I was recently looking for this very same solution and managed to find a simple one without assigning specific variables for the last selected item and the new selected item. And this question, although very helpful, didn't provide the solution I needed. This solved my problem, I hope it solves yours and others. Thanks.
addItem(Object) takes an object. The default JComboBox renderer calls toString() on that object and that's what it shows as the label.
So, don't pass in a String to addItem(). Pass in an object whose toString() method returns the label you want. The object can contain any number of other data fields also.
Try passing this into your combobox and see how it renders. getSelectedItem() will return the object, which you can cast back to Widget to get the value from.
public final class Widget {
private final int value;
private final String label;
public Widget(int value, String label) {
this.value = value;
this.label = label;
}
public int getValue() {
return this.value;
}
public String toString() {
return this.label;
}
}
DefaultComboBoxModel dml= new DefaultComboBoxModel();
for (int i = 0; i < <ArrayList>.size(); i++) {
dml.addElement(<ArrayList>.get(i).getField());
}
<ComboBoxName>.setModel(dml);
Understandable code.Edit<>
with type as required.
Not an answer to the original question, but an example to the how-to-make-reusable and working custom renderers without breaking MVC :-)
// WRONG
public class DataWrapper {
final Data data;
final String description;
public DataWrapper(Object data, String description) {
this.data = data;
this.description = description;
}
....
@Override
public String toString() {
return description;
}
}
// usage
myModel.add(new DataWrapper(data1, data1.getName());
It is wrong in a MVC environment, because it is mixing data and view: now the model doesn't contain the data but a wrapper which is introduced for view reasons. That's breaking separation of concerns and encapsulation (every class interacting with the model needs to be aware of the wrapped data).
The driving forces for breaking of rules were:
As in Swing a custom renderer is the small coin designed to accomodate for custom visual representation, a default manager which can't cope is ... broken. Tweaking design just to accommodate for such a crappy default is the wrong way round, kind of upside-down. The correct is, to implement a coping manager.
While re-use is fine, doing so at the price of breaking the basic architecture is not a good bargin.
We have a problem in the presentation realm, let's solve it in the presentation realm with the elements designed to solve exactly that problem. As you might have guessed, SwingX already has such a solution :-)
In SwingX, the provider of a string representation is called StringValue, and all default renderers take such a StringValue to configure themselves:
StringValue sv = new StringValue() {
@Override
public String getString(Object value) {
if (value instanceof Data) {
return ((Data) value).getSomeProperty();
}
return TO_STRING.getString(value);
}
};
DefaultListRenderer renderer = new DefaultListRenderer(sv);
As the defaultRenderer is-a StringValue (implemented to delegate to the given), a well-behaved implementation of KeySelectionManager now can delegate to the renderer to find the appropriate item:
public BetterKeySelectionManager implements KeySelectionManager {
@Override
public int selectionForKey(char ch, ComboBoxModel model) {
....
if (getCellRenderer() instance of StringValue) {
String text = ((StringValue) getCellRenderer()).getString(model.getElementAt(row));
....
}
}
}
Outlined the approach because it is easily implementable even without using SwingX, simply define implement something similar and use it:
All except the string provider is reusable as-is (that is exactly one implemenation of the custom renderer and the keySelectionManager). There can be general implementations of the string provider, f.i. those formatting value or using bean properties via reflection. And all without breaking basic rules :-)
setSelectedItem("banana")
. You could have found it yourself by just reading the javadoc.
Edit: since you changed the question, I'll change my answer.
If you want to select the item having the "banana" label, then you have two solutions:
setSelectedItem(theFoundItem)
(or setSelectedIndex(theFoundIndex)
)equals
and hashCode
in ComboItem
so that two ComboItem
instances having the same name are equal, and simply use setSelectedItem(new ComboItem(anyNumber, "banana"))
;When you use df.apply()
, each row of your DataFrame will be passed to your lambda function as a pandas Series. The frame's columns will then be the index of the series and you can access values using series[label]
.
So this should work:
df['D'] = (df.apply(lambda x: myfunc(x[colNames[0]], x[colNames[1]]), axis=1))
.md is markdown
. README.md
is used to generate the html
summary you see at the bottom of projects. Github has their own flavor of Markdown.
Order of Preference: If you have two files named README
and README.md
, the file named README.md
is preferred, and it will be used to generate github's html
summary.
FWIW, Stack Overflow uses local Markdown modifications as well (also see Stack Overflow's C# Markdown Processor)
If you would like to add vector to itself both popular solutions will fail:
std::vector<std::string> v, orig;
orig.push_back("first");
orig.push_back("second");
// BAD:
v = orig;
v.insert(v.end(), v.begin(), v.end());
// Now v contains: { "first", "second", "", "" }
// BAD:
v = orig;
std::copy(v.begin(), v.end(), std::back_inserter(v));
// std::bad_alloc exception is generated
// GOOD, but I can't guarantee it will work with any STL:
v = orig;
v.reserve(v.size()*2);
v.insert(v.end(), v.begin(), v.end());
// Now v contains: { "first", "second", "first", "second" }
// GOOD, but I can't guarantee it will work with any STL:
v = orig;
v.reserve(v.size()*2);
std::copy(v.begin(), v.end(), std::back_inserter(v));
// Now v contains: { "first", "second", "first", "second" }
// GOOD (best):
v = orig;
v.insert(v.end(), orig.begin(), orig.end()); // note: we use different vectors here
// Now v contains: { "first", "second", "first", "second" }
This example does not swap two int pointers. It swaps the value of the integers that pa
and pb
are pointing to. Here's an example of what's going on when you call this:
void Swap1 (int *pa, int *pb){
int temp = *pa;
*pa = *pb;
*pb = temp;
}
int main()
{
int a = 42;
int b = 17;
int *pa = &a;
int *pb = &b;
printf("--------Swap1---------\n");
printf("a = %d\n b = %d\n", a, b);
swap1(pa, pb);
printf("a = %d\n = %d\n", a, a);
printf("pb address = %p\n", pa);
printf("pa address = %p\n", pb);
}
The output here is:
a = 42
b = 17
pa address = 0x7fffdf933228
pb address = 0x7fffdf93322c
--------Swap---------
pa = 17
pb = 42
a = 17
b = 42
pa address = 0x7fffdf933228
pb address = 0x7fffdf93322c
Note that the values swapped, but the pointer's addresses did not swap!
In order to swap addresses we need to do this:
void swap2 (int **pa, int **pb){
int temp = *pa;
*pa = *pb;
*pb = temp;
}
and in main call the function like swap2(&pa, &pb);
Now the addresses are swapped, as well as the values for the pointers. a
and b
have the same values that the are initialized with The integers a and b did not swap because it swap2
swaps the addresses being being pointed to by the pointers!:
a = 42
b = 17
pa address = 0x7fffddaa9c98
pb address = 0x7fffddaa9c9c
--------Swap---------
pa = 17
pb = 42
a = 42
b = 17
pa address = 0x7fffddaa9c9c
pb address = 0x7fffddaa9c98
Since Strings in C are char pointers, and you want to swap Strings, you are really swapping a char pointer. As in the examples with an int, you need a double pointer to swap addresses.
The values of integers can be swapped even if the address isn't, but Strings are by definition a character pointer. You could swap one char with single pointers as the parameter, but a character pointer needs to be a double pointer in order to swap the strings.
Show create table in classic asp (handles constraints, primary keys, copying the table structure and/or data ...)
Sql server Show create table Mysql-style "Show create table" and "show create database" commands from Microsoft sql server. The script is written is Microsoft asp-language and is quite easy to port to another language.*
<html>
<table>
<tr>
<td style="padding-left: 5px;padding-bottom:3px; font-size:35px;"> <b>Datum:</b><br/>
November 2010 </td>
</table>
</html>
Your question is a little unclear, but if what you're doing is trying to get your friend's latest changes, then typically what your friend needs to do is to push those changes up to a remote repo (like one hosted on GitHub), and then you fetch or pull those changes from the remote:
Your friend pushes his changes to GitHub:
git push origin <branch>
Clone the remote repository if you haven't already:
git clone https://[email protected]/abc/theproject.git
Fetch or pull your friend's changes (unnecessary if you just cloned in step #2 above):
git fetch origin
git merge origin/<branch>
Note that git pull
is the same as doing the two steps above:
git pull origin <branch>
Here's a variation on ashirazi's answer which doesn't rely on $IFS
. It does have its own issues which I ouline below.
sentence="one;two;three"
sentence=${sentence//;/$'\n'} # change the semicolons to white space
for word in $sentence
do
echo "$word"
done
Here I've used a newline, but you could use a tab "\t
" or a space. However, if any of those characters are in the text it will be split there, too. That's the advantage of $IFS
- it can not only enable a separator, but disable the default ones. Just make sure you save its value before you change it - as others have suggested.
I have always just installed the new version on top and never had any issues. Do make sure that your path is updated to point to the new version though.
If you are already connected, simply type this in the javascript console:
FB.getAuthResponse()['accessToken']
I have created a small application with step by step description to get current location's GPS coordinates.
Complete example source code is in Get Current Location coordinates , City name - in Android.
See how it works:
All we need to do is add this permission in the manifest file:
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
And create a LocationManager instance like this:
LocationManager locationManager = (LocationManager)
getSystemService(Context.LOCATION_SERVICE);
Check if GPS is enabled or not.
And then implement LocationListener and get coordinates:
LocationListener locationListener = new MyLocationListener();
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER, 5000, 10, locationListener);
Here is the sample code to do so
/*---------- Listener class to get coordinates ------------- */
private class MyLocationListener implements LocationListener {
@Override
public void onLocationChanged(Location loc) {
editLocation.setText("");
pb.setVisibility(View.INVISIBLE);
Toast.makeText(
getBaseContext(),
"Location changed: Lat: " + loc.getLatitude() + " Lng: "
+ loc.getLongitude(), Toast.LENGTH_SHORT).show();
String longitude = "Longitude: " + loc.getLongitude();
Log.v(TAG, longitude);
String latitude = "Latitude: " + loc.getLatitude();
Log.v(TAG, latitude);
/*------- To get city name from coordinates -------- */
String cityName = null;
Geocoder gcd = new Geocoder(getBaseContext(), Locale.getDefault());
List<Address> addresses;
try {
addresses = gcd.getFromLocation(loc.getLatitude(),
loc.getLongitude(), 1);
if (addresses.size() > 0) {
System.out.println(addresses.get(0).getLocality());
cityName = addresses.get(0).getLocality();
}
}
catch (IOException e) {
e.printStackTrace();
}
String s = longitude + "\n" + latitude + "\n\nMy Current City is: "
+ cityName;
editLocation.setText(s);
}
@Override
public void onProviderDisabled(String provider) {}
@Override
public void onProviderEnabled(String provider) {}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {}
}
Another way to cope with it is to use Cygwin, depending on what do you want to do with the files (i.e. if Cygwin commands suit your needs)
For example it allows to copy, move or rename files that even Windows Explorer can't. Or of course deal with the contents of them like md5sum, grep, gzip, etc.
Also for programs that you are coding, you could link them to the Cygwin DLL and it would enable them to use long paths (I haven't tested this though)
Some notes to complement the ALTER DATABASE process:
1) You can obtain a full list of databases with logical names and full paths of MDF and LDF files:
USE master SELECT name, physical_name FROM sys.master_files
2) You can move manually the files with CMD move command:
Move "Source" "Destination"
Example:
md "D:\MSSQLData"
Move "C:\test\SYSADMIT-DB.mdf" "D:\MSSQLData\SYSADMIT-DB_Data.mdf"
Move "C:\test\SYSADMIT-DB_log.ldf" "D:\MSSQLData\SYSADMIT-DB_log.ldf"
3) You should change the default database path for new databases creation. The default path is obtained from the Windows registry.
You can also change with T-SQL, for example, to set default destination to: D:\MSSQLData
USE [master]
GO
EXEC xp_instance_regwrite N'HKEY_LOCAL_MACHINE', N'Software\Microsoft\MSSQLServer\MSSQLServer', N'DefaultData', REG_SZ, N'D:\MSSQLData'
GO
EXEC xp_instance_regwrite N'HKEY_LOCAL_MACHINE', N'Software\Microsoft\MSSQLServer\MSSQLServer', N'DefaultLog', REG_SZ, N'D:\MSSQLData'
GO
Extracted from: http://www.sysadmit.com/2016/08/mover-base-de-datos-sql-server-a-otro-disco.html
Due to the complexity of determining the center of the current screen in a multi-monitor setup, an easier option is to center the pop-up over the parent window. Simply pass the parent window as another parameter:
function popupWindow(url, windowName, win, w, h) {
const y = win.top.outerHeight / 2 + win.top.screenY - ( h / 2);
const x = win.top.outerWidth / 2 + win.top.screenX - ( w / 2);
return win.open(url, windowName, `toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, copyhistory=no, width=${w}, height=${h}, top=${y}, left=${x}`);
}
Implementation:
popupWindow('google.com', 'test', window, 200, 100);
I found a quick way for this:
log = open("log.txt", 'a')
def oprint(message):
print(message)
global log
log.write(message)
return()
code ...
log.close()
Whenever you want to print something just use oprint rather than print.
Note1: In case you want to put the function oprint in a module then import it, use:
import builtins
builtins.log = open("log.txt", 'a')
Note2: what you pass to oprint should be a one string (so if you were using a comma in your print to separate multiple strings, you may replace it with +)
I am using mysql-5.7.12-osx10.11-x86_64.dmg in Mac OSX
The installation process automatically sets up a temporary password for root user. You should save the password. The password can not be recovered.
Follow the instruction
cd /usr/local/mysql/bin/
SET PASSWORD FOR 'root'@'localhost' = PASSWORD('{YOUR_PASSWORD}');
If you wish to set your password: "root" then the command would be, SET PASSWORD FOR 'root'@'localhost' = PASSWORD('root');
ALTER USER 'root'@'localhost' PASSWORD EXPIRE NEVER;
exit
./mysql -u root -p
For convenience, you should add "/usr/local/mysql/bin"
to your PATH
Now from anywhere you can type ./mysql -u root -p
and then type the password and you will get mysql> prompt.
