No router + no screen + regular Ethernet cable + RPI 2 + Raspbian Lite 2018-11-13 + Ubuntu 18.10
First we must enable the SSH server on the Pi, which is disabled by default for security.
If you already have a shell on the Pi through a non-SSH method such as screen + keyboard or UART (see below), just run:
sudo systemctl enable ssh
sudo service sshd start
as explained at: https://raspberrypi.stackexchange.com/questions/58478/ssh-not-working-with-fresh-install This persists across boots.
Otherwise, insert he SD card on your host, and create a magic empty file named ssh
file in the boot/
partition.
On Ubuntu hosts, it gets mounted automatically and you can do just:
sudo touch /media/$USER/boot/ssh
which you can confirm with:
lsblk
which contains:
mmcblk0 179:0 0 14.4G 0 disk
+-mmcblk0p1 179:1 0 43.9M 0 part /media/ciro/boot
+-mmcblk0p2 179:2 0 14.4G 0 part /media/ciro/rootfs
If you don't enable the SSHD daemon on the Pi then SSH connection will fail with:
ssh: connect to host 10.42.0.160 port 22: Connection refused
when we try it later on.
After enabling the SSH server
Next, boot the Pi, and link an Ethernet cable from your laptop directly to the Pi:
On Ubuntu 17.04 to work around this bug as mentioned on this answer you first need:
sudo apt-get install dnsmasq-base
On the host, open the network manager:
nm-connection-editor
And go:
+
sign (Add a new connection)Find the IP of the Pi on host:
cat /var/lib/misc/dnsmasq.leases
outputs something like:
1532204957 b8:27:eb:0c:1f:69 10.42.0.160 raspberrypi 01:b8:27:eb:0c:1f:69
10.42.0.160
is the IP, then as usual:
ssh [email protected]
I also have the following in my .bashrc
:
piip() ( cat /var/lib/misc/dnsmasq.leases | cut -d ' ' -f 3; )
pissh() ( sshpass -p raspberry ssh "pi@$(piip)"; )
From inside the Pi, notice that it can access the internet normally through your host's other interfaces:
ping google.com
For example on my laptop, the Pi takes up the Ethernet, but the host is also connected to the internet through WiFi.
The crossover cable is not required if the host network card supports Auto MDI-X. This is the case for most recent hardware, including for example the 2012 Lenovo T430 I tested with, which has an "Intel® 82579LM Gigabit Network Connection" which documents support for Auto MDI-X.
Now you can also:
UART serial USB converter
This is an alternative to SSH if you just want to get a shell on the Pi: https://en.wikipedia.org/wiki/Serial_port
This does not use SSH or networking itself, but rather the older, simpler, more direct, more reliable, lower bandwidth, lower distance serial interface. The Pi won't have access to the Internet with this method.
Desktop computers still have a serial port which you can connect directly wire to wire with the Pi, but these are hidden in most laptops, and so we need to buy a cheap USB adapter. Here I've used: https://www.amazon.co.uk/gp/product/B072K3Z3TL See also: https://unix.stackexchange.com/questions/307390/what-is-the-difference-between-ttys0-ttyusb0-and-ttyama0-in-linux/367882#367882
First plug the SD card on the host, and edit the config.txt
file present in the first partition to add:
enable_uart=1
as explained at: https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=141195
This first partition contains the bootloader, its configuration files and the (Linux / your) kernel, config.txt
being one of them. The second partition contains the actual Linux root filesystem.
Now connect your computer to the Pi as:
You only need to attach 3 cables:
This is also documented at: https://www.raspberrypi.org/documentation/usage/gpio/README.md
Be careful not to link the Ground to the 5V, I've already burned 2 UART to USB chips and a RPI UART by doing that!
You don't need to connect the 5V to the 5V at all. I think you can power your Pi like that, but I've read that this is a bad idea, just use the usual USB power source.
Finally, plug the USB side of the connector to your host computer, and get a shell with:
sudo apt install screen
sudo usermod -a -G dialout $USER
screen /dev/ttyUSB0 115200
Exit with Ctrl-A \
.
Here is a video by Adafruit showing it: https://www.youtube.com/watch?v=zUBPeoLW16Q
See also
Similar question on RPI SE: https://raspberrypi.stackexchange.com/questions/3867/ssh-to-rpi-without-a-network-connection
The post needs an update after the links
option is deprecated.
Basically, links
is no longer needed because its main purpose, making container reachable by another by adding environment variable, is included implicitly with network
. When containers are placed in the same network, they are reachable by each other using their container name and other alias as host.
For docker run
, --link
is also deprecated and should be replaced by a custom network.
docker network create mynet
docker run -d --net mynet --name container1 my_image
docker run -it --net mynet --name container1 another_image
depends_on
expresses start order (and implicitly image pulling order), which was a good side effect of links
.
You can list all the available timezones with pytz.all_timezones
:
In [40]: import pytz
In [41]: pytz.all_timezones
Out[42]:
['Africa/Abidjan',
'Africa/Accra',
'Africa/Addis_Ababa',
...]
There is also pytz.common_timezones
:
In [45]: len(pytz.common_timezones)
Out[45]: 403
In [46]: len(pytz.all_timezones)
Out[46]: 563
Use 'raw_input' for input from a console/terminal.
if you just want a command line argument like a file name or something e.g.
$ python my_prog.py file_name.txt
then you can use sys.argv...
import sys
print sys.argv
sys.argv is a list where 0 is the program name, so in the above example sys.argv[1] would be "file_name.txt"
If you want to have full on command line options use the optparse module.
Pev
Your example code gets the row number of the last non-blank cell in the current column, and can be rewritten as follows:
Dim lastRow As Long
lastRow = Sheet1.Cells(Rows.Count, 1).End(xlUp).Row
MsgBox lastRow
It is then easy to see that the equivalent code to get the column number of the last non-blank cell in the current row is:
Dim lastColumn As Long
lastColumn = Sheet1.Cells(1, Columns.Count).End(xlToLeft).Column
MsgBox lastColumn
This may also be of use to you:
With Sheet1.UsedRange
MsgBox .Rows.Count & " rows and " & .Columns.Count & " columns"
End With
but be aware that if column A and/or row 1 are blank, then this will not yield the same result as the other examples above. For more, read up on the UsedRange
property.
You can do
array = ['1', '2', '3']
As others have noted, you can also initialize an array with %w notation like so:
array = %w(1 2 3)
or
array = %w[1 2 3]
Please note that in both cases each element is a string, rather than an integer. So if you want an array whose elements are integers, you should not wrap each element with apostrophes:
array_of_integers = [1, 2, 3]
Also, you don't need to put comma in between the elements (which is necessary when creating an array without this %w notation). If you do this (which I often did by mistake), as in:
wrong_array = %w(1, 2, 3)
its elements will be three strings ---- "1,", "2,", "3". So if you do:
puts wrong_array
the output will be:
1,
2,
3
=>nil
which is not what we want here.
Hope this helps to clarify the point!
The file location/path has to relative to your classpath locations. If resources directory is in your classpath you just need "app-context.xml" as file location.
In addition to other answers need to add that parameters not only helps prevent sql injection but can improve performance of queries. Sql server caching parameterized query plans and reuse them on repeated queries execution. If you not parameterized your query then sql server would compile new plan on each query(with some exclusion) execution if text of query would differ.
In summary of the previous comments:
function() {
alert("hello");
}();
when not assigned to a variable, yields a syntax error. The code is parsed as a function statement (or definition), which renders the closing parentheses syntactically incorrect. Adding parentheses around the function portion tells the interpreter (and programmer) that this is a function expression (or invocation), as in
(function() {
alert("hello");
})();
This is a self-invoking function, meaning it is created anonymously and runs immediately because the invocation happens in the same line where it is declared. This self-invoking function is indicated with the familiar syntax to call a no-argument function, plus added parentheses around the name of the function: (myFunction)();
.
What is the difference
1.
public interface MyGlobalConstants {
public static final int TIMEOUT_IN_SECS = 25;
}
2.
public class MyGlobalConstants {
private MyGlobalConstants () {} // Prevents instantiation
public static final int TIMEOUT_IN_SECS = 25;
}
and using
MyGlobalConstants.TIMEOUT_IN_SECS
wherever we need this constant. I think both are same.
var datetime = new Date();_x000D_
console.log(datetime.toISOString().slice(0,10));
_x000D_
Using the accepted answer you have to access each record by using Customers[i].customer
, and you need an extra CustomerJson
class, which is a little annoying. If you don't want to do that, you can use the following:
public class CustomerList
{
[JsonConverter(typeof(MyListConverter))]
public List<Customer> customer { get; set; }
}
Note that I'm using a List<>
, not an Array. Now create the following class:
class MyListConverter : JsonConverter
{
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
var token = JToken.Load(reader);
var list = Activator.CreateInstance(objectType) as System.Collections.IList;
var itemType = objectType.GenericTypeArguments[0];
foreach (var child in token.Values())
{
var childToken = child.Children().First();
var newObject = Activator.CreateInstance(itemType);
serializer.Populate(childToken.CreateReader(), newObject);
list.Add(newObject);
}
return list;
}
public override bool CanConvert(Type objectType)
{
return objectType.IsGenericType && (objectType.GetGenericTypeDefinition() == typeof(List<>));
}
public override bool CanWrite => false;
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer) => throw new NotImplementedException();
}
The solution to this problem is very simple. Double click on your tomcat server. It will open the server configuration. Under server options check ‘Publish module contents to separate XML files’ checkbox. Restart your server. This time your page will come without any issues.
Android Studio has a pre-defined code, you can directly use it. android:popupBackground="HEX COLOR CODE"
Let's say you have three classes: Enemy1, Enemy2, Enemy3. This is how you instantiate them directly:
Enemy1()
Enemy2()
Enemy3()
but this will also work:
x = Enemy1
x()
x = Enemy2
x()
x = Enemy3
x()
Is this what you meant?
The following should do what you want.
@keyframes marquee {
from { text-indent: 100% }
to { text-indent: -100% }
}
This is a place in which C++ has a strange rule. Before being able to compile a call to a function the compiler must know the function name, return value and all parameters.
This can be done by adding a "prototype". In your case this simply means adding before main
the following line:
int writeFile();
this tells the compiler that there exist a function named writeFile
that will be defined somewhere, that returns an int
and that accepts no parameters.
Alternatively you can define first the function writeFile
and then main
because in this case when the compiler gets to main
already knows your function.
Note that this requirement of knowing in advance the functions being called is not always applied. For example for class members defined inline it's not required...
struct Foo {
void bar() {
if (baz() != 99) {
std::cout << "Hey!";
}
}
int baz() {
return 42;
}
};
In this case the compiler has no problem analyzing the definition of bar
even if it depends on a function baz
that is declared later in the source code.
\r used for carriage return. (ASCII value is 13) \n used for new line. (ASCII value is 10)
checked
attribute is a boolean value so "checked"
value of other "string"
except boolean false
converts to true
.
Any string value will be true. Also presence of attribute make it true:
<input type="checkbox" checked>
You can make it uncheked only making boolean change in DOM using JS.
So the answer is: they are equal.
There is only one public signature allowed for each controller method. If you try to overload it, it will compile, but you're getting the run-time error you've experienced.
If you're not willing to use different verbs (like the [HttpGet]
and [HttpPost]
attributes) to differentiate overloaded methods (which will work), or change the routing, then what remains is that you can either provide another method with a different name, or you can dispatch inside of the existing method. Here's how I did it:
I once came into a situation where I had to maintain backwards compatibility. The original method expected two parameters, but the new one had only one. Overloading the way I expected did not work because MVC didn't find the entry point any more.
To solve that, I did the following:
Created one new public method which contained "just" 2 string parameters. That one acted as a dispatcher, i.e.:
public ActionResult DoSomething(string param1, string param2)
{
if (string.IsNullOrEmpty(param2))
{
return DoSomething(ProductName: param1);
}
else
{
int oldId = int.Parse(param1);
return DoSomething(OldParam: param1, OldId: oldId);
}
}
private ActionResult DoSomething(string OldParam, int OldId)
{
// some code here
return Json(result);
}
private ActionResult DoSomething(string ProductName)
{
// some code here
return Json(result);
}
Of course, this is a hack and should be refactored later. But for the time being, it worked for me.
