The NVARCHAR2 datatype was introduced by Oracle for databases that want to use Unicode for some columns while keeping another character set for the rest of the database (which uses VARCHAR2). The NVARCHAR2 is a Unicode-only datatype.
One reason you may want to use NVARCHAR2 might be that your DB uses a non-Unicode character set and you still want to be able to store Unicode data for some columns without changing the primary character set. Another reason might be that you want to use two Unicode character set (AL32UTF8 for data that comes mostly from western Europe, AL16UTF16 for data that comes mostly from Asia for example) because different character sets won't store the same data equally efficiently.
Both columns in your example (Unicode VARCHAR2(10 CHAR)
and NVARCHAR2(10)
) would be able to store the same data, however the byte storage will be different. Some strings may be stored more efficiently in one or the other.
Note also that some features won't work with NVARCHAR2, see this SO question:
This was happening in the production environment for me.
rm /vendor/bundle
then
bundle install --deployment
resolved the issue.
To access the elements in the array, use array notation: $product['prodname']
$product->prodname
is object notation, which can only be used to access object attributes and methods.
Here's a simple script that wraps up using the dd
approach mentioned here:
#!/usr/bin/env bash
function show_help()
{
IT="
extracts characters X to Y from stdin or FILE
usage: X Y {FILE}
e.g.
2 10 /tmp/it => extract chars 2-10 from /tmp/it
EOF
"
echo "$IT"
exit
}
if [ "$1" == "help" ]
then
show_help
fi
if [ -z "$1" ]
then
show_help
fi
FROM=$1
TO=$2
COUNT=`expr $TO - $FROM + 1`
if [ -z "$3" ]
then
dd skip=$FROM count=$COUNT bs=1 2>/dev/null
else
dd skip=$FROM count=$COUNT bs=1 if=$3 2>/dev/null
fi
Call $watch
with true
as the third argument:
$scope.$watch('form', function(newVal, oldVal){
console.log('changed');
}, true);
By default when comparing two complex objects in JavaScript, they will be checked for "reference" equality, which asks if the two objects refer to the same thing, rather than "value" equality, which checks if the values of all the properties of those objects are equal.
Per the Angular documentation, the third parameter is for objectEquality
:
When
objectEquality == true
, inequality of the watchExpression is determined according to theangular.equals
function. To save the value of the object for later comparison, theangular.copy
function is used. This therefore means that watching complex objects will have adverse memory and performance implications.
Running ASP.NET Core 2.1 behind a Traefik reverse Proxy on Ubuntu, I need to set its gateway IP in KnownProxies
after installing the official Microsoft.AspNetCore.HttpOverrides
package
var forwardedOptions = new ForwardedHeadersOptions {
ForwardedHeaders = ForwardedHeaders.XForwardedFor,
};
forwardedOptions.KnownProxies.Add(IPAddress.Parse("192.168.3.1"));
app.UseForwardedHeaders(forwardedOptions);
According to the documentation, this is required if the reverse proxy is not running on localhost. The docker-compose.yml
of Traefik has assigned a static IP address:
networks:
my-docker-network:
ipv4_address: 192.168.3.2
Alternatively, it should be enough to make sure a known network is defined here to specify its gateway in .NET Core.
string[] abcd = obj.show();
Response.Write(string.join("</br>", abcd));
You can do it using $.ajax or $.post
Using $.ajax :
$.ajax({
type: 'post',
url: 'superman',
data: {
'field1': 'hello',
'field2': 'hello1'
},
success: function (response) {
alert(response.status);
},
error: function () {
alert("error");
}
});
Using $.post :
$.post('superman',
{
'field1': 'hello',
'field2': 'hello1'
},
function (response, status) {
alert(response.status);
}
);
Change the order you're including your scripts (jQuery first):
<script src="http://ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
<script type="text/javascript" src="./javascript.js"></script>
<script
src="http://maps.googleapis.com/maps/api/js?key=YOUR_APIKEY&sensor=false">
</script>
To all the great answers, I want to add a small detail:
If You write plugins (e.g. DLLs or .so libraries to be loaded by a CAD system), then static is a life saver that avoids name collisions like this one:
Even worse: Step 3 may behave differently depending on compiler optimization, plugin load mechanism, etc.
I had this issue once with two helper functions (same name, different behaviour) in two plugins. Declaring them static solved the problem.
You can use:
grep -l Dansk * | xargs grep -l Norsk | xargs grep -l Svenska
If you want also to find in hidden files:
grep -l Dansk .* | xargs grep -l Norsk | xargs grep -l Svenska
I had the same problem. Check out the comment in https://gist.github.com/khernyo/4226923#comment-812526
It says:
for gradle android plugin v0.3 use "com.android.build.gradle.tasks.PackageApplication"
That should fix your problem.
Line numbers are not on by default. To turn on line numbers just go to Tools -> Options -> Text Editor -> All Languages -> General -> Display and check Line numbers:
http://blogs.msdn.com/blogfiles/zainnab/WindowsLiveWriter/TurnonLineNumbers_A5E7/image_thumb.png
Just clear the plots and try executing the code again...It worked for me
You never give any value to your strings in main
so they are empty, and thus obviously the function returns an empty string.
Replace:
string str1, str2, str3;
with:
string str1 = "the dog jumped over the fence";
string str2 = "the";
string str3 = "that";
Also, you have several problems in your replaceSubstring
function:
int index = s1.find(s2, 0);
s1.replace(index, s2.length(), s3);
std::string::find
returns a std::string::size_type
(aka. size_t
) not an int
. Two differences: size_t
is unsigned, and it's not necessarily the same size as an int
depending on your platform (eg. on 64 bits Linux or Windows size_t
is unsigned 64 bits while int
is signed 32 bits).s2
is not part of s1
? I'll leave it up to you to find how to fix that. Hint: std::string::npos
;)I suggest you to use LinkedHashSet
most of the time, because it has better performance overall):
HashMap
, because the most of the time we use Set structures for iterating.Performance tests:
------------- TreeSet -------------
size add contains iterate
10 746 173 89
100 501 264 68
1000 714 410 69
10000 1975 552 69
------------- HashSet -------------
size add contains iterate
10 308 91 94
100 178 75 73
1000 216 110 72
10000 711 215 100
---------- LinkedHashSet ----------
size add contains iterate
10 350 65 83
100 270 74 55
1000 303 111 54
10000 1615 256 58
You can see source test page here: The Final Performance Testing Example
This is the best way, I know of to create dynamic variables in python.
my_dict = {}
x = "Buffalo"
my_dict[x] = 4
I found a similar, but not the same question here Creating dynamically named variables from user input
Right clicking a specific folder can help ease your pain than just by typing the whole directory. Right click + clicking s or Right click and then click "GIT bash here"
Hope this seems helpful
I was kind of curious about this too, so I just put together a little sample code where you can see what it is doing:
try {
throw new NullPointerException();
}
catch (NullPointerException e) {
System.out.println(e);
}
try {
throw new IOException();
}
catch (IOException e) {
e.printStackTrace();
}
System.exit(0);
Calling println(e)
:
java.lang.NullPointerException
Calling e.printStackTrace()
:
java.io.IOException at package.Test.main(Test.java:74)
Not difficult, check this.
<button @click="disabled = !disabled">Toggle Enable</button>
<input type="text" id="name" class="form-control" name="name" v-model="form.name" :disabled="disabled">
PhpUnit is an amazing library, but this specific point is a bit frustrating. This is why we can use the turbotesting-php opensource library which has a very convenient assertion method to help us testing exceptions. It is found here:
And to use it, we would simply do the following:
AssertUtils::throwsException(function(){
// Some code that must throw an exception here
}, '/expected error message/');
If the code we type inside the anonymous function does not throw an exception, an exception will be thrown.
If the code we type inside the anonymous function throws an exception, but its message does not match the expected regexp, an exception will also be thrown.
const
variable declarations/definitions (C++ only)For people coming from C it might be a surprise that in C++ global const
variables have internal (or static) linkage. In C this was not the case, as all global variables are implicitly extern
(i.e. when the static
keyword is missing).
Example:
// file1.cpp
const int test = 5; // in C++ same as "static const int test = 5"
int test2 = 5;
// file2.cpp
extern const int test;
extern int test2;
void foo()
{
int x = test; // linker error in C++ , no error in C
int y = test2; // no problem
}
correct would be to use a header file and include it in file2.cpp and file1.cpp
extern const int test;
extern int test2;
Alternatively one could declare the const
variable in file1.cpp with explicit extern
Old post but as you said "why is it not using the correct certificate" I would like to offer an way to find out which SSL certificate is used for SMTP (see here) which required openssl:
openssl s_client -connect exchange01.int.contoso.com:25 -starttls smtp
This will outline the used SSL certificate for the SMTP service. Based on what you see here you can replace the wrong certificate (like you already did) with a correct one (or trust the certificate manually).
def strip_end(text, suffix):
if suffix and text.endswith(suffix):
return text[:-len(suffix)]
return text
I have users who have not been completing all required data.
<cfset unloadCheck=0>//a ColdFusion precheck in my page generation to see if unload check is needed
var erMsg="";
$(document).ready(function(){
<cfif q.myData eq "">
<cfset unloadCheck=1>
$("#myInput").change(function(){
verify(); //function elsewhere that checks all fields and populates erMsg with error messages for any fail(s)
if(erMsg=="") window.onbeforeunload = null; //all OK so let them pass
else window.onbeforeunload = confirmExit(); //borrowed from Jantimon above;
});
});
<cfif unloadCheck><!--- if any are outstanding, set the error message and the unload alert --->
verify();
window.onbeforeunload = confirmExit;
function confirmExit() {return "Data is incomplete for this Case:"+erMsg;}
</cfif>
For those who like to work close to the metal, here is a command that will clear out the unwanted soot, without needing any special tools or scripts:
adb logcat "eglCodecCommon:S"
New versions of application servers removed the ability of binding to your entire network interface and limited it just to the local interface (localhost). The reason being was for security. From what I know, Tomcat and JBoss implement the same security measures.
If you want to bind it to another IP you can explicitly set it in your connector string:
address="192.168.1.100"
-b 192.168.1.100
as a command line. Just remember that binding 0.0.0.0
allows anyone access to your box to access that server. It will bind to all addresses. If that is what you want, then use 0.0.0.0, if it isn't then specify the address you would like to explicitly bind instead.
Just make sure you understand the consequences binding to all addresses (0.0.0.0)
You can try using the PNG drop shadows. IE6 doesn't support it, however it will degrade nicely.
http://www.positioniseverything.net/articles/dropshadows.html
You can use indexOf(). Like:
var Color = ["blue", "black", "brown", "gold"];
var a = Color.indexOf("brown");
alert(a);
The indexOf() method searches the array for the specified item, and returns its position. And return -1 if the item is not found.
If you want to search from end to start, use the lastIndexOf() method:
var Color = ["blue", "black", "brown", "gold"];
var a = Color.lastIndexOf("brown");
alert(a);
The search will start at the specified position, or at the end if no start position is specified, and end the search at the beginning of the array.
Returns -1 if the item is not found.
Filter: - A filter as the name suggests is a Java class executed by the servlet container for each incoming HTTP request and for each http response. This way, is possible to manage HTTP incoming requests before them reach the resource, such as a JSP page, a servlet or a simple static page; in the same way is possible to manage HTTP outbound response after resource execution.
Interceptor: - Spring Interceptors are similar to Servlet Filters but they acts in Spring Context so are many powerful to manage HTTP Request and Response but they can implement more sophisticated behavior because can access to all Spring context.
echo You must invoke st from within branch directory
SvnUrl=`svn info | grep URL | sed 's/URL: //'`
SvnVer=`svn info | grep Revision | sed 's/Revision: //'`
svn diff -r $SvnVer --summarize $SvnUrl
Java installer puts several files into %WinDir%\System32 folder (java.exe, javaws.exe and some others). When you type java.exe in command line or create process without full path, Windows runs these as last resort if they are missing in %PATH% folders.
You can lookup all versions of Java installed in registry. Take a look at HKLM\SOFTWARE\JavaSoft\Java Runtime Environment and HKLM\SOFTWARE\Wow6432Node\JavaSoft\Java Runtime Environment for 32-bit java on 64 bit Windows.
This is how java itself finds out different versions installed. And this is why both 32-bit and 64-bit version can co-exist and works fine without interfering.
If you haven't already committed your changes, just use git checkout
to move to the new branch and then commit them normally - changes to files are not tied to a particular branch until you commit them.
If you have already committed your changes:
git log
and remember the SHA of the commit you want to move.git cherry-pick SHA
substituting the SHA from above.git reset HEAD~1
to reset back before your wrong-branch commit.cherry-pick
takes a given commit and applies it to the currently checked-out head, thus allowing you to copy the commit over to a new branch.
CStr(45)
is all you need (the Convert String function)
Use this: http://winginx.com/htaccess
Online converter, nice way and time saver ;)
<link rel="stylesheet" href="/css/bootstrap.min.css">
if you are using laravel 5 or 6 you should create folder css and call it with
it works for me
Lower mm
means minutes, so
DateTime.Now.ToString("dd/MM/yyyy");
or
DateTime.Now.ToString("d");
or
DateTime.Now.ToShortDateString()
The __init__.py
file makes Python treat directories containing it as modules.
Furthermore, this is the first file to be loaded in a module, so you can use it to execute code that you want to run each time a module is loaded, or specify the submodules to be exported.
I agree that one shouldn't suppress warnings in classes or methods as one could overlook other, accidentally suppressed warnings. But IMHO it's absolutely reasonable to suppress a warning that affects only a single line of code.
@SuppressWarnings("unchecked")
Foo<Bar> mockFoo = mock(Foo.class);
So I have been lurking on stack for so many years. This is actually my first time posting on here.
Anyhow, this might seem insane but I came across this post while struggling with the same issue and came up with a dirty solution. I know there are more elegant ways to perhaps set this as a property value but:
if you look at lines 12880-12883 in tcpdf.php :
$fx = ((($w - $this->getAbsFontMeasure($tmpfont['cw'][`110`])) / 2) * $this->k);
$fy = (($w - ((($tmpfont['desc']['Ascent'] - $tmpfont['desc']['Descent']) * $this->FontSizePt / 1000) / $this->k)) * $this->k);
$popt['ap']['n'][$onvalue] = sprintf('q %s BT /F%d %F Tf %F %F Td ('.chr(`110`).') Tj ET Q', $this->TextColor, $tmpfont['i'], $this->FontSizePt, $fx, $fy);
$popt['ap']['n']['Off'] = sprintf('q %s BT /F%d %F Tf %F %F Td ('.chr(`111`).') Tj ET Q', $this->TextColor, $tmpfont['i'], $this->FontSizePt, $fx, $fy);
and lines 13135-13138 :
$fx = ((($w - $this->getAbsFontMeasure($tmpfont['cw'][`108`])) / 2) * $this->k);
$fy = (($w - ((($tmpfont['desc']['Ascent'] - $tmpfont['desc']['Descent']) * $this->FontSizePt / 1000) / $this->k)) * $this->k);
$popt['ap']['n']['Yes'] = sprintf('q %s BT /F%d %F Tf %F %F Td ('.chr(`108`).') Tj ET Q', $this->TextColor, $tmpfont['i'], $this->FontSizePt, $fx, $fy);
$popt['ap']['n']['Off'] = sprintf('q %s BT /F%d %F Tf %F %F Td ('.chr(`109`).') Tj ET Q', $this->TextColor, $tmpfont['i'], $this->FontSizePt, $fx, $fy);
Those widgets are rendered from the zapfdingbats font set... just swap the character codes and voila... checks are radios and/or vice versa. This also opens up ideas to make a custom font set to use here and add some nice styling to your form elements.
Anyhow, just figured I would offer my two cents ... it worked awesome for me.
Another reason of the above error is corrupted jar file. I got the same error but for Junit when running unit tests. Removing jar and downloading it again fixed the issue.
When issue happening on Mac VS 2017 (Which I faced).
Run your application code now.
