Optimyth Software has just launched a static analysis service in the cloud www.checkinginthecloud.com. Just securely upload your code run the analysis and get the results. No hassles.
It supports several languages including C# more info can be found at wwww.optimyth.com
This usually happens to me if I misplace a return statement, for example:
Adding a return statement, or in my case, moving it to correct scope will do the trick:
Unitialized variables check. Link 1 and 2 already seem to do this just fine, though.
I can't say I have used any of these intensively, though :)
I had the same problem. I am using Python and Eclipse on Windows. The code was running just fine, but eclipse show errors everywhere. After I changed the name of the folder 'Lib' to 'lib' (C:\Python27\lib), the problem was solved. It seems that if the capitalization of the letters doesn't match the one in the configuration file, this will sometimes cause problems (but it seems like not always, because the error checking was fine for long time before the problems suddenly appeared for no obvious reason).
Just for the reference, if you work in scripts (batch processing), not in stored procedure, flushing output is triggered by the GO command, e.g.
print 'test'
print 'test'
go
In general, my conclusion is following: output of mssql script execution, executing in SMS GUI or with sqlcmd.exe, is flushed to file, stdoutput, gui window on first GO statement or until the end of the script.
Flushing inside of stored procedure functions differently, since you can not place GO inside.
Reference: tsql Go statement
i think it is simple just add headerLeft : null
, i am using react-native cli, so this is the example :
static navigationOptions = {
headerLeft : null
};
The following should work for you:
[\n\r].*Object Name:\s*([^\n\r]*)
Your desired match will be in capture group 1.
[\n\r][ \t]*Object Name:[ \t]*([^\n\r]*)
Would be similar but not allow for things such as " blah Object Name: blah" and also make sure that not to capture the next line if there is no actual content after "Object Name:"
Simply do the following:
Open your .sql file with Notepad or Notepad ++
Find InnoDB and Replace all (around 87) with MyISAM
Save and now you can import your database with out error.
For Xcode 7.3 and Swift 2.2.
let str = ""
If you want the number of visual characters:
str.characters.count
If you want the "16-bit code units within the string’s UTF-16 representation":
str.utf16.count
Most of the time, 1 is what you need.
When would you need 2? I've found a use case for 2:
let regex = try! NSRegularExpression(pattern:"",
options: NSRegularExpressionOptions.UseUnixLineSeparators)
let str = ""
let result = regex.stringByReplacingMatchesInString(str,
options: NSMatchingOptions.WithTransparentBounds,
range: NSMakeRange(0, str.utf16.count), withTemplate: "dog")
print(result) // dogdogdogdogdogdog
If you use 1, the result is incorrect:
let result = regex.stringByReplacingMatchesInString(str,
options: NSMatchingOptions.WithTransparentBounds,
range: NSMakeRange(0, str.characters.count), withTemplate: "dog")
print(result) // dogdogdog
My way of doing things is the following
#Backup branch
git checkout -b master_backup
git push origin master_backup
git checkout master
#Hard Reset master branch to the last common commit
git reset --hard e8c8597
#Merge
git merge develop
Java is a server side language, whereas javascript is a client side language. Both cannot communicate. If you have setup some server side script using Java you could use AJAX on the client in order to send an asynchronous request to it and thus invoke any possible Java functions. For example if you use jQuery as js framework you may take a look at the $.ajax()
method. Or if you wanted to do it using plain javascript, here's a tutorial.
In PLSQL block, columns of select statements must be assigned to variables, which is not the case in SQL statements.
The second BEGIN's SQL statement doesn't have INTO clause and that caused the error.
DECLARE
PROD_ROW_ID VARCHAR (10) := NULL;
VIS_ROW_ID NUMBER;
DSC VARCHAR (512);
BEGIN
SELECT ROW_ID
INTO VIS_ROW_ID
FROM SIEBEL.S_PROD_INT
WHERE PART_NUM = 'S0146404';
BEGIN
SELECT RTRIM (VIS.SERIAL_NUM)
|| ','
|| RTRIM (PLANID.DESC_TEXT)
|| ','
|| CASE
WHEN PLANID.HIGH = 'TEST123'
THEN
CASE
WHEN TO_DATE (PROD.START_DATE) + 30 > SYSDATE
THEN
'Y'
ELSE
'N'
END
ELSE
'N'
END
|| ','
|| 'GB'
|| ','
|| RTRIM (TO_CHAR (PROD.START_DATE, 'YYYY-MM-DD'))
INTO DSC
FROM SIEBEL.S_LST_OF_VAL PLANID
INNER JOIN SIEBEL.S_PROD_INT PROD
ON PROD.PART_NUM = PLANID.VAL
INNER JOIN SIEBEL.S_ASSET NETFLIX
ON PROD.PROD_ID = PROD.ROW_ID
INNER JOIN SIEBEL.S_ASSET VIS
ON VIS.PROM_INTEG_ID = PROD.PROM_INTEG_ID
INNER JOIN SIEBEL.S_PROD_INT VISPROD
ON VIS.PROD_ID = VISPROD.ROW_ID
WHERE PLANID.TYPE = 'Test Plan'
AND PLANID.ACTIVE_FLG = 'Y'
AND VISPROD.PART_NUM = VIS_ROW_ID
AND PROD.STATUS_CD = 'Active'
AND VIS.SERIAL_NUM IS NOT NULL;
END;
END;
/
References
http://docs.oracle.com/cd/E11882_01/appdev.112/e25519/static.htm#LNPLS00601 http://docs.oracle.com/cd/B19306_01/appdev.102/b14261/selectinto_statement.htm#CJAJAAIG http://pls-00428.ora-code.com/
You can use the following command. The SET
will set the input from the user console to the variable comment and then you can use that variable using %comment%
SET /P comment=Comment:
echo %comment%
pause
The current directory is a system-level feature; it returns the directory that the server was launched from. It has nothing to do with the website.
You want HttpRuntime.AppDomainAppPath
.
If you're in an HTTP request, you can also call Server.MapPath("~/Whatever")
.
So what you need to do is replace th:field with th:name and add th:value, th:value will have the value of the variable you're passing across.
<div class="col-auto">
<input type="text" th:value="${client.name}" th:name="clientName"
class="form control">
</div>
byte[] iso88591Data = theString.getBytes("ISO-8859-1");
Will do the trick. From your description it seems as if you're trying to "store an ISO-8859-1 String". String objects in Java are always implicitly encoded in UTF-16. There's no way to change that encoding.
What you can do, 'though is to get the bytes that constitute some other encoding of it (using the .getBytes()
method as shown above).
check this out A little framework: a complete cookies reader/writer with full Unicode support
/*\
|*|
|*| :: cookies.js ::
|*|
|*| A complete cookies reader/writer framework with full unicode support.
|*|
|*| Revision #1 - September 4, 2014
|*|
|*| https://developer.mozilla.org/en-US/docs/Web/API/document.cookie
|*| https://developer.mozilla.org/User:fusionchess
|*| https://github.com/madmurphy/cookies.js
|*|
|*| This framework is released under the GNU Public License, version 3 or later.
|*| http://www.gnu.org/licenses/gpl-3.0-standalone.html
|*|
|*| Syntaxes:
|*|
|*| * docCookies.setItem(name, value[, end[, path[, domain[, secure]]]])
|*| * docCookies.getItem(name)
|*| * docCookies.removeItem(name[, path[, domain]])
|*| * docCookies.hasItem(name)
|*| * docCookies.keys()
|*|
\*/
var docCookies = {
getItem: function (sKey) {
if (!sKey) { return null; }
return decodeURIComponent(document.cookie.replace(new RegExp("(?:(?:^|.*;)\\s*" + encodeURIComponent(sKey).replace(/[\-\.\+\*]/g, "\\$&") + "\\s*\\=\\s*([^;]*).*$)|^.*$"), "$1")) || null;
},
setItem: function (sKey, sValue, vEnd, sPath, sDomain, bSecure) {
if (!sKey || /^(?:expires|max\-age|path|domain|secure)$/i.test(sKey)) { return false; }
var sExpires = "";
if (vEnd) {
switch (vEnd.constructor) {
case Number:
sExpires = vEnd === Infinity ? "; expires=Fri, 31 Dec 9999 23:59:59 GMT" : "; max-age=" + vEnd;
break;
case String:
sExpires = "; expires=" + vEnd;
break;
case Date:
sExpires = "; expires=" + vEnd.toUTCString();
break;
}
}
document.cookie = encodeURIComponent(sKey) + "=" + encodeURIComponent(sValue) + sExpires + (sDomain ? "; domain=" + sDomain : "") + (sPath ? "; path=" + sPath : "") + (bSecure ? "; secure" : "");
return true;
},
removeItem: function (sKey, sPath, sDomain) {
if (!this.hasItem(sKey)) { return false; }
document.cookie = encodeURIComponent(sKey) + "=; expires=Thu, 01 Jan 1970 00:00:00 GMT" + (sDomain ? "; domain=" + sDomain : "") + (sPath ? "; path=" + sPath : "");
return true;
},
hasItem: function (sKey) {
if (!sKey) { return false; }
return (new RegExp("(?:^|;\\s*)" + encodeURIComponent(sKey).replace(/[\-\.\+\*]/g, "\\$&") + "\\s*\\=")).test(document.cookie);
},
keys: function () {
var aKeys = document.cookie.replace(/((?:^|\s*;)[^\=]+)(?=;|$)|^\s*|\s*(?:\=[^;]*)?(?:\1|$)/g, "").split(/\s*(?:\=[^;]*)?;\s*/);
for (var nLen = aKeys.length, nIdx = 0; nIdx < nLen; nIdx++) { aKeys[nIdx] = decodeURIComponent(aKeys[nIdx]); }
return aKeys;
}
};
the previous answers didn't work out for me well. I had persisting problems by setting the marker. So i changed the code slightly.
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=ANSI" />
<title>Google Maps Multiple Markers</title>
<script src="http://maps.google.com/maps/api/js?sensor=false"
type="text/javascript"></script>
</head>
<body>
<div id="map" style="width: 1500px; height: 1000px;"></div>
<script type="text/javascript">
var locations = [
['Goettingen', 51.54128040000001, 9.915803500000038, 'http://www.google.de'],
['Kassel', 51.31271139999999, 9.479746100000057,0, 'http://www.stackoverflow.com'],
['Witzenhausen', 51.33996819999999, 9.855564299999969,0, 'www.http://developer.mozilla.org.de']
];
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 10,
center: new google.maps.LatLng(51.54376, 9.910419999999931),
mapTypeId: google.maps.MapTypeId.ROADMAP
});
var infowindow = new google.maps.InfoWindow();
var marker, i;
for (i = 0; i < locations.length; i++) {
marker = new google.maps.Marker({
position: new google.maps.LatLng(locations[i][1], locations[i][2]),
map: map,
url: locations[i][4]
});
google.maps.event.addListener(marker, 'mouseover', (function(marker, i) {
return function() {
infowindow.setContent(locations[i][0]);
infowindow.open(map, marker);
}
})(marker, i));
google.maps.event.addListener(marker, 'click', (function(marker, i) {
return function() {
infowindow.setContent(locations[i][0]);
infowindow.open(map, marker);
window.location.href = this.url;
}
})(marker, i));
}
</script>
</body>
</html>
This way worked out for me! You can create Google Maps routing links from your Datebase to to use it as an interactive routing map.
This phpMyAdmin query is returning those rows, that are NOT null or empty or just whitespaces:
SELECT * FROM `table_name` WHERE NOT ((`column_name` IS NULL) OR (TRIM(`column_name`) LIKE ''))
if you want to select rows that are null/empty/just whitespaces just remove NOT.
I have been using OleDb
provider. However, it has problems if you are reading in rows that have numeric values but you want them treated as text. However, you can get around that issue by creating a schema.ini
file. Here is my method I used:
// using System.Data;
// using System.Data.OleDb;
// using System.Globalization;
// using System.IO;
static DataTable GetDataTableFromCsv(string path, bool isFirstRowHeader)
{
string header = isFirstRowHeader ? "Yes" : "No";
string pathOnly = Path.GetDirectoryName(path);
string fileName = Path.GetFileName(path);
string sql = @"SELECT * FROM [" + fileName + "]";
using(OleDbConnection connection = new OleDbConnection(
@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + pathOnly +
";Extended Properties=\"Text;HDR=" + header + "\""))
using(OleDbCommand command = new OleDbCommand(sql, connection))
using(OleDbDataAdapter adapter = new OleDbDataAdapter(command))
{
DataTable dataTable = new DataTable();
dataTable.Locale = CultureInfo.CurrentCulture;
adapter.Fill(dataTable);
return dataTable;
}
}
If you want to use Android's default drawable, you can use @android:drawable/ic_menu_search
like this:
<EditText android:id="@+id/inputSearch"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:drawableLeft="@android:drawable/ic_menu_search"
android:hint="Search product.."
android:inputType="textVisiblePassword"/>
In my case I was simply lacking of initial commit on remote branch, so local branch wasn't finding anything to pull and it was giving that error message.
I did:
git commit -m 'first commit' // on remote branch
git pull // on local branch
Python's mmap module will allow you to insert into a file. The following sample shows how it can be done in Unix (Windows mmap may be different). Note that this does not handle all error conditions and you might corrupt or lose the original file. Also, this won't handle unicode strings.
import os
from mmap import mmap
def insert(filename, str, pos):
if len(str) < 1:
# nothing to insert
return
f = open(filename, 'r+')
m = mmap(f.fileno(), os.path.getsize(filename))
origSize = m.size()
# or this could be an error
if pos > origSize:
pos = origSize
elif pos < 0:
pos = 0
m.resize(origSize + len(str))
m[pos+len(str):] = m[pos:origSize]
m[pos:pos+len(str)] = str
m.close()
f.close()
It is also possible to do this without mmap with files opened in 'r+' mode, but it is less convenient and less efficient as you'd have to read and temporarily store the contents of the file from the insertion position to EOF - which might be huge.
Version 3.6+: Use a formatted string literal, f-string for short
print(f"{i}. {key} appears {wordBank[key]} times.")
Based on Robm's answer I have created a Docker image and a Bash script called portcat
.
Using portcat, you can easily map multiple ports to an existing Docker container. An example using the (optional) Bash script:
curl -sL https://raw.githubusercontent.com/archan937/portcat/master/script/install | sudo bash
portcat my-awesome-container 3456 4444:8080
And there you go! Portcat is mapping:
3456
to my-awesome-container:3456
4444
to my-awesome-container:8080
Please note that the Bash script is optional, the following commands:
ipAddress=$(docker inspect my-awesome-container | grep IPAddress | grep -o '[0-9]\{1,3\}\(\.[0-9]\{1,3\}\)\{3\}' | head -n 1)
docker run -p 3456:3456 -p 4444:4444 --name=alpine-portcat -it pmelegend/portcat:latest $ipAddress 3456 4444:8080
I hope portcat
will come in handy for you guys. Cheers!
If you are using Rubygems version 2.1.0 or later, you can try: gem uninstall --all
.
If the model specified for the drop down does not exist then angular will generate an empty options element. So you will have to explicitly specify the model on the select like this:
<select ng-model="regions[index]" ng-options="....">
Refer to the following as it has been answered before:
Why does AngularJS include an empty option in select? and this fiddle
Update: Try this instead:
<select ng-model="regions[index].code" ng-options="i.code as i.name for i in regions">
</select>
or
<select ng-model="regions[2]" ng-options="r.name for r in regions">
</select>
Note that there is no empty options element in the select.
