SOLUTION:
cd "Documents and Photos"
problem solved.
The reason I'm submitting this answer is you'll find that StackOverflow is being used by every day users (not just web devs, programmers or power users) and this was the number one result for a simple Windows user question on Google.
People are becoming more tech-savvy, but aren't necessarily familiar with command line in the cases above.
If you want to perform actions like cd
, then use:
String[] command = {command_to_be_executed, arg1, arg2};
ProcessBuilder builder = new ProcessBuilder(command);
builder = builder.directory(new File("directory_location"));
Example:
String[] command = {"ls", "-al"};
ProcessBuilder builder = new ProcessBuilder(command);
builder = builder.directory(new File("/ngs/app/abc"));
Process p = builder.start();
It is important that you split the command and all arguments in separate strings of the string array (otherwise they will not be provided correctly by the ProcessBuilder
API).
You can change the working directory with:
import os
os.chdir(path)
There are two best practices to follow when using this method:
Changing the current working directory in a subprocess does not change the current working directory in the parent process. This is true of the Python interpreter as well. You cannot use os.chdir()
to change the CWD of the calling process.
You can run a script, or a more complex parameter to the RUN. Here is an example from a Dockerfile I've downloaded to look at previously:
RUN cd /opt && unzip treeio.zip && mv treeio-master treeio && \
rm -f treeio.zip && cd treeio && pip install -r requirements.pip
Because of the use of '&&', it will only get to the final 'pip install' command if all the previous commands have succeeded.
In fact, since every RUN creates a new commit & (currently) an AUFS layer, if you have too many commands in the Dockerfile, you will use up the limits, so merging the RUNs (when the file is stable) can be a very useful thing to do.
What you are trying to do is not possible. The reason for this is that in a POSIX system (Linux, OSX, etc), a child process cannot modify the environment of a parent process. This includes modifying the parent process's working directory and environment variables.
When you are on the commandline and you go to execute your Node script, your current process (bash
, zsh
, whatever) spawns a new process which has it's own environment, typically a copy of your current environment (it is possible to change this via system calls; but that's beyond the scope of this reply), allowing that process to do whatever it needs to do in complete isolation. When the subprocess exits, control is handed back to your shell's process, where the environment hasn't been affected.
There are a lot of reasons for this, but for one, imagine that you executed a script in the background (via ./foo.js &
) and as it ran, it started changing your working directory or overriding your PATH
. That would be a nightmare.
If you need to perform some actions that require changing your working directory of your shell, you'll need to write a function in your shell. For example, if you're running Bash, you could put this in your ~/.bash_profile
:
do_cool_thing() {
cd "/Users"
echo "Hey, I'm in $PWD"
}
and then this cool thing is doable:
$ pwd
/Users/spike
$ do_cool_thing
Hey, I'm in /Users
$ pwd
/Users
If you need to do more complex things in addition, you could always call out to your nodejs script from that function.
This is the only way you can accomplish what you're trying to do.
ElektroStudios answer is a bit misleading.
"when you launch a bat file the working dir is the dir where it was launched" This is true if the user clicks on the batch file in the explorer.
However, if the script is called from another script using the CALL command, the current working directory does not change.
Thus, inside your script, it is better to use %~dp0subfolder\file1.txt
Please also note that %~dp0 will end with a backslash when the current script is not in the current working directory. Thus, if you need the directory name without a trailing backslash, you could use something like
call :GET_THIS_DIR
echo I am here: %THIS_DIR%
goto :EOF
:GET_THIS_DIR
pushd %~dp0
set THIS_DIR=%CD%
popd
goto :EOF
I know this might be an old question but I just found myself in a situation where I had to implement this feature in a Laravel 5.7 app. Below is what worked from me.
$articles = Articles::where("created_at",">", Carbon::now()->subMonths(3))->get();
You will also need to use Carbon
use Carbon\Carbon;
QR codes have three parameters: Datatype, size (number of 'pixels') and error correction level. How much information can be stored there also depends on these parameters. For example the lower the error correction level, the more information that can be stored, but the harder the code is to recognize for readers.
The maximum size and the lowest error correction give the following values:
Numeric only Max. 7,089 characters
Alphanumeric Max. 4,296 characters
Binary/byte Max. 2,953 characters (8-bit bytes)
So, for future reference for anybody who doesn't want to spend two days searching the internet to figure this out, when you encode byte arrays into QR Codes, you have to use the ISO-8859-1
character set, not UTF-8
.
Clean the project. And double-check the jars being really on the build path (with no errors). Also make sure there is nothing in the "Problems" view.
If you're using compass:
compass watch --output-style compressed
Building upon Daniel Q's and Patrick Artner's excellent suggestions, here is an even more generalized solution.
# Assuming Python3
import sys
class ValidationError(ValueError): # thanks Patrick Artner
pass
def validate_input(prompt, cast=str, cond=(lambda x: True), onerror=None):
if onerror==None: onerror = {}
while True:
try:
data = cast(input(prompt))
if not cond(data): raise ValidationError
return data
except tuple(onerror.keys()) as e: # thanks Daniel Q
print(onerror[type(e)], file=sys.stderr)
I opted for explicit if
and raise
statements instead of an assert
,
because assertion checking may be turned off,
whereas validation should always be on to provide robustness.
This may be used to get different kinds of input, with different validation conditions. For example:
# No validation, equivalent to simple input:
anystr = validate_input("Enter any string: ")
# Get a string containing only letters:
letters = validate_input("Enter letters: ",
cond=str.isalpha,
onerror={ValidationError: "Only letters, please!"})
# Get a float in [0, 100]:
percentage = validate_input("Percentage? ",
cast=float, cond=lambda x: 0.0<=x<=100.0,
onerror={ValidationError: "Must be between 0 and 100!",
ValueError: "Not a number!"})
Or, to answer the original question:
age = validate_input("Please enter your age: ",
cast=int, cond=lambda a:0<=a<150,
onerror={ValidationError: "Enter a plausible age, please!",
ValueError: "Enter an integer, please!"})
if age >= 18:
print("You are able to vote in the United States!")
else:
print("You are not able to vote in the United States.")
In case this is useful to anyone I had this same issue. I was bringing in a footer into a web page via jQuery. Inside that footer were some Google scripts for ads and retargeting. I had to move those scripts from the footer and place them directly in the page and that eliminated the notice.
if you have a date in a string with the format "ddMMyyyy" and want to convert it to "yyyyMMdd" you could do like this:
DateTime dt = DateTime.ParseExact(dateString, "ddMMyyyy",
CultureInfo.InvariantCulture);
dt.ToString("yyyyMMdd");
Server.MapPath specifies the relative or virtual path to map to a physical directory.
Server.MapPath(".")
1 returns the current physical directory of the file (e.g. aspx) being executedServer.MapPath("..")
returns the parent directoryServer.MapPath("~")
returns the physical path to the root of the applicationServer.MapPath("/")
returns the physical path to the root of the domain name (is not necessarily the same as the root of the application)An example:
Let's say you pointed a web site application (http://www.example.com/
) to
C:\Inetpub\wwwroot
and installed your shop application (sub web as virtual directory in IIS, marked as application) in
D:\WebApps\shop
For example, if you call Server.MapPath()
in following request:
http://www.example.com/shop/products/GetProduct.aspx?id=2342
then:
Server.MapPath(".")
1 returns D:\WebApps\shop\products
Server.MapPath("..")
returns D:\WebApps\shop
Server.MapPath("~")
returns D:\WebApps\shop
Server.MapPath("/")
returns C:\Inetpub\wwwroot
Server.MapPath("/shop")
returns D:\WebApps\shop
If Path starts with either a forward slash (/
) or backward slash (\
), the MapPath()
returns a path as if Path was a full, virtual path.
If Path doesn't start with a slash, the MapPath()
returns a path relative to the directory of the request being processed.
Note: in C#, @
is the verbatim literal string operator meaning that the string should be used "as is" and not be processed for escape sequences.
Footnotes
Server.MapPath(null)
and Server.MapPath("")
will produce this effect too.Just single if conditions
<select name="category_type[]" id="category_type" class="select2 m-b-10 select2-multiple" style="width: 100%" multiple="multiple" data-placeholder="Choose" tooltip="Select Category Type">
@foreach ($categoryTypes as $categoryType)
<option value="{{ $categoryType->id }}"
**@if(in_array($categoryType->id,
request()->get('category_type')??[]))selected="selected"
@endif**>
{{ ucfirst($categoryType->title) }}</option>
@endforeach
</select>
found the solution with AND condition:
$trainstrength = "UPDATE user_character SET strength_trains = strength_trains + 1, trained_strength = trained_strength +1, character_gold = character_gold - $gold_to_next_strength WHERE ID = $currentUser AND character_gold > $gold_to_next_strength";
Check if the session is empty or not in C# MVC Version Lower than 5.
if (!string.IsNullOrEmpty(Session["emp_num"] as string))
{
//cast it and use it
//business logic
}
Check if the session is empty or not in C# MVC Version Above 5.
if(Session["emp_num"] != null)
{
//cast it and use it
//business logic
}
The advantage is that Object.create
is typically slower than new
on most browsers
In this jsperf example, in a Chromium, browser new
is 30 times as fast as Object.create(obj)
although both are pretty fast. This is all pretty strange because new does more things (like invoking a constructor) where Object.create should be just creating a new Object with the passed in object as a prototype (secret link in Crockford-speak)
Perhaps the browsers have not caught up in making Object.create
more efficient (perhaps they are basing it on new
under the covers ... even in native code)
Following is the way to change the color of the left icon in edit text and set it in left side.
Drawable img = getResources().getDrawable( R.drawable.user );
img.setBounds( 0, 0, 60, 60 );
mNameEditText.setCompoundDrawables(img,null, null, null);
int color = ContextCompat.getColor(this, R.color.blackColor);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
DrawableCompat.setTint(img, color);
} else {
img.mutate().setColorFilter(color, PorterDuff.Mode.SRC_IN);
}
If you have untarred your own version of tomcat v8 with a root user into a custom directory (linux) then the default permissions on the TOMCATROOT/lib directory do not allow normal user access.
Eclipse will not be able to see the catalina.jar to check the version. So no amount of fiddling aorund with the server.properties will help!
just add chmod u+x lib/ to allow normal user access to the libs.
If you are using GitBash
Step one:
netstat -ano | findstr :8080
Step two:
taskkill /PID typeyourPIDhere /F
(/F
forcefully terminates the process)
You should have a look at env.js. See my blog for an example how to write unit tests with env.js.
or you can
SELECT
String_to_array(CASE
WHEN <condition 1> THEN a1||','||b1
WHEN <condition 2> THEN a2||','||b2
ELSE a3||','||b3
END, ',') K
FROM <table>
I am late for the party. Try replacing as below, mine worked perfectly- "DOMDocument" to "MSXML2.DOMDocument60" "XMLHTTP" to "MSXML2.XMLHTTP60"
It sounds like what you want is a User who has many Questions.
The Question has many Answers, one of which is the User's Choice.
Is this what you are after?
I would model something like that along these lines:
class User
has_many :questions
end
class Question
belongs_to :user
has_many :answers
has_one :choice, :class_name => "Answer"
validates_inclusion_of :choice, :in => lambda { answers }
end
class Answer
belongs_to :question
end
Set up a flux container
simple example
import alt from './../../alt.js';
class PostActions {
constructor(){
this.generateActions('setMessages');
}
setMessages(indexArray){
this.actions.setMessages(indexArray);
}
}
export default alt.createActions(PostActions);
store looks like this
class PostStore{
constructor(){
this.messages = [];
this.bindActions(MessageActions);
}
setMessages(messages){
this.messages = messages;
}
}
export default alt.createStore(PostStore);
Then every component that listens to the store can share this variable In your constructor is where you should grab it
constructor(props){
super(props);
//here is your data you get from the store, do what you want with it
var messageStore = MessageStore.getState();
}
componentDidMount() {
MessageStore.listen(this.onMessageChange.bind(this));
}
componentWillUnmount() {
MessageStore.unlisten(this.onMessageChange.bind(this));
}
onMessageChange(state){
//if the data ever changes each component listining will be notified and can do the proper processing.
}
This way, you can share you data across the app without every component having to communicate with each other.
sudo apt-get install g++ curl libssl-dev apache2-utils
sudo apt-get install git-core
git clone git://github.com/ry/node.git
cd node
./configure
make
sudo make install
>>> test = "have it break."
>>> selectiveEscape = "Print percent %% in sentence and not %s" % test
>>> print selectiveEscape
Print percent % in sentence and not have it break.
I got the same problem with @ManyToOne
column. It was solved... in stupid way. I had all other annotations for public getter methods, because they were overridden from parent class. But last field was annotated for private variable like in all other classes in my project. So I got the same MappingException
without the reason.
