Instead of using the outrageously convoluted data structures required by ggplot2, you can use the native R functions:
tab<-read.delim(text="
Company 2011 2013
Company1 300 350
Company2 320 430
Company3 310 420
",as.is=TRUE,sep=" ",row.names=1)
tab<-t(tab)
plot(tab[,1],type="b",ylim=c(min(tab),max(tab)),col="red",lty=1,ylab="Value",lwd=2,xlab="Year",xaxt="n")
lines(tab[,2],type="b",col="black",lty=2,lwd=2)
lines(tab[,3],type="b",col="blue",lty=3,lwd=2)
grid()
legend("topleft",legend=colnames(tab),lty=c(1,2,3),col=c("red","black","blue"),bg="white",lwd=2)
axis(1,at=c(1:nrow(tab)),labels=rownames(tab))
If I want the sort to be applied to only one of the UNION if use Union all:
Select id,name,age
From Student
Where age < 15
Union all
Select id,name,age
From
(
Select id,name,age
From Student
Where Name like "%a%"
Order by name
)
I achieved satisfying results with:
min-height: 100%;
min-width: 100%;
this way you always maintain the aspect ratio.
The complete css for an image that will replace "object-fit: cover;":
width: auto;
height: auto;
min-width: 100%;
min-height: 100%;
position: absolute;
right: 50%;
transform: translate(50%, 0);
Integers (int
for short) are the numbers you count with 0, 1, 2, 3 ... and their negative counterparts ... -3, -2, -1 the ones without the decimal part.
So once you introduce a decimal point, your not really dealing with integers. You're dealing with rational numbers. The Python float or decimal types are what you want to represent or approximate these numbers.
You may be used to a language that automatically does this for you(Php). Python, though, has an explicit preference for forcing code to be explicit instead implicit.
Installing OpenCV on Windows 7 for Python 2.7
Eclipse likes lots of RAM. Use at least -Xmx512M. More if available.
For the less specific case (not just the code in the question - since this is one of the first results in Google for this generic error message. This error also occurs when running certain os command with None argument.
For example:
os.path.exists(arg)
os.stat(arg)
Will raise this exception when arg is None.
For me my forked branch was not in sync with the master branch. So I went to bitbucket and synced and merged my forked branch and then tried to take the pull. Then it worked fine.
The Request Payload - or to be more precise: payload body of a HTTP Request
- is the data normally send by a POST or PUT Request.
It's the part after the headers and the CRLF
of a HTTP Request.
A request with Content-Type: application/json
may look like this:
POST /some-path HTTP/1.1
Content-Type: application/json
{ "foo" : "bar", "name" : "John" }
If you submit this per AJAX the browser simply shows you what it is submitting as payload body. That’s all it can do because it has no idea where the data is coming from.
If you submit a HTML-Form with method="POST"
and Content-Type: application/x-www-form-urlencoded
or Content-Type: multipart/form-data
your request may look like this:
POST /some-path HTTP/1.1
Content-Type: application/x-www-form-urlencoded
foo=bar&name=John
In this case the form-data is the request payload. Here the Browser knows more: it knows that bar is the value of the input-field foo of the submitted form. And that’s what it is showing to you.
So, they differ in the Content-Type
but not in the way data is submitted. In both cases the data is in the message-body. And Chrome distinguishes how the data is presented to you in the Developer Tools.
import math
number = int(input("Enter number to print: "))
number_list = ["zero","one","two","three","four","five","six","seven","eight","nine"]
teen_list = ["ten","eleven","twelve","thirteen","fourteen","fifteen","sixteen","seventeen","eighteen","nineteen"]
decades_list =["twenty","thirty","forty","fifty","sixty","seventy","eighty","ninety"]
if number <= 9:
print(number_list[number].capitalize())
elif number >= 10 and number <= 19:
tens = number % 10
print(teen_list[tens].capitalize())
elif number > 19 and number <= 99:
ones = math.floor(number/10)
twos = ones - 2
tens = number % 10
if tens == 0:
print(decades_list[twos].capitalize())
elif tens != 0:
print(decades_list[twos].capitalize() + " " + number_list[tens])
Use onClick event to clear value of target input, each time user clicks on field. This ensures that the onChange event will be triggered for the same file as well. Worked for me :)
onInputClick = (event) => {
event.target.value = ''
}
<input type="file" onChange={onFileChanged} onClick={onInputClick} />
Using TypeScript
onInputClick = ( event: React.MouseEvent<HTMLInputElement, MouseEvent>) => {
const element = event.target as HTMLInputElement
element.value = ''
}
If you want to rotate a vector you should construct what is known as a rotation matrix.
Say you want to rotate a vector or a point by ?, then trigonometry states that the new coordinates are
x' = x cos ? - y sin ?
y' = x sin ? + y cos ?
To demo this, let's take the cardinal axes X and Y; when we rotate the X-axis 90° counter-clockwise, we should end up with the X-axis transformed into Y-axis. Consider
Unit vector along X axis = <1, 0>
x' = 1 cos 90 - 0 sin 90 = 0
y' = 1 sin 90 + 0 cos 90 = 1
New coordinates of the vector, <x', y'> = <0, 1> ? Y-axis
When you understand this, creating a matrix to do this becomes simple. A matrix is just a mathematical tool to perform this in a comfortable, generalized manner so that various transformations like rotation, scale and translation (moving) can be combined and performed in a single step, using one common method. From linear algebra, to rotate a point or vector in 2D, the matrix to be built is
|cos ? -sin ?| |x| = |x cos ? - y sin ?| = |x'|
|sin ? cos ?| |y| |x sin ? + y cos ?| |y'|
That works in 2D, while in 3D we need to take in to account the third axis. Rotating a vector around the origin (a point) in 2D simply means rotating it around the Z-axis (a line) in 3D; since we're rotating around Z-axis, its coordinate should be kept constant i.e. 0° (rotation happens on the XY plane in 3D). In 3D rotating around the Z-axis would be
|cos ? -sin ? 0| |x| |x cos ? - y sin ?| |x'|
|sin ? cos ? 0| |y| = |x sin ? + y cos ?| = |y'|
| 0 0 1| |z| | z | |z'|
around the Y-axis would be
| cos ? 0 sin ?| |x| | x cos ? + z sin ?| |x'|
| 0 1 0| |y| = | y | = |y'|
|-sin ? 0 cos ?| |z| |-x sin ? + z cos ?| |z'|
around the X-axis would be
|1 0 0| |x| | x | |x'|
|0 cos ? -sin ?| |y| = |y cos ? - z sin ?| = |y'|
|0 sin ? cos ?| |z| |y sin ? + z cos ?| |z'|
Note 1: axis around which rotation is done has no sine or cosine elements in the matrix.
Note 2: This method of performing rotations follows the Euler angle rotation system, which is simple to teach and easy to grasp. This works perfectly fine for 2D and for simple 3D cases; but when rotation needs to be performed around all three axes at the same time then Euler angles may not be sufficient due to an inherent deficiency in this system which manifests itself as Gimbal lock. People resort to Quaternions in such situations, which is more advanced than this but doesn't suffer from Gimbal locks when used correctly.
I hope this clarifies basic rotation.
The aforementioned matrices rotate an object at a distance r = v(x² + y²) from the origin along a circle of radius r; lookup polar coordinates to know why. This rotation will be with respect to the world space origin a.k.a revolution. Usually we need to rotate an object around its own frame/pivot and not around the world's i.e. local origin. This can also be seen as a special case where r = 0. Since not all objects are at the world origin, simply rotating using these matrices will not give the desired result of rotating around the object's own frame. You'd first translate (move) the object to world origin (so that the object's origin would align with the world's, thereby making r = 0), perform the rotation with one (or more) of these matrices and then translate it back again to its previous location. The order in which the transforms are applied matters. Combining multiple transforms together is called concatenation or composition.
I urge you to read about linear and affine transformations and their composition to perform multiple transformations in one shot, before playing with transformations in code. Without understanding the basic maths behind it, debugging transformations would be a nightmare. I found this lecture video to be a very good resource. Another resource is this tutorial on transformations that aims to be intuitive and illustrates the ideas with animation (caveat: authored by me!).
A product of the aforementioned matrices should be enough if you only need rotations around cardinal axes (X, Y or Z) like in the question posted. However, in many situations you might want to rotate around an arbitrary axis/vector. The Rodrigues' formula (a.k.a. axis-angle formula) is a commonly prescribed solution to this problem. However, resort to it only if you’re stuck with just vectors and matrices. If you're using Quaternions, just build a quaternion with the required vector and angle. Quaternions are a superior alternative for storing and manipulating 3D rotations; it's compact and fast e.g. concatenating two rotations in axis-angle representation is fairly expensive, moderate with matrices but cheap in quaternions. Usually all rotation manipulations are done with quaternions and as the last step converted to matrices when uploading to the rendering pipeline. See Understanding Quaternions for a decent primer on quaternions.
I got this error when I made the bonehead mistake of importing MatSnackBar
instead of MatSnackBarModule
in app.module.ts
.
The selected answer is probably correct but it seems needlessly unclear.
I found Shomz's Fiddle to be very helpful, but again, needlessly unclear. (Edit: I now see that that Fiddle is based on the OP's Fiddle.)
Here's my version (which I've created a Fiddle for) which I think is more clear:
function downloadableCSV(rows) {
var content = "data:text/csv;charset=utf-8,";
rows.forEach(function(row, index) {
content += row.join(",") + "\n";
});
return encodeURI(content);
}
var rows = [
["name1", 2, 3],
["name2", 4, 5],
["name3", 6, 7],
["name4", 8, 9],
["name5", 10, 11]
];
$("#download").click(function() {
window.open(downloadableCSV(rows));
});
I use this function merge
CREATE OR REPLACE FUNCTION merge_tabla(key INT, data TEXT)
RETURNS void AS
$BODY$
BEGIN
IF EXISTS(SELECT a FROM tabla WHERE a = key)
THEN
UPDATE tabla SET b = data WHERE a = key;
RETURN;
ELSE
INSERT INTO tabla(a,b) VALUES (key, data);
RETURN;
END IF;
END;
$BODY$
LANGUAGE plpgsql
PHPSESSID is an auto generated session cookie by the server which contains a random long number which is given out by the server itself
$(function(){ _x000D_
$('.bordered').css({_x000D_
"border":"1px solid #EFEFEF",_x000D_
"margin":"0 auto",_x000D_
"width":"80%"_x000D_
});_x000D_
_x000D_
$('h1').css({_x000D_
"margin-left":"10px"_x000D_
});_x000D_
_x000D_
$('#myParagraph').css({_x000D_
"margin-left":"10px",_x000D_
"font-family":"sans-serif"_x000D_
});_x000D_
_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>_x000D_
<div class="bordered">_x000D_
<h1>Header</h1>_x000D_
<p id="myParagraph">This is some paragraph text</p>_x000D_
</div>
_x000D_
You can use the following:
/// <summary>
/// Serializes an object.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="serializableObject"></param>
/// <param name="fileName"></param>
public void SerializeObject<T>(T serializableObject, string fileName)
{
if (serializableObject == null) { return; }
try
{
XmlDocument xmlDocument = new XmlDocument();
XmlSerializer serializer = new XmlSerializer(serializableObject.GetType());
using (MemoryStream stream = new MemoryStream())
{
serializer.Serialize(stream, serializableObject);
stream.Position = 0;
xmlDocument.Load(stream);
xmlDocument.Save(fileName);
}
}
catch (Exception ex)
{
//Log exception here
}
}
/// <summary>
/// Deserializes an xml file into an object list
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="fileName"></param>
/// <returns></returns>
public T DeSerializeObject<T>(string fileName)
{
if (string.IsNullOrEmpty(fileName)) { return default(T); }
T objectOut = default(T);
try
{
XmlDocument xmlDocument = new XmlDocument();
xmlDocument.Load(fileName);
string xmlString = xmlDocument.OuterXml;
using (StringReader read = new StringReader(xmlString))
{
Type outType = typeof(T);
XmlSerializer serializer = new XmlSerializer(outType);
using (XmlReader reader = new XmlTextReader(read))
{
objectOut = (T)serializer.Deserialize(reader);
}
}
}
catch (Exception ex)
{
//Log exception here
}
return objectOut;
}
You can get the PID of a particular process like MySQL by using following commands: ps -e | pgrep mysql
This command will give you the PID of MySQL rocess. e.g, 13954 Now, type following command on terminal. kill -9 13954 This will kill the process of MySQL.
The server first tries to authenticate you by public key. That doesn't work (I guess you haven't set one up), so it then falls back to 'keyboard-interactive'. It should then ask you for a password, which presumably you're not getting right. Did you see a password prompt?
Shameless plug, but you can use findHandlerJS
To use it you just have to include findHandlersJS (or just copy&paste the raw javascript code to chrome's console window) and specify the event type and a jquery selector for the elements you are interested in.
For your example you could quickly find the event handlers you mentioned by doing
findEventHandlers("click", "#el")
findEventHandlers("mouseover", "#el")
This is what gets returned:
You can try it here
In addition to the suggestions in this thread, I wanted to mention that if you need to return dot files as well (.gitignore, etc), with Dir.glob you would need to include a flag as so:
Dir.glob("/path/to/dir/*", File::FNM_DOTMATCH)
By default, Dir.entries includes dot files, as well as current a parent directories.
