Seems the SMTP as internet standard uses only reliable Transport protocol. RFC821 has TCP, NCP, NITS as examples!
What about:
if (urldecode(trim($url)) == trim($url)) { $url_form = 'decoded'; }
else { $url_form = 'encoded'; }
Will not work with double encoding but this is out of scope anyway I suppose?
I ran into this issue as well. My fix was to create a child schema. See below for an example for your models.
---- Person model
const mongoose = require('mongoose');
const SingleFriend = require('./SingleFriend');
const Schema = mongoose.Schema;
const productSchema = new Schema({
friends : [SingleFriend.schema]
});
module.exports = mongoose.model('Person', personSchema);
***Important: SingleFriend.schema -> make sure to use lowercase for schema
--- Child schema
const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const SingleFriendSchema = new Schema({
Name: String
});
module.exports = mongoose.model('SingleFriend', SingleFriendSchema);
class ClassA(object):
def __init__(self):
self.var1 = 1
self.var2 = 2
def method(self):
self.var1 = self.var1 + self.var2
return self.var1
class ClassB(ClassA):
def __init__(self):
ClassA.__init__(self)
object1 = ClassA()
sum = object1.method()
object2 = ClassB()
print sum
Turned out there was some extra code in the AppModel that was messing things up:
in beforeFind
and afterFind
:
App::Import("Session");
$session = new CakeSession();
$sim_id = $session->read("Simulation.id");
I don't know why, but that was what the problem was. Removing those lines fixed the issue I was having.
I did it with transparent *.cur 1px to 1px, but it looks like small dot. :( I think it's the best cross-browser thing that I can do. CSS2.1 has no value 'none' for 'cursor' property - it was added in CSS3. Thats why it's workable not everywhere.
try this
public void setUpTableData() {
DefaultTableModel tableModel = (DefaultTableModel) jTable.getModel();
/**
* additional code.
**/
tableModel.setRowCount(0);
/**/
ArrayList<Contact> list = new ArrayList<Contact>();
if (!con.equals(""))
list = sql.getContactListsByGroup(con);
else
list = sql.getContactLists();
for (int i = 0; i < list.size(); i++) {
String[] data = new String[7];
data[0] = list.get(i).getName();
data[1] = list.get(i).getEmail();
data[2] = list.get(i).getPhone1();
data[3] = list.get(i).getPhone2();
data[4] = list.get(i).getGroup();
data[5] = list.get(i).getId();
tableModel.addRow(data);
}
jTable.setModel(tableModel);
/**
* additional code.
**/
tableModel.fireTableDataChanged();
/**/
}
The answer did not work for me. I dont know how it got so many votes. Though it helped in pointing me in a direction.
This is the answer that worked for me:
foreach (var x in jobj)
{
var key = ((JProperty) (x)).Name;
var jvalue = ((JProperty)(x)).Value ;
}
Assuming that start_date is before end_date,
interval [start_date..end_date] NOT BETWEEN two dates simply means that either it starts before 2009-12-15 or it ends after 2010-01-02.
Then you can simply do
start_date<CAST('2009-12-15' AS DATE) or end_date>CAST('2010-01-02' AS DATE)
Not specifically using -replace
, but you get the same effect parsing the content using -notmatch
and regex.
(get-content 'c:\FileWithEmptyLines.txt') -notmatch '^\s*$' > c:\FileWithNoEmptyLines.txt
A little more elaborate example.
Setup: You have a website at example.com
and you have a web app at example.com/webapp
...
server {
listen 443 ssl;
server_name example.com;
root /usr/share/nginx/html/website_dir;
index index.html index.htm;
try_files $uri $uri/ /index.html;
location /webapp/ {
alias /usr/share/nginx/html/webapp_dir/;
index index.html index.htm;
try_files $uri $uri/ /webapp/index.html;
}
}
...
I've named webapp_dir
and website_dir
on purpose. If you have matching names and folders you can use the root
directive.
This setup works and is tested with Docker.
NB!!! Be careful with the slashes. Put them exactly as in the example.
I am facing the same issue and none of above works, like by updating the MVN also same error, by building is also same, entered details in settings.xml though even same issue.
After that again I tried and did something different which did not did before and it works.
Its simple, I clicked the force update while updating the Mvn project. By right clicking on the pom file, there is option under Maven, "Update Project" and it open up one popup to select update option. PLEASE MAKE SURE FORCE UPDATE IS CHECKED, by default is unchecked. And bingo, that works like charm!
If you have your vim compiled with +menu
, you can follow menus with the :help
of console-menu
. From there, you can navigate to Edit.Color\ Scheme
to get the same list as with in gvim
.
Other method is to use a cool script ScrollColors that previews the colorschemes while you scroll the schemes with j/k
.
I'll sometimes do this:
def draw_menu(options, selected_index):
for i in range(len(options)):
if i == selected_index:
print " [*] %s" % options[i]
else:
print " [ ] %s" % options[i]
Though I tend to avoid this if it means I'll be saying options[i]
more than a couple of times.
I’m pretty sure you don’t add the mime type as a JPEG on file downloads:
header('Content-Type: image/png');
These headers have never failed me:
$quoted = sprintf('"%s"', addcslashes(basename($file), '"\\'));
$size = filesize($file);
header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename=' . $quoted);
header('Content-Transfer-Encoding: binary');
header('Connection: Keep-Alive');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length: ' . $size);
// Used In TypeScript For Angular 4+
const viewArray = [
{id: 1, question: "Do you feel a connection to a higher source and have a sense of comfort knowing that you are part of something greater than yourself?", category: "Spiritual", subs: []},
{id: 2, question: "Do you feel you are free of unhealthy behavior that impacts your overall well-being?", category: "Habits", subs: []},
{id: 3, question: "Do you feel you have healthy and fulfilling relationships?", category: "Relationships", subs: []},
{id: 4, question: "Do you feel you have a sense of purpose and that you have a positive outlook about yourself and life?", category: "Emotional Well-being", subs: []},
{id: 5, question: "Do you feel you have a healthy diet and that you are fueling your body for optimal health? ", category: "Eating Habits ", subs: []},
{id: 6, question: "Do you feel that you get enough rest and that your stress level is healthy?", category: "Relaxation ", subs: []},
{id: 7, question: "Do you feel you get enough physical activity for optimal health?", category: "Exercise ", subs: []},
{id: 8, question: "Do you feel you practice self-care and go to the doctor regularly?", category: "Medical Maintenance", subs: []},
{id: 9, question: "Do you feel satisfied with your income and economic stability?", category: "Financial", subs: []},
{id: 10, question: "Do you feel you do fun things and laugh enough in your life?", category: "Play", subs: []},
{id: 11, question: "Do you feel you have a healthy sense of balance in this area of your life?", category: "Work-life Balance", subs: []},
{id: 12, question: "Do you feel a sense of peace and contentment in your home? ", category: "Home Environment", subs: []},
{id: 13, question: "Do you feel that you are challenged and growing as a person?", category: "Intellectual Wellbeing", subs: []},
{id: 14, question: "Do you feel content with what you see when you look in the mirror?", category: "Self-image", subs: []},
{id: 15, question: "Do you feel engaged at work and a sense of fulfillment with your job?", category: "Work Satisfaction", subs: []}
];
const arrayObj = any;
const objectData = any;
for (let index = 0; index < this.viewArray.length; index++) {
this.arrayObj = this.viewArray[index];
this.arrayObj.filter((x) => {
if (x.id === id) {
this.objectData = x;
}
});
console.log('Json Object Data by ID ==> ', this.objectData);
}
};
@Transactional
uses in service layer which is called by using controller layer (@Controller
) and service layer call to the DAO layer (@Repository
) i.e data base related operation.
You can use
CameraUpdate center = CameraUpdateFactory.newLatLng(new LatLng(location.getLatitude(), location.getLongitude()));
CameraUpdate zoom = CameraUpdateFactory.zoomTo(12);
AF_INET
is an address family that is used to designate the type of addresses that your socket can communicate with (in this case, Internet Protocol v4 addresses). When you create a socket, you have to specify its address family, and then you can only use addresses of that type with the socket. The Linux kernel, for example, supports 29 other address families such as UNIX (AF_UNIX
) sockets and IPX (AF_IPX
), and also communications with IRDA and Bluetooth (AF_IRDA
and AF_BLUETOOTH
, but it is doubtful you'll use these at such a low level).
For the most part, sticking with AF_INET
for socket programming over a network is the safest option. There is also AF_INET6
for Internet Protocol v6 addresses.
Hope this helps,
To improve performance you could have a single predefined sting if you know the max length like:
String template = "####################################";
And then simply perform a substring once you know the length.
This message means the 'emulator-x86' or 'emulator64-x86' program is missing from $SDK/tools/, or cannot be found for some reason.
First of all, are you sure you have a valid download / install of the SDK?
select * from (select * from table order by value desc limit 999999999) v group by v.name
How do I create a new column with Groupby().Sum()?
There are two ways - one straightforward and the other slightly more interesting.
GroupBy.transform()
with 'sum'
@Ed Chum's answer can be simplified, a bit. Call DataFrame.groupby
rather than Series.groupby
. This results in simpler syntax.
# The setup.
df[['Date', 'Data3']]
Date Data3
0 2015-05-08 5
1 2015-05-07 8
2 2015-05-06 6
3 2015-05-05 1
4 2015-05-08 50
5 2015-05-07 100
6 2015-05-06 60
7 2015-05-05 120
df.groupby('Date')['Data3'].transform('sum')
0 55
1 108
2 66
3 121
4 55
5 108
6 66
7 121
Name: Data3, dtype: int64
It's a tad faster,
df2 = pd.concat([df] * 12345)
%timeit df2['Data3'].groupby(df['Date']).transform('sum')
%timeit df2.groupby('Date')['Data3'].transform('sum')
10.4 ms ± 367 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
8.58 ms ± 559 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
GroupBy.sum()
+ Series.map()
I stumbled upon an interesting idiosyncrasy in the API. From what I tell, you can reproduce this on any major version over 0.20 (I tested this on 0.23 and 0.24). It seems like you consistently can shave off a few milliseconds of the time taken by transform
if you instead use a direct function of GroupBy
and broadcast it using map
:
df.Date.map(df.groupby('Date')['Data3'].sum())
0 55
1 108
2 66
3 121
4 55
5 108
6 66
7 121
Name: Date, dtype: int64
Compare with
df.groupby('Date')['Data3'].transform('sum')
0 55
1 108
2 66
3 121
4 55
5 108
6 66
7 121
Name: Data3, dtype: int64
My tests show that map
is a bit faster if you can afford to use the direct GroupBy
function (such as mean
, min
, max
, first
, etc). It is more or less faster for most general situations upto around ~200 thousand records. After that, the performance really depends on the data.
(Left: v0.23, Right: v0.24)
Nice alternative to know, and better if you have smaller frames with smaller numbers of groups. . . but I would recommend transform
as a first choice. Thought this was worth sharing anyway.
Benchmarking code, for reference:
import perfplot
perfplot.show(
setup=lambda n: pd.DataFrame({'A': np.random.choice(n//10, n), 'B': np.ones(n)}),
kernels=[
lambda df: df.groupby('A')['B'].transform('sum'),
lambda df: df.A.map(df.groupby('A')['B'].sum()),
],
labels=['GroupBy.transform', 'GroupBy.sum + map'],
n_range=[2**k for k in range(5, 20)],
xlabel='N',
logy=True,
logx=True
)
You could try to use ng-class
.
Here is my simple example:
http://plnkr.co/edit/wS3QkQ5dvHNdc6Lb8ZSF?p=preview
<div ng-repeat="object in objects">
<span ng-class="{'disabled': object.status}" ng-click="disableIt(object)">
{{object.value}}
</span>
</div>
The status is a custom attribute of object, you could name it whatever you want.
The disabled
in ng-class
is a CSS class name, the object.status
should be true
or false
You could change every object's status in function disableIt
.
In your Controller, you could do this:
$scope.disableIt = function(obj) {
obj.status = !obj.status
}
Just as simple as this:
$("#myElem").show("slow").delay(5000).hide("slow");
Base on this I was able to solve this by changing the constructor of XmlSerializer
I was using instead of changing the classes.
Instead of using something like this (suggested in the other answers):
[XmlInclude(typeof(Derived))]
public class Base {}
public class Derived : Base {}
public void Serialize()
{
TextWriter writer = new StreamWriter(SchedulePath);
XmlSerializer xmlSerializer = new XmlSerializer(typeof(List<Derived>));
xmlSerializer.Serialize(writer, data);
writer.Close();
}
I did this:
public class Base {}
public class Derived : Base {}
public void Serialize()
{
TextWriter writer = new StreamWriter(SchedulePath);
XmlSerializer xmlSerializer = new XmlSerializer(typeof(List<Derived>), new[] { typeof(Derived) });
xmlSerializer.Serialize(writer, data);
writer.Close();
}
Inspired by @Purag's answer, here's another flexbox solution:
/* basic settings */_x000D_
table { display: flex; flex-direction: column; width: 200px; }_x000D_
tr { display: flex; }_x000D_
th:nth-child(1), td:nth-child(1) { flex-basis: 35%; }_x000D_
th:nth-child(2), td:nth-child(2) { flex-basis: 65%; }_x000D_
thead, tbody { overflow-y: scroll; }_x000D_
tbody { height: 100px; }_x000D_
_x000D_
/* color settings*/_x000D_
table, th, td { border: 1px solid black; }_x000D_
tr:nth-child(odd) { background: #EEE; }_x000D_
tr:nth-child(even) { background: #AAA; }_x000D_
thead tr:first-child { background: #333; }_x000D_
th:first-child, td:first-child { background: rgba(200,200,0,0.7); }_x000D_
th:last-child, td:last-child { background: rgba(255,200,0,0.7); }
_x000D_
<table>_x000D_
<thead>_x000D_
<tr>_x000D_
<th>a_x000D_
<th>bbbb_x000D_
<tbody>_x000D_
<tr>_x000D_
<td>fooo vsync dynamic_x000D_
<td>bar_x000D_
<tr>_x000D_
<td>a_x000D_
<td>b_x000D_
<tr>_x000D_
<td>a_x000D_
<td>b_x000D_
<tr>_x000D_
<td>a_x000D_
<td>b_x000D_
<tr>_x000D_
<td>a_x000D_
<td>b_x000D_
<tr>_x000D_
<td>a_x000D_
<td>b_x000D_
<tr>_x000D_
<td>a_x000D_
<td>b_x000D_
</table>
_x000D_
This is a perfect use-case for DISTINCT ON
- a Postgres specific extension of the standard DISTINCT
:
SELECT DISTINCT ON (category)
id -- , category, date -- any other column (expression) from the same row
FROM tbl
ORDER BY category, date DESC;
Careful with descending sort order. If the column can be NULL, you may want to add NULLS LAST
:
DISTINCT ON
is simple and fast. Detailed explanation in this related answer:
For big tables with many rows per category
consider an alternative approach:
Table Creating
create table emp(eno int identity(100001,1),ename varchar(50))
Values inserting
insert into emp(ename)values('narendra'),('ajay'),('anil'),('raju')
Select Table
select * from emp
Output
eno ename
100001 narendra
100002 rama
100003 ajay
100004 anil
100005 raju
This will update all the rows in that columns if safe mode is not enabled.
