Another solution:
import collections
def defaultargs(func, defaults):
def wrapper(*args, **kwargs):
for key, value in (x for x in defaults[len(args):] if len(x) == 2):
kwargs.setdefault(key, value)
return func(*args, **kwargs)
return wrapper
def namedtuple(name, fields):
NamedTuple = collections.namedtuple(name, [x[0] for x in fields])
NamedTuple.__new__ = defaultargs(NamedTuple.__new__, [(NamedTuple,)] + fields)
return NamedTuple
Usage:
>>> Node = namedtuple('Node', [
... ('val',),
... ('left', None),
... ('right', None),
... ])
__main__.Node
>>> Node(1)
Node(val=1, left=None, right=None)
>>> Node(1, 2, right=3)
Node(val=1, left=2, right=3)
namedtuples are a great feature, they are perfect container for data. When you have to "store" data you would use tuples or dictionaries, like:
user = dict(name="John", age=20)
or:
user = ("John", 20)
The dictionary approach is overwhelming, since dict are mutable and slower than tuples. On the other hand, the tuples are immutable and lightweight but lack readability for a great number of entries in the data fields.
namedtuples are the perfect compromise for the two approaches, the have great readability, lightweightness and immutability (plus they are polymorphic!).
Why do you want to use multiple [ng-app] ? Since Angular is resumed by using modules, you can use an app that use multiple dependencies.
Javascript:
// setter syntax -> initializing other module for demonstration
angular.module('otherModule', []);
angular.module('app', ['otherModule'])
.controller('AppController', function () {
// ...do something
});
// getter syntax
angular.module('otherModule')
.controller('OtherController', function () {
// ...do something
});
HTML:
<div ng-app="app">
<div ng-controller="AppController">...</div>
<div ng-controller="OtherController">...</div>
</div>
EDIT
Keep in mind that if you want to use controller inside controller you have to use the controllerAs syntax, like so:
<div ng-app="app">
<div ng-controller="AppController as app">
<div ng-controller="OtherController as other">...</div>
</div>
</div>
On Mac Os High Sierra, I installed jupyter with
python3 -m pip install jupyter
And then, binary were installed in:
/Library/Frameworks/Python.framework/Versions/3.6/bin/jupyter-notebook
I had a similar issue where I was creating a numeric color without considering the leading alpha channel. ie. mytext.setTextColor(0xFF0000)
(thinking this would be red ). While this is a red color it is also 100% transparent as it = 0x00FF0000;
The correct 100% opaque value is 0xFFFF0000
or mytext.setTextcolor(0xFFFF0000)
.
If you have an existing class that you'd like to use, perform Step 2 and then skip to Step 5. (For some cases, I had to add an explicit
#import <Foundation/Foundation.h
to an older Objective-C File.)
Add a .m
file to your class, and name it CustomObject.m
.
When adding your .m
file, you'll likely be hit with a prompt that looks like this:
Click Yes!
If you did not see the prompt, or accidentally deleted your bridging header, add a new .h
file to your project and name it <#YourProjectName#>-Bridging-Header.h
.
In some situations, particularly when working with Objective-C frameworks, you don't add an Objective-C class explicitly and Xcode can't find the linker. In this case, create your .h
file named as mentioned above, then make sure you link its path in your target's project settings like so:
Note:
It's best practice to link your project using the $(SRCROOT)
macro so that if you move your project, or work on it with others using a remote repository, it will still work. $(SRCROOT)
can be thought of as the directory that contains your .xcodeproj file. It might look like this:
$(SRCROOT)/Folder/Folder/<#YourProjectName#>-Bridging-Header.h
Add another .h
file and name it CustomObject.h
.
In CustomObject.h
#import <Foundation/Foundation.h>
@interface CustomObject : NSObject
@property (strong, nonatomic) id someProperty;
- (void) someMethod;
@end
In CustomObject.m
#import "CustomObject.h"
@implementation CustomObject
- (void) someMethod {
NSLog(@"SomeMethod Ran");
}
@end
In YourProject-Bridging-Header.h
:
#import "CustomObject.h"
In SomeSwiftFile.swift
:
var instanceOfCustomObject = CustomObject()
instanceOfCustomObject.someProperty = "Hello World"
print(instanceOfCustomObject.someProperty)
instanceOfCustomObject.someMethod()
There is no need to import explicitly; that's what the bridging header is for.
Add a .swift
file to your project, and name it MySwiftObject.swift
.
In MySwiftObject.swift
:
import Foundation
@objc(MySwiftObject)
class MySwiftObject : NSObject {
@objc
var someProperty: AnyObject = "Some Initializer Val" as NSString
init() {}
@objc
func someFunction(someArg: Any) -> NSString {
return "You sent me \(someArg)"
}
}
In SomeRandomClass.m
:
#import "<#YourProjectName#>-Swift.h"
The file:<#YourProjectName#>-Swift.h
should already be created automatically in your project, even if you can not see it.