For anyone interested, I was curious how the answers here compared to each other in execution time, here was the results against deeply nested hierarchy. The first three results are non-recursive:
user system total real
Dir[*]: (34900 files stepped over 100 iterations)
0.110729 0.139060 0.249789 ( 0.249961)
Dir.glob(*): (34900 files stepped over 100 iterations)
0.112104 0.142498 0.254602 ( 0.254902)
Dir.entries(): (35600 files stepped over 100 iterations)
0.142441 0.149306 0.291747 ( 0.291998)
Dir[**/*]: (2211600 files stepped over 100 iterations)
9.399860 15.802976 25.202836 ( 25.250166)
Dir.glob(**/*): (2211600 files stepped over 100 iterations)
9.335318 15.657782 24.993100 ( 25.006243)
Dir.entries() recursive walk: (2705500 files stepped over 100 iterations)
14.653018 18.602017 33.255035 ( 33.268056)
Dir.glob(**/*, File::FNM_DOTMATCH): (2705500 files stepped over 100 iterations)
12.178823 19.577409 31.756232 ( 31.767093)
These were generated with the following benchmarking script:
require 'benchmark'
base_dir = "/path/to/dir/"
n = 100
Benchmark.bm do |x|
x.report("Dir[*]:") do
i = 0
n.times do
i = i + Dir["#{base_dir}*"].select {|f| !File.directory? f}.length
end
puts " (#{i} files stepped over #{n} iterations)"
end
x.report("Dir.glob(*):") do
i = 0
n.times do
i = i + Dir.glob("#{base_dir}/*").select {|f| !File.directory? f}.length
end
puts " (#{i} files stepped over #{n} iterations)"
end
x.report("Dir.entries():") do
i = 0
n.times do
i = i + Dir.entries(base_dir).select {|f| !File.directory? File.join(base_dir, f)}.length
end
puts " (#{i} files stepped over #{n} iterations)"
end
x.report("Dir[**/*]:") do
i = 0
n.times do
i = i + Dir["#{base_dir}**/*"].select {|f| !File.directory? f}.length
end
puts " (#{i} files stepped over #{n} iterations)"
end
x.report("Dir.glob(**/*):") do
i = 0
n.times do
i = i + Dir.glob("#{base_dir}**/*").select {|f| !File.directory? f}.length
end
puts " (#{i} files stepped over #{n} iterations)"
end
x.report("Dir.entries() recursive walk:") do
i = 0
n.times do
def walk_dir(dir, result)
Dir.entries(dir).each do |file|
next if file == ".." || file == "."
path = File.join(dir, file)
if Dir.exist?(path)
walk_dir(path, result)
else
result << file
end
end
end
result = Array.new
walk_dir(base_dir, result)
i = i + result.length
end
puts " (#{i} files stepped over #{n} iterations)"
end
x.report("Dir.glob(**/*, File::FNM_DOTMATCH):") do
i = 0
n.times do
i = i + Dir.glob("#{base_dir}**/*", File::FNM_DOTMATCH).select {|f| !File.directory? f}.length
end
puts " (#{i} files stepped over #{n} iterations)"
end
end
The differences in file counts are due to Dir.entries
including hidden files by default. Dir.entries
ended up taking a bit longer in this case due to needing to rebuild the absolute path of the file to determine if a file was a directory, but even without that it was still taking consistently longer than the other options in the recursive case. This was all using ruby 2.5.1 on OSX.
The .getTimezoneOffset()
method reports the time-zone offset in minutes, counting "westwards" from the GMT/UTC timezone, resulting in an offset value that is negative to what one is commonly accustomed to. (Example, New York time would be reported to be +240 minutes or +4 hours)
To the get a normal time-zone offset in hours, you need to use:
var timeOffsetInHours = -(new Date()).getTimezoneOffset()/60
Important detail:
Note that daylight savings time is factored into the result - so what this method gives you is really the time offset - not the actual geographic time-zone offset.
No packages needed:
String paddedString = i < 100 ? i < 10 ? "00" + i : "0" + i : "" + i;
This will pad the string to three characters, and it is easy to add a part more for four or five. I know this is not the perfect solution in any way (especially if you want a large padded string), but I like it.
You can use RuleBasedNumberFormat. for example result will give you Ninety
ULocale locale = new ULocale(Locale.US); //us english
Double d = Double.parseDouble(90);
NumberFormat formatter = new RuleBasedNumberFormat(locale, RuleBasedNumberFormat.SPELLOUT);
String result = formatter.format(d);
It supports a wide range of languages.
Take a look at jfxmessagebox (http://en.sourceforge.jp/projects/jfxmessagebox/) if you are looking for very simple dialog popups.
TL;DR Log all your queries and tail the mysql log.
These directions are for my install of Ubuntu 14.04. Issue command lsb_release -a
to get your version. Your install might be different.
cd /etc/mysql
. You should see a file called my.cnf
. That’s the file we’re gonna change.cat my.cnf | grep general_log
. This filters the my.cnf
file for you. You should see two entries: #general_log_file = /var/log/mysql/mysql.log
&& #general_log = 1
.sudo service mysql restart
. sudo service nginx restart
.Nice work! You’re all set. Now all you have to do is tail the log file so you can see the PDO queries your app makes in real time.
Enter this cmd tail -f /var/log/mysql/mysql.log
.
Your output will look something like this:
73 Connect xyz@localhost on your_db
73 Query SET NAMES utf8mb4
74 Connect xyz@localhost on your_db
75 Connect xyz@localhost on your_db
74 Quit
75 Prepare SELECT email FROM customer WHERE email=? LIMIT ?
75 Execute SELECT email FROM customer WHERE email='[email protected]' LIMIT 5
75 Close stmt
75 Quit
73 Quit
Any new queries your app makes will automatically pop into view, as long as you continue tailing the log. To exit the tail, hit cmd/ctrl c
.
truncate --size 0 mysql.log
.Huge shout out to Nathan Long’s answer above for the inspo to figure this out on Ubuntu. Also to dikirill for his comment on Nathan’s post which lead me to this solution.
Love you stackoverflow!
I would use git restore
(available since git 2.23)
git restore --source otherbranch path/to/myfile.txt
Why it is better than other options?
git checkout otherbranch -- path/to/myfile.txt
- It copy file to working directory but also to staging area (similar effect as if you would copy this file manually and executed git add
on it). git restore
doesn't touch staging area (unless told it to by --staged
option).
git show otherbranch:path/to/myfile.txt > path/to/myfile.txt
uses standard shell redirection. If you use Powershell then there might be problem with text enconding or you could get broken file if it's binary. With git restore
changing files is done all by git
executable.
Another advantage is that you can restore whole folder with:
git restore --source otherbranch path/to
or with git restore --overlay --source otherbranch path/to
if you want to avoid deleting files. For example if there is less files on otherbranch
than in current working directory (and these files are tracked) without --overlay
option git restore
will delete them. But this is good default bahaviour, you most likely want the state of directory to be "the same like in otherbranch
", not "the same like in otherbranch
but with additional files from my current branch"
This often happens to me when I know there are changes on the remote master, so I try to merge them using git merge master
. However, this doesn't merge with the remote master, but with your local master.
So before doing the merge, checkout master, and then git pull
there. Then you will be able to merge the new changes into your branch.
My way is @Html.CheckBoxFor(model => model.As, new { @value= "true" })
(meaning is checked)
I had a same issue. It was working fine on the local machine but it had issues on the server. I have changed the SMTP setting. It works fine for me.
If you're using GoDaddy Plesk Hosting, use the following SMTP details.
Host = relay-hosting.secureserver.net
Port = 25
This post has the answer you are looking for:
http://weblogs.asp.net/sfurman/archive/2003/03/07/3537.aspx
Basically this is what it says:
Return Value
The number nearest value with precision equal to digits. If value is halfway between two numbers, one of which is even and the other odd, then the even number is returned. If the precision of value is less than digits, then value is returned unchanged.
The behavior of this method follows IEEE Standard 754, section 4. This kind of rounding is sometimes called rounding to nearest, or banker's rounding. If digits is zero, this kind of rounding is sometimes called rounding toward zero.
@JoinColumn(name="reference_column_name")
annotation can be used above that property or field of class that is being referenced from some other entity.
With an angular {{expression}} you can add the old user or user.id value to the ng-change attribute as a literal string:
<select ng-change="updateValue(user, '{{user.id}}')"
ng-model="user.id" ng-options="user.id as user.name for user in users">
</select>
On ngChange, the 1st argument to updateValue will be the new user value, the 2nd argument will be the literal that was formed when the select-tag was last updated by angular, with the old user.id value.
If you need a dynamic choice field in django admin; This works for django >=2.1.
class CarAdminForm(forms.ModelForm):
class Meta:
model = Car
def __init__(self, *args, **kwargs):
super(CarForm, self).__init__(*args, **kwargs)
# Now you can make it dynamic.
choices = (
('audi', 'Audi'),
('tesla', 'Tesla')
)
self.fields.get('car_field').choices = choices
car_field = forms.ChoiceField(choices=[])
@admin.register(Car)
class CarAdmin(admin.ModelAdmin):
form = CarAdminForm
Hope this helps.
The below changes fixed my problem.
I struggled with the same error for a week. I would like to share with you all that the solution is simply host = ''
in the server and the client host = ip
of the server.
the sort method contains an optional argument to pass a custom compare function.
Assuming you wanted an array of arrays:
var arr = [[3, "Mike", 20],[5, "Alex", 15]];
function compareName(a, b)
{
if (a[1] < b[1]) return -1;
if (a[1] > b[1]) return 1;
return 0;
}
arr.sort(compareName);
Otherwise if you wanted an array of objects, you could do:
function compareName(a, b)
{
if (a.name < b.name) return -1;
if (a.name > b.name) return 1;
return 0;
}
here is what works with the version of the program that I'm using: may work for you too.
I will just place the instruction and command that does it. class is the name of the table. you change it in the table its self with this method. not just the return on the search process.
view the table class
select * from class
change the length of the columns FacID (seen as "faci") and classnumber (seen as "classnu") to fit the whole labels.
alter table class modify facid varchar (5);
alter table class modify classnumber varchar(11);
view table again to see the difference
select * from class;
(run the command again to see the difference)
This changes the the actual table for good, but for better.
P.S. I made these instructions up as a note for the commands. This is not a test, but can help on one :)
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.
Before try running npm run dev
please run npm install --no-bin-links
in the project directory, this will install all required packages.
Also check this link for compiling instruction.
https://laravel.com/docs/5.4/mix
Also double check in your conf
file, wherever you find something like this
(something)/cross-env/bin/(something)
change it to
(something)/cross-env/dist/bin/(something)
If you are using homestead, in package.json
paste this
{
"private": true,
"scripts": {
"dev": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
"watch": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
"watch-poll": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --watch-poll --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
"hot": "cross-env NODE_ENV=development node_modules/webpack-dev-server/bin/webpack-dev-server.js --inline --hot --config=node_modules/laravel-mix/setup/webpack.config.js",
"production": "cross-env NODE_ENV=production node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"
},
"devDependencies": {
"axios": "^0.15.3",
"bootstrap-sass": "^3.3.7",
"cross-env": "^3.2.3",
"jquery": "^3.1.1",
"laravel-mix": "^0.8.1",
"lodash": "^4.17.4",
"vue": "^2.1.10"
}
}
Also check this link https://github.com/JeffreyWay/laravel-mix/issues/478
This will put the ellipsis in the center of the line:
function truncate( str, max, sep ) {
// Default to 10 characters
max = max || 10;
var len = str.length;
if(len > max){
// Default to elipsis
sep = sep || "...";
var seplen = sep.length;
// If seperator is larger than character limit,
// well then we don't want to just show the seperator,
// so just show right hand side of the string.
if(seplen > max) {
return str.substr(len - max);
}
// Half the difference between max and string length.
// Multiply negative because small minus big.
// Must account for length of separator too.
var n = -0.5 * (max - len - seplen);
// This gives us the centerline.
var center = len/2;
var front = str.substr(0, center - n);
var back = str.substr(len - center + n); // without second arg, will automatically go to end of line.
return front + sep + back;
}
return str;
}
console.log( truncate("123456789abcde") ); // 123...bcde (using built-in defaults)
console.log( truncate("123456789abcde", 8) ); // 12...cde (max of 8 characters)
console.log( truncate("123456789abcde", 12, "_") ); // 12345_9abcde (customize the separator)
For example:
1234567890 --> 1234...8910
And:
A really long string --> A real...string
Not perfect, but functional. Forgive the over-commenting... for the noobs.
this will help:
NotificationManager mNotificationManager = (NotificationManager)
getSystemService(NOTIFICATION_SERVICE);
mNotificationManager.cancelAll();
this should remove all notifications made by the app
and if you create a notification by calling
startForeground();
inside a Service.you may have to call
stopForeground(false);
first,then cancel the notification.
Five years late to the party.