Both the regex and included files are good methods, and I frequently use those. But another alternative is to use a "named location", which is a useful approach in many situations — especially more complicated ones. The official "If is Evil" page shows essentially the following as a good way to do things:
error_page 418 = @common_location;
location /first/location/ {
return 418;
}
location /second/location/ {
return 418;
}
location @common_location {
# The common configuration...
}
There are advantages and disadvantages to these various approaches. One big advantage to a regex is that you can capture parts of the match and use them to modify the response. Of course, you can usually achieve similar results with the other approaches by either setting a variable in the original block or using map
. The downside of the regex approach is that it can get unwieldy if you want to match a variety of locations, plus the low precedence of a regex might just not fit with how you want to match locations — not to mention that there are apparently performance impacts from regexes in some cases.
The main advantage of including files (as far as I can tell) is that it is a little more flexible about exactly what you can include — it doesn't have to be a full location block, for example. But it's also just subjectively a bit clunkier than named locations.
Also note that there is a related solution that you may be able to use in similar situations: nested locations. The idea is that you would start with a very general location, apply some configuration common to several of the possible matches, and then have separate nested locations for the different types of paths that you want to match. For example, it might be useful to do something like this:
location /specialpages/ {
# some config
location /specialpages/static/ {
try_files $uri $uri/ =404;
}
location /specialpages/dynamic/ {
proxy_pass http://127.0.0.1;
}
}
As far as I know, there are 2 standard ways you can do that.
1. @Input
Whenever the data in the parent changes, the child gets notified about this in the ngOnChanges method. The child can act on it. This is the standard way of interacting with a child.
Parent-Component
public inputToChild: Object;
Parent-HTML
<child [data]="inputToChild"> </child>
Child-Component: @Input() data;
ngOnChanges(changes: { [property: string]: SimpleChange }){
// Extract changes to the input property by its name
let change: SimpleChange = changes['data'];
// Whenever the data in the parent changes, this method gets triggered. You
// can act on the changes here. You will have both the previous value and the
// current value here.
}
Creating a service and using an observable in the shared service. The child subscribes to it and whenever there is a change, the child will be notified. This is also a popular method. When you want to send something other than the data you pass as the input, this can be used.
SharedService
subject: Subject<Object>;
Parent-Component
constructor(sharedService: SharedService)
this.sharedService.subject.next(data);
Child-Component
constructor(sharedService: SharedService)
this.sharedService.subject.subscribe((data)=>{
// Whenever the parent emits using the next method, you can receive the data
in here and act on it.})
I'm using:
import sys,os
sys.path.append(os.getcwd())
You use std::find
from <algorithm>
, which works equally well for std::list
and std::vector
. std::vector
does not have its own search/find function.
#include <list>
#include <algorithm>
int main()
{
std::list<int> ilist;
ilist.push_back(1);
ilist.push_back(2);
ilist.push_back(3);
std::list<int>::iterator findIter = std::find(ilist.begin(), ilist.end(), 1);
}
Note that this works for built-in types like int
as well as standard library types like std::string
by default because they have operator==
provided for them. If you are using using std::find
on a container of a user-defined type, you should overload operator==
to allow std::find
to work properly: EqualityComparable
concept
You are doing integer arithmetic, so there the result is correct. Try
percentage=((double)number/total)*100;
BTW the %f
expects a double
not a float
. By pure luck that is converted here, so it works out well. But generally you'd mostly use double
as floating point type in C nowadays.
In order for you to modify test1
while inside a function you will need to do define test1
as a global variable, for example:
test1 = 0
def testFunc():
global test1
test1 += 1
testFunc()
However, if you only need to read the global variable you can print it without using the keyword global
, like so:
test1 = 0
def testFunc():
print test1
testFunc()
But whenever you need to modify a global variable you must use the keyword global
.
The task gives you all the goodness of the task API:
Task.ContinueWith
)Note that in both cases you can make your code slightly simpler with method group conversions:
DataInThread = new Thread(ThreadProcedure);
// Or...
Task t = Task.Factory.StartNew(ThreadProcedure);
you can reset to HEAD^
then force push it.
git reset HEAD^
git push -u origin master --force
It will delete your last commit and will reflect on bitbucket as commit deleted but will still remain on their server.
Installing Ruby gems on a Mac is a common source of confusion and frustration. Unfortunately, most solutions are incomplete, outdated, and provide bad advice. I'm glad the accepted answer here says to NOT use sudo
, which you should never need to do, especially if you don't understand what it does. While I used RVM years ago, I would recommend chruby
in 2020.
Some of the other answers here provide alternative options for installing gems, but they don't mention the limitations of those solutions. What's missing is an explanation and comparison of the various options and why you might choose one over the other. I've attempted to cover most common scenarios in my definitive guide to installing Ruby gems on a Mac.
Here is an example of callbacks in C.
Let's say you want to write some code that allows registering callbacks to be called when some event occurs.
First define the type of function used for the callback:
typedef void (*event_cb_t)(const struct event *evt, void *userdata);
Now, define a function that is used to register a callback:
int event_cb_register(event_cb_t cb, void *userdata);
This is what code would look like that registers a callback:
static void my_event_cb(const struct event *evt, void *data)
{
/* do stuff and things with the event */
}
...
event_cb_register(my_event_cb, &my_custom_data);
...
In the internals of the event dispatcher, the callback may be stored in a struct that looks something like this:
struct event_cb {
event_cb_t cb;
void *data;
};
This is what the code looks like that executes a callback.
struct event_cb *callback;
...
/* Get the event_cb that you want to execute */
callback->cb(event, callback->data);
Here's my two solutions for this
1. Store in json files
Just make a json file and get in your component by $http.get()
method. If I was need this very low then it's good and quick.
2. Store by using data services
If you want to store and use in all components or having large usage then it's better to use data service. Like this :
Just create static folder inside src/app
folder.
Create a file named as fuels.ts
into static folder. You can store other static files here also. Let define your data like this. Assuming you having fuels data.
__
export const Fuels {
Fuel: [
{ "id": 1, "type": "A" },
{ "id": 2, "type": "B" },
{ "id": 3, "type": "C" },
{ "id": 4, "type": "D" },
];
}
__
import { Injectable } from "@angular/core";
import { Fuels } from "./static/fuels";
@Injectable()
export class StaticService {
constructor() { }
getFuelData(): Fuels[] {
return Fuels;
}
}`
just import in app.module.ts file like this and change in providers
import { StaticService } from './static.services';
providers: [StaticService]
Now use this as StaticService
in any module.
That's All.
Do this way:-
String newline = System.getProperty("line.separator");
private static final String mText = "SHOP MA" + newline +
+ "----------------------------" + newline +
+ "Pannampitiya" + newline +
+ "09-10-2012 harsha no: 001" + newline +
+ "No Item Qty Price Amount" + newline +
+ "1 Bread 1 50.00 50.00" + newline +
+ "____________________________" + newline;
you dont have to do that in the Google chrome. Use the Internet explorer it offers the option to copy the css associated and after you copy and paste select the style and put that into another file .css to call into that html which you have created. Hope this will solve you problem than anything else:)
You render your matplotlib plots to different devices (e.g., on-screen via Quartz versus to to-file via pdf using different functions (plot versus savefig) whose parameters are nearly the same, yet the default values for those parameters are not the same for both functions.
Put another way, the savefig default parameters are different from the default display parameters.
Aligning them is simple if you do it in the matplotlib config file. The template file is included with the source package, and named matplotlibrc.template. If you did not create one when you installed matplotlib, you can get this template from the matplotlib source, or from the matplotlib website.
Once you have customized this file the way you want, rename it to matplotlibrc (no extension) and save it to the directory .matplotlib (note the leading '.') which should be in your home directory.
The config parameters for saving figures begins at about line 314 in the supplied matplotlibrc.template (first line before this section is: ### SAVING FIGURES).
In particular, you will want to look at these:
savefig.dpi : 100 # figure dots per inch
savefig.facecolor : white # figure facecolor when saving
savefig.edgecolor : white # figure edgecolor when saving
savefig.extension : auto # what extension to use for savefig('foo'), or 'auto'
Below these lines are the settings for font type and various image format-specific parameters.
These same parameters for display, i.e., PLT.show(), begin at about line 277 a in the matplotlibrc.template (this section preceded with the line: ### FIGURE):
figure.figsize : 8, 6
figure.dpi : 80
figure.facecolor : 0.75
figure.edgecolor : white
As you can see by comparing the values of these two blocks of parameters, the default settings for the same figure attribute are different for savefig versus display (show).
You were very close, you can use this:
DELETE FROM table WHERE (col1,col2) IN ((1,2),(3,4),(5,6))
Please see this fiddle.
Currently it is not possible to change the font family or size outside the editor. You can however zoom the entire user interface in and out from the View
menu.
Update for our VS Code 1.0 release:
A newly introduced setting window.zoomLevel
allows to persist the zoom level for good! It can have both negative and positive values to zoom in or out.
As an addendum to this, I've strings of the form: Some words 303
where I'd like to split off the numerical part from the tail of the string. This seems to point to a possible solution:
http://lists.mysql.com/mysql/222421
The problem however, is that you only get the answer "yes, it matches", and not the start index of the regexp match.
To post a clarification answer here for those who get directed here by Google.
The document size includes everything in the document including the subdocuments, nested objects etc.
So a document of:
{
"_id": {},
"na": [1, 2, 3],
"naa": [
{ "w": 1, "v": 2, "b": [1, 2, 3] },
{ "w": 5, "b": 2, "h": [{ "d": 5, "g": 7 }, {}] }
]
}
Has a maximum size of 16 MB.
Subdocuments and nested objects are all counted towards the size of the document.
Yes, bool is a built-in type.
WIN32 is C code, not C++, and C does not have a bool, so they provide their own typedef BOOL.
com.fasterxml.jackson.databind.type.TypeFactory._hashMapSuperInterfaceChain(HierarchicType)
com.fasterxml.jackson.databind.type.TypeFactory._findSuperInterfaceChain(Type, Class)
com.fasterxml.jackson.databind.type.TypeFactory._findSuperTypeChain(Class, Class)
com.fasterxml.jackson.databind.type.TypeFactory.findTypeParameters(Class, Class, TypeBindings)
com.fasterxml.jackson.databind.type.TypeFactory.findTypeParameters(JavaType, Class)
com.fasterxml.jackson.databind.type.TypeFactory._fromParamType(ParameterizedType, TypeBindings)
com.fasterxml.jackson.databind.type.TypeFactory._constructType(Type, TypeBindings)
com.fasterxml.jackson.databind.type.TypeFactory.constructType(TypeReference)
com.fasterxml.jackson.databind.ObjectMapper.convertValue(Object, TypeReference)
The method _hashMapSuperInterfaceChain in class com.fasterxml.jackson.databind.type.TypeFactory is synchronized. Am seeing contention on the same at high loads.
May be another reason to avoid a static ObjectMapper
In v7.7, I had to go to Plugins menu and select "Open Plugins Folder..." (which goes to C:\Program Files\Notepad++\plugins).
I had to create a folder for the plugin and extract the .dll into the folder. For example, create a folder called "JSMinNPP" and place the "JSMinNPP.dll" in that folder. It doesn't work if you put the dll into the plugins folder.
Finally go to Settings --> Import --> Import plugin(s) and import that dll and restart Notepad++.
var test = {'red':'#FF0000', 'blue':'#0000FF'};_x000D_
delete test.blue; // or use => delete test['blue'];_x000D_
console.log(test);
_x000D_
this deletes test.blue
After lots of struggle I found here you go:
$cfg['blowfish_secret'] = ''; /* YOU MUST FILL IN THIS FOR COOKIE AUTH! */
830bbca930d5e417ae4249931838e2c70ca0365044268fa0ede75e33aff677de
$cfg['blowfish_secret'] = '830bbca930d5e417ae4249931838e2c70ca0365044268fa0ede75e33aff677de
';
I found this when I was downloading updated version of phpmyadmin. I wish this solution help you.
The simplest way is using HTML META tag like this:
<meta http-equiv="refresh" content="3;url=http://example.com/" />
If you are in Visual Code, Ctrl + Click on AppBar function.
Widget demoPage() {
AppBar appBar = AppBar(
title: Text('Demo'),
);
return Scaffold(
appBar: appBar,
body: /*
page body
*/,
);
}
And edit this piece.
app_bar.dart will open and you can find
preferredSize = new Size.fromHeight(kToolbarHeight + (bottom?.preferredSize?.height ?? 0.0)),
Difference of height!
I always get the filter date into a datetime, with no time (time= 00:00:00.000)
DECLARE @FilterDate datetime --final destination, will not have any time on it
DECLARE @GivenDateD datetime --if you're given a datetime
DECLARE @GivenDateS char(23) --if you're given a string, it can be any valid date format, not just the yyyy/mm/dd hh:mm:ss.mmm that I'm using
SET @GivenDateD='2009/03/30 13:42:50.123'
SET @GivenDateS='2009/03/30 13:42:50.123'
--remove the time and assign it to the datetime
@FilterDate=dateadd(dd, datediff(dd, 0, @FilterDateD), 0)
--OR
@FilterDate=dateadd(dd, datediff(dd, 0, @FilterDateS), 0)
You can use this WHERE clause to then filter:
WHERE ColumnDateTime>=@FilterDate AND ColumnDateTime<@FilterDate+1
this will give all matches that are on or after the beginning of the day on 2009/03/30 up to and including the complete day on 2009/03/30
you can do the same for START and END filter parameters as well. Always make the start date a datetime and use zero time on the day you want, and make the condition ">=". Always make the end date the zero time on the day after you want and use "<". Doing that, you will always include any dates properly, regardless of the time portion of the date.
I came here with the same Error, though one with a different origin.
It is caused by unsupported float index in 1.12.0 and newer numpy versions even if the code should be considered as valid.
An int
type is expected, not a np.float64
Solution: Try to install numpy 1.11.0
sudo pip install -U numpy==1.11.0.
The step of : Select your project and select the "Deployment Descriptor" option and then choose "Generate Deployment Descriptor stub" works fine. The issue is that it is not always the case that we need web.xml, so it is best to append false to pom.xml
You can use IETester (http://www.my-debugbar.com/wiki/IETester/HomePage)
Use the following query:
SELECT E.I_EmpID AS EMPID,
E.I_EMPCODE AS EMPCODE,
E.I_EmpName AS EMPNAME,
REPLACE(TO_CHAR(A.I_REQDATE, 'DD-Mon-YYYY'), ' ', '') AS FROMDATE,
REPLACE(TO_CHAR(A.I_ENDDATE, 'DD-Mon-YYYY'), ' ', '') AS TODATE,
TO_CHAR(NOD) AS NOD,
DECODE(A.I_DURATION,
'FD',
'FullDay',
'FN',
'ForeNoon',
'AN',
'AfterNoon') AS DURATION,
L.I_LeaveType AS LEAVETYPE,
REPLACE(TO_CHAR((SELECT max(C.I_WORKDATE)
FROM T_COMPENSATION C
WHERE C.I_COMPENSATEDDATE = A.I_REQDATE
AND C.I_EMPID = A.I_EMPID),
'DD-Mon-YYYY'),
' ',
'') AS WORKDATE,
A.I_REASON AS REASON,
AP.I_REJECTREASON AS REJECTREASON
FROM T_LEAVEAPPLY A
INNER JOIN T_EMPLOYEE_MS E
ON A.I_EMPID = E.I_EmpID
AND UPPER(E.I_IsActive) = 'YES'
AND A.I_STATUS = '1'
INNER JOIN T_LeaveType_MS L
ON A.I_LEAVETYPEID = L.I_LEAVETYPEID
LEFT OUTER JOIN T_APPROVAL AP
ON A.I_REQDATE = AP.I_REQDATE
AND A.I_EMPID = AP.I_EMPID
AND AP.I_APPROVALSTATUS = '1'
WHERE E.I_EMPID <> '22'
ORDER BY A.I_REQDATE DESC
The trick is to force the inner query return only one record by adding an aggregate function (I have used max() here). This will work perfectly as far as the query is concerned, but, honestly, OP should investigate why the inner query is returning multiple records by examining the data. Are these multiple records really relevant business wise?