Solution: I placed all annotations at public getter methods. I suppose, Hibernate can't handle cases, when annotations for private fields and public getters are mixed in one class.
See the documentation on MDN about expressions and operators and statements.
this
keyword:var x = function()
vs. function x()
— Function declaration syntax(function(){
…})()
— IIFE (Immediately Invoked Function Expression)(function(){…})();
work but function(){…}();
doesn't?(function(){…})();
vs (function(){…}());
!function(){…}();
- What does the exclamation mark do before the function?+function(){…}();
- JavaScript plus sign in front of function expression!
vs leading semicolon(function(window, undefined){…}(window));
someFunction()()
— Functions which return other functions=>
— Equal sign, greater than: arrow function expression syntax|>
— Pipe, greater than: Pipeline operatorfunction*
, yield
, yield*
— Star after function
or yield
: generator functions[]
, Array()
— Square brackets: array notationIf the square brackets appear on the left side of an assignment ([a] = ...
), or inside a function's parameters, it's a destructuring assignment.
{key: value}
— Curly brackets: object literal syntax (not to be confused with blocks)If the curly brackets appear on the left side of an assignment ({ a } = ...
) or inside a function's parameters, it's a destructuring assignment.
`
…${
…}
…`
— Backticks, dollar sign with curly brackets: template literals`…${…}…`
code from the node docs mean?/
…/
— Slashes: regular expression literals$
— Dollar sign in regex replace patterns: $$
, $&
, $`
, $'
, $n
()
— Parentheses: grouping operatorobj.prop
, obj[prop]
, obj["prop"]
— Square brackets or dot: property accessors?.
, ?.[]
, ?.()
— Question mark, dot: optional chaining operator::
— Double colon: bind operatornew
operator...iter
— Three dots: spread syntax; rest parameters(...args) => {}
— What is the meaning of “…args” (three dots) in a function definition?[...iter]
— javascript es6 array feature […data, 0] “spread operator”{...props}
— Javascript Property with three dots (…)++
, --
— Double plus or minus: pre- / post-increment / -decrement operatorsdelete
operatorvoid
operator+
, -
— Plus and minus: addition or concatenation, and subtraction operators; unary sign operators|
, &
, ^
, ~
— Single pipe, ampersand, circumflex, tilde: bitwise OR, AND, XOR, & NOT operators~1
equal -2
?%
— Percent sign: remainder operator&&
, ||
, !
— Double ampersand, double pipe, exclamation point: logical operators??
— Double question mark: nullish-coalescing operator**
— Double star: power operator (exponentiation)x ** 2
is equivalent to Math.pow(x, 2)
==
, ===
— Equal signs: equality operators!=
, !==
— Exclamation point and equal signs: inequality operators<<
, >>
, >>>
— Two or three angle brackets: bit shift operators?
…:
… — Question mark and colon: conditional (ternary) operator=
— Equal sign: assignment operator%=
— Percent equals: remainder assignment+=
— Plus equals: addition assignment operator&&=
, ||=
, ??=
— Double ampersand, pipe, or question mark, followed by equal sign: logical assignments||=
(or equals) in JavaScript?,
— Comma operator{
…}
— Curly brackets: blocks (not to be confused with object literal syntax)var
, let
, const
— Declaring variableslabel:
— Colon: labels#
— Hash (number sign): Private methods or private fieldsTry:
String str = "my string \n my other string";
When printed you will get:
my string
my other string
cocoapod on terminal follow this:
sudo gem update
sudo gem install cocoapods
pod setup
cd (project direct drag link)
pod init
open -aXcode podfile (if its already open add your pod file name ex:alamofire4.3)
pod install
pod update
The answers which have already been posted suggest that some of the unusual values obtained by waitKey
are due to platform differences. Below, I propose that (at least on some platforms) the apparently odd behaviour of waitKey
is due to keyboard modifiers. This post looks similar to Tomasz's answer because I initially wrote this as an edit, which was rejected.
The keycodes returned by waitKey
change depending on which modifiers are enabled. NumLock, CapsLock, and the Shift, Ctrl, and Alt keys all modify the keycode returned by waitKey
by enabling certain bits above the two Least Significant Bytes. The smallest of these flags is Shift at 0x10000.
A modified version of the script Tomasz posted is given below:
#!/usr/bin/env python
import cv2
import sys
cv2.imshow(sys.argv[1], cv2.imread(sys.argv[1]))
res = cv2.waitKey(0)
print 'You pressed %d (0x%x), 2LSB: %d (%s)' % (res, res, res % 2**16,
repr(chr(res%256)) if res%256 < 128 else '?')
Which give the following results:
q letter with NumLock:
You pressed 1048689 (0x100071), 2LSB: 113 ('q')
Escape key with CapsLock but not NumLock:
You pressed 131099 (0x2001b), 2LSB: 27 ('\x1b')
Space with Shift and NumLock:
You pressed 1114144 (0x110020), 2LSB: 32 (' ')
Right Arrow Key with Control, NumLock off:
You pressed 327507 (0x4ff53), 2LSB: 65363 ('S')
I hope that helps to explain the unusual behaviour of waitKey
and how to get the actual key pressed regardless of the state of NumLock and CapLock. From here it's relatively simple to do something like:
ctrlPressed = 0 != res & (1 << 18)
...as the "control key" flag is bit 19. Shift is at bit 17, the state of CapsLock at bit 18, Alt is at bit 20, and NumLock is at bit 21.
To make print view look like tablet or desktop include bootstrap as .less, not as .css and then you can overwrite bootstrap responsive classes in the end of bootstrap_variables file for example like this:
@container-sm: 1200px;
@container-md: 1200px;
@container-lg: 1200px;
@screen-sm: 0;
Don't worry about putting this variables in the end of the file. LESS supports lazy loading of variables so they will be applied.
Are you talking about getchar
function?
Try this -
select * from table where id in (3,4) or [name] in ('andy','paul');
var path = "path/to/myfile.png?foo=bar#hash";
console.log(
path.replace(/(\?.*)|(#.*)/g, "")
);
Dim myRow() As Data.DataRow
myRow = dt.Select("MyColumnName = 'SomeColumnTitle'")
myRow(0)("SomeOtherColumnTitle") = strValue
Code above instantiates a DataRow. Where "dt" is a DataTable, you get a row by selecting any column (I know, sounds backwards). Then you can then set the value of whatever row you want (I chose the first row, or "myRow(0)"), for whatever column you want.
I found a website offering a list of 20 distinctive colours: https://sashat.me/2017/01/11/list-of-20-simple-distinct-colors/
col_vector<-c('#e6194b', '#3cb44b', '#ffe119', '#4363d8', '#f58231', '#911eb4', '#46f0f0', '#f032e6', '#bcf60c', '#fabebe', '#008080', '#e6beff', '#9a6324', '#fffac8', '#800000', '#aaffc3', '#808000', '#ffd8b1', '#000075', '#808080', '#ffffff', '#000000')
You can have a try!
Just in case you (or someone else) could be interested in doing it without jQuery:
var exists = false;
for(var i = 0, opts = document.getElementById('select-box').options; i < opts.length; ++i)
if( opts[i].value === 'bar' )
{
exists = true;
break;
}
Reference article: Show red color border for invalid input fields angualrjs
I used ng-class on all input fields.like below
<input type="text" ng-class="{submitted:newEmployee.submitted}" placeholder="First Name" data-ng-model="model.firstName" id="FirstName" name="FirstName" required/>
when I click on save button I am changing newEmployee.submitted value to true(you can check it in my question). So when I click on save, a class named submitted gets added to all input fields(there are some other classes initially added by angularjs).
So now my input field contains classes like this
class="ng-pristine ng-invalid submitted"
now I am using below css code to show red border on all invalid input fields(after submitting the form)
input.submitted.ng-invalid
{
border:1px solid #f00;
}
Thank you !!
Update:
We can add the ng-class at the form element instead of applying it to all input elements. So if the form is submitted, a new class(submitted) gets added to the form element. Then we can select all the invalid input fields using the below selector
form.submitted .ng-invalid
{
border:1px solid #f00;
}
One way would be (deprecated as of Hg2.7, August 2013)hg rollback
Please use
hg commit --amend
instead ofrollback
to correct mistakes in the last commit.Roll back the last transaction in a repository.
When committing or merging, Mercurial adds the changeset entry last.
Mercurial keeps a transaction log of the name of each file touched and its length prior to the transaction. On abort, it truncates each file to its prior length. This simplicity is one benefit of making revlogs append-only. The transaction journal also allows an undo operation.
See TortoiseHg Recovery section:
This thread also details the difference between hg rollback
and hg strip
:
(written by Martin Geisler who also contributes on SO)
'
hg rollback
' will remove the last transaction. Transactions are a concept often found in databases. In Mercurial we start a transaction when certain operations are run, such as commit, push, pull...
When the operation finishes succesfully, the transaction is marked as complete. If an error occurs, the transaction is "rolled back" and the repository is left in the same state as before.
You can manually trigger a rollback with 'hg rollback'. This will undo the last transactional command. If a pull command brought 10 new changesets into the repository on different branches, then 'hg rollback
' will remove them all. Please note: there is no backup when you rollback a transaction!'
hg strip
' will remove a changeset and all its descendants. The changesets are saved as a bundle, which you can apply again if you need them back.
ForeverWintr suggests in the comments (in 2016, 5 years later)
You can 'un-commit' files by first hg forgetting them, e.g.:
hg forget filea; hg commit --amend
, but that seems unintuitive.
hg strip --keep
is probably a better solution for modern hg.
As you said, Safari sends Cache-Control: max-age=0
on reload. Express (or more specifically, Express's dependency, node-fresh) considers the cache stale when Cache-Control: no-cache
headers are received, but it doesn't do the same for Cache-Control: max-age=0
. From what I can tell, it probably should. But I'm not an expert on caching.
The fix is to change (what is currently) line 37 of node-fresh/index.js
from
if (cc && cc.indexOf('no-cache') !== -1) return false;
to
if (cc && (cc.indexOf('no-cache') !== -1 ||
cc.indexOf('max-age=0') !== -1)) return false;
I forked node-fresh and express to include this fix in my project's package.json
via npm
, you could do the same. Here are my forks, for example:
https://github.com/stratusdata/node-fresh https://github.com/stratusdata/express#safari-reload-fix
The safari-reload-fix branch is based on the 3.4.7 tag.
For other users who just want to download a file/folder from github, simply use:
svn export <repo>/trunk/<folder>
e.g.
svn export https://github.com/lodash/lodash.com/trunk/docs
(yes, that's svn here. apparently in 2016 you still need svn to simply download some github files)
Courtesy: Download a single folder or directory from a GitHub repo
Important - Make sure you update the github URL and replace /tree/master/
with '/trunk/'.
As bash script:
git-download(){
folder=${@/tree\/master/trunk}
folder=${folder/blob\/master/trunk}
svn export $folder
}
Note This method downloads a folder, does not clone/checkout it. You can't push changes back to the repository. On the other hand - this results in smaller download compared to sparse checkout or shallow checkout.
The error you are getting is in line 3. i.e. it is not in
CONSTRAINT no_duplicate_tag UNIQUE (question_id, tag_id)
but earlier:
CREATE TABLE tags
(
(question_id, tag_id) NOT NULL,
Correct table definition is like pilcrow showed.
And if you want to add unique on tag1, tag2, tag3 (which sounds very suspicious), then the syntax is:
CREATE TABLE tags (
question_id INTEGER NOT NULL,
tag_id SERIAL NOT NULL,
tag1 VARCHAR(20),
tag2 VARCHAR(20),
tag3 VARCHAR(20),
PRIMARY KEY(question_id, tag_id),
UNIQUE (tag1, tag2, tag3)
);
or, if you want to have the constraint named according to your wish:
CREATE TABLE tags (
question_id INTEGER NOT NULL,
tag_id SERIAL NOT NULL,
tag1 VARCHAR(20),
tag2 VARCHAR(20),
tag3 VARCHAR(20),
PRIMARY KEY(question_id, tag_id),
CONSTRAINT some_name UNIQUE (tag1, tag2, tag3)
);
As described here for a post request :
var http = require('http');
var options = {
host: 'www.host.com',
path: '/',
port: '80',
method: 'POST'
};
callback = function(response) {
var str = ''
response.on('data', function (chunk) {
str += chunk;
});
response.on('end', function () {
console.log(str);
});
}
var req = http.request(options, callback);
//This is the data we are posting, it needs to be a string or a buffer
req.write("data");
req.end();
For what it's worth, here is my way:
List<string> list = new List<string>(new string[] { "cat", "Dog", "parrot", "dog", "parrot", "goat", "parrot", "horse", "goat" });
Dictionary<string, int> wordCount = new Dictionary<string, int>();
//count them all:
list.ForEach(word =>
{
string key = word.ToLower();
if (!wordCount.ContainsKey(key))
wordCount.Add(key, 0);
wordCount[key]++;
});
//remove words appearing only once:
wordCount.Keys.ToList().FindAll(word => wordCount[word] == 1).ForEach(key => wordCount.Remove(key));
Console.WriteLine(string.Format("Found {0} duplicates in the list:", wordCount.Count));
wordCount.Keys.ToList().ForEach(key => Console.WriteLine(string.Format("{0} appears {1} times", key, wordCount[key])));
I'm going to assume that your lack of quotes around the selector is just a transcription error, but you should check it anyway. Also, I don't see where you are actually giving the form an id. Usually you do this with the htmlAttributes parameter. I don't see you using the signature that has it. Again, though, if the form is submitting at all, this could be a transcription error.