It is mentioned in the provided links of the accepted answer, but I think it deserves an explicit answer on SO - dynamically building the query based on provided parameters. E.g.:
Setup
-- drop table Person
create table Person
(
PersonId INT NOT NULL IDENTITY(1, 1) CONSTRAINT PK_Person PRIMARY KEY,
FirstName NVARCHAR(64) NOT NULL,
LastName NVARCHAR(64) NOT NULL,
Title NVARCHAR(64) NULL
)
GO
INSERT INTO Person (FirstName, LastName, Title)
VALUES ('Dick', 'Ormsby', 'Mr'), ('Serena', 'Kroeger', 'Ms'),
('Marina', 'Losoya', 'Mrs'), ('Shakita', 'Grate', 'Ms'),
('Bethann', 'Zellner', 'Ms'), ('Dexter', 'Shaw', 'Mr'),
('Zona', 'Halligan', 'Ms'), ('Fiona', 'Cassity', 'Ms'),
('Sherron', 'Janowski', 'Ms'), ('Melinda', 'Cormier', 'Ms')
GO
Procedure
ALTER PROCEDURE spDoSearch
@FirstName varchar(64) = null,
@LastName varchar(64) = null,
@Title varchar(64) = null,
@TopCount INT = 100
AS
BEGIN
DECLARE @SQL NVARCHAR(4000) = '
SELECT TOP ' + CAST(@TopCount AS VARCHAR) + ' *
FROM Person
WHERE 1 = 1'
PRINT @SQL
IF (@FirstName IS NOT NULL) SET @SQL = @SQL + ' AND FirstName = @FirstName'
IF (@LastName IS NOT NULL) SET @SQL = @SQL + ' AND FirstName = @LastName'
IF (@Title IS NOT NULL) SET @SQL = @SQL + ' AND Title = @Title'
EXEC sp_executesql @SQL, N'@TopCount INT, @FirstName varchar(25), @LastName varchar(25), @Title varchar(64)',
@TopCount, @FirstName, @LastName, @Title
END
GO
Usage
exec spDoSearch @TopCount = 3
exec spDoSearch @FirstName = 'Dick'
Pros:
Cons:
Not direct answer, but related to the problem aka the big picture
Usually, these filtering stored procedures do not float around, but are being called from some service layer. This leaves the option of moving away business logic (filtering) from SQL to service layer.
One example is using LINQ2SQL to generate the query based on provided filters:
public IList<SomeServiceModel> GetServiceModels(CustomFilter filters)
{
var query = DataAccess.SomeRepository.AllNoTracking;
// partial and insensitive search
if (!string.IsNullOrWhiteSpace(filters.SomeName))
query = query.Where(item => item.SomeName.IndexOf(filters.SomeName, StringComparison.OrdinalIgnoreCase) != -1);
// filter by multiple selection
if ((filters.CreatedByList?.Count ?? 0) > 0)
query = query.Where(item => filters.CreatedByList.Contains(item.CreatedById));
if (filters.EnabledOnly)
query = query.Where(item => item.IsEnabled);
var modelList = query.ToList();
var serviceModelList = MappingService.MapEx<SomeDataModel, SomeServiceModel>(modelList);
return serviceModelList;
}
Pros:
Cons:
You can do as follow :
import json
exDict = {1:1, 2:2, 3:3}
file.write(json.dumps(exDict))
https://developer.rhino3d.com/guides/rhinopython/python-xml-json/
I don't know why, but this helped and worked for me.
<input type="password" name="pwd" autocomplete="new-password">
I have no idea why, but autocomplete="new-password" disables autofill. It worked in latest 49.0.2623.112 chrome version.
The posts here help me a lot on my way to find a solution for the Uncaught TypeError: Cannot read property 'value' of undefined issue.
There are already here many answers which are correct, but what we don't have here is the combination for 2 answers that i think resolve this issue completely.
function myFunction(field, data){
if (typeof document.getElementsByName("+field+")[0] != 'undefined'){
document.getElementsByName("+field+")[0].value=data;
}
}
The difference is that you make a check(if a property is defined or not) and if the check is true then you can try to assign it a value.
Another option is to use JQuery to store the element's in-line style property, append to it, and to then update the element's style property with the new values. As follows:
function appendCSSToElement(element, CssProperties)
{
var existingCSS = $(element).attr("style");
if(existingCSS == undefined) existingCSS = "";
$.each(CssProperties, function(key,value)
{
existingCSS += " " + key + ": " + value + ";";
});
$(element).attr("style", existingCSS);
return $(element);
}
And then execute it with the new CSS attributes as an object.
appendCSSToElement("#ElementID", { "color": "white", "background-color": "green", "font-weight": "bold" });
This may not necessarily be the most efficient method (I'm open to suggestions on how to improve this. :) ), but it definitely works.
I'd suggest <a href='page1.jsp'>Refresh</a>
.
Update: a better idea, set the "AppendDataBoundItems" property to true, then declare the "Choose item" declaratively. The databinding operation will add to the statically declared item.
<asp:DropDownList ID="ddl" runat="server" AppendDataBoundItems="true">
<asp:ListItem Value="0" Text="Please choose..."></asp:ListItem>
</asp:DropDownList>
-Oisin
The itertools module has lots of great stuff in it. So if a standard slice (as used by Levon) does not do what you want, then try the islice
function:
from itertools import islice
l = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20]
iterator = islice(l, 10)
for item in iterator:
print item
Intellij IDEA 2017.3.4 - 2018.2 (Ultimate) on OSX
CMD + fn + F12
will show all members of the current class in a popup window, then you can search method in that class.
BUT, this answer is depends on your Keyboard setting. If your keyboard setting in
System Preferences > Keyboard > Use all F1, F2, etc. keys as standard function keys
is selected, then the shortcut becomes
CMD + F12
As mentioned by evanmcdonnal, the easiest solution is to process this as string instead of JSON,
var json = [{"_id":"5078c3a803ff4197dc81fbfb","email":"[email protected]","image":"some_image_url","name":"Name 1"},{"_id":"5078c3a803ff4197dc81fbfc","email":"[email protected]","image":"some_image_url","name":"Name 2"}];_x000D_
_x000D_
json = JSON.parse(JSON.stringify(json).split('"_id":').join('"id":'));_x000D_
_x000D_
document.write(JSON.stringify(json));
_x000D_
This will convert given JSON data to string and replace "_id" to "id" then converting it back to the required JSON format. But I used split
and join
instead of replace
, because replace
will replace only the first occurrence of the string.
This is actually pretty easy in Excel (or any spreadsheet application).
You'll want to use the =CONCATENATE()
function as shown in the formula bar in the following screenshot:
Step 1 involves adding quotes in column B,
Step 2 involves specifying the function and then copying it down column C (by now your spreadsheet should look like the screenshot),
Step 3 (if you need the text outside of the formula) involves copying column C, right-clicking on column D, choosing Paste Special >> Paste Values. Column D should then contain the text that was calculated in column C.
You can enable log4j internal logging by defining the 'log4j.debug' variable.
So why don't you simply use a key-value literal?
var params = {
'slide0001.html': 'Looking Ahead',
'slide0002.html': 'Forecase',
...
};
return params['slide0001.html']; // returns: Looking Ahead
You can also try clicking by JavaScript:
WebElement button = driver.findElement(By.id("someid"));
JavascriptExecutor jse = (JavascriptExecutor)driver;
jse.executeScript("arguments[0].click();", button);
Also you can use jquery. In worst cases, for stubborn pages it may be necessary to do clicks by custom EXE application. But try the obvious solutions first.
I only just noticed this question, and wanted to add my $.02 to this.
In case of Java, this is not actually an option. The "unreachable code" error doesn't come from the fact that JVM developers thought to protect developers from anything, or be extra vigilant, but from the requirements of the JVM specification.
Both Java compiler, and JVM, use what is called "stack maps" - a definite information about all of the items on the stack, as allocated for the current method. The type of each and every slot of the stack must be known, so that a JVM instruction doesn't mistreat item of one type for another type. This is mostly important for preventing having a numeric value ever being used as a pointer. It's possible, using Java assembly, to try to push/store a number, but then pop/load an object reference. However, JVM will reject this code during class validation,- that is when stack maps are being created and tested for consistency.
To verify the stack maps, the VM has to walk through all the code paths that exist in a method, and make sure that no matter which code path will ever be executed, the stack data for every instruction agrees with what any previous code has pushed/stored in the stack. So, in simple case of:
Object a;
if (something) { a = new Object(); } else { a = new String(); }
System.out.println(a);
at line 3, JVM will check that both branches of 'if' have only stored into a (which is just local var#0) something that is compatible with Object (since that's how code from line 3 and on will treat local var#0).
When compiler gets to an unreachable code, it doesn't quite know what state the stack might be at that point, so it can't verify its state. It can't quite compile the code anymore at that point, as it can't keep track of local variables either, so instead of leaving this ambiguity in the class file, it produces a fatal error.
Of course a simple condition like if (1<2)
will fool it, but it's not really fooling - it's giving it a potential branch that can lead to the code, and at least both the compiler and the VM can determine, how the stack items can be used from there on.
P.S. I don't know what .NET does in this case, but I believe it will fail compilation as well. This normally will not be a problem for any machine code compilers (C, C++, Obj-C, etc.)
The Philippe solution but cleaner:
My subtraction data is: '2018-09-22T11:05:00.000Z'
import datetime
import pandas as pd
df_modified = pd.to_datetime(df_reference.index.values) - datetime.datetime(2018, 9, 22, 11, 5, 0)
package main
import "encoding/json"
func main() {
in := []byte(`{ "votes": { "option_A": "3" } }`)
var raw map[string]interface{}
if err := json.Unmarshal(in, &raw); err != nil {
panic(err)
}
raw["count"] = 1
out, err := json.Marshal(raw)
if err != nil {
panic(err)
}
println(string(out))
}
As a similar approach to the accepted answer that might be considered a bit more readable, elegant, and general (YMMV), you can leverage the map
method:
# OP example
df['var3'].map(lambda n: '{:,.2%}'.format(n))
# also works on a series
series_example.map(lambda n: '{:,.2%}'.format(n))
Performance-wise, this is pretty close (marginally slower) than the OP solution.
As an aside, if you do choose to go the pd.options.display.float_format
route, consider using a context manager to handle state per this parallel numpy example.
I think you will have to loop over the "inserted" table, which contains all rows that were updated. You can use a WHERE loop, or a WITH statement if your primary key is a GUID. This is the simpler (for me) to write, so here is my example. We use this approach, so I know for a fact it works fine.
ALTER TRIGGER [dbo].[RA2Newsletter] ON [dbo].[Reiseagent]
AFTER INSERT
AS
-- This is your primary key. I assume INT, but initialize
-- to minimum value for the type you are using.
DECLARE @rAgent_ID INT = 0
-- Looping variable.
DECLARE @i INT = 0
-- Count of rows affected for looping over
DECLARE @count INT
-- These are your old variables.
DECLARE @rAgent_Name NVARCHAR(50)
DECLARE @rAgent_Email NVARCHAR(50)
DECLARE @rAgent_IP NVARCHAR(50)
DECLARE @hotelID INT
DECLARE @retval INT
BEGIN
SET NOCOUNT ON ;
-- Get count of affected rows
SELECT @Count = Count(rAgent_ID)
FROM inserted
-- Loop over rows affected
WHILE @i < @count
BEGIN
-- Get the next rAgent_ID
SELECT TOP 1
@rAgent_ID = rAgent_ID
FROM inserted
WHERE rAgent_ID > @rAgent_ID
ORDER BY rAgent_ID ASC
-- Populate values for the current row
SELECT @rAgent_Name = rAgent_Name,
@rAgent_Email = rAgent_Email,
@rAgent_IP = rAgent_IP,
@hotelID = hotelID
FROM Inserted
WHERE rAgent_ID = @rAgent_ID
-- Run your stored procedure
EXEC insert2Newsletter '', '', @rAgent_Name, @rAgent_Email,
@rAgent_IP, @hotelID, 'RA', @retval
-- Set up next iteration
SET @i = @i + 1
END
END
GO
I sure hope this helps you out. Cheers!
read
does not export the variable (which is a good thing most of the time). Here's an alternative which can be exported in one command, can preserve or discard linefeeds, and allows mixing of quoting-styles as needed. Works for bash and zsh.
oneLine=$(printf %s \
a \
" b " \
$'\tc\t' \
'd ' \
)
multiLine=$(printf '%s\n' \
a \
" b " \
$'\tc\t' \
'd ' \
)
I admit the need for quoting makes this ugly for SQL, but it answers the (more generally expressed) question in the title.
I use it like this
export LS_COLORS=$(printf %s \
':*rc=36:*.ini=36:*.inf=36:*.cfg=36:*~=33:*.bak=33:*$=33' \
...
':bd=40;33;1:cd=40;33;1:or=1;31:mi=31:ex=00')
in a file sourced from both my .bashrc
and .zshrc
.
