Open up eclipse, go to "Help -> Install New Software". Enter:
entry from the "Work with" dropdown.
Under the "Web, XML, Java EE and OSGi Enterprise Developmet" category, select "PHP Development Tools (PDT) SDK Feature 3.1.1.201209101312".
Install
If you use homebrew (which I recommend), you can install selenium using:
brew install selenium-server-standalone
Running
updated -port port_number
To run selenium, do: selenium-server -port 4444
For more options: selenium-server -help
You can do this:
Declare @dbName nvarchar(max);
SET @dbName = 'TESTDB';
Declare @SQL nvarchar(max);
select @SQL = 'USE ' + @dbName +'; {can put command(s) here}';
EXEC (@SQL);
{but not here!}
This means you can do a recursive select like the following:
Declare @dbName nvarchar(max);
SET @dbName = 'TESTDB';
Declare @SQL nvarchar(max);
SELECT @SQL = 'USE ' + @dbName + '; ' +(Select ... {query here}
For XML Path(''),Type)
.value('text()[1]','nvarchar(max)');
Exec (@SQL)
You can not use multiple router outlets in the same template with ngIf
condition. But you can use it in the way shown below:
<div *ngIf="loading">
<span>loading true</span>
<ng-container *ngTemplateOutlet="template"></ng-container>
</div>
<div *ngIf="!loading">
<span>loading false</span>
<ng-container *ngTemplateOutlet="template"></ng-container>
</div>
<ng-template #template>
<router-outlet> </router-outlet>
</ng-template>
Just send xml bytes directly:
#!/usr/bin/env python2
# -*- coding: utf-8 -*-
import requests
xml = """<?xml version='1.0' encoding='utf-8'?>
<a>?</a>"""
headers = {'Content-Type': 'application/xml'} # set what your server accepts
print requests.post('http://httpbin.org/post', data=xml, headers=headers).text
{
"origin": "x.x.x.x",
"files": {},
"form": {},
"url": "http://httpbin.org/post",
"args": {},
"headers": {
"Content-Length": "48",
"Accept-Encoding": "identity, deflate, compress, gzip",
"Connection": "keep-alive",
"Accept": "*/*",
"User-Agent": "python-requests/0.13.9 CPython/2.7.3 Linux/3.2.0-30-generic",
"Host": "httpbin.org",
"Content-Type": "application/xml"
},
"json": null,
"data": "<?xml version='1.0' encoding='utf-8'?>\n<a>\u0431</a>"
}
You can create a GitHub repo via the command line using the GitHub API. Check out the repository API. If you scroll down about a third of the way, you'll see a section entitled "Create" that explains how to create a repo via the API (right above that is a section that explains how to fork a repo with the API, too). Obviously you can't use git
to do this, but you can do it via the command line with a tool like curl
.
Outside of the API, there's no way to create a repo on GitHub via the command line. As you noted, GitHub doesn't allow shell access, etc., so aside from the GitHub API, the only way to create a repo is through GitHub's web interface.
Often in Node.js applications a .json is needed. With TypeScript 2.9, --resolveJsonModule allows for importing, extracting types from and generating .json files.
Example #
// tsconfig.json_x000D_
_x000D_
{_x000D_
"compilerOptions": {_x000D_
"module": "commonjs",_x000D_
"resolveJsonModule": true,_x000D_
"esModuleInterop": true_x000D_
}_x000D_
}_x000D_
_x000D_
// .ts_x000D_
_x000D_
import settings from "./settings.json";_x000D_
_x000D_
settings.debug === true; // OK_x000D_
settings.dry === 2; // Error: Operator '===' cannot be applied boolean and number_x000D_
_x000D_
_x000D_
// settings.json_x000D_
_x000D_
{_x000D_
"repo": "TypeScript",_x000D_
"dry": false,_x000D_
"debug": false_x000D_
}
_x000D_
Easiest and simplest way:
var days = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
var dayName = days[new Date().getDay()];
Another thing to notice is you are trying to convert a date in mm/dd/yyyy but if you have any plans of comparing this converted date to some other date then make sure to convert it in yyyy-mm-dd format only since to_char literally converts it into a string and with any other format we will get undesired result. For any more explanation follow this: Comparing Dates in Oracle SQL
--save-dev
is used to save the package for development purpose.
Example: unit tests, minification.. --save
is used to save the
package required for the application to run.I faced same problem worked on it around 3 days. I noticed as our number of records are not much our senior developer keeps 2 images and Fingerprint in database. When I try to fetch this hex values it taking long time, I calculate average time to execute my procedure its around 38 seconds. The default commandtimeout is 30 seconds so its less than average time required to run my stored procedure. I set my commandtimeout like below
cmd.CommandTimeout = 50
and its working fine but sometimes if your query takes more than 50 seconds it will prompt same error.
Update: Incredibly frustrating, but the Google redirect of the maven.google.com
repo seems to mess with loading the resources. If you instead set your repository to
maven { url 'https://dl.google.com/dl/android/maven2' }
the files will resolve. You can prove this out by attempting to get the fully qualified resource at https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.0.0-alpha1/gradle-3.0.0-alpha1.pom
3.0.0 Alpha
This is because currently the gradle:3.0.0-alpha1
is only being served via the new 'https://maven.google.com'
repository, but the site currently 404s at that location otherwise, being a public directory, you'd see a tree listing of all the files available by simply navigating to that location in your browser. When they resolve their outage, your CI build should pass immediately.
You can regroup your steps functions calls in a facade function :
sub facade()
call step1()
call step2()
call step3()
call step4()
call step5()
end sub
Then, let your error handling be in an upper function that calls the facade :
sub main()
On error resume next
call facade()
If Err.Number <> 0 Then
' MsgBox or whatever. You may want to display or log your error there
msgbox Err.Description
Err.Clear
End If
On Error Goto 0
end sub
Now, let's suppose step3()
raises an error. Since facade()
doesn't handle errors (there is no On error resume next
in facade()
), the error will be returned to main()
and step4()
and step5()
won't be executed.
Your error handling is now refactored in 1 code block
Open app page on Google Play:
Intent intent = new Intent(Intent.ACTION_VIEW,
Uri.parse("market://details?id=" + context.getPackageName()));
startActivity(intent);
There are several ways to do this:
$collection = Mage::getModel('...')
->getCollection()
->setPageSize(20)
->setCurPage(1);
Will get first 20 records.
Here is the alternative and maybe more readable way:
$collection = Mage::getModel('...')->getCollection();
$collection->getSelect()->limit(20);
This will call Zend Db limit. You can set offset as second parameter.
Here's the proper way to do things:
<?PHP
$sql = 'some query...';
$result = mysql_query($q);
if (! $result){
throw new My_Db_Exception('Database error: ' . mysql_error());
}
while($row = mysql_fetch_assoc($result)){
//handle rows.
}
Note the check on (! $result) -- if your $result is a boolean, it's certainly false, and it means there was a database error, meaning your query was probably bad.
Try the following code:
SELECT *
FROM users
WHERE firstname IN ('joe','jane');
I second opinions that you should choose the iteration method according to your need. I would suggest you actually not to ever loop through native Array
with for in
structure. It is way slower and, as Chase Seibert pointed at the moment ago, not compatible with Prototype framework.
There is an excellent benchmark on different looping styles that you absolutely should take a look at if you work with JavaScript. Do not do early optimizations, but you should keep that stuff somewhere in the back of your head.
I would use for in
to get all properties of an object, which is especially useful when debugging your scripts. For example, I like to have this line handy when I explore unfamiliar object:
l = ''; for (m in obj) { l += m + ' => ' + obj[m] + '\n' } console.log(l);
It dumps content of the whole object (together with method bodies) to my Firebug log. Very handy.
To add a linked text in a text view, you can use the "footer_text" string resource example below and also edit your onCreate method for your activity, you can use the example below
string.xml
<?xml version="1.0" charset="utf-8"?>
<resources>
<string name="app_name">Name of My Application</string>
<string name="footer_text">
<a href="https://www.google.com/tos">Terms of Service</a>
<a href="https://www.google.com/contact">Contact</a>
<a href="https://www.google.com/privacy">Privacy Policy</a>
</string>
</resources>
MainActivity.java
...
@Override
public void onCreate(Bundle savedInstance) {
super.onCreate(savedInstance);
setContentView(R.layout.activity_main);
TextView textView = findViewById(R.id.textViewLink);
textView.setMovementMethod(LinkMovermentMethod.getInstance());
}
....
As @Antonijn stated, you need to execute getTitle method, by adding parentheses:
string t = obj.getTitle();
But I want to add, that you are doing Java programming in C#. There is concept of properties (pair of get and set methods), which should be used in such cases:
public class Pin
{
private string _title;
// you don't need to define empty constructor
// public Pin() { }
public string Title
{
get { return _title; }
set { _title = value; }
}
}
And even more, in this case you can ask compiler not only for get and set methods generation, but also for back storage generation, via auto-impelemented property usage:
public class Pin
{
public string Title { get; set; }
}
And now you don't need to execute method, because properties used like fields:
foreach (Pin obj in ClassListPin.pins)
{
string t = obj.Title;
}
I got a bad result with git push origin branch1:branch2
command:
In my case, branch2
is deleted and branch1
has been updated with some new changes.
Hence, if you want only the changes push on the branch2
from the branch1
, try procedures below:
branch1
: git add .
branch1
: git commit -m 'comments'
On branch1
: git push origin branch1
On branch2
: git pull origin branch1
On branch1
: revert to the previous commit.
You can do bit manipulations like below to obtain the size of primitives:
public int sizeofInt() {
int i = 1, j = 0;
while (i != 0) {
i = (i<<1); j++;
}
return j;
}
public int sizeofChar() {
char i = 1, j = 0;
while (i != 0) {
i = (char) (i<<1); j++;
}
return j;
}
Encryption has not only cpu, but also some network overhead.
It's not "plumbing", but it'll do exactly what you want:
$ git log --format=%B -n 1 <commit>
If you absolutely need a "plumbing" command (not sure why that's a requirement), you can use rev-list
:
$ git rev-list --format=%B --max-count=1 <commit>
Although rev-list
will also print out the commit sha (on the first line) in addition to the commit message.
I used two methods and I found one method useful over other. Here is my answer:
My input data:
crkmod_mpp = ['M13','M18','M19','M24']
testmod_mpp = ['M13','M14','M15','M16','M17','M18','M19','M20','M21','M22','M23','M24']
Method1: np.setdiff1d
I like this approach over other because it preserves the position
test= list(np.setdiff1d(testmod_mpp,crkmod_mpp))
print(test)
['M15', 'M16', 'M22', 'M23', 'M20', 'M14', 'M17', 'M21']
Method2: Though it gives same answer as in Method1 but disturbs the order
test = list(set(testmod_mpp).difference(set(crkmod_mpp)))
print(test)
['POA23', 'POA15', 'POA17', 'POA16', 'POA22', 'POA18', 'POA24', 'POA21']
Method1 np.setdiff1d
meets my requirements perfectly.
This answer for information.
For anyone else having the issue - none of the answers provided worked for me.
My case may be different to others but I had Android Studio
installed first which installs the SDK by default to: C:\Users\[user]\AppData\Local\Android\sdk
. We then decided to use Xamarin for our projects, so Xamarin was installed and installed an additional SDK by default, located here: C:\Program Files (x86)\Android\android-sdk
.
Changing Xamarin to match the same SDK path worked for me which I did in the registry (although through the VS settings I'd guess it's the same):
\HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Android SDK Tools\Path
Change the path to match the Android Studio
SDK path, close everything, start the VS Emulator, run Android Studio, ensure ADB integration
is off and try. It worked for me.
I know it is an old question but I came across this problem too. Just for the record, There is a little API in developers mozilla web page.
Yoy can get any cookie by name using only JS. The code is also cleaner IMHO (except for the long line, that I'm sure you can easily fix).
function getCookie(sKey) {
if (!sKey) { return null; }
return decodeURIComponent(document.cookie.replace(new RegExp("(?:(?:^|.*;)\\s*" + encodeURIComponent(sKey).replace(/[\-\.\+\*]/g, "\\$&") + "\\s*\\=\\s*([^;]*).*$)|^.*$"), "$1")) || null;
}
As stated in the comments be aware that this method assumes that the key and value were encoded using encodeURIComponent(). Remove decode & encodeURIComponent() if the key and value of the cookie were not encoded.
Wouldn't this work?
$ad->getcodes()->distinct()->get(['pid'])->count();
See here for discussion..
Also another important note. You have to set android.permission.ACCESS_NETWORK_STATE
in your AndroidManifest.xml for this to work.
_ how could I have found myself the information I needed in the online documentation?
You just have to read the documentation the the classes properly enough and you'll find all answers you are looking for. Check out the documentation on ConnectivityManager. The description tells you what to do.
Is this what you are trying?
Sub Sample()
Dim cb As Shape
Set cb = ActiveSheet.Shapes("Check Box 1")
If cb.OLEFormat.Object.Value = 1 Then
MsgBox "Checkbox is Checked"
Else
MsgBox "Checkbox is not Checked"
End If
End Sub
Replace Activesheet
with the relevant sheetname. Also replace Check Box 1
with the relevant checkbox name.
you can use the weight value specified in the Google Fonts.
body{
font-family: 'Heebo', sans-serif;
font-weight: 100;
}
I was able to go around the whole thing by replacing the context reference from this
or Context.this
to getapplicationcontext
.
Use a negative lookahead and a negative lookbehind:
> s = "one two 3.4 5,6 seven.eight nine,ten"
> parts = re.split('\s|(?<!\d)[,.](?!\d)', s)
['one', 'two', '3.4', '5,6', 'seven', 'eight', 'nine', 'ten']
In other words, you always split by \s
(whitespace), and only split by commas and periods if they are not followed (?!\d)
or preceded (?<!\d)
by a digit.
DEMO.
EDIT: As per @verdesmarald comment, you may want to use the following instead:
> s = "one two 3.4 5,6 seven.eight nine,ten,1.2,a,5"
> print re.split('\s|(?<!\d)[,.]|[,.](?!\d)', s)
['one', 'two', '3.4', '5,6', 'seven', 'eight', 'nine', 'ten', '1.2', 'a', '5']
This will split "1.2,a,5"
into ["1.2", "a", "5"]
.
DEMO.
I'm leaving this answer for someone who gets in this scenario as I did.
I stumbled here and there before noticing that I mistakenly dragged and dropped the Support Library JAR file into my src folder and it was lying there. Since I had no idea how it happened or when I dropped it there, I could never imagine something was wrong there.
I was getting the same error, I found the problem after sometime and removed it. Project is now working fine.
