was corrupted, it has now "Fool" instead of "Pete".
IE<=8 simply doesn't have an indexOf()
method for arrays.
If you need indexOf
in IE<=8, you should consider using the following polyfill, which is recommended at the MDN :
if (!Array.prototype.indexOf) {
Array.prototype.indexOf = function(searchElement, fromIndex) {
var k;
if (this == null) {
throw new TypeError('"this" is null or not defined');
}
var o = Object(this);
var len = o.length >>> 0;
if (len === 0) {
return -1;
}
var n = +fromIndex || 0;
if (Math.abs(n) === Infinity) {
n = 0;
}
if (n >= len) {
return -1;
}
k = Math.max(n >= 0 ? n : len - Math.abs(n), 0);
while (k < len) {
if (k in o && o[k] === searchElement) {
return k;
}
k++;
}
return -1;
};
}
Minified :
Array.prototype.indexOf||(Array.prototype.indexOf=function(r,t){var n;if(null==this)throw new TypeError('"this" is null or not defined');var e=Object(this),i=e.length>>>0;if(0===i)return-1;var a=+t||0;if(Math.abs(a)===1/0&&(a=0),a>=i)return-1;for(n=Math.max(a>=0?a:i-Math.abs(a),0);i>n;){if(n in e&&e[n]===r)return n;n++}return-1});
Although the existing answers are valid approaches , they are antiquated . HttpClient is a modern interface for working with RESTful web services . Check the examples section of the page in the link , it has a very straightforward use case for an asynchronous HTTP GET .
using (var client = new System.Net.Http.HttpClient())
{
return await client.GetStringAsync("https://reqres.in/api/users/3"); //uri
}
pdf validation with OPEN validator:
DROID (Digital Record Object Identification) http://sourceforge.net/projects/droid/
JHOVE - JSTOR/Harvard Object Validation Environment http://hul.harvard.edu/jhove/
The problem is that you aren't correctly escaping the input string, try:
echo "\"member\":\"time\"" | grep -e "member\""
Alternatively, you can use unescaped double quotes within single quotes:
echo '"member":"time"' | grep -e 'member"'
It's a matter of preference which you find clearer, although the second approach prevents you from nesting your command within another set of single quotes (e.g. ssh 'cmd'
).
If you call it the way you had it...
$('.leadtoscore').click(add_event('shot'));
...you would need to have add_event()
return a function, like...
function add_event(param) {
return function() {
// your code that does something with param
alert( param );
};
}
The function is returned and used as the argument for .click()
.
Just for those who want to get $setPristine
without having to upgrade to v1.1.x, here is the function I used to simulate the $setPristine
function. I was reluctant to use the v1.1.5 because one of the AngularUI components I used is no compatible.
var setPristine = function(form) {
if (form.$setPristine) {//only supported from v1.1.x
form.$setPristine();
} else {
/*
*Underscore looping form properties, you can use for loop too like:
*for(var i in form){
* var input = form[i]; ...
*/
_.each(form, function (input) {
if (input.$dirty) {
input.$dirty = false;
}
});
}
};
Note that it ONLY makes $dirty
fields clean and help changing the 'show error' condition like $scope.myForm.myField.$dirty && $scope.myForm.myField.$invalid
.
Other parts of the form object (like the css classes) still need to consider, but this solve my problem: hide error messages.
GregorianCalendar c = GregorianCalendar.from((LocalDate.parse("2016-06-22")).atStartOfDay(ZoneId.systemDefault()));
XMLGregorianCalendar date2 = DatatypeFactory.newInstance().newXMLGregorianCalendar(c);
This should unstage a <file> for you (without removing or otherwise modifying the file):
git reset <file>
Provided you're working in node or a browser with BigInt
support, this version cuts costs by saving the expensive string construction for the very end:
const zero = 0n
const shift = 8n
function asciiToBinary (str) {
const len = str.length
let n = zero
for (let i = 0; i < len; i++) {
n = (n << shift) + BigInt(str.charCodeAt(i))
}
return n.toString(2).padStart(len * 8, 0)
}
It's about twice as fast as the other solutions mentioned here including this simple es6+ implementation:
const toBinary = s => [...s]
.map(x => x
.codePointAt()
.toString(2)
.padStart(8,0)
)
.join('')
If you need to handle unicode characters, here's this guy:
const zero = 0n
const shift = 8n
const bigShift = 16n
const byte = 255n
function unicodeToBinary (str) {
const len = str.length
let n = zero
for (let i = 0; i < len; i++) {
const bits = BigInt(str.codePointAt(i))
n = (n << (bits > byte ? bigShift : shift)) + bits
}
const bin = n.toString(2)
return bin.padStart(8 * Math.ceil(bin.length / 8), 0)
}
If you're using a NFS, "test" is a better solution, because you can add a timeout to it, in case your NFS is down:
time timeout 3 test -f
/nfs/my_nfs_is_currently_down
real 0m3.004s <<== timeout is taken into account
user 0m0.001s
sys 0m0.004s
echo $?
124 <= 124 means the timeout has been reached
A "[ -e my_file ]" construct will freeze until the NFS is functional again:
if [ -e /nfs/my_nfs_is_currently_down ]; then echo "ok" else echo "ko" ; fi
<no answer from the system, my session is "frozen">
You almost got it. It should be this:
<input type="radio" name="group1" id="r1" value="1" />_x000D_
<label for="r1"> button one</label>
_x000D_
The value in for
should be the id of the element you are labeling.
I have used this to some of my projects before and was able to solved most of my COLLATION problems. (especially on JOINS XD) Hope some of you find it useful.
To use, just export results to delimited text (probably new line '\n')
-- EACH TABLE
SELECT CONCAT('ALTER TABLE ', TABLE_NAME,'
CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;') AS 'USE DATABASE_NAME
;'
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA = 'DATABASE_NAME'
AND TABLE_TYPE LIKE 'BASE TABLE'
-- EACH COLUMN
SELECT CONCAT('ALTER TABLE ', TABLE_NAME,'
MODIFY COLUMN ', COLUMN_NAME,'
', DATA_TYPE, IF(CHARACTER_MAXIMUM_LENGTH IS NULL OR DATA_TYPE LIKE 'longtext', '', CONCAT('(',CHARACTER_MAXIMUM_LENGTH,')')),' COLLATE utf8mb4_unicode_ci;') AS 'USE DATABASE_NAME
;'
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA = 'DATABASE_NAME' AND (SELECT INFORMATION_SCHEMA.TABLES.TABLE_TYPE FROM INFORMATION_SCHEMA.TABLES WHERE INFORMATION_SCHEMA.TABLES.TABLE_SCHEMA = INFORMATION_SCHEMA.COLUMNS.TABLE_SCHEMA AND INFORMATION_SCHEMA.TABLES.TABLE_NAME = INFORMATION_SCHEMA.COLUMNS.TABLE_NAME LIMIT 1) LIKE 'BASE TABLE' AND DATA_TYPE IN ('char','varchar') /* include other types if necessary */
In my case, I have just install express-status-monitor to get rid of this error
here are the settings
install express-status-monitor
npm i express-status-monitor --save
const expressStatusMonitor = require('express-status-monitor');
app.use(expressStatusMonitor({
websocket: io,
port: app.get('port')
}));
In terms of performance you should initialize the vector with use of reserve()
combined with push_back()
functions like in the example below:
const int numberOfElements = 10;
std::vector<int> data;
data.reserve(numberOfElements);
for(int i = 0; i < numberOfElements; i++)
data.push_back(i);
All the std::fill
, std::generate
, etc. are operating on range of existing vector content, and, therefore the vector must be filled with some data earlier. Even doing the following: std::vector<int> data(10);
creates a vector with all elements set to its default value (i.e. 0 in case of int
).
The above code avoids to initialize vector content before filling it with the data you really want. Performance of this solution is well visible on large data sets.
It does includes boundaries.
declare @startDate date = cast('15-NOV-2016' as date)
declare @endDate date = cast('30-NOV-2016' as date)
create table #test (c1 date)
insert into #test values(cast('15-NOV-2016' as date))
insert into #test values(cast('20-NOV-2016' as date))
insert into #test values(cast('30-NOV-2016' as date))
select * from #test where c1 between @startDate and @endDate
drop table #test
RESULT c1
2016-11-15
2016-11-20
2016-11-30
declare @r1 int = 10
declare @r2 int = 15
create table #test1 (c1 int)
insert into #test1 values(10)
insert into #test1 values(15)
insert into #test1 values(11)
select * from #test1 where c1 between @r1 and @r2
drop table #test1
RESULT c1
10
11
15
Option 1 You can set a Slack channel to automatically delete messages after 1 day, but it's a little hidden. First, you have to go to your Slack Workspace Settings, Message Retention & Deletion, and check "Let workspace members override these settings". After that, in the Slack client you can open a channel, click the gear, and click "Edit message retention..."
Option 2 The slack-cleaner command line tool that others have mentioned.
Option 3 Below is a little Python script that I use to clear Private channels. Can be a good starting point if you want more programmatic control of deletion. Unfortunately Slack has no bulk-delete API, and they rate-limit the individual delete to 50 per minute, so it unavoidably takes a long time.
# -*- coding: utf-8 -*-
"""
Requirement: pip install slackclient
"""
import multiprocessing.dummy, ctypes, time, traceback, datetime
from slackclient import SlackClient
legacy_token = raw_input("Enter token of an admin user. Get it from https://api.slack.com/custom-integrations/legacy-tokens >> ")
slack_client = SlackClient(legacy_token)
name_to_id = dict()
res = slack_client.api_call(
"groups.list", # groups are private channels, conversations are public channels. Different API.
exclude_members=True,
)
print ("Private channels:")
for c in res['groups']:
print(c['name'])
name_to_id[c['name']] = c['id']
channel = raw_input("Enter channel name to clear >> ").strip("#")
channel_id = name_to_id[channel]
pool=multiprocessing.dummy.Pool(4) #slack rate-limits the API, so not much benefit to more threads.
count = multiprocessing.dummy.Value(ctypes.c_int,0)
def _delete_message(message):
try:
success = False
while not success:
res= slack_client.api_call(
"chat.delete",
channel=channel_id,
ts=message['ts']
)
success = res['ok']
if not success:
if res.get('error')=='ratelimited':
# print res
time.sleep(float(res['headers']['Retry-After']))
else:
raise Exception("got error: %s"%(str(res.get('error'))))
count.value += 1
if count.value % 50==0:
print(count.value)
except:
traceback.print_exc()
retries = 3
hours_in_past = int(raw_input("How many hours in the past should messages be kept? Enter 0 to delete them all. >> "))
latest_timestamp = ((datetime.datetime.utcnow()-datetime.timedelta(hours=hours_in_past)) - datetime.datetime(1970,1,1)).total_seconds()
print("deleting messages...")
while retries > 0:
#see https://api.slack.com/methods/conversations.history
res = slack_client.api_call(
"groups.history",
channel=channel_id,
count=1000,
latest=latest_timestamp,)#important to do paging. Otherwise Slack returns a lot of already-deleted messages.
if res['messages']:
latest_timestamp = min(float(m['ts']) for m in res['messages'])
print datetime.datetime.utcfromtimestamp(float(latest_timestamp)).strftime("%r %d-%b-%Y")
pool.map(_delete_message, res['messages'])
if not res["has_more"]: #Slack API seems to lie about this sometimes
print ("No data. Sleeping...")
time.sleep(1.0)
retries -= 1
else:
retries=10
print("Done.")
Note, that script will need modification to list & clear public channels. The API methods for those are channels.* instead of groups.*
Another easy option to show Dialog is to use stacked_services package
_dialogService.showDialog(
title: "Title",
description: "Dialog message Tex",
);
});
If the file you are working on is not so big, and temporarily storing it in a variable is no problem, then you can use Bash string substitution on the whole file at once - there's no need to go over it line by line:
file_contents=$(</tmp/file.txt)
echo "${file_contents//abc/XYZ}" > /tmp/file.txt
The whole file contents will be treated as one long string, including linebreaks.
XYZ can be a variable eg $replacement
, and one advantage of not using sed here is that you need not be concerned that the search or replace string might contain the sed pattern delimiter character (usually, but not necessarily, /). A disadvantage is not being able to use regular expressions or any of sed's more sophisticated operations.
Using top: 40px
and bottom: 40px
(assuming your footer is also 40px) with no defined height, you can get this to work.
.header {
width: 100%;
height: 40px;
position: absolute;
top: 0;
background-color:red;
}
.mainBody {
width: 100%;
top: 40px;
bottom: 40px;
position: absolute;
background-color: gray;
}
.footer {
width: 100%;
height: 40px;
position: absolute;
bottom: 0;
background-color: blue;
}
This should work
<a href="#" onclick="function hi(){alert('Hi!')};hi()">click</a>
You may inline any javascript inside the onclick as if you were assigning the method through javascript. I think is just a matter of making code cleaner keeping your js inside a script block
To add to the other excellent advice, I'd also be mindful of the following:
For some CPUs (e.g. Intel Core i5 range with TurboBoost), the temperature (and number of cores currently being used, as well as thier utilisation percent) affects the clock speed. Since CPUs are dynamically clocked, this can affect your results. For example, if you have a single-threaded application, the maximum clock speed (with TurboBoost) is higher than for an application using all cores. This can therefore interfere with comparisons of single and multi-threaded performance on some systems. Bear in mind that the temperature and volatages also affect how long Turbo frequency is maintained.
Perhaps a more fundamentally important aspect that you have direct control over: make sure you're measuring the right thing! For example, if you're using System.nanoTime()
to benchmark a particular bit of code, put the calls to the assignment in places that make sense to avoid measuring things which you aren't interested in. For example, don't do:
long startTime = System.nanoTime();
//code here...
System.out.println("Code took "+(System.nanoTime()-startTime)+"nano seconds");
Problem is you're not immediately getting the end time when the code has finished. Instead, try the following:
final long endTime, startTime = System.nanoTime();
//code here...
endTime = System.nanoTime();
System.out.println("Code took "+(endTime-startTime)+"nano seconds");
Note that, in windows, the pgpass.conf
file must be in the following folder:
%APPDATA%\postgresql\pgpass.conf
if there's no postgresql
folder inside the %APPDATA%
folder, create it.
the pgpass.conf
file content is something like:
localhost:5432:dbname:dbusername:dbpassword
cheers
It will convert negative array to positive or vice versa
function negateOrPositive(arr) {
arr.map(res => -res)
};
Create your partial view something like:
@model YourModelType
<div>
<!-- HTML to render your object -->
</div>
Then in your view use:
@Html.Partial("YourPartialViewName", Model)
If you do not want a strongly typed partial view remove the @model YourModelType
from the top of the partial view and it will default to a dynamic
type.
Update
The default view engine will search for partial views in the same folder as the view calling the partial and then in the ~/Views/Shared folder. If your partial is located in a different folder then you need to use the full path. Note the use of ~/
in the path below.
@Html.Partial("~/Views/Partials/SeachResult.cshtml", Model)
Setting cookies for another domain is not possible.
If you want to pass data to another domain, you can encode this into the url.
a.com -> b.com/redirect?info=some+info (and set cookie) -> b.com/other+page
In my case with Angular 8. I wanted to toggle enable/disable of the input depending on the condition.
[attr.disabled]
didn't work for me so here is my solution.
I removed [attr.disabled]
from HTML and in the component function performed this check:
if (condition) {
this.form.controls.myField.disable();
} else {
this.form.controls.myField.enable();
}
Can create a procedure also to create calendar table with timestmap different from day. If you want a table for each quarter
e.g.
