List<course> = (from c in obj.tbCourses
select
new course(c)).toList();
You can convert the entity object to a list directly on the call. There are methods to converting it to different data struct (list, array, dictionary, lookup, or string)
I had the same problem. Mysql didn't start.
worked for me.
All you have to do is to delete the "0" in the cells that contain just that and try again. That should work.
Just a tip: using http_response_code is much easier to remember than writing the full header:
http_response_code(301);
header('Location: /option-a');
exit;
It should be understood that from a performance standpoint there are no differences between @temp tables and #temp tables that favor variables. They reside in the same place (tempdb) and are implemented the same way. All the differences appear in additional features. See this amazingly complete writeup: https://dba.stackexchange.com/questions/16385/whats-the-difference-between-a-temp-table-and-table-variable-in-sql-server/16386#16386
Although there are cases where a temp table can't be used such as in table or scalar functions, for most other cases prior to v2016 (where even filtered indexes can be added to a table variable) you can simply use a #temp table.
The drawback to using named indexes (or constraints) in tempdb is that the names can then clash. Not just theoretically with other procedures but often quite easily with other instances of the procedure itself which would try to put the same index on its copy of the #temp table.
To avoid name clashes, something like this usually works:
declare @cmd varchar(500)='CREATE NONCLUSTERED INDEX [ix_temp'+cast(newid() as varchar(40))+'] ON #temp (NonUniqueIndexNeeded);';
exec (@cmd);
This insures the name is always unique even between simultaneous executions of the same procedure.
Great solution by @hardsetting, But I made some improvements to make it work with Safari(5.1.7) in windows
.image-upload > input {_x000D_
visibility:hidden;_x000D_
width:0;_x000D_
height:0_x000D_
}
_x000D_
<div class="image-upload">_x000D_
<label for="file-input">_x000D_
<img src="https://placehold.it/100/000000/ffffff?text=UPLOAD" style="pointer-events: none"/>_x000D_
</label>_x000D_
_x000D_
<input id="file-input" type="file" />_x000D_
</div>
_x000D_
I have used visibility: hidden, width:0
instead of display: none
for safari issue and added pointer-events: none
in img
tag to make it working if input file type tag is in FORM tag.
Seems working for me in all major browsers.
Hope it helps someone.
Special thanks to the answer here for more-or-less the same question.
For me, all I needed was setlocale(LC_ALL, "en_US.UTF-8");
Then, I could use even raw wchar_t
characters.
from datetime import datetime
startTime = datetime.now()
#do something
#Python 2:
print datetime.now() - startTime
#Python 3:
print(datetime.now() - startTime)
Not in PHP.
phpinfo(32)
contains everything PHP able to know about particular client, and there is no [windows] computer name
Consider the following:
class Bad(object):
def __eq__(self, other):
return True
c = Bad()
c is None # False, equivalent to id(c) == id(None)
c == None # True, equivalent to c.__eq__(None)
I get this error when running git stash
. Fixed with:
git config --global user.email {emailaddress}
git config --global user.name {name}
Try to see if SQL snap-ins are present:
get-pssnapin -Registered
Name : SqlServerCmdletSnapin100
PSVersion : 2.0
Description : This is a PowerShell snap-in that includes various SQL Server cmdlets.
Name : SqlServerProviderSnapin100
PSVersion : 2.0
Description : SQL Server Provider
If so
Add-PSSnapin SqlServerCmdletSnapin100 # here lives Invoke-SqlCmd
Add-PSSnapin SqlServerProviderSnapin100
then you can do something like this:
invoke-sqlcmd -inputfile "c:\mysqlfile.sql" -serverinstance "servername\serverinstance" -database "mydatabase" # the parameter -database can be omitted based on what your sql script does.
Two things you might try:
Implement a try/parse model:
public class Organisation {
public string Name { get; set; }
[JsonConverter(typeof(RichDudeConverter))]
public IPerson Owner { get; set; }
}
public interface IPerson {
string Name { get; set; }
}
public class Tycoon : IPerson {
public string Name { get; set; }
}
public class Magnate : IPerson {
public string Name { get; set; }
public string IndustryName { get; set; }
}
public class Heir: IPerson {
public string Name { get; set; }
public IPerson Benefactor { get; set; }
}
public class RichDudeConverter : JsonConverter
{
public override bool CanConvert(Type objectType)
{
return (objectType == typeof(IPerson));
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
// pseudo-code
object richDude = serializer.Deserialize<Heir>(reader);
if (richDude == null)
{
richDude = serializer.Deserialize<Magnate>(reader);
}
if (richDude == null)
{
richDude = serializer.Deserialize<Tycoon>(reader);
}
return richDude;
}
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
// Left as an exercise to the reader :)
throw new NotImplementedException();
}
}
Or, if you can do so in your object model, implement a concrete base class between IPerson and your leaf objects, and deserialize to it.
The first can potentially fail at runtime, the second requires changes to your object model and homogenizes the output to the lowest common denominator.
Here is the solution total html with php and database connections
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>database connections</title>
</head>
<body>
<?php
$username = "database-username";
$password = "database-password";
$host = "localhost";
$connector = mysql_connect($host,$username,$password)
or die("Unable to connect");
echo "Connections are made successfully::";
$selected = mysql_select_db("test_db", $connector)
or die("Unable to connect");
//execute the SQL query and return records
$result = mysql_query("SELECT * FROM table_one ");
?>
<table border="2" style= "background-color: #84ed86; color: #761a9b; margin: 0 auto;" >
<thead>
<tr>
<th>Employee_id</th>
<th>Employee_Name</th>
<th>Employee_dob</th>
<th>Employee_Adress</th>
<th>Employee_dept</th>
<td>Employee_salary</td>
</tr>
</thead>
<tbody>
<?php
while( $row = mysql_fetch_assoc( $result ) ){
echo
"<tr>
<td>{$row\['employee_id'\]}</td>
<td>{$row\['employee_name'\]}</td>
<td>{$row\['employee_dob'\]}</td>
<td>{$row\['employee_addr'\]}</td>
<td>{$row\['employee_dept'\]}</td>
<td>{$row\['employee_sal'\]}</td>
</tr>\n";
}
?>
</tbody>
</table>
<?php mysql_close($connector); ?>
</body>
</html>
before stream.copyto, you must reset stream.position to 0; then it works fine.
Two things you need to do, if you want to make a custom button design.
1st is: create a xml resource file in drawable folder (Example: btn_shape_rectangle.xml) then copy and paste the code there.
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:padding="16dp"
android:shape="rectangle">
<solid
android:color="#fff"/>
<stroke
android:width="1dp"
android:color="#000000"
/>
<corners android:radius="10dp" />
</shape>
2nd is go to your layout button where you want to implement this design. just link up it. Example: android:background="@drawable/btn_shape_rectangle"
You can change shape color radius what design you want can do.
Hope it will works and help you. Happy Coding
As mentioned by Alejandro Corredor it is a simple scope error. The subscribe
is run asynchronously and the open
must be placed in that context, so that the data finished loading when we trigger the download.
That said, there are two ways of doing it. As the docs recommend the service takes care of getting and mapping the data:
//On the service:
downloadfile(runname: string, type: string){
var headers = new Headers();
headers.append('responseType', 'arraybuffer');
return this.authHttp.get( this.files_api + this.title +"/"+ runname + "/?file="+ type)
.map(res => new Blob([res],{ type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' }))
.catch(this.logAndPassOn);
}
Then, on the component we just subscribe and deal with the mapped data. There are two possibilities. The first, as suggested in the original post, but needs a small correction as noted by Alejandro:
//On the component
downloadfile(type: string){
this.pservice.downloadfile(this.rundata.name, type)
.subscribe(data => window.open(window.URL.createObjectURL(data)),
error => console.log("Error downloading the file."),
() => console.log('Completed file download.'));
}
The second way would be to use FileReader. The logic is the same but we can explicitly wait for FileReader to load the data, avoiding the nesting, and solving the async problem.
//On the component using FileReader
downloadfile(type: string){
var reader = new FileReader();
this.pservice.downloadfile(this.rundata.name, type)
.subscribe(res => reader.readAsDataURL(res),
error => console.log("Error downloading the file."),
() => console.log('Completed file download.'));
reader.onloadend = function (e) {
window.open(reader.result, 'Excel', 'width=20,height=10,toolbar=0,menubar=0,scrollbars=no');
}
}
Note: I am trying to download an Excel file, and even though the download is triggered (so this answers the question), the file is corrupt. See the answer to this post for avoiding the corrupt file.
DataFrame.append
does not modify the DataFrame in place. You need to do df = df.append(...)
if you want to reassign it back to the original variable.
This kind of query should work - after rewriting with explicit JOIN
syntax:
SELECT something
FROM master parent
JOIN master child ON child.parent_id = parent.id
LEFT JOIN second parentdata ON parentdata.id = parent.secondary_id
LEFT JOIN second childdata ON childdata.id = child.secondary_id
WHERE parent.parent_id = 'rootID'
The tripping wire here is that an explicit JOIN
binds before "old style" CROSS JOIN
with comma (,
). I quote the manual here:
In any case
JOIN
binds more tightly than the commas separatingFROM
-list items.
After rewriting the first, all joins are applied left-to-right (logically - Postgres is free to rearrange tables in the query plan otherwise) and it works.
Just to make my point, this would work, too:
SELECT something
FROM master parent
LEFT JOIN second parentdata ON parentdata.id = parent.secondary_id
, master child
LEFT JOIN second childdata ON childdata.id = child.secondary_id
WHERE child.parent_id = parent.id
AND parent.parent_id = 'rootID'
But explicit JOIN
syntax is generally preferable, as your case illustrates once again.
And be aware that multiple (LEFT
) JOIN
can multiply rows:
I encountered the same problem. This solution allows me to keep using the generic login view:
urlpatterns += patterns('django.views.generic.simple',
(r'^accounts/profile/$', 'redirect_to', {'url': 'generic_account_url'}),
)
I had same problem, the solution was so easy
Right click on solotion install Microsoft.ASP.NET.WebApi from "Manage Nuget Package for Sulotion"
boom that's it ;)
Try following from Removing duplicates from an Array(simple):
Array.prototype.removeDuplicates = function (){
var temp=new Array();
this.sort();
for(i=0;i<this.length;i++){
if(this[i]==this[i+1]) {continue}
temp[temp.length]=this[i];
}
return temp;
}
Edit:
This code doesn't need sort:
Array.prototype.removeDuplicates = function (){
var temp=new Array();
label:for(i=0;i<this.length;i++){
for(var j=0; j<temp.length;j++ ){//check duplicates
if(temp[j]==this[i])//skip if already present
continue label;
}
temp[temp.length] = this[i];
}
return temp;
}
(But not a tested code!)
Unique is a keyword used in the Create Table() directive to denote that a field will contain unique data, usually used for natural keys, foreign keys etc.
For example:
Create Table Employee(
Emp_PKey Int Identity(1, 1) Constraint PK_Employee_Emp_PKey Primary Key,
Emp_SSN Numeric Not Null Unique,
Emp_FName varchar(16),
Emp_LName varchar(16)
)
i.e. Someone's Social Security Number would likely be a unique field in your table, but not necessarily the primary key.
Distinct is used in the Select statement to notify the query that you only want the unique items returned when a field holds data that may not be unique.
Select Distinct Emp_LName
From Employee
You may have many employees with the same last name, but you only want each different last name.
Obviously if the field you are querying holds unique data, then the Distinct keyword becomes superfluous.
ProcessBuilder is the Java 5/6 way to run external processes.
My Problem was from init.py . i made an app and wanted to do this :
from MY_APP import myfunc
instead of :
from MY_APP.views import myfunc
when i rolled back my changes to these parts . everything worked just fine.
I use SimplePie to parse a Google Reader feed and it works pretty well and has a decent feature set.
Of course, I haven't tested it with non-well-formed RSS / Atom feeds so I don't know how it copes with those, I'm assuming Google's are fairly standards compliant! :)
In XML there can be only one root element - you have two - heading
and song
.