I would check that the file is not empty first:
import os
scores = {} # scores is an empty dict already
if os.path.getsize(target) > 0:
with open(target, "rb") as f:
unpickler = pickle.Unpickler(f)
# if file is not empty scores will be equal
# to the value unpickled
scores = unpickler.load()
Also open(target, 'a').close()
is doing nothing in your code and you don't need to use ;
.
global $DB;
$status = $DB->query("UPDATE exp_members SET group_id = '$group_id' WHERE member_id = '$member_id'");
if($status == false)
{
die("Didn't Update");
}
If you are using mysql_query
in the backend (whatever $DB->query()
uses to query the database), it will return a TRUE
or FALSE
for INSERT
, UPDATE
, and DELETE
(and a few others), commands, based on their status.
To get fancier tables like
---------------------------------------------------
| First Name | Last Name | Age | Position |
---------------------------------------------------
| John | Smith | 24 | Software |
| | | | Engineer |
---------------------------------------------------
| Mary | Brohowski | 23 | Sales |
| | | | Manager |
---------------------------------------------------
| Aristidis | Papageorgopoulos | 28 | Senior |
| | | | Reseacher |
---------------------------------------------------
you can use this Python recipe:
'''
From http://code.activestate.com/recipes/267662-table-indentation/
PSF License
'''
import cStringIO,operator
def indent(rows, hasHeader=False, headerChar='-', delim=' | ', justify='left',
separateRows=False, prefix='', postfix='', wrapfunc=lambda x:x):
"""Indents a table by column.
- rows: A sequence of sequences of items, one sequence per row.
- hasHeader: True if the first row consists of the columns' names.
- headerChar: Character to be used for the row separator line
(if hasHeader==True or separateRows==True).
- delim: The column delimiter.
- justify: Determines how are data justified in their column.
Valid values are 'left','right' and 'center'.
- separateRows: True if rows are to be separated by a line
of 'headerChar's.
- prefix: A string prepended to each printed row.
- postfix: A string appended to each printed row.
- wrapfunc: A function f(text) for wrapping text; each element in
the table is first wrapped by this function."""
# closure for breaking logical rows to physical, using wrapfunc
def rowWrapper(row):
newRows = [wrapfunc(item).split('\n') for item in row]
return [[substr or '' for substr in item] for item in map(None,*newRows)]
# break each logical row into one or more physical ones
logicalRows = [rowWrapper(row) for row in rows]
# columns of physical rows
columns = map(None,*reduce(operator.add,logicalRows))
# get the maximum of each column by the string length of its items
maxWidths = [max([len(str(item)) for item in column]) for column in columns]
rowSeparator = headerChar * (len(prefix) + len(postfix) + sum(maxWidths) + \
len(delim)*(len(maxWidths)-1))
# select the appropriate justify method
justify = {'center':str.center, 'right':str.rjust, 'left':str.ljust}[justify.lower()]
output=cStringIO.StringIO()
if separateRows: print >> output, rowSeparator
for physicalRows in logicalRows:
for row in physicalRows:
print >> output, \
prefix \
+ delim.join([justify(str(item),width) for (item,width) in zip(row,maxWidths)]) \
+ postfix
if separateRows or hasHeader: print >> output, rowSeparator; hasHeader=False
return output.getvalue()
# written by Mike Brown
# http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/148061
def wrap_onspace(text, width):
"""
A word-wrap function that preserves existing line breaks
and most spaces in the text. Expects that existing line
breaks are posix newlines (\n).
"""
return reduce(lambda line, word, width=width: '%s%s%s' %
(line,
' \n'[(len(line[line.rfind('\n')+1:])
+ len(word.split('\n',1)[0]
) >= width)],
word),
text.split(' ')
)
import re
def wrap_onspace_strict(text, width):
"""Similar to wrap_onspace, but enforces the width constraint:
words longer than width are split."""
wordRegex = re.compile(r'\S{'+str(width)+r',}')
return wrap_onspace(wordRegex.sub(lambda m: wrap_always(m.group(),width),text),width)
import math
def wrap_always(text, width):
"""A simple word-wrap function that wraps text on exactly width characters.
It doesn't split the text in words."""
return '\n'.join([ text[width*i:width*(i+1)] \
for i in xrange(int(math.ceil(1.*len(text)/width))) ])
if __name__ == '__main__':
labels = ('First Name', 'Last Name', 'Age', 'Position')
data = \
'''John,Smith,24,Software Engineer
Mary,Brohowski,23,Sales Manager
Aristidis,Papageorgopoulos,28,Senior Reseacher'''
rows = [row.strip().split(',') for row in data.splitlines()]
print 'Without wrapping function\n'
print indent([labels]+rows, hasHeader=True)
# test indent with different wrapping functions
width = 10
for wrapper in (wrap_always,wrap_onspace,wrap_onspace_strict):
print 'Wrapping function: %s(x,width=%d)\n' % (wrapper.__name__,width)
print indent([labels]+rows, hasHeader=True, separateRows=True,
prefix='| ', postfix=' |',
wrapfunc=lambda x: wrapper(x,width))
# output:
#
#Without wrapping function
#
#First Name | Last Name | Age | Position
#-------------------------------------------------------
#John | Smith | 24 | Software Engineer
#Mary | Brohowski | 23 | Sales Manager
#Aristidis | Papageorgopoulos | 28 | Senior Reseacher
#
#Wrapping function: wrap_always(x,width=10)
#
#----------------------------------------------
#| First Name | Last Name | Age | Position |
#----------------------------------------------
#| John | Smith | 24 | Software E |
#| | | | ngineer |
#----------------------------------------------
#| Mary | Brohowski | 23 | Sales Mana |
#| | | | ger |
#----------------------------------------------
#| Aristidis | Papageorgo | 28 | Senior Res |
#| | poulos | | eacher |
#----------------------------------------------
#
#Wrapping function: wrap_onspace(x,width=10)
#
#---------------------------------------------------
#| First Name | Last Name | Age | Position |
#---------------------------------------------------
#| John | Smith | 24 | Software |
#| | | | Engineer |
#---------------------------------------------------
#| Mary | Brohowski | 23 | Sales |
#| | | | Manager |
#---------------------------------------------------
#| Aristidis | Papageorgopoulos | 28 | Senior |
#| | | | Reseacher |
#---------------------------------------------------
#
#Wrapping function: wrap_onspace_strict(x,width=10)
#
#---------------------------------------------
#| First Name | Last Name | Age | Position |
#---------------------------------------------
#| John | Smith | 24 | Software |
#| | | | Engineer |
#---------------------------------------------
#| Mary | Brohowski | 23 | Sales |
#| | | | Manager |
#---------------------------------------------
#| Aristidis | Papageorgo | 28 | Senior |
#| | poulos | | Reseacher |
#---------------------------------------------
The Python recipe page contains a few improvements on it.
Problem seems to be associated with the SET statement. I think the expression can't be more than 4,000 bytes in size. There is no need to make any changes to any settings if all you are trying to do is to assign a dynamically generated statement that is more than 4,000 characters. What you need to do is to split your assignment. If your statement is 6,000 characters long, find a logical break point and then concatenate second half to the same variable. For example:
SET @Query = 'SELECT ....' [Up To 4,000 characters, then rest of statement as below]
SET @Query = @Query + [rest of statement]
Now run your query as normal i.e. EXEC ( @Query )
Yes, this is confusing...
According to this blog post, it looks like this is an omission from WPF.
To make it work you need to use a style:
<Border Name="ClearButtonBorder" Grid.Column="1" CornerRadius="0,3,3,0">
<Border.Style>
<Style>
<Setter Property="Border.Background" Value="Blue"/>
<Style.Triggers>
<Trigger Property="Border.IsMouseOver" Value="True">
<Setter Property="Border.Background" Value="Green" />
</Trigger>
</Style.Triggers>
</Style>
</Border.Style>
<TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" Text="X" />
</Border>
I guess this problem isn't that common as most people tend to factor out this sort of thing into a style, so it can be used on multiple controls.
With gulp-useref you can concatenate every script declared in your index file, in the order in which you declare it.
https://www.npmjs.com/package/gulp-useref
var $ = require('gulp-load-plugins')();
gulp.task('jsbuild', function () {
var assets = $.useref.assets({searchPath: '{.tmp,app}'});
return gulp.src('app/**/*.html')
.pipe(assets)
.pipe($.if('*.js', $.uglify({preserveComments: 'some'})))
.pipe(gulp.dest('dist'))
.pipe($.size({title: 'html'}));
});
And in the HTML you have to declare the name of the build file you want to generate, like this:
<!-- build:js js/main.min.js -->
<script src="js/vendor/vendor.js"></script>
<script src="js/modules/test.js"></script>
<script src="js/main.js"></script>
In your build directory you will have the reference to main.min.js which will contain vendor.js, test.js, and main.js
Building on Kugel's answer and taking Mike Graham's words of caution into consideration, what if we make a wrapper?
class DictWrap(object):
""" Wrap an existing dict, or create a new one, and access with either dot
notation or key lookup.
The attribute _data is reserved and stores the underlying dictionary.
When using the += operator with create=True, the empty nested dict is
replaced with the operand, effectively creating a default dictionary
of mixed types.
args:
d({}): Existing dict to wrap, an empty dict is created by default
create(True): Create an empty, nested dict instead of raising a KeyError
example:
>>>dw = DictWrap({'pp':3})
>>>dw.a.b += 2
>>>dw.a.b += 2
>>>dw.a['c'] += 'Hello'
>>>dw.a['c'] += ' World'
>>>dw.a.d
>>>print dw._data
{'a': {'c': 'Hello World', 'b': 4, 'd': {}}, 'pp': 3}
"""
def __init__(self, d=None, create=True):
if d is None:
d = {}
supr = super(DictWrap, self)
supr.__setattr__('_data', d)
supr.__setattr__('__create', create)
def __getattr__(self, name):
try:
value = self._data[name]
except KeyError:
if not super(DictWrap, self).__getattribute__('__create'):
raise
value = {}
self._data[name] = value
if hasattr(value, 'items'):
create = super(DictWrap, self).__getattribute__('__create')
return DictWrap(value, create)
return value
def __setattr__(self, name, value):
self._data[name] = value
def __getitem__(self, key):
try:
value = self._data[key]
except KeyError:
if not super(DictWrap, self).__getattribute__('__create'):
raise
value = {}
self._data[key] = value
if hasattr(value, 'items'):
create = super(DictWrap, self).__getattribute__('__create')
return DictWrap(value, create)
return value
def __setitem__(self, key, value):
self._data[key] = value
def __iadd__(self, other):
if self._data:
raise TypeError("A Nested dict will only be replaced if it's empty")
else:
return other
On php 5.3.0 and later version you dont need to specially install mysqli on windows. Rather follow simple steps as shown below.
Locate php.ini file [ if not there it means you have not copied php.ini-development or php.ini-production file as php.ini to make your configurations ]
There are 2 things to be done 1. Uncomment and set right path to extension_dir = "ext" Basically set the path where you find ext folder in php even if its in same folder from where you are running php-cgi.ex
Note: uncommenting in this php.ini file is by removing starting ; from the line.
I usually prefer running my python scripts on python native IDLE interactive shell rather than from command prompt or something like that. I've tried it, and it works for me. Just open "Run > Run...", then paste the code below
python -m idlelib.idle -r "$(FULL_CURRENT_PATH)"
After that, you can save it with your hotkey.
You must ensure your desired python is added and registered in your environment variables.
I would combine node-http-proxy and express.
node-http-proxy will support a proxy inside your node.js web server via RoutingProxy
(see the example called Proxy requests within another http server).
Inside your custom server logic you can do authentication using express. See the auth sample here for an example.
Combining those two examples should give you what you want.
Changing title when attributed is a bit different :
I just ran into a problem : If you have an UIButton with an Attributed Title, you have to use :
my_btn.setAttributedTitle(NSAttributedString(string: my_title), for: my_state)
as, per Apple SetTitle Doc :
If you set both a title and an attributed title for the button, the button prefers the use of the attributed title over this one.
I had an attributed title and I tried to setTitle on it, with no effect...
If you want to download SVN repository online (e.g. Google Code) without installing anything, you can use wget:
wget -m -np http://myproject.googlecode.com/svn/myproject/trunk/
If authorization is required, you can use the --user
and --ask-password
flags, which will prompt you for your password:
wget --user=yourusername --ask-password -m -np http://myproject.googlecode.com/svn/myproject/trunk/
Explaining what the parameter does:
-m, --mirror:
Turn on options suitable for mirroring. This option turns on recursion and time-stamping, sets infinite recursion depth and keeps FTP directory listings. It is currently equivalent to
-r -N -l inf --no-remove-listing
.
-np, --no-parent:
Do not ever ascend to the parent directory when retrieving recursively. This is a useful option, since it guarantees that only the files below a certain hierarchy will be downloaded.
If you want to filter on Array of Objects then you can give
filter:({genres: 'Action', key :value }.
Individual property will be filtered by particular filter given for that property.
But if you wanted to something like filter by individual Property and filter globally for all properties then you can do something like this.
<tr ng-repeat="supp in $data | filter : filterObject | filter : search">
_x000D_
~Atul
The ability of the interpreter to deduce type and type conversions makes development time faster, but it also can provoke runtime failures which you just cannot get in a statically typed language where you catch them at compile time. But which one's better (or even if that's always true) is hotly discussed in the community these days (and since a long time).
A good take on the issue is from Static Typing Where Possible, Dynamic Typing When Needed: The End of the Cold War Between Programming Languages by Erik Meijer and Peter Drayton at Microsoft:
Advocates of static typing argue that the advantages of static typing include earlier detection of programming mistakes (e.g. preventing adding an integer to a boolean), better documentation in the form of type signatures (e.g. incorporating number and types of arguments when resolving names), more opportunities for compiler optimizations (e.g. replacing virtual calls by direct calls when the exact type of the receiver is known statically), increased runtime efficiency (e.g. not all values need to carry a dynamic type), and a better design time developer experience (e.g. knowing the type of the receiver, the IDE can present a drop-down menu of all applicable members). Static typing fanatics try to make us believe that “well-typed programs cannot go wrong”. While this certainly sounds impressive, it is a rather vacuous statement. Static type checking is a compile-time abstraction of the runtime behavior of your program, and hence it is necessarily only partially sound and incomplete. This means that programs can still go wrong because of properties that are not tracked by the type-checker, and that there are programs that while they cannot go wrong cannot be type-checked. The impulse for making static typing less partial and more complete causes type systems to become overly complicated and exotic as witnessed by concepts such as “phantom types” [11] and “wobbly types” [10]. This is like trying to run a marathon with a ball and chain tied to your leg and triumphantly shouting that you nearly made it even though you bailed out after the first mile.
Advocates of dynamically typed languages argue that static typing is too rigid, and that the softness of dynamically languages makes them ideally suited for prototyping systems with changing or unknown requirements, or that interact with other systems that change unpredictably (data and application integration). Of course, dynamically typed languages are indispensable for dealing with truly dynamic program behavior such as method interception, dynamic loading, mobile code, runtime reflection, etc. In the mother of all papers on scripting [16], John Ousterhout argues that statically typed systems programming languages make code less reusable, more verbose, not more safe, and less expressive than dynamically typed scripting languages. This argument is parroted literally by many proponents of dynamically typed scripting languages. We argue that this is a fallacy and falls into the same category as arguing that the essence of declarative programming is eliminating assignment. Or as John Hughes says [8], it is a logical impossibility to make a language more powerful by omitting features. Defending the fact that delaying all type-checking to runtime is a good thing, is playing ostrich tactics with the fact that errors should be caught as early in the development process as possible.
For hibernate5 I solved this issue by puting next lines in my application.properties file:
spring.jpa.hibernate.naming.implicit-strategy=org.hibernate.boot.model.naming.ImplicitNamingStrategyLegacyJpaImpl
spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
You did not include the datepicker library
so add
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.11/jquery-ui.min.js"></script>
to your <head>
tag
Simply do it....
<form>
<!-- Your Input Elements -->
</form>
and here goes your JQuery
$(document).on('submit', 'form', function(e){
e.preventDefault();
//your code goes here
//100% works
return;
});
You don't need to convert to decimal; you can also enter 46 23S, 115 22E. You can add seconds after the minutes, also separated by a space.