2019-01-22 08:45:00
2019-01-22 09:00:00
2019-01-22 09:15:00
2019-01-22 09:30:00
2019-01-22 09:45:00
2019-01-22 10:00:00
you can use
CREATE DEFINER=`root`@`localhost` PROCEDURE `generate_calendar_table`()
BEGIN
select unix_timestamp('2014-01-01 00:00:00') into @startts;
select unix_timestamp('2025-01-01 00:00:00') into @endts;
if ( @startts < @endts ) then
DROP TEMPORARY TABLE IF EXISTS calendar_table_tmp;
CREATE TEMPORARY TABLE calendar_table_tmp (ts int, dt datetime);
WHILE ( @startts < @endts)
DO
SET @startts = @startts + 900;
INSERT calendar_table_tmp VALUES (@startts, from_unixtime(@startts));
END WHILE;
END if;
END
and then manipulate through
select ts, dt from calendar_table_tmp;
that give you also ts
'1548143100', '2019-01-22 08:45:00'
'1548144000', '2019-01-22 09:00:00'
'1548144900', '2019-01-22 09:15:00'
'1548145800', '2019-01-22 09:30:00'
'1548146700', '2019-01-22 09:45:00'
'1548147600', '2019-01-22 10:00:00'
from here you can start to add other information such as
select ts, dt, weekday(dt) as wd from calendar_table_tmp;
or create a real table with create table statement
Had a similar issue. Here are the steps used to setup SSH keys and forwarding on the Mac. Made these notes for myself - may help someone... check against your config.
The assumption here is there are no keys setup. If you already have the keys setup skip this section.
$ ssh-keygen -t rsa -b 4096
Generating public/private rsa key pair.
Enter a file in which to save the key (/Users/you/.ssh/id_rsa): [Press enter] Enter passphrase (empty for no passphrase): [Type a passphrase] Enter same passphrase again: [Type passphrase again]
Modify ~/.ssh/config adding the entry for the key file:
~/.ssh/config should look similar to:
Host *
AddKeysToAgent yes
UseKeychain yes
IdentityFile ~/.ssh/id_rsa
Store the private key in the keychain:
$ ssh-add -K ~/.ssh/id_rsa
Go test it now with: ssh -A username@yourhostname
Should forward your key to yourhostname. Assuming your keys are added on you should connect without issue.
I agree with the others who said that there is no simple way to distribute these settings.
For Eclipse: ask your colleagues to set the following:
-Xmx1024m
After that all test will run with -Xmx1024m
but unfortunately you have set it in every Eclipse installation. Maybe you could create a custom Eclipse package which contains this setting and give it to you co-workers.
The following working process also could help: If the IDE cannot run a test the developer should check that Maven could run this test or not.
To remove the flutter debug banner, there are several possibilities :
1- The first one is to use the debugShowCheckModeBanner property in your MaterialApp widget .
Code :
MaterialApp(
debugShowCheckedModeBanner: false,
)
And then do a hot reload.
2-The second possibility is to hide debug mode banner in Flutter Inspector if you use Android Studio or IntelliJ IDEA .
3- The third possibility is to use Dart DevTools .
You'd need to use return values.
DECLARE @SelectedValue int
CREATE PROCEDURE GetMyInt (@MyIntField int OUTPUT)
AS
SELECT @MyIntField = MyIntField FROM MyTable WHERE MyPrimaryKeyField = 1
Then you call it like this:
EXEC GetMyInt OUTPUT @SelectedValue
random.sample implement it.
>>> random.sample([1, 2, 3, 4, 5], 3) # Three samples without replacement
[4, 1, 5]
Use String.Format
Pre C# 6.0
string data = "FlightA, B,C,D";
var str = String.Format("Hi We have these flights for you: {0}. Which one do you want?", data);
C# 6.0 -- String Interpolation
string data = "FlightA, B,C,D";
var str = $"Hi We have these flights for you: {data}. Which one do you want?";
Here's a function I wrote which works similarly to the Unix time
command:
function time {
Param(
[Parameter(Mandatory=$true)]
[string]$command,
[switch]$quiet = $false
)
$start = Get-Date
try {
if ( -not $quiet ) {
iex $command | Write-Host
} else {
iex $command > $null
}
} finally {
$(Get-Date) - $start
}
}
Source: https://gist.github.com/bender-the-greatest/741f696d965ed9728dc6287bdd336874
A bit of fun with a sleepy generator.
The question is about time delay. It can be fixed time, but in some cases we might need a delay measured since last time. Here is one possible solution:
The situation can be, we want to do something as regularly as possible and we do not want to bother with all the last_time
, next_time
stuff all around our code.
The following code (sleepy.py) defines a buzzergen
generator:
import time
from itertools import count
def buzzergen(period):
nexttime = time.time() + period
for i in count():
now = time.time()
tosleep = nexttime - now
if tosleep > 0:
time.sleep(tosleep)
nexttime += period
else:
nexttime = now + period
yield i, nexttime
from sleepy import buzzergen
import time
buzzer = buzzergen(3) # Planning to wake up each 3 seconds
print time.time()
buzzer.next()
print time.time()
time.sleep(2)
buzzer.next()
print time.time()
time.sleep(5) # Sleeping a bit longer than usually
buzzer.next()
print time.time()
buzzer.next()
print time.time()
And running it we see:
1400102636.46
1400102639.46
1400102642.46
1400102647.47
1400102650.47
We can also use it directly in a loop:
import random
for ring in buzzergen(3):
print "now", time.time()
print "ring", ring
time.sleep(random.choice([0, 2, 4, 6]))
And running it we might see:
now 1400102751.46
ring (0, 1400102754.461676)
now 1400102754.46
ring (1, 1400102757.461676)
now 1400102757.46
ring (2, 1400102760.461676)
now 1400102760.46
ring (3, 1400102763.461676)
now 1400102766.47
ring (4, 1400102769.47115)
now 1400102769.47
ring (5, 1400102772.47115)
now 1400102772.47
ring (6, 1400102775.47115)
now 1400102775.47
ring (7, 1400102778.47115)
As we see, this buzzer is not too rigid and allow us to catch up with regular sleepy intervals even if we oversleep and get out of regular schedule.
public static string NumberToWords(int number)
{
if (number == 0)
return "zero";
if (number < 0)
return "minus " + NumberToWords(Math.Abs(number));
string words = "";
if ((number / 1000000) > 0)
{
words += NumberToWords(number / 1000000) + " million ";
number %= 1000000;
}
if ((number / 1000) > 0)
{
words += NumberToWords(number / 1000) + " thousand ";
number %= 1000;
}
if ((number / 100) > 0)
{
words += NumberToWords(number / 100) + " hundred ";
number %= 100;
}
if (number > 0)
{
if (words != "")
words += "and ";
var unitsMap = new[] { "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen" };
var tensMap = new[] { "zero", "ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety" };
if (number < 20)
words += unitsMap[number];
else
{
words += tensMap[number / 10];
if ((number % 10) > 0)
words += "-" + unitsMap[number % 10];
}
}
return words;
}
If the verification logic is non-trivial, it will be messy to write a large lambda method (as your example shows). You could put all the test statements in a separate method, but I don't like to do this because it disrupts the flow of reading the test code.
Another option is to use a callback on the Setup call to store the value that was passed into the mocked method, and then write standard Assert
methods to validate it. For example:
// Arrange
MyObject saveObject;
mock.Setup(c => c.Method(It.IsAny<int>(), It.IsAny<MyObject>()))
.Callback<int, MyObject>((i, obj) => saveObject = obj)
.Returns("xyzzy");
// Act
// ...
// Assert
// Verify Method was called once only
mock.Verify(c => c.Method(It.IsAny<int>(), It.IsAny<MyObject>()), Times.Once());
// Assert about saveObject
Assert.That(saveObject.TheProperty, Is.EqualTo(2));
Your file should directly be under the project folder, and not inside any other sub-folder.
If the folder of your project is named for e.g. AProject
, it should be in the same place as your src
folder.
Aproject
src
word.txt
Hope it helps someone on earth. In my case jQuery and $ were available but not when the plugin bootstrapped so I wrapped everything inside a setTimeout. Wrapping inside setTimeout helped me fix the error:
setTimeout(() => {
/** Your code goes here */
!function(t, e) {
}(window);
})
std::string input="1,1,1,1,2,1,1,1,0";
std::vector<long> output;
for(std::string::size_type p0=0,p1=input.find(',');
p1!=std::string::npos || p0!=std::string::npos;
(p0=(p1==std::string::npos)?p1:++p1),p1=input.find(',',p0) )
output.push_back( strtol(input.c_str()+p0,NULL,0) );
It would be a good idea to check for conversion errors in strtol()
, of course. Maybe the code may benefit from some other error checks as well.
info
is a pointer to a dictionary - you keep adding the same pointer to your list contact
.
Insert info = {}
into the loop and it should solve the problem:
...
content = []
for iframe in soup.find_all('iframe'):
info = {}
info['src'] = iframe.get('src')
info['height'] = iframe.get('height')
info['width'] = iframe.get('width')
...
For Upload large size data in using phpmyadmin Do following steps.
max_execution_time = 259200
max_input_time = 259200
memory_limit = 1000M
upload_max_filesize = 750M
post_max_size = 750M
than after restart wamp server or restart all services Now Upload
data using import function in phymyadmin. Apply second step if
till not upload data.$cfg['ExecTimeLimit'] = 300;
Replace to $cfg['ExecTimeLimit'] = 0;
You can also upload large size database using MySQL Console as below.
root
in popupUSE DATABASENAME
SOURCE C:\FOLDER\database.sql
Note: You can't load a compressed database file e.g. database.sql.zip
or database.sql.gz
, you have to extract it first. Otherwise the console will just crash.
Every answer requires changing of the import statements.
If you want to be able to use:
import {a} from './my-module' // a === 1
import * as myModule from './my-module' // myModule.a === 1
as in the question, and in your my-module
you have everything that you need to export in one object (which can be useful e.g. if you want to validate the exported values with Joi or JSON Schema) then your my-module
would have to be either:
let values = { a: 1, b: 2, c: 3 }
let {a, b, c} = values;
export {a, b, c};
Or:
let values = { a: 1, b: 2, c: 3 }
export let {a, b, c} = values;
Not pretty, but it compiles to what you need.
See: Babel example
window.location.href, this as saved my life in webview from Android 5.1. The page don't reload with location.reload() in this version from Android.
try out this if you want to assign value to object and it is showing this error in angular..
crate object in construtor
this.modelObj = new Model();
//<---------- after declaring object above
Yes, there are tons of software available to decompile a .apk file.
Recently, I had compiled an ultimate list of 47 best APK decompilers on my website. I arranged them into 4 different sections.
I hope this collection will be helpful to you.
The simplest solution I have found, taking inspiration by responses above is
class SignalHandler:
def __init__(self):
# register signal handlers
signal.signal(signal.SIGINT, self.exit_gracefully)
signal.signal(signal.SIGTERM, self.exit_gracefully)
self.logger = Logger(level=ERROR)
def exit_gracefully(self, signum, frame):
self.logger.info('captured signal %d' % signum)
traceback.print_stack(frame)
###### do your resources clean up here! ####
raise(SystemExit)
It might be an old question, but still relevant in 2020, so I might post some update. Since Octobers'19 update we generally should use @use instead of @import, but that's only a remark. Solution to this question is use index files to simplify including whole folders. Example below.
// foundation/_code.scss
code {
padding: .25em;
line-height: 0;
}
// foundation/_lists.scss
ul, ol {
text-align: left;
& & {
padding: {
bottom: 0;
left: 0;
}
}
}
// foundation/_index.scss
@use 'code';
@use 'lists';
// style.scss
@use 'foundation';
https://sass-lang.com/documentation/at-rules/use#index-files
var x : IHash = {};
x['key1'] = 'value1';
x['key2'] = 'value2';
console.log(x['key1']);
// outputs value1
console.log(x['key2']);
// outputs value2
If you would like to then iterate through your dictionary, you can use.
Object.keys(x).forEach((key) => {console.log(x[key])});
Object.keys returns all the properties of an object, so it works nicely for returning all the values from dictionary styled objects.
You also mentioned a hashmap in your question, the above definition is for a dictionary style interface. Therefore the keys will be unique, but the values will not.
You could use it like a hashset by just assigning the same value to the key and its value.
if you wanted the keys to be unique and with potentially different values, then you just have to check if the key exists on the object before adding to it.
var valueToAdd = 'one';
if(!x[valueToAdd])
x[valueToAdd] = valueToAdd;
or you could build your own class to act as a hashset of sorts.
Class HashSet{
private var keys: IHash = {};
private var values: string[] = [];
public Add(key: string){
if(!keys[key]){
values.push(key);
keys[key] = key;
}
}
public GetValues(){
// slicing the array will return it by value so users cannot accidentally
// start playing around with your array
return values.slice();
}
}
The function scipy.signal.find_peaks
, as its name suggests, is useful for this. But it's important to understand well its parameters width
, threshold
, distance
and above all prominence
to get a good peak extraction.
According to my tests and the documentation, the concept of prominence is "the useful concept" to keep the good peaks, and discard the noisy peaks.
What is (topographic) prominence? It is "the minimum height necessary to descend to get from the summit to any higher terrain", as it can be seen here:
The idea is:
The higher the prominence, the more "important" the peak is.
Test:
I used a (noisy) frequency-varying sinusoid on purpose because it shows many difficulties. We can see that the width
parameter is not very useful here because if you set a minimum width
too high, then it won't be able to track very close peaks in the high frequency part. If you set width
too low, you would have many unwanted peaks in the left part of the signal. Same problem with distance
. threshold
only compares with the direct neighbours, which is not useful here. prominence
is the one that gives the best solution. Note that you can combine many of these parameters!
Code:
import numpy as np
import matplotlib.pyplot as plt
from scipy.signal import find_peaks
x = np.sin(2*np.pi*(2**np.linspace(2,10,1000))*np.arange(1000)/48000) + np.random.normal(0, 1, 1000) * 0.15
peaks, _ = find_peaks(x, distance=20)
peaks2, _ = find_peaks(x, prominence=1) # BEST!
peaks3, _ = find_peaks(x, width=20)
peaks4, _ = find_peaks(x, threshold=0.4) # Required vertical distance to its direct neighbouring samples, pretty useless
plt.subplot(2, 2, 1)
plt.plot(peaks, x[peaks], "xr"); plt.plot(x); plt.legend(['distance'])
plt.subplot(2, 2, 2)
plt.plot(peaks2, x[peaks2], "ob"); plt.plot(x); plt.legend(['prominence'])
plt.subplot(2, 2, 3)
plt.plot(peaks3, x[peaks3], "vg"); plt.plot(x); plt.legend(['width'])
plt.subplot(2, 2, 4)
plt.plot(peaks4, x[peaks4], "xk"); plt.plot(x); plt.legend(['threshold'])
plt.show()
I don't think min/max validations attribute exist. I would use something like
[Range(1, Int32.MaxValue)]
for minimum value 1 and
[Range(Int32.MinValue, 10)]
for maximum value 10
func keyboardWillShow(notification: NSNotification) {
if let keyboardSize = (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.CGRectValue() {
self.view.frame.origin.y = self.view.frame.height - (self.view.frame.height + keyboardSize.height)
}
}
func keyboardWillHide(notification: NSNotification) {
self.view.frame.origin.y = 0
}
it must be more stable
(Is it because this is Java and therefore I shouldn't be doing evil nonportable obsolete things like touching my environment?)
I think you've hit the nail on the head.
A possible way to ease the burden would be to factor out a method
void setUpEnvironment(ProcessBuilder builder) {
Map<String, String> env = builder.environment();
// blah blah
}
and pass any ProcessBuilder
s through it before starting them.
Also, you probably already know this, but you can start more than one process with the same ProcessBuilder
. So if your subprocesses are the same, you don't need to do this setup over and over.
The OP is using Windows, and a much easier way to use GTest today is with vcpkg+cmake.