If you restructure to something like:
<?xml version="1.0" encoding="UTF-8"?>
<song>
<heading>
The Twelve Days of Christmas
</heading>
....
</song>
The error about well-formed XML on the root level should disappear (though there may be other issues).
Or you can do it in the XML file :
In the RadioGroup using : android:checkedButton="id_button_to_check"
or in the RadioButton : android:checked="true"
If you have access to Excel, look in the "Statistical Functions" section of the Function Reference within Help. For straight-line best-fit, you need SLOPE and INTERCEPT and the equations are right there.
Oh, hang on, they're also defined online here: http://office.microsoft.com/en-us/excel/HP052092641033.aspx for SLOPE, and there's a link to INTERCEPT. OF course, that assumes MS don't move the page, in which case try Googling for something like "SLOPE INTERCEPT EQUATION Excel site:microsoft.com" - the link given turned out third just now.
Actually, to me it happened in opposite way to another answers.
I did install the latest .NET Core SDK before the issue appeared (3.0.0-preview2 in my case) having not the latest version of Visual Studio (not sure if that would make any difference).
So, the solution was just to uninstall that latest .NET Core SDK. (This is not perfect if you need it, so you might consider Visual Studio upgrade to the latest one, but at least that solved ongoing issue).
Basically this happens when the assemblies you're referencing have "Copy Local" set to "True", meaning that a copy of the DLL is placed in the bin folder along with your exe.
Since Visual Studio will copy all of the dependencies of a referenced assembly as well, it's possible to end up with two different builds of the same assembly being referred to. This is more likely to happen if your projects are in separate solutions, and can therefore be compiled separately.
The way I've gotten around it is to set Copy Local to False for references in assembly projects. Only do it for executables/web applications where you need the assembly for the finished product to run.
Hope that makes sense!
Applying the recursive function on numpy arrays will be faster than the current answer.
df = pd.DataFrame(np.repeat(np.arange(2, 6),3).reshape(4,3), columns=['A', 'B', 'D'])
new = [df.D.values[0]]
for i in range(1, len(df.index)):
new.append(new[i-1]*df.A.values[i]+df.B.values[i])
df['C'] = new
Output
A B D C
0 1 1 1 1
1 2 2 2 4
2 3 3 3 15
3 4 4 4 64
4 5 5 5 325
Using is_numeric or intval is likely the best way to validate a number here, but to answer your question you could try using preg_replace instead. This example removes all non-numeric characters:
$output = preg_replace( '/[^0-9]/', '', $string );
I'm not sure I believe your symptoms:
jre
command isn't found, then running jre -cp app.jar
should give the same errorI'd expect you to see this error if you run:
java -jar app.jar
The Main-Class header needs to be in the manifest for the JAR file - this is metadata about things like other required libraries. See the Sun documentation for how to create an appropriate manifest. Basically you need to create a text file which includes a line like this:
Main-Class: MainClass
Then run
jar cfm app.jar manifest.txt *.class
Python can use all memory available to its environment. My simple "memory test" crashes on ActiveState Python 2.6 after using about
1959167 [MiB]
On jython 2.5 it crashes earlier:
239000 [MiB]
probably I can configure Jython to use more memory (it uses limits from JVM)
Test app:
import sys
sl = []
i = 0
# some magic 1024 - overhead of string object
fill_size = 1024
if sys.version.startswith('2.7'):
fill_size = 1003
if sys.version.startswith('3'):
fill_size = 497
print(fill_size)
MiB = 0
while True:
s = str(i).zfill(fill_size)
sl.append(s)
if i == 0:
try:
sys.stderr.write('size of one string %d\n' % (sys.getsizeof(s)))
except AttributeError:
pass
i += 1
if i % 1024 == 0:
MiB += 1
if MiB % 25 == 0:
sys.stderr.write('%d [MiB]\n' % (MiB))
In your app you read whole file at once. For such big files you should read the line by line.
public void methodOnClick(View view){
Button.setBackgroundResource(R.drawable.nameImage);
}
i recommend use button inside LinearLayout for adjust to size of Linear.
yum update
helped me out. After I had
wget: symbol lookup error: wget: undefined symbol: psl_latest
Demo http://jsfiddle.net/H37cb/
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js" /></script>
<script type="text/javascript">
$(document).ready(function(){
$('input[name="all"],input[name="title"]').bind('click', function(){
var status = $(this).is(':checked');
$('input[type="checkbox"]', $(this).parent('li')).attr('checked', status);
});
});
</script>
<div id="wrapper">
<li style="margin-top: 20px">
<input type="checkbox" name="all" id="all" /> <label for='all'>All</label>
<ul>
<li><input type="checkbox" name="title" id="title_1" /> <label for="title_1"><strong>Title 01</strong></label>
<ul>
<li><input type="checkbox" name="selected[]" id="box_1" value="1" /> <label for="box_1">Sub Title 01</label></li>
<li><input type="checkbox" name="selected[]" id="box_2" value="2" /> <label for="box_2">Sub Title 02</label></li>
<li><input type="checkbox" name="selected[]" id="box_3" value="3" /> <label for="box_3">Sub Title 03</label></li>
<li><input type="checkbox" name="selected[]" id="box_4" value="4" /> <label for="box_4">Sub Title 04</label></li>
</ul>
</li>
</ul>
<ul>
<li><input type="checkbox" name="title" id="title_2" /> <label for="title_2"><strong>Title 02</strong></label>
<ul>
<li><input type="checkbox" name="selected[]" id="box_5" value="5" /> <label for="box_5">Sub Title 05</label></li>
<li><input type="checkbox" name="selected[]" id="box_6" value="6" /> <label for="box_6">Sub Title 06</label></li>
<li><input type="checkbox" name="selected[]" id="box_7" value="7" /> <label for="box_7">Sub Title 07</label></li>
</ul>
</li>
</ul>
</li>
</div>
This is not quite the answer to this question, but it may be useful for some: as @SWeko said, thanks to covariance and contravariance, List<X>
can not be cast in List<Y>
, but List<X>
can be cast into IEnumerable<Y>
, and even with implicit cast.
Example:
List<Y> ListOfY = new List<Y>();
List<X> ListOfX = (List<X>)ListOfY; // Compile error
but
List<Y> ListOfY = new List<Y>();
IEnumerable<X> EnumerableOfX = ListOfY; // No issue
The big advantage is that it does not create a new list in memory.
Using jquery
var favicon = $("link[rel='shortcut icon']").attr("href") ||
$("link[rel='icon']").attr("href") || "";
Git now ships with a subcommand 'git request-pull' [-p] <start> <url> [<end>]
You can see the docs here
You may find this useful but it is not exactly the same as GitHub's feature.
you can wrap the content of the <tbody>
in a scrollable <div>
:
html
....
<tbody>
<tr>
<td colspan="2">
<div class="scrollit">
<table>
<tr>
<td>January</td>
<td>$100</td>
</tr>
<tr>
<td>February</td>
<td>$80</td>
</tr>
<tr>
<td>January</td>
<td>$100</td>
</tr>
<tr>
<td>February</td>
<td>$80</td>
</tr>
...
css
.scrollit {
overflow:scroll;
height:100px;
}
see my jsfiddle, forked from yours: http://jsfiddle.net/VTNax/2/
Although you can gzip using a reverse proxy such as nginx, lighttpd or in varnish. It can be beneficial to have most http optimisations such as gzipping at the application level so that you can have a much granular approach on what asset's to gzip.
I have actually created my own gzip module for expressjs / connect called gzippo https://github.com/tomgco/gzippo although new it does do the job. Plus it uses node-compress instead of spawning the unix gzip command.
UPDATE: Keep in mind, at the time the answer was initially written in 2010, the bellow function toFixed() worked slightly different. toFixed() seems to do some rounding now, but not in the strictly mathematical manner. So be careful with it. Do your tests... The method described bellow will do rounding well, as mathematician would expect.
toFixed()
- method converts a number into a string, keeping a specified number of decimals. It does not actually rounds up a number, it truncates the number.Math.round(n)
- rounds a number to the nearest integer. Thus turning:0.5 -> 1; 0.05 -> 0
so if you want to round, say number 0.55555, only to the second decimal place; you can do the following(this is step-by-step concept):
0.55555 * 100
= 55.555 Math.Round(55.555)
-> 56.00056.000 / 100
= 0.56000 (0.56000).toFixed(2)
-> 0.56and this is the code:
(Math.round(number * 100)/100).toFixed(2);
For a multidimensional array in PHP4 you can use the following addition to the code posted by Udo G:
function js_str($s) {
return '"'.addcslashes($s, "\0..\37\"\\").'"';
}
function js_array($array, $keys_array) {
foreach ($array as $key => $value) {
$new_keys_array = $keys_array;
$new_keys_array[] = $key;
if(is_array($value)) {
echo 'javascript_array';
foreach($new_keys_array as $key) {
echo '["'.$key.'"]';
}
echo ' = new Array();';
js_array($value, $new_keys_array);
} else {
echo 'javascript_array';
foreach($new_keys_array as $key) {
echo '["'.$key.'"]';
}
echo ' = '.js_str($value).";";
}
}
}
echo 'var javascript_array = new Array();';
js_array($php_array, array());
The viewBox
isn't the height of the container, it's the size of your drawing. Define your viewBox
to be 100 units in width, then define your rect
to be 10 units. After that, however large you scale the SVG, the rect
will be 10% the width of the image.
int c;
String raw = "";
do {
c = inputstream.read();
raw+=(char)c;
} while(inputstream.available()>0);
InputStream.available() shows the available bytes only after one byte is read, hence do .. while
This is how a snapshot looks like for a repository and in this case is not enabled, which means that the repository referred in here is stable and there's no need for updates.
<project>
...
<repositories>
<repository>
<id>lds-main</id>
<name>LDS Main Repo</name>
<url>http://code.lds.org/nexus/content/groups/main-repo</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
</project>
Another case would be for:
<snapshots>
<enabled>true</enabled>
</snapshots>
which means that Maven will look for updates for this repository. You can also specify an interval for the updates with tag.
sectionLabel.font = [UIFont fontWithName:@"TrebuchetMS-Bold" size:18];
There is a list of font names that you can set in place of 'fontWithName' attribute.The link is here
Another option is to split off the textarea in the Site.css as follows:
/* Set width on the form input elements since they're 100% wide by default */
input,
select {
max-width: 280px;
}
textarea {
/*max-width: 280px;*/
max-width: 500px;
width: 280px;
height: 200px;
}
also (in my MVC 5) add ref to textarea:
@Html.TextAreaFor(model => ................... @class = "form-control", @id="textarea"............
It worked for me
The easiest way to do it is to link the CSV-file into the Access database as a table. Then you can work on this table as if it was an ordinary access table, for instance by creating an appropriate query based on this table that returns exactly what you want.
You can link the table either manually or with VBA like this
DoCmd.TransferText TransferType:=acLinkDelim, TableName:="tblImport", _
FileName:="C:\MyData.csv", HasFieldNames:=true
Dim db As DAO.Database
' Re-link the CSV Table
Set db = CurrentDb
On Error Resume Next: db.TableDefs.Delete "tblImport": On Error GoTo 0
db.TableDefs.Refresh
DoCmd.TransferText TransferType:=acLinkDelim, TableName:="tblImport", _
FileName:="C:\MyData.csv", HasFieldNames:=true
db.TableDefs.Refresh
' Perform the import
db.Execute "INSERT INTO someTable SELECT col1, col2, ... FROM tblImport " _
& "WHERE NOT F1 IN ('A1', 'A2', 'A3')"
db.Close: Set db = Nothing
There are two points to considerate.
1) This source code worked for me:
private static string Execute(string credentials, string scriptDir, string scriptFilename)
{
Process process = new Process();
process.StartInfo.UseShellExecute = false;
process.StartInfo.WorkingDirectory = scriptDir;
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.FileName = "sqlplus";
process.StartInfo.Arguments = string.Format("{0} @{1}", credentials, scriptFilename);
process.StartInfo.CreateNoWindow = true;
process.Start();
string output = process.StandardOutput.ReadToEnd();
process.WaitForExit();
return output;
}
I set the working directory to the script directory, so that sub scripts within the script also work.