I finally figured out the regex to change these all in old Python2 example scripts. Otherwise use 2to3.py.
Try it out on Regexr.com, doesn't work in NP++(?):
find: (?<=print)( ')(.*)(')
replace: ('$2')
for variables:
(?<=print)( )(.*)(\n)
('$2')\n
for label and variable:
(?<=print)( ')(.*)(',)(.*)(\n)
('$2',$4)\n
https://github.com/cognitom/paper-css seems to solve all my needs.
Front-end printing solution - previewable and live-reloadable!
Spring Framework org.springframework.util.SerializationUtils
byte[] data = SerializationUtils.serialize(obj);
These messages are rather misleading and understandably a source of confusion. Older Ubuntu versions used Libav which is a fork of the FFmpeg project. FFmpeg returned in Ubuntu 15.04 "Vivid Vervet".
The fork was basically a non-amicable result of conflicting personalities and development styles within the FFmpeg community. It is worth noting that the maintainer for Debian/Ubuntu switched from FFmpeg to Libav on his own accord due to being involved with the Libav fork.
ffmpeg
vs the fake oneFor a while both Libav and FFmpeg separately developed their own version of ffmpeg
.
Libav then renamed their bizarro ffmpeg
to avconv
to distance themselves from the FFmpeg project. During the transition period the "not developed anymore" message was displayed to tell users to start using avconv
instead of their counterfeit version of ffmpeg
. This confused users into thinking that FFmpeg (the project) is dead, which is not true. A bad choice of words, but I can't imagine Libav not expecting such a response by general users.
This message was removed upstream when the fake "ffmpeg
" was finally removed from the Libav source, but, depending on your version, it can still show up in Ubuntu because the Libav source Ubuntu uses is from the ffmpeg-to-avconv transition period.
In June 2012, the message was re-worded for the package libav - 4:0.8.3-0ubuntu0.12.04.1
. Unfortunately the new "deprecated" message has caused additional user confusion.
Starting with Ubuntu 15.04 "Vivid Vervet", FFmpeg's ffmpeg
is back in the repositories again.
To further complicate matters, Libav chose a name that was historically used by FFmpeg to refer to its libraries (libavcodec, libavformat, etc). For example the libav-user mailing list, for questions and discussions about using the FFmpeg libraries, is unrelated to the Libav project.
If you are using avconv
then you are using Libav. If you are using ffmpeg
you could be using FFmpeg or Libav. Refer to the first line in the console output to tell the difference: the copyright notice will either mention FFmpeg or Libav.
Secondly, the version numbering schemes differ. Each of the FFmpeg or Libav libraries contains a version.h
header which shows a version number. FFmpeg will end in three digits, such as 57.67.100, and Libav will end in one digit such as 57.67.0. You can also view the library version numbers by running ffmpeg
or avconv
and viewing the console output.
ffmpeg
The real ffmpeg
is in the repository, so you can install it with:
apt-get install ffmpeg
Your options are:
ffmpeg
,ffmpeg
,These methods are non-intrusive, reversible, and will not interfere with the system or any repository packages.
Another possible option is to upgrade to Ubuntu 15.04 "Vivid Vervet" or newer and just use ffmpeg
from the repository.
For an interesting blog article on the situation, as well as a discussion about the main technical differences between the projects, see The FFmpeg/Libav situation.
AsyncTask<CognitoCachingCredentialsProvider, Integer, Void> task = new
AsyncTask<CognitoCachingCredentialsProvider, Integer, Void>() {
@Override
protected Void doInBackground(CognitoCachingCredentialsProvider... params) {
AWSSessionCredentials creds = credentialsProvider.getCredentials();
String id = credentialsProvider.getCachedIdentityId();
credentialsProvider.refresh();
Log.d("wooohoo", String.format("id=%s, token=%s", id, creds.getSessionToken()));
return null;
}
};
task.execute(credentialsProvider);
Check Answer Key 2018
For me this was a case that the Script path wouldn't load - I had incorrectly linked it. Check your script files - even if no path error is reported - actually load.
In addition to options suggested by others I can recommend the fmt library which implements string formatting similar to str.format
in Python and String.Format
in C#. Here's an example:
std::string a = "test";
std::string b = "text.txt";
std::string c = "text1.txt";
std::string result = fmt::format("{0} {1} > {2}", a, b, c);
Disclaimer: I'm the author of this library.
In python 3.1 you can produce a list in a way
lst=list(range(100))
for i in range(100)
print (lst[i],',',end='')
In python 2.7 you can do it as
lst=range(100)
for i in range(100)
print lst[i]+','
I ran into the same problem. I wanted tabs to work like buffers and I never quite manage to get them to. The solution that I finally settled on was to make buffers behave like tabs!
Check out the plugin called Mini Buffer Explorer, once installed and configured, you'll be able to work with buffers virtaully the same way as tabs without losing any functionality.
Let's revisit key phases of Mapreduce program.
The map phase is done by mappers. Mappers run on unsorted input key/values pairs. Each mapper emits zero, one, or multiple output key/value pairs for each input key/value pairs.
The combine phase is done by combiners. The combiner should combine key/value pairs with the same key. Each combiner may run zero, once, or multiple times.
The shuffle and sort phase is done by the framework. Data from all mappers are grouped by the key, split among reducers and sorted by the key. Each reducer obtains all values associated with the same key. The programmer may supply custom compare functions for sorting and a partitioner for data split.
The partitioner decides which reducer will get a particular key value pair.
The reducer obtains sorted key/[values list] pairs, sorted by the key. The value list contains all values with the same key produced by mappers. Each reducer emits zero, one or multiple output key/value pairs for each input key/value pair.
Have a look at this javacodegeeks article by Maria Jurcovicova and mssqltips article by Datta for a better understanding
Below is the image from safaribooksonline article
It is a 32bit declaration. If you type at the top of an assembly file the statement [bits 32], then you don't need to type DWORD PTR. So for example:
[bits 32]
.
.
and [ebp-4], 0
Pandas uses numpy
's NaN value. Use numpy.isnan
to obtain a Boolean vector from a pandas series.
In C# 5.0, this problem is fixed and you can close over loop variables and get the results you expect.
The language specification says:
8.8.4 The foreach statement
(...)
A foreach statement of the form
foreach (V v in x) embedded-statement
is then expanded to:
{ E e = ((C)(x)).GetEnumerator(); try { while (e.MoveNext()) { V v = (V)(T)e.Current; embedded-statement } } finally { … // Dispose e } }
(...)
The placement of
v
inside the while loop is important for how it is captured by any anonymous function occurring in the embedded-statement. For example:int[] values = { 7, 9, 13 }; Action f = null; foreach (var value in values) { if (f == null) f = () => Console.WriteLine("First value: " + value); } f();
If
v
was declared outside of the while loop, it would be shared among all iterations, and its value after the for loop would be the final value,13
, which is what the invocation off
would print. Instead, because each iteration has its own variablev
, the one captured byf
in the first iteration will continue to hold the value7
, which is what will be printed. (Note: earlier versions of C# declaredv
outside of the while loop.)
Rendering happens after change detection. To force change detection, so that component property values that have changed get propagated to the DOM (and then the browser will render those changes in the view), here are some options:
$rootScope.$digest()
-- i.e., check the full component tree$rootScope.$apply(callback)
-- i.e., evaluate the callback function inside the Angular 2 zone. I think, but I'm not sure, that this ends up checking the full component tree after executing the callback function.$scope.$digest()
-- i.e., check only this component and its childrenYou will need to import and then inject ApplicationRef
, NgZone
, or ChangeDetectorRef
into your component.
For your particular scenario, I would recommend the last option if only a single component has changed.
If you must use double quotation mark at any parameter, you can get error "'c:\somepath' is not recognized a an internal or external command, operable program or batch file". I suggest below solution when using double qoutation mark: https://stackoverflow.com/a/43467194/3835640
I hope the code below will help you.
String s="Welcome to Java Programming";
char arr[]=s.toCharArray();
for(int i=0;i<arr.length;i++){
System.out.println("Data at ["+i+"]="+arr[i]);
}
It's working and the output is:
Data at [0]=W
Data at [1]=e
Data at [2]=l
Data at [3]=c
Data at [4]=o
Data at [5]=m
Data at [6]=e
Data at [7]=
Data at [8]=t
Data at [9]=o
Data at [10]=
Data at [11]=J
Data at [12]=a
Data at [13]=v
Data at [14]=a
Data at [15]=
Data at [16]=P
Data at [17]=r
Data at [18]=o
Data at [19]=g
Data at [20]=r
Data at [21]=a
Data at [22]=m
Data at [23]=m
Data at [24]=i
Data at [25]=n
Data at [26]=g
Calling this method worked for me. Place it after presenting your view.
[yourViewBeingPresented.view layoutIfNeeded];
A Subscription is an object that represents a disposable resource, usually the execution of an Observable. A Subscription has one important method, unsubscribe, that takes no argument and just disposes of the resource held by the subscription.
import { interval } from 'rxjs';
const observable = interval(1000);
const subscription = observable.subscribe(a=> console.log(a));
/** This cancels the ongoing Observable execution which
was started by calling subscribe with an Observer.*/
subscription.unsubscribe();
A Subscription essentially just has an unsubscribe() function to release resources or cancel Observable executions.
import { interval } from 'rxjs';
const observable1 = interval(400);
const observable2 = interval(300);
const subscription = observable1.subscribe(x => console.log('first: ' + x));
const childSubscription = observable2.subscribe(x => console.log('second: ' + x));
subscription.add(childSubscription);
setTimeout(() => {
// It unsubscribes BOTH subscription and childSubscription
subscription.unsubscribe();
}, 1000);
According to the official documentation, Angular should unsubscribe for you, but apparently, there is a bug.
select A, B, 'c' as C
from MyTable
You can use an Extension method to iterate the RadioButton's Parent.Controls collection. This allows you to query other RadioButtons in the same scope. Using two extension methods, you can use the first determine whether any RadioButtons in the group are selected, then use the second to get the selection. The RadioButton Tag field can be used to hold an Enum to identify each RadioButton in the group:
public static int GetRadioSelection(this RadioButton rb, int Default = -1) {
foreach(Control c in rb.Parent.Controls) {
RadioButton r = c as RadioButton;
if(r != null && r.Checked) return Int32.Parse((string)r.Tag);
}
return Default;
}
public static bool IsRadioSelected(this RadioButton rb) {
foreach(Control c in rb.Parent.Controls) {
RadioButton r = c as RadioButton;
if(r != null && r.Checked) return true;
}
return false;
}
Here's a typical use pattern:
if(!MyRadioButton.IsRadioSelected()) {
MessageBox.Show("No radio selected.");
return;
}
int selection = MyRadioButton.GetRadioSelection;
I have been using the latter for a lot of nice lightweight animations. You can use it crossfade two views, or fade one in in front of another, or fade it out. You can shoot a view over another like a banner, you can make a view stretch or shrink... I'm getting a lot of mileage out of beginAnimation
/commitAnimations
.
Don't think that all you can do is:
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:myview cache:YES];
Here is a sample:
[UIView beginAnimations:nil context:NULL]; {
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationDuration:1.0];
[UIView setAnimationDelegate:self];
if (movingViewIn) {
// after the animation is over, call afterAnimationProceedWithGame
// to start the game
[UIView setAnimationDidStopSelector:@selector(afterAnimationProceedWithGame)];
// [UIView setAnimationRepeatCount:5.0]; // don't forget you can repeat an animation
// [UIView setAnimationDelay:0.50];
// [UIView setAnimationRepeatAutoreverses:YES];
gameView.alpha = 1.0;
topGameView.alpha = 1.0;
viewrect1.origin.y = selfrect.size.height - (viewrect1.size.height);
viewrect2.origin.y = -20;
topGameView.alpha = 1.0;
}
else {
// call putBackStatusBar after animation to restore the state after this animation
[UIView setAnimationDidStopSelector:@selector(putBackStatusBar)];
gameView.alpha = 0.0;
topGameView.alpha = 0.0;
}
[gameView setFrame:viewrect1];
[topGameView setFrame:viewrect2];
} [UIView commitAnimations];
As you can see, you can play with alpha, frames, and even sizes of a view. Play around. You may be surprised with its capabilities.
i used the code below, it solves my problem to add event in default device calendar in ICS and also on version less that ICS
if (Build.VERSION.SDK_INT >= 14) {
Intent intent = new Intent(Intent.ACTION_INSERT)
.setData(Events.CONTENT_URI)
.putExtra(CalendarContract.EXTRA_EVENT_BEGIN_TIME, beginTime.getTimeInMillis())
.putExtra(CalendarContract.EXTRA_EVENT_END_TIME, endTime.getTimeInMillis())
.putExtra(Events.TITLE, "Yoga")
.putExtra(Events.DESCRIPTION, "Group class")
.putExtra(Events.EVENT_LOCATION, "The gym")
.putExtra(Events.AVAILABILITY, Events.AVAILABILITY_BUSY)
.putExtra(Intent.EXTRA_EMAIL, "[email protected],[email protected]");
startActivity(intent);
}
else {
Calendar cal = Calendar.getInstance();
Intent intent = new Intent(Intent.ACTION_EDIT);
intent.setType("vnd.android.cursor.item/event");
intent.putExtra("beginTime", cal.getTimeInMillis());
intent.putExtra("allDay", true);
intent.putExtra("rrule", "FREQ=YEARLY");
intent.putExtra("endTime", cal.getTimeInMillis()+60*60*1000);
intent.putExtra("title", "A Test Event from android app");
startActivity(intent);
}
Hope it would help.....
You could check the position of the div using $(div).position()
and check if the left and top margin properties are less than 0 :
if($(div).position().left < 0 && $(div).position().top < 0){
alert("off screen");
}
one way...
$needle = "blah";
$content = file_get_contents('file.txt');
preg_match('~^(.*'.$needle.'.*)$~',$content,$line);
echo $line[1];
though it would probably be better to read it line by line with fopen() and fread() and use strpos()
The best solution if you are using Spring 3 and need the authenticated principal in your controller is to do something like this:
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.userdetails.User;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
@Controller
public class KnoteController {
@RequestMapping(method = RequestMethod.GET)
public java.lang.String list(Model uiModel, UsernamePasswordAuthenticationToken authToken) {
if (authToken instanceof UsernamePasswordAuthenticationToken) {
user = (User) authToken.getPrincipal();
}
...
}
in ActivitySaludo
, this line,
setContentView(txtCambiado);
you must set the content view for the activity only once.
I just had this error now in server only and the solution was to set a maxItemsInObjectGraph
attribute in wcf web.config
under <behavior>
tag:
<dataContractSerializer maxItemsInObjectGraph="2147483646"/>
In my case, I had accidentally named a folder 'samples '. I couldn't see the space when I did 'ls -la'.
Eventually I realized this when I tried tabbing to autocomplete and saw 'samples\ /'.
To fix this I ran
mv samples\ samples
Unique pointers are guaranteed to destroy the object they manage when they go out of scope. http://en.cppreference.com/w/cpp/memory/unique_ptr
In this case:
unique_ptr<double> uptr2 (pd);
pd
will be destroyed when uptr2
goes out of scope. This facilitates memory management by automatic deletion.
The case of unique_ptr<int> uptr (new int(3));
is not different, except that the raw pointer is not assigned to any variable here.
You can use format
:
library(zoo)
x <- as.yearmon(Sys.time())
format(x,"%b")
[1] "Mar"
format(x,"%Y")
[1] "2012"
You do not sort entries in the Dictionary. Dictionary class in .NET is implemented as a hashtable - this data structure is not sortable by definition.
If you need to be able to iterate over your collection (by key) - you need to use SortedDictionary, which is implemented as a Binary Search Tree.
In your case, however the source structure is irrelevant, because it is sorted by a different field. You would still need to sort it by frequency and put it in a new collection sorted by the relevant field (frequency). So in this collection the frequencies are keys and words are values. Since many words can have the same frequency (and you are going to use it as a key) you cannot use neither Dictionary nor SortedDictionary (they require unique keys). This leaves you with a SortedList.
I don't understand why you insist on maintaining a link to the original item in your main/first dictionary.