Install vcpkg as per https://github.com/microsoft/vcpkg , and make sure you can run vcpkg
from the cmd line. Take note of the vcpkg installation folder, eg. C:\bin\programs\vcpkg
.
Install gtest using vcpkg install gtest
: this will download, compile, and install GTest.
Use a CmakeLists.txt as below: note we can use targets instead of including folders.
cmake_minimum_required(VERSION 3.15)
project(sample CXX)
enable_testing()
find_package(GTest REQUIRED)
add_executable(test1 test.cpp source.cpp)
target_link_libraries(test1 GTest::GTest GTest::Main)
add_test(test-1 test1)
Run cmake with: (edit the vcpkg folder if necessary, and make sure the path to the vcpkg.cmake toolchain file is correct)
cmake -B build -DCMAKE_TOOLCHAIN_FILE=C:\bin\programs\vcpkg\scripts\buildsystems\vcpkg.cmake
and build using cmake --build build
as usual.
Note that, vcpkg will also copy the required gtest(d).dll/gtest(d)_main.dll from the install folder to the Debug/Release folders.
Test with cd build & ctest
.
In case you are just a beginner and want to split a string into an array of letters but didn't know the right terminology for that is a char[];
String myString = "My String";
char[] characters = myString.ToCharArray();
If this is not what you were looking for, sorry for wasting your time :P
For Each I As Item In Items
If I = x Then Continue For
' Do something
Next
Use the synaptic packet manager in order to install yacc / lex. If you are feeling more comfortable doing this on the console just do:
sudo apt-get install bison flex
There are some very nice articles on the net on how to get started with those tools. I found the article from CodeProject to be quite good and helpful (see here). But you should just try and search for "introduction to lex", there are plenty of good articles showing up.
A BehaviorSubject holds one value. When it is subscribed it emits the value immediately. A Subject doesn't hold a value.
Subject example (with RxJS 5 API):
const subject = new Rx.Subject();
subject.next(1);
subject.subscribe(x => console.log(x));
Console output will be empty
BehaviorSubject example:
const subject = new Rx.BehaviorSubject(0);
subject.next(1);
subject.subscribe(x => console.log(x));
Console output: 1
In addition:
BehaviorSubject
should be created with an initial value: new Rx.BehaviorSubject(1)
ReplaySubject
if you want the subject to hold more than one valueYour elements need to have a position
attribute. (e.g. absolute
, relative
, fixed
) or z-index
won't work.
If anyone gets
ERROR: Module phpX.X does not exist!
just install the module for your current php version:
apt-get install libapache2-mod-phpX.X
We can no longer reset android studio to it's default state by the answers/methods given in this question from android studio 3.2.0 Here is the updated new method to do it (It consumes less time as it does not require any update/installation).
For Windows/Mac
Open my computer
Go to C:\Users\Username\.android\build-cache
Delete the cache/files found inside the folder build-cache
Note: do not delete the folder named as "3.2.0" and "3.2.1" which will be inside the build-cache
Restart Android studio.
and that would completely reset your android studio settings from Android studio 3.2.0 and up.
parse_str($queryString, $vars);
unset($vars['return']);
$queryString = http_build_query($vars);
parse_str
parses a query string, http_build_query
creates a query string.
Do Echo %JAVA_HOME%
and then mvn --version
.
The JRE path should be same... then go menu Window → Preferences → Java → Installed JRE's location should be same as what Java_Home
is showing.
That command did not work for me, I used:
$ export PATH="$PATH:/c/Python27"
Then to make sure that git remembers the python path every time you open git type the following.
echo 'export PATH="$PATH:/c/Python27"' > .profile
It helps to group multiple statements into a single one so that a function-like macro can actually be used as a function. Suppose you have:
#define FOO(n) foo(n);bar(n)
and you do:
void foobar(int n) {
if (n)
FOO(n);
}
then this expands to:
void foobar(int n) {
if (n)
foo(n);bar(n);
}
Notice that the second call bar(n)
is not part of the if
statement anymore.
Wrap both into do { } while(0)
, and you can also use the macro in an if
statement.
public static int reverse(int x) {
boolean negetive = false;
if (x < 0) {
x = Math.abs(x);
negative = true;
}
int y = 0, i = 0;
while (x > 0) {
if (i > 0) {
y *= 10;
}
y += x % 10;
x = x / 10;
i++;
}
return negative ? -y : y;
}
Well, I can't see Tony's solution...so I have to handle it myself...
If you don't need version_key, you can just:
var UserSchema = new mongoose.Schema({
nickname: String,
reg_time: {type: Date, default: Date.now}
}, {
versionKey: false // You should be aware of the outcome after set to false
});
Setting the versionKey to false means the document is no longer versioned.
This is problematic if the document contains an array of subdocuments. One of the subdocuments could be deleted, reducing the size of the array. Later on, another operation could access the subdocument in the array at it's original position.
Since the array is now smaller, it may accidentally access the wrong subdocument in the array.
The versionKey solves this by associating the document with the a versionKey, used by mongoose internally to make sure it accesses the right collection version.
More information can be found at: http://aaronheckmann.blogspot.com/2012/06/mongoose-v3-part-1-versioning.html
I had the same problem and I solved by using the postcast server. You can install it locally and use it.
Real, User and Sys process time statistics
One of these things is not like the other. Real refers to actual elapsed time; User and Sys refer to CPU time used only by the process.
Real is wall clock time - time from start to finish of the call. This is all elapsed time including time slices used by other processes and time the process spends blocked (for example if it is waiting for I/O to complete).
User is the amount of CPU time spent in user-mode code (outside the kernel) within the process. This is only actual CPU time used in executing the process. Other processes and time the process spends blocked do not count towards this figure.
Sys is the amount of CPU time spent in the kernel within the process. This means executing CPU time spent in system calls within the kernel, as opposed to library code, which is still running in user-space. Like 'user', this is only CPU time used by the process. See below for a brief description of kernel mode (also known as 'supervisor' mode) and the system call mechanism.
User+Sys
will tell you how much actual CPU time your process used. Note that this is across all CPUs, so if the process has multiple threads (and this process is running on a computer with more than one processor) it could potentially exceed the wall clock time reported by Real
(which usually occurs). Note that in the output these figures include the User
and Sys
time of all child processes (and their descendants) as well when they could have been collected, e.g. by wait(2)
or waitpid(2)
, although the underlying system calls return the statistics for the process and its children separately.
Origins of the statistics reported by time (1)
The statistics reported by time
are gathered from various system calls. 'User' and 'Sys' come from wait (2)
(POSIX) or times (2)
(POSIX), depending on the particular system. 'Real' is calculated from a start and end time gathered from the gettimeofday (2)
call. Depending on the version of the system, various other statistics such as the number of context switches may also be gathered by time
.
On a multi-processor machine, a multi-threaded process or a process forking children could have an elapsed time smaller than the total CPU time - as different threads or processes may run in parallel. Also, the time statistics reported come from different origins, so times recorded for very short running tasks may be subject to rounding errors, as the example given by the original poster shows.
A brief primer on Kernel vs. User mode
On Unix, or any protected-memory operating system, 'Kernel' or 'Supervisor' mode refers to a privileged mode that the CPU can operate in. Certain privileged actions that could affect security or stability can only be done when the CPU is operating in this mode; these actions are not available to application code. An example of such an action might be manipulation of the MMU to gain access to the address space of another process. Normally, user-mode code cannot do this (with good reason), although it can request shared memory from the kernel, which could be read or written by more than one process. In this case, the shared memory is explicitly requested from the kernel through a secure mechanism and both processes have to explicitly attach to it in order to use it.
The privileged mode is usually referred to as 'kernel' mode because the kernel is executed by the CPU running in this mode. In order to switch to kernel mode you have to issue a specific instruction (often called a trap) that switches the CPU to running in kernel mode and runs code from a specific location held in a jump table. For security reasons, you cannot switch to kernel mode and execute arbitrary code - the traps are managed through a table of addresses that cannot be written to unless the CPU is running in supervisor mode. You trap with an explicit trap number and the address is looked up in the jump table; the kernel has a finite number of controlled entry points.
The 'system' calls in the C library (particularly those described in Section 2 of the man pages) have a user-mode component, which is what you actually call from your C program. Behind the scenes, they may issue one or more system calls to the kernel to do specific services such as I/O, but they still also have code running in user-mode. It is also quite possible to directly issue a trap to kernel mode from any user space code if desired, although you may need to write a snippet of assembly language to set up the registers correctly for the call.
More about 'sys'
There are things that your code cannot do from user mode - things like allocating memory or accessing hardware (HDD, network, etc.). These are under the supervision of the kernel, and it alone can do them. Some operations like malloc
orfread
/fwrite
will invoke these kernel functions and that then will count as 'sys' time. Unfortunately it's not as simple as "every call to malloc will be counted in 'sys' time". The call to malloc
will do some processing of its own (still counted in 'user' time) and then somewhere along the way it may call the function in kernel (counted in 'sys' time). After returning from the kernel call, there will be some more time in 'user' and then malloc
will return to your code. As for when the switch happens, and how much of it is spent in kernel mode... you cannot say. It depends on the implementation of the library. Also, other seemingly innocent functions might also use malloc
and the like in the background, which will again have some time in 'sys' then.
Using the java.time
framework built into Java 8 and later.
import java.time.Instant;
Instant.now().toEpochMilli(); //Long = 1450879900184
Instant.now().getEpochSecond(); //Long = 1450879900
This works in UTC because Instant.now()
is really call to Clock.systemUTC().instant()
https://docs.oracle.com/javase/8/docs/api/java/time/Instant.html
I have the same issue with the ".index()" method on lists. I have no issue with the fact that it throws an exception but I strongly disagree with the fact that it's a non-descriptive ValueError. I could understand if it would've been an IndexError, though.
I can see why returning "-1" would be an issue too because it's a valid index in Python. But realistically, I never expect a ".index()" method to return a negative number.
Here goes a one liner (ok, it's a rather long line ...), goes through the list exactly once and returns "None" if the item isn't found. It would be trivial to rewrite it to return -1, should you so desire.
indexOf = lambda list, thing: \
reduce(lambda acc, (idx, elem): \
idx if (acc is None) and elem == thing else acc, list, None)
How to use:
>>> indexOf([1,2,3], 4)
>>>
>>> indexOf([1,2,3], 1)
0
>>>
per @dantheta's comment:
As of npm 1.1.65, Github URL can be more concise user/project. npmjs.org/doc/files/package.json.html You can attach the branch like user/project#branch
So
"babel-eslint": "babel/babel-eslint",
Or for tag v1.12.0 on jscs:
"jscs": "jscs-dev/node-jscs#v1.12.0",
Note, if you use npm --save, you'll get the longer git
From https://docs.npmjs.com/cli/v6/configuring-npm/package-json#git-urls-as-dependencies
Git URLs as Dependencies
Git urls are of the form:
git+ssh://[email protected]:npm/cli.git#v1.0.27
git+ssh://[email protected]:npm/cli#semver:^5.0
git+https://[email protected]/npm/cli.git
git://github.com/npm/cli.git#v1.0.27
If
#<commit-ish>
is provided, it will be used to clone exactly that commit. If > the commit-ish has the format#semver:<semver>
,<semver>
can be any valid semver range or exact version, and npm will look for any tags or refs matching that range in the remote repository, much as it would for a registry dependency. If neither#<commit-ish>
or#semver:<semver>
is specified, then master is used.
GitHub URLs
As of version 1.1.65, you can refer to GitHub urls as just "foo": "user/foo-project". Just as with git URLs, a commit-ish suffix can be included. For example:
{ "name": "foo", "version": "0.0.0", "dependencies": { "express": "expressjs/express", "mocha": "mochajs/mocha#4727d357ea", "module": "user/repo#feature\/branch" } }```
the percent should be relative to an absolute size, try this :
table {
width:200px;
}
td {
width:65%;
border:1px solid black;
}
_x000D_
<table>
<tr>
<td>Testasdas 3123 1 dasd as da</td>
<td>A long string blah blah blah</td>
</tr>
</table>
_x000D_
a much more practical way for those who do not want to use regex:
$data = filter_var($data, FILTER_SANITIZE_NUMBER_INT);
note: it works with phone numbers too.
A very simple way is to check if the child exists.
If a child does not have any child, the exist
command will return false.
IF EXIST %1\. (
echo %1 is a folder
) else (
echo %1 is a file
)
You may have some false negative if you don't have sufficient access right (I have not tested it).
No, you can not add an auto increment option to an existing column with data, I think the option which you mentioned is the best.
Have a look here.
<Directory /uploads>
Options +Indexes
</Directory>
We can iterate loop like as C programming.
#!/bin/bash
for ((i=1; i<=20; i=i+1))
do
echo $i
done
you cant do this. Use a custom popup. Something like with the help of jQuery UI or jQuery BOXY.
for jQuery UI http://jqueryui.com/demos/dialog/
for jQuery BOXY http://onehackoranother.com/projects/jquery/boxy/
The GetPermissions Stored Procedure above is good however it uses Sp_msforeachdb which means that it will break if your SQL Instance has any databases names that include spaces or dashes and other non-best-practices characters. I have created a version that avoids the use of Sp_msforeachdb and also includes two columns that indicate 1 - if the Login is a sysadmin login (IsSysAdminLogin) and 2 - if the login is an orphan user (IsEmptyRow).