Call it e.g. as Execute("usr/pwd@service", "c:\myscripts", "script.sql")
2) You have to finalize your SQL script with the statement EXIT;
If you are connected via TFS, open your project.csproj.user file and check for
<UseIISExpress>false</UseIISExpress>
and change it to true.
<UseIISExpress>true</UseIISExpress>
why has no answer I've seen mentioned anything about the unwrap
method? Or, even easier, the get_text
method
http://www.crummy.com/software/BeautifulSoup/bs4/doc/#unwrap http://www.crummy.com/software/BeautifulSoup/bs4/doc/#get-text
I think this thread was quite old. I just mention another case, that onSaveInstanceState()
will also be called, is when you call Activity.moveTaskToBack(boolean nonRootActivity)
.
You could sort the array first (Ascending by default) and then apply np.flip() (https://docs.scipy.org/doc/numpy/reference/generated/numpy.flip.html)
FYI It works with datetime objects as well.
Example:
x = np.array([2,3,1,0])
x_sort_asc=np.sort(x)
print(x_sort_asc)
>>> array([0, 1, 2, 3])
x_sort_desc=np.flip(x_sort_asc)
print(x_sort_desc)
>>> array([3,2,1,0])
Since the author did not specify whether they require a solution for Java versions that have been EoL'd (by both Sun and IBM, and these are technically the most widespread JVMs), and due to the fact that most people seem to have answered the author's question before it was specified that it is a text (non-binary) file, I have decided to provide my answer.
First of all, Java 6 has generally reached end of life, and since the author did not specify he needs legacy compatibility, I guess it automatically means Java 7 or above (Java 7 is not yet EoL'd by IBM). So, we can look right at the file I/O tutorial: https://docs.oracle.com/javase/tutorial/essential/io/legacy.html
Prior to the Java SE 7 release, the java.io.File class was the mechanism used for file I/O, but it had several drawbacks.
- Many methods didn't throw exceptions when they failed, so it was impossible to obtain a useful error message. For example, if a file deletion failed, the program would receive a "delete fail" but wouldn't know if it was because the file didn't exist, the user didn't have permissions, or there was some other problem.
- The rename method didn't work consistently across platforms.
- There was no real support for symbolic links.
- More support for metadata was desired, such as file permissions, file owner, and other security attributes. Accessing file metadata was inefficient.
- Many of the File methods didn't scale. Requesting a large directory listing over a server could result in a hang. Large directories could also cause memory resource problems, resulting in a denial of service.
- It was not possible to write reliable code that could recursively walk a file tree and respond appropriately if there were circular symbolic links.
Oh well, that rules out java.io.File. If a file cannot be written/appended, you may not be able to even know why.
We can continue looking at the tutorial: https://docs.oracle.com/javase/tutorial/essential/io/file.html#common
If you have all lines you will write (append) to the text file in advance, the recommended approach is https://docs.oracle.com/javase/8/docs/api/java/nio/file/Files.html#write-java.nio.file.Path-java.lang.Iterable-java.nio.charset.Charset-java.nio.file.OpenOption...-
Here's an example (simplified):
Path file = ...;
List<String> linesInMemory = ...;
Files.write(file, linesInMemory, StandardCharsets.UTF_8);
Another example (append):
Path file = ...;
List<String> linesInMemory = ...;
Files.write(file, linesInMemory, Charset.forName("desired charset"), StandardOpenOption.CREATE, StandardOpenOption.APPEND, StandardOpenOption.WRITE);
If you want to write file content as you go: https://docs.oracle.com/javase/8/docs/api/java/nio/file/Files.html#newBufferedWriter-java.nio.file.Path-java.nio.charset.Charset-java.nio.file.OpenOption...-
Simplified example (Java 8 or up):
Path file = ...;
try (BufferedWriter writer = Files.newBufferedWriter(file)) {
writer.append("Zero header: ").append('0').write("\r\n");
[...]
}
Another example (append):
Path file = ...;
try (BufferedWriter writer = Files.newBufferedWriter(file, Charset.forName("desired charset"), StandardOpenOption.CREATE, StandardOpenOption.APPEND, StandardOpenOption.WRITE)) {
writer.write("----------");
[...]
}
These methods require minimal effort on the author's part and should be preferred to all others when writing to [text] files.
I didn't really like any of the solutions here for my particular use case, so I figured I'd post what I did because I didn't see it here.
I simply wanted to use a controller more like a directive, within a ng-repeat loop:
<div ng-repeat="objParameter in [{id:'a'},{id:'b'},{id:'c'}]">
<div ng-controller="DirectiveLikeController as ctrl"></div>
</div>
Now, in order to access the objParameter
on creation within each DirectiveLikeController (or to get the up-to-date objParameter at ANY time), all I need to do is inject $scope and call $scope.$eval('objParameter')
:
var app = angular.module('myapp', []);
app.controller('DirectiveLikeController',['$scope'], function($scope) {
//print 'a' for the 1st instance, 'b' for the 2nd instance, and 'c' for the 3rd.
console.log($scope.$eval('objParameter').id);
});
The only real downside that I see is that it requires the parent controller to know that the parameter is named objParameter
.
This worked for me (posting since it is not in answers but in a comment)
$("#textBox").focus().select();
with .Equals, you also gain the StringComparison options. very handy for ignoring case and other things.
btw, this will evaluate to false
string a = "myString";
string b = "myString";
return a==b
Since == compares the values of a and b (which are pointers) this will only evaluate to true if the pointers point to the same object in memory. .Equals dereferences the pointers and compares the values stored at the pointers. a.Equals(b) would be true here.
and if you change b to:
b = "MYSTRING";
then a.Equals(b) is false, but
a.Equals(b, StringComparison.OrdinalIgnoreCase)
would be true
a.CompareTo(b) calls the string's CompareTo function which compares the values at the pointers and returns <0 if the value stored at a is less than the value stored at b, returns 0 if a.Equals(b) is true, and >0 otherwise. However, this is case sensitive, I think there are possibly options for CompareTo to ignore case and such, but don't have time to look now. As others have already stated, this would be done for sorting. Comparing for equality in this manner would result in unecessary overhead.
I'm sure I'm leaving stuff out, but I think this should be enough info to start experimenting if you need more details.
If you need more information than just the name of the printer you can use the System.Management
API to query them:
var printerQuery = new ManagementObjectSearcher("SELECT * from Win32_Printer");
foreach (var printer in printerQuery.Get())
{
var name = printer.GetPropertyValue("Name");
var status = printer.GetPropertyValue("Status");
var isDefault = printer.GetPropertyValue("Default");
var isNetworkPrinter = printer.GetPropertyValue("Network");
Console.WriteLine("{0} (Status: {1}, Default: {2}, Network: {3}",
name, status, isDefault, isNetworkPrinter);
}
This solved my problem
String inputText = "some text with escaped chars"
InputStream is = new ByteArrayInputStream(inputText.getBytes("UTF-8"));
Adding onto Bojan Kogoj's answer:
In your app.module.ts, add a new provider for storage.
@NgModule({
providers: [
{ provide: Storage, useValue: localStorage }
],
imports:[],
declarations:[]
})
And then you can use DI to get it wherever you need it.
@Injectable({
providedIn:'root'
})
export class StateService {
constructor(private storage: Storage) { }
}
My issue was solved by simply refreshing the modules View > Maven Projects. There is refresh icon which refreshes your entire project(s)
How I got this error : I imported a project (Let's call this A which is main project) first and added the remaining projects (B,C,D etc) as modules to this one as I needed all my projects to be shown in one package folder. I deleted the old (A) Project and cloned it again from repo. The IntelliJ reloaded the (A) project but when I try to run, the project wasn't compiling saying "Warning:No JDK specified for module 'B'".
I borrowed from ideas above. This is neither fast nor elegant. but it is accurate.
CASE
WHEN left(column, 3) = '000' THEN right(column, (len(column)-3))
WHEN left(column, 2) = '00' THEN right(a.column, (len(column)-2))
WHEN left(column, 1) = '0' THEN right(a.column, (len(column)-1))
ELSE
END
delete build folder projectfile\android\app\build
and run project
There is a special trick I discovered by accident.
Pass the object from controller to view, convert it to markup without encoding, and parse it to json.
@model IEnumerable<CollegeInformationDTO>
@section Scripts{
<script>
var jsArray = JSON.parse('@Html.Raw(Json.Encode(@Model))');
</script>
}
Most modern languages are in varying degree both imperative and functional but to better understand functional programming, it will be best to take an example of pure functional language like Haskell in contrast of imperative code in not so functional language like java/C#. I believe it is always easy to explain by example, so below is one.
Functional programming: calculate factorial of n i.e n! i.e n x (n-1) x (n-2) x ...x 2 X 1
-- | Haskell comment goes like
-- | below 2 lines is code to calculate factorial and 3rd is it's execution
factorial 0 = 1
factorial n = n * factorial (n - 1)
factorial 3
-- | for brevity let's call factorial as f; And x => y shows order execution left to right
-- | above executes as := f(3) as 3 x f(2) => f(2) as 2 x f(1) => f(1) as 1 x f(0) => f(0) as 1
-- | 3 x (2 x (1 x (1)) = 6
Notice that Haskel allows function overloading to the level of argument value. Now below is example of imperative code in increasing degree of imperativeness:
//somewhat functional way
function factorial(n) {
if(n < 1) {
return 1;
}
return n * factorial(n-1);
}
factorial(3);
//somewhat more imperative way
function imperativeFactor(n) {
int f = 1;
for(int i = 1; i <= n; i++) {
f = f * i;
}
return f;
}
This read can be a good reference to understand that how imperative code focus more on how part, state of machine (i in for loop), order of execution, flow control.
The later example can be seen as java/C# lang code roughly and first part as limitation of the language itself in contrast of Haskell to overload the function by value (zero) and hence can be said it is not purist functional language, on the other hand you can say it support functional prog. to some extent.
Disclosure: none of the above code is tested/executed but hopefully should be good enough to convey the concept; also I would appreciate comments for any such correction :)
In order to get CurrentUserId in Asp.net Identity 2.0, at first import Microsoft.AspNet.Identity
:
C#:
using Microsoft.AspNet.Identity;
VB.NET:
Imports Microsoft.AspNet.Identity
And then call User.Identity.GetUserId()
everywhere you want:
strCurrentUserId = User.Identity.GetUserId()
This method returns current user id as defined datatype for userid in database (the default is String
).
Simply add these code before setting Adapter
it's working for me:
listView.destroyDrawingCache();
listView.setVisibility(ListView.INVISIBLE);
listView.setVisibility(ListView.VISIBLE);
Or Directly you can use below method after change Data resource.
adapter.notifyDataSetChanged()
A more elegant way I found to achieve this behaviour is simply:
<div id="{{ 'object-' + myScopeObject.index }}"></div>
For my implementation I wanted each input element in a ng-repeat to each have a unique id to associate the label with. So for an array of objects contained inside myScopeObjects one could do this:
<div ng-repeat="object in myScopeObject">
<input id="{{object.name + 'Checkbox'}}" type="checkbox">
<label for="{{object.name + 'Checkbox'}}">{{object.name}}</label>
</div>
Being able to generate unique ids on the fly can be pretty useful when dynamically adding content like this.
try this:
$('.modal').on('hidden.bs.modal', function () {
//If there are any visible
if($(".modal:visible").length > 0) {
//Slap the class on it (wait a moment for things to settle)
setTimeout(function() {
$('body').addClass('modal-open');
},100)
}
});
Try this code:
Drawable thumb = ContextCompat.getDrawable(getActivity(), R.mipmap.cir_32);
mSeekBar.setThumb(thumb);
The problem with your conditional is in this part sshkey_result.rc == 1
, because sshkey_result
does not contain rc
attribute and entire conditional fails.
If you want to check if file exists check exists
attribute.
Here you can read more about stat module and how to use it.
