What about using .splitlines()
?
for line in textData.splitlines():
print(line)
lineResult = libLAPFF.parseLine(line)
I was searching an answer for this same question and found ENTRYPOINT in Dockerfile solution for me.
Dockerfile
...
ENTRYPOINT /my-script.sh ; /my-script2.sh ; /bin/bash
Now the scripts are executed when I start the container and I get the bash prompt after the scripts has been executed.
The best way would be just to use a Makefile for your project and ST3 will automatically detect build system for your project. For example. If you press shift + ctrl/cmd +B you will see this:
For Tomcat v8.5.4 and above, the file <tomcat>/webapps/manager/META-INF/context.xml
has been adjusted:
<Context antiResourceLocking="false" privileged="true" >
<Valve className="org.apache.catalina.valves.RemoteAddrValve"
allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" />
</Context>
Change this file to comment the Valve
:
<Context antiResourceLocking="false" privileged="true" >
<!--
<Valve className="org.apache.catalina.valves.RemoteAddrValve"
allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" />
-->
</Context>
After that, refresh your browser (not need to restart Tomcat), you can see the manager page.
Maybe this can help
string input = "hello123world";
bool isDigitPresent = input.Any(c => char.IsDigit(c));
answer from msdn.
I would suggest to read up a bit on the syntax. See here.
if (dsnt<0.05) {
wilcox.test(distance[result=='nt'],distance[result=='t'],alternative=c("two.sided"),paired=TRUE)
} else if (dst<0.05) {
wilcox.test(distance[result=='nt'],distance[result=='t'],alternative=c("two.sided"),paired=TRUE)
} else
t.test(distance[result=='nt'],distance[result=='t'],alternative=c("two.sided"),paired=TRUE)
As others have suggested, but wrapped in a function:
int char_to_digit(char c) {
return c - '0';
}
Now just use the function. If, down the line, you decide to use a different method, you just need to change the implementation (performance, charset differences, whatever), you wont need to change the callers.
This version assumes that c contains a char which represents a digit. You can check that before calling the function, using ctype.h's isdigit function.
In Addition to all the previous answers, I would do it using RxJS Observables
please check Observable.timer
Here is a sample code, will start after 2 seconds and then ticks every second:
import {Component} from 'angular2/core';
import {Observable} from 'rxjs/Rx';
@Component({
selector: 'my-app',
template: 'Ticks (every second) : {{ticks}}'
})
export class AppComponent {
ticks =0;
ngOnInit(){
let timer = Observable.timer(2000,1000);
timer.subscribe(t=>this.ticks = t);
}
}
And here is a working plunker
Update If you want to call a function declared on the AppComponent class, you can do one of the following:
** Assuming the function you want to call is named func,
ngOnInit(){
let timer = Observable.timer(2000,1000);
timer.subscribe(this.func);
}
The problem with the above approach is that if you call 'this' inside func, it will refer to the subscriber object instead of the AppComponent object which is probably not what you want.
However, in the below approach, you create a lambda expression and call the function func inside it. This way, the call to func is still inside the scope of AppComponent. This is the best way to do it in my opinion.
ngOnInit(){
let timer = Observable.timer(2000,1000);
timer.subscribe(t=> {
this.func(t);
});
}
check this plunker for working code.
Just add an view with the desired separator color as background color, 100% width, 1px height at the position x0 y-1 to your tableViewCell. Make sure the tableViewCell doesn't clip subviews, instead the tableView should.
So you get a absolut simple and working separator only between existing cells without any hack per code or IB.
Note: On a vertical top bounce the 1st separator shows up, but that shouldn't be a problem cause it's the default iOS behavior.
On linux with oracle-jdk the code the OP submitted uses port 7 when not root and ICMP when root. It does do a real ICMP echo request when run as root as the documentation specifies.
If you running this on a MS machine you may have to run the app as administrator to get the ICMP behaviour.
Basic difference : a 8-bit PNG comprises a max. of 256 colors. PNG-24 is a loss-less format and can contain up to 16 million colors.
Impacts:
This is the top hit on Google for "nginx redirect". If you got here just wanting to redirect a single location:
location = /content/unique-page-name {
return 301 /new-name/unique-page-name;
}
Bounds checked:
[a[index] for index in (1,2,5,20) if 0 <= index < len(a)]
# [11, 12, 15]
The lookup module of ansible works fine for me. The yml is:
- hosts: test
vars:
time: "{{ lookup('pipe', 'date -d \"1 day ago\" +\"%Y%m%d\"') }}"
You can replace any command with date to get result of the command.
! is "boolean not", which essentially typecasts the value of "enable" to its boolean opposite. The second ! flips this value. So, !!enable
means "not not enable," giving you the value of enable
as a boolean.
You need to give a relative file path of <a href="../index.html">Home</a>
Alternately you can specify a link from the root of your site with
<a href="/pages/en/index.html">Home</a>
..
and .
have special meanings in file paths, ..
means up one directory and .
means current directory.
so <a href="index.html">Home</a>
is the same as <a href="./index.html">Home</a>
It's worth mentioning that specifically for IE, disabled=disabled
works for anchor tags:
<a href="contact.html" onclick="unleashTheDragon();" disabled="disabled">Contact</a>
IE treats this as an disabled
element and does not trigger click event. However, disabled
is not a valid attribute on an anchor tag. Hence this won't work in other browsers. For them pointer-events:none
is required in the styling.
UPDATE 1: So adding following rule feels like a cross-browser solution to me
UPDATE 2: For further compatibility, because IE will not form styles for anchor tags with disabled='disabled'
, so they will still look active. Thus, a:hover{}
rule and styling is a good idea:
a[disabled="disabled"] {
pointer-events: none; /* this is enough for non-IE browsers */
color: darkgrey; /* IE */
}
/* IE - disable hover effects */
a[disabled="disabled"]:hover {
cursor:default;
color: darkgrey;
text-decoration:none;
}
Working on Chrome, IE11, and IE8.
Of course, above CSS assumes anchor tags are rendered with disabled="disabled"
Came up with this, and it seems to work at least in Firefox and the Opera browser.
if(top != self) {
top.onbeforeunload = function() {};
top.location.replace(self.location.href);
}
I have a bash solution like mogsie but with heredoc instead of herestring to allow you to avoid escaping double quotes
eval "cat <<EOF
$(<template.txt)
EOF
" 2> /dev/null
While not a complete tutorial on the subject of game engine design, I have found that this page has some good detail and examples on use of the component architecture for games.
A small addition to @ghostdog74's answer about using case
logic to check that array contains particular value:
myarray=(one two three)
word=two
case "${myarray[@]}" in ("$word "*|*" $word "*|*" $word") echo "found" ;; esac
Or with extglob
option turned on, you can do it like this:
myarray=(one two three)
word=two
shopt -s extglob
case "${myarray[@]}" in ?(*" ")"$word"?(" "*)) echo "found" ;; esac
Also we can do it with if
statement:
myarray=(one two three)
word=two
if [[ $(printf "_[%s]_" "${myarray[@]}") =~ .*_\[$word\]_.* ]]; then echo "found"; fi
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript">
function scollPos() {
var div = document.getElementById("myDiv").scrollTop;
document.getElementById("pos").innerHTML = div;
}
</script>
</head>
<body>
<form id="form1">
<div id="pos">
</div>
<div id="myDiv" style="overflow: auto; height: 200px; width: 200px;" onscroll="scollPos();">
Place some large content here
</div>
</form>
</body>
</html>
In my case, the customer forgot to add new IP address in their SMTP settings. Open IIS 6.0 in the server which sets up the smtp, right click Smtp virtual server, choose Properties, Access tab, click Connections, add IP address of the new server. Then click Relay, also add IP address of the new server. This solved my issue.
Changing IE's JSON mime-type settings will effect the way IE treats all JSON responses.
Changing the mime-type header to text/html will effectively tell any browser that the JSON response you are returning is not JSON but plain text.
Neither options are preferable.
Instead you would want to use a plugin or tool like the above mentioned Fiddler or any other network traffic inspector proxy where you can choose each time how to process the JSON response.
Extension methods (disclaimer: completely untested code, BTW...):
public static class ByteExtensions
{
public static string ToHexString(this byte[] ba)
{
StringBuilder hex = new StringBuilder(ba.Length * 2);
foreach (byte b in ba)
{
hex.AppendFormat("{0:x2}", b);
}
return hex.ToString();
}
}
etc.. Use either of Tomalak's three solutions (with the last one being an extension method on a string).
I use ngx-bootstrap for my project.
You can find the demo here
The github is here
How to use:
Install ngx-bootstrap
Import to your module
// RECOMMENDED (doesn't work with system.js) import { ModalModule } from 'ngx-bootstrap/modal'; // or import { ModalModule } from 'ngx-bootstrap'; @NgModule({ imports: [ModalModule.forRoot(),...] }) export class AppModule(){}
<button type="button" class="btn btn-primary" (click)="staticModal.show()">Static modal</button> <div class="modal fade" bsModal #staticModal="bs-modal" [config]="{backdrop: 'static'}" tabindex="-1" role="dialog" aria-labelledby="mySmallModalLabel" aria-hidden="true"> <div class="modal-dialog modal-sm"> <div class="modal-content"> <div class="modal-header"> <h4 class="modal-title pull-left">Static modal</h4> <button type="button" class="close pull-right" aria-label="Close" (click)="staticModal.hide()"> <span aria-hidden="true">×</span> </button> </div> <div class="modal-body"> This is static modal, backdrop click will not close it. Click <b>×</b> to close modal. </div> </div> </div> </div>
Just for the sake of completion: when parsing a date using strptime()
and the date contains the name of a day, month, etc, be aware that you have to account for the locale.
It's mentioned as a footnote in the docs as well.
As an example:
import locale
print(locale.getlocale())
>> ('nl_BE', 'ISO8859-1')
from datetime import datetime
datetime.strptime('6-Mar-2016', '%d-%b-%Y').strftime('%Y-%m-%d')
>> ValueError: time data '6-Mar-2016' does not match format '%d-%b-%Y'
locale.setlocale(locale.LC_ALL, 'en_US')
datetime.strptime('6-Mar-2016', '%d-%b-%Y').strftime('%Y-%m-%d')
>> '2016-03-06'
Well, the documentation does actually state that
CodeIgniter supports "flashdata", or session data that will only be available for the next server request, and are then automatically cleared.
as the very first thing, which obviusly means that you need to do a new server request. A redirect, a refresh, a link or some other mean to send the user to the next request.
Why use flashdata if you are using it in the same request, anyway? You'd might as well not use flashdata or use a regular session.
I do not know much about JavaScript, but I think Timers may be what you are looking for.
http://developer.android.com/reference/java/util/Timer.html
From the link:
One-shot are scheduled to run at an absolute time or after a relative delay. Recurring tasks are scheduled with either a fixed period or a fixed rate.
Try something like the following example, quoted from the output of IF /?
on Windows XP:
IF EXIST filename. ( del filename. ) ELSE ( echo filename. missing. )
You can also check for a missing file with IF NOT EXIST
.
The IF
command is quite powerful. The output of IF /?
will reward careful reading. For that matter, try the /?
option on many of the other built-in commands for lots of hidden gems.
If you don't really need the button element, just move the classes to a regular link:
<div class="btn-group">
<a href="/save/1" class="btn btn-primary active">
<i class="glyphicon glyphicon-floppy-disk" aria-hidden="true"></i> Save
</a>
<a href="/cancel/1" class="btn btn-default">Cancel</a>
</div>
Conversely, you can also change a button to appear like a link:
<button type="button" class="btn btn-link">Link</button>
There is a setting you can alter called 'multi statement' that disables MySQL's 'safety mechanism' implemented to prevent (more than one) injection command. Typical to MySQL's 'brilliant' implementation, it also prevents user from doing efficient queries.
Here (http://dev.mysql.com/doc/refman/5.1/en/mysql-set-server-option.html) is some info on the C implementation of the setting.
If you're using PHP, you can use mysqli to do multi statements (I think php has shipped with mysqli for a while now)
$con = new mysqli('localhost','user1','password','my_database');
$query = "Update MyTable SET col1='some value' WHERE id=1 LIMIT 1;";
$query .= "UPDATE MyTable SET col1='other value' WHERE id=2 LIMIT 1;";
//etc
$con->multi_query($query);
$con->close();
Hope that helps.
Check this out: http://qrdroid.com/web-masters.php
You can create a link in your web form, something like:
http://qrdroid.com/scan?q=http://www.your-site.com/your-form.php?code={CODE}
When somebody clicks that link, an app to scan the code will be opened. After the user scans the code, http://www.your-site.com/your-form.php?code={CODE} will be automatically called. You can then make your-form.php read the parameter code to prepopulate the field.
