You have to always follow the MVC concept when creating apps for iOS.
There are two scenarios where you may want to pass data from a ViewController to another:
When there is an "A" ViewContoller in the hierarchy and you want to send some data to "B" which is the next viewcontroller. In this case you have to use Segue. Just set an identifier for the segue and then in the "A" VC, write the following code:
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "A to B segue identifier" {
let bViewController = segue.destination as! UIDocumentBrowserViewController
bViewController.data = someData
}
}
When there is an A
which opened B
upon itself as modal (or embed). Now the B
viewcontroller should be blind about its parent. So the best way to send data back to A
is to use Delegation
.
Create a delegate protocol in the B
viewcontroller and a delegate
property. So B
will report (send data back) to it's delegate. In the A
viewcontroller, we implement the B
viewcontroller's delegate protocol and will set self
as the delegate
property of B
viewcontroller in prepare(forSegue:)
method.
This is how it should be implemented correctly.
The brief points:
If the request header had already been set, then the new value MUST be concatenated to the existing value using a U+002C COMMA followed by a U+0020 SPACE for separation.
UAs MAY give the User-Agent header an initial value, but MUST allow authors to append values to it.
However - After searching through the framework XHR in jQuery they don't allow you to change the User-Agent or Referer headers. The closest thing:
// Set header so the called script knows that it's an XMLHttpRequest
xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
I'm leaning towards the opinion that what you want to do is being denied by a security policy in FF - if you want to pass some custom Referer
type header you could always do:
xhr.setRequestHeader('X-Alt-Referer', 'http://www.google.com');
First delete the constraint "fk_comments_projects1" and also its index. After that recreate it.
You may use Json.Net framework to do this. Just like this :
Account account = JsonConvert.DeserializeObject<Account>(json);
the home page : http://json.codeplex.com/
the document about this : http://james.newtonking.com/json/help/index.html#
Here's my take on this problem.
I have defined a function 'index' which takes the number and the input index and outputs the digit at the desired index.
The enumerate method operates on the strings, therefore the number is first converted to a string. Since the indexing in Python starts from zero, but the desired functionality requires it to start with 1, therefore a 1 is placed in the enumerate function to indicate the start of the counter.
def index(number, i):
for p,num in enumerate(str(number),1):
if p == i:
print(num)
If all the columns requested in the select
list of query, are available in the index, then the query engine doesn't have to lookup the table again which can significantly increase the performance of the query. Since all the requested columns are available with in the index, the index is covering the query. So, the query is called a covering query and the index is a covering index.
A clustered index can always cover a query, if the columns in the select list are from the same table.
The following links can be helpful, if you are new to index concepts:
the easiest way is to just use ls
ls *.mp4 *.mp3 *.exe
You could also try this to make your query... shown here with INSERT
<?php
$week=array('one'=>'monday','two'=>'tuesday','three'=>'wednesday','four'=>'thursday','five'=>'friday','six'=>'saturday','seven'=>'sunday');
$keys = array_keys($week);
$string = "INSERT INTO my_table ('";
$string .= implode("','", $keys);
$string .= "') VALUES ('";
$string .= implode("','", $week);
$string .= "');";
echo $string;
?>
Since you're using JPA, use the Lob
annotation (and optionally the Column
annotation). Here is what the JPA specification says about it:
9.1.19 Lob Annotation
A
Lob
annotation specifies that a persistent property or field should be persisted as a large object to a database-supported large object type. Portable applications should use theLob
annotation when mapping to a database Lob type. The Lob annotation may be used in conjunction with theBasic
annotation. A Lob may be either a binary or character type. The Lob type is inferred from the type of the persistent field or property, and except for string and character-based types defaults to Blob.
So declare something like this:
@Lob
@Column(name="CONTENT", length=512)
private String content;
You can also use following lines of code to get first and last date of the week:
var curr = new Date;
var firstday = new Date(curr.setDate(curr.getDate() - curr.getDay()));
var lastday = new Date(curr.setDate(curr.getDate() - curr.getDay()+6));
Hope it will be useful..
Try:
git remote prune origin
From the Git remote documentation:
prune
Deletes all stale remote-tracking branches under <name>. These stale branches have already been removed from the remote repository referenced by <name>, but are still locally available in "remotes/<name>".
With --dry-run option, report what branches will be pruned, but do not actually prune them.
Remove the \bin
, and also remove the ;
at the end. After restart the cmd and run.
public static boolean isNull(String str) {
return str == null ? true : false;
}
public static boolean isNullOrBlank(String param) {
if (isNull(param) || param.trim().length() == 0) {
return true;
}
return false;
}
Have the element display as a block:
display: block;
Decode it with the unicode-escape
codec:
>>> a="Hello\u2026"
>>> a.decode('unicode-escape')
u'Hello\u2026'
>>> print _
Hello…
This is because for a non-unicode string the \u2026
is not recognised but is instead treated as a literal series of characters (to put it more clearly, 'Hello\\u2026'
). You need to decode the escapes, and the unicode-escape
codec can do that for you.
Note that you can get unicode
to recognise it in the same way by specifying the codec argument:
>>> unicode(a, 'unicode-escape')
u'Hello\u2026'
But the a.decode()
way is nicer.
If you just deserialize to dynamic you will get a JObject back. You can get what you want by using an ExpandoObject.
var converter = new ExpandoObjectConverter();
dynamic message = JsonConvert.DeserializeObject<ExpandoObject>(jsonString, converter);
Upgrade MySql driver to Connector/Python 8.0.17 or greater than 8.0.17, Those who are using greater than MySQL 5.5 version
None of the different solutions found in the many topics on the subject worked perfectly for my case (x dynamic multiline labels in dynamic table view cells) .
I found a way to do it :
After having set the constraints on your label and set its multiline property to 0, make a subclass of UILabel ; I called mine AutoLayoutLabel :
@implementation AutoLayoutLabel
- (void)layoutSubviews{
[self setNeedsUpdateConstraints];
[super layoutSubviews];
self.preferredMaxLayoutWidth = CGRectGetWidth(self.bounds);
}
@end
http://en.wikipedia.org/wiki/Post/Redirect/Get
The most common way to implement this pattern in ASP.Net is to use Response.Redirect(Request.RawUrl)
Consider the differences between Redirect and Transfer. Transfer really isn't telling the browser to forward to a clear form, it's simply returning a cleared form. That may or may not be what you want.
Response.Redirect() does not a waste round trip. If you post to a script that clears the form by Server.Transfer() and reload you will be asked to repost by most browsers since the last action was a HTTP POST. This may cause your users to unintentionally repeat some action, eg. place a second order which will have to be voided later.
Sushant Gupta's answers are a tad bit outdated and don't work anymore.
The following snippet should be like this now :
collection.find({}, {"sort" : ['datefield', 'asc']} ).toArray(function(err,docs) {});
Just select the text you want to change, right click and select UPPERCASE or lowercase depending on what you want.
If you're using MySQL, you can use
SELECT GREATEST(col1, col2 ...) FROM table
As @kirbyfan64sos notes in a comment, /home
is NOT your home directory (a.k.a. home folder):
The fact that /home
is an absolute, literal path that has no user-specific component provides a clue.
While /home
happens to be the parent directory of all user-specific home directories on Linux-based systems, you shouldn't even rely on that, given that this differs across platforms: for instance, the equivalent directory on macOS is /Users
.
What all Unix platforms DO have in common are the following ways to navigate to / refer to your home directory:
cd
with NO argument changes to your home dir., i.e., makes your home dir. the working directory.
cd # changes to home dir; e.g., '/home/jdoe'
~
by itself / unquoted ~/
at the start of a path string represents your home dir. / a path starting at your home dir.; this is referred to as tilde expansion (see man bash
)
echo ~ # outputs, e.g., '/home/jdoe'
$HOME
- as part of either unquoted or preferably a double-quoted string - refers to your home dir. HOME
is a predefined, user-specific environment variable:
cd "$HOME/tmp" # changes to your personal folder for temp. files
Thus, to create the desired folder, you could use:
mkdir "$HOME/bin" # same as: mkdir ~/bin
Note that most locations outside your home dir. require superuser (root user) privileges in order to create files or directories - that's why you ran into the Permission denied
error.
BrenBarn is correct. The error means you tried to do something like None[5]
. In the backtrace, it says self.imageDef=self.values[2]
, which means that your self.values
is None
.
You should go through all the functions that update self.values
and make sure you account for all the corner cases.
Drop a MongoDB database using python:
import argparse
import pymongo
if __name__ == "__main__":
"""
Drop a Database.
"""
parser = argparse.ArgumentParser()
parser.add_argument("--host", default='mongodb://localhost:27017',
help="mongodb URI [default: %(default)s]")
parser.add_argument("--database", default=None,
help="database name: %(default)s]")
args = parser.parse_args()
client = pymongo.MongoClient(host=args.host)
if args.database in client.list_database_names():
client.drop_database(args.database)
print(f"Dropped: '{args.database}'")
else:
print(f"Database '{args.database}' does not exist")
I believe those who study typography would tell you that 66 characters per a line is supposed to be the most readable width for length. Even so, if you need to debug a machine remotely over an ssh session, most terminals default to 80 characters, 79 just fits, trying to work with anything wider becomes a real pain in such a case. You would also be suprised by the number of developers using vim + screen as a day to day environment.
Guess this is reallllly late for this. But adding the below config to the app.module imports does the job:
RouterModule.forRoot(routes, { useHash: false })
Tuple classes allow developers to be 'quick and lazy' by not defining a specific class for a specific use.
The property names are Item1, Item2, Item3 ..., which may not be meaningful in some cases or without documentation.
Tuple classes have strongly typed generic parameters. Still users of the Tuple classes may infer from the type of generic parameters.
Make sure HDFS is online. Start it by $HADOOP_HOME/sbin/start-dfs.sh
Once you do that, your test with telnet localhost 9001
should work.
Here is a code fragment
soup = BeautifulSoup(:"index.html")
titleList = soup.findAll('title')
divList = soup.findAll('div', attrs={ "class" : "article story"})
As you can see I find all tags and then I find all tags with class="article" inside
In my case I had a ucfirst
on the asian letters string. This was not possible and produced a non utf8 string.
Vagrant-lxc is a plugin for Vagrant that let's you use LXC to provision Vagrant. It does not have all the features that the default vagrant VM (VirtualBox) has but it should allow you more flexibility than docker containers. There is a video in the link showing its capabilities that is worth watching.
To access helpers from your own controllers, just use:
OrdersController.helpers.order_number(@order)
Control characters:
(Hex codes assume an ASCII-compatible character encoding.)
\a
= \x07
= alert (bell)\b
= \x08
= backspace\t
= \x09
= horizonal tab\n
= \x0A
= newline (or line feed)\v
= \x0B
= vertical tab\f
= \x0C
= form feed\r
= \x0D
= carriage return\e
= \x1B
= escape (non-standard GCC extension)Punctuation characters:
\"
= quotation mark (backslash not required for '"'
)\'
= apostrophe (backslash not required for "'"
)\?
= question mark (used to avoid trigraphs)\\
= backslashNumeric character references:
\
+ up to 3 octal digits\x
+ any number of hex digits\u
+ 4 hex digits (Unicode BMP, new in C++11)\U
+ 8 hex digits (Unicode astral planes, new in C++11)\0
= \00
= \000
= octal ecape for null character
If you do want an actual digit character after a \0
, then yes, I recommend string concatenation. Note that the whitespace between the parts of the literal is optional, so you can write "\0""0"
.