Here are a few options:
In Perl, you can choose alternate delimiters. You're not confined to m//
. You could choose another, such as m{}
. Then escaping isn't necessary. As a matter of fact, Damian Conway in "Perl Best Practices" asserts that m{}
is the only alternate delimiter that ought to be used, and this is reinforced by Perl::Critic (on CPAN). While you can get away with using a variety of alternate delimiter characters, //
and {}
seem to be the clearest to decipher later on. However, if either of those choices result in too much escaping, choose whichever one lends itself best to legibility. Common examples are m(...)
, m[...]
, and m!...!
.
In cases where you either cannot or prefer not to use alternate delimiters, you can escape the forward slashes with a backslash: m/\/[^/]+$/
for example (using an alternate delimiter that could become m{/[^/]+$}
, which may read more clearly). Escaping the slash with a backslash is common enough to have earned a name and a wikipedia page: Leaning Toothpick Syndrome. In regular expressions where there's just a single instance, escaping a slash might not rise to the level of being considered a hindrance to legibility, but if it starts to get out of hand, and if your language permits alternate delimiters as Perl does, that would be the preferred solution.
adding overflow:visible !important;
to the body element worked for me.
Insert into TBL (Name, UserName, Password) Output Inserted.IdentityColumnName
Values ('example', 'example', 'example')
Apparently in Android 2.2 there is a bug with SimpleDateFormat.
In order to use month names you have to define them yourself in your resources:
<string-array name="month_names">
<item>January</item>
<item>February</item>
<item>March</item>
<item>April</item>
<item>May</item>
<item>June</item>
<item>July</item>
<item>August</item>
<item>September</item>
<item>October</item>
<item>November</item>
<item>December</item>
</string-array>
And then use them in your code like this:
/**
* Get the month name of a Date. e.g. January for the Date 2011-01-01
*
* @param date
* @return e.g. "January"
*/
public static String getMonthName(Context context, Date date) {
/*
* Android 2.2 has a bug in SimpleDateFormat. Can't use "MMMM" for
* getting the Month name for the given Locale. Thus relying on own
* values from string resources
*/
String result = "";
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int month = cal.get(Calendar.MONTH);
try {
result = context.getResources().getStringArray(R.array.month_names)[month];
} catch (ArrayIndexOutOfBoundsException e) {
result = Integer.toString(month);
}
return result;
}
Change
var svg = document.documentElement;
to
var svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
so that you create a SVG
element.
For the link to be an hyperlink, simply add a href
attribute :
h.setAttributeNS(null, 'href', 'http://www.google.com');
Just to add to other comments - it would be worth while to disable scrolling up whilst at the top of the page. If the user accidentally scrolls up whilst already at the top they would have to scroll down twice to start
if(scrolled != 0){
$("#upClick").on("click" ,function(){
scrolled=scrolled-300;
$(".cover").animate({
scrollTop: scrolled
});
});
}
You can run Rake tasks from your shell by running:
rake task_name
To run from from Ruby (e.g., in the Rails console or another Rake task):
Rake::Task['task_name'].invoke
To run multiple tasks in the same namespace with a single task, create the following new task in your namespace:
task :runall => [:iqmedier, :euroads, :mikkelsen, :orville] do
# This will run after all those tasks have run
end
JSON.stringify(j, null, 4)
would give you beautified JSON in case you need beautification also
The second parameter is replacer. It can be used as Filter where you can filter out certain key values when stringifying. If set to null it will return all key value pairs
DECLARE @str AS VARCHAR(50)
SET @str = 'PONIES!!...pon1es!!...p0n1es!!'
IF PATINDEX('%[0-9]%', @str) > 0
PRINT 'YES, The string has numbers'
ELSE
PRINT 'NO, The string does not have numbers'
Why not just using simple css :
<router-outlet></router-outlet>
<div class="loading"></div>
And in your styles :
div.loading{
height: 100px;
background-color: red;
display: none;
}
router-outlet + div.loading{
display: block;
}
Or even we can do this for the first answer:
<router-outlet></router-outlet>
<spinner-component></spinner-component>
And then simply just
spinner-component{
display:none;
}
router-outlet + spinner-component{
display: block;
}
The trick here is, the new routes and components will always appear after router-outlet , so with a simple css selector we can show and hide the loading.
When starting the JVM, two parameters can be adjusted to suit your memory needs :
-Xms<size>
specifies the initial Java heap size and
-Xmx<size>
the maximum Java heap size.
This is my sample code for load static variable
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
@Component
public class OnelinkConfig {
public static int MODULE_CODE;
public static int DEFAULT_PAGE;
public static int DEFAULT_SIZE;
@Autowired
public void loadOnelinkConfig(@Value("${onelink.config.exception.module.code}") int code,
@Value("${onelink.config.default.page}") int page, @Value("${onelink.config.default.size}") int size) {
MODULE_CODE = code;
DEFAULT_PAGE = page;
DEFAULT_SIZE = size;
}
}
this works for me
$(window).bind('beforeunload', function() {
return 'Do you really want to leave?' ;
});
Try excluding height from the style element.
i.e. neither give height:100% nor to any other value.
here's an updated fiddle where the user's input is saved in local storage automatically. each time the fiddle is re-run or the page is refreshed the previous state is restored. this way you do not need to prompt users to save, it just saves on it's own.
http://jsfiddle.net/tZPg4/9397/
stack overflow requires I include some code with a jsFiddle link so please ignore snippet:
localStorage.setItem(...)
Try this one.
String[] array1= new String[]{};
System.out.println(array1.length);
String[] array2= new String[0];
System.out.println(array2.length);
Note: there is no byte code difference between new String[]{}; and new String[0];
new String[]{}
is array initialization with values.
new String[0];
is array declaration(only allocating memory)
new String[10]{};
is not allowed because new String[10]{ may be here 100 values};
this.toolStrip1 = new System.Windows.Forms.ToolStrip();
this.toolStrip1.Location = new System.Drawing.Point(0, 0);
this.toolStrip1.Name = "toolStrip1";
this.toolStrip1.Size = new System.Drawing.Size(444, 25);
this.toolStrip1.TabIndex = 0;
this.toolStrip1.Text = "toolStrip1";
object O = global::WindowsFormsApplication1.Properties.Resources.ResourceManager.GetObject("best_robust_ghost");
ToolStripButton btn = new ToolStripButton("m1");
btn.DisplayStyle = ToolStripItemDisplayStyle.Image;
btn.Image = (Image)O;
this.toolStrip1.Items.Add(btn);
this.Controls.Add(this.toolStrip1);
Most (if not all) implementations proposed here have two flaws:
An updated proposition:
def find_first_in_list(objects, **kwargs):
return next((obj for obj in objects if
len(set(obj.keys()).intersection(kwargs.keys())) > 0 and
all([obj[k] == v for k, v in kwargs.items() if k in obj.keys()])),
None)
Maybe not the most pythonic, but at least a bit more failsafe.
Usage:
>>> obj1 = find_first_in_list(list_of_dict, name='Pam', age=7)
>>> obj2 = find_first_in_list(list_of_dict, name='Pam', age=27)
>>> obj3 = find_first_in_list(list_of_dict, name='Pam', address='nowhere')
>>>
>>> print(obj1, obj2, obj3)
{"name": "Pam", "age": 7}, None, {"name": "Pam", "age": 7}
The gist.
This is solved in Java version 1.6.0_23 and upwards.
See more details at http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7034935
An <iframe>
gives you a complete window to work with. The most direct way to do what you want is to have your server give you a complete page that only contains the fragment you want to show.
As an alternative, you could just use a simple <div>
and use the jQuery "load" function to load the whole page and pluck out just the section you want:
$('#target-div').load('http://www.mywebsite.com/portfolio.php #portfolio-sports');
There may be other things you need to do, and a significant difference is that the content will become part of the main page instead of being segregated into a separate window.
With Visual Studio 2017
, It now comes with a much better version, named “Go To All”
and is bound to the keyboard shortcut CTRL + T
as well as CTRL +,
and includes inline filtering and “fuzzy search”
CTRL + T
CTRL + ,
Firstly, it will help if you set the headers of your PHP to serve JSON:
header('Content-type: application/json');
Secondly, it will help to adjust your ajax call:
$.ajax({
url: "main.php",
type: "POST",
dataType: "json",
data: {"action": "loadall", "id": id},
success: function(data){
console.log(data);
},
error: function(error){
console.log("Error:");
console.log(error);
}
});
If successful, the response you receieve should be picked up as true JSON and an object should be logged to console.
NOTE: If you want to pick up pure html, you might want to consider using another method to JSON, but I personally recommend using JSON and rendering it into html using templates (such as Handlebars js).
This is not exactly the OP's scenario but an answer to those of some of the commenters. It is a solution based on Cordova and Angular 1, which should be adaptable to other frameworks like jQuery. It gives you a Blob from Base64 data which you can store somewhere and reference it from client side javascript / html.
It also answers the original question on how to get an image (file) from the Base 64 data:
The important part is the Base 64 - Binary conversion:
function base64toBlob(base64Data, contentType) {
contentType = contentType || '';
var sliceSize = 1024;
var byteCharacters = atob(base64Data);
var bytesLength = byteCharacters.length;
var slicesCount = Math.ceil(bytesLength / sliceSize);
var byteArrays = new Array(slicesCount);
for (var sliceIndex = 0; sliceIndex < slicesCount; ++sliceIndex) {
var begin = sliceIndex * sliceSize;
var end = Math.min(begin + sliceSize, bytesLength);
var bytes = new Array(end - begin);
for (var offset = begin, i = 0; offset < end; ++i, ++offset) {
bytes[i] = byteCharacters[offset].charCodeAt(0);
}
byteArrays[sliceIndex] = new Uint8Array(bytes);
}
return new Blob(byteArrays, { type: contentType });
}
Slicing is required to avoid out of memory errors.
Works with jpg and pdf files (at least that's what I tested). Should work with other mimetypes/contenttypes too. Check the browsers and their versions you aim for, they need to support Uint8Array, Blob and atob.
Here's the code to write the file to the device's local storage with Cordova / Android:
...
window.resolveLocalFileSystemURL(cordova.file.externalDataDirectory, function(dirEntry) {
// Setup filename and assume a jpg file
var filename = attachment.id + "-" + (attachment.fileName ? attachment.fileName : 'image') + "." + (attachment.fileType ? attachment.fileType : "jpg");
dirEntry.getFile(filename, { create: true, exclusive: false }, function(fileEntry) {
// attachment.document holds the base 64 data at this moment
var binary = base64toBlob(attachment.document, attachment.mimetype);
writeFile(fileEntry, binary).then(function() {
// Store file url for later reference, base 64 data is no longer required
attachment.document = fileEntry.nativeURL;
}, function(error) {
WL.Logger.error("Error writing local file: " + error);
reject(error.code);
});
}, function(errorCreateFile) {
WL.Logger.error("Error creating local file: " + JSON.stringify(errorCreateFile));
reject(errorCreateFile.code);
});
}, function(errorCreateFS) {
WL.Logger.error("Error getting filesystem: " + errorCreateFS);
reject(errorCreateFS.code);
});
...
Writing the file itself:
function writeFile(fileEntry, dataObj) {
return $q(function(resolve, reject) {
// Create a FileWriter object for our FileEntry (log.txt).
fileEntry.createWriter(function(fileWriter) {
fileWriter.onwriteend = function() {
WL.Logger.debug(LOG_PREFIX + "Successful file write...");
resolve();
};
fileWriter.onerror = function(e) {
WL.Logger.error(LOG_PREFIX + "Failed file write: " + e.toString());
reject(e);
};
// If data object is not passed in,
// create a new Blob instead.
if (!dataObj) {
dataObj = new Blob(['missing data'], { type: 'text/plain' });
}
fileWriter.write(dataObj);
});
})
}
I am using the latest Cordova (6.5.0) and Plugins versions:
I hope this sets everyone here in the right direction.
You can use this function:
UIImageWriteToSavedPhotosAlbum(UIImage *image,
id completionTarget,
SEL completionSelector,
void *contextInfo);
You only need completionTarget, completionSelector and contextInfo if you want to be notified when the UIImage
is done saving, otherwise you can pass in nil
.