If the objects in your collection had a more complex structure (more fields) and you needed to be able to efficiently access/sort them using several different fields as keys - You would probably need a custom data structure that would consist of the main storage that supports O(1) insertion and removal (LinkedList) and several indexing structures - Dictionaries/SortedDictionaries/SortedLists. These indexes would use one of the fields from your complex class as a key and a pointer/reference to the LinkedListNode in the LinkedList as a value.
You would need to coordinate insertions and removals to keep your indexes in sync with the main collection (LinkedList) and removals would be pretty expensive I'd think. This is similar to how database indexes work - they are fantastic for lookups but they become a burden when you need to perform many insetions and deletions.
All of the above is only justified if you are going to do some look-up heavy processing. If you only need to output them once sorted by frequency then you could just produce a list of (anonymous) tuples:
var dict = new SortedDictionary<string, int>();
// ToDo: populate dict
var output = dict.OrderBy(e => e.Value).Select(e => new {frequency = e.Value, word = e.Key}).ToList();
foreach (var entry in output)
{
Console.WriteLine("frequency:{0}, word: {1}",entry.frequency,entry.word);
}
you can use the below to list files by size du -h | sort -hr | more or du -h --max-depth=0 * | sort -hr | more
if you use docker-compose.yml
file:
services:
varnish:
ports:
- 80
- 6081
You can also specify the host/network port as HOST/NETWORK_PORT:CONTAINER_PORT
varnish:
ports:
- 81:80
- 6081:6081
Just for clarification, CorFlags.exe is part of the .NET Framework SDK. I have the development tools on my machine, and the simplest way for me determine whether a DLL is 32-bit only is to:
Open the Visual Studio Command Prompt (In Windows: menu Start/Programs/Microsoft Visual Studio/Visual Studio Tools/Visual Studio 2008 Command Prompt)
CD to the directory containing the DLL in question
Run corflags like this:
corflags MyAssembly.dll
You will get output something like this:
Microsoft (R) .NET Framework CorFlags Conversion Tool. Version 3.5.21022.8
Copyright (c) Microsoft Corporation. All rights reserved.
Version : v2.0.50727
CLR Header: 2.5
PE : PE32
CorFlags : 3
ILONLY : 1
32BIT : 1
Signed : 0
As per comments the flags above are to be read as following:
The question has already been answered by aaronasterling
However, someone might be interested in how the variables are stored under the hood.
Before coming to the snippet:
Closures are functions that inherit variables from their enclosing environment. When you pass a function callback as an argument to another function that will do I/O, this callback function will be invoked later, and this function will — almost magically — remember the context in which it was declared, along with all the variables available in that context.
If a function does not use free variables it doesn't form a closure.
If there is another inner level which uses free variables -- all previous levels save the lexical environment ( example at the end )
function attributes func_closure
in python < 3.X or __closure__
in python > 3.X save the free variables.
Every function in python has this closure attributes, but it doesn't save any content if there is no free variables.
example: of closure attributes but no content inside as there is no free variable.
>>> def foo():
... def fii():
... pass
... return fii
...
>>> f = foo()
>>> f.func_closure
>>> 'func_closure' in dir(f)
True
>>>
NB: FREE VARIABLE IS MUST TO CREATE A CLOSURE.
I will explain using the same snippet as above:
>>> def make_printer(msg):
... def printer():
... print msg
... return printer
...
>>> printer = make_printer('Foo!')
>>> printer() #Output: Foo!
And all Python functions have a closure attribute so let's examine the enclosing variables associated with a closure function.
Here is the attribute func_closure
for the function printer
>>> 'func_closure' in dir(printer)
True
>>> printer.func_closure
(<cell at 0x108154c90: str object at 0x108151de0>,)
>>>
The closure
attribute returns a tuple of cell objects which contain details of the variables defined in the enclosing scope.
The first element in the func_closure which could be None or a tuple of cells that contain bindings for the function’s free variables and it is read-only.
>>> dir(printer.func_closure[0])
['__class__', '__cmp__', '__delattr__', '__doc__', '__format__', '__getattribute__',
'__hash__', '__init__', '__new__', '__reduce__', '__reduce_ex__', '__repr__',
'__setattr__', '__sizeof__', '__str__', '__subclasshook__', 'cell_contents']
>>>
Here in the above output you can see cell_contents
, let's see what it stores:
>>> printer.func_closure[0].cell_contents
'Foo!'
>>> type(printer.func_closure[0].cell_contents)
<type 'str'>
>>>
So, when we called the function printer()
, it accesses the value stored inside the cell_contents
. This is how we got the output as 'Foo!'
Again I will explain using the above snippet with some changes:
>>> def make_printer(msg):
... def printer():
... pass
... return printer
...
>>> printer = make_printer('Foo!')
>>> printer.func_closure
>>>
In the above snippet, I din't print msg inside the printer function, so it doesn't create any free variable. As there is no free variable, there will be no content inside the closure. Thats exactly what we see above.
Now I will explain another different snippet to clear out everything Free Variable
with Closure
:
>>> def outer(x):
... def intermediate(y):
... free = 'free'
... def inner(z):
... return '%s %s %s %s' % (x, y, free, z)
... return inner
... return intermediate
...
>>> outer('I')('am')('variable')
'I am free variable'
>>>
>>> inter = outer('I')
>>> inter.func_closure
(<cell at 0x10c989130: str object at 0x10c831b98>,)
>>> inter.func_closure[0].cell_contents
'I'
>>> inn = inter('am')
So, we see that a func_closure
property is a tuple of closure cells, we can refer them and their contents explicitly -- a cell has property "cell_contents"
>>> inn.func_closure
(<cell at 0x10c9807c0: str object at 0x10c9b0990>,
<cell at 0x10c980f68: str object at 0x10c9eaf30>,
<cell at 0x10c989130: str object at 0x10c831b98>)
>>> for i in inn.func_closure:
... print i.cell_contents
...
free
am
I
>>>
Here when we called inn
, it will refer all the save free variables so we get I am free variable
>>> inn('variable')
'I am free variable'
>>>
You can use ng-show on every div element in the loop. Is this what you've wanted: http://jsfiddle.net/pGwRu/2/ ?
<div class="from" ng-show="message.from">From: {{message.from.name}}</div>
First get the pid:
ps ax | grep [process name]
And then:
top -p PID
You can watch various processes in the same time:
top -p PID1 -p PID2
I could get solution for such a similar problem with addition of a simple line
HttpURLConnection hConn = (HttpURLConnection) url.openConnection();
hConn.setRequestMethod("HEAD");
My requirement was to know the response code and for that just getting the meta-information was sufficient, instead of getting the complete response body.
Default request method is GET and that was taking lot of time to return, finally throwing me SocketTimeoutException. The response was pretty fast when I set the Request Method to HEAD.
Sweet and simple:
There is a better way that is safer and will not slow down your application. How Excel is set up, a cell can have either a value or a formula; the formula can not refer to its own cell. Otherwise, You end up with an infinite loop, since the new value would cause another calculation... .
Use a helper column to calculate the value based on what you put in the other cell.
For Example:
Column A is a True or False, Column B contains a monetary value, Column C contains the following formula:
=B1
Now, to calculate that column B will be highlighted yellow in a conditional format only if Column A is True and Column B is greater than Zero...
=AND(A1=True,C1>0)
You can then choose to hide column C
There is not much point in declaring an array without size. An array is about size. When you declare an array of specific size, you specify the fixed number of slots available in a collection that can hold things, and accordingly memory is allocated. To add something to it, you will need to anyway reinitialize the existing array (even if you're resizing the array, see this thread). One of the rare cases where you would want to initialise an empty array would be to pass array as an argument.
If you want to define a collection when you do not know what size it could be of possibly, array is not your choice, but something like a List<T>
or similar.
That said, the only way to declare an array without specifying size is to have an empty array of size 0. hemant and Alex Dn provides two ways. Another simpler alternative is to just:
string[] a = { };
[The elements inside the bracket should be implicitly convertible to type defined, for instance, string[] a = { "a", "b" };
]
Or yet another:
var a = Enumerable.Empty<string>().ToArray();
Here is a more declarative way:
public static class Array<T>
{
public static T[] Empty()
{
return Empty(0);
}
public static T[] Empty(int size)
{
return new T[size];
}
}
Now you can call:
var a = Array<string>.Empty();
//or
var a = Array<string>.Empty(5);
You can, however no any table. From documentation:
For Transact-SQL functions, all data types, including CLR user-defined types and user-defined table types, are allowed except the timestamp data type.
You can use user-defined table types.
Example of user-defined table type:
CREATE TYPE TableType
AS TABLE (LocationName VARCHAR(50))
GO
DECLARE @myTable TableType
INSERT INTO @myTable(LocationName) VALUES('aaa')
SELECT * FROM @myTable
So what you can do is to define your table type, for example TableType
and define the function which takes the parameter of this type. An example function:
CREATE FUNCTION Example( @TableName TableType READONLY)
RETURNS VARCHAR(50)
AS
BEGIN
DECLARE @name VARCHAR(50)
SELECT TOP 1 @name = LocationName FROM @TableName
RETURN @name
END
The parameter has to be READONLY. And example usage:
DECLARE @myTable TableType
INSERT INTO @myTable(LocationName) VALUES('aaa')
SELECT * FROM @myTable
SELECT dbo.Example(@myTable)
Depending on what you want achieve you can modify this code.
EDIT: If you have a data in a table you may create a variable:
DECLARE @myTable TableType
And take data from your table to the variable
INSERT INTO @myTable(field_name)
SELECT field_name_2 FROM my_other_table
if you don't want to use json.parse(json.stringify(object)) you could create recursively key-value copies:
function copy(item){
let result = null;
if(!item) return result;
if(Array.isArray(item)){
result = [];
item.forEach(element=>{
result.push(copy(element));
});
}
else if(item instanceof Object && !(item instanceof Function)){
result = {};
for(let key in item){
if(key){
result[key] = copy(item[key]);
}
}
}
return result || item;
}
But the best way is to create a class that can return a clone of it self
class MyClass{
data = null;
constructor(values){ this.data = values }
toString(){ console.log("MyClass: "+this.data.toString(;) }
remove(id){ this.data = data.filter(d=>d.id!==id) }
clone(){ return new MyClass(this.data) }
}
As the title says "Best way", I think it's a good idea to consider the patience merge strategy.
From: https://git-scm.com/docs/merge-strategies
With this option, 'merge-recursive' spends a little extra time to avoid mismerges that sometimes occur due to unimportant matching lines (e.g., braces from distinct functions). Use this when the branches to be merged have diverged wildly. See also git-diff[1] --patience.
Usage:
git fetch
git merge -s recursive -X patience origin/master
I use always an alias for this, e.g. run once:
git config --global alias.pmerge 'merge -s recursive -X patience'
Now you could do:
git fetch
git pmerge origin/master
A good middle-ground between enabling MARS and retrieving the entire result set into memory is to retrieve only IDs in an initial query, and then loop through the IDs materializing each entity as you go.
For example (using the "Blog and Posts" sample entities as in this answer):
using (var context = new BlogContext())
{
// Get the IDs of all the items to loop through. This is
// materialized so that the data reader is closed by the
// time we're looping through the list.
var blogIds = context.Blogs.Select(blog => blog.Id).ToList();
// This query represents all our items in their full glory,
// but, items are only materialized one at a time as we
// loop through them.
var blogs =
blogIds.Select(id => context.Blogs.First(blog => blog.Id == id));
foreach (var blog in blogs)
{
this.DoSomethingWith(blog.Posts);
context.SaveChanges();
}
}
Doing this means that you only pull a few thousand integers into memory, as opposed to thousands of entire object graphs, which should minimize memory usage while enabling you to work item-by-item without enabling MARS.
Another nice benefit of this, as seen in the sample, is that you can save changes as you loop through each item, instead of having to wait until the end of the loop (or some other such workaround), as would be needed even with MARS enabled (see here and here).
One user control can't be applied to it ownself. So open another winform and the one will appear in the toolbox.
If you want to just toggle visibility and still keep the input in DOM:
<input class="txt" type="password" [(ngModel)]="input_pw"
[style.visibility]="isHidden? 'hidden': 'visible'">
The other way around is as per answer by rrd, which is to use HTML hidden attribute. In an HTML element if hidden
attribute is set to true
browsers are supposed to hide the element from display, but the problem is that this behavior is overridden if the element has an explicit display
style mentioned.
.hasDisplay {_x000D_
display: block;_x000D_
}
_x000D_
<input class="hasDisplay" hidden value="shown" />_x000D_
<input hidden value="not shown">
_x000D_
To overcome this you can opt to use an explicit css for [hidden]
that overrides the display;
[hidden] {
display: none !important;
}
Yet another way is to have a is-hidden
class and do:
<input [class.is-hidden]="isHidden"/>
.is-hidden {
display: none;
}
If you use display: none
the element will be skipped from the static flow and no space will be allocated for the element, if you use visibility: hidden
it will be included in the flow and a space will be allocated but it will be blank space.
The important thing is to use one way across an application rather than mixing different ways thereby making the code less maintainable.
If you want to remove it from DOM
<input class="txt" type="password" [(ngModel)]="input_pw" *ngIf="!isHidden">
There is no such thing as a comprehensive UK postcode regular expression that is capable of validating a postcode. You can check that a postcode is in the correct format using a regular expression; not that it actually exists.
Postcodes are arbitrarily complex and constantly changing. For instance, the outcode W1
does not, and may never, have every number between 1 and 99, for every postcode area.
You can't expect what is there currently to be true forever. As an example, in 1990, the Post Office decided that Aberdeen was getting a bit crowded. They added a 0 to the end of AB1-5 making it AB10-50 and then created a number of postcodes in between these.
Whenever a new street is build a new postcode is created. It's part of the process for obtaining permission to build; local authorities are obliged to keep this updated with the Post Office (not that they all do).
Furthermore, as noted by a number of other users, there's the special postcodes such as Girobank, GIR 0AA, and the one for letters to Santa, SAN TA1 - you probably don't want to post anything there but it doesn't appear to be covered by any other answer.
Then, there's the BFPO postcodes, which are now changing to a more standard format. Both formats are going to be valid. Lastly, there's the overseas territories source Wikipedia.
+----------+----------------------------------------------+ | Postcode | Location | +----------+----------------------------------------------+ | AI-2640 | Anguilla | | ASCN 1ZZ | Ascension Island | | STHL 1ZZ | Saint Helena | | TDCU 1ZZ | Tristan da Cunha | | BBND 1ZZ | British Indian Ocean Territory | | BIQQ 1ZZ | British Antarctic Territory | | FIQQ 1ZZ | Falkland Islands | | GX11 1AA | Gibraltar | | PCRN 1ZZ | Pitcairn Islands | | SIQQ 1ZZ | South Georgia and the South Sandwich Islands | | TKCA 1ZZ | Turks and Caicos Islands | +----------+----------------------------------------------+
Next, you have to take into account that the UK "exported" its postcode system to many places in the world. Anything that validates a "UK" postcode will also validate the postcodes of a number of other countries.
If you want to validate a UK postcode the safest way to do it is to use a look-up of current postcodes. There are a number of options:
Ordnance Survey releases Code-Point Open under an open data licence. It'll be very slightly behind the times but it's free. This will (probably - I can't remember) not include Northern Irish data as the Ordnance Survey has no remit there. Mapping in Northern Ireland is conducted by the Ordnance Survey of Northern Ireland and they have their, separate, paid-for, Pointer product. You could use this and append the few that aren't covered fairly easily.
Royal Mail releases the Postcode Address File (PAF), this includes BFPO which I'm not sure Code-Point Open does. It's updated regularly but costs money (and they can be downright mean about it sometimes). PAF includes the full address rather than just postcodes and comes with its own Programmers Guide. The Open Data User Group (ODUG) is currently lobbying to have PAF released for free, here's a description of their position.
Lastly, there's AddressBase. This is a collaboration between Ordnance Survey, Local Authorities, Royal Mail and a matching company to create a definitive directory of all information about all UK addresses (they've been fairly successful as well). It's paid-for but if you're working with a Local Authority, government department, or government service it's free for them to use. There's a lot more information than just postcodes included.