Try this maybe :
Bootply : http://www.bootply.com/106527
Js :
$('input').on('click', function(){
var valeur = 0;
$('input:checked').each(function(){
if ( $(this).attr('value') > valeur )
{
valeur = $(this).attr('value');
}
});
$('.progress-bar').css('width', valeur+'%').attr('aria-valuenow', valeur);
});
HTML :
<div class="progress progress-striped active">
<div class="progress-bar" role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100">
</div>
</div>
<div class="row tasks">
<div class="col-md-6">
<p><span>Identify your campaign audience.</span>Who are we talking to here? Understand your buyer persona before launching into a campaign, so you can target them correctly.</p>
</div>
<div class="col-md-2">
<label>2014-01-29</label>
</div>
<div class="col-md-2">
<input name="progress" class="progress" type="checkbox" value="10">
</div>
<div class="col-md-2">
<input name="done" class="done" type="checkbox" value="20">
</div>
</div><!-- tasks -->
<div class="row tasks">
<div class="col-md-6">
<p><span>Set your goals + benchmarks</span>Having SMART goals can help you be
sure that you’ll have tangible results to share with the world (or your
boss) at the end of your campaign.</p>
</div>
<div class="col-md-2">
<label>2014-01-25</label>
</div>
<div class="col-md-2">
<input name="progress" class="progress" type="checkbox" value="30">
</div>
<div class="col-md-2">
<input name="done" class="done" type="checkbox" value="40">
</div>
</div><!-- tasks -->
Css
.tasks{
background-color: #F6F8F8;
padding: 10px;
border-radius: 5px;
margin-top: 10px;
}
.tasks span{
font-weight: bold;
}
.tasks input{
display: block;
margin: 0 auto;
margin-top: 10px;
}
.tasks a{
color: #000;
text-decoration: none;
border:none;
}
.tasks a:hover{
border-bottom: dashed 1px #0088cc;
}
.tasks label{
display: block;
text-align: center;
}
$(function(){_x000D_
$('input').on('click', function(){_x000D_
var valeur = 0;_x000D_
$('input:checked').each(function(){_x000D_
if ( $(this).attr('value') > valeur )_x000D_
{_x000D_
valeur = $(this).attr('value');_x000D_
}_x000D_
});_x000D_
$('.progress-bar').css('width', valeur+'%').attr('aria-valuenow', valeur); _x000D_
});_x000D_
_x000D_
});
_x000D_
.tasks{_x000D_
background-color: #F6F8F8;_x000D_
padding: 10px;_x000D_
border-radius: 5px;_x000D_
margin-top: 10px;_x000D_
}_x000D_
.tasks span{_x000D_
font-weight: bold;_x000D_
}_x000D_
.tasks input{_x000D_
display: block;_x000D_
margin: 0 auto;_x000D_
margin-top: 10px;_x000D_
}_x000D_
.tasks a{_x000D_
color: #000;_x000D_
text-decoration: none;_x000D_
border:none;_x000D_
}_x000D_
.tasks a:hover{_x000D_
border-bottom: dashed 1px #0088cc;_x000D_
}_x000D_
.tasks label{_x000D_
display: block;_x000D_
text-align: center;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>_x000D_
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
_x000D_
<div class="progress progress-striped active">_x000D_
<div class="progress-bar" role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100">_x000D_
</div>_x000D_
</div>_x000D_
<div class="row tasks">_x000D_
<div class="col-md-6">_x000D_
<p><span>Identify your campaign audience.</span>Who are we talking to here? Understand your buyer persona before launching into a campaign, so you can target them correctly.</p>_x000D_
</div>_x000D_
<div class="col-md-2">_x000D_
<label>2014-01-29</label>_x000D_
</div>_x000D_
<div class="col-md-2">_x000D_
<input name="progress" class="progress" type="checkbox" value="10">_x000D_
</div>_x000D_
<div class="col-md-2">_x000D_
<input name="done" class="done" type="checkbox" value="20">_x000D_
</div>_x000D_
</div><!-- tasks -->_x000D_
_x000D_
<div class="row tasks">_x000D_
<div class="col-md-6">_x000D_
<p><span>Set your goals + benchmarks</span>Having SMART goals can help you be_x000D_
sure that you’ll have tangible results to share with the world (or your_x000D_
boss) at the end of your campaign.</p>_x000D_
</div>_x000D_
<div class="col-md-2">_x000D_
<label>2014-01-25</label>_x000D_
</div>_x000D_
<div class="col-md-2">_x000D_
<input name="progress" class="progress" type="checkbox" value="30">_x000D_
</div>_x000D_
<div class="col-md-2">_x000D_
<input name="done" class="done" type="checkbox" value="40">_x000D_
</div>_x000D_
</div><!-- tasks -->
_x000D_
I think you try to get the remote host of the conneting user...
You can get a String like 'myuser@localhost' from the command:
SELECT USER()
You can split this result on the '@' sign, to get the parts:
-- delivers the "remote_host" e.g. "localhost"
SELECT SUBSTRING_INDEX(USER(), '@', -1)
-- delivers the user-name e.g. "myuser"
SELECT SUBSTRING_INDEX(USER(), '@', 1)
if you are conneting via ip address you will get the ipadress instead of the hostname.
You have to put the entire path as a parameter to os.path.split. See The docs. It doesn't work like string split.
In order to obtain the string in a Text
widget one can simply use get
method defined for Text
which accepts 1 to 2 arguments as start
and end
positions of characters, text_widget_object.get(start, end=None)
. If only start
is passed and end
isn't passed it returns only the single character positioned at start
, if end
is passed as well, it returns all characters in between positions start
and end
as string.
There are also special strings, that are variables to the underlying Tk. One of them would be "end"
or tk.END
which represents the variable position of the very last char in the Text
widget. An example would be to returning all text in the widget, with text_widget_object.get('1.0', 'end')
or text_widget_object.get('1.0', 'end-1c')
if you don't want the last newline character.
See below demonstration that selects the characters in between the given positions with sliders:
try:
import tkinter as tk
except:
import Tkinter as tk
class Demo(tk.LabelFrame):
"""
A LabeFrame that in order to demonstrate the string returned by the
get method of Text widget, selects the characters in between the
given arguments that are set with Scales.
"""
def __init__(self, master, *args, **kwargs):
tk.LabelFrame.__init__(self, master, *args, **kwargs)
self.start_arg = ''
self.end_arg = None
self.position_frames = dict()
self._create_widgets()
self._layout()
self.update()
def _create_widgets(self):
self._is_two_args = tk.Checkbutton(self,
text="Use 2 positional arguments...")
self.position_frames['start'] = PositionFrame(self,
text="start='{}.{}'.format(line, column)")
self.position_frames['end'] = PositionFrame( self,
text="end='{}.{}'.format(line, column)")
self.text = TextWithStats(self, wrap='none')
self._widget_configs()
def _widget_configs(self):
self.text.update_callback = self.update
self._is_two_args.var = tk.BooleanVar(self, value=False)
self._is_two_args.config(variable=self._is_two_args.var,
onvalue=True, offvalue=False)
self._is_two_args['command'] = self._is_two_args_handle
for _key in self.position_frames:
self.position_frames[_key].line.slider['command'] = self.update
self.position_frames[_key].column.slider['command'] = self.update
def _layout(self):
self._is_two_args.grid(sticky='nsw', row=0, column=1)
self.position_frames['start'].grid(sticky='nsew', row=1, column=0)
#self.position_frames['end'].grid(sticky='nsew', row=1, column=1)
self.text.grid(sticky='nsew', row=2, column=0,
rowspan=2, columnspan=2)
_grid_size = self.grid_size()
for _col in range(_grid_size[0]):
self.grid_columnconfigure(_col, weight=1)
for _row in range(_grid_size[1] - 1):
self.grid_rowconfigure(_row + 1, weight=1)
def _is_two_args_handle(self):
self.update_arguments()
if self._is_two_args.var.get():
self.position_frames['end'].grid(sticky='nsew', row=1, column=1)
else:
self.position_frames['end'].grid_remove()
def update(self, event=None):
"""
Updates slider limits, argument values, labels representing the
get method call.
"""
self.update_sliders()
self.update_arguments()
def update_sliders(self):
"""
Updates slider limits based on what's written in the text and
which line is selected.
"""
self._update_line_sliders()
self._update_column_sliders()
def _update_line_sliders(self):
if self.text.lines_length:
for _key in self.position_frames:
self.position_frames[_key].line.slider['state'] = 'normal'
self.position_frames[_key].line.slider['from_'] = 1
_no_of_lines = self.text.line_count
self.position_frames[_key].line.slider['to'] = _no_of_lines
else:
for _key in self.position_frames:
self.position_frames[_key].line.slider['state'] = 'disabled'
def _update_column_sliders(self):
if self.text.lines_length:
for _key in self.position_frames:
self.position_frames[_key].column.slider['state'] = 'normal'
self.position_frames[_key].column.slider['from_'] = 0
_line_no = int(self.position_frames[_key].line.slider.get())-1
_max_line_len = self.text.lines_length[_line_no]
self.position_frames[_key].column.slider['to'] = _max_line_len
else:
for _key in self.position_frames:
self.position_frames[_key].column.slider['state'] = 'disabled'
def update_arguments(self):
"""
Updates the values representing the arguments passed to the get
method, based on whether or not the 2nd positional argument is
active and the slider positions.
"""
_start_line_no = self.position_frames['start'].line.slider.get()
_start_col_no = self.position_frames['start'].column.slider.get()
self.start_arg = "{}.{}".format(_start_line_no, _start_col_no)
if self._is_two_args.var.get():
_end_line_no = self.position_frames['end'].line.slider.get()
_end_col_no = self.position_frames['end'].column.slider.get()
self.end_arg = "{}.{}".format(_end_line_no, _end_col_no)
else:
self.end_arg = None
self._update_method_labels()
self._select()
def _update_method_labels(self):
if self.end_arg:
for _key in self.position_frames:
_string = "text.get('{}', '{}')".format(
self.start_arg, self.end_arg)
self.position_frames[_key].label['text'] = _string
else:
_string = "text.get('{}')".format(self.start_arg)
self.position_frames['start'].label['text'] = _string
def _select(self):
self.text.focus_set()
self.text.tag_remove('sel', '1.0', 'end')
self.text.tag_add('sel', self.start_arg, self.end_arg)
if self.end_arg:
self.text.mark_set('insert', self.end_arg)
else:
self.text.mark_set('insert', self.start_arg)
class TextWithStats(tk.Text):
"""
Text widget that stores stats of its content:
self.line_count: the total number of lines
self.lines_length: the total number of characters per line
self.update_callback: can be set as the reference to the callback
to be called with each update
"""
def __init__(self, master, update_callback=None, *args, **kwargs):
tk.Text.__init__(self, master, *args, **kwargs)
self._events = ('<KeyPress>',
'<KeyRelease>',
'<ButtonRelease-1>',
'<ButtonRelease-2>',
'<ButtonRelease-3>',
'<Delete>',
'<<Cut>>',
'<<Paste>>',
'<<Undo>>',
'<<Redo>>')
self.line_count = None
self.lines_length = list()
self.update_callback = update_callback
self.update_stats()
self.bind_events_on_widget_to_callback( self._events,
self,
self.update_stats)
@staticmethod
def bind_events_on_widget_to_callback(events, widget, callback):
"""
Bind events on widget to callback.
"""
for _event in events:
widget.bind(_event, callback)
def update_stats(self, event=None):
"""
Update self.line_count, self.lines_length stats and call
self.update_callback.
"""
_string = self.get('1.0', 'end-1c')
_string_lines = _string.splitlines()
self.line_count = len(_string_lines)
del self.lines_length[:]
for _line in _string_lines:
self.lines_length.append(len(_line))
if self.update_callback:
self.update_callback()
class PositionFrame(tk.LabelFrame):
"""
A LabelFrame that has two LabelFrames which has Scales.
"""
def __init__(self, master, *args, **kwargs):
tk.LabelFrame.__init__(self, master, *args, **kwargs)
self._create_widgets()
self._layout()
def _create_widgets(self):
self.line = SliderFrame(self, orient='vertical', text="line=")
self.column = SliderFrame(self, orient='horizontal', text="column=")
self.label = tk.Label(self, text="Label")
def _layout(self):
self.line.grid(sticky='ns', row=0, column=0, rowspan=2)
self.column.grid(sticky='ew', row=0, column=1, columnspan=2)
self.label.grid(sticky='nsew', row=1, column=1)
self.grid_rowconfigure(1, weight=1)
self.grid_columnconfigure(1, weight=1)
class SliderFrame(tk.LabelFrame):
"""
A LabelFrame that encapsulates a Scale.
"""
def __init__(self, master, orient, *args, **kwargs):
tk.LabelFrame.__init__(self, master, *args, **kwargs)
self.slider = tk.Scale(self, orient=orient)
self.slider.pack(fill='both', expand=True)
if __name__ == '__main__':
root = tk.Tk()
demo = Demo(root, text="text.get(start, end=None)")
with open(__file__) as f:
demo.text.insert('1.0', f.read())
demo.text.update_stats()
demo.pack(fill='both', expand=True)
root.mainloop()
Use of folloing command is depreciated
hadoop job -list
hadoop job -kill $jobId
consider using
mapred job -list
mapred job -kill $jobId
This always brings my Motorola MB525 "online" again, after adb complains it would be "offline". I'm using OSX btw.
Keep in mind that the higher the resolution, the less likely the internet browser will be maximiced.
And some browsers have lateral bars too.
It depends on what you want to render, but I'd go with a variable width layout that doesn't break at about 800-900 width.
Height is not really a problem.
I suggest you to start with simple polynomial fit, scipy.optimize.curve_fit
tries to fit a function f
that you must know to a set of points.
This is a simple 3 degree polynomial fit using numpy.polyfit
and poly1d
, the first performs a least squares polynomial fit and the second calculates the new points:
import numpy as np
import matplotlib.pyplot as plt
points = np.array([(1, 1), (2, 4), (3, 1), (9, 3)])
# get x and y vectors
x = points[:,0]
y = points[:,1]
# calculate polynomial
z = np.polyfit(x, y, 3)
f = np.poly1d(z)
# calculate new x's and y's
x_new = np.linspace(x[0], x[-1], 50)
y_new = f(x_new)
plt.plot(x,y,'o', x_new, y_new)
plt.xlim([x[0]-1, x[-1] + 1 ])
plt.show()
For Mac/Linux debug keystore, the Android docs have:
keytool -exportcert -list -v \
-alias androiddebugkey -keystore ~/.android/debug.keystore
But there is something that may not be obvious: If you put the backslash, make sure to do a shift + return
in terminal after the backslash so that the second that starts with -alias
is on a new line. Simply pasting as-is will not work.
Your terminal (if successful) will look something like this:
$ keytool -exportcert -list -v \
? -alias androiddebugkey -keystore ~/.android/debug.keystore
Enter keystore password:
The default debug password is: android
Side note: In Android Studio you can manage signing in:
File > Project Structure > Modules - (Your App) > Signing
An abstract class is like the normal class it contains variables it contains protected variables functions it contains constructor only one thing is different it contains abstract method.
The abstract method means an empty method without definition so only one difference in abstract class we can not create an object of abstract class
Abstract must contains the abstract method and those methods must be defined in its inheriting class.