See the official documentation for UIImageWriteToSavedPhotosAlbum()
.
Description of the possible values:
left
: No floating elements allowed on the left sideright
: No floating elements allowed on the right sideboth
: No floating elements allowed on either the left or the right sidenone
: Default. Allows floating elements on both sidesinherit
: Specifies that the value of the clear property should be inherited from the parent element
Source: w3schools.com
"margin: 0 auto" only centers an element in IE if the parent element has a "text-align: center".
The linked list holds operations on the shared data structure.
For example, if I have a stack, it will be manipulated with pushes and pops. The linked list would be a set of pushes and pops on the pseudo-shared stack. Each thread sharing that stack will actually have a local copy, and to get to the current shared state, it'll walk the linked list of operations, and apply each operation in order to its local copy of the stack. When it reaches the end of the linked list, its local copy holds the current state (though, of course, it's subject to becoming stale at any time).
In the traditional model, you'd have some sort of locks around each push and pop. Each thread would wait to obtain a lock, then do a push or pop, then release the lock.
In this model, each thread has a local snapshot of the stack, which it keeps synchronized with other threads' view of the stack by applying the operations in the linked list. When it wants to manipulate the stack, it doesn't try to manipulate it directly at all. Instead, it simply adds its push or pop operation to the linked list, so all the other threads can/will see that operation and they can all stay in sync. Then, of course, it applies the operations in the linked list, and when (for example) there's a pop it checks which thread asked for the pop. It uses the popped item if and only if it's the thread that requested this particular pop.
Maybe a bit late, but hope it hellps:
@echo off
if %ERRORLEVEL% == 0 (
msg * 1st line WORKS FINE rem You can relpace msg * with any othe operation...
goto Continue1
)
:Continue1
If exist "C:\Python31" (
msg * 2nd line WORKS FINE rem You can relpace msg * with any othe operation...
goto Continue2
)
:Continue2
If exist "C:\Python31\Lib\site-packages\PyQt4" (
msg * 3th line WORKS FINE rem You can relpace msg * with any othe operation...
goto Continue3
)
:Continue3
msg * 4th line WORKS FINE rem You can relpace msg * with any othe operation...
goto Continue4
)
:Continue4
msg * "Tutto a posto" rem You can relpace msg * with any othe operation...
pause
As you noted, -Dmaven.test.skip=true
skips compiling the tests. More to the point, it skips building the test artifacts. A common practice for large projects is to have testing utilities and base classes shared among modules in the same project.
This is accomplished by having a module require a test-jar
of a previously built module:
<dependency>
<groupId>org.myproject.mygroup</groupId>
<artifactId>common</artifactId>
<version>1.0</version>
<type>test-jar</type>
<scope>test</scope>
</dependency>
If -Dmaven.test.skip=true
(or simply -Dmaven.test.skip
) is specified, the test-jar
s aren't built, and any module that relies on them will fail its build.
In contrast, when you use -DskipTests
, Maven does not run the tests, but it does compile them and build the test-jar, making it available for the subsequent modules.
In the iOS 5 SDK you can access the scroll view associated with a web view directly rather than iterating through its subviews.
So to disable 'bouncing' in the scroll view you can use:
myWebView.scrollView.bounces = NO;
See the UIWebView Class Reference.
(However if you need to support versions of the SDK before 5.0, you should follow Mirek Rusin's advice.)
Ping is meant to be sent only from server to client, and browser should answer as soon as possible with Pong OpCode, automatically. So you have not to worry about that on higher level.
Although that not all browsers support standard as they suppose to, they might have some differences in implementing such mechanism, and it might even means there is no Pong response functionality. But personally I am using Ping / Pong, and never saw client that does not implement this type of OpCode and automatic response on low level client side implementation.
For people who want one-liners without loops:
I can't believe that noone has though of this, but perhaps it's because of the more C-like approach. Anyways, it is perfectly safe to do this without a loop, in a one-liner, ASSUMING that the std::vector<char>
is null-terminated:
std::vector<char> test { 'H', 'e', 'l', 'l', 'o', ',', ' ', 'w', 'o', 'r', 'l', 'd', '!', '\0' };
std::cout << test.data() << std::endl;
But I would wrap this in the ostream
operator, as @Zorawar suggested, just to be safe:
template <typename T>std::ostream& operator<< (std::ostream& out, std::vector<T>& v)
{
v.push_back('\0'); // safety-check!
out << v.data();
return out;
}
std::cout << test << std::endl; // will print 'Hello, world!'
We can achieve similar behaviour by using printf
instead:
fprintf(stdout, "%s\n", &test[0]); // will also print 'Hello, world!'
NOTE:
The overloaded ostream
operator needs to accept the vector as non-const. This might make the program insecure or introduce misusable code. Also, since null-character is appended, a reallocation of the std::vector
might occur. So using for-loops with iterators will likely be faster.
You wont be able to access a local resource from your aspx page (web server). Have you tried a relative path from your aspx page to your css file like so...
<link rel="stylesheet" media="all" href="/CSS/Style.css" type="text/css" />
The above assumes that you have a folder called CSS
in the root of your website like this:
http://www.website.com/CSS/Style.css
I use Visual Studio 2013. I faced this problem 2 times:
On first occasion, I was running Visual Studio without Administrator rights. So, I closed VS and started it using 'Run as administrator' option. This solved my problem.
On second occasion, I restarted VS many times, every time making sure that I am running it as an administrator. Also, I rebuilt solution many times. But, in spite of that I was getting error. After that, I removed the concerned file from the target location (the file was already present may be from the previous build at the location where it tries to copy to) and rebuilt the solution. After that, error went away and everything ran smoothly!
EditorFor
works with metadata, so if you want to add html attributes you could always do it. Another option is to simply write a custom template and use TextBoxFor
:
<%= Html.TextBoxFor(model => model.Control.PeriodType,
new { disabled = "disabled", @readonly = "readonly" }) %>
create constant file with any name like my_constants.py declare constant like that
CONSTANT_NAME = "SOME VALUE"
For accessing constant in your code import file like that
import my_constants as constant
and access the constant value as -
constant.CONSTANT_NAME
You could define a mapping of air pressure to servo angle, for example:
def calc_angle(pressure, min_p=1000, max_p=1200): return 360 * ((pressure - min_p) / float(max_p - min_p)) angle = calc_angle(pressure)
This will linearly convert pressure
values between min_p
and max_p
to angles between 0 and 360 (you could include min_a
and max_a
to constrain the angle, too).
To pick a data structure, I wouldn't use a list but you could look up values in a dictionary:
d = {1000:0, 1001: 1.8, ...} angle = d[pressure]
but this would be rather time-consuming to type out!
class receipt_model extends CI_Model {
public function index(){
$this->db->select('*');
$this->db->from('donor_details');
$this->db->order_by('donor_id','desc');
$query=$this->db->get();
$row=$query->row();
return $row;
}
}
Try this:
subset(studentdata, Drink=='water')
that should do it.
Yes there is retainAll
check out this
Set<Type> intersection = new HashSet<Type>(s1);
intersection.retainAll(s2);
This is not an answer to the original question "What are the differences between .gitignore and .gitkeep?" but posting here to help people to keep track of empty dir in a simple fashion. To track empty directory and knowling that .gitkeep
is not official part of git,
just add a empty (with no content) .gitignore
file in it.
So for e.g. if you have /project/content/posts
and sometimes posts
directory might be empty then create empty file /project/content/posts/.gitignore
with no content to track that directory and its future files in git.
You don't need three .yml files for this. You can have a single application.yml file and write profile specific properties in the same where each profile section is separated by 3 hyphen (---)
Next, for selecting the current active profile, you can specify that as well in your application.yml file, like this :
spring:
profiles:
active:
- local
However, this configuration will be overriden if you set an Environment variable, eg : SPRING_PROFILES_ACTIVE = dev
Here is a sample file for you requirement:
# include common properties for every profile in this section
server.port: 5000
spring:
profiles:
active:
- local
---
# profile specific properties
spring:
profiles: local
datasource:
url: jdbc:mysql://localhost:3306/
username: root
password: root
---
# profile specific properties
spring:
profiles: dev
datasource:
url: jdbc:mysql://<dev db url>
username: <username>
password: <password>
In Python 3, you can use
"one" in d.values()
to test if "one"
is among the values of your dictionary.
In Python 2, it's more efficient to use
"one" in d.itervalues()
instead.
Note that this triggers a linear scan through the values of the dictionary, short-circuiting as soon as it is found, so this is a lot less efficient than checking whether a key is present.
Use stream_context_set_default
function. It is much easier to use as you can directly use file_get_contents or similar functions without passing any additional parameters
This blog post explains how to use it. Here is the code from that page.
<?php
// Edit the four values below
$PROXY_HOST = "proxy.example.com"; // Proxy server address
$PROXY_PORT = "1234"; // Proxy server port
$PROXY_USER = "LOGIN"; // Username
$PROXY_PASS = "PASSWORD"; // Password
// Username and Password are required only if your proxy server needs basic authentication
$auth = base64_encode("$PROXY_USER:$PROXY_PASS");
stream_context_set_default(
array(
'http' => array(
'proxy' => "tcp://$PROXY_HOST:$PROXY_PORT",
'request_fulluri' => true,
'header' => "Proxy-Authorization: Basic $auth"
// Remove the 'header' option if proxy authentication is not required
)
)
);
$url = "http://www.pirob.com/";
print_r( get_headers($url) );
echo file_get_contents($url);
?>
A quick summary of the concepts:
Example:
Say you've got a button like this:
[ Click Me ]
and you've pinned the edges to a larger superview with priority 500.
Then, if Hugging priority > 500 it'll look like this:
[Click Me]
If Hugging priority < 500 it'll look like this:
[ Click Me ]
If the superview now shrinks then, if the Compression Resistance priority > 500, it'll look like this
[Click Me]
Else if Compression Resistance priority < 500, it could look like this:
[Cli..]
If it doesn't work like this then you've probably got some other constraints going on that are messing up your good work!
E.g. you could have it pinned to the superview with priority 1000. Or you could have a width priority. If so, this can be helpful:
Editor > Size to Fit Content
taking original db to offline worked for me
This can be done elegantly with Ray, a system that allows you to easily parallelize and distribute your Python code.
To parallelize your example, you'd need to define your functions with the @ray.remote
decorator, and then invoke them with .remote
.
import ray
ray.init()
dir1 = 'C:\\folder1'
dir2 = 'C:\\folder2'
filename = 'test.txt'
addFiles = [25, 5, 15, 35, 45, 25, 5, 15, 35, 45]
# Define the functions.
# You need to pass every global variable used by the function as an argument.
# This is needed because each remote function runs in a different process,
# and thus it does not have access to the global variables defined in
# the current process.
@ray.remote
def func1(filename, addFiles, dir):
# func1() code here...
@ray.remote
def func2(filename, addFiles, dir):
# func2() code here...
# Start two tasks in the background and wait for them to finish.
ray.get([func1.remote(filename, addFiles, dir1), func2.remote(filename, addFiles, dir2)])
If you pass the same argument to both functions and the argument is large, a more efficient way to do this is using ray.put()
. This avoids the large argument to be serialized twice and to create two memory copies of it:
largeData_id = ray.put(largeData)
ray.get([func1(largeData_id), func2(largeData_id)])
Important - If func1()
and func2()
return results, you need to rewrite the code as follows:
ret_id1 = func1.remote(filename, addFiles, dir1)
ret_id2 = func2.remote(filename, addFiles, dir2)
ret1, ret2 = ray.get([ret_id1, ret_id2])
There are a number of advantages of using Ray over the multiprocessing module. In particular, the same code will run on a single machine as well as on a cluster of machines. For more advantages of Ray see this related post.
foreach($test_package_data as $key=>$data ) {
$category_detail_arr = $test_package_data[$key]['category_detail'];
foreach( $category_detail_arr as $i=>$value ) {
$test_package_data[$key]['category_detail'][$i]['count'] = $some_value;////<----Here
}
}
All the gory details can be found in the current RFC on the topic: RFC 3986 (Uniform Resource Identifier (URI): Generic Syntax)
Based on this related answer, you are looking at a list that looks like: A-Z
, a-z
, 0-9
, -
, .