The other answers are severely outdated. With Android Studio, this is the way to do it:
Well, for just getting the filename of your batch the easiest way would be to just use %~n0
.
@echo %~n0
will output the name (without the extension) of the currently running batch file (unless executed in a subroutine called by call
). The complete list of such “special” substitutions for path names can be found with help for
, at the very end of the help:
In addition, substitution of FOR variable references has been enhanced. You can now use the following optional syntax:
%~I - expands %I removing any surrounding quotes (") %~fI - expands %I to a fully qualified path name %~dI - expands %I to a drive letter only %~pI - expands %I to a path only %~nI - expands %I to a file name only %~xI - expands %I to a file extension only %~sI - expanded path contains short names only %~aI - expands %I to file attributes of file %~tI - expands %I to date/time of file %~zI - expands %I to size of file %~$PATH:I - searches the directories listed in the PATH environment variable and expands %I to the fully qualified name of the first one found. If the environment variable name is not defined or the file is not found by the search, then this modifier expands to the empty string
The modifiers can be combined to get compound results:
%~dpI - expands %I to a drive letter and path only %~nxI - expands %I to a file name and extension only %~fsI - expands %I to a full path name with short names only
To precisely answer your question, however: Substrings are done using the :~start,length
notation:
%var:~10,5%
will extract 5 characters from position 10 in the environment variable %var%
.
NOTE: The index of the strings is zero based, so the first character is at position 0, the second at 1, etc.
To get substrings of argument variables such as %0
, %1
, etc. you have to assign them to a normal environment variable using set
first:
:: Does not work:
@echo %1:~10,5
:: Assign argument to local variable first:
set var=%1
@echo %var:~10,5%
The syntax is even more powerful:
%var:~-7%
extracts the last 7 characters from %var%
%var:~0,-4%
would extract all characters except the last four which would also rid you of the file extension (assuming three characters after the period [.
]).See help set
for details on that syntax.
namespace: modules are namespaces...which don't exist in java ;)
I also switched from Java and python to Ruby, I remember had exactly this same question...
So the simplest answer is that module is a namespace, which doesn't exist in Java. In java the closest mindset to namespace is a package.
So a module in ruby is like what in java:
class? No
interface? No
abstract class? No
package? Yes (maybe)
static methods inside classes in java: same as methods inside modules in ruby
In java the minimum unit is a class, you can't have a function outside of a class. However in ruby this is possible (like python).
So what goes into a module?
classes, methods, constants. Module protects them under that namespace.
No instance: modules can't be used to create instances
Mixed ins: sometimes inheritance models are not good for classes, but in terms of functionality want to group a set of classes/ methods/ constants together
Rules about modules in ruby:
- Module names are UpperCamelCase
- constants within modules are ALL CAPS (this rule is the same for all ruby constants, not specific to modules)
- access methods: use . operator
- access constants: use :: symbol
simple example of a module:
module MySampleModule
CONST1 = "some constant"
def self.method_one(arg1)
arg1 + 2
end
end
how to use methods inside a module:
puts MySampleModule.method_one(1) # prints: 3
how to use constants of a module:
puts MySampleModule::CONST1 # prints: some constant
Some other conventions about modules:
Use one module in a file (like ruby classes, one class per ruby file)
It's a bit late but might be helpful for future reference. I had just had the same issue and I think it's because the macro was placed at the worksheet level. Right click on the modules node on the VBA project window, click on "Insert" => "Module", then paste your macro in the new module (make sure you delete the one recorded at the worksheet level).
Webkit browsers like Safari and Chrome subtract the scroll bar width from the visible page width when calculating width: 100% or 100vw. More at DM Rutherford's Scrolling and Page Width.
Try using overflow-y: overlay
instead.
Put the UNIQUE declaration within the column definition section; working example:
CREATE TABLE a (
i INT,
j INT,
UNIQUE(i, j) ON CONFLICT REPLACE
);
Well, one classic example is where you wanted to get a list of employees and their immediate managers:
select e.employee as employee, b.employee as boss
from emptable e, emptable b
where e.manager_id = b.empolyee_id
order by 1
It's basically used where there is any relationship between rows stored in the same table.
And so on...
TLS 1.2
is only supported since OpenSSL 1.0.1
(see the Major version releases section), you have to update your OpenSSL
.
It is not necessary to set the CURLOPT_SSLVERSION
option. The request involves a handshake which will apply the newest TLS
version both server and client support. The server you request is using TLS 1.2
, so your php_curl
will use TLS 1.2
(by default) as well if your OpenSSL
version is (or newer than) 1.0.1
.
Since typeof
is a compiler extension, there is not really a definition for it, but in the tradition of C it would be an operator, e.g sizeof
and _Alignof
are also seen as an operators.
And you are mistaken, C has dynamic types that are only determined at run time: variable modified (VM) types.
size_t n = strtoull(argv[1], 0, 0);
double A[n][n];
typeof(A) B;
can only be determined at run time.
With the Material Components Library you can use the MaterialButtonToggleGroup
:
<com.google.android.material.button.MaterialButtonToggleGroup
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:checkedButton="@id/b1"
app:selectionRequired="true"
app:singleSelection="true">
<Button
style="?attr/materialButtonOutlinedStyle"
android:id="@+id/b1"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:text="OPT1" />
<Button
style="?attr/materialButtonOutlinedStyle"
android:id="@+id/b2"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:text="OPT2" />
</com.google.android.material.button.MaterialButtonToggleGroup>
unnest2()
as exerciseOlder versions before pg v8.4 need a user-defined unnest()
. We can adapt this old function to return elements with an index:
CREATE FUNCTION unnest2(anyarray)
RETURNS setof record AS
$BODY$
SELECT $1[i], i
FROM generate_series(array_lower($1,1),
array_upper($1,1)) i;
$BODY$ LANGUAGE sql IMMUTABLE;
You'll have to traverse by hand.
var aTags = document.getElementsByTagName("a");
var searchText = "SearchingText";
var found;
for (var i = 0; i < aTags.length; i++) {
if (aTags[i].textContent == searchText) {
found = aTags[i];
break;
}
}
// Use `found`.
x = float(raw_input("enter number between 0 and 1: "))
p = 0
while ((2**p)*x) %1 != 0:
p += 1
# print p
num = int (x * (2 ** p))
# print num
result = ''
if num == 0:
result = '0'
while num > 0:
result = str(num%2) + result
num = num / 2
for i in range (p - len(result)):
result = '0' + result
result = result[0:-p] + '.' + result[-p:]
print result #this will print result for the decimal portion
Fast
fun unicodeDecode(unicode: String): String {
val stringBuffer = StringBuilder()
var i = 0
while (i < unicode.length) {
if (i + 1 < unicode.length)
if (unicode[i].toString() + unicode[i + 1].toString() == "\\u") {
val symbol = unicode.substring(i + 2, i + 6)
val c = Integer.parseInt(symbol, 16)
stringBuffer.append(c.toChar())
i += 5
} else stringBuffer.append(unicode[i])
i++
}
return stringBuffer.toString()
}
Take a look at erichynds dropdown multiselect with huge amount of settings and tunings.
After you've installed Express V x.x.x You need to choose an template view-engine. There are many really easy to learn. My personal go-to is EJS.
Other really great and easy to learn could be:
To install EJS (And fix your error) Run in root of your project:
npm install ejs
Or if you're using Yarn:
yarn add ejs
Next you'll need to require the module, so open up your file where you require express (usually app.js or server.js)
add below var express = require('express');
var ejs = require('ejs');
You can follow uploaded images
Then select which database you want to delete
Example query:
DELETE FROM Table
WHERE ID NOT IN
(
SELECT MIN(ID)
FROM Table
GROUP BY Field1, Field2, Field3, ...
)
Here fields
are column on which you want to group the duplicate rows.
I ran into this exact same error message. I tried Aditi's example, and then I realized what the real issue was. (Because I had another apiEndpoint making a similar call that worked fine.) In this case The object in my list had not had an interface extracted from it yet. So because I apparently missed a step, when it went to do the bind to the
List<OfthisModelType>
It failed to deserialize.
If you see this issue, check to see if that could be the issue.
Here's what I've done:
.resize {
width: 400px;
height: auto;
}
.resize {
width: 300px;
height: auto;
}
<img class="resize" src="example.jpg"/>
This will keep the image aspect ratio the same.
UPDATED ANSWER:
Old answer, correct method nowadays is to use jQuery's .prop()
. IE, element.prop("selected", true)
OLD ANSWER:
Use this instead:
$("#routetype option[value='quietest']").attr("selected", "selected");
Fiddle'd: http://jsfiddle.net/x3UyB/4/
Some ideas:
1. Run a SELECT statement to filter your data
2. Click on the top-left corner to select all rows
3. Right-click to copy all the selected
4. Paste the copied content on Microsoft Excel
5. Save as CSV
Example:
From the command prompt, you can run the query and export it to a file:
sqlcmd -S . -d DatabaseName -E -s, -W -Q "SELECT * FROM TableName" > C:\Test.csv
Do not quote separator use just -s, and not quotes -s',' unless you want to set quote as separator.
More information here: ExcelSQLServer
Notes:
This approach will have the "Rows affected" information in the bottom of the file, but you can get rid of this by using the "SET NOCOUNT ON" in the query itself.
You may run a stored procedure instead of the actual query (e.g. "EXEC Database.dbo.StoredProcedure")
Example:
bcp "SELECT * FROM Database.dbo.Table" queryout C:\Test.csv -c -t',' -T -S .\SQLEXPRESS
It is important to quote the comma separator as -t',' vs just -t,
More information here: bcp Utility
Notes:
Hope this helps.
Here is NGINX solution
file
/usr/local/nginx/conf/mime.types
add
font/ttf ttf;
font/opentype otf;
application/font-woff woff2;
application/font-woff woff;
application/vnd.ms-fontobject eot;
remove
application/octet-stream eot;
Thanks to Mike Fulcher
There is no straight forward way of doing this.
What you can do is load the script on demand. (again uses something similar to what Ignacio mentioned,but much cleaner).
Check this link out for multiple ways of doing this: http://ajaxpatterns.org/On-Demand_Javascript
My favorite is(not applicable always):
<script src="dojo.js" type="text/javascript">
dojo.require("dojo.aDojoPackage");
Google's closure also provides similar functionality.
If you want a solution that also works in /bin/sh
try
first_arg="$1"
shift
echo First argument: "$first_arg"
echo Remaining arguments: "$@"
shift [n]
shifts the positional parameters n times. A shift
sets the value of $1
to the value of $2
, the value of $2
to the value of $3
, and so on, decreasing the value of $#
by one.
Another interesting project is texlive.js.
It allows you to compile (La)TeX to PDF in the browser.
This is more a workaround than a real solution. You can create a new object test_data
with another column name:
left_join("names<-"(test_data, "name"), kantrowitz, by = "name")
name gender
1 john M
2 bill either
3 madison M
4 abby either
5 zzz <NA>
As @Devart says, the total length of your index is too long.
The short answer is that you shouldn't be indexing such long VARCHAR columns anyway, because the index will be very bulky and inefficient.
The best practice is to use prefix indexes so you're only indexing a left substring of the data. Most of your data will be a lot shorter than 255 characters anyway.
You can declare a prefix length per column as you define the index. For example:
...
KEY `index` (`parent_menu_id`,`menu_link`(50),`plugin`(50),`alias`(50))
...
But what's the best prefix length for a given column? Here's a method to find out:
SELECT
ROUND(SUM(LENGTH(`menu_link`)<10)*100/COUNT(`menu_link`),2) AS pct_length_10,
ROUND(SUM(LENGTH(`menu_link`)<20)*100/COUNT(`menu_link`),2) AS pct_length_20,
ROUND(SUM(LENGTH(`menu_link`)<50)*100/COUNT(`menu_link`),2) AS pct_length_50,
ROUND(SUM(LENGTH(`menu_link`)<100)*100/COUNT(`menu_link`),2) AS pct_length_100
FROM `pds_core_menu_items`;
It tells you the proportion of rows that have no more than a given string length in the menu_link
column. You might see output like this:
+---------------+---------------+---------------+----------------+
| pct_length_10 | pct_length_20 | pct_length_50 | pct_length_100 |
+---------------+---------------+---------------+----------------+
| 21.78 | 80.20 | 100.00 | 100.00 |
+---------------+---------------+---------------+----------------+
This tells you that 80% of your strings are less than 20 characters, and all of your strings are less than 50 characters. So there's no need to index more than a prefix length of 50, and certainly no need to index the full length of 255 characters.