The sort
method and sorted
function allow you to provide a custom function to extract the key used for comparison:
>>> ls = ['Q1.3', 'Q6.1', 'Q1.2']
>>> sorted(ls, key=lambda x: float(x[1:]))
['Q1.2', 'Q1.3', 'Q6.1']
For those who are learning node/express (just like me): do not use wildcard routing if possible!
I also wanted to implement the routing for GET /users/:id/whatever using wildcard routing. This is how I got here.
More info: https://blog.praveen.science/wildcard-routing-is-an-anti-pattern/
There are way too many ways to possibly discuss that you probably don't care about. You can hack of course - strace bash, or do all sorts of black magic running Bash in gdb.
You actually have two completely different examples there. <<<'string'
is already writing a string to a file. If anything is acceptable other than printf
, echo
, and cat
, you can use many other commands to behave like cat (sed, awk, tee, etc).
$ cp /dev/stdin ./tmpfooblah <<<'hello world'; cat tmpfooblah
hello world
Or hell, depending on how you've compiled Bash.
$ enable -f /usr/lib/bash/print print; print 'hello world' >tmpfile
If you want to use only bash strings and redirection, in pure bash, with no hacking, and no loadables, it is not possible. In ksh93 however, it is possible.
$ rm tmpfooblah; <<<'hello world' >tmpfooblah <##@(&!()); cat tmpfooblah
hello world
A similar answer with Step by Step guide.
pom.xml
or build.gradle
Maven
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
Gradle
dependencies {
compile("org.springframework.boot:spring-boot-devtools")
}
http://localhost:8080/h2-console/
jdbc:h2:mem:testdb
as JDBC URLFirst check your listener is on or off. Go to net manager then Local -> service naming -> orcl. Then change your HOST NAME and put your PC name. Now go to LISTENER and change the HOST and put your PC name.
You have declared your Class as:
@Table( name = "foobar" )
public class FooBar {
You need to write the Class Name for the search.
from FooBar
$('input[type=text], textarea').css({width: '90%'});
That uses standard CSS selectors, jQuery also has a set of pseudo-selector filters for various form elements, for example:
$(':text').css({width: '90%'});
will match all <input type="text">
elements. See Selectors documentation for more info.
I tried everything on the post but nothing had worked. I then changed the .htaccess snippet that ErJab put up to read:
RewriteRule ^(.*)$ 'folder_name'/index.php/$1 [L]
The above line fixed it for me. where *folder_name* is the magento root folder.
Hope this helps!
I saw some contradictions in the answers above, I just tried the following on Oracle 12c and the following is correct :
LEFT OUTER JOIN
SELECT *
FROM A, B
WHERE A.column = B.column(+)
RIGHT OUTER JOIN
SELECT *
FROM A, B
WHERE B.column(+) = A.column
Aside from limiting the columns selected to reduce bandwidth and memory:
DataTable t;
t.Columns.Remove("columnName");
t.Columns.RemoveAt(columnIndex);
This also works:
Model:
public class ViewModel
{
public HttpPostedFileBase File{ get; set; }
}
View:
@using (Html.BeginForm("Action", "Controller", FormMethod.Post, new
{ enctype = "multipart/form-data" }))
{
@Html.TextBoxFor(m => m.File, new { type = "file" })
}
Controller action:
[HttpPost]
public ActionResult Action(ViewModel model)
{
if (ModelState.IsValid)
{
var postedFile = Request.Files["File"];
// now you can get and validate the file type:
var isFileSupported= IsFileSupported(postedFile);
}
}
public bool IsFileSupported(HttpPostedFileBase file)
{
var isSupported = false;
switch (file.ContentType)
{
case ("image/gif"):
isSupported = true;
break;
case ("image/jpeg"):
isSupported = true;
break;
case ("image/png"):
isSupported = true;
break;
case ("audio/mp3"):
isSupported = true;
break;
case ("audio/wav"):
isSupported = true;
break;
}
return isSupported;
}
I achieved satisfying results with:
min-height: 100%;
min-width: 100%;
this way you always maintain the aspect ratio.
The complete css for an image that will replace "object-fit: cover;":
width: auto;
height: auto;
min-width: 100%;
min-height: 100%;
position: absolute;
right: 50%;
transform: translate(50%, 0);
A simple workaround:
config.js
export default
{
// my json here...
}
then...
import config from '../config.js'
does not allow import of existing .json files, but does a job.
And when you want all tables for some reason ?
You can generate these commands in SSMS:
SELECT
CONCAT('sqlcmd -S ',
'Your(local?)SERVERhere'
,' -d',
'YourDB'
,' -E -s, -W -Q "SELECT * FROM ',
TABLE_NAME,
'" >',
TABLE_NAME,
'.csv') FROM INFORMATION_SCHEMA.TABLES
And get again rows like this
sqlcmd -S ... -d... -E -s, -W -Q "SELECT * FROM table1" >table1.csv
sqlcmd -S ... -d... -E -s, -W -Q "SELECT * FROM table2" >table2.csv
...
There is also option to use better TAB as delimiter, but it would need a strange Unicode character - using Alt+9 in CMD, it came like this ? (Unicode CB25), but works only by copy/paste to command line not in batch.
Interestingly most other answers suffer from these two problems:
I've recently written an article on the topic: A Probably Incomplete, Comprehensive Guide to the Many Different Ways to JOIN Tables in SQL, which I'll summarise here.
This is why Venn diagrams explain them so inaccurately, because a JOIN creates a cartesian product between the two joined tables. Wikipedia illustrates it nicely:
The SQL syntax for cartesian products is CROSS JOIN
. For example:
SELECT *
-- This just generates all the days in January 2017
FROM generate_series(
'2017-01-01'::TIMESTAMP,
'2017-01-01'::TIMESTAMP + INTERVAL '1 month -1 day',
INTERVAL '1 day'
) AS days(day)
-- Here, we're combining all days with all departments
CROSS JOIN departments
Which combines all rows from one table with all rows from the other table:
Source:
+--------+ +------------+
| day | | department |
+--------+ +------------+
| Jan 01 | | Dept 1 |
| Jan 02 | | Dept 2 |
| ... | | Dept 3 |
| Jan 30 | +------------+
| Jan 31 |
+--------+
Result:
+--------+------------+
| day | department |
+--------+------------+
| Jan 01 | Dept 1 |
| Jan 01 | Dept 2 |
| Jan 01 | Dept 3 |
| Jan 02 | Dept 1 |
| Jan 02 | Dept 2 |
| Jan 02 | Dept 3 |
| ... | ... |
| Jan 31 | Dept 1 |
| Jan 31 | Dept 2 |
| Jan 31 | Dept 3 |
+--------+------------+
If we just write a comma separated list of tables, we'll get the same:
-- CROSS JOINing two tables:
SELECT * FROM table1, table2
An INNER JOIN
is just a filtered CROSS JOIN
where the filter predicate is called Theta
in relational algebra.
For instance:
SELECT *
-- Same as before
FROM generate_series(
'2017-01-01'::TIMESTAMP,
'2017-01-01'::TIMESTAMP + INTERVAL '1 month -1 day',
INTERVAL '1 day'
) AS days(day)
-- Now, exclude all days/departments combinations for
-- days before the department was created
JOIN departments AS d ON day >= d.created_at
Note that the keyword INNER
is optional (except in MS Access).
(look at the article for result examples)
A special kind of Theta-JOIN is equi JOIN, which we use most. The predicate joins the primary key of one table with the foreign key of another table. If we use the Sakila database for illustration, we can write:
SELECT *
FROM actor AS a
JOIN film_actor AS fa ON a.actor_id = fa.actor_id
JOIN film AS f ON f.film_id = fa.film_id
This combines all actors with their films.
Or also, on some databases:
SELECT *
FROM actor
JOIN film_actor USING (actor_id)
JOIN film USING (film_id)
The USING()
syntax allows for specifying a column that must be present on either side of a JOIN operation's tables and creates an equality predicate on those two columns.
Other answers have listed this "JOIN type" separately, but that doesn't make sense. It's just a syntax sugar form for equi JOIN, which is a special case of Theta-JOIN or INNER JOIN. NATURAL JOIN simply collects all columns that are common to both tables being joined and joins USING()
those columns. Which is hardly ever useful, because of accidental matches (like LAST_UPDATE
columns in the Sakila database).
Here's the syntax:
SELECT *
FROM actor
NATURAL JOIN film_actor
NATURAL JOIN film
Now, OUTER JOIN
is a bit different from INNER JOIN
as it creates a UNION
of several cartesian products. We can write:
-- Convenient syntax:
SELECT *
FROM a LEFT JOIN b ON <predicate>
-- Cumbersome, equivalent syntax:
SELECT a.*, b.*
FROM a JOIN b ON <predicate>
UNION ALL
SELECT a.*, NULL, NULL, ..., NULL
FROM a
WHERE NOT EXISTS (
SELECT * FROM b WHERE <predicate>
)
No one wants to write the latter, so we write OUTER JOIN
(which is usually better optimised by databases).
Like INNER
, the keyword OUTER
is optional, here.
OUTER JOIN
comes in three flavours:
LEFT [ OUTER ] JOIN
: The left table of the JOIN
expression is added to the union as shown above.RIGHT [ OUTER ] JOIN
: The right table of the JOIN
expression is added to the union as shown above.FULL [ OUTER ] JOIN
: Both tables of the JOIN
expression are added to the union as shown above.All of these can be combined with the keyword USING()
or with NATURAL
(I've actually had a real world use-case for a NATURAL FULL JOIN
recently)
There are some historic, deprecated syntaxes in Oracle and SQL Server, which supported OUTER JOIN
already before the SQL standard had a syntax for this:
-- Oracle
SELECT *
FROM actor a, film_actor fa, film f
WHERE a.actor_id = fa.actor_id(+)
AND fa.film_id = f.film_id(+)
-- SQL Server
SELECT *
FROM actor a, film_actor fa, film f
WHERE a.actor_id *= fa.actor_id
AND fa.film_id *= f.film_id
Having said so, don't use this syntax. I just list this here so you can recognise it from old blog posts / legacy code.
OUTER JOIN
Few people know this, but the SQL standard specifies partitioned OUTER JOIN
(and Oracle implements it). You can write things like this:
WITH
-- Using CONNECT BY to generate all dates in January
days(day) AS (
SELECT DATE '2017-01-01' + LEVEL - 1
FROM dual
CONNECT BY LEVEL <= 31
),
-- Our departments
departments(department, created_at) AS (
SELECT 'Dept 1', DATE '2017-01-10' FROM dual UNION ALL
SELECT 'Dept 2', DATE '2017-01-11' FROM dual UNION ALL
SELECT 'Dept 3', DATE '2017-01-12' FROM dual UNION ALL
SELECT 'Dept 4', DATE '2017-04-01' FROM dual UNION ALL
SELECT 'Dept 5', DATE '2017-04-02' FROM dual
)
SELECT *
FROM days
LEFT JOIN departments
PARTITION BY (department) -- This is where the magic happens
ON day >= created_at
Parts of the result:
+--------+------------+------------+
| day | department | created_at |
+--------+------------+------------+
| Jan 01 | Dept 1 | | -- Didn't match, but still get row
| Jan 02 | Dept 1 | | -- Didn't match, but still get row
| ... | Dept 1 | | -- Didn't match, but still get row
| Jan 09 | Dept 1 | | -- Didn't match, but still get row
| Jan 10 | Dept 1 | Jan 10 | -- Matches, so get join result
| Jan 11 | Dept 1 | Jan 10 | -- Matches, so get join result
| Jan 12 | Dept 1 | Jan 10 | -- Matches, so get join result
| ... | Dept 1 | Jan 10 | -- Matches, so get join result
| Jan 31 | Dept 1 | Jan 10 | -- Matches, so get join result
The point here is that all rows from the partitioned side of the join will wind up in the result regardless if the JOIN
matched anything on the "other side of the JOIN". Long story short: This is to fill up sparse data in reports. Very useful!
Seriously? No other answer got this? Of course not, because it doesn't have a native syntax in SQL, unfortunately (just like ANTI JOIN below). But we can use IN()
and EXISTS()
, e.g. to find all actors who have played in films:
SELECT *
FROM actor a
WHERE EXISTS (
SELECT * FROM film_actor fa
WHERE a.actor_id = fa.actor_id
)
The WHERE a.actor_id = fa.actor_id
predicate acts as the semi join predicate. If you don't believe it, check out execution plans, e.g. in Oracle. You'll see that the database executes a SEMI JOIN operation, not the EXISTS()
predicate.
This is just the opposite of SEMI JOIN (be careful not to use NOT IN
though, as it has an important caveat)
Here are all the actors without films:
SELECT *
FROM actor a
WHERE NOT EXISTS (
SELECT * FROM film_actor fa
WHERE a.actor_id = fa.actor_id
)
Some folks (especially MySQL people) also write ANTI JOIN like this:
SELECT *
FROM actor a
LEFT JOIN film_actor fa
USING (actor_id)
WHERE film_id IS NULL
I think the historic reason is performance.
OMG, this one is too cool. I'm the only one to mention it? Here's a cool query:
SELECT a.first_name, a.last_name, f.*
FROM actor AS a
LEFT OUTER JOIN LATERAL (
SELECT f.title, SUM(amount) AS revenue
FROM film AS f
JOIN film_actor AS fa USING (film_id)
JOIN inventory AS i USING (film_id)
JOIN rental AS r USING (inventory_id)
JOIN payment AS p USING (rental_id)
WHERE fa.actor_id = a.actor_id -- JOIN predicate with the outer query!
GROUP BY f.film_id
ORDER BY revenue DESC
LIMIT 5
) AS f
ON true
It will find the TOP 5 revenue producing films per actor. Every time you need a TOP-N-per-something query, LATERAL JOIN
will be your friend. If you're a SQL Server person, then you know this JOIN
type under the name APPLY
SELECT a.first_name, a.last_name, f.*
FROM actor AS a
OUTER APPLY (
SELECT f.title, SUM(amount) AS revenue
FROM film AS f
JOIN film_actor AS fa ON f.film_id = fa.film_id
JOIN inventory AS i ON f.film_id = i.film_id
JOIN rental AS r ON i.inventory_id = r.inventory_id
JOIN payment AS p ON r.rental_id = p.rental_id
WHERE fa.actor_id = a.actor_id -- JOIN predicate with the outer query!
GROUP BY f.film_id
ORDER BY revenue DESC
LIMIT 5
) AS f
OK, perhaps that's cheating, because a LATERAL JOIN
or APPLY
expression is really a "correlated subquery" that produces several rows. But if we allow for "correlated subqueries", we can also talk about...
This is only really implemented by Oracle and Informix (to my knowledge), but it can be emulated in PostgreSQL using arrays and/or XML and in SQL Server using XML.