You can also create a dispatcher like:
public ActionResult DoSomething(string action, string param1, string param2)
{
switch (action)
{
case "update":
return UpdateAction(param1, param2);
case "remove":
return DeleteAction(param1);
}
}
You can see, that UpdateAction needs 2 parameters, while DeleteAction just needs one.
Since Kevin's answer is not complete.
This is more correct answer if you use RecyclerAdapter
's notifyItemInserted
and notifyItemRemoved
to update dataset.
See the Kotlin version another user added below.
Java:
mAdapter.registerAdapterDataObserver(new RecyclerView.AdapterDataObserver() {
@Override
public void onChanged() {
super.onChanged();
checkEmpty();
}
@Override
public void onItemRangeInserted(int positionStart, int itemCount) {
super.onItemRangeInserted(positionStart, itemCount);
checkEmpty();
}
@Override
public void onItemRangeRemoved(int positionStart, int itemCount) {
super.onItemRangeRemoved(positionStart, itemCount);
checkEmpty();
}
void checkEmpty() {
mEmptyView.setVisibility(mAdapter.getItemCount() == 0 ? View.VISIBLE : View.GONE);
}
});
Kotlin
adapter.registerAdapterDataObserver(object : RecyclerView.AdapterDataObserver() {
override fun onChanged() {
super.onChanged()
checkEmpty()
}
override fun onItemRangeInserted(positionStart: Int, itemCount: Int) {
super.onItemRangeInserted(positionStart, itemCount)
checkEmpty()
}
override fun onItemRangeRemoved(positionStart: Int, itemCount: Int) {
super.onItemRangeRemoved(positionStart, itemCount)
checkEmpty()
}
fun checkEmpty() {
empty_view.visibility = (if (adapter.itemCount == 0) View.VISIBLE else View.GONE)
}
})
"command + L" for MAC OS X.
"control + L" for Ubuntu
Clears the last line on the interactive session
You cannot access a local directory from pl/sql. If you use bfile, you will setup a directory (create directory) on the server where Oracle is running where you will need to put your images.
If you want to insert a handful of images from your local machine, you'll need a client side app to do this. You can write your own, but I typically use Toad for this. In schema browser, click onto the table. Click the data tab, and hit + sign to add a row. Double click the BLOB column, and a wizard opens. The far left icon will load an image into the blob:
SQL Developer has a similar feature. See the "Load" link below:
If you need to pull images over the wire, you can do it using pl/sql, but its not straight forward. First, you'll need to setup ACL list access (for security reasons) to allow a user to pull over the wire. See this article for more on ACL setup.
Assuming ACL is complete, you'd pull the image like this:
declare
l_url varchar2(4000) := 'http://www.oracleimg.com/us/assets/12_c_navbnr.jpg';
l_http_request UTL_HTTP.req;
l_http_response UTL_HTTP.resp;
l_raw RAW(2000);
l_blob BLOB;
begin
-- Important: setup ACL access list first!
DBMS_LOB.createtemporary(l_blob, FALSE);
l_http_request := UTL_HTTP.begin_request(l_url);
l_http_response := UTL_HTTP.get_response(l_http_request);
-- Copy the response into the BLOB.
BEGIN
LOOP
UTL_HTTP.read_raw(l_http_response, l_raw, 2000);
DBMS_LOB.writeappend (l_blob, UTL_RAW.length(l_raw), l_raw);
END LOOP;
EXCEPTION
WHEN UTL_HTTP.end_of_body THEN
UTL_HTTP.end_response(l_http_response);
END;
insert into my_pics (pic_id, pic) values (102, l_blob);
commit;
DBMS_LOB.freetemporary(l_blob);
end;
Hope that helps.
Structure your code so that all your temporary objects are located inside closures instead of global namespace / global object properties and go out of scope when you've done with them. GC will take care of the rest.
To exclude all type of stop-words including nltk stop-words, you could do something like this:
from stop_words import get_stop_words
from nltk.corpus import stopwords
stop_words = list(get_stop_words('en')) #About 900 stopwords
nltk_words = list(stopwords.words('english')) #About 150 stopwords
stop_words.extend(nltk_words)
output = [w for w in word_list if not w in stop_words]
If you're having a problem converting a query string to an array because of encoded ampersands
&
then be sure to use html_entity_decode
Example:
// Input string //
$input = 'pg_id=2&parent_id=2&document&video';
// Parse //
parse_str(html_entity_decode($input), $out);
// Output of $out //
array(
'pg_id' => 2,
'parent_id' => 2,
'document' => ,
'video' =>
)
You want an independent for loop for all the rows in grid view, then refer the below link
http://nikhilsreeni.wordpress.com/asp-net/checkbox/
Select all checkbox in Gridview
CheckBox cb = default(CheckBox);
for (int i = 0; i <= grdforumcomments.Rows.Count – 1; i++)
{
cb = (CheckBox)grdforumcomments.Rows[i].Cells[0].FindControl(“cbSel”);
cb.Checked = ((CheckBox)sender).Checked;
}
Select checked rows to a dataset; For gridview multiple edit
CheckBox cb = default(CheckBox);
foreach (GridViewRow row in grdforumcomments.Rows)
{
cb = (CheckBox)row.FindControl("cbsel");
if (cb.Checked)
{
drArticleCommentsUpdates = dtArticleCommentsUpdates.NewRow();
drArticleCommentsUpdates["Id"] = dgItem.Cells[0].Text;
drArticleCommentsUpdates["Date"] = System.DateTime.Now;dtArticleCommentsUpdates.Rows.Add(drArticleCommentsUpdates);
}
}
Since the accepted BufferedInputStream#read
isn't guaranteed to read everything, rather than keeping track of the buffer sizes myself, I used this approach:
byte bytes[] = new byte[(int) file.length()];
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));
DataInputStream dis = new DataInputStream(bis);
dis.readFully(bytes);
Blocks until a full read is complete, and doesn't require extra imports.
Creating custom authentication in ASP.NET Core can be done in a variety of ways. If you want to build off existing components (but don't want to use identity), checkout the "Security" category of docs on docs.asp.net. https://docs.asp.net/en/latest/security/index.html
Some articles you might find helpful:
Using Cookie Middleware without ASP.NET Identity
Custom Policy-Based Authorization
And of course, if that fails or docs aren't clear enough, the source code is at https://github.com/dotnet/aspnetcore/tree/master/src/Security which includes some samples.
I had the same problem and the cause was That at time of returning a string in your backend (spring) you might be returning as return "spring used"; But this isn't parsed right according to spring. Instead use return "\" spring used \""; -Peace out
$('a[href$="ABC"]')...
Selector documentation can be found at http://docs.jquery.com/Selectors
For attributes:
= is exactly equal
!= is not equal
^= is starts with
$= is ends with
*= is contains
~= is contains word
|= is starts with prefix (i.e., |= "prefix" matches "prefix-...")
If you don't want to force a declaration of a variable that is set and checked on each subtest, then adding this to a SuperTest could do:
public abstract class SuperTest {
private static final ConcurrentHashMap<Class, Boolean> INITIALIZED = new ConcurrentHashMap<>();
protected final boolean initialized() {
final boolean[] absent = {false};
INITIALIZED.computeIfAbsent(this.getClass(), (klass)-> {
return absent[0] = true;
});
return !absent[0];
}
}
public class SubTest extends SuperTest {
@Before
public void before() {
if ( super.initialized() ) return;
... magic ...
}
}
The main intention here is to send an ordered JSON object as response. We don't need javax.json.JsonObject to achieve that. We could create the ordered json as a string. First create a LinkedHashMap with all key value pairs in required order. Then generate the json in string as shown below. Its much easier with Java 8.
public Response getJSONResponse() {
Map<String, String> linkedHashMap = new LinkedHashMap<>();
linkedHashMap.put("A", "1");
linkedHashMap.put("B", "2");
linkedHashMap.put("C", "3");
String jsonStr = linkedHashMap.entrySet().stream()
.map(x -> "\"" + x.getKey() + "\":\"" + x.getValue() + "\"")
.collect(Collectors.joining(",", "{", "}"));
return Response.ok(jsonStr).build();
}
The response return by this function would be following:
{"A":"1","B":"2","C":"3"}
In Info Plist file Add a row for following property
Property Name : View controller-based status bar appearance
Value : NO
I have noticed that when using type="image/vnd.microsoft.icon"
, the favicon fails to appear when the browser is not connected to the internet.
But type="image/x-icon"
works whether the browser can connect to the internet, or not.
When developing, at times I am not connected to the internet.
What do you mean by delete
? In Python, removing a reference (or a name) can be done with the del
keyword, but if there are other names to the same object that object will not be deleted.
--> test = 3
--> print(test)
3
--> del test
--> print(test)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'test' is not defined
compared to:
--> test = 5
--> other is test # check that both name refer to the exact same object
True
--> del test # gets rid of test, but the object is still referenced by other
--> print(other)
5
Make sure this is included in your Info.plist:
<key>CFBundlePackageType</key>
<string>APPL</string>
I had APPL misspelled as AAPL. Once I fixed that and signed into Application Loader and Xcode with the same Apple ID, everything worked.
You should include <string.h>
(or its C++ equivalent, <cstring>
).
I think of return
as a trick. As a general rule, the value of the last expression evaluated in a function becomes the function's value -- and this general pattern is found in many places. All of the following evaluate to 3:
local({
1
2
3
})
eval(expression({
1
2
3
}))
(function() {
1
2
3
})()
What return
does is not really returning a value (this is done with or without it) but "breaking out" of the function in an irregular way. In that sense, it is the closest equivalent of GOTO statement in R (there are also break and next). I use return
very rarely and never at the end of a function.
if(a) {
return(a)
} else {
return(b)
}
... this can be rewritten as if(a) a else b
which is much better readable and less curly-bracketish. No need for return
at all here. My prototypical case of use of "return" would be something like ...
ugly <- function(species, x, y){
if(length(species)>1) stop("First argument is too long.")
if(species=="Mickey Mouse") return("You're kidding!")
### do some calculations
if(grepl("mouse", species)) {
## do some more calculations
if(species=="Dormouse") return(paste0("You're sleeping until", x+y))
## do some more calculations
return(paste0("You're a mouse and will be eating for ", x^y, " more minutes."))
}
## some more ugly conditions
# ...
### finally
return("The end")
}
Generally, the need for many return's suggests that the problem is either ugly or badly structured.
[EDIT]
return
doesn't really need a function to work: you can use it to break out of a set of expressions to be evaluated.
getout <- TRUE
# if getout==TRUE then the value of EXP, LOC, and FUN will be "OUTTA HERE"
# .... if getout==FALSE then it will be `3` for all these variables
EXP <- eval(expression({
1
2
if(getout) return("OUTTA HERE")
3
}))
LOC <- local({
1
2
if(getout) return("OUTTA HERE")
3
})
FUN <- (function(){
1
2
if(getout) return("OUTTA HERE")
3
})()
identical(EXP,LOC)
identical(EXP,FUN)
I was hanging out on Google, then I found your question and it's very simple to parse JSON response into normal HTML. Just use this little JavaScript code:
<!DOCTYPE html>
<html>
<body>
<h2>Create Object from JSON String</h2>
<p id="demo"></p>
<script>
var obj = JSON.parse('{ "name":"John", "age":30, "city":"New York"}');
document.getElementById("demo").innerHTML = obj.name + ", " + obj.age;
</script>
</body>
</html>
I just tried and it works with require "./tokenizer"
. Hope this helps.
This is what worked for me when I got a similar error in Windows; 1. Install virtualenv
pip install virtualenve
Create a virtualenv
virtualenv flask
Navigate to Scripts and activate the virtualenv
activate
Install Flask
python -m pip install flask
Check if flask is installed
python -m pip list
If you're creating a framework the whole idea is to make it portable. Tying a framework to the app delegate defeats the purpose of building a framework. What is it you need the app delegate for?
open your /etc/paths file, put /usr/local/bin on top of /usr/bin
$ sudo vi /etc/paths
/usr/local/bin
/usr/local/sbin
/usr/bin
/bin
/usr/sbin
/sbin
and Restart the terminal, @mmel
SWIFT 4 Update
@IBOutlet weak var tripDetails: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
let tap = UITapGestureRecognizer(target: self, action: #selector(GameViewController.tapFunction))
tripDetails.isUserInteractionEnabled = true
tripDetails.addGestureRecognizer(tap)
}
@objc func tapFunction(sender:UITapGestureRecognizer) {
print("tap working")
}
Find the following , it will help you to print the complete triangle.
package com.raju.arrays;
public class CompleteTriange {
public static void main(String[] args) {
int nuberOfRows = 10;
for(int row = 0; row<nuberOfRows;row++){
for(int leftspace =0;leftspace<(nuberOfRows-row);leftspace++){
System.out.print(" ");
}
for(int star = 0;star<2*row+1;star++){
System.out.print("*");
}
for(int rightSpace =0;rightSpace<(nuberOfRows-row);rightSpace++){
System.out.print(" ");
}
System.out.println("");
}
}
}
*
***
*****
*******
*********
***********
*************
If expression
returns a boolean, you can just return the result of it.