UPDATE table SET columnB = columnA;
If safe mode is enabled then you will need to use a where clause. I use primary key as greater than 0 basically all will be updated
UPDATE table SET columnB = columnA where table.column>0;
I recommend modify the solution of @Xaver Kapeller with 2 things below to avoid a problem after you cleared the searched text (the filter didn't work anymore) due to the list back of adapter has smaller size than filter list and the IndexOutOfBoundsException happened. So the code need to modify as below
public void addItem(int position, ExampleModel model) {
if(position >= mModel.size()) {
mModel.add(model);
notifyItemInserted(mModel.size()-1);
} else {
mModels.add(position, model);
notifyItemInserted(position);
}
}
And modify also in moveItem functionality
public void moveItem(int fromPosition, int toPosition) {
final ExampleModel model = mModels.remove(fromPosition);
if(toPosition >= mModels.size()) {
mModels.add(model);
notifyItemMoved(fromPosition, mModels.size()-1);
} else {
mModels.add(toPosition, model);
notifyItemMoved(fromPosition, toPosition);
}
}
Hope that It could help you!
I have the same problem with MySQL and I solve by using XAMPP to connect with MySQL and stop the services in windows for MySQL (control panel - Administrative Tools - Services), and in the folder db.js (that responsible for the database ) I make the password empty (here you can see:)
const mysql = require('mysql');
const connection = mysql.createConnection({
host: 'localhost',
user: 'root',
password: ''
});
Use:
git checkout -- <file>
To discard the changes in the working directory.
Use the affix
component included with Bootstrap. Start with a 'navbar-static-top' and this will change it to fixed
when the height of your header (content above the navbar) is reached...
$('#nav').affix({
offset: {
top: $('header').height()
}
});
These data types are synonyms.
You can use WhereNotIn in following way also:
ModelName::whereNotIn('book_price', [100,200])->get(['field_name1','field_name2']);
This will return collection of Record with specific fields
I think there is MID() and maybe LEFT() and RIGHT() in Access.
try
std::fill
and also
std::size siz = vec.size();
//no memory allocating
vec.resize(0);
vec.resize(siz, 0);
Time Zone Handling
I just want to clarify, even though this has been commented so future people don't miss this very important distinction.
DateTime.strptime("1318996912",'%s') # => Wed, 19 Oct 2011 04:01:52 +0000
displays a return value in UTC and requires the seconds to be a String and outputs a UTC Time object, whereas
Time.at(1318996912) # => 2011-10-19 00:01:52 -0400
displays a return value in the LOCAL time zone, normally requires a FixNum argument, but the Time object itself is still in UTC even though the display is not.
So even though I passed the same integer to both methods, I seemingly two different results because of how the class' #to_s
method works. However, as @Eero had to remind me twice of:
Time.at(1318996912) == DateTime.strptime("1318996912",'%s') # => true
An equality comparison between the two return values still returns true. Again, this is because the values are basically the same (although different classes, the #==
method takes care of this for you), but the #to_s
method prints drastically different strings. Although, if we look at the strings, we can see they are indeed the same time, just printed in different time zones.
Method Argument Clarification
The docs also say "If a numeric argument is given, the result is in local time." which makes sense, but was a little confusing to me because they don't give any examples of non-integer arguments in the docs. So, for some non-integer argument examples:
Time.at("1318996912")
TypeError: can't convert String into an exact number
you can't use a String argument, but you can use a Time argument into Time.at
and it will return the result in the time zone of the argument:
Time.at(Time.new(2007,11,1,15,25,0, "+09:00"))
=> 2007-11-01 15:25:00 +0900
Benchmarks
After a discussion with @AdamEberlin on his answer, I decided to publish slightly changed benchmarks to make everything as equal as possible. Also, I never want to have to build these again so this is as good a place as any to save them.
Time.at(int).to_datetime ~ 2.8x faster
09:10:58-watsw018:~$ ruby -v
ruby 2.3.7p456 (2018-03-28 revision 63024) [universal.x86_64-darwin18]
09:11:00-watsw018:~$ irb
irb(main):001:0> require 'benchmark'
=> true
irb(main):002:0> require 'date'
=> true
irb(main):003:0>
irb(main):004:0* format = '%s'
=> "%s"
irb(main):005:0> times = ['1318996912', '1318496913']
=> ["1318996912", "1318496913"]
irb(main):006:0> int_times = times.map(&:to_i)
=> [1318996912, 1318496913]
irb(main):007:0>
irb(main):008:0* datetime_from_strptime = DateTime.strptime(times.first, format)
=> #<DateTime: 2011-10-19T04:01:52+00:00 ((2455854j,14512s,0n),+0s,2299161j)>
irb(main):009:0> datetime_from_time = Time.at(int_times.first).to_datetime
=> #<DateTime: 2011-10-19T00:01:52-04:00 ((2455854j,14512s,0n),-14400s,2299161j)>
irb(main):010:0>
irb(main):011:0* datetime_from_strptime === datetime_from_time
=> true
irb(main):012:0>
irb(main):013:0* Benchmark.measure do
irb(main):014:1* 100_000.times {
irb(main):015:2* times.each do |i|
irb(main):016:3* DateTime.strptime(i, format)
irb(main):017:3> end
irb(main):018:2> }
irb(main):019:1> end
=> #<Benchmark::Tms:0x00007fbdc18f0d28 @label="", @real=0.8680500000045868, @cstime=0.0, @cutime=0.0, @stime=0.009999999999999998, @utime=0.86, @total=0.87>
irb(main):020:0>
irb(main):021:0* Benchmark.measure do
irb(main):022:1* 100_000.times {
irb(main):023:2* int_times.each do |i|
irb(main):024:3* Time.at(i).to_datetime
irb(main):025:3> end
irb(main):026:2> }
irb(main):027:1> end
=> #<Benchmark::Tms:0x00007fbdc3108be0 @label="", @real=0.33059399999910966, @cstime=0.0, @cutime=0.0, @stime=0.0, @utime=0.32000000000000006, @total=0.32000000000000006>
****edited to not be completely and totally incorrect in every way****
****added benchmarks****
In shell, you don't put a $ in front of a variable you're assigning. You only use $IP when you're referring to the variable.
#!/bin/bash
IP=$(curl automation.whatismyip.com/n09230945.asp)
echo "$IP"
sed "s/IP/$IP/" nsupdate.txt | nsupdate
I wrote this JS function dump()
to work like PHP's var_dump()
.
To show the contents of the variable in an alert window: dump(variable)
To show the contents of the variable in the web page: dump(variable, 'body')
To just get a string of the variable: dump(variable, 'none')
/* repeatString() returns a string which has been repeated a set number of times */
function repeatString(str, num) {
out = '';
for (var i = 0; i < num; i++) {
out += str;
}
return out;
}
/*
dump() displays the contents of a variable like var_dump() does in PHP. dump() is
better than typeof, because it can distinguish between array, null and object.
Parameters:
v: The variable
howDisplay: "none", "body", "alert" (default)
recursionLevel: Number of times the function has recursed when entering nested
objects or arrays. Each level of recursion adds extra space to the
output to indicate level. Set to 0 by default.
Return Value:
A string of the variable's contents
Limitations:
Can't pass an undefined variable to dump().
dump() can't distinguish between int and float.
dump() can't tell the original variable type of a member variable of an object.
These limitations can't be fixed because these are *features* of JS. However, dump()
*/
function dump(v, howDisplay, recursionLevel) {
howDisplay = (typeof howDisplay === 'undefined') ? "alert" : howDisplay;
recursionLevel = (typeof recursionLevel !== 'number') ? 0 : recursionLevel;
var vType = typeof v;
var out = vType;
switch (vType) {
case "number":
/* there is absolutely no way in JS to distinguish 2 from 2.0
so 'number' is the best that you can do. The following doesn't work:
var er = /^[0-9]+$/;
if (!isNaN(v) && v % 1 === 0 && er.test(3.0)) {
out = 'int';
}
*/
break;
case "boolean":
out += ": " + v;
break;
case "string":
out += "(" + v.length + '): "' + v + '"';
break;
case "object":
//check if null
if (v === null) {
out = "null";
}
//If using jQuery: if ($.isArray(v))
//If using IE: if (isArray(v))
//this should work for all browsers according to the ECMAScript standard:
else if (Object.prototype.toString.call(v) === '[object Array]') {
out = 'array(' + v.length + '): {\n';
for (var i = 0; i < v.length; i++) {
out += repeatString(' ', recursionLevel) + " [" + i + "]: " +
dump(v[i], "none", recursionLevel + 1) + "\n";
}
out += repeatString(' ', recursionLevel) + "}";
}
else {
//if object
let sContents = "{\n";
let cnt = 0;
for (var member in v) {
//No way to know the original data type of member, since JS
//always converts it to a string and no other way to parse objects.
sContents += repeatString(' ', recursionLevel) + " " + member +
": " + dump(v[member], "none", recursionLevel + 1) + "\n";
cnt++;
}
sContents += repeatString(' ', recursionLevel) + "}";
out += "(" + cnt + "): " + sContents;
}
break;
default:
out = v;
break;
}
if (howDisplay == 'body') {
var pre = document.createElement('pre');
pre.innerHTML = out;
document.body.appendChild(pre);
}
else if (howDisplay == 'alert') {
alert(out);
}
return out;
}
You can use mplayer.
mencoder -nocache -rtsp-stream-over-tcp rtsp://192.168.XXX.XXX/test.sdp -oac copy -ovc copy -o test.avi
The "copy" codec is just a dumb copy of the stream. Mencoder adds a header and stuff you probably want.
In the mplayer source file "stream/stream_rtsp.c" is a prebuffer_size setting of 640k and no option to change the size other then recompile. The result is that writing the stream is always delayed, which can be annoying for things like cameras, but besides this, you get an output file, and can play it back most places without a problem.
SQlite3 has a method named row_factory. This method would allow you to access the values by column name.
https://www.kite.com/python/examples/3884/sqlite3-use-a-row-factory-to-access-values-by-column-name
You may want to add
HttpURLConnection.setFollowRedirects(false);
// note : or
// huc.setInstanceFollowRedirects(false)
if you don't want to follow redirection (3XX)
Instead of doing a "GET", a "HEAD" is all you need.
huc.setRequestMethod("HEAD");
return (huc.getResponseCode() == HttpURLConnection.HTTP_OK);
Everything we code in java goes into a class. Whenever we run a class JVM instantiates an object. JVM can create a number of objects, by definition Static means you have the same set of copy to all objects.
So, if Java would have allowed the top class to be static whenever you run a program it creates an Object and keeps overriding on to the same Memory Location.
If You are just replacing the object every time you run it whats the point of creating it?
So that is the reason Java got rid of the static for top-Level Class.
There might be more concrete reasons but this made much logical sense to me.
I use linux and the answers did not help me.
I had to erase the folder ~/.config/smartgit
to make it work again. This is what the documentation is saying
Default Location of SmartGit's Settings Directory
Windows %APPDATA%\syntevo\SmartGit\ (%APPDATA% is the path defined in the environment variable APPDATA)
Mac OS ~/Library/Preferences/SmartGit/ (the Finder might not show the ~/Libraries directory by default, but you can invoke open ~/Library from a terminal)
Linux/Unix ${XDG_CONFIG_HOME}/smartgit/ (if the environment variable XDG_CONFIG_HOME is not defined, ~/.config is used instead)
Several GUI tools like Squirrel, SQL Workbench/J, AnySQL, ExecuteQuery can export to Excel files.
Most of those tools are listed in the PostgreSQL wiki:
http://wiki.postgresql.org/wiki/Community_Guide_to_PostgreSQL_GUI_Tools
select cast((1*1.00)/3 AS DECIMAL(16,2)) as Result
Here in this sql first convert to float or multiply by 1.00 .Which output will be a float number.Here i consider 2 decimal places. You can choose what you need.
echo "<script>
window.location.href='admin/ahm/panel';
alert('There are no fields to generate a report');
</script>";
Try out this way it works...
First assign the window with the new page where the alert box must be displayed then show the alert box.
git branch -r -vv
will list all branches including remote.
The nearest equivalents would be icode and bcode as used by scalac, view Miguel Garcia's site on the Scalac optimiser for more information, here: http://magarciaepfl.github.io/scala/
You might also consider Java bytecode itself to be your intermediate representation, given that bytecode is the ultimate output of scalac.
Or perhaps the true intermediate is something that the JIT produces before it finally outputs native instructions?
Ultimately though... There's no single place that you can point at an claim "there's the intermediate!". Scalac works in phases that successively change the abstract syntax tree, every single phase produces a new intermediate. The whole thing is like an onion, and it's very hard to try and pick out one layer as somehow being more significant than any other.
Java Server Pages (JSP) is java technology which enables Web developers and designers to rapidly develop and easily maintain, information-rich, dynamic Web pages that leverage existing business systems. JSP technology separates the user interface from content generation, enabling designers to change the overall page layout without altering the underlying dynamic content.