Hope it helps.
You can change it by going File
=> Settings
(Shortcut CTRL+ ALT+ S) , from Left panel Choose Appearance
, Now from Right Panel choose theme.
Android Studio 2.1
Preference -> Search for Appearance -> UI options , Click on DropDown Theme
Android 2.2
Android studio -> File -> Settings -> Appearance & Behavior -> Look for UI Options
EDIT :
Import External Themes
You can download custom theme from this website. Choose your theme, download it. To set theme Go to Android studio -> File -> Import Settings -> Choose the
.jar
file downloaded.
Experienced this myself when using requests
:
This is extremely insecure; use only as a last resort! (See rdlowrey's comment.)
requests.get('https://github.com', verify=True)
Making that verify=False
did the trick for me.
It should be as simple as...
LOAD DATA INFILE '/tmp/mydata.txt' INTO TABLE PerformanceReport;
By default LOAD DATA INFILE
uses tab delimited, one row per line, so should take it in just fine.
If you have saved the excel file in the same folder as your python program (relative paths) then you just need to mention sheet number along with file name.
Example:
data = pd.read_excel("wt_vs_ht.xlsx", "Sheet2")
print(data)
x = data.Height
y = data.Weight
plt.plot(x,y,'x')
plt.show()
font/woff2
For nginx add the following to the mime.types
file:
font/woff2 woff2;
Old Answer
The mime type (sometime written as mimetype) for WOFF2 fonts has been proposed as application/font-woff2
.
Also, if you refer to the spec (http://dev.w3.org/webfonts/WOFF2/spec/) you will see that font/woff2
is being discussed. I suspect that the filal mime type for all fonts will eventually be the more logical font/*
(font/ttf
, font/woff2
etc)...
N.B. WOFF2 is still in 'Working Draft' status -- not yet adopted officially.
If you encounter this error
"java.lang.NullPointerException: Attempt to invoke virtual method 'void androidx.appcompat.app.ActionBar.setTitle (java.lang.CharSequence)' on a null object reference. "
Just use
setSupportActionBar (toolbar).
Please check if you have some config files in ${MAVEN_HOME}/conf
directory like settings.xml
.
Those files overrides settings from .m2
folder and because of that, repository folder from .m2
might not be visible or discarded.
Had to install the wheel
package. Everything was up to date but still giving the error.
pip install wheel
then
python setup.py bdist_wheel
Worked without issues.
To elaborate on Pascal: Do you understand how a HashMap works? You have some number of slots in your hash table. The hash value for each key is found, and then mapped to an entry in the table. If two hash values map to the same entry -- a "hash collision" -- HashMap builds a linked list.
Hash collisions can kill the performance of a hash map. In the extreme case, if all your keys have the same hash code, or if they have different hash codes but they all map to the same slot, then your hash map turns into a linked list.
So if you're seeing performance problems, the first thing I'd check is: Am I getting a random-looking distribution of hash codes? If not, you need a better hash function. Well, "better" in this case may mean "better for my particular set of data". Like, suppose you were working with strings, and you took the length of the string for the hash value. (Not how Java's String.hashCode works, but I'm just making up a simple example.) If your strings have widely varying lengths, from 1 to 10,000, and are fairly evenly distributed across that range, that this could be a very good hash function. But if your strings are all 1 or 2 characters, this would be a very bad hash function.
Edit: I should add: Every time you add a new entry, HashMap checks if this is a duplicate. When there's a hash collision, it has to compare the incoming key against every key that mapped to that slot. So in the worst case where everything hashes to a single slot, the second key is compared to the first key, the third key is compared to #1 and #2, the fourth key is compared to #1, #2, and #3, etc. By the time you get to key #1 million, you've done over a trillion compares.
@Oscar: Umm, I don't see how that's a "not really". It's more like a "let me clarify". But yes, it's true that if you make a new entry with the same key as an existing entry, that this overwrites the first entry. That's what I meant when I talked about looking for duplicates in the last paragraph: Whenever a key hashes to the same slot, HashMap must check if it's a duplicate of an existing key, or if they are just in the same slot by coincidence of the hash function. I don't know that that's the "whole point" of a HashMap: I would say that the "whole point" is that you can retrieve elements by key quickly.
But anyway, that doesn't affect the "whole point" that I was trying to make: When you have two keys -- yes, different keys, not the same key showing up again -- that map to the same slot in the table, HashMap builds a linked list. Then, because it has to check each new key to see if it is in fact a duplicate of an existing key, each attempt to add a new entry that maps to this same slot must chase the linked list examining each existing entry to see if this is a duplicate of a previously-seen key, or if it is a new key.
Update long after the original post
I just got an up-vote on this answer 6 years after posting which led me to re-read the question.
The hash function given in the question is not a good hash for 26 million entries.
It adds together a[0]+a[1] and b[0]+b[1]+b[2]. He says values of each byte range from 0 to 51, so that gives only (51*2+1)*(51*3+1)=15,862 possible hash values. With 26 million entries, this means an average of about 1639 entries per hash value. That is lots and lots of collisions, requiring lots and lots of sequential searches through linked lists.
The OP says that different orders within array a and array b should be considered equal, i.e. [[1,2],[3,4,5]].equals([[2,1],[5,3,4]]), and so to fulfill the contract they must have equal hash codes. Okay. Still, there are a lot more than 15,000 possible values. His second proposed hash function is much better, giving a broader range.
Though as someone else commented, it seems inappropriate for a hash function to change other data. It would make more sense to "normalize" the object when it is created, or to have the hash function work from copies of the arrays. Also, using a loop to calculate constants every time through the function is inefficient. As there are only four values here, I would have either written
return a[0]+a[1]*52+b[0]*52*52+b[1]*52*52*52+b[2]*52*52*52*52;
which would cause the compiler to perform the calculation once at compile time; or have 4 static constants defined in the class.
Also, the first draft at a hash function has several calculations that do nothing to add to the range of outputs. Note he first sets hash =503 than multiplies by 5381 before even considering values from the class. So ... in effect he adds 503*5381 to every value. What does this accomplish? Adding a constant to every hash value just burns cpu cycles without accomplishing anything useful. Lesson here: Adding complexity to a hash function is not the goal. The goal is to get a broad range of different values, not just to add complexity for the sake of complexity.
This is how you can use the self inside the block:
//calling of the block
NSString *returnedText= checkIfOutsideMethodIsCalled(self);
NSString* (^checkIfOutsideMethodIsCalled)(*)=^NSString*(id obj)
{
[obj MethodNameYouWantToCall]; // this is how it will call the object
return @"Called";
};
In python3 the following works:
>>> v=10.4
>>> print('% 6.2f' % v)
10.40
>>> print('% 12.1f' % v)
10.4
>>> print('%012.1f' % v)
0000000010.4
print [s for s in list if sub in s]
If you want them separated by newlines:
print "\n".join(s for s in list if sub in s)
Full example, with case insensitivity:
mylist = ['abc123', 'def456', 'ghi789', 'ABC987', 'aBc654']
sub = 'abc'
print "\n".join(s for s in mylist if sub.lower() in s.lower())
Looks like you are using maven (src/main/java)
. In this case put the applicationContext.xml
file in the src/main/resources
directory. It will be copied in the classpath directory and you should be able to access it with
@ContextConfiguration("/applicationContext.xml")
From the Spring-Documentation: A plain path, for example "context.xml", will be treated as a classpath resource from the same package in which the test class is defined. A path starting with a slash is treated as a fully qualified classpath location, for example "/org/example/config.xml".
So it's important that you add the slash when referencing the file in the root directory of the classpath.
If you work with the absolute file path you have to use 'file:C:...' (if I understand the documentation correctly).
Note: If iOS-only is sufficient (if you're willing to sacrifice Safari desktop), then this works:
@supports (-webkit-overflow-scrolling: touch) {
/* CSS specific to iOS devices */
}
if
and grep -Eq
arg='abc'
if echo "$arg" | grep -Eq 'a.c|d.*'; then
echo 'first'
elif echo "$arg" | grep -Eq 'a{2,3}'; then
echo 'second'
fi
where:
-q
prevents grep
from producing output, it just produces the exit status-E
enables extended regular expressionsI like this because:
case
One downside is that this is likely slower than case
since it calls an external grep
program, but I tend to consider performance last when using Bash.
case
is POSIX 7
Bash appears to follow POSIX by default without shopt
as mentioned by https://stackoverflow.com/a/4555979/895245
Here is the quote: http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_01 section "Case Conditional Construct":
The conditional construct case shall execute the compound-list corresponding to the first one of several patterns (see Pattern Matching Notation) [...] Multiple patterns with the same compound-list shall be delimited by the '|' symbol. [...]
The format for the case construct is as follows:
case word in [(] pattern1 ) compound-list ;; [[(] pattern[ | pattern] ... ) compound-list ;;] ... [[(] pattern[ | pattern] ... ) compound-list] esac
and then http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_13 section "2.13. Pattern Matching Notation" only mentions ?
, *
and []
.
If you have more than this in javascript consider some javascript library, e.g. jquery which takes away a little speed, but gives you more readable code.
Your question's code via jquery:
$("td").hide();
Of course there are other javascript libraries out there, as this comparison on wikipedia shows.
Similar implementation to Ahmad Sirojuddin but slightly different semantics. From a security perspective, any time a function writes into a string buffer, the function should really "know" the size of the buffer and refuse to write past the end of it. I would guess its a part of the reason you can't find itoa anymore.
Also, the following implementation avoids performing the module/devide operation twice.
char *u32todec( uint32_t value,
char *buf,
int size)
{
if(size > 1){
int i=size-1, offset, bytes;
buf[i--]='\0';
do{
buf[i--]=(value % 10)+'0';
value = value/10;
}while((value > 0) && (i>=0));
offset=i+1;
if(offset > 0){
bytes=size-i-1;
for(i=0;i<bytes;i++)
buf[i]=buf[i+offset];
}
return buf;
}else
return NULL;
}
The following code both tests the above code and demonstrates its correctness:
int main(void)
{
uint64_t acc;
uint32_t inc;
char buf[16];
size_t bufsize;
for(acc=0, inc=7; acc<0x100000000; acc+=inc){
printf("%u: ", (uint32_t)acc);
for(bufsize=17; bufsize>0; bufsize/=2){
if(NULL != u32todec((uint32_t)acc, buf, bufsize))
printf("%s ", buf);
}
printf("\n");
if(acc/inc > 9)
inc*=7;
}
return 0;
}
The .bash_profile for macOS is found in the $HOME
directory. You can create the file if it does not exit. Sublime Text 3 can help.
If you follow the instruction from OS X Command Line - Sublime Text to launch ST3 with subl
then you can just do this
$ subl ~/.bash_profile
An easier method is to use open
$ open ~/.bash_profile -a "Sublime Text"
Use Command + Shift + . in Finder to view hidden files in your home directory.
In python3.7.7, the definition of json.load is as below according to cpython source code:
def load(fp, *, cls=None, object_hook=None, parse_float=None,
parse_int=None, parse_constant=None, object_pairs_hook=None, **kw):
return loads(fp.read(),
cls=cls, object_hook=object_hook,
parse_float=parse_float, parse_int=parse_int,
parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
json.load actually calls json.loads and use fp.read()
as the first argument.
So if your code is:
with open (file) as fp:
s = fp.read()
json.loads(s)
It's the same to do this:
with open (file) as fp:
json.load(fp)
But if you need to specify the bytes reading from the file as like fp.read(10)
or the string/bytes you want to deserialize is not from file, you should use json.loads()
As for json.loads(), it not only deserialize string but also bytes. If s
is bytes or bytearray, it will be decoded to string first. You can also find it in the source code.
def loads(s, *, encoding=None, cls=None, object_hook=None, parse_float=None,
parse_int=None, parse_constant=None, object_pairs_hook=None, **kw):
"""Deserialize ``s`` (a ``str``, ``bytes`` or ``bytearray`` instance
containing a JSON document) to a Python object.
...
"""
if isinstance(s, str):
if s.startswith('\ufeff'):
raise JSONDecodeError("Unexpected UTF-8 BOM (decode using utf-8-sig)",
s, 0)
else:
if not isinstance(s, (bytes, bytearray)):
raise TypeError(f'the JSON object must be str, bytes or bytearray, '
f'not {s.__class__.__name__}')
s = s.decode(detect_encoding(s), 'surrogatepass')
To check if something does not exist in a string, you at least need to look at each character in a string. So even if you don't explicitly use a loop, it'll have the same efficiency. That being said, you can try using str.contains(""+char).
Not really as far as I know but here are couple things you can try.
Third party tools: Create empty database on 2008 instance and use third party tools such as ApexSQL Diff and Data Diff to synchronize schema and tables.
Just use these (or any other on the market such as Red Gate, Idera, Dev Art, there are many similar) in trial mode to get the job done.
Generate scripts: Go to Tasks -> Generate Scripts, select option to script the data too and execute it on 2008 instance. Works just fine but note that script order is something you must be careful about. By default scripts are not ordered to take dependencies into account.
The easiest solution to this particular problem would have been to add another function within the module that would have stored the cursor in a variable global to the module. Then all the other functions could use it as well.
module1:
cursor = None
def setCursor(cur):
global cursor
cursor = cur
def method(some, args):
global cursor
do_stuff(cursor, some, args)
main program:
import module1
cursor = get_a_cursor()
module1.setCursor(cursor)
module1.method()
Add below to pre-build event command line:
echo %date% %time% > "$(ProjectDir)\Resources\BuildDate.txt"
Add this file as resource, now you have 'BuildDate' string in your resources.
To create resources, see How to create and use resources in .NET.
I know there is already an answer - and this is an old question - but I was wondering the same thing and after finding this answer I did a little experimentation on my own and had (IMO) a worthwhile addition to the discussion.
The non-visible characters can still be used in a folder name - a placeholder is inserted - but the sort on ASCII value still seems to hold.
I tested on Windows7, holding down the alt-key and typing in the ASCII code using the numeric keypad. I did not test very many, but was successful creating foldernames that started with ASCII 1, ASCII 2, and ASCII 3. Those correspond with SOH, STX and ETX. Respectively it displayed happy face, filled happy face, and filled heart.