MySwiftObject * myOb = [MySwiftObject new];
NSLog(@"MyOb.someProperty: %@", myOb.someProperty);
myOb.someProperty = @"Hello World";
NSLog(@"MyOb.someProperty: %@", myOb.someProperty);
NSString * retString = [myOb someFunctionWithSomeArg:@"Arg"];
NSLog(@"RetString: %@", retString);
If Code Completion isn't behaving as you expect, try running a quick build with ??R to help Xcode find some of the Objective-C code from a Swift context and vice versa.
If you add a .swift
file to an older project and get the error dyld: Library not loaded: @rpath/libswift_stdlib_core.dylib
, try completely restarting Xcode.
While it was originally possible to use pure Swift classes (Not descendents of NSObject
) which are visible to Objective-C by using the @objc
prefix, this is no longer possible. Now, to be visible in Objective-C, the Swift object must either be a class conforming to NSObjectProtocol
(easiest way to do this is to inherit from NSObject
), or to be an enum
marked @objc
with a raw value of some integer type like Int
. You may view the edit history for an example of Swift 1.x code using @objc
without these restrictions.
Here's what I did to fix this:
1) Create a new project
2) open the gradle-wrapper.properties file and copy the distributionUrl to your project e.g.:
distributionUrl=https\://services.gradle.org/distributions/gradle-3.2-all.zip
3) open the build.gradle (Project) and copy the gradle dependency to your project e.g.:
classpath 'com.android.tools.build:gradle:2.3.0-beta1'
4) File --> Invalidate Caches / Restart (I think a re-sync may have sufficed, but didn't try it)
5) Delete that project you made (optional)
Look, this is a silly way to do things, but Android Studio is free so who am I to complain...
JVM : A specification which describes the the way/resources to run a java program. Actually executes the byte code and make java platform independent. In doing so, it is different for different platform. JVM for windows cannot work as JVM for UNIX.
JRE : Implementation of JVM. (JVM + run time libraries)
JDK : JRE + java compiler and other essential tools to build a java program from scratch
There's no such thing as an empty char. The closest you can get is '\0'
, the Unicode "null" character. Given that you can embed that within string literals or express it on its own very easily, why would you want a separate field for it? Equally, the "it's easy to confuse ""
and " "
" arguments don't apply for '\0'
.
If you could give an example of where you'd want to use it and why you think it would be better, that might help...
You will first need to create a custom layout xml which will represent a single item in your list. You will add your two buttons to this layout along with any other items you want to display from your list.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:id="@+id/list_item_string"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_alignParentLeft="true"
android:paddingLeft="8dp"
android:textSize="18sp"
android:textStyle="bold" />
<Button
android:id="@+id/delete_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="5dp"
android:text="Delete" />
<Button
android:id="@+id/add_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toLeftOf="@id/delete_btn"
android:layout_centerVertical="true"
android:layout_marginRight="10dp"
android:text="Add" />
</RelativeLayout>
Next you will need to create a Custom ArrayAdapter Class which you will use to inflate your xml layout, as well as handle your buttons and on click events.
public class MyCustomAdapter extends BaseAdapter implements ListAdapter {
private ArrayList<String> list = new ArrayList<String>();
private Context context;
public MyCustomAdapter(ArrayList<String> list, Context context) {
this.list = list;
this.context = context;
}
@Override
public int getCount() {
return list.size();
}
@Override
public Object getItem(int pos) {
return list.get(pos);
}
@Override
public long getItemId(int pos) {
return list.get(pos).getId();
//just return 0 if your list items do not have an Id variable.
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.my_custom_list_layout, null);
}
//Handle TextView and display string from your list
TextView listItemText = (TextView)view.findViewById(R.id.list_item_string);
listItemText.setText(list.get(position));
//Handle buttons and add onClickListeners
Button deleteBtn = (Button)view.findViewById(R.id.delete_btn);
Button addBtn = (Button)view.findViewById(R.id.add_btn);
deleteBtn.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
//do something
list.remove(position); //or some other task
notifyDataSetChanged();
}
});
addBtn.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
//do something
notifyDataSetChanged();
}
});
return view;
}
}
Finally, in your activity you can instantiate your custom ArrayAdapter class and set it to your listview.
public class MyActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my_activity);
//generate list
ArrayList<String> list = new ArrayList<String>();
list.add("item1");
list.add("item2");
//instantiate custom adapter
MyCustomAdapter adapter = new MyCustomAdapter(list, this);
//handle listview and assign adapter
ListView lView = (ListView)findViewById(R.id.my_listview);
lView.setAdapter(adapter);
}
Hope this helps!
There are probably tests you can do, for instance if you know that the JSON returned is always going to be surrounded by {
and }
then you could test for those characters, or some other hacky method. Or you could use the json.org JS library to try and parse it and test if it succeeds.