If you're using a Unix like OS (Linux, OSX, etc) then you can use a combination of find
and egrep
to search for require statements containing your package name:
find . -path ./node_modules -prune -o -name "*.js" -exec egrep -ni 'name-of-package' {} \;
If you search for the entire require('name-of-package')
statement, remember to use the correct type of quotation marks:
find . -path ./node_modules -prune -o -name "*.js" -exec egrep -ni 'require("name-of-package")' {} \;
or
find . -path ./node_modules -prune -o -name "*.js" -exec egrep -ni "require('name-of-package')" {} \;
The downside is that it's not fully automatic, i.e. it doesn't extract package names from package.json
and check them. You need to do this for each package yourself. Since package.json
is just JSON this could be remedied by writing a small script that uses child_process.exec
to run this command for each dependency. And make it a module. And add it to the NPM repo...
One option is to use an IDE like Spyder which should allow you to interact with your code while debugging (using an IPython console, in fact). In fact, Spyder is very MATLAB-like, which I presume was intentional. That includes variable inspectors, variable editing, built-in access to documentation, etc.
that the OpenSSL extension enabled and the directory languages with "br"? first checks the data.
You ca try this:
ul { list-style: none;}
li { position: relative;}
li:before {
position: absolute;
top: 8px;
margin: 8px 0 0 -12px;
vertical-align: middle;
display: inline-block;
width: 4px;
height: 4px;
background: #ccc;
content: "";
}
It worked for me, thanks to this post.
Now my aim was to have one pair with an base type and a type definition (Requirement A). For the type definition I want to use inheritance (Requirement B). The use should be possible, without explicite knowledge over the base type (Requirement C).
After I know now that the gernic constraints are not used for solving the generic return type, I experimented a little bit:
Ok let's introducte Get2:
class ServiceGate
{
public IAccess<C, T> Get1<C, T>(C control) where C : ISignatur<T>
{
throw new NotImplementedException();
}
public IAccess<ISignatur<T>, T> Get2<T>(ISignatur<T> control)
{
throw new NotImplementedException();
}
}
class Test
{
static void Main()
{
ServiceGate service = new ServiceGate();
//var bla1 = service.Get1(new Signatur()); // CS0411
var bla = service.Get2(new Signatur()); // Works
}
}
Fine, but this solution reaches not requriement B.
Next try:
class ServiceGate
{
public IAccess<C, T> Get3<C, T>(C control, ISignatur<T> iControl) where C : ISignatur<T>
{
throw new NotImplementedException();
}
}
class Test
{
static void Main()
{
ServiceGate service = new ServiceGate();
//var bla1 = service.Get1(new Signatur()); // CS0411
var bla = service.Get2(new Signatur()); // Works
var c = new Signatur();
var bla3 = service.Get3(c, c); // Works!!
}
}
Nice! Now the compiler can infer the generic return types. But i don't like it. Other try:
class IC<A, B>
{
public IC(A a, B b)
{
Value1 = a;
Value2 = b;
}
public A Value1 { get; set; }
public B Value2 { get; set; }
}
class Signatur : ISignatur<bool>
{
public string Test { get; set; }
public IC<Signatur, ISignatur<bool>> Get()
{
return new IC<Signatur, ISignatur<bool>>(this, this);
}
}
class ServiceGate
{
public IAccess<C, T> Get4<C, T>(IC<C, ISignatur<T>> control) where C : ISignatur<T>
{
throw new NotImplementedException();
}
}
class Test
{
static void Main()
{
ServiceGate service = new ServiceGate();
//var bla1 = service.Get1(new Signatur()); // CS0411
var bla = service.Get2(new Signatur()); // Works
var c = new Signatur();
var bla3 = service.Get3(c, c); // Works!!
var bla4 = service.Get4((new Signatur()).Get()); // Better...
}
}
My final solution is to have something like ISignature<B, C>
, where B ist the base type and C the definition...
You can use \centering
with your parbox to do this.
(Sorry for the Google cached link; the original one I had doesn't work anymore.)
You can use:
objects_all=Class.objects.filter(filter_condition="")
This will return a query set even if it gets one object. If you need exactly one object use:
obj=Class.objects.get(conditon="")
Not very simple but:
a = [1,1,1,2,2,3]
b = a.group_by {|n| n}.each {|k,v| v.pop [1,3].count(k)}.values.flatten
=> [1, 1, 2, 2]
Also handles the case for multiples in the 'subtrahend':
a = [1,1,1,2,2,3]
b = a.group_by {|n| n}.each {|k,v| v.pop [1,1,3].count(k)}.values.flatten
=> [1, 2, 2]
EDIT: this is more an enhancement combining Norm212 and my answer to make a "functional" solution.
b = [1,1,3].each.with_object( a ) { |del| a.delete_at( a.index( del ) ) }
Put it in a lambda if needed:
subtract = lambda do |minuend, subtrahend|
subtrahend.each.with_object( minuend ) { |del| minuend.delete_at( minuend.index( del ) ) }
end
then:
subtract.call a, [1,1,3]
The answers above are good, but insufficient if you have more than 1 project (.csproj) in the same folder.
First, you easily add the "PackageReference" tag to the .csproj file (either manually, by using the nuget package manager or by using the dotnet add package command).
But then, you need to run the "restore" command manually so you can tell it which project you are trying to restore (if I just clicked the restore button that popped up, nothing happened). You can do that by running:
dotnet restore Project-File-Name.csproj
And that installs the package
Initialization and assignment are two distinct operations that happen to use the same operator ("=") here.
Take a look at Twitter's:
http://twitter.com/crossdomain.xml
<?xml version="1.0" encoding="UTF-8"?>
<cross-domain-policy xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://www.adobe.com/xml/schemas/PolicyFile.xsd">
<allow-access-from domain="twitter.com" />
<allow-access-from domain="api.twitter.com" />
<allow-access-from domain="search.twitter.com" />
<allow-access-from domain="static.twitter.com" />
<site-control permitted-cross-domain-policies="master-only"/>
<allow-http-request-headers-from domain="*.twitter.com" headers="*" secure="true"/>
</cross-domain-policy>
I was also receiving this error and discovered that "HTTP Redirection" was not turned on in Windows Server. This blog post points this out as well: http://blogs.msdn.com/b/rjacobs/archive/2010/06/30/system-web-routing-routetable-not-working-with-iis.aspx
You can either put the classes on the "row" or the "column"? Won't be visible on the cards (border) if you use it on the row. https://v4-alpha.getbootstrap.com/utilities/flexbox/#align-items
<div class="container">
<div class="row">
<div class="col-lg-4 d-flex align-items-stretch">
Some of the other answers here seem 'wacky'. Why would use a min-height or even worse a fixed height?
I thought this issue (equal heights) was part of the reason for progression away from floating block divs?
For Mysql You can use this Query
UPDATE table1 a, table2 b SET a.coloumn = b.coloumn WHERE a.id= b.id
Take a random sample without replacement of the indices, sort the indices, and take them from the original.
indices = random.sample(range(len(myList)), K)
[myList[i] for i in sorted(indices)]
Or more concisely:
[x[1] for x in sorted(random.sample(enumerate(myList),K))]
You can alternatively use a math trick and iteratively go through myList
from left to right, picking numbers with dynamically-changing probability (N-numbersPicked)/(total-numbersVisited)
. The advantage of this approach is that it's an O(N)
algorithm since it doesn't involve sorting!
from __future__ import division
def orderedSampleWithoutReplacement(seq, k):
if not 0<=k<=len(seq):
raise ValueError('Required that 0 <= sample_size <= population_size')
numbersPicked = 0
for i,number in enumerate(seq):
prob = (k-numbersPicked)/(len(seq)-i)
if random.random() < prob:
yield number
numbersPicked += 1
Proof of concept and test that probabilities are correct:
Simulated with 1 trillion pseudorandom samples over the course of 5 hours:
>>> Counter(
tuple(orderedSampleWithoutReplacement([0,1,2,3], 2))
for _ in range(10**9)
)
Counter({
(0, 3): 166680161,
(1, 2): 166672608,
(0, 2): 166669915,
(2, 3): 166667390,
(1, 3): 166660630,
(0, 1): 166649296
})
Probabilities diverge from true probabilities by less a factor of 1.0001. Running this test again resulted in a different order meaning it isn't biased towards one ordering. Running the test with fewer samples for [0,1,2,3,4], k=3
and [0,1,2,3,4,5], k=4
had similar results.
edit: Not sure why people are voting up wrong comments or afraid to upvote... NO, there is nothing wrong with this method. =)
(Also a useful note from user tegan in the comments: If this is python2, you will want to use xrange, as usual, if you really care about extra space.)
edit: Proof: Considering the uniform distribution (without replacement) of picking a subset of k
out of a population seq
of size len(seq)
, we can consider a partition at an arbitrary point i
into 'left' (0,1,...,i-1) and 'right' (i,i+1,...,len(seq)). Given that we picked numbersPicked
from the left known subset, the remaining must come from the same uniform distribution on the right unknown subset, though the parameters are now different. In particular, the probability that seq[i]
contains a chosen element is #remainingToChoose/#remainingToChooseFrom
, or (k-numbersPicked)/(len(seq)-i)
, so we simulate that and recurse on the result. (This must terminate since if #remainingToChoose == #remainingToChooseFrom, then all remaining probabilities are 1.) This is similar to a probability tree that happens to be dynamically generated. Basically you can simulate a uniform probability distribution by conditioning on prior choices (as you grow the probability tree, you pick the probability of the current branch such that it is aposteriori the same as prior leaves, i.e. conditioned on prior choices; this will work because this probability is uniformly exactly N/k).
edit: Timothy Shields mentions Reservoir Sampling, which is the generalization of this method when len(seq)
is unknown (such as with a generator expression). Specifically the one noted as "algorithm R" is O(N) and O(1) space if done in-place; it involves taking the first N element and slowly replacing them (a hint at an inductive proof is also given). There are also useful distributed variants and miscellaneous variants of reservoir sampling to be found on the wikipedia page.
edit: Here's another way to code it below in a more semantically obvious manner.
from __future__ import division
import random
def orderedSampleWithoutReplacement(seq, sampleSize):
totalElems = len(seq)
if not 0<=sampleSize<=totalElems:
raise ValueError('Required that 0 <= sample_size <= population_size')
picksRemaining = sampleSize
for elemsSeen,element in enumerate(seq):
elemsRemaining = totalElems - elemsSeen
prob = picksRemaining/elemsRemaining
if random.random() < prob:
yield element
picksRemaining -= 1
from collections import Counter
Counter(
tuple(orderedSampleWithoutReplacement([0,1,2,3], 2))
for _ in range(10**5)
)
Before understanding the transient
keyword, one has to understand the concept of serialization. If the reader knows about serialization, please skip the first point.
Serialization is the process of making the object's state persistent. That means the state of the object is converted into a stream of bytes to be used for persisting (e.g. storing bytes in a file) or transferring (e.g. sending bytes across a network). In the same way, we can use the deserialization to bring back the object's state from bytes. This is one of the important concepts in Java programming because serialization is mostly used in networking programming. The objects that need to be transmitted through the network have to be converted into bytes. For that purpose, every class or interface must implement the Serializable
interface. It is a marker interface without any methods.
transient
keyword and its purpose?By default, all of object's variables get converted into a persistent state. In some cases, you may want to avoid persisting some variables because you don't have the need to persist those variables. So you can declare those variables as transient
. If the variable is declared as transient
, then it will not be persisted. That is the main purpose of the transient
keyword.
I want to explain the above two points with the following example:
package javabeat.samples;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
class NameStore implements Serializable{
private String firstName;
private transient String middleName;
private String lastName;
public NameStore (String fName, String mName, String lName){
this.firstName = fName;
this.middleName = mName;
this.lastName = lName;
}
public String toString(){
StringBuffer sb = new StringBuffer(40);
sb.append("First Name : ");
sb.append(this.firstName);
sb.append("Middle Name : ");
sb.append(this.middleName);
sb.append("Last Name : ");
sb.append(this.lastName);
return sb.toString();
}
}
public class TransientExample{
public static void main(String args[]) throws Exception {
NameStore nameStore = new NameStore("Steve", "Middle","Jobs");
ObjectOutputStream o = new ObjectOutputStream(new FileOutputStream("nameStore"));
// writing to object
o.writeObject(nameStore);
o.close();
// reading from object
ObjectInputStream in = new ObjectInputStream(new FileInputStream("nameStore"));
NameStore nameStore1 = (NameStore)in.readObject();
System.out.println(nameStore1);
}
}
And the output will be the following:
First Name : Steve
Middle Name : null
Last Name : Jobs
Middle Name is declared as transient
, so it will not be stored in the persistent storage.
You can use <hr>
for a vertical line as well.
Set the width
to 1
and the size(height) as long as you want.
I used 500 in my example(demo):
With <hr width="1" size="500">
Query all users and filter by the list from your text file:
$Users = Get-Content 'C:\scripts\Users.txt'
Get-ADUser -Filter '*' -Properties DisplayName,Office |
Where-Object { $Users -contains $_.SamAccountName } |
Select-Object DisplayName, Office |
Export-Csv 'C:\path\to\your.csv' -NoType
Get-ADUser -Filter '*'
returns all AD user accounts. This stream of user objects is then piped into a Where-Object
filter, which checks for each object if its SamAccountName
property is contained in the user list from your input file ($Users
). Only objects with a matching account name are passed forward to the next step of the pipeline. The output can be limited by selecting the relevant properties before exporting the data.
You can further optimize the code by replacing the -contains
operator with hashtable lookups:
$Users = @{}
Get-Content 'C:\scripts\Users.txt' | ForEach-Object { $Users[$_] = $true }
Get-ADUser -Filter '*' -Properties DisplayName,Office |
Where-Object { $Users.ContainsKey($_.SamAccountName) } |
Select-Object DisplayName, Office |
Export-Csv 'C:\path\to\your.csv' -NoType
You can cast a method group into a delegate.
The delegate signature selects 1 method out of the group.
This example picks the ToString()
overload which takes a string parameter:
Func<string,string> fn = 123.ToString;
Console.WriteLine(fn("00000000"));
This example picks the ToString()
overload which takes no parameters:
Func<string> fn = 123.ToString;
Console.WriteLine(fn());
$('#myTable tr').click(function(){
$(this).remove();
return false;
});
Even a better one
$("#MyTable").on("click", "#DeleteButton", function() {
$(this).closest("tr").remove();
});
There is another consistent way (only for IE9+) in vanilla JavaScript for this:
const iframe = document.getElementById('iframe');
const handleLoad = () => console.log('loaded');
iframe.addEventListener('load', handleLoad, true)
And if you're interested in Observables this does the trick:
return Observable.fromEventPattern(
handler => iframe.addEventListener('load', handler, true),
handler => iframe.removeEventListener('load', handler)
);
Your request should be to the server, NOT the server.js file which instantiates it. So, the request should look something like this: xmlhttp.open("GET","http://localhost:8001/", true);
Also, you are trying to serve the front-end (index.html) AND serve AJAX requests at the same URI. To accomplish this, you are going to have to introduce logic to your server.js that will differentiate between your AJAX requests and a normal http access request. To do this, you'll want to either introduce GET/POST data (i.e. call http://localhost:8001/?getstring=true
) or use a different path for your AJAX requests (i.e. call http://localhost:8001/getstring
). On the server end then, you'll need to examine the request object to determine what to write on the response. For the latter option, you need to use the 'url' module to parse the request.
