The user "geoand" is right in pointing out the reasons here and giving a solution. But a better approach is to encapsulate your configuration into a separate class, say SystemContiguration java class and then inject this class into what ever services you want to use those fields.
Your current way(@grahamrb) of reading config values directly into services is error prone and would cause refactoring headaches if config setting name is changed.
Please make sure that your file name should not be panda.py
or pd.py
.
Also, make sure that panda is there in your Lib/site-packages
directory, if not that you need to install panda using below command line:
pip install pandas
if you work with proxy then try calling below in command prompt:
python.exe -m pip install pandas --proxy="YOUR_PROXY_IP:PORT"
Inserting data into a pandas dataframe and providing column name.
import pandas as pd
df = pd.DataFrame([['A','C','A','B','C','A','B','B','A','A'], ['ONE','TWO','ONE','ONE','ONE','TWO','ONE','TWO','ONE','THREE']]).T
df.columns = [['Alphabet','Words']]
print(df) #printing dataframe.
This is our printed data:
For making a group of dataframe in pandas and counter,
You need to provide one more column which counts the grouping, let's call that column as, "COUNTER" in dataframe.
Like this:
df['COUNTER'] =1 #initially, set that counter to 1.
group_data = df.groupby(['Alphabet','Words'])['COUNTER'].sum() #sum function
print(group_data)
OUTPUT:
System.Diagnostics.Process process = new System.Diagnostics.Process();
System.Diagnostics.ProcessStartInfo startInfo = new System.Diagnostics.ProcessStartInfo();
startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Normal;
startInfo.FileName = "cmd.exe";
startInfo.Arguments = @"/c -sk server -sky exchange -pe -n CN=localhost -ir LocalMachine -is Root -ic MyCA.cer -sr LocalMachine -ss My MyAdHocTestCert.cer"
use /c as a cmd argument to close cmd.exe once its finish processing your commands
Try this using regular expression:
import re
data['result'] = data['result'].map(lambda x: re.sub('[-+A-Za-z]',x)
public class StringTest{
public static void main(String[] args){
String s ="aaabbbbccccccdd";
String result="";
StringBuilder sb = new StringBuilder(s);
while(sb.length() != 0){
int count = 0;
char test = sb.charAt(0);
while(sb.indexOf(test+"") != -1){
sb.deleteCharAt(sb.indexOf(test+""));
count++;
}
//System.out.println(test+" is repeated "+count+" number of times");
result=result+test+count;
}
System.out.println(result);
}
}
Sometimes you want to change the capitalization of a lot of file names on a case insensitive filesystem (e.g. on OS X or Windows). Doing git mv
commands will tire quickly. To make things a bit easier this is what I do:
git add . -A
to remove all files.git add .
. Git should see that the files are renamed.Now you can make a commit saying you have changed the file name capitalization.
the root parent have to be in pixels if you want to work freely with percents,
<body style="margin: 0px; width: 1886px; height: 939px;">
<div id="containerA" class="containerA" style="height:65%;width:100%;">
<div id="containerAinnerDiv" style="position: relative; background-color: aqua;width:70%;height: 80%;left:15%;top:10%;">
<div style="height: 100%;width: 50%;float: left;"></div>
<div style="height: 100%;width: 28%;float:left">
<img src="img/justimage.png" style="max-width:100%;max-height:100%;">
</div>
<div style="height: 100%;width: 22%;float: left;"></div>
</div>
</div>
</body>
Like this:
>>>mystr = "abcdefghijkl"
>>>mystr[-4:]
'ijkl'
This slices the string's last 4 characters. The -4 starts the range from the string's end. A modified expression with [:-4]
removes the same 4 characters from the end of the string:
>>>mystr[:-4]
'abcdefgh'
For more information on slicing see this Stack Overflow answer.
public class StringTest {
public static String dupRemove(String str) {
Set<Character> s1 = new HashSet<Character>();
StringBuffer sb = new StringBuffer();
for (int i = 0; i < str.length(); i++) {
Character c = str.charAt(i);
if (!s1.contains(c)) {
s1.add(c);
sb.append(c);
}
}
System.out.println(sb.toString());
return sb.toString();
}
public static void main(String[] args) {
dupRemove("AAAAAAAAAAAAAAAAA BBBBBBBB");
}
}
I'm not entirely surprised that your example exhibits no strange behaviour. Try copying str1
to str1+2
instead and see what happens then. (May not actually make a difference, depends on compiler/libraries.)
In general, memcpy is implemented in a simple (but fast) manner. Simplistically, it just loops over the data (in order), copying from one location to the other. This can result in the source being overwritten while it's being read.
Memmove does more work to ensure it handles the overlap correctly.
EDIT:
(Unfortunately, I can't find decent examples, but these will do). Contrast the memcpy and memmove implementations shown here. memcpy just loops, while memmove performs a test to determine which direction to loop in to avoid corrupting the data. These implementations are rather simple. Most high-performance implementations are more complicated (involving copying word-size blocks at a time rather than bytes).
use this function it works for me
public byte[] toByteArray(int value) {
return new byte[] {
(byte)(value >> 24),
(byte)(value >> 16),
(byte)(value >> 8),
(byte)value};
}
it translates the int into a byte value
I like Lucas answer, but I would like to elaborate it a bit. There is a built-in function in termios.h
named cfmakeraw()
which man describes as:
cfmakeraw() sets the terminal to something like the "raw" mode of the
old Version 7 terminal driver: input is available character by
character, echoing is disabled, and all special processing of
terminal input and output characters is disabled. [...]
This basically does the same as what Lucas suggested and more, you can see the exact flags it sets in the man pages: termios(3).
int c = 0;
static struct termios oldTermios, newTermios;
tcgetattr(STDIN_FILENO, &oldTermios);
newTermios = oldTermios;
cfmakeraw(&newTermios);
tcsetattr(STDIN_FILENO, TCSANOW, &newTermios);
c = getchar();
tcsetattr(STDIN_FILENO, TCSANOW, &oldTermios);
switch (c) {
case 113: // q
printf("\n\n");
exit(0);
break;
case 105: // i
printf("insert\n");
break;
default:
break;
It would make for a handy function. Also, note I'm using STUFF instead of SUBSTRING.
create function str2uniq(@s varchar(50)) returns uniqueidentifier as begin
-- just in case it came in with 0x prefix or dashes...
set @s = replace(replace(@s,'0x',''),'-','')
-- inject dashes in the right places
set @s = stuff(stuff(stuff(stuff(@s,21,0,'-'),17,0,'-'),13,0,'-'),9,0,'-')
return cast(@s as uniqueidentifier)
end
String[] result = input.split("(?!^)");
What this does is split the input String on all empty Strings that are not preceded by the beginning of the String.
All you need is a reluctant quantifier:
regex: /aa.*?aa/
aabbabcaabda => aabbabcaa
aaaaaabda => aaaa
aabbabcaabda => aabbabcaa
aababaaaabdaa => aababaa, aabdaa
You could use negative lookahead, too, but in this case it's just a more verbose way accomplish the same thing. Also, it's a little trickier than gpojd made it out to be. The lookahead has to be applied at each position before the dot is allowed to consume the next character.
/aa(?:(?!aa).)*aa/
As for the approach suggested by Claudiu and finnw, it'll work okay when the sentinel string is only two characters long, but (as Claudiu acknowledged) it's too unwieldy for longer strings.
The documentation says:
class (Optional) String
One or more CSS classes to remove from the elements, these are separated by spaces.
Example:
Remove the class 'blue' and 'under' from the matched elements.
$("p:odd").removeClass("blue under");
Collections.synchronizedMap()
guarantees that each atomic operation you want to run on the map will be synchronized.
Running two (or more) operations on the map however, must be synchronized in a block. So yes - you are synchronizing correctly.
You can achive this with creating new array:
<?php
$array = array(1 => "Toyota", 2 => "Nissan", 3 => "BMW");
if (isset ($_POST['search'])) {
$maker = mysql_real_escape_string($_POST['Make']);
echo $array[$maker];
}
?>
In the Params I have added model.Email and model.Password, work for me well. Thanks for the question. I tried the same thing in headers did not work. But it worked on Body with form-data and x-www-form-urlencoded.
Postman version 6.4.4
you can do it like this:
cell[B1]: 0:04:58.727
cell[B2]: =FIND(".";B1)
cell[B3]: =LEFT(B1;B2-7)
cell[B4]: =MID(B1;11-8;2)
cell[B5]: =RIGHT(B1;6)
cell[B6]: =B3*3600000+B4*60000+B5
maybe you have to multiply B5 also with 1000.
=FIND(".";B1) is only necessary because you might have inputs like '0:04:58.727' or '10:04:58.727' with different length.
Remove the "height" property.
<img src="big_image.jpg" width="900" alt=""/>
By specifying both you are changing the aspect ratio of the image. Just setting one will resize but preserve the aspect ratio.
Optionally, to restrict oversizings:
<img src="big_image.jpg" width="900" alt="" style="max-width:500px; height:auto; max-height:600px;"/>
<form>
cannot go inside <p>
, no. The browser is going to abruptly close your <p>
element when it hits the opening <form>
tag as it tries to handle what it thinks is an unclosed paragraph element:
<p>Read this sentence
</p><form style='display:inline;'>
If an Object variable is null, one cannot call an equals() method upon it, thus an object reference check of null is proper.
It has nothing to do with a space embedded in the folder structure.
I had the same problem. But when I created an environmental variable (defined both at the system- and user-level) called TNS_HOME and made it to point to the folder where TNSNAMES.ORA existed, the problem was resolved. Voila!
venki
select * from dba_tables
gives all the tables of all the users only if the user with which you logged in is having the sysdba
privileges.
<span id="span">HOI</span>
<script>
var span = document.getElementById("span");
console.log(span);
span.style.fontSize = "25px";
span.innerHTML = "String";
</script>
You have two errors in your code:
document.getElementById
-
This retrieves the element with an Id that is "span", you did not specify an id on the span-element.
Capitals in Javascript - Also you forgot the capital of Size.
Have you seen this question and its answer?
You can set a globally valid value for you app like this:
app.value('key', 'value');
and then use it in your services. You could move this code to a config.js file and execute it on page load or another convenient moment.
Maybe these could be helpful?
What is the equivalent of memset in C#?
http://techmikael.blogspot.com/2009/12/filling-array-with-default-value.html
Here is how I do it:
var hashTagActive = "";
$(".scroll").on("click touchstart" , function (event) {
if(hashTagActive != this.hash) { //this will prevent if the user click several times the same link to freeze the scroll.
event.preventDefault();
//calculate destination place
var dest = 0;
if ($(this.hash).offset().top > $(document).height() - $(window).height()) {
dest = $(document).height() - $(window).height();
} else {
dest = $(this.hash).offset().top;
}
//go to destination
$('html,body').animate({
scrollTop: dest
}, 2000, 'swing');
hashTagActive = this.hash;
}
});
Then you just need to create your anchor like this:
<a class="scroll" href="#destination1">Destination 1</a>
You can see it on my website.
A demo is also available here: http://jsfiddle.net/YtJcL/
Simplification of @Daira Hopwood method good for picking one single commit. Need no temporary branches.
In the case of the author:
then do:
git checkout Z # move HEAD to wanted commit
git reset Y # have Z as changes in working tree
git stash # save Z in stash
git checkout X # return to working branch
git stash pop # apply Z to current branch
git commit -a # do commit
This is the same answer as the doctors but it shows how to eliminate the problem with mutable arrays. If you use this kind of approach because of branch prediction first if will have very little to zero effect and whole code only calls mutable array values() function only once. As both variables are static they will not consume n * memory for every usage of this enumeration too.
private static boolean arrayCreated = false;
private static RFMsgType[] ArrayOfValues;
public static RFMsgType GetMsgTypeFromValue(int MessageID) {
if (arrayCreated == false) {
ArrayOfValues = RFMsgType.values();
}
for (int i = 0; i < ArrayOfValues.length; i++) {
if (ArrayOfValues[i].MessageIDValue == MessageID) {
return ArrayOfValues[i];
}
}
return RFMsgType.UNKNOWN;
}
If you're using a UINavigationController
, you can use an extension like this:
extension UINavigationController {
private struct AssociatedKeys {
static var navigationBarBackgroundViewName = "NavigationBarBackground"
}
var navigationBarBackgroundView: UIView? {
get {
return objc_getAssociatedObject(self,
&AssociatedKeys.navigationBarBackgroundViewName) as? UIView
}
set(newValue) {
objc_setAssociatedObject(self,
&AssociatedKeys.navigationBarBackgroundViewName,
newValue,
.OBJC_ASSOCIATION_RETAIN)
}
}
func setNavigationBar(hidden isHidden: Bool, animated: Bool = false) {
if animated {
UIView.animate(withDuration: 0.3) {
self.navigationBarBackgroundView?.isHidden = isHidden
}
} else {
navigationBarBackgroundView?.isHidden = isHidden
}
}
func setNavigationBarBackground(color: UIColor, includingStatusBar: Bool = true, animated: Bool = false) {
navigationBarBackgroundView?.backgroundColor = UIColor.clear
navigationBar.backgroundColor = UIColor.clear
navigationBar.barTintColor = UIColor.clear
let setupOperation = {
if includingStatusBar {
self.navigationBarBackgroundView?.isHidden = false
if self.navigationBarBackgroundView == nil {
self.setupBackgroundView()
}
self.navigationBarBackgroundView?.backgroundColor = color
} else {
self.navigationBarBackgroundView?.isHidden = true
self.navigationBar.backgroundColor = color
}
}
if animated {
UIView.animate(withDuration: 0.3) {
setupOperation()
}
} else {
setupOperation()
}
}
private func setupBackgroundView() {
var frame = navigationBar.frame
frame.origin.y = 0
frame.size.height = 64
navigationBarBackgroundView = UIView(frame: frame)
navigationBarBackgroundView?.translatesAutoresizingMaskIntoConstraints = true
navigationBarBackgroundView?.autoresizingMask = [.flexibleWidth, .flexibleBottomMargin]
navigationBarBackgroundView?.isUserInteractionEnabled = false
view.insertSubview(navigationBarBackgroundView!, aboveSubview: navigationBar)
}
}
It basically makes the navigation bar background transparent and uses another UIView as the background. You can call the setNavigationBarBackground
method of your navigation controller to set the navigation bar background color together with the status bar.
Keep in mind that you have to then use the setNavigationBar(hidden: Bool, animated: Bool)
method in the extension when you want to hide the navigation bar otherwise the view that was used as the background will still be visible.