Your quotes are in the wrong spot. Here's a simple example:
<div style={{backgroundColor: "#FF0000"}}>red</div>
I've encountered same problem and not found any appropriate solution for my case, so I decided to go another way. I've created custom drawable class. Within this class I've created 2 Paints for progress line and background line (with some bigger stroke). First of all set startAngle and sweepAngle in constructor:
mSweepAngle = 0;
mStartAngle = 270;
Here is onDraw method of this class:
@Override
public void draw(Canvas canvas) {
// draw background line
canvas.drawArc(mRectF, 0, 360, false, mPaintBackground);
// draw progress line
canvas.drawArc(mRectF, mStartAngle, mSweepAngle, false, mPaintProgress);
}
So now all you need to do is set this drawable as a backgorund of the view, in background thread change sweepAngle:
mSweepAngle += 360 / totalTimerTime // this is mStep
and directly call InvalidateSelf() with some interval (e.g every 1 second or more often if you want smooth progress changes) on the view that have this drawable as a background. Thats it!
P.S. I know, I know...of course you want some more code. So here it is all flow:
Create XML view :
<View
android:id="@+id/timer"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
Create and configure Custom Drawable class (as I described above). Don't forget to setup Paints for lines. Here paint for progress line:
mPaintProgress = new Paint();
mPaintProgress.setAntiAlias(true);
mPaintProgress.setStyle(Paint.Style.STROKE);
mPaintProgress.setStrokeWidth(widthProgress);
mPaintProgress.setStrokeCap(Paint.Cap.ROUND);
mPaintProgress.setColor(colorThatYouWant);
Same for backgroung paint (set width little more if you want)
In drawable class create method for updating (Step calculation described above)
public void update() {
mSweepAngle += mStep;
invalidateSelf();
}
Set this drawable class to YourTimerView (I did it in runtime) - view with @+id/timer from xml above:
OurSuperDrawableClass superDrawable = new OurSuperDrawableClass();
YourTimerView.setBackgroundDrawable(superDrawable);
Create background thread with runnable and update view:
YourTimerView.post(new Runnable() {
@Override
public void run() {
// update progress view
superDrawable.update();
}
});
Thats it ! Enjoy your cool progress bar. Here screenshot of result if you're too bored of this amount of text.
The thing is that the printf function needs a pointer as parameter. However a char is a variable that you have directly acces. A string is a pointer on the first char of the string, so you don't have to add the * because * is the identifier for the pointer of a variable.
for Sprig-boot User both PropertyPlaceholderConfigurer and the new PropertySourcesPlaceholderConfigurer added in Spring 3.1. so it's straightforward to access properties file. just inject
Note: Make sure your property must not be Static
@Value("${key.value1}")
private String value;
The table normally contains multiple rows. Use a loop and use row.Field<string>(0)
to access the value of each row.
foreach(DataRow row in dt.Rows)
{
string file = row.Field<string>("File");
}
You can also access it via index:
foreach(DataRow row in dt.Rows)
{
string file = row.Field<string>(0);
}
If you expect only one row, you can also use the indexer of DataRowCollection
:
string file = dt.Rows[0].Field<string>(0);
Since this fails if the table is empty, use dt.Rows.Count
to check if there is a row:
if(dt.Rows.Count > 0)
file = dt.Rows[0].Field<string>(0);
A simpler (in my view) solution is to create a new dictionary and update it with the contents of the old one:
my_dict={'a':1}
my_copy = {}
my_copy.update( my_dict )
my_dict['a']=2
my_dict['a']
Out[34]: 2
my_copy['a']
Out[35]: 1
The problem with this approach is it may not be 'deep enough'. i.e. is not recursively deep. good enough for simple objects but not for nested dictionaries. Here is an example where it may not be deep enough:
my_dict1={'b':2}
my_dict2={'c':3}
my_dict3={ 'b': my_dict1, 'c':my_dict2 }
my_copy = {}
my_copy.update( my_dict3 )
my_dict1['b']='z'
my_copy
Out[42]: {'b': {'b': 'z'}, 'c': {'c': 3}}
By using Deepcopy() I can eliminate the semi-shallow behavior, but I think one must decide which approach is right for your application. In most cases you may not care, but should be aware of the possible pitfalls... final example:
import copy
my_copy2 = copy.deepcopy( my_dict3 )
my_dict1['b']='99'
my_copy2
Out[46]: {'b': {'b': 'z'}, 'c': {'c': 3}}
In theory, there's nothing preventing you from sending a request body in a GET
request. The HTTP protocol allows it, but have no defined semantics, so it's up to you to document what exactly is going to happen when a client sends a GET
payload. For instance, you have to define if parameters in a JSON body are equivalent to querystring parameters or something else entirely.
However, since there are no clearly defined semantics, you have no guarantee that implementations between your application and the client will respect it. A server or proxy might reject the whole request, or ignore the body, or anything else. The REST way to deal with broken implementations is to circumvent it in a way that's decoupled from your application, so I'd say you have two options that can be considered best practices.
The simple option is to use POST
instead of GET
as recommended by other answers. Since POST
is not standardized by HTTP, you'll have to document how exactly that's supposed to work.
Another option, which I prefer, is to implement your application assuming the GET
payload is never tampered with. Then, in case something has a broken implementation, you allow clients to override the HTTP method with the X-HTTP-Method-Override
, which is a popular convention for clients to emulate HTTP methods with POST
. So, if a client has a broken implementation, it can write the GET
request as a POST
, sending the X-HTTP-Method-Override: GET
method, and you can have a middleware that's decoupled from your application implementation and rewrites the method accordingly. This is the best option if you're a purist.
Unfortunately, it's not possible with CSS currently, but you can use Number.prototype.toLocaleString()
. It can also format for other number formats, e.g. latin, arabic, etc.
postgresql get seconds difference between timestamps
SELECT (
(extract (epoch from (
'2012-01-01 18:25:00'::timestamp - '2012-01-01 18:25:02'::timestamp
)
)
)
)::integer
which prints:
-2
Because the timestamps are two seconds apart. Take the number and divide by 60 to get minutes, divide by 60 again to get hours.
I've found timezone.make_aware(datetime.datetime.now())
is helpful in django (I'm on 1.9.1). Unfortunately you can't simply make a datetime
object offset-aware, then timetz()
it. You have to make a datetime
and make comparisons based on that.
Yes, it is called Inline CSS, Here you styling the div
using some height, width, and background.
Here the example:
<div style="width:50px;height:50px;background color:red">
You can achieve same using Internal or External CSS
2.Internal CSS:
<head>
<style>
div {
height:50px;
width:50px;
background-color:red;
foreground-color:white;
}
</style>
</head>
<body>
<div></div>
</body>
3.External CSS:
<head>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div></div>
</body>
style.css /external css file/
div {
height:50px;
width:50px;
background-color:red;
}
You can instantiate an array of "object type" in one line like this (just replace new Object() with your object):
var elements = 1000;
var MyArray = Array.apply(null, Array(elements)).map(function () { return new Object(); });
It's not a better idea to override the core.common file of codeigniter. Because that's the more tested and system files....
I make a solution for this problem. In your ckeditor_helper.php file line- 65
if($k !== end (array_keys($data['config']))) {
$return .= ",";
}
Change this to-->
$segment = array_keys($data['config']);
if($k !== end($segment)) {
$return .= ",";
}
I think this is the best solution and then your problem notice will dissappear.
Adding this answer partially because it fixed my problem of the same issue and so I can bookmark this question myself.
I was able to fix it by doing the following:
sudo apt-get install gcc-multilib g++-multilib
If you've installed a version of gcc
/ g++
that doesn't ship by default (such as g++-4.8
on lucid) you'll want to match the version as well:
sudo apt-get install gcc-4.8-multilib g++-4.8-multilib
First, you don't declare the type in Ruby, so you don't need the first string
.
To replace a word in string, you do: sentence.gsub(/match/, "replacement")
.
add this to ~/.bashrc:
function mkfile() {
mkdir -p "$1" && touch "$1"/"$2"
}
save and then to make it available without a reboot or logout execute: $ source ~/.bashrc
or you can just do:
$ mkdir folder && touch $_/file.txt
note that $_ = folder
Because when you access a static field, you should do so on the class (or in this case the enum). As in
MyUnits.MILLISECONDS;
Not on an instance as in
m.MILLISECONDS;
Edit To address the question of why: In Java, when you declare something as static
, you are saying that it is a member of the class, not the object (hence why there is only one). Therefore it doesn't make sense to access it on the object, because that particular data member is associated with the class.
If you use Spring you may try http://docs.spring.io/spring/docs/4.0.5.RELEASE/javadoc-api/org/springframework/util/SocketUtils.html#findAvailableTcpPort--
var server = app.listen();
server.setTimeout(500000);
inspired by https://github.com/expressjs/express/issues/3330
or
app.use(function(req, res, next){
res.setTimeout(500000, function(){
// call back function is called when request timed out.
});
next();
});
Even if you're willing to look up what behavior your implementation defines, multi-character constants will still vary with endianness.
Better to use a (POD) struct { char[4] }; ... and then use a UDL like "WAVE"_4cc to easily construct instances of that class
using ssh from java should not be as hard as jsch makes it. you might be better off with sshj.
If you are looking for the solution in Android Studio :
In response to:
Ok, Same error (The Environment variable JAVA_HOME (with a value of C:\Program Files(x86)\Java\jdk1.7.0_51\bin)) does not point to a
valid JVM instalation). What should I do? – IPconfigrammer Apr 20 '14 at 18:41
I can give you a last advice of checking your JDK by opening the jvisualvm.exe or installing a program like BlueJ to check whether
your JDK is corrupt or not. – prakhar19 Apr 20 '14 at 18:45
jvisualvm.exe works otherwise, I'm not sure. Problem Still unsolved – IPconfigrammer
IPconfigrammer --I've been having the same problems. After trying just about everything on this page, I noticed when Android Studio was telling me it wasn't valid it asked me to install a 64-bit JDK. So, even though my windows is 86-bit, I downloaded the 64-bit JDK and, without changing any environment variables or anything, I've just opened Android Studio for the first time. No more errors. :)
So try the 64-bit instead of the 86-bit.
Here is an update for Swift 3 and an addition to Mani's answer. I would suggest using sender.view
in combination with tagging UIViews (or other elements, depending on what you are trying to track) for a somewhat more "advanced" approach.
let yourTapEvent = UITapGestureRecognizer(target: self, action: #selector(yourController.yourFunction))
yourObject.addGestureRecognizer(yourTapEvent) // adding the gesture to your object
Defining the function in the same testController (that's the name of your View Controller). We are going to use tags here - tags are Int IDs, which you can add to your UIView with yourButton.tag = 1
. If you have a dynamic list of elements like an array you can make a for-loop, which iterates through your array and adds a tag, which increases incrementally
func yourFunction(_ sender: AnyObject) {
let yourTag = sender.view!.tag // this is the tag of your gesture's object
// do whatever you want from here :) e.g. if you have an array of buttons instead of just 1:
for button in buttonsArray {
if(button.tag == yourTag) {
// do something with your button
}
}
}
The reason for all of this is because you cannot pass further arguments for yourFunction when using it in conjunction with #selector.
If you have an even more complex UI structure and you want to get the parent's tag of the item attached to your tap gesture you can use let yourAdvancedTag = sender.view!.superview?.tag
e.g. getting the UIView's tag of a pressed button inside that UIView; can be useful for thumbnail+button lists etc.
In MySQL InnoDB, there are two types of index.
Primary key which is called clustered index. Index key words are stored with real record data in the B+Tree leaf node.
Secondary key which is non clustered index. These index only store primary key's key words along with their own index key words in the B+Tree leaf node. So when searching from secondary index, it will first find its primary key index key words and scan the primary key B+Tree to find the real data records. This will make secondary index slower compared to primary index search. However, if the select
columns are all in the secondary index, then no need to look up primary index B+Tree again. This is called covering index.
Take a look at Linq-to-Excel. It's pretty neat.
var book = new LinqToExcel.ExcelQueryFactory(@"File.xlsx");
var query =
from row in book.Worksheet("Stock Entry")
let item = new
{
Code = row["Code"].Cast<string>(),
Supplier = row["Supplier"].Cast<string>(),
Ref = row["Ref"].Cast<string>(),
}
where item.Supplier == "Walmart"
select item;
It also allows for strongly-typed row access too.
try {
string path = args[0];
FileStream fh = new FileStream(path, FileMode.Open, FileAccess.Read);
int i;
string s = "";
while ((i = fh.ReadByte()) != -1)
s = s + (char)i;
//its for reading number of paragraphs
int count = 0;
for (int j = 0; j < s.Length - 1; j++) {
if (s.Substring(j, 1) == "\n")
count++;
}
Console.WriteLine("The total searches were :" + count);
fh.Close();
} catch(Exception ex) {
Console.WriteLine(ex.Message);
}
It appears that SQL Server 2008 R2 can be downloaded with or without the management tools. I honestly have NO IDEA why someone would not want the management tools. But either way, the options are here:
http://www.microsoft.com/sqlserver/en/us/editions/express.aspx
and the one for 64 bit WITH the management tools (management studio) is here:
http://www.microsoft.com/sqlserver/en/us/editions/express.aspx
From the first link I presented, the 3rd and 4th include the management studio for 32 and 64 bit respectively.