I'm not sure if I can duplicate that here - but I will type them in on the next lines and submit.
?foldername
?foldername
?foldername
<span style="color:orange;">orange text</span>
Is the only way I know of barring the font tag.
Here's a better option:
git remote set-head -a origin
From the documentation:
With -a, the remote is queried to determine its HEAD, then $GIT_DIR/remotes//HEAD is set to the same branch. e.g., if the remote HEAD is pointed at next, "git remote set-head origin -a" will set $GIT_DIR/refs/remotes/origin/HEAD to refs/remotes/origin/next. This will only work if refs/remotes/origin/next already exists; if not it must be fetched first.
This has actually been around quite a while (since v1.6.3); not sure how I missed it!
Example HTML:
//jQuery extension method:_x000D_
jQuery.fn.filterByText = function(textbox) {_x000D_
return this.each(function() {_x000D_
var select = this;_x000D_
var options = [];_x000D_
$(select).find('option').each(function() {_x000D_
options.push({_x000D_
value: $(this).val(),_x000D_
text: $(this).text()_x000D_
});_x000D_
});_x000D_
$(select).data('options', options);_x000D_
_x000D_
$(textbox).bind('change keyup', function() {_x000D_
var options = $(select).empty().data('options');_x000D_
var search = $.trim($(this).val());_x000D_
var regex = new RegExp(search, "gi");_x000D_
_x000D_
$.each(options, function(i) {_x000D_
var option = options[i];_x000D_
if (option.text.match(regex) !== null) {_x000D_
$(select).append(_x000D_
$('<option>').text(option.text).val(option.value)_x000D_
);_x000D_
}_x000D_
});_x000D_
});_x000D_
});_x000D_
};_x000D_
_x000D_
// You could use it like this:_x000D_
_x000D_
$(function() {_x000D_
$('select').filterByText($('input'));_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<select>_x000D_
<option value="hello">hello</option>_x000D_
<option value="world">world</option>_x000D_
<option value="lorem">lorem</option>_x000D_
<option value="ipsum">ipsum</option>_x000D_
<option value="lorem ipsum">lorem ipsum</option>_x000D_
</select>_x000D_
<input type="text">
_x000D_
Live demo here: http://www.lessanvaezi.com/filter-select-list-options/
If you are using Visual Studio. The reason you might be recieving this error may be because you originally created a new header file.h and then renamed it to file.cpp where you placed your main() function.
To fix the issue right click file.cpp -> click Properties
go to
Configuration Properties -> General ->Item Type and change its value to
C/C++ compiler instead of C/C++ header.
New approach to old question. A solution that works from java 9+
ObjectNode agencyNode = new ObjectMapper().valueToTree(Map.of("key", "value"));
is more readable and maintainable for complex objects. Ej
Map<String, Object> agencyMap = Map.of(
"name", "Agencia Prueba",
"phone1", "1198788373",
"address", "Larrea 45 e/ calligaris y paris",
"number", 267,
"enable", true,
"location", Map.of("id", 54),
"responsible", Set.of(Map.of("id", 405)),
"sellers", List.of(Map.of("id", 605))
);
ObjectNode agencyNode = new ObjectMapper().valueToTree(agencyMap);
Just install cache eraser plugin, it is compatible with nb6.9, 7.0,7.1,7.2 and 7.3: To configure the plugin you have to provide the cache dir which is in netbean's about screen. Then with Tools->erase cache, you clear the netbeans cache. That is all, good luck.
If you're simply trying to resize an image, I'd recommend setting width
and height
of the image with CSS. Here's a quick example:
.small-image {
width: 100px;
height: 100px;
}
Note that the height
and width
can also be set using JavaScript. Here's quick code sample:
var img = document.getElement("my-image");
img.style.width = 100 + "px"; // Make sure you add the "px" to the end,
img.style.height = 100 + "px"; // otherwise you'll confuse IE
Also, to ensure that the resized image looks good, add the following css rules to image selector:
-ms-interpolation-mode: bicubic
: introduce in IE7image-rendering: optimizeQuality
: introduced in FireFox 3.6As far as I can tell, all browsers except IE using an bicubic algorithm to resize images by default, so your resized images should look good in Firefox and Chrome.
If setting the css width
and height
doesn't work, you may want to play with a css transform
:
If for whatever reason you need to use a canvas, please note that there are two ways an image can be resize: by resizing the canvas with css or by drawing the image at a smaller size.
See this question for more details.
Following seem simplest to me:
>>> import numpy as np
>>> l = [[1, 2, 3], [4, 5, 6], [7], [8, 9]]
>>> print (np.concatenate(l))
[1 2 3 4 5 6 7 8 9]
This is a barebones look at what I've done to float one image over another.
img {_x000D_
position: absolute;_x000D_
top: 25px;_x000D_
left: 25px;_x000D_
}_x000D_
.imgA1 {_x000D_
z-index: 1;_x000D_
}_x000D_
.imgB1 {_x000D_
z-index: 3;_x000D_
}
_x000D_
<img class="imgA1" src="https://placehold.it/200/333333">_x000D_
<img class="imgB1" src="https://placehold.it/100">
_x000D_
json.dumps()
is much more than just making a string out of a Python object, it would always produce a valid JSON string (assuming everything inside the object is serializable) following the Type Conversion Table.
For instance, if one of the values is None
, the str()
would produce an invalid JSON which cannot be loaded:
>>> data = {'jsonKey': None}
>>> str(data)
"{'jsonKey': None}"
>>> json.loads(str(data))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/__init__.py", line 338, in loads
return _default_decoder.decode(s)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/decoder.py", line 366, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/decoder.py", line 382, in raw_decode
obj, end = self.scan_once(s, idx)
ValueError: Expecting property name: line 1 column 2 (char 1)
But the dumps()
would convert None
into null
making a valid JSON string that can be loaded:
>>> import json
>>> data = {'jsonKey': None}
>>> json.dumps(data)
'{"jsonKey": null}'
>>> json.loads(json.dumps(data))
{u'jsonKey': None}
You can quickly get to blur effect by doing the following.
// Add this to build.gradle app //
Compile ' com.github.jgabrielfreitas:BlurImageView:1.0.1 '
// Add to XML
<com.jgbrielfreitas.core.BlurImageView
android:id="@+id/iv_blur_image"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
//Add this to java
Import com.jgabrielfreitas.core.BlueImageView;
// Under public class *activity name * //
BlurImageView myBlurImage;
// Under Oncreate//
myBlurImage = (ImageView) findViewById(R.id.iv_blur_image)
MyBlurImage.setBlue(5)
I hope that helps someone
Using multiple comment/answers in this thread, here is my solution :
import hashlib
def md5_for_file(path, block_size=256*128, hr=False):
'''
Block size directly depends on the block size of your filesystem
to avoid performances issues
Here I have blocks of 4096 octets (Default NTFS)
'''
md5 = hashlib.md5()
with open(path,'rb') as f:
for chunk in iter(lambda: f.read(block_size), b''):
md5.update(chunk)
if hr:
return md5.hexdigest()
return md5.digest()
And finally,
- This has been built by a community, thanks all for your advices/ideas.
#include <stdio.h>
#include <math.h>
/*
To define a new type name with typedef, follow these steps:
1. Write the statement as if a variable of the desired type were being declared.
2. Where the name of the declared variable would normally appear, substitute the new type name.
3. In front of everything, place the keyword typedef.
*/
// typedef a primitive data type
typedef double distance;
// typedef struct
typedef struct{
int x;
int y;
} point;
//typedef an array
typedef point points[100];
points ps = {0}; // ps is an array of 100 point
// typedef a function
typedef distance (*distanceFun_p)(point,point) ; // TYPE_DEF distanceFun_p TO BE int (*distanceFun_p)(point,point)
// prototype a function
distance findDistance(point, point);
int main(int argc, char const *argv[])
{
// delcare a function pointer
distanceFun_p func_p;
// initialize the function pointer with a function address
func_p = findDistance;
// initialize two point variables
point p1 = {0,0} , p2 = {1,1};
// call the function through the pointer
distance d = func_p(p1,p2);
printf("the distance is %f\n", d );
return 0;
}
distance findDistance(point p1, point p2)
{
distance xdiff = p1.x - p2.x;
distance ydiff = p1.y - p2.y;
return sqrt( (xdiff * xdiff) + (ydiff * ydiff) );
}
I agree with Ben. You cannot load/import the simple JSON file.
But if you absolutely want to do that and have flexibility to update json file, you can
my-json.js
var myJSON = {
id: "12ws",
name: "smith"
}
index.html
<head>
<script src="my-json.js"></script>
</head>
<body onload="document.getElementById('json-holder').innerHTML = JSON.stringify(myJSON);">
<div id="json-holder"></div>
</body>
Workaround....
In VS 2015 Professional (and probably other versions). Go to Tools / Options / Environment / Fonts and Colours. In the "Show Settings For" drop-down, select "CodeLens" Choose the smallest font you can find e.g. Calibri 6. Change the foreground colour to your editor foreground colour (say "White") Click OK.
SELECT * FROM table_name WHERE CONCAT( SUBSTRING(json_date, 11, 4 ) , '-', SUBSTRING( json_date, 7, 2 ) , '-', SUBSTRING(json_date, 3, 2 ) ) >= NOW();
json_date ["05/11/2011"]
In the case of determining whether only some keys match, this works:
any_keys_i_seek = ["key1", "key2", "key3"]
if set(my_dict).intersection(any_keys_i_seek):
# code_here
pass
Yet another option to find if only some keys match:
any_keys_i_seek = ["key1", "key2", "key3"]
if any_keys_i_seek & my_dict.keys():
# code_here
pass
Use os.chdir
to change directory .
Use glob.glob
to generate a list of file names which end it '.bak'. The elements of the list are just strings.
Then you could use os.unlink
to remove the files. (PS. os.unlink
and os.remove
are synonyms for the same function.)
#!/usr/bin/env python
import glob
import os
directory='/path/to/dir'
os.chdir(directory)
files=glob.glob('*.bak')
for filename in files:
os.unlink(filename)
I had the same problem;
textStatus = 'error'
errorThrown = (empty)
xhr.status = 0
That fits my problem exactly. It turns out that when I was loading the HTML-page from my own computer this problem existed, but when I loaded the HTML-page from my webserver it went alright. Then I tried to upload it to another domain, and again the same error occoured. Seems to be a cross-domain problem. (in my case at least)
I have tried calling it this way also:
var request = $.ajax({
url: "http://crossdomain.url.net/somefile.php", dataType: "text",
crossDomain: true,
xhrFields: {
withCredentials: true
}
});
but without success.
This post solved it for me: jQuery AJAX cross domain
Use dataType: "jsonp"
. I had the same error before. It fixed for me.
This worked for me..
select ROW_NUMBER() over (order by column_name_of your choice ) as pri_key, the other columns of the view
<?php
$codes = array ('tn','us','fr');
$names = array ('Tunisia','United States','France');
echo '<table>';
foreach(array_keys($codes) as $i) {
echo '<tr><td>';
echo ($i + 1);
echo '</td><td>';
echo $codes[$i];
echo '</td><td>';
echo $names[$i];
echo '</td></tr>';
}
echo '</table>';
?>
RSabet's answer doesn't work in cases where the dates don't have the same exact time.
Original problem:
from datetime import datetime
fmt = '%Y-%m-%d %H:%M:%S'
d1 = datetime.strptime('2010-01-01 17:31:22', fmt)
d2 = datetime.strptime('2010-01-03 17:31:22', fmt)
daysDiff = (d2-d1).days
print daysDiff
> 2
# Convert days to minutes
minutesDiff = daysDiff * 24 * 60
print minutesDiff
> 2880
d2-d1 gives you a datetime.timedelta and when you use days it will only show you the days in the timedelta. In this case it works fine, but if you would have the following.
from datetime import datetime
fmt = '%Y-%m-%d %H:%M:%S'
d1 = datetime.strptime('2010-01-01 16:31:22', fmt)
d2 = datetime.strptime('2010-01-03 20:15:14', fmt)
daysDiff = (d2-d1).days
print daysDiff
> 2
# Convert days to minutes
minutesDiff = daysDiff * 24 * 60
print minutesDiff
> 2880 # that is wrong
It would have still given you the same answer since it still returns 2 for days; it ignores the hour, min and second from the timedelta.
A better approach would be to convert the dates to a common format and then do the calculation. The easiest way to do this is to convert them to Unix timestamps. Here is the code to do that.
from datetime import datetime
import time
fmt = '%Y-%m-%d %H:%M:%S'
d1 = datetime.strptime('2010-01-01 17:31:22', fmt)
d2 = datetime.strptime('2010-01-03 20:15:14', fmt)
# Convert to Unix timestamp
d1_ts = time.mktime(d1.timetuple())
d2_ts = time.mktime(d2.timetuple())
# They are now in seconds, subtract and then divide by 60 to get minutes.
print int(d2_ts-d1_ts) / 60
> 3043 # Much better
Go to Settings (or Preferences in Mac) > Editor > General > Change font size (Zoom) with Ctrl+Mouse Wheel OR Press "Cmd+Shift+A" for mac.
This will allow you to quickly modify the font size whenever you want. However, the font will get reset to the default size the next time you start Android Studio. (The Control+Mouse Wheel functionality will not get reset, though. You only need to do this once.)
Go to Settings > Editor > Colors & Fonts > Font. Click "Save As..." and choose a new scheme name. Then change the font size and say OK. This will be the default size every time you open Android Studio now.
Make sure you have the latest values in your gradle files. As of this writing:
buildToolsVersion "21.1.2"
dependencies { classpath 'com.android.tools.build:gradle:1.1.0' }
KDiff3 open source, cross platform
Same interface for Linux and Windows, very smart algorithm for solving conflicts, regular expressions for automatically solving conflicts, integrate with ClearCase, SVN, Git, MS Visual Studio, editable merged file, compare directories
Its keyboard-navigation is great: ctrl-arrows to navigate the diffs, ctrl-1, 2, 3 to do the merging.