Facelets is the first non JSP page declaration language designed for JSF (Java Server Faces) which provided a simpler and more powerful programming model to JSF developers as compare to JSP. It resolves different issues occurs in JSP for web applications development.
Here is a table that compares the features of scriplets and facelets:
I have Written a small script to download the live youtube video, you may use as single command as well. script it can be invoked simply as,
~/ytdl_lv.sh <URL> <output file name>
e.g.
~/ytdl_lv.sh https://www.youtube.com/watch?v=BLIGxsYLyjc myfile.mp4
script is as simple as below,
#!/bin/bash
# ytdl_lv.sh
# Author Prashant
#
URL=$1
OUTNAME=$2
streamlink --hls-live-restart -o ${OUTNAME} ${URL} best
here the best is the stream quality, it also can be 144p (worst), 240p, 360p, 480p, 720p (best)
Python has nothing built-in to support this. Do you really need to optimize it so much as I don't think that appending will add that much overhead.
However, you can do something like l = [None] * 1000
.
Alternatively, you could use a generator.
I was basically looking for the Reflection answer by @ArthurC
Just to extend his answer a little bit, you can make it even better by having a generic function:
// If you want for a specific Enum
private static string EnumStringValue(GroupTypes e)
{
return EnumStringValue<GroupTypes>(e);
}
// Generic
private static string EnumStringValue<T>(T enumInstance)
{
return Enum.GetName(typeof(T), enumInstance);
}
Then you can just wrap whatever you have
EnumStringValue(GroupTypes.TheGroup) // if you incorporate the top part
or
EnumStringValue<GroupTypes>(GroupTypes.TheGroup) // if you just use the generic
Try the following:
NextViewController *nextView = [self.storyboard instantiateViewControllerWithIdentifier:@"nextView"];
[self presentViewController:nextView animated:YES completion:NULL];
Use $_SESSION
directly to set variables. Like this:
$_SESSION['name'] = 'stack';
Instead of:
$name = 'stack';
session_register("name");
Bootstrap 2.3.x and later supports the dropdown-submenu
..
<ul class="dropdown-menu">
<li><a href="#">Login</a></li>
<li class="dropdown-submenu">
<a tabindex="-1" href="#">More options</a>
<ul class="dropdown-menu">
<li><a tabindex="-1" href="#">Second level</a></li>
<li><a href="#">Second level</a></li>
<li><a href="#">Second level</a></li>
</ul>
</li>
<li><a href="#">Logout</a></li>
</ul>
Compiling Programs on Windows 7:
You have to download configured Borland Compiler from http://www.4shared.com/get/Gs41_5yA/borland_for_graphics.html or http://dwij.co.in/graphics-c-programming-for-windows-7-borland-compiler/.
Put your Borland’s ‘bin’ folder into Environmental Variables.
Now go inside folder ‘bin’ & edit file bcc32.cfg as per your folder structure. This file contains settings of headers & libraries.
-I"D:\Borland\include;"
-L"D:\Borland\lib;D:\Borland\Lib\PSDK"
Now create any C/C++ Program say myprogram.cpp
Use following command to compile this bunch of code:
F:\>bcc32 myprogram.cpp
When your scenario is simple you can use
import store from '../store';
export const SOME_ACTION = 'SOME_ACTION';
export function someAction() {
return {
type: SOME_ACTION,
items: store.getState().otherReducer.items,
}
}
But sometimes your action creator
need to trigger multi actions
for example async request so you need
REQUEST_LOAD
REQUEST_LOAD_SUCCESS
REQUEST_LOAD_FAIL
actions
export const [REQUEST_LOAD, REQUEST_LOAD_SUCCESS, REQUEST_LOAD_FAIL] = [`REQUEST_LOAD`
`REQUEST_LOAD_SUCCESS`
`REQUEST_LOAD_FAIL`
]
export function someAction() {
return (dispatch, getState) => {
const {
items
} = getState().otherReducer;
dispatch({
type: REQUEST_LOAD,
loading: true
});
$.ajax('url', {
success: (data) => {
dispatch({
type: REQUEST_LOAD_SUCCESS,
loading: false,
data: data
});
},
error: (error) => {
dispatch({
type: REQUEST_LOAD_FAIL,
loading: false,
error: error
});
}
})
}
}
Note: you need redux-thunk to return function in action creator
Just Additional Info which took me long time to find.what if you were using the field name and not id for identifying the form field. You do it like this:
For radio button:
var inp= $('input:radio[name=PatientPreviouslyReceivedDrug]:checked').val();
For textbox:
var txt=$('input:text[name=DrugDurationLength]').val();
Yes: Source
switch(shape)
{
case Circle c:
WriteLine($"circle with radius {c.Radius}");
break;
case Rectangle s when (s.Length == s.Height):
WriteLine($"{s.Length} x {s.Height} square");
break;
case Rectangle r:
WriteLine($"{r.Length} x {r.Height} rectangle");
break;
default:
WriteLine("<unknown shape>");
break;
case null:
throw new ArgumentNullException(nameof(shape));
}
No.
http://blogs.msdn.com/b/peterhal/archive/2005/07/05/435760.aspx
We get a lot of requests for addditions to the C# language and today I'm going to talk about one of the more common ones - switch on type. Switch on type looks like a pretty useful and straightforward feature: Add a switch-like construct which switches on the type of the expression, rather than the value. This might look something like this:
switch typeof(e) {
case int: ... break;
case string: ... break;
case double: ... break;
default: ... break;
}
This kind of statement would be extremely useful for adding virtual method like dispatch over a disjoint type hierarchy, or over a type hierarchy containing types that you don't own. Seeing an example like this, you could easily conclude that the feature would be straightforward and useful. It might even get you thinking "Why don't those #*&%$ lazy C# language designers just make my life easier and add this simple, timesaving language feature?"
Unfortunately, like many 'simple' language features, type switch is not as simple as it first appears. The troubles start when you look at a more significant, and no less important, example like this:
class C {}
interface I {}
class D : C, I {}
switch typeof(e) {
case C: … break;
case I: … break;
default: … break;
}
Link: https://blogs.msdn.microsoft.com/peterhal/2005/07/05/many-questions-switch-on-type/
Given this is such a common issue, geronto-posting:
if(UNIX AND NOT APPLE)
set(LINUX TRUE)
endif()
# if(NOT LINUX) should work, too, if you need that
if(LINUX)
message(STATUS ">>> Linux")
# linux stuff here
else()
message(STATUS ">>> Not Linux")
# stuff that should happen not on Linux
endif()
Using routerLinkActive
is good in simple cases, when there is a link and you want to apply some classes. But in more complex cases where you may not have a routerLink or where you need something more you can create and use a pipe:
@Pipe({
name: "isRouteActive",
pure: false
})
export class IsRouteActivePipe implements PipeTransform {
constructor(private router: Router,
private activatedRoute: ActivatedRoute) {
}
transform(route: any[], options?: { queryParams?: any[], fragment?: any, exact?: boolean }) {
if (!options) options = {};
if (options.exact === undefined) options.exact = true;
const currentUrlTree = this.router.parseUrl(this.router.url);
const urlTree = this.router.createUrlTree(route, {
relativeTo: this.activatedRoute,
queryParams: options.queryParams,
fragment: options.fragment
});
return containsTree(currentUrlTree, urlTree, options.exact);
}
}
then:
<div *ngIf="['/some-route'] | isRouteActive">...</div>
and don't forget to include pipe in the pipes dependencies ;)
Update database and Set fieldName=Replace (fieldName,'FindString','ReplaceString')
For example, decod string:
"uo jxuhu! jxyi yi qd unqcfbu ev q squiqh syfxuh. muhu oek qrbu je tusetu yj? y xefu ie! iudt cu q cuiiqwu rqsa myjx jxu iqcu evviuj!".
This message has an offset of 10.
Code below:
import string
alphabet = list(string.ascii_lowercase)
print(alphabet, len(alphabet))
messege = "xuo jxuhu! jxyi yi qd unqcfbu ev q squiqh syfxuh. muhu oek qrbu je tusetu yj? y xefu ie! iudt cu q cuiiqwu rqsa myjx jxu iqcu evviuj!"
messege_split = messege.split()
print(messege_split)
encrypted_messege = ""
position = 0
for i in messege_split:
for j in i:
if ord(j) < 65:
encrypted_messege += j
else:
for k in alphabet:
if j == k:
position = alphabet.index(k)
if (position + 10) >= len(alphabet):
encrypted_messege += alphabet[abs((position + 10) - len(alphabet))]
else:
encrypted_messege += alphabet[position + 10]
encrypted_messege += " "
print(encrypted_messege)
Decoded string:
"hey there! this is an example of a caesar cipher. were you able to decode it? i hope so! send me a message back with the same offset!"
TRY IT!
Post from UNIX.COM
Shell features
This table below lists most features that I think would make you choose one shell over another. It is not intended to be a definitive list and does not include every single possible feature for every single possible shell. A feature is only considered to be in a shell if in the version that comes with the operating system, or if it is available as compiled directly from the standard distribution. In particular the C shell specified below is that available on SUNOS 4.*, a considerable number of vendors now ship either tcsh or their own enhanced C shell instead (they don't always make it obvious that they are shipping tcsh.
Code:
sh csh ksh bash tcsh zsh rc es
Job control N Y Y Y Y Y N N
Aliases N Y Y Y Y Y N N
Shell functions Y(1) N Y Y N Y Y Y
"Sensible" Input/Output redirection Y N Y Y N Y Y Y
Directory stack N Y Y Y Y Y F F
Command history N Y Y Y Y Y L L
Command line editing N N Y Y Y Y L L
Vi Command line editing N N Y Y Y(3) Y L L
Emacs Command line editing N N Y Y Y Y L L
Rebindable Command line editing N N N Y Y Y L L
User name look up N Y Y Y Y Y L L
Login/Logout watching N N N N Y Y F F
Filename completion N Y(1) Y Y Y Y L L
Username completion N Y(2) Y Y Y Y L L
Hostname completion N Y(2) Y Y Y Y L L
History completion N N N Y Y Y L L
Fully programmable Completion N N N N Y Y N N
Mh Mailbox completion N N N N(4) N(6) N(6) N N
Co Processes N N Y N N Y N N
Builtin artithmetic evaluation N Y Y Y Y Y N N
Can follow symbolic links invisibly N N Y Y Y Y N N
Periodic command execution N N N N Y Y N N
Custom Prompt (easily) N N Y Y Y Y Y Y
Sun Keyboard Hack N N N N N Y N N
Spelling Correction N N N N Y Y N N
Process Substitution N N N Y(2) N Y Y Y
Underlying Syntax sh csh sh sh csh sh rc rc
Freely Available N N N(5) Y Y Y Y Y
Checks Mailbox N Y Y Y Y Y F F
Tty Sanity Checking N N N N Y Y N N
Can cope with large argument lists Y N Y Y Y Y Y Y
Has non-interactive startup file N Y Y(7) Y(7) Y Y N N
Has non-login startup file N Y Y(7) Y Y Y N N
Can avoid user startup files N Y N Y N Y Y Y
Can specify startup file N N Y Y N N N N
Low level command redefinition N N N N N N N Y
Has anonymous functions N N N N N N Y Y
List Variables N Y Y N Y Y Y Y
Full signal trap handling Y N Y Y N Y Y Y
File no clobber ability N Y Y Y Y Y N F
Local variables N N Y Y N Y Y Y
Lexically scoped variables N N N N N N N Y
Exceptions N N N N N N N Y
Key to the table above.
Y Feature can be done using this shell.
N Feature is not present in the shell.
F Feature can only be done by using the shells function mechanism.
L The readline library must be linked into the shell to enable this Feature.
Notes to the table above
1. This feature was not in the original version, but has since become
almost standard.
2. This feature is fairly new and so is often not found on many
versions of the shell, it is gradually making its way into
standard distribution.
3. The Vi emulation of this shell is thought by many to be
incomplete.
4. This feature is not standard but unofficial patches exist to
perform this.
5. A version called 'pdksh' is freely available, but does not have
the full functionality of the AT&T version.
6. This can be done via the shells programmable completion mechanism.
7. Only by specifying a file via the ENV environment variable.
I know this was posted a long while ago, and it has been marked answered, but to me, the selected answer was not answering the question I thought the user was posing. It seemed to me he was looking for the approach one can take in ASP .Net that corresponds to his inline data binding previously performed in php.
Here was his php:
<p>Here is the username: <?php echo GetUserName(); ?></p>
Here is what one would do in ASP .Net:
<p>Here is the username: <%= GetUserName() %></p>
It's just as easy as the following:
AND> if+if
if "%VAR1%"=="VALUE" if "%VAR2%"=="VALUE" *do something*
OR> if // if
set BOTH=0
if "%VAR1%"=="VALUE" if "%VAR2%"=="VALUE" set BOTH=1
if "%BOTH%"=="0" if "%VAR1%"=="VALUE" *do something*
if "%BOTH%"=="0" if "%VAR2%"=="VALUE" *do something*
I know that there are other answers, but I think that the mine is more simple, so more easy to understand. Hope this helps you! ;)
It seems that Firefox gets installed in the App data folder
Path C:\Users\users\AppData\Local\Mozilla Firefox
So you can set the firefox bin property as below
System.setProperty("webdriver.firefox.bin", "C:\\Users\\*USERNAME*\\AppData\\Local\\Mozilla Firefox\\Firefox.exe");
Adding this resolved the issue for me
I fixed it by installing Android SDK Build-tools 20:
In Eclipse ? Pull Down Menu ? Window ? Android SDK Manager, check Android SDK Build-tools Rev. 20, then click the Install n package(s)… button to start installing.
Possibly worth noting that if you're still in your editor with the commit message, you can delete the commit message and it will abort the git commit --amend
command.
From the source code:
// Instance of WebViewClient that is the client callback.
private volatile WebViewClient mWebViewClient;
// Instance of WebChromeClient for handling all chrome functions.
private volatile WebChromeClient mWebChromeClient;
// SOME OTHER SUTFFF.......
/**
* Set the WebViewClient.
* @param client An implementation of WebViewClient.