The static
modifier after import
is for retrieving/using static fields of a class. One area in which I use import static
is for retrieving constants from a class.
We can also apply import static
on static methods. Make sure to type import static
because static import
is wrong.
What is static import
in Java - JavaRevisited - A very good resource to know more about import static
.
If you are running your script at linux environment you can use this command:
bsub -q server_name -R "rusage[mem=requested_memory]" "Rscript script_name.R"
and the server will allocate the requested memory for you (according to the server limits, but with good server - hugefiles can be used)
Having following html:
<!-- note that not all browsers focus on links when Tab is pressed -->
<a href="http://example.com">Link</a>
<input type="text" placeholder="Some input" />
<a href="http://example.com">Another Link</a>
<textarea>...</textarea>
You can get to active link with:
// event listener for keyup
function checkTabPress(e) {
"use strict";
// pick passed event or global event object if passed one is empty
e = e || event;
var activeElement;
if (e.keyCode == 9) {
// Here read the active selected link.
activeElement = document.activeElement;
// If HTML element is an anchor <a>
if (activeElement.tagName.toLowerCase() == 'a')
// get it's hyperlink
alert(activeElement.href);
}
}
var body = document.querySelector('body');
body.addEventListener('keyup', checkTabPress);
Here is working example.
You can also do something:
SELECT CAST(CAST(34512367.392 AS decimal(30,9)) AS NVARCHAR(100))
Output:
34512367.392000000
Use the Calendar-API:
// get Calendar instance
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
// substract 7 days
// If we give 7 there it will give 8 days back
cal.set(Calendar.DAY_OF_MONTH, cal.get(Calendar.DAY_OF_MONTH)-6);
// convert to date
Date myDate = cal.getTime();
Hope this helps. Have Fun!
Like @Maximiliangerhardt said, MiniJson do not have the capability to deserialize properly. I used JsonFx and works like a charm. Works with the []
player[] p = JsonReader.Deserialize<player[]>(serviceData);
Debug.Log(p[0].playerId +" "+ p[0].playerLoc+"--"+ p[1].playerId + " " + p[1].playerLoc+"--"+ p[2].playerId + " " + p[2].playerLoc);
var key = "Name_radio";
var val = "value_radio";
var rdo = $('*[name="' + key + '"]');
if (rdo.attr('type') == "radio") {
$.each(rdo, function (keyT, valT){
if ((valT.value == $.trim(val)) && ($.trim(val) != '') && ($.trim(val) != null))
{
$('*[name="' + key + '"][value="' + (val) + '"]').prop('checked', true);
}
})
}
FLENS
It also implements a lot of LAPACK functions.
Because the Method2
is static, all you have to do is call like this:
public class AllMethods
{
public static void Method2()
{
// code here
}
}
class Caller
{
public static void Main(string[] args)
{
AllMethods.Method2();
}
}
If they are in different namespaces you will also need to add the namespace of AllMethods
to caller.cs in a using
statement.
If you wanted to call an instance method (non-static), you'd need an instance of the class to call the method on. For example:
public class MyClass
{
public void InstanceMethod()
{
// ...
}
}
public static void Main(string[] args)
{
var instance = new MyClass();
instance.InstanceMethod();
}
Update
As of C# 6, you can now also achieve this with using static
directive to call static methods somewhat more gracefully, for example:
// AllMethods.cs
namespace Some.Namespace
{
public class AllMethods
{
public static void Method2()
{
// code here
}
}
}
// Caller.cs
using static Some.Namespace.AllMethods;
namespace Other.Namespace
{
class Caller
{
public static void Main(string[] args)
{
Method2(); // No need to mention AllMethods here
}
}
}
Further Reading
The question is about VS 2008 Express.
Microsoft's web page for registering Visual Studio 2008 Express has been dead (404) for some time, so registering it is not possible.
Instead, as a workaround, you can temporarily remove the requirement to register VS2008Exp by deleting (or renaming) the registry key:
HKEY_CURRENT_USER/Software/Microsoft/VCExpress/9.0/Registration
To ensure that this is working beforehand, click Help -> register product within VS2008.
You should see text like
"You have not yet registered your copy of Visual C++ 2008 Express Edition. This product will run for 10 more days before you will be required to register it."
Close the application, delete that key, reopen, click help->register product.
The text should now say
"You have not yet registered your copy of Visual C++ 2008 Express Edition. This product will run for 30 more days before you will be required to register it."
So you have two options - delete that key manually every 30 days, or run it from a batch file that also contains a line like:
reg delete HKCU\Software\Microsoft\VCExpress\9.0\Registration /f
[Edit: User @i486 confirms on testing that this workaround works even after the expiration period has expired]
[Edit2: User @Wyatt8740 has a much more elegant way to prevent the value from reappearing.]
Yes you right and I just want to make it understandable for complete beginners.
<link rel="shortcut icon" href="images/favicon.ico" />
and past it without any changes in between <head>
opening and </head>
closing tag.Fixed it... somewhat.
public class JsonFormatter
{
#region class members
const string Space = " ";
const int DefaultIndent = 0;
const string Indent = Space + Space + Space + Space;
static readonly string NewLine = Environment.NewLine;
#endregion
private enum JsonContextType
{
Object, Array
}
static void BuildIndents(int indents, StringBuilder output)
{
indents += DefaultIndent;
for (; indents > 0; indents--)
output.Append(Indent);
}
bool inDoubleString = false;
bool inSingleString = false;
bool inVariableAssignment = false;
char prevChar = '\0';
Stack<JsonContextType> context = new Stack<JsonContextType>();
bool InString()
{
return inDoubleString || inSingleString;
}
public string PrettyPrint(string input)
{
var output = new StringBuilder(input.Length * 2);
char c;
for (int i = 0; i < input.Length; i++)
{
c = input[i];
switch (c)
{
case '{':
if (!InString())
{
if (inVariableAssignment || (context.Count > 0 && context.Peek() != JsonContextType.Array))
{
output.Append(NewLine);
BuildIndents(context.Count, output);
}
output.Append(c);
context.Push(JsonContextType.Object);
output.Append(NewLine);
BuildIndents(context.Count, output);
}
else
output.Append(c);
break;
case '}':
if (!InString())
{
output.Append(NewLine);
context.Pop();
BuildIndents(context.Count, output);
output.Append(c);
}
else
output.Append(c);
break;
case '[':
output.Append(c);
if (!InString())
context.Push(JsonContextType.Array);
break;
case ']':
if (!InString())
{
output.Append(c);
context.Pop();
}
else
output.Append(c);
break;
case '=':
output.Append(c);
break;
case ',':
output.Append(c);
if (!InString() && context.Peek() != JsonContextType.Array)
{
BuildIndents(context.Count, output);
output.Append(NewLine);
BuildIndents(context.Count, output);
inVariableAssignment = false;
}
break;
case '\'':
if (!inDoubleString && prevChar != '\\')
inSingleString = !inSingleString;
output.Append(c);
break;
case ':':
if (!InString())
{
inVariableAssignment = true;
output.Append(Space);
output.Append(c);
output.Append(Space);
}
else
output.Append(c);
break;
case '"':
if (!inSingleString && prevChar != '\\')
inDoubleString = !inDoubleString;
output.Append(c);
break;
case ' ':
if (InString())
output.Append(c);
break;
default:
output.Append(c);
break;
}
prevChar = c;
}
return output.ToString();
}
}
credit [dead link]
Simply call list
on the generator.
lst = list(gen)
lst
Be aware that this affects the generator which will not return any further items.
You also cannot directly call list
in IPython, as it conflicts with a command for listing lines of code.
Tested on this file:
def gen():
yield 1
yield 2
yield 3
yield 4
yield 5
import ipdb
ipdb.set_trace()
g1 = gen()
text = "aha" + "bebe"
mylst = range(10, 20)
which when run:
$ python code.py
> /home/javl/sandbox/so/debug/code.py(10)<module>()
9
---> 10 g1 = gen()
11
ipdb> n
> /home/javl/sandbox/so/debug/code.py(12)<module>()
11
---> 12 text = "aha" + "bebe"
13
ipdb> lst = list(g1)
ipdb> lst
[1, 2, 3, 4, 5]
ipdb> q
Exiting Debugger.
There are debugger commands p
and pp
that will print
and prettyprint
any expression following them.
So you could use it as follows:
$ python code.py
> /home/javl/sandbox/so/debug/code.py(10)<module>()
9
---> 10 g1 = gen()
11
ipdb> n
> /home/javl/sandbox/so/debug/code.py(12)<module>()
11
---> 12 text = "aha" + "bebe"
13
ipdb> p list(g1)
[1, 2, 3, 4, 5]
ipdb> c
There is also an exec
command, called by prefixing your expression with !
, which forces debugger to take your expression as Python one.
ipdb> !list(g1)
[]
For more details see help p
, help pp
and help exec
when in debugger.
ipdb> help exec
(!) statement
Execute the (one-line) statement in the context of
the current stack frame.
The exclamation point can be omitted unless the first word
of the statement resembles a debugger command.
To assign to a global variable you must always prefix the
command with a 'global' command, e.g.:
(Pdb) global list_options; list_options = ['-l']
If you are looking for NA
counts for each column in a dataframe then:
na_count <-sapply(x, function(y) sum(length(which(is.na(y)))))
should give you a list with the counts for each column.
na_count <- data.frame(na_count)
Should output the data nicely in a dataframe like:
----------------------
| row.names | na_count
------------------------
| column_1 | count
Created a stored procedure to list indexes for a table in database in SQL Server
create procedure _ListIndexes(@tableName nvarchar(200))
as
begin
/*
exec _ListIndexes '<YOUR TABLE NAME>'
*/
SELECT DB_NAME(DB_ID()) as DBName,SCH.name + '.' + TBL.name AS TableName,IDX.name as IndexName, IDX.type_desc AS IndexType,COL.Name as ColumnName,IC.*
FROM sys.tables AS TBL
INNER JOIN sys.schemas AS SCH ON TBL.schema_id = SCH.schema_id
INNER JOIN sys.indexes AS IDX ON TBL.object_id = IDX.object_id
INNER JOIN sys.index_columns IC ON IDX.object_id = IC.object_id and IDX.index_id = IC.index_id
INNER JOIN sys.columns COL ON ic.object_id = COL.object_id and IC.column_id = COL.column_id
where TBL.name = @tableName
ORDER BY TableName,IDX.name
end
To expound on Numenor's answer you can do something like, Format(Now(),"HH:mm:ss") using these custom date/time formating options
For everyone who is tempted to downvote this answer please be aware that the question was originally tagged VB and vbscript hence my answer, the VB tag was edited out leaving only the vbscript tag. The OP accepted this answer which I take to mean that it gave him the information that he needed.