Example
return (a > b)
Used to this
input[type="radio"]{
vertical-align:top;
}
p{
font-size:10px;line-height: 18px;
}
Jacob Helwig mentions in his answer that:
It looks like rev-parse is being used without sufficient error checking before-hand
Commit 62f162f from Jeff King (peff
) should improve the robustness of git rev-parse
in Git 1.9/2.0 (Q1 2014) (in addition of commit 1418567):
For cases where we do not match (e.g., "
doesnotexist..HEAD
"), we would then want to try to treat the argument as a filename.
try_difference()
gets this right, and always unmunges in this case.
However,try_parent_shorthand()
never unmunges, leading to incorrect error messages, or even incorrect results:
$ git rev-parse foobar^@
foobar
fatal: ambiguous argument 'foobar': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'
I think "works fine in Firefox" is in the Quirks mode rendering only. In the Standard mode rendering, that might not work fine in Firefox too.
percentage depends on "containing block", instead of viewport.
The percentage is calculated with respect to the height of the generated box's containing block. If the height of the containing block is not specified explicitly (i.e., it depends on content height), and this element is not absolutely positioned, the value computes to 'auto'.
so
#container { height: auto; }
#container #mainContentsWrapper { height: n%; }
#container #sidebarWrapper { height: n%; }
means
#container { height: auto; }
#container #mainContentsWrapper { height: auto; }
#container #sidebarWrapper { height: auto; }
To stretch to 100% height of viewport, you need to specify the height of the containing block (in this case, it's #container). Moreover, you also need to specify the height to body and html, because initial Containing Block is "UA-dependent".
All you need is...
html, body { height:100%; }
#container { height:100%; }
A not so scalable fix that I used for this is to copy the data to a plain text editor, convert the cells to text and then copy the data back to the spreadsheet.
As a newbie in React world, I came across a similar issues where I could not edit
the textarea and struggled
with binding. It's worth knowing about controlled
and uncontrolled
elements when it comes to react.
The value of the following uncontrolled textarea
cannot be changed because of value
<textarea type="text" value="some value"
onChange={(event) => this.handleOnChange(event)}></textarea>
The value of the following uncontrolled textarea
can be changed because of use of defaultValue
or no value attribute
<textarea type="text" defaultValue="sample"
onChange={(event) => this.handleOnChange(event)}></textarea>
<textarea type="text"
onChange={(event) => this.handleOnChange(event)}></textarea>
The value of the following controlled textarea
can be changed because of how
value is mapped to a state as well as the onChange
event listener
<textarea value={this.state.textareaValue}
onChange={(event) => this.handleOnChange(event)}></textarea>
Here is my solution using different syntax. I prefer the auto-bind
than manual binding however, if I were to not use {(event) => this.onXXXX(event)}
then that would cause the content of textarea
to be not editable OR the event.preventDefault()
does not work as expected. Still a lot to learn I suppose.
class Editor extends React.Component {
constructor(props) {
super(props)
this.state = {
textareaValue: ''
}
}
handleOnChange(event) {
this.setState({
textareaValue: event.target.value
})
}
handleOnSubmit(event) {
event.preventDefault();
this.setState({
textareaValue: this.state.textareaValue + ' [Saved on ' + (new Date()).toLocaleString() + ']'
})
}
render() {
return <div>
<form onSubmit={(event) => this.handleOnSubmit(event)}>
<textarea rows={10} cols={30} value={this.state.textareaValue}
onChange={(event) => this.handleOnChange(event)}></textarea>
<br/>
<input type="submit" value="Save"/>
</form>
</div>
}
}
ReactDOM.render(<Editor />, document.getElementById("content"));
The versions of libraries are
"babel-cli": "6.24.1",
"babel-preset-react": "6.24.1"
"React & ReactDOM v15.5.4"
simple difference between for and foreach
for loop is working with values.it must have condition then increment and intialization also.you have to knowledge about 'how many times loop repeated'.
foreach is working with objects and enumaretors. no need to knowledge how many times loop repeated.
You can POST an HttpRequest using WebServer class and track the response in its listener interface.
WebServer server=new WebServer(getApplicationContext());
server.setOnServerStatusListner(new WebServer.OnServerStatusListner() {
@Override
public void onServerResponded(String responce) {
}
@Override
public void onServerRevoked() {
}
});
Now create a DataRack to bind your data
List<DataRack> racks=new ArrayList<DataRack>();
racks.add(new DataRack("name","Simon"));
racks.add(new DataRack("age","40"));
racks.add(new DataRack("location","Canada"));
Now simply send the POST request with that rack
server.connectWithPOST(MainActivity.this,"http://sangeethnandakumar.esy.es/PROJECTS/PUBLIC_SERVICE/posttest.php",racks);
You need to include my library for this. Documentations here
For Jersey 2.* (Tested on 2.7) and java 8:
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
public static Client ignoreSSLClient() throws Exception {
SSLContext sslcontext = SSLContext.getInstance("TLS");
sslcontext.init(null, new TrustManager[]{new X509TrustManager() {
public void checkClientTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {}
public void checkServerTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {}
public X509Certificate[] getAcceptedIssuers() { return new X509Certificate[0]; }
}}, new java.security.SecureRandom());
return ClientBuilder.newBuilder()
.sslContext(sslcontext)
.hostnameVerifier((s1, s2) -> true)
.build();
}
This code will work. The answer from samplebias is almost correct, but you need a third change:
int addNodeBottom(int val, node *head){
//create new node
node *newNode = (node*)malloc(sizeof(node));
if(newNode == NULL){
fprintf(stderr, "Unable to allocate memory for new node\n");
exit(-1);
}
newNode->value = val;
newNode->next = NULL; // Change 1
//check for first insertion
if(head->next == NULL){
head->next = newNode;
printf("added at beginning\n");
}
else
{
//else loop through the list and find the last
//node, insert next to it
node *current = head;
while (true) { // Change 2
if(current->next == NULL)
{
current->next = newNode;
printf("added later\n");
break; // Change 3
}
current = current->next;
};
}
return 0;
}
Change 1: newNode->next
must be set to NULL
so we don't insert invalid pointers at the end of the list.
Change 2/3: The loop is changed to an endless loop that will be jumped out with break;
when we found the last element. Note how while(current->next != NULL)
contradicted if(current->next == NULL)
before.
EDIT: Regarding the while loop, this way it is much better:
node *current = head;
while (current->next != NULL) {
current = current->next;
}
current->next = newNode;
printf("added later\n");
You can just pass your URL,
NSURL *url = [NSURL URLWithString:@"http://www.myurl.com/1.png"];
NSURLSessionTask *task = [[NSURLSession sharedSession] dataTaskWithURL:url completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
if (data) {
UIImage *image = [UIImage imageWithData:data];
if (image) {
dispatch_async(dispatch_get_main_queue(), ^{
yourimageview.image = image;
});
}
}
}];
[task resume];
As mentioned in the other comment, the transform
attribute on the g
element is what you want. Use transform="translate(x,y)"
to move the g
around and things within the g
will move in relation to the g
.
Uhm, what's wrong with this:
#include <iostream>
using namespace std;
int main(int, char **)
{
char c = 'A';
int x = c; // Look ma! No cast!
cout << "The character '" << c << "' has an ASCII code of " << x << endl;
return 0;
}
Well, you can achieve that with Jackson, too. (and it seems to be more comfortable since you were considering using jackson).
Use ObjectMapper
's convertValue
method:
final ObjectMapper mapper = new ObjectMapper(); // jackson's objectmapper
final MyPojo pojo = mapper.convertValue(map, MyPojo.class);
No need to convert into JSON string or something else; direct conversion does much faster.
For my Samsung S3, I had to go into Developer Options on the phone, untick the "USB debugging" checkbox, then re-tick it.
Then the dialog will appear, asking if you want to allow USB Debugging.
Once I'd done this, the "adb devices
" command no longer showed "unauthorized" as my device name.
(Several months later..)
Actually, the same was true for connecting my Galaxy Tab S device, and the menu options were in slightly different places with Android 4.4.2:
For no particular reason, arrays cannot be assigned to one another. Use std::copy
instead:
#include <algorithm>
// ...
int a[8] = {2, 3, 5, 7, 11, 13, 17, 19};
int b[8];
std::copy(a + 0, a + 8, b);
This is more flexible than what true array assignment could provide because it is possible to copy slices of larger arrays into smaller arrays.
std::copy
is usually specialized for primitive types to give maximum performance. It is unlikely that std::memcpy
performs better. If in doubt, measure.
Although you cannot assign arrays directly, you can assign structs and classes which contain array members. That is because array members are copied memberwise by the assignment operator which is provided as a default by the compiler. If you define the assignment operator manually for your own struct or class types, you must fall back to manual copying for the array members.
Arrays cannot be passed by value. You can either pass them by pointer or by reference.
Since arrays themselves cannot be passed by value, usually a pointer to their first element is passed by value instead. This is often called "pass by pointer". Since the size of the array is not retrievable via that pointer, you have to pass a second parameter indicating the size of the array (the classic C solution) or a second pointer pointing after the last element of the array (the C++ iterator solution):
#include <numeric>
#include <cstddef>
int sum(const int* p, std::size_t n)
{
return std::accumulate(p, p + n, 0);
}
int sum(const int* p, const int* q)
{
return std::accumulate(p, q, 0);
}
As a syntactic alternative, you can also declare parameters as T p[]
, and it means the exact same thing as T* p
in the context of parameter lists only:
int sum(const int p[], std::size_t n)
{
return std::accumulate(p, p + n, 0);
}
You can think of the compiler as rewriting T p[]
to T *p
in the context of parameter lists only. This special rule is partly responsible for the whole confusion about arrays and pointers. In every other context, declaring something as an array or as a pointer makes a huge difference.
Unfortunately, you can also provide a size in an array parameter which is silently ignored by the compiler. That is, the following three signatures are exactly equivalent, as indicated by the compiler errors:
int sum(const int* p, std::size_t n)
// error: redefinition of 'int sum(const int*, size_t)'
int sum(const int p[], std::size_t n)
// error: redefinition of 'int sum(const int*, size_t)'
int sum(const int p[8], std::size_t n) // the 8 has no meaning here
Arrays can also be passed by reference:
int sum(const int (&a)[8])
{
return std::accumulate(a + 0, a + 8, 0);
}
In this case, the array size is significant. Since writing a function that only accepts arrays of exactly 8 elements is of little use, programmers usually write such functions as templates:
template <std::size_t n>
int sum(const int (&a)[n])
{
return std::accumulate(a + 0, a + n, 0);
}
Note that you can only call such a function template with an actual array of integers, not with a pointer to an integer. The size of the array is automatically inferred, and for every size n
, a different function is instantiated from the template. You can also write quite useful function templates that abstract from both the element type and from the size.
Just do
if (Attachment != null && Attachment.Length > 0)
From && Operator
The conditional-AND operator (&&) performs a logical-AND of its bool operands, but only evaluates its second operand if necessary.
jquery:
$('div.animalcontent').hide();
$('div').hide();
$('p.animal').bind('mouseover', function() {
$('div.animalcontent').fadeOut();
$('#'+$(this).attr('id')+'content').fadeIn();
});
html:
<p class='animal' id='dog'>dog url</p><div id='dogcontent' class='animalcontent'>Doggiecontent!</div>
<p class='animal' id='cat'>cat url</p><div id='catcontent' class='animalcontent'>Pussiecontent!</div>
<p class='animal' id='snake'>snake url</p><div id='snakecontent'class='animalcontent'>Snakecontent!</div>
-edit-
yeah sure, here you go -- JSFiddle
Yes you can (this is how I understand the original question). Here is how I did it. Just tie it into outside context. For example:
//javascript
my_function = null;
//jquery
$(function() {
function my_fun(){
/.. some operations ../
}
my_function = my_fun;
})
//just js
function js_fun () {
my_function(); //== call jquery function - just Reference is globally defined not function itself
}
I encountered this same problem when trying to access methods of the object, that was instantiated on DOM object ready only. Works. My example:
MyControl.prototype = {
init: function {
// init something
}
update: function () {
// something useful, like updating the list items of control or etc.