If the selector and the id aren't the problem I'm suspicious that it might be because the click handler is added via markup when you use the Ajax BeginForm extension. You might try using $('form').trigger('submit') or in the worst case, have the click handler on the anchor create a hidden submit button in the form and click it. Or even create your own ajax submission using pure jQuery (which is probably what I would do).
Lastly, you should realize that by replacing the submit button, you're going to totally break this for people who don't have javascript enabled. The way around this is to also have a button hidden using a noscript tag and handle both AJAX and non-AJAX posts on the server.
BTW, it's consider standard practice, Microsoft not withstanding, to add the handlers via javascript not via markup. This keeps your javascript organized in one place so you can more easily see what's going on on the form. Here's an example of how I would use the trigger mechanism.
$(function() {
$('form#ajaxForm').find('a.submit-link').click( function() {
$('form#ajaxForm').trigger('submit');
}).show();
}
<% using (Ajax.BeginForm("Update", "Description", new { id = Model.Id },
new AjaxOptions
{
UpdateTargetId = "DescriptionDiv",
HttpMethod = "post"
}, new { id = "ajaxForm" } )) {%>
Description:
<%= Html.TextBox("Description", Model.Description) %><br />
<a href="#" class="submit-link" style="display: none;">Save</a>
<noscript>
<input type="submit" value="Save" />
</noscript>
<% } %>
You may want to try Web Server for Chrome, which serves web pages from a local folder using HTTP. It's simple to use and would avoid the flag, which, as someone mentioned above, might make your file system vulnerable.
I didn't see (hope I didn't miss it) anyone checking the object before the property. So, this is the shortest and most effective (though not necessarily the most clear):
if (obj && obj.prop) {
// Do something;
}
If the obj or obj.prop is undefined, null, or "falsy", the if statement will not execute the code block. This is usually the desired behavior in most code block statements (in JavaScript).
.zip application/zip, application/octet-stream
Every method should be within a class. Your method derivativeQuiz
is outside a class.
public class ClassName {
///your methods
}
@System.Configuration.ConfigurationManager.AppSettings["myKey"]
You can find details via the below script.
-- List all Locks of the Current Database
SELECT TL.resource_type AS ResType
,TL.resource_description AS ResDescr
,TL.request_mode AS ReqMode
,TL.request_type AS ReqType
,TL.request_status AS ReqStatus
,TL.request_owner_type AS ReqOwnerType
,TAT.[name] AS TransName
,TAT.transaction_begin_time AS TransBegin
,DATEDIFF(ss, TAT.transaction_begin_time, GETDATE()) AS TransDura
,ES.session_id AS S_Id
,ES.login_name AS LoginName
,COALESCE(OBJ.name, PAROBJ.name) AS ObjectName
,PARIDX.name AS IndexName
,ES.host_name AS HostName
,ES.program_name AS ProgramName
FROM sys.dm_tran_locks AS TL
INNER JOIN sys.dm_exec_sessions AS ES
ON TL.request_session_id = ES.session_id
LEFT JOIN sys.dm_tran_active_transactions AS TAT
ON TL.request_owner_id = TAT.transaction_id
AND TL.request_owner_type = 'TRANSACTION'
LEFT JOIN sys.objects AS OBJ
ON TL.resource_associated_entity_id = OBJ.object_id
AND TL.resource_type = 'OBJECT'
LEFT JOIN sys.partitions AS PAR
ON TL.resource_associated_entity_id = PAR.hobt_id
AND TL.resource_type IN ('PAGE', 'KEY', 'RID', 'HOBT')
LEFT JOIN sys.objects AS PAROBJ
ON PAR.object_id = PAROBJ.object_id
LEFT JOIN sys.indexes AS PARIDX
ON PAR.object_id = PARIDX.object_id
AND PAR.index_id = PARIDX.index_id
WHERE TL.resource_database_id = DB_ID()
AND ES.session_id <> @@Spid -- Exclude "my" session
-- optional filter
AND TL.request_mode <> 'S' -- Exclude simple shared locks
ORDER BY TL.resource_type
,TL.request_mode
,TL.request_type
,TL.request_status
,ObjectName
,ES.login_name;
--TSQL commands
SELECT
db_name(rsc_dbid) AS 'DATABASE_NAME',
case rsc_type when 1 then 'null'
when 2 then 'DATABASE'
WHEN 3 THEN 'FILE'
WHEN 4 THEN 'INDEX'
WHEN 5 THEN 'TABLE'
WHEN 6 THEN 'PAGE'
WHEN 7 THEN 'KEY'
WHEN 8 THEN 'EXTEND'
WHEN 9 THEN 'RID ( ROW ID)'
WHEN 10 THEN 'APPLICATION' end AS 'REQUEST_TYPE',
CASE req_ownertype WHEN 1 THEN 'TRANSACTION'
WHEN 2 THEN 'CURSOR'
WHEN 3 THEN 'SESSION'
WHEN 4 THEN 'ExSESSION' END AS 'REQUEST_OWNERTYPE',
OBJECT_NAME(rsc_objid ,rsc_dbid) AS 'OBJECT_NAME',
PROCESS.HOSTNAME ,
PROCESS.program_name ,
PROCESS.nt_domain ,
PROCESS.nt_username ,
PROCESS.program_name ,
SQLTEXT.text
FROM sys.syslockinfo LOCK JOIN
sys.sysprocesses PROCESS
ON LOCK.req_spid = PROCESS.spid
CROSS APPLY sys.dm_exec_sql_text(PROCESS.SQL_HANDLE) SQLTEXT
where 1=1
and db_name(rsc_dbid) = db_name()
--Lock on a specific object
SELECT *
FROM sys.dm_tran_locks
WHERE resource_database_id = DB_ID()
AND resource_associated_entity_id = object_id('Specific Table');
if you have async dom changes, this function checks (with time limit in seconds) for the DOM elements, it will not be heavy for the DOM and its Promise based :)
function getElement(selector, i = 5) {
return new Promise(async (resolve, reject) => {
if(i <= 0) return reject(`${selector} not found`);
const elements = document.querySelectorAll(selector);
if(elements.length) return resolve(elements);
return setTimeout(async () => await getElement(selector, i-1), 1000);
})
}
// Now call it with your selector
try {
element = await getElement('.woohoo');
} catch(e) { // catch the e }
//OR
getElement('.woohoo', 5)
.then(element => { // do somthing with the elements })
.catch(e => { // catch the error });
with latest CSS3 technology, it is possible to create textured background. Check this out: http://lea.verou.me/css3patterns/#
but it still limited on so many aspect. And browser support is also not so ready.
your best bet is using small texture image and make repeat to that background. you could get some nice ready to use texture image here:
I don't think you can delete from multiple tables at once (though I'm not certain).
It sounds to me, however, that you would be best to achieve this effect with a relationship that cascades deletes. If you did this you would be able to delete the record from one table and the records in the other would be automatically deleted.
As an example, say the two tables represent a customer, and the customer's orders. If you setup the relationship to cascade deletes, you could simply delete record in the customer table, and the orders would get deleted automatically.
See the MSDN doc on cascading referential integrity constraints.
The previous accepted solution is not working any longer.
I ended up coding a simple function which wraps the range
into a styled container adding the bar that is needed before the cursor.
I wrote this example where easy to see the two colors 'blue' and 'orange' set in the css, so they can be quickly modified.
Also, this could make it works:
@{
Html.RenderPartial("your view", your_model, ViewData);
}
or
@{
Html.RenderPartial("your view", your_model);
}
For more information on RenderPartial and similar HTML helpers in MVC see this popular StackOverflow thread
To provide another approach similar to the answer by @IvanCollantes.
It works by additionally filtering the required checkboxes by name. I also simplified the code a bit and checks for a default checked
checkbox.
jQuery(function($) {_x000D_
var requiredCheckboxes = $(':checkbox[required]');_x000D_
requiredCheckboxes.on('change', function(e) {_x000D_
var checkboxGroup = requiredCheckboxes.filter('[name="' + $(this).attr('name') + '"]');_x000D_
var isChecked = checkboxGroup.is(':checked');_x000D_
checkboxGroup.prop('required', !isChecked);_x000D_
});_x000D_
requiredCheckboxes.trigger('change');_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>_x000D_
<form target="_blank">_x000D_
<p>_x000D_
At least one checkbox from each group is required..._x000D_
</p>_x000D_
<fieldset>_x000D_
<legend>Checkboxes Group test</legend>_x000D_
<label>_x000D_
<input type="checkbox" name="test[]" value="1" checked="checked" required="required">test-1_x000D_
</label>_x000D_
<label>_x000D_
<input type="checkbox" name="test[]" value="2" required="required">test-2_x000D_
</label>_x000D_
<label>_x000D_
<input type="checkbox" name="test[]" value="3" required="required">test-3_x000D_
</label>_x000D_
</fieldset>_x000D_
<br>_x000D_
<fieldset>_x000D_
<legend>Checkboxes Group test2</legend>_x000D_
<label>_x000D_
<input type="checkbox" name="test2[]" value="1" required="required">test2-1_x000D_
</label>_x000D_
<label>_x000D_
<input type="checkbox" name="test2[]" value="2" required="required">test2-2_x000D_
</label>_x000D_
<label>_x000D_
<input type="checkbox" name="test2[]" value="3" required="required">test2-3_x000D_
</label>_x000D_
</fieldset>_x000D_
<hr>_x000D_
<button type="submit" value="submit">Submit</button>_x000D_
</form>
_x000D_
"I want to hide some of the fields and do some complex validation."
I start with the built-in admin interface.
Build the ModelForm to show the desired fields.
Extend the Form with the validation rules within the form. Usually this is a clean
method.
Be sure this part works reasonably well.
Once this is done, you can move away from the built-in admin interface.
Then you can fool around with multiple, partially related forms on a single web page. This is a bunch of template stuff to present all the forms on a single page.
Then you have to write the view function to read and validated the various form things and do the various object saves().
"Is it a design issue if I break down and hand-code everything?" No, it's just a lot of time for not much benefit.
For texts in utf-8, it worked for me mb_convert_encoding. To process everything regardless of errors, make sure you use the "@".
The basic code I use is:
$dom = new DOMDocument();
@$dom->loadHTML(mb_convert_encoding($html, 'HTML-ENTITIES', 'UTF-8'));
$body = $dom->getElementsByTagName('body')->item(0);
echo $body->textContent;
If you want something more advanced, you can iteratively analyze the nodes, but you will encounter many problems with whitespaces.
I have implemented a converter based on what I say here. If you are interested, you can download it from git https://github.com/kranemora/html2text
It may serve as a reference to make yours
You can use it like this:
$html = <<<EOF
<p>Welcome to <strong>html2text<strong></p>
<p>It's <em>works</em> for you?</p>
EOF;
$html2Text = new \kranemora\Html2Text\Html2Text;
$text = $html2Text->convert($html);
Another possibility would be to have a little NSNumber
subclass singleton.
The compiler isn't smart enough to know that at least one of your if
blocks will be executed. Therefore, it doesn't see that variables like annualRate
will be assigned no matter what. Here's how you can make the compiler understand:
if (creditPlan == "0")
{
// ...
}
else if (creditPlan == "1")
{
// ...
}
else if (creditPlan == "2")
{
// ...
}
else
{
// ...
}
The compiler knows that with an if/else block, one of the blocks is guaranteed to be executed, and therefore if you're assigning the variable in all of the blocks, it won't give the compiler error.
By the way, you can also use a switch
statement instead of if
s to maybe make your code cleaner.
ALTER TABLE TableName
DROP COLUMN Column1, Column2;
The syntax is
DROP { [ CONSTRAINT ] constraint_name | COLUMN column } [ ,...n ]
ALTER TABLE TableName
DROP COLUMN Column1,
DROP COLUMN Column2;
or like this1:
ALTER TABLE TableName
DROP Column1,
DROP Column2;
1 The word COLUMN
is optional and can be omitted, except for RENAME COLUMN
(to distinguish a column-renaming operation from the RENAME
table-renaming operation). More info here.
$("video").prop('muted', true); //mute
AND
$("video").prop('muted', false); //unmute
See all events here
(side note: use attr
if in jQuery < 1.6)
<-
does assignment in the current environment.