As vim's own help on set background
says, "Setting this option does not change the background color, it tells Vim what the background color looks like. For changing the background color, see |:hi-normal|."
For example
:highlight Normal ctermfg=grey ctermbg=darkblue
will write in white on blue on your color terminal.
// Assuming "?post=1234&action=edit"
var urlParams = new URLSearchParams(window.location.search);
console.log(urlParams.has('post')); // true
console.log(urlParams.get('action')); // "edit"
console.log(urlParams.getAll('action')); // ["edit"]
console.log(urlParams.toString()); // "?post=1234&action=edit"
console.log(urlParams.append('active', '1')); // "?post=1234&action=edit&active=1"
I found a solution for how to set a global variable in a mailinglist posting via assign:
a <- "old"
test <- function () {
assign("a", "new", envir = .GlobalEnv)
}
test()
a # display the new value
If you are using Fish shell, you can leverage the string
functions:
git branch -d (git branch -l "<your pattern>" | string trim)
This is not much different from the Powershell options in some of the other answers.
Line Input works fine for small files. However, when file sizes reach around 90k, Line Input jumps all over the place and reads data in the wrong order from the source file. I tested it with different filesizes:
49k = ok
60k = ok
78k = ok
85k = ok
93k = error
101k = error
127k = error
156k = error
Lesson learned - use Scripting.FileSystemObject
Like Sunil said, this is not memory address.This is just the hashcode
To get the same @ content, you can:
If hashCode is not overridden in that class:
"@" + Integer.toHexString(obj.hashCode())
If hashCode is overridden, you get the original value with:
"@" + Integer.toHexString(System.identityHashCode(obj))
This is often confused with memory address because if you don't override hashCode(), the memory address is used to calculate the hash.
When working with graphical user interfaces, you need to remember that drawing on a pane is done in the Java AWT/Swing event queue. You can't just use the Graphics
object outside the paint()
/paintComponent()
/etc. methods.
However, you can use a technique called "Frame buffering". Basically, you need to have a BufferedImage and draw directly on it (see it's createGraphics()
method; that graphics context you can keep and reuse for multiple operations on a same BufferedImage
instance, no need to recreate it all the time, only when creating a new instance). Then, in your JPanel
's paintComponent()
, you simply need to draw the BufferedImage
instance unto the JPanel
. Using this technique, you can perform zoom, translation and rotation operations quite easily through affine transformations.
If you're using jquery, you can call this right before your radio buttons.
$('input:radio:first').attr('checked', true);
^ This will check the first radio box, but you can look at more jquery to cycle through to the one you want selected.
This is the exit status of the last executed command.
For example the command true
always returns a status of 0
and false
always returns a status of 1
:
true
echo $? # echoes 0
false
echo $? # echoes 1
From the manual: (acessible by calling man bash
in your shell)
$?
Expands to the exit status of the most recently executed foreground pipeline.
By convention an exit status of 0
means success, and non-zero return status means failure. Learn more about exit statuses on wikipedia.
There are other special variables like this, as you can see on this online manual: https://www.gnu.org/s/bash/manual/bash.html#Special-Parameters
The below method is the implementation of binary divide considering both numbers are positive. If subtraction is a concern we can implement that as well using binary operators.
-(int)binaryDivide:(int)numerator with:(int)denominator
{
if (numerator == 0 || denominator == 1) {
return numerator;
}
if (denominator == 0) {
#ifdef DEBUG
NSAssert(denominator == 0, @"denominator should be greater then 0");
#endif
return INFINITY;
}
// if (numerator <0) {
// numerator = abs(numerator);
// }
int maxBitDenom = [self getMaxBit:denominator];
int maxBitNumerator = [self getMaxBit:numerator];
int msbNumber = [self getMSB:maxBitDenom ofNumber:numerator];
int qoutient = 0;
int subResult = 0;
int remainingBits = maxBitNumerator-maxBitDenom;
if (msbNumber >= denominator) {
qoutient |=1;
subResult = msbNumber - denominator;
}
else {
subResult = msbNumber;
}
while (remainingBits>0) {
int msbBit = (numerator & (1 << (remainingBits-1)))>0 ? 1 : 0;
subResult = (subResult << 1) |msbBit;
if (subResult >= denominator) {
subResult = subResult-denominator;
qoutient = (qoutient << 1) | 1;
}
else {
qoutient = qoutient << 1;
}
remainingBits--;
}
return qoutient;
}
-(int)getMaxBit:(int)inputNumber
{
int maxBit =0;
BOOL isMaxBitSet = NO;
for (int i=0; i<sizeof(inputNumber)*8; i++) {
if (inputNumber & (1 << i) ) {
maxBit = i;
isMaxBitSet=YES;
}
}
if (isMaxBitSet) {
maxBit += 1;
}
return maxBit;
}
-(int)getMSB:(int)bits ofNumber:(int)number
{
int numbeMaxBit = [self getMaxBit:number];
return number >> (numbeMaxBit -bits);
}
I may be out fishing here, but doesn't Tomcat by default open to port 8080? Try http://localhost:8080 instead.
I would do this slightly different by applying both the UNPIVOT
and the PIVOT
functions to get the final result. The unpivot takes the values from both the totalcount
and totalamount
columns and places them into one column with multiple rows. You can then pivot on those results.:
select chardate,
Australia_totalcount as [Australia # of Transactions],
Australia_totalamount as [Australia Total $ Amount],
Austria_totalcount as [Austria # of Transactions],
Austria_totalamount as [Austria Total $ Amount]
from
(
select
numericmonth,
chardate,
country +'_'+col col,
value
from
(
select numericmonth,
country,
chardate,
cast(totalcount as numeric(10, 2)) totalcount,
cast(totalamount as numeric(10, 2)) totalamount
from mytransactions
) src
unpivot
(
value
for col in (totalcount, totalamount)
) unpiv
) s
pivot
(
sum(value)
for col in (Australia_totalcount, Australia_totalamount,
Austria_totalcount, Austria_totalamount)
) piv
order by numericmonth
See SQL Fiddle with Demo.
If you have an unknown number of country
names, then you can use dynamic SQL:
DECLARE @cols AS NVARCHAR(MAX),
@colsName AS NVARCHAR(MAX),
@query AS NVARCHAR(MAX)
select @cols = STUFF((SELECT distinct ',' + QUOTENAME(country +'_'+c.col)
from mytransactions
cross apply
(
select 'TotalCount' col
union all
select 'TotalAmount'
) c
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
select @colsName
= STUFF((SELECT distinct ', ' + QUOTENAME(country +'_'+c.col)
+' as ['
+ country + case when c.col = 'TotalCount' then ' # of Transactions]' else 'Total $ Amount]' end
from mytransactions
cross apply
(
select 'TotalCount' col
union all
select 'TotalAmount'
) c
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set @query
= 'SELECT chardate, ' + @colsName + '
from
(
select
numericmonth,
chardate,
country +''_''+col col,
value
from
(
select numericmonth,
country,
chardate,
cast(totalcount as numeric(10, 2)) totalcount,
cast(totalamount as numeric(10, 2)) totalamount
from mytransactions
) src
unpivot
(
value
for col in (totalcount, totalamount)
) unpiv
) s
pivot
(
sum(value)
for col in (' + @cols + ')
) p
order by numericmonth'
execute(@query)
Both give the result:
| CHARDATE | AUSTRALIA # OF TRANSACTIONS | AUSTRALIA TOTAL $ AMOUNT | AUSTRIA # OF TRANSACTIONS | AUSTRIA TOTAL $ AMOUNT |
--------------------------------------------------------------------------------------------------------------------------------------
| Jul-12 | 36 | 699.96 | 11 | 257.82 |
| Aug-12 | 44 | 1368.71 | 5 | 126.55 |
| Sep-12 | 52 | 1161.33 | 7 | 92.11 |
| Oct-12 | 50 | 1099.84 | 12 | 103.56 |
| Nov-12 | 38 | 1078.94 | 21 | 377.68 |
| Dec-12 | 63 | 1668.23 | 3 | 14.35 |
$query = "ALTER TABLE `" . $table_prefix . "posts_to_bookmark`
ADD COLUMN `ping_status` INT(1) NOT NULL
AFTER `<TABLE COLUMN BEFORE THIS COLUMN>`";
I believe you need to have ADD COLUMN
and use AFTER
, not BEFORE
.
In case you want to place column at the beginning of a table, use the FIRST
statement:
$query = "ALTER TABLE `" . $table_prefix . "posts_to_bookmark`
ADD COLUMN `ping_status` INT(1) NOT NULL
FIRST";
This is guesswork, but you may need to supply some or all of the floating point related switches for the link stage as well.
function getdatetime() {
d = new Date();
return (1e3-~d.getUTCMonth()*10+d.toUTCString()+1e3+d/1)
.replace(/1(..)..*?(\d+)\D+(\d+).(\S+).*(...)/,'$3-$1-$2T$4.$5Z')
.replace(/-(\d)T/,'-0$1T');
}
I found the basics on Stack Overflow somewhere (I believe it was part of some other Stack Exchange code golfing), and I improved it so it works on Internet Explorer 10 or earlier as well. It's ugly, but it gets the job done.
Try this
git config user.name
git config command stores and gives all the information.
git config -l
This commands gives you all the required info that you want.
You can change the information using
git config --global user.name "<Your-name>"
Similarly you can change many info shown to you using -l
option.
How about simply (Please note, come up with a better name for the class name this is simply an example):
.centerText{
text-align: center;
}
<div>
<table style="width:100%">
<tbody>
<tr>
<td class="centerText">Cell 1</td>
<td>Cell 2</td>
</tr>
<tr>
<td class="centerText">Cell 3</td>
<td>Cell 4</td>
</tr>
</tbody>
</table>
</div>
Example here
You can place the css
in a separate file, which is recommended.
In my example, I created a file called styles.css
and placed my css
rules in it.
Then include it in the html document in the <head>
section as follows:
<head>
<link href="styles.css" rel="stylesheet" type="text/css">
</head>
The alternative, not creating a seperate css file, not recommended at all...
Create <style>
block in your <head>
in the html document. Then just place your rules there.
<head>
<style type="text/css">
.centerText{
text-align: center;
}
</style>
</head>
Use regular expression is best way to doing this as already mentioned by ashish sahu
public int getInt(String s){
return Integer.parseInt(s.replaceAll("[\\D]", ""));
}
I actually had this kind of problem and I solve it by these steps:
Get the bundle of root CA certificates from here: https://curl.haxx.se/ca/cacert.pem and save it on local
Find the php.ini
file
Set the curl.cainfo
to be the path of the certificates. So it will something like:
curl.cainfo = /path/of/the/keys/cacert.pem
This is for react-native, but login will work for all types.
isTokenExpired = async () => {
try {
const LoginTokenValue = await AsyncStorage.getItem('LoginTokenValue');
if (JSON.parse(LoginTokenValue).RememberMe) {
const { exp } = JwtDecode(LoginTokenValue);
if (exp < (new Date().getTime() + 1) / 1000) {
this.handleSetTimeout();
return false;
} else {
//Navigate inside the application
return true;
}
} else {
//Navigate to the login page
}
} catch (err) {
console.log('Spalsh -> isTokenExpired -> err', err);
//Navigate to the login page
return false;
}
}
Use pyplot.text()
(import matplotlib.pyplot as plt
)
import matplotlib.pyplot as plt
x=[1,2,3]
y=[9,8,7]
plt.plot(x,y)
for a,b in zip(x, y):
plt.text(a, b, str(b))
plt.show()
Short answer, unpacking tuples from a list in a for loop works. enumerate() creates a tuple using the current index and the entire current item, such as (0, ('bob', 3))
I created some test code to demonstrate this:
list = [('bob', 3), ('alice', 0), ('john', 5), ('chris', 4), ('alex', 2)]
print("Displaying Enumerated List")
for name, num in enumerate(list):
print("{0}: {1}".format(name, num))
print("Display Normal Iteration though List")
for name, num in list:
print("{0}: {1}".format(name, num))
The simplicity of Tuple unpacking is probably one of my favourite things about Python :D
I just use the "New Class" dialog in Eclipse and set the base class as Activity. I'm not aware of any other way to do this. What other method would you expect to be available?
In C++ the std::string class implements the comparison operators, so you can perform the comparison using ==
just as you would expect:
if (string == "add") { ... }
When used properly, operator overloading is an excellent C++ feature.
I got the same problem, nothing worked for me from the above ans but now I fixed it by
just remove python.pip
and sqlite3
and reinstall
sudo apt-get remove python.pip
sudo apt-get remove sqlite3
now install it again
sudo apt-get install python.pip
sudo apt-get install sqlite3
in my case while installing sqlite3
again it showed some error
then I typed
sqlite3
on terminal to check if it was removed or not and it started unpacking it
once the sqlite3
is installed
fireup terminal and write
sqlite3
database.db
(to create a database)I'm sure this will definitely help you
If your variable is an argument, you can simply use %~dpn
(for paths) or %~n
(for names only) followed by the argument number, so you don't have to worry for varying extension lengths.
For instance %~dpn0
will return the path of the batch file without its extension, %~dpn1
will be %1
without extension, etc.
Whereas %~n0
will return the name of the batch file without its extension, %~n1
will be %1
without path and extension, etc.
Application.Sum often does not work well in my experience (or at least the VBA developer environment does not like it for whatever reason).
The function that works best for me is Excel.WorksheetFunction.Sum()
Example:
Dim Report As Worksheet 'Set up your new worksheet variable.
Set Report = Excel.ActiveSheet 'Assign the active sheet to the variable.
Report.Cells(11, 1).Value = Excel.WorksheetFunction.Sum(Report.Range("A1:A10")) 'Add the function result.
The other method which you were looking for I think is to place the function directly into the cell. This can be done by inputting the function string into the cell value. Here is an example that provides the same result as above, except the cell value is given the function and not the result of the function:
Dim Report As Worksheet 'Set up your new worksheet variable.
Set Report = Excel.ActiveSheet 'Assign the active sheet to the variable.
Report.Cells(11, 1).Value = "=Sum(A1:A10)" 'Add the function.
I am very familiar with Mercurial's locking code (as of 1.9.1). The above advice is good, but I'd add that:
(For the curious: I haven't yet been able to catch the cause of this problem, but suspect it's either an older version of Mercurial accessing the repository or a problem in Python's socket.gethostname() call on certain versions of Windows.)
It looks like the CSRF (Cross Site Request Forgery) protection in your Spring application is enabled. Actually it is enabled by default.
According to spring.io:
When should you use CSRF protection? Our recommendation is to use CSRF protection for any request that could be processed by a browser by normal users. If you are only creating a service that is used by non-browser clients, you will likely want to disable CSRF protection.
So to disable it:
@Configuration
public class RestSecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http.csrf().disable();
}
}
If you want though to keep CSRF protection enabled then you have to include in your form the csrftoken
. You can do it like this:
<form .... >
....other fields here....
<input type="hidden" name="${_csrf.parameterName}" value="${_csrf.token}"/>
</form>
You can even include the CSRF token in the form's action:
<form action="./upload?${_csrf.parameterName}=${_csrf.token}" method="post" enctype="multipart/form-data">
You don't have the namespace the Login class is in as a reference.
Add the following to the form that uses the Login
class:
using FootballLeagueSystem;
When you want to use a class in another namespace, you have to tell the compiler where to find it. In this case, Login
is inside the FootballLeagueSystem
namespace, or : FootballLeagueSystem.Login
is the fully qualified namespace.
As a commenter pointed out, you declare the Login class inside the FootballLeagueSystem
namespace, but you're using it in the FootballLeague
namespace.
FIRST UPDATE: Before you try this ever in a production environment (not advised), read this first: http://www.javaspecialists.eu/archive/Issue237.html Starting from Java 9, the solution as described won't work anymore, because now Java will store strings as byte[] by default.
SECOND UPDATE: As of 2016-10-25, on my AMDx64 8core and source 1.8, there is no difference between using 'charAt' and field access. It appears that the jvm is sufficiently optimized to inline and streamline any 'string.charAt(n)' calls.