}
}
MyCtrl = null;
// create jquery plug-in
$.fn.aControl = function () {
var control = new MyControl(this);
control.init();
MyCtrl = control; // here is the trick
return control;
}
now you can use something simple like:
function() = {
MyCtrl.update(); // yes!
}
Use google GSON library for this
public static <T> T getObject(final String jsonString, final Class<T> objectClass) {
Gson gson = new Gson();
return gson.fromJson(jsonString, objectClass);
}
http://iandjava.blogspot.in/2014/01/java-object-to-json-and-json-to-java.html
You can use the fnSort function, see the details here:
While compiling in RHEL 6.2 (x86_64), I installed both 32bit and 64bit libstdc++-dev packages, but I had the "c++config.h no such file or directory" problem.
Resolution:
The directory /usr/include/c++/4.4.6/x86_64-redhat-linux
was missing.
I did the following:
cd /usr/include/c++/4.4.6/
mkdir x86_64-redhat-linux
cd x86_64-redhat-linux
ln -s ../i686-redhat-linux 32
I'm now able to compile 32bit binaries on a 64bit OS.
put the folder which has the properties file for log in java build path source. You can add it by right clicking the project ----> build path -----> configure build path ------> add t
This is a lot easier to do starting in select2 v4. You can create a new Option
, and append it to the select
element directly. See my codepen or the example below:
$(document).ready(function() {_x000D_
$("#state").select2({_x000D_
tags: true_x000D_
});_x000D_
_x000D_
$("#btn-add-state").on("click", function(){_x000D_
var newStateVal = $("#new-state").val();_x000D_
// Set the value, creating a new option if necessary_x000D_
if ($("#state").find("option[value=" + newStateVal + "]").length) {_x000D_
$("#state").val(newStateVal).trigger("change");_x000D_
} else { _x000D_
// Create the DOM option that is pre-selected by default_x000D_
var newState = new Option(newStateVal, newStateVal, true, true);_x000D_
// Append it to the select_x000D_
$("#state").append(newState).trigger('change');_x000D_
} _x000D_
}); _x000D_
});
_x000D_
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.1/css/select2.min.css" rel="stylesheet"/>_x000D_
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.6/js/bootstrap.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.1/js/select2.min.js"></script>_x000D_
_x000D_
_x000D_
<select id="state" class="js-example-basic-single" type="text" style="width:90%">_x000D_
<option value="AL">Alabama</option>_x000D_
<option value="WY">Wyoming</option>_x000D_
</select>_x000D_
<br>_x000D_
<br>_x000D_
<input id="new-state" type="text" />_x000D_
<button type="button" id="btn-add-state">Set state value</button>
_x000D_
Hint: try entering existing values into the text box, like "AL" or "WY". Then try adding some new values.
Use any method for which the server is working after that you can use this address to open the page on browser (if you've replaced the port 80 with 81 )
http://localhost:81/phpmyadmin/
To test the error handling, you can do something like this:
feature ErrorHandling do
before do
Rails.application.config.consider_all_requests_local = false
Rails.application.config.action_dispatch.show_exceptions = true
end
scenario 'renders not_found template' do
visit '/blah'
expect(page).to have_content "The page you were looking for doesn't exist."
end
end
You can use the expandable list view explained in API demos to show groups
To animate the list items motion, you will have to override the getView method and apply translate animation on each list item. The values for animation depend on the position of each list item. This was something which i tried on a simple list view long time back.
Properties -> FormBorderStyle -> FixedSingle
if you can not find your Properties tool. Go to View -> Properties Window
In my particular case the function was actually missing. The error message is the same. I am using the Postgresql plugin PostGIS and I had to reinstall that for whatever reason.
The top answer is doing too much work and looks to be very slow for larger data sets. apply
is slow and should be avoided if possible. ix
is deprecated and should be avoided as well.
df.sort_values('B', ascending=False).drop_duplicates('A').sort_index()
A B
1 1 20
3 2 40
4 3 10
Or simply group by all the other columns and take the max of the column you need. df.groupby('A', as_index=False).max()
To make POST request instead of GET request using urllib2
, you need to specify empty data, for example:
import urllib2
req = urllib2.Request("http://am.domain.com:8080/openam/json/realms/root/authenticate?authIndexType=Module&authIndexValue=LDAP")
req.add_header('X-OpenAM-Username', 'demo')
req.add_data('')
r = urllib2.urlopen(req)
The problem is simple that the PHP-Mail function is not using a well configured SMTP Server.
Nowadays Email-Clients and Servers perform massive checks on the emails sending server, like Reverse-DNS-Lookups, Graylisting and whatevs. All this tests will fail with the php mail() function. If you are using a dynamic ip, its even worse.
Use the PHPMailer-Class and configure it to use smtp-auth along with a well configured, dedicated SMTP Server (either a local one, or a remote one) and your problems are gone.
If the string is empty, comboBox.getSelectedItem().toString()
will give a NullPointerException
. So better to typecast by (String)
.
After adding UDID in developer.apple.com, do the following steps:
1, Go to Xcode, open Preferences (cmd + ,) -> Accounts -> Click your Apple ID -> View Details
2, In the new window, click on "Refresh", then "Request"
3, Now try to run your app on the new device, if you get an error saying "unfound provisioning profile", keep reading
4, Click on your project
6, Find "Fix It" button in Identity section, click it
7, Now try to run again, it should work
It can be done in the following two ways:
select floor(desired_field_value) from table
select round(desired_field_value-0.5) from table
The 2nd-way explanation: Assume 12345.7344 integer. So, 12345.7344 - 0.5 = 12345.2344 and rounding off the result will be 12345.
Given a Window object myWindow, myWindow.Show() will open it modelessly and myWindow.ShowDialog() will open it modally. However, even the latter doesn't block, from what I remember.
You just need to specify text-decoration: underline;
with pseudo-class :hover
.
<span class="underline-on-hover">Hello world</span>
.underline-on-hover:hover {
text-decoration: underline;
}
I have whipped up a working Code Pen Demo.
Now there is special method - get_fields()
>>> from django.contrib.auth.models import User
>>> User._meta.get_fields()
It accepts two parameters that can be used to control which fields are returned:
include_parents
True by default. Recursively includes fields defined on parent classes. If set to False, get_fields() will only search for fields declared directly on the current model. Fields from models that directly inherit from abstract models or proxy classes are considered to be local, not on the parent.
include_hidden
False by default. If set to True, get_fields() will include fields that are used to back other field’s functionality. This will also include any fields that have a related_name (such as ManyToManyField, or ForeignKey) that start with a “+”
Beware of using vars as the target directory name for WORKDIR
- doing that appears to result in a "cannot normalize nothing" fatal error. IMO, it's also worth pointing out that WORKDIR
behaves in the same way as mkdir -p <path>
i.e. all elements of the path are created if they don't exist already.
UPDATE:
I encountered the variable related problem (mentioned above) whilst running a multi-stage build - it now appears that using a variable is fine - if it (the variable) is "in scope" e.g. in the following, the 2nd WORKDIR
reference fails ...
FROM <some image>
ENV varname varval
WORKDIR $varname
FROM <some other image>
WORKDIR $varname
whereas, it succeeds in this ...
FROM <some image>
ENV varname varval
WORKDIR $varname
FROM <some other image>
ENV varname varval
WORKDIR $varname
.oO(Maybe it's in the docs & I've missed it)
Have you tried removing it from the DOM, then inserting it back again?
I just did, that doesn't work. However, creating a new script tag and copying the contents of the existing script tag, then adding it, works well.
See my example http://jsfiddle.net/mendesjuan/LPFYB/
var scriptTag = document.createElement('script');
scriptTag.innerText = "document.body.innerHTML += 'Here again ---<BR>';";
var head = document.getElementsByTagName('head')[0];
head.appendChild(scriptTag);
setInterval(function() {
head.removeChild(scriptTag);
var newScriptTag = document.createElement('script');
newScriptTag.innerText = scriptTag.innerText;
head.appendChild(newScriptTag);
scriptTag = newScriptTag;
}, 1000);
This won't work if you expect the script to change every time, which I believe is your case. You should follow Kelly's suggestion, just remove the old script tag (just to keep the DOM slim, it won't affect the outcome) and reinsert a new script tag with the same src, plus a cachebuster.
You should see the error log. By default, its location is in /var/log/nginx/error.log
In my case, 502 get way because of:
GET /app_dev.php HTTP/1.1", upstream: "fastcgi://unix:/run/php/php7.0-fpm.sock:", host: "symfony2.local"
2016/05/25 11:57:28 [error] 22889#22889: *3 upstream sent too big header while reading response header from upstream, client: 127.0.0.1, server: symfony2.local, request: "GET /app_dev.php HTTP/1.1", upstream: "fastcgi://unix:/run/php/php7.0-fpm.sock:", host: "symfony2.local"
2016/05/25 11:57:29 [error] 22889#22889: *3 upstream sent too big header while reading response header from upstream, client: 127.0.0.1, server: symfony2.local, request: "GET /app_dev.php HTTP/1.1", upstream: "fastcgi://unix:/run/php/php7.0-fpm.sock:", host: "symfony2.local"
2016/05/25 11:57:29 [error] 22889#22889: *3 upstream sent too big header while reading response header from upstream, client: 127.0.0.1, server: symfony2.local, request: "GET /app_dev.php HTTP/1.1", upstream: "fastcgi://unix:/run/php/php7.0-fpm.sock:", host: "symfony2.local"
When we know exactly what is wrong, then fix it. For these error, just modify the buffer:
fastcgi_buffers 16 512k;
fastcgi_buffer_size 512k;
Typically, a script is a lightweight, quickly constructed, possibly single-use tool. It's usually interpreted, not compiled. Python and bash are examples of languages used to build scripts.
A program is constructed in a compiled language, like C or C++, and usually runs more quickly than a script for that reason. Larger tools are often written as "programs" rather than scripts - smaller tools are more easily developed as scripts, but scripts can get unwieldy as they get larger. Application and system languages (those used to build programs/applications) have tools to make that growth easier to manage.
You can usually view a script in a text editor to see what it does. You can't do that with an executable program - the latter's instructions have been compiled into bytecode or machine language that makes it very difficult for humans to understand, without specialized tools.
Note the number of "oftens" and "usuallys" above - the terms are nebulous, and cross over sometimes.
Set it within button
instead of div
if you don't care about its little visual 3D effect.
#box_x000D_
{_x000D_
height: 120px;_x000D_
width: 300px;_x000D_
background: #000;_x000D_
font-size: 48px;_x000D_
font-style: oblique;_x000D_
color: #FFF;_x000D_
}
_x000D_
<button Id="box" disabled>_x000D_
Lorem ipsum dolor sit amet, consectetur adipiscing elit._x000D_
</button>
_x000D_
If you use PHP on Linux, you may try the following to read text for example between 74th and 159th lines:
$text = shell_exec("sed -n '74,159p' path/to/file.log");
This solution is good if your file is large.
For anyone who, like me, reads this because they need to update a giant legacy project to 5.6: as the answers here point out, there is no quick fix: you really do need to find each occurrence of the problem manually, and fix it.
The most convenient way I found to find all problematic lines in a project (short of using a full-blown static code analyzer, which is very accurate but I don't know any that take you to the correct position in the editor right away) was using Visual Studio Code, which has a nice PHP linter built in, and its search feature which allows searching by Regex. (Of course, you can use any IDE/Code editor for this that does PHP linting and Regex searches.)
Using this regex:
^(?!.*function).*(\&\$)
it is possible to search project-wide for the occurrence of &$
only in lines that are not a function definition.
This still turns up a lot of false positives, but it does make the job easier.
VSCode's search results browser makes walking through and finding the offending lines super easy: you just click through each result, and look out for those that the linter underlines red. Those you need to fix.
Struct values encode as JSON objects. Each exported struct field becomes a member of the object unless:
The empty values are false, 0, any nil pointer or interface value, and any array, slice, map, or string of length zero. The object's default key string is the struct field name but can be specified in the struct field's tag value. The "json" key in the struct field's tag value is the key name, followed by an optional comma and options.