You are correctly calling listen()
but incorrectly writing the response. First of all, if you wish to serve index.html when navigating to http://localhost:8001/, you need to write the contents of the file to the response using response.write()
or response.end()
. First, you need to include fs=require('fs')
to get access to the filesystem. Then, you need to actually serve the file.
XMLHttpRequest needs a callback function specified if you use it asynchronously (third parameter = true, as you have done) AND want to do something with the response. The way you have it now, string
will be undefined
(or perhaps null
), because that line will execute before the AJAX request is complete (i.e. the responseText is still empty). If you use it synchronously (third parameter = false), you can write inline code as you have done. This is not recommended as it locks the browser during the request. Asynchronous operation is usually used with the onreadystatechange function, which can handle the response once it is complete. You need to learn the basics of XMLHttpRequest. Start here.
Here is a simple implementation that incorporates all of the above:
server.js:
var http = require('http'),
fs = require('fs'),
url = require('url'),
choices = ["hello world", "goodbye world"];
http.createServer(function(request, response){
var path = url.parse(request.url).pathname;
if(path=="/getstring"){
console.log("request recieved");
var string = choices[Math.floor(Math.random()*choices.length)];
console.log("string '" + string + "' chosen");
response.writeHead(200, {"Content-Type": "text/plain"});
response.end(string);
console.log("string sent");
}else{
fs.readFile('./index.html', function(err, file) {
if(err) {
// write an error response or nothing here
return;
}
response.writeHead(200, { 'Content-Type': 'text/html' });
response.end(file, "utf-8");
});
}
}).listen(8001);
console.log("server initialized");
frontend (part of index.html):
function newGame()
{
guessCnt=0;
guess="";
server();
displayHash();
displayGuessStr();
displayGuessCnt();
}
function server()
{
xmlhttp = new XMLHttpRequest();
xmlhttp.open("GET","http://localhost:8001/getstring", true);
xmlhttp.onreadystatechange=function(){
if (xmlhttp.readyState==4 && xmlhttp.status==200){
string=xmlhttp.responseText;
}
}
xmlhttp.send();
}
You will need to be comfortable with AJAX. Use the mozilla learning center to learn about XMLHttpRequest. After you can use the basic XHR object, you will most likely want to use a good AJAX library instead of manually writing cross-browser AJAX requests (for example, in IE you'll need to use an ActiveXObject instead of XHR). The AJAX in jQuery is excellent, but if you don't need everything else jQuery offers, find a good AJAX library here: http://microjs.com/. You will also need to get comfy with the node.js docs, found here. Search http://google.com for some good node.js server and static file server tutorials. http://nodetuts.com is a good place to start.
UPDATE: I have changed response.sendHeader()
to the new response.writeHead()
in the code above !!!
You need to add the hamcrest-core JAR to the classpath as described here: https://github.com/junit-team/junit4/wiki/Download-and-Install
You can do as @rmobis has specified in his answer, [Adding something more into it]
Using order by
twice:
MyTable::orderBy('coloumn1', 'DESC')
->orderBy('coloumn2', 'ASC')
->get();
and the second way to do it is,
Using raw order by
:
MyTable::orderByRaw("coloumn1 DESC, coloumn2 ASC");
->get();
Both will produce same query as follow,
SELECT * FROM `my_tables` ORDER BY `coloumn1` DESC, `coloumn2` ASC
As @rmobis specified in comment of first answer you can pass like an array to order by column like this,
$myTable->orders = array(
array('column' => 'coloumn1', 'direction' => 'desc'),
array('column' => 'coloumn2', 'direction' => 'asc')
);
one more way to do it is iterate
in loop,
$query = DB::table('my_tables');
foreach ($request->get('order_by_columns') as $column => $direction) {
$query->orderBy($column, $direction);
}
$results = $query->get();
Hope it helps :)
I've found answers here still are incomplete.
The most closest portable implementation I've found from here is: C++ preprocessor __VA_ARGS__ number of arguments
But it doen't work with the zero arguments in the GCC without at least -std=gnu++11
command line parameter.
So I decided to merge this solution with that: https://gustedt.wordpress.com/2010/06/08/detect-empty-macro-arguments/
#define UTILITY_PP_CONCAT_(v1, v2) v1 ## v2
#define UTILITY_PP_CONCAT(v1, v2) UTILITY_PP_CONCAT_(v1, v2)
#define UTILITY_PP_CONCAT5_(_0, _1, _2, _3, _4) _0 ## _1 ## _2 ## _3 ## _4
#define UTILITY_PP_IDENTITY_(x) x
#define UTILITY_PP_IDENTITY(x) UTILITY_PP_IDENTITY_(x)
#define UTILITY_PP_VA_ARGS_(...) __VA_ARGS__
#define UTILITY_PP_VA_ARGS(...) UTILITY_PP_VA_ARGS_(__VA_ARGS__)
#define UTILITY_PP_IDENTITY_VA_ARGS_(x, ...) x, __VA_ARGS__
#define UTILITY_PP_IDENTITY_VA_ARGS(x, ...) UTILITY_PP_IDENTITY_VA_ARGS_(x, __VA_ARGS__)
#define UTILITY_PP_IIF_0(x, ...) __VA_ARGS__
#define UTILITY_PP_IIF_1(x, ...) x
#define UTILITY_PP_IIF(c) UTILITY_PP_CONCAT_(UTILITY_PP_IIF_, c)
#define UTILITY_PP_HAS_COMMA(...) UTILITY_PP_IDENTITY(UTILITY_PP_VA_ARGS_TAIL(__VA_ARGS__, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0))
#define UTILITY_PP_IS_EMPTY_TRIGGER_PARENTHESIS_(...) ,
#define UTILITY_PP_IS_EMPTY(...) UTILITY_PP_IS_EMPTY_( \
/* test if there is just one argument, eventually an empty one */ \
UTILITY_PP_HAS_COMMA(__VA_ARGS__), \
/* test if _TRIGGER_PARENTHESIS_ together with the argument adds a comma */ \
UTILITY_PP_HAS_COMMA(UTILITY_PP_IS_EMPTY_TRIGGER_PARENTHESIS_ __VA_ARGS__), \
/* test if the argument together with a parenthesis adds a comma */ \
UTILITY_PP_HAS_COMMA(__VA_ARGS__ ()), \
/* test if placing it between _TRIGGER_PARENTHESIS_ and the parenthesis adds a comma */ \
UTILITY_PP_HAS_COMMA(UTILITY_PP_IS_EMPTY_TRIGGER_PARENTHESIS_ __VA_ARGS__ ()))
#define UTILITY_PP_IS_EMPTY_(_0, _1, _2, _3) UTILITY_PP_HAS_COMMA(UTILITY_PP_CONCAT5_(UTILITY_PP_IS_EMPTY_IS_EMPTY_CASE_, _0, _1, _2, _3))
#define UTILITY_PP_IS_EMPTY_IS_EMPTY_CASE_0001 ,
#define UTILITY_PP_VA_ARGS_SIZE(...) UTILITY_PP_IIF(UTILITY_PP_IS_EMPTY(__VA_ARGS__))(0, UTILITY_PP_VA_ARGS_SIZE_(__VA_ARGS__, UTILITY_PP_VA_ARGS_SEQ64()))
#define UTILITY_PP_VA_ARGS_SIZE_(...) UTILITY_PP_IDENTITY(UTILITY_PP_VA_ARGS_TAIL(__VA_ARGS__))
#define UTILITY_PP_VA_ARGS_TAIL(_0,_1,_2,_3,_4,_5,_6,_7,_8,_9,_10,_11,_12,_13,_14, x, ...) x
#define UTILITY_PP_VA_ARGS_SEQ64() 15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0
#define EATER0(...)
#define EATER1(...) ,
#define EATER2(...) (/*empty*/)
#define EATER3(...) (/*empty*/),
#define EATER4(...) EATER1
#define EATER5(...) EATER2
#define MAC0() ()
#define MAC1(x) ()
#define MACV(...) ()
#define MAC2(x,y) whatever
static_assert(UTILITY_PP_VA_ARGS_SIZE() == 0, "1");
static_assert(UTILITY_PP_VA_ARGS_SIZE(/*comment*/) == 0, "2");
static_assert(UTILITY_PP_VA_ARGS_SIZE(a) == 1, "3");
static_assert(UTILITY_PP_VA_ARGS_SIZE(a, b) == 2, "4");
static_assert(UTILITY_PP_VA_ARGS_SIZE(a, b, c) == 3, "5");
static_assert(UTILITY_PP_VA_ARGS_SIZE(a, b, c, d) == 4, "6");
static_assert(UTILITY_PP_VA_ARGS_SIZE(a, b, c, d, e) == 5, "7");
static_assert(UTILITY_PP_VA_ARGS_SIZE((void)) == 1, "8");
static_assert(UTILITY_PP_VA_ARGS_SIZE((void), b, c, d) == 4, "9");
static_assert(UTILITY_PP_VA_ARGS_SIZE(UTILITY_PP_IS_EMPTY_TRIGGER_PARENTHESIS_) == 1, "10");
static_assert(UTILITY_PP_VA_ARGS_SIZE(EATER0) == 1, "11");
static_assert(UTILITY_PP_VA_ARGS_SIZE(EATER1) == 1, "12");
static_assert(UTILITY_PP_VA_ARGS_SIZE(EATER2) == 1, "13");
static_assert(UTILITY_PP_VA_ARGS_SIZE(EATER3) == 1, "14");
static_assert(UTILITY_PP_VA_ARGS_SIZE(EATER4) == 1, "15");
static_assert(UTILITY_PP_VA_ARGS_SIZE(MAC0) == 1, "16");
// a warning in msvc
static_assert(UTILITY_PP_VA_ARGS_SIZE(MAC1) == 1, "17");
static_assert(UTILITY_PP_VA_ARGS_SIZE(MACV) == 1, "18");
// This one will fail because MAC2 is not called correctly
//static_assert(UTILITY_PP_VA_ARGS_SIZE(MAC2) == 1, "19");
c++11
, msvc 2015
, gcc 4.7.1
, clang 3.0
I hope to provide more background knowledge here.
First, constructor signature of the of method threading::Thread:
class threading.Thread(group=None, target=None, name=None, args=(), kwargs={}, *, daemon=None)
args is the argument tuple for the target invocation. Defaults to ().
Second, A quirk in Python about tuple
:
Empty tuples are constructed by an empty pair of parentheses; a tuple with one item is constructed by following a value with a comma (it is not sufficient to enclose a single value in parentheses).
On the other hand, a string is a sequence of characters, like 'abc'[1] == 'b'
. So if send a string to args
, even in parentheses (still a sting), each character will be treated as a single parameter.
However, Python is so integrated and is not like JavaScript where extra arguments can be tolerated. Instead, it throws an TypeError
to complain.
I had the same issue for a while and had a very hard time figuring it out. My problem was that I had the site working for a while with the sessions working right, and then all of the sudden everything broke.
Apparently, your session_save_path(), for me it was /var/lib/php5/, needs to have correct permissions (the user running php, eg www-data needs write access to the directory). I accidentally changed it, breaking sessions completely.
Run sudo chmod -R 700 /var/lib/php5/
and then sudo chown -R www-data /var/lib/php5/
so that the php user has access to the folder.
: | git mktree | git diff --shortstat --stdin
Or:
git ls-tree @ | sed '1i\\' | git mktree --batch | xargs | git diff-tree --shortstat --stdin
The following assumes command-line access via iTerm / Terminal to bitbucket.
For MacOS Sierra 10.12.5, my system manifested an equivalent problem - asking for my SSH passphrase on each connection to bitbucket.
The issue has to do with OpenSSH updates in macOS 10.12.2, which are described here in Technical Note TN2449.
You very well might want to tailor your solution, but the following will work when added to your ~/.ssh/config file:
Host *
UseKeychain yes
For more information on ssh configs, take a look at the man pages for ssh_config:
% man ssh_config
One other thing: there is a good write-up on superuser here that discusses this problem and various solutions depending on your needs and setup.
instead of remove()
you can use exclude()
function to remove an object from the queryset.
it's syntax is similar to filter()
eg : -
qs = qs.exclude(id= 1)
in above code it removes all objects from qs with id '1'
additional info :-
filter()
used to select specific objects but exclude()
used to remove
If you need to consider localisation (for those of us outside the US!) and it's possible in your environment, I'd suggest:
Define data types for each component of the name - NOTE: some cultures have more than two names! Then have a type for the full name,
Then localisation becomes simple (as far as names are concerned).
The same applies to addresses, BTW - different formats!
Android Studio Version 2.3
You can create a Service without a Main Activity by following a few easy steps. You'll be able to install this app through Android Studio and debug it like a normal app.
First, create a project in Android Studio without an activity. Then create your Service class and add the service to your AndroidManifest.xml
<application android:allowBackup="true"
android:label="@string/app_name"
android:icon="@mipmap/ic_launcher"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<service android:name="com.whatever.myservice.MyService">
<intent-filter>
<action android:name="com.whatever.myservice.MyService" />
</intent-filter>
</service>
</application>
Now, in the drop down next to the "Run" button(green arrow), go to "edit configurations" and within the "Launch Options" choose "Nothing". This will allow you to install your Service without Android Studio complaining about not having a Main Activity.
Once installed, the service will NOT be running but you will be able to start it with this adb shell command...
am startservice -n com.whatever.myservice/.MyService
Can check it's running with...
ps | grep whatever
I haven't tried yet but you can likely have Android Studio automatically start the service too. This would be done in that "Edit Configurations" menu.
Can't you use the classical 2>
redirection operator.
(Get-PSSessionConfiguration -Name "MyShellUri" -ErrorAction SilentlyContinue) 2> $NULL
if(!$?){
'foo'
}
I don't like errors so I avoid them at all costs.
Use CHARINDEX
to find the ";". Then use SUBSTRING
to just return the part before the ";".
I think the problem is given in the error message, although it is not very easy to spot:
IndexError: too many indices for array
xs = data[:, col["l1" ]]
'Too many indices' means you've given too many index values. You've given 2 values as you're expecting data to be a 2D array. Numpy is complaining because data
is not 2D (it's either 1D or None).
This is a bit of a guess - I wonder if one of the filenames you pass to loadfile() points to an empty file, or a badly formatted one? If so, you might get an array returned that is either 1D, or even empty (np.array(None)
does not throw an Error
, so you would never know...). If you want to guard against this failure, you can insert some error checking into your loadfile
function.
I highly recommend in your for
loop inserting:
print(data)
This will work in Python 2.x or 3.x and might reveal the source of the issue. You might well find it is only one value of your outputs_l1
list (i.e. one file) that is giving the issue.
If you're using .NET 2.0, try XmlReader
and its subclasses XmlTextReader
, and XmlValidatingReader
. They provide a fast, lightweight (memory usage, etc.), forward-only way to parse an XML file.
If you need XPath
capabilities, try the XPathNavigator
. If you need the entire document in memory try XmlDocument
.