*/
public void setWebViewClient(WebViewClient client) {
mWebViewClient = client;
}
/**
* Set the WebChromeClient.
* @param client An implementation of WebChromeClient.
*/
public void setWebChromeClient(WebChromeClient client) {
mWebChromeClient = client;
}
Using WebChromeClient allows you to handle Javascript dialogs, favicons, titles, and the progress. Take a look of this example: Adding alert() support to a WebView
At first glance, there are too many differences WebViewClient & WebChromeClient. But, basically: if you are developing a WebView that won't require too many features but rendering HTML, you can just use a WebViewClient
. On the other hand, if you want to (for instance) load the favicon of the page you are rendering, you should use a WebChromeClient
object and override the onReceivedIcon(WebView view, Bitmap icon)
.
Most of the times, if you don't want to worry about those things... you can just do this:
webView= (WebView) findViewById(R.id.webview);
webView.setWebChromeClient(new WebChromeClient());
webView.setWebViewClient(new WebViewClient());
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl(url);
And your WebView will (in theory) have all features implemented (as the android native browser).
A div can can hold more than one classes either using bootstrap or not
<div class="active dropdown-toggle my-class">Multiple Classes</div>
For applying multiple classes just separate the classes by space.
Take a look at this links you will find many examples
http://getbootstrap.com/css/
http://css-tricks.com/un-bloat-css-by-using-multiple-classes/
You can use %x
or %X
or %p
; all of them are correct.
%x
, the address is given as lowercase, for example: a3bfbc4
%X
, the address is given as uppercase, for example: A3BFBC4
Both of these are correct.
If you use %x
or %X
it's considering six positions for the address, and if you use %p
it's considering eight positions for the address. For example:
Use an URL
instead of File
for any access that is not on your local computer.
URL url = new URL("http://www.puzzlers.org/pub/wordlists/pocket.txt");
Scanner s = new Scanner(url.openStream());
Actually, URL is even more generally useful, also for local access (use a file:
URL), jar files, and about everything that one can retrieve somehow.
The way above interprets the file in your platforms default encoding. If you want to use the encoding indicated by the server instead, you have to use a URLConnection and parse it's content type, like indicated in the answers to this question.
About your Error, make sure your file compiles without any errors - you need to handle the exceptions. Click the red messages given by your IDE, it should show you a recommendation how to fix it. Do not start a program which does not compile (even if the IDE allows this).
Here with some sample exception-handling:
try {
URL url = new URL("http://www.puzzlers.org/pub/wordlists/pocket.txt");
Scanner s = new Scanner(url.openStream());
// read from your scanner
}
catch(IOException ex) {
// there was some connection problem, or the file did not exist on the server,
// or your URL was not in the right format.
// think about what to do now, and put it here.
ex.printStackTrace(); // for now, simply output it.
}
String s;
Format formatter;
Date date = new Date();
// 2012-12-01
formatter = new SimpleDateFormat("yyyy-MM-dd");
s = formatter.format(date);
System.out.println(s);
NodeJS supports http.request as a standard module: http://nodejs.org/docs/v0.4.11/api/http.html#http.request
var http = require('http');
var options = {
host: 'example.com',
port: 80,
path: '/foo.html'
};
http.get(options, function(resp){
resp.on('data', function(chunk){
//do something with chunk
});
}).on("error", function(e){
console.log("Got error: " + e.message);
});
One way to do this without using VUE-CLI is to bundle the all script files into one fat js file and then reference that big fat javascript file into main template file.
I prefer to use webpack as a bundler and create a webpack.conig.js in the root directory of project. All the configs such as entry point, output file, loaders, etc.. are all stored in that config file. After that, I add a script in package.json file that uses webpack.config.js file for webpack configs and start watching files and create a Js bundled file into mentioned location in webpack.config.js file.
If you installed mongodb with homebrew, there's an easier way:
List mongo job with launchctl:
launchctl list | grep mongo
Stop mongo job:
launchctl stop <job label>
(For me this is launchctl stop homebrew.mxcl.mongodb
)
Start mongo job:
launchctl start <job label>
The Password Visibility Toggle feature has been added to support library version 24.2.0 enabling you to toggle the password straight from the EditText
without the need for a CheckBox
.
You can make that work basically by first updating your support library version to 24.2.0 and then setting an inputType
of password on the TextInputEditText
. Here's how to do that:
<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.TextInputEditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/password"
android:inputType="textPassword"/>
</android.support.design.widget.TextInputLayout>
You can get more information about the new feature on the developer documentation for TextInputLayout.
Just putting another suggesting in the bowl: Spyder
It has History log and Variable explorer. If you have worked with MatLab, then you'll see the similarities.
SELECT CONVERT_TZ() will work for that.but its not working for me.
Why, what error do you get?
SELECT CONVERT_TZ(displaytime,'GMT','MET');
should work if your column type is timestamp, or date
http://dev.mysql.com/doc/refman/5.0/en/date-and-time-functions.html#function_convert-tz
Test how this works:
SELECT CONVERT_TZ(a_ad_display.displaytime,'+00:00','+04:00');
Check your timezone-table
SELECT * FROM mysql.time_zone;
SELECT * FROM mysql.time_zone_name;
http://dev.mysql.com/doc/refman/5.5/en/time-zone-support.html
If those tables are empty, you have not initialized your timezone tables. According to link above you can use mysql_tzinfo_to_sql
program to load the Time Zone Tables. Please try this
shell> mysql_tzinfo_to_sql /usr/share/zoneinfo
or if not working read more: http://dev.mysql.com/doc/refman/5.5/en/mysql-tzinfo-to-sql.html
If you really want to be sure of orders, use "Row_Number()" and compare next record of current record (take a close look at "on" clause)
T1.ID + 1 = T2.ID
You are basically joining next row with current row, without specifying "min" or doing "top". If you have a small number of records, other solutions by "Dems" or "Quassanoi" will work fine.
with T2 as (
select ID = ROW_NUMBER() over (order by rowInt),
rowInt, Value
from myTable
)
select T1.RowInt, T1.Value, Diff = IsNull(T2.Value, 0) - T1.Value
from ( SELECT ID = ROW_NUMBER() over (order by rowInt), *
FROM myTable ) T1
left join T2 on T1.ID + 1 = T2.ID
ORDER BY T1.ID
A simple example if you only are looking for a process name exist or not:
import os
def pname_exists(inp):
os.system('ps -ef > /tmp/psef')
lines=open('/tmp/psef', 'r').read().split('\n')
res=[i for i in lines if inp in i]
return True if res else False
Result:
In [21]: pname_exists('syslog')
Out[21]: True
In [22]: pname_exists('syslog_')
Out[22]: False
Here is an implementation that streams the file's content out without buffering it (buffering in byte[] / MemoryStream, etc. can be a server problem if it's a big file).
public class FileResult : IHttpActionResult
{
public FileResult(string filePath)
{
if (filePath == null)
throw new ArgumentNullException(nameof(filePath));
FilePath = filePath;
}
public string FilePath { get; }
public Task<HttpResponseMessage> ExecuteAsync(CancellationToken cancellationToken)
{
var response = new HttpResponseMessage(HttpStatusCode.OK);
response.Content = new StreamContent(File.OpenRead(FilePath));
var contentType = MimeMapping.GetMimeMapping(Path.GetExtension(FilePath));
response.Content.Headers.ContentType = new MediaTypeHeaderValue(contentType);
return Task.FromResult(response);
}
}
It can be simply used like this:
public class MyController : ApiController
{
public IHttpActionResult Get()
{
string filePath = GetSomeValidFilePath();
return new FileResult(filePath);
}
}
df.insert(0, 'New_ID', range(880, 880 + len(df)))
df
Update 2019
In Bootstrap 4, flexbox can be used to get a full height layout that fills the remaining space.
First of all, the container (parent) needs to be full height:
Option 1_ Add a class for min-height: 100%;
. Remember that min-height will only work if the parent has a defined height:
html, body {
height: 100%;
}
.min-100 {
min-height: 100%;
}
https://codeply.com/go/dTaVyMah1U
Option 2_ Use vh
units:
.vh-100 {
min-height: 100vh;
}
https://codeply.com/go/kMahVdZyGj
Also of Bootstrap 4.1, the vh-100
and min-vh-100
classes are included in Bootstrap so there is no need to for the extra CSS
Then, use flexbox direction column d-flex flex-column
on the container, and flex-grow-1
on any child divs (ie: row
) that you want to fill the remaining height.
Also see:
Bootstrap 4 Navbar and content fill height flexbox
Bootstrap - Fill fluid container between header and footer
How to make the row stretch remaining height
Using NLTK:
from nltk.corpus import wordnet
if not wordnet.synsets(word_to_test):
#Not an English Word
else:
#English Word
You should refer to this article if you have trouble installing wordnet or want to try other approaches.
Update - better version 18th July 2019.
Final summary, even though I've moved on to powershell for most windows console work anyway, but I decided to wrap this old cmd issue up, I had to get on a cmd console today, and the lack of this feature really struck me. This one finally works with spaces as well, where my previous answer would fail.
In addition, this one now is also able to use ~ as a prefix for other home sub-folders too, and it swaps forward-slashes to back-slashes as well. So here it is;
Step 1. Create these doskey macros, somewhere they get picked up every time cmd starts up.
DOSKEY cd=cdtilde.bat $*
DOSKEY cd~=chdir /D "%USERPROFILE%"
DOSKEY cd..=chdir ..
Step 2. Create the cdtilde.bat file and put it somewhere in your PATH
@echo off
set dirname=""
set dirname=%*
set orig_dirname=%*
:: remove quotes - will re-attach later.
set dirname=%dirname:\"=%
set dirname=%dirname:/"=%
set dirname=%dirname:"=%
:: restore dirnames that contained only "/"
if "%dirname%"=="" set dirname=%orig_dirname:"=%
:: strip trailing slash, if longer than 3
if defined dirname if NOT "%dirname:~3%"=="" (
if "%dirname:~-1%"=="\" set dirname="%dirname:~0,-1%"
if "%dirname:~-1%"=="/" set dirname="%dirname:~0,-1%"
)
set dirname=%dirname:"=%
:: if starts with ~, then replace ~ with userprofile path
if %dirname:~0,1%==~ (
set dirname="%USERPROFILE%%dirname:~1%"
)
set dirname=%dirname:"=%
:: replace forward-slashes with back-slashes
set dirname="%dirname:/=\%"
set dirname=%dirname:"=%
chdir /D "%dirname%"
Tested fine with;
cd ~ (traditional habit)
cd~ (shorthand version)
cd.. (shorthand for going up..)
cd / (eg, root of C:)
cd ~/.config (eg, the .config folder under my home folder)
cd /Program Files (eg, "C:\Program Files")
cd C:/Program Files (eg, "C:\Program Files")
cd \Program Files (eg, "C:\Program Files")
cd C:\Program Files (eg, "C:\Program Files")
cd "C:\Program Files (eg, "C:\Program Files")
cd "C:\Program Files" (eg, "C:\Program Files")
Oh, also it allows lazy quoting, which I found useful, even when spaces are in the folder path names, since it wraps all of the arguments as if it was one long string. Which means just an initial quote also works, or completely without quotes also works.
All other stuff below may be ignored now, it is left for historical reasons - so I dont make the same mistakes again
old update 19th Oct 2018.
In case anyone else tried my approach, my original answer below didn't handle spaces, eg, the following failed.
> cd "c:\Program Files"
Files""]==["~"] was unexpected at this time.
I think there must be a way to solve that. Will post again if I can improve my answer. (see above, I finally got it all working the way I wanted it to.)
My Original Answer, still needed work... 7th Oct 2018.
I was just trying to do it today, and I think I got it, this is what I think works well;
First, some doskey macros;
DOSKEY cd=cdtilde.bat $*
DOSKEY cd~=chdir /D "%USERPROFILE%"
DOSKEY cd..=chdir ..
and then then a bat file in my path;
cdtilde.bat
@echo off
if ["%1"]==["~"] (
chdir /D "%USERPROFILE%"
) else (
chdir /D %*
)
All these seem to work fine;
cd ~ (traditional habit)
cd~ (shorthand version)
cd.. (shorthand for going up..)
The XP Support Tools (which can be installed from your XP CD) come with a program called setx.exe
:
C:\Program Files\Support Tools>setx /?
SETX: This program is used to set values in the environment
of the machine or currently logged on user using one of three modes.
1) Command Line Mode: setx variable value [-m]
Optional Switches:
-m Set value in the Machine environment. Default is User.
...
For more information and example use: SETX -i
I think Windows 7 actually comes with setx
as part of a standard install.
MySQL 5.7 supports computed columns. They call it "Generated Columns" and the syntax is a little weird, but it supports the same options I see in other databases.
https://dev.mysql.com/doc/refman/5.7/en/create-table.html#create-table-generated-columns
In my understanding according to Python glossary, when you create a instance of objects that are hashable, an unchangeable value is also calculated according to the members or values of the instance. For example, that value could then be used as a key in a dict as below:
>>> tuple_a = (1,2,3)
>>> tuple_a.__hash__()
2528502973977326415
>>> tuple_b = (2,3,4)
>>> tuple_b.__hash__()
3789705017596477050
>>> tuple_c = (1,2,3)
>>> tuple_c.__hash__()
2528502973977326415
>>> id(a) == id(c) # a and c same object?
False
>>> a.__hash__() == c.__hash__() # a and c same value?
True
>>> dict_a = {}
>>> dict_a[tuple_a] = 'hiahia'
>>> dict_a[tuple_c]
'hiahia'
we can find that the hash value of tuple_a and tuple_c are the same since they have the same members. When we use tuple_a as the key in dict_a, we can find that the value for dict_a[tuple_c] is the same, which means that, when they are used as the key in a dict, they return the same value because the hash values are the same. For those objects that are not hashable, the method hash is defined as None:
>>> type(dict.__hash__)
<class 'NoneType'>
I guess this hash value is calculated upon the initialization of the instance, not in a dynamic way, that's why only immutable objects are hashable. Hope this helps.