Check service dependencies if they are disabled.
Set those dependencies to Automatic, Start them and it should work.
If you're looking to just indent the first sentence in a paragraph, you could do that with a small CSS trick:
p:first-letter {
margin-left: 5em;
}
You can reload parent window location using :
window.opener.location.href = window.opener.location.href;
select *
from
tableA a
inner join
tableB b
on a.common = b.common
inner join
TableC c
on b.common = c.common
>>>def random_char(y):
return ''.join(random.choice(string.ascii_letters) for x in range(y))
>>>print (random_char(5))
>>>fxkea
to generate y number of random characters
http://en.wikipedia.org/wiki/Division_by_zero
http://en.wikipedia.org/wiki/Unix_signal#SIGFPE
This should give you a really good idea. Since a modulus is, in its basic sense, division with a remainder, something % 0
IS division by zero and as such, will trigger a SIGFPE being thrown.
Same as the above answer but allows for triple click. (Delay 500) http://jsfiddle.net/luenwarneke/rV78Y/1/
var DELAY = 500,
clicks = 0,
timer = null;
$(document).ready(function() {
$("a")
.on("click", function(e){
clicks++; //count clicks
timer = setTimeout(function() {
if(clicks === 1) {
alert('Single Click'); //perform single-click action
} else if(clicks === 2) {
alert('Double Click'); //perform single-click action
} else if(clicks >= 3) {
alert('Triple Click'); //perform Triple-click action
}
clearTimeout(timer);
clicks = 0; //after action performed, reset counter
}, DELAY);
})
.on("dblclick", function(e){
e.preventDefault(); //cancel system double-click event
});
});
As you’re in the context of HTML, you need to use HTML to represent that character. And for HTML you need to use a numeric character reference '
('
hexadecimal):
<input type='text' id='abc' value='hel'lo'>
You might have disabled the exec privileges, most of the LAMP packages have those disabled. Check your php.ini for this line:
disable_functions = exec
And remove the exec, shell_exec entries if there are there.
Good Luck!
You can use a TableModel
.
Define a class like this:
public class MyModel extends AbstractTableModel{
//not necessary
}
actually isCellEditable()
is false
by default so you may omit it. (see: http://docs.oracle.com/javase/6/docs/api/javax/swing/table/AbstractTableModel.html)
Then use the setModel()
method of your JTable
.
JTable myTable = new JTable();
myTable.setModel(new MyModel());
DATE_ADD
works correctly. 1 January plus 6 months is 1 July, just like 1 January plus 1 month is 1 of February.
Between operation is inclusive. So, you are getting everything up to, and including, 1 July. (see also MySQL "between" clause not inclusive?)
What you need to do is subtract 1 day or use < operator instead of between.
private void btnSent_Click(object sender, EventArgs e)
{
try
{
MailMessage mail = new MailMessage();
SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");
mail.From = new MailAddress(txtAcc.Text);
mail.To.Add(txtToAdd.Text);
mail.Subject = txtSub.Text;
mail.Body = txtContent.Text;
System.Net.Mail.Attachment attachment;
attachment = new System.Net.Mail.Attachment(txtAttachment.Text);
mail.Attachments.Add(attachment);
SmtpServer.Port = 587;
SmtpServer.Credentials = new System.Net.NetworkCredential(txtAcc.Text, txtPassword.Text);
SmtpServer.EnableSsl = true;
SmtpServer.Send(mail);
MessageBox.Show("mail send");
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
private void button1_Click(object sender, EventArgs e)
{
MailMessage mail = new MailMessage();
openFileDialog1.ShowDialog();
System.Net.Mail.Attachment attachment;
attachment = new System.Net.Mail.Attachment(openFileDialog1.FileName);
mail.Attachments.Add(attachment);
txtAttachment.Text =Convert.ToString (openFileDialog1.FileName);
}
This work for me
from flask import Flask
from flask import Response
app = Flask(__name__)
@app.route("/")
def home():
return Response(headers={'Access-Control-Allow-Origin':'*'})
if __name__ == "__main__":
app.run()
Here's a solution that uses a jQuery selector so you can easily target tags of any class, ID, type etc.
jQuery('div').on('click', function(){
var node = jQuery(this).get(0);
var range = document.createRange();
range.selectNodeContents( node );
window.getSelection().removeAllRanges();
window.getSelection().addRange( range );
});
If you don't want to set max-width to td (like in this answer), you can set max-width to div:
function so_hack(){}
function so_hack(){}
http://jsfiddle.net/fd3Zx/754/ function so_hack(){}
function so_hack(){}
Note: 100% doesn't work, but 99% does the trick in FF. Other modern browsers doesn't need silly div hacks.
td { border: 1px solid black; padding-left:5px; padding-right:5px; } td>div{ max-width: 99%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
Go to control panel --> Java You can select the active version here
Another way
@Html.TextAreaFor(model => model.Comments[0].Comment)
And in your css do this
textarea
{
font-family: inherit;
width: 650px;
height: 65px;
}
That DataType dealie allows carriage returns in the data, not everybody likes those.
Try Restarting the editor in which you are writing the code(VS code or Sublime). Compile and Run it again. I have done the same and it worked.
This happens when you add a new class outside from your editor or keep running your angular cli 'ng serve'. Actually your editor or the 'ng serve' command may not able to find the newly created files.
data = """a,b,c
d,e,f
g,h,i
j,k,l"""
print(data.split()) # ['a,b,c', 'd,e,f', 'g,h,i', 'j,k,l']
str.split
, by default, splits by all the whitespace characters. If the actual string has any other whitespace characters, you might want to use
print(data.split("\n")) # ['a,b,c', 'd,e,f', 'g,h,i', 'j,k,l']
Or as @Ashwini Chaudhary suggested in the comments, you can use
print(data.splitlines())
ArgumentException is thrown when a method is invoked and at least one of the passed arguments does not meet the parameter specification of the called method. All instances of ArgumentException should carry a meaningful error message describing the invalid argument, as well as the expected range of values for the argument.
A few subclasses also exist for specific types of invalidity. The link has summaries of the subtypes and when they should apply.
And finally the most simple solution:
With alert confirmation:
<script type="text/javascript">
// Set timeout variables.
var timoutWarning = 3000; // Display warning in 1Mins.
var timoutNow = 4000; // Timeout in 2 mins.
var warningTimer;
var timeoutTimer;
// Start timers.
function StartTimers() {
warningTimer = setTimeout("IdleWarning()", timoutWarning);
timeoutTimer = setTimeout("IdleTimeout()", timoutNow);
}
// Reset timers.
function ResetTimers() {
clearTimeout(warningTimer);
clearTimeout(timeoutTimer);
StartTimers();
$("#timeout").dialog('close');
}
// Show idle timeout warning dialog.
function IdleWarning() {
var answer = confirm("Session About To Timeout\n\n You will be automatically logged out.\n Confirm to remain logged in.")
if (answer){
ResetTimers();
}
else{
IdleTimeout();
}
}
// Logout the user and auto reload or use this window.open('http://www.YourPageAdress.com', '_self'); to auto load a page.
function IdleTimeout() {
window.open(self.location,'_top');
}
</script>
Without alert confirmation:
<script type="text/javascript">
// Set timeout variables.
var timoutWarning = 3000; // Display warning in 1Mins.
var timoutNow = 4000; // Timeout in 2 mins.
var warningTimer;
var timeoutTimer;
// Start timers.
function StartTimers() {
warningTimer = setTimeout(timoutWarning);
timeoutTimer = setTimeout("IdleTimeout()", timoutNow);
}
// Reset timers.
function ResetTimers() {
clearTimeout(warningTimer);
clearTimeout(timeoutTimer);
StartTimers();
$("#timeout").dialog('close');
}
// Logout the user and auto reload or use this window.open('http://www.YourPageAdress.com', '_self'); to auto load a page.
function IdleTimeout() {
window.open(self.location,'_top');
}
</script>
Body code is the SAME for both solutions
<body onload="StartTimers();" onmousemove="ResetTimers();" onKeyPress="ResetTimers();">
I guess this is what you want:
l = range(100)
index = 0
for i in l:
print i,
try:
print l.pop(index+1),
print l.pop(index+1)
except:
pass
index += 1
It is quite handy to code when the number of item to be popped is a run time decision. But it runs with very a bad efficiency and the code is hard to maintain.
You could simplify this a lot:
This will result in this, which will always return a boolean. Your function also should always return a boolean, but you can see it does a little better if you simplify your code:
function validatePassword()
{
var password = document.getElementById("password");
var confirm_password = document.getElementById("password_confirm");
return password.value !== "" && password.value === confirm_password.value;
// not empty and equal
}
When you
Mojave 10.14.6
/usr/include
was deleted againThe file /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg does not exist.
andxcode-select --install
xcode-select: error: command line tools are already installed, use "Software Update" to install updates
Then, what helped me recover the mentioned package, was deleting the whole CommandLineTools
folder
(sudo) rm -rf /Library/Developer/CommandLineTools
and reinstall it xcode-select --install
.
You actually don't need jQuery, just CSS. For example, here's some HTML:
<div class="special"></div>
And here's the CSS:
.special
{
cursor: pointer;
}
Also add the key "StartingMonthColumn" in App.config that you run application from, for example in the App.config of the test project.
In case you are using axios and trying via a service call.
URL: https://react-16-demo.firebaseio.com/
Schema Name: todos
Key: -Lhu8a0uoSRixdmECYPE
axios.delete(`https://react-16-demo.firebaseio.com/todos/-Lhu8a0uoSRixdmECYPE.json`). then();
can help.
NAICS.com is coming out with an API that will add all kinds of key business data including street address. This would happen on the fly as your site's forms are processed. https://www.naics.com/business-intelligence-api/
Just to add to these Anniversary Update
issues (thanks Microsoft) if the file you are missing is cgi.dll
, ie your Event Viewer
has
The Module DLL C:\WINDOWS\System32\inetsrv\cgi.dll failed to load. The data is the error.
Then to fix this:
IIS Manager
Connections
panel (typically your PC name)Management
, you should have Web Platform Installer
Products
cgi
then hit <Enter>
IIS: CGI
then click Add
on the right and finally Install
on the bottomAs detailed in the jTDS Frequenlty Asked Questions, the URL format for jTDS is:
jdbc:jtds:<server_type>://<server>[:<port>][/<database>][;<property>=<value>[;...]]
So, to connect to a database called "Blog" hosted by a MS SQL Server running on MYPC
, you may end up with something like this:
jdbc:jtds:sqlserver://MYPC:1433/Blog;instance=SQLEXPRESS;user=sa;password=s3cr3t
Or, if you prefer to use getConnection(url, "sa", "s3cr3t")
:
jdbc:jtds:sqlserver://MYPC:1433/Blog;instance=SQLEXPRESS
EDIT: Regarding your Connection refused
error, double check that you're running SQL Server on port 1433, that the service is running and that you don't have a firewall blocking incoming connections.
For me I had issues with history and location... As the accepted answer using window before history and location (i.e) window.history and window.location solved mine
If you already use modules in your app, you can use escape-html module.
import escapeHtml from 'escape-html';
const unsafeString = '<script>alert("XSS");</script>';
const safeString = escapeHtml(unsafeString);
What Harley said, except the last point - it's not actually necessary to change the '/'s into '\'s before calling open. Windows is quite happy to accept paths with forward slashes.
infile = open('c:/folder/subfolder/file.txt')
The only time you're likely to need the string normpathed is if you're passing to to another program via the shell (using os.system
or the subprocess
module).
See C# Operators for C# operators including OR which is ||
If you're not having a network error, and wanting to surface an error from the backend, for exmple insufficient privileges, server your response with a 200 and an error message. Then in your success handler check data.status == 'error'
Just download composer and install phpMailler autoloader.php
https://github.com/PHPMailer/PHPMailer/blob/master/composer.json
once composer is loaded use below code:
require_once("phpMailer/class.phpmailer.php");
require_once("phpMailer/PHPMailerAutoload.php");
$mail = new PHPMailer(true);
$mail->SMTPDebug = true;
$mail->SMTPSecure = "tls";
$mail->SMTPAuth = true;
$mail->Username = 'youremail id';
$mail->Password = 'youremail password';
$mail_from = "youremail id";
$subject = "Your Subject";
$body = "email body";
$mail_to = "receiver_email";
$mail->IsSMTP();
try {
$mail->Host= "smtp.your.com";
$mail->Port = "Your SMTP Port No";// ssl port :465,
$mail->Debugoutput = 'html';
$mail->AddAddress($mail_to, "receiver_name");
$mail->SetFrom($mail_from,'AmpleChat Team');
$mail->Subject = $subject;
$mail->MsgHTML($body);
$mail->Send();
$emailreturn = 200;
} catch (phpmailerException $e) {
$emailreturn = $e->errorMessage();
} catch (Exception $e) {
$emailreturn = $e->getMessage();
}
echo $emailreturn;
Hope this will work.