This might be a faster way:
DECLARE @action char(1)
IF COLUMNS_UPDATED() > 0 -- insert or update
BEGIN
IF EXISTS (SELECT * FROM DELETED) -- update
SET @action = 'U'
ELSE
SET @action = 'I'
END
ELSE -- delete
SET @action = 'D'
SELECT SUM(Output.count),Output.attr
FROM
(
SELECT COUNT(column1 ) AS count,column1 AS attr FROM tab1 GROUP BY column1
UNION ALL
SELECT COUNT(column2) AS count,column2 AS attr FROM tab1 GROUP BY column2
UNION ALL
SELECT COUNT(column3) AS count,column3 AS attr FROM tab1 GROUP BY column3) AS Output
GROUP BY attr
Excellent question. I've tackled this problem as well, and while I agree that "factories" (class-method constructors) are a good method, I would like to suggest another, which I've also found very useful:
Here's a sample (this is a read
method and not a constructor, but the idea is the same):
def read(self, str=None, filename=None, addr=0):
""" Read binary data and return a store object. The data
store is also saved in the interal 'data' attribute.
The data can either be taken from a string (str
argument) or a file (provide a filename, which will
be read in binary mode). If both are provided, the str
will be used. If neither is provided, an ArgumentError
is raised.
"""
if str is None:
if filename is None:
raise ArgumentError('Please supply a string or a filename')
file = open(filename, 'rb')
str = file.read()
file.close()
...
... # rest of code
The key idea is here is using Python's excellent support for named arguments to implement this. Now, if I want to read the data from a file, I say:
obj.read(filename="blob.txt")
And to read it from a string, I say:
obj.read(str="\x34\x55")
This way the user has just a single method to call. Handling it inside, as you saw, is not overly complex
I could not use localStorage
directly in the Firefox (v27) console. I got the error:
[Exception... "Component is not available" nsresult: "0x80040111 (NS_ERROR_NOT_AVAILABLE)" location: "JS frame :: debugger eval code :: :: line 1" data: no]
What worked was:
window.content.localStorage
I tried with this way and its working fine :
UPDATE
Emp
SET
ID = 123,
Name = 'Peter'
FROM
Table_Name
if you have
<span class="label label-default">New</span>
just add the style="font-size:XXpx;", ej.
<span class="label label-default" style="font-size:15px;">New</span>
you can use json_decode
function
foreach (json_decode($response) as $area)
{
print_r($area); // this is your area from json response
}
See this fiddle
Answers above don't distinguish between simple chinese and traditinal chinese.
Locale.getDefault().toString()
works which returns "zh_CN", "zh_TW", "en_US" and etc.
References to : https://developer.android.com/reference/java/util/Locale.html, ISO 639-1 is OLD.
Just for others (like me) who might have faced the above error. The solution in simple terms.
You might have missed to register your Interface and class (which implements that inteface) registration in your code.
e.g if the error is
"The current type, xyznamespace. Imyinterfacename, is an interface and cannot be constructed. Are you missing a type mapping?"
Then you must register the class which implements the Imyinterfacename in the UnityConfig class in the Register method. using code like below
container.RegisterType<Imyinterfacename, myinterfaceimplclassname>();
The standard states that prompting can be controlled by canceling the beforeunload event or setting the return value to a non-null value. It also states that authors should use Event.preventDefault() instead of returnValue, and the message shown to the user is not customizable.
As of 69.0.3497.92, Chrome has not met the standard. However, there is a bug report filed, and a review is in progress. Chrome requires returnValue to be set by reference to the event object, not the value returned by the handler.
It is the author's responsibility to track whether changes have been made; it can be done with a variable or by ensuring the event is only handled when necessary.
window.addEventListener('beforeunload', function (e) {_x000D_
// Cancel the event as stated by the standard._x000D_
e.preventDefault();_x000D_
// Chrome requires returnValue to be set._x000D_
e.returnValue = '';_x000D_
});_x000D_
_x000D_
window.location = 'about:blank';
_x000D_
Personally I did as "Cheok Yan Cheng" said, but I used a "List" to have a "Backstack" of all my activities.
If you want to check Which is the Current Activity you just need to get the last activity class in the list.
Create an application which extends "Application" and do this:
public class MyApplication extends Application implements Application.ActivityLifecycleCallbacks,
EndSyncReceiver.IEndSyncCallback {
private List<Class> mActivitiesBackStack;
private EndSyncReceiver mReceiver;
private Merlin mMerlin;
private boolean isMerlinBound;
private boolean isReceiverRegistered;
@Override
public void onCreate() {
super.onCreate();
[....]
RealmHelper.initInstance();
initMyMerlin();
bindMerlin();
initEndSyncReceiver();
mActivitiesBackStack = new ArrayList<>();
}
/* START Override ActivityLifecycleCallbacks Methods */
@Override
public void onActivityCreated(Activity activity, Bundle bundle) {
mActivitiesBackStack.add(activity.getClass());
}
@Override
public void onActivityStarted(Activity activity) {
if(!isMerlinBound){
bindMerlin();
}
if(!isReceiverRegistered){
registerEndSyncReceiver();
}
}
@Override
public void onActivityResumed(Activity activity) {
}
@Override
public void onActivityPaused(Activity activity) {
}
@Override
public void onActivityStopped(Activity activity) {
if(!AppUtils.isAppOnForeground(this)){
if(isMerlinBound) {
unbindMerlin();
}
if(isReceiverRegistered){
unregisterReceiver(mReceiver);
}
if(RealmHelper.getInstance() != null){
RealmHelper.getInstance().close();
RealmHelper.getInstance().logRealmInstanceCount("AppInBackground");
RealmHelper.setMyInstance(null);
}
}
}
@Override
public void onActivitySaveInstanceState(Activity activity, Bundle bundle) {
}
@Override
public void onActivityDestroyed(Activity activity) {
if(mActivitiesBackStack.contains(activity.getClass())){
mActivitiesBackStack.remove(activity.getClass());
}
}
/* END Override ActivityLifecycleCallbacks Methods */
/* START Override IEndSyncCallback Methods */
@Override
public void onEndSync(Intent intent) {
Constants.SyncType syncType = null;
if(intent.hasExtra(Constants.INTENT_DATA_SYNC_TYPE)){
syncType = (Constants.SyncType) intent.getSerializableExtra(Constants.INTENT_DATA_SYNC_TYPE);
}
if(syncType != null){
checkSyncType(syncType);
}
}
/* END IEndSyncCallback Methods */
private void checkSyncType(Constants.SyncType){
[...]
if( mActivitiesBackStack.contains(ActivityClass.class) ){
doOperation() }
}
}
In my case I used "Application.ActivityLifecycleCallbacks" to:
Bind/Unbind Merlin Instance (used to get event when the app lose or get connection, for example when you close mobile data or when you open it). It is useful after the "OnConnectivityChanged" intent action was disabled. For more info about MERLIN see: MERLIN INFO LINK
Close my last Realm Instance when the application is closed; I will init it inside a BaseActivity wich is extended from all others activities and which has a private RealmHelper Instance. For more info about REALM see: REALM INFO LINK For instance I have a static "RealmHelper" instance inside my "RealmHelper" class which is instantiated inside my application "onCreate". I have a synchronization service in which I create I new "RealmHelper" because Realm is "Thread-Linked" and a Realm Instance can't work inside a different Thread. So in order to follow Realm Documentation "You Need To Close All Opened Realm Instances to avoid System Resources Leaks", to accomplish this thing I used the "Application.ActivityLifecycleCallbacks" as you can see up.
Finally I have a receiver wich is triggered when I finish to synchronize my application, then when the sync end it will call the "IEndSyncCallback" "onEndSync" method in which I look if I have a specific Activity Class inside my ActivitiesBackStack List because I need to update the data on the view if the sync updated them and I could need to do others operations after the app sync.
That's all, hope this is helpful. See u :)
You are missing setting what field is the Text and Value in the SelectList itself. That is why it does a .ToString()
on each object in the list. You could think that given it is a list of SelectListItem
it should be smart enough to detect this... but it is not.
u.UserTypeOptions = new SelectList(
new List<SelectListItem>
{
new SelectListItem { Selected = true, Text = string.Empty, Value = "-1"},
new SelectListItem { Selected = false, Text = "Homeowner", Value = ((int)UserType.Homeowner).ToString()},
new SelectListItem { Selected = false, Text = "Contractor", Value = ((int)UserType.Contractor).ToString()},
}, "Value" , "Text", 1);
BTW, you can use a list of array of any type... and then just set the name of the properties that will act as Text and Value.
I think it is better to do it like this:
u.UserTypeOptions = new SelectList(
new List<SelectListItem>
{
new SelectListItem { Text = "Homeowner", Value = ((int)UserType.Homeowner).ToString()},
new SelectListItem { Text = "Contractor", Value = ((int)UserType.Contractor).ToString()},
}, "Value" , "Text");
I removed the -1 item, and the setting of each items selected true/false.
Then, in your view:
@Html.DropDownListFor(m => m.UserType, Model.UserTypeOptions, "Select one")
This way, if you set the "Select one" item, and you don't set one item as selected in the SelectList, the UserType
will be null (the UserType
need to be int?
).
If you need to set one of the SelectList items as selected, you can use:
u.UserTypeOptions = new SelectList(options, "Value" , "Text", userIdToBeSelected);
If you want to use pure JavaScript then try this:
var arr=["apple","ball","cat","dog"];
var narr=[];
for(var i=0;i<arr.length;i++){
narr.push(arr[i]);
}
alert(narr); //output: apple,ball,vat,dog
narr.push("elephant");
alert(arr); // output: apple,ball,vat,dog
alert(narr); // apple,ball,vat,dog,elephant
CREATE TABLE `voting` (
`QuestionID` int(10) unsigned NOT NULL,
`MemberId` int(10) unsigned NOT NULL,
`vote` int(10) unsigned NOT NULL,
PRIMARY KEY (`QuestionID`,`MemberId`)
);
The following will result in a comma separated list. Be sure to include a using statement for System.Linq
List<string> ls = new List<string>();
ls.Add("one");
ls.Add("two");
string type = ls.Aggregate((x,y) => x + "," + y);
will yield one,two
if you need a space after the comma, simply change the last line to string type = ls.Aggregate((x,y) => x + ", " + y);
I know this is an old question but I did try all the above answers but didnt work in my case. What ultimately helped me out is
SHOW PARAMETER instance_name
I think the option controlling the folders from which autoloading stuff gets done has been sufficiently covered in other answers. However, in case someone else is having trouble stuff loaded though they've had their autoload paths modified as required, then this answer tries to explain what is the magic behind this autoload thing.
So when it comes to loading stuff from subdirectories there's a gotcha or a convention you should be aware. Sometimes the Ruby/Rails magic (this time mostly Rails) can make it difficult to understand why something is happening. Any module declared in the autoload paths will only be loaded if the module name corresponds to the parent directory name. So in case you try to put into lib/my_stuff/bar.rb
something like:
module Foo
class Bar
end
end
It will not be loaded automagically. Then again if you rename the parent dir to foo
thus hosting your module at path: lib/foo/bar.rb
. It will be there for you. Another option is to name the file you want autoloaded by the module name. Obviously there can only be one file by that name then. In case you need to split your stuff into many files you could of course use that one file to require other files, but I don't recommend that, because then when on development mode and you modify those other files then Rails is unable to automagically reload them for you. But if you really want you could have one file by the module name that then specifies the actual files required to use the module. So you could have two files: lib/my_stuff/bar.rb
and lib/my_stuff/foo.rb
and the former being the same as above and the latter containing a single line: require "bar"
and that would work just the same.
P.S. I feel compelled to add one more important thing. As of lately, whenever I want to have something in the lib directory that needs to get autoloaded, I tend to start thinking that if this is something that I'm actually developing specifically for this project (which it usually is, it might some day turn into a "static" snippet of code used in many projects or a git submodule, etc.. in which case it definitely should be in the lib folder) then perhaps its place is not in the lib folder at all. Perhaps it should be in a subfolder under the app folder· I have a feeling that this is the new rails way of doing things. Obviously, the same magic is in work wherever in you autoload paths you put your stuff in so it's good to these things. Anyway, this is just my thoughts on the subject. You are free to disagree. :)
UPDATE: About the type of magic..
As severin pointed out in his comment, the core "autoload a module mechanism" sure is part of Ruby, but the autoload paths stuff isn't. You don't need Rails to do autoload :Foo, File.join(Rails.root, "lib", "my_stuff", "bar")
. And when you would try to reference the module Foo for the first time then it would be loaded for you. However what Rails does is it gives us a way to try and load stuff automagically from registered folders and this has been implemented in such a way that it needs to assume something about the naming conventions. If it had not been implemented like that, then every time you reference something that's not currently loaded it would have to go through all of the files in all of the autoload folders and check if any of them contains what you were trying to reference. This in turn would defeat the idea of autoloading and autoreloading. However, with these conventions in place it can deduct from the module/class your trying to load where that might be defined and just load that.
Before take the width make the parent display show ,then take the width and finally make the parent display hide. Just like following
$('#parent').show();
var tableWidth = $('#parent').children('table').outerWidth();
$('#parent').hide();
if (tableWidth > $('#parent').width())
{
$('#parent').width() = tableWidth;
}
The Classloader API doesn't have an "enumerate" method, because class loading is an "on-demand" activity -- you usually have thousands of classes in your classpath, only a fraction of which will ever be needed (the rt.jar alone is 48MB nowadays!).
So, even if you could enumerate all classes, this would be very time- and memory-consuming.
The simple approach is to list the concerned classes in a setup file (xml or whatever suits your fancy); if you want to do this automatically, restrict yourself to one JAR or one class directory.
Try this query -
SELECT
t2.company_name,
t2.expose_new,
t2.expose_used,
t1.title,
t1.seller,
t1.status,
CASE status
WHEN 'New' THEN t2.expose_new
WHEN 'Used' THEN t2.expose_used
ELSE NULL
END as 'expose'
FROM
`products` t1
JOIN manufacturers t2
ON
t2.id = t1.seller
WHERE
t1.seller = 4238
If you are running behind the any firewall(if firewall blocking gem installation). just try following command it works.
gem install --http-proxy http://username:pwd@server:port gem
you can use .is()
:
$( "ul" ).click(function( event ) {
var target = $( event.target );
if ( target.is( "li" ) ) {
target.css( "background-color", "red" );
}
});
see source
You are binding properties to nothing. :required
in
<select class="form-control" v-model="selected" :required @change="changeLocation">
and :selected
in
<option :selected>Choose Province</option>
If you set the code like so, your errors should be gone:
<template>
<select class="form-control" v-model="selected" :required @change="changeLocation">
<option>Choose Province</option>
<option v-for="option in options" v-bind:value="option.id" >{{ option.name }}</option>
</select>
</template>
you would now need to have a data
property called selected
so that v-model works. So,
{
data () {
return {
selected: "Choose Province"
}
}
}
If that seems like too much work, you can also do it like:
<template>
<select class="form-control" :required="true" @change="changeLocation">
<option :selected="true">Choose Province</option>
<option v-for="option in options" v-bind:value="option.id" >{{ option.name }}</option>
</select>
</template>
You can use the v-model
approach if your default value depends on some data property.