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script>
$( document ).ready(function() {
$('h1').css('color','#3498db');
});
</script>
<style>
.wrapper{
height:450px;
background:#ededed;
text-align:center
}
</style>
</head>
<body>
<div class="wrapper">
<h1>Title</h1>
</div>
</body>
</html>
For me it is resolved by adding types to the angular compiler options.
"angularCompilerOptions": {
"fullTemplateTypeCheck": true,
"strictInjectionParameters": true,
"types": [ "node" ]
}
Small comparison table Java vs. JavaScript vs. PHP.
1. Java URLEncoder.encode (using UTF8 charset)
2. JavaScript encodeURIComponent
3. JavaScript escape
4. PHP urlencode
5. PHP rawurlencode
char JAVA JavaScript --PHP---
[ ] + %20 %20 + %20
[!] %21 ! %21 %21 %21
[*] * * * %2A %2A
['] %27 ' %27 %27 %27
[(] %28 ( %28 %28 %28
[)] %29 ) %29 %29 %29
[;] %3B %3B %3B %3B %3B
[:] %3A %3A %3A %3A %3A
[@] %40 %40 @ %40 %40
[&] %26 %26 %26 %26 %26
[=] %3D %3D %3D %3D %3D
[+] %2B %2B + %2B %2B
[$] %24 %24 %24 %24 %24
[,] %2C %2C %2C %2C %2C
[/] %2F %2F / %2F %2F
[?] %3F %3F %3F %3F %3F
[#] %23 %23 %23 %23 %23
[[] %5B %5B %5B %5B %5B
[]] %5D %5D %5D %5D %5D
----------------------------------------
[~] %7E ~ %7E %7E ~
[-] - - - - -
[_] _ _ _ _ _
[%] %25 %25 %25 %25 %25
[\] %5C %5C %5C %5C %5C
----------------------------------------
char -JAVA- --JavaScript-- -----PHP------
[ä] %C3%A4 %C3%A4 %E4 %C3%A4 %C3%A4
[?] %D1%84 %D1%84 %u0444 %D1%84 %D1%84
If you'd start Tomcat manually (not as service), then the CATALINA_OPTS environment variable is the way to go. If you'd start it as a service, then the settings are probably stored somewhere in the registry. I have Tomcat 6 installed in my machine and I found the settings at the HKLM\SOFTWARE\Apache Software Foundation\Procrun 2.0\Tomcat6\Parameters\Java
key.
Get yesterday date in javascript
You have to run code and check it output
var today = new Date();_x000D_
var yesterday = new Date(today);_x000D_
_x000D_
yesterday.setDate(today.getDate() - 1);_x000D_
console.log("Original Date : ",yesterday);_x000D_
_x000D_
const monthNames = [_x000D_
"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"_x000D_
];_x000D_
var month = today.getMonth() + 1_x000D_
yesterday = yesterday.getDate() + ' ' + monthNames[month] + ' ' + yesterday.getFullYear()_x000D_
_x000D_
console.log("Modify Date : ",yesterday);
_x000D_
Following link might help you. Here's code from the following link.
reference : getting-the-client-ip-via-asp-net-web-api
using System.Net.Http;
using System.ServiceModel.Channels;
using System.Web;
using System.Web.Http;
namespace Trikks.Controllers.Api
{
public class IpController : ApiController
{
public string GetIp()
{
return GetClientIp();
}
private string GetClientIp(HttpRequestMessage request = null)
{
request = request ?? Request;
if (request.Properties.ContainsKey("MS_HttpContext"))
{
return ((HttpContextWrapper)request.Properties["MS_HttpContext"]).Request.UserHostAddress;
}
else if (request.Properties.ContainsKey(RemoteEndpointMessageProperty.Name))
{
RemoteEndpointMessageProperty prop = (RemoteEndpointMessageProperty)request.Properties[RemoteEndpointMessageProperty.Name];
return prop.Address;
}
else if (HttpContext.Current != null)
{
return HttpContext.Current.Request.UserHostAddress;
}
else
{
return null;
}
}
}
}
Another way of doing this is below.
reference: how-to-access-the-client-s-ip-address
For web hosted version
string clientAddress = HttpContext.Current.Request.UserHostAddress;
For self hosted
object property;
Request.Properties.TryGetValue(typeof(RemoteEndpointMessageProperty).FullName, out property);
RemoteEndpointMessageProperty remoteProperty = property as RemoteEndpointMessageProperty;
Try this code.. Its really works..
if (!email
.matches("^[\\w-_\\.+]*[\\w-_\\.]\\@([\\w]+\\.)+[\\w]+[\\w]$"))
{
Toast.makeText(getApplicationContext(), "Email is invalid",
Toast.LENGTH_LONG).show();
return;
}
Checkboxes can be really weird in JS. You're best off checking for the presence of the checked
attribute. (I've had older jQuery versions return true even if checked
is set to 'false'.) Once you've determined that something is checked then you can get the value from the value
attribute.
I got the same question here. If the document is huge, it is not a good idea to use XmlDocument. The fact is that the first element is the root element, based on which XmlReader can be used to get the root element. Using XmlReader will be much more efficient than using XmlDocument as it doesn't require load the whole document into memory.
using (XmlReader reader = XmlReader.Create(<your_xml_file>)) {
while (reader.Read()) {
// first element is the root element
if (reader.NodeType == XmlNodeType.Element) {
System.Console.WriteLine(reader.Name);
break;
}
}
}
In TortoiseSVN you can access and modify some settings in the context menu "Settings/General" in explorer.
E.g. the "Global ignore pattern" can be edited directly in the dialog box. Such changings are the stored in the registry as bahrep pointed out in her answer.
(Win10/TortoiseSVN 1.13.1, Build 28686 - 64 Bit)
To make a fill completely transparent, fill="transparent"
seems to work in modern browsers. But it didn't work in Microsoft Word (for Mac), I had to use fill-opacity="0"
.
Yes, it's
use Illuminate\Support\Facades\Redirect;
return Redirect::to('http://heera.it');
Update: Redirect::away('url')
(For external link, Laravel Version 4.19):
public function away($path, $status = 302, $headers = array())
{
return $this->createRedirect($path, $status, $headers);
}
import re
sentence = ' hello apple'
re.sub(' ','',sentence) #helloworld (remove all spaces)
re.sub(' ',' ',sentence) #hello world (remove double spaces)
Check your computer's Date and Time. If it is wrong, update it to the current time or set it automatically to get the time from the Internet.
Because certificates are tied to a fixed time period, if your clock is wrong, you are likely to get errors like this. In that scenario, by fixing the time, the problem will be fixed.
Example outputs *.csv files in directory recursive searching Subdirectories using Files.find() from java.nio:
String path = "C:/Daten/ibiss/ferret/";
logger.debug("Path:" + path);
try (Stream<Path> fileList = Files.find(Paths.get(path), Integer.MAX_VALUE,
(filePath, fileAttr) -> fileAttr.isRegularFile() && filePath.toString().endsWith("csv"))) {
List<String> someThingNew = fileList.sorted().map(String::valueOf).collect(Collectors.toList());
for (String t : someThingNew) {
t.toString();
logger.debug("Filename:" + t);
}
}
Posting this example, as I had trouble understanding howto pass the filename parameter in the #1 example given by Bryan, using foreach on Stream-result -
Hope this helps.
you can try writing the command using 'sudo':
sudo mkdir DirName
You can use the plyr
package.
For example a nested list of the form
l <- list(a = list(var.1 = 1, var.2 = 2, var.3 = 3)
, b = list(var.1 = 4, var.2 = 5, var.3 = 6)
, c = list(var.1 = 7, var.2 = 8, var.3 = 9)
, d = list(var.1 = 10, var.2 = 11, var.3 = 12)
)
has now a length of 4 and each list in l
contains another list of the length 3.
Now you can run
library (plyr)
df <- ldply (l, data.frame)
and should get the same result as in the answer @Marek and @nico.
I had a similar problem recently, and here's what I did:
SELECT
columnname as 'Original_Value',
LEN(LTRIM(columnname)) as 'Orig_Val_Char_Count',
N'['+columnname+']' as 'UnicodeStr_Value',
LEN(N'['+columnname+']')-2 as 'True_Char_Count'
FROM mytable
The first two columns look at the original value and count the characters (minus leading/trailing spaces).
I needed to compare that with the true count of characters, which is why I used the second LEN function. It sets the column value to a string, forces that string to Unicode, and then counts the characters.
By using the brackets, you ensure that any leading or trailing spaces are also counted as characters; of course, you don't want to count the brackets themselves, so you subtract 2 at the end.
Such inexplicable exceptions are often a result of an unclean xib
file.
Open the xib
in xcode, select File's Owner and click on the "Connection Inspector" (upper right arrow), to see all outlets at once.
Look for !
s which indicates a missing outlet.
It's completely up to you. You can either put them in the header or not, as long as the elements within them are internal navigation elements only (i.e. don't link to external sites such as a twitter or facebook account) then it's fine.
They tend to get placed in a header simply because that's where navigation often goes, but it's not set in stone.
You can read more about it at HTML5 Doctor.
Long approach but you can get all the data's using just .frm
files. Of course you need other files in the mysql/data
directory.
One day my harddisk crashed and got the booting blue screen error. I try connecting with multiple machine and it didn't work. Since it is a booting error i was concered about the files. and i tryed with the secondary harddisk and try to recover the folders and files. I also backed up the full xampp folder c:/xampp
just in case, Because I had no back of the recent databases i got really worried how to retrieve the database. we have lot of clients project management and personal doc in the database.
None of the method listed on the stackoverflow comment works, at-least for me. It took me 2 full days googling for the answer to get the data's from the .frm
files. Came across multiple approaches from many people but everything was frustration and getting some error or another when implementing. If most of them get it working (based on their comment) then what am i missing.
Because i was so desperate I even reinstall windows which result in loosing all my softwares and tried again. But still the same error
i found the solution in his blog and i managed to get it working exactly the same way he did. Let me give the credit to this guy, Dustin Davis (https://dustindavis.me/restoring-mysql-innodb-files-on-windows/). You could jump from here to his blog and try his method, pretty clear and easy to follow.
But there are something i discovered when trying his approach which he hasn't explained in his blog and i will try my best to explain how i did and what you need to look for.
IMPORTANT: Make sure you to install the same version of XAMPP. You cannot copy paste from older XAMPP to a new version. This will result in __config
or __tracking
errors.
readme_en.txt
file. which is in the root directory of the xampp.###### ApacheFriends XAMPP Version X.X.XX ######
xampp(old folder)/mysql/data/
ibdata1
ib_logfile0
ib_logfile1
<databasename>/*.frm
<databasename>/*.ibd
mysql/data
folder and replace the ibdata1
, ib_logfile0
, and ib_logfile1
database
folder from your old xampp backup to the newly installed xampp folder c:/xampp/mysql/data/
that contain .frm
and .ibd
files, If you are not sure try with one database.c:/xampp/mysql/bin
and look for my.cn
.my.cn
file and look for #skip-innodb
and under that look for the line that says innodb_log_file_size=5M
change it to 170M
. innodb_log_file_size=170M
. This is your log file size and if you are not sure just set it to 170
mysql_start.bat
(Windows Batch file) that is in the c:/xampp/
directory.Add –innodb_force_recovery=6
after the ... --console
....
mysql\bin\mysqld --defaults-file=mysql\bin\my.ini --standalone --console
–innodb_force_recovery=6
if errorlevel 1 goto error
goto finish
phpmyadmin
and check for your database and its tables. if you do not get any errors you are on the right track.I was able to make parent window disable. However making the pop-up always keep raised didn't work. Below code works even for frame tags. Just add id and class property to frame tag and it works well there too.
In parent window use:
<head>
<style>
.disableWin{
pointer-events: none;
}
</style>
<script type="text/javascript">
function openPopUp(url) {
disableParentWin();
var win = window.open(url);
win.focus();
checkPopUpClosed(win);
}
/*Function to detect pop up is closed and take action to enable parent window*/
function checkPopUpClosed(win) {
var timer = setInterval(function() {
if(win.closed) {
clearInterval(timer);
enableParentWin();
}
}, 1000);
}
/*Function to enable parent window*/
function enableParentWin() {
window.document.getElementById('mainDiv').class="";
}
/*Function to enable parent window*/
function disableParentWin() {
window.document.getElementById('mainDiv').class="disableWin";
}
</script>
</head>
<body>
<div id="mainDiv class="">
</div>
</body>
>>> list1 = [[], [], [], [], [], 'text', 'text2', [], 'moreText']
>>> list2 = [e for e in list1 if e]
>>> list2
['text', 'text2', 'moreText']
public static class ErrorCode
{
public const IDictionary<string , string > m_ErrorCodeDic;
public static ErrorCode()
{
m_ErrorCodeDic = new Dictionary<string, string>()
{ {"1","User name or password problem"} };
}
}
Probably initialise in the constructor.
Try this one for CLOB sizes bigger than VARCHAR2:
We have to split the CLOB in parts of "VARCHAR2 compatible" sizes, run lengthb through every part of the CLOB data, and summarize all results.
declare
my_sum int;
begin
for x in ( select COLUMN, ceil(DBMS_LOB.getlength(COLUMN) / 2000) steps from TABLE )
loop
my_sum := 0;
for y in 1 .. x.steps
loop
my_sum := my_sum + lengthb(dbms_lob.substr( x.COLUMN, 2000, (y-1)*2000+1 ));
-- some additional output
dbms_output.put_line('step:' || y );
dbms_output.put_line('char length:' || DBMS_LOB.getlength(dbms_lob.substr( x.COLUMN, 2000 , (y-1)*2000+1 )));
dbms_output.put_line('byte length:' || lengthb(dbms_lob.substr( x.COLUMN, 2000, (y-1)*2000+1 )));
continue;
end loop;
dbms_output.put_line('char summary:' || DBMS_LOB.getlength(x.COLUMN));
dbms_output.put_line('byte summary:' || my_sum);
continue;
end loop;
end;
/
var element = document.getElementById('example_id');
var remove_class = 'example_class';
element.className = element.className.replace(' ' + remove_class, '').replace(remove_class, '');
This maybe more clear:
static NetworkInterface GetNetworkInterface(string macAddress)
{
foreach(NetworkInterface ni in NetworkInterface.GetAllNetworkInterfaces())
{
if (macAddress == ni.GetPhysicalAddress().ToString())
return ni;
}
return null;
}
static ManagementObject GetNetworkInterfaceManagementObject(string macAddress)
{
NetworkInterface ni = GetNetworkInterface(macAddress);
if (ni == null)
return null;
ManagementClass managementClass = new ManagementClass("Win32_NetworkAdapterConfiguration");
ManagementObjectCollection moc = managementClass.GetInstances();
foreach(ManagementObject mo in moc)
{
if (mo["settingID"].ToString() == ni.Id)
return mo;
}
return null;
}
static bool SetupNIC(string macAddress, string ip, string subnet, string gateway, string dns)
{
try
{
ManagementObject mo = GetNetworkInterfaceManagementObject(macAddress);
//Set IP
ManagementBaseObject mboIP = mo.GetMethodParameters("EnableStatic");
mboIP["IPAddress"] = new string[] { ip };
mboIP["SubnetMask"] = new string[] { subnet };
mo.InvokeMethod("EnableStatic", mboIP, null);
//Set Gateway
ManagementBaseObject mboGateway = mo.GetMethodParameters("SetGateways");
mboGateway["DefaultIPGateway"] = new string[] { gateway };
mboGateway["GatewayCostMetric"] = new int[] { 1 };
mo.InvokeMethod("SetGateways", mboGateway, null);
//Set DNS
ManagementBaseObject mboDNS = mo.GetMethodParameters("SetDNSServerSearchOrder");
mboDNS["DNSServerSearchOrder"] = new string[] { dns };
mo.InvokeMethod("SetDNSServerSearchOrder", mboDNS, null);
return true;
}
catch (Exception e)
{
return false;
}
}
I hope this will help you
Create table :
create table users (id int,first_name varchar(10),last_name varchar(10));
Insert values into the table :
insert into users (id,first_name,last_name) values(1,'Abhishek','Anand');
Loading URL to WebView is very easy. Just create a WebView in your storyboard and then you can use the following code to load url.
let url = NSURL (string: "https://www.simplifiedios.net");
let request = NSURLRequest(URL: url!);
webView.loadRequest(request);
As simple as that only 3 lines of codes :)
Ref: UIWebView Example
In Spring Boot 2.2.x
you need to configure it like this:
@Bean
public ObjectMapper objectMapper(Jackson2ObjectMapperBuilder builder) {
return builder.build()
}
Kotlin:
@Bean
fun objectMapper(builder: Jackson2ObjectMapperBuilder) = builder.build()
do adb pull \sdcard\log.txt C:Users\admin\Desktop
$ if [ "$s1" == "$s2" ]; then echo match; fi
match
$ test "s1" = "s2" ;echo match
match
$
With jQuery date format :
$.format.date(new Date(), 'yyyy/MM/dd HH:mm:ss');
https://github.com/phstc/jquery-dateFormat
Enjoy
Unless I'm misunderstanding, you lost your .ssh
directory containing your private key on your local machine and so you want to remove the public key which was on a server and which allowed key-based login.