USE [master] ;
GO
IF EXISTS
(
SELECT * FROM sys.objects
WHERE object_id = OBJECT_ID(N'dbo.uspGetPermissionsOfAllLogins_DBsOnColumns')
AND [type] in (N'P',N'PC')
)
BEGIN
DROP PROCEDURE dbo.uspGetPermissionsOfAllLogins_DBsOnColumns ;
END
GO
CREATE PROCEDURE dbo.uspGetPermissionsOfAllLogins_DBsOnColumns
AS
SET NOCOUNT ON
;
BEGIN TRY
IF EXISTS
(
SELECT * FROM tempdb.dbo.sysobjects
WHERE id = object_id(N'[tempdb].dbo.[#permission]')
)
DROP TABLE #permission
;
IF EXISTS
(
SELECT * FROM tempdb.dbo.sysobjects
WHERE id = object_id(N'[tempdb].dbo.[#userroles_kk]')
)
DROP TABLE #userroles_kk
;
IF EXISTS
(
SELECT * FROM tempdb.dbo.sysobjects
WHERE id = object_id(N'[tempdb].dbo.[#rolemember_kk]')
)
DROP TABLE #rolemember_kk
;
IF EXISTS
(
SELECT * FROM tempdb.dbo.sysobjects
WHERE id = object_id(N'[tempdb].dbo.[##db_name]')
)
DROP TABLE ##db_name
;
DECLARE
@db_name VARCHAR(255)
,@sql_text VARCHAR(MAX)
;
SET @sql_text =
'CREATE TABLE ##db_name
(
LoginUserName VARCHAR(MAX)
,'
;
DECLARE cursDBs CURSOR FOR
SELECT [name]
FROM sys.databases
ORDER BY [name]
;
OPEN cursDBs
;
FETCH NEXT FROM cursDBs INTO @db_name
WHILE @@FETCH_STATUS = 0
BEGIN
SET @sql_text =
@sql_text + QUOTENAME(@db_name) + ' VARCHAR(MAX)
,'
FETCH NEXT FROM cursDBs INTO @db_name
END
CLOSE cursDBs
;
SET @sql_text =
@sql_text + 'IsSysAdminLogin CHAR(1)
,IsEmptyRow CHAR(1)
)'
--PRINT @sql_text
EXEC (@sql_text)
;
DEALLOCATE cursDBs
;
DECLARE
@RoleName VARCHAR(255)
,@UserName VARCHAR(255)
;
CREATE TABLE #permission
(
LoginUserName VARCHAR(255)
,databasename VARCHAR(255)
,[role] VARCHAR(255)
)
;
DECLARE cursSysSrvPrinName CURSOR FOR
SELECT [name]
FROM sys.server_principals
WHERE
[type] IN ( 'S', 'U', 'G' )
AND principal_id > 4
AND [name] NOT LIKE '##%'
ORDER BY [name]
;
OPEN cursSysSrvPrinName
;
FETCH NEXT FROM cursSysSrvPrinName INTO @UserName
WHILE @@FETCH_STATUS = 0
BEGIN
CREATE TABLE #userroles_kk
(
databasename VARCHAR(255)
,[role] VARCHAR(255)
)
;
CREATE TABLE #rolemember_kk
(
dbrole VARCHAR(255)
,membername VARCHAR(255)
,membersid VARBINARY(2048)
)
;
DECLARE cursDatabases CURSOR FAST_FORWARD LOCAL FOR
SELECT [name]
FROM sys.databases
ORDER BY [name]
;
OPEN cursDatabases
;
DECLARE
@DBN VARCHAR(255)
,@sqlText NVARCHAR(4000)
;
FETCH NEXT FROM cursDatabases INTO @DBN
WHILE @@FETCH_STATUS = 0
BEGIN
SET @sqlText =
N'USE ' + QUOTENAME(@DBN) + ';
TRUNCATE TABLE #RoleMember_kk
INSERT INTO #RoleMember_kk
EXEC sp_helprolemember
INSERT INTO #UserRoles_kk
(DatabaseName,[Role])
SELECT db_name(),dbRole
FROM #RoleMember_kk
WHERE MemberName = ''' + @UserName + '''
'
--PRINT @sqlText ;
EXEC sp_executesql @sqlText ;
FETCH NEXT FROM cursDatabases INTO @DBN
END
CLOSE cursDatabases
;
DEALLOCATE cursDatabases
;
INSERT INTO #permission
SELECT
@UserName 'user'
,b.name
,u.[role]
FROM
sys.sysdatabases b
LEFT JOIN
#userroles_kk u
ON QUOTENAME(u.databasename) = QUOTENAME(b.name)
ORDER BY 1
;
DROP TABLE #userroles_kk
;
DROP TABLE #rolemember_kk
;
FETCH NEXT FROM cursSysSrvPrinName INTO @UserName
END
CLOSE cursSysSrvPrinName
;
DEALLOCATE cursSysSrvPrinName
;
TRUNCATE TABLE ##db_name
;
DECLARE
@d1 VARCHAR(MAX)
,@d2 VARCHAR(MAX)
,@d3 VARCHAR(MAX)
,@ss VARCHAR(MAX)
;
DECLARE cursPermisTable CURSOR FOR
SELECT * FROM #permission
ORDER BY 2 DESC
;
OPEN cursPermisTable
;
FETCH NEXT FROM cursPermisTable INTO @d1,@d2,@d3
WHILE @@FETCH_STATUS = 0
BEGIN
IF NOT EXISTS
(
SELECT 1 FROM ##db_name WHERE LoginUserName = @d1
)
BEGIN
SET @ss =
'INSERT INTO ##db_name(LoginUserName) VALUES (''' + @d1 + ''')'
EXEC (@ss)
;
SET @ss =
'UPDATE ##db_name SET ' + @d2 + ' = ''' + @d3 + ''' WHERE LoginUserName = ''' + @d1 + ''''
EXEC (@ss)
;
END
ELSE
BEGIN
DECLARE
@var NVARCHAR(MAX)
,@ParmDefinition NVARCHAR(MAX)
,@var1 NVARCHAR(MAX)
;
SET @var =
N'SELECT @var1 = ' + QUOTENAME(@d2) + ' FROM ##db_name WHERE LoginUserName = ''' + @d1 + ''''
;
SET @ParmDefinition =
N'@var1 NVARCHAR(600) OUTPUT '
;
EXECUTE Sp_executesql @var,@ParmDefinition,@var1 = @var1 OUTPUT
;
SET @var1 =
ISNULL(@var1, ' ')
;
SET @var =
' UPDATE ##db_name SET ' + @d2 + '=''' + @var1 + ' ' + @d3 + ''' WHERE LoginUserName = ''' + @d1 + ''' '
;
EXEC (@var)
;
END
FETCH NEXT FROM cursPermisTable INTO @d1,@d2,@d3
END
CLOSE cursPermisTable
;
DEALLOCATE cursPermisTable
;
UPDATE ##db_name SET
IsSysAdminLogin = 'Y'
FROM
##db_name TT
INNER JOIN
dbo.syslogins SL
ON TT.LoginUserName = SL.[name]
WHERE
SL.sysadmin = 1
;
DECLARE cursDNamesAsColumns CURSOR FAST_FORWARD LOCAL FOR
SELECT [name]
FROM tempdb.sys.columns
WHERE
OBJECT_ID = OBJECT_ID('tempdb..##db_name')
AND [name] NOT IN ('LoginUserName','IsEmptyRow')
ORDER BY [name]
;
OPEN cursDNamesAsColumns
;
DECLARE
@ColN VARCHAR(255)
,@tSQLText NVARCHAR(4000)
;
FETCH NEXT FROM cursDNamesAsColumns INTO @ColN
WHILE @@FETCH_STATUS = 0
BEGIN
SET @tSQLText =
N'UPDATE ##db_name SET
IsEmptyRow = ''N''
WHERE IsEmptyRow IS NULL
AND ' + QUOTENAME(@ColN) + ' IS NOT NULL
;
'
--PRINT @tSQLText ;
EXEC sp_executesql @tSQLText ;
FETCH NEXT FROM cursDNamesAsColumns INTO @ColN
END
CLOSE cursDNamesAsColumns
;
DEALLOCATE cursDNamesAsColumns
;
UPDATE ##db_name SET
IsEmptyRow = 'Y'
WHERE IsEmptyRow IS NULL
;
UPDATE ##db_name SET
IsSysAdminLogin = 'N'
FROM
##db_name TT
INNER JOIN
dbo.syslogins SL
ON TT.LoginUserName = SL.[name]
WHERE
SL.sysadmin = 0
;
SELECT * FROM ##db_name
;
DROP TABLE ##db_name
;
DROP TABLE #permission
;
END TRY
BEGIN CATCH
DECLARE
@cursDBs_Status INT
,@cursSysSrvPrinName_Status INT
,@cursDatabases_Status INT
,@cursPermisTable_Status INT
,@cursDNamesAsColumns_Status INT
;
SELECT
@cursDBs_Status = CURSOR_STATUS('GLOBAL','cursDBs')
,@cursSysSrvPrinName_Status = CURSOR_STATUS('GLOBAL','cursSysSrvPrinName')
,@cursDatabases_Status = CURSOR_STATUS('GLOBAL','cursDatabases')
,@cursPermisTable_Status = CURSOR_STATUS('GLOBAL','cursPermisTable')
,@cursDNamesAsColumns_Status = CURSOR_STATUS('GLOBAL','cursPermisTable')
;
IF @cursDBs_Status > -2
BEGIN
CLOSE cursDBs ;
DEALLOCATE cursDBs ;
END
IF @cursSysSrvPrinName_Status > -2
BEGIN
CLOSE cursSysSrvPrinName ;
DEALLOCATE cursSysSrvPrinName ;
END
IF @cursDatabases_Status > -2
BEGIN
CLOSE cursDatabases ;
DEALLOCATE cursDatabases ;
END
IF @cursPermisTable_Status > -2
BEGIN
CLOSE cursPermisTable ;
DEALLOCATE cursPermisTable ;
END
IF @cursDNamesAsColumns_Status > -2
BEGIN
CLOSE cursDNamesAsColumns ;
DEALLOCATE cursDNamesAsColumns ;
END
SELECT ErrorNum = ERROR_NUMBER(),ErrorMsg = ERROR_MESSAGE() ;
END CATCH
GO
/*
EXEC [master].dbo.uspGetPermissionsOfAllLogins_DBsOnColumns ;
*/
Turn off "Print Layout" from the "View" menu.
Something like this works for me
namespace detail {
void concat_impl(std::ostream&) { /* do nothing */ }
template<typename T, typename ...Args>
void concat_impl(std::ostream& os, const T& t, Args&&... args)
{
os << t;
concat_impl(os, std::forward<Args>(args)...);
}
} /* namespace detail */
template<typename ...Args>
std::string concat(Args&&... args)
{
std::ostringstream os;
detail::concat_impl(os, std::forward<Args>(args)...);
return os.str();
}
// ...
std::string s{"Hello World, "};
s = concat(s, myInt, niceToSeeYouString, myChar, myFoo);
window.open
will open a new browser with the specified URL.
window.location.href
will open the URL in the window in which the code is called.
Note also that window.open()
is a function on the window object itself whereas window.location
is an object that exposes a variety of other methods and properties.
Check with netstat -nptl all processes
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:27017 0.0.0.0:* LISTEN 1736/mongod
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1594/sshd
tcp6 0 0 :::3977 :::* LISTEN 6231/nodejs
tcp6 0 0 :::22 :::* LISTEN 1594/sshd
tcp6 0 0 :::3200 :::* LISTEN 5535/nodejs
And it simply kills the process by the PID reference.... In my case I want to stop the 6231/nodejs so I execute the following command:
kill -9 6231
You can grow them row by row by appending or using rbind()
.
That does not mean you should. Dynamically growing structures is one of the least efficient ways to code in R.
If you can, allocate your entire data.frame up front:
N <- 1e4 # total number of rows to preallocate--possibly an overestimate
DF <- data.frame(num=rep(NA, N), txt=rep("", N), # as many cols as you need
stringsAsFactors=FALSE) # you don't know levels yet
and then during your operations insert row at a time
DF[i, ] <- list(1.4, "foo")
That should work for arbitrary data.frame and be much more efficient. If you overshot N you can always shrink empty rows out at the end.
If, like me, you are still using the browser version (which will be deprecated soon), have you tried the "Code" button?
This should generate a snippet which contains the entire request Postman is firing. You can even choose the language for the snippet. I find it quite handy when I need to debug stuff.
Hope this helps.
Provided my_command
is canonically designed, ie returns 0 when succeeds, then &&
is exactly the opposite of what you want. You want ||
.
Also note that (
does not seem right to me in bash, but I cannot try from where I am. Tell me.
my_command || {
echo 'my_command failed' ;
exit 1;
}
It worth mentioning that if you intend to package your application with PyInstaller and wise to avoid supporting that feature by yourself, you can pass the --uac-admin
or --uac-uiaccess
argument in order to request UAC elevation on start.
If the PATH value would be too long after your user's PATH variable has been concatenated onto the environment PATH variable, Windows will silently fail to concatenate the user PATH variable.
This can easily happen after new software is installed and adds something to PATH, thereby breaking existing installed software. Windows fail!
The best fix is to edit one of the PATH variables in the Control Panel and remove entries you don't need. Then open a new CMD window and see if all entries are shown in "echo %PATH%".
Definitely use Pyglet for this. It's kind of a large package, but it is pure python with no extension modules. That will definitely be the easiest for deployment. It's also got great format and codec support.
import pyglet
music = pyglet.resource.media('music.mp3')
music.play()
pyglet.app.run()
you need to run
yum install gcc
Add the function ob_end_clean() before call the Output function.
If you using RadAjaxManager then here is the code which helps:
RadAjaxManager1.ResponseScripts.Add("window.opener.location.href = '../CaseManagement/LCCase.aspx?" + caseId + "';
window.close();");
If you are using C++ and not C, then remember that in technical report 1 (TR1) and in the C++0x draft they have added facilities for a random number generator in the header file, I believe it is identical to the Boost.Random library and definitely more flexible and "modern" than the C library function, rand.
This syntax offers the ability to choose a generator (like the mersenne twister mt19937) and then choose a distribution (normal, bernoulli, binomial etc.).
Syntax is as follows (shameless borrowed from this site):
#include <iostream>
#include <random>
...
std::tr1::mt19937 eng; // a core engine class
std::tr1::normal_distribution<float> dist;
for (int i = 0; i < 10; ++i)
std::cout << dist(eng) << std::endl;
This might look cheap but it's working for me
SELECT CONVERT(DATETIME,LEFT(CONVERT(VARCHAR,@dateFieldOrVariable,101),10)+' 00:00:00.000')
You check if it's null
in C# like this:
if(MyObject != null) {
//do something
}
If you want to check against default (tough to understand the question on the info given) check:
if(MyObject != default(MyObject)) {
//do something
}
scipy.misc
gives deprecation warning about imsave
function and suggests usage of imageio
instead.
import imageio
imageio.imwrite('image_name.png', img)
Try this:
window.open(url, '_blank');
This will open in new tab (if your code is synchronous and in this case it is. in other case it would open a window)
To quote the bash man page:
There is no mechanism for using arguments in the replacement text. If arguments are needed, a shell function should be used (see FUNCTIONS below).
So it looks like you've answered your own question -- use a function instead of an alias
You can try this way also.
<?php
$obj = json_decode("{}");
var_dump($obj);
?>
Output:
object(stdClass)#1 (0) { }
The reason is that when you use lazy load, the session is closed.
There are two solutions.
Don't use lazy load.
Set lazy=false
in XML or Set @OneToMany(fetch = FetchType.EAGER)
In annotation.
Use lazy load.
Set lazy=true
in XML or Set @OneToMany(fetch = FetchType.LAZY)
In annotation.
and add OpenSessionInViewFilter filter
in your web.xml
Detail See my POST.
value = (round(value*100)) / 100.0;
this should be on here: it works anyway. And it looks good compared to the above ones.
hlsl code
float3 Hue(float H)
{
half R = abs(H * 6 - 3) - 1;
half G = 2 - abs(H * 6 - 2);
half B = 2 - abs(H * 6 - 4);
return saturate(half3(R,G,B));
}
half4 HSVtoRGB(in half3 HSV)
{
return half4(((Hue(HSV.x) - 1) * HSV.y + 1) * HSV.z,1);
}
float3 is 16 bit precision vector3 data type, i.e. float3 hue() is returns a data type (x,y,z) e.g. (r,g,b), half is same with half precision, 8bit, a float4 is (r,g,b,a) 4 values.
In swift 4 & Xcode 9.2 , you can detect if a device is iPhone/iPad by below ways.
if (UIDevice.current.userInterfaceIdiom == .pad){
print("iPad")
}
else{
print("iPhone")
}
Another Way
let deviceName = UIDevice.current.model
print(deviceName);
if deviceName == "iPhone"{
print("iPhone")
}
else{
print("iPad")
}
To give a detailed answer to question 3: yes, there are (rare) occasions when you might call the destructor explicitly, in particular as the counterpart to a placement new, as dasblinkenlight observes.
To give a concrete example of this:
#include <iostream>
#include <new>
struct Foo
{
Foo(int i_) : i(i_) {}
int i;
};
int main()
{
// Allocate a chunk of memory large enough to hold 5 Foo objects.
int n = 5;
char *chunk = static_cast<char*>(::operator new(sizeof(Foo) * n));
// Use placement new to construct Foo instances at the right places in the chunk.
for(int i=0; i<n; ++i)
{
new (chunk + i*sizeof(Foo)) Foo(i);
}
// Output the contents of each Foo instance and use an explicit destructor call to destroy it.
for(int i=0; i<n; ++i)
{
Foo *foo = reinterpret_cast<Foo*>(chunk + i*sizeof(Foo));
std::cout << foo->i << '\n';
foo->~Foo();
}
// Deallocate the original chunk of memory.
::operator delete(chunk);
return 0;
}
The purpose of this kind of thing is to decouple memory allocation from object construction.