THIRD UPDATE: As of 2020-09-07, on my Ryzen 1950-X 16 core and source 1.14, 'charAt1' is 9 times slower than field access and 'charAt2' is 4 times slower than field access. Field access is back as the clear winner. Note than the program will need to use byte[] access for Java 9+ version jvms.
It all depends on the length of the String
being inspected. If, as the question says, it is for long strings, the fastest way to inspect the string is to use reflection to access the backing char[]
of the string.
A fully randomized benchmark with JDK 8 (win32 and win64) on an 64 AMD Phenom II 4 core 955 @ 3.2 GHZ (in both client mode and server mode) with 9 different techniques (see below!) shows that using String.charAt(n)
is the fastest for small strings and that using reflection
to access the String backing array is almost twice as fast for large strings.
9 different optimization techniques are tried.
All string contents are randomized
The test are done for string sizes in multiples of two starting with 0,1,2,4,8,16 etc.
The tests are done 1,000 times per string size
The tests are shuffled into random order each time. In other words, the tests are done in random order every time they are done, over 1000 times over.
The entire test suite is done forwards, and backwards, to show the effect of JVM warmup on optimization and times.
The entire suite is done twice, once in -client
mode and the other in -server
mode.
For strings 1 to 256 characters in length, calling string.charAt(i)
wins with an average processing of 13.4 million to 588 million characters per second.
Also, it is overall 5.5% faster (client) and 13.9% (server) like this:
for (int i = 0; i < data.length(); i++) {
if (data.charAt(i) <= ' ') {
doThrow();
}
}
than like this with a local final length variable:
final int len = data.length();
for (int i = 0; i < len; i++) {
if (data.charAt(i) <= ' ') {
doThrow();
}
}
For long strings, 512 to 256K characters length, using reflection to access the String's backing array is fastest. This technique is almost twice as fast as String.charAt(i) (178% faster). The average speed over this range was 1.111 billion characters per second.
The Field must be obtained ahead of time and then it can be re-used in the library on different strings. Interestingly, unlike the code above, with Field access, it is 9% faster to have a local final length variable than to use 'chars.length' in the loop check. Here is how Field access can be setup as fastest:
final Field field = String.class.getDeclaredField("value");
field.setAccessible(true);
try {
final char[] chars = (char[]) field.get(data);
final int len = chars.length;
for (int i = 0; i < len; i++) {
if (chars[i] <= ' ') {
doThrow();
}
}
return len;
} catch (Exception ex) {
throw new RuntimeException(ex);
}
Field access starting winning after 32 character length strings in server mode on a 64 bit Java machine on my AMD 64 machine. That was not seen until 512 characters length in client mode.
Also worth noting I think, when I was running JDK 8 (32 bit build) in server mode, the overall performance was 7% slower for both large and small strings. This was with build 121 Dec 2013 of JDK 8 early release. So, for now, it seems that 32 bit server mode is slower than 32 bit client mode.
That being said ... it seems the only server mode that is worth invoking is on a 64 bit machine. Otherwise it actually hampers performance.
For 32 bit build running in -server mode
on an AMD64, I can say this:
Also worth saying, String.chars() (Stream and the parallel version) are a bust. Way slower than any other way. The Streams
API is a rather slow way to perform general string operations.
Java String could have predicate accepting optimized methods such as contains(predicate), forEach(consumer), forEachWithIndex(consumer). Thus, without the need for the user to know the length or repeat calls to String methods, these could help parsing libraries beep-beep beep
speedup.
Keep dreaming :)
Happy Strings!
~SH
"charAt1" -- CHECK THE STRING CONTENTS THE USUAL WAY:
int charAtMethod1(final String data) {
final int len = data.length();
for (int i = 0; i < len; i++) {
if (data.charAt(i) <= ' ') {
doThrow();
}
}
return len;
}
"charAt2" -- SAME AS ABOVE BUT USE String.length() INSTEAD OF MAKING A FINAL LOCAL int FOR THE LENGTh
int charAtMethod2(final String data) {
for (int i = 0; i < data.length(); i++) {
if (data.charAt(i) <= ' ') {
doThrow();
}
}
return data.length();
}
"stream" -- USE THE NEW JAVA-8 String's IntStream AND PASS IT A PREDICATE TO DO THE CHECKING
int streamMethod(final String data, final IntPredicate predicate) {
if (data.chars().anyMatch(predicate)) {
doThrow();
}
return data.length();
}
"streamPara" -- SAME AS ABOVE, BUT OH-LA-LA - GO PARALLEL!!!
// avoid this at all costs
int streamParallelMethod(final String data, IntPredicate predicate) {
if (data.chars().parallel().anyMatch(predicate)) {
doThrow();
}
return data.length();
}
"reuse" -- REFILL A REUSABLE char[] WITH THE STRINGS CONTENTS
int reuseBuffMethod(final char[] reusable, final String data) {
final int len = data.length();
data.getChars(0, len, reusable, 0);
for (int i = 0; i < len; i++) {
if (reusable[i] <= ' ') {
doThrow();
}
}
return len;
}
"new1" -- OBTAIN A NEW COPY OF THE char[] FROM THE STRING
int newMethod1(final String data) {
final int len = data.length();
final char[] copy = data.toCharArray();
for (int i = 0; i < len; i++) {
if (copy[i] <= ' ') {
doThrow();
}
}
return len;
}
"new2" -- SAME AS ABOVE, BUT USE "FOR-EACH"
int newMethod2(final String data) {
for (final char c : data.toCharArray()) {
if (c <= ' ') {
doThrow();
}
}
return data.length();
}
"field1" -- FANCY!! OBTAIN FIELD FOR ACCESS TO THE STRING'S INTERNAL char[]
int fieldMethod1(final Field field, final String data) {
try {
final char[] chars = (char[]) field.get(data);
final int len = chars.length;
for (int i = 0; i < len; i++) {
if (chars[i] <= ' ') {
doThrow();
}
}
return len;
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
"field2" -- SAME AS ABOVE, BUT USE "FOR-EACH"
int fieldMethod2(final Field field, final String data) {
final char[] chars;
try {
chars = (char[]) field.get(data);
} catch (Exception ex) {
throw new RuntimeException(ex);
}
for (final char c : chars) {
if (c <= ' ') {
doThrow();
}
}
return chars.length;
}
-client
MODE (forwards and backwards tests combined)Note: that the -client mode with Java 32 bit and -server mode with Java 64 bit are the same as below on my AMD64 machine.
Size WINNER charAt1 charAt2 stream streamPar reuse new1 new2 field1 field2
1 charAt 77.0 72.0 462.0 584.0 127.5 89.5 86.0 159.5 165.0
2 charAt 38.0 36.5 284.0 32712.5 57.5 48.3 50.3 89.0 91.5
4 charAt 19.5 18.5 458.6 3169.0 33.0 26.8 27.5 54.1 52.6
8 charAt 9.8 9.9 100.5 1370.9 17.3 14.4 15.0 26.9 26.4
16 charAt 6.1 6.5 73.4 857.0 8.4 8.2 8.3 13.6 13.5
32 charAt 3.9 3.7 54.8 428.9 5.0 4.9 4.7 7.0 7.2
64 charAt 2.7 2.6 48.2 232.9 3.0 3.2 3.3 3.9 4.0
128 charAt 2.1 1.9 43.7 138.8 2.1 2.6 2.6 2.4 2.6
256 charAt 1.9 1.6 42.4 90.6 1.7 2.1 2.1 1.7 1.8
512 field1 1.7 1.4 40.6 60.5 1.4 1.9 1.9 1.3 1.4
1,024 field1 1.6 1.4 40.0 45.6 1.2 1.9 2.1 1.0 1.2
2,048 field1 1.6 1.3 40.0 36.2 1.2 1.8 1.7 0.9 1.1
4,096 field1 1.6 1.3 39.7 32.6 1.2 1.8 1.7 0.9 1.0
8,192 field1 1.6 1.3 39.6 30.5 1.2 1.8 1.7 0.9 1.0
16,384 field1 1.6 1.3 39.8 28.4 1.2 1.8 1.7 0.8 1.0
32,768 field1 1.6 1.3 40.0 26.7 1.3 1.8 1.7 0.8 1.0
65,536 field1 1.6 1.3 39.8 26.3 1.3 1.8 1.7 0.8 1.0
131,072 field1 1.6 1.3 40.1 25.4 1.4 1.9 1.8 0.8 1.0
262,144 field1 1.6 1.3 39.6 25.2 1.5 1.9 1.9 0.8 1.0
-server
MODE (forwards and backwards tests combined)Note: this is the test for Java 32 bit running in server mode on an AMD64. The server mode for Java 64 bit was the same as Java 32 bit in client mode except that Field access starting winning after 32 characters size.
Size WINNER charAt1 charAt2 stream streamPar reuse new1 new2 field1 field2
1 charAt 74.5 95.5 524.5 783.0 90.5 102.5 90.5 135.0 151.5
2 charAt 48.5 53.0 305.0 30851.3 59.3 57.5 52.0 88.5 91.8
4 charAt 28.8 32.1 132.8 2465.1 37.6 33.9 32.3 49.0 47.0
8 new2 18.0 18.6 63.4 1541.3 18.5 17.9 17.6 25.4 25.8
16 new2 14.0 14.7 129.4 1034.7 12.5 16.2 12.0 16.0 16.6
32 new2 7.8 9.1 19.3 431.5 8.1 7.0 6.7 7.9 8.7
64 reuse 6.1 7.5 11.7 204.7 3.5 3.9 4.3 4.2 4.1
128 reuse 6.8 6.8 9.0 101.0 2.6 3.0 3.0 2.6 2.7
256 field2 6.2 6.5 6.9 57.2 2.4 2.7 2.9 2.3 2.3
512 reuse 4.3 4.9 5.8 28.2 2.0 2.6 2.6 2.1 2.1
1,024 charAt 2.0 1.8 5.3 17.6 2.1 2.5 3.5 2.0 2.0
2,048 charAt 1.9 1.7 5.2 11.9 2.2 3.0 2.6 2.0 2.0
4,096 charAt 1.9 1.7 5.1 8.7 2.1 2.6 2.6 1.9 1.9
8,192 charAt 1.9 1.7 5.1 7.6 2.2 2.5 2.6 1.9 1.9
16,384 charAt 1.9 1.7 5.1 6.9 2.2 2.5 2.5 1.9 1.9
32,768 charAt 1.9 1.7 5.1 6.1 2.2 2.5 2.5 1.9 1.9
65,536 charAt 1.9 1.7 5.1 5.5 2.2 2.4 2.4 1.9 1.9
131,072 charAt 1.9 1.7 5.1 5.4 2.3 2.5 2.5 1.9 1.9
262,144 charAt 1.9 1.7 5.1 5.1 2.3 2.5 2.5 1.9 1.9
(to test on Java 7 and earlier, remove the two streams tests)
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Random;
import java.util.function.IntPredicate;
/**
* @author Saint Hill <http://stackoverflow.com/users/1584255/saint-hill>
*/
public final class TestStrings {
// we will not test strings longer than 512KM
final int MAX_STRING_SIZE = 1024 * 256;
// for each string size, we will do all the tests
// this many times
final int TRIES_PER_STRING_SIZE = 1000;
public static void main(String[] args) throws Exception {
new TestStrings().run();
}
void run() throws Exception {
// double the length of the data until it reaches MAX chars long
// 0,1,2,4,8,16,32,64,128,256 ...
final List<Integer> sizes = new ArrayList<>();
for (int n = 0; n <= MAX_STRING_SIZE; n = (n == 0 ? 1 : n * 2)) {
sizes.add(n);
}
// CREATE RANDOM (FOR SHUFFLING ORDER OF TESTS)
final Random random = new Random();
System.out.println("Rate in nanoseconds per character inspected.");
System.out.printf("==== FORWARDS (tries per size: %s) ==== \n", TRIES_PER_STRING_SIZE);
printHeadings(TRIES_PER_STRING_SIZE, random);
for (int size : sizes) {
reportResults(size, test(size, TRIES_PER_STRING_SIZE, random));
}
// reverse order or string sizes
Collections.reverse(sizes);
System.out.println("");
System.out.println("Rate in nanoseconds per character inspected.");
System.out.printf("==== BACKWARDS (tries per size: %s) ==== \n", TRIES_PER_STRING_SIZE);
printHeadings(TRIES_PER_STRING_SIZE, random);
for (int size : sizes) {
reportResults(size, test(size, TRIES_PER_STRING_SIZE, random));
}
}
///
///
/// METHODS OF CHECKING THE CONTENTS
/// OF A STRING. ALWAYS CHECKING FOR
/// WHITESPACE (CHAR <=' ')
///
///
// CHECK THE STRING CONTENTS
int charAtMethod1(final String data) {
final int len = data.length();
for (int i = 0; i < len; i++) {
if (data.charAt(i) <= ' ') {
doThrow();
}
}
return len;
}
// SAME AS ABOVE BUT USE String.length()
// instead of making a new final local int
int charAtMethod2(final String data) {
for (int i = 0; i < data.length(); i++) {
if (data.charAt(i) <= ' ') {
doThrow();
}
}
return data.length();
}
// USE new Java-8 String's IntStream
// pass it a PREDICATE to do the checking
int streamMethod(final String data, final IntPredicate predicate) {
if (data.chars().anyMatch(predicate)) {
doThrow();
}
return data.length();
}
// OH LA LA - GO PARALLEL!!!
int streamParallelMethod(final String data, IntPredicate predicate) {
if (data.chars().parallel().anyMatch(predicate)) {
doThrow();
}
return data.length();
}
// Re-fill a resuable char[] with the contents
// of the String's char[]
int reuseBuffMethod(final char[] reusable, final String data) {
final int len = data.length();
data.getChars(0, len, reusable, 0);
for (int i = 0; i < len; i++) {
if (reusable[i] <= ' ') {
doThrow();
}
}
return len;
}
// Obtain a new copy of char[] from String
int newMethod1(final String data) {
final int len = data.length();
final char[] copy = data.toCharArray();
for (int i = 0; i < len; i++) {
if (copy[i] <= ' ') {
doThrow();
}
}
return len;
}
// Obtain a new copy of char[] from String
// but use FOR-EACH
int newMethod2(final String data) {
for (final char c : data.toCharArray()) {
if (c <= ' ') {
doThrow();
}
}
return data.length();
}
// FANCY!
// OBTAIN FIELD FOR ACCESS TO THE STRING'S
// INTERNAL CHAR[]
int fieldMethod1(final Field field, final String data) {
try {
final char[] chars = (char[]) field.get(data);
final int len = chars.length;
for (int i = 0; i < len; i++) {
if (chars[i] <= ' ') {
doThrow();
}
}
return len;
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
// same as above but use FOR-EACH
int fieldMethod2(final Field field, final String data) {
final char[] chars;
try {
chars = (char[]) field.get(data);
} catch (Exception ex) {
throw new RuntimeException(ex);
}
for (final char c : chars) {
if (c <= ' ') {
doThrow();
}
}
return chars.length;
}
/**
*
* Make a list of tests. We will shuffle a copy of this list repeatedly
* while we repeat this test.