I'd prefer the built in python html parser, no install no dependencies
soup = BeautifulSoup(s, "html.parser")
If you use Guava:
import com.google.common.io.Resources;
we can get URL from CLASSPATH:
URL resource = Resources.getResource("test.txt");
String file = resource.getFile(); // get file path
or InputStream:
InputStream is = Resources.getResource("test.txt").openStream();
http://www.codeproject.com/Articles/237501/Windows-Phone-NTP-Client is going to work well for Windows Phone .
Adding the relevant code
/// <summary>
/// Class for acquiring time via Ntp. Useful for applications in which correct world time must be used and the
/// clock on the device isn't "trusted."
/// </summary>
public class NtpClient
{
/// <summary>
/// Contains the time returned from the Ntp request
/// </summary>
public class TimeReceivedEventArgs : EventArgs
{
public DateTime CurrentTime { get; internal set; }
}
/// <summary>
/// Subscribe to this event to receive the time acquired by the NTP requests
/// </summary>
public event EventHandler<TimeReceivedEventArgs> TimeReceived;
protected void OnTimeReceived(DateTime time)
{
if (TimeReceived != null)
{
TimeReceived(this, new TimeReceivedEventArgs() { CurrentTime = time });
}
}
/// <summary>
/// Not reallu used. I put this here so that I had a list of other NTP servers that could be used. I'll integrate this
/// information later and will provide method to allow some one to choose an NTP server.
/// </summary>
public string[] NtpServerList = new string[]
{
"pool.ntp.org ",
"asia.pool.ntp.org",
"europe.pool.ntp.org",
"north-america.pool.ntp.org",
"oceania.pool.ntp.org",
"south-america.pool.ntp.org",
"time-a.nist.gov"
};
string _serverName;
private Socket _socket;
/// <summary>
/// Constructor allowing an NTP server to be specified
/// </summary>
/// <param name="serverName">the name of the NTP server to be used</param>
public NtpClient(string serverName)
{
_serverName = serverName;
}
/// <summary>
///
/// </summary>
public NtpClient()
: this("time-a.nist.gov")
{ }
/// <summary>
/// Begins the network communication required to retrieve the time from the NTP server
/// </summary>
public void RequestTime()
{
byte[] buffer = new byte[48];
buffer[0] = 0x1B;
for (var i = 1; i < buffer.Length; ++i)
buffer[i] = 0;
DnsEndPoint _endPoint = new DnsEndPoint(_serverName, 123);
_socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
SocketAsyncEventArgs sArgsConnect = new SocketAsyncEventArgs() { RemoteEndPoint = _endPoint };
sArgsConnect.Completed += (o, e) =>
{
if (e.SocketError == SocketError.Success)
{
SocketAsyncEventArgs sArgs = new SocketAsyncEventArgs() { RemoteEndPoint = _endPoint };
sArgs.Completed +=
new EventHandler<SocketAsyncEventArgs>(sArgs_Completed);
sArgs.SetBuffer(buffer, 0, buffer.Length);
sArgs.UserToken = buffer;
_socket.SendAsync(sArgs);
}
};
_socket.ConnectAsync(sArgsConnect);
}
void sArgs_Completed(object sender, SocketAsyncEventArgs e)
{
if (e.SocketError == SocketError.Success)
{
byte[] buffer = (byte[])e.Buffer;
SocketAsyncEventArgs sArgs = new SocketAsyncEventArgs();
sArgs.RemoteEndPoint = e.RemoteEndPoint;
sArgs.SetBuffer(buffer, 0, buffer.Length);
sArgs.Completed += (o, a) =>
{
if (a.SocketError == SocketError.Success)
{
byte[] timeData = a.Buffer;
ulong hTime = 0;
ulong lTime = 0;
for (var i = 40; i <= 43; ++i)
hTime = hTime << 8 | buffer[i];
for (var i = 44; i <= 47; ++i)
lTime = lTime << 8 | buffer[i];
ulong milliseconds = (hTime * 1000 + (lTime * 1000) / 0x100000000L);
TimeSpan timeSpan =
TimeSpan.FromTicks((long)milliseconds * TimeSpan.TicksPerMillisecond);
var currentTime = new DateTime(1900, 1, 1) + timeSpan;
OnTimeReceived(currentTime);
}
};
_socket.ReceiveAsync(sArgs);
}
}
}
Usage :
public partial class MainPage : PhoneApplicationPage
{
private NtpClient _ntpClient;
public MainPage()
{
InitializeComponent();
_ntpClient = new NtpClient();
_ntpClient.TimeReceived += new EventHandler<NtpClient.TimeReceivedEventArgs>(_ntpClient_TimeReceived);
}
void _ntpClient_TimeReceived(object sender, NtpClient.TimeReceivedEventArgs e)
{
this.Dispatcher.BeginInvoke(() =>
{
txtCurrentTime.Text = e.CurrentTime.ToLongTimeString();
txtSystemTime.Text = DateTime.Now.ToUniversalTime().ToLongTimeString();
});
}
private void UpdateTimeButton_Click(object sender, RoutedEventArgs e)
{
_ntpClient.RequestTime();
}
}
Moment.js is an extensive datetime library that also supports this. http://momentjs.com/docs/#/parsing/asp-net-json-dates/
ex: moment("/Date(1198908717056-0700)/")
It might help. plunker output
In your product.service.ts you are using stringify method in a wrong way..
Just use
JSON.stringify(product)
instead of
JSON.stringify({product})
i have checked your problem and after this it's working absolutely fine.
There's of course the rather obvious:
Data[...,0] + 1j * Data[...,1]
Well in my case i was accessing an static array of a class by reference of that class, but as we know we can directly access static member via class name. So when I replaced reference with class name where I was accessing that array. It fixed this error.
Yup, this error might as well be "something failed, good luck figuring out what" - In my case it was a wrong username. SQL Server 2019 RC1.
I don't think you can give a path to curl, but you can CD to the location, download and CD back.
cd target/path && { curl -O URL ; cd -; }
Or using subshell.
(cd target/path && curl -O URL)
Both ways will only download if path exists. -O
keeps remote file name. After download it will return to original location.
If you need to set filename explicitly, you can use small -o
option:
curl -o target/path/filename URL
You know, it might be possible to use an existing ListView with some judicious overriding of dispatchDraw()
(to rotate the Canvas by 90 degrees), onTouch()
(to swap the X and Y of the MotionEvent coords) and maybe onMeasure() or whatever to fool it into thinking it's y by x rather than x by y...
I have no idea if this would actually work but it'd be fun to find out. :)
A slightly simpler solution:
>>> "7061756c".decode("hex")
'paul'
In my opinion, deferreds/promises (as you have mentionned) is the way to go, rather than using timeouts.
Here is an example I have just written to demonstrate how you could do it using deferreds/promises.
Take some time to play around with deferreds. Once you really understand them, it becomes very easy to perform asynchronous tasks.
Hope this helps!
$(function(){
function1().done(function(){
// function1 is done, we can now call function2
console.log('function1 is done!');
function2().done(function(){
//function2 is done
console.log('function2 is done!');
});
});
});
function function1(){
var dfrd1 = $.Deferred();
var dfrd2= $.Deferred();
setTimeout(function(){
// doing async stuff
console.log('task 1 in function1 is done!');
dfrd1.resolve();
}, 1000);
setTimeout(function(){
// doing more async stuff
console.log('task 2 in function1 is done!');
dfrd2.resolve();
}, 750);
return $.when(dfrd1, dfrd2).done(function(){
console.log('both tasks in function1 are done');
// Both asyncs tasks are done
}).promise();
}
function function2(){
var dfrd1 = $.Deferred();
setTimeout(function(){
// doing async stuff
console.log('task 1 in function2 is done!');
dfrd1.resolve();
}, 2000);
return dfrd1.promise();
}
Look at snprintf or, if GNU extensions are OK, asprintf (which will allocate memory for you).
Here's a way to do this in SQL Server 2005 and later without using the deprecated syslogins view:
IF NOT EXISTS
(SELECT name
FROM master.sys.server_principals
WHERE name = 'LoginName')
BEGIN
CREATE LOGIN [LoginName] WITH PASSWORD = N'password'
END
The server_principals view is used instead of sql_logins because the latter doesn't list Windows logins.
If you need to check for the existence of a user in a particular database before creating them, then you can do this:
USE your_db_name
IF NOT EXISTS
(SELECT name
FROM sys.database_principals
WHERE name = 'Bob')
BEGIN
CREATE USER [Bob] FOR LOGIN [Bob]
END
Instead of using group concat()
you can use just concat()
Select concat(Col1, ',', Col2) as Foo_Bar from Table1;
edit this only works in mySQL; Oracle concat only accepts two arguments. In oracle you can use something like select col1||','||col2||','||col3 as foobar from table1; in sql server you would use + instead of pipes.
You need to pass your context to your fyl class..
One solution is make a constructor like this for your fyl
class:
public class fyl {
Context mContext;
public fyl(Context mContext) {
this.mContext = mContext;
}
public Location getLocation() {
--
locationManager = (LocationManager)mContext.getSystemService(context);
--
}
}
So in your activity class create the object of fyl in onCreate
function like this:
package com.atClass.lmt;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
import android.location.Location;
public class lmt extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
fyl lfyl = new fyl(this); //Here the context is passing
Location location = lfyl.getLocation();
String latLongString = lfyl.updateWithNewLocation(location);
TextView myLocationText = (TextView)findViewById(R.id.myLocationText);
myLocationText.setText("Your current position is:\n" + latLongString);
}
}
use below code it helps you....
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 4;
options.inPurgeable = true;
Bitmap bm = BitmapFactory.decodeFile("your path of image",options);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bm.compress(Bitmap.CompressFormat.JPEG,40,baos);
// bitmap object
byteImage_photo = baos.toByteArray();
//generate base64 string of image
String encodedImage =Base64.encodeToString(byteImage_photo,Base64.DEFAULT);
//send this encoded string to server
Use count()
:
sc=scorm.objects.filter(Header__id=qp.id)
if sc.count() > 0:
...
The advantage over e.g. len()
is, that the QuerySet is not yet evaluated:
count()
performs aSELECT COUNT(*)
behind the scenes, so you should always usecount()
rather than loading all of the record into Python objects and callinglen()
on the result.
Having this in mind, When QuerySets are evaluated can be worth reading.
If you use get()
, e.g. scorm.objects.get(pk=someid)
, and the object does not exists, an ObjectDoesNotExist
exception is raised:
from django.core.exceptions import ObjectDoesNotExist
try:
sc = scorm.objects.get(pk=someid)
except ObjectDoesNotExist:
print ...
Update:
it's also possible to use exists()
:
if scorm.objects.filter(Header__id=qp.id).exists():
....
Returns
True
if the QuerySet contains any results, andFalse
if not. This tries to perform the query in the simplest and fastest way possible, but it does execute nearly the same query as a normal QuerySet query.
I don't think there is a good way of doing what you want. And if you think about it I don't think this is what you really want.
If you would have a dynamic enum, it also means you have to feed it with a dynamic value when you reference it. Maybe with a lot of magic you could achieve some sort of IntelliSense that would take care of this and generate an enum for you in a DLL file. But consider the amount of work it would take, how uneffective it would be to access the database to fetch IntelliSense information as well as the nightmare of version controlling the generated DLL file.
If you really don't want to manually add the enum values (you'll have to add them to the database anyway) use a code generation tool instead, for example T4 templates. Right click+run and you got your enum statically defined in code and you get all the benefits of using enums.
And a lot of tutorials waiting to be googled.
res.json()
returns a promise. Try ...
res.json().then(body => console.log(body));
Extending @Valeh Hajiyev great and clear answer for mysqli
driver tests:
Debug your database connection using this script at the end of ./config/database.php:
/* Your db config here */
$db['default'] = array(
// ...
'dbdriver' => 'mysqli',
// ...
);
/* Connection test: */
echo '<pre>';
print_r($db['default']);
echo '</pre>';
echo 'Connecting to database: ' .$db['default']['database'];
$mysqli_connection = new MySQLi($db['default']['hostname'],
$db['default']['username'],
$db['default']['password'],
$db['default']['database']);
if ($mysqli_connection->connect_error) {
echo "Not connected, error: " . $mysqli_connection->connect_error;
}
else {
echo "Connected.";
}
die( 'file: ' .__FILE__ . ' Line: ' .__LINE__);
You were probably changing the layout margin after it has been drawn. mOldTextView.invalidate() is useless. you needed to call requestLayout() on the parent to relayout the new configuration. When you moved the layout changing code before the drawing took place, everything worked fine.
Not exactly what the user asked, but an easy way to just count unique values:
Google introduced a new function to count unique values in just one step, and you can use this as an input for other formulas:
=COUNTUNIQUE(A1:B10)
You need to use the group(int) of your matcher - group(0) is the entire match, and group(1) is the first group you marked. In the example you specify, group(1) is what comes after "sentence".
I guess a EXIT_ON_CLOSE
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
before System.exit(0)
is better since you can write a Window Listener to make some cleaning operations before actually leaving the app.
That window listener allows you to defined:
public void windowClosing(WindowEvent e) {
displayMessage("WindowListener method called: windowClosing.");
//A pause so user can see the message before
//the window actually closes.