I would however suggest a different approach. Your PHP script currently returns JSON if the call is successful, but something else if it is not. Why not always return JSON?
E.g.
Successful call:
{ "status": "success", "data": [ <your data here> ] }
Erroneous call:
{ "status": "error", "error": "Database not found" }
This would make writing your client side JS much easier - all you have to do is check the "status" member and the act accordingly.
I can add one more place to check; the package that I was trying to use was another one of my own packages that I had published to a private NPM repo. I had forgotten to configure the 'main' property in the package.json properly. So, the package was there in the node_modules folder of the consuming package, but I was getting "cannot find module". Took me a few minutes to realise my blunder. :-(
The rgba() function can accept a single hex color as well decimal RGB values. For example, this would work just fine:
@mixin background-opacity($color, $opacity: 0.3) {
background: $color; /* The Fallback */
background: rgba($color, $opacity);
}
element {
@include background-opacity(#333, 0.5);
}
If you ever need to break the hex color into RGB components, though, you can use the red(), green(), and blue() functions to do so:
$red: red($color);
$green: green($color);
$blue: blue($color);
background: rgb($red, $green, $blue); /* same as using "background: $color" */
I found that using the Common Event described above works well and you could have the common event set up like this:
private void checkChanged(object sender, EventArgs e)
{
foreach (RadioButton r in yourPanel.Controls)
{
if (r.Checked)
textBox.Text = r.Text;
}
}
Of course, then you can't have other controls in your panel that you use, but it's useful if you just have a separate panel for all your radio buttons (such as using a sub panel inside a group box or however you prefer to organize your controls)
Adding this piece of code after the val() seems to work:
$(":input#single").trigger('change');
Write the code in your viewDidLoad()
self.view.layer.borderColor = anyColor().CGColor
And you can set Color
with RGB
func anyColor() -> UIColor {
return UIColor(red: 0.0/255.0, green: 0.0/255.0, blue: 0.0/255.0, alpha: 1.0)
}
Learn something about CALayer
in UIKit
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
public partial class form_city : System.Web.UI.Page
{
connection con = new connection();
DataTable dtable;
string status = "";
protected void Page_Load(object sender, EventArgs e)
{
TextBoxWatermarkExtender1.WatermarkText = "Enter State Name !";
if (!IsPostBack)
{
status = "Active";
fillgrid();
Session.Add("ope", "Listing");
}
}
protected void fillgrid()
{
//Session.Add("ope", "Listing");
string query = "select *";
query += "from State_Detail where Status='" + status + "'";
dtable = con.sqlSelect(query);
grdList.DataSource = dtable;
grdList.DataBind();
lbtnBack.Visible = false;
}
protected void grdList_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
grdList.PageIndex = e.NewPageIndex;
string operation = Session["ope"].ToString();
if (operation == "ViewLog")
status = "Inactive";
else if (operation == "Listing")
status = "Active";
fillgrid();
}
public string GetImage(string status)
{
if (status == "Active")
return "~/images/green_acti.png";
else
return "~/images/red_acti.png";
}
protected void grdList_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
string st = "Inactive";
int State_Id = Convert.ToInt32(grdList.DataKeys[e.RowIndex].Values[0]);
string query = "update State_Detail set Status='" + st + "'";
query += " where State_Id=" + State_Id;
con.sqlInsUpdDel(query);
status = "Active";
fillgrid();
}
protected void grdList_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName.Equals("Select"))
{
string query = "select * ";
query += "from State_Detail where State_Id=" + e.CommandArgument;
dtable = con.sqlSelect(query);
grdList.DataSource = dtable;
grdList.DataBind();
lbtnBack.Visible = true;
}
}
protected void ibtnSearch_Click(object sender, ImageClickEventArgs e)
{
Session.Add("ope", "Listing");
if (txtDepId.Text != "")
{
string query = "select * from State_Detail where State_Name like '" + txtDepId.Text + "%'";
dtable = con.sqlSelect(query);
grdList.DataSource = dtable;
grdList.DataBind();
txtDepId.Text = "";
}
}
protected void grdList_RowEditing(object sender, GridViewEditEventArgs e)
{
int State_Id = Convert.ToInt32(grdList.DataKeys[e.NewEditIndex].Values[0]);
Session.Add("ope", "Edit");
Session.Add("State_Id", State_Id);
Response.Redirect("form_state.aspx");
}
protected void grdList_Sorting(object sender, GridViewSortEventArgs e)
{
string operation = Session["ope"].ToString();
if (operation == "ViewLog")
status = "Inactive";
else if (operation == "Listing")
status = "Active";
string query = "select * from State_Detail";
query += " where Status='" + status + "'";
dtable = con.sqlSelect(query);
DataView dview = new DataView(dtable);
dview.Sort = e.SortExpression + " asc";
grdList.DataSource = dview;
grdList.DataBind();
}
}
<asp:Image ID="imgGreenAct" ImageUrl='<%# GetImage(Convert.ToString(DataBinder.Eval(Container.DataItem, "Status")))%>' AlternateText='<%# Bind("Status") %>' runat="server" />
Using the :before
pseudo-element,
CSS3's border-radius
,
and some transparency is quite easy:
<div class="circle"></div>
CSS:
.circle, .circle:before{
position:absolute;
border-radius:150px;
}
.circle{
width:200px;
height:200px;
z-index:0;
margin:11%;
padding:40px;
background: hsla(0, 100%, 100%, 0.6);
}
.circle:before{
content:'';
display:block;
z-index:-1;
width:200px;
height:200px;
padding:44px;
border: 6px solid hsla(0, 100%, 100%, 0.6);
/* 4px more padding + 6px border = 10 so... */
top:-10px;
left:-10px;
}
The :before
attaches to our .circle
another element which you only need to make (ok, block, absolute, etc...) transparent and play with the border opacity.