, _
, ~
, :
, /
, ?
, #
, [
, ]
, @
, !
, $
, &
, '
, (
, )
, *
, +
, ,
, ;
, %
, and =
. Everything else must be url-encoded. Also, some of these characters can only exist in very specific spots in a URI and outside of those spots must be url-encoded (e.g. %
can only be used in conjunction with url encoding as in %20
), the RFC has all of these specifics.
try:
SELECT COUNT(*) FROM USER_TABLES;
Well i dont have oracle on my machine, i run mysql (OP comment)
at the time of writing, this site was great for testing on a variety of database types.
A not well known feature of numpy is to use r_
. This is a simple way to build up arrays quickly:
import numpy as np
a = np.array([1,2,3])
b = np.array([4,5,6])
c = np.r_[a[None,:],b[None,:]]
print(c)
#[[1 2 3]
# [4 5 6]]
The purpose of a[None,:]
is to add an axis to array a
.
Container(
color: Color.fromRGBO(224, 251, 253, 1.0),
child: ListTile(
dense: true,
title: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
RichText(
textAlign: TextAlign.left,
softWrap: true,
text: TextSpan(children: <TextSpan>
[
TextSpan(text: "hello: ",
style: TextStyle(
color: Colors.black, fontWeight: FontWeight.bold)),
TextSpan(text: "I hope this helps",
style: TextStyle(color: Colors.black)),
]
),
),
],
),
),
),
Basically, there are three main characters which should be always escaped in your HTML and XML files, so they don't interact with the rest of the markups, so as you probably expect, two of them gonna be the syntax wrappers, which are <>, they are listed as below:
1) < (<)
2) > (>)
3) & (&)
Also we may use double-quote (") as " and the single quote (') as &apos
Avoid putting dynamic content in <script>
and <style>
.These rules are not for applied for them. For example, if you have to include JSON in a , replace < with \x3c, the U+2028 character with \u2028, and U+2029 with \u2029 after JSON serialisation.)
HTML Escape Characters: Complete List: http://www.theukwebdesigncompany.com/articles/entity-escape-characters.php
So you need to escape <, or & when followed by anything that could begin a character reference. Also The rule on ampersands is the only such rule for quoted attributes, as the matching quotation mark is the only thing that will terminate one. But if you don’t want to terminate the attribute value there, escape the quotation mark.
Changing to UTF-8 means re-saving your file:
Using the character encoding UTF-8 for your page means that you can avoid the need for most escapes and just work with characters. Note, however, that to change the encoding of your document, it is not enough to just change the encoding declaration at the top of the page or on the server. You need to re-save your document in that encoding. For help understanding how to do that with your application read Setting encoding in web authoring applications.Invisible or ambiguous characters:
A particularly useful role for escapes is to represent characters that are invisible or ambiguous in presentation.
One example would be Unicode character U+200F RIGHT-TO-LEFT MARK. This character can be used to clarify directionality in bidirectional text (eg. when using the Arabic or Hebrew scripts). It has no graphic form, however, so it is difficult to see where these characters are in the text, and if they are lost or forgotten they could create unexpected results during later editing. Using ? (or its numeric character reference equivalent ?) instead makes it very easy to spot these characters.
An example of an ambiguous character is U+00A0 NO-BREAK SPACE. This type of space prevents line breaking, but it looks just like any other space when used as a character. Using makes it quite clear where such spaces appear in the text.
use android:gravity="center" to parent
<LinearLayout
android:layout_width="200dp"
android:layout_height="200dp"
android:gravity="center"
>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Hello world"
/>
</LinearLayout>
Use the getTime
method to get the time in total milliseconds since 1970-01-01, and subtract those:
var time = new Date().getTime() - new Date("2013-02-20T12:01:04.753Z").getTime();
Another way is to call an external process such as curl.exe. Curl by default displays a progress bar, average download speed, time left, and more all formatted neatly in a table. Put curl.exe in the same directory as your script
from subprocess import call
url = ""
call(["curl", {url}, '--output', "song.mp3"])
Note: You cannot specify an output path with curl, so do an os.rename afterwards
Properties
.Libraries
.Compile tab
- click Add Jar/Folder
button.Or
Libraries
.Add Jar/Folder
.int numberOfRecords = 0;
numberOfRecords = dtFoo.Select().Length;
MessageBox.Show(numberOfRecords.ToString());
While the question is just a bit old, this might still help. I'm running into similar issues and using the option below has helped me. Not sure if this is a permanent solution, but it's fixing it for now.
OPTION (OPTIMIZE FOR UNKNOWN)
Then your query will be like this
select * from Table where Col = 'someval' OPTION (OPTIMIZE FOR UNKNOWN)
On Ubuntu you should be able to install the necessary PDO parts from apt using sudo apt-get install php5-mysql
There is no limitation between using PDO and mysql_ simultaneously. You will however need to create two connections to your DB, one with mysql_ and one using PDO.
Here is another seamless approach to convert JSON to Datatable using Cinchoo ETL - an open source library
Sample below shows how to convert
string json = @"[
{""id"":""10"",""name"":""User"",""add"":false,""edit"":true,""authorize"":true,""view"":true},
{ ""id"":""11"",""name"":""Group"",""add"":true,""edit"":false,""authorize"":false,""view"":true},
{ ""id"":""12"",""name"":""Permission"",""add"":true,""edit"":true,""authorize"":true,""view"":true}
]";
using (var r = ChoJSONReader.LoadText(json))
{
var dt = r.AsDataTable();
}
Hope it helps.
You might also gain a very subsquent performance boost by changing the following Git configuration:
git config --global status.submoduleSummary false
When running the simple git status
command on Window 7 x64, it took my computer more than 30 seconds to run. After this option was defined, the command is immediate.
Activating Git's own tracing as explained in the following page helped me found the origin of the problem, which might differ in your installation: https://github.com/msysgit/msysgit/wiki/Diagnosing-why-Git-is-so-slow
I got a lot of trouble trying to reload something inside Sublime Text, but finally I could wrote this utility to reload modules on Sublime Text based on the code sublime_plugin.py
uses to reload modules.
This below accepts you to reload modules from paths with spaces on their names, then later after reloading you can just import as you usually do.
def reload_module(full_module_name):
"""
Assuming the folder `full_module_name` is a folder inside some
folder on the python sys.path, for example, sys.path as `C:/`, and
you are inside the folder `C:/Path With Spaces` on the file
`C:/Path With Spaces/main.py` and want to re-import some files on
the folder `C:/Path With Spaces/tests`
@param full_module_name the relative full path to the module file
you want to reload from a folder on the
python `sys.path`
"""
import imp
import sys
import importlib
if full_module_name in sys.modules:
module_object = sys.modules[full_module_name]
module_object = imp.reload( module_object )
else:
importlib.import_module( full_module_name )
def run_tests():
print( "\n\n" )
reload_module( "Path With Spaces.tests.semantic_linefeed_unit_tests" )
reload_module( "Path With Spaces.tests.semantic_linefeed_manual_tests" )
from .tests import semantic_linefeed_unit_tests
from .tests import semantic_linefeed_manual_tests
semantic_linefeed_unit_tests.run_unit_tests()
semantic_linefeed_manual_tests.run_manual_tests()
if __name__ == "__main__":
run_tests()
If you run for the first time, this should load the module, but if later you can again the method/function run_tests()
it will reload the tests files. With Sublime Text (Python 3.3.6
) this happens a lot because its interpreter never closes (unless you restart Sublime Text, i.e., the Python3.3
interpreter).
One working example for me.
Controller:
public function tableView()
{
$sites = Site::all();
return view('main.table', compact('sites'));
}
View:
<script>
var sites = {!! json_encode($sites->toArray()) !!};
</script>
To prevent malicious / unintended behaviour, you can use JSON_HEX_TAG
as suggested by Jon in the comment that links to this SO answer
<script>
var sites = {!! json_encode($sites->toArray(), JSON_HEX_TAG) !!};
</script>
You can create a temp table variable and insert the data into it, then insert the data into your actual table by selecting it from the temp table.
declare @TableVar table
(
firstCol varchar(50) NOT NULL,
secondCol varchar(50) NOT NULL
)
BULK INSERT @TableVar FROM 'PathToCSVFile' WITH (FIELDTERMINATOR = ',', ROWTERMINATOR = '\n')
GO
INSERT INTO dbo.ExistingTable
(
firstCol,
secondCol
)
SELECT firstCol,
secondCol
FROM @TableVar
GO
What type of sql database are using (MSSQL, Oracle etc)? I believe what you have written is correct.
You could also write the first query like this:
SELECT s.sid, s.name
FROM Supplier s
WHERE (SELECT COUNT(DISTINCT pr.jid)
FROM Supplies su, Projects pr
WHERE su.sid = s.sid
AND pr.jid = su.jid) >= 2
It's a little more readable, and less mind-bending than trying to do it with GROUP BY. Performance may differ though.
Use the length
property of the [String]
type:
if ($dbUserName.length -gt 8) {
Write-Output "Please enter more than 8 characters."
$dbUserName = Read-Host "Re-enter database username"
}
Please note that you have to use -gt
instead of >
in your if
condition. PowerShell uses the following comparison operators to compare values and test conditions:
When using the new ruby, the image folder will go to asset folder on folder app
after placing your images in image folder, use
<%=image_tag("example_image.png", alt: "Example Image")%>
Drop in the image in /res/drawable folder. Then in Eclipse Menu, do ->Project -> Clean. This will do a clean build if set to build automatically.
If you just need sampling without replacement:
>>> import random
>>> random.sample(range(1, 100), 3)
[77, 52, 45]
random.sample takes a population and a sample size k
and returns k
random members of the population.
If you have to control for the case where k
is larger than len(population)
, you need to be prepared to catch a ValueError
:
>>> try:
... random.sample(range(1, 2), 3)
... except ValueError:
... print('Sample size exceeded population size.')
...
Sample size exceeded population size
if you call pyplot
as plt
frameon=False
is to remove the border around the legend
and '' is passing the information that no variable should be in the legend
import matplotlib.pyplot as plt
plt.legend('',frameon=False)
There are some guys at Mozilla working on implementing a PDF reader using HTML5 and JavaScript. It is called pdf.js and one of the developers just made an interesting blog post about the project.
This should work:
public class ConnectivityChangeActivity extends Activity {
private BroadcastReceiver networkChangeReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
Log.d("app","Network connectivity change");
}
};
@Override
protected void onResume() {
super.onResume();
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
registerReceiver(networkChangeReceiver, intentFilter);
}
@Override
protected void onPause() {
super.onPause();
unregisterReceiver(networkChangeReceiver);
}
}
If you need to add two strings together which are very large numbers you'll need to evaluate the addition at every string position:
function addStrings(str1, str2){
str1a = str1.split('').reverse();
str2a = str2.split('').reverse();
let output = '';
let longer = Math.max(str1.length, str2.length);
let carry = false;
for (let i = 0; i < longer; i++) {
let result
if (str1a[i] && str2a[i]) {
result = parseInt(str1a[i]) + parseInt(str2a[i]);
} else if (str1a[i] && !str2a[i]) {
result = parseInt(str1a[i]);
} else if (!str1a[i] && str2a[i]) {
result = parseInt(str2a[i]);
}
if (carry) {
result += 1;
carry = false;
}
if(result >= 10) {
carry = true;
output += result.toString()[1];
}else {
output += result.toString();
}
}
output = output.split('').reverse().join('');
if(carry) {
output = '1' + output;
}
return output;
}
you are in a situation where you cannot set a certain program as the default program to use when opening a certain type of file, I've found using a .bat file handy. In my case, Textpad runs on my machine via Microsoft Application Virtualization ("AppV"). The path to Textpad is in an "AppV directory" so to speak. My Textpad AppV shortcut has this as a target...