You can go for the second method if your default selected value happens to be the first option
.
You can also handle it programmatically by doing so:
<select class="form-control" :required="true">
<option
v-for="option in options"
v-bind:value="option.id"
:selected="option == '<the default value you want>'"
>{{ option }}</option>
</select>
Although this question has an accepted answer but I think this is a much cleaner way to achieve the desired output
<select required>
<option value="">Select</option>
<option>English</option>
<option>Spanish</option>
</select>
The required attribute in makes it mandatory to select an option from the list.
value="" inside the option tag combined with the required attribute in select tag makes selection of 'Select' option not permissible, thus achieving the required output
From C# 6 onwards, you can just use:
MyEvent?.Invoke();
or:
obj?.SomeMethod();
The ?.
is the null-propagating operator, and will cause the .Invoke()
to be short-circuited when the operand is null
. The operand is only accessed once, so there is no risk of the "value changes between check and invoke" problem.
===
Prior to C# 6, no: there is no null-safe magic, with one exception; extension methods - for example:
public static void SafeInvoke(this Action action) {
if(action != null) action();
}
now this is valid:
Action act = null;
act.SafeInvoke(); // does nothing
act = delegate {Console.WriteLine("hi");}
act.SafeInvoke(); // writes "hi"
In the case of events, this has the advantage of also removing the race-condition, i.e. you don't need a temporary variable. So normally you'd need:
var handler = SomeEvent;
if(handler != null) handler(this, EventArgs.Empty);
but with:
public static void SafeInvoke(this EventHandler handler, object sender) {
if(handler != null) handler(sender, EventArgs.Empty);
}
we can use simply:
SomeEvent.SafeInvoke(this); // no race condition, no null risk
Just a demo for the question.
class MyClass:
def __init__(self):
print('__init__ is the constructor for a class')
def __del__(self):
print('__del__ is the destructor for a class')
def __enter__(self):
print('__enter__ is for context manager')
return self
def __exit__(self, exc_type, exc_value, traceback):
print('__exit__ is for context manager')
def greeting(self):
print('hello python')
if __name__ == '__main__':
with MyClass() as mycls:
mycls.greeting()
$ python3 class.objects_instantiation.py
__init__ is the constructor for a class
__enter__ is for context manager
hello python
__exit__ is for context manager
__del__ is the destructor for a class
Change your second table code like below.
<table style="border: 1px solid red;width:300px;display:block;">
<thead>
<tr>
<td width=150>Name</td>
<td width=150>phone</td>
</tr>
</thead>
<tbody style='height:50px;overflow:auto;display:block;width:317px;'>
<tr>
<td width=150>AAAA</td>
<td width=150>323232</td>
</tr>
<tr>
<td>BBBBB</td>
<td>323232</td>
</tr>
<tr>
<td>CCCCC</td>
<td>3435656</td>
</tr>
</tbody>
</table>
While you can do OO in C (e.g. by adding a theType *this
first parameter to methods, and manually handling something like vtables for polymorphism) this is never particularly satisfactory as a design, and will look ugly (even with some pre-processor hacks).
I would suggest at least looking at a re-design to compare how this would work out.
Overall a lot depends on the answer to the key question: if you have working C++ code, why do you want C instead?
It should work, however http://nginx.org/en/docs/http/ngx_http_core_module.html#alias says:
When location matches the last part of the directive’s value: it is better to use the root directive instead:
which would yield:
server {
listen 8080;
server_name www.mysite.com mysite.com;
error_log /home/www-data/logs/nginx_www.error.log;
error_page 404 /404.html;
location /public/doc/ {
autoindex on;
root /home/www-data/mysite;
}
location = /404.html {
root /home/www-data/mysite/static/html;
}
}
I would not say it is a standard way to swap because it will cause some unexpected errors.
nums[i], nums[nums[i] - 1] = nums[nums[i] - 1], nums[i]
nums[i]
will be modified first and then affect the second variable nums[nums[i] - 1]
.
The following code creates an anonymous struct with the alias myStruct
:
typedef struct{
int one;
int two;
} myStruct;
You can't refer it without the alias because you don't specify an identifier for the structure.
3 Simple Steps
For what it's worth, some heavy used production code I have written is based on this assumption and I never had a problem with it. I know that doesn't make it true though :-)
If you don't want to take the risk I would use iteritems() if you can.
for key, value in myDictionary.iteritems():
print key, value
I would point a beginner to the Wiki article on the Main function, then supplement it with this.
Java only starts running a program with the specific public static void main(String[] args)
signature, and one can think of a signature like their own name - it's how Java can tell the difference between someone else's main()
and the one true main()
.
String[] args
is a collection of String
s, separated by a space, which can be typed into the program on the terminal. More times than not, the beginner isn't going to use this variable, but it's always there just in case.
Don't send the form on keypress "Enter":
<form id="form_cdb" onsubmit="return false">
Execute the function on keypress "Enter":
<input type="text" autocomplete="off" onkeypress="if(event.key === 'Enter') my_event()">
For me, it was the missing 'web.config' file. After adding it to the deployed project directory in asp net core 3.1 app, the problem was solved.
or even more simple
Sub clearDebugConsole()
For i = 0 To 100
Debug.Print ""
Next i
End Sub
Callbacks are most easily described in terms of the telephone system. A function call is analogous to calling someone on a telephone, asking her a question, getting an answer, and hanging up; adding a callback changes the analogy so that after asking her a question, you also give her your name and number so she can call you back with the answer.
Paul Jakubik, Callback Implementations in C++.
The HTML5 spec does allow accessing the webcamera, but last I checked, it is far from finalized, and has very, very little browser support.
This is a link to get you started: http://www.html5rocks.com/en/tutorials/getusermedia/intro/
You'll probably have to use flash if you want it to work cross-browser.
a piece of code who work with python to read rs232 just in case somedoby else need it
ser = serial.Serial('/dev/tty.usbserial', 9600, timeout=0.5)
ser.write('*99C\r\n')
time.sleep(0.1)
ser.close()
A bit late to the party, but nevertheless...
I've been using JarBrowser to find in which jar a particular class is present. It's got an easy to use GUI which allows you to browse through the contents of all the jars in the selected path.
Here's my version after reading the documentation provided by Apple and the previous posts. One thing I noticed is that the textView was not handled when covered by the keyboard. Unfortunately, Apple's documentation won't work because, for whatever reason, the keyboard is called AFTER the textViewDidBeginEditing is called. I handled this by calling a central method that checks if the keyboard is displayed AND if a textView or textField is being edited. This way, the process is only fired when BOTH conditions exists.
Another point with textViews is that their height may be such that the keyboard clips the bottom of the textView and would not adjust if the Top-Left point of the was in view. So, the code I wrote actually takes the screen-referenced Bottom-Left point of any textView or textField and sees if it falls in the screen-referenced coordinates of the presented keyboard implying that the keyboard covers some portion of it.
let aRect : CGRect = scrollView.convertRect(activeFieldRect!, toView: nil)
if (CGRectContainsPoint(keyboardRect!, CGPointMake(aRect.origin.x, aRect.maxY))) {
// scroll textView/textField into view
}
If you're using a navigation controller, the subclass also sets the scroll view automatic adjustment for insets to false.
self.automaticallyAdjustsScrollViewInsets = false
It walks through each textView and textField to set delegates for handling
for view in self.view.subviews {
if view is UITextView {
let tv = view as! UITextView
tv.delegate = self
} else if view is UITextField {
let tf = view as! UITextField
tf.delegate = self
}
}
Simply set your base class to the subclass created here for results.
import UIKit
class ScrollingFormViewController: UIViewController, UITextViewDelegate, UITextFieldDelegate {
var activeFieldRect: CGRect?
var keyboardRect: CGRect?
var scrollView: UIScrollView!
override func viewDidLoad() {
self.automaticallyAdjustsScrollViewInsets = false
super.viewDidLoad()
// Do any additional setup after loading the view.
self.registerForKeyboardNotifications()
for view in self.view.subviews {
if view is UITextView {
let tv = view as! UITextView
tv.delegate = self
} else if view is UITextField {
let tf = view as! UITextField
tf.delegate = self
}
}
scrollView = UIScrollView(frame: self.view.frame)
scrollView.scrollEnabled = false
scrollView.showsVerticalScrollIndicator = false
scrollView.showsHorizontalScrollIndicator = false
scrollView.addSubview(self.view)
self.view = scrollView
}
override func viewDidLayoutSubviews() {
scrollView.sizeToFit()
scrollView.contentSize = scrollView.frame.size
super.viewDidLayoutSubviews()
}
deinit {
self.deregisterFromKeyboardNotifications()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func registerForKeyboardNotifications()
{
//Adding notifies on keyboard appearing
NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(ScrollingFormViewController.keyboardWasShown), name: UIKeyboardWillShowNotification, object: nil)
NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(ScrollingFormViewController.keyboardWillBeHidden), name: UIKeyboardWillHideNotification, object: nil)
}
func deregisterFromKeyboardNotifications()
{
//Removing notifies on keyboard appearing
NSNotificationCenter.defaultCenter().removeObserver(self, name: UIKeyboardWillShowNotification, object: nil)
NSNotificationCenter.defaultCenter().removeObserver(self, name: UIKeyboardWillHideNotification, object: nil)
}
func keyboardWasShown(notification: NSNotification)
{
let info : NSDictionary = notification.userInfo!
keyboardRect = (info[UIKeyboardFrameEndUserInfoKey] as? NSValue)?.CGRectValue()
adjustForKeyboard()
}
func keyboardWillBeHidden(notification: NSNotification)
{
keyboardRect = nil
adjustForKeyboard()
}
func adjustForKeyboard() {
if keyboardRect != nil && activeFieldRect != nil {
let aRect : CGRect = scrollView.convertRect(activeFieldRect!, toView: nil)
if (CGRectContainsPoint(keyboardRect!, CGPointMake(aRect.origin.x, aRect.maxY)))
{
scrollView.scrollEnabled = true
let contentInsets : UIEdgeInsets = UIEdgeInsetsMake(0.0, 0.0, keyboardRect!.size.height, 0.0)
scrollView.contentInset = contentInsets
scrollView.scrollIndicatorInsets = contentInsets
scrollView.scrollRectToVisible(activeFieldRect!, animated: true)
}
} else {
let contentInsets : UIEdgeInsets = UIEdgeInsetsZero
scrollView.contentInset = contentInsets
scrollView.scrollIndicatorInsets = contentInsets
scrollView.scrollEnabled = false
}
}
func textViewDidBeginEditing(textView: UITextView) {
activeFieldRect = textView.frame
adjustForKeyboard()
}
func textViewDidEndEditing(textView: UITextView) {
activeFieldRect = nil
adjustForKeyboard()
}
func textFieldDidBeginEditing(textField: UITextField)
{
activeFieldRect = textField.frame
adjustForKeyboard()
}
func textFieldDidEndEditing(textField: UITextField)
{
activeFieldRect = nil
adjustForKeyboard()
}
}
If you are trying to access the variable from another PHP file directly, you can include that file with include()
or include_once()
, giving you access to that variable. Note that this will include the entire first file in the second file.
transient
is used to indicate that a class field doesn't need to be serialized.
Probably the best example is a Thread
field. There's usually no reason to serialize a Thread
, as its state is very 'flow specific'.
for (int i = 0; i != 5; ++i, ++j)
do_something(i, j);
Regex if you want to ensure URL starts with HTTP/HTTPS:
https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)
If you do not require HTTP protocol:
[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)
To try this out see http://regexr.com?37i6s, or for a version which is less restrictive http://regexr.com/3e6m0.
Example JavaScript implementation:
var expression = /[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)?/gi;_x000D_
var regex = new RegExp(expression);_x000D_
var t = 'www.google.com';_x000D_
_x000D_
if (t.match(regex)) {_x000D_
alert("Successful match");_x000D_
} else {_x000D_
alert("No match");_x000D_
}
_x000D_
Assuming you are dealing with a JSON-string in the input, you can parse it using the json
package, see the documentation.
In the specific example you posted you would need
x = json.loads("""{
"accountWide": true,
"criteria": [
{
"description": "some description",
"id": 7553,
"max": 1,
"orderIndex": 0
}
]
}""")
description = x['criteria'][0]['description']
id = x['criteria'][0]['id']
max = x['criteria'][0]['max']
I find it quite remarkable that out of 6 answers, none of them have mentioned the real source of the problem.
Collapsing margins on the last p
inside #fw-footer
is where that extra space is originating from.
A sensible fix would be to add overflow: hidden
to #fw-footer
(or simply add margin: 0
on the last p
).
You could also just move the script
inside that last p
outside of the p
, and then remove the p
entirely; there's no need to wrap a script
in a p
. The first p
(#fw-foottext
) has margin: 0
applied, so the problem won't happen with that one.
As an aside, you've broken the fix I gave you in this question:
CSS3 gradient background with unwanted white space at bottom
You need html { height: 100% }
and body { min-height: 100% }
.
At the moment, you have html { height: auto }
being applied, which does not work:
(This happens with a window taller than the content on the page)
Another option is to get a ".pem" (public key) file for that particular server, and install it locally into the heart of your JRE's "cacerts" file (use the keytool helper application), then it will be able to download from that server without complaint, without compromising the entire SSL structure of your running JVM and enabling download from other unknown cert servers...
add_shortcode( 'seriesposts', 'series_posts' );
function series_posts( $atts )
{ ob_start();
$myseriesoption = get_option( '_myseries', null );
$type = $myseriesoption;
$args=array( 'post_type' => $type, 'post_status' => 'publish', 'posts_per_page' => 5, 'caller_get_posts'=> 1);
$my_query = null;
$my_query = new WP_Query($args);
if( $my_query->have_posts() ) {
echo '<ul>';
while ($my_query->have_posts()) : $my_query->the_post();
echo '<li><a href="';
echo the_permalink();
echo '">';
echo the_title();
echo '</a></li>';
endwhile;
echo '</ul>';
}
wp_reset_query();
return ob_get_clean(); }
//this will generate a shortcode function to be used on your site [seriesposts]
In order to get rid of duplicates, you can group by drinks.id
. But that way you'll get only one photo for each drinks.id
(which photo you'll get depends on database internal implementation).
Though it is not documented, in case of MySQL, you'll get the photo with lowest id
(in my experience I've never seen other behavior).
SELECT name, price, photo
FROM drinks, drinks_photos
WHERE drinks.id = drinks_id
GROUP BY drinks.id
Use jquery starts with attribute selector
$('[id^=editDialog]')
Alternative solution - 1 (highly recommended)
A cleaner solution is to add a common class to each of the divs & use
$('.commonClass')
.