Here is a solution that works even if the string contains non-alphanumeric characters.
function isPalindrome(str) {
str = str.toLowerCase().replace(/\W+|_/g, '');
return str == str.split('').reverse().join('');
}
That won't work in IE<9 though, however, you can make IEs support that using:
PIE makes Internet Explorer 6-8 capable of rendering several of the most useful CSS3 decoration features.
You could simple just do the reverse by making the base of log to e.
import math
e = 2.718281
math.log(e, 10) = 2.302585093
ln(10) = 2.30258093
According PEP8,I prefer to execute SQL in this way:
cur = con.cursor()
# There is no need to add single-quota to the surrounding of `%s`,
# because the MySQLdb precompile the sql according to the scheme type
# of each argument in the arguments list.
sql = "SELECT * FROM records WHERE email LIKE %s;"
args = [search, ]
cur.execute(sql, args)
In this way, you will recognize that the second argument args
of execute
method must be a list of arguments.
May this helps you.
This doesn't show the window:
Process cmd = new Process();
cmd.StartInfo.FileName = "cmd.exe";
cmd.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
cmd.StartInfo.CreateNoWindow = true;
...
cmd.Start();
Several people misread this as a question about how to store passwords in a database. That is wrong. It is about how to store the password that lets you get to the database.
The usual solution is to move the password out of source-code into a configuration file. Then leave administration and securing that configuration file up to your system administrators. That way developers do not need to know anything about the production passwords, and there is no record of the password in your source-control.
On 64-bit systems, MSBuild defaults to the following properties (where C: is SystemDrive):
MSBuildExtensionsPath = C:\Program Files (x86)\MSBuild
MSBuildExtensionsPath32 = C:\Program Files (x86)\MSBuild
MSBuildExtensionsPath64 = C:\Program Files\MSBuild
If it doesn't, it means you either have some custom third-party overrides targets installed, or your MSBuild installation is corrupted.
Things to try:
MSBuildExtensionsPath
manually as above (note the x86
part on 64-bit machines)If you don't want to install anything (I assume you want to add the script into some solution/program/etc that will be run in other machines), you could try creating a vbs script (lets say, replace.vbs):
Const ForReading = 1
Const ForWriting = 2
strFileName = Wscript.Arguments(0)
strOldText = Wscript.Arguments(1)
strNewText = Wscript.Arguments(2)
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objFile = objFSO.OpenTextFile(strFileName, ForReading)
strText = objFile.ReadAll
objFile.Close
strNewText = Replace(strText, strOldText, strNewText)
Set objFile = objFSO.OpenTextFile(strFileName, ForWriting)
objFile.Write strNewText
objFile.Close
And you run it like this:
cscript replace.vbs "C:\One.txt" "Robert" "Rob"
Which is similar to the sed version provided by "bill weaver", but I think this one is more friendly in terms of special (' > < / ) characters.
Btw, I didn't write this, but I can't recall where I got it from.
Often I use this approach for initializing a 2-dimensional array
n=[[int(x) for x in input().split()] for i in range(int(input())]
[ngStyle]="{'opacity': is_mail_sent ? '0.5' : '1' }"
You can use jsdom
const jsdom = require("jsdom");
const { JSDOM } = jsdom;
const { document } = (new JSDOM(`...`)).window;
or, take a look at cheerio, it may more suitable in your case.
string.Format("{0:000}", myString);
I was having this same issue and I had to work it out. I tried these solutions, but at the end the performance, at least for the scrolling didn't improve at all. So here the workaroud that I did perform and the explanation of why it did work for me.
If you had the chance to explore the drag events, just a little, by creating a "MiWebView" Class, overwriting the "onTouchEvent" method and at least printed the time in which every drag event occurs, you'll see that they are separated in time for (down to) 9ms away. That is a very short time in between events.