MULTISET
produces a correlated subquery and nests the resulting set of rows in the outer query. The below query selects all actors and for each actor collects their films in a nested collection:
SELECT a.*, MULTISET (
SELECT f.*
FROM film AS f
JOIN film_actor AS fa USING (film_id)
WHERE a.actor_id = fa.actor_id
) AS films
FROM actor
As you have seen, there are more types of JOIN than just the "boring" INNER
, OUTER
, and CROSS JOIN
that are usually mentioned. More details in my article. And please, stop using Venn diagrams to illustrate them.
In the context of use within languages, regular expressions act on strings, not lines. So you should be able to use the regex normally, assuming that the input string has multiple lines.
In this case, the given regex will match the entire string, since "<FooBar>" is present. Depending on the specifics of the regex implementation, the $1 value (obtained from the "(.*)") will either be "fghij" or "abcde\nfghij". As others have said, some implementations allow you to control whether the "." will match the newline, giving you the choice.
Line-based regular expression use is usually for command line things like egrep.
This works for me...
#region AddressOf
/// <summary>
/// Provides the current address of the given object.
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
public static System.IntPtr AddressOf(object obj)
{
if (obj == null) return System.IntPtr.Zero;
System.TypedReference reference = __makeref(obj);
System.TypedReference* pRef = &reference;
return (System.IntPtr)pRef; //(&pRef)
}
/// <summary>
/// Provides the current address of the given element
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <returns></returns>
[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
public static System.IntPtr AddressOf<T>(T t)
//refember ReferenceTypes are references to the CLRHeader
//where TOriginal : struct
{
System.TypedReference reference = __makeref(t);
return *(System.IntPtr*)(&reference);
}
[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
static System.IntPtr AddressOfRef<T>(ref T t)
//refember ReferenceTypes are references to the CLRHeader
//where TOriginal : struct
{
System.TypedReference reference = __makeref(t);
System.TypedReference* pRef = &reference;
return (System.IntPtr)pRef; //(&pRef)
}
/// <summary>
/// Returns the unmanaged address of the given array.
/// </summary>
/// <param name="array"></param>
/// <returns><see cref="IntPtr.Zero"/> if null, otherwise the address of the array</returns>
[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
public static System.IntPtr AddressOfByteArray(byte[] array)
{
if (array == null) return System.IntPtr.Zero;
fixed (byte* ptr = array)
return (System.IntPtr)(ptr - 2 * sizeof(void*)); //Todo staticaly determine size of void?
}
#endregion
Newb move on my part, but I had installed just the JRE instead of JDK. Installed JDK and my problem went immediately away.
Brute force code to answer your question:
DataTable dt = new DataTable();
//for each of your properties
dt.Columns.Add("PropertyOne", typeof(string));
foreach(Entity entity in entities)
{
DataRow row = dt.NewRow();
//foreach of your properties
row["PropertyOne"] = entity.PropertyOne;
dt.Rows.Add(row);
}
DataSet ds = new DataSet();
ds.Tables.Add(dt);
return ds;
Now for the actual question. Why would you want to do this? As mentioned earlier, you can bind directly to an object list. Maybe a reporting tool that only takes datasets?
Warning
create_function()
has been DEPRECATED as of PHP 7.2.0. Relying on this function is highly discouraged.
You can use the array_map()
function.
This should do it:
$catIds = array_map(create_function('$o', 'return $o->id;'), $objects);
As @Relequestual writes below, the function is now integrated directly in the array_map. The new version of the solution looks like this:
$catIds = array_map(function($o) { return $o->id;}, $objects);
Using the default works, but so does:
urls[url] = urls.get(url, 0) + 1
using .get
, you can get a default return if it doesn't exist. By default it's None, but in the case I sent you, it would be 0.
For Bootstrap 4, use the below code:
<div class="mx-auto" style="width: 200px;">
Centered element
</div>
Ref: https://getbootstrap.com/docs/4.0/utilities/spacing/#horizontal-centering
Visit https://www.tutorialspoint.com/python/string_join.htm
s=" "
seq=["ab", "cd", "ef"]
print(s.join(seq))
ab cd ef
s="."
print(s.join(seq))
ab.cd.ef
Refer to API Pagination Design, we could design pagination api through cursor
They have this concept, called cursor — it’s a pointer to a row. So you can say to a database “return me 100 rows after that one”. And it’s much easier for a database to do since there is a good chance that you’ll identify the row by a field with an index. And suddenly you don’t need to fetch and skip those rows, you’ll go directly past them. An example:
GET /api/products
{"items": [...100 products],
"cursor": "qWe"}
API returns an (opaque) string, which you can use then to retrieve the next page:
GET /api/products?cursor=qWe
{"items": [...100 products],
"cursor": "qWr"}
Implementation-wise there are many options. Generally, you have some ordering criteria, for example, product id. In this case, you’ll encode your product id with some reversible algorithm (let’s say
hashids
). And on receiving a request with the cursor you decode it and generate a query likeWHERE id > :cursor LIMIT 100
.
Advantage:
cursor
Disadvantage:
previous page
link with a stateless APITry:
String str = "my string \n my other string";
When printed you will get:
my string
my other string
(This is already answered in comments, but since it lacks an actual answer, I'm writing this.)
This problem arises in newer versions of Visual C++ (the older versions usually just silently linked the program and it would crash and burn at run time.) It means that some of the libraries you are linking with your program (or even some of the source files inside your program itself) are using different versions of the CRT (the C RunTime library.)
To correct this error, you need to go into your Project Properties
(and/or those of the libraries you are using,) then into C/C++
, then Code Generation
, and check the value of Runtime Library
; this should be exactly the same for all the files and libraries you are linking together. (The rules are a little more relaxed for linking with DLLs, but I'm not going to go into the "why" and into more details here.)
There are currently four options for this setting:
Your particular problem seems to stem from you linking a library built with "Multithreaded Debug" (i.e. static multithreaded debug CRT) against a program that is being built using the "Multithreaded Debug DLL" setting (i.e. dynamic multithreaded debug CRT.) You should change this setting either in the library, or in your program. For now, I suggest changing this in your program.
Note that since Visual Studio projects use different sets of project settings for debug and release builds (and 32/64-bit builds) you should make sure the settings match in all of these project configurations.
For (some) more information, you can see these (linked from a comment above):
UPDATE: (This is in response to a comment that asks for the reason that this much care must be taken.)
If two pieces of code that we are linking together are themselves linking against and using the standard library, then the standard library must be the same for both of them, unless great care is taken about how our two code pieces interact and pass around data. Generally, I would say that for almost all situations just use the exact same version of the standard library runtime (regarding debug/release, threads, and obviously the version of Visual C++, among other things like iterator debugging, etc.)
The most important part of the problem is this: having the same idea about the size of objects on either side of a function call.
Consider for example that the above two pieces of code are called A
and B
. A is compiled against one version of the standard library, and B against another. In A's view, some random object that a standard function returns to it (e.g. a block of memory or an iterator or a FILE
object or whatever) has some specific size and layout (remember that structure layout is determined and fixed at compile time in C/C++.) For any of several reasons, B's idea of the size/layout of the same objects is different (it can be because of additional debug information, natural evolution of data structures over time, etc.)
Now, if A calls the standard library and gets an object back, then passes that object to B, and B touches that object in any way, chances are that B will mess that object up (e.g. write the wrong field, or past the end of it, etc.)
The above isn't the only kind of problems that can happen. Internal global or static objects in the standard library can cause problems too. And there are more obscure classes of problems as well.
All this gets weirder in some aspects when using DLLs (dynamic runtime library) instead of libs (static runtime library.)
This situation can apply to any library used by two pieces of code that work together, but the standard library gets used by most (if not almost all) programs, and that increases the chances of clash.
What I've described is obviously a watered down and simplified version of the actual mess that awaits you if you mix library versions. I hope that it gives you an idea of why you shouldn't do it!
You cannot overload PHP functions. Function signatures are based only on their names and do not include argument lists, so you cannot have two functions with the same name. Class method overloading is different in PHP than in many other languages. PHP uses the same word but it describes a different pattern.
You can, however, declare a variadic function that takes in a variable number of arguments. You would use func_num_args()
and func_get_arg()
to get the arguments passed, and use them normally.
For example:
function myFunc() {
for ($i = 0; $i < func_num_args(); $i++) {
printf("Argument %d: %s\n", $i, func_get_arg($i));
}
}
/*
Argument 0: a
Argument 1: 2
Argument 2: 3.5
*/
myFunc('a', 2, 3.5);
I use this function to convert an string[][]
to a csv file. It quotes a cell, if it contains a "
, a ,
or other whitespace (except blanks):
/**
* Takes an array of arrays and returns a `,` sparated csv file.
* @param {string[][]} table
* @returns {string}
*/
function toCSV(table) {
return table
.map(function(row) {
return row
.map(function(cell) {
// We remove blanks and check if the column contains
// other whitespace,`,` or `"`.
// In that case, we need to quote the column.
if (cell.replace(/ /g, '').match(/[\s,"]/)) {
return '"' + cell.replace(/"/g, '""') + '"';
}
return cell;
})
.join(',');
})
.join('\n'); // or '\r\n' for windows
}
Note: does not work on Internet Explorer < 11 unless map
is polyfilled.
Note: If the cells contain numbers, you can add cell=''+cell
before if (cell.replace...
to convert numbers to strings.
Or you can write it in one line using ES6:
t.map(r=>r.map(c=>c.replace(/ /g, '').match(/[\s,"]/)?'"'+c.replace(/"/g,'""')+'"':c).join(',')).join('\n')
The other answers to this question seem to hit it spot on. Now how would you figure this out for yourself without stack overflow? Check out IPython, an interactive Python shell that has tab auto-complete.
> ipython
import Python 2.5 (r25:51908, Nov 6 2007, 16:54:01)
Type "copyright", "credits" or "license" for more information.
IPython 0.8.2.svn.r2750 -- An enhanced Interactive Python.
? -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help -> Python's own help system.
object? -> Details about 'object'. ?object also works, ?? prints more.
In [1]: import datetime
In [2]: now=datetime.datetime.now()
In [3]: now.
press tab a few times and you'll be prompted with the members of the "now" object:
now.__add__ now.__gt__ now.__radd__ now.__sub__ now.fromordinal now.microsecond now.second now.toordinal now.weekday
now.__class__ now.__hash__ now.__reduce__ now.astimezone now.fromtimestamp now.min now.strftime now.tzinfo now.year
now.__delattr__ now.__init__ now.__reduce_ex__ now.combine now.hour now.minute now.strptime now.tzname
now.__doc__ now.__le__ now.__repr__ now.ctime now.isocalendar now.month now.time now.utcfromtimestamp
now.__eq__ now.__lt__ now.__rsub__ now.date now.isoformat now.now now.timetuple now.utcnow
now.__ge__ now.__ne__ now.__setattr__ now.day now.isoweekday now.replace now.timetz now.utcoffset
now.__getattribute__ now.__new__ now.__str__ now.dst now.max now.resolution now.today now.utctimetuple
and you'll see that now.year is a member of the "now" object.
JButton b3 = new JButton("CLOSE");
b3.setBounds(50, 375, 250, 50);
b3.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e)
{
System.exit(0);
}
});
Within a Python scope, any assignment to a variable not already declared within that scope creates a new local variable unless that variable is declared earlier in the function as referring to a globally scoped variable with the keyword global
.
Let's look at a modified version of your pseudocode to see what happens:
# Here, we're creating a variable 'x', in the __main__ scope.
x = 'None!'
def func_A():
# The below declaration lets the function know that we
# mean the global 'x' when we refer to that variable, not
# any local one
global x
x = 'A'
return x
def func_B():
# Here, we are somewhat mislead. We're actually involving two different
# variables named 'x'. One is local to func_B, the other is global.
# By calling func_A(), we do two things: we're reassigning the value
# of the GLOBAL x as part of func_A, and then taking that same value
# since it's returned by func_A, and assigning it to a LOCAL variable
# named 'x'.
x = func_A() # look at this as: x_local = func_A()
# Here, we're assigning the value of 'B' to the LOCAL x.
x = 'B' # look at this as: x_local = 'B'
return x # look at this as: return x_local
In fact, you could rewrite all of func_B
with the variable named x_local
and it would work identically.
The order matters only as far as the order in which your functions do operations that change the value of the global x. Thus in our example, order doesn't matter, since func_B
calls func_A
. In this example, order does matter:
def a():
global foo
foo = 'A'
def b():
global foo
foo = 'B'
b()
a()
print foo
# prints 'A' because a() was the last function to modify 'foo'.
Note that global
is only required to modify global objects. You can still access them from within a function without declaring global
.
Thus, we have:
x = 5
def access_only():
return x
# This returns whatever the global value of 'x' is
def modify():
global x
x = 'modified'
return x
# This function makes the global 'x' equal to 'modified', and then returns that value
def create_locally():
x = 'local!'
return x
# This function creates a new local variable named 'x', and sets it as 'local',
# and returns that. The global 'x' is untouched.
Note the difference between create_locally
and access_only
-- access_only
is accessing the global x despite not calling global
, and even though create_locally
doesn't use global
either, it creates a local copy since it's assigning a value.
The confusion here is why you shouldn't use global variables.
Just to add the information I was looking for: pragma mark
is Xcode specific, so if you deal with a C++ project that you open in different IDEs, it does not have any effect there. In Qt Creator, for example, it does not add categories for methods, nor generate any warnings/errors.
EDIT
#pragma
is a preprocessor directive which comes from C programming language. Its purpose is to specify implementation-dependent information to the compiler - that is, each compiler might choose to interpret this directive as it wants. That said, it is rather considered an extension which does not change/influence the code itself. So compilers might as well ignore it.
Xcode is an IDE which takes advantage of #pragma
and uses it in its own specific way. The point is, #pragma
is not Xcode and even Objective-C specific.
(a) Django is a framework, not a language
(b) I'm not sure what you're missing - there is no reason why you can't have business logic in a web application. In Django, you would normally expect presentation logic to be separated from business logic. Just because it is hosted in the same application server, it doesn't follow that the two layers are entangled.
(c) Django does provide templating, but it doesn't provide rich libraries for generating client-side content.
This part from React v16 documentation will answer your question, read on about componentDidMount():
componentDidMount()
componentDidMount() is invoked immediately after a component is mounted. Initialization that requires DOM nodes should go here. If you need to load data from a remote endpoint, this is a good place to instantiate the network request. This method is a good place to set up any subscriptions. If you do that, don’t forget to unsubscribe in componentWillUnmount().
As you see, componentDidMount is considered the best place and cycle to do the api call, also access the node, means by this time it's safe to do the call, update the view or whatever you could do when document is ready, if you are using jQuery, it should somehow remind you document.ready() function, where you could make sure everything is ready for whatever you want to do in your code...
DateTime does not know its timezone offset. There is no built-in method to return the offset or the timezone name (e.g. EAT, CEST, EST etc).