But you can use the first one if html markup is not in your hands & cannot change it for some reason.
Alternative solution - 2 (not recommended if n is a large number
)
(as per @Mihai Stancu's suggestion)
$('#editDialog-0, #editDialog-1, #editDialog-2,...,#editDialog-n')
Note: If there are 2 or 3 selectors and if the list doesn't change, this is probably a viable solution but it is not extensible because we have to update the selectors when there is a new ID in town.
Thanks Friend, i got an answer. This is only possible because of your help. you all give me a ray of hope towards resolving this problem.
Here is the code:
package facebook;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.interactions.Actions;
public class Facebook {
public static void main(String args[]){
WebDriver driver = new FirefoxDriver();
driver.get("http://www.facebook.com");
WebElement email= driver.findElement(By.id("email"));
Actions builder = new Actions(driver);
Actions seriesOfActions = builder.moveToElement(email).click().sendKeys(email, "[email protected]");
seriesOfActions.perform();
WebElement pass = driver.findElement(By.id("pass"));
WebElement login =driver.findElement(By.id("u_0_b"));
Actions seriesOfAction = builder.moveToElement(pass).click().sendKeys(pass, "naveench").click(login);
seriesOfAction.perform();
driver.
}
}
I'm very unsure about this, but my project uses 'convention singletons' (not enforced singletons), that is, if I have a class called DataController
, I define this in the same module:
_data_controller = None
def GetDataController():
global _data_controller
if _data_controller is None:
_data_controller = DataController()
return _data_controller
It is not elegant, since it's a full six lines. But all my singletons use this pattern, and it's at least very explicit (which is pythonic).
single/double quotes
and backslash
everywhere:
$ python -c 'exec("import sys\nfor i in range(10): print \"bob\"")'
Much better:
$ python -c '
> import sys
> for i in range(10):
> print "bob"
> '
I am using a regex to make sure that I only allow letters, number and a space
Then it is as simple as adding a space to what you've already got:
$newtag = preg_replace("/[^a-zA-Z0-9 ]/", "", $tag);
(note, I removed the s|
which seemed unintentional? Certainly the s
was redundant; you can restore the |
if you need it)
If you specifically want *a* space, as in only a single one, you will need a more complex expression than this, and might want to consider a separate non-regex piece of logic.
In IE9+, Chrome or Firefox you can do:
var checkedBoxes = document.querySelectorAll('input[name=mycheckboxes]:checked');
In C++17, we can use variants.
To use std::variant
, you need to include the header:
#include <variant>
After that, you may add std::variant
in your code like this:
using Type = std::variant<Animal, Person>;
template <class T>
void foo(Type type) {
if (std::is_same_v<type, Animal>) {
// Do stuff...
} else {
// Do stuff...
}
}
For me following easy steps works:
1. git checkout myFeature
2. git rebase master
3. git push --force-with-lease
4. git branch -f master HEAD
5. git checkout master
6. git pull
After doing all above, we can delete myFeature branch as well by following command:
git push origin --delete myFeature
Just using replace
:
var text = 'Hello World';_x000D_
_x000D_
new_text = text.replace(' ', '_');_x000D_
_x000D_
console.log(new_text);
_x000D_
Use Math.round()
, possibly in conjunction with MidpointRounding.AwayFromZero
eg:
Math.Round(1.2) ==> 1
Math.Round(1.5) ==> 2
Math.Round(2.5) ==> 2
Math.Round(2.5, MidpointRounding.AwayFromZero) ==> 3
2 steps to check if a cronjob is working :
Manually run php command :
/usr/bin/php /mydomain.in/cromail.php
And check if any error is displayed
You can get the total number of rows containing a specific name using:
SELECT COUNT(*) FROM tbl_foo WHERE name = 'sarmen'
Given the count, you can now get the nth row using:
SELECT * FROM tbl_foo WHERE name = 'sarmen' LIMIT (n - 1), 1
Where 1 <= n <= COUNT(*) from the first query.
Example:
getting the 3rd row
SELECT * FROM tbl_foo WHERE name = 'sarmen' LIMIT 2, 1
It's not doable with CSS2.1, but it is possible with CSS3 attribute substring-matching selectors (which are supported in IE7+):
div[class^="status-"], div[class*=" status-"]
Notice the space character in the second attribute selector. This picks up div
elements whose class
attribute meets either of these conditions:
[class^="status-"]
— starts with "status-"
[class*=" status-"]
— contains the substring "status-" occurring directly after a space character. Class names are separated by whitespace per the HTML spec, hence the significant space character. This checks any other classes after the first if multiple classes are specified, and adds a bonus of checking the first class in case the attribute value is space-padded (which can happen with some applications that output class
attributes dynamically).
Naturally, this also works in jQuery, as demonstrated here.
The reason you need to combine two attribute selectors as described above is because an attribute selector such as [class*="status-"]
will match the following element, which may be undesirable:
<div id='D' class='foo-class foo-status-bar bar-class'></div>
If you can ensure that such a scenario will never happen, then you are free to use such a selector for the sake of simplicity. However, the combination above is much more robust.
If you have control over the HTML source or the application generating the markup, it may be simpler to just make the status-
prefix its own status
class instead as Gumbo suggests.
You need a Python DictReader class. More help can be found from here
import csv
with open('file_name.csv', 'rt') as f:
reader = csv.DictReader(f)
for row in reader:
print row
This task can also be solved with a different approach. Instead of programming a converter and enlarging the code in the XAML, you can also aggregate the various parameters in the ViewModel. As a result, the ViewModel then has one more property that contains all parameters.
An example of my current application, which also let me deal with the topic. A generic RelayCommand is required: https://stackoverflow.com/a/22286816/7678085
The ViewModelBase is extended here by a command SaveAndClose. The generic type is a named tuple that represents the various parameters.
public ICommand SaveAndCloseCommand => saveAndCloseCommand ??= new RelayCommand<(IBaseModel Item, Window Window)>
(execute =>
{
execute.Item.Save();
execute.Window?.Close(); // if NULL it isn't closed.
},
canExecute =>
{
return canExecute.Item?.IsItemValide ?? false;
});
private ICommand saveAndCloseCommand;
Then it contains a property according to the generic type:
public (IBaseModel Item, Window Window) SaveAndCloseParameter
{
get => saveAndCloseParameter ;
set
{
SetProperty(ref saveAndCloseParameter, value);
}
}
private (IBaseModel Item, Window Window) saveAndCloseParameter;
The XAML code of the view then looks like this: (Pay attention to the classic click event)
<Button
Command="{Binding SaveAndCloseCommand}"
CommandParameter="{Binding SaveAndCloseParameter}"
Click="ButtonApply_Click"
Content="Apply"
Height="25" Width="100" />
<Button
Command="{Binding SaveAndCloseCommand}"
CommandParameter="{Binding SaveAndCloseParameter}"
Click="ButtonSave_Click"
Content="Save"
Height="25" Width="100" />
and in the code behind of the view, then evaluating the click events, which then set the parameter property.
private void ButtonApply_Click(object sender, RoutedEventArgs e)
{
computerViewModel.SaveAndCloseParameter = (computerViewModel.Computer, null);
}
private void ButtonSave_Click(object sender, RoutedEventArgs e)
{
computerViewModel.SaveAndCloseParameter = (computerViewModel.Computer, this);
}
Personally, I think that using the click events is not a break with the MVVM pattern. The program flow control is still located in the area of ??the ViewModel.
There are five methods which I know: time.sleep()
, pygame.time.wait()
, matplotlib's pyplot.pause()
, .after()
, and asyncio.sleep()
.
time.sleep()
example (do not use if using tkinter):
import time
print('Hello')
time.sleep(5) # Number of seconds
print('Bye')
pygame.time.wait()
example (not recommended if you are not using the pygame window, but you could exit the window instantly):
import pygame
# If you are going to use the time module
# don't do "from pygame import *"
pygame.init()
print('Hello')
pygame.time.wait(5000) # Milliseconds
print('Bye')
matplotlib's function pyplot.pause()
example (not recommended if you are not using the graph, but you could exit the graph instantly):
import matplotlib
print('Hello')
matplotlib.pyplot.pause(5) # Seconds
print('Bye')
The .after()
method (best with Tkinter):
import tkinter as tk # Tkinter for Python 2
root = tk.Tk()
print('Hello')
def ohhi():
print('Oh, hi!')
root.after(5000, ohhi) # Milliseconds and then a function
print('Bye')
Finally, the asyncio.sleep()
method:
import asyncio
asyncio.sleep(5)
Based on the documentation the origin
parameter is optional and it defaults to the user's location.
... Defaults to most relevant starting location, such as user location, if available. If none, the resulting map may provide a blank form to allow a user to enter the origin....
ex: https://www.google.com/maps/dir/?api=1&destination=Pike+Place+Market+Seattle+WA&travelmode=bicycling
For me this works on Desktop, IOS and Android.
I know the topic is a bit old and seems stale, but anyway I was able to use these options:
deploy:
resources:
limits:
cpus: '0.001'
memory: 50M
when using 3.7 version of docker-compose
What helped in my case, was using this command:
docker-compose --compatibility up
--compatibility
flag stands for (taken from the documentation):
If set, Compose will attempt to convert deploy keys in v3 files to their non-Swarm equivalent
Think it's great, that I don't have to revert my docker-compose file back to v2.
In case you are like me, and cannot work out how to use "regular expression with capturing groups" for extract
, the following code replicates the extract(...)
line in Hadleys' answer:
df %>%
gather(question_number, value, starts_with("Q3.")) %>%
mutate(loop_number = str_sub(question_number,-2,-2), question_number = str_sub(question_number,1,4)) %>%
select(id, time, loop_number, question_number, value) %>%
spread(key = question_number, value = value)
The problem here is that the initial gather forms a key column that is actually a combination of two keys. I chose to use mutate
in my original solution in the comments to split this column into two columns with equivalent info, a loop_number
column and a question_number
column. spread
can then be used to transform the long form data, which are key value pairs (question_number, value)
to wide form data.
I was able to unistall jdk 8 in mavericks successfully doing the following steps:
Run this command to just remove the JDK
sudo rm -rf /Library/Java/JavaVirtualMachines/jdk<version>.jdk
Run these commands if you want to remove plugins
sudo rm -rf /Library/PreferencePanes/JavaControlPanel.prefPane
sudo rm -rf /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin
sudo rm -rf /Library/LaunchAgents/com.oracle.java.Java-Updater.plist
sudo rm -rf /Library/PrivilegedHelperTools/com.oracle.java.JavaUpdateHelper
sudo rm -rf /Library/LaunchDaemons/com.oracle.java.Helper-Tool.plist
sudo rm -rf /Library/Preferences/com.oracle.java.Helper-Tool.plist
In short you have to do like this
repositories {
maven { url "http://maven.springframework.org/release" }
maven { url "https://maven.fabric.io/public" }
}
Detail:
You need to specify each maven URL in its own curly braces. Here is what I got working with skeleton dependencies for the web services project I’m going to build up:
apply plugin: 'java'
sourceCompatibility = 1.7
version = '1.0'
repositories {
maven { url "http://maven.springframework.org/release" }
maven { url "http://maven.restlet.org" }
mavenCentral()
}
dependencies {
compile group:'org.restlet.jee', name:'org.restlet', version:'2.1.1'
compile group:'org.restlet.jee', name:'org.restlet.ext.servlet',version.1.1'
compile group:'org.springframework', name:'spring-web', version:'3.2.1.RELEASE'
compile group:'org.slf4j', name:'slf4j-api', version:'1.7.2'
compile group:'ch.qos.logback', name:'logback-core', version:'1.0.9'
testCompile group:'junit', name:'junit', version:'4.11'
}
there you go.
private void YurTextBox_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
YourButton_Click(this, new EventArgs());
}
}
You are 90% of the way there.
^[0-9,;]+$
Starting with the carat ^
indicates a beginning of line.
The [
indicates a character set
The 0-9
indicates characters 0 through 9, the comma ,
indicates comma, and the semicolon indicates a ;
.
The closing ]
indicates the end of the character set.
The plus +
indicates that one or more of the "previous item" must be present. In this case it means that you must have one or more of the characters in the previously declared character set.
The dollar $
indicates the end of the line.
Here's another example you can choose the weekend dates as well,
public int GetBuisnessDays(DateTime StartDate, DateTime EndDate)
{
int counter = 0;
if (StartDate.Date == EndDate.Date)
{
if (StartDate.DayOfWeek != DayOfWeek.Saturday && StartDate.DayOfWeek != DayOfWeek.Friday)
return 1;
return 0;
}
while (StartDate <= EndDate)
{
if (StartDate.DayOfWeek != DayOfWeek.Saturday && StartDate.DayOfWeek != DayOfWeek.Friday)
++counter;
StartDate = StartDate.AddDays(1);
}
return counter;
}
Implement OnClickListener() on your Activity...
public class MyActivity extends Activity implements View.OnClickListener {
}
For each button use...
buttonX.setOnClickListener(this);
In your Activity onClick() method test for which button it is...
@Override
public void onClick(View view) {
if (View.equals(buttonX))
// Do something
}
Also in onClick you could use view.getId() to get the resource ID and then use that in a switch/case block to identify each button and perform the relevant action.
Spring annotations will work fine if you remove enctype="multipart/form-data"
.
@RequestParam(value="txtEmail", required=false)
You can even get the parameters from the request
object .
request.getParameter(paramName);
Use a form in case the number of attributes are large. It will be convenient. Tutorial to get you started.
Configure the Multi-part resolver if you want to receive enctype="multipart/form-data"
.
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize" value="250000"/>
</bean>
Refer the Spring documentation.
SELECT json_agg(t) FROM t
for a JSON array of objects, and
SELECT
json_build_object(
'a', json_agg(t.a),
'b', json_agg(t.b)
)
FROM t
for a JSON object of arrays.
This section describes how to generate a JSON array of objects, with each row being converted to a single object. The result looks like this:
[{"a":1,"b":"value1"},{"a":2,"b":"value2"},{"a":3,"b":"value3"}]
The json_agg
function produces this result out of the box. It automatically figures out how to convert its input into JSON and aggregates it into an array.
SELECT json_agg(t) FROM t
There is no jsonb
(introduced in 9.4) version of json_agg
. You can either aggregate the rows into an array and then convert them:
SELECT to_jsonb(array_agg(t)) FROM t
or combine json_agg
with a cast:
SELECT json_agg(t)::jsonb FROM t
My testing suggests that aggregating them into an array first is a little faster. I suspect that this is because the cast has to parse the entire JSON result.
9.2 does not have the json_agg
or to_json
functions, so you need to use the older array_to_json
:
SELECT array_to_json(array_agg(t)) FROM t
You can optionally include a row_to_json
call in the query:
SELECT array_to_json(array_agg(row_to_json(t))) FROM t
This converts each row to a JSON object, aggregates the JSON objects as an array, and then converts the array to a JSON array.