I use something like this in my document.ready
var height = $(window).height();//gets height from device
var width = $(window).width(); //gets width from device
$("#container").width(width+"px");
$("#container").height(height+"px");
You need CSS to achieve this, e.g.:
#container_2 {
-webkit-transform: rotate(90deg);
-moz-transform: rotate(90deg);
-o-transform: rotate(90deg);
-ms-transform: rotate(90deg);
transform: rotate(90deg);
}
Demo:
#container_2 {_x000D_
width: 100px;_x000D_
height: 100px;_x000D_
border: 1px solid red;_x000D_
-webkit-transform: rotate(45deg);_x000D_
-moz-transform: rotate(45deg);_x000D_
-o-transform: rotate(45deg);_x000D_
-ms-transform: rotate(45deg);_x000D_
transform: rotate(45deg);_x000D_
}
_x000D_
<div id="container_2"></div>
_x000D_
(There's 45 degrees rotation in the demo, so you can see the effect)
Note: The -o-
and -moz-
prefixes are no longer relevant and probably not required. IE9 requires -ms-
and Safari and the Android browser require -webkit-
Update 2018: Vendor prefixes are not needed anymore. Only transform
is sufficient. (thanks @rinogo)
This feature was implemented in the version 2.0.0 of npm. Example:
{
"name": "baz",
"dependencies": {
"bar": "file:../foo/bar"
}
}
Any of the following paths are also valid:
../foo/bar
~/foo/bar
./foo/bar
/foo/bar
The local package will be copied to the prefix (./node-modules
).
Put somelocallib
as dependency in your package.json
as normal:
"dependencies": {
"somelocallib": "0.0.x"
}
Then run npm link ../somelocallib
and npm will install the version you're working on as a symlink.
[email protected] /private/tmp/app
+-- [email protected] -> /private/tmp/somelocallib
Reference: link(1)
If you need native data types for some reason (e.g. JSON serialization) this is my quick 'n' dirty way to do it:
data = [{'id': blog.pk, 'name': blog.name} for blog in blogs]
As you can see building the dict inside the list is not really DRY so if somebody knows a better way ...
You can use sklearn.preprocessing:
from sklearn.preprocessing import normalize
data = np.array([
[1000, 10, 0.5],
[765, 5, 0.35],
[800, 7, 0.09], ])
data = normalize(data, axis=0, norm='max')
print(data)
>>[[ 1. 1. 1. ]
[ 0.765 0.5 0.7 ]
[ 0.8 0.7 0.18 ]]
Solomon's answer about bootstrap inspired me to add the CSS the bootstrap solution uses, which works really well for me.
.iframe-embed {
position: absolute;
top: 0;
left: 0;
bottom: 0;
height: 100%;
width: 100%;
border: 0;
}
.iframe-embed-wrapper {
position: relative;
display: block;
height: 0;
padding: 0;
overflow: hidden;
}
.iframe-embed-responsive-16by9 {
padding-bottom: 56.25%;
}
<div class="iframe-embed-wrapper iframe-embed-responsive-16by9">
<iframe class="iframe-embed" src="vid.mp4"></iframe>
</div>
You can do this:
Change the package name manually in the manifest file. Click on your R.java class and the press F6 (Refactor->Move...). It will allow you to move the class to other package, and all references to that class will be updated.
reference: How do I rename the android package name?
I think because it's Standard's ver.
I don't know if you write your code in VS. But if you did, just go to ARCHITECTURE - new Diagram. & choose yours, & the VS 'll take the care of the rest :)
For anyone who fumbled with this, here is how I got to grant the privileges, hope it helps someone
GRANT ALL ON yourdatabasename.* TO root@'%' IDENTIFIED BY
'yourRootPassword';
As noted %
is a wildcard and this will allow any IP address to connect to your database. The assumption I make here is when you connect you'll have a user named root
(which is the default though). Feed in the root password and you are good to go. Note that I have no single quotes ('
) around the user root.
The answer is no because SparseArray
doesn't provide it. As pst
put it, this thing doesn't provide any interfaces.
You could loop from 0 - size()
and skip values that return null
, but that is about it.
As I state in my comment, if you need to iterate use a Map
instead of a SparseArray
. For example, use a TreeMap
which iterates in order by the key.
TreeMap<Integer, MyType>
If I remember correctly (from a couple of years ago), one of the senior developers was talking about a fast way to bzero() on PowerPC (specs said we needed to zero almost all the memory on power up). It might not translate well (if at all) to x86, but it could be worth exploring.
The idea was to load a data cache line, clear that data cache line, and then write the cleared data cache line back to memory.
For what it is worth, I hope it helps.
Configurations above didn't work for me. I tried a lot of combinations of keys, this one work fine:
<key>NSAppTransportSecurity</key>
<dict>
<key>NSExceptionDomains</key>
<dict>
<key>mydomain.com</key>
<dict>
<key>NSIncludesSubdomains</key>
<true/>
<key>NSExceptionAllowsInsecureHTTPLoads</key>
<true/>
<key>NSExceptionRequiresForwardSecrecy</key>
<false/>
</dict>
</dict>
</dict>
If you are working with a one-dimensional array there is a syntactic sugar:
>>> x = numpy.array([1,0,2,0,3,0,4,5,6,7,8])
>>> numpy.flatnonzero(x == 0)
array([1, 3, 5])
The convention for out of range in JavaScript is using RangeError
. To check the type use if / else + instanceof
starting at the most specific to the most generic
try {
throw new RangeError();
}
catch (e){
if (e instanceof RangeError){
console.log('out of range');
} else {
throw;
}
}
Check if your Java JDK is installed correctly
dpkg --list | grep -i jdk
If not, install JDK
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update && sudo apt-get install oracle-java8-installer
After the installation you have to enable the jdk
update-alternatives --display java
Check if Ubuntu uses Java JDK 8
java -version
If all went right the answer should be something like this:
java version "1.8.0_91"
Java(TM) SE Runtime Environment (build 1.8.0_91-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.91-b14, mixed mode)
Check what compiler is used
javac -version
It should show something like this
javac 1.8.0_91
Finally, add JAVA_HOME to the environment variable
Edit /etc/environment
and add JAVA_HOME=/usr/lib/jvm/java-8-oracle
to the end of the file
sudo nano /etc/environment
Append to the end of the file
JAVA_HOME=/usr/lib/jvm/java-8-oracle
You will then have to reboot, you can do this from the terminal with:
sudo reboot
In case you want to remove the JDK
sudo apt-get remove oracle-java8-installer
It is called closure.
Basically, the function defined within other function is accessible only within this function. But may be passed as a result and then this result may be called.
It is a very powerful feature. You can see more explanation here:
<!DOCTYPE html>
<html>
<head>
<title>Dynamical Add/Remove Text Box</title>
<script language="javascript">
localStorage.i = Number(1);
function myevent(action)
{
var i = Number(localStorage.i);
var div = document.createElement('div');
if(action.id == "add")
{
localStorage.i = Number(localStorage.i) + Number(1);
var id = i;
div.id = id;
div.innerHTML = 'TextBox_'+id+': <input type="text" name="tbox_'+id+'"/>' + ' <input type="button" id='+id+' onclick="myevent(this)" value="Delete" />';
document.getElementById('AddDel').appendChild(div);
}
else
{
var element = document.getElementById(action.id);
element.parentNode.removeChild(element);
}
}
</script>
</head>
<body>
<fieldset>
<legend>Dynamical Add / Remove Text Box</legend>
<form>
<div id="AddDel">
Default TextBox:
<input type="text" name="default_tb">
<input type="button" id="add" onclick="myevent(this)" value="Add" />
</div>
<input type="button" type="submit" value="Submit Data" />
</form>
</fieldset>
</body>
</html>
Constraints are part of a database schema definition.
A constraint is usually associated with a table and is created with a CREATE CONSTRAINT
or CREATE ASSERTION
SQL statement.
They define certain properties that data in a database must comply with. They can apply to a column, a whole table, more than one table or an entire schema. A reliable database system ensures that constraints hold at all times (except possibly inside a transaction, for so called deferred constraints).
Common kinds of constraints are:
You can use Target-specific Variable Values. Example:
CXXFLAGS = -g3 -gdwarf2
CCFLAGS = -g3 -gdwarf2
all: executable
debug: CXXFLAGS += -DDEBUG -g
debug: CCFLAGS += -DDEBUG -g
debug: executable
executable: CommandParser.tab.o CommandParser.yy.o Command.o
$(CXX) -o output CommandParser.yy.o CommandParser.tab.o Command.o -lfl
CommandParser.yy.o: CommandParser.l
flex -o CommandParser.yy.c CommandParser.l
$(CC) -c CommandParser.yy.c
Remember to use $(CXX) or $(CC) in all your compile commands.
Then, 'make debug' will have extra flags like -DDEBUG and -g where as 'make' will not.
On a side note, you can make your Makefile a lot more concise like other posts had suggested.
Alternatively, if you are not using a bundler like webpack or rollup, you could as a workaround just import the contents of https://raw.githubusercontent.com/facebook/regenerator/master/packages/regenerator-runtime/runtime.js using a plain old script tag in your index.html.
Not optimal, but in my case the only solution.
Your date time string doesn't contains any seconds. You need to reflect that in your format (remove the :ss
).
Also, you need to specify H
instead of h
if you are using 24 hour times:
DateTime.ParseExact("04/30/2013 23:00", "MM/dd/yyyy HH:mm", CultureInfo.InvariantCulture)
See here for more information:
Excel 2007 has a feature for doing this under the "Data" tab that works pretty nicely.
You can achieve this by setting content mode of image view to UIViewContentModeScaleAspectFill.
Then use following method method to get the resized uiimage object.
- (UIImage*)setProfileImage:(UIImage *)imageToResize onImageView:(UIImageView *)imageView
{
CGFloat width = imageToResize.size.width;
CGFloat height = imageToResize.size.height;
float scaleFactor;
if(width > height)
{
scaleFactor = imageView.frame.size.height / height;
}
else
{
scaleFactor = imageView.frame.size.width / width;
}
UIGraphicsBeginImageContextWithOptions(CGSizeMake(width * scaleFactor, height * scaleFactor), NO, 0.0);
[imageToResize drawInRect:CGRectMake(0, 0, width * scaleFactor, height * scaleFactor)];
UIImage *resizedImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return resizedImage;
}
Edited Here (Swift Version)
func setProfileImage(imageToResize: UIImage, onImageView: UIImageView) -> UIImage
{
let width = imageToResize.size.width
let height = imageToResize.size.height
var scaleFactor: CGFloat
if(width > height)
{
scaleFactor = onImageView.frame.size.height / height;
}
else
{
scaleFactor = onImageView.frame.size.width / width;
}
UIGraphicsBeginImageContextWithOptions(CGSizeMake(width * scaleFactor, height * scaleFactor), false, 0.0)
imageToResize.drawInRect(CGRectMake(0, 0, width * scaleFactor, height * scaleFactor))
let resizedImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return resizedImage;
}
Padding and packing are just two aspects of the same thing:
In mystruct_A
, assuming a default alignment of 4, each member is aligned on a multiple of 4 bytes. Since the size of char
is 1, the padding for a
and c
is 4 - 1 = 3 bytes while no padding is required for int b
which is already 4 bytes. It works the same way for mystruct_B
.
My dirty solution is:
public class TestCaseExtended extends TestCase {
private boolean isInitialized = false;
private int serId;
@Override
public void setUp() throws Exception {
super.setUp();
if(!isInitialized) {
loadSaveNewSerId();
emptyTestResultsDirectory();
isInitialized = true;
}
}
...
}
I use it as a base base to all my testCases.
(document.body.outerHTML).constructor
will return String
. (take off .constructor
and that's your string)
That aughta do it :)
Just to complement @maxkoryukov's answer regarding Alpine.