Like suggested by others, you can convert your date to UTC:
DateTime localtime = new DateTime.Now;
var utctime = localtime.ToUniversalTime();
and then only calculate the difference:
TimeSpan difference = localtime - utctime;
Also you may convert one time to another by using the DateTimeOffset:
DateTimeOffset targetTime = DateTimeOffset.Now.ToOffset(new TimeSpan(5, 30, 0));
But this is sort of lossy compression - the offset alone cannot tell you which time zone it is as two different countries may be in different time zones and have the same time only for part of the year (eg. South Africa and Europe). Also, be aware that summer daylight saving time may be introduced at different dates (EST vs CET - a 3-week difference).
You can get the name of your local system time zone using TimeZoneInfo class:
TimeZoneInfo localZone = TimeZoneInfo.Local;
localZone.IsDaylightSavingTime(localtime) ? localZone.DaylightName : localZone.StandardName
I agree with Gerrie Schenck, please read the article he suggested.
I don't of a simple solution on the SQL promprt. Howeve there are quite a few tools like toad and PL/SQL Developer that have a GUI where a user can input the string to be searched and it will return the table/procedure/object where this is found.
as noted by @tripleee, this is tangential, at best.
still, in case you arrived here searching for something like that (as i did), here is my solution
having to deal with user acessible configuration files, i use this function :
function isTrue() {
if [[ "${@^^}" =~ ^(TRUE|OUI|Y|O$|ON$|[1-9]) ]]; then return 0;fi
return 1
}
wich can be used like that
if isTrue "$whatever"; then..
You can alter the "truth list" in the regexp, the one in this sample is french compatible and considers strings like "Yeah, yup, on,1, Oui,y,true to be "True".
note that the '^^' provides case insensivity
You can try this:
<div ng-app="app">
<div ng-controller="AppCtrl">
<a my-dir ng-repeat="user in users" ng-click="fxn()">{{user.name}}</a>
</div>
</div>
<script>
var app = angular.module('app', []);
function AppCtrl($scope) {
$scope.users = [{ name: 'John', id: 1 }, { name: 'anonymous' }];
$scope.fxn = function () {
alert('It works');
};
}
app.directive("myDir", function ($compile) {
return {
scope: {ngClick: '='}
};
});
</script>
this is very old question, but since I came here while searching worth putting my answer.
SELECT DATEPART(ISO_WEEK,'2020-11-13') AS ISO_8601_WeekNr
dat <- data.frame(x1 = c(1,2,3, NA, 5), x2 = c(100, NA, 300, 400, 500))
na.omit(dat)
x1 x2
1 1 100
3 3 300
5 5 500
just FYI in GoDaddy it's this:
AddHandler x-httpd-php5-3 .php
from the Puppet function documentation
info: Log a message on the server at level info.
debug: Log a message on the server at level debug.
You have to look a your puppetmaster logfile to find your info/debug messages.
You may use
notify{"The value is: ${yourvar}": }
to produce some output to your puppet client
This solved my error:
I am on branch : "A"
git stash
Move to master branch:
git checkout master <br>
git pull*
Move back to my branch: "A"
git checkout A <br>
git stash pop*
If you don't want to bother with a file, you can do something like this in your code:
static
{
Logger rootLogger = Logger.getRootLogger();
rootLogger.setLevel(Level.INFO);
rootLogger.addAppender(new ConsoleAppender(
new PatternLayout("%-6r [%p] %c - %m%n")));
}
Sounds like one part of the project is being built for x86-only while the rest is being built for any CPU/x64. This bit me, too. Are you running an x64 (or uh... IA64)?
Check the project properties and make sure everything is being built for "Any CPU". f you're in Visual Studio, you can check for everything by going to the "x86" or "Any CPU" menu (next to the "Debug"/"Release" menu) on the toolbar at the top of the screen and clicking "Configuration Manager..."
The format for HTTP headers is defined in the HTTP specification. I'm going to talk about HTTP 1.1, for which the specification is RFC 2616. In section 4.2, 'Message Headers', the general structure of a header is defined:
message-header = field-name ":" [ field-value ]
field-name = token
field-value = *( field-content | LWS )
field-content = <the OCTETs making up the field-value
and consisting of either *TEXT or combinations
of token, separators, and quoted-string>
This definition rests on two main pillars, token and TEXT. Both are defined in section 2.2, 'Basic Rules'. Token is:
token = 1*<any CHAR except CTLs or separators>
In turn resting on CHAR, CTL and separators:
CHAR = <any US-ASCII character (octets 0 - 127)>
CTL = <any US-ASCII control character
(octets 0 - 31) and DEL (127)>
separators = "(" | ")" | "<" | ">" | "@"
| "," | ";" | ":" | "\" | <">
| "/" | "[" | "]" | "?" | "="
| "{" | "}" | SP | HT
TEXT is:
TEXT = <any OCTET except CTLs,
but including LWS>
Where LWS is linear white space, whose definition i won't reproduce, and OCTET is:
OCTET = <any 8-bit sequence of data>
There is a note accompanying the definition:
The TEXT rule is only used for descriptive field contents and values
that are not intended to be interpreted by the message parser. Words
of *TEXT MAY contain characters from character sets other than ISO-
8859-1 [22] only when encoded according to the rules of RFC 2047
[14].
So, two conclusions. Firstly, it's clear that the header name must be composed from a subset of ASCII characters - alphanumerics, some punctuation, not a lot else. Secondly, there is nothing in the definition of a header value that restricts it to ASCII or excludes 8-bit characters: it's explicitly composed of octets, with only control characters barred (note that CR and LF are considered controls). Furthermore, the comment on the TEXT production implies that the octets are to be interpreted as being in ISO-8859-1, and that there is an encoding mechanism (which is horrible, incidentally) for representing characters outside that encoding.
So, to respond to @BalusC in particular, it's quite clear that according to the specification, header values are in ISO-8859-1. I've sent high-8859-1 characters (specifically, some accented vowels as used in French) in a header out of Tomcat, and had them interpreted correctly by Firefox, so to some extent, this works in practice as well as in theory (although this was a Location header, which contains a URL, and these characters are not legal in URLs, so this was actually illegal, but under a different rule!).
That said, i wouldn't rely on ISO-8859-1 working across all servers, proxies, and clients, so i would stick to ASCII as a matter of defensive programming.
if a device has an SD card, you use:
Environment.getExternalStorageState()
if you don't have an SD card, you use:
Environment.getDataDirectory()
if there is no SD card, you can create your own directory on the device locally.
//if there is no SD card, create new directory objects to make directory on device
if (Environment.getExternalStorageState() == null) {
//create new file directory object
directory = new File(Environment.getDataDirectory()
+ "/RobotiumTestLog/");
photoDirectory = new File(Environment.getDataDirectory()
+ "/Robotium-Screenshots/");
/*
* this checks to see if there are any previous test photo files
* if there are any photos, they are deleted for the sake of
* memory
*/
if (photoDirectory.exists()) {
File[] dirFiles = photoDirectory.listFiles();
if (dirFiles.length != 0) {
for (int ii = 0; ii <= dirFiles.length; ii++) {
dirFiles[ii].delete();
}
}
}
// if no directory exists, create new directory
if (!directory.exists()) {
directory.mkdir();
}
// if phone DOES have sd card
} else if (Environment.getExternalStorageState() != null) {
// search for directory on SD card
directory = new File(Environment.getExternalStorageDirectory()
+ "/RobotiumTestLog/");
photoDirectory = new File(
Environment.getExternalStorageDirectory()
+ "/Robotium-Screenshots/");
if (photoDirectory.exists()) {
File[] dirFiles = photoDirectory.listFiles();
if (dirFiles.length > 0) {
for (int ii = 0; ii < dirFiles.length; ii++) {
dirFiles[ii].delete();
}
dirFiles = null;
}
}
// if no directory exists, create new directory to store test
// results
if (!directory.exists()) {
directory.mkdir();
}
}// end of SD card checking
add permissions on your manifest.xml
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
Happy coding..
You should probably take a look at the various flavours of getResource in the ClassLoader class: https://docs.oracle.com/javase/1.5.0/docs/api/java/lang/ClassLoader.html.
This should be what you are looking for using jQuery.
$(function(){
$('#header_nav').data('size','big');
});
$(window).scroll(function(){
if($(document).scrollTop() > 0)
{
if($('#header_nav').data('size') == 'big')
{
$('#header_nav').data('size','small');
$('#header_nav').stop().animate({
height:'40px'
},600);
}
}
else
{
if($('#header_nav').data('size') == 'small')
{
$('#header_nav').data('size','big');
$('#header_nav').stop().animate({
height:'100px'
},600);
}
}
});
Demonstration: http://jsfiddle.net/jezzipin/JJ8Jc/
Set setHasMenuOptions(true) works if application has a theme with Actionbar such as Theme.MaterialComponents.DayNight.DarkActionBar
or Activity
has it's own Toolbar, otherwise onCreateOptionsMenu
in fragment does not get called.
If you want to use standalone Toolbar
you either need to get activity and set your Toolbar
as support action bar with
(requireActivity() as? MainActivity)?.setSupportActionBar(toolbar)
which lets your fragment onCreateOptionsMenu to be called.
Other alternative is, you can inflate your Toolbar
's own menu with toolbar.inflateMenu(R.menu.YOUR_MENU)
and item listener with
toolbar.setOnMenuItemClickListener {
// do something
true
}
Does your page contain these
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1"
Runat="Server">
</asp:content>
tags, and are all your controls inside these? You should only have the Form tags in the MasterPage.
Here are some of my understanding and suggestion:
Html element can be put in the body of html pages and html page does support multiple elements, however they can not be nested each other, you can find the detailed description from the W3C html specification:
http://www.w3.org/MarkUp/html3/forms.html
And as for ASP.NET web form page, it is based on a single server-side form element which contains all the controls inside it, so generally we do not recommend that we put multiple elements. However, this is still supported in ASP.NET page(master page) and I think the problem in your master page should be caused by the unsupported nested element, and multiple in the same level should be ok. e.g:
In addition, if what you want to do through multiple forms is just make our page posting to multiple pages, I think you can consider using the new feature for cross-page posting in ASP.NET 2.0. This can help us use button controls to postback to different pages without having multpile forms on the page:
I rarely employ cursors, but I just discovered one other item that can bite you here, the scope of the cursor name.
If the database CURSOR_DEFAULT is global, you will get the "cursor already exists" error if you declare a cursor in a stored procedure with a particular name (eg "cur"), and while that cursor is open you call another stored procedure which declares and opens a cursor with the same name (eg "cur"). The error will occur in the nested stored procedure when it attempts to open "cur".
Run this bit of sql to see your CURSOR_DEFAULT:
select is_local_cursor_default from sys.databases where name = '[your database name]'
If this value is "0" then how you name your nested cursor matters!
Clear repository is one possible solution.
Windows -> delete all subfolders in the maven repository:
C:\Users\YourUserName.m2\repository
For ubuntu try these steps if others are not working :
cd ~
sudo apt-get remove php5-mcrypt
sudo apt-get install php5-mcrypt
sudo php5enmod mcrypt
sudo service apache2 restart
Hope that will help. Thanks !
contentType
is the HTTP header sent to the server, specifying a particular format.dataType
is you telling jQuery what kind of response to expect.The $.ajax()
documentation has full descriptions of these as well.
In your particular case, the first is asking for the response to be in UTF-8
, the second doesn't care. Also the first is treating the response as a JavaScript object, the second is going to treat it as a string.
So the first would be:
success: function(data) {
// get data, e.g. data.title;
}
The second:
success: function(data) {
alert("Here's lots of data, just a string: " + data);
}
So I assume your permissions table has a foreign key reference to admin_accounts table. If so because of referential integrity you will only be able to add permissions for account ids exsiting in the admin accounts table. Which also means that you wont be able to enter a user_account_id [assuming there are no duplicates!]
<?php
function takes_array($input)
{
echo "$input[0] + $input[1] = ", $input[0]+$input[1];
}
?>
I did quite a bit of investigation on that topic recently since I was not satisfied with the many libraries I found out there.
I ended up developing a library to address this, it is named valid8. As explained in the documentation, it is for value validation mostly (although it comes bundled with simple type validation functions too), and you might wish to associate it with a PEP484-based type checker such as enforce or pytypes.
This is how you would perform validation with valid8
alone (and mini_lambda
actually, to define the validation logic - but it is not mandatory) in your case:
# for type validation
from numbers import Integral
from valid8 import instance_of
# for value validation
from valid8 import validate_arg
from mini_lambda import x, s, Len
@validate_arg('a', instance_of(Integral))
@validate_arg('b', (0 < x) & (x < 10))
@validate_arg('c', instance_of(str), Len(s) > 0)
def my_function(a: Integral, b, c: str):
"""an example function I'd like to check the arguments of."""
# check that a is an int
# check that 0 < b < 10
# check that c is not an empty string
# check that it works
my_function(0.2, 1, 'r') # InputValidationError for 'a' HasWrongType: Value should be an instance of <class 'numbers.Integral'>. Wrong value: [0.2].
my_function(0, 0, 'r') # InputValidationError for 'b' [(x > 0) & (x < 10)] returned [False]
my_function(0, 1, 0) # InputValidationError for 'c' Successes: [] / Failures: {"instance_of_<class 'str'>": "HasWrongType: Value should be an instance of <class 'str'>. Wrong value: [0]", 'len(s) > 0': "TypeError: object of type 'int' has no len()"}.
my_function(0, 1, '') # InputValidationError for 'c' Successes: ["instance_of_<class 'str'>"] / Failures: {'len(s) > 0': 'False'}
And this is the same example leveraging PEP484 type hints and delegating type checking to enforce
:
# for type validation
from numbers import Integral
from enforce import runtime_validation, config
config(dict(mode='covariant')) # type validation will accept subclasses too
# for value validation
from valid8 import validate_arg
from mini_lambda import x, s, Len
@runtime_validation
@validate_arg('b', (0 < x) & (x < 10))
@validate_arg('c', Len(s) > 0)
def my_function(a: Integral, b, c: str):
"""an example function I'd like to check the arguments of."""
# check that a is an int
# check that 0 < b < 10
# check that c is not an empty string
# check that it works
my_function(0.2, 1, 'r') # RuntimeTypeError 'a' was not of type <class 'numbers.Integral'>
my_function(0, 0, 'r') # InputValidationError for 'b' [(x > 0) & (x < 10)] returned [False]
my_function(0, 1, 0) # RuntimeTypeError 'c' was not of type <class 'str'>
my_function(0, 1, '') # InputValidationError for 'c' [len(s) > 0] returned [False].
We can convert Today's date in the format of 'JUN 12, 2020'.