In that case, it will be stored in the .ssh/authorized_keys
file in your home directory on the server. You can just edit this file with a text editor and delete the relevant line if you can identify it (even easier if it's the only entry!).
I hope that key wasn't your only method of access to the server and you have some other way of logging in and editing the file. You can either manually add a new public key to authorised_keys
file or use ssh-copy-id
. Either way, you'll need password authentication set up for your account on the server, or some other identity or access method to get to the authorized_keys
file on the server.
ssh-add
adds identities to your SSH agent which handles management of your identities locally and "the connection to the agent is forwarded over SSH remote logins, and the user can thus use the privileges given by the identities anywhere in the network in a secure way." (man page), so I don't think it's what you want in this case. It doesn't have any way to get your public key onto a server without you having access to said server via an SSH login as far as I know.
You can try this in your Action:
return DateTime.Now.ToString("yyyy-MM-ddTHH:mm:ss");
And this in your Ajax success:
success: function (resultDateString) {
var date = new Date(resultDateString);
}
Or this in your View: (Javascript plus C#)
var date = new Date('@DateTime.Now.ToString("yyyy-MM-ddTHH:mm:ss")');
I was presented with this problem about a year ago when it came to looking up user entered information about a oil rig in a database of miscellaneous information. The goal was to do some sort of fuzzy string search that could identify the database entry with the most common elements.
Part of the research involved implementing the Levenshtein distance algorithm, which determines how many changes must be made to a string or phrase to turn it into another string or phrase.
The implementation I came up with was relatively simple, and involved a weighted comparison of the length of the two phrases, the number of changes between each phrase, and whether each word could be found in the target entry.
The article is on a private site so I'll do my best to append the relevant contents here:
Fuzzy String Matching is the process of performing a human-like estimation of the similarity of two words or phrases. In many cases, it involves identifying words or phrases which are most similar to each other. This article describes an in-house solution to the fuzzy string matching problem and its usefulness in solving a variety of problems which can allow us to automate tasks which previously required tedious user involvement.
Introduction
The need to do fuzzy string matching originally came about while developing the Gulf of Mexico Validator tool. What existed was a database of known gulf of Mexico oil rigs and platforms, and people buying insurance would give us some badly typed out information about their assets and we had to match it to the database of known platforms. When there was very little information given, the best we could do is rely on an underwriter to "recognize" the one they were referring to and call up the proper information. This is where this automated solution comes in handy.
I spent a day researching methods of fuzzy string matching, and eventually stumbled upon the very useful Levenshtein distance algorithm on Wikipedia.
Implementation
After reading about the theory behind it, I implemented and found ways to optimize it. This is how my code looks like in VBA:
'Calculate the Levenshtein Distance between two strings (the number of insertions,
'deletions, and substitutions needed to transform the first string into the second)
Public Function LevenshteinDistance(ByRef S1 As String, ByVal S2 As String) As Long
Dim L1 As Long, L2 As Long, D() As Long 'Length of input strings and distance matrix
Dim i As Long, j As Long, cost As Long 'loop counters and cost of substitution for current letter
Dim cI As Long, cD As Long, cS As Long 'cost of next Insertion, Deletion and Substitution
L1 = Len(S1): L2 = Len(S2)
ReDim D(0 To L1, 0 To L2)
For i = 0 To L1: D(i, 0) = i: Next i
For j = 0 To L2: D(0, j) = j: Next j
For j = 1 To L2
For i = 1 To L1
cost = Abs(StrComp(Mid$(S1, i, 1), Mid$(S2, j, 1), vbTextCompare))
cI = D(i - 1, j) + 1
cD = D(i, j - 1) + 1
cS = D(i - 1, j - 1) + cost
If cI <= cD Then 'Insertion or Substitution
If cI <= cS Then D(i, j) = cI Else D(i, j) = cS
Else 'Deletion or Substitution
If cD <= cS Then D(i, j) = cD Else D(i, j) = cS
End If
Next i
Next j
LevenshteinDistance = D(L1, L2)
End Function
Simple, speedy, and a very useful metric. Using this, I created two separate metrics for evaluating the similarity of two strings. One I call "valuePhrase" and one I call "valueWords". valuePhrase is just the Levenshtein distance between the two phrases, and valueWords splits the string into individual words, based on delimiters such as spaces, dashes, and anything else you'd like, and compares each word to each other word, summing up the shortest Levenshtein distance connecting any two words. Essentially, it measures whether the information in one 'phrase' is really contained in another, just as a word-wise permutation. I spent a few days as a side project coming up with the most efficient way possible of splitting a string based on delimiters.
valueWords, valuePhrase, and Split function:
Public Function valuePhrase#(ByRef S1$, ByRef S2$)
valuePhrase = LevenshteinDistance(S1, S2)
End Function
Public Function valueWords#(ByRef S1$, ByRef S2$)
Dim wordsS1$(), wordsS2$()
wordsS1 = SplitMultiDelims(S1, " _-")
wordsS2 = SplitMultiDelims(S2, " _-")
Dim word1%, word2%, thisD#, wordbest#
Dim wordsTotal#
For word1 = LBound(wordsS1) To UBound(wordsS1)
wordbest = Len(S2)
For word2 = LBound(wordsS2) To UBound(wordsS2)
thisD = LevenshteinDistance(wordsS1(word1), wordsS2(word2))
If thisD < wordbest Then wordbest = thisD
If thisD = 0 Then GoTo foundbest
Next word2
foundbest:
wordsTotal = wordsTotal + wordbest
Next word1
valueWords = wordsTotal
End Function
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' SplitMultiDelims
' This function splits Text into an array of substrings, each substring
' delimited by any character in DelimChars. Only a single character
' may be a delimiter between two substrings, but DelimChars may
' contain any number of delimiter characters. It returns a single element
' array containing all of text if DelimChars is empty, or a 1 or greater
' element array if the Text is successfully split into substrings.
' If IgnoreConsecutiveDelimiters is true, empty array elements will not occur.
' If Limit greater than 0, the function will only split Text into 'Limit'
' array elements or less. The last element will contain the rest of Text.
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Function SplitMultiDelims(ByRef Text As String, ByRef DelimChars As String, _
Optional ByVal IgnoreConsecutiveDelimiters As Boolean = False, _
Optional ByVal Limit As Long = -1) As String()
Dim ElemStart As Long, N As Long, M As Long, Elements As Long
Dim lDelims As Long, lText As Long
Dim Arr() As String
lText = Len(Text)
lDelims = Len(DelimChars)
If lDelims = 0 Or lText = 0 Or Limit = 1 Then
ReDim Arr(0 To 0)
Arr(0) = Text
SplitMultiDelims = Arr
Exit Function
End If
ReDim Arr(0 To IIf(Limit = -1, lText - 1, Limit))
Elements = 0: ElemStart = 1
For N = 1 To lText
If InStr(DelimChars, Mid(Text, N, 1)) Then
Arr(Elements) = Mid(Text, ElemStart, N - ElemStart)
If IgnoreConsecutiveDelimiters Then
If Len(Arr(Elements)) > 0 Then Elements = Elements + 1
Else
Elements = Elements + 1
End If
ElemStart = N + 1
If Elements + 1 = Limit Then Exit For
End If
Next N
'Get the last token terminated by the end of the string into the array
If ElemStart <= lText Then Arr(Elements) = Mid(Text, ElemStart)
'Since the end of string counts as the terminating delimiter, if the last character
'was also a delimiter, we treat the two as consecutive, and so ignore the last elemnent
If IgnoreConsecutiveDelimiters Then If Len(Arr(Elements)) = 0 Then Elements = Elements - 1
ReDim Preserve Arr(0 To Elements) 'Chop off unused array elements
SplitMultiDelims = Arr
End Function
Measures of Similarity
Using these two metrics, and a third which simply computes the distance between two strings, I have a series of variables which I can run an optimization algorithm to achieve the greatest number of matches. Fuzzy string matching is, itself, a fuzzy science, and so by creating linearly independent metrics for measuring string similarity, and having a known set of strings we wish to match to each other, we can find the parameters that, for our specific styles of strings, give the best fuzzy match results.
Initially, the goal of the metric was to have a low search value for for an exact match, and increasing search values for increasingly permuted measures. In an impractical case, this was fairly easy to define using a set of well defined permutations, and engineering the final formula such that they had increasing search values results as desired.
In the above screenshot, I tweaked my heuristic to come up with something that I felt scaled nicely to my perceived difference between the search term and result. The heuristic I used for Value Phrase
in the above spreadsheet was =valuePhrase(A2,B2)-0.8*ABS(LEN(B2)-LEN(A2))
. I was effectively reducing the penalty of the Levenstein distance by 80% of the difference in the length of the two "phrases". This way, "phrases" that have the same length suffer the full penalty, but "phrases" which contain 'additional information' (longer) but aside from that still mostly share the same characters suffer a reduced penalty. I used the Value Words
function as is, and then my final SearchVal
heuristic was defined as =MIN(D2,E2)*0.8+MAX(D2,E2)*0.2
- a weighted average. Whichever of the two scores was lower got weighted 80%, and 20% of the higher score. This was just a heuristic that suited my use case to get a good match rate. These weights are something that one could then tweak to get the best match rate with their test data.
As you can see, the last two metrics, which are fuzzy string matching metrics, already have a natural tendency to give low scores to strings that are meant to match (down the diagonal). This is very good.
Application To allow the optimization of fuzzy matching, I weight each metric. As such, every application of fuzzy string match can weight the parameters differently. The formula that defines the final score is a simply combination of the metrics and their weights:
value = Min(phraseWeight*phraseValue, wordsWeight*wordsValue)*minWeight
+ Max(phraseWeight*phraseValue, wordsWeight*wordsValue)*maxWeight
+ lengthWeight*lengthValue
Using an optimization algorithm (neural network is best here because it is a discrete, multi-dimentional problem), the goal is now to maximize the number of matches. I created a function that detects the number of correct matches of each set to each other, as can be seen in this final screenshot. A column or row gets a point if the lowest score is assigned the the string that was meant to be matched, and partial points are given if there is a tie for the lowest score, and the correct match is among the tied matched strings. I then optimized it. You can see that a green cell is the column that best matches the current row, and a blue square around the cell is the row that best matches the current column. The score in the bottom corner is roughly the number of successful matches and this is what we tell our optimization problem to maximize.
The algorithm was a wonderful success, and the solution parameters say a lot about this type of problem. You'll notice the optimized score was 44, and the best possible score is 48. The 5 columns at the end are decoys, and do not have any match at all to the row values. The more decoys there are, the harder it will naturally be to find the best match.
In this particular matching case, the length of the strings are irrelevant, because we are expecting abbreviations that represent longer words, so the optimal weight for length is -0.3, which means we do not penalize strings which vary in length. We reduce the score in anticipation of these abbreviations, giving more room for partial word matches to supersede non-word matches that simply require less substitutions because the string is shorter.
The word weight is 1.0 while the phrase weight is only 0.5, which means that we penalize whole words missing from one string and value more the entire phrase being intact. This is useful because a lot of these strings have one word in common (the peril) where what really matters is whether or not the combination (region and peril) are maintained.
Finally, the min weight is optimized at 10 and the max weight at 1. What this means is that if the best of the two scores (value phrase and value words) isn't very good, the match is greatly penalized, but we don't greatly penalize the worst of the two scores. Essentially, this puts emphasis on requiring either the valueWord or valuePhrase to have a good score, but not both. A sort of "take what we can get" mentality.
It's really fascinating what the optimized value of these 5 weights say about the sort of fuzzy string matching taking place. For completely different practical cases of fuzzy string matching, these parameters are very different. I've used it for 3 separate applications so far.
While unused in the final optimization, a benchmarking sheet was established which matches columns to themselves for all perfect results down the diagonal, and lets the user change parameters to control the rate at which scores diverge from 0, and note innate similarities between search phrases (which could in theory be used to offset false positives in the results)
Further Applications
This solution has potential to be used anywhere where the user wishes to have a computer system identify a string in a set of strings where there is no perfect match. (Like an approximate match vlookup for strings).
So what you should take from this, is that you probably want to use a combination of high level heuristics (finding words from one phrase in the other phrase, length of both phrases, etc) along with the implementation of the Levenshtein distance algorithm. Because deciding which is the "best" match is a heuristic (fuzzy) determination - you'll have to come up with a set of weights for any metrics you come up with to determine similarity.
With the appropriate set of heuristics and weights, you'll have your comparison program quickly making the decisions that you would have made.
In python, Suppose you have loaded up the data in some variable train:
train = pandas.read_csv('file_name')
>>> train
train([[ 1., 2., 3.],
[ 5., 1., 2.]],)
I want to check what are the dimensions of the 'file_name'. I have stored the file in train
>>>train.shape
(2,3)
>>>train.shape[0] # will display number of rows
2
>>>train.shape[1] # will display number of columns
3
Toni
's answer is very useful, but I thought a quick start for total beginners to test coverage assessment (like I am).
As already mentioned, Visual Studio Professional and Community Editions do not have built-in test coverage support. However, it can be obtained quite easily. I will write step-by-step configuration for use with NUnit tests within Visual Studion 2015 Professional.
Install OpenCover NUGet component using NuGet interface
Get OpenCoverUI extension. This can be installed directly from Visual Studio by using Tools -> Extensions and Updates
Configure OpenCoverUI to use the appropriate executables, by accessing Tools -> Options -> OpenCover.UI Options -> General
NUnit Path: must point to the `nunit-console.exe file. This can be found only within NUnit 2.xx version, which can be downloaded from here.
OpenCover Path: this should point to the installed package, usually <solution path>\packages\OpenCover.4.6.519\tools\OpenCover.Console.exe
Install ReportGenerator NUGet package
Access OpenCover Test Explorer
from OpenCover menu. Try discovering tests from there. If it fails, check Output windows for more details.