Take a look at the WebView Source Code, and just see the onTouchEvent function. It is just impossible for it to be handled by the processor in less than 9ms (Keep on dreaming!!!). That's why you constantly see the "Miss a drag as we are waiting for WebCore's response for touch down." message. The code just can't be handled on time.
How to fix it? First, you can not re-write the onTouchEvent code to improve it, it is just too much. But, you can "mock it" in order to limit the event rate for dragging movements let's say to 40ms or 50ms. (this depends on the processor).
All touch events go like this: ACTION_DOWN -> ACTION_MOVE......ACTION_MOVE -> ACTION_UP. So we need to keep the DOWN and UP movements and filter the MOVE rate (these are the bad guys).
And here is a way to do it (you can add more event types like 2 fingers touch, all I'm interested here is the single finger scrolling).
import android.content.Context;
import android.view.MotionEvent;
import android.webkit.WebView;
public class MyWebView extends WebView{
public MyWebView(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
private long lastMoveEventTime = -1;
private int eventTimeInterval = 40;
@Override
public boolean onTouchEvent(MotionEvent ev) {
long eventTime = ev.getEventTime();
int action = ev.getAction();
switch (action){
case MotionEvent.ACTION_MOVE: {
if ((eventTime - lastMoveEventTime) > eventTimeInterval){
lastMoveEventTime = eventTime;
return super.onTouchEvent(ev);
}
break;
}
case MotionEvent.ACTION_DOWN:
case MotionEvent.ACTION_UP: {
return super.onTouchEvent(ev);
}
}
return true;
}
}
Of course Use this class instead of WebView and you'll see the difference when scrolling.
This is just an approach to a solution, yet still not fully implemented for all lag cases due to screen touching when using WebView. However it is the best solution I found, at least for my specific needs.
This is another example using defined column/table names.
DELETE FROM jos_jomres_gdpr_optins WHERE `date_time` < '2020-10-21 08:21:22';
Be careful how you define the table for you will get different results on insert. Consider the following
CREATE TABLE IF NOT EXISTS t1 (id INTEGER PRIMARY KEY, a TEXT UNIQUE, b TEXT);
INSERT INTO t1 (a, b) VALUES
('Alice', 'Some title'),
('Bob', 'Palindromic guy'),
('Charles', 'chucky cheese'),
('Alice', 'Some other title')
ON CONFLICT(a) DO UPDATE SET b=excluded.b;
CREATE TABLE IF NOT EXISTS t2 (id INTEGER PRIMARY KEY, a TEXT UNIQUE, b TEXT, UNIQUE(a) ON CONFLICT REPLACE);
INSERT INTO t2 (a, b) VALUES
('Alice', 'Some title'),
('Bob', 'Palindromic guy'),
('Charles', 'chucky cheese'),
('Alice', 'Some other title');
$ sqlite3 test.sqlite
SQLite version 3.28.0 2019-04-16 19:49:53
Enter ".help" for usage hints.
sqlite> CREATE TABLE IF NOT EXISTS t1 (id INTEGER PRIMARY KEY, a TEXT UNIQUE, b TEXT);
sqlite> INSERT INTO t1 (a, b) VALUES
...> ('Alice', 'Some title'),
...> ('Bob', 'Palindromic guy'),
...> ('Charles', 'chucky cheese'),
...> ('Alice', 'Some other title')
...> ON CONFLICT(a) DO UPDATE SET b=excluded.b;
sqlite> CREATE TABLE IF NOT EXISTS t2 (id INTEGER PRIMARY KEY, a TEXT UNIQUE, b TEXT, UNIQUE(a) ON CONFLICT REPLACE);
sqlite> INSERT INTO t2 (a, b) VALUES
...> ('Alice', 'Some title'),
...> ('Bob', 'Palindromic guy'),
...> ('Charles', 'chucky cheese'),
...> ('Alice', 'Some other title');
sqlite> .mode col
sqlite> .headers on
sqlite> select * from t1;
id a b
---------- ---------- ----------------
1 Alice Some other title
2 Bob Palindromic guy
3 Charles chucky cheese
sqlite> select * from t2;
id a b
---------- ---------- ---------------
2 Bob Palindromic guy
3 Charles chucky cheese
4 Alice Some other titl
sqlite>
While the insert/update effect is the same, the id
changes based on the table definition type (see the second table where 'Alice' now has id = 4
; the first table is doing more of what I expect it to do, keep the PRIMARY KEY the same). Be aware of this effect.
One other possible solution we just found after having this issue across multiple databases/tables on the same server.
Is the max connections open to the sql server. We had an app that wasn't closing it's SQL connection and was leaving them open so we were running around 28K-31K connections (SQL Sever has a max out at 32K ish), and we noticed that once we killed a few thousand sleeping connections it took care of the error listed on this question.