ActionListener task = new ActionListener() {
boolean alreadyDisposed = false;
public void actionPerformed(ActionEvent e) {
if (frame.isDisplayable()) {
alreadyDisposed = true;
frame.dispose();
}
}
};
Timer timer = new Timer(500, task); //fire every half second
timer.setInitialDelay(2000); //first delay 2 seconds
timer.setRepeats(false);
timer.start();
}
public void windowClosed(WindowEvent e) {
//This will only be seen on standard output.
displayMessage("WindowListener method called: windowClosed.");
}
I think it would make more sense to use "Find" function in Excel instead of For Each loop. It works much much faster and it's designed for such actions. Try this:
Sub FindSomeCells(strSearchQuery As String)
Set SearchRange = Worksheets("Sheet1").Range("A1:A100")
FindWhat = strSearchQuery
Set FoundCells = FindAll(SearchRange:=SearchRange, _
FindWhat:=FindWhat, _
LookIn:=xlValues, _
LookAt:=xlWhole, _
SearchOrder:=xlByColumns, _
MatchCase:=False, _
BeginsWith:=vbNullString, _
EndsWith:=vbNullString, _
BeginEndCompare:=vbTextCompare)
If FoundCells Is Nothing Then
Debug.Print "Value Not Found"
Else
For Each FoundCell In FoundCells
FoundCell.Interior.Color = XlRgbColor.rgbLightGreen
Next FoundCell
End If
End Sub
That subroutine searches for some string and returns a collections of cells fullfilling your search criteria. Then you can do whatever you want with the cells in that collection. Forgot to add the FindAll
function definition:
Function FindAll(SearchRange As Range, _
FindWhat As Variant, _
Optional LookIn As XlFindLookIn = xlValues, _
Optional LookAt As XlLookAt = xlWhole, _
Optional SearchOrder As XlSearchOrder = xlByRows, _
Optional MatchCase As Boolean = False, _
Optional BeginsWith As String = vbNullString, _
Optional EndsWith As String = vbNullString, _
Optional BeginEndCompare As VbCompareMethod = vbTextCompare) As Range
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' FindAll
' This searches the range specified by SearchRange and returns a Range object
' that contains all the cells in which FindWhat was found. The search parameters to
' this function have the same meaning and effect as they do with the
' Range.Find method. If the value was not found, the function return Nothing. If
' BeginsWith is not an empty string, only those cells that begin with BeginWith
' are included in the result. If EndsWith is not an empty string, only those cells
' that end with EndsWith are included in the result. Note that if a cell contains
' a single word that matches either BeginsWith or EndsWith, it is included in the
' result. If BeginsWith or EndsWith is not an empty string, the LookAt parameter
' is automatically changed to xlPart. The tests for BeginsWith and EndsWith may be
' case-sensitive by setting BeginEndCompare to vbBinaryCompare. For case-insensitive
' comparisons, set BeginEndCompare to vbTextCompare. If this parameter is omitted,
' it defaults to vbTextCompare. The comparisons for BeginsWith and EndsWith are
' in an OR relationship. That is, if both BeginsWith and EndsWith are provided,
' a match if found if the text begins with BeginsWith OR the text ends with EndsWith.
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Dim FoundCell As Range
Dim FirstFound As Range
Dim LastCell As Range
Dim ResultRange As Range
Dim XLookAt As XlLookAt
Dim Include As Boolean
Dim CompMode As VbCompareMethod
Dim Area As Range
Dim MaxRow As Long
Dim MaxCol As Long
Dim BeginB As Boolean
Dim EndB As Boolean
CompMode = BeginEndCompare
If BeginsWith <> vbNullString Or EndsWith <> vbNullString Then
XLookAt = xlPart
Else
XLookAt = LookAt
End If
' this loop in Areas is to find the last cell
' of all the areas. That is, the cell whose row
' and column are greater than or equal to any cell
' in any Area.
For Each Area In SearchRange.Areas
With Area
If .Cells(.Cells.Count).Row > MaxRow Then
MaxRow = .Cells(.Cells.Count).Row
End If
If .Cells(.Cells.Count).Column > MaxCol Then
MaxCol = .Cells(.Cells.Count).Column
End If
End With
Next Area
Set LastCell = SearchRange.Worksheet.Cells(MaxRow, MaxCol)
On Error GoTo 0
Set FoundCell = SearchRange.Find(what:=FindWhat, _
after:=LastCell, _
LookIn:=LookIn, _
LookAt:=XLookAt, _
SearchOrder:=SearchOrder, _
MatchCase:=MatchCase)
If Not FoundCell Is Nothing Then
Set FirstFound = FoundCell
Do Until False ' Loop forever. We'll "Exit Do" when necessary.
Include = False
If BeginsWith = vbNullString And EndsWith = vbNullString Then
Include = True
Else
If BeginsWith <> vbNullString Then
If StrComp(Left(FoundCell.Text, Len(BeginsWith)), BeginsWith, BeginEndCompare) = 0 Then
Include = True
End If
End If
If EndsWith <> vbNullString Then
If StrComp(Right(FoundCell.Text, Len(EndsWith)), EndsWith, BeginEndCompare) = 0 Then
Include = True
End If
End If
End If
If Include = True Then
If ResultRange Is Nothing Then
Set ResultRange = FoundCell
Else
Set ResultRange = Application.Union(ResultRange, FoundCell)
End If
End If
Set FoundCell = SearchRange.FindNext(after:=FoundCell)
If (FoundCell Is Nothing) Then
Exit Do
End If
If (FoundCell.Address = FirstFound.Address) Then
Exit Do
End If
Loop
End If
Set FindAll = ResultRange
End Function
var x = $($('div').html($('#container').clone())).html();
Updated! 3/24/2015 (scroll below hr)
lonesomeday's answer is absolutely correct, I just thought I would add this tidbit. I had made a method a while back for getting browser in Vanilla JS and eventually curved it to replace jQuery.browser
in later versions of jQuery. It does not interfere with any part of the new jQuery lib, but provides the same functionality of the traditional jQuery.browser
object, as well as some other little features.
New Extended Version!
Is much more thorough for newer browser. Also, 90+% accuracy on mobile testing! I won't say 100%, as I haven't tested on every mobile browser, but new feature adds $.browser.mobile
boolean/string. It's false if not mobile, else it will be a String name for the mobile device or browser (Best Guesss like: Android, RIM Tablet, iPod, etc...).
One possible caveat, may not work with some older (unsupported) browsers as it is completely reliant on userAgent
string.
/* quick & easy cut & paste */
;;(function($){if(!$.browser&&1.9<=parseFloat($.fn.jquery)){var a={browser:void 0,version:void 0,mobile:!1};navigator&&navigator.userAgent&&(a.ua=navigator.userAgent,a.webkit=/WebKit/i.test(a.ua),a.browserArray="MSIE Chrome Opera Kindle Silk BlackBerry PlayBook Android Safari Mozilla Nokia".split(" "),/Sony[^ ]*/i.test(a.ua)?a.mobile="Sony":/RIM Tablet/i.test(a.ua)?a.mobile="RIM Tablet":/BlackBerry/i.test(a.ua)?a.mobile="BlackBerry":/iPhone/i.test(a.ua)?a.mobile="iPhone":/iPad/i.test(a.ua)?a.mobile="iPad":/iPod/i.test(a.ua)?a.mobile="iPod":/Opera Mini/i.test(a.ua)?a.mobile="Opera Mini":/IEMobile/i.test(a.ua)?a.mobile="IEMobile":/BB[0-9]{1,}; Touch/i.test(a.ua)?a.mobile="BlackBerry":/Nokia/i.test(a.ua)?a.mobile="Nokia":/Android/i.test(a.ua)&&(a.mobile="Android"),/MSIE|Trident/i.test(a.ua)?(a.browser="MSIE",a.version=/MSIE/i.test(navigator.userAgent)&&0<parseFloat(a.ua.split("MSIE")[1].replace(/[^0-9\.]/g,""))?parseFloat(a.ua.split("MSIE")[1].replace(/[^0-9\.]/g,"")):"Edge",/Trident/i.test(a.ua)&&/rv:([0-9]{1,}[\.0-9]{0,})/.test(a.ua)&&(a.version=parseFloat(a.ua.match(/rv:([0-9]{1,}[\.0-9]{0,})/)[1].replace(/[^0-9\.]/g,"")))):/Chrome/.test(a.ua)?(a.browser="Chrome",a.version=parseFloat(a.ua.split("Chrome/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Opera/.test(a.ua)?(a.browser="Opera",a.version=parseFloat(a.ua.split("Version/")[1].replace(/[^0-9\.]/g,""))):/Kindle|Silk|KFTT|KFOT|KFJWA|KFJWI|KFSOWI|KFTHWA|KFTHWI|KFAPWA|KFAPWI/i.test(a.ua)?(a.mobile="Kindle",/Silk/i.test(a.ua)?(a.browser="Silk",a.version=parseFloat(a.ua.split("Silk/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Kindle/i.test(a.ua)&&/Version/i.test(a.ua)&&(a.browser="Kindle",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,"")))):/BlackBerry/.test(a.ua)?(a.browser="BlackBerry",a.version=parseFloat(a.ua.split("/")[1].replace(/[^0-9\.]/g,""))):/PlayBook/.test(a.ua)?(a.browser="PlayBook",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/BB[0-9]{1,}; Touch/.test(a.ua)?(a.browser="Blackberry",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Android/.test(a.ua)?(a.browser="Android",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Safari/.test(a.ua)?(a.browser="Safari",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Firefox/.test(a.ua)?(a.browser="Mozilla",a.version=parseFloat(a.ua.split("Firefox/")[1].replace(/[^0-9\.]/g,""))):/Nokia/.test(a.ua)&&(a.browser="Nokia",a.version=parseFloat(a.ua.split("Browser")[1].replace(/[^0-9\.]/g,""))));if(a.browser)for(var b in a.browserArray)a[a.browserArray[b].toLowerCase()]=a.browser==a.browserArray[b];$.extend(!0,$.browser={},a)}})(jQuery);
/* quick & easy cut & paste */
jsFiddle "jQuery Plugin: Get Browser (Extended Alt Edition)"
/** jQuery.browser_x000D_
* @author J.D. McKinstry (2014)_x000D_
* @description Made to replicate older jQuery.browser command in jQuery versions 1.9+_x000D_
* @see http://jsfiddle.net/SpYk3/wsqfbe4s/_x000D_
*_x000D_
* @extends jQuery_x000D_
* @namespace jQuery.browser_x000D_
* @example jQuery.browser.browser == 'browserNameInLowerCase'_x000D_
* @example jQuery.browser.version_x000D_
* @example jQuery.browser.mobile @returns BOOLEAN_x000D_
* @example jQuery.browser['browserNameInLowerCase']_x000D_
* @example jQuery.browser.chrome @returns BOOLEAN_x000D_
* @example jQuery.browser.safari @returns BOOLEAN_x000D_
* @example jQuery.browser.opera @returns BOOLEAN_x000D_
* @example jQuery.browser.msie @returns BOOLEAN_x000D_
* @example jQuery.browser.mozilla @returns BOOLEAN_x000D_
* @example jQuery.browser.webkit @returns BOOLEAN_x000D_
* @example jQuery.browser.ua @returns navigator.userAgent String_x000D_
*/_x000D_
;;(function($){if(!$.browser&&1.9<=parseFloat($.fn.jquery)){var a={browser:void 0,version:void 0,mobile:!1};navigator&&navigator.userAgent&&(a.ua=navigator.userAgent,a.webkit=/WebKit/i.test(a.ua),a.browserArray="MSIE Chrome Opera Kindle Silk BlackBerry PlayBook Android Safari Mozilla Nokia".split(" "),/Sony[^ ]*/i.test(a.ua)?a.mobile="Sony":/RIM Tablet/i.test(a.ua)?a.mobile="RIM Tablet":/BlackBerry/i.test(a.ua)?a.mobile="BlackBerry":/iPhone/i.test(a.ua)?a.mobile="iPhone":/iPad/i.test(a.ua)?a.mobile="iPad":/iPod/i.test(a.ua)?a.mobile="iPod":/Opera Mini/i.test(a.ua)?a.mobile="Opera Mini":/IEMobile/i.test(a.ua)?a.mobile="IEMobile":/BB[0-9]{1,}; Touch/i.test(a.ua)?a.mobile="BlackBerry":/Nokia/i.test(a.ua)?a.mobile="Nokia":/Android/i.test(a.ua)&&(a.mobile="Android"),/MSIE|Trident/i.test(a.ua)?(a.browser="MSIE",a.version=/MSIE/i.test(navigator.userAgent)&&0<parseFloat(a.ua.split("MSIE")[1].replace(/[^0-9\.]/g,""))?parseFloat(a.ua.split("MSIE")[1].replace(/[^0-9\.]/g,"")):"Edge",/Trident/i.test(a.ua)&&/rv:([0-9]{1,}[\.0-9]{0,})/.test(a.ua)&&(a.version=parseFloat(a.ua.match(/rv:([0-9]{1,}[\.0-9]{0,})/)[1].replace(/[^0-9\.]/g,"")))):/Chrome/.test(a.ua)?(a.browser="Chrome",a.version=parseFloat(a.ua.split("Chrome/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Opera/.test(a.ua)?(a.browser="Opera",a.version=parseFloat(a.ua.split("Version/")[1].replace(/[^0-9\.]/g,""))):/Kindle|Silk|KFTT|KFOT|KFJWA|KFJWI|KFSOWI|KFTHWA|KFTHWI|KFAPWA|KFAPWI/i.test(a.ua)?(a.mobile="Kindle",/Silk/i.test(a.ua)?(a.browser="Silk",a.version=parseFloat(a.ua.split("Silk/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Kindle/i.test(a.ua)&&/Version/i.test(a.ua)&&(a.browser="Kindle",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,"")))):/BlackBerry/.test(a.ua)?(a.browser="BlackBerry",a.version=parseFloat(a.ua.split("/")[1].replace(/[^0-9\.]/g,""))):/PlayBook/.test(a.ua)?(a.browser="PlayBook",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/BB[0-9]{1,}; Touch/.test(a.ua)?(a.browser="Blackberry",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Android/.test(a.ua)?(a.browser="Android",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Safari/.test(a.ua)?(a.browser="Safari",a.version=parseFloat(a.ua.split("Version/")[1].split("Safari")[0].replace(/[^0-9\.]/g,""))):/Firefox/.test(a.ua)?(a.browser="Mozilla",a.version=parseFloat(a.ua.split("Firefox/")[1].replace(/[^0-9\.]/g,""))):/Nokia/.test(a.ua)&&(a.browser="Nokia",a.version=parseFloat(a.ua.split("Browser")[1].replace(/[^0-9\.]/g,""))));if(a.browser)for(var b in a.browserArray)a[a.browserArray[b].toLowerCase()]=a.browser==a.browserArray[b];$.extend(!0,$.browser={},a)}})(jQuery);_x000D_
/* - - - - - - - - - - - - - - - - - - - */_x000D_
_x000D_
var b = $.browser;_x000D_
console.log($.browser); // see console, working example of jQuery Plugin_x000D_
console.log($.browser.chrome);_x000D_
_x000D_
for (var x in b) {_x000D_
if (x != 'init')_x000D_
$('<tr />').append(_x000D_
$('<th />', { text: x }),_x000D_
$('<td />', { text: b[x] })_x000D_
).appendTo($('table'));_x000D_
}
_x000D_
table { border-collapse: collapse; }_x000D_
th, td { border: 1px solid; padding: .25em .5em; vertical-align: top; }_x000D_
th { text-align: right; }_x000D_
_x000D_
textarea { height: 500px; width: 100%; }
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>_x000D_
<table></table>
_x000D_
You might want to do this.
input[type=checkbox] {
-ms-transform: scale(2); /* IE */
-moz-transform: scale(2); /* FF */
-webkit-transform: scale(2); /* Safari and Chrome */
-o-transform: scale(2); /* Opera */
padding: 10px;
}
VSCode is incredibly faster than VS. Files open instantly from Unity. VS is very slow. VSCode launches instantly. VS takes forever to launch.