I just wrote this for you, I hope you like it :) No guarantees that it's cross-browser, but I think it is :)
(function(){
var min = 100, max = 300, pad_right = 5, input = document.getElementById('adjinput');
input.style.width = min+'px';
input.onkeypress = input.onkeydown = input.onkeyup = function(){
var input = this;
setTimeout(function(){
var tmp = document.createElement('div');
tmp.style.padding = '0';
if(getComputedStyle)
tmp.style.cssText = getComputedStyle(input, null).cssText;
if(input.currentStyle)
tmp.style.cssText = input.currentStyle.cssText;
tmp.style.width = '';
tmp.style.position = 'absolute';
tmp.innerHTML = input.value.replace(/&/g, "&")
.replace(/</g, "<")
.replace(/>/g, ">")
.replace(/"/g, """)
.replace(/'/g, "'")
.replace(/ /g, ' ');
input.parentNode.appendChild(tmp);
var width = tmp.clientWidth+pad_right+1;
tmp.parentNode.removeChild(tmp);
if(min <= width && width <= max)
input.style.width = width+'px';
}, 1);
}
})();
In Jupyter Notebook, if you do the following, it prints a nice grouped version of the object. The apply
method helps in creation of a multiindex dataframe.
by = 'A' # groupby 'by' argument
df.groupby(by).apply(lambda a: a[:])
Output:
A B
A
one 0 one 0
1 one 1
5 one 5
three 3 three 3
4 three 4
two 2 two 2
If you want the by
column(s) to not appear in the output, just drop the column(s), like so.
df.groupby(by).apply(lambda a: a.drop(by, axis=1)[:])
Output:
B
A
one 0 0
1 1
5 5
three 3 3
4 4
two 2 2
Here, I am not sure as to why .iloc[:]
does not work instead of [:]
at the end. So, if there are some issues in future due to updates (or at present), .iloc[:len(a)]
also works.
this prototype:
int execlp(const char *file, const char *arg, ...);
Says that execlp ìs a variable argument function. It takes 2 const char *
. The rest of the arguments, if any, are the additional arguments to hand over to program we want to run - also char *
- all these are C strings (and the last argument must be a NULL pointer)
So, the file
argument is the path name of an executable file to be executed. arg
is the string we want to appear as argv[0]
in the executable. By convention, argv[0]
is just the file name of the executable, normally it's set to the same as file
.
The ...
are now the additional arguments to give to the executable.
Say you run this from a commandline/shell:
$ ls
That'd be execlp("ls", "ls", (char *)NULL);
Or if you run
$ ls -l /
That'd be execlp("ls", "ls", "-l", "/", (char *)NULL);
So on to execlp("/bin/sh", ..., "ls -l /bin/??", ...);
Here you are going to the shell, /bin/sh , and you're giving the shell a command to execute. That command is "ls -l /bin/??". You can run that manually from a commandline/shell:
$ ls -l /bin/??
Now, how do you run a shell and tell it to execute a command ? You open up the documentation/man page for your shell and read it.
What you want to run is:
$ /bin/sh -c "ls -l /bin/??"
This becomes
execlp("/bin/sh","/bin/sh", "-c", "ls -l /bin/??", (char *)NULL);
Side note:
The /bin/??
is doing pattern matching, this pattern matching is done by the shell, and it expands to all files under /bin/ with 2 characters. If you simply did
execlp("ls","ls", "-l", "/bin/??", (char *)NULL);
Probably nothing would happen (unless there's a file actually named /bin/??
) as there's no shell that interprets and expands /bin/??
Why not read the file in text mode, rather than binary mode?
//As an HTTP redirect (back button will not work )
window.location.replace("http://www.google.com");
//like if you click on a link (it will be saved in the session history,
//so the back button will work as expected)
window.location.href = "http://www.google.com";
The performance impact depends on the way you lock. You can find a good list of optimizations here: http://www.thinkingparallel.com/2007/07/31/10-ways-to-reduce-lock-contention-in-threaded-programs/
Basically you should try to lock as little as possible, since it puts your waiting code to sleep. If you have some heavy calculations or long lasting code (e.g. file upload) in a lock it results in a huge performance loss.
StringUtils is part of Apache Commons Lang (http://commons.apache.org/lang/, and as the name suggest it provides some nice utilities for dealing with Strings, going beyond what is offered in java.lang.String. It consists of over 50 static methods.
There are two different versions available, the newer org.apache.commons.lang3.StringUtils and the older org.apache.commons.lang.StringUtils. There are not really any significant differences between the two. lang3.StringUtils requires Java 5.0 and is probably the version you'll want to use.
In addition to mentioned methods it is worth mentioning that for server-to-server applications, you can also use this form of permanent access token: app_id|app_secret This type of access token is called App Token. It can generally be used to call Graph API and query for public nodes within your application back-end. It is mentioned here: https://developers.facebook.com/docs/facebook-login/access-tokens
In my particular case, I have PHP configured to use PHP-FPM (FastCGI Process Manager). When executing phpinfo()
from CLI I saw correct timezone that I had set in the php.ini, however it was still incorrect in the browser and causing my code to fail. I simply needed to restart the php-fpm
service on the server.
service rh-php56-php-fpm restart
You may also need to restart the httpd
service if you edited the php.ini
service httpd restart
None of the solutions above worked for me, but html_entity_decode($json_string)
did the trick
NULL isn't equal to anything, not even itself. My personal solution to understanding the behavior of NULL is to avoid using it as much as possible :).
The difference between HEAD (current branch or last committed state on current branch), index (aka. staging area) and working tree (the state of files in checkout) is described in "The Three States" section of the "1.3 Git Basics" chapter of Pro Git book by Scott Chacon (Creative Commons licensed).
Here is the image illustrating it from this chapter:
In the above image "working directory" is the same as "working tree", the "staging area" is an alternate name for git "index", and HEAD points to currently checked out branch, which tip points to last commit in the "git directory (repository)"
Note that git commit -a
would stage changes and commit in one step.
Another easy method in Netbeans is also avaiable here, There are libraries inside Netbeans itself,where the solutions for this type of situations are available.Select the relevant one as well.It is much easier.After doing the prescribed steps in the link,please restart Netbeans.
Step1:- Select Tools->Palette->Swing/AWT Components
Step2:- Click 'Add from JAR'in Palette Manager
Step3:- Browse to [NETBEANS HOME]\ide\modules\ext and select swingx-0.9.5.jar
Step4:- This will bring up a list of all the components available for the palette. Lots of goodies here! Select JXDatePicker.
Step5:- Select Swing Controls & click finish
Step6:- Restart NetBeans IDE and see the magic :)
This is the Docker Hub page for Ubuntu and this is how it is created. It only has (somewhat) bare minimum packages installed, thus if you need anything extra you need to install it yourself.
apt-get update && apt-get install -y iputils-ping
However usually you'd create a "Dockerfile" and build it:
mkdir ubuntu_with_ping
cat >ubuntu_with_ping/Dockerfile <<'EOF'
FROM ubuntu
RUN apt-get update && apt-get install -y iputils-ping
CMD bash
EOF
docker build -t ubuntu_with_ping ubuntu_with_ping
docker run -it ubuntu_with_ping
Please use Google to find tutorials and browse existing Dockerfiles to see how they usually do things :) For example image size should be minimized by running apt-get clean && rm -rf /var/lib/apt/lists/*
after apt-get install
commands.
jeb's edited answer comes close to solving all the issues. But it has problems with the following strings:
"a\b\"
"a/b/"
"\"
"/"
"."
".."
"c:"
I've modified his technique to something that I think can truly handle any string of printable characters, except for length limitations.
Other improvements:
Uses the %TEMP% location for the temp file, so no longer need write access to the current directory.
Created 2 variants, one takes a string literal, the other the name of a variable containing the string. The variable version is generally less convenient, but it eliminates some special character escape issues.
Added the /n option as an optional 3rd parameter to append a newline at the end of the output.
Backspace does not work across a line break, so the technique can have problems if the line wraps. For example, printing a string with length between 74 - 79 will not work properly if the console has a line width of 80.
@echo off
setlocal
call :initColorPrint
call :colorPrint 0a "a"
call :colorPrint 0b "b"
set "txt=^" & call :colorPrintVar 0c txt
call :colorPrint 0d "<"
call :colorPrint 0e ">"
call :colorPrint 0f "&"
call :colorPrint 1a "|"
call :colorPrint 1b " "
call :colorPrint 1c "%%%%"
call :colorPrint 1d ^"""
call :colorPrint 1e "*"
call :colorPrint 1f "?"
call :colorPrint 2a "!"
call :colorPrint 2b "."
call :colorPrint 2c ".."
call :colorPrint 2d "/"
call :colorPrint 2e "\"
call :colorPrint 2f "q:" /n
echo(
set complex="c:\hello world!/.\..\\a//^<%%>&|!" /^^^<%%^>^&^|!\
call :colorPrintVar 74 complex /n
call :cleanupColorPrint
exit /b
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:colorPrint Color Str [/n]
setlocal
set "str=%~2"
call :colorPrintVar %1 str %3
exit /b
:colorPrintVar Color StrVar [/n]
if not defined %~2 exit /b
setlocal enableDelayedExpansion
set "str=a%DEL%!%~2:\=a%DEL%\..\%DEL%%DEL%%DEL%!"
set "str=!str:/=a%DEL%/..\%DEL%%DEL%%DEL%!"
set "str=!str:"=\"!"
pushd "%temp%"
findstr /p /A:%1 "." "!str!\..\x" nul
if /i "%~3"=="/n" echo(
exit /b
:initColorPrint
for /F "tokens=1,2 delims=#" %%a in ('"prompt #$H#$E# & echo on & for %%b in (1) do rem"') do set "DEL=%%a"
<nul >"%temp%\x" set /p "=%DEL%%DEL%%DEL%%DEL%%DEL%%DEL%.%DEL%"
exit /b
:cleanupColorPrint
del "%temp%\x"
exit /b
UPDATE 2012-11-27
This method fails on XP because FINDSTR displays backspace as a period on the screen. jeb's original answer works on XP, albeit with the limitations already noted
UPDATE 2012-12-14
There has been a lot of development activity at DosTips and SS64. It turns out that FINDSTR also corrupts file names containing extended ASCII if supplied on the command line. I've updated my FINDSTR Q&A.
Below is a version that works on XP and supports ALL single byte characters except 0x00 (nul), 0x0A (linefeed), and 0x0D (carriage return). However, when running on XP, most control characters will display as dots. This is an inherent feature of FINDSTR on XP that cannot be avoided.
Unfortunately, adding support for XP and for extended ASCII characters slows the routine down :-(
Just for fun, I grabbed some color ASCII art from joan stark's ASCII Art Gallery and adapted it for use with ColorPrint. I added a :c entry point just for shorthand, and to handle an issue with quote literals.
@echo off
setlocal disableDelayedExpansion
set q=^"
echo(
echo(
call :c 0E " , .-;" /n
call :c 0E " , |\ / / __," /n
call :c 0E " |\ '.`-.| |.'.-'" /n
call :c 0E " \`'-: `; : /" /n
call :c 0E " `-._'. \'|" /n
call :c 0E " ,_.-=` ` ` ~,_" /n
call :c 0E " '--,. "&call :c 0c ".-. "&call :c 0E ",=!q!." /n
call :c 0E " / "&call :c 0c "{ "&call :c 0A "* "&call :c 0c ")"&call :c 0E "`"&call :c 06 ";-."&call :c 0E "}" /n
call :c 0E " | "&call :c 0c "'-' "&call :c 06 "/__ |" /n
call :c 0E " / "&call :c 06 "\_,\|" /n
call :c 0E " | (" /n
call :c 0E " "&call :c 0c "__ "&call :c 0E "/ ' \" /n
call :c 02 " /\_ "&call :c 0c "/,'`"&call :c 0E "| ' "&call :c 0c ".-~!q!~~-." /n
call :c 02 " |`.\_ "&call :c 0c "| "&call :c 0E "/ ' , "&call :c 0c "/ \" /n
call :c 02 " _/ `, \"&call :c 0c "| "&call :c 0E "; , . "&call :c 0c "| , ' . |" /n
call :c 02 " \ `, "&call :c 0c "| "&call :c 0E "| , , "&call :c 0c "| : ; : |" /n
call :c 02 " _\ `, "&call :c 0c "\ "&call :c 0E "|. , "&call :c 0c "| | | | |" /n
call :c 02 " \` `. "&call :c 0c "\ "&call :c 0E "| ' "&call :c 0A "|"&call :c 0c "\_|-'|_,'\|" /n
call :c 02 " _\ `, "&call :c 0A "`"&call :c 0E "\ ' . ' "&call :c 0A "| | | | | "&call :c 02 "__" /n
call :c 02 " \ `, "&call :c 0E "| , ' "&call :c 0A "|_/'-|_\_/ "&call :c 02 "__ ,-;` /" /n
call :c 02 " \ `, "&call :c 0E "\ . , ' .| | | | | "&call :c 02 "_/' ` _=`|" /n
call :c 02 " `\ `, "&call :c 0E "\ , | | | | |"&call :c 02 "_/' .=!q! /" /n
call :c 02 " \` `, "&call :c 0E "`\ \/|,| ;"&call :c 02 "/' .=!q! |" /n
call :c 02 " \ `, "&call :c 0E "`\' , | ; "&call :c 02 "/' =!q! _/" /n
call :c 02 " `\ `, "&call :c 05 ".-!q!!q!-. "&call :c 0E "': "&call :c 02 "/' =!q! /" /n
call :c 02 " jgs _`\ ;"&call :c 05 "_{ ' ; "&call :c 02 "/' =!q! /" /n
call :c 02 " _\`-/__"&call :c 05 ".~ `."&call :c 07 "8"&call :c 05 ".'.!q!`~-. "&call :c 02 "=!q! _,/" /n
call :c 02 " __\ "&call :c 05 "{ '-."&call :c 07 "|"&call :c 05 ".'.--~'`}"&call :c 02 " _/" /n
call :c 02 " \ .=!q!` "&call :c 05 "}.-~!q!'"&call :c 0D "u"&call :c 05 "'-. '-..' "&call :c 02 "__/" /n
call :c 02 " _/ .!q! "&call :c 05 "{ -'.~('-._,.'"&call :c 02 "\_,/" /n
call :c 02 " / .!q! _/'"&call :c 05 "`--; ; `. ;" /n
call :c 02 " .=!q! _/' "&call :c 05 "`-..__,-'" /n
call :c 02 " __/'" /n
echo(
exit /b
:c
setlocal enableDelayedExpansion
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:colorPrint Color Str [/n]
setlocal
set "s=%~2"
call :colorPrintVar %1 s %3
exit /b
:colorPrintVar Color StrVar [/n]
if not defined DEL call :initColorPrint
setlocal enableDelayedExpansion
pushd .
':
cd \
set "s=!%~2!"
:: The single blank line within the following IN() clause is critical - DO NOT REMOVE
for %%n in (^"^
^") do (
set "s=!s:\=%%~n\%%~n!"
set "s=!s:/=%%~n/%%~n!"
set "s=!s::=%%~n:%%~n!"
)
for /f delims^=^ eol^= %%s in ("!s!") do (
if "!" equ "" setlocal disableDelayedExpansion
if %%s==\ (
findstr /a:%~1 "." "\'" nul
<nul set /p "=%DEL%%DEL%%DEL%"
) else if %%s==/ (
findstr /a:%~1 "." "/.\'" nul
<nul set /p "=%DEL%%DEL%%DEL%%DEL%%DEL%"
) else (
>colorPrint.txt (echo %%s\..\')
findstr /a:%~1 /f:colorPrint.txt "."