The fix was to update the apps to make sure they closed their connections instead of leaving them open.
public static void main(String args[]) throws ParseException {
String[] days = { "Sunday", "Monday", "Tuesday", "Wednesday",
"Thursday", "Friday", "Saturday" };
SimpleDateFormat format1 = new SimpleDateFormat("dd/MM/yyyy");
Date dt1 = format1.parse("20/10/2013");
Calendar c = Calendar.getInstance();
c.setTime(dt1);
int dayOfWeek = c.get(Calendar.DAY_OF_WEEK);
long diff = Calendar.getInstance().getTime().getTime() ;
System.out.println(dayOfWeek);
switch (dayOfWeek) {
case 6:
System.out.println(days[dayOfWeek - 1]);
break;
case 5:
System.out.println(days[dayOfWeek - 1]);
break;
case 4:
System.out.println(days[dayOfWeek - 1]);
break;
case 3:
System.out.println(days[dayOfWeek - 1]);
break;
case 2:
System.out.println(days[dayOfWeek - 1]);
break;
case 1:
System.out.println(days[dayOfWeek - 1]);
diff = diff -(dt1.getTime()- 3 );
long valuebefore = dt1.getTime();
long valueafetr = dt1.getTime()-2;
System.out.println("DATE IS befor subtraction :"+valuebefore);
System.out.println("DATE IS after subtraction :"+valueafetr);
long x= dt1.getTime()-(2 * 24 * 3600 * 1000);
System.out.println("Deducted date to find firday is - 2 days form Sunday :"+new Date((dt1.getTime()-(2*24*3600*1000))));
System.out.println("DIffrence from now on is :"+diff);
if(diff > 0) {
diff = diff / (1000 * 60 * 60 * 24);
System.out.println("Diff"+diff);
System.out.println("Date is Expired!"+(dt1.getTime() -(long)2));
}
break;
}
}
Maybe:
crimefile = open(fileName, 'r')
yourResult = [line.split(',') for line in crimefile.readlines()]
If you are using the newest version of Android Studio, you can let it assist you in this.
Note: I have tested this in Android Studio 3.0 only.
The procedure is as follows:
In the project view (this comes along with captures and structure on the left side of screen), select Project instead of Android.
The name of your project will be the top of the tree (alongside external libraries).
Select your project then go to Refactor -> Copy...
.
Android Studio will ask you the new name and where you want to copy the project. Provide the same.
After the copying is done, open your new project in Android Studio.
Packages will still be under the old project name.
That is the Java classes packages, application ID and everything else that was generated using the old package name.
We need to change that.
In the project view, select Android.
Open the java sub-directory and select the main package.
Then right click on it and go to Refactor
then Rename
.
Android Studio will give you a warning saying that multiple directories correspond to the package you are about to refactor.
Click on Rename package
and not Rename directory
.
After this step, your project is now completely under the new name.
Build -> Clean project
then Build -> Rebuild project
.If you want to toggle text with a toggle button.
HTMLfile which is using bootstrap:
<input class="btn" (click)="muteStream()" type="button"
[ngClass]="status ? 'btn-success' : 'btn-danger'"
[value]="status ? 'unmute' : 'mute'"/>
TS file:
muteStream() {
this.status = !this.status;
}
Say your string is:
let str = `word1
word2;word3,word4,word5;word7
word8,word9;word10`;
You want to split the string by the following delimiters:
You could split the string like this:
let rawElements = str.split(new RegExp('[,;\n]', 'g'));
Finally, you may need to trim the elements in the array:
let elements = rawElements.map(element => element.trim());
editText.setInputType(InputType.TYPE_NULL);
Convert that string to an int
color which can be used in setBackgroundColor
and setTextColor
String string = "#FFFF0000";
int color = Integer.parseInt(string.replaceFirst("^#",""), 16);
The 16 means it is hexadecimal and not your regular 0-9. The result should be the same as
int color = 0xFFFF0000;
The error MethodNotAllowedHttpException means the route exists, but the HTTP method (GET) is wrong. You have to change it to POST:
Route::post('test/register', array('uses'=>'TestController@create'));
Also, you need to hash your passwords:
public function create()
{
$user = new User;
$user->username = Input::get('username');
$user->email = Input::get('email');
$user->password = Hash::make(Input::get('password'));
$user->save();
return Redirect::back();
}
And I removed the line:
$user= Input::all();
Because in the next command you replace its contents with
$user = new User;
To debug your Input, you can, in the first line of your controller:
dd( Input::all() );
It will display all fields in the input.
I know I am late to the show with this one, but I used this - pretty simple approach. This allows you to get the 60 minute slices without any rounding issues.
Select
CONCAT(
Format(endtime,'yyyy-MM-dd_HH:'),
LEFT(Format(endtime,'mm'),1),
'0'
) as [Time-Slice]
Check the jQuery FAQ...