The equivalent to Debian's build-essential
in Alpine is build-base
. In fact, the above mentioned alpine-sdk
depends on build-base
.
/ # apk info -R build-base
build-base-0.5-r1 depends on:
binutils
file
gcc
g++
make
libc-dev
fortify-headers
/ # apk info -R alpine-sdk
alpine-sdk-1.0-r0 depends on:
abuild
build-base
git
Just call this.finish() before startActivity(intent) like this-
Intent intent = new Intent(ActivityOne.this, ActivityTwo.class);
this.finish();
startActivity(intent);
var elem = document.createElement('link');
elem.rel = ' stylesheet'
elem.href= 'style.css';//Link of the css file
document.head.appendChild(elem);
As a general rule, modifying schema based on something that a user could change (such as adding a question to a survey) should be considered fairly smelly. There's cases where it can be appropriate, particularly when dealing with large amounts of data, but know what you're getting into before you dive in. Having just a "responses" table for each survey means that adding or removing questions is potentially very costly, and it's very difficult to do analytics in a question-agnostic way.
I think your second approach is best, but if you're certain you're going to have a lot of scale concerns, one thing that has worked for me in the past is a hybrid approach:
This is absolutely a lot more work to implement, so I really wouldn't advise this unless you know for certain that this table is going to run into massive scale concerns.
This is a bit of self promotion, but I built a tool to do just this that you might find useful, called GeoPeeker.
It remotely accesses a site from servers spread around the world, renders the page with webkit and sends back an image. It will also report the IP address and DNS information of the site as it appears from that location.
There are no ads, and it's very stream-lined to serve this one purpose. It's still in development, and feedback is welcome. Here's hoping somebody besides myself finds it useful!
Another issue here is that you likely need to turn off "connect as media device" to be able to connect with adb.
This will explain it, I think...
import java.io.*;
class reading
{
public static void main(String args[]) throws IOException
{
float number;
System.out.println("Enter a number");
try
{
InputStreamReader in = new InputStreamReader(System.in);
BufferedReader br = new BufferedReader(in);
String a = br.readLine();
number = Float.valueOf(a);
int x = (int)number;
System.out.println("Your input=" + number);
System.out.println("Your input in integer terms is = " + x);
}
catch(Exception e){
}
}
}
$files = glob($_SERVER["DOCUMENT_ROOT"]."/myFolder/*");
private void RunAsync()
{
string param = "Hi";
Task.Run(() => MethodWithParameter(param));
}
private void MethodWithParameter(string param)
{
//Do stuff
}
Edit
Due to popular demand I must note that the Task
launched will run in parallel with the calling thread. Assuming the default TaskScheduler
this will use the .NET ThreadPool
. Anyways, this means you need to account for whatever parameter(s) being passed to the Task
as potentially being accessed by multiple threads at once, making them shared state. This includes accessing them on the calling thread.
In my above code that case is made entirely moot. Strings are immutable. That's why I used them as an example. But say you're not using a String
...
One solution is to use async
and await
. This, by default, will capture the SynchronizationContext
of the calling thread and will create a continuation for the rest of the method after the call to await
and attach it to the created Task
. If this method is running on the WinForms GUI thread it will be of type WindowsFormsSynchronizationContext
.
The continuation will run after being posted back to the captured SynchronizationContext
- again only by default. So you'll be back on the thread you started with after the await
call. You can change this in a variety of ways, notably using ConfigureAwait
. In short, the rest of that method will not continue until after the Task
has completed on another thread. But the calling thread will continue to run in parallel, just not the rest of the method.
This waiting to complete running the rest of the method may or may not be desirable. If nothing in that method later accesses the parameters passed to the Task
you may not want to use await
at all.
Or maybe you use those parameters much later on in the method. No reason to await
immediately as you could continue safely doing work. Remember, you can store the Task
returned in a variable and await
on it later - even in the same method. For instance, once you need to access the passed parameters safely after doing a bunch some other work. Again, you do not need to await
on the Task
right when you run it.
Anyways, a simple way to make this thread-safe with respect to the parameters passed to Task.Run
is to do this:
You must first decorate RunAsync
with async
:
private async void RunAsync()
Important Note
Preferably the method marked async
should not return void, as the linked documentation mentions. The common exception to this is event handlers such as button clicks and such. They must return void. Otherwise I always try to return a Task
or Task<TResult>
when using async
. It's good practice for a quite a few reasons.
Now you can await
running the Task
like below. You cannot use await
without async
.
await Task.Run(() => MethodWithParameter(param));
//Code here and below in the same method will not run until AFTER the above task has completed in one fashion or another
So, in general, if you await
the task you can avoid treating passed in parameters as a potentially shared resource with all the pitfalls of modifying something from multiple threads at once. Also, beware of closures. I won't cover those in depth but the linked article does a great job of it.
Side Note
A bit off topic, but be careful using any type of "blocking" on the WinForms GUI thread due to it being marked with [STAThread]
. Using await
won't block at all, but I do sometimes see it used in conjunction with some sort of blocking.
"Block" is in quotes because you technically cannot block the WinForms GUI thread. Yes, if you use lock
on the WinForms GUI thread it will still pump messages, despite you thinking it's "blocked". It's not.
This can cause bizarre issues in very rare cases. One of the reasons you never want to use a lock
when painting, for example. But that's a fringe and complex case; however I've seen it cause crazy issues. So I noted it for completeness sake.
Based on Galik's answer I made this. This is mostly here so I don't have to keep writing it again and again. It's crazy that C++ still doesn't have a native split function. Features:
"\r\n"
)#include <string>
#include <vector>
#include <algorithm>
std::vector<std::string> split(const std::string& s, const std::string& delims)
{
using namespace std;
vector<string> v;
// Start of an element.
size_t elemStart = 0;
// We start searching from the end of the previous element, which
// initially is the start of the string.
size_t elemEnd = 0;
// Find the first non-delim, i.e. the start of an element, after the end of the previous element.
while((elemStart = s.find_first_not_of(delims, elemEnd)) != string::npos)
{
// Find the first delem, i.e. the end of the element (or if this fails it is the end of the string).
elemEnd = s.find_first_of(delims, elemStart);
// Add it.
v.emplace_back(s, elemStart, elemEnd == string::npos ? string::npos : elemEnd - elemStart);
}
// When there are no more non-spaces, we are done.
return v;
}
do adb pull \sdcard\log.txt C:Users\admin\Desktop
This is the way to iterate on this array:
foreach($hotels as $row) {
foreach($row['rooms'] as $k) {
echo $k['boards']['board_id'];
echo $k['boards']['price'];
}
}
You want to iterate on the hotels and the rooms (the ones with numeric indexes), because those seem to be the "collections" in this case. The other arrays only hold and group properties.
I'll post what worked for me, thanks to @xavi-montero.
Put your CSS in your bundle's Resource/public/css
directory, and your images in say Resource/public/img
.
Change assetic paths to the form 'bundles/mybundle/css/*.css'
, in your layout.
In config.yml
, add rule css_rewrite
to assetic:
assetic:
filters:
cssrewrite:
apply_to: "\.css$"
Now install assets and compile with assetic:
$ rm -r app/cache/* # just in case
$ php app/console assets:install --symlink
$ php app/console assetic:dump --env=prod
This is good enough for the development box, and --symlink
is useful, so you don't have to reinstall your assets (for example, you add a new image) when you enter through app_dev.php
.
For the production server, I just removed the '--symlink' option (in my deployment script), and added this command at the end:
$ rm -r web/bundles/*/css web/bundles/*/js # all this is already compiled, we don't need the originals
All is done. With this, you can use paths like this in your .css files: ../img/picture.jpeg
Well, it's clearly not a number since it has dashes in it. The error message and the two comments tell you that it is a factor but the commentators are apparently waiting and letting the message sink in. Dirk is suggesting that you do this:
EPL2011_12$Date2 <- as.Date( as.character(EPL2011_12$Date), "%d-%m-%y")
After that you can do this:
EPL2011_12FirstHalf <- subset(EPL2011_12, Date2 > as.Date("2012-01-13") )
R date functions assume the format is either "YYYY-MM-DD" or "YYYY/MM/DD". You do need to compare like classes: date to date, or character to character.
If a certificate expires in the middle of project debugging, you must do a manual uninstall:
Please execute
adb uninstall <package_name>
in a shell.
Here is a simple snippet that sorts a javascript representation of a Json.
function isObject(v) {
return '[object Object]' === Object.prototype.toString.call(v);
};
JSON.sort = function(o) {
if (Array.isArray(o)) {
return o.sort().map(JSON.sort);
} else if (isObject(o)) {
return Object
.keys(o)
.sort()
.reduce(function(a, k) {
a[k] = JSON.sort(o[k]);
return a;
}, {});
}
return o;
}
It can be used as follows:
JSON.sort({
c: {
c3: null,
c1: undefined,
c2: [3, 2, 1, 0],
},
a: 0,
b: 'Fun'
});
That will output:
{
a: 0,
b: 'Fun',
c: {
c2: [3, 2, 1, 0],
c3: null
}
}
Here's a variation of Oscar's first version that doesn't use a for-each loop.
for (int i = 0; i < charArray.length; i++) {
if (charArray[i] == 'q') {
// do something
break;
}
}
You could have a boolean variable that gets set to false before the loop, then make "do something" set the variable to true, which you could test for after the loop. The loop could also be wrapped in a function call then just use 'return true' instead of the break, and add a 'return false' statement after the for loop.
Its a simple technique using the script also. You can check a demo here too.
JQuery
$(window).scroll(function(){
$('#header').css({
'left': $(this).scrollLeft() + 15
//Why this 15, because in the CSS, we have set left 15, so as we scroll, we would want this to remain at 15px left
});
});
CSS
#header {
top: 15px;
left: 15px;
position: absolute;
}
Update Credit: @PierredeLESPINAY
As commented, to make the script support the changes in the css without having to recode them in the script. You can use the following.
var leftOffset = parseInt($("#header").css('left')); //Grab the left position left first
$(window).scroll(function(){
$('#header').css({
'left': $(this).scrollLeft() + leftOffset //Use it later
});
});
Demo :)
CSS will skip over style declarations it doesn't understand. Mozilla-based browsers will not understand -webkit
-prefixed declarations, and WebKit-based browsers will not understand -moz
-prefixed declarations.
Because of this, we can simply declare width
twice:
elem {
width: 100%;
width: -moz-available; /* WebKit-based browsers will ignore this. */
width: -webkit-fill-available; /* Mozilla-based browsers will ignore this. */
width: fill-available;
}
The width: 100%
declared at the start will be used by browsers which ignore both the -moz
and -webkit
-prefixed declarations or do not support -moz-available
or -webkit-fill-available
.
Make sure you're doing this for a good reason, a simple function like the following would allow static typing and allows your IDE to do things like "Find References" and Refactor -> Rename.
public Task <T> factory (String name)
{
Task <T> result;
if (name.CompareTo ("A") == 0)
{
result = new TaskA ();
}
else if (name.CompareTo ("B") == 0)
{
result = new TaskB ();
}
return result;
}
HTTPScoop is awesome for inspecting the web traffic on your Mac. It's been incredibly helpful for me. I didn't think twice about the $15 price tag. There is a 14 day trial.