Here is a complete example with output. psql (10.1, server 9.5.10).
You get 58, not some value less than 30.
Remove age() function, solved the problem that previous post mentioned.
drop table t;
create table t(
d1 date
);
insert into t values(current_date - interval '58 day');
select d1
, current_timestamp - d1::timestamp date_diff
, date_part('day', current_timestamp - d1::timestamp)
from t;
d1 | date_diff | date_part
------------+-------------------------+-----------
2018-05-21 | 58 days 21:41:07.992731 | 58
I prefer this as an extension method:
public static async Task<IEnumerable<T>> WhenAll<T>(this IEnumerable<Task<T>> tasks)
{
return await Task.WhenAll(tasks);
}
So that it is usable with method chaining:
var inputs = await events
.Select(async ev => await ProcessEventAsync(ev))
.WhenAll()
SELECT DATEDIFF(day, '2005-12-31 23:59:59.9999999', '2006-01-01 00:00:00.0000000');
use:
import six
if isinstance(obj, six.text_type)
inside the six library it is represented as:
if PY3:
string_types = str,
else:
string_types = basestring,
Use WebElement.send_keys
method to simulate key typing.
name
in the code (Username
, Password
) does not match actual name
of the elements (username
, password
).
username = browser.find_element_by_name('username')
username.send_keys('user1')
password = browser.find_element_by_name('password')
password.send_keys('secret')
form = browser.find_element_by_id('loginForm')
form.submit()
# OR browser.find_element_by_id('submit').click()
What about the following for doing a range incremented by days:
for d in map( lambda x: startDate+datetime.timedelta(days=x), xrange( (stopDate-startDate).days ) ):
# Do stuff here
For a generic version:
for d in map( lambda x: startTime+x*stepTime, xrange( (stopTime-startTime).total_seconds() / stepTime.total_seconds() ) ):
# Do stuff here
Note that .total_seconds() is only supported after python 2.7 If you are stuck with an earlier version you can write your own function:
def total_seconds( td ):
return float(td.microseconds + (td.seconds + td.days * 24 * 3600) * 10**6) / 10**6
I know that question is about JSONArray but here's example I've found useful where you don't need to use JSONArray to extract objects from JSONObject.
import org.json.simple.JSONObject;
import org.json.simple.JSONValue;
String jsonStr = "{\"types\":[1, 2]}";
JSONObject json = (JSONObject) JSONValue.parse(jsonStr);
List<Long> list = (List<Long>) json.get("types");
if (list != null) {
for (Long s : list) {
System.out.println(s);
}
}
Works also with array of strings
cat >> filename
This is text, perhaps pasted in from some other source.
Or else entered at the keyboard, doesn't matter.
^D
Essentially, you can dump any text you want into the file. CTRL-D sends an end-of-file signal, which terminates input and returns you to the shell.
Xcode 8b4 Swift 3.0
let paths = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory, FileManager.SearchPathDomainMask.userDomainMask, true)
I used this method that I created when I was 14 years old.
public static int gcd (int a, int b) {
int s = 1;
int ia = Math.abs(a);//<-- turns to absolute value
int ib = Math.abs(b);
if (a == b) {
s = a;
}else {
while (ib != ia) {
if (ib > ia) {
s = ib - ia;
ib = s;
}else {
s = ia - ib;
ia = s;
}
}
}
return s;
}
if you downloaded redis yourself (not apt-get install redis-server) and then edited the redis.conf with
the above suggestions, make sure your start redis with the config
like so: ./src/redis-server redis.conf
Update (2017/01/05):
GitHub has published an update that allows you now to search within commit messages from within their UI. See blog post for more information.
I had the same question and contacted someone GitHub yesterday:
Since they switched their search engine to Elasticsearch it's not possible to search for commit messages using the GitHub UI. But that feature is on the team's wishlist.
Unfortunately there's no release date for that function right now.
I had the same problem with a bunch of assembly files after moving the project to another solution.
For me, the web.config
file was trying to add this assembly:
<add assembly="System.Web.Helpers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
Thought the reference in the project was pointing towards version 3.0.0.0
(click on the reference and scroll to the bottom of the properties). Hence I just changed the reference version in the web.config
file.
I don´t know if this was just a bug of some sort. The problem with adding all the other references was that the references appeared in the config file but it wasn't actually referenced at all in the project (inside the solution explorer) and the needed files were not copied with the rest of the project files, probably due to not being "copy local = true"
Now, I wasn´t able to find these assemblies in the addable assemblies (by right clicking the reference and trying to add them from the assemblies or extensions). Instead I created a new MVC solution which added all the assemblies and references I needed, and finding them under the new projects references in the solution explorer and finding their path in the properties window for the reference.
Then I just copied the libraries I needed into the other project and referenced them.
in your setting.py
file replace DIRS
in TEMPLATES
array with this
'DIRS': []
to this
'DIRS': [os.path.join(BASE_DIR, 'templates')],
but 1 think u need to know is that
you have to make a folder with name templates
and it should on the root path otherwise u have to change the DIRS
value
Maybe in your data source add a column which does a sumif over all rows.
Not sure what your data looks like but something like =(sumif([column holding pivot row heads),[current row head value in row], probability column)>.2).
This will give you a True when the pivot table will show >20%.
Then add a filter on your pivot table on this column for TRUE values
In PowerShell v5.1 this is slightly different compared to v5. According to MS documentation, it has to have a -Path
parameter to specify the archive file path.
Expand-Archive -Path Draft.Zip -DestinationPath C:\Reference
Or else, this can be an actual path:
Expand-Archive -Path c:\Download\Draft.Zip -DestinationPath C:\Reference
I have a list of guidelines at http://soaprobe.blogspot.co.uk/2012/10/soa-rest-service-naming-guideline.html which we have used in prod. Guidelines are always debatable... I think consistency is sometimes more important than getting things perfect (if there is such a thing).
The answers above were all assuming your Python distribution would have some third-party libraries in order to achieve the "one liner python ftpd" goal, but that is not the case of what @zio was asking. Also, SimpleHTTPServer involves web broswer for downloading files, it's not quick enough.
Python can't do ftpd by itself, but you can use netcat, nc
:
nc
is basically a built-in tool from any UNIX-like systems (even embedded systems), so it's perfect for "quick and temporary way to transfer files".
Step 1, on the receiver side, run:
nc -l 12345 | tar -xf -
this will listen on port 12345, waiting for data.
Step 2, on the sender side:
tar -cf - ALL_FILES_YOU_WANT_TO_SEND ... | nc $RECEIVER_IP 12345
You can also put pv
in the middle to monitor the progress of transferring:
tar -cf - ALL_FILES_YOU_WANT_TO_SEND ...| pv | nc $RECEIVER_IP 12345
After the transferring is finished, both sides of nc
will quit automatically, and job done.
Thanks HansUp for your answer, it is very helpful and it works!
I found three patterns working in Access, yours is the best, because it works in all cases.
INNER JOIN, your variant. I will call it "closed set pattern". It is possible to join more than two tables to the same table with good performance only with this pattern.
SELECT C_Name, cr.P_FirstName+" "+cr.P_SurName AS ClassRepresentativ, cr2.P_FirstName+" "+cr2.P_SurName AS ClassRepresentativ2nd
FROM
((class
INNER JOIN person AS cr
ON class.C_P_ClassRep=cr.P_Nr
)
INNER JOIN person AS cr2
ON class.C_P_ClassRep2nd=cr2.P_Nr
)
;
INNER JOIN "chained-set pattern"
SELECT C_Name, cr.P_FirstName+" "+cr.P_SurName AS ClassRepresentativ, cr2.P_FirstName+" "+cr2.P_SurName AS ClassRepresentativ2nd
FROM person AS cr
INNER JOIN ( class
INNER JOIN ( person AS cr2
) ON class.C_P_ClassRep2nd=cr2.P_Nr
) ON class.C_P_ClassRep=cr.P_Nr
;
CROSS JOIN with WHERE
SELECT C_Name, cr.P_FirstName+" "+cr.P_SurName AS ClassRepresentativ, cr2.P_FirstName+" "+cr2.P_SurName AS ClassRepresentativ2nd
FROM class, person AS cr, person AS cr2
WHERE class.C_P_ClassRep=cr.P_Nr AND class.C_P_ClassRep2nd=cr2.P_Nr
;
Be aware of the single quotes for the string format. This doesn't work:
Content="{Binding PlannedDateTime, StringFormat={}{0:yy.MM.dd HH:mm}}"
while this does:
Content="{Binding PlannedDateTime, StringFormat='{}{0:yy.MM.dd HH:mm}'}"
This is a very c# type of code:
var bks: Book[] = new Book[2];
In Javascript / Typescript you don't allocate memory up front like that, and that means something completely different. This is how you would do what you want to do:
var bks: Book[] = [];
bks.push(new Book());
bks[0].Author = "vamsee";
bks[0].BookId = 1;
return bks.length;
Now to explain what new Book[2];
would mean. This would actually mean that call the new operator on the value of Book[2]. e.g.:
Book[2] = function (){alert("hey");}
var foo = new Book[2]
and you should see hey. Try it
Embed the video player and use CSS to hide the video. If you do it properly you may even be able to hide only the video and not the controls below it.
However, I'd recommend against it, because it will be a violation of YouTube TOS. Use your own server instead if you really want to play only audio.
I just recompiled curl with configure options pointing to the openssl 1.0.2g library folder and include folder, and I still get this message. When I do ldd on curl, it does not show that it uses either libcrypt.so
or libssl.so
, so I assume this must mean that even though the make
and make install
succeeded without errors, nevertheless curl does not have HTTPS support? Configure and make was as follows:
./configure --prefix=/local/scratch/PACKAGES/local --with-ssl=/local/scratch/PACKAGES/local/openssl/openssl-1.0.2g --includedir=/local/scratch/PACKAGES/local/include/openssl/openssl-1.0.2g
make
make test
make install
I should mention that libssl.so.1
is in /local/scratch/PACKAGES/local/lib
. It is unclear whether the --with-ssl
option should point there or to the directory where the openssl install placed the openssl.cnf file. I chose the latter. But if it were supposed to be the former, the make should have failed with an error that it couldn't find the library.
There is no notion of method overloading in Python. But you can achieve a similar effect by specifying optional and keyword arguments
this.Controls.Find(name, searchAllChildren) doesn't find ToolStripItem because ToolStripItem is not a Control
using SWF = System.Windows.Forms;
using NUF = NUnit.Framework;
namespace workshop.findControlTest {
[NUF.TestFixture]
public class FormTest {
[NUF.Test]public void Find_menu() {
// == prepare ==
var fileTool = new SWF.ToolStripMenuItem();
fileTool.Name = "fileTool";
fileTool.Text = "File";
var menuStrip = new SWF.MenuStrip();
menuStrip.Items.Add(fileTool);
var form = new SWF.Form();
form.Controls.Add(menuStrip);
// == execute ==
var ctrl = form.Controls.Find("fileTool", true);
// == not found! ==
NUF.Assert.That(ctrl.Length, NUF.Is.EqualTo(0));
}
}
}
Steps to resolve the issue:
1.Open your solution/Web Application in VS 2012 in administrator mode.
2.Go to IIS and Note down the settings for your application (e.g.Virtual directory name, Physical Path, Authentication setting and App pool used).
3.Remove (right click and select Remove) your application from Default Web Site. Refresh IIS.
4.Go back to VS 2012 and open settings (right click and select properties) for your web application.
5.Select Web.In Servers section make sure you have selected "Use Local IIS Web Server".
6.In Project Url textbox enter your application path (http://localhost
/Application Path). Click on Create Virtual Directory.
7.Go to IIS and apply settings noted in step 2. Refresh IIS.
8.Go to VS 2012 and set this project as startup Project with appropriate page as startup page.
9.Click run button to start project in debug mode.
This resolved issue for me for web application which was migrated from VS 2010 to 2012.Hope this helps anyone looking for specific issue.