I had this error and found it was due to the presence an 'Import' XML tag inside the .csproj.user file. Once I removed it, Visual Studio could open the project again.
You have no control over GC in java -- the VM decides. I've never run across a case where System.gc()
is needed. Since a System.gc()
call simply SUGGESTS that the VM do a garbage collection and it also does a FULL garbage collection (old and new generations in a multi-generational heap), then it can actually cause MORE cpu cycles to be consumed than necessary.
In some cases, it may make sense to suggest to the VM that it do a full collection NOW as you may know the application will be sitting idle for the next few minutes before heavy lifting occurs. For example, right after the initialization of a lot of temporary object during application startup (i.e., I just cached a TON of info, and I know I won't be getting much activity for a minute or so). Think of an IDE such as eclipse starting up -- it does a lot to initialize, so perhaps immediately after initialization it makes sense to do a full gc at that point.
Just use the call
command! Here is an example:
call msbuild.bat
call unit-tests.bat
call deploy.bat
pod update POD_NAME
will update latest pod but not update Podfile.lock
file.
So, you may update your Podfile with specific version of your pod e.g pod 'POD_NAME', '~> 2.9.0'
and then use command pod install
Later, you can remove the specific version naming from your Podfile and can again use pod install
. This will helps to keep Podfile.lock
updated.
You can also use
model.People = model.People.OrderBy(x => x.Name).ToList();
You can do something like this:
@IBDesignable class MyButton: UIButton
{
override func layoutSubviews() {
super.layoutSubviews()
updateCornerRadius()
}
@IBInspectable var rounded: Bool = false {
didSet {
updateCornerRadius()
}
}
func updateCornerRadius() {
layer.cornerRadius = rounded ? frame.size.height / 2 : 0
}
}
Set class to MyButton
in Identity Inspector
and in IB you will have rounded
property:
This is what iDevelop is trying to say Enabled Property
So you have been infact using enabled
, coz your initial post was enable
..
You may try the following:
Sub disenable()
sheets(1).button1.enabled=false
DoEvents
Application.ScreenUpdating = True
For i = 1 To 10
Application.Wait (Now + TimeValue("0:00:1"))
Next i
sheets(1).button1.enabled = False
End Sub
Atlassian's Stash (Now called BitBucket Server) is getting there to being a good Github Enterprise alternative. I'm a bit of a JIRA whore so I like the integrations you have with that.
you can use as.vector()
. It looks like it is the fastest method according to my little benchmark, as follows:
library(microbenchmark)
x=matrix(runif(1e4),100,100) # generate a 100x100 matrix
microbenchmark(y<-as.vector(x),y<-x[1:length(x)],y<-array(x),y<-c(x),times=1e4)
The first solution uses as.vector()
, the second uses the fact that a matrix is stored as a contiguous array in memory and length(m)
gives the number of elements in a matrix m
. The third instantiates an array
from x
, and the fourth uses the concatenate function c()
. I also tried unmatrix
from gdata
, but it's too slow to be mentioned here.
Here are some of the numerical results I obtained:
> microbenchmark(
y<-as.vector(x),
y<-x[1:length(x)],
y<-array(x),
y<-c(x),
times=1e4)
Unit: microseconds
expr min lq mean median uq max neval
y <- as.vector(x) 8.251 13.1640 29.02656 14.4865 15.7900 69933.707 10000
y <- x[1:length(x)] 59.709 70.8865 97.45981 73.5775 77.0910 75042.933 10000
y <- array(x) 9.940 15.8895 26.24500 17.2330 18.4705 2106.090 10000
y <- c(x) 22.406 33.8815 47.74805 40.7300 45.5955 1622.115 10000
Flattening a matrix is a common operation in Machine Learning, where a matrix can represent the parameters to learn but one uses an optimization algorithm from a generic library which expects a vector of parameters. So it is common to transform the matrix (or matrices) into such a vector. It's the case with the standard R function optim()
.
.zip application/zip, application/octet-stream
Left click on a method and press the F12 key to Go To Definition. Other Actions also available
This question will answer how to encrypt/decrypt: Encrypt and decrypt a string in C#?
You didn't specify a database, but you will want to base-64 encode it, using Convert.toBase64String. For an example you can use: http://www.opinionatedgeek.com/Blog/blogentry=000361/BlogEntry.aspx
You'll then either save it in a varchar or a blob, depending on how long your encrypted message is, but for a password varchar should work.
The examples above will also cover decryption after decoding the base64.
UPDATE:
In actuality you may not need to use base64 encoding, but I found it helpful, in case I wanted to print it, or send it over the web. If the message is long enough it's best to compress it first, then encrypt, as it is harder to use brute-force when the message was already in a binary form, so it would be hard to tell when you successfully broke the encryption.
If you are clearing the cluster so that you can start again, then, in addition to what @rib47 said, I also do the following to ensure my systems are in a state ready for kubeadm init
again:
kubeadm reset -f
rm -rf /etc/cni /etc/kubernetes /var/lib/dockershim /var/lib/etcd /var/lib/kubelet /var/run/kubernetes ~/.kube/*
iptables -F && iptables -X
iptables -t nat -F && iptables -t nat -X
iptables -t raw -F && iptables -t raw -X
iptables -t mangle -F && iptables -t mangle -X
systemctl restart docker
You then need to re-install docker.io
, kubeadm
, kubectl
, and kubelet
to make sure they are at the latest versions for your distribution before you re-initialize the cluster.
EDIT: Discovered that calico adds firewall rules to the raw
table so that needs clearing out as well.
The problem is that the base class foo
has no parameterless constructor. So you must call constructor of the base class with parameters from constructor of the derived class:
public bar(int a, int b) : base(a, b)
{
c = a * b;
}
If you want to do it fast and don't want to lose references and listeners use: .insertAdjacentHTML();
"It does not reparse the element it is being used on and thus it does not corrupt the existing elements inside the element. This, and avoiding the extra step of serialization make it much faster than direct innerHTML manipulation."
Supported on all mainline browsers (IE6+, FF8+,All Others and Mobile): http://caniuse.com/#feat=insertadjacenthtml
Example from https://developer.mozilla.org/en-US/docs/Web/API/Element/insertAdjacentHTML
// <div id="one">one</div>
var d1 = document.getElementById('one');
d1.insertAdjacentHTML('afterend', '<div id="two">two</div>');
// At this point, the new structure is:
// <div id="one">one</div><div id="two">two</div>
Let me introduce easy GUI/idiot proof approach that you can take in these situations.
myRepo_temp
myRepo_original
).myRepo_temp
and myRepo_original
)This is useful for example if you want partially reverse some changes as you can copy stuff from one to another folder.
This does it in text.
<p> The download will begin in <span id="countdowntimer">10 </span> Seconds</p>_x000D_
_x000D_
<script type="text/javascript">_x000D_
var timeleft = 10;_x000D_
var downloadTimer = setInterval(function(){_x000D_
timeleft--;_x000D_
document.getElementById("countdowntimer").textContent = timeleft;_x000D_
if(timeleft <= 0)_x000D_
clearInterval(downloadTimer);_x000D_
},1000);_x000D_
</script>
_x000D_
=SUMPRODUCT((A1:A5="FRANCE")*B1:D5)
It is because of virtual enviornment configuration. You need to work on your virtual enviornmnet of Python. You should try on your command promt with,
workon virtual_enviornment_name
Use ValueAnimator:
ValueAnimator expandAnimation = ValueAnimator.ofInt(mainView.getHeight(), 400);
expandAnimation.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(final ValueAnimator animation) {
int height = (Integer) animation.getAnimatedValue();
RelativeLayout.LayoutParams lp = (LayoutParams) mainView.getLayoutParams();
lp.height = height;
}
});
expandAnimation.setDuration(500);
expandAnimation.start();
If you start a 64 bit virtual machine on a 32 bit host machine you will get this error.
Try this in pure bash:
FRED="/some/random/file.csv:some string"
a=${FRED%:*}
echo $a
Here is some documentation that helps.
If you want to call something like this NSString.newLine;
from objective c, and you want it to be static constant, you can create something like this in swift:
public extension NSString {
@objc public static let newLine = "\n"
}
And you have nice readable constant definition, and available from within a type of your choice while stile bounded to context of type.
@throw([NSException exceptionWith…])
Xcode recognizes @throw
statements as function exit points, like return
statements. Using the @throw
syntax avoids erroneous "Control may reach end of non-void function" warnings that you may get from [NSException raise:…]
.
Also, @throw
can be used to throw objects that are not of class NSException.
This will find all .c or .cpp files on linux
$ find . -name "*.c" -o -name "*.cpp"
You don't need the escaped parenthesis unless you are doing some additional mods. Here from the man page they are saying if the pattern matches, print it. Perhaps they are trying to control printing. In this case the -print acts as a conditional and becomes an "AND'd" conditional. It will prevent any .c files from being printed.
$ find . -name "*.c" -o -name "*.cpp" -print
But if you do like the original answer you can control the printing. This will find all .c files as well.
$ find . \( -name "*.c" -o -name "*.cpp" \) -print
One last example for all c/c++ source files
$ find . \( -name "*.c" -o -name "*.cpp" -o -name "*.h" -o -name "*.hpp" \) -print
I am sharing this as the fowling two commands did not do the job on my mac:
sudo kill $(sudo lsof -t -i:4200)
sudo kill `sudo lsof -t -i:4200`
The following one did, but if you were using the integrated terminal in Visual Code, try to use your machine terminal and add the fowling command:
lsof -t -i tcp:4200 | xargs kill -9
read-host -assecurestring | convertfrom-securestring | out-file C:\securestring.txt
$pass = cat C:\securestring.txt | convertto-securestring
$mycred = new-object -typename System.Management.Automation.PSCredential -argumentlist "test",$pass
$mycred.GetNetworkCredential().Password
Be very careful with storing passwords this way... it's not as secure as ...
From Java 9, you can use the stream provided by Matcher.results()
long matches = matcher.results().count();
For more information, the following page describes why you never need to use new Array()
You never need to use
new Object()
in JavaScript. Use the object literal{}
instead. Similarly, don’t usenew Array()
, use the array literal[]
instead. Arrays in JavaScript work nothing like the arrays in Java, and use of the Java-like syntax will confuse you.Do not use
new Number
,new String
, ornew Boolean
. These forms produce unnecessary object wrappers. Just use simple literals instead.
Also check out the comments - the new Array(length)
form does not serve any useful purpose (at least in today's implementations of JavaScript).
sed -i 's/[[:blank:]]\{1,\}$//' YourFile
[:blank:] is for space, tab mainly and {1,} to exclude 'no space at the end' of the substitution process (no big significant impact if line are short and file are small)
Using ' and " at the same time works great for me (Windows 10, python 3)
import os
os.system('"some cmd command here"')
for example to open my web browser I can use this:
os.system('"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"')
(Edit) for an easier way to open your browser I can use this:
import webbrowser
webbrowser.open('website or leave it alone if you only want to open the
browser')
Or
help(list.append)
if you're generally poking around.
IntelliJ has code analysis tools for detecting code which is unused. You should try making as many fields/methods/classes as non-public as possible and that will show up more unused methods/fields/classes
I would also try to locate duplicate code as a way of reducing code volume.
My last suggestion is try to find open source code which if used would make your code simpler.
I would do something like this:
boolean foundQuote = false;
if(charAtIndex(currentStringIndex) == '"')
{
foundQuote = true;
}
if(foundQuote == true)
{
//do nothing
}
else
{
string[] split = currentString.split(',');
}
What works for me was right-click on the .ps1 file and then properties. Click the "UNBLOCK" button. Works great fir me after spending hours trying to change the policies.
The one and probably not so good way of achieving your goal would using global variables.
You could achieve that by adding global $myArr;
to the beginning of your function.
However note that using global variables is in most cases a bad idea and probably avoidable.
The much better way would be passing your array as an argument to your function:
function someFuntion($arr){
$myVal = //some processing here to determine value of $myVal
$arr[] = $myVal;
return $arr;
}
$myArr = someFunction($myArr);
Tims answer seems to me as misleading. Especially when urllib2 does not return expected code. For example this Error will be fatal (believe or not - it is not uncommon one when downloading urls):
AttributeError: 'URLError' object has no attribute 'code'
Fast, but maybe not the best solution would be code using nested try/except block:
import urllib2
try:
urllib2.urlopen("some url")
except urllib2.HTTPError, err:
try:
if err.code == 404:
# Handle the error
else:
raise
except:
...
More information to the topic of nested try/except blocks Are nested try/except blocks in python a good programming practice?
This should fulfill your requirements.