VS can literally compile code, build apps and so on, it's a huge IDE like Unity itself or XCode. VSCode is indeed "just" a full-featured text editor. VSCode is NOT a compiler (far less a huge, build-everything system that can literally create apps and software of all types): VSCode is literally "just a text editor".
With VSCode, you DO need to install the "Visual Studio Code" package. (Not to be confused with the "Visual Studio" package.) (It seems to me that VS works fine without the VS package, but, with VS Code, you must install Unity's VSCode package.)
When you first download and install VSCode, simply open any C# file on your machine. It will instantly prompt you to install the needed C# package. This is harmless and easy.
Unfortunately VSCode generally has only one window! You cannot, really, easily drag files to separate windows. If this is important to you, you may need to go with VS.
The biggest problem with VS is that the overall concept of settings and preferences are absolutely horrible. In VS, it is all-but impossible to change the font, etc. In contrast, VSCode has FANTASTIC preferences - dead simple, never a problem.
As far as I can see, every single feature in VS which you use in Unity is present in VSCode. (So, code coloring, jump to definitions, it understands/autocompletes every single thing in Unity, it opens from Unity, double clicking something in the Unity console opens the file to that line, etc etc)
If you are used to VS. And you want to change to VSCode. It's always hard changing editors, they are so intimate, but it's pretty similar; you won't have a big heartache.
In short if you're a VS for Unity3D user,
and you're going to try VSCode...
VSCode is on the order of 19 trillion times faster in every way. It will blow your mind.
It does seem to have every feature.
Basically VS is the world's biggest IDE and application building system: VSCode is just an editor. (Indeed, that's exactly what you want with Unity, since Unity itself is the IDE.)
Don't forget to just click to install the relevant Unity package.
If I'm not mistaken, there is no reason whatsoever to use VS with Unity.
Unity is an IDE so you just need a text editor, and that is what VSCode is. VSCode is hugely better in both speed and preferences. The only possible problem - multiple-windows are a bit clunky in VSCode!
If you are using VS with Unity. There is an infuriating problem where often VS will try to open twice, that is you will end up with two or more copies of VS running. Nobody has ever been able to fix this or figure out what the hell causes it. Fortunately, this problem never happens with VSCode.
There are no installers, etc etc etc. On the download page, you download a zipped Mac app. Put it in the Applications folder and you're done.
Bizarrely there's no menu entry / docu whatsoever for folding, but here are the keys:
https://stackoverflow.com/a/30077543/294884
Particularly for Mac users who may find the colors strange:
Priceless post #1:
https://stackoverflow.com/a/45640244/294884
Priceless post #2:
https://stackoverflow.com/a/63303503/294884
To keep the "Explorer" list of files on the left tidy, in the Unity case:
One pragmatic solution is to add blank labels of the same height and color as the main label. Set the leading/trailing space to the main label to zero, align vertical centers, and make the width your desired margin.
What about BASE58 encoding the URL? Like for example flickr does.
# note the missing lowercase L and the zero etc.
BASE58 = '123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ'
url = ''
while node_id >= 58:
div, mod = divmod(node_id, 58)
url = BASE58[mod] + url
node_id = int(div)
return 'http://short.com/%s' % BASE58[node_id] + url
Turning that back into a number isn't a big deal either.
Alternate form of the answer by @rumpel
with open(filename, 'w'): pass
I once copied these files to the database storage folder for a mysql database which was working, started the db and waited for it to "repair" the files, then extracted them with mysqldump.
this question seem quite old but incase you come pass it, you can use the PHP inbuilt function array_push() to push data in an array using the example below.
<?php
$item = array();
foreach($group_membership as $i => $username) {
array_push($item, $username);
}
print_r($items);
?>
yeah, its so simple to fix that, just open that file by notepad++ and step follow --> Encoding\ encoding UTF-8 without BOM. then save that. It work for me as well!
In batch, the >
is a redirection sign used to output data into a text file. The compare op's available (And recommended) for cmd are below (quoted from the if /?
help):
where compare-op may be one of:
EQU - equal
NEQ - not equal
LSS - less than
LEQ - less than or equal
GTR - greater than
GEQ - greater than or equal
That should explain what you want. The only other compare-op is ==
which can be switched with the if not
parameter. Other then that rely on these three letter ones.
I know that this is super-duper old, but on the off chance that someone comes looking for this, as of Visual Basic 14, Vb supports interpolation. Sooooo cool!
Example:
SQLQueryString = $"
Insert into Employee values(
{txtEmployeeNo},
{txtContractsStartDate},
{txtSeatNo},
{txtFloor},
{txtLeaves}
)"
It works. Documentation Here
Edit: After writing this, I realized that the OP was talking about VBA. This will not work in VBA!!! However, I will leave this up here, because as someone new to VB, I stumbled upon this question looking for a solution to just this problem in VB.net. If this helps someone else, great.
Here are the significant differences between lateinit var
and by lazy { ... }
delegated property:
lazy { ... }
delegate can only be used for val
properties, whereas lateinit
can only be applied to var
s, because it can't be compiled to a final
field, thus no immutability can be guaranteed;
lateinit var
has a backing field which stores the value, and by lazy { ... }
creates a delegate object in which the value is stored once calculated, stores the reference to the delegate instance in the class object and generates the getter for the property that works with the delegate instance. So if you need the backing field present in the class, use lateinit
;
In addition to val
s, lateinit
cannot be used for nullable properties or Java primitive types (this is because of null
used for uninitialized value);
lateinit var
can be initialized from anywhere the object is seen from, e.g. from inside a framework code, and multiple initialization scenarios are possible for different objects of a single class. by lazy { ... }
, in turn, defines the only initializer for the property, which can be altered only by overriding the property in a subclass. If you want your property to be initialized from outside in a way probably unknown beforehand, use lateinit
.
Initialization by lazy { ... }
is thread-safe by default and guarantees that the initializer is invoked at most once (but this can be altered by using another lazy
overload). In the case of lateinit var
, it's up to the user's code to initialize the property correctly in multi-threaded environments.
A Lazy
instance can be saved, passed around and even used for multiple properties. On contrary, lateinit var
s do not store any additional runtime state (only null
in the field for uninitialized value).
If you hold a reference to an instance of Lazy
, isInitialized()
allows you to check whether it has already been initialized (and you can obtain such instance with reflection from a delegated property). To check whether a lateinit property has been initialized, you can use property::isInitialized
since Kotlin 1.2.
A lambda passed to by lazy { ... }
may capture references from the context where it is used into its closure.. It will then store the references and release them only once the property has been initialized. This may lead to object hierarchies, such as Android activities, not being released for too long (or ever, if the property remains accessible and is never accessed), so you should be careful about what you use inside the initializer lambda.
Also, there's another way not mentioned in the question: Delegates.notNull()
, which is suitable for deferred initialization of non-null properties, including those of Java primitive types.
Many ways to do this. You could use wildcards in double brackets:
str="/some/directory/file"
if [[ $str == /* ]]; then echo 1; else echo 0; fi
You can use substring expansion:
if [[ ${str:0:1} == "/" ]] ; then echo 1; else echo 0; fi
Or a regex:
if [[ $str =~ ^/ ]]; then echo 1; else echo 0; fi
ECMAScript 5 does introduce Object.defineProperty
:
Object.defineProperty (window,'CONSTANT',{ value : 5, writable: false });
It's supported in every modern browser (as well as IE = 9).
See also: Object.defineProperty in ES5?
A root-relative URL starts with a /
character, to look something like <a href="/directoryInRoot/fileName.html">link text</a>
.
The link you posted: <a href="fruits/index.html">Back to Fruits List</a>
is linking to an html file located in a directory named fruits
, the directory being in the same directory as the html page in which this link appears.
To make it a root-relative URL, change it to:
<a href="/fruits/index.html">Back to Fruits List</a>
Edited in response to question, in comments, from OP:
So doing / will make it relative to www.example.com, is there a way to specify what the root is, e.g what if i want the root to be www.example.com/fruits in www.example.com/fruits/apples/apple.html?
Yes, prefacing the URL, in the href
or src
attributes, with a /
will make the path relative to the root directory. For example, given the html page at www.example.com/fruits/apples.html
, the a
of href="/vegetables/carrots.html"
will link to the page www.example.com/vegetables/carrots.html
.
The base
tag element allows you to specify the base-uri for that page (though the base
tag would have to be added to every page in which it was necessary for to use a specific base, for this I'll simply cite the W3's example:
For example, given the following BASE declaration and A declaration:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<HTML>
<HEAD>
<TITLE>Our Products</TITLE>
<BASE href="http://www.aviary.com/products/intro.html">
</HEAD>
<BODY>
<P>Have you seen our <A href="../cages/birds.gif">Bird Cages</A>?
</BODY>
</HTML>
the relative URI "../cages/birds.gif" would resolve to:
http://www.aviary.com/cages/birds.gif
Example quoted from: http://www.w3.org/TR/html401/struct/links.html#h-12.4.
Suggested reading:
date must be insert with two apostrophes' As example if the date is 2018/10/20. It can insert from these query
Query -
insert into run(id,name,dob)values(&id,'&name','2018-10-20')
function getMethods(obj)
{
var res = [];
for(var m in obj) {
if(typeof obj[m] == "function") {
res.push(m)
}
}
return res;
}
What's the default superuser username/password for postgres after a new install?:
CAUTION The answer about changing the UNIX password for "postgres" through "$ sudo passwd postgres" is not preferred, and can even be DANGEROUS!
This is why: By default, the UNIX account "postgres" is locked, which means it cannot be logged in using a password. If you use "sudo passwd postgres", the account is immediately unlocked. Worse, if you set the password to something weak, like "postgres", then you are exposed to a great security danger. For example, there are a number of bots out there trying the username/password combo "postgres/postgres" to log into your UNIX system.
What you should do is follow Chris James's answer:
sudo -u postgres psql postgres # \password postgres Enter new password:
To explain it a little bit...
Use the translate()
method:
>>> s = 'EXAMPLE'
>>> s.translate(None, 'M')
'EXAPLE'
I like RestClient. It encapsulates net/http with cool features like multipart form data:
require 'rest_client'
RestClient.post('http://localhost:3000/foo',
:name_of_file_param => File.new('/path/to/file'))
It also supports streaming.
gem install rest-client
will get you started.
This will only works for everything except [0..2]
boolean isPositive = (n % (n - 1)) * n == n;
You can make a better solution like this (works except for [0..1])
boolean isPositive = ((n % (n - 0.5)) * n) / 0.5 == n;
You can get better precision by changing the 0.5 part with something like 2^m (m integer):
boolean isPositive = ((n % (n - 0.03125)) * n) / 0.03125 == n;
if your certificate is not valid, it will have a red "x" and state the reason why. Generally the reason is "This certificate has expired" or "This certificate was signed by an unknown authority.
to solve this you need to do the following step.
Also for openCV in python you can do:
img = cv2.imread('myImage.jpg')
height, width, channels = img.shape
Java 8 Style for a given date
LocalDate today = LocalDate.of(1982, Month.AUGUST, 31);
System.out.println(today.format(DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).withLocale(Locale.ENGLISH)));
System.out.println(today.format(DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).withLocale(Locale.FRENCH)));
System.out.println(today.format(DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).withLocale(Locale.JAPANESE)));
The validation was working for me on form submission, but it wasn't doing the reactive event driven validation on input to the chosen select lists.
To fix this I added the following to manually trigger the jquery validation event that gets added by the library:
$(".chosen-select").each(function() {
$(this).chosen().on("change", function() {
$(this).parents(".form-group").find("select.form-control").trigger("focusout.validate");
});
});
jquery.validate will now add the .valid
class to the underlying select list.
Caveat: This does require a consistent html pattern for your form inputs. In my case, each input filed is wrapped in a div.form-group
, and each input has .form-control
.
in sql... we use it for "not equals"... I am guessing, its the same in VB aswell.
you can define it like this :
let table = $('.datatable-sales').DataTable({
processing: true,
responsive: true,
serverSide: true,
ajax: {
url: "<?php echo site_url("your url"); ?>",
cache: false,
type: "POST",
data: {
<?php echo your api; ?>,
}
}
or like this :
$.get({url: <?php echo json_encode(site_url('your api'))?>, cache: false})
hope it helps
dt
is nullable
you need to access its Value
if (datetime.HasValue)
dt = datetime.Value;
It is important to remember that it can be NULL
. That is why the nullable
struct has the HasValue
property that tells you if it is NULL
or not.
You can also use the null-coalescing operator
??
to assign a default value
dt = datetime ?? DateTime.Now;
This will assign the value on the right if the value on the left is NULL
Your guess is the correct one. The only thing you have to remember is that the member function template definition (in addition to the declaration) should be in the header file, not the cpp, though it does not have to be in the body of the class declaration itself.
I'm writing this answer w.r.t. to python 3, as I've initially got the same problem.
I was supposed to get data from arduino using PySerial
, and write them in a .csv file. Each reading in my case ended with '\r\n'
, so newline was always separating each line.
In my case, newline=''
option didn't work. Because it showed some error like :
with open('op.csv', 'a',newline=' ') as csv_file:
ValueError: illegal newline value: ''
So it seemed that they don't accept omission of newline here.