%ALLUSERSPROFILE%\Microsoft\AppV\Client\Integration\
12345ABC-A1BC-1A23-1A23-1234567E1234\Root\TextPad.exe
To associate the textpad.exe with 'txt' files via a 'bat' file:
1) In Explorer, create a new ('txt') file and save as opentextpad.bat in an "appropriate" location
2) In the opentextpad.bat file, type this line:
textpad.exe %1
3) Save and Close
4) In explorer, perform windows file association by right-clicking on a 'txt' file (e.g. 'dummy.txt') and choose 'Open with > Choose default program...' from the menu. In the 'Open with' window, click 'Browse...', then navigate to and select your textpad.bat file. Click 'Open'. You'll return to the 'Open with' window. Make sure to check the 'Always use the selected program to open this type of file' checkbox. Click 'OK' and the window will close.
When you open a 'txt' file now, it will open the file with 'textpad.exe'.
Hope this is useful.
Named tuples were added in 2.6 for this purpose. Also see os.stat for a similar builtin example.
>>> import collections
>>> Point = collections.namedtuple('Point', ['x', 'y'])
>>> p = Point(1, y=2)
>>> p.x, p.y
1 2
>>> p[0], p[1]
1 2
In recent versions of Python 3 (3.6+, I think), the new typing
library got the NamedTuple
class to make named tuples easier to create and more powerful. Inheriting from typing.NamedTuple
lets you use docstrings, default values, and type annotations.
Example (From the docs):
class Employee(NamedTuple): # inherit from typing.NamedTuple
name: str
id: int = 3 # default value
employee = Employee('Guido')
assert employee.id == 3
I'm not a JS pro, but I figured out a couple ways you could do this.
The HTML:
<p id="truncate">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi elementum consequat tortor et euismod. Nam commodo consequat libero vel lobortis. Morbi ac nisi at leo vehicula consectetur.</p>
Then with jQuery you truncate it down to a specific character count but leave the last word like this:
// Truncate but leave last word
var myTag = $('#truncate').text();
if (myTag.length > 100) {
var truncated = myTag.trim().substring(0, 100).split(" ").slice(0, -1).join(" ") + "…";
$('#truncate').text(truncated);
}
The result looks like this:
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi
elementum consequat tortor et…
Or, you can simply truncate it down to a specific character count like this:
// Truncate to specific character
var myTag = $('#truncate').text();
if (myTag.length > 15) {
var truncated = myTag.trim().substring(0, 100) + "…";
$('#truncate').text(truncated);
}
The result looks like this:
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi
elementum consequat tortor et euismod…
Hope that helps a bit.
Here is the jsFiddle.
if you re in say my-project/app/somefolder
run in terminal cd ..
two times to get in my-project/
folder
To put it nice and simply, get(int index)
returns the element at the specified index.
So say we had an ArrayList
of String
s:
List<String> names = new ArrayList<String>();
names.add("Arthur Dent");
names.add("Marvin");
names.add("Trillian");
names.add("Ford Prefect");
Which can be visualised as:
Where 0, 1, 2, and 3 denote the indexes of the ArrayList
.
Say we wanted to retrieve one of the names we would do the following:
String name = names.get(1);
Which returns the name at the index of 1.
So if we were to print out the name System.out.println(name);
the output would be Marvin
- Although he might not be too happy with us disturbing him.
If you have the ID of the div, try this:
<input type='submit' onclick='$("#div_id").show()'>
Yes, that's the expected behavior. a, b and c are all set as labels for the same list. If you want three different lists, you need to assign them individually. You can either repeat the explicit list, or use one of the numerous ways to copy a list:
b = a[:] # this does a shallow copy, which is good enough for this case
import copy
c = copy.deepcopy(a) # this does a deep copy, which matters if the list contains mutable objects
Assignment statements in Python do not copy objects - they bind the name to an object, and an object can have as many labels as you set. In your first edit, changing a[0], you're updating one element of the single list that a, b, and c all refer to. In your second, changing e, you're switching e to be a label for a different object (4 instead of 3).
I would highly recommend taking a look at datejs. With it's api, it becomes drop dead simple to add a month (and lots of other date functionality):
var one_month_from_your_date = your_date_object.add(1).month();
What's nice about datejs
is that it handles edge cases, because technically you can do this using the native Date
object and it's attached methods. But you end up pulling your hair out over edge cases, which datejs
has taken care of for you.
Plus it's open source!
Everyone said it, but I guess it won't hurt saying it again.
You need to set the width
to some value. Here is something simpler to understand.
I would prefer a callback solution: Working fiddle here: http://jsfiddle.net/canCu/
function myFunction(value1,value2,value3, callback) {
value2 = 'somevalue2'; //to return
value3 = 'somevalue3'; //to return
callback( value2, value3 );
}
var value1 = 1;
var value2 = 2;
var value3 = 3;
myFunction(value1,value2,value3, function(value2, value3){
if (value2 && value3) {
//Do some stuff
alert( value2 + '-' + value3 );
}
});
There is also the 'djb way'. You can use this method to start your process as root running on any port under tcpserver, then it will hand control of the process to the user you specify immediately after the process starts.
#!/bin/sh
UID=$(id -u username)
GID=$(id -g username)
exec tcpserver -u "${UID}" -g "${GID}" -RHl0 0 port /path/to/binary &
For more info, see: http://thedjbway.b0llix.net/daemontools/uidgid.html
To remove item you need to remove it from array and can pass bday
item to your remove function in markup. Then in controller look up the index of item and remove from array
<a class="btn" ng-click="remove(item)">Delete</a>
Then in controller:
$scope.remove = function(item) {
var index = $scope.bdays.indexOf(item);
$scope.bdays.splice(index, 1);
}
Angular will automatically detect the change to the bdays
array and do the update of ng-repeat
DEMO: http://plnkr.co/edit/ZdShIA?p=preview
EDIT: If doing live updates with server would use a service you create using $resource
to manage the array updates at same time it updates server
In addtion to align-self
you can also consider auto margin which will do almost the same thing
.container {_x000D_
background: red;_x000D_
height: 200px;_x000D_
flex-direction: column;_x000D_
padding: 10px;_x000D_
display: flex;_x000D_
}_x000D_
a {_x000D_
margin-right:auto;_x000D_
padding: 10px 40px;_x000D_
background: pink;_x000D_
}
_x000D_
<div class="container">_x000D_
<a href="#">Test</a>_x000D_
</div>
_x000D_
You could try to extract columns as list, massage this as you want, and reindex your dataframe:
>>> cols = df.columns.tolist()
>>> cols = [cols[-1]]+cols[:-1] # or whatever change you need
>>> df.reindex(columns=cols)
n l v
0 0 a 1
1 0 b 2
2 0 c 1
3 0 d 2
EDIT: this can be done in one line ; however, this looks a bit ugly. Maybe some cleaner proposal may come...
>>> df.reindex(columns=['n']+df.columns[:-1].tolist())
n l v
0 0 a 1
1 0 b 2
2 0 c 1
3 0 d 2
When using ES6 code in React always use arrow functions, because the this context is automatically binded with it
Use this:
(videos) => {
this.setState({ videos: videos });
console.log(this.state.videos);
};
instead of:
function(videos) {
this.setState({ videos: videos });
console.log(this.state.videos);
};
Via using NodeJS (commonJS syntax) I was able to get this type of functionality working, I originally had just a JSON structure inside some external JS file, but I wanted that structure to be more of a Class, with methods that could be decided at run time.
The declaration of 'Executor' in myJSON is not required.
var myJSON = {
"Hello": "World",
"Executor": ""
}
module.exports = {
init: () => { return { ...myJSON, "Executor": (first, last) => { return first + last } } }
}
Latest Update: 16/01/2020
Preprocessor "NOT" required!
There is a lot of repetition in CSS. A single color may be used in several places.
For some CSS declarations, it is possible to declare this higher in the cascade and let CSS inheritance solve this problem naturally.
For non-trivial projects, this is not always possible. By declaring a variable on the :root
pseudo-element, a CSS author can halt some instances of repetition by using the variable.
Set your variable at the top of your stylesheet:
CSS
Create a root class:
:root {
}
Create variables (-- [String] : [value])
:root {
--red: #b00;
--blue: #00b;
--fullwidth: 100%;
}
Set your variables anywhere in your CSS document:
h1 {
color: var(--red);
}
#MyText {
color: var(--blue);
width: var(--fullwidth);
}
See caniuse.com for current compatability.
Firefox: Version 31+ (Enabled by default)
Supported since 2014 (Leading the way as usual.)
Chrome: Version 49+ (Enabled by default).
Supported since 2016
Safari/IOS Safari: Version 9.1/9.3 (Enabled by default).
Supported since 2016
Opera: Version 39+ (Enabled by default).
Supported since 2016
Android: Version 52+ (Enabled by default).
Supported since 2016
Edge: Version 15+ (Enabled by default).
Supported since 2017
CSS Custom Properties landed in Windows Insider Preview build 14986
IE: When pigs fly.
It's time to finally let this ship sink. No one enjoyed riding her anyway. ?
W3C SPEC
Full specification for upcoming CSS variables
A fiddle and snippet are attached below for testing:
(It will only work with supported browsers.)
:root {
--red: #b00;
--blue: #4679bd;
--grey: #ddd;
--W200: 200px;
--Lft: left;
}
.Bx1,
.Bx2,
.Bx3,
.Bx4 {
float: var(--Lft);
width: var(--W200);
height: var(--W200);
margin: 10px;
padding: 10px;
border: 1px solid var(--red);
}
.Bx1 {
color: var(--red);
background: var(--grey);
}
.Bx2 {
color: var(--grey);
background: black;
}
.Bx3 {
color: var(--grey);
background: var(--blue);
}
.Bx4 {
color: var(--grey);
background: var(--red);
}
_x000D_
<p>If you see four square boxes then variables are working as expected.</p>
<div class="Bx1">I should be red text on grey background.</div>
<div class="Bx2">I should be grey text on black background.</div>
<div class="Bx3">I should be grey text on blue background.</div>
<div class="Bx4">I should be grey text on red background.</div>
_x000D_
I'd fought with this a long time $('#myelement').val(x)
just wasn't working ... until I realized the #
construction requires an ID, not a NAME. So if ".val(x)
doesn't work!" is your problem, check your element and be sure it has an ID!
It's an embarrassing gotcha, but I felt I had to share to save others much hair-tearing.
With Dulwich tip you should be able to do:
from dulwich.repo import Repo
Repo("/path/to/source").clone("/path/to/target")
This is still very basic - it copies across the objects and the refs, but it doesn't yet create the contents of the working tree if you create a non-bare repository.
I guess I am coming late, but this info might be useful to anyone I found out something, which might be simple but important. if you use export on a function directly i.e
export const addPost = (id) =>{
...
}
Note while importing you need to wrap it in curly braces
i.e. import {addPost} from '../URL';
But when using export default i.e
const addPost = (id) =>{
...
}
export default addPost
,
Then you can import without curly braces i.e.
import addPost from '../url';
export default addPost
I hope this helps anyone who got confused as me.
Try this:-
ALTER TABLE <TABLE NAME to be moved> MOVE TABLESPACE <destination TABLESPACE NAME>
Very nice suggestion from IVAN in comments so thought to add in my answer
Note: this will invalidate all table's indexes. So this command is usually followed by
alter index <owner>."<index_name>" rebuild;
Use execute_script
, here's a python example:
from selenium import webdriver
driver = webdriver.Firefox()
driver.get("http://stackoverflow.com/questions/7794087/running-javascript-in-selenium-using-python")
driver.execute_script("document.getElementsByClassName('comment-user')[0].click()")
Please try this. You will understand all perfectly after you will take a look on my solution.
There are only 2 ways of creating threads in java
with implements Runnable
class One implements Runnable {
@Override
public void run() {
System.out.println("Running thread 1 ... ");
}
with extends Thread
class Two extends Thread {
@Override
public void run() {
System.out.println("Running thread 2 ... ");
}
Your MAIN class here
public class ExampleMain {
public static void main(String[] args) {
One demo1 = new One();
Thread t1 = new Thread(demo1);
t1.start();
Two demo2 = new Two();
Thread t2 = new Thread(demo2);
t2.start();
}
}
Make your first pivot table.