My machine configuration is: IIS 7.5.7600.16385
VS 2012 Professional
Windows 7 Enterprise (Version 6.1 - Build 7601:Service Pack 1)
one liner
var date = DateTime.Now.Date.Add(new TimeSpan(4, 30, 0));
would bring back todays date with a time of 4:30:00, replace DateTime.Now with any date object
System.Data.SqlClient
is the .NET Framework Data Provider for SQL Server. ie .NET library for SQL Server.
I don't know where providerName=SqlServer
comes from. Could you be getting this confused with the provider keyword in your connection string? (I know I was :) )
In the web.config you should have the System.Data.SqlClient
as the value of the providerName attribute. It is the .NET Framework Data Provider you are using.
<connectionStrings>
<add
name="LocalSqlServer"
connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true"
providerName="System.Data.SqlClient"
/>
</connectionStrings>
See http://msdn.microsoft.com/en-US/library/htw9h4z3(v=VS.80).aspx
I found the best solution for this problem by using ON with $(document).
$(document).on('click', '#yourid', function() { alert("hello"); });
for id start with see below:
$(document).on('click', 'div[id^="start"]', function() {
alert ('hello'); });
finally after 1 week I not need to add onclick triger. I hope this will help many people
Didn't work with ODBC-Bridge for me too. I got the way around to initialize ODBC connection using ODBC driver.
import java.sql.*;
public class UserLogin
{
public static void main(String[] args)
{
try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
// C:\\databaseFileName.accdb" - location of your database
String url = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb, *.accdb)};DBQ=" + "C:\\emp.accdb";
// specify url, username, pasword - make sure these are valid
Connection conn = DriverManager.getConnection(url, "username", "password");
System.out.println("Connection Succesfull");
}
catch (Exception e)
{
System.err.println("Got an exception! ");
System.err.println(e.getMessage());
}
}
}
Option Explicit
Const ConnectionStrngAccessPW As String = _"Provider=Microsoft.ACE.OLEDB.12.0;
Data Source=C:\Users\BARON\Desktop\Test_DB-PW.accdb;
Jet OLEDB:Database Password=123pass;"
Const ConnectionStrngAccess As String = _"Provider=Microsoft.ACE.OLEDB.12.0;
Data Source=C:\Users\BARON\Desktop\Test_DB.accdb;
Persist Security Info=False;"
'C:\Users\BARON\Desktop\Test.accdb
Sub ModifyingExistingDataOnAccessDB()
Dim TableConn As ADODB.Connection
Dim TableData As ADODB.Recordset
Set TableConn = New ADODB.Connection
Set TableData = New ADODB.Recordset
TableConn.ConnectionString = ConnectionStrngAccess
TableConn.Open
On Error GoTo CloseConnection
With TableData
.ActiveConnection = TableConn
'.Source = "SELECT Emp_Age FROM Roster WHERE Emp_Age > 40;"
.Source = "Roster"
.LockType = adLockOptimistic
.CursorType = adOpenForwardOnly
.Open
On Error GoTo CloseRecordset
Do Until .EOF
If .Fields("Emp_Age").Value > 40 Then
.Fields("Emp_Age").Value = 40
.Update
End If
.MoveNext
Loop
.MoveFirst
MsgBox "Update Complete"
End With
CloseRecordset:
TableData.CancelUpdate
TableData.Close
CloseConnection:
TableConn.Close
Set TableConn = Nothing
Set TableData = Nothing
End Sub
Sub AddingDataToAccessDB()
Dim TableConn As ADODB.Connection
Dim TableData As ADODB.Recordset
Dim r As Range
Set TableConn = New ADODB.Connection
Set TableData = New ADODB.Recordset
TableConn.ConnectionString = ConnectionStrngAccess
TableConn.Open
On Error GoTo CloseConnection
With TableData
.ActiveConnection = TableConn
.Source = "Roster"
.LockType = adLockOptimistic
.CursorType = adOpenForwardOnly
.Open
On Error GoTo CloseRecordset
Sheet3.Activate
For Each r In Range("B3", Range("B3").End(xlDown))
MsgBox "Adding " & r.Offset(0, 1)
.AddNew
.Fields("Emp_ID").Value = r.Offset(0, 0).Value
.Fields("Emp_Name").Value = r.Offset(0, 1).Value
.Fields("Emp_DOB").Value = r.Offset(0, 2).Value
.Fields("Emp_SOD").Value = r.Offset(0, 3).Value
.Fields("Emp_EOD").Value = r.Offset(0, 4).Value
.Fields("Emp_Age").Value = r.Offset(0, 5).Value
.Fields("Emp_Gender").Value = r.Offset(0, 6).Value
.Update
Next r
MsgBox "Update Complete"
End With
CloseRecordset:
TableData.Close
CloseConnection:
TableConn.Close
Set TableConn = Nothing
Set TableData = Nothing
End Sub
A panel expands to a span (or a div), with it's content within it. A placeholder is just that, a placeholder that's replaced by whatever you put in it.
Try this:
$('#parent').on('click', '#child', function() {
// Code
});
From the $.on()
documentation:
Event handlers are bound only to the currently selected elements; they must exist on the page at the time your code makes the call to
.on()
.
Your #child
element doesn't exist when you call $.on()
on it, so the event isn't bound (unlike $.live()
). #parent
, however, does exist, so binding the event to that is fine.
The second argument in my code above acts as a 'filter' to only trigger if the event bubbled up to #parent
from #child
.
You can add PresentationCore.dll more conveniently by editing the project file. Add the following code into your csproj file:
<ItemGroup>
<FrameworkReference Include="Microsoft.WindowsDesktop.App" />
</ItemGroup>
In your solution explorer, you now should see this framework listed, now. With that, you then can also refer to the classes provided by PresentationCore.dll.
I prefer to use objcopy to convert to hex, then use diff.
Since this question was asked in 2010, there has been real simplification in how to do simple multithreading with Python with map and pool.
The code below comes from an article/blog post that you should definitely check out (no affiliation) - Parallelism in one line: A Better Model for Day to Day Threading Tasks. I'll summarize below - it ends up being just a few lines of code:
from multiprocessing.dummy import Pool as ThreadPool
pool = ThreadPool(4)
results = pool.map(my_function, my_array)
Which is the multithreaded version of:
results = []
for item in my_array:
results.append(my_function(item))
Description
Map is a cool little function, and the key to easily injecting parallelism into your Python code. For those unfamiliar, map is something lifted from functional languages like Lisp. It is a function which maps another function over a sequence.
Map handles the iteration over the sequence for us, applies the function, and stores all of the results in a handy list at the end.
Implementation
Parallel versions of the map function are provided by two libraries:multiprocessing, and also its little known, but equally fantastic step child:multiprocessing.dummy.
multiprocessing.dummy
is exactly the same as multiprocessing module, but uses threads instead (an important distinction - use multiple processes for CPU-intensive tasks; threads for (and during) I/O):
multiprocessing.dummy replicates the API of multiprocessing, but is no more than a wrapper around the threading module.
import urllib2
from multiprocessing.dummy import Pool as ThreadPool
urls = [
'http://www.python.org',
'http://www.python.org/about/',
'http://www.onlamp.com/pub/a/python/2003/04/17/metaclasses.html',
'http://www.python.org/doc/',
'http://www.python.org/download/',
'http://www.python.org/getit/',
'http://www.python.org/community/',
'https://wiki.python.org/moin/',
]
# Make the Pool of workers
pool = ThreadPool(4)
# Open the URLs in their own threads
# and return the results
results = pool.map(urllib2.urlopen, urls)
# Close the pool and wait for the work to finish
pool.close()
pool.join()
And the timing results:
Single thread: 14.4 seconds
4 Pool: 3.1 seconds
8 Pool: 1.4 seconds
13 Pool: 1.3 seconds
Passing multiple arguments (works like this only in Python 3.3 and later):
To pass multiple arrays:
results = pool.starmap(function, zip(list_a, list_b))
Or to pass a constant and an array:
results = pool.starmap(function, zip(itertools.repeat(constant), list_a))
If you are using an earlier version of Python, you can pass multiple arguments via this workaround).
(Thanks to user136036 for the helpful comment.)
The pylab examples page is a very useful source. The example relevant for your question:
http://matplotlib.sourceforge.net/mpl_examples/pylab_examples/scatter_demo2.py http://matplotlib.sourceforge.net/users/screenshots.html#scatter-demo
Why use a dropdown at all? The only way the user will see your explanatory text is by blindly hovering over one of the options.
I think it would be preferable to use a radio button group, and next to each item, put a tooltip icon indicating additional information, as well as displaying it after selection (like you currently have it).
I realize this doesn't exactly solve your problem, but I don't see the point in struggling with an html element that's notorious for its inflexibility when you could just use one that's better suited in the first place.
I solved this rather easily (without adding a method) so i'll share:
use Doctrine\Common\Collections\Criteria;
$repository->matching( Criteria::create()->where( Criteria::expr()->neq('id', 1) ) );
By the way, i'm using the Doctrine ORM module from within Zend Framework 2 and i'm not sure whether this would be compatible in any other case.
In my case, i was using a form element configuration like this: to show all roles except "guest" in a radio button array.
$this->add(array(
'type' => 'DoctrineModule\Form\Element\ObjectRadio',
'name' => 'roles',
'options' => array(
'label' => _('Roles'),
'object_manager' => $this->getEntityManager(),
'target_class' => 'Application\Entity\Role',
'property' => 'roleId',
'find_method' => array(
'name' => 'matching',
'params' => array(
'criteria' => Criteria::create()->where(
Criteria::expr()->neq('roleId', 'guest')
),
),
),
),
));
I agree with Aamir that the submission arrow.m from Erik Johnson on the MathWorks File Exchange is a very nice option. You can use it to illustrate the different methods of vector addition like so:
Tip-to-tail method:
o = [0 0 0]; %# Origin
a = [2 3 5]; %# Vector 1
b = [1 1 0]; %# Vector 2
c = a+b; %# Resultant
arrowStarts = [o; a; o]; %# Starting points for arrows
arrowEnds = [a; c; c]; %# Ending points for arrows
arrow(arrowStarts,arrowEnds); %# Plot arrows
Parallelogram method:
o = [0 0 0]; %# Origin
a = [2 3 5]; %# Vector 1
b = [1 1 0]; %# Vector 2
c = a+b; %# Resultant
arrowStarts = [o; o; o]; %# Starting points for arrows
arrowEnds = [a; b; c]; %# Ending points for arrows
arrow(arrowStarts,arrowEnds); %# Plot arrows
hold on;
lineX = [a(1) b(1); c(1) c(1)]; %# X data for lines
lineY = [a(2) b(2); c(2) c(2)]; %# Y data for lines
lineZ = [a(3) b(3); c(3) c(3)]; %# Z data for lines
line(lineX,lineY,lineZ,'Color','k','LineStyle',':'); %# Plot lines
Quite logical the difference between PUT & PATCH w.r.t sending full & partial data for replacing/updating respectively. However, just couple of points as below
I never use NULL in my C or C++ code. 0
works just fine, as does if (ptrname)
. Any competent C or C++ programmer should know what those do.
If you are having this issue and you are performing a populate somewhere along the lines, see this Mongoose issue.
Update to Mongoose 4.0 and the issue has been fixed.
the ideal way is to
{{ something|safe }}
than completely turning off auto escaping.
The problem is that you're not initializing the pointer. You've created a pointer to "anywhere you want"—which could be the address of some other variable, or the middle of your code, or some memory that isn't mapped at all.
You need to create an int
variable somewhere in memory for the int *
variable to point at.
Your second example does this, but it does other things that aren't relevant here. Here's the simplest thing you need to do:
int main(){
int variable;
int *ptr = &variable;
*ptr = 20;
printf("%d", *ptr);
return 0;
}
Here, the int
variable isn't initialized—but that's fine, because you're just going to replace whatever value was there with 20
. The key is that the pointer is initialized to point to the variable
. In fact, you could just allocate some raw memory to point to, if you want:
int main(){
void *memory = malloc(sizeof(int));
int *ptr = (int *)memory;
*ptr = 20;
printf("%d", *ptr);
free(memory);
return 0;
}
Indeed you cannot save changes inside a foreach
loop in C# using Entity Framework.
context.SaveChanges()
method acts like a commit on a regular database system (RDMS).
Just make all changes (which Entity Framework will cache) and then save all of them at once calling SaveChanges()
after the loop (outside of it), like a database commit command.