About half of the answers here are the same String.hashCode
hash function taken from Java. It dates back to 1981 from Gosling Emacs, is extremely weak, and makes zero sense performance-wise in modern JavaScript. In fact, implementations could be significantly faster by using ES6 Math.imul
, but no one took notice. We can do much better than this, at essentially identical performance.
Here's something I did—cyrb53, a simple but high quality 53-bit hash. It's quite fast, provides very good hash distribution, and has significantly lower collision rates compared to any 32-bit hash.
const cyrb53 = function(str, seed = 0) {
let h1 = 0xdeadbeef ^ seed, h2 = 0x41c6ce57 ^ seed;
for (let i = 0, ch; i < str.length; i++) {
ch = str.charCodeAt(i);
h1 = Math.imul(h1 ^ ch, 2654435761);
h2 = Math.imul(h2 ^ ch, 1597334677);
}
h1 = Math.imul(h1 ^ (h1>>>16), 2246822507) ^ Math.imul(h2 ^ (h2>>>13), 3266489909);
h2 = Math.imul(h2 ^ (h2>>>16), 2246822507) ^ Math.imul(h1 ^ (h1>>>13), 3266489909);
return 4294967296 * (2097151 & h2) + (h1>>>0);
};
It is similar to the well-known MurmurHash/xxHash algorithms, it uses a combination of multiplication and Xorshift to generate the hash, but not as thorough. As a result it's faster than either in JavaScript and significantly simpler to implement. Furthermore, keep in mind this is not a secure algorithm, if privacy/security is a concern, this is not for you.
Like any proper hash, it has an avalanche effect, which basically means small changes in the input have big changes in the output making the resulting hash appear more 'random':
"501c2ba782c97901" = cyrb53("a")
"459eda5bc254d2bf" = cyrb53("b")
"fbce64cc3b748385" = cyrb53("revenge")
"fb1d85148d13f93a" = cyrb53("revenue")
You can also supply a seed for alternate streams of the same input:
"76fee5e6598ccd5c" = cyrb53("revenue", 1)
"1f672e2831253862" = cyrb53("revenue", 2)
"2b10de31708e6ab7" = cyrb53("revenue", 3)
Technically, it is a 64-bit hash, that is, two uncorrelated 32-bit hashes computed in parallel, but JavaScript is limited to 53-bit integers. If convenient, the full 64-bit output can be used by altering the return statement with a hex string or array.
return [h2>>>0, h1>>>0];
// or
return (h2>>>0).toString(16).padStart(8,0)+(h1>>>0).toString(16).padStart(8,0);
Be aware that constructing hex strings drastically slows down batch processing. The array is more efficient, but obviously requires two checks instead of one.
Just for fun, here's the smallest hash I could come up with that's still decent. It's a 32-bit hash in 89 chars with better quality randomness than even FNV or DJB2:
TSH=s=>{for(var i=0,h=9;i<s.length;)h=Math.imul(h^s.charCodeAt(i++),9**9);return h^h>>>9}
The command in DougWare's answer did not work, but this did:
reg delete "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v FOOBAR /f
The shortcut HKLM
can be used for HKEY_LOCAL_MACHINE
.
There is no difference. They both declare "a" to be an integer that cannot be changed.
The place where differences start to appear is when you use pointers.
Both of these:
const int *a
int const *a
declare "a" to be a pointer to an integer that doesn't change. "a" can be assigned to, but "*a" cannot.
int * const a
declares "a" to be a constant pointer to an integer. "*a" can be assigned to, but "a" cannot.
const int * const a
declares "a" to be a constant pointer to a constant integer. Neither "a" nor "*a" can be assigned to.
static int one = 1;
int testfunc3 (const int *a)
{
*a = 1; /* Error */
a = &one;
return *a;
}
int testfunc4 (int * const a)
{
*a = 1;
a = &one; /* Error */
return *a;
}
int testfunc5 (const int * const a)
{
*a = 1; /* Error */
a = &one; /* Error */
return *a;
}
Another way of dealing with this situation if your files ARE already checked in, and your files have been merged (but not committed, so the merge conflicts are inserted into the file) is to run:
git reset
This will switch to HEAD, and tell git to forget any merge conflicts, and leave the working directory as is. Then you can edit the files in question (search for the "Updated upstream" notices). Once you've dealt with the conflicts, you can run
git add -p
which will allow you to interactively select which changes you want to add to the index. Once the index looks good (git diff --cached
), you can commit, and then
git reset --hard
to destroy all the unwanted changes in your working directory.
Perhaps you need to read about interactive usage of Matplotlib. However, if you are going to build an app, you should be using the API and embedding the figures in the windows of your chosen GUI toolkit (see examples/embedding_in_tk.py
, etc).
For Python 2.x, use python's hashlib
import hashlib
m = hashlib.md5()
m.update("000005fab4534d05api_key9a0554259914a86fb9e7eb014e4e5d52permswrite")
print m.hexdigest()
Output: a02506b31c1cd46c2e0b6380fb94eb3d
Use the following query for all the procedures:
select * from sysobjects
where type='p'
order by crdate desc
Maven versions can contain a string literal "SNAPSHOT" to signify that a project is currently under active development.
For example, if your project has a version of “1.0-SNAPSHOT” and you deploy this project’s artifacts to a Maven repository, Maven would expand this version to “1.0-20080207-230803-1” if you were to deploy a release at 11:08 PM on February 7th, 2008 UTC. In other words, when you deploy a snapshot, you are not making a release of a software component; you are releasing a snapshot of a component at a specific time.
So mainly snapshot versions are used for projects under active development. If your project depends on a software component that is under active development, you can depend on a snapshot release, and Maven will periodically attempt to download the latest snapshot from a repository when you run a build. Similarly, if the next release of your system is going to have a version “1.8,” your project would have a “1.8-SNAPSHOT” version until it was formally released.
For example , the following dependency would always download the latest 1.8 development JAR of spring:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring</artifactId>
<version>1.8-SNAPSHOT”</version>
</dependency>
An example of maven release process
&
is bitwise.
&&
is logical.
&
evaluates both sides of the operation.
&&
evaluates the left side of the operation, if it's true
, it continues and evaluates the right side.
Define is evaluated before compilation by the pre-processor, while variables are referenced at run-time. This means you control how your application is built (not how it runs)
Here are a couple examples that use define which cannot be replaced by a variable:
#define min(i, j) (((i) < (j)) ? (i) : (j))
note this is evaluated by the pre-processor, not during runtime
In ES6 2 new methods are added for Number Object.
In it Number.isInteger() method returns true if the argument is an integer.
Example usage :
Number.isInteger(10); // returns true
Number.isInteger(10.5); // returns false
Number.isInteger("10"); // returns false
Tried this option in learning Spark processing with setting up Spark context in local machine. Requisite 1)Keep Spark sessionr running in local 2)Add Spark maven dependency 3)Keep the input file at root\input folder 4)output will be placed at \output folder. Getting max share value for year. down load any CSV from yahoo finance https://in.finance.yahoo.com/quote/CAPPL.BO/history/ Maven dependency and Scala code below -
<dependencies>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-core_2.11</artifactId>
<version>2.4.3</version>
<scope>provided</scope>
</dependency>
</dependencies>
object MaxEquityPriceForYear {
def main(args: Array[String]) {
val sparkConf = new SparkConf().setAppName("ShareMaxPrice").setMaster("local[2]").set("spark.executor.memory", "1g");
val sc = new SparkContext(sparkConf);
val input = "./input/CAPPL.BO.csv"
val output = "./output"
sc.textFile(input)
.map(_.split(","))
.map(rec => ((rec(0).split("-"))(0).toInt, rec(1).toFloat))
.reduceByKey((a, b) => Math.max(a, b))
.saveAsTextFile(output)
}
It looks like you trying to do something similar to C# if you want setAge create method
setAge(int age){
this.age = age;}
The equivalent of LIMIT
is SET ROWCOUNT
, but if you want generic pagination it's better to write a query like this:
;WITH Results_CTE AS
(
SELECT
Col1, Col2, ...,
ROW_NUMBER() OVER (ORDER BY SortCol1, SortCol2, ...) AS RowNum
FROM Table
WHERE <whatever>
)
SELECT *
FROM Results_CTE
WHERE RowNum >= @Offset
AND RowNum < @Offset + @Limit
The advantage here is the parameterization of the offset and limit in case you decide to change your paging options (or allow the user to do so).
Note: the @Offset
parameter should use one-based indexing for this rather than the normal zero-based indexing.
This fixed node.js not running on port 80 under Windows 10 as well, I was getting a listen eacces
error. Start > Services, find "World Wide Web Publish Service" and disable it, exactly as paaacman described.
One thing to watch out for though, particularly if you are using a framework, is to check if the application is regenerating session ids between requests - anything that depends explicitly on the session id will run into problems, although obviously the rest of the data in the session will unaffected.
If the application is regenerating session ids like this then you can end up with a situation where an ajax request in effect invalidates / replaces the session id in the requesting page.
I had the same problem... Had to recreate the project from scratch.
Note: my project was created in XCode 3.1 and was linking against a static library that was being built as a subproject (to a common destination). I changed this to build the source instead when I recreated the XCode project in XCode 4.
Now doing a Product/Archive/Share... gets the option of "iOS App Store Package (.ipa)" directly above "Application" (which is now greyed out) and "Archive" (which exports the .xcarchive).
Assuming that "a" and "b" are bean properties
rendered="#{bean.a==12 and (bean.b==13 or bean.b==15)}"
You may look at JSF EL operators
<CheckBox
android:id="@+id/checkBox1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Fees Paid Rs100:"
android:textColor="#276ca4"
android:checked="false"
android:onClick="checkbox_clicked" />
Main Activity from here
public class RegistA extends Activity {
CheckBox fee_checkbox;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_regist);
fee_checkbox = (CheckBox)findViewById(R.id.checkBox1);// Fee Payment Check box
}
checkbox clicked
public void checkbox_clicked(View v)
{
if(fee_checkbox.isChecked())
{
// true,do the task
}
else
{
}
}
Simply put, If you want to pull from GitHub the branch the_branch_I_want
:
git fetch origin
git branch -f the_branch_I_want origin/the_branch_I_want
git checkout the_branch_I_want
Alternatively, have a look at autotest.
Running autotest in a command window will mean that the spec file will be executed whenever you save it. Also, it will be run whenever the file you are speccing is run.
For instance, if you have a model spec file called person_spec.rb, and a model file that it is speccing called person.rb, then whenever you save either of these files from your editor, the spec file will be executed.
You should call this function from the controller.
angular.module('App', [])
.controller('CinemaCtrl', ['$scope', function($scope) {
myFunction();
}]);
Even with normal javascript/html your function won't run on page load as all your are doing is defining the function, you never call it. This is really nothing to do with angular, but since you're using angular the above would be the "angular way" to invoke the function.
Obviously better still declare the function in the controller too.
Edit: Actually I see your "onload" - that won't get called as angular injects the HTML into the DOM. The html is never "loaded" (or the page is only loaded once).
Association
Association represents the relationship between two classes.It can be unidirectional(one way) or bidirectional(two way)
for example:
Customer places orders
A is married to B
B is married to A
Aggregation
Aggregation is a kind of association.But with specific features.Aggregation is the relationship in one larger "whole" class contains one or more smaller "parts" classes.Conversely, a smaller "part" class is a part of "whole" larger class.
for example:
club has members
A club("whole") is made up of several club members("parts").Member have life to outside the club. If the club("whole") were to die, members("parts") would not die with it. Because member can belong to multiple clubs("whole").
Composition
This is a stronger form of aggregation."Whole" is responsible for the creation or destruction of its "parts"
For example:
A school has departments
In this case school("whole") were to die, department("parts") would die with it. Because each part can belong to only one "whole".
To clean this up a little bit and maintain a single line of code (like you would with a toggle()
), you can use a ternary operator so your code winds up looking like this (also using jQuery):
$('#video-over').css('visibility', $('#video-over').css('visibility') == 'hidden' ? 'visible' : 'hidden');
In Python 3, raw_input()
doesn't exist which was already mentioned by Sven.
In Python 2, the input()
function evaluates your input.
Example:
name = input("what is your name ?")
what is your name ?harsha
Traceback (most recent call last):
File "<pyshell#0>", line 1, in <module>
name = input("what is your name ?")
File "<string>", line 1, in <module>
NameError: name 'harsha' is not defined
In the example above, Python 2.x is trying to evaluate harsha as a variable rather than a string. To avoid that, we can use double quotes around our input like "harsha":
>>> name = input("what is your name?")
what is your name?"harsha"
>>> print(name)
harsha
raw_input()
The raw_input()` function doesn't evaluate, it will just read whatever you enter.
Example:
name = raw_input("what is your name ?")
what is your name ?harsha
>>> name
'harsha'
Example:
name = eval(raw_input("what is your name?"))
what is your name?harsha
Traceback (most recent call last):
File "<pyshell#11>", line 1, in <module>
name = eval(raw_input("what is your name?"))
File "<string>", line 1, in <module>
NameError: name 'harsha' is not defined
In example above, I was just trying to evaluate the user input with the eval
function.
%reset
seems to clear defined variables.
Why not pass an object to v-bind:class to dynamically toggle the class:
<div v-bind:class="{ disabled: order.cancelled_at }"></div>
This is what is recommended by the Vue docs.
Any line starting with a "REM" is treated as a comment, nothing is executed including the redirection.
Also, the %date% variable may contain "/" characters which are treated as path separator characters, leading to the system being unable to create the desired log file.
If you want to just display some text in your .cshtml page, I do not recommend @Html.Label and also not to use the html label as well. The element represents a caption in a user interface. and you'll see that in the case of @Html.Label, a for attribute is added, referring to the id of a, possibly non-existent, element. The value of this attribute is the value of the model field, in which non-alphanumerics are replaced by underscores. You should use @Html.Display or @Html.DisplayFor, possibly wrapped in some plain html elements line span or p.
You, or most likely your sysadmin, will need to login as root and run the chown command: http://www.computerhope.com/unix/uchown.htm
Through this command you will become the owner of the file.
Or, you can be a member of a group that owns this file and then you can use chmod.
But, talk with your sysadmin.