Seeing one of the answers here only, I mentioned line terminator in the writer object, like,
writer = csv.writer(csv_file, delimiter=' ',lineterminator='\r')
and that worked for me for skipping the extra newlines.
TimeSpan.FromTicks(DateTime.Now.Ticks)
I solved the problem by adding an fake autocomplete name for all inputs.
$("input").attr("autocomplete", "fake-name-disable-autofill");
This is old but here's another way.
#include <stdio.h>
#define atoa(x) #x
int main(int argc, char *argv[])
{
char *string = atoa(1234567890);
printf("%s\n", string);
return 0;
}
I think it comes from this line in your XML file:
<context:component-scan base-package="org.assessme.com.controller." />
Replace it by:
<context:component-scan base-package="org.assessme.com." />
It is because your Autowired service is not scanned by Spring since it is not in the right package.
Don't forget: to get HTTPS contents, your OPENSSL extension should be enabled in your php.ini. (how to get contents of site use HTTPS)
Small enhancement to perfectly valid @hmjd's answer: you can use following syntax:
class A {
final Set<String> strings = new HashSet<>() {{
add("val1");
add("val2");
}};
// ...
if (strings.contains(str.toLowerCase())) {
}
// ...
}
It allows you to initialize you Set
in-place.
The best approach to embed a SWF into an HTML page is to use SWFObject.
It is a simple open-source JavaScript library that is easy-to-use and standards-friendly method to embed Flash content.
It also offers Flash player version detection. If the user does not have the version of Flash required or has JavaScript disabled, they will see an alternate content. You can also use this library to trigger a Flash player upgrade. Once the user has upgraded, they will be redirected back to the page.
An example from the documentation:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<title>SWFObject dynamic embed - step 3</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<script type="text/javascript" src="swfobject.js"></script>
<script type="text/javascript">
swfobject.embedSWF("myContent.swf", "myContent", "300", "120", "9.0.0");
</script>
</head>
<body>
<div id="myContent">
<p>Alternative content</p>
</div>
</body>
</html>
A good tool to use along with this is the SWFObject HTML and JavaScript generator. It basically generates the HTML and JavaScript you need to embed the Flash using SWFObject. Comes with a very simple UI for you to input your parameters.
It Is highly recommended and very simple to use.
$query = "ALTER TABLE `" . $table_prefix . "posts_to_bookmark`
ADD COLUMN `ping_status` INT(1) NOT NULL
AFTER `<TABLE COLUMN BEFORE THIS COLUMN>`";
I believe you need to have ADD COLUMN
and use AFTER
, not BEFORE
.
In case you want to place column at the beginning of a table, use the FIRST
statement:
$query = "ALTER TABLE `" . $table_prefix . "posts_to_bookmark`
ADD COLUMN `ping_status` INT(1) NOT NULL
FIRST";
Using -x test
skip test execution but this also exclude test code compilation.
gradle build -x test
In our case, we have a CI/CD process where one goal is compilation and next goal is testing (Build -> Test).
So, for our first Build
goal we wanted to ensure that the whole project compiles well. For this we have used:
./gradlew build testClasses -x test
On the next goal we simply execute tests.
Instead of initializing the variables with arbitrary values (for example int smallest = 9999, largest = 0
) it is safer to initialize the variables with the largest and smallest values representable by that number type (that is int smallest = Integer.MAX_VALUE, largest = Integer.MIN_VALUE
).
Since your integer array cannot contain a value larger than Integer.MAX_VALUE
and smaller than Integer.MIN_VALUE
your code works across all edge cases.
Use the modern version of the Fisher–Yates shuffle algorithm:
/**
* Shuffles array in place.
* @param {Array} a items An array containing the items.
*/
function shuffle(a) {
var j, x, i;
for (i = a.length - 1; i > 0; i--) {
j = Math.floor(Math.random() * (i + 1));
x = a[i];
a[i] = a[j];
a[j] = x;
}
return a;
}
/**
* Shuffles array in place. ES6 version
* @param {Array} a items An array containing the items.
*/
function shuffle(a) {
for (let i = a.length - 1; i > 0; i--) {
const j = Math.floor(Math.random() * (i + 1));
[a[i], a[j]] = [a[j], a[i]];
}
return a;
}
Note however, that swapping variables with destructuring assignment causes significant performance loss, as of October 2017.
var myArray = ['1','2','3','4','5','6','7','8','9'];
shuffle(myArray);
Using Object.defineProperty
(method taken from this SO answer) we can also implement this function as a prototype method for arrays, without having it show up in loops such as for (i in arr)
. The following will allow you to call arr.shuffle()
to shuffle the array arr
:
Object.defineProperty(Array.prototype, 'shuffle', {
value: function() {
for (let i = this.length - 1; i > 0; i--) {
const j = Math.floor(Math.random() * (i + 1));
[this[i], this[j]] = [this[j], this[i]];
}
return this;
}
});
String value = "True";
boolean result = value.equalsIgnoreCase("true") ? true : false;
Very easy solution:
In Visual Studio, go to Tools/Library Package Manager/Package Manager Console
<PM> Install-Package Microsoft.Web.InfraStructure
Have a nice time
Follow the below steps:
I suppose you are using a relatively old Java Version without SHA-256. So you must add the BouncyCastle Provider to the already provided 'Security Providers' in your java version.
// NEEDED if you are using a Java version without SHA-256
Security.addProvider(new BouncyCastleProvider());
// then go as usual
MessageDigest md = MessageDigest.getInstance("SHA-256");
String text = "my string...";
md.update(text.getBytes("UTF-8")); // or UTF-16 if needed
byte[] digest = md.digest();
I had this or a similar problem after installing Tomcat.
The other answers didn't quite work, but got me on the right path. I answered this at https://stackoverflow.com/a/20762179/3128838 after discovering a YouTube video showing the exact problem I was having.
mysqli_num_rows
is used in php 5 and above.
e.g
<?php
$con=mysqli_connect("localhost","my_user","my_password","my_db");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$sql="SELECT Lastname,Age FROM Persons ORDER BY Lastname";
if ($result=mysqli_query($con,$sql))
{
// Return the number of rows in result set
$rowcount=mysqli_num_rows($result);
printf("Result set has %d rows.\n",$rowcount);
// Free result set
mysqli_free_result($result);
}
mysqli_close($con);
?>
Alex's answer is the right one, but for posterity here's another option: create a new empty database. If you use CREATE DATABASE without specifying a target dir you get... the default data / log directories. Easy.
Personally however I'd probably either:
ps: 20gb is not huge, even in 2015. But it's all relative.
A simple InputStream will do
byte[] fileToBytes(File file){
byte[] bytes = new byte[0];
try(FileInputStream inputStream = new FileInputStream(file)) {
bytes = new byte[inputStream.available()];
//noinspection ResultOfMethodCallIgnored
inputStream.read(bytes);
} catch (IOException e) {
e.printStackTrace();
}
return bytes;
}
If you haven't yet pushed your changes, you can also do a soft reset:
git reset --soft HEAD^
This will revert the commit, but put the committed changes back into your index. Assuming the branches are relatively up-to-date with regard to each other, git will let you do a checkout into the other branch, whereupon you can simply commit:
git checkout branch
git commit
The disadvantage is that you need to re-enter your commit message.
MongoDB needs data directory to store data.
Default path is /data/db
When you start MongoDB engine, it searches this directory which is missing in your case. Solution is create this directory and assign rwx
permission to user.
If you want to change the path of your data directory then you should specify it while starting mongod server like,
mongod --dbpath /data/<path> --port <port no>
This should help you start your mongod server with custom path and port.
Apart from sp_who
, you can also use the "undocumented" sp_who2
system stored procedure which gives you more detailed information. See Difference between sp_who and sp_who2.
You could try this.
In windows go to Administrative Tools->Services And see scroll down to where it says Oracle[instanceNameHere] and see if the listener and the service itself are running. You might have to start it. You can also set it to start automatically when you right-click on it and go to properties.
There are a few ways to handle that; Vanilla JavaScript can do it quite nicely:
function code(e) {
e = e || window.event;
return(e.keyCode || e.which);
}
window.onload = function(){
document.onkeypress = function(e){
var key = code(e);
// do something with key
};
};
Or a more structured way of handling it:
(function(d){
var modern = (d.addEventListener), event = function(obj, evt, fn){
if(modern) {
obj.addEventListener(evt, fn, false);
} else {
obj.attachEvent("on" + evt, fn);
}
}, code = function(e){
e = e || window.event;
return(e.keyCode || e.which);
}, init = function(){
event(d, "keypress", function(e){
var key = code(e);
// do stuff with key here
});
};
if(modern) {
d.addEventListener("DOMContentLoaded", init, false);
} else {
d.attachEvent("onreadystatechange", function(){
if(d.readyState === "complete") {
init();
}
});
}
})(document);
Note that double quotes strings escape \'s.
'C:\projects\blah.dll'.split('\\').last
How about
$date = Carbon::now();
return $date->toArray();
will give you
{ "year": 2019, "month": 1, "day": 27, "dayOfWeek": 0, "dayOfYear": 26, "hour": 10, "minute": 28, "second": 55, "englishDayOfWeek": "Sunday", "micro": 967721, "timestamp": 1548570535, "formatted": "2019-01-27 10:28:55", "timezone": { "timezone_type": 3, "timezone": "Asia/Dubai" } }
The same props are accessible through
return [ 'date' => $date->format('Y-m-d'), 'year' => $date->year, 'month' => $date->month, 'day' => $date->day, 'hour' => $date->hour, 'isSaturday' => $date->isSaturday(), ];
The maximum row size for an InnoDB table, which applies to data stored locally within a database page, is slightly less than half a page for 4KB, 8KB, 16KB, and 32KB
For 16kb pages (default), we can calculate:
Slightly less than half a page 8126 / Number of bytes to threshold for overflow 767 = 10.59 fields of 767 bytes maximum
Basically, you could max out a row with:
Remember, it will only overflow to an overflow page if the field is > 767 bytes. If there are too many fields of 767 bytes, it will bust (passing beyond max row_size). Not usual with latin1 but very possible with utf-8 if the developers aren’t careful.
For this case, I think you could possibly bump the innodb_page_size to 32kb.
in my.cnf:
innodb_page_size=32K
References:
or convert gilly3
's excellent answer to a jQuery method:
$.fn.info = function () {
var data = {};
[].forEach.call(this.get(0).attributes, function (attr) {
if (/^data-/.test(attr.name)) {
var camelCaseName = attr.name.substr(5).replace(/-(.)/g, function ($0, $1) {
return $1.toUpperCase();
});
data[camelCaseName] = attr.value;
}
});
return data;
}
Using: $('.foo').info()
;
Create a new keypair: (go with the defaults)
ssh-keygen
Copy the public key to the server: (password for the last time)
ssh-copy-id [email protected]
From now on the server should recognize your key and not ask you for the password anymore:
ssh [email protected]
The simple solution you need to follow is
import { DomSanitizer } from '@angular/platform-browser';
constructor(private sanitizer: DomSanitizer){}
transformYourHtml(htmlTextWithStyle) {
return this.sanitizer.bypassSecurityTrustHtml(htmlTextWithStyle);
}
Beware:
There are also cells which are seemingly blank
, but are not truly empty but containg "" or something that is called NULL
in other languages. As an example, when a formula results in "" or such result is copied to a cell, the formula
ISBLANK(A1)
returns FALSE
. That means the cell is not truly empty.
The way to go there is to use enter code here
COUNTBLANK(A1)
Which finds both truly empty cells and those containing "". See also this very good answer here
Include your image in the searchBar
div, it will do the task for you
<div id="searchBar">
<img src="img/logo.png" />
<input type="text" />
</div>
This code will work only in Firefox:
<select>
<option value="volvo" style="background-image:url(images/volvo.png);">Volvo</option>
<option value="saab" style="background-image:url(images/saab.png);">Saab</option>
<option value="honda" style="background-image:url(images/honda.png);">Honda</option>
<option value="audi" style="background-image:url(images/audi.png);">Audi</option>
</select>
Edit (April 2018):
Firefox does not support this anymore.
You can easily create a timer functionality by using setInterval.Below is the code which you can use it to create the timer.
http://jsfiddle.net/ayyadurai/GXzhZ/1/
window.onload = function() {_x000D_
var minute = 5;_x000D_
var sec = 60;_x000D_
setInterval(function() {_x000D_
document.getElementById("timer").innerHTML = minute + " : " + sec;_x000D_
sec--;_x000D_
if (sec == 00) {_x000D_
minute --;_x000D_
sec = 60;_x000D_
if (minute == 0) {_x000D_
minute = 5;_x000D_
}_x000D_
}_x000D_
}, 1000);_x000D_
}
_x000D_
Registration closes in <span id="timer">05:00<span> minutes!
_x000D_
I tried all of the above which did not work for me. I ended up just going with PUT (inspiration found here) and just changed my server side logic to perform a delete on this url call. (django rest framework function override).
e.g.
.put(`http://127.0.0.1:8006/api/updatetoken/20`, bayst)
.then((response) => response.data)
.catch((error) => { throw error.response.data; });
The problem here, as explained in other comments, is that the pointer is being dereference without being properly initialized. Operating systems like Linux keep the lowest addresses (eg first 32MB: 0x00_0000 -0x200_0000) out of the virtual address space of a process. This is done because dereferencing zeroed non-initialized pointers is a common mistake, like in this case. So when this type of mistake happens, instead of actually reading a random variable that happens to be at address 0x0 (but not the memory address the pointer would be intended for if initialized properly), the pointer would be reading from a memory address outside of the process's virtual address space. This causes a page fault, which results in a segmentation fault, and a signal is sent to the process to kill it. That's why you are getting the access violation error.