When you're inside a function R creates a new environment for you. By default it includes everything from the environment in which it was created so you can use those variables as well but anything new you create will not get written to the global environment.
In most cases <<-
will assign to variables already in the global environment or create a variable in the global environment even if you're inside a function. However, it isn't quite as straightforward as that. What it does is checks the parent environment for a variable with the name of interest. If it doesn't find it in your parent environment it goes to the parent of the parent environment (at the time the function was created) and looks there. It continues upward to the global environment and if it isn't found in the global environment it will assign the variable in the global environment.
This might illustrate what is going on.
bar <- "global"
foo <- function(){
bar <- "in foo"
baz <- function(){
bar <- "in baz - before <<-"
bar <<- "in baz - after <<-"
print(bar)
}
print(bar)
baz()
print(bar)
}
> bar
[1] "global"
> foo()
[1] "in foo"
[1] "in baz - before <<-"
[1] "in baz - after <<-"
> bar
[1] "global"
The first time we print bar we haven't called foo
yet so it should still be global - this makes sense. The second time we print it's inside of foo
before calling baz
so the value "in foo" makes sense. The following is where we see what <<-
is actually doing. The next value printed is "in baz - before <<-" even though the print statement comes after the <<-
. This is because <<-
doesn't look in the current environment (unless you're in the global environment in which case <<-
acts like <-
). So inside of baz
the value of bar stays as "in baz - before <<-". Once we call baz
the copy of bar inside of foo
gets changed to "in baz" but as we can see the global bar
is unchanged. This is because the copy of bar
that is defined inside of foo
is in the parent environment when we created baz
so this is the first copy of bar
that <<-
sees and thus the copy it assigns to. So <<-
isn't just directly assigning to the global environment.
<<-
is tricky and I wouldn't recommend using it if you can avoid it. If you really want to assign to the global environment you can use the assign function and tell it explicitly that you want to assign globally.
Now I change the <<-
to an assign statement and we can see what effect that has:
bar <- "global"
foo <- function(){
bar <- "in foo"
baz <- function(){
assign("bar", "in baz", envir = .GlobalEnv)
}
print(bar)
baz()
print(bar)
}
bar
#[1] "global"
foo()
#[1] "in foo"
#[1] "in foo"
bar
#[1] "in baz"
So both times we print bar inside of foo
the value is "in foo" even after calling baz
. This is because assign
never even considered the copy of bar
inside of foo because we told it exactly where to look. However, this time the value of bar in the global environment was changed because we explicitly assigned there.
Now you also asked about creating local variables and you can do that fairly easily as well without creating a function... We just need to use the local
function.
bar <- "global"
# local will create a new environment for us to play in
local({
bar <- "local"
print(bar)
})
#[1] "local"
bar
#[1] "global"
You're offsetting the shadow, so to get it to uniformly surround the box, don't offset it:
-moz-box-shadow: 0 0 3px #ccc;
-webkit-box-shadow: 0 0 3px #ccc;
box-shadow: 0 0 3px #ccc;
I really like grep() and grepl() for this purpose.
grep() returns a vector of integers, which indicate where matches are.
yo <- c("a", "a", "b", "b", "c", "c")
grep("b", yo)
[1] 3 4
grepl() returns a logical vector, with "TRUE" at the location of matches.
yo <- c("a", "a", "b", "b", "c", "c")
grepl("b", yo)
[1] FALSE FALSE TRUE TRUE FALSE FALSE
These functions are case-sensitive.
A single listening port can accept more than one connection simultaneously.
There is a '64K' limit that is often cited, but that is per client per server port, and needs clarifying.
Each TCP/IP packet has basically four fields for addressing. These are:
source_ip source_port destination_ip destination_port
<----- client ------> <--------- server ------------>
Inside the TCP stack, these four fields are used as a compound key to match up packets to connections (e.g. file descriptors).
If a client has many connections to the same port on the same destination, then three of those fields will be the same - only source_port
varies to differentiate the different connections. Ports are 16-bit numbers, therefore the maximum number of connections any given client can have to any given host port is 64K.
However, multiple clients can each have up to 64K connections to some server's port, and if the server has multiple ports or either is multi-homed then you can multiply that further.
So the real limit is file descriptors. Each individual socket connection is given a file descriptor, so the limit is really the number of file descriptors that the system has been configured to allow and resources to handle. The maximum limit is typically up over 300K, but is configurable e.g. with sysctl.
The realistic limits being boasted about for normal boxes are around 80K for example single threaded Jabber messaging servers.
For a multiuser Mac, this worked for me:
sudo chown -R $(whoami):admin $(brew --prefix)/*
Select the Body using chrome dev tools (Inspect ) and change in css overflow:visible,
If that doesn't work then check in below css file if html, body is set as overflow:hidden , change it as visible
This is actually a bug in the tutorials code. I was having the same issue and I finally realized the issue was in the "note_edit.xml" file.
Some of the layout_heigh/width attributes were set to "match_parent" which is not a valid value, they're supposed to be set to "fill_parent".
This was throwing a bug, that was causing the generation of the R.java file to fail. So, if you're having this issue, or a similar one, check all of your xml files and make sure that none of them have any errors.
Here is a link to VeriSign's SSL Certificate Installation Checker: https://knowledge.verisign.com/support/ssl-certificates-support/index?page=content&id=AR1130
Enter your URL, click "Test this Web Server" and it will tell you if there are issues with your intermediate certificate authority.
I know this is not the OP's problem, but I ran into the same error with an entirely different basis, so I just wanted to drop it here in case anyone else has the same. This is Windows-specific, and I assume does not affect Linux users.
I had a LibreOffice doc file, call it final report.odt
. I later changed its case to Final Report.odt
. In Windows, this doesn't even count as a rename. final report.odt
, Final Report.odt
, FiNaL RePoRt.oDt
are all the same. In Linux, these are all distinct.
When I eventually went to git rm "Final Report.odt"
and got the "pathspec did not match any files" error. Only when I use the original casing at the time the file was added -- git rm "final report.odt"
-- did it work.
Lesson learned: to change the case I should have instead done:
git mv "final report.odt" temp.odt
git mv temp.odt "Final Report.odt"
Again, that wasn't the problem for the OP here; and wouldn't affect a Linux user, as his posts shows he clearly is. I'm just including it for others who may have this problem in Windows git and stumble onto this question.
Change
vote = input('Enter the name of the player you wish to vote for')
to
vote = int(input('Enter the name of the player you wish to vote for'))
You are getting the input from the console as a string, so you must cast that input string to an int
object in order to do numerical operations.
Type hints are for maintainability and don't get interpreted by Python. In the code below, the line def add(self, ic:int)
doesn't result in an error until the next return...
line:
class C1:
def __init__(self):
self.idn = 1
def add(self, ic: int):
return self.idn + ic
c1 = C1()
c1.add(2)
c1.add(c1)
Traceback (most recent call last):
File "<input>", line 1, in <module>
File "<input>", line 5, in add
TypeError: unsupported operand type(s) for +: 'int' and 'C1'
Here is the sh for last used simulator and application. Just run sh and copy printed text and paste and run command for show in finder.
#!/bin/zsh
lastUsedSimulatorAndApplication=`ls -td -- ~/Library/Developer/CoreSimulator/Devices/*/data/Containers/Data/Application/*/ | head -n1`
echo $lastUsedSimulatorAndApplication
simply use delete
, but be aware that you should read fully what the effects are of using this:
delete object.index; //true
object.index; //undefined
but if I was to use like so:
var x = 1; //1
delete x; //false
x; //1
but if you do wish to delete variables in the global namespace, you can use it's global object such as window
, or using this
in the outermost scope i.e
var a = 'b';
delete a; //false
delete window.a; //true
delete this.a; //true
http://perfectionkills.com/understanding-delete/
another fact is that using delete on an array will not remove the index but only set the value to undefined, meaning in certain control structures such as for loops, you will still iterate over that entity, when it comes to array's you should use splice
which is a prototype of the array object.
Example Array:
var myCars=new Array();
myCars[0]="Saab";
myCars[1]="Volvo";
myCars[2]="BMW";
if I was to do:
delete myCars[1];
the resulting array would be:
["Saab", undefined, "BMW"]
but using splice like so:
myCars.splice(1,1);
would result in:
["Saab", "BMW"]
I found the solution of this problem and i should work i'm sure about this because i also face the same problem
here is my solution----->
var request = require('request');
//set url
var url = 'http://localhost:8088/example';
//set header
var headers = {
'Authorization': 'Your authorization'
};
//set form data
var form = {first_name: first_name, last_name: last_name};
//set request parameter
request.post({headers: headers, url: url, form: form, method: 'POST'}, function (e, r, body) {
var bodyValues = JSON.parse(body);
res.send(bodyValues);
});
As per Jenkins Documentation,
BUILD_NUMBER
is used. This number is identify how many times jenkins run this build process
$BUILD_NUMBER
is general syntax for it.
Use the wildcard "#" but beware that at some point you will have to somehow understand the data passing through the bus!
Here is the explanation:
https://www.w3.org/TR/css-flexbox-1/#flex-common
flex: <positive-number>
Equivalent to flex: <positive-number> 1 0. Makes the flex item flexible and sets the flex basis to zero, resulting in an item that receives the specified proportion of the free space in the flex container. If all items in the flex container use this pattern, their sizes will be proportional to the specified flex factor.
Therefore flex:1
is equivalent to flex: 1 1 0
By declaring it global
inside the function that accesses it:
g_c = 0
class TestClass():
def run(self):
global g_c
for i in range(10):
g_c = 1
print(g_c)
The Python documentation says this, about the global
statement:
The global statement is a declaration which holds for the entire current code block.
foreach (DataRow row in DataRow row in GridView1.Rows)
{
foreach (DataColumn c in GridView1.Columns)
bool ckbVal = (bool)(row[c.ColumnName]);
}
List<Object> list = new ArrayList();
for (Iterator<Object> iterator = list.iterator(); iterator.hasNext();) {
Object obj= iterator.next();
if (obj.getId().equals("1")) {
// Remove the current element from the iterator and the list.
iterator.remove();
}
}
try This
setTimeout( function(){
// call after 5 second
} , 5000 );
I got this when I accidentally passed too many parameters into a jquery function that only expected one callback parameter.
For others troubleshooting: make sure you check all your jquery function calls for extra parameters.
An easy solution, but not the proper way is to use raw SQL:
results = Members.objects.raw('SELECT * FROM myapp_members GROUP BY designation')
Another solution is to use the group_by
property:
query = Members.objects.all().query
query.group_by = ['designation']
results = QuerySet(query=query, model=Members)
You can now iterate over the results variable to retrieve your results. Note that group_by
is not documented and may be changed in future version of Django.
And... why do you want to use group_by
? If you don't use aggregation, you can use order_by
to achieve an alike result.
var objects={...}; this.getAllvalues = function () {
var vls = [];
for (var key in objects) {
vls.push(objects[key]);
}
return vls;
}
You can try a 3rd party library like json.net There's documention on the project site. It does say it requires .net 3.5.
Otherwise there's another one called Nii.json which i believe is a port from java. I found a link to it on this blog
python 3.2
with open("d://test.txt") as f:
k=(((i.split("\n"))[0].rstrip()).split() for i in f.readlines())
d={}
for i,_,v in k:
d.setdefault(i,[]).append(v)
One simple way is to append your list items in a StringBuilder
List<Integer> list = new ArrayList<>();
list.add(1);
list.add(2);
list.add(3);
StringBuilder b = new StringBuilder();
list.forEach(b::append);
System.out.println(b);
you can also try:
String s = list.stream().map(e -> e.toString()).reduce("", String::concat);
Explanation: map converts Integer stream to String stream, then its reduced as concatenation of all the elements.
Note: This is normal reduction
which performs in O(n2)
for better performance use a StringBuilder
or mutable reduction
similar to F. Böller's answer.
String s = list.stream().map(Object::toString).collect(Collectors.joining(","));
Ref: Stream Reduction
Are you looking for something like this?