Check OpenCover Results (within OpenCover menu) for more details. It will output details such as Code Coverage in a tree based view. You can also highlight code that is or is not covered (small icon in the top-left).
NOTE: as mentioned, OpenCoverUI does not support latest major version of NUnit (3.xx). However, if nothing specific to this version is used within tests, it will work with no problems, regardless of having installed NUnit 3.xx version.
This covers the quick start. As already mentioned in the comments, for more advanced configuration and automation check this article.
In VBA we can not use if jj = 5 or 6 then
we must use if jj = 5 or jj = 6 then
maybe this:
If inputWks.Range("d9") > 0 And (inputWks.Range("d11") = "Restricted_Expenditure" Or inputWks.Range("d11") = "Unrestricted_Expenditure") Then
I wrote a working CodePen example to demonstrate a great way of filtering numeric user input. The directive currently only allows positive integers, but the regex can easily be updated to support any desired numeric format.
My directive is easy to use:
<input type="text" ng-model="employee.age" valid-number />
The directive is very easy to understand:
var app = angular.module('myApp', []);
app.controller('MainCtrl', function($scope) {
});
app.directive('validNumber', function() {
return {
require: '?ngModel',
link: function(scope, element, attrs, ngModelCtrl) {
if(!ngModelCtrl) {
return;
}
ngModelCtrl.$parsers.push(function(val) {
if (angular.isUndefined(val)) {
var val = '';
}
var clean = val.replace( /[^0-9]+/g, '');
if (val !== clean) {
ngModelCtrl.$setViewValue(clean);
ngModelCtrl.$render();
}
return clean;
});
element.bind('keypress', function(event) {
if(event.keyCode === 32) {
event.preventDefault();
}
});
}
};
});
I want to emphasize that keeping model references out of the directive is important.
I hope you find this helpful.
Big thanks to Sean Christe and Chris Grimes for introducing me to the ngModelController
The concept of a HOME directory seems to be a bit vague when it comes to Windows. If the environment variables (HOMEDRIVE/HOMEPATH/USERPROFILE) aren't enough, you may have to resort to using native functions via JNI or JNA. SHGetFolderPath allows you to retrieve special folders, like My Documents (CSIDL_PERSONAL) or Local Settings\Application Data (CSIDL_LOCAL_APPDATA).
Sample JNA code:
public class PrintAppDataDir {
public static void main(String[] args) {
if (com.sun.jna.Platform.isWindows()) {
HWND hwndOwner = null;
int nFolder = Shell32.CSIDL_LOCAL_APPDATA;
HANDLE hToken = null;
int dwFlags = Shell32.SHGFP_TYPE_CURRENT;
char[] pszPath = new char[Shell32.MAX_PATH];
int hResult = Shell32.INSTANCE.SHGetFolderPath(hwndOwner, nFolder,
hToken, dwFlags, pszPath);
if (Shell32.S_OK == hResult) {
String path = new String(pszPath);
int len = path.indexOf('\0');
path = path.substring(0, len);
System.out.println(path);
} else {
System.err.println("Error: " + hResult);
}
}
}
private static Map<String, Object> OPTIONS = new HashMap<String, Object>();
static {
OPTIONS.put(Library.OPTION_TYPE_MAPPER, W32APITypeMapper.UNICODE);
OPTIONS.put(Library.OPTION_FUNCTION_MAPPER,
W32APIFunctionMapper.UNICODE);
}
static class HANDLE extends PointerType implements NativeMapped {
}
static class HWND extends HANDLE {
}
static interface Shell32 extends Library {
public static final int MAX_PATH = 260;
public static final int CSIDL_LOCAL_APPDATA = 0x001c;
public static final int SHGFP_TYPE_CURRENT = 0;
public static final int SHGFP_TYPE_DEFAULT = 1;
public static final int S_OK = 0;
static Shell32 INSTANCE = (Shell32) Native.loadLibrary("shell32",
Shell32.class, OPTIONS);
/**
* see http://msdn.microsoft.com/en-us/library/bb762181(VS.85).aspx
*
* HRESULT SHGetFolderPath( HWND hwndOwner, int nFolder, HANDLE hToken,
* DWORD dwFlags, LPTSTR pszPath);
*/
public int SHGetFolderPath(HWND hwndOwner, int nFolder, HANDLE hToken,
int dwFlags, char[] pszPath);
}
}
This answer will do what you need, although usually you don't add specific usernames to sudoers
. Instead, you have a group of sudoers and just add your user to that group when needed. This way you don't need to use visudo
more than once when giving sudo
permission to users.
If you're on Ubuntu, the group is most probably already set up and called admin
:
$ sudo cat /etc/sudoers
#
# This file MUST be edited with the 'visudo' command as root.
#
...
# Members of the admin group may gain root privileges
%admin ALL=(ALL) ALL
# Allow members of group sudo to execute any command
%sudo ALL=(ALL:ALL) ALL
# See sudoers(5) for more information on "#include" directives:
#includedir /etc/sudoers.d
On other distributions, like Arch and some others, it's usually called wheel
and you may need to set it up: Arch Wiki
To give users in the wheel group full root privileges when they precede a command with "sudo", uncomment the following line: %wheel ALL=(ALL) ALL
Also note that on most systems visudo
will read the EDITOR
environment variable or default to using vi
. So you can try to do EDITOR=vim visudo
to use vim
as the editor.
To add a user to the group you should run (as root):
# usermod -a -G groupname username
where groupname
is your group (say, admin
or wheel
) and username
is the username (say, john
).
I just had this same problem on Windows 7 64-bit. I ran console as administrator and deleted the .svn directory from the problem directory (got an error about logs or something, but ignored it). Then, in explorer, I deleted the problem directory which was no longer showing as under version control. Then, I ran an update and things proceeded as expected.
=$W$4<=TODAY()
Returns true for dates up to and including today, false otherwise.
using the top answer produces a warning about making changes to a copy of a df slice. Assuming that you have other columns, a better way to do this is to pass a dictionary:
df.fillna({'A': 'NA', 'B': 'NA'}, inplace=True)
You can implicitly convert between numerical types, even when that loses precision:
char c = i;
However, you might like to enable compiler warnings to avoid potentially lossy conversions like this. If you do, then use static_cast
for the conversion.
Of the other casts:
dynamic_cast
only works for pointers or references to polymorphic class types;const_cast
can't change types, only const
or volatile
qualifiers;reinterpret_cast
is for special circumstances, converting between pointers or references and completely unrelated types. Specifically, it won't do numeric conversions.static_cast
, const_cast
and reinterpret_cast
is needed to get the job done.As the other people already said, use CSS overflow
.
But if you still want the user to be able to scroll that content (without the scrollbar being visible) you have to use JavaScript.
Se my answer here for a solution: Hide scrollbar while still being able to scroll with mouse/keyboard
Try like this format and use "width" attribute to manage the image size, it is simple. JavaScript can be implemented in element too.
<button><img src=""></button>
_x000D_
You could also use a URI template. If you structured your request into a restful URL Spring could parse the provided value from the url.
HTML
<li>
<a id="byParameter"
class="textLink" href="<c:url value="/mapping/parameter/bar />">By path, method,and
presence of parameter</a>
</li>
Controller
@RequestMapping(value="/mapping/parameter/{foo}", method=RequestMethod.GET)
public @ResponseBody String byParameter(@PathVariable String foo) {
//Perform logic with foo
return "Mapped by path + method + presence of query parameter! (MappingController)";
}
Use return
operator:
function FUNCT {
if [ blah is false ]; then
return 1 # or return 0, or even you can omit the argument.
else
keep running the function
fi
}
You need a regular expression like "\\s+"
, which means: split whenever at least one whitespace is encountered. The full Java code is:
try {
String[] splitArray = input.split("\\s+");
} catch (PatternSyntaxException ex) {
//
}
public class MyException : Exception
{
public MyException() { }
public MyException(string msg) : base(msg) { }
public MyException(string msg, Exception inner) : base(msg, inner) { }
}
Here is the annotation based example:
@SpringBootApplication
@ImportResource({"classpath*:spring-config.xml"})
public class MainApplication {
public static void main(String[] args) {
SpringApplication.run(MainApplication.class, args);
}
}
Here's what's finally worked for me :
REVOKE ALL PRIVILEGES ON ALL TABLES IN SCHEMA myschem FROM user_mike;
REVOKE ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA myschem FROM user_mike;
REVOKE ALL PRIVILEGES ON ALL FUNCTIONS IN SCHEMA myschem FROM user_mike;
REVOKE ALL PRIVILEGES ON SCHEMA myschem FROM user_mike;
ALTER DEFAULT PRIVILEGES IN SCHEMA myschem REVOKE ALL ON SEQUENCES FROM user_mike;
ALTER DEFAULT PRIVILEGES IN SCHEMA myschem REVOKE ALL ON TABLES FROM user_mike;
ALTER DEFAULT PRIVILEGES IN SCHEMA myschem REVOKE ALL ON FUNCTIONS FROM user_mike;
REVOKE USAGE ON SCHEMA myschem FROM user_mike;
REASSIGN OWNED BY user_mike TO masteruser;
DROP USER user_mike ;
Instead of selecting all the columns in count count(*) you can limit count for one column count(UserName).
You can limit the whole search to one row by using Limit 0,1
SELECT COUNT(UserName)
FROM TableName
WHERE UserName = 'User' AND
Password = 'Pass'
LIMIT 0, 1
Checkout the files in https://github.com/PyCQA/pylint/tree/master/pylint/checkers. I haven't found a better way to obtain the error name from a message than either Ctrl + F-ing those files or using the GitHub search feature:
If the message is "No name ... in module ...", use the search:
No name %r in module %r repo:PyCQA/pylint/tree/master path:/pylint/checkers
Or, to get fewer results:
"No name %r in module %r" repo:PyCQA/pylint/tree/master path:/pylint/checkers
GitHub will show you:
"E0611": (
"No name %r in module %r",
"no-name-in-module",
"Used when a name cannot be found in a module.",
You can then do:
from collections import Sequence # pylint: disable=no-name-in-module
The solution would be to use sessionStorage
, FYI: https://developer.mozilla.org/en-US/docs/Web/API/Window/sessionStorage
I think the difference between the two boils down to access. Environment variables are accessible by any process and Java system properties are only accessible by the process they are added to.
Also as Bohemian stated, env variables are set in the OS (however they 'can' be set through Java) and system properties are passed as command line options or set via setProperty()
.
I have a full discussion of events and delegates in my events article. For the simplest kind of event, you can just declare a public event and the compiler will create both an event and a field to keep track of subscribers:
public event EventHandler Foo;
If you need more complicated subscription/unsubscription logic, you can do that explicitly:
public event EventHandler Foo
{
add
{
// Subscription logic here
}
remove
{
// Unsubscription logic here
}
}
I don't think you need to change the MaxPermSize to 1024m. This works for me:
-startup
plugins/org.eclipse.equinox.launcher_1.0.200.v20090520.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.0.200.v20090519
-product
org.eclipse.epp.package.jee.product
--launcher.XXMaxPermSize
256M
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xms256m
-Xmx1024m
-XX:PermSize=64m
-XX:MaxPermSize=128m
If you are using fedora then first install tkinter
sudo dnf install python3-tkinter
I don't think you need to import tkinter afterwards I also suggest you to use virtualenv
$ python3 -m venv myvenv
$ source myvenv/bin/activate
And add the necessary packages using pip
GroupBox
is better.But not only group box, even you can use Panels
(System.Windows.Forms.Panel
).
One possible solution would to use regex.
'phone' => 'required|regex:/(01)[0-9]{9}/'
This will check the input starts with 01 and is followed by 9 numbers. By using regex you don't need the numeric
or size
validation rules.
If you want to reuse this validation method else where, it would be a good idea to create your own validation rule for validating phone numbers.
In your AppServiceProvider
's boot
method:
Validator::extend('phone_number', function($attribute, $value, $parameters)
{
return substr($value, 0, 2) == '01';
});
This will allow you to use the phone_number
validation rule anywhere in your application, so your form validation could be:
'phone' => 'required|numeric|phone_number|size:11'
In your validator extension you could also check if the $value
is numeric and 11 characters long.
Instead of using the doc's command (conda create -n tensorflow pip python=2.7 # or python=3.3, etc.
) which wanted to install python2.7 in the conda environment, and kept erroring out saying the module can't be found when following the installation validation steps, I used conda create -n tensorflow pip python=3
to make sure python3 was installed in the environment.
Doing this, I only had to type python
instead of python3
when validating the installation and the error went away.
It is very simple
float moveWater = Mathf.PingPong(theTime * speed, 100) * .015f;
int m = (int)(moveWater);
float decimalPart= moveWater -m ;
Debug.Log(decimalPart);
Make the batch file save the credentials of the actual administrator account by using the /savecred
switch. This will prompt for credentials the first time and then store the encrypted password in credential manager. Then for all subsequent times the batch runs it will run as the full admin but not prompt for credentials because they are stored encrypted in credential manager and the end user is unable to get the password. The following should open an elevated CMD with full administrator privileges and will only prompt for password the first time:
START c:\Windows\System32\runas.exe /user:Administrator /savecred cmd.exe
just use this:
int index = 2;
boolean option3Checked = radioGroup.getCheckedRadioButtonId() == radioGroup.getChildAt(2).getId();
I explain this to users by comparing Perforce changelists to a stack (from data structures).
Backing out removes one item from anywhere in the stack.
Rolling back removes n items from the top of the stack.
My simple answer.
def get_files_tree(src="src_path"):
req_files = []
for r, d, files in os.walk(src):
for file in files:
src_file = os.path.join(r, file)
src_file = src_file.replace('\\', '/')
if src_file.endswith('.db'):
continue
req_files.append(src_file)
return req_files
def copy_tree_force(src_path="",dest_path=""):
"""
make sure that all the paths has correct slash characters.
"""
for cf in get_files_tree(src=src_path):
df= cf.replace(src_path, dest_path)
if not os.path.exists(os.path.dirname(df)):
os.makedirs(os.path.dirname(df))
shutil.copy2(cf, df)
If you are using gvim, you could just hit Ctrl + Home to go the first line. Similarly, Ctrl + End goes to the last line.
UPDATE ANDROID STUDIO 3.4
Some points:
X
or X&
or X const
&
) the compiler will generate the
default copy-constructor. T const &
or T
or T&
then the
compiler will nevertheless generate a
default non-templated
copy-constructor, even though you may think that it shouldn't because when T = X the declaration matches the copy-constructor declaration.HTH
Or Use range
(python 3):
l=[i for i in range(len(lst)) if lst[i]=='something...']
For (python 2):
l=[i for i in xrange(len(lst)) if lst[i]=='something...']
And then (both cases):
print(l)
Is as expected.
Perhaps this is what you are looking for:
import os
os.chdir(default_path)
To avoid hyphenation in already hyphenated word I used non-breaking space ~
in combination with backward space \!
. For example, command
3~\!\!\!\!-~\!\!\!D
used in the text, suppress hyphenation in word 3-D. Probably not the best solution, but it worked for me!
You need to define your problem more clearly. You could just take the number of milliseconds between the two Date
objects and divide by the number of milliseconds in 24 hours, for example... but:
Date
is always in UTCmysqli_error()
As in:
$sql = "Your SQL statement here";
$result = mysqli_query($conn, $sql) or trigger_error("Query Failed! SQL: $sql - Error: ".mysqli_error($conn), E_USER_ERROR);
Trigger error is better than die because you can use it for development AND production, it's the permanent solution.
an Eclipse Plugin for automatically adding Javadoc and file headers to your source code. It optionally generates initial comments from element name by using Velocity templates for Javadoc and file headers...