There is a workaround for the usual problem of spaces and newlines:
Use a character that is not in the original array (like $'\1'
or $'\4'
or similar).
This function gets the job done:
# Sort an Array may have spaces or newlines with a workaround (wa=$'\4')
sortarray(){ local wa=$'\4' IFS=''
if [[ $* =~ [$wa] ]]; then
echo "$0: error: array contains the workaround char" >&2
exit 1
fi
set -f; local IFS=$'\n' x nl=$'\n'
set -- $(printf '%s\n' "${@//$nl/$wa}" | sort -n)
for x
do sorted+=("${x//$wa/$nl}")
done
}
This will sort the array:
$ array=( a b 'c d' $'e\nf' $'g\1h')
$ sortarray "${array[@]}"
$ printf '<%s>\n' "${sorted[@]}"
<a>
<b>
<c d>
<e
f>
<gh>
This will complain that the source array contains the workaround character:
$ array=( a b 'c d' $'e\nf' $'g\4h')
$ sortarray "${array[@]}"
./script: error: array contains the workaround char
wa
(workaround char) and a null IFS$*
.[[ $* =~ [$wa] ]]
.exit 1
set -f
IFS=$'\n'
) a loop variable x
and a newline var (nl=$'\n'
).$@
)."${@//$nl/$wa}"
.sort -n
.set --
.for x
sorted+=(…)
"${x//$wa/$nl}"
.Depending on how you will use it, you might want to add a length limit to protect against buffer overflows.
System.out.println(String.format("%-20s= %s" , "label", "content" ));
The output looks like this:
label = content
As a reference I recommend Javadoc on formatter syntax
array_map('trim', $data)
would convert all subarrays into null
. If it is needed to trim spaces only for strings and leave other types as it is, you can use:
$data = array_map(
function ($item) {
return is_string($item) ? trim($item) : $item;
},
$data
);
Im not sure if im out of the subject, but i found solution for me; You have a class based view, and you want to have a get parameter as a template tag:
class MyView(DetailView):
model = MyModel
def get_context_data(self, **kwargs):
ctx = super().get_context_data(**kwargs)
ctx['tag_name'] = self.request.GET.get('get_parameter_name', None)
return ctx
Then you make your get request /mysite/urlname?get_parameter_name='stuff
.
In your template, when you insert {{ tag_name }}
, you will have access to the get parameter value ('stuff'). If you have an url in your template that also needs this parameter, you can do
{% url 'my_url' %}?get_parameter_name={{ tag_name }}"
You will not have to modify your url configuration
Kaloyan Stamatov method is the best. First go to https://fonts.googleapis.com/icon?family=Material+Icons. and copy the css file. the content look like this
/* fallback */
@font-face {
font-family: 'Material Icons';
font-style: normal;
font-weight: 400;
src: url(https://fonts.gstatic.com/s/materialicons/v37/flUhRq6tzZclQEJ-Vdg-IuiaDsNc.woff2) format('woff2');
}
.material-icons {
font-family: 'Material Icons';
font-weight: normal;
font-style: normal;
font-size: 24px;
line-height: 1;
letter-spacing: normal;
text-transform: none;
display: inline-block;
white-space: nowrap;
word-wrap: normal;
direction: ltr;
-moz-font-feature-settings: 'liga';
-moz-osx-font-smoothing: grayscale;
}
Paste the source of the font to the browser to download the woff2 file https://fonts.gstatic.com/s/materialicons/v37/flUhRq6tzZclQEJ-Vdg-IuiaDsNc.woff2 Then replace the file in the original source. You can rename it if you want No need to download 60MB file from github. Dead simple My code looks like this
@font-face {
font-family: 'Material Icons';
font-style: normal;
font-weight: 400;
src: url(materialIcon.woff2) format('woff2');
}
.material-icons {
font-family: 'Material Icons';
font-weight: normal;
font-style: normal;
font-size: 24px;
line-height: 1;
letter-spacing: normal;
text-transform: none;
display: inline-block;
white-space: nowrap;
word-wrap: normal;
direction: ltr;
-moz-font-feature-settings: 'liga';
-moz-osx-font-smoothing: grayscale;
}
while materialIcon.woff2 is the downloaded and replaced woff2 file.
Usually you already know the extension, so you might wish to use:
basename filename .extension
for example:
basename /path/to/dir/filename.txt .txt
and we get
filename
You will need to add the application.properties
file in your classpath.
If you are using Maven or Gradle, you can just put the file under src/main/resources
.
If you are not using Maven or any other build tools, put that under your src folder and you should be fine.
Then you can just add an entry server.port = xxxx
in the properties file.
DateTime.new(2012, 1, 15).to_time.to_i
The below query will do for Orale DB:
select distinct(city) from station where upper(substr(city, 1,1)) in ('A','E','I','O','U') and upper(substr(city, length(city),1)) in ('A','E','I','O','U');
To return the whole table at once you could change the SELECT to:
SELECT ...
BULK COLLECT INTO T
FROM ...
This is only advisable for results that aren't excessively large, since they all have to be accumulated in memory before being returned; otherwise consider the pipelined function as suggested by Charles, or returning a REF CURSOR.
Variable scope in Ruby is controlled by sigils to some degree. Variables starting with $
are global, variables with @
are instance variables, @@
means class variables, and names starting with a capital letter are constants. All other variables are locals. When you open a class or method, that's a new scope, and locals available in the previous scope aren't available.
I generally prefer to avoid creating global variables. There are two techniques that generally achieve the same purpose that I consider cleaner:
Create a constant in a module. So in this case, you would put all the classes that need the offset in the module Foo
and create a constant Offset
, so then all the classes could access Foo::Offset
.
Define a method to access the value. You can define the method globally, but again, I think it's better to encapsulate it in a module or class. This way the data is available where you need it and you can even alter it if you need to, but the structure of your program and the ownership of the data will be clearer. This is more in line with OO design principles.
As to why a 32-bit JVM is used instead of a 64-bit one, the reason is not technical but rather administrative/bureaucratic ...
When I was working for BEA, we found that the average application actually ran slower in a 64-bit JVM, then it did when running in a 32-bit JVM. In some cases, the performance hit was as high as 25% slower. So, unless your application really needs all that extra memory, you were better off setting up more 32-bit servers.
As I recall, the three most common technical justifications for using a 64-bit that BEA professional services personnel ran into were:
.
For PHP's own session cookies on Apache:
add this to your Apache configuration or .htaccess
<IfModule php5_module>
php_flag session.cookie_httponly on
</IfModule>
This can also be set within a script, as long as it is called before session_start()
.
ini_set( 'session.cookie_httponly', 1 );
None of these answers really work. As others noted the Cors package will only use the Access-Control-Allow-Origin header if the request had an Origin header. But you can't generally just add an Origin header to the request because browsers may try to regulate that too.
If you want a quick and dirty way to allow cross site requests to a web api, it's really a lot easier to just write a custom filter attribute:
public class AllowCors : ActionFilterAttribute
{
public override void OnActionExecuted(HttpActionExecutedContext actionExecutedContext)
{
if (actionExecutedContext == null)
{
throw new ArgumentNullException("actionExecutedContext");
}
else
{
actionExecutedContext.Response.Headers.Remove("Access-Control-Allow-Origin");
actionExecutedContext.Response.Headers.Add("Access-Control-Allow-Origin", "*");
}
base.OnActionExecuted(actionExecutedContext);
}
}
Then just use it on your Controller action:
[AllowCors]
public IHttpActionResult Get()
{
return Ok("value");
}
I won't vouch for the security of this in general, but it's probably a lot safer than setting the headers in the web.config since this way you can apply them only as specifically as you need them.
And of course it is simple to modify the above to allow only certain origins, methods etc.
Straight from nodejs's API docs on Console
const output = fs.createWriteStream('./stdout.log');
const errorOutput = fs.createWriteStream('./stderr.log');
// custom simple logger
const logger = new Console(output, errorOutput);
// use it like console
const count = 5;
logger.log('count: %d', count);
// in stdout.log: count 5
To answer my own question, the trick is to turn auto scaling off...
p.axis([0.0,600.0, 10000.0,20000.0])
ax = p.gca()
ax.set_autoscale_on(False)
In res folder select the XML file in which you want to view your images,
<ImageView
android:id="@+id/image1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/imagep1" />
I have also run into this issue in the past, so I am going to assume that your build process provides assembly information separately to providing versioning. And that causes a duplication as your project also has that info in the AssemblyInfo.cs
file. So remove the file and I think it should work.
Actually, you can always test it by yourself.
CREATE TABLE CUSTOMERS
(
CUSTOMER_ID NUMBER NOT NULL,
JOIN_DATE DATE NOT NULL,
CUSTOMER_STATUS VARCHAR2(8) NOT NULL,
CUSTOMER_NAME VARCHAR2(20) NOT NULL,
CREDITRATING VARCHAR2(10)
)
;
select column_name, data_type, nullable, data_length, data_precision, data_scale from user_tab_columns where table_name ='CUSTOMERS';
We can mock list properly for foreach loop. Please find below code snippet and explanation.
This is my actual class method where I want to create test case by mocking list.
this.nameList
is a list object.
public void setOptions(){
// ....
for (String str : this.nameList) {
str = "-"+str;
}
// ....
}
The foreach loop internally works on iterator, so here we crated mock of iterator.
Mockito framework has facility to return pair of values on particular method call by using Mockito.when().thenReturn()
, i.e. on hasNext()
we pass 1st true and on second call false, so that our loop will continue only two times. On next()
we just return actual return value.
@Test
public void testSetOptions(){
// ...
Iterator<SampleFilter> itr = Mockito.mock(Iterator.class);
Mockito.when(itr.hasNext()).thenReturn(true, false);
Mockito.when(itr.next()).thenReturn(Mockito.any(String.class);
List mockNameList = Mockito.mock(List.class);
Mockito.when(mockNameList.iterator()).thenReturn(itr);
// ...
}
In this way we can avoid sending actual list to test by using mock of list.
I think you should use python wheels for distribution instead of egg now.
Wheels are the new standard of python distribution and are intended to replace eggs. Support is offered in pip >= 1.4 and setuptools >= 0.8.
Fork creates a copy of a calling process. generally follows the structure
int cpid = fork( );
if (cpid = = 0)
{
//child code
exit(0);
}
//parent code
wait(cpid);
// end
(for child process text(code),data,stack is same as calling process) child process executes code in if block.
EXEC replaces the current process with new process's code,data,stack. generally follows the structure
int cpid = fork( );
if (cpid = = 0)
{
//child code
exec(foo);
exit(0);
}
//parent code
wait(cpid);
// end
(after exec call unix kernel clears the child process text,data,stack and fills with foo process related text/data) thus child process is with different code (foo's code {not same as parent})
void foo<TOne, TTwo>()
where TOne : BaseOne
where TTwo : BaseTwo
More info here:
http://msdn.microsoft.com/en-us/library/d5x73970.aspx
You forgot to add std::
namespace prefix to vector
class name.
Another way to do this would to first get row indices, append extra copies of the df, and then order by the indices:
df$index = 1:nrow(df)
df = rbind(df,df)
df = df[order(df$index),][,-ncol(df)]
Although the other solutions may be shorter, this method may be more advantageous in certain situations.
You should use single-quotes for string delimiters. The single-quote is the standard SQL string delimiter, and double-quotes are identifier delimiters (so you can use special words or characters in the names of tables or columns).
In MySQL, double-quotes work (nonstandardly) as a string delimiter by default (unless you set ANSI
SQL mode). If you ever use another brand of SQL database, you'll benefit from getting into the habit of using quotes standardly.
Another handy benefit of using single-quotes is that the literal double-quote characters within your string don't need to be escaped:
select * from tablename where fields like '%string "hi" %';
You could query an LDAP server from the command line with ldap-utils: ldapsearch, ldapadd, ldapmodify
I'd recommend to strip from the second and the following strings the string os.path.sep
, preventing them to be interpreted as absolute paths:
first_path_str = '/home/build/test/sandboxes/'
original_other_path_to_append_ls = [todaystr, '/new_sandbox/']
other_path_to_append_ls = [
i_path.strip(os.path.sep) for i_path in original_other_path_to_append_ls
]
output_path = os.path.join(first_path_str, *other_path_to_append_ls)
//Just add
RewriteBase /
//after
RewriteEngine On
//and you are done....
//so it should be
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^ index.php [QSA,L]
First you are linking the file that is here:
<script src="../Script/login.js">
Which would lead the website to a file in the Folder Script
, but then in the second paragraph you are saying that the folder name is
and also i have onother folder named scripts that contains the the following login.js file
So, this won't work! Because you are not accessing the correct file. To do that please write the code as
<script src="/script/login.js"></script>
Try removing the ..
from the beginning of the code too.
This way, you'll reach the js file where the function would run!
Just to make sure:
Just to make sure that the files are attached the HTML DOM, then please open Developer Tools (F12) and in the network workspace note each request that the browser makes to the server. This way you will learn which files were loaded and which weren't, and also why they were not!
Good luck.
Recommendation:
when you have more than one condition with and
and or
is better separate with ()
to avoid verification problems
<c:if test="${(not validID) and (addressIso == 'US' or addressIso == 'BR')}">
Here's my setup: I am on Ubuntu 9.10.
Now, Here's what I did.
Create an xml file "myapp.xml" (i guess it must have the same name as the name of the folder in step 2) inside /etc/tomcat6/Catalina/localhost with the following contents.
< Context path="/myapp" docBase="/usr/share/tomcat6-myapp/myapp" />
This xml is called the 'Deployment Descriptor' which Tomcat reads and automatically deploys your app named "myapp".
Now go to http://localhost:8080/myapp in your browser - the index.html gets picked up by tomcat and is shown.
I hope this helps!
Generally the first step is to not do that in the first place, but if this is already done, then you need to resort to properly quoting your column names:
SELECT `Business Name` FROM annoying_table
Usually these sorts of things are created by people who have used something like Microsoft Access and always use a GUI to do their thing.
ECMAScript 6 introduced the let
statement. You can use it in a for
statement.
var ids:string = [];
for(let result of this.results){
ids.push(result.Id);
}
alter session set current_schema = otheruser;
should do the trick.
scale(..)
works a bit differently. You can use bufferedImage.getScaledInstance(..)