String.valueOf(DateFormat.getDateInstance().format(new Date())));
var specialChars = "<>@!#$%^&*()_+[]{}?:;|'\"\\,./~`-="
var check = function(string){
for(i = 0; i < specialChars.length;i++){
if(string.indexOf(specialChars[i]) > -1){
return true
}
}
return false;
}
if(check($('#Search').val()) == false){
// Code that needs to execute when none of the above is in the string
}else{
alert('Your search string contains illegal characters.');
}
Here's a solution I just came up with for this problem
Original code:
int index=0;
foreach (var item in enumerable)
{
blah(item, index); // some code that depends on the index
index++;
}
Updated code
enumerable.ForEach((item, index) => blah(item, index));
Extension Method:
public static IEnumerable<T> ForEach<T>(this IEnumerable<T> enumerable, Action<T, int> action)
{
var unit = new Unit(); // unit is a new type from the reactive framework (http://msdn.microsoft.com/en-us/devlabs/ee794896.aspx) to represent a void, since in C# you can't return a void
enumerable.Select((item, i) =>
{
action(item, i);
return unit;
}).ToList();
return pSource;
}
Try the os.path.exists
function
if not os.path.exists(dir):
os.mkdir(dir)
Using Ubuntu, got the same issue I noticed that the owner of some of the directories in ~/workspace/.metadata/.plugins/ ...etc... was root changed owner to me and the error stopped happening.
Looks like the same sort of issue may be caused by multiple causes.
The list may contain several elements, so the get method takes an argument : the index of the element you want to retrieve. If you want the first one, then it's 0.
The list contains Car instances, so you just have to do
Car firstCar = car.get(0);
String price = firstCar.getPrice();
or just
String price = car.get(0).getPrice();
The car
variable should be named cars
, since it's a list and thus contains several cars.
Read the tutorial about collections. And learn to use the javadoc: all the classes and methods are documented.
Unfortunately, no. You will have to cast each value individually.
From SQL Server you can set a Unique key index on the table for (Columns that needs to be unique)
I tried a few things in this scenario.
I removed ios and installed many times. Went down the path of deleting Splash screens to no avail! Bitcode on/off so many times.
However, after selecting a iOS provisioning team, and running pod update
inside ./platforms/ios
, I am pleased to announce this resolved my problems.
Hopefully you can try the same and get some resolution?
Why not just String substr = word.substring(word.length() - 3)
?
Update
Please make sure you check that the String
is at least 3 characters long before calling substring()
:
if (word.length() == 3) {
return word;
} else if (word.length() > 3) {
return word.substring(word.length() - 3);
} else {
// whatever is appropriate in this case
throw new IllegalArgumentException("word has less than 3 characters!");
}
You can also put the tooltip onto one line by removing the "title":
this.chart = new Chart(ctx, {
type: this.props.horizontal ? 'horizontalBar' : 'bar',
options: {
legend: {
display: false,
},
tooltips: {
callbacks: {
label: tooltipItem => `${tooltipItem.yLabel}: ${tooltipItem.xLabel}`,
title: () => null,
}
},
},
});
func resizeImage(image: UIImage, newWidth: CGFloat) -> UIImage
{
let scale = newWidth / image.size.width
let newHeight = image.size.height * scale
UIGraphicsBeginImageContext(CGSizeMake(newWidth, newHeight))
image.drawInRect(CGRectMake(0, 0, newWidth, newHeight))
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage
}
There is another asynchronous way use Blob and FileReader.
I didn't test the performance. But it is a different way of thinking.
function arrayBufferToBase64( buffer, callback ) {
var blob = new Blob([buffer],{type:'application/octet-binary'});
var reader = new FileReader();
reader.onload = function(evt){
var dataurl = evt.target.result;
callback(dataurl.substr(dataurl.indexOf(',')+1));
};
reader.readAsDataURL(blob);
}
//example:
var buf = new Uint8Array([11,22,33]);
arrayBufferToBase64(buf, console.log.bind(console)); //"CxYh"
To add to other answers. For me it was helpful to delete .mvn
directory and then add build.gradle
. New versions of IntelliJ will then automatically notice that you use Gradle.
If you want only those commits which are done by you in a particular branch, use the below command.
git log branch_name --author='Dyaniyal'
I know this is an old post but try using an extension method:
public static IEnumerable<DateTime> Range(this DateTime startDate, DateTime endDate)
{
return Enumerable.Range(0, (endDate - startDate).Days + 1).Select(d => startDate.AddDays(d));
}
and use it like this
var dates = new DateTime(2000, 1, 1).Range(new DateTime(2000, 1, 31));
Feel free to choose your own dates, you don't have to restrict yourself to January 2000.
The extra [ ] on the outside of your second syntax are unnecessary, and possibly confusing. You may use them, but if you must you need to have whitespace between them.
Alternatively:
while [ $stats -gt 300 ] || [ $stats -eq 0 ]
int myArray[10] = { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5 }; // All elements of myArray are 5
int myArray[10] = { 0 }; // Will initialize all elements to 0
int myArray[10] = { 5 }; // Will initialize myArray[0] to 5 and other elements to 0
static int myArray[10]; // Will initialize all elements to 0
/************************************************************************************/
int myArray[10];// This will declare and define (allocate memory) but won’t initialize
int i; // Loop variable
for (i = 0; i < 10; ++i) // Using for loop we are initializing
{
myArray[i] = 5;
}
/************************************************************************************/
int myArray[10] = {[0 ... 9] = 5}; // This works only in GCC
I used this before..
public static Bitmap myblur(Bitmap image, Context context) {
final float BITMAP_SCALE = 0.4f;
final float BLUR_RADIUS = 7.5f;
int width = Math.round(image.getWidth() * BITMAP_SCALE);
int height = Math.round(image.getHeight() * BITMAP_SCALE);
Bitmap inputBitmap = Bitmap.createScaledBitmap(image, width, height, false);
Bitmap outputBitmap = Bitmap.createBitmap(inputBitmap);
RenderScript rs = RenderScript.create(context);
ScriptIntrinsicBlur theIntrinsic = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
Allocation tmpIn = Allocation.createFromBitmap(rs, inputBitmap);
Allocation tmpOut = Allocation.createFromBitmap(rs, outputBitmap);
theIntrinsic.setRadius(BLUR_RADIUS);
theIntrinsic.setInput(tmpIn);
theIntrinsic.forEach(tmpOut);
tmpOut.copyTo(outputBitmap);
return outputBitmap;
}
foreach (var v in structure)
{
var group = groups.Single(g => g.Key == v. ??? );
v.ListOfSmth = group.ToList();
}
First you need to select the desired group. Then you can use the ToList
method of on the group. The IGrouping
is a IEnumerable
of the values.
Below query will provide exactly the same result as given in the desired response:
db.books.aggregate([
{
$group: {
_id: { addresses: "$addr", books: "$book" },
num: { $sum :1 }
}
},
{
$group: {
_id: "$_id.addresses",
bookCounts: { $push: { bookName: "$_id.books",count: "$num" } }
}
},
{
$project: {
_id: 1,
bookCounts:1,
"totalBookAtAddress": {
"$sum": "$bookCounts.count"
}
}
}
])
The response will be looking like below:
/* 1 */
{
"_id" : "address4",
"bookCounts" : [
{
"bookName" : "book3",
"count" : 1
}
],
"totalBookAtAddress" : 1
},
/* 2 */
{
"_id" : "address90",
"bookCounts" : [
{
"bookName" : "book33",
"count" : 1
}
],
"totalBookAtAddress" : 1
},
/* 3 */
{
"_id" : "address15",
"bookCounts" : [
{
"bookName" : "book1",
"count" : 1
}
],
"totalBookAtAddress" : 1
},
/* 4 */
{
"_id" : "address3",
"bookCounts" : [
{
"bookName" : "book9",
"count" : 1
}
],
"totalBookAtAddress" : 1
},
/* 5 */
{
"_id" : "address5",
"bookCounts" : [
{
"bookName" : "book1",
"count" : 1
}
],
"totalBookAtAddress" : 1
},
/* 6 */
{
"_id" : "address1",
"bookCounts" : [
{
"bookName" : "book1",
"count" : 3
},
{
"bookName" : "book5",
"count" : 1
}
],
"totalBookAtAddress" : 4
},
/* 7 */
{
"_id" : "address2",
"bookCounts" : [
{
"bookName" : "book1",
"count" : 2
},
{
"bookName" : "book5",
"count" : 1
}
],
"totalBookAtAddress" : 3
},
/* 8 */
{
"_id" : "address77",
"bookCounts" : [
{
"bookName" : "book11",
"count" : 1
}
],
"totalBookAtAddress" : 1
},
/* 9 */
{
"_id" : "address9",
"bookCounts" : [
{
"bookName" : "book99",
"count" : 1
}
],
"totalBookAtAddress" : 1
}
Please look here about creating a shape drawable http://developer.android.com/guide/topics/resources/drawable-resource.html#Shape
Once you have done this, in the XML for your button set android:background="@drawable/your_button_border"
That gist does describe what happend when you do a git fetch:
Obviously, change the github url to match your project's URL. It ends up looking like this:
[remote "origin"]
fetch = +refs/heads/*:refs/remotes/origin/*
url = [email protected]:joyent/node.git
fetch = +refs/pull/*/head:refs/remotes/origin/pr/*
Now fetch all the pull requests:
$ git fetch origin
From github.com:joyent/node
* [new ref] refs/pull/1000/head -> origin/pr/1000
* [new ref] refs/pull/1002/head -> origin/pr/1002
* [new ref] refs/pull/1004/head -> origin/pr/1004
* [new ref] refs/pull/1009/head -> origin/pr/1009
...
To check out a particular pull request:
$ git checkout pr/999
Branch pr/999 set up to track remote branch pr/999 from origin.
Switched to a new branch 'pr/999'
You have various scripts listed in issues 259 to automate that task.
The git-extras project proposes the command git-pr
(implemented in PR 262)
git-pr
(1) -- Checks out a pull request locallySYNOPSIS
git-pr <number> [<remote>]
git-pr clean
DESCRIPTION
Creates a local branch based on a GitHub pull request number, and switch to that branch afterwards.
The name of the remote to fetch from. Defaults to
origin
.EXAMPLES
This checks out the pull request
226
fromorigin
:
$ git pr 226
remote: Counting objects: 12, done.
remote: Compressing objects: 100% (9/9), done.
remote: Total 12 (delta 3), reused 9 (delta 3)
Unpacking objects: 100% (12/12), done.
From https://github.com/visionmedia/git-extras
* [new ref] refs/pull/226/head -> pr/226
Switched to branch 'pr/226'
The best way is to do a mongodump
then mongorestore
. You can select the collection via:
mongodump -d some_database -c some_collection
[Optionally, zip the dump (zip some_database.zip some_database/* -r
) and scp
it elsewhere]
Then restore it:
mongorestore -d some_other_db -c some_or_other_collection dump/some_collection.bson
Existing data in some_or_other_collection
will be preserved. That way you can "append" a collection from one database to another.
Prior to version 2.4.3, you will also need to add back your indexes after you copy over your data. Starting with 2.4.3, this process is automatic, and you can disable it with --noIndexRestore
.
You can use above in one line.
let imageView = UIImageView(image: UIImage(named: "yourImage.png")!)
You may be able to use an approximate string matching library to do this, e.g. SecondString, but that is almost certainly overkill - just use one of the for-loop answers provided instead.
This is more of an xpath question, but like this, assuming the context is the parent element:
<xsl:value-of select="name/@attribute1" />
npm run-script <custom_script_name>
or
npm run <custom_script_name>
In your example, you would want to run npm run-script script1
or npm run script1
.
See https://docs.npmjs.com/cli/run-script
Node also allows you to run custom scripts for certain lifecycle events, like after npm install
is run. These can be found here.
For example:
"scripts": {
"postinstall": "electron-rebuild",
},
This would run electron-rebuild
after a npm install
command.
EXP (export) and IMP (import) are the two tools you need. It's is better to try to run these on the command line and on the same machine.
It can be run from remote, you just need to setup you TNSNAMES.ORA
correctly and install all the developer tools with the same version as the database. Without knowing the error message you are experiencing then I can't help you to get exp/imp to work.
The command to export a single user:
exp userid=dba/dbapassword OWNER=username DIRECT=Y FILE=filename.dmp
This will create the export dump file.
To import the dump file into a different user schema, first create the newuser in SQLPLUS:
SQL> create user newuser identified by 'password' quota unlimited users;
Then import the data:
imp userid=dba/dbapassword FILE=filename.dmp FROMUSER=username TOUSER=newusername
If there is a lot of data then investigate increasing the BUFFERS
or look into expdp/impdp
Most common errors for exp and imp are setup. Check your PATH
includes $ORACLE_HOME/bin
, check $ORACLE_HOME
is set correctly and check $ORACLE_SID
is set
var fs = require('fs');
fs.writeFile(path + "\\message.txt", "Hello", function(err){
if (err) throw err;
console.log("success");
});
For example : read file and write to another file :
var fs = require('fs');
var path = process.cwd();
fs.readFile(path+"\\from.txt",function(err,data)
{
if(err)
console.log(err)
else
{
fs.writeFile(path+"\\to.text",function(erro){
if(erro)
console.log("error : "+erro);
else
console.log("success");
});
}
});
This is for those looking to DELETE an app on their Heroku account. Sometimes you end up here when trying to find out how to remove/delete an app.
WARNING: This is irreversible!
Almost all of these have issues when the user tries to backspace over the delimiters, particularly from the middle of the string.
Here's a jquery solution that handles that, and also makes sure the cursor stays in the right place as you edit:
//format text input as phone number (nnn) nnn-nnnn
$('.myPhoneField').on('input', function (e){
var $phoneField = e.target;
var cursorPosition = $phoneField.selectionStart;
var numericString = $phoneField.value.replace(/\D/g, '').substring(0, 10);
// let user backspace over the '-'
if (cursorPosition === 9 && numericString.length > 6) return;
// let user backspace over the ') '
if (cursorPosition === 5 && numericString.length > 3) return;
if (cursorPosition === 4 && numericString.length > 3) return;
var match = numericString.match(/^(\d{1,3})(\d{0,3})(\d{0,4})$/);
if (match) {
var newVal = '(' + match[1];
newVal += match[2] ? ') ' + match[2] : '';
newVal += match[3] ? '-' + match[3] : '';
// to help us put the cursor back in the right place
var delta = newVal.length - Math.min($phoneField.value.length, 14);
$phoneField.value = newVal;
$phoneField.selectionEnd = cursorPosition + delta;
} else {
$phoneField.value = '';
}
})
I think it's worth mentioning that push can be called with multiple arguments, which will be appended to the array in order. For example:
var arr = ['first'];_x000D_
arr.push('second', 'third');_x000D_
console.log(arr);
_x000D_
As a result of this you can use push.apply to append an array to another array like so:
var arr = ['first'];_x000D_
arr.push('second', 'third');_x000D_
arr.push.apply(arr, ['forth', 'fifth']);_x000D_
console.log(arr);
_x000D_
Annotated ES5 has more info on exactly what push and apply do.