I wasn't able to discern any significant performance difference between the two.
This section describes how to generate a JSON object, with each key being a column in the table and each value being an array of the values of the column. It's the result that looks like this:
{"a":[1,2,3], "b":["value1","value2","value3"]}
We can leverage the json_build_object
function:
SELECT
json_build_object(
'a', json_agg(t.a),
'b', json_agg(t.b)
)
FROM t
You can also aggregate the columns, creating a single row, and then convert that into an object:
SELECT to_json(r)
FROM (
SELECT
json_agg(t.a) AS a,
json_agg(t.b) AS b
FROM t
) r
Note that aliasing the arrays is absolutely required to ensure that the object has the desired names.
Which one is clearer is a matter of opinion. If using the json_build_object
function, I highly recommend putting one key/value pair on a line to improve readability.
You could also use array_agg
in place of json_agg
, but my testing indicates that json_agg
is slightly faster.
There is no jsonb
version of the json_build_object
function. You can aggregate into a single row and convert:
SELECT to_jsonb(r)
FROM (
SELECT
array_agg(t.a) AS a,
array_agg(t.b) AS b
FROM t
) r
Unlike the other queries for this kind of result, array_agg
seems to be a little faster when using to_jsonb
. I suspect this is due to overhead parsing and validating the JSON result of json_agg
.
Or you can use an explicit cast:
SELECT
json_build_object(
'a', json_agg(t.a),
'b', json_agg(t.b)
)::jsonb
FROM t
The to_jsonb
version allows you to avoid the cast and is faster, according to my testing; again, I suspect this is due to overhead of parsing and validating the result.
The json_build_object
function was new to 9.5, so you have to aggregate and convert to an object in previous versions:
SELECT to_json(r)
FROM (
SELECT
json_agg(t.a) AS a,
json_agg(t.b) AS b
FROM t
) r
or
SELECT to_jsonb(r)
FROM (
SELECT
array_agg(t.a) AS a,
array_agg(t.b) AS b
FROM t
) r
depending on whether you want json
or jsonb
.
(9.3 does not have jsonb
.)
In 9.2, not even to_json
exists. You must use row_to_json
:
SELECT row_to_json(r)
FROM (
SELECT
array_agg(t.a) AS a,
array_agg(t.b) AS b
FROM t
) r
Find the documentation for the JSON functions in JSON functions.
json_agg
is on the aggregate functions page.
If performance is important, ensure you benchmark your queries against your own schema and data, rather than trust my testing.
Whether it's a good design or not really depends on your specific application. In terms of maintainability, I don't see any particular problem. It simplifies your app code and means there's less to maintain in that portion of the app. If PG can give you exactly the result you need out of the box, the only reason I can think of to not use it would be performance considerations. Don't reinvent the wheel and all.
Aggregate functions typically give back NULL
when they operate over zero rows. If this is a possibility, you might want to use COALESCE
to avoid them. A couple of examples:
SELECT COALESCE(json_agg(t), '[]'::json) FROM t
Or
SELECT to_jsonb(COALESCE(array_agg(t), ARRAY[]::t[])) FROM t
Credit to Hannes Landeholm for pointing this out
I just encountered this problem in my Xcode 4. To fix it, you need to put all the correct provisions into both Debug and Release config.
I was trying to submit (by archiving) my app. So I just change the Debug provisions to "Don't Code Sign", and the Release provision to my app's appstore provision.
This fix it and enables me to archive normally. Hope that helps.
How are you generating your data?
See how the output shows that your data is of 'object' type? the groupby operations specifically check whether each column is a numeric dtype first.
In [31]: data
Out[31]:
<class 'pandas.core.frame.DataFrame'>
DatetimeIndex: 2557 entries, 2004-01-01 00:00:00 to 2010-12-31 00:00:00
Freq: <1 DateOffset>
Columns: 360 entries, -89.75 to 89.75
dtypes: object(360)
look ?
Did you initialize an empty DataFrame first and then filled it? If so that's probably why it changed with the new version as before 0.9 empty DataFrames were initialized to float type but now they are of object type. If so you can change the initialization to DataFrame(dtype=float)
.
You can also call frame.astype(float)
docker cp containerId:source_path destination_path
containerId can be obtained from the command docker ps -a
source path should be absolute. for example, if the application/service directory starts from the app in your docker container the path would be /app/some_directory/file
example : docker cp d86844abc129:/app/server/output/server-test.png C:/Users/someone/Desktop/output
My problem was with TIMEZONE
in emulator genymotion. Change TIMEZONE ANDROID EMULATOR
equal TIMEZONE SERVER
, solved problem.
max-width is the width of the target display area, e.g. the browser; max-device-width is the width of the device's entire rendering area, i.e. the actual device screen.
• If you are using the max-device-width, when you change the size of the browser window on your desktop, the CSS style won't change to different media query setting;
• If you are using the max-width, when you change the size of the browser on your desktop, the CSS will change to different media query setting and you might be shown with the styling for mobiles, such as touch-friendly menus.
Simply use the separator image as a background image on the li
.
To get it to only appear in between list items, position the image to the left of the li
, but not on the first one.
For example:
#nav li + li {
background:url('seperator.gif') no-repeat top left;
padding-left: 10px
}
This CSS adds the image to every list item that follows another list item - in other words all of them but the first.
NB. Be aware the adjacent selector (li + li) doesn't work in IE6, so you will have to just add the background image to the conventional li (with a conditional stylesheet) and perhaps apply a negative margin to one of the edges.
A call to your parent class's empty constructor super()
is done automatically when you don't do it yourself. That's the reason you've never had to do it in your code. It was done for you.
When your superclass doesn't have a no-arg constructor, the compiler will require you to call super
with the appropriate arguments. The compiler will make sure that you instantiate the class correctly. So this is not something you have to worry about too much.
Whether you call super()
in your constructor or not, it doesn't affect your ability to call the methods of your parent class.
As a side note, some say that it's generally best to make that call manually for reasons of clarity.
The new
and delete
operators can operate on classes and structures, whereas malloc
and free
only work with blocks of memory that need to be cast.
Using new/delete
will help to improve your code as you will not need to cast allocated memory to the required data structure.
This is one fairly economical approach, at least in terms of the source code:
function s() {
var args = [],index;
for (index = 0; index< arguments.length; index++) {
args.push (arguments [index]);
}
return args.join ("\n");
}
console.log (s (
"This is the first line",
"and this is the second",
"finally a third"
));
function s() {return arguments.join ("\n")}
would be nicer of course if the "arguments" property were a proper array.
A second version might use "" to do the join for cases when you want to control the line breaks in a very long string.
I think that the problem is in the nesting of the elements. Once you attach an event to the outer element the clicks on the inner elements are actually firing the same click event for the outer element. So, you actually never go to the second state. What you can do is to check the clicked element. And if it is the close button then to avoid the class changing. Here is my solution:
var element = $(".clickable");
var closeButton = element.find(".close_button");
var onElementClick = function(e) {
if(e.target !== closeButton[0]) {
element.removeClass("spot").addClass("grown");
element.off("click");
closeButton.on("click", onCloseClick);
}
}
var onCloseClick = function() {
element.removeClass("grown").addClass("spot");
closeButton.off("click");
element.on("click", onElementClick);
}
element.on("click", onElementClick);
In addition I'm adding and removing event handlers.
JSFiddle -> http://jsfiddle.net/zmw9E/1/
An alternative way to get only one character.
$str = 'abcdefghij';
echo $str{5};
I would particularly not use this, but for the purpose of education. We can use that to answer the question:
$newString = '';
for ($i = 0; $i < 5; $i++) {
$newString .= $str{$i};
}
echo $newString;
For anyone using that. Bear in mind curly brace syntax for accessing array elements and string offsets is deprecated from PHP 7.4
More information: https://wiki.php.net/rfc/deprecate_curly_braces_array_access
I absolutely prefer the idea of Jeff Yates. It will work perfectly, if you slightly modify it:
string regex = String.Format("[{0}]", Regex.Escape(new string(Path.GetInvalidFileNameChars())));
Regex removeInvalidChars = new Regex(regex, RegexOptions.Singleline | RegexOptions.Compiled | RegexOptions.CultureInvariant);
The improvement is just to escape the automaticially generated regex.
One line that i've made and it works:
listView1.Items.Add(new ListViewItem { ImageIndex = 0, Text = randomArray["maintext"], SubItems = { randomArray["columntext2"], randomArray["columntext3"] } });
Sometimes you need to apply a function to the members of a list in place. The following code worked for me:
>>> def func(a, i):
... a[i] = a[i].lower()
>>> a = ['TEST', 'TEXT']
>>> list(map(lambda i:func(a, i), range(0, len(a))))
[None, None]
>>> print(a)
['test', 'text']
Please note, the output of map() is passed to the list constructor to ensure the list is converted in Python 3. The returned list filled with None values should be ignored, since our purpose was to convert list a in place
In your second example the "map" reference is of type Map
, which is an interface implemented by HashMap
(and other types of Map
). This interface is a contract saying that the object maps keys to values and supports various operations (e.g. put
, get
). It says nothing about the implementation of the Map
(in this case a HashMap
).
The second approach is generally preferred as you typically wouldn't want to expose the specific map implementation to methods using the Map
or via an API definition.
if you have a char/varchar value formatted as the standard GUID, you can simply store it as BINARY(16) using the simple CAST(MyString AS BINARY16), without all those mind-boggling sequences of CONCAT + SUBSTR.
BINARY(16) fields are compared/sorted/indexed much faster than strings, and also take two times less space in the database
// http://javascript.crockford.com/memory/leak.html
// cleans dom element to prevent memory leaks
function domPurge(d) {
var a = d.attributes, i, l, n;
if (a) {
for (i = a.length - 1; i >= 0; i -= 1) {
n = a[i].name;
if (typeof d[n] === 'function') {
d[n] = null;
}
}
}
a = d.childNodes;
if (a) {
l = a.length;
for (i = 0; i < l; i += 1) {
domPurge(d.childNodes[i]);
}
}
}
function domRemove(id) {
var elem = document.getElementById(id);
domPurge(elem);
return elem.parentNode.removeChild(elem);
}
I've used this in the past and it doesn't require a full table scan to see if something exists. It's super fast...
UPDATE TableName SET column=value WHERE column=value
IF @@ROWCOUNT=0
BEGIN
--Do work
END
You can also not draw the header or footer at all by setting sDom
: http://datatables.net/usage/options#sDom
'sDom': 't'
will display JUST the table, no headers or footers or anything.
It's discussed some here: http://www.datatables.net/forums/discussion/2722/how-to-hide-empty-header-and-footer/p1
Add this to script object from your project's package.json file
"start":"nodemon index.js"
It should be like this
"scripts": { "start":"nodemon index.js" }
Try this;
function X (id,parameter1,parameter2,...) {
$.ajax({
url: '@Url.Action("Actionre", "controller")',+ id,
type: "Get",
data: { parameter1: parameter1, parameter2: parameter2,...}
}).done(function(result) {
your code...
});
}
So controller method would looks like :
public ActionResult ActionName(id,parameter1, parameter2,...)
{
Your Code .......
}
using str.replace(regex, $1);
:
var str = 'asd-0.testing';
var regex = /(asd-)\d(\.\w+)/;
if (str.match(regex)) {
str = str.replace(regex, "$1" + "1" + "$2");
}
Edit: adaptation regarding the comment
I like the idea of wrapping this in a class and implementing __getitem__
and __setitem__
such that they implemented a simple query language:
>>> d['new jersey/mercer county/plumbers'] = 3
>>> d['new jersey/mercer county/programmers'] = 81
>>> d['new jersey/mercer county/programmers']
81
>>> d['new jersey/mercer country']
<view which implicitly adds 'new jersey/mercer county' to queries/mutations>
If you wanted to get fancy you could also implement something like:
>>> d['*/*/programmers']
<view which would contain 'programmers' entries>
but mostly I think such a thing would be really fun to implement :D
Just another example to add BigDecimals
. Key point is that they are immutable and they can be initialized only in the constructor. Here is the code:
import java.util.*;
import java.math.*;
public class Main {
public static void main(String[] args) {
Scanner sc;
boolean first_right_number = false;
BigDecimal initBigDecimal = BigDecimal.ZERO;
BigDecimal add1 = BigDecimal.ZERO;
BigDecimal add2 = BigDecimal.ZERO;
while (!first_right_number)
{
System.out.print("Enter a first single numeric value: ");
sc = new Scanner(System.in);
if (sc.hasNextBigDecimal())
{
first_right_number = true;
add1 = sc.nextBigDecimal();
}
}
boolean second_right_number = false;
while (!second_right_number)
{
System.out.print("Enter a second single numeric value: ");
sc = new Scanner(System.in);
if (sc.hasNextBigDecimal())
{
second_right_number = true;
add2 = sc.nextBigDecimal();
}
}
BigDecimal result = initBigDecimal.add(add1).add(add2);
System.out.println("Sum of the 2 numbers is: " + result.toString());
}
}
I've written a script to get all child process pids of a parent process. Here is the code. Hope it will help.
function getcpid() {
cpids=`pgrep -P $1|xargs`
# echo "cpids=$cpids"
for cpid in $cpids;
do
echo "$cpid"
getcpid $cpid
done
}
getcpid $1
SqlBulkCopy class is best for SQL server,
Doing Bulk Upload/Insert of DataTable to a Table in SQL server in C#
If you have pending scheduled local notifications and don't want to use cancelAllLocalNotifications
to clear old ones in Notification Center, you can also do the following:
[UIApplication sharedApplication].scheduledLocalNotifications = [UIApplication sharedApplication].scheduledLocalNotifications;
It appears that if you set the scheduledLocalNotifications
it clears the old ones in Notification Center, and by setting it to itself, you retain the pending local notifications.
There is a new project SQLJet that is a pure Java implementation of SQLite. It doesn't support all of the SQLite features yet, but may be a very good option for some of the Java projects that work with SQLite databases.
You likely need to re-start VNC on both ends. i.e. when you say "restarted VNC", you probably just mean the client. But what about the other end? You likely need to re-start that end too. The root cause is likely a conflict. Many apps spy on the clipboard when they shouldn't. And many apps are not forgiving when they go to open the clipboard and can't. Robust ones will retry, others will simply not anticipate a failure and then they get fouled up and need to be restarted. Could be VNC, or it could be another app that's "listening" to the clipboard viewer chain, where it is obligated to pass along notifications to the other apps in the chain. If the notifications aren't sent, then VNC may not even know that there has been a clipboard update.
If these strings are currently in the db, you can skip php by using mysql's STR_TO_DATE() function.