SELECT CASE WHEN LEFT(created_ts, 1) LIKE '[0-9]'
THEN CONVERT(VARCHAR(10), CONVERT(datetime, created_ts, 1), 101)
ELSE CONVERT(VARCHAR(10), CONVERT(datetime, created_ts, 109), 101)
END created_ts
FROM table1
Output:
| CREATED_TS | |------------| | 02/20/2012 | | 11/29/2012 | | 02/20/2012 | | 11/29/2012 | | 02/20/2012 | | 11/29/2012 | | 11/16/2011 | | 02/20/2012 | | 11/29/2012 |
Here is SQLFiddle demo
I use the old PHP way..It unsets all session variables and doesn't require to specify each one of them in an array. And after unsetting the variables we destroy the session.
session_unset();
session_destroy();
The Windows API function GlobalMemoryStatusEx
can be called with p/invoke:
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
private class MEMORYSTATUSEX
{
public uint dwLength;
public uint dwMemoryLoad;
public ulong ullTotalPhys;
public ulong ullAvailPhys;
public ulong ullTotalPageFile;
public ulong ullAvailPageFile;
public ulong ullTotalVirtual;
public ulong ullAvailVirtual;
public ulong ullAvailExtendedVirtual;
public MEMORYSTATUSEX()
{
this.dwLength = (uint)Marshal.SizeOf(typeof(NativeMethods.MEMORYSTATUSEX));
}
}
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern bool GlobalMemoryStatusEx([In, Out] MEMORYSTATUSEX lpBuffer);
Then use like:
ulong installedMemory;
MEMORYSTATUSEX memStatus = new MEMORYSTATUSEX();
if( GlobalMemoryStatusEx( memStatus))
{
installedMemory = memStatus.ullTotalPhys;
}
Or you can use WMI (managed but slower) to query TotalPhysicalMemory
in the Win32_ComputerSystem
class.
If you want to check quietly via $? without the hassle of grep'ing wget's output you can use:
wget -q "http://blah.meh.com/my/path" -O /dev/null
Works even on URLs with just a path but has the disadvantage that something's really downloaded so this is not recommended when checking big files for existence.
To see the devices I was interested in, I had replace Win32_USBHub
by Win32_PnPEntity
in Adel Hazzah's code, based on this post. This works for me:
namespace ConsoleApplication1
{
using System;
using System.Collections.Generic;
using System.Management; // need to add System.Management to your project references.
class Program
{
static void Main(string[] args)
{
var usbDevices = GetUSBDevices();
foreach (var usbDevice in usbDevices)
{
Console.WriteLine("Device ID: {0}, PNP Device ID: {1}, Description: {2}",
usbDevice.DeviceID, usbDevice.PnpDeviceID, usbDevice.Description);
}
Console.Read();
}
static List<USBDeviceInfo> GetUSBDevices()
{
List<USBDeviceInfo> devices = new List<USBDeviceInfo>();
ManagementObjectCollection collection;
using (var searcher = new ManagementObjectSearcher(@"Select * From Win32_PnPEntity"))
collection = searcher.Get();
foreach (var device in collection)
{
devices.Add(new USBDeviceInfo(
(string)device.GetPropertyValue("DeviceID"),
(string)device.GetPropertyValue("PNPDeviceID"),
(string)device.GetPropertyValue("Description")
));
}
collection.Dispose();
return devices;
}
}
class USBDeviceInfo
{
public USBDeviceInfo(string deviceID, string pnpDeviceID, string description)
{
this.DeviceID = deviceID;
this.PnpDeviceID = pnpDeviceID;
this.Description = description;
}
public string DeviceID { get; private set; }
public string PnpDeviceID { get; private set; }
public string Description { get; private set; }
}
}
You need to leverage the @ViewChild
decorator to reference the child component from the parent one by injection:
import { Component, ViewChild } from 'angular2/core';
(...)
@Component({
selector: 'my-app',
template: `
<h1>My First Angular 2 App</h1>
<child></child>
<button (click)="submit()">Submit</button>
`,
directives:[App]
})
export class AppComponent {
@ViewChild(Child) child:Child;
(...)
someOtherMethod() {
this.searchBar.someMethod();
}
}
Here is the updated plunkr: http://plnkr.co/edit/mrVK2j3hJQ04n8vlXLXt?p=preview.
You can notice that the @Query
parameter decorator could also be used:
export class AppComponent {
constructor(@Query(Child) children:QueryList<Child>) {
this.childcmp = children.first();
}
(...)
}
Objective-c:
NSString *day = [@"10/04/2011" componentsSeparatedByString:@"/"][0];
Swift:
var day: String = "10/04/2011".componentsSeparatedByString("/")[0]
Simply, change the root folder name for your solution in your local machine, it will disconnect automatically.
You need to use jQuery('#bar')[0].click();
to simulate a mouse click on the actual DOM element (not the jQuery object), instead of using the .trigger()
jQuery method.
Note: DOM Level 2 .click()
doesn't work on some elements in Safari. You will need to use a workaround.
You want this:
AAPL:
- shares: -75.088
date: 11/27/2015
- shares: 75.088
date: 11/26/2015
The YAML equivalent of a JSON object is a mapping, which looks like these:
# flow style
{ foo: 1, bar: 2 }
# block style
foo: 1
bar: 2
Note that the first characters of the keys in a block mapping must be in the same column. To demonstrate:
# OK
foo: 1
bar: 2
# Parse error
foo: 1
bar: 2
The equivalent of a JSON array in YAML is a sequence, which looks like either of these (which are equivalent):
# flow style
[ foo bar, baz ]
# block style
- foo bar
- baz
In a block sequence the -
s must be in the same column.
Let's turn your JSON into YAML. Here's your JSON:
{"AAPL": [
{
"shares": -75.088,
"date": "11/27/2015"
},
{
"shares": 75.088,
"date": "11/26/2015"
},
]}
As a point of trivia, YAML is a superset of JSON, so the above is already valid YAML—but let's actually use YAML's features to make this prettier.
Starting from the inside out, we have objects that look like this:
{
"shares": -75.088,
"date": "11/27/2015"
}
The equivalent YAML mapping is:
shares: -75.088
date: 11/27/2015
We have two of these in an array (sequence):
- shares: -75.088
date: 11/27/2015
- shares: 75.088
date: 11/26/2015
Note how the -
s line up and the first characters of the mapping keys line up.
Finally, this sequence is itself a value in a mapping with the key AAPL
:
AAPL:
- shares: -75.088
date: 11/27/2015
- shares: 75.088
date: 11/26/2015
Parsing this and converting it back to JSON yields the expected result:
{
"AAPL": [
{
"date": "11/27/2015",
"shares": -75.088
},
{
"date": "11/26/2015",
"shares": 75.088
}
]
}
You can see it (and edit it interactively) here.
I answered my problem with a default width for all columns and cells, like below:
int width = 15; // Where width is number of caracters
sheet.setDefaultColumnWidth(width);
If you want to input more data into the form, you simply access the submitted data through $_POST.
If you have
<input type="text" name="firstname" />
you access it with
$firstname = $_POST["firstname"];
You could then update your query line to read
mysql_query("INSERT INTO dbProfiles (photo,firstname)
VALUES('{$filename}','{$firstname}')");
Note: Always filter and sanitize your data.
Because ... it (MILLISECONDS
) is a static field (hiding in an enumeration, but that's what it is) ... however it is being invoked upon an instance of the given type (but see below as this isn't really true1).
javac will "accept" that, but it should really be MyUnits.MILLISECONDS
(or non-prefixed in the applicable scope).
1 Actually, javac "rewrites" the code to the preferred form -- if m
happened to be null
it would not throw an NPE at run-time -- it is never actually invoked upon the instance).
Happy coding.
I'm not really seeing how the question title fits in with the rest :-) More accurate and specialized titles increase the likely hood the question/answers can benefit other programmers.
Best practices are to add getter method for that :
getImageURI() {
return "images/" + this.props.image;
}
<img className="image" src={this.getImageURI()} />
Then , if you have more logic later on, you can maintain the code smoothly.
NSAssert() calls to validate method parameters is pretty handy for tracking down and avoiding passing nils as well.
Googled "Permission denied (publickey). fatal: The remote end hung up unexpectedly", first result an exact SO dupe:
GitHub: Permission denied (publickey). fatal: The remote end hung up unexpectedly which links here in the accepted answer (from the original poster, no less): http://help.github.com/linux-set-up-git/
The accepted answer is great, but if you need to interact programmatically with PostgreSQL version maybe it's better to do:
SELECT current_setting('server_version_num'); -- Returns 90603 (9.6.3)
-- Or using SHOW command:
SHOW server_version_num; -- Returns 90603 too
It will return server version as an integer. This is how server version is tested in PostgreSQL source, e.g.:
/*
* This is a C code from pg_dump source.
* It will do something if PostgreSQL remote version (server) is lower than 9.1.0
*/
if (fout->remoteVersion < 90100)
/*
* Do something...
*/
Edited
ES6 solution:
[...new Set(a)];
Alternative:
Array.from(new Set(a));
Old response. O(n^2) (do not use it with large arrays!)
var arrayUnique = function(a) {
return a.reduce(function(p, c) {
if (p.indexOf(c) < 0) p.push(c);
return p;
}, []);
};
You could use viewport-percentage lenghts.
See: http://stanhub.com/how-to-make-div-element-100-height-of-browser-window-using-css-only/
It works like this:
.element{
height: 100vh; /* For 100% screen height */
width: 100vw; /* For 100% screen width */
}
More info also available through Mozilla Developer Network and W3C.
It is always encouraged in C++ that you have one class per header file, see this discussion in SO [1].
GManNickG answer's tells why this happen. But the best way to solve this is to put User
class in one header file (User.h
) and MyMessageBox
class in another header file (MyMessageBox.h
). Then in your User.h
you include MyMessageBox.h
and in MyMessageBox.h
you include User.h
. Do not forget "include gaurds" [2] so that your code compiles successfully.
I did use following solution to this:
findAllByStartDateLessThanEqualAndEndDateGreaterThanEqual(OffsetDateTime endDate, OffsetDateTime startDate);
These functions should work.
// First, cache your array dimensions so you don't have to
// access them during each iteration of your for loops.
int rowLength = array.length, // array width (# of columns)
colLength = array[0].length; // array height (# of rows)
// This is your function:
// Prints array elements row by row
var rowString = "";
for(int x = 0; x < rowLength; x++){ // x is the column's index
for(int y = 0; y < colLength; y++){ // y is the row's index
rowString += array[x][y];
} System.out.println(rowString)
}
// This is the one you want:
// Prints array elements column by column
var colString = "";
for(int y = 0; y < colLength; y++){ // y is the row's index
for(int x = 0; x < rowLength; x++){ // x is the column's index
colString += array[x][y];
} System.out.println(colString)
}
In the first block, the inner loop iterates over each item in the row before moving to the next column.
In the second block (the one you want), the inner loop iterates over all the columns before moving to the next row.
tl;dr:
Essentially, the for()
loops in both functions are switched. That's it.
I hope this helps you to understand the logic behind iterating over 2-dimensional arrays.
Also, this works whether you have a string[,] or string[][]
Note that if you've got your filesystem mounted with noatime for performance reasons, then the atime will likely show the creation time. Given that noatime results in a massive performance boost (by removing a disk write for every time a file is read), it may be a sensible configuration option that also gives you the results you want.
word-wrap
has been renamed to overflow-wrap
probably to avoid this confusion.
Now this is what we have:
The overflow-wrap property is used to specify whether or not the browser may break lines within words in order to prevent overflow when an otherwise unbreakable string is too long to fit in its containing box.
Possible values:
normal: Indicates that lines may only break at normal word break points.
break-word: Indicates that normally unbreakable words may be broken at arbitrary points if there are no otherwise acceptable break points in the line.
The word-break CSS property is used to specify whether to break lines within words.
Now back to your question, the main difference between overflow-wrap and word-break is that the first determines the behavior on an overflow situation, while the later determines the behavior on a normal situation (no overflow). An overflow situation happens when the container doesn't have enough space to hold the text. Breaking lines on this situation doesn't help because there's no space (imagine a box with fix width and height).
So:
overflow-wrap: break-word
: On an overflow situation, break the words.word-break: break-all
: On a normal situation, just break the words at the end of the line. An overflow is not necessary.I tried re-creating this, and .someclass.notip
was being generated for me but .someclass:not(.notip)
was not, for as long as I did not have the @mixin tip()
defined. Once I had that, it all worked.
http://sassmeister.com/gist/9775949
$dropdown-width: 100px;
$comp-tip: true;
@mixin tip($pos:right) {
}
@mixin dropdown-pos($pos:right) {
&:not(.notip) {
@if $comp-tip == true{
@if $pos == right {
top:$dropdown-width * -0.6;
background-color: #f00;
@include tip($pos:$pos);
}
}
}
&.notip {
@if $pos == right {
top: 0;
left:$dropdown-width * 0.8;
background-color: #00f;
}
}
}
.someclass { @include dropdown-pos(); }
EDIT: http://sassmeister.com/ is a good place to debug your SASS because it gives you error messages. Undefined mixin 'tip'.
it what I get when I remove @mixin tip($pos:right) { }
You can convert a java 8 stream to an array using this simple code block:
String[] myNewArray3 = myNewStream.toArray(String[]::new);
But let's explain things more, first, let's Create a list of string filled with three values:
String[] stringList = {"Bachiri","Taoufiq","Abderrahman"};
Create a stream from the given Array :
Stream<String> stringStream = Arrays.stream(stringList);
we can now perform some operations on this stream Ex:
Stream<String> myNewStream = stringStream.map(s -> s.toUpperCase());
and finally convert it to a java 8 Array using these methods:
1-Classic method (Functional interface)
IntFunction<String[]> intFunction = new IntFunction<String[]>() {
@Override
public String[] apply(int value) {
return new String[value];
}
};
String[] myNewArray = myNewStream.toArray(intFunction);
2 -Lambda expression
String[] myNewArray2 = myNewStream.toArray(value -> new String[value]);
3- Method reference
String[] myNewArray3 = myNewStream.toArray(String[]::new);
Method reference Explanation:
It's another way of writing a lambda expression that it's strictly equivalent to the other.