You can use the length property of the jQuery collection returned by your selector:
if ( $('#myDiv').length ){}
You can use itertools.tee
and zip
to efficiently build the result:
from itertools import tee
# python2 only:
#from itertools import izip as zip
def differences(seq):
iterable, copied = tee(seq)
next(copied)
for x, y in zip(iterable, copied):
yield y - x
Or using itertools.islice
instead:
from itertools import islice
def differences(seq):
nexts = islice(seq, 1, None)
for x, y in zip(seq, nexts):
yield y - x
You can also avoid using the itertools
module:
def differences(seq):
iterable = iter(seq)
prev = next(iterable)
for element in iterable:
yield element - prev
prev = element
All these solution work in constant space if you don't need to store all the results and support infinite iterables.
Here are some micro-benchmarks of the solutions:
In [12]: L = range(10**6)
In [13]: from collections import deque
In [15]: %timeit deque(differences_tee(L), maxlen=0)
10 loops, best of 3: 122 ms per loop
In [16]: %timeit deque(differences_islice(L), maxlen=0)
10 loops, best of 3: 127 ms per loop
In [17]: %timeit deque(differences_no_it(L), maxlen=0)
10 loops, best of 3: 89.9 ms per loop
And the other proposed solutions:
In [18]: %timeit [x[1] - x[0] for x in zip(L[1:], L)]
10 loops, best of 3: 163 ms per loop
In [19]: %timeit [L[i+1]-L[i] for i in range(len(L)-1)]
1 loops, best of 3: 395 ms per loop
In [20]: import numpy as np
In [21]: %timeit np.diff(L)
1 loops, best of 3: 479 ms per loop
In [35]: %%timeit
...: res = []
...: for i in range(len(L) - 1):
...: res.append(L[i+1] - L[i])
...:
1 loops, best of 3: 234 ms per loop
Note that:
zip(L[1:], L)
is equivalent to zip(L[1:], L[:-1])
since zip
already terminates on the shortest input, however it avoids a whole copy of L
.numpy.diff
is slow because it has to first convert the list
to a ndarray
. Obviously if you start with an ndarray
it will be much faster:
In [22]: arr = np.array(L)
In [23]: %timeit np.diff(arr)
100 loops, best of 3: 3.02 ms per loop
Or simply:
Date.now
From MDN documentation:
The Date.now() method returns the number of milliseconds elapsed since January 1, 1970
Available since ECMAScript 5.1
It's the same as was mentioned above (new Date().getTime()
), but more shortcutted version.
Resources from src/main/resources
will be put onto the root of the classpath, so you'll need to get the resource as:
new BufferedReader(new InputStreamReader(getClass().getResourceAsStream("/config.txt")));
You can verify by looking at the JAR/WAR file produced by maven as you'll find config.txt
in the root of your archive.
typeof
is applied to a name of a type or generic type parameter known at compile time (given as identifier, not as string). GetType
is called on an object at runtime. In both cases the result is an object of the type System.Type
containing meta-information on a type.
Example where compile-time and run-time types are equal
string s = "hello";
Type t1 = typeof(string);
Type t2 = s.GetType();
t1 == t2 ==> true
Example where compile-time and run-time types are different
object obj = "hello";
Type t1 = typeof(object); // ==> object
Type t2 = obj.GetType(); // ==> string!
t1 == t2 ==> false
i.e., the compile time type (static type) of the variable obj
is not the same as the runtime type of the object referenced by obj
.
Testing types
If, however, you only want to know whether mycontrol
is a TextBox
then you can simply test
if (mycontrol is TextBox)
Note that this is not completely equivalent to
if (mycontrol.GetType() == typeof(TextBox))
because mycontrol
could have a type that is derived from TextBox
. In that case the first comparison yields true
and the second false
! The first and easier variant is OK in most cases, since a control derived from TextBox
inherits everything that TextBox
has, probably adds more to it and is therefore assignment compatible to TextBox
.
public class MySpecializedTextBox : TextBox
{
}
MySpecializedTextBox specialized = new MySpecializedTextBox();
if (specialized is TextBox) ==> true
if (specialized.GetType() == typeof(TextBox)) ==> false
Casting
If you have the following test followed by a cast and T is nullable ...
if (obj is T) {
T x = (T)obj; // The casting tests, whether obj is T again!
...
}
... you can change it to ...
T x = obj as T;
if (x != null) {
...
}
Testing whether a value is of a given type and casting (which involves this same test again) can both be time consuming for long inheritance chains. Using the as
operator followed by a test for null
is more performing.
Starting with C# 7.0 you can simplify the code by using pattern matching:
if (obj is T t) {
// t is a variable of type T having a non-null value.
...
}
Btw.: this works for value types as well. Very handy for testing and unboxing. Note that you cannot test for nullable value types:
if (o is int? ni) ===> does NOT compile!
This is because either the value is null
or it is an int
. This works for int? o
as well as for object o = new Nullable<int>(x);
:
if (o is int i) ===> OK!
I like it, because it eliminates the need to access the Nullable<T>.Value
property.