PS: The INT(1)
and INT(32)
data types indicates another misunderstanding about MySQL. The numeric argument has no effect related to storage or the range of values allowed for the column. INT
is always 4 bytes, and it always allows values from -2147483648 to 2147483647. The numeric argument is about padding values during display, which has no effect unless you use the ZEROFILL
option.
it is worth mentioning smart-open that uses boto3
as a back-end.
smart-open
is a drop-in replacement for python's open
that can open files from s3
, as well as ftp
, http
and many other protocols.
for example
from smart_open import open
import json
with open("s3://your_bucket/your_key.json", 'r') as f:
data = json.load(f)
The aws credentials are loaded via boto3 credentials, usually a file in the ~/.aws/
dir or an environment variable.
Some people argue that a method should have a single point of exit (e.g., only one return
). Personally, I think that trying to stick to that rule produces code that's harder to read. In your example, as soon as you find what you were looking for, return it immediately, it's clear and it's efficient.
The original significance of having a single entry and single exit for a function is that it was part of the original definition of StructuredProgramming as opposed to undisciplined goto SpaghettiCode, and allowed a clean mathematical analysis on that basis.
Now that structured programming has long since won the day, no one particularly cares about that anymore, and the rest of the page is largely about best practices and aesthetics and such, not about mathematical analysis of structured programming constructs.
How about this?
$( document ).ready(function() {
$('#fixed').width($('#wrap').width());
});
By using jquery you can set any kind of width :)
EDIT: As stated by dream in the comments, using JQuery just for this effect is pointless and even counter productive. I made this example for people who use JQuery for other stuff on their pages and consider using it for this part also. I apologize for any inconvenience my answer caused.
What about having a live validation on the textbox, and once it goes over 2000 (or whatever the maximum threshold is) then display 'This email is too long to be completed in the browser, please <span class="launchEmailClientLink">launch what you have in your email client</span>
'
To which I'd have
.launchEmailClientLink {
cursor: pointer;
color: #00F;
}
and jQuery this into your onDomReady
$('.launchEmailClientLink').bind('click',sendMail);
I was facing the same situation.
I begin by declaring the structures I need:
Set<String> myKeysInSet = null;
String[] myArrayOfString = null;
In my case, I have a JSON object and I need all the keys in this JSON to be stored in an array of strings. Using the GSON library, I use JSON.keySet() to get the keys and move to my Set :
myKeysInSet = json_any.keySet();
With this, I have a Set structure with all the keys, as I needed it. So I just need to the values to my Array of Strings. See the code below:
myArrayOfString = myKeysInSet.toArray(new String[myKeysInSet.size()]);
This was my first answer in StackOverflow. Sorry for any error :D
You don't have to bind parameters if you use query builder or eloquent ORM. However, if you use DB::raw()
, ensure that you binding the parameters.
Try the following:
$array = array(1,2,3); $query = DB::table('offers'); $query->select('id', 'business_id', 'address_id', 'title', 'details', 'value', 'total_available', 'start_date', 'end_date', 'terms', 'type', 'coupon_code', 'is_barcode_available', 'is_exclusive', 'userinformations_id', 'is_used'); $query->leftJoin('user_offer_collection', function ($join) use ($array) { $join->on('user_offer_collection.offers_id', '=', 'offers.id') ->whereIn('user_offer_collection.user_id', $array); }); $query->get();
If you subtract two instances of DateTime,
that will return an instance of TimeSpan, which will represent the difference between the two dates.
Service Oriented Architecture (SOA) is a software architectural style that builds applications as a collection of pluggable parts, each of which can be reused by other applications.
I too can use only Java 6. I used @EvgeniyDorofeev's thread scanner implementation. In my code, after a process finishes, I have to immediately execute two other processes that each compare the redirected output (a diff-based unit test to ensure stdout and stderr are the same as the blessed ones).
The scanner threads don't finish soon enough, even if I waitFor() the process to complete. To make the code work correctly, I have to make sure the threads are joined after the process finishes.
public static int runRedirect (String[] args, String stdout_redirect_to, String stderr_redirect_to) throws IOException, InterruptedException {
ProcessBuilder b = new ProcessBuilder().command(args);
Process p = b.start();
Thread ot = null;
PrintStream out = null;
if (stdout_redirect_to != null) {
out = new PrintStream(new BufferedOutputStream(new FileOutputStream(stdout_redirect_to)));
ot = inheritIO(p.getInputStream(), out);
ot.start();
}
Thread et = null;
PrintStream err = null;
if (stderr_redirect_to != null) {
err = new PrintStream(new BufferedOutputStream(new FileOutputStream(stderr_redirect_to)));
et = inheritIO(p.getErrorStream(), err);
et.start();
}
p.waitFor(); // ensure the process finishes before proceeding
if (ot != null)
ot.join(); // ensure the thread finishes before proceeding
if (et != null)
et.join(); // ensure the thread finishes before proceeding
int rc = p.exitValue();
return rc;
}
private static Thread inheritIO (final InputStream src, final PrintStream dest) {
return new Thread(new Runnable() {
public void run() {
Scanner sc = new Scanner(src);
while (sc.hasNextLine())
dest.println(sc.nextLine());
dest.flush();
}
});
}
To do this without any headache:
git status
, let's say branch "development".git clone
the project from repository.git checkout development
.rsync
, excluding .git folder: rsync -azv --exclude '.git' gitrepo1 newrepo/gitrepo1
. You don't have to do this with rsync
of course, but it does it so smooth.The benefit of this approach: you are good to continue exactly where you left off: your older branch, unstaged changes, etc.
Try this, I work myself to do so
\i 'somedir\\script2.sql'
I had the same problem with Pool()
in Python 3.6.3.
Error received: TypeError: can't pickle _thread.RLock objects
Let's say we want to add some number num_to_add
to each element of some list num_list
in parallel. The code is schematically like this:
class DataGenerator:
def __init__(self, num_list, num_to_add)
self.num_list = num_list # e.g. [4,2,5,7]
self.num_to_add = num_to_add # e.g. 1
self.run()
def run(self):
new_num_list = Manager().list()
pool = Pool(processes=50)
results = [pool.apply_async(run_parallel, (num, new_num_list))
for num in num_list]
roots = [r.get() for r in results]
pool.close()
pool.terminate()
pool.join()
def run_parallel(self, num, shared_new_num_list):
new_num = num + self.num_to_add # uses class parameter
shared_new_num_list.append(new_num)
The problem here is that self
in function run_parallel()
can't be pickled as it is a class instance. Moving this parallelized function run_parallel()
out of the class helped. But it's not the best solution as this function probably needs to use class parameters like self.num_to_add
and then you have to pass it as an argument.
Solution:
def run_parallel(num, shared_new_num_list, to_add): # to_add is passed as an argument
new_num = num + to_add
shared_new_num_list.append(new_num)
class DataGenerator:
def __init__(self, num_list, num_to_add)
self.num_list = num_list # e.g. [4,2,5,7]
self.num_to_add = num_to_add # e.g. 1
self.run()
def run(self):
new_num_list = Manager().list()
pool = Pool(processes=50)
results = [pool.apply_async(run_parallel, (num, new_num_list, self.num_to_add)) # num_to_add is passed as an argument
for num in num_list]
roots = [r.get() for r in results]
pool.close()
pool.terminate()
pool.join()
Other suggestions above didn't help me.
from timeit import timeit
from re import search, DOTALL
def partition_find(string, start, end):
return string.partition(start)[2].rpartition(end)[0]
def re_find(string, start, end):
# applying re.escape to start and end would be safer
return search(start + '(.*)' + end, string, DOTALL).group(1)
def index_find(string, start, end):
return string[string.find(start) + len(start):string.rfind(end)]
# The wikitext of "Alan Turing law" article form English Wikipeida
# https://en.wikipedia.org/w/index.php?title=Alan_Turing_law&action=edit&oldid=763725886
string = """..."""
start = '==Proposals=='
end = '==Rival bills=='
assert index_find(string, start, end) \
== partition_find(string, start, end) \
== re_find(string, start, end)
print('index_find', timeit(
'index_find(string, start, end)',
globals=globals(),
number=100_000,
))
print('partition_find', timeit(
'partition_find(string, start, end)',
globals=globals(),
number=100_000,
))
print('re_find', timeit(
're_find(string, start, end)',
globals=globals(),
number=100_000,
))
Result:
index_find 0.35047444528454114
partition_find 0.5327825636197754
re_find 7.552149639286381
re_find
was almost 20 times slower than index_find
in this example.
Primary Key: identify uniquely every row it can not be null. it can not be a duplicate.
Foreign Key: create relationship between two tables. can be null. can be a duplicate
grouped=df.groupby(['Team','Year'])['W'].count().reset_index()
team_wins_df=pd.DataFrame(grouped)
team_wins_df=team_wins_df.rename({'W':'Wins'},axis=1)
team_wins_df['Wins']=team_wins_df['Wins'].astype(np.int32)
team_wins_df.reset_index()
print(team_wins_df)
You need to use get
to obtain the value rather than the character name of the object as returned by ls
:
x <- 1L
typeof(ls())
[1] "character"
typeof(get(ls()))
[1] "integer"
Alternatively, for the problem as presented you might want to use eapply
:
eapply(.GlobalEnv,typeof)
$x
[1] "integer"
$a
[1] "double"
$b
[1] "character"
$c
[1] "list"
I had this issue with an MVC project and here is how I fixed it.
Find :
bundles.Add(new ScriptBundle("~/bundles/bootstrap").Include("~/Scripts/bootstrap.js"));
Change to:
bundles.Add(new ScriptBundle("~/bundles/bootstrap").Include("~/Scripts/bootstrap.bundle.min.js"));
This will set the bundle file to load. It is already in the correct order. You just have to make sure that you are rendering this bundle in your view.
If it's a PHP issue, you could simply alter the configuration file php.ini wherever it's located and update the settings for PORT/SOCKET-PATH etc to make it connect to the server.
In my case, I opened the file php.ini and did
mysql.default_socket = /var/run/mysqld/mysqld.sock
mysqli.default_socket = /var/run/mysqld/mysqld.sock
And it worked straight away. I have to admit, I took hint from the accepted answer by @Joni
It was a little difficult because it was different in the previous API, but I found a solution. Google says what to do here; according with the question we need com.google.android.gms
classes so it is necessary to setup the google play services
, which is just a library that we have to add to our project like this link . It's very important to import the copy of the project library google-play-services_lib
not the one that is in the sdk folder. Once that's done, the tutorial from Google goes perfectly.
In android studio you can specify where the source, res, assets folders are located. for each module/app in the build.gradle file you can add something like:
android {
compileSdkVersion 21
buildToolsVersion "21.1.1"
sourceSets {
main {
java.srcDirs = ['src']
assets.srcDirs = ['assets']
res.srcDirs = ['res']
manifest.srcFile 'AndroidManifest.xml'
}
}
}
EDIT: Sorry, I should have remembered that this machine is decidedly non-standard, having plugged in various non-standard libc
implementations for academic purposes ;-)
As itoa()
is indeed non-standard, as mentioned by several helpful commenters, it is best to use sprintf(target_string,"%d",source_int)
or (better yet, because it's safe from buffer overflows) snprintf(target_string, size_of_target_string_in_bytes, "%d", source_int)
. I know it's not quite as concise or cool as itoa()
, but at least you can Write Once, Run Everywhere (tm) ;-)
You are correct in stating that the default gcc libc
does not include itoa()
, like several other platforms, due to it not technically being a part of the standard. See here for a little more info. Note that you have to
#include <stdlib.h>
Of course you already know this, because you wanted to use itoa()
on Linux after presumably using it on another platform, but... the code (stolen from the link above) would look like:
Example
/* itoa example */
#include <stdio.h>
#include <stdlib.h>
int main ()
{
int i;
char buffer [33];
printf ("Enter a number: ");
scanf ("%d",&i);
itoa (i,buffer,10);
printf ("decimal: %s\n",buffer);
itoa (i,buffer,16);
printf ("hexadecimal: %s\n",buffer);
itoa (i,buffer,2);
printf ("binary: %s\n",buffer);
return 0;
}
Output:
Enter a number: 1750 decimal: 1750 hexadecimal: 6d6 binary: 11011010110
Hope this helps!