I found this on exceljet.net and works for me:
=LEFT(B4,FIND(" ",B4)-1)
Replace double quotes with single ones:
INSERT
INTO MY.LOGFILE
(id,severity,category,logdate,appendername,message,extrainfo)
VALUES (
'dee205e29ec34',
'FATAL',
'facade.uploader.model',
'2013-06-11 17:16:31',
'LOGDB',
NULL,
NULL
)
In SQL, double quotes are used to mark identifiers, not string constants.
When using @RestController
like this:
@RestController
public class HomeController {
@RequestMapping("/")
public String welcome() {
return "login";
}
}
This is the same as you do like this in a normal controller:
@Controller
public class HomeController {
@RequestMapping("/")
@ResponseBody
public String welcome() {
return "login";
}
}
Using @ResponseBody
returns return "login";
as a String object. Any object you return will be attached as payload
in the HTTP body as JSON.
This is why you are getting just login
in the response.
You can use the Pattern
class for this. If you want to match only word characters inside the {}
then you can use the following regex. \w
is a shorthand for [a-zA-Z0-9_]
. If you are ok with _
then use \w
or else use [a-zA-Z0-9]
.
String URL = "https://localhost:8080/sbs/01.00/sip/dreamworks/v/01.00/cui/print/$fwVer/{$fwVer}/$lang/en/$model/{$model}/$region/us/$imageBg/{$imageBg}/$imageH/{$imageH}/$imageSz/{$imageSz}/$imageW/{$imageW}/movie/Kung_Fu_Panda_two/categories/3D_Pix/item/{item}/_back/2?$uniqueID={$uniqueID}";
Pattern pattern = Pattern.compile("/\\{\\w+\\}/");
Matcher matcher = pattern.matcher(URL);
if (matcher.find()) {
System.out.println(matcher.group(0)); //prints /{item}/
} else {
System.out.println("Match not found");
}
You should \usepackage{longtable}
.
There isn't a "pure python" way to do this because some other process would have to launch python in order to run your solution. Every platform will have one or twenty different ways to launch processes and monitor their progress. On unix platforms, cron is the old standard. On Mac OS X there is also launchd, which combines cron-like launching with watchdog functionality that can keep your process alive if that's what you want. Once python is running, then you can use the sched module to schedule tasks.
I would like to show a little example on how is
and ==
are involved in immutable types. Try that:
a = 19998989890
b = 19998989889 +1
>>> a is b
False
>>> a == b
True
is
compares two objects in memory, ==
compares their values. For example, you can see that small integers are cached by Python:
c = 1
b = 1
>>> b is c
True
You should use ==
when comparing values and is
when comparing identities. (Also, from an English point of view, "equals" is different from "is".)
For using custom drawable:
<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:fromDegrees="0"
android:toDegrees="360"
android:drawable="@drawable/my_drawable"
android:pivotX="50%"
android:pivotY="50%" />
(add under res/drawable progress.xml
). my_drawable
may be xml, png
Then in your layout use
<ProgressBar
android:id="@+id/progressBar"
android:indeterminateDrawable="@drawable/progress_circle"
...
/>
You can use the Range object in VBA to set the value of a named cell, just like any other cell.
Range("C1").Value = Inputbox("Which job number would you like to add to the list?)
Where "C1" is the name of the cell you want to update.
My Excel VBA is a little bit old and crusty, so there may be a better way to do this in newer versions of Excel.
Different database systems have different names for the same type of index, so be careful with this. For example, what SQL Server and Sybase call "clustered index" is called in Oracle an "index-organised table".
You can read it by chunks (byte buffer[] = new byte[2048]
) and write the chunks to a ByteArrayOutputStream. From the ByteArrayOutputStream you can retrieve the contents as a byte[], without needing to determine its size beforehand.
The String
class exposes some methods to enable this, such as IndexOf
and LastIndexOf
, so that you may do this:
Dim myText = "abcde"
Dim dIndex = myText.IndexOf("d")
If (dIndex > -1) Then
End If
comp:~$ python Python 2.7.6 (default, Jun 22 2015, 17:58:13) [GCC 4.8.2] on linux2
>>> import timeit
>>> timeit.timeit("[x for x in xrange(1000000) if x%4]",number=100)
5.656799077987671
>>> timeit.timeit("[x for x in xrange(1000000) if x%4]",number=100)
5.579368829727173
>>> timeit.timeit("[x for x in range(1000000) if x%4]",number=100)
21.54827117919922
>>> timeit.timeit("[x for x in range(1000000) if x%4]",number=100)
22.014557123184204
With timeit number=1 param:
>>> timeit.timeit("[x for x in range(1000000) if x%4]",number=1)
0.2245171070098877
>>> timeit.timeit("[x for x in xrange(1000000) if x%4]",number=1)
0.10750913619995117
comp:~$ python3 Python 3.4.3 (default, Oct 14 2015, 20:28:29) [GCC 4.8.4] on linux
>>> timeit.timeit("[x for x in range(1000000) if x%4]",number=100)
9.113872020003328
>>> timeit.timeit("[x for x in range(1000000) if x%4]",number=100)
9.07014398300089
With timeit number=1,2,3,4 param works quick and in linear way:
>>> timeit.timeit("[x for x in range(1000000) if x%4]",number=1)
0.09329321900440846
>>> timeit.timeit("[x for x in range(1000000) if x%4]",number=2)
0.18501482300052885
>>> timeit.timeit("[x for x in range(1000000) if x%4]",number=3)
0.2703447980020428
>>> timeit.timeit("[x for x in range(1000000) if x%4]",number=4)
0.36209142999723554
So it seems if we measure 1 running loop cycle like timeit.timeit("[x for x in range(1000000) if x%4]",number=1) (as we actually use in real code) python3 works quick enough, but in repeated loops python 2 xrange() wins in speed against range() from python 3.
Say:
sed "s|\$ROOT|${HOME}|" abc.sh
Note:
/
since the replacement contains /
$
in the pattern since you don't want to expand it.EDIT: In order to replace all occurrences of $ROOT
, say
sed "s|\$ROOT|${HOME}|g" abc.sh
Set the XML as:
<ToggleButton
android:id="@+id/flashlightButton"
style="@style/Button"
android:layout_above="@+id/buttonStrobeLight"
android:layout_marginBottom="20dp"
android:onClick="onToggleClicked"
android:text="ToggleButton"
android:textOn="Light ON"
android:textOff="Light OFF" />
Another way is to use the subplots
function and pass the width ratio with gridspec_kw
:
import numpy as np
import matplotlib.pyplot as plt
# generate some data
x = np.arange(0, 10, 0.2)
y = np.sin(x)
# plot it
f, (a0, a1) = plt.subplots(1, 2, gridspec_kw={'width_ratios': [3, 1]})
a0.plot(x, y)
a1.plot(y, x)
f.tight_layout()
f.savefig('grid_figure.pdf')
You really want to do this
flog.write("\nCompany Name: "+ pCompanyName.encode('utf-8'))
This is the "encode late" strategy described in this unicode presentation (slides 32 through 35).
As it turns out, the recent WebRTC extension of HTML5 allows javascript to query the local client IP address. A proof of concept is available here: http://net.ipcalf.com
This feature is apparently by design, and is not a bug. However, given its controversial nature, I would be cautious about relying on this behaviour. Nevertheless, I think it perfectly and appropriately addresses your intended purpose (revealing to the user what their browser is leaking).
You can use @john-kugelman 's awesome solution found above on non-RedHat systems by commenting out this line in his code:
. /etc/init.d/functions
Then, paste the below code at the end. Full disclosure: This is just a direct copy & paste of the relevant bits of the above mentioned file taken from Centos 7.
Tested on MacOS and Ubuntu 18.04.
BOOTUP=color
RES_COL=60
MOVE_TO_COL="echo -en \\033[${RES_COL}G"
SETCOLOR_SUCCESS="echo -en \\033[1;32m"
SETCOLOR_FAILURE="echo -en \\033[1;31m"
SETCOLOR_WARNING="echo -en \\033[1;33m"
SETCOLOR_NORMAL="echo -en \\033[0;39m"
echo_success() {
[ "$BOOTUP" = "color" ] && $MOVE_TO_COL
echo -n "["
[ "$BOOTUP" = "color" ] && $SETCOLOR_SUCCESS
echo -n $" OK "
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
echo -n "]"
echo -ne "\r"
return 0
}
echo_failure() {
[ "$BOOTUP" = "color" ] && $MOVE_TO_COL
echo -n "["
[ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
echo -n $"FAILED"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
echo -n "]"
echo -ne "\r"
return 1
}
echo_passed() {
[ "$BOOTUP" = "color" ] && $MOVE_TO_COL
echo -n "["
[ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
echo -n $"PASSED"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
echo -n "]"
echo -ne "\r"
return 1
}
echo_warning() {
[ "$BOOTUP" = "color" ] && $MOVE_TO_COL
echo -n "["
[ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
echo -n $"WARNING"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
echo -n "]"
echo -ne "\r"
return 1
}
If by up, you simply mean "the server is serving", then you could use cURL, and if you get a response than it's up.
I can't give you specific advice because I'm not a python programmer, however here is a link to pycurl http://pycurl.sourceforge.net/.
To augment T.J.'s answer, exceeding the min/max values generates an Invalid Date.
let maxDate = new Date(8640000000000000);_x000D_
let minDate = new Date(-8640000000000000);_x000D_
_x000D_
console.log(new Date(maxDate.getTime()).toString());_x000D_
console.log(new Date(maxDate.getTime() - 1).toString());_x000D_
console.log(new Date(maxDate.getTime() + 1).toString()); // Invalid Date_x000D_
_x000D_
console.log(new Date(minDate.getTime()).toString());_x000D_
console.log(new Date(minDate.getTime() + 1).toString());_x000D_
console.log(new Date(minDate.getTime() - 1).toString()); // Invalid Date
_x000D_
If you need the result to be timezone-aware, you can use the replace()
method of datetime
objects. This preserves timezone, so you can do
>>> from django.utils import timezone
>>> now = timezone.now()
>>> now
datetime.datetime(2018, 8, 30, 14, 15, 43, 726252, tzinfo=<UTC>)
>>> now.replace(hour=0, minute=0, second=0, microsecond=0)
datetime.datetime(2018, 8, 30, 0, 0, tzinfo=<UTC>)
Note that this returns a new datetime object -- now
remains unchanged.
$ line="these are words"
$ ll=($line)
$ declare -p ll # dump the array
declare -a ll='([0]="these" [1]="are" [2]="words")'
$ for w in ${ll[@]}; do echo $w; done
these
are
words
The built-in function system.time()
will do it.
Use like: system.time(result <- myfunction(with, arguments))
import java.util.Scanner;
public class LargestSmallestNumbers {
private static Scanner input;
public static void main(String[] args) {
int count,items;
int newnum =0 ;
int highest=0;
int lowest =0;
input = new Scanner(System.in);
System.out.println("How many numbers you want to enter?");
items = input.nextInt();
System.out.println("Enter "+items+" numbers: ");
for (count=0; count<items; count++){
newnum = input.nextInt();
if (highest<newnum)
highest=newnum;
if (lowest==0)
lowest=newnum;
else if (newnum<=lowest)
lowest=newnum;
}
System.out.println("The highest number is "+highest);
System.out.println("The lowest number is "+lowest);
}
}
On socket.io >=1.0, after the connect event has triggered:
var socket = io('localhost');
var id = socket.io.engine.id
You need the following permissions in your manifest file:
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
Then you can use the following in your activity class:
WifiManager wifiManager = (WifiManager) this.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
wifiManager.setWifiEnabled(true);
wifiManager.setWifiEnabled(false);
Use the following to check if it's enabled or not
boolean wifiEnabled = wifiManager.isWifiEnabled()
You'll find a nice tutorial on the subject on this site.