In my version of SQL I can't use REPLICATE. SO I did this:
SELECT
CONCAT(REPEAT('0', 6-LENGTH(emplyeeID)), emplyeeID) AS emplyeeID
FROM
dbo.RequestItems`
As dan_nl stated, you can add a private fake repository in package.json. You don't even need name and version for it:
{
...,
"repository": {
"private": true
}
}
Update: This feature is undocumented and might not work. Choose the following option.
Better still: Set the private
flag directly. This way npm doesn't ask for a README file either:
{
"name": ...,
"description": ...,
"version": ...,
"private": true
}
extern keyword is used with the variable for its identification as a global variable.
It also represents that you can use the variable declared using extern keyword in any file though it is declared/defined in other file.
I finally created a module to get this question (partially) resolved. Basically this module rewrites http.request
function, added the proxy setting then fire. Check my blog post: https://web.archive.org/web/20160110023732/http://blog.shaunxu.me:80/archive/2013/09/05/semi-global-proxy-setting-for-node.js.aspx
Just remove the .val(). Like:
if ( $('html').attr('lang') == 'fr-FR' ) {
// do this
} else {
// do that
}
subprocess.Popen
takes a cwd
argument to set the Current Working Directory; you'll also want to escape your backslashes ('d:\\test\\local'
), or use r'd:\test\local'
so that the backslashes aren't interpreted as escape sequences by Python. The way you have it written, the \t
part will be translated to a tab.
So, your new line should look like:
subprocess.Popen(r'c:\mytool\tool.exe', cwd=r'd:\test\local')
To use your Python script path as cwd, import os
and define cwd using this:
os.path.dirname(os.path.realpath(__file__))
Change:
using (RegistryKey key = Registry.LocalMachine.OpenSubKey("Software\\Wow6432Node\\MySQL AB\\MySQL Connector\\Net"))
To:
using (RegistryKey key = Registry.LocalMachine.OpenSubKey("Software\Wow6432Node\MySQL AB\MySQL Connector\Net"))
I believe {}
was recommended in one of the Javascript vids on here as a good coding convention. new
is necessary for pseudoclassical inheritance. the var obj = {};
way helps to remind you that this is not a classical object oriented language but a prototypal one. Thus the only time you would really need new
is when you are using constructors functions. For example:
var Mammal = function (name) {
this.name = name;
};
Mammal.prototype.get_name = function () {
return this.name;
}
Mammal.prototype.says = function() {
return this.saying || '';
}
Then it is used like so:
var aMammal = new Mammal('Me warm-blooded');
var name = aMammal.get_name();
Another advantage to using {}
as oppose to new Object
is you can use it to do JSON-style object literals.
Try this
IsBodyHtml = false,
BodyEncoding = Encoding.UTF8,
BodyTransferEncoding = System.Net.Mime.TransferEncoding.EightBit
If you wish to stick to using \r\n
I managed to get mine working after trying for one whole day!
Another method is to expose a web-accessible resource, though this will allow any website to test if your extension is installed.
Suppose your extension's ID is aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
, and you add a file (say, a transparent pixel image) as test.png
in your extension's files.
Then, you expose this file to the web pages with web_accessible_resources
manifest key:
"web_accessible_resources": [
"test.png"
],
In your web page, you can try to load this file by its full URL (in an <img>
tag, via XHR, or in any other way):
chrome-extension://aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/test.png
If the file loads, then the extension is installed. If there's an error while loading this file, then the extension is not installed.
// Code from https://groups.google.com/a/chromium.org/d/msg/chromium-extensions/8ArcsWMBaM4/2GKwVOZm1qMJ
function detectExtension(extensionId, callback) {
var img;
img = new Image();
img.src = "chrome-extension://" + extensionId + "/test.png";
img.onload = function() {
callback(true);
};
img.onerror = function() {
callback(false);
};
}
Of note: if there is an error while loading this file, said network stack error will appear in the console with no possibility to silence it. When Chromecast used this method, it caused quite a bit of controversy because of this; with the eventual very ugly solution of simply blacklisting very specific errors from Dev Tools altogether by the Chrome team.
Important note: this method will not work in Firefox WebExtensions. Web-accessible resources inherently expose the extension to fingerprinting, since the URL is predictable by knowing the ID. Firefox decided to close that hole by assigning an instance-specific random URL to web accessible resources:
The files will then be available using a URL like:
moz-extension://<random-UUID>/<path/to/resource>
This UUID is randomly generated for every browser instance and is not your extension's ID. This prevents websites from fingerprinting the extensions a user has installed.
However, while the extension can use runtime.getURL()
to obtain this address, you can't hard-code it in your website.
CONNECTION_REFUSED is standard when the port is closed, but it could be rejected because SSL is failing authentication (one of a billion reasons). Did you configure SSL with Ratchet? (Apache is bypassed) Did you try without SSL in JavaScript?
I don't think Ratchet has built-in support for SSL. But even if it does you'll want to try the ws:// protocol first; it's a lot simpler, easier to debug, and closer to telnet. Chrome or the socket service may also be generating the REFUSED error if the service doesn't support SSL (because you explicitly requested SSL).
However the refused message is likely a server side problem, (usually port closed).
Smarter:
for (String key : hashMap.keySet()) {
System.out.println("Key: " + key + ", Value: " + map.get(key));
}
Checkout zirafa/bootstrap-grid-only. It contains only the bootstrap grid and responsive utilities that you need (no reset or anything), and simplifies the complexity of working directly with the LESS files.
Here is what I learned: PYTHONPATH is a directory to add to the Python import search path "sys.path", which is made up of current dir. CWD, PYTHONPATH, standard and shared library, and customer library. For example:
% python3 -c "import sys;print(sys.path)"
['',
'/home/username/Documents/DjangoTutorial/mySite',
'/usr/lib/python3.6', '/usr/lib/python3.6/lib-dynload',
'/usr/local/lib/python3.6/dist-packages', '/usr/lib/python3/dist-packages']
where the first path '' denotes the current dir., the 2nd path is via
%export PYTHONPATH=/home/username/Documents/DjangoTutorial/mySite
which can be added to ~/.bashrc to make it permanent, and the rest are Python standard and dynamic shared library plus third-party library such as django.
As said not to mess with PYTHONHOME, even setting it to '' or 'None' will cause python3 shell to stop working:
% export PYTHONHOME=''
% python3
Fatal Python error: Py_Initialize: Unable to get the locale encoding
ModuleNotFoundError: No module named 'encodings'
Current thread 0x00007f18a44ff740 (most recent call first):
Aborted (core dumped)
Note that if you start a Python script, the CWD will be the script's directory. For example:
username@bud:~/Documents/DjangoTutorial% python3 mySite/manage.py runserver
==== Printing sys.path ====
/home/username/Documents/DjangoTutorial/mySite # CWD is where manage.py resides
/usr/lib/python3.6
/usr/lib/python3.6/lib-dynload
/usr/local/lib/python3.6/dist-packages
/usr/lib/python3/dist-packages
You can also append a path to sys.path at run-time: Suppose you have a file Fibonacci.py in ~/Documents/Python directory:
username@bud:~/Documents/DjangoTutorial% python3
>>> sys.path.append("/home/username/Documents")
>>> print(sys.path)
['', '/usr/lib/python3.6', '/usr/lib/python3.6/lib-dynload',
'/usr/local/lib/python3.6/dist-packages', '/usr/lib/python3/dist-packages',
'/home/username/Documents']
>>> from Python import Fibonacci as fibo
or via
% PYTHONPATH=/home/username/Documents:$PYTHONPATH
% python3
>>> print(sys.path)
['',
'/home/username/Documents', '/home/username/Documents/DjangoTutorial/mySite',
'/usr/lib/python3.6', '/usr/lib/python3.6/lib-dynload',
'/usr/local/lib/python3.6/dist-packages', '/usr/lib/python3/dist-packages']
>>> from Python import Fibonacci as fibo
Wanted to ADD to the other answers described here an additional note, in the case of custom exceptions.
In the case where you create your own custom exception, that derives from std::exception
, when you catch "all possible" exceptions types, you should always start the catch
clauses with the "most derived" exception type that may be caught. See the example (of what NOT to do):
#include <iostream>
#include <string>
using namespace std;
class MyException : public exception
{
public:
MyException(const string& msg) : m_msg(msg)
{
cout << "MyException::MyException - set m_msg to:" << m_msg << endl;
}
~MyException()
{
cout << "MyException::~MyException" << endl;
}
virtual const char* what() const throw ()
{
cout << "MyException - what" << endl;
return m_msg.c_str();
}
const string m_msg;
};
void throwDerivedException()
{
cout << "throwDerivedException - thrown a derived exception" << endl;
string execptionMessage("MyException thrown");
throw (MyException(execptionMessage));
}
void illustrateDerivedExceptionCatch()
{
cout << "illustrateDerivedExceptionsCatch - start" << endl;
try
{
throwDerivedException();
}
catch (const exception& e)
{
cout << "illustrateDerivedExceptionsCatch - caught an std::exception, e.what:" << e.what() << endl;
// some additional code due to the fact that std::exception was thrown...
}
catch(const MyException& e)
{
cout << "illustrateDerivedExceptionsCatch - caught an MyException, e.what::" << e.what() << endl;
// some additional code due to the fact that MyException was thrown...
}
cout << "illustrateDerivedExceptionsCatch - end" << endl;
}
int main(int argc, char** argv)
{
cout << "main - start" << endl;
illustrateDerivedExceptionCatch();
cout << "main - end" << endl;
return 0;
}
NOTE:
0) The proper order should be vice-versa, i.e.- first you catch (const MyException& e)
which is followed by catch (const std::exception& e)
.
1) As you can see, when you run the program as is, the first catch clause will be executed (which is probably what you did NOT wanted in the first place).
2) Even though the type caught in the first catch clause is of type std::exception
, the "proper" version of what()
will be called - cause it is caught by reference (change at least the caught argument std::exception
type to be by value - and you will experience the "object slicing" phenomena in action).
3) In case that the "some code due to the fact that XXX exception was thrown..." does important stuff WITH RESPECT to the exception type, there is misbehavior of your code here.
4) This is also relevant if the caught objects were "normal" object like: class Base{};
and class Derived : public Base {}
...
5) g++ 7.3.0
on Ubuntu 18.04.1 produces a warning that indicates the mentioned issue:
In function ‘void illustrateDerivedExceptionCatch()’: item12Linux.cpp:48:2: warning: exception of type ‘MyException’ will be caught catch(const MyException& e) ^~~~~
item12Linux.cpp:43:2: warning: by earlier handler for ‘std::exception’ catch (const exception& e) ^~~~~
Again, I will say, that this answer is only to ADD to the other answers described here (I thought this point is worth mention, yet could not depict it within a comment).
Please note, this answer works with numeric data types (int, long). If you are starting with a string, you'll need to convert it to a number first. Also, please take into account that you'll need to validate that the initial string is at least 10 characters in length.
From a good page full of examples:
String.Format("{0:(###) ###-####}", 8005551212);
This will output "(800) 555-1212".
Although a regex may work even better, keep in mind the old programming quote:
Some people, when confronted with a problem, think “I know, I’ll use regular expressions.” Now they have two problems.
--Jamie Zawinski, in comp.lang.emacs
Actually, as far as I know, nginx would show an empty message and it wouldn't actually restart if the configuration is bad.
The only way to screw it up is by doing an nginx stop and then start again. It would succeed to stop, but fail to start.
Just subtract the current month from today's date, then add back your month number. Then use the datename function to give the full name all in 1 line.
print datename(month,dateadd(month,-month(getdate()) + 9,getdate()))
This will also work:
std::ostream& operator<< (std::ostream& o, unsigned char c)
{
return o<<(int)c;
}
int main()
{
unsigned char a = 06;
unsigned char b = 0xff;
std::cout << "a is " << std::hex << a <<"; b is " << std::hex << b << std::endl;
return 0;
}
You can use this simple 'inline' method to construct a string_list_type parameter (works in SQL Server 2014):
declare @p1 dbo.string_list_type
insert into @p1 values(N'myFirstString')
insert into @p1 values(N'mySecondString')
Example use when executing a stored proc:
exec MyStoredProc @MyParam=@p1
json_decode() is used to decode a json string to an array/data object. json_encode() creates a json string from an array or data. You are using the wrong function my friend, try json_encode();
Please refer to the official documentation:
https://www.chartjs.org/docs/latest/axes/styling.html#grid-line-configuration
Below code changes would hide the gridLines:
gridLines: {
display:false
}
No need for a regex here, if you just want to replace a piece of string by another: using str_replace()
should be more than enough :
$new = str_replace(' ', '%20', $your_string);
But, if you want a bit more than that, and you probably do, if you are working with URLs, you should take a look at the urlencode()
function.
Here's another solution that uses some of VBA's built in date functions and stores all the date data in an array for comparison, which may give better performance if you get a lot of data:
Public Sub MoveData(MonthNum As Integer, FromSheet As Worksheet, ToSheet As Worksheet)
Const DateCol = "A" 'column where dates are store
Const DestCol = "A" 'destination column where dates are stored. We use this column to find the last populated row in ToSheet
Const FirstRow = 2 'first row where date data is stored
'Copy range of values to Dates array
Dates = FromSheet.Range(DateCol & CStr(FirstRow) & ":" & DateCol & CStr(FromSheet.Range(DateCol & CStr(FromSheet.Rows.Count)).End(xlUp).Row)).Value
Dim i As Integer
For i = LBound(Dates) To UBound(Dates)
If IsDate(Dates(i, 1)) Then
If Month(CDate(Dates(i, 1))) = MonthNum Then
Dim CurrRow As Long
'get the current row number in the worksheet
CurrRow = FirstRow + i - 1
Dim DestRow As Long
'get the destination row
DestRow = ToSheet.Range(DestCol & CStr(ToSheet.Rows.Count)).End(xlUp).Row + 1
'copy row CurrRow in FromSheet to row DestRow in ToSheet
FromSheet.Range(CStr(CurrRow) & ":" & CStr(CurrRow)).Copy ToSheet.Range(DestCol & CStr(DestRow))
End If
End If
Next i
End Sub
There is an interesting alternative to the proposed solutions, that works with a single Dockerfile, require only a single call to docker build per conditional build and avoids bash.