In addition to @JBNizet's answer, my general use case for ifPresent
is to combine .isPresent()
and .get()
:
Old way:
Optional opt = getIntOptional();
if(opt.isPresent()) {
Integer value = opt.get();
// do something with value
}
New way:
Optional opt = getIntOptional();
opt.ifPresent(value -> {
// do something with value
})
This, to me, is more intuitive.
API Key is your developer key. Hit https://www.googleapis.com/webfonts/v1/webfonts?key= in your browser by enabling web fonts api and you will see result.
Refer this blog http://code.garyjones.co.uk/google-developer-api-key/ for more information
overrides:
- files: *-tests.js
rules:
no-param-reassign: 0
You can also set a specific env for a folder, like this :
overrides:
- files: test/*-tests.js
env:
mocha: true
This configuration will fix error message about describe
and it
not defined, only for your test folder:
/myproject/test/init-tests.js
6:1 error 'describe' is not defined no-undef
9:3 error 'it' is not defined no-undef
Correlated Subquery is a sub-query that uses values from the outer query. In this case the inner query has to be executed for every row of outer query.
See example here http://en.wikipedia.org/wiki/Correlated_subquery
Simple subquery doesn't use values from the outer query and is being calculated only once:
SELECT id, first_name
FROM student_details
WHERE id IN (SELECT student_id
FROM student_subjects
WHERE subject= 'Science');
CoRelated Subquery Example -
Query To Find all employees whose salary is above average for their department
SELECT employee_number, name
FROM employees emp
WHERE salary > (
SELECT AVG(salary)
FROM employees
WHERE department = emp.department);
The way you are using await/async is poor at best, and it makes it hard to follow. You are mixing await
with Task'1.Result
, which is just confusing. However, it looks like you are looking at a final task result, rather than the contents.
I've rewritten your function and function call, which should fix your issue:
async Task<string> GetResponseString(string text)
{
var httpClient = new HttpClient();
var parameters = new Dictionary<string, string>();
parameters["text"] = text;
var response = await httpClient.PostAsync(BaseUri, new FormUrlEncodedContent(parameters));
var contents = await response.Content.ReadAsStringAsync();
return contents;
}
And your final function call:
Task<string> result = GetResponseString(text);
var finalResult = result.Result;
Or even better:
var finalResult = await GetResponseString(text);
SELECT set_config('log_statement', 'all', true);
With a corresponding user right may use the query above after connect. This will affect logging until session ends.
Here is how to correctly escape arbitrary filenames of uploaded files with bash
:
#!/bin/bash
set -eu
f="$1"
f=${f//\\/\\\\}
f=${f//\"/\\\"}
f=${f//;/\\;}
curl --silent --form "uploaded=@\"$f\"" "$2"
There are padding built into various classes.
For example:
A asp.net web forms app:
<asp:CheckBox ID="chkShowDeletedServers" runat="server" AutoPostBack="True" Text="Show Deleted" />
this code above would place the Text of "Show Deleted" too close to the checkbox to what I see at nice to look at.
However with bootstrap
<div class="checkbox-inline">
<asp:CheckBox ID="chkShowDeletedServers" runat="server" AutoPostBack="True" Text="Show Deleted" />
</div>
This created the space, if you don't want the text bold, that class=checkbox
Bootstrap is very flexible, so in this case I don't need a hack, but sometimes you need to.
If you are using intellij go to Run > Edit Configurations
menu setting. A dialog box will appear. Now you can add arguments to the Program arguments
input field.
You do not need to use the while True:
loop in this case. There is a much simpler way to use the time condition directly:
import time
# timeout variable can be omitted, if you use specific value in the while condition
timeout = 300 # [seconds]
timeout_start = time.time()
while time.time() < timeout_start + timeout:
test = 0
if test == 5:
break
test -= 1
Use readline.get_current_history_length()
to get the length, and readline.get_history_item()
to view each.
An option that I am starting to really like for running applications on my local computer is to use Docker. You can simply run your application within the official JDK container - meaning that you don't have to worry about getting everything set up on your local machine (or worry about running multiple different versions of the JDK for different apps etc)
Although this might not help you with your current installation issues, it is a solution which means you can side-step the minefield of issues related with trying to get Java running correctly on your dev machine!
The benefits are:
A very simple example:
Create a Dockerfile
:
FROM java:8
COPY . /usr/src/myapp
WORKDIR /usr/src/myapp
java:8
- to use Java 7, you could just specify: java:7
) /usr/src/myapp
inside the containerCreate a docker-compose.yml
file:
version: "2"
services:
java:
build: .
volumes:
- .:/usr/src/myapp
Now, assume we have this Java file:
HelloWorld.java
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World");
}
}
So we have the following file structure:
.
|_ Dockerfile
|_ docker-compose.yml
|_ HelloWorld.java
You can do various Java things like:
compile:
docker-compose run --rm java javac HelloWorld.java
run:
docker-compose run --rm java java HelloWorld
docker-compose run
- runs a command from within the container-rm
tells docker to remove the container once the command is finished runningjava
is the name of the service/container (from our docker-compose file) against which this command will runThis is quite a cool way of dealing with running different versions of Java for different apps without making a complete mess of your local setup :).
Here is a slightly more complex example which has Maven and a simple Spring app
Disclaimer:
In addition to @Ceki 's answer, If you are using logback and setup a config file in your project (usually logback.xml), you can define the log to plot the stack trace as well using
<encoder>
<pattern>%date |%-5level| [%thread] [%file:%line] - %msg%n%ex{full}</pattern>
</encoder>
the %ex in pattern is what makes the difference
If you need this solution for only few types of modals just use
style="width:90%"
attribute.
example:
div class="modal-dialog modal-lg" style="width:90%"
note: this will change only this particular modal
To get all objects in a dictionary, you can also use enumerateKeysAndObjectsUsingBlock:
like so:
NSMutableArray *yourArray = [NSMutableArray arrayWithCapacity:6];
[yourDict enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
[yourArray addObject:obj];
}];
Another method is to change the socket so it never generates SIGPIPE on write(). This is more convenient in libraries, where you might not want a global signal handler for SIGPIPE.
On most BSD-based (MacOS, FreeBSD...) systems, (assuming you are using C/C++), you can do this with:
int set = 1;
setsockopt(sd, SOL_SOCKET, SO_NOSIGPIPE, (void *)&set, sizeof(int));
With this in effect, instead of the SIGPIPE signal being generated, EPIPE will be returned.
I wrote a small function that can do it, with the Web Audio API...
var beep = function(duration, type, finishedCallback) {
if (!(window.audioContext || window.webkitAudioContext)) {
throw Error("Your browser does not support Audio Context.");
}
duration = +duration;
// Only 0-4 are valid types.
type = (type % 5) || 0;
if (typeof finishedCallback != "function") {
finishedCallback = function() {};
}
var ctx = new (window.audioContext || window.webkitAudioContext);
var osc = ctx.createOscillator();
osc.type = type;
osc.connect(ctx.destination);
osc.noteOn(0);
setTimeout(function() {
osc.noteOff(0);
finishedCallback();
}, duration);
};
Another more manual option to get it:
.nuget\nuget.exe install Newtonsoft.Json -Version 4.0.5
Please refer to the official documentation:
https://www.chartjs.org/docs/latest/axes/styling.html#grid-line-configuration
Below code changes would hide the gridLines:
gridLines: {
display:false
}
If I understand your question correctly:
for elem in doc.findall('timeSeries/values/value'):
print elem.get('dateTime'), elem.text
or if you prefer (and if there is only one occurrence of timeSeries/values
:
values = doc.find('timeSeries/values')
for value in values:
print value.get('dateTime'), elem.text
The findall()
method returns a list of all matching elements, whereas find()
returns only the first matching element. The first example loops over all the found elements, the second loops over the child elements of the values
element, in this case leading to the same result.
I don't see where the problem with not finding timeSeries
comes from however. Maybe you just forgot the getroot()
call? (note that you don't really need it because you can work from the elementtree itself too, if you change the path expression to for example /timeSeriesResponse/timeSeries/values
or //timeSeries/values
)
The JDK path might change when you update JAVA. For Mac you should go to the following path to check the JAVA version installed.
/Library/Java/JavaVirtualMachines/
Next, say JDK version that you find is jdk1.8.0_151.jdk
, the path to home directory within it is the JDK home path.
In my case it was :
/Library/Java/JavaVirtualMachines/jdk1.8.0_151.jdk/Contents/Home
You can configure it by going to File -> Project Structure -> SDKs
.
lsof -i:3000;
kill -9 $(lsof -t -i:3000);
// 3000 is a your port
// This "lsof -i:3000;" command will show PID
kill PID
ex: kill 129393
Ok, here's a simple example using curb.
require 'yaml'
require 'curb'
# prepare post data
post_data = fields_hash.map { |k, v| Curl::PostField.content(k, v.to_s) }
post_data << Curl::PostField.file('file', '/path/to/file'),
# post
c = Curl::Easy.new('http://localhost:3000/foo')
c.multipart_form_post = true
c.http_post(post_data)
# print response
y [c.response_code, c.body_str]
Use LINQ to do a reverse Dictionary<K, V>
lookup. But keep in mind that the values in your Dictionary<K, V>
values may not be distinct.
Demonstration:
using System;
using System.Collections.Generic;
using System.Linq;
class ReverseDictionaryLookupDemo
{
static void Main()
{
var dict = new Dictionary<int, string>();
dict.Add(4, "Four");
dict.Add(5, "Five");
dict.Add(1, "One");
dict.Add(11, "One"); // duplicate!
dict.Add(3, "Three");
dict.Add(2, "Two");
dict.Add(44, "Four"); // duplicate!
Console.WriteLine("\n== Enumerating Distinct Values ==");
foreach (string value in dict.Values.Distinct())
{
string valueString =
String.Join(", ", GetKeysFromValue(dict, value));
Console.WriteLine("{0} => [{1}]", value, valueString);
}
}
static List<int> GetKeysFromValue(Dictionary<int, string> dict, string value)
{
// Use LINQ to do a reverse dictionary lookup.
// Returns a 'List<T>' to account for the possibility
// of duplicate values.
return
(from item in dict
where item.Value.Equals(value)
select item.Key).ToList();
}
}
Expected Output:
== Enumerating Distinct Values ==
Four => [4, 44]
Five => [5]
One => [1, 11]
Three => [3]
Two => [2]
Angular 2 or 4:
There's no more ng-repeat, it's *ngFor now in recent Angular versions!
<table style="padding: 20px; width: 60%;">
<tr>
<th align="left">id</th>
<th align="left">status</th>
<th align="left">name</th>
</tr>
<tr *ngFor="let item of myJSONArray">
<td>{{item.id}}</td>
<td>{{item.status}}</td>
<td>{{item.name}}</td>
</tr>
</table>
Used this simple JSON:
[{"id":1,"status":"active","name":"A"},
{"id":2,"status":"live","name":"B"},
{"id":3,"status":"active","name":"C"},
{"id":6,"status":"deleted","name":"D"},
{"id":4,"status":"live","name":"E"},
{"id":5,"status":"active","name":"F"}]
You can also do:
Integer a = '1182-2'.split('-')[0] as Integer
Integer b = '1182-2'.split('-')[1] as Integer
//a=1182 b=2
I don't know about others, but I was used to define a "global constant" (DEBUG
) and then a global function (debug(msg)
) that would print msg
only if DEBUG == True
.
Then I write my debug statements like:
debug('My value: %d' % value)
...then I pick up unit testing and never did this again! :)
//Find header from the files lying in the directory
val fileNameHeader = sc.binaryFiles("E:\\sss\\*.txt",1).map{
case (fileName, stream)=>
val header = new BufferedReader(new InputStreamReader(stream.open())).readLine()
(fileName, header)
}.collect().toMap
val fileNameHeaderBr = sc.broadcast(fileNameHeader)
// Now let's skip the header. mapPartition will ensure the header
// can only be the first line of the partition
sc.textFile("E:\\sss\\*.txt",1).mapPartitions(iter =>
if(iter.hasNext){
val firstLine = iter.next()
println(s"Comparing with firstLine $firstLine")
if(firstLine == fileNameHeaderBr.value.head._2)
new WrappedIterator(null, iter)
else
new WrappedIterator(firstLine, iter)
}
else {
iter
}
).collect().foreach(println)
class WrappedIterator(firstLine:String,iter:Iterator[String]) extends Iterator[String]{
var isFirstIteration = true
override def hasNext: Boolean = {
if (isFirstIteration && firstLine != null){
true
}
else{
iter.hasNext
}
}
override def next(): String = {
if (isFirstIteration){
println(s"For the first time $firstLine")
isFirstIteration = false
if (firstLine != null){
firstLine
}
else{
println(s"Every time $firstLine")
iter.next()
}
}
else {
iter.next()
}
}
}
if(!$('element').val()) {
// code
}
You can try with
import { Router, ActivatedRoute} from '@angular/router';
constructor(private router: Router, private activatedRoute:ActivatedRoute) {
console.log(activatedRoute.snapshot.url) // array of states
console.log(activatedRoute.snapshot.url[0].path) }
Alternative ways
router.location.path(); this works only in browser console.
window.location.pathname
which gives the path name.
jQlite (angular's "jQuery" port) doesn't support lookup by classes.