This operator allows you to determine the type of an object.
It returns a boolean
value.
For example
package test;
import java.util.Date;
import java.util.Map;
import java.util.HashMap;
public class instanceoftest
{
public static void main(String args[])
{
Map m=new HashMap();
System.out.println("Returns a boolean value "+(m instanceof Map));
System.out.println("Returns a boolean value "+(m instanceof HashMap));
System.out.println("Returns a boolean value "+(m instanceof Object));
System.out.println("Returns a boolean value "+(m instanceof Date));
}
}
the output is:
Returns a boolean value true
Returns a boolean value true
Returns a boolean value true
Returns a boolean value false
It depends on how the data was initially put into the column. Try either of these as one should work:
SELECT CONVERT(NVarChar(40), BLOBTextToExtract)
FROM [NavisionSQL$Customer];
Or if it was just varchar
...
SELECT CONVERT(VarChar(40), BLOBTextToExtract)
FROM [NavisionSQL$Customer];
I used this script to verify and test on SQL Server 2K8 R2:
DECLARE @blob VarBinary(MAX) = CONVERT(VarBinary(MAX), 'test');
-- show the binary representation
SELECT @blob;
-- this doesn't work
SELECT CONVERT(NVarChar(100), @blob);
-- but this does
SELECT CONVERT(VarChar(100), @blob);
If you are catching a browser back/forward button and don't want to navigate away, you can use:
window.addEventListener('popstate', function() {
if (window.location.origin !== 'http://example.com') {
// Do something if not your domain
} else if (window.location.href === 'http://example.com/sign-in/step-1') {
window.history.go(2); // Skip the already-signed-in pages if the forward button was clicked
} else if (window.location.href === 'http://example.com/sign-in/step-2') {
window.history.go(-2); // Skip the already-signed-in pages if the back button was clicked
} else {
// Let it do its thing
}
});
Otherwise, you can use the beforeunload event, but the message may or may not work cross-browser, and requires returning something that forces a built-in prompt.
It's more convenient to use a session, this way you don't have to remember to set headers each time:
session = requests.Session()
session.headers.update({'User-Agent': 'Custom user agent'})
session.get('https://httpbin.org/headers')
By default, session also manages cookies for you. In case you want to disable that, see this question.
first, set position: fixed
and left: 50%
, and second — now your start is a center and you can set new position with margin.
Do you execute the script from the command line on Linux or UNIX? In that case, you could just use
time ./script.py
For me, the issue's root cause on my Mac device was a version of the flock binary it was not expecting. Removing it from the path did the trick; probably a BSD vs GNU syntax issue.
No, unfortunately this will not be possible because ConverterParameter
is not a DependencyProperty
so you won't be able to use bindings
But perhaps you could cheat and use a MultiBinding
with IMultiValueConverter
to pass in the 2 Tag
properties.
I would like to answer this question in a different way where, user need not to do anything in controller
or Linq
expression. This way...
I have a ENUM
public enum AccessLevelEnum
{
/// <summary>
/// The user cannot access
/// </summary>
[EnumMember, Description("No Access")]
NoAccess = 0x0,
/// <summary>
/// The user can read the entire record in question
/// </summary>
[EnumMember, Description("Read Only")]
ReadOnly = 0x01,
/// <summary>
/// The user can read or write
/// </summary>
[EnumMember, Description("Read / Modify")]
ReadModify = 0x02,
/// <summary>
/// User can create new records, modify and read existing ones
/// </summary>
[EnumMember, Description("Create / Read / Modify")]
CreateReadModify = 0x04,
/// <summary>
/// User can read, write, or delete
/// </summary>
[EnumMember, Description("Create / Read / Modify / Delete")]
CreateReadModifyDelete = 0x08,
/*/// <summary>
/// User can read, write, or delete
/// </summary>
[EnumMember, Description("Create / Read / Modify / Delete / Verify / Edit Capture Value")]
CreateReadModifyDeleteVerify = 0x16*/
}
Now I canto simply create a dropdown
by using this enum
.
@Html.DropDownList("accessLevel",new SelectList(AccessLevelEnum.GetValues(typeof(AccessLevelEnum))),new { @class = "form-control" })
OR
@Html.DropDownListFor(m=>m.accessLevel,new SelectList(AccessLevelEnum.GetValues(typeof(AccessLevelEnum))),new { @class = "form-control" })
If you want to make a index selected then try this
@Html.DropDownListFor(m=>m.accessLevel,new SelectList(AccessLevelEnum.GetValues(typeof(AccessLevelEnum)) , AccessLevelEnum.NoAccess ),new { @class = "form-control" })
Here I have used AccessLevelEnum.NoAccess
as an extra parameter for default selecting the dropdown.
For me, it was that route that I was calling in my node server wasn't returning anything. Adding
return res.status(200).json({
message: 'success!',
response: 'success!'
});//
to the route I was calling resolved the issue.
Dynamically added items have to be added to the DOM... clone().append()
adds it to the DOM... which allows it to be selected via jquery.
Here's another way to work around the problem:
std::min(9, int(test::N));
(I think Crazy Eddie's answer correctly describes why the problem exists.)
In my case on macOS I solved it with:
brew link libtool
Take a look here in order to get started: http://instagram.com/developer/
and then in order to retrieve pictures by tag, look here: http://instagram.com/developer/endpoints/tags/
Getting tags from Instagram doesn't require OAuth, so you can make the calls via these URLs:
GET IMAGES
https://api.instagram.com/v1/tags/{tag-name}/media/recent?access_token={TOKEN}
SEARCH
https://api.instagram.com/v1/tags/search?q={tag-query}&access_token={TOKEN}
TAG INFO
https://api.instagram.com/v1/tags/{tag-name}?access_token={TOKEN}
Sybase IQ:
describe table_name;
Both options are already mentioned in the existing answers:
from django.db.models import Q
q1 = User.objects.filter(Q(income__gte=5000) | Q(income__isnull=True))
and
q2 = User.objects.filter(income__gte=5000) | User.objects.filter(income__isnull=True)
However, there seems to be some confusion regarding which one is to prefer.
The point is that they are identical on the SQL level, so feel free to pick whichever you like!
The Django ORM Cookbook talks in some detail about this, here is the relevant part:
queryset = User.objects.filter(
first_name__startswith='R'
) | User.objects.filter(
last_name__startswith='D'
)
leads to
In [5]: str(queryset.query)
Out[5]: 'SELECT "auth_user"."id", "auth_user"."password", "auth_user"."last_login",
"auth_user"."is_superuser", "auth_user"."username", "auth_user"."first_name",
"auth_user"."last_name", "auth_user"."email", "auth_user"."is_staff",
"auth_user"."is_active", "auth_user"."date_joined" FROM "auth_user"
WHERE ("auth_user"."first_name"::text LIKE R% OR "auth_user"."last_name"::text LIKE D%)'
and
qs = User.objects.filter(Q(first_name__startswith='R') | Q(last_name__startswith='D'))
leads to
In [9]: str(qs.query)
Out[9]: 'SELECT "auth_user"."id", "auth_user"."password", "auth_user"."last_login",
"auth_user"."is_superuser", "auth_user"."username", "auth_user"."first_name",
"auth_user"."last_name", "auth_user"."email", "auth_user"."is_staff",
"auth_user"."is_active", "auth_user"."date_joined" FROM "auth_user"
WHERE ("auth_user"."first_name"::text LIKE R% OR "auth_user"."last_name"::text LIKE D%)'
source: django-orm-cookbook
select * from yourtable where created < now() and created > '2011-04-25 04:00:00'
You can use code like this:
char *MyFunction(some arguments...)
{
char *pointer = malloc(size for the new array);
if (!pointer)
An error occurred, abort or do something about the error.
return pointer; // Return address of memory to the caller.
}
When you do this, the memory should later be freed, by passing the address to free.
There are other options. A routine might return a pointer to an array (or portion of an array) that is part of some existing structure. The caller might pass an array, and the routine merely writes into the array, rather than allocating space for a new array.
jQuery now supports .data();
, so if you have
<div id='author' data-content='stuff!'>
use
var author = $('#author').data("content"); // author = 'stuff!'
Batch file for setting a new dns server
@echo off
rem usage: setdns <dnsserver> <interface>
rem default dsnserver is dhcp
rem default interface is Wi-Fi
set dnsserver="%1"
if %dnsserver%=="" set dnsserver="dhcp"
set interface="%2"
if %interface%=="" set interface="Wi-Fi"
echo Showing current DNS setting for interface a%interface%
netsh interface ipv4 show dnsserver %interface%
echo Changing dnsserver on interface %interface% to %dnsserver%
if %dnsserver% == "dhcp" netsh interface ipv4 set dnsserver %interface% %dnsserver%
if NOT %dnsserver% == "dhcp" netsh interface ipv4 add dnsserver %interface% address=%dnsserver% index=1
echo Showing new DNS setting for interface %interface%
netsh interface ipv4 show dnsserver %interface%
To delete the complete contents including the folder structure use
get-childitem $dest -recurse | foreach ($_) {remove-item $_.fullname -recurse}
The -recurse
added to remove-item
ensures interactive prompts are disabled.
def month_sub(year, month, sub_month):
result_month = 0
result_year = 0
if month > (sub_month % 12):
result_month = month - (sub_month % 12)
result_year = year - (sub_month / 12)
else:
result_month = 12 - (sub_month % 12) + month
result_year = year - (sub_month / 12 + 1)
return (result_year, result_month)
>>> month_sub(2015, 7, 1)
(2015, 6)
>>> month_sub(2015, 7, -1)
(2015, 8)
>>> month_sub(2015, 7, 13)
(2014, 6)
>>> month_sub(2015, 7, -14)
(2016, 9)
Don't forget, for strings, you can always use:
String.IsNullOrEmpty(str)
Instead of:
str==null || str==""
If your question is about IIS(or other server) configuration - yes, it's possible. All you need is to create ports mapping under your Default Site or Virtual Directory and assign specific ports to the site you need. For example it is sometimes very useful for web services, when default port is assigned to some UI front-end and you want to assign service to the same address but with different port.
In Vue2 be aware that you can access this.$refs.uniqueName only after mounting the component.
Asynchronous function in line 38:
$( ".class#id" ).hover(function() {
Your javascript
});
You maybe wanted to do the following:
foreach($user->data as $mydata)
{
echo $mydata->name . "\n";
foreach($mydata->values as $values)
{
echo $values->value . "\n";
}
}
This should do the trick:
df[- grep("REVERSE", df$Name),]
Or a safer version would be:
df[!grepl("REVERSE", df$Name),]
I also found those: http://xceed.com/ProThemes_WPF_Features.html
And of course there are many implementations of Metro UI for WPF: https://github.com/MahApps/MahApps.Metro http://mosaicproject.codeplex.com/
If there is a space in the beginning of the tns name define in file tnsnames.ora
, then some of the the connectors like odbc may give this error. Remove space character in the beginning.