This regular expression handles floats as well
import re
re_float = re.compile(r'\d*\.?\d+')
You could also add a group to the expression that catches your weight units.
re_banana = re.compile(r'(?P<number>\d*\.?\d+)\s?(?P<uni>[a-zA-Z]+)')
You can access the named groups like this re_banana.match("200 kgm").group('number')
.
I think this should help you getting started.
For installing git
rpm -Uvh http://dl.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm
yum install git
Be careful with the "Range(...)" without first qualifying a Worksheet because it will use the currently Active worksheet to make the copy from. It's best to fully qualify both sheets. Please give this a shot (please change "Sheet1" with the copy worksheet):
EDIT: edited for pasting values only based on comments below.
Private Sub CommandButton1_Click()
Application.ScreenUpdating = False
Dim copySheet As Worksheet
Dim pasteSheet As Worksheet
Set copySheet = Worksheets("Sheet1")
Set pasteSheet = Worksheets("Sheet2")
copySheet.Range("A3:E3").Copy
pasteSheet.Cells(Rows.Count, 1).End(xlUp).Offset(1, 0).PasteSpecial xlPasteValues
Application.CutCopyMode = False
Application.ScreenUpdating = True
End Sub
This:
document.getElementById('myField').onblur();
works because your element (the <input>
) has an attribute called "onblur" whose value is a function. Thus, you can call it. You're not telling the browser to simulate the actual "blur" event, however; there's no event object created, for example.
Elements do not have a "blur" attribute (or "method" or whatever), so that's why the first thing doesn't work.
You can use:
<td onclick='javascript:someFunc(this);'></td>
With passing this you can access the DOM object via your function parameters.
'%f' % (x/y)
but you need to manage precision yourself. e.g.,
'%f' % (1/10**8)
will display zeros only.
details are in the docs
Or for Python 3 the equivalent old formatting or the newer style formatting
Simply put you can't do the following:
class C(object):
def x(self, y, **kwargs):
# Which y to use, kwargs or declaration?
pass
c = C()
y = "Arbitrary value"
kwargs["y"] = "Arbitrary value"
c.x(y, **kwargs) # FAILS
Because you pass the variable 'y' into the function twice: once as kwargs and once as function declaration.
Ok - my case was not strictly related to this question, but I ended up on this page when Googling for the same exception; I queried an SQL database with LINQ when I got this exception.
private Table<SubscriptionModel> m_subscriptionsSql;
var query = from SubscriptionModel subscription in m_subscriptionsSql ...
Turned out I forgot to initialize my Table instance variable, that I used in the LINQ query.
m_subscriptionsSql = GetTable<SubscriptionModel>();
While this is based on the sterling answers elsewhere on this page, I had a use case which wasn't completely solved by them; for a vector of pointers to functions do the following:
#include <iostream>
#include <vector>
#include <stdio.h>
#include <stdlib.h>
class A{
public:
typedef vector<int> (A::*AFunc)(int I1,int I2);
vector<AFunc> FuncList;
inline int Subtract(int I1,int I2){return I1-I2;};
inline int Add(int I1,int I2){return I1+I2;};
...
void Populate();
void ExecuteAll();
};
void A::Populate(){
FuncList.push_back(&A::Subtract);
FuncList.push_back(&A::Add);
...
}
void A::ExecuteAll(){
int In1=1,In2=2,Out=0;
for(size_t FuncId=0;FuncId<FuncList.size();FuncId++){
Out=(this->*FuncList[FuncId])(In1,In2);
printf("Function %ld output %d\n",FuncId,Out);
}
}
int main(){
A Demo;
Demo.Populate();
Demo.ExecuteAll();
return 0;
}
Something like this is useful if you are writing a command interpreter with indexed functions that need to be married up with parameter syntax and help tips etc. Possibly also useful in menus.
This is what worked for me:
Enter the command:
osql -S localhost\SQLEXPRESS -E
(or change localhost to whatever your PC is called).
At the prompt type the following commands:
CREATE LOGIN my_Login_here WITH PASSWORD = 'my_Password_here'
go
sp_addsrvrolemember 'my_Login_here', 'sysadmin'
go
quit
Stop the "SQL Server (SQLEXPRESS)" service.
Remove the "-m" from the Start parameters field (if still there).
Start the service.
In Management Studio, use the login and password you just created. This should give it admin permission.
Following is simple example that may help you:
json_string = """
{
"pk": 1,
"fa": "cc.ee",
"fb": {
"fc": "",
"fd_id": "12345"
}
}"""
import json
data = json.loads(json_string)
if data["fa"] == "cc.ee":
data["fb"]["new_key"] = "cc.ee was present!"
print json.dumps(data)
The output for the above code will be:
{"pk": 1, "fb": {"new_key": "cc.ee was present!", "fd_id": "12345",
"fc": ""}, "fa": "cc.ee"}
Note that you can set the ident argument of dump to print it like so (for example,when using print json.dumps(data , indent=4)):
{
"pk": 1,
"fb": {
"new_key": "cc.ee was present!",
"fd_id": "12345",
"fc": ""
},
"fa": "cc.ee"
}
Seems to be fixed in SupportLibrary 25.1.0 :) Edit: It seems to be fixed, that the state of the selection is saved, when rotating the screen.
If you are using large table and want to access of 10 percent of the data then run this following command: SELECT TOP 10 PERCENT * FROM Table1 ORDER BY NEWID();
Alternatively, you can resize the array.
Array.Resize(ref array, array.Length + 1);
array[array.Length - 1] = "new string";
I had issue alike (click on button, but after cancel clicked it still removes my object), so made this in such way, hope it helps someone in the future:
$('.deleteObject').click(function () {
var url = this.href;
var confirmText = "Are you sure you want to delete this object?";
if(confirm(confirmText)) {
$.ajax({
type:"POST",
url:url,
success:function () {
// Here goes something...
},
});
}
return false;
});
I got this one in my project.
div > .b ~ .b:not(:first-child) {_x000D_
background: none;_x000D_
}_x000D_
div > .b {_x000D_
background: red;_x000D_
}
_x000D_
<div>_x000D_
<p class="a">The first paragraph.</p>_x000D_
<p class="a">The second paragraph.</p>_x000D_
<p class="b">The third paragraph.</p>_x000D_
<p class="b">The fourth paragraph.</p>_x000D_
</div>
_x000D_
Add this line before any output of the body, in the event you aren't using output buffering.
header("HTTP/1.1 200 OK");
Replace the message portion ('OK') with the appropriate message, and the status code with your code as appropriate (404, 501, etc)
You could create an image of whatever height you wish, and then position that with the CSS background(-position) property like:
#somid { background: url(path/to/img.png) no-repeat center top;
Instead of center top
you can also use pixel or % like 50% 100px
.
http://www.w3.org/TR/CSS2/colors.html#propdef-background-position
Use \overleftarrow
to create a long arrow to the left.
\overleftarrow{blahblahblah}
You need to do something like this:
// instantiate XmlDocument and load XML from file
XmlDocument doc = new XmlDocument();
doc.Load(@"D:\test.xml");
// get a list of nodes - in this case, I'm selecting all <AID> nodes under
// the <GroupAIDs> node - change to suit your needs
XmlNodeList aNodes = doc.SelectNodes("/Equipment/DataCollections/GroupAIDs/AID");
// loop through all AID nodes
foreach (XmlNode aNode in aNodes)
{
// grab the "id" attribute
XmlAttribute idAttribute = aNode.Attributes["id"];
// check if that attribute even exists...
if (idAttribute != null)
{
// if yes - read its current value
string currentValue = idAttribute.Value;
// here, you can now decide what to do - for demo purposes,
// I just set the ID value to a fixed value if it was empty before
if (string.IsNullOrEmpty(currentValue))
{
idAttribute.Value = "515";
}
}
}
// save the XmlDocument back to disk
doc.Save(@"D:\test2.xml");
You are missing a semicolon at the end of your 'struct' definition.
Also,
*sotrudnik
needs to be
sotrudnik*
If you have server side rendering, you should be careful not to run the code using windows
on the server, where that variable doesn't exist. It would result in code breaking.
export class AppComponent implements OnInit {
routerSubscription: Subscription;
constructor(private router: Router,
@Inject(PLATFORM_ID) private platformId: any) {}
ngOnInit() {
if (isPlatformBrowser(this.platformId)) {
this.routerSubscription = this.router.events
.filter(event => event instanceof NavigationEnd)
.subscribe(event => {
window.scrollTo(0, 0);
});
}
}
ngOnDestroy() {
this.routerSubscription.unsubscribe();
}
}
isPlatformBrowser
is a function used to check if the current platform where the app is rendered is a browser or not. We give it the injected platformId
.
It it also possible to check for existence of variable windows
, to be safe, like this:
if (typeof window != 'undefined')
I got this problem while launching a VS2013 32-bit console application in powershell, launching it in cmd did not issue this problem.
If you don't want to include any extra CSS you can just use the button color classes into the nav-link element, it will format the pill just the same as a regular button.
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">_x000D_
_x000D_
<script src="https://code.jquery.com/jquery-3.4.1.min.js" integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>_x000D_
_x000D_
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>_x000D_
_x000D_
<ul class="nav nav-pills p-3">_x000D_
<li class="nav-item">_x000D_
<a class="nav-link active" href="#">Normal</a>_x000D_
</li>_x000D_
<li class="nav-item">_x000D_
<a class="nav-link active btn-primary" href="#">Primary</a>_x000D_
</li>_x000D_
<li class="nav-item">_x000D_
<a class="nav-link active btn-secondary" href="#">Secondary</a>_x000D_
</li>_x000D_
<li class="nav-item">_x000D_
<a class="nav-link active btn-success" href="#">Success</a>_x000D_
</li>_x000D_
<li class="nav-item">_x000D_
<a class="nav-link active btn-warning" href="#">Warning</a>_x000D_
</li>_x000D_
<li class="nav-item">_x000D_
<a class="nav-link active btn-danger" href="#">Danger</a>_x000D_
</li>_x000D_
_x000D_
</ul>
_x000D_
Some of you were close but changing designer code like that is annoying because you always have to go back and change it again.
The original OP was likely using an older version of .net because version 4 autosizes the textbox height to fit the font, but does not size comboboxes and textboxes the same which is a completely different problem but drew me here.
This is the problem I faced when placing textboxes next to comboboxes on a form. This is a bit irritating because who wants two controls side-by-side with different heights? Or different fonts to force heights? Step it up Microsoft, this should be simple!
I'm using .net framework 4 in VS2012 and the following was the simplest solution for me.
In the form load event (or anywhere as long as fired after InitializeComponent
): textbox.AutoSize = false
Then set the height to whatever you want. For me I wanted my text boxes and combo boxes to be the same height so textbox.height = combobox.height
did the trick for me.
Notes:
1) The designer will not be affected so it will require you to start your project to see the end result, so there may be some trial and error.
2) Align the tops of your comboboxes and textboxes if you want them to be aligned properly after the resize because the textboxes will grow down.
//objects
var array = [{id:'12', name:'Smith', value:1},{id:'13', name:'Jones', value:2}];
array.sort(function(a, b){
var a1= a.name.toLower(), b1= b.name.toLower();
if(a1== b1) return 0;
return a1> b1? 1: -1;
});
//arrays
var array =[ ['12', ,'Smith',1],['13', 'Jones',2]];
array.sort(function(a, b){
var a1= a[1], b1= b[1];
if(a1== b1) return 0;
return a1> b1? 1: -1;
});
You can do this without a module:
characters = list(map(chr, range(97,123)))
Type characters
and it should print ["a","b","c", ... ,"x","y","z"]
. For uppercase use:
characters=list(map(chr,range(65,91)))
Any range (including the use of range steps) can be used for this, because it makes use of Unicode. Therefore, increase the range()
to add more characters to the list.
map()
calls chr()
every iteration of the range()
.