Dim resources As Object = My.Resources.ResourceManager
PictureBoxName.Image = resources.GetObject("Company_Logo")
It's impossible if the method is declared in the derived class as overrides
. to do that, the method in the derived class should be declared as new
:
public class Base {
public virtual string X() {
return "Base";
}
}
public class Derived1 : Base
{
public new string X()
{
return "Derived 1";
}
}
public class Derived2 : Base
{
public override string X() {
return "Derived 2";
}
}
Derived1 a = new Derived1();
Base b = new Derived1();
Base c = new Derived2();
a.X(); // returns Derived 1
b.X(); // returns Base
c.X(); // returns Derived 2
Xamarin Forms Android:
//---------------------------------------------------------
public void OpenSettings()
//---------------------------------------------------------
{
var intent = new Intent(Android.Provider.Settings.ActionApplicationDetailsSettings,
Android.Net.Uri.Parse("package:" + Forms.Context.PackageName));
Forms.Context.StartActivity(intent);
}
Using Between condition
SELECT *
FROM TEST
WHERE COLUMN_NAME BETWEEN x AND y ;
Or using Just operators,
SELECT *
FROM TEST
WHERE COLUMN_NAME >= x AND COLUMN_NAME <= y;
The current implementation of async
/ await
only supports the await
keyword inside of async
functions Change your start
function signature so you can use await
inside start
.
var start = async function(a, b) {
}
For those interested, the proposal for top-level await
is currently in Stage 2: https://github.com/tc39/proposal-top-level-await
public static int PayableMonthsInDuration(DateTime StartDate, DateTime EndDate)
{
int sy = StartDate.Year; int sm = StartDate.Month; int count = 0;
do
{
count++;if ((sy == EndDate.Year) && (sm >= EndDate.Month)) { break; }
sm++;if (sm == 13) { sm = 1; sy++; }
} while ((EndDate.Year >= sy) || (EndDate.Month >= sm));
return (count);
}
This solution is for Rental/subscription calculation, where difference doesn't means to be subtraction, it's meant to be the span in within those two dates.
You can do like this
sqlcmd -S <server Name> -U sa -P sapassword -i inputquery_file_name -o outputfile_name
From your command prompt run sqlcmd /?
to get all the options you can use with sqlcmd
utility
see there link was very nice and simple. its working fine... u don't want any library its working fine. click here
OnTouchListener gestureListener = new View.OnTouchListener() {
private int padding = 0;
private int initialx = 0;
private int currentx = 0;
private ViewHolder viewHolder;
public boolean onTouch(View v, MotionEvent event) {
if ( event.getAction() == MotionEvent.ACTION_DOWN) {
padding = 0;
initialx = (int) event.getX();
currentx = (int) event.getX();
viewHolder = ((ViewHolder) v.getTag());
}
if ( event.getAction() == MotionEvent.ACTION_MOVE) {
currentx = (int) event.getX();
padding = currentx - initialx;
}
if ( event.getAction() == MotionEvent.ACTION_UP ||
event.getAction() == MotionEvent.ACTION_CANCEL) {
padding = 0;
initialx = 0;
currentx = 0;
}
if(viewHolder != null) {
if(padding == 0) {
v.setBackgroundColor(0xFF000000 );
if(viewHolder.running)
v.setBackgroundColor(0xFF058805);
}
if(padding > 75) {
viewHolder.running = true;
v.setBackgroundColor(0xFF00FF00 );
viewHolder.icon.setImageResource(R.drawable.clock_running);
}
if(padding < -75) {
viewHolder.running = false;
v.setBackgroundColor(0xFFFF0000 );
}
v.setPadding(padding, 0,0, 0);
}
return true;
}
};
Found an answer myself, this blog helped: http://thingsyoudidntknowaboutjenkins.tumblr.com/post/23596855946/git-plugin-part-3
Basically need to execute:
git checkout master
before modifying any files
then
git commit -am "Updated version number"
after modified files
and then use post build action of Git Publisher with an option of Merge Results which will push changes to github on successful build.
This helped me. Sharing it for someone who might come up with same issue.
android {
....
defaultConfig {
....
ndk {
abiFilters "armeabi", "armeabi-v7a", "x86", "mips"
}
}
}
JSON.stringify
takes more optional arguments.
Try:
JSON.stringify({a:1,b:2,c:{d:1,e:[1,2]}}, null, 4); // Indented 4 spaces
JSON.stringify({a:1,b:2,c:{d:1,e:[1,2]}}, null, "\t"); // Indented with tab
From:
How can I beautify JSON programmatically?
Should work in modern browsers, and it is included in json2.js if you need a fallback for browsers that don't support the JSON helper functions. For display purposes, put the output in a <pre>
tag to get newlines to show.
The shortcut key is ctrl+] to indentation and ctrl +[ to unindent
Use this
data: '{"username":"' + username + '"}',
I try a lot of syntax to work with laravel it work for me for laravel 4.2 + ajax.
Use absolute positioning
.child-div {
position:absolute;
left:0;
right:0;
}
grep was born to extract things:
grep -Po 'name="\K[^"]*'
test with your data:
kent$ echo '<parameter name="PortMappingEnabled" access="readWrite" type="xsd:boolean"></parameter>
<parameter name="PortMappingLeaseDuration" access="readWrite" activeNotify="canDeny" type="xsd:unsignedInt"></parameter>
<parameter name="RemoteHost" access="readWrite"></parameter>
<parameter name="ExternalPort" access="readWrite" type="xsd:unsignedInt"></parameter>
<parameter name="ExternalPortEndRange" access="readWrite" type="xsd:unsignedInt"></parameter>
<parameter name="InternalPort" access="readWrite" type="xsd:unsignedInt"></parameter>
<parameter name="PortMappingProtocol" access="readWrite"></parameter>
<parameter name="InternalClient" access="readWrite"></parameter>
<parameter name="PortMappingDescription" access="readWrite"></parameter>
'|grep -Po 'name="\K[^"]*'
PortMappingEnabled
PortMappingLeaseDuration
RemoteHost
ExternalPort
ExternalPortEndRange
InternalPort
PortMappingProtocol
InternalClient
PortMappingDescription
from msvcrt import getch
pos = [0, 0]
def fright():
global pos
pos[0] += 1
def fleft():
global pos
pos[0] -= 1
def fup():
global pos
pos[1] += 1
def fdown():
global pos
pos[1] -= 1
while True:
print'Distance from zero: ', pos
key = ord(getch())
if key == 27: #ESC
break
elif key == 13: #Enter
print('selected')
elif key == 32: #Space
print('jump')
elif key == 224: #Special keys (arrows, f keys, ins, del, etc.)
key = ord(getch())
if key == 80: #Down arrow
print('down')
fdown
elif key == 72: #Up arrow
print('up')
fup()
elif key == 75: #Left arrow
print('left')
fleft()
elif key == 77: #Right arrow
print('right')
fright()
To use multiple files from node_modules in html, the best way I've found is to put them to an array and then loop on them to make them visible for web clients, for example to use filepond modules from node_modules:
const filePondModules = ['filepond-plugin-file-encode', 'filepond-plugin-image-preview', 'filepond-plugin-image-resize', 'filepond']
filePondModules.forEach(currentModule => {
let module_dir = require.resolve(currentModule)
.match(/.*\/node_modules\/[^/]+\//)[0];
app.use('/' + currentModule, express.static(module_dir + 'dist/'));
})
And then in the html (or layout) file, just call them like this :
<link rel="stylesheet" href="/filepond/filepond.css">
<link rel="stylesheet" href="/filepond-plugin-image-preview/filepond-plugin-image-preview.css">
...
<script src="/filepond-plugin-image-preview/filepond-plugin-image-preview.js" ></script>
<script src="/filepond-plugin-file-encode/filepond-plugin-file-encode.js"></script>
<script src="/filepond-plugin-image-resize/filepond-plugin-image-resize.js"></script>
<script src="/filepond/filepond.js"></script>
Actually, that does not delete the variable/property. All it will do is set its value to None
, therefore the variable will still take up space in memory. If you want to completely wipe all existence of the variable from memory, you can just type:
del self.left
Turn on the server log:
log_statement = all
This will log every call to the database server.
I would not use log_statement = all
on a production server. Produces huge log files.
The manual about logging-parameters:
log_statement
(enum
)Controls which SQL statements are logged. Valid values are
none
(off),ddl
,mod
, andall
(all statements). [...]
Resetting the log_statement
parameter requires a server reload (SIGHUP
). A restart is not necessary. Read the manual on how to set parameters.
Don't confuse the server log with pgAdmin's log. Two different things!
You can also look at the server log files in pgAdmin, if you have access to the files (may not be the case with a remote server) and set it up correctly. In pgadmin III, have a look at: Tools -> Server status
. That option was removed in pgadmin4.
I prefer to read the server log files with vim
(or any editor / reader of your choice).
In your webpack.config.js file add below:
var webpack = require("webpack");
plugins: [
new webpack.ProvidePlugin({
$: "jquery",
jQuery: "jquery"
})
],
Install jQuery using npm:
$ npm i jquery --save
In app.js file add below lines:
import $ from 'jquery';
window.jQuery = $;
window.$ = $;
This worked for me. :)
If you are like me just want to print a sequence within a lambda, without get the return value (list of None).
x = range(3)
from __future__ import print_function # if not python 3
pra = lambda seq=x: map(print,seq) and None # pra for 'print all'
pra()
pra('abc')
There's no OrderedSet
in official library.
I make an exhaustive cheatsheet of all the data structure for your reference.
DataStructure = {
'Collections': {
'Map': [
('dict', 'OrderDict', 'defaultdict'),
('chainmap', 'types.MappingProxyType')
],
'Set': [('set', 'frozenset'), {'multiset': 'collection.Counter'}]
},
'Sequence': {
'Basic': ['list', 'tuple', 'iterator']
},
'Algorithm': {
'Priority': ['heapq', 'queue.PriorityQueue'],
'Queue': ['queue.Queue', 'multiprocessing.Queue'],
'Stack': ['collection.deque', 'queue.LifeQueue']
},
'text_sequence': ['str', 'byte', 'bytearray']
}
public class TestingData extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
SQLiteDatabase db;
db = openOrCreateDatabase(
"TestingData.db"
, SQLiteDatabase.CREATE_IF_NECESSARY
, null
);
}
}
then see this link link
This will work (pure JS, appending to a div of id myDiv
):
Demo: http://jsfiddle.net/4pwvg/
var myParent = document.body;_x000D_
_x000D_
//Create array of options to be added_x000D_
var array = ["Volvo","Saab","Mercades","Audi"];_x000D_
_x000D_
//Create and append select list_x000D_
var selectList = document.createElement("select");_x000D_
selectList.id = "mySelect";_x000D_
myParent.appendChild(selectList);_x000D_
_x000D_
//Create and append the options_x000D_
for (var i = 0; i < array.length; i++) {_x000D_
var option = document.createElement("option");_x000D_
option.value = array[i];_x000D_
option.text = array[i];_x000D_
selectList.appendChild(option);_x000D_
}
_x000D_
If you want to set a static row height, you can do something like this:
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 120;
}
How about using a Browser plugin that gives you an overview of ANY html page. I have tried the following:
They both work pretty well for IPython Notebooks. I was reluctant to use the previous solutions as they seem a bit unstable and ended up using these extensions.
Left click on a method and press the F12 key to Go To Definition. Other Actions also available
<div class="container-div">
<div class="center-div">
</div>
</div>
.container-div {position:fixed; left: 0; bottom: 0; width: 100%; margin: 0;}
.center-div {width: 200px; margin: 0 auto;}
This should do the same.
You can use jwt-decode, so then you could write:
import jwt_decode from 'jwt-decode';
var token = 'eyJ0eXAiO.../// jwt token';
var decoded = jwt_decode(token);
console.log(decoded);
/*{exp: 10012016 name: john doe, scope:['admin']}*/
android:background="?android:selectableItemBackground"
android:focusable="true"
android:clickable="true"
For PHP7 on CentOS or EC2 Linux AMI:
sudo yum install php70-gd
You can invoke lambda function directly (at least via Java) by using AWSLambdaClient
as described in the AWS' blog post.
The solution is to NOT use height and width at all! Attach the inner box using top, left, right, bottom and then add margin.
.box {margin:8px; position:absolute; top:0; left:0; right:0; bottom:0}
_x000D_
<div class="box" style="background:black">_x000D_
<div class="box" style="background:green">_x000D_
<div class="box" style="background:lightblue">_x000D_
This will show three nested boxes. Try resizing browser to see they remain nested properly._x000D_
</div>_x000D_
</div>_x000D_
</div>
_x000D_
a vue2 solution ... add simple data property to simply force the update
const app = new Vue({
...
, updated: function() {
this.$nextTick(function() {
var uri = window.location.href
var anchor = ( uri.indexOf('#') === -1 ) ? '' : uri.split('#')[1]
if ( String(anchor).length > 0 && this.updater === 'page_load' ) {
this.updater = "" // only on page-load !
location.href = "#"+String(anchor)
}
})
}
});
app.updater = "page_load"
/* smooth scrolling in css - works in html5 only */
html, body {
scroll-behavior: smooth;
}
The DataGrid has an XAML property IsReadOnly
that you can set to true
:
<my:DataGrid
IsReadOnly="True"
/>
First of all, the naming convention in Kotlin for constants is the same than in java (e.g : MY_CONST_IN_UPPERCASE).
You just have to put your const outside your class declaration.
Two possibilities : Declare your const in your class file (your const have a clear relation with your class)
private const val CONST_USED_BY_MY_CLASS = 1
class MyClass {
// I can use my const in my class body
}
Create a dedicated constants.kt file where to store those global const (Here you want to use your const widely across your project) :
package com.project.constants
const val URL_PATH = "https:/"
Then you just have to import it where you need it :
import com.project.constants
MyClass {
private fun foo() {
val url = URL_PATH
System.out.print(url) // https://
}
}
This is much less cleaner because under the hood, when bytecode is generated, a useless object is created :
MyClass {
companion object {
private const val URL_PATH = "https://"
const val PUBLIC_URL_PATH = "https://public" // Accessible in other project files via MyClass.PUBLIC_URL_PATH
}
}
Even worse if you declare it as a val instead of a const (compiler will generate a useless object + a useless function) :
MyClass {
companion object {
val URL_PATH = "https://"
}
}
In kotlin, const can just hold primitive types. If you want to pass a function to it, you need add the @JvmField annotation. At compile time, it will be transform as a public static final variable. But it's slower than with a primitive type. Try to avoid it.
@JvmField val foo = Foo()