You can access the array index directly:
var csv = 'zero,one,two,three';
csv.split(',')[0]; //result: zero
csv.split(',')[3]; //result: three
In ./package.json
:
"jest": {
"setupFiles": [
"<rootDir>/jest/setEnvVars.js"
]
}
In ./jest/setEnvVars.js
:
process.env.SOME_VAR = 'value';
Tip: If you're using setValue
but not providing every property on the form you'll get an error:
Must supply a value for form control with name: 'stateOrProvince'.
So you may be tempted to use patchValue
, but this can be dangerous if you're trying to update a whole form. I have an address
that may not have stateOrProvince
or stateCd
depending upon whether it is US or worldwide.
Instead you can update like this - which will use the nulls as defaults:
this.form.setValue( { stateOrProvince: null, stateCd: null, ...address } );
a thorough reading of jQuery AJAX cross domain seems to indicate that the server you are querying is returning a header string that prohibits cross-domain json requests. Check the headers of the response you are receiving to see if the Access-Control-Allow-Origin header is set, and whether its value restricts cross-domain requests to the local host.
I have found that the simplest way to do this is to set onClick for each button in the xml
<Button
android:id="@+id/vrHelp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/ic_menu_help"
android:onClick="helpB" />
and then you can do a switch case like this
public void helpB(View v) {
Button clickedButton = (Button) v;
switch (clickedButton.getId()) {
case R.id.vrHelp:
dosomething...
break;
case R.id.coHelp:
dosomething...
break;
case R.id.ksHelp:
dosomething...
break;
case R.id.uHelp:
dosomething...
break;
case R.id.pHelp:
dosomething...
break;
}
}
Always : If you always want vertical scrollbar, use overflow-y: scroll;
<div style="overflow-y: scroll;">
......
</div>
When needed: If you only want vertical scrollbar when needed, use overflow-y: auto;
(You need to specify a height in this case)
<div style="overflow-y: auto; height:150px; ">
....
</div>
According to the source code of codeigniter, the function set
is defined as:
public function set($key, $value = '', $escape = TRUE)
{
$key = $this->_object_to_array($key);
if ( ! is_array($key))
{
$key = array($key => $value);
}
foreach ($key as $k => $v)
{
if ($escape === FALSE)
{
$this->ar_set[$this->_protect_identifiers($k)] = $v;
}
else
{
$this->ar_set[$this->_protect_identifiers($k, FALSE, TRUE)] = $this->escape($v);
}
}
return $this;
}
Apparently, if $key
is an array, codeigniter will simply ignore the second parameter $value
, but the third parameter $escape
will still work throughout the iteration of $key
, so in this situation, the following codes work (using the chain method):
$this->db->set(array(
'name' => $name ,
'email' => $email,
'time' => 'NOW()'), '', FALSE)->insert('mytable');
However, this will unescape all the data, so you can break your data into two parts:
$this->db->set(array(
'name' => $name ,
'email' => $email))->set(array('time' => 'NOW()'), '', FALSE)->insert('mytable');
I tried a couple of answers mentioned in this link, but couldn't figure out how to tell Jenkins about the user-selected branch. As mentioned in my previous comment in above thread, I had left the branch selector field empty.
But, during further investigations, I found another way to do the same thing - https://wiki.jenkins-ci.org/display/JENKINS/Git+Parameter+Plugin I found this method was a lot simpler, and had less things to configure!
Here's what I configured -
Added the following values:
Then in the git SCM section of the job I added the same value mentioned in the 'Name' section, as if it were an environment variable. (If you read the help for this git parameter plugin carefully, you will realize this)
After this I just ran the build, chose my branch(Jenkins checks out this branch before building) and it completed the build successfully, AND by choosing the branch that I had specified.
I've made basic black launch screens that will make the app scale properly on the iPhone 6 and iPhone 6+:
If you already have a LaunchImage in your .xcassett, open it, switch to the third tab in the right menu in Xcode and tick the iOS 8.0 iPhone images to add them to the existing set. Then drag the images over:
You could do this:
String strz[] = strs.toArray(String[strs.size()]);
String theFirstOne = strz[0];
The javadoc for Collection gives the following caveat wrt ordering of the elements of the array:
If this collection makes any guarantees as to what order its elements are returned by its iterator, this method must return the elements in the same order.
I faced same issue but now i am happy to resolve this issue.
npm i core-js
index.js
file.
import core-js
We have similar situation right now and as of this answer, I am using laravel 5.6 release.
I will not use your example in the question but mine, because it's related though.
I have route like this:
Route::name('your.name.here')->get('/your/uri', 'YourController@someMethod');
Then in your controller method, make sure you include
use Illuminate\Http\Request;
and this should be above your controller, most likely a default, if generated using php artisan
, now to get variable from the url it should look like this:
public function someMethod(Request $request)
{
$foo = $request->input("start");
$bar = $request->input("limit");
// some codes here
}
Regardless of the HTTP verb, the input() method may be used to retrieve user input.
https://laravel.com/docs/5.6/requests#retrieving-input
Hope this help.
def querySet_to_list(qs):
"""
this will return python list<dict>
"""
return [dict(q) for q in qs]
def get_answer_by_something(request):
ss = Answer.objects.filter(something).values()
querySet_to_list(ss) # python list return.(json-able)
this code convert django queryset to python list
Since you are asking about .NET, you should change the parameter from Long
to Integer
. .NET's Integer is 32-bit. (Classic VB's integer was only 16-bit.)
Declare Sub Sleep Lib "kernel32.dll" (ByVal Milliseconds As Integer)
Really though, the managed method isn't difficult...
System.Threading.Thread.CurrentThread.Sleep(5000)
Be careful when you do this. In a forms application, you block the message pump and what not, making your program to appear to have hanged. Rarely is sleep
a good idea.
In this case, no need for a directive. This does the job :
<button ng-click="count = count + 1" ng-init="count=0">
Increment
</button>
<span>
count: {{count}}
</span>
Minizip does have an example programs to demonstrate its usage - the files are called minizip.c and miniunz.c.
Update: I had a few minutes so I whipped up this quick, bare bones example for you. It's very smelly C, and I wouldn't use it without major improvements. Hopefully it's enough to get you going for now.
// uzip.c - Simple example of using the minizip API.
// Do not use this code as is! It is educational only, and probably
// riddled with errors and leaks!
#include <stdio.h>
#include <string.h>
#include "unzip.h"
#define dir_delimter '/'
#define MAX_FILENAME 512
#define READ_SIZE 8192
int main( int argc, char **argv )
{
if ( argc < 2 )
{
printf( "usage:\n%s {file to unzip}\n", argv[ 0 ] );
return -1;
}
// Open the zip file
unzFile *zipfile = unzOpen( argv[ 1 ] );
if ( zipfile == NULL )
{
printf( "%s: not found\n" );
return -1;
}
// Get info about the zip file
unz_global_info global_info;
if ( unzGetGlobalInfo( zipfile, &global_info ) != UNZ_OK )
{
printf( "could not read file global info\n" );
unzClose( zipfile );
return -1;
}
// Buffer to hold data read from the zip file.
char read_buffer[ READ_SIZE ];
// Loop to extract all files
uLong i;
for ( i = 0; i < global_info.number_entry; ++i )
{
// Get info about current file.
unz_file_info file_info;
char filename[ MAX_FILENAME ];
if ( unzGetCurrentFileInfo(
zipfile,
&file_info,
filename,
MAX_FILENAME,
NULL, 0, NULL, 0 ) != UNZ_OK )
{
printf( "could not read file info\n" );
unzClose( zipfile );
return -1;
}
// Check if this entry is a directory or file.
const size_t filename_length = strlen( filename );
if ( filename[ filename_length-1 ] == dir_delimter )
{
// Entry is a directory, so create it.
printf( "dir:%s\n", filename );
mkdir( filename );
}
else
{
// Entry is a file, so extract it.
printf( "file:%s\n", filename );
if ( unzOpenCurrentFile( zipfile ) != UNZ_OK )
{
printf( "could not open file\n" );
unzClose( zipfile );
return -1;
}
// Open a file to write out the data.
FILE *out = fopen( filename, "wb" );
if ( out == NULL )
{
printf( "could not open destination file\n" );
unzCloseCurrentFile( zipfile );
unzClose( zipfile );
return -1;
}
int error = UNZ_OK;
do
{
error = unzReadCurrentFile( zipfile, read_buffer, READ_SIZE );
if ( error < 0 )
{
printf( "error %d\n", error );
unzCloseCurrentFile( zipfile );
unzClose( zipfile );
return -1;
}
// Write data to file.
if ( error > 0 )
{
fwrite( read_buffer, error, 1, out ); // You should check return of fwrite...
}
} while ( error > 0 );
fclose( out );
}
unzCloseCurrentFile( zipfile );
// Go the the next entry listed in the zip file.
if ( ( i+1 ) < global_info.number_entry )
{
if ( unzGoToNextFile( zipfile ) != UNZ_OK )
{
printf( "cound not read next file\n" );
unzClose( zipfile );
return -1;
}
}
}
unzClose( zipfile );
return 0;
}
I built and tested it with MinGW/MSYS on Windows like this:
contrib/minizip/$ gcc -I../.. -o unzip uzip.c unzip.c ioapi.c ../../libz.a
contrib/minizip/$ ./unzip.exe /j/zlib-125.zip
For several cases, or even just a few cases involving a lot of criteria, consider using a switch.
switch( true ){
case ( !empty($youtube) && !empty($link) ):{
// Nothing is empty...
break;
}
case ( !empty($youtube) && empty($link) ):{
// One is empty...
break;
}
case ( empty($youtube) && !empty($link) ):{
// The other is empty...
break;
}
case ( empty($youtube) && empty($link) ):{
// Everything is empty
break;
}
default:{
// Even if you don't expect ever to use it, it's a good idea to ALWAYS have a default.
// That way if you change it, or miss a case, you have some default handler.
break;
}
}
If you have multiple cases that require the same action, you can stack them and omit the break; to flowthrough. Just maybe put a comment like /*Flowing through*/ so you're explicit about doing it on purpose.
Note that the { } around the cases aren't required, but they are nice for readability and code folding.
More about switch: http://php.net/manual/en/control-structures.switch.php
$1
, $2
, $3
, ... are the positional parameters."$@"
is an array-like construct of all positional parameters, {$1, $2, $3 ...}
."$*"
is the IFS expansion of all positional parameters, $1 $2 $3 ...
.$#
is the number of positional parameters.$-
current options set for the shell.$$
pid of the current shell (not subshell).$_
most recent parameter (or the abs path of the command to start the current shell immediately after startup).$IFS
is the (input) field separator.$?
is the most recent foreground pipeline exit status.$!
is the PID of the most recent background command.$0
is the name of the shell or shell script.Most of the above can be found under Special Parameters in the Bash Reference Manual. There are all the environment variables set by the shell.
For a comprehensive index, please see the Reference Manual Variable Index.
There is no direct way (i.e. using printf
or another standard library function) to print it. You will have to write your own function.
/* This code has an obvious bug and another non-obvious one :) */
void printbits(unsigned char v) {
for (; v; v >>= 1) putchar('0' + (v & 1));
}
If you're using terminal, you can use control codes to print out bytes in natural order:
void printbits(unsigned char v) {
printf("%*s", (int)ceil(log2(v)) + 1, "");
for (; v; v >>= 1) printf("\x1b[2D%c",'0' + (v & 1));
}
Both attributes have been added to Bootstrap CDN to implement Subresource Integrity.