One solution would be to include jQuery in your app.
Another is using QuerySelector
or QuerySelectorAll
:
link: function(scope, element, attrs) {
console.log(element[0].querySelector('.list-scrollable'))
}
We use the first item in the element
array, which is the HTML element. element.eq(0)
would yield the same.
for Swift 3.1 or later
firstly add protocol UITextFieldDelegate
like:-
class PinCodeViewController: UIViewController, UITextFieldDelegate {
.....
.....
.....
}
after that create your UITextField and set delegate
Complete Exp: -
import UIKit
class PinCodeViewController: UIViewController, UITextFieldDelegate {
let pinCodetextField: UITextField = {
let tf = UITextField()
tf.placeholder = "please enter your pincode"
tf.font = UIFont.systemFont(ofSize: 15)
tf.borderStyle = UITextBorderStyle.roundedRect
tf.autocorrectionType = UITextAutocorrectionType.no
tf.keyboardType = UIKeyboardType.numberPad
tf.clearButtonMode = UITextFieldViewMode.whileEditing;
tf.contentVerticalAlignment = UIControlContentVerticalAlignment.center
return tf
}()
override func viewDidLoad() {
super.viewDidLoad()
view.addSubview(pinCodetextField)
//----- setup your textfield anchor or position where you want to show it-----
// after that
pinCodetextField.delegate = self // setting the delegate
}
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
return !(textField.text?.characters.count == 6 && string != "")
} // this is return the maximum characters in textfield
}
you define the struct as xyx but you're trying to create the struct called xyz.
/^$|\s+/
This matches when empty or white spaces
/(?!^$)([^\s])/
This matches when its not empty or white spaces
Per the documentation from GitHub regarding GFM syntax highlighted code blocks
We use Linguist to perform language detection and syntax highlighting. You can find out which keywords are valid in the languages YAML file.
Rendered on GitHub, console
makes the lines after the console blue. bash
, sh
, or shell
don't seem to "highlight" much ...and you can use posh
for PowerShell or CMD.
If you
you can do that starting with git 2.10. 2.10 or later is required, because 2.10 fixed the behavior of text=auto together with eol=lf. Source.
Put a .gitattributes
file in the root of your git repository having following contents:
* text=auto eol=lf
Commit it.
You can also add an .editorconfig
in the root of your repository to ensure that modern tooling creates new files with the desired line endings.
# EditorConfig is awesome: http://EditorConfig.org
# top-most EditorConfig file
root = true
# Unix-style newlines with a newline ending every file
[*]
end_of_line = lf
insert_final_newline = true
Perhaps this what you're looking for - https://www.w3schools.com/css/css3_flexbox.asp
CSS:
#container {
display: flex;
flex-wrap: wrap;
justify-content: center;
}
.block {
width: 150px;
height: 150px;
margin: 10px;
}
HTML:
<div id="container">
<div class="block">1</div>
<div class="block">2</div>
<div class="block">3</div>
</div>
This Should Work Fine
SELECT * FROM product
WHERE pdate BETWEEN datetime('now', '-30 days') AND datetime('now', 'localtime')
You need to pass a function pointer. The syntax is a little cumbersome, but it's really powerful once you get familiar with it.
If you are using Visual Studio 2005 and up, you can create a setter/getter real fast using the insert snippet command.
Right click on your code, click on Insert Snippet (Ctrl+K,X), and then choose "prop" from the list.
Install zip
sudo apt-get install zip
Zip your folder:
zip -r {filename.zip} {foldername}
Windows does not come with a command-line zip program, despite Windows Explorer natively supporting Zip files since the Plus! pack for Windows 98.
I recommend the open-source 7-Zip utility which includes a command-line executable and supports many different archive file types, especially its own *.7z
format which offers superior compression ratios to traditional (PKZIP) *.zip
files:
Download 7-Zip from the 7-Zip home page
Add the path to 7z.exe
to your PATH
environment variable. See this QA:
How to set the path and environment variables in Windows
Open a new command-prompt window and use this command to create a PKZIP *.zip
file:
7z a -tzip {yourfile.zip} {yourfolder}
If you have the Java JDK installed then you can use the jar
utility to create Zip files, as *.jar
files are essentially just renamed *.zip
(PKZIP) files:
jar -cfM {yourfile.zip} {yourfolder}
Explanation: * -c compress * -f specify filename * -M do not include a MANIFEST file
I had the same problem when I wrote two upstreams in NGINX conf
upstream php_upstream {
server unix:/var/run/php/my.site.sock;
server 127.0.0.1:9000;
}
...
fastcgi_pass php_upstream;
but in /etc/php/7.3/fpm/pool.d/www.conf
I listened the socket only
listen = /var/run/php/my.site.sock
So I need just socket, no any 127.0.0.1:9000
, and I just removed IP+port upstream
upstream php_upstream {
server unix:/var/run/php/my.site.sock;
}
This could be rewritten without an upstream
fastcgi_pass unix:/var/run/php/my.site.sock;
Regex-based searching is sometimes faster than generator approach:
RRR = re.compile(r'(.*)\n')
def f4(arg):
return (i.group(1) for i in RRR.finditer(arg))
Data flow diagram shows the flow of data between the different entities and datastores in a system while a flow chart shows the steps involved to carried out a task. In a sense, data flow diagram provides a very high level view of the system, while a flow chart is a lower level view (basically showing the algorithm).
Whether you use data flow diagram or flow charts depends on figuring out what is it that you are trying to show.
According to official documentation, you can set or remove the "executable" flag on any tracked file using update-index
sub-command.
To set the flag, use following command:
git update-index --chmod=+x path/to/file
To remove it, use:
git update-index --chmod=-x path/to/file
Under the hood
While this looks like the regular unix files permission system, actually it is not. Git maintains a special "mode" for each file in its internal storage:
100644
for regular files100755
for executable onesYou can visualize it using ls-file
subcommand, with --stage
option:
$ git ls-files --stage
100644 aee89ef43dc3b0ec6a7c6228f742377692b50484 0 .gitignore
100755 0ac339497485f7cc80d988561807906b2fd56172 0 my_executable_script.sh
By default, when you add a file to a repository, Git will try to honor its filesystem attributes and set the correct filemode accordingly. You can disable this by setting core.fileMode
option to false:
git config core.fileMode false
Troubleshooting
If at some point the Git filemode is not set but the file has correct filesystem flag, try to remove mode and set it again:
git update-index --chmod=-x path/to/file
git update-index --chmod=+x path/to/file
Bonus
Starting with Git 2.9, you can stage a file AND set the flag in one command:
git add --chmod=+x path/to/file
asp:TextBox ID="txtName" placeholder="any text here"
You need to call tf.global_variables_initializer()
on you session, like
init = tf.global_variables_initializer()
sess.run(init)
Full example is available in this great tutorial https://www.tensorflow.org/get_started/mnist/mechanics
The important difference is that when passing by const
reference, no new object is created. In the function body, the parameter is effectively an alias for the object passed in.
Because the reference is a const
reference the function body cannot directly change the value of that object. This has a similar property to passing by value where the function body also cannot change the value of the object that was passed in, in this case because the parameter is a copy.
There are crucial differences. If the parameter is a const
reference, but the object passed it was not in fact const
then the value of the object may be changed during the function call itself.
E.g.
int a;
void DoWork(const int &n)
{
a = n * 2; // If n was a reference to a, n will have been doubled
f(); // Might change the value of whatever n refers to
}
int main()
{
DoWork(a);
}
Also if the object passed in was not actually const
then the function could (even if it is ill advised) change its value with a cast.
e.g.
void DoWork(const int &n)
{
const_cast<int&>(n) = 22;
}
This would cause undefined behaviour if the object passed in was actually const
.
When the parameter is passed by const reference, extra costs include dereferencing, worse object locality, fewer opportunities for compile optimizing.
When the parameter is passed by value and extra cost is the need to create a parameter copy. Typically this is only of concern when the object type is large.
I think that the the align="center"
aligns the content, so if you wanted to use that method, you would need to use it in a 'wraper' div - a div that just wraps the rest.
text-align
is doing a similar sort of thing.
left:50%
is ignored unless you set the div's position to be something like relative or absolute.
The generally accepted methods is to use the following properties
width:500px; // this can be what ever unit you want, you just have to define it
margin-left:auto;
margin-right:auto;
the margins being auto means they grow/shrink to match the browser window (or parent div)
UPDATE
Thanks to Meo for poiting this out, if you wanted to you could save time and use the short hand propery for the margin.
margin:0 auto;
this defines the top and bottom as 0 (as it is zero it does not matter about lack of units) and the left and right get defined as 'auto' You can then, if you wan't override say the top margin as you would with any other CSS rules.
From my comparisons, I find that they have the exact same execution plan. There're three scenarios:
If and when they return the same results, they have the same speed. However, we must keep in mind that they are not the same queries, and that LEFT JOIN will possibly return more results (when some ON conditions aren't met) --- this is why it's usually slower.
When the main table (first non-const one in the execution plan) has a restrictive condition (WHERE id = ?) and the corresponding ON condition is on a NULL value, the "right" table is not joined --- this is when LEFT JOIN is faster.
As discussed in Point 1, usually INNER JOIN is more restrictive and returns fewer results and is therefore faster.
Both use (the same) indices.
I have not tried this, so I am not guarantueeing anything, however
foreach Bar f in filterBars
{
search(f)
}
Foo search(Bar b)
{
fooSelect = (from f in fooBunch
where !(from b in f.BarList select b.BarId).Contains(b.ID)
select f).ToList();
return fooSelect;
}
From 5.2.2/2 (character display semantics) :
\b
(backspace) Moves the active position to the previous position on the current line. If the active position is at the initial position of a line, the behavior of the display device is unspecified.
\n
(new line) Moves the active position to the initial position of the next line.
\r
(carriage return) Moves the active position to the initial position of the current line.
Here, your code produces :
<new_line>ab
\b
: back one charactersi
: overrides the b
with s
(producing asi
on the second line)\r
: back at the beginning of the current lineha
: overrides the first two characters (producing hai
on the second line)In the end, the output is :
\nhai
yield
When you see a function with yield
statements, apply this easy trick to understand what will happen:
result = []
at the start of the function.yield expr
with result.append(expr)
.return result
at the bottom of the function.yield
statements! Read and figure out code.This trick may give you an idea of the logic behind the function, but what actually happens with yield
is significantly different than what happens in the list based approach. In many cases, the yield approach will be a lot more memory efficient and faster too. In other cases, this trick will get you stuck in an infinite loop, even though the original function works just fine. Read on to learn more...
First, the iterator protocol - when you write
for x in mylist:
...loop body...
Python performs the following two steps:
Gets an iterator for mylist
:
Call iter(mylist)
-> this returns an object with a next()
method (or __next__()
in Python 3).
[This is the step most people forget to tell you about]
Uses the iterator to loop over items:
Keep calling the next()
method on the iterator returned from step 1. The return value from next()
is assigned to x
and the loop body is executed. If an exception StopIteration
is raised from within next()
, it means there are no more values in the iterator and the loop is exited.
The truth is Python performs the above two steps anytime it wants to loop over the contents of an object - so it could be a for loop, but it could also be code like otherlist.extend(mylist)
(where otherlist
is a Python list).
Here mylist
is an iterable because it implements the iterator protocol. In a user-defined class, you can implement the __iter__()
method to make instances of your class iterable. This method should return an iterator. An iterator is an object with a next()
method. It is possible to implement both __iter__()
and next()
on the same class, and have __iter__()
return self
. This will work for simple cases, but not when you want two iterators looping over the same object at the same time.