Solution:
The following Dockerfile
solves that problem. Copy-paste it and try it yourself.
ARG my_arg
FROM centos:7 AS base
RUN echo "do stuff with the centos image"
FROM base AS branch-version-1
RUN echo "this is the stage that sets VAR=TRUE"
ENV VAR=TRUE
FROM base AS branch-version-2
RUN echo "this is the stage that sets VAR=FALSE"
ENV VAR=FALSE
FROM branch-version-${my_arg} AS final
RUN echo "VAR is equal to ${VAR}"
Explanation of Dockerfile:
We first get a base
image (centos:7
in your case) and put it into its own stage. The base
stage should contain things that you want to do before the condition. After that, we have two more stages, representing the branches of our condition: branch-version-1
and branch-version-2
. We build both of them. The final
stage than chooses one of these stages, based on my_arg
. Conditional Dockerfile. There you go.
Output when running:
(I abbreviated this a little...)
my_arg==2
docker build --build-arg my_arg=2 .
Step 1/12 : ARG my_arg
Step 2/12 : ARG ENV
Step 3/12 : FROM centos:7 AS base
Step 4/12 : RUN echo "do stuff with the centos image"
do stuff with the centos image
Step 5/12 : FROM base AS branch-version-1
Step 6/12 : RUN echo "this is the stage that sets VAR=TRUE"
this is the stage that sets VAR=TRUE
Step 7/12 : ENV VAR=TRUE
Step 8/12 : FROM base AS branch-version-2
Step 9/12 : RUN echo "this is the stage that sets VAR=FALSE"
this is the stage that sets VAR=FALSE
Step 10/12 : ENV VAR=FALSE
Step 11/12 : FROM branch-version-${my_arg}
Step 12/12 : RUN echo "VAR is equal to ${VAR}"
VAR is equal to FALSE
my_arg==1
docker build --build-arg my_arg=1 .
...
Step 11/12 : FROM branch-version-${my_arg}
Step 12/12 : RUN echo "VAR is equal to ${VAR}"
VAR is equal to TRUE
I've been messing around with this for about four hours and decided to share this with you.
You can submit a form by clicking a checkbox but the weird thing is that when checking for the submission in php, you would expect the form to be set when you either check or uncheck the checkbox. But this is not true. The form only gets set when you actually check the checkbox, if you uncheck it it won't be set. the word checked at the end of a checkbox input type will cause the checkbox to display checked, so if your field is checked it will have to reflect that like in the example below. When it gets unchecked the php updates the field state which will cause the word checked the disappear.
You HTML should look like this:
<form method='post' action='#'>
<input type='checkbox' name='checkbox' onChange='submit();'
<?php if($page->checkbox_state == 1) { echo 'checked' }; ?>>
</form>
and the php:
if(isset($_POST['checkbox'])) {
// the checkbox has just been checked
// save the new state of the checkbox somewhere
$page->checkbox_state == 1;
} else {
// the checkbox has just been unchecked
// if you have another form ont the page which uses than you should
// make sure that is not the one thats causing the page to handle in input
// otherwise the submission of the other form will uncheck your checkbox
// so this this line is optional:
if(!isset($_POST['submit'])) {
$page->checkbox_state == 0;
}
}
1: No difference. It is kept around to allow old S-code to continue to function. This is documented a "Note" in ?Math
2: Yes: But you already know it:
`^`(x,y)
#[1] 1024
In R the mathematical operators are really functions that the parser takes care of rearranging arguments and function names for you to simulate ordinary mathematical infix notation. Also documented at ?Math
.
Edit: Let me add that knowing how R handles infix operators (i.e. two argument functions) is very important in understanding the use of the foundational infix "[[" and "["-functions as (functional) second arguments to lapply
and sapply
:
> sapply( list( list(1,2,3), list(4,3,6) ), "[[", 1)
[1] 1 4
> firsts <- function(lis) sapply(lis, "[[", 1)
> firsts( list( list(1,2,3), list(4,3,6) ) )
[1] 1 4
I've built a function that deals with plotting FFT of real signals. The extra bonus in my function relative to the previous answers is that you get the actual amplitude of the signal.
Also, because of the assumption of a real signal, the FFT is symmetric, so we can plot only the positive side of the x-axis:
import matplotlib.pyplot as plt
import numpy as np
import warnings
def fftPlot(sig, dt=None, plot=True):
# Here it's assumes analytic signal (real signal...) - so only half of the axis is required
if dt is None:
dt = 1
t = np.arange(0, sig.shape[-1])
xLabel = 'samples'
else:
t = np.arange(0, sig.shape[-1]) * dt
xLabel = 'freq [Hz]'
if sig.shape[0] % 2 != 0:
warnings.warn("signal preferred to be even in size, autoFixing it...")
t = t[0:-1]
sig = sig[0:-1]
sigFFT = np.fft.fft(sig) / t.shape[0] # Divided by size t for coherent magnitude
freq = np.fft.fftfreq(t.shape[0], d=dt)
# Plot analytic signal - right half of frequence axis needed only...
firstNegInd = np.argmax(freq < 0)
freqAxisPos = freq[0:firstNegInd]
sigFFTPos = 2 * sigFFT[0:firstNegInd] # *2 because of magnitude of analytic signal
if plot:
plt.figure()
plt.plot(freqAxisPos, np.abs(sigFFTPos))
plt.xlabel(xLabel)
plt.ylabel('mag')
plt.title('Analytic FFT plot')
plt.show()
return sigFFTPos, freqAxisPos
if __name__ == "__main__":
dt = 1 / 1000
# Build a signal within Nyquist - the result will be the positive FFT with actual magnitude
f0 = 200 # [Hz]
t = np.arange(0, 1 + dt, dt)
sig = 1 * np.sin(2 * np.pi * f0 * t) + \
10 * np.sin(2 * np.pi * f0 / 2 * t) + \
3 * np.sin(2 * np.pi * f0 / 4 * t) +\
7.5 * np.sin(2 * np.pi * f0 / 5 * t)
# Result in frequencies
fftPlot(sig, dt=dt)
# Result in samples (if the frequencies axis is unknown)
fftPlot(sig)
A MySQL answer adapted slightly from the MSDN example for MySqlDataReader.GetValues:
//assumes you've already created a connection, opened it,
//and executed a query to a reader
while(reader.Read())
{
Object[] values = new Object[reader.FieldCount];
int fieldCount = reader.GetValues(values);
Console.WriteLine("\nreader.GetValues retrieved {0} columns.", fieldCount);
for (int i = 0; i < fieldCount; i++)
Console.WriteLine(values[i]);
}
Using MySqlDataReader.FieldCount
will allow you to retrieve the number of columns in the row you've queried.
open
is a new access level in Swift 3, introduced with the implementation
of
It is available with the Swift 3 snapshot from August 7, 2016, and with Xcode 8 beta 6.
In short:
open
class is accessible and subclassable outside of the
defining module. An open
class member is accessible and
overridable outside of the defining module.public
class is accessible but not subclassable outside of the
defining module. A public
class member is accessible but
not overridable outside of the defining module.So open
is what public
used to be in previous
Swift releases and the access of public
has been restricted.
Or, as Chris Lattner puts it in
SE-0177: Allow distinguishing between public access and public overridability:
“open” is now simply “more public than public”, providing a very simple and clean model.
In your example, open var hashValue
is a property which is accessible and can be overridden in NSObject
subclasses.
For more examples and details, have a look at SE-0117.
The other option is that if you have a filter that you always want applied, to add a custom manager on the model in question which always applies the filter to the results returned.
A good example of this is a Event
model, where for 90% of the queries you do on the model you are going to want something like Event.objects.filter(date__gte=now)
, i.e. you're normally interested in Events
that are upcoming. This would look like:
class EventManager(models.Manager):
def get_query_set(self):
now = datetime.now()
return super(EventManager,self).get_query_set().filter(date__gte=now)
And in the model:
class Event(models.Model):
...
objects = EventManager()
But again, this applies the same filter against all default queries done on the Event
model and so isn't as flexible some of the techniques described above.
Look at how the built-in containers do it. dict
and list
and so on contain heterogeneous elements of whatever types you like. If you define, say, an insert(val)
function for your tree, it will at some point do something like node.value = val
and Python will take care of the rest.
Take a look at the various test operators (this is for the test command itself, but the built-in BASH and TCSH tests are more or less the same).
You'll notice that -x FILE
says FILE exists and execute (or search) permission is granted.
BASH, Bourne, Ksh, Zsh Script
if [[ -x "$file" ]]
then
echo "File '$file' is executable"
else
echo "File '$file' is not executable or found"
fi
TCSH or CSH Script:
if ( -x "$file" ) then
echo "File '$file' is executable"
else
echo "File '$file' is not executable or found"
endif
To determine the type of file it is, try the file command. You can parse the output to see exactly what type of file it is. Word 'o Warning: Sometimes file
will return more than one line. Here's what happens on my Mac:
$ file /bin/ls
/bin/ls: Mach-O universal binary with 2 architectures
/bin/ls (for architecture x86_64): Mach-O 64-bit executable x86_64
/bin/ls (for architecture i386): Mach-O executable i386
The file
command returns different output depending upon the OS. However, the word executable
will be in executable programs, and usually the architecture will appear too.
Compare the above to what I get on my Linux box:
$ file /bin/ls
/bin/ls: ELF 64-bit LSB executable, AMD x86-64, version 1 (SYSV), for GNU/Linux 2.6.9, dynamically linked (uses shared libs), stripped
And a Solaris box:
$ file /bin/ls
/bin/ls: ELF 32-bit MSB executable SPARC Version 1, dynamically linked, stripped
In all three, you'll see the word executable
and the architecture (x86-64
, i386
, or SPARC
with 32-bit
).
Thank you very much, that seems the way to go. Before I mark this as my answer, can you please guide me as to what kind of script shell check I would have to perform (ie, what kind of parsing) on 'file' in order to check whether I can execute a program ? If such a test is too difficult to make on a general basis, I would at least like to check whether it's a linux executable or osX (Mach-O)
Off the top of my head, you could do something like this in BASH:
if [ -x "$file" ] && file "$file" | grep -q "Mach-O"
then
echo "This is an executable Mac file"
elif [ -x "$file" ] && file "$file" | grep -q "GNU/Linux"
then
echo "This is an executable Linux File"
elif [ -x "$file" ] && file "$file" | grep q "shell script"
then
echo "This is an executable Shell Script"
elif [ -x "$file" ]
then
echo "This file is merely marked executable, but what type is a mystery"
else
echo "This file isn't even marked as being executable"
fi
Basically, I'm running the test, then if that is successful, I do a grep on the output of the file
command. The grep -q
means don't print any output, but use the exit code of grep to see if I found the string. If your system doesn't take grep -q
, you can try grep "regex" > /dev/null 2>&1
.
Again, the output of the file
command may vary from system to system, so you'll have to verify that these will work on your system. Also, I'm checking the executable bit. If a file is a binary executable, but the executable bit isn't on, I'll say it's not executable. This may not be what you want.
For gradle
compile('org.xxx:xxx:1.0-SNAPSHOT'){
exclude module: 'log4j'
exclude module: 'slf4j-log4j12'
}
Marshaling and serialization are loosely synonymous in the context of remote procedure call, but semantically different as a matter of intent.
In particular, marshaling is about getting parameters from here to there, while serialization is about copying structured data to or from a primitive form such as a byte stream. In this sense, serialization is one means to perform marshaling, usually implementing pass-by-value semantics.
It is also possible for an object to be marshaled by reference, in which case the data "on the wire" is simply location information for the original object. However, such an object may still be amenable to value serialization.
As @Bill mentions, there may be additional metadata such as code base location or even object implementation code.
I hope my script help you.
<i class="mostrar-producto">mostrar...</i>
<div class="producto" style="display:none;position: absolute;">Producto</div>
My script
<script>
$(".mostrar-producto").mouseover(function(){
$(".producto").fadeIn();
});
$(".mostrar-producto").mouseleave(function(){
$(".producto").fadeOut();
});
</script>
If you want to force the whiskers to extend to the max and min values, you can tweak the coef
argument. Default value for coef
is 1.5 (i.e. default length of the whiskers is 1.5 times the IQR).
# Load package and create a dummy data frame with outliers
#(using example from Ramnath's answer above)
library(ggplot2)
df = data.frame(y = c(-100, rnorm(100), 100))
# create boxplot that includes outliers
p0 = ggplot(df, aes(y = y)) + geom_boxplot(aes(x = factor(1)))
# create boxplot where whiskers extend to max and min values
p1 = ggplot(df, aes(y = y)) + geom_boxplot(aes(x = factor(1)), coef = 500)
One option is to put the character literally in your script, e.g.:
const omega = 'O';
This requires that you let the browser know the correct source encoding, see Unicode in JavaScript
However, if you can't or don't want to do this (e.g. because the character is too exotic and can't be expected to be available in the code editor font), the safest option may be to use new-style string escape or String.fromCodePoint
:
const omega = '\u{3a9}';
// or:
const omega = String.fromCodePoint(0x3a9);
This is not restricted to UTF-16 but works for all unicode code points. In comparison, the other approaches mentioned here have the following downsides:
const omega = 'Ω';
): only work when rendered unescaped in an HTML elementconst omega = '\u03A9';
): restricted to UTF-16String.fromCharCode
: restricted to UTF-16Just use window.open()
:
window.open('Prosjektplan.pdf')
Anyway, what guys are saying on comments is true. You better use <a target="_blank">
instead of click events.
In xfce (e.g. on Arch Linux) you can change the parameter TerminalEmulator
:
TerminalEmulator=xfce4-terminal
to
TerminalEmulator=custom-TerminalEmulator
The next time you want to open a terminal window, xfce will ask you to choose an emulator. You can just pick /usr/bin/terminator
.
/etc/xdg/xfce4/helpers.rc
/home/USER/.config/xfce4