Subresource Integrity defines a mechanism by which user agents may verify that a fetched resource has been delivered without unexpected manipulation Reference
Integrity attribute is to allow the browser to check the file source to ensure that the code is never loaded if the source has been manipulated.
Crossorigin attribute is present when a request is loaded using 'CORS' which is now a requirement of SRI checking when not loaded from the 'same-origin'. More info on crossorigin
Also, I had this issue using Laravel, but fixed by changing my database schema to allow "null" inputs on a table where I plan to collect the information from separate forms:
public function up()
{
Schema::create('trip_table', function (Blueprint $table) {
$table->increments('trip_id')->unsigned();
$table->time('est_start');
$table->time('est_end');
$table->time('act_start')->nullable();
$table->time('act_end')->nullable();
$table->date('Trip_Date');
$table->integer('Starting_Miles')->nullable();
$table->integer('Ending_Miles')->nullable();
$table->string('Bus_id')->nullable();
$table->string('Event');
$table->string('Desc')->nullable();
$table->string('Destination');
$table->string('Departure_location');
$table->text('Drivers_Comment')->nullable();
$table->string('Requester')->nullable();
$table->integer('driver_id')->nullable();
$table->timestamps();
});
}
The ->nullable(); Added to the end. This is using Laravel. Hope this helps someone, thanks!
Regex is also an option:
private string[] SplitStringByLineFeed(string inpString)
{
string[] locResult = Regex.Split(inpString, "[\r\n]+");
return locResult;
}
ps axuwww | grep java | grep -v grep
The above will
(btw, this example is not the effective one, but simple to remember) ;)
you can pipe the above to another commands, for example:
ps axuwww | grep java | grep -v grep | sed '.....' | while read something
do
something_another $something
done
etc...
Without access to the type (and no "InternalsVisibleTo" etc) you would have to use reflection. But a better question would be: should you be accessing this data? It isn't part of the public type contract... it sounds to me like it is intended to be treated as an opaque object (for their purposes, not yours).
You've described it as a public instance field; to get this via reflection:
object obj = ...
string value = (string)obj.GetType().GetField("test").GetValue(obj);
If it is actually a property (not a field):
string value = (string)obj.GetType().GetProperty("test").GetValue(obj,null);
If it is non-public, you'll need to use the BindingFlags
overload of GetField
/GetProperty
.
Important aside: be careful with reflection like this; the implementation could change in the next version (breaking your code), or it could be obfuscated (breaking your code), or you might not have enough "trust" (breaking your code). Are you spotting the pattern?
Save your files as ~/.config/fish/functions/{some_function_name}.fish
and they should get autoloaded when you start fish.
Your Call works if it were a Table Valued Function. Since its a scalar function, you need to call it like:
SELECT dbo.fn_HomePageSlider(9, 3025) AS MyResult
onClick="javascript:this.form.submit();">
this
in div onclick don't have attribute form
, you may try this.parentNode.submit()
or document.forms[0].submit()
will do
Also, onClick
, should be onclick
, some browsers don't work with onClick
I had trouble binding a value with any of the symbols in AngularJS 1.6. I did not get any value at all, only undefined
, even though I did it the exact same way as other bindings in the same file that did work.
Problem was: my variable name had an underscore.
This fails:
bindings: { import_nr: '='}
This works:
bindings: { importnr: '='}
(Not completely related to the original question, but that was one of the top search results when I looked, so hopefully this helps someone with the same problem.)
For those using Kotlin DSL, you can do:
tasks {
named<Test>("test") {
testLogging.showStandardStreams = true
}
}
You can use newer OpenCV python interface (if I'm not mistaken it is available since OpenCV 2.2). It natively uses numpy arrays:
import cv2
im = cv2.imread("abc.tiff",mode='RGB')
print type(im)
result:
<type 'numpy.ndarray'>
BlobBuilder has long been deprecated by the Blob object. Compare the code in Dennis' answer — where BlobBuilder is used — with the code below:
function arrayBufferGen(str, cb) {
var b = new Blob([str]);
var f = new FileReader();
f.onload = function(e) {
cb(e.target.result);
}
f.readAsArrayBuffer(b);
}
Note how much cleaner and less bloated this is compared to the deprecated method... Yeah, this is definitely something to consider here.
If any doubt in this code, please ask your questions(Here for gmail Port number is 587)
// code to Send Mail
// Add following Lines in your web.config file
// <system.net>
// <mailSettings>
// <smtp>
// <network host="smtp.gmail.com" port="587" userName="[email protected]" password="yyy" defaultCredentials="false"/>
// </smtp>
// </mailSettings>
// </system.net>
// Add below lines in your config file inside appsetting tag <appsetting></appsetting>
// <add key="emailFromAddress" value="[email protected]"/>
// <add key="emailToAddress" value="[email protected]"/>
// <add key="EmailSsl" value="true"/>
// Namespace Used
using System.Net.Mail;
public static bool SendingMail(string subject, string content)
{
// getting the values from config file through c#
string fromEmail = ConfigurationSettings.AppSettings["emailFromAddress"];
string mailid = ConfigurationSettings.AppSettings["emailToAddress"];
bool useSSL;
if (ConfigurationSettings.AppSettings["EmailSsl"] == "true")
{
useSSL = true;
}
else
{
useSSL = false;
}
SmtpClient emailClient;
MailMessage message;
message = new MailMessage();
message.From = new MailAddress(fromEmail);
message.ReplyTo = new MailAddress(fromEmail);
if (SetMailAddressCollection(message.To, mailid))
{
message.Subject = subject;
message.Body = content;
message.IsBodyHtml = true;
emailClient = new SmtpClient();
emailClient.EnableSsl = useSSL;
emailClient.Send(message);
}
return true;
}
// if you are sending mail in group
private static bool SetMailAddressCollection(MailAddressCollection toAddresses, string mailId)
{
bool successfulAddressCreation = true;
toAddresses.Add(new MailAddress(mailId));
return successfulAddressCreation;
}
You cannot put primitive types into collections. However, you can declare them using their corresponding object wrappers and still add the primitive values, as long as the boxing allows you.
You can download the wheel corresponding to your configuration here ("Pillow-4.1.1-cp36-cp36m-win_amd64.whl" in your case) and install it with:
pip install some-package.whl
If you have problem to install the wheel read this answer
this code seems to have address the issue for me. it comes for a streaming class, ergo some of the nomenclature.
''' <summary> Reference to the awaiting task. </summary>
''' <value> The awaiting task. </value>
Protected ReadOnly Property AwaitingTask As Threading.Tasks.Task
''' <summary> Reference to the Action task; this task status undergoes changes. </summary>
Protected ReadOnly Property ActionTask As Threading.Tasks.Task
''' <summary> Reference to the cancellation source. </summary>
Protected ReadOnly Property TaskCancellationSource As Threading.CancellationTokenSource
''' <summary> Starts the action task. </summary>
''' <param name="taskAction"> The action to stream the entities, which calls
''' <see cref="StreamEvents(Of T)(IEnumerable(Of T), IEnumerable(Of Date), Integer, String)"/>. </param>
''' <returns> The awaiting task. </returns>
Private Async Function AsyncAwaitTask(ByVal taskAction As Action) As Task
Me._ActionTask = Task.Run(taskAction)
Await Me.ActionTask ' Task.Run(streamEntitiesAction)
Try
Me.ActionTask?.Wait()
Me.OnStreamTaskEnded(If(Me.ActionTask Is Nothing, TaskStatus.RanToCompletion, Me.ActionTask.Status))
Catch ex As AggregateException
Me.OnExceptionOccurred(ex)
Finally
Me.TaskCancellationSource.Dispose()
End Try
End Function
''' <summary> Starts Streaming the events. </summary>
''' <exception cref="InvalidOperationException"> Thrown when the requested operation is invalid. </exception>
''' <param name="bucketKey"> The bucket key. </param>
''' <param name="timeout"> The timeout. </param>
''' <param name="streamEntitiesAction"> The action to stream the entities, which calls
''' <see cref="StreamEvents(Of T)(IEnumerable(Of T), IEnumerable(Of Date), Integer, String)"/>. </param>
Public Overridable Sub StartStreamEvents(ByVal bucketKey As String, ByVal timeout As TimeSpan, ByVal streamEntitiesAction As Action)
If Me.IsTaskActive Then
Throw New InvalidOperationException($"Stream task is {Me.ActionTask.Status}")
Else
Me._TaskCancellationSource = New Threading.CancellationTokenSource
Me.TaskCancellationSource.Token.Register(AddressOf Me.StreamTaskCanceled)
Me.TaskCancellationSource.CancelAfter(timeout)
' the action class is created withing the Async/Await function
Me._AwaitingTask = Me.AsyncAwaitTask(streamEntitiesAction)
End If
End Sub
For current Symfony version (as of writing this answer it's Symfony 4.1) do not directly access the service container as done in some of the other answers.
Instead (unless you don't use the standard services configuration), inject the request object by type-hinting.
<?php
namespace App\Service;
use Symfony\Component\HttpFoundation\RequestStack;
/**
* The YourService class provides a method for retrieving the base URL.
*
* @package App\Service
*/
class YourService
{
/**
* @var string
*/
protected $baseUrl;
/**
* YourService constructor.
*
* @param \Symfony\Component\HttpFoundation\RequestStack $requestStack
*/
public function __construct(RequestStack $requestStack)
{
$this->baseUrl = $requestStack->getCurrentRequest()->getSchemeAndHttpHost();
}
/**
* Returns the current base URL.
*
* @return string
*/
public function getBaseUrl(): string
{
return $this->baseUrl;
}
}
See also official Symfony docs about how to retrieve the current request object.
You're getting errors because you're attempting to read post variables that haven't been set, they only get set on form submission. Wrap your php code at the bottom in an
if ($_SERVER['REQUEST_METHOD'] === 'POST') { ... }
Also, your code is ripe for SQL injection. At the very least use mysql_real_escape_string
on the post vars before using them in SQL queries. mysql_real_escape_string
is not good enough for a production site, but should score you extra points in class.
I had the same issue as you, what I did is change to
<script type="application/javascript" src="bootstrap-wysiwyg.js"></script>
It works for me.
tree -L 2 -u -g -p -d
Prints the directory tree in a pretty format up to depth 2 (-L 2). Print user (-u) and group (-g) and permissions (-p). Print only directories (-d). tree has a lot of other useful options.
Why don't you take a look to this answer
Including javascript files inside javascript files
In short you can load the script file with AJAX or put a script tag on the HTML to include it( before the script that uses the functions of the other script). The link I posted is a great answer and has multiple examples and explanations of both methods.
Extend Code for Show Selected Sheet(s) [ one or more sheets].
Sub Show_SelectSheet()
For Each xSheet In ThisWorkbook.Worksheets
For Each xSelectSheet In ActiveWindow.SelectedSheets
If xSheet.Name = xSelectSheet.Name Then
'=== Show Selected Sheet ===
GoTo xNext_SelectSheet
End If
Next xSelectSheet
xSheet.Visible = False
xNext_SelectSheet:
Next xSheet
MsgBox "Show Selected Sheet(s) Completed !!!"
end sub