I assume the strings use a format like month/day/year
where month
and day
are always 2 digits, and year
is 4 digits.
UPDATE some_table
SET new_column = STR_TO_DATE(old_column, '%m/%d/%Y')
You can support other date formats by using other format specifiers.
exports.handler = async (event) => {
let query = event.queryStringParameters;
console.log(`id: ${query.id}`);
const response = {
statusCode: 200,
body: "Hi",
};
return response;
};
onerror Event
*Update August 2017: onerror is fired by Chrome and Firefox. onload is fired by Internet Explorer. Edge fires neither onerror nor onload. I wouldnt use this method but it could work in some cases. See also
<link> onerror do not work in IE
*
Definition and Usage The onerror event is triggered if an error occurs while loading an external file (e.g. a document or an image).
Tip: When used on audio/video media, related events that occurs when there is some kind of disturbance to the media loading process, are:
In HTML:
element onerror="myScript">
In JavaScript, using the addEventListener() method:
object.addEventListener("error", myScript);
Note: The addEventListener() method is not supported in Internet Explorer 8 and earlier versions.
Example Execute a JavaScript if an error occurs when loading an image:
img src="image.gif" onerror="myFunction()">
SELECT
SUBSTRING_INDEX(
SUBSTRING_INDEX(
GROUP_CONCAT(field ORDER BY field),
',',
((
ROUND(
LENGTH(GROUP_CONCAT(field)) -
LENGTH(
REPLACE(
GROUP_CONCAT(field),
',',
''
)
)
) / 2) + 1
)),
',',
-1
)
FROM
table
The above seems to work for me.
Here is one more robust version from Protocol Buffer
char* string_as_array(string* str)
{
return str->empty() ? NULL : &*str->begin();
}
// test codes
std::string mystr("you are here");
char* pstr = string_as_array(&mystr);
cout << pstr << endl; // you are here
I fear this might turn out to BE the long way round but could depend on how big your data set is – presumably more than four months for example.
Assuming your data is in ColumnA:C
and has column labels in Row 1, also that Month is formatted mmm
(this last for ease of sorting):
D2
=IF(AND(A2=A1,C2=C1),D1+1,1)
(One way to deal with what is the tricky issue of multiple entries for the same person for the same month).A1:D(last occupied row no.)
F1
.I’m hoping this would be adequate for your needs because pivot table should automatically update (provided range is appropriate) in response to additional data with refresh. If not (you hard taskmaster), continue but beware that the following steps would need to be repeated each time the source data changes.
L1
.L1
and shift down.L1
.ColumnL
, select Row Labels
and numeric values.L2:L(last selected cell)
Happy to explain further/try again (I've not really tested this) if does not suit.
EDIT (To avoid second block of steps above and facilitate updating for source data changes)
.0. Before first step 2. add a blank row at the very top and move A2:D2
up.
.2. Adjust cell references accordingly (in D3
=IF(AND(A3=A2,C3=C2),D2+1,1)
.
.3. Create pivot table from A:D
.6. Overwrite Row Labels
with Name
.
.7. PivotTable Tools, Design, Report Layout, Show in Tabular Form and sort rows and columns A>Z.
.8. Hide Row1
, ColumnG
and rows and columns that show (blank)
.
Steps .0. and .2. in the edit are not required if the pivot table is in a different sheet from the source data (recommended).
Step .3. in the edit is a change to simplify the consequences of expanding the source data set. However introduces (blank)
into pivot table that if to be hidden may need adjustment on refresh. So may be better to adjust source data range each time that changes instead: PivotTable Tools, Options, Change Data Source, Change Data Source, Select a table or range). In which case copy rather than move in .0.
scp -r C:/site user@server_ip:path
path
is the place, where site
will be copied into the remote server
EDIT: As I said in my comment, try pscp
, as you want to use scp
using PuTTY
.
The other option is WinSCP
If you're using jQuery, this solution from a comment made here is pretty slick:
$(function(){
$('form').each(function () {
var thisform = $(this);
thisform.prepend(thisform.find('button.default').clone().css({
position: 'absolute',
left: '-999px',
top: '-999px',
height: 0,
width: 0
}));
});
});
Just add class="default"
to the button you want to be the default. It puts a hidden copy of that button right at the beginning of the form.
There are two important concepts in multithreading environment:
The volatile
keyword eradicates visibility problems, but it does not deal with atomicity. volatile
will prevent the compiler from reordering instructions which involve a write and a subsequent read of a volatile variable; e.g. k++
.
Here, k++
is not a single machine instruction, but three:
So, even if you declare a variable as volatile
, this will not make this operation atomic; this means another thread can see a intermediate result which is a stale or unwanted value for the other thread.
On the other hand, AtomicInteger
, AtomicReference
are based on the Compare and swap instruction. CAS has three operands: a memory location V
on which to operate, the expected old value A
, and the new value B
. CAS
atomically updates V
to the new value B
, but only if the value in V
matches the expected old value A
; otherwise, it does nothing. In either case, it returns the value currently in V
. The compareAndSet()
methods of AtomicInteger
and AtomicReference
take advantage of this functionality, if it is supported by the underlying processor; if it is not, then the JVM implements it via spin lock.
The shortest I got: b = a[:2] + [3] + a[2:]
>>>
>>> a = [1, 2, 4]
>>> print a
[1, 2, 4]
>>> b = a[:2] + [3] + a[2:]
>>> print a
[1, 2, 4]
>>> print b
[1, 2, 3, 4]
// following declaration of delegate ,,,
public delegate long GetEnergyUsageDelegate(DateTime lastRunTime,
DateTime procDateTime);
// following inside of some client method
GetEnergyUsageDelegate nrgDel = GetEnergyUsage;
IAsyncResult aR = nrgDel.BeginInvoke(lastRunTime, procDT, null, null);
while (!aR.IsCompleted) Thread.Sleep(500);
int usageCnt = nrgDel.EndInvoke(aR);
Charles your code(above) is not correct. You do not need to spin wait for completion. EndInvoke will block until the WaitHandle is signaled.
If you want to block until completion you simply need to
nrgDel.EndInvoke(nrgDel.BeginInvoke(lastRuntime,procDT,null,null));
or alternatively
ar.AsyncWaitHandle.WaitOne();
But what is the point of issuing anyc calls if you block? You might as well just use a synchronous call. A better bet would be to not block and pass in a lambda for cleanup:
nrgDel.BeginInvoke(lastRuntime,procDT,(ar)=> {ar.EndInvoke(ar);},null);
One thing to keep in mind is that you must call EndInvoke. A lot of people forget this and end up leaking the WaitHandle as most async implementations release the waithandle in EndInvoke.
4 spaces do the trick even inside definition list:
Endpoint
: `/listAgencies`
Method
: `GET`
Arguments
: * `level` - bla-bla.
* `withDisabled` - should we include disabled `AGENT`s.
* `userId` - bla-bla.
I am documenting API using BitBucket Wiki and Markdown proprietary extension for definition list is most pleasing (MD's table syntax is awful, imaging multiline and embedding requirements...).
That's what ln
is documented to do when the target already exists and is a directory. If you want /etc/nginx
to be a symlink rather than contain a symlink, you had better not create it as a directory first!
Since you don't care, I chose the max ID for each number.
select tbl.* from tbl
inner join (
select max(id) as maxID, number from tbl group by number) maxID
on maxID.maxID = tbl.id
Query Explanation
select
tbl.* -- give me all the data from the base table (tbl)
from
tbl
inner join ( -- only return rows in tbl which match this subquery
select
max(id) as maxID -- MAX (ie distinct) ID per GROUP BY below
from
tbl
group by
NUMBER -- how to group rows for the MAX aggregation
) maxID
on maxID.maxID = tbl.id -- join condition ie only return rows in tbl
-- whose ID is also a MAX ID for a given NUMBER
The error could be improved, but the problem with your first version is you have a member variable, delegate
, that does not have a default value. All variables in Swift must always have a value. That means that you have to set it up in an initializer which you do not have or you could provide it a default value in-line.
When you make it optional, you allow it to be nil
by default, removing the need to explicitly give it a value or initialize it.
You can also delete cookies without using jquery.cookie plugin:
document.cookie = 'NAMEOFYOURCOOKIE' + '=; expires=Thu, 01-Jan-70 00:00:01 GMT;';
Use an std::vector
.
std::vector< std::vector<int> > my_array; /* 2D Array */
my_array.size(); /* size of y */
my_array[0].size(); /* size of x */
Or, if you can only use a good ol' array, you can use sizeof
.
sizeof( my_array ); /* y size */
sizeof( my_array[0] ); /* x size */
if (new DateTime(5000) > new DateTime(1000))
{
Console.WriteLine("i win");
}
Can't change the default browser, but try this (found online a while ago). Add a bookmark in Safari called "Open in Chrome" with the following.
javascript:location.href=%22googlechrome%22+location.href.substring(4);
Will open the current page in Chrome. Not as convenient, but maybe someone will find it useful.
Works for me.
There is just a caveat that I discovered today.
If you have a function that is calling a plot a lot of times you better use plt.close(fig)
instead of fig.clf()
somehow the first does not accumulate in memory. In short if memory is a concern use plt.close(fig) (Although it seems that there are better ways, go to the end of this comment for relevant links).
So the the following script will produce an empty list:
for i in range(5):
fig = plot_figure()
plt.close(fig)
# This returns a list with all figure numbers available
print(plt.get_fignums())
Whereas this one will produce a list with five figures on it.
for i in range(5):
fig = plot_figure()
fig.clf()
# This returns a list with all figure numbers available
print(plt.get_fignums())
From the documentation above is not clear to me what is the difference between closing a figure and closing a window. Maybe that will clarify.
If you want to try a complete script there you have:
import numpy as np
import matplotlib.pyplot as plt
x = np.arange(1000)
y = np.sin(x)
for i in range(5):
fig = plt.figure()
ax = fig.add_subplot(1, 1, 1)
ax.plot(x, y)
plt.close(fig)
print(plt.get_fignums())
for i in range(5):
fig = plt.figure()
ax = fig.add_subplot(1, 1, 1)
ax.plot(x, y)
fig.clf()
print(plt.get_fignums())
If memory is a concern somebody already posted a work-around in SO see: Create a figure that is reference counted
I found this to be the simplest way.
>>> t = datetime.datetime.now()
>>> t
datetime.datetime(2018, 11, 30, 17, 21, 26, 606191)
>>> t = str(t).split('.')
>>> t
['2018-11-30 17:21:26', '606191']
>>> t = t[0]
>>> t
'2018-11-30 17:21:26'
>>>
You can use the >> operator. This will append data from a command to the end of a text file.
To test this try running:
echo "Hi this is a test" >> textfile.txt
Do this a couple of times and then run:
cat textfile.txt
You'll see your text has been appended several times to the textfile.txt file.
localStorage
is something that is kept on the client side. There is no data transmitted to the server side.
You can only get the data with JavaScript and you can send it to the server side with Ajax.
As for security issues, here is what a security consultant will tell you on the whole field issue (this is from an actual independent security audit):
HTML Autocomplete Enabled – Password fields in HTML forms have autocomplete enabled. Most browsers have a facility to remember user credentials entered into HTML forms.
Relative Risk: Low
Affected Systems/Devices: o https://*******/
I also agree this should cover any field that contains truly private data. I feel that it is alright to force a person to always type their credit card information, CVC code, passwords, usernames, etc whenever that site is going to access anything that should be kept secure [universally or by legal compliance requirements]. For example: purchase forms, bank/credit sites, tax sites, medical data, federal, nuclear, etc - not Sites like Stack Overflow or Facebook.
Other types of sites - e.g. TimeStar Online for clocking in and out of work - it's stupid, since I always use the same PC/account at work, that I can't save the credentials on that site - strangely enough I can on my Android but not on an iPad. Even shared PCs this wouldn't be too bad since clocking in/out for someone else really doesn't do anything but annoy your supervisor. (They have to go in and delete the erroneous punches - just choose not to save on public PCs).
I know, I am late but here is the correct way of doing it. using base64. This technique will convert the array to string.
import base64
import numpy as np
random_array = np.random.randn(32,32)
string_repr = base64.binascii.b2a_base64(random_array).decode("ascii")
array = np.frombuffer(base64.binascii.a2b_base64(string_repr.encode("ascii")))
For array to string
Convert binary data to a line of ASCII characters in base64 coding and decode to ASCII to get string repr.
For string to array
First, encode the string in ASCII format then Convert a block of base64 data back to binary and return the binary data.
You are just comparing strings.
Put the values in ArrayList A as keys in HashTable A.
Put the values in ArrayList B as keys in HashTable B.
Then, for each key in HashTable A, remove it from HashTable B if it exists.
What you are left with in HashTable B are the strings (keys) that were not values in ArrayList A.
C# (3.0) example added in response to request for code:
List<string> listA = new List<string>{"2009-05-18","2009-05-19","2009-05-21'"};
List<string> listB = new List<string>{"2009-05-18","2009-05-18","2009-05-19","2009-05-19","2009-05-20","2009-05-21","2009-05-21","2009-05-22"};
HashSet<string> hashA = new HashSet<string>();
HashSet<string> hashB = new HashSet<string>();
foreach (string dateStrA in listA) hashA.Add(dateStrA);
foreach (string dateStrB in listB) hashB.Add(dateStrB);
foreach (string dateStrA in hashA)
{
if (hashB.Contains(dateStrA)) hashB.Remove(dateStrA);
}
List<string> result = hashB.ToList<string>();
0755
= User:rwx
Group:r-x
World:r-x
0750
= User:rwx
Group:r-x
World:---
(i.e. World: no access)
r = read
w = write
x = execute (traverse for directories)
I had this issue with a WinForms Project using VS 2015. My solution was:
To find out if a string contains substring you can use the index
function:
if (index($str, $substr) != -1) {
print "$str contains $substr\n";
}
It will return the position of the first occurrence of $substr
in $str
, or -1 if the substring is not found.
You have found the root cause. Alternately do like this:
ser.write(bytes(b'your_commands'))
$( this ).attr( 'checked', 'checked' )
just attr( 'checked' )
will return the value of $( this )'s checked attribute. To set it, you need that second argument. Based on <input type="checkbox" checked="checked" />
Edit:
Based on comments, a more appropriate manipulation would be:
$( this ).attr( 'checked', true )
And a straight javascript method, more appropriate and efficient:
this.checked = true;
Thanks @Andy E for that.