<nul set /p "=%DEL%%DEL%%DEL%%DEL%%DEL%%DEL%%DEL%"
)
)
if /i "%~3"=="/n" echo(
popd
exit /b
:initColorPrint
for /f %%A in ('"prompt $H&for %%B in (1) do rem"') do set "DEL=%%A %%A"
<nul >"%temp%\'" set /p "=."
subst ': "%temp%" >nul
exit /b
:cleanupColorPrint
2>nul del "%temp%\'"
2>nul del "%temp%\colorPrint.txt"
>nul subst ': /d
exit /b
Usually this region should contains the constructors of the class
A bit longer than I expected:
>>> df
samples subject trial_num
0 [-0.07, -2.9, -2.44] 1 1
1 [-1.52, -0.35, 0.1] 1 2
2 [-0.17, 0.57, -0.65] 1 3
3 [-0.82, -1.06, 0.47] 2 1
4 [0.79, 1.35, -0.09] 2 2
5 [1.17, 1.14, -1.79] 2 3
>>>
>>> s = df.apply(lambda x: pd.Series(x['samples']),axis=1).stack().reset_index(level=1, drop=True)
>>> s.name = 'sample'
>>>
>>> df.drop('samples', axis=1).join(s)
subject trial_num sample
0 1 1 -0.07
0 1 1 -2.90
0 1 1 -2.44
1 1 2 -1.52
1 1 2 -0.35
1 1 2 0.10
2 1 3 -0.17
2 1 3 0.57
2 1 3 -0.65
3 2 1 -0.82
3 2 1 -1.06
3 2 1 0.47
4 2 2 0.79
4 2 2 1.35
4 2 2 -0.09
5 2 3 1.17
5 2 3 1.14
5 2 3 -1.79
If you want sequential index, you can apply reset_index(drop=True)
to the result.
update:
>>> res = df.set_index(['subject', 'trial_num'])['samples'].apply(pd.Series).stack()
>>> res = res.reset_index()
>>> res.columns = ['subject','trial_num','sample_num','sample']
>>> res
subject trial_num sample_num sample
0 1 1 0 1.89
1 1 1 1 -2.92
2 1 1 2 0.34
3 1 2 0 0.85
4 1 2 1 0.24
5 1 2 2 0.72
6 1 3 0 -0.96
7 1 3 1 -2.72
8 1 3 2 -0.11
9 2 1 0 -1.33
10 2 1 1 3.13
11 2 1 2 -0.65
12 2 2 0 0.10
13 2 2 1 0.65
14 2 2 2 0.15
15 2 3 0 0.64
16 2 3 1 -0.10
17 2 3 2 -0.76
Here is full example. we have to use Iterator's remove() method
import java.util.ArrayList;
import java.util.Iterator;
public class ArrayTest {
int i;
public static void main(String args[]) {
ArrayList<ArrayTest> test = new ArrayList<ArrayTest>();
ArrayTest obj;
obj = new ArrayTest(1);
test.add(obj);
obj = new ArrayTest(2);
test.add(obj);
obj = new ArrayTest(3);
test.add(obj);
System.out.println("Before removing size is " + test.size() + " And Element are : " + test);
Iterator<ArrayTest> itr = test.iterator();
while (itr.hasNext()) {
ArrayTest number = itr.next();
if (number.i == 1) {
itr.remove();
}
}
System.out.println("After removing size is " + test.size() + " And Element are :" + test);
}
public ArrayTest(int i) {
this.i = i;
}
@Override
public String toString() {
return "ArrayTest [i=" + i + "]";
}
}
As Matt Mombrea is correct for the server side, you might run into another problem which is whitelisting rejection.
You have to configure your phonegap.plist. (I am using a old version of phonegap)
For cordova, there might be some changes in the naming and directory. But the steps should be mostly the same.
First select Supporting files > PhoneGap.plist
then under "ExternalHosts"
Add a entry, with a value of perhaps "http://nqatalog.negroesquisso.pt" I am using * for debugging purposes only.
Easy way for older C++, or C:
#include <time.h> // includes clock_t and CLOCKS_PER_SEC
int main() {
clock_t start, end;
start = clock();
// ...code to measure...
end = clock();
double duration_sec = double(end-start)/CLOCKS_PER_SEC;
return 0;
}
Timing precision in seconds is 1.0/CLOCKS_PER_SEC
if(strcmp(sr1,str2)) // this returns 0 if strings r equal
flag=0;
else flag=1; // then last check the variable flag value and print the message
OR
char str1[20],str2[20];
printf("enter first str > ");
gets(str1);
printf("enter second str > ");
gets(str2);
for(int i=0;str1[i]!='\0';i++)
{
if(str[i]==str2[i])
flag=0;
else {flag=1; break;}
}
//check the value of flag if it is 0 then strings r equal simple :)
Have you tried to use CTRL-F5 to update the page?
I think natually do it is straightforward, whether Intellij IDEA or Android Studio, I always click new Java class menu, and then typing the class name, press Enter to create. after that, I manually typing "extends Activity" in the class file, and then import the class by shortcut key. finally, I also manually override the onCreate() method and invoke the setContentView() method.
Try this :
<?php
global $woocommerce;
$items = $woocommerce->cart->get_cart();
foreach($items as $item => $values) {
$_product = wc_get_product( $values['data']->get_id());
echo "<b>".$_product->get_title().'</b> <br> Quantity: '.$values['quantity'].'<br>';
$price = get_post_meta($values['product_id'] , '_price', true);
echo " Price: ".$price."<br>";
}
?>
To get Product Image and Regular & Sale Price:
<?php
global $woocommerce;
$items = $woocommerce->cart->get_cart();
foreach($items as $item => $values) {
$_product = wc_get_product( $values['data']->get_id() );
//product image
$getProductDetail = wc_get_product( $values['product_id'] );
echo $getProductDetail->get_image(); // accepts 2 arguments ( size, attr )
echo "<b>".$_product->get_title() .'</b> <br> Quantity: '.$values['quantity'].'<br>';
$price = get_post_meta($values['product_id'] , '_price', true);
echo " Price: ".$price."<br>";
/*Regular Price and Sale Price*/
echo "Regular Price: ".get_post_meta($values['product_id'] , '_regular_price', true)."<br>";
echo "Sale Price: ".get_post_meta($values['product_id'] , '_sale_price', true)."<br>";
}
?>
A web service endpoint is the URL that another program would use to communicate with your program. To see the WSDL you add ?wsdl
to the web service endpoint URL.
Web services are for program-to-program interaction, while web pages are for program-to-human interaction.
So:
Endpoint is: http://www.blah.com/myproject/webservice/webmethod
Therefore,
WSDL is: http://www.blah.com/myproject/webservice/webmethod?wsdl
To expand further on the elements of a WSDL, I always find it helpful to compare them to code:
A WSDL has 2 portions (physical & abstract).
Physical Portion:
Definitions - variables - ex: myVar, x, y, etc.
Types - data types - ex: int, double, String, myObjectType
Operations - methods/functions - ex: myMethod(), myFunction(), etc.
Messages - method/function input parameters & return types
Porttypes - classes (i.e. they are a container for operations) - ex: MyClass{}, etc.
Abstract Portion:
Binding - these connect to the porttypes and define the chosen protocol for communicating with this web service. - a protocol is a form of communication (so text/SMS, vs. phone vs. email, etc.).
Service - this lists the address where another program can find your web service (i.e. your endpoint).
If the "many" model does not justify the creation of a model per-se (not the case here, but it might benefits other people), another alternative would be to rely on specific PostgreSQL data types, via the Django Contrib package
Postgres can deal with Array or JSON data types, and this may be a nice workaround to handle One-To-Many when the many-ies can only be tied to a single entity of the one.
Postgres allows you to access single elements of the array, which means that queries can be really fast, and avoid application-level overheads. And of course, Django implements a cool API to leverage this feature.
It obviously has the disadvantage of not being portable to others database backend, but I thougt it still worth mentionning.
Hope it may help some people looking for ideas.
For me (Windows 10, Docker Engine v19.03.8) it was a mix of https://stackoverflow.com/a/43541732/7924573 and https://stackoverflow.com/a/50866007/7924573 .
version: '3.7'
services:
server:
build: .
ports:
- "5000:5000"
network_mode: bridge
or alternatively: Use --net="bridge"
if you are not using docker-compose (similar to https://stackoverflow.com/a/48806927/7924573)As just formulated by grepsedawk, the answer lies in the -l
option of g++
, calling ld
. If you look at the man page of this command, you can either do:
g++ -l:libmagic.so.1 [...]
g++ -lmagic [...]
, if you have a symlink named libmagic.so in your libs pathIt sounds like you probably want to get ahold of json-lib:
http://json-lib.sourceforge.net/
Douglas Crockford is the guy who invented JSON; his Java library is here:
It sounds like the folks at json-lib picked up where Crockford left off. Both fully support JSON, both use (compatible, as far as I can tell) JSONObject, JSONArray and JSONFunction constructs.
'Hope that helps ..
In order to read data from microsoft excel 2007 by codeigniter just create a helper function excel_helper.php and add the following in:
require_once APPPATH.'libraries/phpexcel/PHPExcel.php';
require_once APPPATH.'libraries/phpexcel/PHPExcel/IOFactory.php';
in controller add the following code to read spread sheet by active sheet
//initialize php excel first
ob_end_clean();
//define cachemethod
$cacheMethod = PHPExcel_CachedObjectStorageFactory::cache_to_phpTemp;
$cacheSettings = array('memoryCacheSize' => '20MB');
//set php excel settings
PHPExcel_Settings::setCacheStorageMethod(
$cacheMethod,$cacheSettings
);
$arrayLabel = array("A","B","C","D","E");
//=== set object reader
$objectReader = PHPExcel_IOFactory::createReader('Excel2007');
$objectReader->setReadDataOnly(true);
$objPHPExcel = $objectReader->load("./forms/test.xlsx");
$objWorksheet = $objPHPExcel->setActiveSheetIndexbyName('Sheet1');
$starting = 1;
$end = 3;
for($i = $starting;$i<=$end; $i++)
{
for($j=0;$j<count($arrayLabel);$j++)
{
//== display each cell value
echo $objWorksheet->getCell($arrayLabel[$j].$i)->getValue();
}
}
//or dump data
$sheetData = $objPHPExcel->getActiveSheet()->toArray(null,true,true,true);
var_dump($sheetData);
//see also the following link
http://blog.mayflower.de/561-Import-and-export-data-using-PHPExcel.html
----------- import in another style around 5000 records ------
$this->benchmark->mark('code_start');
//=== change php ini limits. =====
$cacheMethod = PHPExcel_CachedObjectStorageFactory:: cache_to_phpTemp;
$cacheSettings = array( ' memoryCacheSize ' => '50MB');
PHPExcel_Settings::setCacheStorageMethod($cacheMethod, $cacheSettings);
//==== create excel object of reader
$objReader = PHPExcel_IOFactory::createReader('Excel2007');
//$objReader->setReadDataOnly(true);
//==== load forms tashkil where the file exists
$objPHPExcel = $objReader->load("./forms/5000records.xlsx");
//==== set active sheet to read data
$worksheet = $objPHPExcel->setActiveSheetIndexbyName('Sheet1');
$highestRow = $worksheet->getHighestRow(); // e.g. 10
$highestColumn = $worksheet->getHighestColumn(); // e.g 'F'
$highestColumnIndex = PHPExcel_Cell::columnIndexFromString($highestColumn);
$nrColumns = ord($highestColumn) - 64;
$worksheetTitle = $worksheet->getTitle();
echo "<br>The worksheet ".$worksheetTitle." has ";
echo $nrColumns . ' columns (A-' . $highestColumn . ') ';
echo ' and ' . $highestRow . ' row.';
echo '<br>Data: <table border="1"><tr>';
//----- loop from all rows -----
for ($row = 1; $row <= $highestRow; ++ $row)
{
echo '<tr>';
echo "<td>".$row."</td>";
//--- read each excel column for each row ----
for ($col = 0; $col < $highestColumnIndex; ++ $col)
{
if($row == 1)
{
// show column name with the title
//----- get value ----
$cell = $worksheet->getCellByColumnAndRow($col, $row);
$val = $cell->getValue();
//$dataType = PHPExcel_Cell_DataType::dataTypeForValue($val);
echo '<td>' . $val ."(".$row." X ".$col.")".'</td>';
}
else
{
if($col == 9)
{
//----- get value ----
$cell = $worksheet->getCellByColumnAndRow($col, $row);
$val = $cell->getValue();
//$dataType = PHPExcel_Cell_DataType::dataTypeForValue($val);
echo '<td>zone ' . $val .'</td>';
}
else if($col == 13)
{
$date = PHPExcel_Shared_Date::ExcelToPHPObject($worksheet->getCellByColumnAndRow($col, $row)->getValue())->format('Y-m-d');
echo '<td>' .dateprovider($date,'dr') .'</td>';
}
else
{
//----- get value ----
$cell = $worksheet->getCellByColumnAndRow($col, $row);
$val = $cell->getValue();
//$dataType = PHPExcel_Cell_DataType::dataTypeForValue($val);
echo '<td>' . $val .'</td>';
}
}
}
echo '</tr>';
}
echo '</table>';
$this->benchmark->mark('code_end');
echo "Total time:".$this->benchmark->elapsed_time('code_start', 'code_end');
$this->load->view("error");
As pointed out in the comments, you cannot catch an exception that's not thrown by the code within your try
block. Try changing your code to:
try{
Integer.parseInt(args[i-1]); // this only throws a NumberFormatException
}
catch(NumberFormatException e){
throw new MojException("Bledne dane");
}
Always check the documentation to see what exceptions are thrown by each method. You may also wish to read up on the subject of checked vs unchecked exceptions before that causes you any confusion in the future.
None of the above solutions worked for me. This is my solution:
/* Height fix for select2 */
.select2-container .select2-selection--single, .select2-container--default .select2-selection--single .select2-selection__rendered, .select2-container--default .select2-selection--single .select2-selection__arrow {
height: 35px;
}
.select2-container--default .select2-selection--single .select2-selection__rendered {
line-height: 35px;
}
uint32_t
is defined in the standard, in
<cstdint>
synopsis [cstdint.syn]namespace std {
//...
typedef unsigned integer type uint32_t; // optional
//...
}
uint32
is not, it's a shortcut provided by some compilers (probably as typedef uint32_t uint32
) for ease of use.
Attributes is same term used alternativly for properties or fields or data members or class members.
Very informative answer from @stej, but here is a short answer: Among other options, you have 3 simple options to format [System.DateTime] stored in a variable:
Pass the variable to the Get-Date cmdlet:
Get-Date -Format "HH:mm" $date
Use toString() method:
$date.ToString("HH:mm")
Use Composite formatting:
"{0:HH:mm}" -f $date
You could import the 'os' module and use it like this :
import os
os.system('#DesiredAction')
I think its a matter of preference, although i prefer myFunction(...)
When creating a new "Google Maps Project", in Android Studio V 1.5.1, the last screen opens the google_maps_api.xml
file and displays the screen with instructions as follows:
Resources:
TODO: Before you run your application, you need a Google Maps API key.
To get one, follow this link, follow the directions and press "Create" at the end:
https://console.developers.google.com/flows/enableapi?apiid=maps_android_backend&keyType=CLIENT_SIDE_ANDROID&r= YOUR SHA-1 + YOUR PACKAGE NAME
You can also add your credentials to an existing key, using this line:
YOUR SHA-1:YOUR PACKAGE NAMEAlternatively, follow the directions here:
https://developers.google.com/maps/documentation/android/start#get-keyOnce you have your key (it starts with "AIza"), replace the "google_maps_key" string in this file.
<string name="google_maps_key" templateMergeStrategy="preserve" translatable="false">YOUR GOOGLE MAPS KEY</string>
To get YOUR GOOGLE MAPS KEY just cut and paste the URL link given into your browser and follow the instructions above at the time of creating the new application. The SHA-1
and Package names
are already in the link given so you do not need to know them. They will however be in your project in the resources>Values>google_maps_api.xml
file which is completed when you follow the instructions on creating the project.