So that's the iterator protocol, many objects implement this protocol:
__iter__()
.Note that a for
loop doesn't know what kind of object it's dealing with - it just follows the iterator protocol, and is happy to get item after item as it calls next()
. Built-in lists return their items one by one, dictionaries return the keys one by one, files return the lines one by one, etc. And generators return... well that's where yield
comes in:
def f123():
yield 1
yield 2
yield 3
for item in f123():
print item
Instead of yield
statements, if you had three return
statements in f123()
only the first would get executed, and the function would exit. But f123()
is no ordinary function. When f123()
is called, it does not return any of the values in the yield statements! It returns a generator object. Also, the function does not really exit - it goes into a suspended state. When the for
loop tries to loop over the generator object, the function resumes from its suspended state at the very next line after the yield
it previously returned from, executes the next line of code, in this case, a yield
statement, and returns that as the next item. This happens until the function exits, at which point the generator raises StopIteration
, and the loop exits.
So the generator object is sort of like an adapter - at one end it exhibits the iterator protocol, by exposing __iter__()
and next()
methods to keep the for
loop happy. At the other end, however, it runs the function just enough to get the next value out of it, and puts it back in suspended mode.
Usually, you can write code that doesn't use generators but implements the same logic. One option is to use the temporary list 'trick' I mentioned before. That will not work in all cases, for e.g. if you have infinite loops, or it may make inefficient use of memory when you have a really long list. The other approach is to implement a new iterable class SomethingIter that keeps the state in instance members and performs the next logical step in it's next()
(or __next__()
in Python 3) method. Depending on the logic, the code inside the next()
method may end up looking very complex and be prone to bugs. Here generators provide a clean and easy solution.
One problem with StringWriter
is that by default it doesn't let you set the encoding which it advertises - so you can end up with an XML document advertising its encoding as UTF-16, which means you need to encode it as UTF-16 if you write it to a file. I have a small class to help with that though:
public sealed class StringWriterWithEncoding : StringWriter
{
public override Encoding Encoding { get; }
public StringWriterWithEncoding (Encoding encoding)
{
Encoding = encoding;
}
}
Or if you only need UTF-8 (which is all I often need):
public sealed class Utf8StringWriter : StringWriter
{
public override Encoding Encoding => Encoding.UTF8;
}
As for why you couldn't save your XML to the database - you'll have to give us more details about what happened when you tried, if you want us to be able to diagnose/fix it.
Updated 2020
Here's an updated answer for the latest Bootstrap 4.0.0. This version has classes that will help you create a sticky or fixed sidebar without the extra CSS....
Use sticky-top
:
<div class="container">
<div class="row py-3">
<div class="col-3 order-2" id="sticky-sidebar">
<div class="sticky-top">
...
</div>
</div>
<div class="col" id="main">
<h1>Main Area</h1>
...
</div>
</div>
</div>
Demo: https://codeply.com/go/O9GMYBer4l
or, use position-fixed
:
<div class="container-fluid">
<div class="row">
<div class="col-3 px-1 bg-dark position-fixed" id="sticky-sidebar">
...
</div>
<div class="col offset-3" id="main">
<h1>Main Area</h1>
...
</div>
</div>
</div>
Demo: https://codeply.com/p/0Co95QlZsH
Also see:
Fixed and scrollable column in Bootstrap 4 flexbox
Bootstrap col fixed position
How to use CSS position sticky to keep a sidebar visible with Bootstrap 4
Create a responsive navbar sidebar "drawer" in Bootstrap 4?
If you're in a method bound to an event, simply return false:
@Component({
(...)
template: `
<a href="/test.html" (click)="doSomething()">Test</a>
`
})
export class MyComp {
doSomething() {
(...)
return false;
}
}
Objective C Solution
NSArray * array = @[@"1", @"2", @"3"];
NSString * stringFromArray = [[array valueForKey:@"description"] componentsJoinedByString:@"-"]; // "1-2-3"
Those who are looking for a solution in Swift
If the array contains strings, you can use the String's join method:
var array = ["1", "2", "3"]
let stringFromArray = "-".join(array) // "1-2-3"
In Swift 2:
var array = ["1", "2", "3"]
let stringFromArray = array.joinWithSeparator("-") // "1-2-3"
In Swift 3 & 4
var array = ["1", "2", "3"]
let stringFromArray = array.joined(separator: "-") // "1-2-3"
My preferred way is a bit long, but has some advantages over the other answers:
Here it is:
Function combineArrays(ByVal toCombine As Variant, Optional ByVal newBase As Long = 1)
'Combines an array of one or more 1d arrays, objects, or values into a single 1d array
'newBase parameter indicates start position of new array (0, 1, etc.)
'Example usage:
'combineArrays(Array(Array(1,2,3),Array(4,5,6),Array(7,8))) -> Array(1,2,3,4,5,6,7,8)
'combineArrays(Array("Cat",Array(2,3,4))) -> Array("Cat",2,3,4)
'combineArrays(Array("Cat",ActiveSheet)) -> Array("Cat",ActiveSheet)
'combineArrays(Array(ThisWorkbook)) -> Array(ThisWorkbook)
'combineArrays("Cat") -> Array("Cat")
Dim tempObj As Object
Dim tempVal As Variant
If Not IsArray(toCombine) Then
If IsObject(toCombine) Then
Set tempObj = toCombine
ReDim toCombine(newBase To newBase)
Set toCombine(newBase) = tempObj
Else
tempVal = toCombine
ReDim toCombine(newBase To newBase)
toCombine(newBase) = tempVal
End If
combineArrays = toCombine
Exit Function
End If
Dim i As Long
Dim tempArr As Variant
Dim newMax As Long
newMax = 0
For i = LBound(toCombine) To UBound(toCombine)
If Not IsArray(toCombine(i)) Then
If IsObject(toCombine(i)) Then
Set tempObj = toCombine(i)
ReDim tempArr(1 To 1)
Set tempArr(1) = tempObj
toCombine(i) = tempArr
Else
tempVal = toCombine(i)
ReDim tempArr(1 To 1)
tempArr(1) = tempVal
toCombine(i) = tempArr
End If
newMax = newMax + 1
Else
newMax = newMax + (UBound(toCombine(i)) + LBound(toCombine(i)) - 1)
End If
Next
newMax = newMax + (newBase - 1)
ReDim newArr(newBase To newMax)
i = newBase
Dim j As Long
Dim k As Long
For j = LBound(toCombine) To UBound(toCombine)
For k = LBound(toCombine(j)) To UBound(toCombine(j))
If IsObject(toCombine(j)(k)) Then
Set newArr(i) = toCombine(j)(k)
Else
newArr(i) = toCombine(j)(k)
End If
i = i + 1
Next
Next
combineArrays = newArr
End Function
Hi here is an Google Chrome Sample which emails the current Site to an friend. The Basic idea behind is what you want...first of all it fetches the content of the page (not interessting for you)...afterwards it gets the URL (<-- good part)
Additionally it is a nice working code example, which i prefer motstly over reading Documents.
Can be found here: Email this page
For GET parameters, you can grab them from document.location.search
:
var $_GET = {};
document.location.search.replace(/\??(?:([^=]+)=([^&]*)&?)/g, function () {
function decode(s) {
return decodeURIComponent(s.split("+").join(" "));
}
$_GET[decode(arguments[1])] = decode(arguments[2]);
});
document.write($_GET["test"]);
For POST parameters, you can serialize the $_POST
object in JSON format into a <script>
tag:
<script type="text/javascript">
var $_POST = <?php echo json_encode($_POST); ?>;
document.write($_POST["test"]);
</script>
While you're at it (doing things on server side), you might collect the GET parameters on PHP as well:
var $_GET = <?php echo json_encode($_GET); ?>;
Note: You'll need PHP version 5 or higher to use the built-in json_encode
function.
Update: Here's a more generic implementation:
function getQueryParams(qs) {
qs = qs.split("+").join(" ");
var params = {},
tokens,
re = /[?&]?([^=]+)=([^&]*)/g;
while (tokens = re.exec(qs)) {
params[decodeURIComponent(tokens[1])]
= decodeURIComponent(tokens[2]);
}
return params;
}
var $_GET = getQueryParams(document.location.search);
Yes!
Here you have another example:
UPDATE prices
SET final_price= CASE
WHEN currency=1 THEN 0.81*final_price
ELSE final_price
END
This works because MySQL doesn't update the row, if there is no change, as mentioned in docs:
If you set a column to the value it currently has, MySQL notices this and does not update it.
@echo off
setlocal enableextensions disabledelayedexpansion
set "search=%1"
set "replace=%2"
set "textFile=Input.txt"
for /f "delims=" %%i in ('type "%textFile%" ^& break ^> "%textFile%" ') do (
set "line=%%i"
setlocal enabledelayedexpansion
>>"%textFile%" echo(!line:%search%=%replace%!
endlocal
)
for /f
will read all the data (generated by the type
comamnd) before starting to process it. In the subprocess started to execute the type
, we include a redirection overwritting the file (so it is emptied). Once the do
clause starts to execute (the content of the file is in memory to be processed) the output is appended to the file.
Ok, so, I found this answer very helpful and thanks to all the people who contributed. Just to add something, though. The accepted answer is indeed the correct answer...BUT...in my case, I was looking to implement the error message below the EditText
widget with app:errorEnabled="true"
and this single line made my life difficult. it seems that this overrides the theme I chose for android.support.design.widget.TextInputLayout
, which has a different text color defined by android:textColorPrimary
.
In the end I took to applying a text color directly to the EditText
widget. My code looks something like this:
styles.xml
<item name="colorPrimary">@color/my_yellow</item>
<item name="colorPrimaryDark">@color/my_yellow_dark</item>
<item name="colorAccent">@color/my_yellow_dark</item>
<item name="android:textColorPrimary">@android:color/white</item>
<item name="android:textColorSecondary">@color/dark_gray</item>
<item name="android:windowBackground">@color/light_gray</item>
<item name="windowNoTitle">true</item>
<item name="windowActionBar">false</item>
<item name="android:textColorHint">@color/dark_gray</item>
<item name="android:colorControlNormal">@android:color/black</item>
<item name="android:colorControlActivated">@android:color/white</item>
And my widget:
<android.support.design.widget.TextInputLayout
android:id="@+id/log_in_layout_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:errorEnabled="true">
<EditText
android:id="@+id/log_in_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:textColor="@android:color/black"
android:ems="10"
android:hint="@string/log_in_name"
android:inputType="textPersonName" />
</android.support.design.widget.TextInputLayout>
Now it displays black text color instead of the textColorPrimary
white.
Assume a network environment where a "user" (aka you) has to logon. Usually this is a User ID (UID) and a Password (PW). OK then, what is your Identity, or who are you? You are the UID, and this gleans that "name" from your logon session. Simple! It should also work in an internet application that needs you to login, like Best Buy and others.
This will pull my UID, or "Name", from my session when I open the default page of the web application I need to use. Now, in my instance, I am part of a Domain, so I can use initial Windows authentication, and it needs to verify who I am, thus the 2nd part of the code. As for Forms Authentication, it would rely on the ticket (aka cookie most likely) sent to your workstation/computer. And the code would look like:
string id = HttpContext.Current.User.Identity.Name;
// Strip the domain off of the result
id = id.Substring(id.LastIndexOf(@"\", StringComparison.InvariantCulture) + 1);
Now it has my business name (aka UID) and can display it on the screen.
Latest published version of the Support Library is 24.1.1, So you can use it like this,
compile 'com.android.support:appcompat-v7:24.1.1'
compile 'com.android.support:design:24.1.1'
Same as for other support components.
You can see the revisions here,
https://developer.android.com/topic/libraries/support-library/revisions.html
In your gemfile add:
gem 'execjs'
gem 'therubyracer', :platforms => :ruby
For more details: ExecJS and could not find a JavaScript runtime
buf.delete(0, buf.length());
This will work in Python 3
import urllib.request
user_agent = 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.7) Gecko/2009021910 Firefox/3.0.7'
url = "http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers"
headers={'User-Agent':user_agent,}
request=urllib.request.Request(url,None,headers) #The assembled request
response = urllib.request.urlopen(request)
data = response.read() # The data u need
Cast the null literal: (DateTime?)null
or (Nullable<DateTime>)null
.
You can also use default(DateTime?)
or default(Nullable<DateTime>)
And, as other answers have noted, you can also apply the cast to the DateTime value rather than to the null literal.
EDIT (adapted from my comment to Prutswonder's answer):
The point is that the conditional operator does not consider the type of its assignment target, so it will only compile if there is an implicit conversion from the type of its second operand to the type of its third operand, or from the type of its third operand to the type of its second operand.