My site is hosted on MochaHost, i had a tough time to setup the .htaccess file so that i can remove the index.php from my urls. However, after some googling, i combined the answer on this thread and other answers. My final working .htaccess file has the following contents:
<IfModule mod_rewrite.c>
# Turn on URL rewriting
RewriteEngine On
# If your website begins from a folder e.g localhost/my_project then
# you have to change it to: RewriteBase /my_project/
# If your site begins from the root e.g. example.local/ then
# let it as it is
RewriteBase /
# Protect application and system files from being viewed when the index.php is missing
RewriteCond $1 ^(application|system|private|logs)
# Rewrite to index.php/access_denied/URL
RewriteRule ^(.*)$ index.php/access_denied/$1 [PT,L]
# Allow these directories and files to be displayed directly:
RewriteCond $1 ^(index\.php|robots\.txt|favicon\.ico|public|app_upload|assets|css|js|images)
# No rewriting
RewriteRule ^(.*)$ - [PT,L]
# Rewrite to index.php/URL
RewriteRule ^(.*)$ index.php?/$1 [PT,L]
</IfModule>
However, I disagree the official definition of Guide to naming conventions on groupId, artifactId, and version which proposes the groupId must start with a reversed domain name you control.
com
means this project belongs to a company, and org
means this project belongs to a social organization. These are alright, but for those strange domain like xxx.tv, xxx.uk, xxx.cn, it does not make sense to name the groupId started with "tv.","cn.", the groupId should deliver the basic information of the project rather than the domain.
$sheet->getStyle('A1')->applyFromArray(
array(
'fill' => array(
'type' => PHPExcel_Style_Fill::FILL_SOLID,
'color' => array('rgb' => 'FF0000')
)
)
);
Source: http://bayu.freelancer.web.id/2010/07/16/phpexcel-advanced-read-write-excel-made-simple/
There are a few steps you need to take to properly store this information in your localStorage. Before we get down to the code however, please note that localStorage (at the current time) cannot hold any data type except for strings. You will need to serialize the array for storage and then parse it back out to make modifications to it.
Step 1:
The First code snippet below should only be run if you are not already storing a serialized array in your localStorage session
variable.
To ensure your localStorage is setup properly and storing an array, run the following code snippet first:
var a = [];
a.push(JSON.parse(localStorage.getItem('session')));
localStorage.setItem('session', JSON.stringify(a));
The above code should only be run once and only if you are not already storing an array in your localStorage session
variable. If you are already doing this skip to step 2.
Step 2:
Modify your function like so:
function SaveDataToLocalStorage(data)
{
var a = [];
// Parse the serialized data back into an aray of objects
a = JSON.parse(localStorage.getItem('session')) || [];
// Push the new data (whether it be an object or anything else) onto the array
a.push(data);
// Alert the array value
alert(a); // Should be something like [Object array]
// Re-serialize the array back into a string and store it in localStorage
localStorage.setItem('session', JSON.stringify(a));
}
This should take care of the rest for you. When you parse it out, it will become an array of objects.
Hope this helps.
If you use Oracle 10 or higher you can use regexp functions as codaddict suggested. In earlier versions translate
function will help you:
select * from tablename where translate(x, '.1234567890', '.') is null;
More info about Oracle translate function can be found here or in official documentation "SQL Reference"
UPD: If you have signs or spaces in your numbers you can add "+-
" characters to the second parameter of translate
function.
From the documentation for strtotime()
:
Dates in the m/d/y or d-m-y formats are disambiguated by looking at the separator between the various components: if the separator is a slash (/), then the American m/d/y is assumed; whereas if the separator is a dash (-) or a dot (.), then the European d-m-y format is assumed.
In your date string, you have 12-16-2013
. 16
isn't a valid month, and hence strtotime()
returns false
.
Since you can't use DateTime class, you could manually replace the -
with /
using str_replace()
to convert the date string into a format that strtotime()
understands:
$date = '2-16-2013';
echo date('Y-m-d', strtotime(str_replace('-','/', $date))); // => 2013-02-16
This answer is directed in large part at a comment made by @RafalDowgird:
"The minimum size of operations is int." - This would be very strange (what about architectures that efficiently support char/short operations?) Is this really in the C++ spec?
Keep in mind that the C++ standard has the all-important "as-if" rule. See section 1.8: Program Execution:
3) This provision is sometimes called the "as-if" rule, because an implementation is free to disregard any requirement of the Standard as long as the result is as if the requirement had been obeyed, as far as can be determined from the observable behavior of the program.
The compiler cannot set an int
to be 8 bits in size, even if it were the fastest, since the standard mandates a 16-bit minimum int
.
Therefore, in the case of a theoretical computer with super-fast 8-bit operations, the implicit promotion to int
for arithmetic could matter. However, for many operations, you cannot tell if the compiler actually did the operations in the precision of an int
and then converted to a char
to store in your variable, or if the operations were done in char all along.
For example, consider unsigned char = unsigned char + unsigned char + unsigned char
, where addition would overflow (let's assume a value of 200 for each). If you promoted to int
, you would get 600, which would then be implicitly down cast into an unsigned char
, which would wrap modulo 256, thus giving a final result of 88. If you did no such promotions,you'd have to wrap between the first two additions, which would reduce the problem from 200 + 200 + 200
to 144 + 200
, which is 344, which reduces to 88. In other words, the program does not know the difference, so the compiler is free to ignore the mandate to perform intermediate operations in int
if the operands have a lower ranking than int
.
This is true in general of addition, subtraction, and multiplication. It is not true in general for division or modulus.
A lot of the times the implementation will exist in the same namespace as the interface. So, I came up with this:
public class InterfaceConverter : JsonConverter
{
public override bool CanWrite => false;
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
var token = JToken.ReadFrom(reader);
var typeVariable = this.GetTypeVariable(token);
if (TypeExtensions.TryParse(typeVariable, out var implimentation))
{ }
else if (!typeof(IEnumerable).IsAssignableFrom(objectType))
{
implimentation = this.GetImplimentedType(objectType);
}
else
{
var genericArgumentTypes = objectType.GetGenericArguments();
var innerType = genericArgumentTypes.FirstOrDefault();
if (innerType == null)
{
implimentation = typeof(IEnumerable);
}
else
{
Type genericType = null;
if (token.HasAny())
{
var firstItem = token[0];
var genericTypeVariable = this.GetTypeVariable(firstItem);
TypeExtensions.TryParse(genericTypeVariable, out genericType);
}
genericType = genericType ?? this.GetImplimentedType(innerType);
implimentation = typeof(IEnumerable<>);
implimentation = implimentation.MakeGenericType(genericType);
}
}
return JsonConvert.DeserializeObject(token.ToString(), implimentation);
}
public override bool CanConvert(Type objectType)
{
return !typeof(IEnumerable).IsAssignableFrom(objectType) && objectType.IsInterface || typeof(IEnumerable).IsAssignableFrom(objectType) && objectType.GetGenericArguments().Any(t => t.IsInterface);
}
protected Type GetImplimentedType(Type interfaceType)
{
if (!interfaceType.IsInterface)
{
return interfaceType;
}
var implimentationQualifiedName = interfaceType.AssemblyQualifiedName?.Replace(interfaceType.Name, interfaceType.Name.Substring(1));
return implimentationQualifiedName == null ? interfaceType : Type.GetType(implimentationQualifiedName) ?? interfaceType;
}
protected string GetTypeVariable(JToken token)
{
if (!token.HasAny())
{
return null;
}
return token.Type != JTokenType.Object ? null : token.Value<string>("$type");
}
}
Therefore, you can include this globally like so:
public static JsonSerializerSettings StandardSerializerSettings => new JsonSerializerSettings
{
Converters = new List<JsonConverter>
{
new InterfaceConverter()
}
};
It is very inefficient to store all values in memory, so the objects are reused and loaded one at a time. See this other SO question for a good explanation. Summary:
[...] when looping through the
Iterable
value list, each Object instance is re-used, so it only keeps one instance around at a given time.
In my case eclipse was using an old settings.xml file.
You need a parameterless constructor to be able to create an instance of your class. Your current constructor requires two input string parameters.
Normally C++ implies having such a constructor (=default parameterless constructor) if there is no other constructor declared. By declaring your first constructor with two parameters you overwrite this default behaviour and now you have to declare this constructor explicitly.
Here is the working code:
#include <iostream>
#include <string> // <-- you need this if you want to use string type
using namespace std;
class name {
public:
string first;
string last;
name(string a, string b){
first = a;
last = b;
}
name () // <-- this is your explicit parameterless constructor
{}
};
int main (int argc, const char * argv[])
{
const int howManyNames = 3;
name someName[howManyNames];
return 0;
}
(BTW, you need to include to make the code compilable.)
An alternative way is to initialize your instances explicitly on declaration
name someName[howManyNames] = { {"Ivan", "The Terrible"}, {"Catherine", "The Great"} };
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self
action:@selector(aMethod:)
forControlEvents:UIControlEventTouchUpInside];
[button setTitle:@"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(10.0, 100.0, 300.0, 20.0);
[self.view addSubview:button];
i'll go with:-
$("select#my-select option") .each(function() { this.selected = (this.text == myVal); });
We have 1 MB - 3 KB RAM = 2^23 - 3*2^13 bits = 8388608 - 24576 = 8364032 bits available.
We are given 10^6 numbers in a 10^8 range. This gives an average gap of ~100 < 2^7 = 128
Let's first consider the simpler problem of fairly evenly spaced numbers when all gaps are < 128. This is easy. Just store the first number and the 7-bit gaps:
(27 bits) + 10^6 7-bit gap numbers = 7000027 bits required
Note repeated numbers have gaps of 0.
But what if we have gaps larger than 127?
OK, let's say a gap size < 127 is represented directly, but a gap size of 127 is followed by a continuous 8-bit encoding for the actual gap length:
10xxxxxx xxxxxxxx = 127 .. 16,383
110xxxxx xxxxxxxx xxxxxxxx = 16384 .. 2,097,151
etc.
Note this number representation describes its own length so we know when the next gap number starts.
With just small gaps < 127, this still requires 7000027 bits.
There can be up to (10^8)/(2^7) = 781250 23-bit gap number, requiring an extra 16*781,250 = 12,500,000 bits which is too much. We need a more compact and slowly increasing representation of gaps.
The average gap size is 100 so if we reorder them as [100, 99, 101, 98, 102, ..., 2, 198, 1, 199, 0, 200, 201, 202, ...] and index this with a dense binary Fibonacci base encoding with no pairs of zeros (for example, 11011=8+5+2+1=16) with numbers delimited by '00' then I think we can keep the gap representation short enough, but it needs more analysis.
See X-Frame-Options header on error response
You can simply add following line to .htaccess
Header always unset X-Frame-Options
PHP (typically) generates HTML output for a web-site.
When displaying HTML, the browser (typically) collapses all whitespace in text into a single space. Sometimes, between tags, it even collapses whitespace to nothing.
In order to persuade the browser to display whitespace, you need to include special tags like
or <br/>
in your HTML to add non-breaking whitespace or new lines, respectively.
Try:
SELECT convert(nvarchar(10), SA.[RequestStartDate], 103) as 'Service Start Date',
convert(nvarchar(10), SA.[RequestEndDate], 103) as 'Service End Date',
FROM
(......)SA
WHERE......
Or:
SELECT format(SA.[RequestStartDate], 'dd/MM/yyyy') as 'Service Start Date',
format(SA.[RequestEndDate], 'dd/MM/yyyy') as 'Service End Date',
FROM
(......)SA
WHERE......
I can't comment yet, but I think sj26 answer should be the top answer. Just a hint:
Rails.application.eager_load! unless Rails.configuration.cache_classes
ActiveRecord::Base.descendants
It works perfectly fine .
public static function folderSize($dir)
{
$size = 0;
foreach (glob(rtrim($dir, '/') . '/*', GLOB_NOSORT) as $each) {
$func_name = __FUNCTION__;
$size += is_file($each) ? filesize($each) : static::$func_name($each);
}
return $size;
}
The question is slightly ambiguous, since None
can translate into either undefined
or null
. null
is a better choice:
var a = [], b;
var i, j;
for (i = 0; i < 9; i++) {
for (j = 0, b = []; j < 9; j++) {
b.push(null);
}
a.push(b);
}
If undefined
, you can be sloppy and just don't bother, everything is undefined
anyway. :)
Installig Eclispe ADT from market place solved this problem for me.
exitcode = data.wait()
. The child process will be blocked If it writes to standard output/error, and/or reads from standard input, and there are no peers.
It just means that the server cannot find your image.
Remember The image path must be relative to the CSS file location
Check the path and if the image file exist.
I really liked Lyth's answer, but also really wanted it to:
I adapted his JSFiddle and came up with this. One improvement not present in this fiddle would be to use something like the jQuery CSS Parser to actually read the initial width from the input.textbox-autosize rule, and use that as the minWidth. Right I'm simply using an attribute on the , which makes for a compact demo but is not ideal. as it requires an extra attribute on each input. You might also just want to put the minWidth as 100 right in the JavaScript.
HTML:
<div id='applicationHost'>
<div>Name: <input class='textbox-autosize' data-min-width='100' type="text" /></div>
<div>Email: <input class='textbox-autosize' data-min-width='100' type="email" /></div>
<div>Points: <input class='textbox-autosize' data-min-width='100' type="number" /></div>
</div>
CSS:
#applicationHost {
font-family: courier;
white-space: pre;
}
input.textbox-autosize, span.invisible-autosize-helper {
padding:0;
font-size:12px;
font-family:Sans-serif;
white-space:pre;
}
input.textbox-autosize {
width: 100px; /* Initial width of textboxes */
}
/*
In order for the measurements to work out, your input and the invisible
span need to have the same styling.
*/
JavaScript:
$('#applicationHost').on('keyup', '.textbox-autosize', function(e) {
// Add an arbitary buffer of 15 pixels.
var whitespaceBuffer = 15;
var je = $(this);
var minWidth = parseInt(je.attr('data-min-width'));
var newVal = je.val();
var sizingSpanClass = 'invisible-autosize-helper';
var $span = je.siblings('span.' + sizingSpanClass).first();
// If this element hasn't been created yet, we'll create it now.
if ($span.length === 0) {
$span = $('<span/>', {
'class': sizingSpanClass,
'style': 'display: none;'
});
je.parent().append($span);
}
$span = je.siblings('span').first();
$span.text(newVal) ; // the hidden span takes
// the value of the input
$inputSize = $span.width();
$inputSize += whitespaceBuffer;
if($inputSize > minWidth)
je.css("width", $inputSize) ; // apply width of the span to the input
else
je.css("width", minWidth) ; // Ensure we're at the min width
});
If you guys are facing "Permission Denial: starting Intent..." error or if the app is getting crash without any reason during launching the app - Then use this single line code in Manifest
android:exported="true"
Please be careful with finish(); , if you missed out it the app getting frozen. if its mentioned the app would be a smooth launcher.
finish();
The other solution only works for two activities that are in the same application. In my case, application B doesn't know class com.example.MyExampleActivity.class
in the code, so compile will fail.
I searched on the web and found something like this below, and it works well.