ABC:\s*(\(\D+\)\s*.*?)\\n
Here it is with some tests http://www.regexplanet.com/cookbook/ahJzfnJlZ2V4cGxhbmV0LWhyZHNyDgsSBlJlY2lwZRiEjiUM/index.html
Futher reading on regular expressions: http://www.regular-expressions.info/characters.html
this will work as well
require_once(realpath($_SERVER["DOCUMENT_ROOT"]) .'/mysite/php/includes/dbconn.inc');
I ended up doing something like this for AngularJS in case someone stumbles across this question:
const imageElem = angular.element('#awardImg');
if (imageElem[0].files[0])
vm.award.imageElem = imageElem;
vm.award.image = imageElem[0].files[0];
And then:
if (vm.award.imageElem)
$('#awardImg').replaceWith(vm.award.imageElem);
delete vm.award.imageElem;
I noticed something else about your coding.... look
INSERT INTO reports_services (id,title,description,cost) VALUES (0, 'test title', 'test decription ', '3.80')
in your "CREATE TABLE" code you have the id set to "AUTO_INCREMENT" which means it's automatically generating a result for that field.... but in your above code you include it as one of the insertions and in the "VALUES" you have a 0 there... idk if that's your way of telling us you left it blank because it's set to AUTO_INC. or if that's the actual code you have... if it's the code you have not only should you not be trying to send data to a field set to generate it automatically, but the RIGHT WAY to do it WRONG would be
'0',
you put
0,
lol....so that might be causing some of the problem... I also just noticed in the code after "test description" you have a space before the '.... that might be throwing something off too.... idk.. I hope this helps n maybe resolves some other problem you might be pulling your hair out about now.... speaking of which.... I need to figure out my problem before I tear all my hair out..... good luck.. :)
UPDATE.....
I almost forgot... if you have the 0 there to show that it's blank... you could be entering "test title" as the id and "test description" as the title then "3.whatever cents" for the description leaving "cost" empty...... which could be why it maxed out because if I'm not mistaking you have it set to NOT NULL.... and you left it null... so it forced something... maybe.... lol
If you are working with form validation. Then in this case form send string. I used following code to check either form input is a decimal number or not. I hope this will work for you too.
function is_decimal($input = '') {
$alphabets = str_split($input);
$find = array('0','1','2','3','4','5','6','7','8','9','.'); // Please note: All intiger numbers are decimal. If you want to check numbers without point "." then you can remove '.' from array.
foreach ($alphabets as $key => $alphabet) {
if (!in_array($alphabet, $find)) {
return false;
}
}
// Check if user has enter "." point more then once.
if (substr_count($input, ".") > 1) {
return false;
}
return true;
}
if you have two divs, you can use this to align the divs next to each other in the same row:
#keyword {_x000D_
float:left;_x000D_
margin-left:250px;_x000D_
position:absolute;_x000D_
}_x000D_
_x000D_
#bar {_x000D_
text-align:center;_x000D_
}
_x000D_
<div id="keyword">_x000D_
Keywords:_x000D_
</div>_x000D_
<div id="bar">_x000D_
<input type = textbox name ="keywords" value="" onSubmit="search()" maxlength=40>_x000D_
<input type = button name="go" Value="Go ahead and find" onClick="search()">_x000D_
</div>
_x000D_
Try with Kivy! kivy.org It's quite easy, multi platform and a really good documentation
awk -F'|' '{print NF; exit}' stores.dat
Just quit right after the first line.
Use YouTube Android Player API.
activity_main.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.andreaskonstantakos.vfy.MainActivity">
<com.google.android.youtube.player.YouTubePlayerView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="visible"
android:layout_centerHorizontal="true"
android:id="@+id/youtube_player"
android:layout_alignParentTop="true" />
<Button
android:text="Button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="195dp"
android:visibility="visible"
android:id="@+id/button" />
</RelativeLayout>
MainActivity.java:
package com.example.andreaskonstantakos.vfy;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import com.google.android.youtube.player.YouTubeBaseActivity;
import com.google.android.youtube.player.YouTubeInitializationResult;
import com.google.android.youtube.player.YouTubePlayer;
import com.google.android.youtube.player.YouTubePlayerView;
public class MainActivity extends YouTubeBaseActivity {
YouTubePlayerView youTubePlayerView;
Button button;
YouTubePlayer.OnInitializedListener onInitializedListener;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
youTubePlayerView = (YouTubePlayerView) findViewById(R.id.youtube_player);
button = (Button) findViewById(R.id.button);
onInitializedListener = new YouTubePlayer.OnInitializedListener(){
@Override
public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer youTubePlayer, boolean b) {
youTubePlayer.loadVideo("Hce74cEAAaE");
youTubePlayer.play();
}
@Override
public void onInitializationFailure(YouTubePlayer.Provider provider, YouTubeInitializationResult youTubeInitializationResult) {
}
};
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
youTubePlayerView.initialize(PlayerConfig.API_KEY,onInitializedListener);
}
});
}
}
and the PlayerConfig.java class:
package com.example.andreaskonstantakos.vfy;
/**
* Created by Andreas Konstantakos on 13/4/2017.
*/
public class PlayerConfig {
PlayerConfig(){}
public static final String API_KEY =
"xxxxx";
}
Replace the "Hce74cEAAaE" with your video ID from https://www.youtube.com/watch?v=Hce74cEAAaE. Get your API_KEY from Console.developers.google.com and also replace it on the PlayerConfig.API_KEY. For any further information you can follow the following tutorial step by step: https://www.youtube.com/watch?v=3LiubyYpEUk
Three important steps - How to Task Schedule an excel.xls(m) file
simply:
IN MORE DETAIL...
`
' a .vbs file is just a text file containing visual basic code that has the extension renamed from .txt to .vbs
'Write Excel.xls Sheet's full path here
strPath = "C:\RodsData.xlsm"
'Write the macro name - could try including module name
strMacro = "Update" ' "Sheet1.Macro2"
'Create an Excel instance and set visibility of the instance
Set objApp = CreateObject("Excel.Application")
objApp.Visible = True ' or False
'Open workbook; Run Macro; Save Workbook with changes; Close; Quit Excel
Set wbToRun = objApp.Workbooks.Open(strPath)
objApp.Run strMacro ' wbToRun.Name & "!" & strMacro
wbToRun.Save
wbToRun.Close
objApp.Quit
'Leaves an onscreen message!
MsgBox strPath & " " & strMacro & " macro and .vbs successfully completed!", vbInformation
'
`
set Program/script: = C:\Windows\System32\cscript.exe
set Add arguments (optional): = C:\MyVbsFile.vbs
That should work.
Let me know!
Rod Bowen
XmlTextWriter xmlw = new XmlTextWriter(@"C:\WINDOWS\Temp\exm.xml",System.Text.Encoding.UTF8);
xmlw.WriteStartDocument();
xmlw.WriteStartElement("examtimes");
xmlw.WriteStartElement("Starttime");
xmlw.WriteString(DateTime.Now.AddHours(0).ToString());
xmlw.WriteEndElement();
xmlw.WriteStartElement("Changetime");
xmlw.WriteString(DateTime.Now.AddHours(0).ToString());
xmlw.WriteEndElement();
xmlw.WriteStartElement("Endtime");
xmlw.WriteString(DateTime.Now.AddHours(1).ToString());
xmlw.WriteEndElement();
xmlw.WriteEndElement();
xmlw.WriteEndDocument();
xmlw.Close();
XmlDocument doc = new XmlDocument();
doc.Load(@"C:\WINDOWS\Temp\exm.xml");
XmlNode root = doc.DocumentElement["Starttime"];
root.FirstChild.InnerText = "First";
XmlNode root1 = doc.DocumentElement["Changetime"];
root1.FirstChild.InnerText = "Second";
doc.Save(@"C:\WINDOWS\Temp\exm.xml");
Try this. It's C# code.
You can simply use jQuery UI Dialog
Example:
$(function() {_x000D_
$("#dialog").dialog();_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<html lang="en">_x000D_
_x000D_
<head>_x000D_
<meta charset="utf-8" />_x000D_
<title>jQuery UI Dialog - Default functionality</title>_x000D_
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" />_x000D_
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>_x000D_
<link rel="stylesheet" href="/resources/demos/style.css" />_x000D_
</head>_x000D_
_x000D_
<body>_x000D_
<div id="dialog" title="Basic dialog">_x000D_
<p>This is the default dialog which is useful for displaying information. The dialog window can be moved, resized and closed with the 'x' icon.</p>_x000D_
</div>_x000D_
</body>_x000D_
</html>
_x000D_
edlin or edit
plus there is Windows Services for Unix which comes with many unix tools for windows. http://technet.microsoft.com/en-us/interopmigration/bb380242.aspx
Update 12/7/12 In Windows 2003 R2, Windows 7 & Server 2008, etc. the above is replaced by the Subsystem for UNIX-Based Applications (SUA) as an add-on. But you have to download the utilities: http://www.microsoft.com/en-us/download/details.aspx?id=2391
It's great answer in here. And I want to add 'Why Add a element in Maven3'.
In Maven 3.x Compatibility Notes
Plugin Metaversion Resolution
Internally, Maven 2.x used the special version markers RELEASE and LATEST to support automatic plugin version resolution. These metaversions were also recognized in the element for a declaration. For the sake of reproducible builds, Maven 3.x no longer supports usage of these metaversions in the POM. As a result, users will need to replace occurrences of these metaversions with a concrete version.
And I also find in maven-compiler-plugin - usage
Note: Maven 3.0 will issue warnings if you do not specify the version of a plugin.
I know this is an old thread, but I landed here when my row deletes were blocked by foreign key constraints. In my case, my table design permitted "NULL" values in the constrained column. In the rows to be deleted, I changed the constrained column value to "NULL" (which does not violate the Foreign Key Constraint) and then deleted all the rows.
1- If you don't have bash-completion ... : sudo apt-get install bash-completion
2- Edit your .bashrc file and check (or add) :
if [ -f /etc/bash_completion ]; then
. /etc/bash_completion
fi
3- ... before your prompt line : export PS1='$(__git_ps1) \w\$ '
(__git_ps1 will show your git branch)
4- do source .bashrc
EDIT :
Further readings : Don’t Reinvent the Wheel
You would use the INCLUDE to add one or more columns to the leaf level of a non-clustered index, if by doing so, you can "cover" your queries.
Imagine you need to query for an employee's ID, department ID, and lastname.
SELECT EmployeeID, DepartmentID, LastName
FROM Employee
WHERE DepartmentID = 5
If you happen to have a non-clustered index on (EmployeeID, DepartmentID), once you find the employees for a given department, you now have to do "bookmark lookup" to get the actual full employee record, just to get the lastname column. That can get pretty expensive in terms of performance, if you find a lot of employees.
If you had included that lastname in your index:
CREATE NONCLUSTERED INDEX NC_EmpDep
ON Employee(EmployeeID, DepartmentID)
INCLUDE (Lastname)
then all the information you need is available in the leaf level of the non-clustered index. Just by seeking in the non-clustered index and finding your employees for a given department, you have all the necessary information, and the bookmark lookup for each employee found in the index is no longer necessary --> you save a lot of time.
Obviously, you cannot include every column in every non-clustered index - but if you do have queries which are missing just one or two columns to be "covered" (and that get used a lot), it can be very helpful to INCLUDE those into a suitable non-clustered index.
Even using the sqlite3.Row class-- you still can't use string formatting in the form of:
print "%(id)i - %(name)s: %(value)s" % row
In order to get past this, I use a helper function that takes the row and converts to a dictionary. I only use this when the dictionary object is preferable to the Row object (e.g. for things like string formatting where the Row object doesn't natively support the dictionary API as well). But use the Row object all other times.
def dict_from_row(row):
return dict(zip(row.keys(), row))
I got the same error
Could not connect to the Magento WebService API: SOAP-ERROR: Parsing WSDL: Couldn't load from 'example.com/api/soap/?wsdl' : failed to load external entity "example.com/api/soap/?wsdl"
and my issue resolved once I update my Magento Root URL to
example.com/index.php/api/soap/?wsdl
Yes, I was missing index.php that causes the error.
This works for me. It should be in your onOptionsItemSelected(MenuItem item)
method item.setIcon(R.drawable.your_icon);
Here is a full example with the date formatted in YYYY-MM-DD
<script type="text/javascript" src="http://code.jquery.com/jquery-2.1.4.min.js"></script>
<script src="//cdn.jsdelivr.net/webshim/1.14.5/polyfiller.js"></script>
<script>
webshims.setOptions('forms-ext', {types: 'date'});
webshims.polyfill('forms forms-ext');
$.webshims.formcfg = {
en: {
dFormat: '-',
dateSigns: '-',
patterns: {
d: "yy-mm-dd"
}
}
};
</script>
<input type="date" />
You can use either Windows authentication, if your server is in the domain, or SQL Server authentication. Sa is a system administrator, the root account for SQL Server authentication. But it is a bad practice to use if for connecting to your clients.
You should create your own accounts, and use them to connect to your SQL Server instance. In each connection you set account login, its password and the default database, you want to connect to.