@miyuru. As suggested by him run all the steps.
Ubuntu version 16.04
Still when I ran docker --version
it was returning a version. So to uninstall it completely
Again run the dpkg -l | grep -i docker
which will list package still there in system.
For example:
ii docker-ce-cli 5:19.03.6~3-0~ubuntu-xenial
amd64 Docker CLI: the open-source application container engine
Now remove them as show below :
sudo apt-get purge -y docker-ce-cli
sudo apt-get autoremove -y --purge docker-ce-cli
sudo apt-get autoclean
Hope this will resolve it, as it did in my case.
How to import a commons-library into netbeans.
Evaluate the error message in NetBeans:
java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
NoClassDeffFoundError means somewhere under the hood in the code you used, a method called another method which invoked a class that cannot be found. So what that means is your code did this: MyFoobarClass foobar = new MyFoobarClass()
and the compiler is confused because nowhere is defined this MyFoobarClass. This is why you get an error.
To know what to do next, you have to look at the error message closely. The words 'org/apache/commons' lets you know that this is the codebase that provides the tools you need. You have a choice, either you can import EVERYTHING in apache commons, or you could import JUST the LogFactory class, or you could do something in between. Like for example just get the logging bit of apache commons.
You'll want to go the middle of the road and get commons-logging. Excellent choice, fire up the google and search for apache commons-logging
. The first link takes you to http://commons.apache.org/proper/commons-logging/. Go to downloads. There you will find the most up-to-date ones. If your project was compiled under ancient versions of commons-logging, then use those same ancient ones because if you use the newer ones, the code may fail because the newer versions are different.
You're going to want to download the commons-logging-1.1.3-bin.zip
or something to that effect. Read what the name is saying. The .zip means it's a compressed file. commons-logging means that this one should contain the LogFactory class you desire. the middle 1.1.3 means that is the version. if you are compiling for an old version, you'll need to match these up, or else you risk the code not compiling right due to changes due to upgrading.
Download that zip. Unzip it. Search around for things that end in .jar
. In netbeans right click your project, click properties, click libraries, click "add jar/folder" and import those jars. Save the project, and re-run, and the errors should be gone.
The binaries don't include the source code, so you won't be able to drill down and see what is happening when you debug. As programmers you should be downloading "the source" of apache commons and compiling from source, generating the jars yourself and importing those for experience. You should be smart enough to understand and correct the source code you are importing. These ancient versions of apache commons might have been compiled under an older version of Java, so if you go too far back, they may not even compile unless you compile them under an ancient version of java.
There are three levels at which a newline could be inserted in a variable.
Well ..., technically four, but the first two are just two ways to write the newline in code.
The most basic is to create the variable with the newlines already.
We write the variable value in code with the newlines already inserted.
$ var="a
> b
> c"
$ echo "$var"
a
b
c
Or, inside an script code:
var="a
b
c"
Yes, that means writing Enter where needed in the code.
The sequence $' is an special shell expansion in bash and zsh.
var=$'a\nb\nc'
The line is parsed by the shell and expanded to « var="anewlinebnewlinec" », which is exactly what we want the variable var to be.
That will not work on older shells.
It is basically a command expansion with several commands:
echo -e
var="$( echo -e "a\nb\nc" )"
The bash and zsh printf '%b'
var="$( printf '%b' "a\nb\nc" )"
The bash printf -v
printf -v var '%b' "a\nb\nc"
Plain simple printf (works on most shells):
var="$( printf 'a\nb\nc' )"
All the commands listed in the second option could be used to expand the value of a var, if that var contains special characters.
So, all we need to do is get those values inside the var and execute some command to show:
var="a\nb\nc" # var will contain the characters \n not a newline.
echo -e "$var" # use echo.
printf "%b" "$var" # use bash %b in printf.
printf "$var" # use plain printf.
Note that printf is somewhat unsafe if var value is controlled by an attacker.
You may find it more readable to reverse your logic and use an else statement with an empty if.
if($some_variable === 'uk' || $another_variable === 'in'){}
else {
// This occurs when neither of the above are true
}
You have to use the isomorphic-fetch
module to your Node
project because of Node
does not contain Fetch API
yet. for fixing this problem run below command:
npm install --save isomorphic-fetch es6-promise
After installation use below code in your project:
import "isomorphic-fetch"
Hope this answer helps you.
BlobBuilder
is obsolete, use Blob
constructor instead:
URL.createObjectURL(new Blob([/*whatever content*/] , {type:'text/plain'}));
This returns a blob URL which you can then use in an anchor's href
. You can also modify an anchor's download
attribute to manipulate the file name:
<a href="/*assign url here*/" id="link" download="whatever.txt">download me</a>
Fiddled. If I recall correctly, there are arbitrary restrictions on trusted non-user initiated downloads; thus we'll stick with a link clicking which is seen as sufficiently user-initiated :)
Update: it's actually pretty trivial to save current document's html! Whenever our interactive link is clicked, we'll update its href
with a relevant blob. After executing the click-bound event, that's the download URL that will be navigated to!
$('#link').on('click', function(e){
this.href = URL.createObjectURL(
new Blob([document.documentElement.outerHTML] , {type:'text/html'})
);
});
This is FAQ 7.10. Others have shown how to apply this to a single column in a data frame, or to multiple columns in a data frame. But this is really treating the symptom, not curing the cause.
A better approach is to use the colClasses
argument to read.table
and related functions to tell R that the column should be numeric so that it never creates a factor and creates numeric. This will put in NA
for any values that do not convert to numeric.
Another better option is to figure out why R does not recognize the column as numeric (usually a non numeric character somewhere in that column) and fix the original data so that it is read in properly without needing to create NA
s.
Best is a combination of the last 2, make sure the data is correct before reading it in and specify colClasses
so R does not need to guess (this can speed up reading as well).
Set the content type with header('Content-type: application/json');
and then echo your data.
Pattern! The group names a (sub)pattern for later use in the regex. See the documentation here for details about how such groups are used.
The best and easy solution for solving this issue is pass your data from this function in controller.
$scope.trustSrcurl = function(data)
{
return $sce.trustAsResourceUrl(data);
}
In html page
<iframe class="youtube-player" type="text/html" width="640" height="385" ng-src="{{trustSrcurl(video.src)}}" allowfullscreen frameborder="0"></iframe>
I want to expand on my readability comment above.
Again, I completely agree with readability overriding other (performance-insignificant) concerns.
What I would like to point out is the brain interprets "positive" faster than it does "negative". E.g., "stop" vs. "do not go" (a rather lousy example due to the difference in number of words).
So given a choice:
if a == b
(do this)
else
(do that)
is preferable to the functionally-equivalent:
if a != b
(do that)
else
(do this)
Less readability/understandability leads to more bugs. Perhaps not in initial coding, but the (not as smart as you!) maintenance changes...
It’s not really answering your question, but just on this part:
[3] requires both an id and a name... having both is somewhat redundant
You’ll most likely need to have an id
attribute on each form field anyway, so that you can associate its <label>
element with it, like this:
<label for="foo">Foo:</label>
<input type="text" name="foo" id="foo" />
This is required for accessibility (i.e. if you don’t associate form labels and controls, why do you hate blind people so much?).
It is somewhat redundant, although less so when you have checkboxes/radio buttons, where several of them can share a name
. Ultimately, id
and name
are for different purposes, even if both are often set to the same value.
This is called type assertion in TypeScript, and since TypeScript 1.6, there are two ways to express this:
// Original syntax
var markerSymbolInfo = <MarkerSymbolInfo> symbolInfo;
// Newer additional syntax
var markerSymbolInfo = symbolInfo as MarkerSymbolInfo;
Both alternatives are functionally identical. The reason for introducing the as
-syntax is that the original syntax conflicted with JSX, see the design discussion here.
If you are in a position to choose, just use the syntax that you feel more comfortable with. I personally prefer the as
-syntax as it feels more fluent to read and write.
void CallFunction ()
{ // <----- At this point the compiler knows
// nothing about the members of B.
B b;
b.bFunction();
}
This happens for the same reason that functions in C cannot call each other without at least one of them being declared as a function prototype.
To fix this issue we need to make sure both classes are declared before they are used. We separate the declaration from the definition. This MSDN article explains in more detail about the declarations and definitions.
class A
{
public:
void CallFunction ();
};
class B: public A
{
public:
virtual void bFunction()
{ ... }
};
void A::CallFunction ()
{
B b;
b.bFunction();
}
Why Oracle did such a poor way to point to java is beyond me. We solved this problem by creating a new link to the JDK
mklink /d C:\ProgramData\Oracle\Java\javapath "C:\Program Files\Java\jdk1.8.0_40\bin\"
The same would work for a JRE if that is all that is required.
This replaces the old symlinks in C:\ProgramData\Oracle\Java\javapath
(if they existed previously)
I realize I am biased as an old C programmer, but there are times when the various Python conventions make things hard to follow. I find the indent convention a bit of an annoyance at times.
Sometimes, clarity of when a statement or block ends is very useful. Standard C code will often read something like this:
for(i=0; i<100; i++) {
do something here;
do another thing here;
}
continue doing things;
where you use the whitespace for a lot of clarity - and it is easy to see where the loop ends.
Python does let you terminate with an (optional) semicolon. As noted above, that does NOT mean that there is a statement to execute followed by a 'null' statement. SO, for example,
print(x);
print(y);
Is the same as
print(x)
print(y)
If you believe that the first one has a null statement at the end of each line, try - as suggested - doing this:
print(x);;
It will throw a syntax error.
Personally, I find the semicolon to make code more readable when you have lots of nesting and functions with many arguments and/or long-named args. So, to my eye, this is a lot clearer than other choices:
if some_boolean_is_true:
call_function(
long_named_arg_1,
long_named_arg_2,
long_named_arg_3,
long_named_arg_4
);
since, to me, it lets you know that last ')' ends some 'block' that ran over many lines.
I personally think there is much to much made of PEP style guidelines, IDEs that enforce them, and the belief there is 'only one Pythonic way to do things'. If you believe the latter, go look at how to format numbers: as of now, Python supports four different ways to do it.
I am sure I will be flamed by some diehards, but the compiler/interpreter doesn't care if the arguments have long or short names, and - but for the indentation convention in Python - doesn't care about whitespace. The biggest problem with code is giving clarity to another human (and even yourself after months of work) to understand what is going on, where things start and end, etc.
If both application have the same signature (meaning that both APPS are yours and signed with the same key), you can call your other app activity as follows:
Intent LaunchIntent = getActivity().getPackageManager().getLaunchIntentForPackage(CALC_PACKAGE_NAME);
startActivity(LaunchIntent);
Hope it helps.
do like
<input name="name" id="name" type="text" value="Name"
onblur="fillField(this,'Name');" onfocus="clearField(this,'Name');"/>
and js
function fillField(input,val) {
if(input.value == "")
input.value=val;
};
function clearField(input,val) {
if(input.value == val)
input.value="";
};
here is a demo fiddle of the same
I would use Bootstrap's grid to achieve the desired result. The class="img-responsive" works nicely. Something like:
<div class="container-fluid">
<div class="row">
<div class="col-md-3"><img src="./pictures/placeholder.jpg" class="img-responsive" alt="Some picture" width="410" height="307"></div>
<div class="col-md-9"><h1>Heading</h1><p>Your Information.</p></div>
</div>
</div>
INSERT INTO prices (group, id, price)
SELECT 7, articleId, 1.50 FROM article WHERE name LIKE 'ABC%'
You are using wrong JSON. In this case you should use JSON that looks like this:
["orange", "apple"]
If you have to accept JSON in that form :
{"fruits":["apple","orange"]}
You'll have to create wrapper object:
public class FruitWrapper{
List<String> fruits;
//getter
//setter
}
and then your controller method should look like this:
@RequestMapping(value = "/saveFruits", method = RequestMethod.POST,
consumes = "application/json")
@ResponseBody
public ResultObject saveFruits(@RequestBody FruitWrapper fruits){
...
}
Your code sample didn't expand on part of your topic, namely symbols, and so that part of the question went unanswered.
If you have two strings, foo and bar, and both can be either a string or a symbol, you can test equality with
foo.to_s == bar.to_s
It's a little more efficient to skip the string conversions on operands with known type. So if foo is always a string
foo == bar.to_s
But the efficiency gain is almost certainly not worth demanding any extra work on behalf of the caller.
Prior to Ruby 2.2, avoid interning uncontrolled input strings for the purpose of comparison (with strings or symbols), because symbols are not garbage collected, and so you can open yourself to denial of service through resource exhaustion. Limit your use of symbols to values you control, i.e. literals in your code, and trusted configuration properties.
Ruby 2.2 introduced garbage collection of symbols.
In order to simplify your life you can extend the HTMLElement
object. It might not work for older browsers, but definitely makes your life easier:
HTMLElement = typeof(HTMLElement) != 'undefined' ? HTMLElement : Element;
HTMLElement.prototype.prepend = function(element) {
if (this.firstChild) {
return this.insertBefore(element, this.firstChild);
} else {
return this.appendChild(element);
}
};
So next time you can do this:
document.getElementById('container').prepend(document.getElementById('block'));
// or
var element = document.getElementById('anotherElement');
document.body.prepend(div);
Add the runat="server" attribute to the tag, then you can reference it from the codebehind.
Even after adding @Autowire if your class is not a RestController or Configuration Class, the applicationContext object was coming as null. Tried Creating new class with below and it is working fine:
@Component
public class SpringContext implements ApplicationContextAware{
private static ApplicationContext applicationContext;
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws
BeansException {
this.applicationContext=applicationContext;
}
}
you can then implement a getter method in the same class as per your need like getting the Implemented class reference by:
applicationContext.getBean(String serviceName,Interface.Class)
ast.literal_eval
(located in ast.py
) parses the tree with ast.parse
first, then it evaluates the code with quite an ugly recursive function, interpreting the parse tree elements and replacing them with their literal equivalents. Unfortunately the code is not at all expandable, so to add Decimal
to the code you need to copy all the code and start over.
For a slightly easier approach, you can use ast.parse
module to parse the expression, and then the ast.NodeVisitor
or ast.NodeTransformer
to ensure that there is no unwanted syntax or unwanted variable accesses. Then compile with compile
and eval
to get the result.
The code is a bit different from literal_eval
in that this code actually uses eval
, but in my opinion is simpler to understand and one does not need to dig too deep into AST trees. It specifically only allows some syntax, explicitly forbidding for example lambdas, attribute accesses (foo.__dict__
is very evil), or accesses to any names that are not deemed safe. It parses your expression fine, and as an extra I also added Num
(float and integer), list and dictionary literals.
Also, works the same on 2.7 and 3.3
import ast
import decimal
source = "(Decimal('11.66985'), Decimal('1e-8'),"\
"(1,), (1,2,3), 1.2, [1,2,3], {1:2})"
tree = ast.parse(source, mode='eval')
# using the NodeTransformer, you can also modify the nodes in the tree,
# however in this example NodeVisitor could do as we are raising exceptions
# only.
class Transformer(ast.NodeTransformer):
ALLOWED_NAMES = set(['Decimal', 'None', 'False', 'True'])
ALLOWED_NODE_TYPES = set([
'Expression', # a top node for an expression
'Tuple', # makes a tuple
'Call', # a function call (hint, Decimal())
'Name', # an identifier...
'Load', # loads a value of a variable with given identifier
'Str', # a string literal
'Num', # allow numbers too
'List', # and list literals
'Dict', # and dicts...