*
* @param data
* @return
*/
List<Jobber> makeTests(String data) throws Exception {
// make a list of tests
final List<Jobber> tests = new ArrayList<Jobber>();
tests.add(new Jobber("charAt1") {
int check() {
return charAtMethod1(data);
}
});
tests.add(new Jobber("charAt2") {
int check() {
return charAtMethod2(data);
}
});
tests.add(new Jobber("stream") {
final IntPredicate predicate = new IntPredicate() {
public boolean test(int value) {
return value <= ' ';
}
};
int check() {
return streamMethod(data, predicate);
}
});
tests.add(new Jobber("streamPar") {
final IntPredicate predicate = new IntPredicate() {
public boolean test(int value) {
return value <= ' ';
}
};
int check() {
return streamParallelMethod(data, predicate);
}
});
// Reusable char[] method
tests.add(new Jobber("reuse") {
final char[] cbuff = new char[MAX_STRING_SIZE];
int check() {
return reuseBuffMethod(cbuff, data);
}
});
// New char[] from String
tests.add(new Jobber("new1") {
int check() {
return newMethod1(data);
}
});
// New char[] from String
tests.add(new Jobber("new2") {
int check() {
return newMethod2(data);
}
});
// Use reflection for field access
tests.add(new Jobber("field1") {
final Field field;
{
field = String.class.getDeclaredField("value");
field.setAccessible(true);
}
int check() {
return fieldMethod1(field, data);
}
});
// Use reflection for field access
tests.add(new Jobber("field2") {
final Field field;
{
field = String.class.getDeclaredField("value");
field.setAccessible(true);
}
int check() {
return fieldMethod2(field, data);
}
});
return tests;
}
/**
* We use this class to keep track of test results
*/
abstract class Jobber {
final String name;
long nanos;
long chars;
long runs;
Jobber(String name) {
this.name = name;
}
abstract int check();
final double nanosPerChar() {
double charsPerRun = chars / runs;
long nanosPerRun = nanos / runs;
return charsPerRun == 0 ? nanosPerRun : nanosPerRun / charsPerRun;
}
final void run() {
runs++;
long time = System.nanoTime();
chars += check();
nanos += System.nanoTime() - time;
}
}
// MAKE A TEST STRING OF RANDOM CHARACTERS A-Z
private String makeTestString(int testSize, char start, char end) {
Random r = new Random();
char[] data = new char[testSize];
for (int i = 0; i < data.length; i++) {
data[i] = (char) (start + r.nextInt(end));
}
return new String(data);
}
// WE DO THIS IF WE FIND AN ILLEGAL CHARACTER IN THE STRING
public void doThrow() {
throw new RuntimeException("Bzzzt -- Illegal Character!!");
}
/**
* 1. get random string of correct length 2. get tests (List<Jobber>) 3.
* perform tests repeatedly, shuffling each time
*/
List<Jobber> test(int size, int tries, Random random) throws Exception {
String data = makeTestString(size, 'A', 'Z');
List<Jobber> tests = makeTests(data);
List<Jobber> copy = new ArrayList<>(tests);
while (tries-- > 0) {
Collections.shuffle(copy, random);
for (Jobber ti : copy) {
ti.run();
}
}
// check to make sure all char counts the same
long runs = tests.get(0).runs;
long count = tests.get(0).chars;
for (Jobber ti : tests) {
if (ti.runs != runs && ti.chars != count) {
throw new Exception("Char counts should match if all correct algorithms");
}
}
return tests;
}
private void printHeadings(final int TRIES_PER_STRING_SIZE, final Random random) throws Exception {
System.out.print(" Size");
for (Jobber ti : test(0, TRIES_PER_STRING_SIZE, random)) {
System.out.printf("%9s", ti.name);
}
System.out.println("");
}
private void reportResults(int size, List<Jobber> tests) {
System.out.printf("%6d", size);
for (Jobber ti : tests) {
System.out.printf("%,9.2f", ti.nanosPerChar());
}
System.out.println("");
}
}
I have been an hour with headache trying to close the infoWindow! My final (and working) option has been closing the infoWindow with a SetTimeout (a few seconds) It's not the best way... but it works easely
marker.addListener('click', function() {
infowindow.setContent(html);
infowindow.open(map, this);
setTimeout(function(){
infowindow.close();
},5000);
});
Here is my approach:
labels = [0, 0, 1, 1]
from collections import Counter
from scipy import stats
stats.entropy(list(Counter(labels).values()), base=2)
It's simpler than I initially thought.. Basically you have a page that does nothing, until the data you want to send is available (say, a new message arrives).
Here is a really basic example, which sends a simple string after 2-10 seconds. 1 in 3 chance of returning an error 404 (to show error handling in the coming Javascript example)
msgsrv.php
<?php
if(rand(1,3) == 1){
/* Fake an error */
header("HTTP/1.0 404 Not Found");
die();
}
/* Send a string after a random number of seconds (2-10) */
sleep(rand(2,10));
echo("Hi! Have a random number: " . rand(1,10));
?>
Note: With a real site, running this on a regular web-server like Apache will quickly tie up all the "worker threads" and leave it unable to respond to other requests.. There are ways around this, but it is recommended to write a "long-poll server" in something like Python's twisted, which does not rely on one thread per request. cometD is an popular one (which is available in several languages), and Tornado is a new framework made specifically for such tasks (it was built for FriendFeed's long-polling code)... but as a simple example, Apache is more than adequate! This script could easily be written in any language (I chose Apache/PHP as they are very common, and I happened to be running them locally)
Then, in Javascript, you request the above file (msg_srv.php
), and wait for a response. When you get one, you act upon the data. Then you request the file and wait again, act upon the data (and repeat)
What follows is an example of such a page.. When the page is loaded, it sends the initial request for the msgsrv.php
file.. If it succeeds, we append the message to the #messages
div, then after 1 second we call the waitForMsg function again, which triggers the wait.
The 1 second setTimeout()
is a really basic rate-limiter, it works fine without this, but if msgsrv.php
always returns instantly (with a syntax error, for example) - you flood the browser and it can quickly freeze up. This would better be done checking if the file contains a valid JSON response, and/or keeping a running total of requests-per-minute/second, and pausing appropriately.
If the page errors, it appends the error to the #messages
div, waits 15 seconds and then tries again (identical to how we wait 1 second after each message)
The nice thing about this approach is it is very resilient. If the clients internet connection dies, it will timeout, then try and reconnect - this is inherent in how long polling works, no complicated error-handling is required
Anyway, the long_poller.htm
code, using the jQuery framework:
<html>
<head>
<title>BargePoller</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js" type="text/javascript" charset="utf-8"></script>
<style type="text/css" media="screen">
body{ background:#000;color:#fff;font-size:.9em; }
.msg{ background:#aaa;padding:.2em; border-bottom:1px #000 solid}
.old{ background-color:#246499;}
.new{ background-color:#3B9957;}
.error{ background-color:#992E36;}
</style>
<script type="text/javascript" charset="utf-8">
function addmsg(type, msg){
/* Simple helper to add a div.
type is the name of a CSS class (old/new/error).
msg is the contents of the div */
$("#messages").append(
"<div class='msg "+ type +"'>"+ msg +"</div>"
);
}
function waitForMsg(){
/* This requests the url "msgsrv.php"
When it complete (or errors)*/
$.ajax({
type: "GET",
url: "msgsrv.php",
async: true, /* If set to non-async, browser shows page as "Loading.."*/
cache: false,
timeout:50000, /* Timeout in ms */
success: function(data){ /* called when request to barge.php completes */
addmsg("new", data); /* Add response to a .msg div (with the "new" class)*/
setTimeout(
waitForMsg, /* Request next message */
1000 /* ..after 1 seconds */
);
},
error: function(XMLHttpRequest, textStatus, errorThrown){
addmsg("error", textStatus + " (" + errorThrown + ")");
setTimeout(
waitForMsg, /* Try again after.. */
15000); /* milliseconds (15seconds) */
}
});
};
$(document).ready(function(){
waitForMsg(); /* Start the inital request */
});
</script>
</head>
<body>
<div id="messages">
<div class="msg old">
BargePoll message requester!
</div>
</div>
</body>
</html>
Below is an example of how to update the value in the array of objects more dynamically.
Person.findOneAndUpdate({_id: id},
{
"$set": {[`items.$[outer].${propertyName}`]: value}
},
{
"arrayFilters": [{ "outer.id": itemId }]
},
function(err, response) {
...
})
Note that by doing it that way, you would be able to update even deeper levels of the nested array by adding additional arrayFilters
and positional operator like so:
"$set": {[`items.$[outer].innerItems.$[inner].${propertyName}`]: value}
"arrayFilters":[{ "outer.id": itemId },{ "inner.id": innerItemId }]
More usage can be found in the official docs.
You can use Random.Next(int maxValue)
:
Return: A 32-bit signed integer greater than or equal to zero, and less than maxValue; that is, the range of return values ordinarily includes zero but not maxValue. However, if maxValue equals zero, maxValue is returned.
var r = new Random();
// print random integer >= 0 and < 100
Console.WriteLine(r.Next(100));
For this case however you could use Random.Next(int minValue, int maxValue)
, like this:
// print random integer >= 1 and < 101
Console.WriteLine(r.Next(1, 101);)
// or perhaps (if you have this specific case)
Console.WriteLine(r.Next(100) + 1);
I have the same problem....
I change my project name and i have this problem...my solution was the checking project refences and use /
in my web.xml (instead of /*
)
<script type="text/JavaScript">
function validate()
{
if( document.form1.quali.value == "-1" )
{
alert( "Please select qualification!" );
return false;
}
}
</script>
<form name="form1" method="post" action="" onsubmit="return validate(this);">
<select name="quali" id="quali" ">
<option value="-1" selected="selected">select</option>
<option value="1">Graduate</option>
<option value="2">Post Graduate</option>
</select>
</form>
// this code works 110% tested by me after many complex jquery method validation but it is simple javascript method plz try this if u fail in drop down required validation//
I know it's an old question now but i thought it might help others. I wanted something a little easier to implement for a few apps i had, so i made a class for this. You can download it here if you want: https://github.com/sdernley/iOSTextFieldHandler
It's as simple as setting all of the UITextFields to have a delegate of self
textfieldname.delegate = self;
And then adding this to your view controller with the name of your scrollView and submit button
- (void)textFieldDidBeginEditing:(UITextField *)textField
{
[iOSTextFieldHandler TextboxKeyboardMover:containingScrollView tf:textField btn:btnSubmit];
}
buttonTint worked for me try
android:buttonTint="@color/white"
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:id="@+id/agreeCheckBox"
android:text="@string/i_agree_to_terms_s"
android:buttonTint="@color/white"
android:layout_below="@+id/avoid_spam_text"/>
Try this, it's simple enough to justify the time...
This is for Win32 API, written in C. Translate it as you need...
case WM_NOTIFY:{
HWND X=FindWindow("#32770",NULL);
if(GetParent(X)==H_frame){int Px,Py,Sx,Sy; RECT R1,R2;
GetWindowRect(hwnd,&R1); GetWindowRect(X,&R2);
Sx=R2.right-R2.left,Px=R1.left+(R1.right-R1.left)/2-Sx/2;
Sy=R2.bottom-R2.top,Py=R1.top+(R1.bottom-R1.top)/2-Sy/2;
MoveWindow(X,Px,Py,Sx,Sy,1);
}
} break;
Add that to the WndProc code... You can set position as you like, in this case it just centres over the main program window. It will do this for any messagebox, or file open/save dialog, and likely some other native controls. I'm not sure, but I think you may need to include COMMCTRL or COMMDLG to use this, at least, you will if you want open/save dialogs.
I experimented with looking at the notify codes and hwndFrom of NMHDR, then decided it was just as effective, and far easier, not to. If you really want to be very specific, tell FindWindow to look for a unique caption (title) you give to the window you want it to find.
This fires before the messagebox is drawn onscreen, so if you set a global flag to indicate when action is done by your code, and look for a unique caption, you be sure that actions you take will only occur once (there will likely be multiple notifiers). I haven't explored this in detail, but I managed get CreateWindow to put an edit box on a messagebox dialog. It looked as out of place as a rat's ear grafted onto the spine of a cloned pig, but it works. Doing things this way may be far easier than having to roll your own.
Crow.
EDIT: Small correction to make sure that the right window is handled. Make sure that parent handles agree throughout, and this should work ok. It does for me, even with two instances of the same program...
The command, that can be executed:
svn up --username newUsername
Works perfectly ;)
P.S. Just a hint: "--username" option can be executed on any "svn" command, not just update.
I felt the below approach is very easy.
I have declared an interface for callback
public interface AsyncResponse {
void processFinish(Object output);
}
Then created asynchronous Task for responding all type of parallel requests
public class MyAsyncTask extends AsyncTask<Object, Object, Object> {
public AsyncResponse delegate = null;//Call back interface
public MyAsyncTask(AsyncResponse asyncResponse) {
delegate = asyncResponse;//Assigning call back interfacethrough constructor
}
@Override
protected Object doInBackground(Object... params) {
//My Background tasks are written here
return {resutl Object}
}
@Override
protected void onPostExecute(Object result) {
delegate.processFinish(result);
}
}
Then Called the asynchronous task when clicking a button in activity Class.
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
Button mbtnPress = (Button) findViewById(R.id.btnPress);
mbtnPress.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
MyAsyncTask asyncTask =new MyAsyncTask(new AsyncResponse() {
@Override
public void processFinish(Object output) {
Log.d("Response From Asynchronous task:", (String) output);
mbtnPress.setText((String) output);
}
});
asyncTask.execute(new Object[] { "Youe request to aynchronous task class is giving here.." });
}
});
}
}
Thanks
You can also use Scanner :
Scanner s = new Scanner(MyString);
s.nextInt();
You can also do it this way without the need of Linq:
List<int> numbers = new List<int>( Array.ConvertAll(sNumbers.Split(','), int.Parse) );
// Uses Linq
var numbers = Array.ConvertAll(sNumbers.Split(','), int.Parse).ToList();
(Three years late...) but I believe the answer to your second question is that SSRS essentially treats data from your datasets as unsorted; I'm not sure if it ignores any ORDER BY in the sql, or if it just assumes the data is unsorted.
To sort your groups in a particular order, you need to specify it in the report:
For the report I just created, the default sort order on the category was alphabetic on the category group which was basically a string code. But sometimes it can be useful to sort by some other characteristic of the data; for example, my report is of Average and Maximum processing times for messages identified by some code (the category). By setting the sort order of the group to be on [MaxElapsedMs], Z->A it draws my attention to the worst-performing message-types.
This sort of presentation won't be useful for every report but it can be an excellent tool to guide readers to have a better understanding of the data; though on other occasions you might prefer a report to have the same ordering every time it runs, in which case sorting on the category label itself may be best... and I guess there are circumstances where changing the sort order could harm understanding, such as if the categories implied some sort of ordering (such as date values?)
I had this problem on Windows 8, but I solved the problem by updating all of Android Studio's plugins with the SDK Manager, then restarting the computer.
Verify the following steps.
Those things should fix the problem
If you know what you are doing, another way is simply find the file that warns you(the path of the file is shown in warning info), comment the lines that generate the warnings.
Using http://crsmithdev.com/arrow/
arrowObj = arrow.Arrow.strptime('2017-02-20 10:00:00', '%Y-%m-%d %H:%M:%S' , 'US/Eastern')
arrowObj.to('UTC') or arrowObj.to('local')
This library makes life easy :)
In my "Ubuntu 16.04", I use next steps to completely remove and clean Kubernetes (installed with "apt-get"):
kubeadm reset
sudo apt-get purge kubeadm kubectl kubelet kubernetes-cni kube*
sudo apt-get autoremove
sudo rm -rf ~/.kube
And restart the computer.
FileStream fileStream = new FileStream("file.txt", FileMode.Open);
using (StreamReader reader = new StreamReader(fileStream))
{
string line = reader.ReadLine();
}
Using the System.IO.FileStream and System.IO.StreamReader. You can use System.IO.BinaryReader or System.IO.BinaryWriter as well.
foreach is useful if you have a array or other IEnumerable Collection of data. but for can be used for access elements of an array that can be accessed by their index.
tcptraceroute xx.xx.xx.xx 9100
if you didn't find it you can install it
yum -y install tcptraceroute
or
aptitude -y install tcptraceroute
To add on to jk.'s excellent answer, you can now pass a method more easily using Lambda Expressions (in Java 8). First, some background. A functional interface is an interface that has one and only one abstract method, although it can contain any number of default methods (new in Java 8) and static methods. A lambda expression can quickly implement the abstract method, without all the unnecessary syntax needed if you don't use a lambda expression.
Without lambda expressions:
obj.aMethod(new AFunctionalInterface() {
@Override
public boolean anotherMethod(int i)
{
return i == 982
}
});
With lambda expressions:
obj.aMethod(i -> i == 982);
Here is an excerpt from the Java tutorial on Lambda Expressions:
Syntax of Lambda Expressions
A lambda expression consists of the following:
A comma-separated list of formal parameters enclosed in parentheses. The CheckPerson.test method contains one parameter, p, which represents an instance of the Person class.