For example, this won't compile:
bool b = GetSomeBooleanValue();
object o = b ? "Forty-two" : 42;
Casting either the second or third operand to object
, however, fixes the problem, because there is an implicit conversion from int to object and also from string to object:
object o = b ? "Forty-two" : (object)42;
or
object o = b ? (object)"Forty-two" : 42;
The SQL Server Maximums are disclosed http://msdn.microsoft.com/en-us/library/ms143432.aspx (this is the 2008 version)
A SQL Query can be a varchar(max) but is shown as limited to 65,536 * Network Packet size, but even then what is most likely to trip you up is the 2100 parameters per query. If SQL chooses to parameterize the literal values in the in clause, I would think you would hit that limit first, but I havn't tested it.
Edit : Test it, even under forced parameteriztion it survived - I knocked up a quick test and had it executing with 30k items within the In clause. (SQL Server 2005)
At 100k items, it took some time then dropped with:
Msg 8623, Level 16, State 1, Line 1 The query processor ran out of internal resources and could not produce a query plan. This is a rare event and only expected for extremely complex queries or queries that reference a very large number of tables or partitions. Please simplify the query. If you believe you have received this message in error, contact Customer Support Services for more information.
So 30k is possible, but just because you can do it - does not mean you should :)
Edit : Continued due to additional question.
50k worked, but 60k dropped out, so somewhere in there on my test rig btw.
In terms of how to do that join of the values without using a large in clause, personally I would create a temp table, insert the values into that temp table, index it and then use it in a join, giving it the best opportunities to optimse the joins. (Generating the index on the temp table will create stats for it, which will help the optimiser as a general rule, although 1000 GUIDs will not exactly find stats too useful.)
For older version of IE (before IE8), it is not straight forward to see the console log in IE Developer Toolbar, after spending hours research and trying many different solutions, finally, the following toolbar is great tool for me:
The main advantage of this is providing a console for IE6 or IE7, so you can see what are the error (in the console log)
The following articles will be useful
http://dev.mysql.com/doc/refman/5.0/en/charset-syntax.html
http://dev.mysql.com/doc/refman/5.0/en/charset-connection.html
After you connect to the database issue the following command:
SET NAMES 'utf8';
Ensure that your web page also uses the UTF-8 encoding:
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
PHP also offers several function that will be useful for conversions:
The syntax is changed in new 3.x releases rather than old 2.x releases: for example in python 2.x you can write: print "Hi new world" but in the new 3.x release you need to use the new syntax and write it like this: print("Hi new world")
check the documentation: http://docs.python.org/3.3/library/functions.html?highlight=print#print
Using password_hash
is the recommended way to store passwords. Don't separate them to DB and files.
Let's say we have the following input:
$password = $_POST['password'];
You first hash the password by doing this:
$hashed_password = password_hash($password, PASSWORD_DEFAULT);
Then see the output:
var_dump($hashed_password);
As you can see it's hashed. (I assume you did those steps).
Now you store this hashed password in your database, ensuring your password column is large enough to hold the hashed value (at least 60 characters or longer). When a user asks to log them in, you check the password input with this hash value in the database, by doing this:
// Query the database for username and password
// ...
if(password_verify($password, $hashed_password)) {
// If the password inputs matched the hashed password in the database
// Do something, you know... log them in.
}
// Else, Redirect them back to the login page.
Have you tried rake reklamer:iqmedier
?
My custom rake tasks are in the lib directory, not in lib/tasks. Not sure if that matters.
I suggest using Flexbox:
Be sure to add the proper vendor prefixes though!
form {_x000D_
width: 400px;_x000D_
border: 1px solid black;_x000D_
display: flex;_x000D_
}_x000D_
_x000D_
input {_x000D_
flex: 2;_x000D_
}_x000D_
_x000D_
input, label {_x000D_
margin: 5px;_x000D_
}
_x000D_
<form method="post">_x000D_
<label for="myInput">Sample label</label>_x000D_
<input type="text" id="myInput" placeholder="Sample Input"/>_x000D_
</form>
_x000D_
Yea, Indeed @Evert answer is perfectly correct. In addition I'll like to add one more reason that could encounter such error.
>>> np.array([np.zeros((20,200)),np.zeros((20,200)),np.zeros((20,200))])
This will be perfectly fine, However, This leads to error:
>>> np.array([np.zeros((20,200)),np.zeros((20,200)),np.zeros((20,201))])
ValueError: could not broadcast input array from shape (20,200) into shape (20)
The numpy arry within the list, must also be the same size.
command install:
conda install python=3.5
conda install python=3.6
download the most recent Anaconda installer:
Anaconda 4.2.0
Anaconda 5.2.0
reference from anaconda doc:
A simple way to do this is to loop over all columns, measure their width, create a row_template for that max width, and then print the rows. It's not exactly what you are looking for, because in this case, you first have to put your headings inside the table, but I'm thinking it might be useful to someone else.
table = [
["", "Man Utd", "Man City", "T Hotspur"],
["Man Utd", 1, 0, 0],
["Man City", 1, 1, 0],
["T Hotspur", 0, 1, 2],
]
def print_table(table):
longest_cols = [
(max([len(str(row[i])) for row in table]) + 3)
for i in range(len(table[0]))
]
row_format = "".join(["{:>" + str(longest_col) + "}" for longest_col in longest_cols])
for row in table:
print(row_format.format(*row))
You use it like this:
>>> print_table(table)
Man Utd Man City T Hotspur
Man Utd 1 0 0
Man City 1 1 0
T Hotspur 0 1 2
Use the properties-maven-plugin to write specific pom properties
to a file at compile time, and then read that file at run time.
In your pom.xml:
<properties>
<name>${project.name}</name>
<version>${project.version}</version>
<foo>bar</foo>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>properties-maven-plugin</artifactId>
<version>1.0.0</version>
<executions>
<execution>
<phase>generate-resources</phase>
<goals>
<goal>write-project-properties</goal>
</goals>
<configuration>
<outputFile>${project.build.outputDirectory}/my.properties</outputFile>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
And then in .java:
java.io.InputStream is = this.getClass().getResourceAsStream("my.properties");
java.util.Properties p = new Properties();
p.load(is);
String name = p.getProperty("name");
String version = p.getProperty("version");
String foo = p.getProperty("foo");
FYI, when you using or importing TensorFlow, a similar error may occur, like (caused by NumPy):
RuntimeError: module compiled against API version 0xa but this version of numpy is 0x9
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python2.7/dist-packages/tensorflow/__init__.py", line 23, in <module>
from tensorflow.python import *
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/__init__.py", line 60, in <module>
raise ImportError(msg)
ImportError: Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/__init__.py", line 49, in <module>
from tensorflow.python import pywrap_tensorflow
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/pywrap_tensorflow.py", line 28, in <module>
_pywrap_tensorflow = swig_import_helper()
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/pywrap_tensorflow.py", line 24, in swig_import_helper
_mod = imp.load_module('_pywrap_tensorflow', fp, pathname, description)
ImportError: numpy.core.multiarray failed to import
Error importing tensorflow. Unless you are using bazel,
you should not try to import tensorflow from its source directory;
please exit the tensorflow source tree, and relaunch your python interpreter
from there.
I followed Elmira's and Drew's solution, sudo easy_install numpy
, and it worked!
sudo easy_install numpy
Searching for numpy
Best match: numpy 1.11.3
Removing numpy 1.8.2 from easy-install.pth file
Adding numpy 1.11.3 to easy-install.pth file
Using /usr/local/lib/python2.7/dist-packages
Processing dependencies for numpy
Finished processing dependencies for numpy
After that I could use TensorFlow without error.
It's plain and simple.
span
does not affect the layout because it's inline(in line
(one should not confuse because things could be wrapped))div
affects the layout, the content inside appears in the new line(block element
), when the element you wanna add has no special semantic meaning and you want it to appear in new line use <div>
.use .filter(':has(:checkbox:checked)'
ie:
$('#mytable tr').filter(':has(:checkbox:checked)').each(function() {
$('#out').append(this.id);
});
in the line String str2[]=name.split(""); give an extra character in Array...
Let me explain by example
"Aditya".split("") would return [, A, d,i,t,y,a] You will have a extra character in your Array...
The "Aditya".split("") does not work as expected by saroj routray you will get an extra character in String => [, A, d,i,t,y,a].
I have modified it,see below code it work as expected
public static boolean isValidName(String inputString) {
String specialCharacters = " !#$%&'()*+,-./:;<=>?@[]^_`{|}~0123456789";
String[] strlCharactersArray = new String[inputString.length()];
for (int i = 0; i < inputString.length(); i++) {
strlCharactersArray[i] = Character
.toString(inputString.charAt(i));
}
//now strlCharactersArray[i]=[A, d, i, t, y, a]
int count = 0;
for (int i = 0; i < strlCharactersArray.length; i++) {
if (specialCharacters.contains( strlCharactersArray[i])) {
count++;
}
}
if (inputString != null && count == 0) {
return true;
} else {
return false;
}
}
First, let's see what each function does:
regexObject.test( String )
Executes the search for a match between a regular expression and a specified string. Returns true or false.
string.match( RegExp )
Used to retrieve the matches when matching a string against a regular expression. Returns an array with the matches or
null
if there are none.
Since null
evaluates to false
,
if ( string.match(regex) ) {
// There was a match.
} else {
// No match.
}
Is there any difference regarding performance?
Yes. I found this short note in the MDN site:
If you need to know if a string matches a regular expression regexp, use regexp.test(string).
Is the difference significant?
The answer once more is YES! This jsPerf I put together shows the difference is ~30% - ~60% depending on the browser:
Use .test
if you want a faster boolean check. Use .match
to retrieve all matches when using the g
global flag.
Once you have IIS Express installed (the easiest way is through Microsoft Web Platform Installer), you will find the executable file in %PROGRAMFILES%\IIS Express
(%PROGRAMFILES(x86)%\IIS Express
on x64 architectures) and its called iisexpress.exe
.
To see all the possible command-line options, just run:
iisexpress /?
and the program detailed help will show up.
If executed without parameters, all the sites defined in the configuration file and marked to run at startup will be launched. An icon in the system tray will show which sites are running.
There are a couple of useful options once you have some sites created in the configuration file (found in %USERPROFILE%\Documents\IISExpress\config\applicationhost.config
): the /site
and /siteId
.
With the first one, you can launch a specific site by name:
iisexpress /site:SiteName
And with the latter, you can launch by specifying the ID:
iisexpress /siteId:SiteId
With this, if IISExpress is launched from the command-line, a list of all the requests made to the server will be shown, which can be quite useful when debugging.
Finally, a site can be launched by specifying the full directory path. IIS Express will create a virtual configuration file and launch the site (remember to quote the path if it contains spaces):
iisexpress /path:FullSitePath
This covers the basic IISExpress usage from the command line.
Easiest way to see if the file is being cached is to append a query string to the <link />
element so that the browser will re-load it.
To do this you can change your stylesheet reference to something like
<link rel="stylesheet" type="text/css" href="/css/stylesheet.css?v=1" />
Note the v=1
part. You can update this each time you make a new version to see if it is indeed being cached.
Regex can also be good and be used effectively (Replaces all UTF-8 characters not covered in ISO-8859-1
with space):
String input = "€Tes¶ti©ng [§] al€l o€f i¶t _ - À ÆÑ with some 9umbers as"
+ " w2921**#$%!@# well Ü, or ü, is a chaŒracte?";
String output = input.replaceAll("[^\\u0020-\\u007e\\u00a0-\\u00ff]", " ");
System.out.println("Input = " + input);
System.out.println("Output = " + output);
There is css:
table { border-spacing: 40px 10px; }
for 40px wide and 10px high
You need something like this: https://github.com/axkibe/lsyncd It is a tool which combines rsync and inotify - the former is a tool that mirrors, with the correct options set, a directory to the last bit. The latter tells the kernel to notify a program of changes to a directory ot file. It says:
It aggregates and combines events for a few seconds and then spawns one (or more) process(es) to synchronize the changes.
But - according to Digital Ocean at https://www.digitalocean.com/community/tutorials/how-to-mirror-local-and-remote-directories-on-a-vps-with-lsyncd - it ought to be in the Ubuntu repository!
I have similar requirements, and this tool, which I have yet to try, seems suitable for the task.
Making it more visible might help. One example:
Table 1:
ID_STUDENT STUDENT_NAME
1 Raony
2 Diogo
3 Eduardo
4 Luiz
Table 2:
ID_STUDENT LOCKER
3 l1
4 l2
5 l3
What I get when I do:
-Inner join of Table 1 and Table 2:
- Inner join returns both tables merged only when the key
(ID_STUDENT) exists in both tables
ID_STUDENT STUDENT_NAME LOCKER
3 Eduardo l1
4 Luiz l2
-Left join of Table 1 and Table 2:
- Left join merges both tables with all records form table 1, in
other words, there might be non-populated fields from table 2
ID_ESTUDANTE NOME_ESTUDANTE LOCKER
1 Raony -
2 Diogo -
3 Eduardo l1
4 Luiz l2
-Right join of table 1 and table 2:
- Right join merges both tables with all records from table 2, in
other words, there might be non-populated fields from table 1
ID_STUDENT STUDENT_NAME LOCKER
3 Eduardo l1
4 Luiz l2
5 - l3
-Outter join of table 1 and table 2:
- Returns all records from both tables, in other words, there
might be non-populated fields either from table 1 or 2.