This works if you can save all changes at once.
In c++ you could use std::string to get repeated character
printf("%s",std::string(count,char).c_str());
For example:
printf("%s",std::string(5,'a').c_str());
output:
aaaaa
Format to send a WhatsApp message to a specific number (updated Nov 2018)
<a href="https://wa.me/whatsappphonenumber/?text=urlencodedtext"></a>
where
whatsappphonenumber is a full phone number in international format
urlencodedtext is the URL-encoded pre-filled message.
Create a link with a pre-filled message that will automatically appear in the text field of a chat, to be sent to a specific number
Send I am interested in your car for sale to +001-(555)1234567
https://wa.me/15551234567?text=I%20am%20interested%20in%20your%20car%20for%20sale
Note :
Use: https://wa.me/15551234567
Don't use: https://wa.me/+001-(555)1234567
Create a link with just a pre-filled message that will automatically appear in the text field of a chat, number will be chosen by the user
Send I am enquiring about the apartment listing
https://wa.me/?text=I%20am%20enquiring%20about%20the%20apartment%20listing
After clicking on the link, user will be shown a list of contacts they can send the pre-filled message to.
For more information, see https://www.whatsapp.com/faq/en/general/26000030
--
P.S : Older format (before updation) for reference
<a href="https://api.whatsapp.com/send?phone=whatsappphonenumber&text=urlencodedtext"></a>
Try this pattern:
public static PricesResponse getResponse(EventRequestRaw request) {
// String urlParameters = "param1=a¶m2=b¶m3=c";
String urlParameters = Piping.serialize(request);
HttpURLConnection conn = RestClient.getPOSTConnection(endPoint, urlParameters);
PricesResponse response = null;
try {
// POST
OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream());
writer.write(urlParameters);
writer.flush();
// RESPONSE
BufferedReader reader = new BufferedReader(new InputStreamReader((conn.getInputStream()), StandardCharsets.UTF_8));
String json = Buffering.getString(reader);
response = (PricesResponse) Piping.deserialize(json, PricesResponse.class);
writer.close();
reader.close();
} catch (Exception e) {
e.printStackTrace();
}
conn.disconnect();
System.out.println("PricesClient: " + response.toString());
return response;
}
public static HttpURLConnection getPOSTConnection(String endPoint, String urlParameters) {
return RestClient.getConnection(endPoint, "POST", urlParameters);
}
public static HttpURLConnection getConnection(String endPoint, String method, String urlParameters) {
System.out.println("ENDPOINT " + endPoint + " METHOD " + method);
HttpURLConnection conn = null;
try {
URL url = new URL(endPoint);
conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod(method);
conn.setDoOutput(true);
conn.setRequestProperty("Content-Type", "text/plain");
} catch (IOException e) {
e.printStackTrace();
}
return conn;
}
Outlook Bitness registry key does not exist on my machine.
One way to determine Outlook Bitness is by examining Outlook.exe, itself and determine if it is 32bit or 64bit.
Specifically, you can check the [IMAGE_FILE_HEADER.Machine][1] type and this will return a value indicating processor type.
For an excellent background of this discussion, on reading the PE Header of a file read this (outdated link), which states;
The IMAGE_NT_HEADERS structure is the primary location where specifics of the PE file are stored. Its offset is given by the e_lfanew field in the IMAGE_DOS_HEADER at the beginning of the file. There are actually two versions of the IMAGE_NT_HEADER structure, one for 32-bit executables and the other for 64-bit versions. The differences are so minor that I'll consider them to be the same for the purposes of this discussion. The only correct, Microsoft-approved way of differentiating between the two formats is via the value of the Magic field in the IMAGE_OPTIONAL_HEADER (described shortly).
An IMAGE_NT_HEADER is comprised of three fields:
typedef struct _IMAGE_NT_HEADERS {
DWORD Signature;
IMAGE_FILE_HEADER FileHeader;
IMAGE_OPTIONAL_HEADER32 OptionalHeader;
} IMAGE_NT_HEADERS32, *PIMAGE_NT_HEADERS32;
and you can get the c# code here.
The Magic field is at the start of the IMAGE_OPTIONAL_HEADER structure, 2 bytes at offset 24 from the start of the _IMAGE_NT_HEADERS. It has values of 0x10B for 32-bit and 0x20B for 64-bit.
PHP is evaluated at the server; javascript is evaluated at the client/browser, thus you can't call a PHP function from javascript directly. But you can issue an HTTP request to the server that will activate a PHP function, with AJAX.
Delete all files under the .m2 repository folder and rebuild the project.
Take a look at your code :
getUsers(): Observable<User[]> {
return Observable.create(observer => {
this.http.get('http://users.org').map(response => response.json();
})
}
and code from https://angular.io/docs/ts/latest/tutorial/toh-pt6.html (BTW. really good tutorial, you should check it out)
getHeroes(): Promise<Hero[]> {
return this.http.get(this.heroesUrl)
.toPromise()
.then(response => response.json().data as Hero[])
.catch(this.handleError);
}
The HttpService inside Angular2 already returns an observable, sou don't need to wrap another Observable around like you did here:
return Observable.create(observer => {
this.http.get('http://users.org').map(response => response.json()
Try to follow the guide in link that I provided. You should be just fine when you study it carefully.
---EDIT----
First of all WHERE you log the this.users variable? JavaScript isn't working that way. Your variable is undefined and it's fine, becuase of the code execution order!
Try to do it like this:
getUsers(): void {
this.userService.getUsers()
.then(users => {
this.users = users
console.log('this.users=' + this.users);
});
}
See where the console.log(...) is!
Try to resign from toPromise() it's seems to be just for ppl with no RxJs background.
Catch another link: https://scotch.io/tutorials/angular-2-http-requests-with-observables Build your service once again with RxJs observables.
If I understand you right, we talk about a text file attachment. Thats unfortunate because if it was the email's message body, you could always use "\r\n", referring to http://www.faqs.org/rfcs/rfc822.html
But as it's an attachment, you must live with system differences. If I were in your shoes, I would choose one of those options:
a) only support windows clients by using "\r\n" as line end.
b) provide two attachment files, one with linux format and one with windows format.
c) I don't know if the attachment is to be read by people or machines, but if it is people I would consider attaching an HTML file instead of plain text. more portable and much prettier, too :)
I installed GitHubDesktop
on Windows 10 and git.exe
is located there:
C:\Users\john\AppData\Local\GitHubDesktop\app-0.7.2\resources\app\git\cmd\git.exe
Just use div { padding: 20px; }
and substract 40px
from your original div
width.
Like Philip Wills pointed out, you can also use box-sizing
instead of substracting 40px
:
div {
padding: 20px;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
The -moz-box-sizing
is for Firefox.
I couldn't get it to work with .keypress(), but it worked with the .keydown() function like this:
$(document).keydown(function(e) {
if(e.key == "c" && e.ctrlKey) {
console.log('ctrl+c was pressed');
}
});
You need to get hold of the axes themselves. Probably the cleanest way is to change your last row:
lm = sns.lmplot('X','Y',df,col='Z',sharex=False,sharey=False)
Then you can get hold of the axes objects (an array of axes):
axes = lm.axes
After that you can tweak the axes properties
axes[0,0].set_ylim(0,)
axes[0,1].set_ylim(0,)
creates:
you can also use a for each loop. I think it is simpler to read.
int occurrences = 0;
for(char c : yourString.toCharArray()){
if(c == '$'){
occurrences++;
}
}
This CAN be done with pure html and css. It may not be the best way but we all have different limitations. There are 3 ways that could be useful depending on what your specific circumstances are.
#imagehover td:hover::after{_x000D_
content: " ";_x000D_
white-space: pre;_x000D_
background-image: url("http://www.google.com/images/srpr/logo4w.png");_x000D_
position: relative;_x000D_
left: 5px;_x000D_
top: 5px;_x000D_
font-size: 20px;_x000D_
background-color: transparent;_x000D_
background-position: 0px 0px;_x000D_
background-size: 60px 20px;_x000D_
background-repeat: no-repeat;_x000D_
_x000D_
}_x000D_
_x000D_
_x000D_
#imagehover table, #imagehover th, #imagehover td {_x000D_
border: 0px;_x000D_
border-spacing: 0px;_x000D_
}
_x000D_
<a href="https://www.google.com">_x000D_
<table id="imagehover" style="width:50px;height:10px;z-index:9999;position:absolute" cellspacing="0">_x000D_
<tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>_x000D_
<tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>_x000D_
<tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>_x000D_
<tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>_x000D_
<tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>_x000D_
<tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>_x000D_
<tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>_x000D_
<tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>_x000D_
<tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>_x000D_
<tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>_x000D_
<tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>_x000D_
_x000D_
</table>_x000D_
Google</a>
_x000D_
#googleLink{_x000D_
_x000D_
cursor: url(https://winter-bush-d06c.sto.workers.dev/cursor-extern.php?id=98272),url(https://9dc1a5c00e8109665645209c2d036b1c.cloudflareworkers.com/cursor-extern.php?id=98272),auto;_x000D_
_x000D_
}
_x000D_
<a href="https://www.google.com" id="googleLink">Google</a>
_x000D_
<a href="https://www.google.com" title="??" alt="??">Google</a>
_x000D_
Beside "readlink -f" , another commonly used command:
$find /the/long/path/but/I/can/use/TAB/to/auto/it/to/ -name myfile /the/long/path/but/I/can/use/TAB/to/auto/it/to/myfile $
This also give the full path and file name at console
Off-topic: This method just gives relative links, not absolute. The readlink -f
command is the right one.
Add .hide-text class to your span that has the text
.hide-text{
display:none;
}
or make the text transparent
.hide-text{
color:rgba(0,0,0,0);
}
use according to your use case.
The classpath in this context is exactly what it is in the general context: anywhere the VM knows it can find classes to be loaded, and resources as well (such as output.vm in your case).
I'd understand Velocity expects to find a file named output.vm anywhere in "no package". This can be a JAR, regular folder, ... The root of any of the locations in the application's classpath.
Leaving a reply (and an answer to the question title), For the future googlers...
You can use .length
to get the length of a string.
var x = 'Mozilla'; var empty = '';
console.log('Mozilla is ' + x.length + ' code units long');
/*"Mozilla is 7 code units long" */
console.log('The empty string has a length of ' + empty.length);
/*"The empty string has a length of 0" */
If you intend to get the length of a textarea
say id="txtarea"
then you can use the following code.
txtarea = document.getElementById('txtarea');
console.log(txtarea.value.length);
You should be able to get away with using this with BMP Unicode symbols. If you want to support "non BMP Symbols" like (), then its an edge case, and you need to find some work around.
If we look at MS SQL Server's
system tables, their names as assigned by Microsoft are in plural
.
The Oracle's system tables are named in singular
. Although a few of them are plural.
Oracle recommends plural for user-defined table names.
That doesn't make much sense that they recommend one thing and follow another.
That the architects at these two software giants have named their tables using different conventions, doesn't make much sense either... After all, what are these guys ... PhD's?
I do remember in academia, the recommendation was singular.
For example, when we say:
select OrderHeader.ID FROM OrderHeader WHERE OrderHeader.Reference = 'ABC123'
maybe b/c each ID
is selected from a particular single row ...?
I know I'm late to the party but just wanted to mention that the Jumpout II theme really is amazing.. I have a lot of themes and this one really is great for a # of reasons..
it handles glare very well (yes even pure black on matte screens can produce glare, unfortunately my new matte monitor - has a more "glary" coating than my old one).. this is a grayish-black background
it has enough colors that you can easily see read even dense code - some themes that look nice at first use too much of one color and it makes dense code harder to digest
the comments are all gray, this is even better than dark green which is my 2nd favorite choice.. it really helps the code pop out..
so basically this is a great anti-glare, anti-dense-code theme
p.s. please note I change the font of all the themes I use to Consolas 11 or 12 depending on the monitor. Consolas I find to be the best programming font out there. It looks great, easy to read and very well suited to LCD anti-aliasing. I tried so many programming fonts but I always come back to this one quickly. And it is not too narrow.. I'm not in the narrow camp, I believe narrow font aficionados don't program with ultra wide monitors - maybe program on a macbook or something just as bad :)
p.p.s I know solarized is supposed to be some kind of ultimate, magical, life-enhancing nirvana-inducing theme but I just don't get it.. I tried but failed to find it anything but annoying