])
def visit_Name(self, node):
if not node.id in self.ALLOWED_NAMES:
raise RuntimeError("Name access to %s is not allowed" % node.id)
# traverse to child nodes
return self.generic_visit(node)
def generic_visit(self, node):
nodetype = type(node).__name__
if nodetype not in self.ALLOWED_NODE_TYPES:
raise RuntimeError("Invalid expression: %s not allowed" % nodetype)
return ast.NodeTransformer.generic_visit(self, node)
transformer = Transformer()
# raises RuntimeError on invalid code
transformer.visit(tree)
# compile the ast into a code object
clause = compile(tree, '<AST>', 'eval')
# make the globals contain only the Decimal class,
# and eval the compiled object
result = eval(clause, dict(Decimal=decimal.Decimal))
print(result)
What about this?
(function($) {
$(function() {
// more code using $ as alias to jQuery
// will be fired when document is ready
});
})(jQuery);
You're misunderstanding escaping.
The extra "
characters are part of the string literal; they are interpreted by the compiler as a single "
.
The actual value of your string is still He said to me , "Hello World".How are you ?
, as you'll see if you print it at runtime.
sed
is the Stream EDitor. It can do a whole pile of really cool things, but the most common is text replacement.
The s,%,$,g
part of the command line is the sed
command to execute. The s
stands for substitute, the ,
characters are delimiters (other characters can be used; /
, :
and @
are popular). The %
is the pattern to match (here a literal percent sign) and the $
is the second pattern to match (here a literal dollar sign). The g
at the end means to g
lobally replace on each line (otherwise it would only update the first match).
Collection initializers are only available in VB.NET 2010, released 2010-04-12:
Dim theVar = New List(Of String) From { "one", "two", "three" }
To avoid the TOCTOU issue highlighted by Éric Araujo's comment, you can catch an exception to call the correct method:
def remove_file_or_dir(path: str) -> None:
""" Remove a file or directory """
try:
shutil.rmtree(path)
except NotADirectoryError:
os.remove(path)
Since shutil.rmtree()
will only remove directories and os.remove()
or os.unlink()
will only remove files.
Nope, it is more complicated than just calling a method, if you want to transparently add it into the user's calendar.
You've got a couple of choices;
Calling the intent to add an event on the calendar
This will pop up the Calendar application and let the user add the event. You can pass some parameters to prepopulate fields:
Calendar cal = Calendar.getInstance();
Intent intent = new Intent(Intent.ACTION_EDIT);
intent.setType("vnd.android.cursor.item/event");
intent.putExtra("beginTime", cal.getTimeInMillis());
intent.putExtra("allDay", false);
intent.putExtra("rrule", "FREQ=DAILY");
intent.putExtra("endTime", cal.getTimeInMillis()+60*60*1000);
intent.putExtra("title", "A Test Event from android app");
startActivity(intent);
Or the more complicated one:
Get a reference to the calendar with this method
(It is highly recommended not to use this method, because it could break on newer Android versions):
private String getCalendarUriBase(Activity act) {
String calendarUriBase = null;
Uri calendars = Uri.parse("content://calendar/calendars");
Cursor managedCursor = null;
try {
managedCursor = act.managedQuery(calendars, null, null, null, null);
} catch (Exception e) {
}
if (managedCursor != null) {
calendarUriBase = "content://calendar/";
} else {
calendars = Uri.parse("content://com.android.calendar/calendars");
try {
managedCursor = act.managedQuery(calendars, null, null, null, null);
} catch (Exception e) {
}
if (managedCursor != null) {
calendarUriBase = "content://com.android.calendar/";
}
}
return calendarUriBase;
}
and add an event and a reminder this way:
// get calendar
Calendar cal = Calendar.getInstance();
Uri EVENTS_URI = Uri.parse(getCalendarUriBase(this) + "events");
ContentResolver cr = getContentResolver();
// event insert
ContentValues values = new ContentValues();
values.put("calendar_id", 1);
values.put("title", "Reminder Title");
values.put("allDay", 0);
values.put("dtstart", cal.getTimeInMillis() + 11*60*1000); // event starts at 11 minutes from now
values.put("dtend", cal.getTimeInMillis()+60*60*1000); // ends 60 minutes from now
values.put("description", "Reminder description");
values.put("visibility", 0);
values.put("hasAlarm", 1);
Uri event = cr.insert(EVENTS_URI, values);
// reminder insert
Uri REMINDERS_URI = Uri.parse(getCalendarUriBase(this) + "reminders");
values = new ContentValues();
values.put( "event_id", Long.parseLong(event.getLastPathSegment()));
values.put( "method", 1 );
values.put( "minutes", 10 );
cr.insert( REMINDERS_URI, values );
You'll also need to add these permissions to your manifest for this method:
<uses-permission android:name="android.permission.READ_CALENDAR" />
<uses-permission android:name="android.permission.WRITE_CALENDAR" />
Update: ICS Issues
The above examples use the undocumented Calendar APIs, new public Calendar APIs have been released for ICS, so for this reason, to target new android versions you should use CalendarContract.
More infos about this can be found at this blog post.
Here is an example:
for i in range(80, 90): print(i, end=" ") if (i!=89) else print(i)
Output:
80 81 82 83 84 85 86 87 88 89
>>>
Use android:descendantFocusability
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="80dip"
android:background="@color/light_green"
android:descendantFocusability="blocksDescendants" >
Add above in root layout
Copy to Config File: /etc/mysql/my.cnf OR /bin/mysql/my.ini
[mysqld]
port = 3306
sql-mode=""
MySQL
restart.
Or you can also do
[mysqld]
port = 3306
SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
MySQL
restart.
It depends on the compile context (See Example below).
out
and ref
both denote variable passing by reference, yet ref
requires the variable to be initialized before being passed, which can be an important difference in the context of Marshaling (Interop: UmanagedToManagedTransition or vice versa)
Do not confuse the concept of passing by reference with the concept of reference types. The two concepts are not the same. A method parameter can be modified by ref regardless of whether it is a value type or a reference type. There is no boxing of a value type when it is passed by reference.
From the official MSDN Docs:
out
:The out keyword causes arguments to be passed by reference. This is similar to the ref keyword, except that ref requires that the variable be initialized before being passed
ref
:The ref keyword causes an argument to be passed by reference, not by value. The effect of passing by reference is that any change to the parameter in the method is reflected in the underlying argument variable in the calling method. The value of a reference parameter is always the same as the value of the underlying argument variable.
We can verify that the out and ref are indeed the same when the argument gets assigned:
CIL Example:
Consider the following example
static class outRefTest{
public static int myfunc(int x){x=0; return x; }
public static void myfuncOut(out int x){x=0;}
public static void myfuncRef(ref int x){x=0;}
public static void myfuncRefEmpty(ref int x){}
// Define other methods and classes here
}
in CIL, the instructions of myfuncOut
and myfuncRef
are identical as expected.
outRefTest.myfunc:
IL_0000: nop
IL_0001: ldc.i4.0
IL_0002: starg.s 00
IL_0004: ldarg.0
IL_0005: stloc.0
IL_0006: br.s IL_0008
IL_0008: ldloc.0
IL_0009: ret
outRefTest.myfuncOut:
IL_0000: nop
IL_0001: ldarg.0
IL_0002: ldc.i4.0
IL_0003: stind.i4
IL_0004: ret
outRefTest.myfuncRef:
IL_0000: nop
IL_0001: ldarg.0
IL_0002: ldc.i4.0
IL_0003: stind.i4
IL_0004: ret
outRefTest.myfuncRefEmpty:
IL_0000: nop
IL_0001: ret
nop: no operation, ldloc: load local, stloc: stack local, ldarg: load argument, bs.s: branch to target....
(See: List of CIL instructions )
There are several libraries available solving this problem, but the simplest is probably to use Boost Tokenizer:
#include <iostream>
#include <string>
#include <boost/tokenizer.hpp>
#include <boost/foreach.hpp>
typedef boost::tokenizer<boost::char_separator<char> > tokenizer;
std::string str("denmark;sweden;india;us");
boost::char_separator<char> sep(";");
tokenizer tokens(str, sep);
BOOST_FOREACH(std::string const& token, tokens)
{
std::cout << "<" << *tok_iter << "> " << "\n";
}
Use org.junit.Assert's method assertArrayEquals
:
import org.junit.Assert;
...
Assert.assertArrayEquals( expectedResult, result );
If this method is not available, you may have accidentally imported the Assert class from junit.framework
.
Edited: Kindly note that whereBetween('date',$start_date,$end_date)
is inclusive of the first date.
You can download the latest Plugin Manager version PluginManager_latest_version_x64.zip.
Unzip the file.
Copy
PluginManager_latest_version_x64.zip\updater\gpup.exe
into
path-to-installed-notepad\notepad++\updater\
PluginManager_latest_version_x64.zip\plugins\PluginManager.dll
into
path-to-installed-notepad\notepad++\plugins\
This is how to retrieve a Column Name from a DataColumn:
MyDataTable.Columns(1).ColumnName
To get the name of all DataColumns within your DataTable:
Dim name(DT.Columns.Count) As String
Dim i As Integer = 0
For Each column As DataColumn In DT.Columns
name(i) = column.ColumnName
i += 1
Next
References
You can find all of those operators in the Python language reference, though you'll have to scroll around a bit to find them all. As other answers have said:
**
operator does exponentiation. a ** b
is a
raised to the b
power. The same **
symbol is also used in function argument and calling notations, with a different meaning (passing and receiving arbitrary keyword arguments).^
operator does a binary xor. a ^ b
will return a value with only the bits set in a
or in b
but not both. This one is simple!%
operator is mostly to find the modulus of two integers. a % b
returns the remainder after dividing a
by b
. Unlike the modulus operators in some other programming languages (such as C), in Python a modulus it will have the same sign as b
, rather than the same sign as a
. The same operator is also used for the "old" style of string formatting, so a % b
can return a string if a
is a format string and b
is a value (or tuple of values) which can be inserted into a
.//
operator does Python's version of integer division. Python's integer division is not exactly the same as the integer division offered by some other languages (like C), since it rounds towards negative infinity, rather than towards zero. Together with the modulus operator, you can say that a == (a // b)*b + (a % b)
. In Python 2, floor division is the default behavior when you divide two integers (using the normal division operator /
). Since this can be unexpected (especially when you're not picky about what types of numbers you get as arguments to a function), Python 3 has changed to make "true" (floating point) division the norm for division that would be rounded off otherwise, and it will do "floor" division only when explicitly requested. (You can also get the new behavior in Python 2 by putting from __future__ import division
at the top of your files. I strongly recommend it!)<img src="/images/yourfile.png">
Store your files in public/images directory.
Android Studio 1.0 makes it easier to add a .jar file library to a project. Go to File>Project Structure and then Click on Dependencies. Over there you can add .jar files from your computer to the project. You can also search for libraries from maven.
If you're hosting on someone else's server and don't have access outside your webroot, you can always put your password and/or database connection in a file and then lock the file using a .htaccess:
<files mypasswdfile>
order allow,deny
deny from all
</files>
You can check instance of Chart
by using Chart.instances
.
This will give you all the charts instances.
Now you can iterate on that instances and and change the data, which is present inside config.
suppose you have only one chart in your page.
for (var _chartjsindex in Chart.instances) {
/*
* Here in the config your actual data and options which you have given at the
time of creating chart so no need for changing option only you can change data
*/
Chart.instances[_chartjsindex].config.data = [];
// here you can give add your data
Chart.instances[_chartjsindex].update();
// update will rewrite your whole chart with new value
}
def scrollToElement(element: WebElement) = {
val location = element.getLocation
driver.asInstanceOf[JavascriptExecutor].executeScript(s"window.scrollTo(${location.getX},${location.getY});")
}
Best would be not using LinkedList
at all, usually it is slower in all disciplines, and less handy. (When mainly inserting/deleting to the front, especially for big arrays LinkedList is faster)
Use ArrayList
, and iterate with
int len = list.size();
for (int i = 0; i < len; i++) {
Element ele = list.get(i);
}
Reset is trivial, just loop again.
If you insist on using an iterator, then you have to use a new iterator:
iter = list.listIterator();
(I saw only once in my life an advantage of LinkedList: i could loop through whith a while loop and remove the first element)
UPDATE table_name
SET field_name = '0'
WHERE field_name IS Null
Your system can't find npm package because you haven't add nodejs repository to your system..
Try follow this installation step:
Add nodejs PPA repository to our system and python software properties too
sudo apt-get install curl python-software-properties
// sudo apt-get install curl software-properties-common
curl -sL https://deb.nodesource.com/setup_10.x | sudo bash -
sudo apt-get update
Then install npm
sudo apt-get install nodejs
Check if npm and node was installed and you're ready to use node.js
node -v
npm -v
If someone was failed to install nodejs.. Try remove the npm first, maybe the old installation was broken..
sudo apt-get remove nodejs
sudo apt-get remove npm
Check if npm or node folder still exist, delete it if you found them
which node
which npm
echo $'Create the snapshots\nSnapshot created\n'
Update: 2017-01-10
Data URIs are now supported by all major browsers. IE supports embedding images since version 8 as well.
http://caniuse.com/#feat=datauri
Data URIs are now supported by the following web browsers:
- Gecko-based, such as Firefox, SeaMonkey, XeroBank, Camino, Fennec and K-Meleon
- Konqueror, via KDE's KIO slaves input/output system
- Opera (including devices such as the Nintendo DSi or Wii)
- WebKit-based, such as Safari (including on iOS), Android's browser, Epiphany and Midori (WebKit is a derivative of Konqueror's KHTML engine, but Mac OS X does not share the KIO architecture so the implementations are different), as well as Webkit/Chromium-based, such as Chrome
- Trident
- Internet Explorer 8: Microsoft has limited its support to certain "non-navigable" content for security reasons, including concerns that JavaScript embedded in a data URI may not be interpretable by script filters such as those used by web-based email clients. Data URIs must be smaller than 32 KiB in Version 8[3].
- Data URIs are supported only for the following elements and/or attributes[4]:
- object (images only)
- img
- input type=image
- link
- CSS declarations that accept a URL, such as background-image, background, list-style-type, list-style and similar.
- Internet Explorer 9: Internet Explorer 9 does not have 32KiB limitation and allowed in broader elements.
- TheWorld Browser: An IE shell browser which has a built-in support for Data URI scheme
http://en.wikipedia.org/wiki/Data_URI_scheme#Web_browser_support
Working with dplyr
library(dplyr)
df <- data.frame(A = factor(LETTERS[1:5]),
B = 1:5, C = as.logical(c(1, 1, 0, 0, 1)),
D = letters[1:5],
E = paste(LETTERS[1:5], letters[1:5]),
stringsAsFactors = FALSE)
str(df)
we get:
'data.frame': 5 obs. of 5 variables:
$ A: Factor w/ 5 levels "A","B","C","D",..: 1 2 3 4 5
$ B: int 1 2 3 4 5
$ C: logi TRUE TRUE FALSE FALSE TRUE
$ D: chr "a" "b" "c" "d" ...
$ E: chr "A a" "B b" "C c" "D d" ...
Now, we can convert all chr
to factors
:
df <- df%>%mutate_if(is.character, as.factor)
str(df)
And we get:
'data.frame': 5 obs. of 5 variables:
$ A: Factor w/ 5 levels "A","B","C","D",..: 1 2 3 4 5
$ B: int 1 2 3 4 5
$ C: logi TRUE TRUE FALSE FALSE TRUE
$ D: chr "a" "b" "c" "d" ...
$ E: chr "A a" "B b" "C c" "D d" ...
Let's provide also other solutions:
With base package:
df[sapply(df, is.character)] <- lapply(df[sapply(df, is.character)],
as.factor)
With dplyr
1.0.0
df <- df%>%mutate(across(where(is.factor), as.character))
With purrr
package:
library(purrr)
df <- df%>% modify_if(is.factor, as.character)
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