2016 update: with spread, you don't need that apply
anymore, like:
var arr = ['first'];_x000D_
arr.push('second', 'third');_x000D_
_x000D_
arr.push(...['fourth', 'fifth']);_x000D_
console.log(arr) ;
_x000D_
If you don't want your new column to be of type IDENTITY
(auto-increment), or you want to be specific about the order in which your rows are numbered, you can add a column of type INT NULL
and then populate it like this. In my example, the new column is called MyNewColumn and the existing primary key column for the table is called MyPrimaryKey.
UPDATE MyTable
SET MyTable.MyNewColumn = AutoTable.AutoNum
FROM
(
SELECT MyPrimaryKey,
ROW_NUMBER() OVER (ORDER BY SomeColumn, SomeOtherColumn) AS AutoNum
FROM MyTable
) AutoTable
WHERE MyTable.MyPrimaryKey = AutoTable.MyPrimaryKey
This works in SQL Sever 2005 and later, i.e. versions that support ROW_NUMBER()
None of the above answers worked for me when binding back on POST, until I added the following in CSHTML
<div class="checkbox c-checkbox">
<label>
<input type="checkbox" id="xPrinting" name="xPrinting" value="true" @Html.Raw( Model.xPrinting ? "checked" : "")>
<span class=""></span>Printing
</label>
</div>
// POST: Index
[HttpPost]
public ActionResult Index([Bind(Include = "dateInHands,dateFrom,dateTo,pgStatus,gpStatus,vwStatus,freeSearch,xPrinting,xEmbroidery,xPersonalization,sortOrder,radioOperator")] ProductionDashboardViewModel model)
For reading REST data, at least OData Consider Microsoft Power Query. You won't be able to write data. However, you can read data very well.
Several fixes:
Use the right driver class name for your environment: if you are using an out-of-process Derby server, then you want ClientDriver (and need to use derbyclient.jar), the hostname and port, etc. If you want an in-process Derby server, then you want derby.jar, EmbeddedDriver, and a URL that is appropriate for an embedded database.
Put your driver JAR file only in Tomcat's lib/
directory.
Don't put anything in Tomcat's conf/context.xml
: there's really no reason for it. Instead, use your webapp's META-INF/context.xml
to define your <Resource>
.
The error "Cannot create JDBC driver of class '' for connect URL 'null'
usually occurs because the JDBC driver is not in the right place (or in too many places, like Tomcat's lib/
directory but also in the webapp's WEB-INF/lib/
directory). Please verify that you have the right driver JAR file in the right place.
Display display = getActivity().getWindowManager().getDefaultDisplay();
int screenWidth = display.getWidth();
int screenHeight = display.getHeight();
Log.d("Tag", "Getting Width >> " + screenWidth);
Log.d("Tag", "Getting Height >> " + screenHeight);
This worked properly in my application
You can also do it with a one liner like this:
[...((add, set) => add(set, add))((set, add) => set.size < 8 ? add(set.add(Math.floor(Math.random()*100) + 1), add) : set, new Set())]
This is the ASCII format.
Please consider that:
Some data (like URLs) can be sent over the Internet using the ASCII character-set. Since data often contain characters outside the ASCII set, so it has to be converted into a valid ASCII format.
To find it yourself, you can visit https://en.wikipedia.org/wiki/ASCII, there you can find big tables of characters. The one you are looking is in Control Characters
table.
Digging to table you can find
Oct Dec Hex Name
012 10 0A Line Feed
In the html file you can use Dec and Hex representation of charters
The Dec
is represented with
The Hex
is represented with 

(or you can omit the leading zero 

)
There is a good converter at https://r12a.github.io/apps/conversion/ .
Session in Java servlets is the same as session in other languages such as PHP. It is unique to the user. The server can keep track of it in different ways such as cookies, url rewriting etc. This Java doc article explains it in the context of Java servlets and indicates that exactly how session is maintained is an implementation detail left to the designers of the server. The specification only stipulates that it must be maintained as unique to a user across multiple connections to the server. Check out this article from Oracle for more information about both of your questions.
Edit There is an excellent tutorial here on how to work with session inside of servlets. And here is a chapter from Sun about Java Servlets, what they are and how to use them. Between those two articles, you should be able to answer all of your questions.
Here is my modification of nrabinowitz' solution. I didn't use the size property, because it's not perfect with proportional fonts as @Mark noted. My solution place an element after your input and gets width counted by browser (using jQuery).
Although I don't test it, I suppose it will work only if all CSS properties affecting font are inherited.
The input width changes on focusout event, which works better for me. But you can use keyup/keypress to change input's width when typing as well.
function resizeInput() {
//Firstly take the content or placeholder if content is missing.
var content =
$(this).val().length > 0 ? $(this).val() : $(this).prop("placeholder");
//Create testing element with same content as input.
var widthTester = $("<span>"+content+"</span>").hide();
//Place testing element into DOM after input (so it inherits same formatting as input does).
widthTester.insertAfter($(this));
//Set inputs width; you may want to use outerWidth() or innerWidth()
//depending whether you want to count padding and border or not.
$(this).css("width",widthTester.width()+"px");
//Remove the element from the DOM
widthTester.remove();
}
$('.resizing-input').focusout(resizeInput).each(resizeInput);
If you don't care about the number of occurrences, I would approach it like this. Using hash sets will give you better performance than simple iteration.
var set1 = new HashSet<MyType>(list1);
var set2 = new HashSet<MyType>(list2);
return set1.SetEquals(set2);
This will require that you have overridden .GetHashCode()
and implemented IEquatable<MyType>
on MyType
.
Cached files are indeed stored in /data/data/my_app_package/cache
Make sure to store the files using the following method:
String cacheDir = context.getCacheDir();
File imageFile = new File(cacheDir, "image1.jpg");
FileOutputStream out = new FileOutputStream(imageFile);
out.write(imagebuffer, 0, imagebufferlength);
where imagebuffer[] contains image data in byte format and imagebufferlength is the length of the content to be written to the FileOutputStream.
Now, you may look at DDMS File Explorer or do an "adb shell" and cd to /data/data/my_app_package/cache and do an "ls". You will find the image files you have stored through code in this directory.
Moreover, from Android documentation:
If you'd like to cache some data, rather than store it persistently, you should use getCacheDir() to open a File that represents the internal directory where your application should save temporary cache files.
When the device is low on internal storage space, Android may delete these cache files to recover space. However, you should not rely on the system to clean up these files for you. You should always maintain the cache files yourself and stay within a reasonable limit of space consumed, such as 1MB. When the user uninstalls your application, these files are removed.
PDOStatement has a public property $queryString. It should be what you want.
I've just notice that PDOStatement has an undocumented method debugDumpParams() which you may also want to look at.
I would try to delete my account in Keychain Access and then run git clone
again. Git will ask me for a new password.
Another answer, when you have a machine where you do not have an internet connection and cannot log in, is here - https://dimitri.janczak.net/2019/07/13/trial-period-reset-of-visual-studio-community-edition/.
The files are on github - https://github.com/1Dimitri/VSCELicense/releases/tag/1.0.
From the readme file:
Download/clone this repository
Run PowerShell.exe as an Administrator
Import module:
Import-Module -Name X:\PATH\TO\VSCELicense
Get-VSCELicenseExpirationDate -Version VS2019
Set license expiration date to current date + 10 days
Set-VSCELicenseExpirationDate -Version VS2019 -AddDays 10
Try this expression...
string-join(//element3/(concat(element4/text(), '.', element5/text())), " ")
X-code is primarily made for OS-X or iPhone development on Mac systems. Versions for Windows are not available. However this might help!
There is no way to get Xcode on Windows; however you can use a different SDK like Corona instead although it will not use Objective-C (I believe it uses Lua). I have however heard that it is horrible to use.
Source: classroomm.com
A shorter answer from here, adapted to this question:
var arr = $('.requiredText');
arr.each(function(index, item) {
var is_last_item = (index == (arr.length - 1));
});
Just for completeness.
Pretty easy to do this across multiple cells, without having to add '%' to each individually.
Select all the cells you want to change to percent, right Click, then format Cells, choose Custom. Type in 0.0\%
.
You are right. ArrayList.contains() tests equals(), not object identity:
returns true if and only if this list contains at least one element e such that (o==null ? e==null : o.equals(e))
If you got a NullPointerException, verify that you initialized your list, either in a constructor or the declaration. For example:
private List<String> rssFeedURLs = new ArrayList<String>();
You can't use add_timestamps and null:false if you have existing records, so here is the solution :
def change
add_timestamps(:buttons, null: true)
Button.find_each { |b| b.update(created_at: Time.zone.now, updated_at: Time.zone.now) }
change_column_null(:buttons, :created_at, false)
change_column_null(:buttons, :updated_at, false)
end
-- Applicable for SQL 2005+
USE YOUR_DATABASE_NAME //;
GO
SELECT [Scehma] = schema_name(o.schema_id)
,o.NAME
,o.type
FROM sys.sql_modules m
INNER JOIN sys.objects o ON o.object_id = m.object_id
WHERE m.DEFINITION LIKE '%YOUR SEARCH KEYWORDS%'
GO
You mean like this?
void foo ( int i ) {
if ( i < 0 ) return; // do nothing
// do something
}
You can use
LEFT(column, length)
or
SUBSTRING(column, start index, length)
It’s not easy to display live video stream from an IP camera on a web page because you need wide internet bandwidth and a great video player that is compatible with the major browsers.
But fortunately there are some cloud based services that can do this job for us. One of the best is IPCamLive. This service can receive RTSP/H264 video stream from an IP Camera and can broadcast it to the viewers. IPCamLive has Flash/HTML5 video player component that will display the video on PC, MAC, tablet or mobile. The greatest thing is that this site generates the needed HTML snippet for embedding the live video like this:
<iframe src="http://ipcamlive.com/player/player.php?alias=szekesfehervar" width="800px" height="600px"/>
So we just need to copy paste it into our HTML file without any modification.
Addition to @MarkR answer - one thing to note would be that many PHP frameworks with ORMs would not recognize or use advanced DB setup (foreign keys, cascading delete, unique constraints), and this may result in unexpected behaviour.
For example if you delete a record using ORM, and your DELETE CASCADE
will delete records in related tables, ORM's attempt to delete these related records (often automatic) will result in error.
This might be a little better:
td {
padding:2px 0;
}
This worked for me:
<dependency>
<groupId>jdk.tools</groupId>
<artifactId>jdk.tools</artifactId>
<version>1.7.0_05</version>
<scope>system</scope>
<systemPath>${JAVA_HOME}/lib/tools.jar</systemPath>
</dependency>
The best way I have found is to use jQuery JSON
Could either be
div ul
{
width: [INSERT FIXED WIDTH]
margin: 0 auto;
}
or
div li
{
text-align: center;
}
depends on how it should look like (or combining those)
There is no such thing built-in, since R does not track calls to source
and is not able to figure out what was loaded from where (this is not the case when using packages). Yet, you may use same idea as in C .h
files, i.e. wrap the whole in:
if(!exists('util_R')){
util_R<-T
#Code
}
You can also do just like this:
Task.Run(() => this.FunctionAsync()).Wait();
Note: Be careful about thread blocking!
first, check your pillow version
python -c 'import PIL; print PIL.PILLOW_VERSION'
I use pip install --upgrade pillow
upgrade the version from 2.7 to 2.9(or 3.0) fixed this.
$('input.yourClass:checkbox:checked').each(function () {
var sThisVal = $(this).val();
});
This would get all checkboxes of the class name "yourClass". I like this example since it uses the jQuery selector checked instead of doing a conditional check. Personally I would also use an array to store the value, then use them as needed, like:
var arr = [];
$('input.yourClass:checkbox:checked').each(function () {
arr.push($(this).val());
});
For input you must have used value
to grab its text but for td, you should use innerHTML
to get its html/value. Example:
alert(document.getElementById("td_id_here").innerHTML);
To get its text though, use:
alert(document.getElementById("td_id_here").innerText);
You can use justificationMode as inter_word in xml. You have to remember that this attribute is available for api level 26 and higher. For that you can assign targetApi as o. The full code is given bellow
<com.google.android.material.textview.MaterialTextView
...
android:justificationMode="inter_word"
tools:targetApi="o" />
You can parse the string using Html Agility pack and get the InnerText.
HtmlDocument htmlDoc = new HtmlDocument();
htmlDoc.LoadHtml(@"<b> Hulk Hogan's Celebrity Championship Wrestling <font color=\"#228b22\">[Proj # 206010]</font></b> (Reality Series, )");
string result = htmlDoc.DocumentNode.InnerText;
You can use dt2.Value.ToString("format")
, but of course that requires that dt2 != null, and that negates th use of a nullable type in the first place.
There are several solutions here, but the big question is: How do you want to format a null
date?
Had the same issue, and forget to connect to SSH on port where is actuall repository, not just general SSH port, then the host key is different!
ACCESS_COARSE_LOCATION
, ACCESS_FINE_LOCATION
, and WRITE_EXTERNAL_STORAGE
are all part of the Android 6.0 runtime permission system. In addition to having them in the manifest as you do, you also have to request them from the user at runtime (using requestPermissions()
) and see if you have them (using checkSelfPermission()
).
One workaround in the short term is to drop your targetSdkVersion
below 23.
But, eventually, you will want to update your app to use the runtime permission system.
For example, this activity works with five permissions. Four are runtime permissions, though it is presently only handling three (I wrote it before WRITE_EXTERNAL_STORAGE
was added to the runtime permission roster).
/***
Copyright (c) 2015 CommonsWare, LLC
Licensed under the Apache License, Version 2.0 (the "License"); you may not
use this file except in compliance with the License. You may obtain a copy
of the License at http://www.apache.org/licenses/LICENSE-2.0. Unless required
by applicable law or agreed to in writing, software distributed under the
License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
OF ANY KIND, either express or implied. See the License for the specific
language governing permissions and limitations under the License.