80 % of the times, this would due to wrong input by in soapRequest.xml file
The official solution (and others) were incomplete when I first visited, so I came back, years later, to post this alternate approach in case any others wound up here intending to use a public/private key-pair:
Execute this from the target backup machine, which pulls from source to target backup
rsync -av --delete -e 'ssh -p 59333 -i /home/user/.ssh/id_rsa' [email protected]:/home/user/Server/ /home/keith/Server/
Execute this from the source machine, which sends from source to target backup
rsync -av --delete -e 'ssh -p 59333 -i /home/user/.ssh/id_rsa' /home/user/Server/ [email protected]:/home/user/Server/
And, if you are not using an alternate port for ssh, then consider the more elegant examples below:
Execute this from the target backup machine, which pulls from source to target backup:
sudo rsync -avi --delete [email protected]:/var/www/ /media/sdb1/backups/www/
Execute this from the source machine, which sends from source to target backup:
sudo rsync -avi --delete /media/sdb1/backups/www/ [email protected]:/var/www/
If you are still getting prompted for a password, then you need to check your ssh configuration in /etc/ssh/sshd_config
and verify that the users in source and target each have the others' respective public ssh key by sending each over with ssh-copy-id [email protected]
.
(Again, this is for using ssh key-pairs without a password, as an alternate approach, and not for passing the password over via a file.)
Looking at your example, I think this is what you want:
var dict = TableObj.ToDictionary(t => t.Key, t=> t.TimeStamp);
from the command line (cmd.exe, not from within mysql shell) try something like:
type c:/nite.sql | mysql -uuser -ppassword dbname
Sometimes it's necessary to print out server's response for debugging purposes. Here's a function I use:
extension Dictionary {
var json: String {
let invalidJson = "Not a valid JSON"
do {
let jsonData = try JSONSerialization.data(withJSONObject: self, options: .prettyPrinted)
return String(bytes: jsonData, encoding: String.Encoding.utf8) ?? invalidJson
} catch {
return invalidJson
}
}
func printJson() {
print(json)
}
}
Example of use:
(lldb) po dictionary.printJson()
{
"InviteId" : 2,
"EventId" : 13591,
"Messages" : [
{
"SenderUserId" : 9514,
"MessageText" : "test",
"RecipientUserId" : 9470
},
{
"SenderUserId" : 9514,
"MessageText" : "test",
"RecipientUserId" : 9470
}
],
"TargetUserId" : 9470,
"InvitedUsers" : [
9470
],
"InvitingUserId" : 9514,
"WillGo" : true,
"DateCreated" : "2016-08-24 14:01:08 +00:00"
}
You can usually just re-evaluate the changed region. Mark the region of ~/.emacs that you've changed, and then use M-x eval-region RET
. This is often safer than re-evaluating the entire file since it's easy to write a .emacs file that doesn't work quite right after being loaded twice.
Your Best Approach is to install Wireshark, reboot the device wait for the TCP/UDP stream , broadcasts will announce the IP address for both Ethernet ports This is especially useful when the device connected does not have DHCP Client enabled, then you can go from there.
Problem with file_get_contents for the requests https in Windows, uncomment the following lines in the php.ini file:
extension=php_openssl.dll
extension_dir = "ext"
You can use the 'link' function, also known as postLink, which runs after the template is put in.
app.directive('myDirective', function() {
return {
link: function(scope, elm, attrs) { /*I run after template is put in */ },
template: '<b>Hello</b>'
}
});
Give this a read if you plan on making directives, it's a big help: http://docs.angularjs.org/guide/directive
just want to add another variant to update this wonderful "how to" list. Though, It may be really useful in more complicated cases:
try {
if (something)
{
//some code
if (something2)
{
throw new Exception("Weird-01.");
// now You will go to the catch statement
}
if (something3)
{
throw new Exception("Weird-02.");
// now You will go to the catch statement
}
//some code
return;
}
}
catch (Exception ex)
{
Console.WriteLine(ex); // you will get your Weird-01 or Weird-02 here
}
// The code i want to go if the second or third if is true
NSLocalizedString()
reads the value for the key AppleLanguages
from the standard user defaults ([NSUserDefaults standardUserDefaults]
). It uses that value to choose an appropriate localization among all existing localizations at runtime. When Apple builds the user defaults dictionary at app launch, they look up the preferred language(s) key in the system preferences and copy the value from there. This also explains for example why changing the language settings in OS X has no effect on running apps, only on apps started thereafter. Once copied, the value is not updated just because the settings change. That's why iOS restarts all apps if you change then language.
However, all values of the user defaults dictionary can be overwritten by command line arguments. See NSUserDefaults
documentation on the NSArgumentDomain
. This even includes those values that are loaded from the app preferences (.plist) file. This is really good to know if you want to change a value just once for testing.
So if you want to change the language just for testing, you probably don't want to alter your code (if you forget to remove this code later on ...), instead tell Xcode to start your app with a command line parameters (e.g. use Spanish localization):
No need to touch your code at all. Just create different schemes for different languages and you can quickly start the app once in one language and once in another one by just switching the scheme.
In my mac os python3 you can use: control+p early command contrlo+n next command
Skype was the main cause of my problem:
This error usually occurs when you have set up Visual Studio to debug an existing web application running in IIS rather than the built in ASP.NET debug web server. IIS by default listens for web requests on port 80. In this case, another application is already listening for requests on port 80. Typically, the offending application is Skype, which by default takes over listening on ports 80 and 443 when installed. Skype is already occupy the port 80. So IIS is unable to start.
To resolve the issue follow the steps:
Skype -> Tools -> Options -> Advanced -> Connection:
Uncheck "Use port 80 and 443 as alternatives for incoming connections".
And as pointed out below perform an IIS reset once done.
open C:\myfile.txt for append as #1
write #1, text1.text, text2.text
close()
This is the code I use in Visual Basic 6.0. It helps me to create a txt file on my drive, write two pieces of data into it, and then close the file... Give it a try...
Just a word of caution. If you are trying to open an existing JKS keystore in Java 9 onwards, you need to make sure you mention the following properties too with value as "JKS":
javax.net.ssl.keyStoreType
javax.net.ssl.trustStoreType
The reason being that the default keystore type as prescribed in java.security file has been changed to pkcs12 from jks from Java 9 onwards.
You can fake it like this:
-- with column headings
select column1, column2 from some_table;
-- without column headings
select column1 as '', column2 as '' from some_table;
I would use pandas
. The computationally heavy parts are written in cython or c-extensions to speed up the process and the syntax is very clean. For example, if you want to turn "Sheet1" from the file "your_workbook.xls" into the file "your_csv.csv", you just use the top-level function read_excel
and the method to_csv
from the DataFrame
class as follows:
import pandas as pd
data_xls = pd.read_excel('your_workbook.xls', 'Sheet1', index_col=None)
data_xls.to_csv('your_csv.csv', encoding='utf-8')
Setting encoding='utf-8'
alleviates the UnicodeEncodeError
mentioned in other answers.
First, I think you're calling it the wrong thing. "JSON" stands for "JavaScript Object Notation" - it's just a specification for representing some data in a string that explicitly mimics JavaScript object (and array, string, number and boolean) literals. You're trying to build up a JavaScript object dynamically - so the word you're looking for is "object".
With that pedantry out of the way, I think that you're asking how to set object and array properties.
// make an empty object
var myObject = {};
// set the "list1" property to an array of strings
myObject.list1 = ['1', '2'];
// you can also access properties by string
myObject['list2'] = [];
// accessing arrays is the same, but the keys are numbers
myObject.list2[0] = 'a';
myObject['list2'][1] = 'b';
myObject.list3 = [];
// instead of placing properties at specific indices, you
// can push them on to the end
myObject.list3.push({});
// or unshift them on to the beginning
myObject.list3.unshift({});
myObject.list3[0]['key1'] = 'value1';
myObject.list3[1]['key2'] = 'value2';
myObject.not_a_list = '11';
That code will build up the object that you specified in your question (except that I call it myObject instead of myJSON). For more information on accessing properties, I recommend the Mozilla JavaScript Guide and the book JavaScript: The Good Parts.
Connect your javascript clientside controller and php serverside controller using sending and receiving opcodes with binded data. So your php code can send as response functional delta for js recepient/listener
see https://github.com/ArtNazarov/LazyJs
Sorry for my bad English
You are overwriting your object file runexp.o
by running this command :
gcc -o runexp.o scd.o data_proc.o -lm -fopenmp
In fact, the -o
is for the output file.
You need to run :
gcc -o runexp.out runexp.o scd.o data_proc.o -lm -fopenmp
runexp.out will be you binary file.
Whenever changes are made in dockerfile or compose or requirements , re-Run it using docker-compose up --build
. So that images get rebuild and refreshed
You can convert to an array and call array soring methods on it:
[...map].sort(/* etc */);
You have a class on your CSS that is overwriting your width and height, the class reads as such:
.postItem img {
height: auto;
width: 450px;
}
Remove that and your width/height properties on the img
tag should work.
The answer given above can't solve my problem.So I change async into false to get the alert message.
jQuery.ajax({
type:"post",
dataType:"json",
async: false,
url: myAjax.ajaxurl,
data: {action: 'submit_data', info: info},
success: function(data) {
alert("Data was succesfully captured");
},
});
rand() / double(RAND_MAX)
generates a floating-point random number between 0 (inclusive) and 1 (inclusive), but it's not a good way for the following reasons (because RAND_MAX is usually 32767):
Due to the above limitations of rand(), a better choice for generation of random numbers between 0 (inclusive) and 1 (exclusive) would be the following snippet (similar to the example at http://en.cppreference.com/w/cpp/numeric/random/uniform_real_distribution ):
#include <iostream>
#include <random>
#include <chrono>
int main()
{
std::mt19937_64 rng;
// initialize the random number generator with time-dependent seed
uint64_t timeSeed = std::chrono::high_resolution_clock::now().time_since_epoch().count();
std::seed_seq ss{uint32_t(timeSeed & 0xffffffff), uint32_t(timeSeed>>32)};
rng.seed(ss);
// initialize a uniform distribution between 0 and 1
std::uniform_real_distribution<double> unif(0, 1);
// ready to generate random numbers
const int nSimulations = 10;
for (int i = 0; i < nSimulations; i++)
{
double currentRandomNumber = unif(rng);
std::cout << currentRandomNumber << std::endl;
}
return 0;
}
This is easy to modify to generate random numbers between 1 (inclusive) and 2 (exclusive) by replacing unif(0, 1)
with unif(1, 2)
.
For those looking for a dynamic solution to embed Matplotlib in PyQt5 (even plot data using drag and drop). In PyQt5 you need to use super on the main window class to accept the drops. The dropevent function can be used to get the filename and rest is simple:
def dropEvent(self,e):
"""
This function will enable the drop file directly on to the
main window. The file location will be stored in the self.filename
"""
if e.mimeData().hasUrls:
e.setDropAction(QtCore.Qt.CopyAction)
e.accept()
for url in e.mimeData().urls():
if op_sys == 'Darwin':
fname = str(NSURL.URLWithString_(str(url.toString())).filePathURL().path())
else:
fname = str(url.toLocalFile())
self.filename = fname
print("GOT ADDRESS:",self.filename)
self.readData()
else:
e.ignore() # just like above functions
For starters the reference complete code gives this output:
You may find this to be more common on CIFS/SMB network shares. Windows doesn't allow for a file to be written when something else has that file open, and even if the service is not Windows (it might be some other NAS product), it will likely reproduce the same behaviour. Potentially, it might also be a manifestation of some underlying NAS issue vaguely related to locking/replication.
Here are some options to convert the .csv files into one data.frame using R base and some of the available packages for reading files in R.
This is slower than the options below.
# Get the files names
files = list.files(pattern="*.csv")
# First apply read.csv, then rbind
myfiles = do.call(rbind, lapply(files, function(x) read.csv(x, stringsAsFactors = FALSE)))
Edit: - A few more extra choices using data.table
and readr
A fread()
version, which is a function of the data.table
package. This is by far the fastest option in R.
library(data.table)
DT = do.call(rbind, lapply(files, fread))
# The same using `rbindlist`
DT = rbindlist(lapply(files, fread))
Using readr, which is another package for reading csv files. It's slower than fread
, faster than base R but has different functionalities.
library(readr)
library(dplyr)
tbl = lapply(files, read_csv) %>% bind_rows()
I realise this is an old post, but in case it helps, you can apply this CSS to have IE11 draw a dotted outline for the focus indication of a <select>
element so that it resembles Firefox's focus indication:
select:focus::-ms-value {
background: transparent;
color: inherit;
outline-style: dotted;
outline-width: thin;
}
Whenever one writes [A-Z]
or [a-z]
, one explicitly commits to
processing nothing but 7-bit ASCII data from the 1960s. If that’s
really ok, then fine. But if it’s not ok, then Unicode character
properties exist to help you with handling modern character data.