You can use a rewrite rule that uses ^$ to represent the root and rewrite that to your /store directory, like this:
RewriteEngine On
RewriteRule ^$ /store [L]
One possible answer will be given when you run this snippet.
document.write('<table>')_x000D_
for (var i = 0; i < 250; i++) {_x000D_
document.write('<tr><td>' + i + '</td><td>' + String.fromCharCode(i) + '</td></tr>')_x000D_
}_x000D_
document.write('</table>')
_x000D_
td {_x000D_
border: solid 1px;_x000D_
padding: 1px 12px;_x000D_
text-align: right;_x000D_
}_x000D_
table {_x000D_
border-collapse: collapse;_x000D_
}_x000D_
* {_x000D_
font-family: monospace;_x000D_
font-size: 1.1em;_x000D_
}
_x000D_
You are getting NullPointerException as the "output" is null when the while loop ends. You can collect the output in some buffer and then use it, something like this-
StringBuilder buffer = new StringBuilder();
String output;
System.out.println("Output from Server .... \n");
while ((output = br.readLine()) != null) {
System.out.println(output);
buffer.append(output);
}
output = buffer.toString(); // now you have the output
conn.disconnect();
If you download the jquery easing plugin (check it out),then you just have to add this to your main.js file:
$('a.smooth-scroll').on('click', function(event) {
var $anchor = $(this);
$('html, body').stop().animate({
scrollTop: $($anchor.attr('href')).offset().top + 20
}, 1500, 'easeInOutExpo');
event.preventDefault();
});
and also dont forget to add the smooth-scroll class to your a tags like this:
<li><a href="#about" class="smooth-scroll">About Us</a></li>
Your error looks like you are duplicating an already existing Primary Key in your DB. You should modify your sql code to implement its own primary key by using something like the IDENTITY keyword.
CREATE TABLE [DB] (
[DBId] bigint NOT NULL IDENTITY,
...
CONSTRAINT [DB_PK] PRIMARY KEY ([DB] ASC),
);
I have also faced this issue on my MacOS, I used these simple steps and it worked for me.
Just open the terminal and go to your project folder where you what to start ngrok and then unzip downloaded file.
$ unzip /path/to/ngrok.zip
After doing this you don't need to authenticate ngrok, just run this command:
./ngrok http 80
It should work now.
The "JavaScript" way:
var lang = navigator.language || navigator.userLanguage; //no ?s necessary
Really you should be doing language detection on the server, but if it's absolutely necessary to know/use via JavaScript, it can be gotten.
try with this
$ cat /tmp/topfs.txt
/dev/sda2 xfs 32G 10G 22G 32% /
awk print last column
$ cat /tmp/topfs.txt | awk '{print $NF}'
awk print before last column
$ cat /tmp/topfs.txt | awk '{print $(NF-1)}'
32%
awk - print last two columns
$ cat /tmp/topfs.txt | awk '{print $(NF-1), $NF}'
32% /
Delete the CMakeCache.txt file and try this:
cmake -G %1 -DBUILD_SHARED_LIBS=ON -DBUILD_STATIC_LIBS=ON -DBUILD_TESTS=ON ..
You have to enter all your command-line definitions before including the path.
git log --full-history -- your_file
will show you all commits in your repo's history, including merge commits, that touched your_file
. The last (top) one is the one that deleted the file.
The --full-history
flag here is important. Without it, Git performs "history simplification" when you ask it for the log of a file. The docs are light on details about exactly how this works and I lack the grit and courage required to try to figure it out from the source code, but the git-log docs have this much to say:
Default mode
Simplifies the history to the simplest history explaining the final state of the tree. Simplest because it prunes some side branches if the end result is the same (i.e. merging branches with the same content)
This is obviously concerning when the file whose history we want is deleted, since the simplest history explaining the final state of a deleted file is no history. Is there a risk that git log
without --full-history
will simply claim that the file was never created? Unfortunately, yes. Here's a demonstration:
mark@lunchbox:~/example$ git init
Initialised empty Git repository in /home/mark/example/.git/
mark@lunchbox:~/example$ touch foo && git add foo && git commit -m "Added foo"
[master (root-commit) ddff7a7] Added foo
1 file changed, 0 insertions(+), 0 deletions(-)
create mode 100644 foo
mark@lunchbox:~/example$ git checkout -b newbranch
Switched to a new branch 'newbranch'
mark@lunchbox:~/example$ touch bar && git add bar && git commit -m "Added bar"
[newbranch 7f9299a] Added bar
1 file changed, 0 insertions(+), 0 deletions(-)
create mode 100644 bar
mark@lunchbox:~/example$ git checkout master
Switched to branch 'master'
mark@lunchbox:~/example$ git rm foo && git commit -m "Deleted foo"
rm 'foo'
[master 7740344] Deleted foo
1 file changed, 0 insertions(+), 0 deletions(-)
delete mode 100644 foo
mark@lunchbox:~/example$ git checkout newbranch
Switched to branch 'newbranch'
mark@lunchbox:~/example$ git rm bar && git commit -m "Deleted bar"
rm 'bar'
[newbranch 873ed35] Deleted bar
1 file changed, 0 insertions(+), 0 deletions(-)
delete mode 100644 bar
mark@lunchbox:~/example$ git checkout master
Switched to branch 'master'
mark@lunchbox:~/example$ git merge newbranch
Already up-to-date!
Merge made by the 'recursive' strategy.
mark@lunchbox:~/example$ git log -- foo
commit 77403443a13a93073289f95a782307b1ebc21162
Author: Mark Amery
Date: Tue Jan 12 22:50:50 2016 +0000
Deleted foo
commit ddff7a78068aefb7a4d19c82e718099cf57be694
Author: Mark Amery
Date: Tue Jan 12 22:50:19 2016 +0000
Added foo
mark@lunchbox:~/example$ git log -- bar
mark@lunchbox:~/example$ git log --full-history -- foo
commit 2463e56a21e8ee529a59b63f2c6fcc9914a2b37c
Merge: 7740344 873ed35
Author: Mark Amery
Date: Tue Jan 12 22:51:36 2016 +0000
Merge branch 'newbranch'
commit 77403443a13a93073289f95a782307b1ebc21162
Author: Mark Amery
Date: Tue Jan 12 22:50:50 2016 +0000
Deleted foo
commit ddff7a78068aefb7a4d19c82e718099cf57be694
Author: Mark Amery
Date: Tue Jan 12 22:50:19 2016 +0000
Added foo
mark@lunchbox:~/example$ git log --full-history -- bar
commit 873ed352c5e0f296b26d1582b3b0b2d99e40d37c
Author: Mark Amery
Date: Tue Jan 12 22:51:29 2016 +0000
Deleted bar
commit 7f9299a80cc9114bf9f415e1e9a849f5d02f94ec
Author: Mark Amery
Date: Tue Jan 12 22:50:38 2016 +0000
Added bar
Notice how git log -- bar
in the terminal dump above resulted in literally no output; Git is "simplifying" history down into a fiction where bar
never existed. git log --full-history -- bar
, on the other hand, gives us the commit that created bar
and the commit that deleted it.
To be clear: this issue isn't merely theoretical. I only looked into the docs and discovered the --full-history
flag because git log -- some_file
was failing for me in a real repository where I was trying to track a deleted file down. History simplification might sometimes be helpful when you're trying to understand how a currently-existing file came to be in its current state, but when trying to track down a file deletion it's more likely to screw you over by hiding the commit you care about. Always use the --full-history
flag for this use case.
OLD: Create a global instance of _MyHomePageState. Use this instance in _SubState as _myHomePageState.setState
NEW: No need to create global instance. Instead just pass the parent instance to the child widget
CODE UPDATED AS PER FLUTTER 0.8.2:
import 'package:flutter/material.dart';
void main() => runApp(new MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return new MaterialApp(
title: 'Flutter Demo',
theme: new ThemeData(
primarySwatch: Colors.blue,
),
home: new MyHomePage(),
);
}
}
EdgeInsets globalMargin =
const EdgeInsets.symmetric(horizontal: 20.0, vertical: 20.0);
TextStyle textStyle = const TextStyle(
fontSize: 100.0,
color: Colors.black,
);
class MyHomePage extends StatefulWidget {
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int number = 0;
@override
Widget build(BuildContext context) {
return new Scaffold(
appBar: new AppBar(
title: new Text('SO Help'),
),
body: new Column(
children: <Widget>[
new Text(
number.toString(),
style: textStyle,
),
new GridView.count(
crossAxisCount: 2,
shrinkWrap: true,
scrollDirection: Axis.vertical,
children: <Widget>[
new InkResponse(
child: new Container(
margin: globalMargin,
color: Colors.green,
child: new Center(
child: new Text(
"+",
style: textStyle,
),
)),
onTap: () {
setState(() {
number = number + 1;
});
},
),
new Sub(this),
],
),
],
),
floatingActionButton: new FloatingActionButton(
onPressed: () {
setState(() {});
},
child: new Icon(Icons.update),
),
);
}
}
class Sub extends StatelessWidget {
_MyHomePageState parent;
Sub(this.parent);
@override
Widget build(BuildContext context) {
return new InkResponse(
child: new Container(
margin: globalMargin,
color: Colors.red,
child: new Center(
child: new Text(
"-",
style: textStyle,
),
)),
onTap: () {
this.parent.setState(() {
this.parent.number --;
});
},
);
}
}
Just let me know if it works.
You need to set the inflated view "Clickable" and "able to listen to click events" in your adapter class getView() method.
convertView = mInflater.inflate(R.layout.list_item_text, null);
convertView.setClickable(true);
convertView.setOnClickListener(myClickListener);
and declare the click listener in your ListActivity as follows,
public OnClickListener myClickListener = new OnClickListener() {
public void onClick(View v) {
//code to be written to handle the click event
}
};
This holds true only when you are customizing the Adapter by extending BaseAdapter.
Refer the ANDROID_SDK/samples/ApiDemos/src/com/example/android/apis/view/List14.java for more details
1 ) Only the copy of reference is sent as a value to the formal parameter. When the formal parameter variable is assigned other value ,the formal parameter's reference changes but the actual parameter's reference remain the same incase of this integer object.
public class UnderstandingObjects {
public static void main(String[] args) {
Integer actualParam = new Integer(10);
changeValue(actualParam);
System.out.println("Output " + actualParam); // o/p =10
IntObj obj = new IntObj();
obj.setVal(20);
changeValue(obj);
System.out.println(obj.a); // o/p =200
}
private static void changeValue(Integer formalParam) {
formalParam = 100;
// Only the copy of reference is set to the formal parameter
// this is something like => Integer formalParam =new Integer(100);
// Here we are changing the reference of formalParam itself not just the
// reference value
}
private static void changeValue(IntObj obj) {
obj.setVal(200);
/*
* obj = new IntObj(); obj.setVal(200);
*/
// Here we are not changing the reference of obj. we are just changing the
// reference obj's value
// we are not doing obj = new IntObj() ; obj.setValue(200); which has happend
// with the Integer
}
}
class IntObj { Integer a;
public void setVal(int a) {
this.a = a;
}
}
Complementing Aillyn's answer, you could use a function like the one below to mimic the behavior of file_get_contents:
function get_content($URL){
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_URL, $URL);
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
echo get_content('http://example.com');
This will help you...
DataTable dt = new DataTable();
dt.DefaultView.Sort = "Column_name desc";
dt = dt.DefaultView.ToTable();
/**
* Redirect with POST data.
*
* @param string $url URL.
* @param array $post_data POST data. Example: ['foo' => 'var', 'id' => 123]
* @param array $headers Optional. Extra headers to send.
*/
public function redirect_post($url, array $data, array $headers = null) {
$params = [
'http' => [
'method' => 'POST',
'content' => http_build_query($data)
]
];
if (!is_null($headers)) {
$params['http']['header'] = '';
foreach ($headers as $k => $v) {
$params['http']['header'] .= "$k: $v\n";
}
}
$ctx = stream_context_create($params);
$fp = @fopen($url, 'rb', false, $ctx);
if ($fp) {
echo @stream_get_contents($fp);
die();
} else {
// Error
throw new Exception("Error loading '$url', $php_errormsg");
}
}
Give the name to both of the buttons and Get the check the value from form.
<div>
<input name="submitButton" type="submit" value="Register" />
</div>
<div>
<input name="cancelButton" type="submit" value="Cancel" />
</div>
On controller side :
public ActionResult Save(FormCollection form)
{
if (this.httpContext.Request.Form["cancelButton"] !=null)
{
// return to the action;
}
else if(this.httpContext.Request.Form["submitButton"] !=null)
{
// save the oprtation and retrun to the action;
}
}
Just make rdg2.nPhoneNumber varchar everywhere instead of int !
You can do this pretty easily:
@app.route("/")
def home():
resp = flask.Response("Foo bar baz")
resp.headers['Access-Control-Allow-Origin'] = '*'
return resp
Look at flask.Response and flask.make_response()
But something tells me you have another problem, because the after_request
should have handled it correctly too.
EDIT
I just noticed you are already using make_response
which is one of the ways to do it. Like I said before, after_request
should have worked as well. Try hitting the endpoint via curl and see what the headers are:
curl -i http://127.0.0.1:5000/your/endpoint
You should see
> curl -i 'http://127.0.0.1:5000/'
HTTP/1.0 200 OK
Content-Type: text/html; charset=utf-8
Content-Length: 11
Access-Control-Allow-Origin: *
Server: Werkzeug/0.8.3 Python/2.7.5
Date: Tue, 16 Sep 2014 03:47:13 GMT
Noting the Access-Control-Allow-Origin header.