From _The Busy Coder's Guide to Android Development_
https://commonsware.com/Android
*/
package com.commonsware.android.permmonger;
import android.Manifest;
import android.app.Activity;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity {
private static final String[] INITIAL_PERMS={
Manifest.permission.ACCESS_FINE_LOCATION,
Manifest.permission.READ_CONTACTS
};
private static final String[] CAMERA_PERMS={
Manifest.permission.CAMERA
};
private static final String[] CONTACTS_PERMS={
Manifest.permission.READ_CONTACTS
};
private static final String[] LOCATION_PERMS={
Manifest.permission.ACCESS_FINE_LOCATION
};
private static final int INITIAL_REQUEST=1337;
private static final int CAMERA_REQUEST=INITIAL_REQUEST+1;
private static final int CONTACTS_REQUEST=INITIAL_REQUEST+2;
private static final int LOCATION_REQUEST=INITIAL_REQUEST+3;
private TextView location;
private TextView camera;
private TextView internet;
private TextView contacts;
private TextView storage;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
location=(TextView)findViewById(R.id.location_value);
camera=(TextView)findViewById(R.id.camera_value);
internet=(TextView)findViewById(R.id.internet_value);
contacts=(TextView)findViewById(R.id.contacts_value);
storage=(TextView)findViewById(R.id.storage_value);
if (!canAccessLocation() || !canAccessContacts()) {
requestPermissions(INITIAL_PERMS, INITIAL_REQUEST);
}
}
@Override
protected void onResume() {
super.onResume();
updateTable();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.actions, menu);
return(super.onCreateOptionsMenu(menu));
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch(item.getItemId()) {
case R.id.camera:
if (canAccessCamera()) {
doCameraThing();
}
else {
requestPermissions(CAMERA_PERMS, CAMERA_REQUEST);
}
return(true);
case R.id.contacts:
if (canAccessContacts()) {
doContactsThing();
}
else {
requestPermissions(CONTACTS_PERMS, CONTACTS_REQUEST);
}
return(true);
case R.id.location:
if (canAccessLocation()) {
doLocationThing();
}
else {
requestPermissions(LOCATION_PERMS, LOCATION_REQUEST);
}
return(true);
}
return(super.onOptionsItemSelected(item));
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
updateTable();
switch(requestCode) {
case CAMERA_REQUEST:
if (canAccessCamera()) {
doCameraThing();
}
else {
bzzzt();
}
break;
case CONTACTS_REQUEST:
if (canAccessContacts()) {
doContactsThing();
}
else {
bzzzt();
}
break;
case LOCATION_REQUEST:
if (canAccessLocation()) {
doLocationThing();
}
else {
bzzzt();
}
break;
}
}
private void updateTable() {
location.setText(String.valueOf(canAccessLocation()));
camera.setText(String.valueOf(canAccessCamera()));
internet.setText(String.valueOf(hasPermission(Manifest.permission.INTERNET)));
contacts.setText(String.valueOf(canAccessContacts()));
storage.setText(String.valueOf(hasPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE)));
}
private boolean canAccessLocation() {
return(hasPermission(Manifest.permission.ACCESS_FINE_LOCATION));
}
private boolean canAccessCamera() {
return(hasPermission(Manifest.permission.CAMERA));
}
private boolean canAccessContacts() {
return(hasPermission(Manifest.permission.READ_CONTACTS));
}
private boolean hasPermission(String perm) {
return(PackageManager.PERMISSION_GRANTED==checkSelfPermission(perm));
}
private void bzzzt() {
Toast.makeText(this, R.string.toast_bzzzt, Toast.LENGTH_LONG).show();
}
private void doCameraThing() {
Toast.makeText(this, R.string.toast_camera, Toast.LENGTH_SHORT).show();
}
private void doContactsThing() {
Toast.makeText(this, R.string.toast_contacts, Toast.LENGTH_SHORT).show();
}
private void doLocationThing() {
Toast.makeText(this, R.string.toast_location, Toast.LENGTH_SHORT).show();
}
}
(from this sample project)
For the requestPermissions() function, should the parameters just be "ACCESS_COARSE_LOCATION"? Or should I include the full name "android.permission.ACCESS_COARSE_LOCATION"?
I would use the constants defined on Manifest.permission
, as shown above.
Also, what is the request code?
That will be passed back to you as the first parameter to onRequestPermissionsResult()
, so you can tell one requestPermissions()
call from another.
Class that will call the methods:
namespace myNamespace
{
public class myClass
{
public static void voidMethodWithoutParameters()
{
// code here
}
public static string stringReturnMethodWithParameters(string param1, string param2)
{
// code here
return "output";
}
}
}
Calling myClass static methods using Reflection:
var myClassType = Assembly.GetExecutingAssembly().GetType(GetType().Namespace + ".myClass");
// calling my void Method that has no parameters.
myClassType.GetMethod("voidMethodWithoutParameters", BindingFlags.Public | BindingFlags.Static).Invoke(null, null);
// calling my string returning Method & passing to it two string parameters.
Object methodOutput = myClassType.GetMethod("stringReturnMethodWithParameters", BindingFlags.Public | BindingFlags.Static).Invoke(null, new object[] { "value1", "value1" });
Console.WriteLine(methodOutput.ToString());
Note: I don't need to instantiate an object of myClass to use it's methods, as the methods I'm using are static
.
Great resources:
On windows, try checking the path to the location of the PIL library. On my system, I noticed the path was
\Python26\Lib\site-packages\pil instead of \Python26\Lib\site-packages\PIL
after renaming the pil
folder to PIL
, I was able to load the PIL module.
Swift 4 answer:
// Define paragraph style - you got to pass it along to NSAttributedString constructor
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = .center
// Define attributed string attributes
let attributes = [NSAttributedStringKey.paragraphStyle: paragraphStyle]
let attributedString = NSAttributedString(string:"Test", attributes: attributes)
Lets give an example that would explain the difference between hashtable and dictionary.
Here is a method that implements hashtable
public void MethodHashTable()
{
Hashtable objHashTable = new Hashtable();
objHashTable.Add(1, 100); // int
objHashTable.Add(2.99, 200); // float
objHashTable.Add('A', 300); // char
objHashTable.Add("4", 400); // string
lblDisplay1.Text = objHashTable[1].ToString();
lblDisplay2.Text = objHashTable[2.99].ToString();
lblDisplay3.Text = objHashTable['A'].ToString();
lblDisplay4.Text = objHashTable["4"].ToString();
// ----------- Not Possible for HashTable ----------
//foreach (KeyValuePair<string, int> pair in objHashTable)
//{
// lblDisplay.Text = pair.Value + " " + lblDisplay.Text;
//}
}
The following is for dictionary
public void MethodDictionary()
{
Dictionary<string, int> dictionary = new Dictionary<string, int>();
dictionary.Add("cat", 2);
dictionary.Add("dog", 1);
dictionary.Add("llama", 0);
dictionary.Add("iguana", -1);
//dictionary.Add(1, -2); // Compilation Error
foreach (KeyValuePair<string, int> pair in dictionary)
{
lblDisplay.Text = pair.Value + " " + lblDisplay.Text;
}
}
I have experienced that it is not safe (VS2010) to delete[] NULL (i.e. array syntax). I'm not sure whether this is according to the C++ standard.
It is safe to delete NULL (scalar syntax).
Submit form when your checkbox is checked
$(document).ready(function () {
$("#yoursubmitbuttonid").click(function(){
if( $(".yourcheckboxclass").is(":checked") )
{
$("#yourformId").submit();
}else{
alert("Please select !!!");
return false;
}
return false;
});
});
There is a great library for custom fonts in android:Calligraphy
here is a sample how to use it.
in Gradle you need to put this line into your app's build.gradle file:
dependencies {
compile 'uk.co.chrisjenx:calligraphy:2.2.0'
}
and then make a class that extends Application
and write this code:
public class App extends Application {
@Override
public void onCreate() {
super.onCreate();
CalligraphyConfig.initDefault(new CalligraphyConfig.Builder()
.setDefaultFontPath("your font path")
.setFontAttrId(R.attr.fontPath)
.build()
);
}
}
and in the activity class put this method before onCreate:
@Override
protected void attachBaseContext(Context newBase) {
super.attachBaseContext(CalligraphyContextWrapper.wrap(newBase));
}
and the last thing your manifest file should look like this:
<application
.
.
.
android:name=".App">
and it will change the whole activity to your font! it's simple and clean!
I came across this thread in search of a solution that:
Testing some of the solutions posted above I didn't find one to meet all of this criteria, so I put together this simple one which might be useful for other people needing to do the same:
.container {_x000D_
width: 30%;_x000D_
float: left;_x000D_
border: 1px solid turquoise;_x000D_
margin-right: 3px;_x000D_
margin-top: 3px;_x000D_
}_x000D_
_x000D_
.container:last-of-kind {_x000D_
margin-right: 0px;_x000D_
}_x000D_
_x000D_
.image-container {_x000D_
position: relative;_x000D_
overflow: hidden;_x000D_
padding-bottom: 70%;_x000D_
/* this is the desired aspect ratio */_x000D_
width: 100%;_x000D_
}_x000D_
_x000D_
.image-container img {_x000D_
position: absolute;_x000D_
/* the following 3 properties center the image on the vertical axis */_x000D_
top: 0;_x000D_
bottom: 0;_x000D_
margin: auto;_x000D_
/* uses image at 100% width (also meaning it's horizontally center) */_x000D_
width: 100%;_x000D_
}
_x000D_
<div class="container">_x000D_
<div class="image-container">_x000D_
<img src="http://placehold.it/800x800" class="img-responsive">_x000D_
</div>_x000D_
</div>_x000D_
_x000D_
<div class="container">_x000D_
<div class="image-container">_x000D_
<img src="http://placehold.it/800x800" class="img-responsive">_x000D_
</div>_x000D_
</div>_x000D_
_x000D_
<div class="container">_x000D_
<div class="image-container">_x000D_
<img src="http://placehold.it/800x800" class="img-responsive">_x000D_
</div>_x000D_
</div>
_x000D_
Working example on JSFiddle
Just one way that I was able to do it. No guarantee on the safety of your existing data. Try with your own risk.
Delete the data files directly and restart mongod.
For example, with ubuntu (default path to data: /var/lib/mongodb), I had couple files with name like: collection.#. I keep the collection.0 and deleted all others.
Seems an easier way if you don't have serious data in database.
private void UpdateFont()
{
//Change cell font
foreach(DataGridViewColumn c in dgAssets.Columns)
{
c.DefaultCellStyle.Font = new Font("Arial", 8.5F, GraphicsUnit.Pixel);
}
}
I have resolved this problem by adding the reference to System.Web.
In fragments we need a view of that window so that we make a onCreateView of this Fragment.
Then get the view and use it to access each and every view id of that view elements..
class Demo extends Fragment
{
@Override
public View onCreateView(final LayoutInflater inflater,ViewGroup container, Bundle savedInstanceState)
{
View view =inflater.inflate(R.layout.demo_fragment, container,false);
ImageView imageview=(ImageView)view.findViewById(R.id.imageview1);
return view;
}
}
rails s -e production
This will run the server with RAILS_ENV
= 'production'
.
Apart from this you have to set the assets path in production.rb
config.serve_static_assets = true
Without this your assets will not be loaded.
If you know the file is in your current directory, I would use:
ls -lt | head
This lists your most recently modified files and directories in order. In fact, I use it so much I have it aliased to 'lh'.
Entity Framework does not support collections of primitive types. You can either create an entity (which will be saved to a different table) or do some string processing to save your list as a string and populate the list after the entity is materialized.
Open iOS Simulator application from Debug Menu -> Location ->
As many have suggested, JRE v1.7 and above has File.toPath();
File yourFile = ...;
Path yourPath = yourFile.toPath();
On Oracle's jdk 1.7 documentation which is also mentioned in other posts above, the following equivalent code is described in the description for toPath() method, which may work for JRE v1.6;
File yourFile = ...;
Path yourPath = FileSystems.getDefault().getPath(yourFile.getPath());
This also works for me:-
@Temporal(TemporalType.TIMESTAMP)
@Column(name = "CREATE_DATE_TIME", nullable = false, updatable = false, insertable = false, columnDefinition = "TIMESTAMP DEFAULT CURRENT_TIMESTAMP")
public Date getCreateDateTime() {
return createDateTime;
}
public void setCreateDateTime(Date createDateTime) {
this.createDateTime = createDateTime;
}
I've found this script example useful (from http://www.mrexcel.com/forum/excel-questions/898899-json-api-excel.html#post4332075 ):
Sub getData()
Dim Movie As Object
Dim scriptControl As Object
Set scriptControl = CreateObject("MSScriptControl.ScriptControl")
scriptControl.Language = "JScript"
With CreateObject("MSXML2.XMLHTTP")
.Open "GET", "http://www.omdbapi.com/?t=frozen&y=&plot=short&r=json", False
.send
Set Movie = scriptControl.Eval("(" + .responsetext + ")")
.abort
With Sheets(2)
.Cells(1, 1).Value = Movie.Title
.Cells(1, 2).Value = Movie.Year
.Cells(1, 3).Value = Movie.Rated
.Cells(1, 4).Value = Movie.Released
.Cells(1, 5).Value = Movie.Runtime
.Cells(1, 6).Value = Movie.Director
.Cells(1, 7).Value = Movie.Writer
.Cells(1, 8).Value = Movie.Actors
.Cells(1, 9).Value = Movie.Plot
.Cells(1, 10).Value = Movie.Language
.Cells(1, 11).Value = Movie.Country
.Cells(1, 12).Value = Movie.imdbRating
End With
End With
End Sub
I store date in the DB in UTC format but then I show them to the final user in their local timezone
// retrieve
$d = (new \DateTime($val . ' UTC'))->format('U');
return date("Y-m-d H:i:s", $d);
I did it like this
if (document.location.hash != '') {
//get the index from URL hash
var tabSelect = document.location.hash.substr(1, document.location.hash.length);
console.log("tabSelect: " + tabSelect);
if (tabSelect == 'discount')
{
var index = $('#myTab a[href="#discount"]').parent().index();
$("#tabs").tabs("option", "active", index);
$($('#myTab a[href="#discount"]')).tab('show');
}
}
I didn't create my virtualenv using sudo. So Sebastian's answer didn't apply to me. My project is called utils
. I checked utils
directory and saw this:
-rw-r--r-- 1 macuser staff 983 6 Jan 15:17 README.md
drwxr-xr-x 6 root staff 204 6 Jan 14:36 utils.egg-info
-rw-r--r-- 1 macuser staff 31 6 Jan 15:09 requirements.txt
As you can see, utils.egg-info
is owned by root
not macuser
. That is why it was giving me permission denied
error. I also had to remove /Users/macuser/.virtualenvs/armoury/lib/python2.7/site-packages/utils.egg-link
as it was created by root
as well. I did pip install -e .
again after removing those, and it worked.
As explained in here: https://css-tricks.com/centering-in-the-unknown/.
As tested in the real practice, the most reliable yet elegant solution is to insert an assistent inline element into the
<li />
element as the 1st child, which height should be set to 100% (of its parent’s height, the<li />
), and itsvertical-align
set to middle. To achieve this, you can put a<span />
, but the most convenient way is to useli:after
pseudo class.
Screenshot:
ul.menu-horizontal {
list-style-type: none;
margin: 0;
padding: 0;
display: inline-block;
vertical-align: middle;
}
ul.menu-horizontal:after {
content: '';
clear: both;
float: none;
display: block;
}
ul.menu-horizontal li {
padding: 5px 10px;
box-sizing: border-box;
height: 100%;
cursor: pointer;
display: inline-block;
vertical-align: middle;
float: left;
}
/* The magic happens here! */
ul.menu-horizontal li:before {
content: '';
display: inline;
height: 100%;
vertical-align: middle;
}
If you're trying to take advantage of polymorphic behavior, you need to ensure that the methods visible to outside classes (that need polymorphism) have the same signature. That means they need to have the same name, number and order of parameters, as well as the parameter types.
In your case, you might do better to have a generic draw()
method, and rely on the subclasses (Rectangle
, Ellipse
) to implement the draw()
method as what you had been thinking of as "drawEllipse" and "drawRectangle".