There are three cases in Unicode, not two. Furthermore, you also have
noncased letters. Letters in general are specified by the \pL
property,
and each of these also belongs to exactly one of five subcategories:
\p{Lu}
; eg: AÇ?ÞSSS??ST\p{Lt}
; eg: ??Ss?St
(actually Ss
and St
are an upper- and then a lowercase letter,
but they are what you get if you ask for the titlecase of ß and
?, respectively)\p{Ll}
; eg: aaç??sþß??\p{Lm}
; eg: ????"'???\p{Lo}
; eg: ?????You can take the complement of any of these, but do be careful, because
something like \P{Lu}
does not mean a letter that isn’t uppercase!
It means any character that isn’t an uppercase letter.
For a letter that’s either of uppercase or titlecase, use
[\p{Lu}\p{Lt}]
. So you could use for your pattern:
^([\p{Lu}\p{Lt}]\p{Ll}+)+$
If you don’t mean to limit the letters following the first to the “casing” letters alone, then you might prefer:
^([\p{Lu}\p{Lt}][\p{Ll}\p{Lm}\p{Lo}]+)+$
If you’re trying to match so-called “CamelCase” identifiers, then
the actual rules depend on the programming language, but usually include
the underscore character and the decimal numbers (\p{Nd}
), and may also
include a literal dollar sign and other language-dependent characters.
If so, you may wish to add some of these to one or the other of the two
character classes provided above.
For example, you may wish to add underscore to both but digits only to the second, leaving you with:
^([_\p{Lu}\p{Lt}][_\p{Nd}\p{Ll}\p{Lm}\p{Lo}]+)+$
If, though, you are dealing with certain “words” from various RFCs and ISO
standards, these are often specified as containing ASCII only. If so,
you can get by with the literal [A-Z]
idea. It’s just not kind to
impose that restriction if it doesn’t actually exist.
Yes there is:
ARRAY=()
ARRAY+=('foo')
ARRAY+=('bar')
In the context where an assignment statement is assigning a value to a shell variable or array index (see Arrays), the ‘+=’ operator can be used to append to or add to the variable's previous value.
I think that you are looking for something like this:
function rightclick() {
var rightclick;
var e = window.event;
if (e.which) rightclick = (e.which == 3);
else if (e.button) rightclick = (e.button == 2);
alert(rightclick); // true or false, you can trap right click here by if comparison
}
(http://www.quirksmode.org/js/events_properties.html)
And then use the onmousedown even with the function rightclick() (if you want to use it globally on whole page you can do this <body onmousedown=rightclick(); >
Original answer:
I too tried to change the support library to "23". When I changed the targetSdkVersion
to 23, Android Studio reported the following error:
This support library should not use a lower version (22) than the
targetSdkVersion
(23)
I simply changed:
compile 'com.android.support:appcompat-v7:23.0.0'
to
compile 'com.android.support:appcompat-v7:+'
Although this fixed my issue, you should not use dynamic versions. After a few hours the new support repository was available and it is currently 23.0.1
.
Pro tip:
You can use double quotes and create a ${supportLibVersion}
variable for simplicity. Example:
ext {
supportLibVersion = '23.1.1'
}
compile "com.android.support:appcompat-v7:${supportLibVersion}"
compile "com.android.support:design:${supportLibVersion}"
compile "com.android.support:palette-v7:${supportLibVersion}"
compile "com.android.support:customtabs:${supportLibVersion}"
compile "com.android.support:gridlayout-v7:${supportLibVersion}"
source: https://twitter.com/manidesto/status/669195097947377664
This works. Try it.
<BODY ondragstart="return false;" ondrop="return false;">
I use listCollections
(supports MongoDB 3.0 and up) for this purpose.
Example:
db.runCommand({ listCollections: 1, filter: {}, nameOnly: true });
To fetch more information like the index of the collection:
db.runCommand({ listCollections: 1, filter: {}, nameOnly: false });
To print just the collection names:
db.runCommand({ listCollections: 1, filter: {}, nameOnly: true }).cursor.firstBatch.forEach(v => {print(v.name)})
I feel this provides more flexibility.
Read more: listCollections
You can also do like this :
$("#table-filters li").parent().find('li').removeClass("active");
Adding allowfullscreen="allowfullscreen"
and altering the type of YouTube embed fixed my issue.
You'll want to do get a Calendar instance and get it's day of month
Calendar cal = Calendar.getInstance();
int dayOfMonth = cal.get(Calendar.DAY_OF_MONTH);
String dayOfMonthStr = String.valueOf(dayOfMonth);
You can also get DAY_OF_WEEK, DAY_OF_YEAR, DAY_OF_WEEK_IN_MONTH, etc.
You've already got it: A if test else B
is a valid Python expression. The only problem with your dict comprehension as shown is that the place for an expression in a dict comprehension must have two expressions, separated by a colon:
{ (some_key if condition else default_key):(something_if_true if condition
else something_if_false) for key, value in dict_.items() }
The final if
clause acts as a filter, which is different from having the conditional expression.
After all the Jquery script tag's add
<script>jQuery.noConflict();</script>
to avoid the conflict between Prototype and Jquery.
If table cols and values are variables then there are two ways:
With double quotes ""
the complete query:
$query = "INSERT INTO $table_name (id, $col1, $col2)
VALUES (NULL, '$val1', '$val2')";
Or
$query = "INSERT INTO ".$table_name." (id, ".$col1.", ".$col2.")
VALUES (NULL, '".$val1."', '".$val2."')";
With single quotes ''
:
$query = 'INSERT INTO '.$table_name.' (id, '.$col1.', '.$col2.')
VALUES (NULL, '.$val1.', '.$val2.')';
Use back ticks ``
when a column/value name is similar to a MySQL reserved keyword.
Note: If you are denoting a column name with a table name then use back ticks like this:
`table_name`
. `column_name`
<-- Note: exclude .
from back ticks.
The answer is yes, there is.
First you can easily install numpy use commands:
pip install numpy
Then you should install mkl, which is required by Scipy, and you can download it here
After download the file_name.whl you install it
C:\Users\****\Desktop\a> pip install mkl_service-1.1.2-cp35-cp35m-win32.whl
Processing c:\users\****\desktop\a\mkl_service-1.1.2-cp35-cp35m-win32.whl
Installing collected packages: mkl-service
Successfully installed mkl-service-1.1.2
Then at the same website you can download scipy-0.18.1-cp35-cp35m-win32.whl
Note:You should download the file_name.whl according to you python version, if you python version is 32bit python3.5 you should download this one, and the "win32" is about your python version, not your operating system version.
Then install file_name.whl like this:
C:\Users\****\Desktop\a>pip install scipy-0.18.1-cp35-cp35m-win32.whl
Processing c:\users\****\desktop\a\scipy-0.18.1-cp35-cp35m-win32.whl
Installing collected packages: scipy
Successfully installed scipy-0.18.1
Then there is only one more thing to do: comment out a specfic line or there will be error messages when you imput command "import scipy".
So comment out this line
from numpy._distributor_init import NUMPY_MKL # requires numpy+mkl
in this file: your_own_path\lib\site-packages\scipy__init__.py
Then you can use SciPy :)
Here tells you more about the last step.
Here is a similar anwser to a similar question.
Incorrect usage.
Input type number it's made to have selectable value via arrows up and down.
So basically you are looking for "width" CSS style.
Input text historically is formatted with monospaced font, so size it's also the width it takes.
Input number it's new and "size" property has no sense at all*. A typical usage:
<input type="number" name="quantity" min="1" max="5">
to fix, add a style:
<input type="number" name="email" style="width: 7em">
EDIT: if you want a range, you have to set type="range"
and not ="number"
EDIT2: *size is not an allowed value (so, no sense). Check out official W3C specifications
Note: The size attribute works with the following input types: text, search, tel, url, email, and password.
Tip: To specify the maximum number of characters allowed in the element, use the maxlength attribute.
Since the id
is sufficient for detecting duplicates, and the id
is hashable: run 'em through a dictionary that has the id
as the key. The value for each key is the original dictionary.
deduped_dicts = dict((item["id"], item) for item in list_of_dicts).values()
In Python 3, values()
doesn't return a list; you'll need to wrap the whole right-hand-side of that expression in list()
, and you can write the meat of the expression more economically as a dict comprehension:
deduped_dicts = list({item["id"]: item for item in list_of_dicts}.values())
Note that the result likely will not be in the same order as the original. If that's a requirement, you could use a Collections.OrderedDict
instead of a dict
.
As an aside, it may make a good deal of sense to just keep the data in a dictionary that uses the id
as key to begin with.
Every programming language has its own way of structuring the code.
whenever you write a block of code, it has to be organised in a way to be understood by everyone.
Usually used in conditional and classes and defining the definition.
It represents the parent, child and grandchild and further.
Example:
def example()
print "name"
print "my name"
example()
Here you can say example()
is a parent and others are children.
Dim obj : Set obj = CreateObject("Scripting.FileSystemObject")
Dim outFile : Set outFile = obj.CreateTextFile("in.txt")
Dim inFile: Set inFile = obj.OpenTextFile("out.txt")
' Read file
Dim strRetVal : strRetVal = inFile.ReadAll
inFile.Close
' Write file
outFile.write (strRetVal)
outFile.Close
For a <br>
on each line, use
<textarea wrap="physical"></textarea>
You will get \n
s in the value of the textarea. Then, use the nl2br()
function to create <br>
s, or you can explode() it for <br>
or \n
.
Hope this helps
It's a weird design, but the TableLayoutPanel.RowCount
property doesn't reflect the count of the RowStyles
collection, and similarly for the ColumnCount
property and the ColumnStyles
collection.
What I've found I needed in my code was to manually update RowCount
/ColumnCount
after making changes to RowStyles
/ColumnStyles
.
Here's an example of code I've used:
/// <summary>
/// Add a new row to our grid.
/// </summary>
/// The row should autosize to match whatever is placed within.
/// <returns>Index of new row.</returns>
public int AddAutoSizeRow()
{
Panel.RowStyles.Add(new RowStyle(SizeType.AutoSize));
Panel.RowCount = Panel.RowStyles.Count;
mCurrentRow = Panel.RowCount - 1;
return mCurrentRow;
}
Other thoughts
I've never used DockStyle.Fill
to make a control fill a cell in the Grid; I've done this by setting the Anchors
property of the control.
If you're adding a lot of controls, make sure you call SuspendLayout
and ResumeLayout
around the process, else things will run slow as the entire form is relaid after each control is added.
On Windows, you can try to set the path at the command prompt:
set PATH=%PATH%;C:\Program Files\Git\bin;
Follow up to Eonil's answer related to project level settings. With the target selected and the Build Settings tab selected, there may be no listing under Search Paths for Header Search Paths. In this case, you can change to "All" from "Basic" in the search bar and Header Search Paths will show up in the Search Paths section.
armhf
stands for "arm hard float", and is the name given to a debian port for arm processors (armv7+) that have hardware floating point support.
On the beaglebone black, for example:
:~$ dpkg --print-architecture
armhf
Although other commands (such as uname -a
or arch
) will just show armv7l
:~$ cat /proc/cpuinfo
processor : 0
model name : ARMv7 Processor rev 2 (v7l)
BogoMIPS : 995.32
Features : half thumb fastmult vfp edsp thumbee neon vfpv3 tls
...
The vfpv3
listed under Features
is what refers to the floating point support.
Incidentally, armhf
, if your processor supports it, basically supersedes Raspbian, which if I understand correctly was mainly a rebuild of armhf
with work arounds to deal with the lack of floating point support on the original raspberry pi's. Nowdays, of course, there's a whole ecosystem build up around Raspbian, so they're probably not going to abandon it. However, this is partly why the beaglebone runs straight debian, and that's ok even if you're used to Raspbian, unless you want some of the special included non-free software such as Mathematica.
from inside vim, use one of the following
open a new window below the current one:
:new filename.ext
open a new window beside the current one:
:vert new filename.ext
Obviously, of the two methods you mention number 1 is more efficient, since it only needs to go through the list once, while with method number 2 the list has to be traversed two times (first to find the elements to remove, and them to remove them).
Actually, removing a list of elements from another list is likely an algorithm that's worse than O(n) so method 2 is even worse.
The iterator method:
List data = ...;
for (Iterator i = data.iterator(); i.hasNext(); ) {
Object element = i.next();
if (!(...)) {
i.remove();
}
}
Note that neither DBCC DROPCLEANBUFFERS;
nor DBCC FREEPROCCACHE;
is supported in SQL Azure / SQL Data Warehouse.
However, if you need to reset the plan cache in SQL Azure, you can alter one of the tables in the query (for instance, just add then remove a column), this will have the side-effect of removing the plan from the cache.
I personally do this as a way of testing query performance without having to deal with cached plans.
You can use strtol
for that:
long x;
if (argc < 2)
/* handle error */
x = strtol(argv[1], NULL, 10);
Alternatively, if you're using C99 or better you could explore strtoimax
.
.apply()
takes in a function as the first parameter; pass in the label_race
function as so:
df['race_label'] = df.apply(label_race, axis=1)
You don't need to make a lambda function to pass in a function.