EDIT 2
As I suspected, you are getting a 500 so you are not setting the header like you thought. Try adding app.debug = True
before you start the app and try again. You should get some output showing you the root cause of the problem.
For example:
@app.route("/")
def home():
resp = flask.Response("Foo bar baz")
user.weapon = boomerang
resp.headers['Access-Control-Allow-Origin'] = '*'
return resp
Gives a nicely formatted html error page, with this at the bottom (helpful for curl command)
Traceback (most recent call last):
...
File "/private/tmp/min.py", line 8, in home
user.weapon = boomerang
NameError: global name 'boomerang' is not defined
you need to use getResources() method, try to use following code
View someView = findViewById(R.id.screen);
View root = someView.getRootView();
root.setBackgroundColor(getResources().getColor(color.white));
Edit::
getResources.getColor() is deprecated so, use like below
root.setBackgroundColor(ContextCompat.getColor(this, R.color.white));
Maven Eclipse plugin installation step by step:
Open Eclipse IDE Click Help -> Install New Software Click Add button at top right corner At pop up: fill up Name as you want and Location as http://download.eclipse.org/technology/m2e/milestones/1.0 Now click OK And follow the instruction
You can take the SelectedItem
and cast it back to your class
and access its properties
.
MessageBox.Show(((ComboboxItem)ComboBox_Countries_In_Silvers.SelectedItem).Value);
Edit You can try using DataTextField and DataValueField, I used it with DataSource.
ComboBox_Servers.DataTextField = "Text";
ComboBox_Servers.DataValueField = "Value";
For me, it worked after
brew doctor
Change permission commands resulted in another error
chown: /usr/local: Operation not permitted
Test2 test = new Test2();
...
frame.add(test, BorderLayout.CENTER);
Are you sure of this? test
is NOT a component!
To do what you're trying to do you should let Test2
extend JPanel
!
SQL Server 2012 has a wonderful and long-awaited new DATEFROMPARTS function (which will raise an error if the date is invalid - my main objection to a DATEADD-based solution to this problem):
http://msdn.microsoft.com/en-us/library/hh213228.aspx
DATEFROMPARTS(ycolumn, mcolumn, dcolumn)
or
DATEFROMPARTS(@y, @m, @d)
I was able to get creation time on posix by running the system's stat command and parsing the output.
commands.getoutput('stat FILENAME').split('\"')[7]
Running stat outside of python from Terminal (OS X) returned:
805306374 3382786932 -rwx------ 1 km staff 0 1098083 "Aug 29 12:02:05 2013" "Aug 29 12:02:05 2013" "Aug 29 12:02:20 2013" "Aug 27 12:35:28 2013" 61440 2150 0 testfile.txt
... where the fourth datetime is the file creation (rather than ctime change time as other comments noted).
In server applications the stacktrace blows up your stdout/stderr file. It may become larger and larger and is filled with useless data because usually you have no context and no timestamp and so on.
e.g. catalina.out when using tomcat as container
ID % 2
is checking what the remainder is if you divide ID by 2. If you divide an even number by 2 it will always have a remainder of 0. Any other number (odd) will result in a non-zero value. Which is what is checking for.
If you want to attach a file on Linux
echo 'mail content' | mailx -s 'email subject' -a attachment.txt [email protected]
A binary search tree uses the definition: that for every node,the node to the left of it has a less value(key) and the node to the right of it has a greater value(key).
Where as the heap,being an implementation of a binary tree uses the following definition:
If A and B are nodes, where B is the child node of A,then the value(key) of A must be larger than or equal to the value(key) of B.That is, key(A) = key(B).
http://wiki.answers.com/Q/Difference_between_binary_search_tree_and_heap_tree
I ran in the same question today for my exam and I got it right. smile ... :)
Bind-address XXX.XX.XX.XXX in /etc/my.cnf
comment line:
or
after edit hit service mysqld restart
login into mysql and hit this query:
GRANT ALL PRIVILEGES ON dbname.* TO 'username'@'%' IDENTIFIED BY 'password';
FLUSH PRIVILEGES;
quit;
add firewall rule:
iptables -I INPUT -i eth0 -p tcp --destination-port 3306 -j ACCEPT
You could also use:
import time
start = time.clock()
do_something()
end = time.clock()
print "%.2gs" % (end-start)
Or you could use the python profilers.
You can also disabled TextBoxFor
@Html.TextBoxFor(x=>x.day, null, new { @class = "form-control success" ,@disabled="disabled" })
It will open like this:
4, Copy and paste that code in your style.css and simply start using that font like this:
<Typography
variant="h1"
gutterBottom
style={{ fontFamily: "Spicy Rice", color: "pink" }}
>
React Rock
</Typography>
Result:
I tested this one and it works
// Map from firestore
// Using flutterfire package hence the returned data()
Map<String, dynamic> data = documentSnapshot.data();
DateTime _timestamp = data['timestamp'].toDate();
Test details can be found here: https://www.youtube.com/watch?v=W_X8J7uBPNw&feature=youtu.be
You can pass the event as argument to the function and then prevent the default behaviour.
var OnSubmitTest = React.createClass({
render: function() {
doSomething = function(event){
event.preventDefault();
alert('it works!');
}
return <form onSubmit={this.doSomething}>
<button>Click me</button>
</form>;
}
});
Serialization provides default functionality to store and later recreate the object. It uses verbose format to define the whole graph of objects to be stored e.g. suppose you have a linkedList and you code like below, then the default serialization will discover all the objects which are linked and will serialize. In default serialization the object is constructed entirely from its stored bits, with no constructor calls.
ObjectOutputStream oos = new ObjectOutputStream(
new FileOutputStream("/Users/Desktop/files/temp.txt"));
oos.writeObject(linkedListHead); //writing head of linked list
oos.close();
But if you want restricted serialization or don't want some portion of your object to be serialized then use Externalizable. The Externalizable interface extends the Serializable interface and adds two methods, writeExternal() and readExternal(). These are automatically called while serialization or deserialization. While working with Externalizable we should remember that the default constructer should be public else the code will throw exception. Please follow the below code:
public class MyExternalizable implements Externalizable
{
private String userName;
private String passWord;
private Integer roll;
public MyExternalizable()
{
}
public MyExternalizable(String userName, String passWord, Integer roll)
{
this.userName = userName;
this.passWord = passWord;
this.roll = roll;
}
@Override
public void writeExternal(ObjectOutput oo) throws IOException
{
oo.writeObject(userName);
oo.writeObject(roll);
}
@Override
public void readExternal(ObjectInput oi) throws IOException, ClassNotFoundException
{
userName = (String)oi.readObject();
roll = (Integer)oi.readObject();
}
public String toString()
{
StringBuilder b = new StringBuilder();
b.append("userName: ");
b.append(userName);
b.append(" passWord: ");
b.append(passWord);
b.append(" roll: ");
b.append(roll);
return b.toString();
}
public static void main(String[] args)
{
try
{
MyExternalizable m = new MyExternalizable("nikki", "student001", 20);
System.out.println(m.toString());
ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("/Users/Desktop/files/temp1.txt"));
oos.writeObject(m);
oos.close();
System.out.println("***********************************************************************");
ObjectInputStream ois = new ObjectInputStream(new FileInputStream("/Users/Desktop/files/temp1.txt"));
MyExternalizable mm = (MyExternalizable)ois.readObject();
mm.toString();
System.out.println(mm.toString());
}
catch (ClassNotFoundException ex)
{
Logger.getLogger(MyExternalizable.class.getName()).log(Level.SEVERE, null, ex);
}
catch(IOException ex)
{
Logger.getLogger(MyExternalizable.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
Here if you comment the default constructer then the code will throw below exception:
java.io.InvalidClassException: javaserialization.MyExternalizable;
javaserialization.MyExternalizable; no valid constructor.
We can observe that as password is sensitive information, so i am not serializing it in writeExternal(ObjectOutput oo) method and not setting the value of same in readExternal(ObjectInput oi). That's the flexibility that is provided by Externalizable.
The output of the above code is as per below:
userName: nikki passWord: student001 roll: 20
***********************************************************************
userName: nikki passWord: null roll: 20
We can observe as we are not setting the value of passWord so it's null.
The same can also be achieved by declaring the password field as transient.
private transient String passWord;
Hope it helps. I apologize if i made any mistakes. Thanks.
For those who are using postgresql db and facing error
StandardError: An error has occurred, this and all later migrations canceled:
=== Dangerous operation detected #strong_migrations ===
Adding an index non-concurrently blocks writes
please refer this article
example:
class AddAncestryToWasteCodes < ActiveRecord::Migration[6.0]
disable_ddl_transaction!
def change
add_column :waste_codes, :ancestry, :string
add_index :waste_codes, :ancestry, algorithm: :concurrently
end
end
You may try Gentle Anchors a nice javascript plugin.
Example:
function SomeFunction() {
// your code
// Pass an id attribute to scroll to. The # is required
Gentle_Anchors.Setup('#destination');
// maybe some more code
}
Compatibility Tested on:
You shouldn't use LIs in email. They are unpredictable across email clients. Instead you have to code each bullet point like this:
<table width="100%" cellspacing="0" border="0" cellpadding="0">
<tr>
<td align="left" valign="top" width="10" style="font-family:Arial, Helvetica, Sans-Serif; font-size:12px;">•</td>
<td align="left" valign="top" style="font-family:Arial, Helvetica, Sans-Serif; font-size:12px;">This is the first bullet point</td>
</tr>
<tr>
<td align="left" valign="top" width="10" style="font-family:Arial, Helvetica, Sans-Serif; font-size:12px;">•</td>
<td align="left" valign="top" style="font-family:Arial, Helvetica, Sans-Serif; font-size:12px;">This is the second bullet point</td>
</tr>
</table>
This will ensure that your bullets work in every email client.
Just one line and it solved my issue.
sudo dpkg-reconfigure mysql-server-5.5
This is usually caused by your CSV having been saved along with an (unnamed) index (RangeIndex
).
(The fix would actually need to be done when saving the DataFrame, but this isn't always an option.)
read_csv
with index_col=[0]
argumentIMO, the simplest solution would be to read the unnamed column as the index. Specify an index_col=[0]
argument to pd.read_csv
, this reads in the first column as the index. (Note the square brackets).
df = pd.DataFrame('x', index=range(5), columns=list('abc'))
df
a b c
0 x x x
1 x x x
2 x x x
3 x x x
4 x x x
# Save DataFrame to CSV.
df.to_csv('file.csv')
<!- ->
pd.read_csv('file.csv')
Unnamed: 0 a b c
0 0 x x x
1 1 x x x
2 2 x x x
3 3 x x x
4 4 x x x
# Now try this again, with the extra argument.
pd.read_csv('file.csv', index_col=[0])
a b c
0 x x x
1 x x x
2 x x x
3 x x x
4 x x x
Note
You could have avoided this in the first place by usingindex=False
if the output CSV was created in pandas, if your DataFrame does not have an index to begin with:df.to_csv('file.csv', index=False)
But as mentioned above, this isn't always an option.
str.match
If you cannot modify the code to read/write the CSV file, you can just remove the column by filtering with str.match
:
df
Unnamed: 0 a b c
0 0 x x x
1 1 x x x
2 2 x x x
3 3 x x x
4 4 x x x
df.columns
# Index(['Unnamed: 0', 'a', 'b', 'c'], dtype='object')
df.columns.str.match('Unnamed')
# array([ True, False, False, False])
df.loc[:, ~df.columns.str.match('Unnamed')]
a b c
0 x x x
1 x x x
2 x x x
3 x x x
4 x x x
If it is a symmetrical (rectangular) array then Try pushing into a single dimension javascript array; use razor to determine the array structure; and then transform into a 2 dimensional array.
// this just sticks them all in a one dimension array of rows * cols
var myArray = new Array();
@foreach (var d in Model.ResultArray)
{
@:myArray.push("@d");
}
var MyA = new Array();
var rows = @Model.ResultArray.GetLength(0);
var cols = @Model.ResultArray.GetLength(1);
// now convert the single dimension array to 2 dimensions
var NewRow;
var myArrayPointer = 0;
for (rr = 0; rr < rows; rr++)
{
NewRow = new Array();
for ( cc = 0; cc < cols; cc++)
{
NewRow.push(myArray[myArrayPointer]);
myArrayPointer++;
}
MyA.push(NewRow);
}
There is a brilliant blog post from Taiseer Joudeh with a detailed step-by-step description.
The thing you are missing is which encoding scheme is being used. There are different ways to encode binary numbers. Look into signed number representations. For 9 bits, the ranges and the amount of numbers that can be represented will differ depending on the system used.
What HIVE can do which is not possible in PIG?
Partitioning can be done using HIVE but not in PIG, it is a way of bypassing the output.
What PIG can do which is not possible in HIVE?
Positional referencing - Even when you dont have field names, we can reference using the position like $0 - for first field, $1 for second and so on.
And another fundamental difference is, PIG doesn't need a schema to write the values but HIVE does need a schema.
You can connect from any external application to HIVE using JDBC and others but not with PIG.
Note: Both runs on top of HDFS (hadoop distributed file system) and the statements are converted to Map Reduce programs.