Note: You can omit the data type of the parameters in a lambda expression. In addition, you can omit the parentheses if there is only one parameter. For example, the following lambda expression is also valid:p -> p.getGender() == Person.Sex.MALE && p.getAge() >= 18 && p.getAge() <= 25
The arrow token,
->
A body, which consists of a single expression or a statement block. This example uses the following expression:
p.getGender() == Person.Sex.MALE && p.getAge() >= 18 && p.getAge() <= 25
If you specify a single expression, then the Java runtime evaluates the expression and then returns its value. Alternatively, you can use a return statement:
p -> { return p.getGender() == Person.Sex.MALE && p.getAge() >= 18 && p.getAge() <= 25; }
A return statement is not an expression; in a lambda expression, you must enclose statements in braces ({}). However, you do not have to enclose a void method invocation in braces. For example, the following is a valid lambda expression:
email -> System.out.println(email)
Note that a lambda expression looks a lot like a method declaration; you can consider lambda expressions as anonymous methods—methods without a name.
Here is how you can "pass a method" using a lambda expression:
Note: this uses a new standard functional interface, java.util.function.IntConsumer
.
class A {
public static void methodToPass(int i) {
// do stuff
}
}
import java.util.function.IntConsumer;
class B {
public void dansMethod(int i, IntConsumer aMethod) {
/* you can now call the passed method by saying aMethod.accept(i), and it
will be the equivalent of saying A.methodToPass(i) */
}
}
class C {
B b = new B();
public C() {
b.dansMethod(100, j -> A.methodToPass(j)); //Lambda Expression here
}
}
The above example can be shortened even more using the ::
operator.
public C() {
b.dansMethod(100, A::methodToPass);
}
I think your answer can be found on this page. From the page:
This Folder, Subfolders and Files:
InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit PropagationFlags.None
As an alternative to Regex, running:
Sub Replacer()
Dim N As Long, i As Long
N = Cells(Rows.Count, "A").End(xlUp).Row
For i = 1 To N
If Left(Cells(i, "A").Value, 9) = "texts are" Then
Cells(i, "A").Value = "texts are replaced"
End If
Next i
End Sub
will produce:
Edit: See cambunctious's answer, which is basically what I now prefer because it only uses the changes in the stash, rather than comparing them to your current state. This makes the operation additive, with much less chance of undoing work done since the stash was created.
To do it interactively, you would first do
git diff stash^! -- path/to/relevant/file/in/stash.ext perhaps/another/file.ext > my.patch
...then open the patch file in a text editor, alter as required, then do
git apply < my.patch
cambunctious's answer bypasses the interactivity by piping one command directly to the other, which is fine if you know you want all changes from the stash. You can edit the stash^!
to be any commit range that has the cumulative changes you want (but check over the output of the diff first).
If applying the patch/diff fails, you can change the last command to git apply --reject
which makes all the changes it can, and leaves .rej
files where there are conflicts it can;r resolve. The .rej
files can then be applied using wiggle
, like so:
wiggle --replace path/to/relevant/file/in/stash.ext path/to/relevant/file/in/stash.ext.rej
This will either resolve the conflict, or give you conflict markers that you'd get from a merge.
Previous solution: There is an easy way to get changes from any branch, including stashes:
$ git checkout --patch stash@{0} path/to/file
You may omit the file spec if you want to patch in many parts. Or omit patch (but not the path) to get all changes to a single file. Replace 0
with the stash number from git stash list
, if you have more than one. Note that this is like diff
, and offers to apply all differences between the branches. To get changes from only a single commit/stash, have a look at git cherry-pick --no-commit
.
override func willMove(toParent parent: UIViewController?)
{
super.willMove(toParent: parent)
if parent == nil
{
print("This VC is 'will' be popped. i.e. the back button was pressed.")
}
}
Not sure if this is a new thing, but with deployments it is possible to do it like this:
kubectl logs deployment/app1
Here is what made the error disappear for me:
Close eclipse, open up a terminal window and run:
$ mvn clean eclipse:clean eclipse:eclipse
Are you using Maven? If so,
To add it: Right-click on the project, Maven → Disable Maven Nature Right-click on the project, Configure → Convert to Maven Project.
And then clean
Edit 1:
If that doesn't resolve the issue try right-clicking on your project and select properties. Select Java Build Path → Library tab. Look for a JVM. If it's not there, click to add Library and add the default JVM. If VM is there, click edit and select the default JVM. Hopefully, that works.
Edit 2:
You can also try going into the folder where you have all your projects and delete the .metadata
for eclipse (be aware that you'll have to re-import all the projects afterwards! Also all the environment settings you've set would also have to be redone). After it was deleted just import the project again, and hopefully, it works.
Without VBA...
If you can use a helper column, you can use the MATCH
function to test if a value in one column exists in another column (or in another column on another worksheet). It will return an Error if there is no match
To simply identify duplicates, use a helper column
Assume data in Sheet1, Column A, and another list in Sheet2, Column A. In your helper column, row 1, place the following formula:
=If(IsError(Match(A1, 'Sheet2'!A:A,False)),"","Duplicate")
Drag/copy this forumla down, and it should identify the duplicates.
To highlight cells, use conditional formatting:
With some tinkering, you can use this MATCH
function in a Conditional Formatting rule which would highlight duplicate values. I would probably do this instead of using a helper column, although the helper column is a great way to "see" results before you make the conditional formatting rule.
Something like:
=NOT(ISERROR(MATCH(A1, 'Sheet2'!A:A,FALSE)))
For Excel 2007 and prior, you cannot use conditional formatting rules that reference other worksheets. In this case, use the helper column and set your formatting rule in column A like:
=B1="Duplicate"
This screenshot is from the 2010 UI, but the same rule should work in 2007/2003 Excel.
Plain and simple:
If Jenkins sees the build step (which is a script too) exits with non-zero code, the build is marked with a red ball (= failed).
Why exactly that happens depends on your build script.
I wrote something similar from another point-of-view but maybe it will help to read it anyway: Why does Jenkins think my build succeeded?
There's a workaround to achieve it.
First, bind your iframe to a target page with relative url. The browsers will treat the site in iframe the same domain with your website.
In your web server, using a rewrite module to redirect request from the relative url to absolute url. If you use IIS, I recommend you check on IIRF module.
List<string> lines = new List<string>();
using (var sr = new StreamReader("file.txt"))
{
while (sr.Peek() >= 0)
lines.Add(sr.ReadLine());
}
i would suggest this... of Groo's answer.
I've used OAuth a few times, and also used some other methods (BASIC/DIGEST). I wholeheartedly suggest OAuth. The following link is the best tutorial I've seen on using OAuth:
You can create the Python dictionary and serialize it to JSON in one line and it's not even ugly.
my_json_string = json.dumps({'key1': val1, 'key2': val2})
Why not do it?
var result= ctx.table.Where(x => x.UserName == "Value").FirstOrDefault();
if(result?.field == value)
{
// Match!
}
If your UML modeling tool has support for specifying an Enumeration, you should use that. It will likely be easier to do and it will give your model stronger semantics. Visually the result will be very similar to a Class with an <<enumeration>>
Stereotype, but in the UML metamodel, an Enumeration is actually a separate (meta)type.
+---------------------+
| <<enumeration>> |
| DayOfTheWeek |
|_____________________|
| Sunday |
| Monday |
| Tuesday |
| ... |
+---------------------+
Once it is defined, you can use it as the type of an Attribute just like you would a Datatype or the name one of your own Classes.
+---------------------+
| Event |
|_____________________|
| day : DayOfTheWeek |
| ... |
+---------------------+
If you're using ArgoEclipse or ArgoUML, there's a pulldown menu on the toolbar which selects among Datatype, Enumeration, Signal, etc that will allow you to create your own Enumerations. The compartment that normally contains Attributes can then be populated with EnumerationLiterals for the values of your enumeration.
Here's a picture of a slightly different example in ArgoUML:
1) Correct
2) You can think of that one as "read only" list, where you don't care about the type of the items.Could e.g. be used by a method that is returning the length of the list.
3) T, E and U are the same, but people tend to use e.g. T for type, E for Element, V for value and K for key. The method that compiles says that it took an array of a certain type, and returns an array of the same type.
4) You can't mix oranges and apples. You would be able to add an Object to your String list if you could pass a string list to a method that expects object lists. (And not all objects are strings)
I had the same issue because the XML file I was uploading was encoded using UTF-8-BOM (UTF-8 byte-order mark).
Switched the encoding to UTF-8 in Notepad++ and was able to load the XML file in code.
Have a look at View.setVisibility(View.GONE / View.VISIBLE / View.INVISIBLE)
.
From the API docs:
public void setVisibility(int visibility)
Since: API Level 1
Set the enabled state of this view.
Related XML Attributes: android:visibilityParameters:
visibility
One of VISIBLE, INVISIBLE, or GONE.
Note that LinearLayout
is a ViewGroup
which in turn is a View
. That is, you may very well call, for instance, myLinearLayout.setVisibility(View.VISIBLE)
.
This makes sense. If you have any experience with AWT/Swing, you'll recognize it from the relation between Container
and Component
. (A Container
is a Component
.)
I had the same error because of character '@' in my resources/application.properties. All I did was replacing the '@' for its unicode value:
eureka.client.serviceUrl.defaultZone=http://discUser:discPassword\u0040localhost:8082/eureka/
and it worked like charm. I know the '@' is a perfectly valid character in .properties files and the file was in UTF-8 encoding and it makes me question my career till today but it's worth a shot if you delete content of your resource files to see if you can get pass this error.
Wrap in a self executing function and return
(function(){
for(i=0;i<5;i++){
for (j=0;j<3;j++){
//console.log(i+' '+j);
if (j == 2) return;
}
}
})()
The org.apache.commons.text.StringSubstitutor helper class from Apache Commons Text provides named variable substitution
Map<String, String> valuesMap = new HashMap<>();
valuesMap.put("animal", "quick brown fox");
valuesMap.put("target", "lazy dog");
String resolved = new StringSubstitutor(valuesMap).replace("The ${animal} jumped over the ${target}.");
System.out.println(resolved); // The quick brown fox jumped over the lazy dog.
The PHP equivalent is time()
: http://php.net/manual/en/function.time.php
After I changed the theme it behaved strangely. The font size was small, cannot see the toolbar and I really didn't like the new look.
For those who want to restore the original theme, you can do it as follows:
jt -r
You need to restart Jupyter the first time you do it and later refresh is enough to enable the new theme.
or directly from inside the notebook
!jt -r
You are disabling only on document.ready
and this happens only once when DOM
is ready but you need to disable
in keyup event too when textbox gets empty. Also change $(this).val.length
to $(this).val().length
$(document).ready(function(){
$('.sendButton').attr('disabled',true);
$('#message').keyup(function(){
if($(this).val().length !=0)
$('.sendButton').attr('disabled', false);
else
$('.sendButton').attr('disabled',true);
})
});
Or you can use conditional operator instead of if statement. also use prop instead of attr as attribute is not recommended by jQuery 1.6 and above for disabled, checked etc.
As of jQuery 1.6, the .attr() method returns undefined for attributes that have not been set. To retrieve and change DOM properties such as the checked, selected, or disabled state of form elements, use the .prop() method, jQuery docs
$(document).ready(function(){
$('.sendButton').prop('disabled',true);
$('#message').keyup(function(){
$('.sendButton').prop('disabled', this.value == "" ? true : false);
})
});
You can open up terminal and simply type
java -version // this will check your jre version
javac -version // this will check your java compiler version if you installed
this should show you the version of java installed on the system (assuming that you have set the path of the java in system environment).
And if you haven't, add it via
export JAVA_HOME=/path/to/java/jdk1.x
and if you unsure if you have java at all on your system just use find
in terminal
i.e. find / -name "java"
I think, best way to use/set boolean value as parameter is to use in your PS script it like this:
Param(
[Parameter(Mandatory=$false)][ValidateSet("true", "false")][string]$deployApp="false"
)
$deployAppBool = $false
switch($deployPmCmParse.ToLower()) {
"true" { $deployAppBool = $true }
default { $deployAppBool = $false }
}
So now you can use it like this:
.\myApp.ps1 -deployAppBool True
.\myApp.ps1 -deployAppBool TRUE
.\myApp.ps1 -deployAppBool true
.\myApp.ps1 -deployAppBool "true"
.\myApp.ps1 -deployAppBool false
#and etc...
So in arguments from cmd you can pass boolean value as simple string :).
Copy the mail as a document link (right click on the mail and you should get this option) and paste it in the new mail. This worked for me
If, rather than writing new code to trim a string, you're looking at existing code that calls "strip()" and wondering why it isn't working, you might want to check whether it attempts to include something like the prototypejs framework, and make sure it's actually getting loaded.
That framework adds a strip function to all String objects, but if e.g. you upgraded it and your web pages are still referring to the old .js file it'll of course not work.
Try this:
SELECT *
FROM information_schema.KEY_COLUMN_USAGE
WHERE REFERENCED_TABLE_NAME = 'YourTable';
This should deliver you which Tables have references to the table you want to drop, once you drop these references, or the datasets which reference datasets in this table you will be able to drop the table
Your main
doesn't know about writeFile()
and can't call it.
Move writefile
to be before main
, or declare a function prototype int writeFile();
before main
.
best way will be to save it in a text file with csv extension:
Sub ExportToCSV()
Dim i, j As Integer
Dim Name As String
Dim pathfile As String
Dim fs As Object
Dim stream As Object
Set fs = CreateObject("Scripting.FileSystemObject")
On Error GoTo fileexists
i = 15
Name = Format(Now(), "ddmmyyHHmmss")
pathfile = "D:\1\" & Name & ".csv"
Set stream = fs.CreateTextFile(pathfile, False, True)
fileexists:
If Err.Number = 58 Then
MsgBox "File already Exists"
'Your code here
Return
End If
On Error GoTo 0
j = 1
Do Until IsEmpty(ThisWorkbook.ActiveSheet.Cells(i, 1).Value)
stream.WriteLine (ThisWorkbook.Worksheets(1).Cells(i, 1).Value & ";" & Replace(ThisWorkbook.Worksheets(1).Cells(i, 6).Value, ".", ","))
j = j + 1
i = i + 1
Loop
stream.Close
End Sub
You can convert the QString type to python string by just using the str
function. Assuming you are not using any Unicode characters you can get a python
string as below:
text = str(combobox1.currentText())
If you are using any unicode characters, you can do:
text = unicode(combobox1.currentText())
For API level >= 28 available attribute android:dialogCornerRadius
. To support previous API versions need use
<style name="RoundedDialog" parent="Theme.AppCompat.Light.Dialog.Alert">
<item name="android:windowBackground">@drawable/dialog_bg</item>
</style>
where dialog_bg.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item >
<shape >
<solid android:color="@android:color/transparent" />
</shape>
</item>
<item
android:left="16dp"
android:right="16dp">
<shape>
<solid
android:color="@color/white"/>
<corners
android:radius="8dp" />
<padding
android:left="16dp"
android:right="16dp" />
</shape>
</item>
</layer-list>
This works for me and produces values like Python's random.randint standard library function:
function randint(min, max) {
return Math.round((Math.random() * Math.abs(max - min)) + min);
}
console.log("Random integer: " + randint(-5, 5));
db.collection.findOne().sort({age:-1}) //get Max without need for limit(1)
This cannot be done with the native javascript dialog box, but a lot of javascript libraries include more flexible dialogs. You can use something like jQuery UI's dialog box for this.
See also these very similar questions:
Here's an example, as demonstrated in this jsFiddle:
<html><head>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.7.1.js"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/jquery-ui.js"></script>
<link rel="stylesheet" type="text/css" href="/css/normalize.css">
<link rel="stylesheet" type="text/css" href="/css/result-light.css">
<link rel="stylesheet" type="text/css" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.17/themes/base/jquery-ui.css">
</head>
<body>
<a class="checked" href="http://www.google.com">Click here</a>
<script type="text/javascript">
$(function() {
$('.checked').click(function(e) {
e.preventDefault();
var dialog = $('<p>Are you sure?</p>').dialog({
buttons: {
"Yes": function() {alert('you chose yes');},
"No": function() {alert('you chose no');},
"Cancel": function() {
alert('you chose cancel');
dialog.dialog('close');
}
}
});
});
});
</script>
</body><html>