Select the first top left cell.
Create a range name using offset:
OFFSET(Sheet1!$A$3,0,0,COUNTA(Sheet1!$A:$A)-1,COUNTA(Sheet1!$3:$3))
Make your second pivot with your range name as source of data using F3.
If you change number of rows or columns from your first pivot, your second pivot will be update after refreshing pivot
GFGDT
Environment.GetSystemVariable("%SystemDrive%"); will provide the drive OS installed, and you can set filters to savedialog Obtain file path of C# save dialog box
Delete node folder completely from program file folder. Uninstall node.js and then reinstall it. change Path of environment variable PATH. delete .npmrc file from C:\users\yourusername
If you want to set required to true
$(document).ready(function(){
$('#edit-submitted-first-name').prop('required',true);
});
if you want to set required to false
$(document).ready(function(){
$('#edit-submitted-first-name').prop('required',false);
});
From the Python glossary:
It’s important to keep in mind that all packages are modules, but not all modules are packages. Or put another way, packages are just a special kind of module. Specifically, any module that contains a
__path__
attribute is considered a package.
Python files with a dash in the name, like my-file.py
, cannot be imported with a simple import
statement. Code-wise, import my-file
is the same as import my - file
which will raise an exception. Such files are better characterized as scripts whereas importable files are modules.
You may not pass str
to fit this kind of classifier.
For example, if you have a feature column named 'grade' which has 3 different grades:
A,B and C.
you have to transfer those str
"A","B","C" to matrix by encoder like the following:
A = [1,0,0]
B = [0,1,0]
C = [0,0,1]
because the str
does not have numerical meaning for the classifier.
In scikit-learn, OneHotEncoder
and LabelEncoder
are available in inpreprocessing
module.
However OneHotEncoder
does not support to fit_transform()
of string.
"ValueError: could not convert string to float" may happen during transform.
You may use LabelEncoder
to transfer from str
to continuous numerical values. Then you are able to transfer by OneHotEncoder
as you wish.
In the Pandas dataframe, I have to encode all the data which are categorized to dtype:object
. The following code works for me and I hope this will help you.
from sklearn import preprocessing
le = preprocessing.LabelEncoder()
for column_name in train_data.columns:
if train_data[column_name].dtype == object:
train_data[column_name] = le.fit_transform(train_data[column_name])
else:
pass
os._exit()
:
exit(0)
:
exit(1)
:
sys.exit()
:
quit()
:
Basically they all do the same thing, however, it also depends on what you are doing it for.
I don't think you left anything out and I would recommend getting used to quit()
or exit()
.
You would use sys.exit()
and os._exit()
mainly if you are using big files or are using python to control terminal.
Otherwise mainly use exit()
or quit()
.
$time = '10:09';
$timestamp = strtotime($time);
$timestamp_one_hour_later = $timestamp + 3600; // 3600 sec. = 1 hour
// Formats the timestamp to HH:MM => outputs 11:09.
echo strftime('%H:%M', $timestamp_one_hour_later);
// As crolpa suggested, you can also do
// echo date('H:i', $timestamp_one_hour_later);
Check PHP manual for strtotime(), strftime() and date() for details.
BTW, in your initial code, you need to add some quotes otherwise you will get PHP syntax errors:
$time = 10:09; // wrong syntax
$time = '10:09'; // syntax OK
$time = date(H:i, strtotime('+1 hour')); // wrong syntax
$time = date('H:i', strtotime('+1 hour')); // syntax OK
The Html.Hidden creates a hidden input but you have to specify the name and all the attributes you want to give that field and value. The Html.HiddenFor
creates a hidden input for the object that you pass to it, they look like this:
Html.Hidden("yourProperty",model.yourProperty);
Html.HiddenFor(m => m.yourProperty)
In this case the output is the same!
If you have the file descriptor fstat()
returns a stat structure which contain the file size.
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
// fd = fileno(f); //if you have a stream (e.g. from fopen), not a file descriptor.
struct stat buf;
fstat(fd, &buf);
off_t size = buf.st_size;
The normal usage of static is to access the function directly with out any object creation. Same as in java main we could not create any object for that class to invoke the main method. It will execute automatically. If we want to execute manually we can call by using main() inside the class and ClassName.main from outside the class.
SciChart for Android is a relative newcomer, but brings extremely fast high performance real-time charting to the Android platform.
SciChart is a commercial control but available under royalty free distribution / per developer licensing. There is also free licensing available for educational use with some conditions.
Some useful links can be found below:
Disclosure: I am the tech lead on the SciChart project!
DESCRIBE <table>;
This is acutally a shortcut for:
SHOW COLUMNS FROM <table>;
In any case, there are three possible values for the "Key" attribute:
PRI
UNI
MUL
The meaning of PRI
and UNI
are quite clear:
PRI
=> primary keyUNI
=> unique keyThe third possibility, MUL
, (which you asked about) is basically an index that is neither a primary key nor a unique key. The name comes from "multiple" because multiple occurrences of the same value are allowed. Straight from the MySQL documentation:
If
Key
isMUL
, the column is the first column of a nonunique index in which multiple occurrences of a given value are permitted within the column.
There is also a final caveat:
If more than one of the Key values applies to a given column of a table, Key displays the one with the highest priority, in the order
PRI
,UNI
,MUL
.
As a general note, the MySQL documentation is quite good. When in doubt, check it out!
A small static custom method in a Util
class would help:
public static int getIndex(Set<? extends Object> set, Object value) {
int result = 0;
for (Object entry:set) {
if (entry.equals(value)) return result;
result++;
}
return -1;
}
If you need/want one class that is a Set
and offers a getIndex()
method, I strongly suggest to implement a new Set
and use the decorator pattern:
public class IndexAwareSet<T> implements Set {
private Set<T> set;
public IndexAwareSet(Set<T> set) {
this.set = set;
}
// ... implement all methods from Set and delegate to the internal Set
public int getIndex(T entry) {
int result = 0;
for (T entry:set) {
if (entry.equals(value)) return result;
result++;
}
return -1;
}
}
You can convert anything to a String as long as you choose what to print. The requirement was quite simple since Objet.toString()
can return a default dumb string: package.classname + @ + object number
.
If your print method should return an XML or JSON serialization, the basic result of toString() wouldn't be acceptable. Even though the method succeed.
Here is a simple example to show that Java can be dumb
public class MockTest{
String field1;
String field2;
public MockTest(String field1,String field2){
this.field1=field1;
this.field2=field2;
}
}
System.out.println(new MockTest("a","b");
will print something package.Mocktest@3254487
! Even though you only have two String members and this could be implemented to print
Mocktest@3254487{"field1":"a","field2":"b"}
(or pretty much how it appears in the debbuger)
good question... I've been looking for this functionality for long too...
after several tests and tricks it seem the better solution is the more obvious one...
--> best way I found to do it, preventing parser integrity fail, is reusing REM:
echo this will show until the next REM &REM this will not show
you can also use multiline with the "NULL LABEL" trick... (dont forget the ^ at the end of the line for continuity)
::(^
this is a multiline^
comment... inside a null label!^
dont forget the ^caret at the end-of-line^
to assure continuity of text^
)
Quit postgres and restart it. Simple, but works every time for me, where other cli commands sometimes don't.
You may use formatters after picking value inside your datepicker directive. For example
angular.module('foo').directive('bar', function() {
return {
require: '?ngModel',
link: function(scope, elem, attrs, ctrl) {
if (!ctrl) return;
ctrl.$formatters.push(function(value) {
if (value) {
// format and return date here
}
return undefined;
});
}
};
});
LINK.
this is the implementation of O(n*lg n) using binary search implementation inside a loop.
#include <iostream>
using namespace std;
bool *inMemory;
int pairSum(int arr[], int n, int k)
{
int count = 0;
if(n==0)
return count;
for (int i = 0; i < n; ++i)
{
int start = 0;
int end = n-1;
while(start <= end)
{
int mid = start + (end-start)/2;
if(i == mid)
break;
else if((arr[i] + arr[mid]) == k && !inMemory[i] && !inMemory[mid])
{
count++;
inMemory[i] = true;
inMemory[mid] = true;
}
else if(arr[i] + arr[mid] >= k)
{
end = mid-1;
}
else
start = mid+1;
}
}
return count;
}
int main()
{
int arr[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
inMemory = new bool[10];
for (int i = 0; i < 10; ++i)
{
inMemory[i] = false;
}
cout << pairSum(arr, 10, 11) << endl;
return 0;
}
You need additional plugin for this.
take a look at this plugin
Response.Cookies
contains the cookies that will be sent back to the browser. If you want to know whether a cookie exists, you should probably look into Request.Cookies
.
Anyway, to see if a cookie exists, you can check Cookies.Get(string)
. However, if you use this method on the Response object and the cookie doesn't exist, then that cookie will be created.
See MSDN Reference for HttpCookieCollection.Get
Method (String)
$content = $_POST['content_name'];
$lines = explode("\n", $content);
foreach( $lines as $index => $line )
{
$lines[$index] = $line . '<br/>';
}
// $lines contains your lines
You can use netstat this way for much faster results:
On Linux:
netstat -lnt | awk '$6 == "LISTEN" && $4 ~ /\.445$/'
On Mac:
netstat -anp tcp | awk '$6 == "LISTEN" && $4 ~ /\.445$/'
This will output a list of processes listening on the port (445 in this example) or it will output nothing if the port is free.
Use the following syntax:
$ for i in {01..05}; do echo "$i"; done
01
02
03
04
05
Disclaimer: Leading zeros only work in >=bash-4
.
If you want to use printf
, nothing prevents you from putting its result in a variable for further use:
$ foo=$(printf "%02d" 5)
$ echo "${foo}"
05
A few comments:
analog=True
in the call to butter
, and you should use scipy.signal.freqz
(not freqs
) to generate the frequency response.Here's my modified version of your script, followed by the plot that it generates.
import numpy as np
from scipy.signal import butter, lfilter, freqz
import matplotlib.pyplot as plt
def butter_lowpass(cutoff, fs, order=5):
nyq = 0.5 * fs
normal_cutoff = cutoff / nyq
b, a = butter(order, normal_cutoff, btype='low', analog=False)
return b, a
def butter_lowpass_filter(data, cutoff, fs, order=5):
b, a = butter_lowpass(cutoff, fs, order=order)
y = lfilter(b, a, data)
return y
# Filter requirements.
order = 6
fs = 30.0 # sample rate, Hz
cutoff = 3.667 # desired cutoff frequency of the filter, Hz
# Get the filter coefficients so we can check its frequency response.
b, a = butter_lowpass(cutoff, fs, order)
# Plot the frequency response.
w, h = freqz(b, a, worN=8000)
plt.subplot(2, 1, 1)
plt.plot(0.5*fs*w/np.pi, np.abs(h), 'b')
plt.plot(cutoff, 0.5*np.sqrt(2), 'ko')
plt.axvline(cutoff, color='k')
plt.xlim(0, 0.5*fs)
plt.title("Lowpass Filter Frequency Response")
plt.xlabel('Frequency [Hz]')
plt.grid()
# Demonstrate the use of the filter.
# First make some data to be filtered.
T = 5.0 # seconds
n = int(T * fs) # total number of samples
t = np.linspace(0, T, n, endpoint=False)
# "Noisy" data. We want to recover the 1.2 Hz signal from this.
data = np.sin(1.2*2*np.pi*t) + 1.5*np.cos(9*2*np.pi*t) + 0.5*np.sin(12.0*2*np.pi*t)
# Filter the data, and plot both the original and filtered signals.
y = butter_lowpass_filter(data, cutoff, fs, order)
plt.subplot(2, 1, 2)
plt.plot(t, data, 'b-', label='data')
plt.plot(t, y, 'g-', linewidth=2, label='filtered data')
plt.xlabel('Time [sec]')
plt.grid()
plt.legend()
plt.subplots_adjust(hspace=0.35)
plt.show()