ID_STUDENT STUDENT_NAME LOCKER
1 Raony -
2 Diogo -
3 Eduardo l1
4 Luiz l2
5 - l3
Very annoying, no cookie file exmpale on the official website https://ec.haxx.se/http/http-cookies.
Finnaly, I find it does not work, if your file content is just copyied like this
foo1=bar;foo2=bar2
I gusess the format must looks the style said by @Agustí Sánchez . You can test it by -c to create a cookie file on a website.
So try this way, it works
curl -H "Cookie:`cat ./my.cookie`" http://xxxx.com
You can just copy the cookie from chrome console network tab.
If you want to sort data either in Ascending or Descending order based on particular column, using sequlize js
, use the order
method of sequlize
as follows
// Will order the specified column by descending order
order: sequelize.literal('column_name order')
e.g. order: sequelize.literal('timestamp DESC')
To remove all doted outline, including those in bootstrap
themes.
a, a:active, a:focus,
button, button:focus, button:active,
.btn, .btn:focus, .btn:active:focus, .btn.active:focus, .btn.focus, .btn.focus:active, .btn.active.focus {
outline: none;
outline: 0;
}
input::-moz-focus-inner {
border: 0;
}
Note: You should add link href for bootstrap css before the main css, so bootstrap doesn't override your style.
There's always the chr() function, which converts an ascii code to string.
ie. something like: INSERT INTO table VALUES ( CONCAT( 'J', CHR(38), 'J' ) )
Sweet Jesus. I tried all of the above things (but found my settings identical). YET ANOTHER SOLUTION if you are having issues:
http://support.microsoft.com/kb/980368
Try installing this KB for your system. If you are seeing 404s it might be because you don't have this update -- and the isapi module just isn't getting found and there's not a lot you can do about that without this!
Based on Anuga answer I have extended it to multiple images.
Keep track of the rotation angle of the image as an attribute of the image.
function rotate(image) {_x000D_
let rotateAngle = Number(image.getAttribute("rotangle")) + 90;_x000D_
image.setAttribute("style", "transform: rotate(" + rotateAngle + "deg)");_x000D_
image.setAttribute("rotangle", "" + rotateAngle);_x000D_
}
_x000D_
.rotater {_x000D_
transition: all 0.3s ease;_x000D_
border: 0.0625em solid black;_x000D_
border-radius: 3.75em;_x000D_
}
_x000D_
<img class="rotater" onclick="rotate(this)" src="https://upload.wikimedia.org/wikipedia/en/e/e0/Iron_Man_bleeding_edge.jpg"/>_x000D_
<img class="rotater" onclick="rotate(this)" src="https://upload.wikimedia.org/wikipedia/en/e/e0/Iron_Man_bleeding_edge.jpg"/>_x000D_
<img class="rotater" onclick="rotate(this)" src="https://upload.wikimedia.org/wikipedia/en/e/e0/Iron_Man_bleeding_edge.jpg"/>
_x000D_
Edit
Removed the modulo, looks strange.
use background size: cover property . it will be full screen .
body{
background-size: cover;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
}
You Could just use NSTimer to call a selector:
[NSTimer timerWithTimeInterval:1.0 target:self selector:@selector(yourMethod:) userInfo:nil repeats:NO]
You urls are not in the same repository, so you can't do it with the svn diff
command.
svn: 'http://svn.boost.org/svn/boost/sandbox/boost/extension' isn't in the same repository as 'http://cloudobserver.googlecode.com/svn'
Another way you could do it, is export each repos using svn export
, and then use the diff command to compare the 2 directories you exported.
// Export repositories
svn export http://svn.boost.org/svn/boost/sandbox/boost/extension/ repos1
svn export http://cloudobserver.googlecode.com/svn/branches/v0.4/Boost.Extension.Tutorial/libs/boost/extension/ repos2
// Compare exported directories
diff repos1 repos2 > file.diff
New, detailed answer and explanation to an old, frequently asked question...
Short answer: If you don't add elementFormDefault="qualified"
to xsd:schema
, then the default unqualified
value means that locally declared elements are in no namespace.
There's a lot of confusion regarding what elementFormDefault
does, but this can be quickly clarified with a short example...
<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema"
xmlns:target="http://www.levijackson.net/web340/ns"
targetNamespace="http://www.levijackson.net/web340/ns">
<element name="assignments">
<complexType>
<sequence>
<element name="assignment" type="target:assignmentInfo"
minOccurs="1" maxOccurs="unbounded"/>
</sequence>
</complexType>
</element>
<complexType name="assignmentInfo">
<sequence>
<element name="name" type="string"/>
</sequence>
<attribute name="id" type="string" use="required"/>
</complexType>
</schema>
Key points:
assignment
element is locally defined.elementFormDefault
is unqualified
.elementFormDefault="qualified"
so that assignment
is in the target namespace as one would
expect.form
attribute on xs:element
declarations for which elementFormDefault
establishes default values.This XML looks like it should be valid according to the above XSD:
<assignments xmlns="http://www.levijackson.net/web340/ns"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.levijackson.net/web340/ns try.xsd">
<assignment id="a1">
<name>John</name>
</assignment>
</assignments>
Notice:
assignments
places assignments
and all of its descendents in the default namespace (http://www.levijackson.net/web340/ns
).Despite looking valid, the above XML yields the following confusing validation error:
[Error] try.xml:4:23: cvc-complex-type.2.4.a: Invalid content was found starting with element 'assignment'. One of '{assignment}' is expected.
Notes:
assignment
element but it actually found an assignment
element. (WTF){
and }
around assignment
means that validation was expecting assignment
in no namespace here. Unfortunately, when it says that it found an assignment
element, it doesn't mention that it found it in a default namespace which differs from no namespace.elementFormDefault="qualified"
to the xsd:schema
element of the XSD. This means valid XML must place elements in the target namespace when locally declared in the XSD; otherwise, valid XML must place locally declared elements in no namespace.assignment
be in no namespace. This can be achieved,
for example, by adding xmlns=""
to the assignment
element.Credits: Thanks to Michael Kay for helpful feedback on this answer.
All of the example above should work just add a document ready action and change the order of how you perform the updates to the texts, also make sure your using Script manager alternatively non of this will work for you. Here is the text within the code behind.
aspx
<div class="modal fade" id="myModal" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-dialog">
<asp:UpdatePanel ID="upModal" runat="server" ChildrenAsTriggers="false" UpdateMode="Conditional">
<ContentTemplate>
<div class="modal-content">
<div class="modal-header">
<h4 class="modal-title"><asp:Label ID="lblModalTitle" runat="server" Text=""></asp:Label></h4>
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
</div>
<div class="modal-body">
<asp:Label ID="lblModalBody" runat="server" Text=""></asp:Label>
</div>
<div class="modal-footer">
<button class="btn btn-primary" data-dismiss="modal" aria-hidden="true">Close</button>
</div>
</div>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</div>
Code Behind
lblModalTitle.Text = "Validation Errors";
lblModalBody.Text = form.Error;
upModal.Update();
ScriptManager.RegisterStartupScript(Page, Page.GetType(), "myModal", "$(document).ready(function () {$('#myModal').modal();});", true);
You may still have trouble displaying the output in the Assistant Editor. Rather than wrapping the string in println()
, simply output the string. For example:
for index in 1...5 {
"The number is \(index)"
}
Will write (5 times)
in the playground area. This will allow you to display it in the Assistant Editor (via the little circle on the far right edge).
However, if you were to println("The number is \(index)")
you wouldn't be able to visualize it in the Assistant Editor.
Maybe a bit more lazy:
a = [1,2,3,4]
b = [2,7]
print any((True for x in a if x in b))
Main build.gradle - /build.gradle
buildscript {
...
dependencies {
classpath 'com.android.tools.build:gradle:1.3.1'
// Versions: http://jcenter.bintray.com/com/android/tools/build/gradle/
}
...
}
Module specific build.gradle - /app/build.gradle
android {
compileSdkVersion 23
buildToolsVersion "23.0.1"
...
useLibrary 'org.apache.http.legacy'
...
}
What should be in the .env hasn't been explicitly stated in other solutions, and thought I'd boil it down to the sentence above.
This fixed my 500 error on a fresh install of Laravel.
Steps:
touch .env
)APP_KEY=
php artisan key:generate
Notes:
My particular installation didn't include any .env whatsoever (example or otherwise)
Simply having a blank .env does not work.
A .env containing parameters, but no APP_KEY
parameter, does not work.
Bug?: When generating an app key in terminal, it may report as successful, however no key will actually get placed in the .env if the file has no pre-existing APP_KEY=
line.
As a reference, here's the official .env with useful baseline parameters. Copy-paste what you need:
You can just use an import statement:
from file import *
So, for example, if you had a file named my_script.py
you'd load it like so:
from my_script import *
You (still) can not choose the position of the column using ALTER TABLE: it can only be added to the end of the table. You can obviously select the columns in any order you want, so unless you are using SELECT * FROM column order shouldn't be a big deal.
If you really must have them in a particular order and you can't drop and recreate the table, then you might be able to drop and recreate columns instead:-
First copy the table
CREATE TABLE my_tab_temp AS SELECT * FROM my_tab;
Then drop columns that you want to be after the column you will insert
ALTER TABLE my_tab DROP COLUMN three;
Now add the new column (two in this example) and the ones you removed.
ALTER TABLE my_tab ADD (two NUMBER(2), three NUMBER(10));
Lastly add back the data for the re-created columns
UPDATE my_tab SET my_tab.three = (SELECT my_tab_temp.three FROM my_tab_temp WHERE my_tab.one = my_tab_temp.one);
Obviously your update will most likely be more complex and you'll have to handle indexes and constraints and won't be able to use this in some cases (LOB columns etc). Plus this is a pretty hideous way to do this - but the table will always exist and you'll end up with the columns in a order you want. But does column order really matter that much?
If using the docker-compose file, Based on docker compose version 2.x We can set like as below, by overriding the default config.
ulimits:
nproc: 65535
nofile:
soft: 26677
hard: 46677
I have conda 4.6 with a similar block of code that was added by conda. In my case, there's a conda configuration setting to disable the automatic base activation:
conda config --set auto_activate_base false
The first time you run it, it'll create a ./condarc
in your home directory with that setting to override the default.
This wouldn't de-clutter your .bash_profile
but it's a cleaner solution without manual editing that section that conda manages.
Use the Take method:
var foo = (from t in MyTable
select t.Foo).Take(10);
In VB LINQ has a take expression:
Dim foo = From t in MyTable _
Take 10 _
Select t.Foo
From the documentation:
Take<TSource>
enumeratessource
and yields elements untilcount
elements have been yielded orsource
contains no more elements. Ifcount
exceeds the number of elements insource
, all elements ofsource
are returned.
A self-explanatory simple one-liner to extract token for kubernetes dashboard login.
kubectl describe secret -n kube-system | grep deployment -A 12
Copy the token and paste it on the kubernetes dashboard under token sign in option and you are good to use kubernetes dashboard
Below is the php PDF merge command.
$fileArray= array("name1.pdf","name2.pdf","name3.pdf","name4.pdf");
$datadir = "save_path/";
$outputName = $datadir."merged.pdf";
$cmd = "gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=$outputName ";
//Add each pdf file to the end of the command
foreach($fileArray as $file) {
$cmd .= $file." ";
}
$result = shell_exec($cmd);
I forgot the link from where I found it, but it works fine.
Note: You should have gs (on linux and probably Mac), or Ghostscript (on windows) installed for this to work.
An even simpler solution would be this (IF you are targeting ALL number inputs in a particular form):
//limit number input decimal places to two
$(':input[type="number"]').change(function(){
this.value = parseFloat(this.value).toFixed(2);
});
I installed it successfully by
pip install https://storage.googleapis.com/tensorflow/mac/cpu/tensorflow-1.8.0-py3-none-any.whl
VARCHAR with probably 15-20 length would be sufficient and would be the best option for the database. Since you would probably require various hyphens and plus signs along with your phone numbers.