Intent intent = new Intent();
intent.setComponent(new ComponentName("com.example", "com.example.MyExampleActivity"));
startActivity(intent);
You can also use the setClassName method:
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setClassName("com.hotfoot.rapid.adani.wheeler.android", "com.hotfoot.rapid.adani.wheeler.android.view.activities.MainActivity");
startActivity(intent);
finish();
You can also pass the values from one app to another app :
Intent launchIntent = getApplicationContext().getPackageManager().getLaunchIntentForPackage("com.hotfoot.rapid.adani.wheeler.android.LoginActivity");
if (launchIntent != null) {
launchIntent.putExtra("AppID", "MY-CHILD-APP1");
launchIntent.putExtra("UserID", "MY-APP");
launchIntent.putExtra("Password", "MY-PASSWORD");
startActivity(launchIntent);
finish();
} else {
Toast.makeText(getApplicationContext(), " launch Intent not available", Toast.LENGTH_SHORT).show();
}
If the data is actually a factor
then you can use the levels()
function, e.g.
levels( data$product_code )
If it's not a factor, but it should be, you can convert it to factor first by using the factor()
function, e.g.
levels( factor( data$product_code ) )
Another option, as mentioned above, is the unique()
function:
unique( data$product_code )
The main difference between the two (when applied to a factor
) is that levels
will return a character vector in the order of levels, including any levels that are coded but do not occur. unique
will return a factor
in the order the values first appear, with any non-occurring levels omitted (though still included in levels
of the returned factor).
In just a few words...
SAX (Simple API for XML): Is a stream-based processor. You only have a tiny part in memory at any time and you "sniff" the XML stream by implementing callback code for events like tagStarted()
etc. It uses almost no memory, but you can't do "DOM" stuff, like use xpath or traverse trees.
DOM (Document Object Model): You load the whole thing into memory - it's a massive memory hog. You can blow memory with even medium sized documents. But you can use xpath and traverse the tree etc.
SELECT
category,
COUNT(*) AS `num`
FROM
posts
GROUP BY
category
You can specify a time zone offset on new Date()
, for example:
new Date('Feb 28 2013 19:00:00 EST')
or
new Date('Feb 28 2013 19:00:00 GMT-0500')
Since Date
store UTC time ( i.e. getTime
returns in UTC ), javascript will them convert the time into UTC, and when you call things like toString
javascript will convert the UTC time into browser's local timezone and return the string in local timezone, i.e. If I'm using UTC+8
:
> new Date('Feb 28 2013 19:00:00 GMT-0500').toString()
< "Fri Mar 01 2013 08:00:00 GMT+0800 (CST)"
Also you can use normal getHours/Minute/Second
method:
> new Date('Feb 28 2013 19:00:00 GMT-0500').getHours()
< 8
( This 8
means after the time is converted into my local time - UTC+8
, the hours number is 8
. )
Go to Build Gradle (Module:app) Change the following. In my case, I choose 25.0.3
android {
compileSdkVersion 25
buildToolsVersion "25.0.3"
defaultConfig {
applicationId "com.example.cesarhcq.viisolutions"
minSdkVersion 15
targetSdkVersion 25
After that, it works fine!
Although I am commenting late. But I have used this method to do the job. Here when I am running my spring application I am providing the application yaml file via -Dspring.config.location=file:/location-to-file/config-server-vault-application.yml
which contains all of my properties
config-server-vault-application.yml
***********************************
server:
port: 8888
ssl:
trust-store: /trust-store/config-server-trust-store.jks
trust-store-password: config-server
trust-store-type: pkcs12
************************************
Java Code
************************************
@SpringBootApplication
public class ConfigServerApplication {
public static void main(String[] args) throws IOException {
setUpTrustStoreForApplication();
SpringApplication.run(ConfigServerApplication.class, args);
}
private static void setUpTrustStoreForApplication() throws IOException {
YamlPropertySourceLoader loader = new YamlPropertySourceLoader();
List<PropertySource<?>> applicationYamlPropertySource = loader.load(
"config-application-properties", new UrlResource(System.getProperty("spring.config.location")));
Map<String, Object> source = ((MapPropertySource) applicationYamlPropertySource.get(0)).getSource();
System.setProperty("javax.net.ssl.trustStore", source.get("server.ssl.trust-store").toString());
System.setProperty("javax.net.ssl.trustStorePassword", source.get("server.ssl.trust-store-password").toString());
}
}
I fixed it by changing the quotation mark (") with apostrophe (') inside Values. For instance:
insert into trucks ("id","datetime") VALUES (862,"10-09-2002 09:15:59");
Becomes this:
insert into trucks ("id","datetime") VALUES (862,'10-09-2002 09:15:59');
Assuming datetime
column is VarChar.
Answers that suggest that the header provided in the question are supported out of the box by WCF are incorrect. The header in the question contains a Nonce and a Created timestamp in the UsernameToken, which is an official part of the WS-Security specification that WCF does not support. WCF only supports username and password out of the box.
If all you need to do is add a username and password, then Sergey's answer is the least-effort approach. If you need to add any other fields, you will need to supply custom classes to support them.
A somewhat more elegant approach that I found was to override the ClientCredentials, ClientCredentialsSecurityTokenManager and WSSecurityTokenizer classes to support the additional properties. I've provided a link to the blog post where the approach is discussed in detail, but here is the sample code for the overrides:
public class CustomCredentials : ClientCredentials
{
public CustomCredentials()
{ }
protected CustomCredentials(CustomCredentials cc)
: base(cc)
{ }
public override System.IdentityModel.Selectors.SecurityTokenManager CreateSecurityTokenManager()
{
return new CustomSecurityTokenManager(this);
}
protected override ClientCredentials CloneCore()
{
return new CustomCredentials(this);
}
}
public class CustomSecurityTokenManager : ClientCredentialsSecurityTokenManager
{
public CustomSecurityTokenManager(CustomCredentials cred)
: base(cred)
{ }
public override System.IdentityModel.Selectors.SecurityTokenSerializer CreateSecurityTokenSerializer(System.IdentityModel.Selectors.SecurityTokenVersion version)
{
return new CustomTokenSerializer(System.ServiceModel.Security.SecurityVersion.WSSecurity11);
}
}
public class CustomTokenSerializer : WSSecurityTokenSerializer
{
public CustomTokenSerializer(SecurityVersion sv)
: base(sv)
{ }
protected override void WriteTokenCore(System.Xml.XmlWriter writer,
System.IdentityModel.Tokens.SecurityToken token)
{
UserNameSecurityToken userToken = token as UserNameSecurityToken;
string tokennamespace = "o";
DateTime created = DateTime.Now;
string createdStr = created.ToString("yyyy-MM-ddTHH:mm:ss.fffZ");
// unique Nonce value - encode with SHA-1 for 'randomness'
// in theory the nonce could just be the GUID by itself
string phrase = Guid.NewGuid().ToString();
var nonce = GetSHA1String(phrase);
// in this case password is plain text
// for digest mode password needs to be encoded as:
// PasswordAsDigest = Base64(SHA-1(Nonce + Created + Password))
// and profile needs to change to
//string password = GetSHA1String(nonce + createdStr + userToken.Password);
string password = userToken.Password;
writer.WriteRaw(string.Format(
"<{0}:UsernameToken u:Id=\"" + token.Id +
"\" xmlns:u=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd\">" +
"<{0}:Username>" + userToken.UserName + "</{0}:Username>" +
"<{0}:Password Type=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText\">" +
password + "</{0}:Password>" +
"<{0}:Nonce EncodingType=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary\">" +
nonce + "</{0}:Nonce>" +
"<u:Created>" + createdStr + "</u:Created></{0}:UsernameToken>", tokennamespace));
}
protected string GetSHA1String(string phrase)
{
SHA1CryptoServiceProvider sha1Hasher = new SHA1CryptoServiceProvider();
byte[] hashedDataBytes = sha1Hasher.ComputeHash(Encoding.UTF8.GetBytes(phrase));
return Convert.ToBase64String(hashedDataBytes);
}
}
Before creating the client, you create the custom binding and manually add the security, encoding and transport elements to it. Then, replace the default ClientCredentials with your custom implementation and set the username and password as you would normally:
var security = TransportSecurityBindingElement.CreateUserNameOverTransportBindingElement();
security.IncludeTimestamp = false;
security.DefaultAlgorithmSuite = SecurityAlgorithmSuite.Basic256;
security.MessageSecurityVersion = MessageSecurityVersion.WSSecurity10WSTrustFebruary2005WSSecureConversationFebruary2005WSSecurityPolicy11BasicSecurityProfile10;
var encoding = new TextMessageEncodingBindingElement();
encoding.MessageVersion = MessageVersion.Soap11;
var transport = new HttpsTransportBindingElement();
transport.MaxReceivedMessageSize = 20000000; // 20 megs
binding.Elements.Add(security);
binding.Elements.Add(encoding);
binding.Elements.Add(transport);
RealTimeOnlineClient client = new RealTimeOnlineClient(binding,
new EndpointAddress(url));
client.ChannelFactory.Endpoint.EndpointBehaviors.Remove(client.ClientCredentials);
client.ChannelFactory.Endpoint.EndpointBehaviors.Add(new CustomCredentials());
client.ClientCredentials.UserName.UserName = username;
client.ClientCredentials.UserName.Password = password;
You can use the bootstrap grid system. as Yoann said
<div class="container">
<div class="row">
<form role="form">
<div class="form-group col-xs-10 col-sm-4 col-md-4 col-lg-4">
<label for="exampleInputEmail1">Email address</label>
<input type="email" class="form-control" id="exampleInputEmail1" placeholder="Enter email">
</div>
<div class="form-group col-xs-10 col-sm-4 col-md-4 col-lg-4">
<label for="exampleInputEmail1">Name</label>
<input type="text" class="form-control" id="exampleInputEmail1" placeholder="Enter Name">
</div>
<div class="clearfix"></div>
<div class="form-group col-xs-10 col-sm-4 col-md-4 col-lg-4">
<label for="exampleInputPassword1">Password</label>
<input type="password" class="form-control" id="exampleInputPassword1" placeholder="Password">
</div>
<div class="form-group col-xs-10 col-sm-4 col-md-4 col-lg-4">
<label for="exampleInputPassword1">Confirm Password</label>
<input type="password" class="form-control" id="exampleInputPassword1" placeholder="Confirm Password">
</div>
</form>
<div class="clearfix">
</div>
</div>
</div>
The accepted answer is correct, but there is a more clever/efficient way to do this if you need to convert a whole bunch of ASCII characters to their ASCII codes at once. Instead of doing:
for ch in mystr:
code = ord(ch)
or the slightly faster:
for code in map(ord, mystr):
you convert to Python native types that iterate the codes directly. On Python 3, it's trivial:
for code in mystr.encode('ascii'):
and on Python 2.6/2.7, it's only slightly more involved because it doesn't have a Py3 style bytes
object (bytes
is an alias for str
, which iterates by character), but they do have bytearray
:
# If mystr is definitely str, not unicode
for code in bytearray(mystr):
# If mystr could be either str or unicode
for code in bytearray(mystr, 'ascii'):
Encoding as a type that natively iterates by ordinal means the conversion goes much faster; in local tests on both Py2.7 and Py3.5, iterating a str
to get its ASCII codes using map(ord, mystr)
starts off taking about twice as long for a len
10 str
than using bytearray(mystr)
on Py2 or mystr.encode('ascii')
on Py3, and as the str
gets longer, the multiplier paid for map(ord, mystr)
rises to ~6.5x-7x.
The only downside is that the conversion is all at once, so your first result might take a little longer, and a truly enormous str
would have a proportionately large temporary bytes
/bytearray
, but unless this forces you into page thrashing, this isn't likely to matter.
I have an answer:
<a href="#">
<div class="widget">
<div class="title" style="text-decoration: none;">Underlined. Why?</div>
</div>
</a>?
It works.
I had the same issue but none of the above worked for mine. either there was a backstack problem (after loading when user pressed back it would to go the same fragment again) or it didnt call the onCreaetView
finally i did this:
public void transactFragment(Fragment fragment, boolean reload) {
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
if (reload) {
getSupportFragmentManager().popBackStack();
}
transaction.replace(R.id.main_activity_frame_layout, fragment);
transaction.addToBackStack(null);
transaction.commit();
}
good point is you dont need the tag or id of the fragment either. if you want to reload
The only thing which worked for me is this
fetchData()
.subscribe(
(data) => {
//Called when success
},
(error) => {
//Called when error
}
).add(() => {
//Called when operation is complete (both success and error)
});
I didn't wanna stop using var_dump($variable);die();
and using pre
tags and loops seems overkill to me, so since I am looking at the dump in a browser, I just right click the page and choose Inspect (I use Chrome). The Elements section of the Developer Tools show the variable in a very readable format.
Do you have _timestamp enabled in your doc mapping?
{
"doctype": {
"_timestamp": {
"enabled": "true",
"store": "yes"
},
"properties": {
...
}
}
}
You can check your mapping here:
http://localhost:9200/_all/_mapping
If so I think this might work to get most recent:
{
"query": {
"match_all": {}
},
"size": 1,
"sort": [
{
"_timestamp": {
"order": "desc"
}
}
]
}
I would personally prefer using "\n". This just puts a line break in Linux or Android.
For example,
String str = "I am the first part of the info being emailed.\nI am the second part.\n\nI am the third part.";
Output
I am the first part of the info being emailed.
I am the second part.
I am the third part.
A more generalized way would be to use,
System.getProperty("line.separator")
For example,
String str = "I am the first part of the info being emailed." + System.getProperty("line.separator") + "I am the second part." + System.getProperty("line.separator") + System.getProperty("line.separator") + "I am the third part.";
brings the same output as above. Here, the static getProperty()
method of the System
class can be used to get the "line.seperator
" for the particular OS.
But this is not necessary at all, as the OS here is fixed, that is, Android. So, calling a method every time is a heavy and unnecessary operation.
Moreover, this also increases your code length and makes it look kind of messy. A "\n" is sweet and simple.
Assuming the thread code is out of your control:
From the Java documentation mentioned above:
What if a thread doesn't respond to Thread.interrupt?
In some cases, you can use application specific tricks. For example, if a thread is waiting on a known socket, you can close the socket to cause the thread to return immediately. Unfortunately, there really isn't any technique that works in general. It should be noted that in all situations where a waiting thread doesn't respond to Thread.interrupt, it wouldn't respond to Thread.stop either. Such cases include deliberate denial-of-service attacks, and I/O operations for which thread.stop and thread.interrupt do not work properly.
Bottom Line:
Make sure all threads can be interrupted, or else you need specific knowledge of the thread - like having a flag to set. Maybe you can require that the task be given to you along with the code needed to stop it - define an interface with a stop()
method. You can also warn when you failed to stop a task.