I am having the same issue, I overcome using
npm config set proxy http://my-proxy.com:1080
npm config set https-proxy http://my-proxy.com:1080
Additionally info at node-doc
You can simplify things quite a bit by creating a class that derives from WebClient, overriding its GetWebRequest method and setting a CookieContainer object on it. If you always set the same CookieContainer instance, then cookie management will be handled automatically for you.
But the only way to get at the HttpWebRequest before it is sent is to inherit from WebClient and override that method.
public class CookieAwareWebClient : WebClient
{
private CookieContainer cookie = new CookieContainer();
protected override WebRequest GetWebRequest(Uri address)
{
WebRequest request = base.GetWebRequest(address);
if (request is HttpWebRequest)
{
(request as HttpWebRequest).CookieContainer = cookie;
}
return request;
}
}
var client = new CookieAwareWebClient();
client.BaseAddress = @"https://www.site.com/any/base/url/";
var loginData = new NameValueCollection();
loginData.Add("login", "YourLogin");
loginData.Add("password", "YourPassword");
client.UploadValues("login.php", "POST", loginData);
//Now you are logged in and can request pages
string htmlSource = client.DownloadString("index.php");
In my case, I was looping through a series of objects from an XML file, but some of the instances apparently were not objects which was causing the error. Checking if the object was empty before processing it fixed the problem.
In other words, without checking if the object was empty, the script would error out on any empty object with the error as given below.
Trying to get property of non-object
For Example:
if (!empty($this->xml_data->thing1->thing2))
{
foreach ($this->xml_data->thing1->thing2 as $thing)
{
}
}
The ES6 way of require is import
. You can export
your class and import it somewhere else using import { ClassName } from 'path/to/ClassName'
syntax.
import fs from 'fs';
export default class Animal {
constructor(name){
this.name = name ;
}
print(){
console.log('Name is :'+ this.name);
}
}
import Animal from 'path/to/Animal.js';
DataContractAttribute
Class is in the System.Runtime.Serialization
namespace.
You should add a reference to System.Runtime.Serialization.dll
. That assembly isn't referenced by default though. To add the reference to your project you have to go to References -> Add Reference in the Solution Explorer and add an assembly reference manually.
After upgrade my computer with pip today, and check the other answers here, I can tell you that it could be ANYTHING. You should check error by error, looking for what's the specific library that you need. In my case, these were the libraries that I had to install:
$ sudo apt-get install libssl-dev
$ sudo apt-get install libffi-dev
$ sudo apt-get install libjpeg-dev
$ sudo apt-get install libvirt-dev
$ sudo apt-get install libsqlite3-dev
$ sudo apt-get install libcurl4-openssl-dev
$ sudo apt-get install libxml2-dev libxslt1-dev python-dev
HTH
Ref: dock.docker.com
This topic provides basic information about deploying and configuring a registry
Before you can deploy a registry, you need to install Docker on the host.
Use a command like the following to start the registry container:
start_registry.sh
#!/bin/bash
docker run -d \
-p 5000:5000 \
--restart=always \
--name registry \
-v /data/registry:/var/lib/registry \
registry:2
Pull the ubuntu:16.04
image from Docker Hub.
$ docker pull ubuntu:16.04
Tag the image as localhost:5000/my-ubuntu
. This creates an additional tag for the existing image. When the first part of the tag is a hostname and port, Docker interprets this as the location of a registry, when pushing.
$ docker tag ubuntu:16.04 localhost:5000/my-ubuntu
Push the image to the local registry running at localhost:5000
:
$ docker push localhost:5000/my-ubuntu
Remove the locally-cached images. This does not remove the localhost:5000/my-ubuntu
image from your registry.
$ docker image remove ubuntu:16.04
$ docker image remove localhost:5000/my-ubuntu
Pull the localhost:5000/my-ubuntu
image from your local registry.
$ docker pull localhost:5000/my-ubuntu
According to docs.docker.com, this is very insecure and is not recommended.
Edit the daemon.json
file, whose default location is /etc/docker/daemon.json
on Linux or C:\ProgramData\docker\config\daemon.json
on Windows Server. If you use Docker for Mac
or Docker for Windows
, click Docker icon -> Preferences -> Daemon
, add in the insecure registry
.
If the daemon.json
file does not exist, create it. Assuming there are no other settings in the file, it should have the following contents:
{
"insecure-registries" : ["myregistrydomain.com:5000"]
}
With insecure registries enabled, Docker goes through the following steps:
Restart Docker for the changes to take effect.
This will never work, at least not under Windows Vista or later. The key problem is that you're trying to execute this from within a Windows Service, rather than a standard Windows application. The code you've shown will work perfectly in a Windows Forms, WPF, or Console application, but it won't work at all in a Windows Service.
Windows Services cannot start additional applications because they are not running in the context of any particular user. Unlike regular Windows applications, services are now run in an isolated session and are prohibited from interacting with a user or the desktop. This leaves no place for the application to be run.
More information is available in the answers to these related questions:
The best solution to your problem, as you've probably figured out by now, is to create a standard Windows application instead of a service. These are designed to be run by a particular user and are associated with that user's desktop. This way, you can run additional applications whenever you want, using the code that you've already shown.
Another possible solution, assuming that your Console application does not require an interface or output of any sort, is to instruct the process not to create a window. This will prevent Windows from blocking the creation of your process, because it will no longer request that a Console window be created. You can find the relevant code in this answer to a related question.
I use RegexBuddy for debbuging my regexes it has almost all languages very usefull. Than copy/paste for the targeted language. Terrific tool and not very expensive.
So I copy/pasted your regex and your issue is that [,] are special characters in regex, so you need to escape them. So the regex should be : /!@#$^&%*()+=-[\x5B\x5D]\/{}|:<>?,./im
"Edit -> EOL Conversion". You can convert to Windows/Linux/Mac EOL there. The current format is displayed in the status bar.
You could use a for
loop to print the []Project
as shown in @VonC excellent answer.
package main
import "fmt"
type Project struct{ name string }
func main() {
projects := []Project{{"p1"}, {"p2"}}
for i := range projects {
p := projects[i]
fmt.Println(p.name) //p1, p2
}
}
My application is using Mura CMS and I faced this issue. However the solution was the password mismatch between my mysql local server and the password in the config files. As soon as I synched them it worked.
As pointed by others, you were resetting the cipherText in the iteration of the for loop. Placing cipherText before the start of the for loop will solve your problem.
Additionally, there is an alternate approach to solving this problem using Python's Standard library. The Python Standard Library defines a function maketrans() and a method translate that operates on strings.
The function maketrans() creates translation tables that can be used with the translate method to change one set of characters to another more efficiently. (Quoted from The Python Standard Library by Example).
import string
def caesar(plaintext, shift):
shift %= 26 # Values greater than 26 will wrap around
alphabet_lower = string.ascii_lowercase
alphabet_upper = string.ascii_uppercase
shifted_alphabet_lower = alphabet_lower[shift:] + alphabet_lower[:shift]
shifted_alphabet_upper = alphabet_upper[shift:] + alphabet_upper[:shift]
alphabet = alphabet_lower + alphabet_upper
shifted_alphabet = shifted_alphabet_lower + shifted_alphabet_upper
table = string.maketrans(alphabet, shifted_alphabet)
return plaintext.translate(table)
I was getting this error message in my Unit tests with Jasmine. I added ngDefaultControl attribute to the custom element(in my case it was an angular material slide toggle) and this resolves the error.
<mat-slide-toggle formControlName="extraCheese">
Extra Cheese
</mat-slide-toggle>
Change the above element to include ngDefaultControl atttribute
<mat-slide-toggle ngDefaultControl formControlName="extraCheese">
Extra Cheese
</mat-slide-toggle>
Here is an alternative way to do that.
const conditionsArray = [
condition1,
condition2,
condition3,
]
if (conditionsArray.indexOf(false) === -1) {
"do somthing"
}
Or ES6
if (!conditionsArray.includes(false)) {
"do somthing"
}
What you can do is
RelationActiveEnum ae = Enum.valueOf(RelationActiveEnum.class,
RelationActiveEnum.ACTIVE.name();
or
RelationActiveEnum ae = RelationActiveEnum.valueOf(
RelationActiveEnum.ACTIVE.name();
or
// not recommended as the ordinal might not match the value
RelationActiveEnum ae = RelationActiveEnum.values()[
RelationActiveEnum.ACTIVE.value];
By if you want to lookup by a field of an enum you need to construct a collection such as a List, an array or a Map.
public enum RelationActiveEnum {
Invited(0),
Active(1),
Suspended(2);
private final int code;
private RelationActiveEnum(final int code) {
this.code = code;
}
private static final Map<Integer, RelationActiveEnum> BY_CODE_MAP = new LinkedHashMap<>();
static {
for (RelationActiveEnum rae : RelationActiveEnum.values()) {
BY_CODE_MAP.put(rae.code, rae);
}
}
public static RelationActiveEnum forCode(int code) {
return BY_CODE_MAP.get(code);
}
}
allows you to write
String name = RelationActiveEnum.forCode(RelationActiveEnum.ACTIVE.code).name();
Here's how you convert numbers to strings, and join strings to other things (it's weird):
>> ['the number is ' num2str(15) '.']
ans =
the number is 15.
If you were originally looking for the answer to this question (int value in sorted (Ascending) int array), then you can use the following code that performs a binary search (fastest result):
static inline bool exists(int ints[], int size, int k) // array, array's size, searched value
{
if (size <= 0) // check that array size is not null or negative
return false;
// sort(ints, ints + size); // uncomment this line if array wasn't previously sorted
return (std::binary_search(ints, ints + size, k));
}
edit: Also works for unsorted int array if uncommenting sort.
When multiple threads need to check and change the boolean. For example:
if (!initialized) {
initialize();
initialized = true;
}
This is not thread-safe. You can fix it by using AtomicBoolean
:
if (atomicInitialized.compareAndSet(false, true)) {
initialize();
}
Call second ajax from 'complete'
Here is the example
var dt='';
$.ajax({
type: "post",
url: "ajax/example.php",
data: 'page='+btn_page,
success: function(data){
dt=data;
/*Do something*/
},
complete:function(){
$.ajax({
var a=dt; // This line shows error.
type: "post",
url: "example.php",
data: 'page='+a,
success: function(data){
/*do some thing in second function*/
},
});
}
});
This is OK too; For example:
==> In "NumberController" file:
public ActionResult Create([Bind(Include = "NumberId,Number1,Number2,OperatorId")] Number number)
{
if (ModelState.IsValid)
{
...
...
return RedirectToAction("Index");
}
ViewBag.OperatorId = new SelectList(db.Operators, "OperatorId",
"OperatorSign", number.OperatorId);
return View();
}
==> In View file (Create.cshtml):
<div class="form-group">
@Html.LabelFor(model => model.Number1, htmlAttributes: new { @class =
"control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Number1, new { htmlAttributes = new {
@class = "form-control" } })
@Html.ValidationMessageFor(model => model.Number1, "", new { @class =
"text-danger" })
</div>
</div>
Now if we remove this statement:
ViewBag.OperatorId = new SelectList(db.Operators, "OperatorId", "OperatorSign", number.OperatorId);
from back of the following statement (in our controller) :
return View();
we will see this error:
There is no ViewData item of type 'IEnumerable' that has the key 'OperatorId'.
* So be sure of the existing of these statements. *
With the new ValueTuple
from C# 7 (VS 2017 and above), there is a new solution:
List<(int,string)> mylist= new List<(int,string)>();
Which creates a list of ValueTuple type. If you're targeting .Net Framework 4.7+ or .Net Core, it's native, otherwise you have to get the ValueTuple package from nuget.
It's a struct opposing to Tuple
, which is a class. It also has the advantage over the Tuple
class that you could create a named tuple, like this:
var mylist = new List<(int myInt, string myString)>();
That way you can access like mylist[0].myInt
and mylist[0].myString
The reverse() is used to adhere the django DRY principle i.e if you change the url in future then you can reference that url using reverse(urlname).
You have enabled CORS and enabled Access-Control-Allow-Origin : *
in the server.If still you get GET
method working and POST
method is not working then it might be because of the problem of Content-Type
and data
problem.
First AngularJS transmits data using Content-Type: application/json
which is not serialized natively by some of the web servers (notably PHP). For them we have to transmit the data as Content-Type: x-www-form-urlencoded
Example :-
$scope.formLoginPost = function () {
$http({
url: url,
method: "POST",
data: $.param({ 'username': $scope.username, 'Password': $scope.Password }),
headers: { 'Content-Type': 'application/x-www-form-urlencoded' }
}).then(function (response) {
// success
console.log('success');
console.log("then : " + JSON.stringify(response));
}, function (response) { // optional
// failed
console.log('failed');
console.log(JSON.stringify(response));
});
};
Note : I am using $.params
to serialize the data to use Content-Type: x-www-form-urlencoded
. Alternatively you can use the following javascript function
function params(obj){
var str = "";
for (var key in obj) {
if (str != "") {
str += "&";
}
str += key + "=" + encodeURIComponent(obj[key]);
}
return str;
}
and use params({ 'username': $scope.username, 'Password': $scope.Password })
to serialize it as the Content-Type: x-www-form-urlencoded
requests only gets the POST data in username=john&Password=12345
form.
public boolean onKeyDown(int keycode, KeyEvent event) {
if (keycode == KeyEvent.KEYCODE_BACK) {
moveTaskToBack(true);
}
return super.onKeyDown(keycode, event);
}
My app closed with above code.
The best solution is to use async Task
. You should avoid async void
for several reasons, one of which is composability.
If the method cannot be made to return Task
(e.g., it's an event handler), then you can use SemaphoreSlim
to have the method signal when it is about to exit. Consider doing this in a finally
block.
The relational algebra allows interchangeability of the predicates in the WHERE
clause and the INNER JOIN
, so even INNER JOIN
queries with WHERE
clauses can have the predicates rearrranged by the optimizer so that they may already be excluded during the JOIN
process.
I recommend you write the queries in the most readable way possible.
Sometimes this includes making the INNER JOIN
relatively "incomplete" and putting some of the criteria in the WHERE
simply to make the lists of filtering criteria more easily maintainable.
For example, instead of:
SELECT *
FROM Customers c
INNER JOIN CustomerAccounts ca
ON ca.CustomerID = c.CustomerID
AND c.State = 'NY'
INNER JOIN Accounts a
ON ca.AccountID = a.AccountID
AND a.Status = 1
Write:
SELECT *
FROM Customers c
INNER JOIN CustomerAccounts ca
ON ca.CustomerID = c.CustomerID
INNER JOIN Accounts a
ON ca.AccountID = a.AccountID
WHERE c.State = 'NY'
AND a.Status = 1
But it depends, of course.
There is a numpy built-in function to help with that.
import numpy as np
>>> a = np.array([1, 2, 3, 4, 5, 6, 7, 8, 9])
>>> b = np.array([3,4,7])
>>> c = np.setdiff1d(a,b)
>>> c
array([1, 2, 5, 6, 8, 9])
Good to see someone's chimed in about Lucene - because I've no idea about that.
Sphinx, on the other hand, I know quite well, so let's see if I can be of some help.
I've no idea how applicable to your situation this is, but Evan Weaver compared a few of the common Rails search options (Sphinx, Ferret (a port of Lucene for Ruby) and Solr), running some benchmarks. Could be useful, I guess.
I've not plumbed the depths of MySQL's full-text search, but I know it doesn't compete speed-wise nor feature-wise with Sphinx, Lucene or Solr.