Hi first of all i would like you to use 'Synaptic Package Manager'. You just need to goto the ubuntu software center and search for synaptic package manager.. The beauty of this is that all the packages you need are easily available here. Second it will automatically configures all your paths. Now install this then search for opencv packages over there if you found the package with the green box then its installed but else the package is not in the right place so you need to reinstall it but from package manager this time. If installed then you can do this only, you just need to fill the OpenCV_DIR variable with the path of opencv (containing the OpenCVConfig.cmake file)
export OpenCV_DIR=<path_of_opencv>
you can use online library
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap-theme.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
or else download library and add css in css folder and jquery in js folder.both folder you keep in laravel public folder then you can link like below
<link rel="stylesheet" href="{{asset('css/bootstrap-theme.min.css')}}">
<script src="{{asset('js/jquery.min.js')}}"></script>
or else
{{ HTML::style('css/style.css') }}
{{ HTML::script('js/functions.js') }}
I've extended the answer by m.kocikowski and tried to make it a bit more efficient by using an NSMutableString. I've also structured it for use in a static Utils class (I know a Category is probably the best design though), and removed the autorelease so it compiles in an ARC project.
Included here in case anybody finds it useful.
.h
+ (NSString *)stringByStrippingHTML:(NSString *)inputString;
.m
+ (NSString *)stringByStrippingHTML:(NSString *)inputString
{
NSMutableString *outString;
if (inputString)
{
outString = [[NSMutableString alloc] initWithString:inputString];
if ([inputString length] > 0)
{
NSRange r;
while ((r = [outString rangeOfString:@"<[^>]+>" options:NSRegularExpressionSearch]).location != NSNotFound)
{
[outString deleteCharactersInRange:r];
}
}
}
return outString;
}
Dollar sign is used in ecmascript 2015-2016 as 'template literals'. Example:
var a = 5;
var b = 10;
console.log(`Sum is equal: ${a + b}`); // 'Sum is equlat: 15'
Here working example: https://es6console.com/j3lg8xeo/ Notice this sign " ` ",its not normal quotes.
U can also meet $ while working with library jQuery.
$ sign in Regular Expressions means end of line.
Download the Processing application from http://www.processing.org/download/. The zip file contains a folder called java. It includes the JDK 1.6.0_32 (version checked on 19/02/2013).
If you have an instance function (i.e. one that gets passed self) you can use self to get a reference to the class using self.__class__
For example in the code below tornado creates an instance to handle get requests, but we can get hold of the get_handler
class and use it to hold a riak client so we do not need to create one for every request.
import tornado.web
import riak
class get_handler(tornado.web.requestHandler):
riak_client = None
def post(self):
cls = self.__class__
if cls.riak_client is None:
cls.riak_client = riak.RiakClient(pb_port=8087, protocol='pbc')
# Additional code to send response to the request ...
Depending on your needs, you have a few options here.
If you don't need to do key/value lookups and want to stick with a List<>
, you can make use of Tuple<int, string>
:
List<Tuple<int, string>> mylist = new List<Tuple<int, string>>();
// add an item
mylist.Add(new Tuple<int, string>(someInt, someString));
If you do want key/value lookups, you could move towards a Dictionary<int, string>
:
Dictionary<int, string> mydict = new Dictionary<int, string>();
// add an item
mydict.Add(someInt, someString);
Ah, that would be because RegExp is not jQuery. :)
Try this page. jQuery.attr
doesn't return a String so that would certainly cause in this regard. Fortunately I believe you can just use .text()
to return the String representation.
Something like:
$("li").val("title").search(/sometext/i));
Many good answers here, but some of them are a little dated. If you want to add further worksheets to a single file then this is the approach I find works for me. For clarity, here is the workflow for openxlsx
version 4.0
# Create a blank workbook
OUT <- createWorkbook()
# Add some sheets to the workbook
addWorksheet(OUT, "Sheet 1 Name")
addWorksheet(OUT, "Sheet 2 Name")
# Write the data to the sheets
writeData(OUT, sheet = "Sheet 1 Name", x = dataframe1)
writeData(OUT, sheet = "Sheet 2 Name", x = dataframe2)
# Export the file
saveWorkbook(OUT, "My output file.xlsx")
EDIT
I've now trialled a few other answers, and I actually really like @Syed's. It doesn't exploit all the functionality of openxlsx
but if you want a quick-and-easy export method then that's probably the most straightforward.
If you're worried about changes and possibly incompatibly VMs, just copy the existing hashcode implementation into your own utility class, and use that to generate your hashcodes .
I do it in Kotlin like this:
open class BaseAppCompatActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelectedListener {
protected lateinit var drawerLayout: DrawerLayout
protected lateinit var navigationView: NavigationView
@Inject
lateinit var loginService: LoginService
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
Log.d("BaseAppCompatActivity", "onCreate()")
App.getComponent().inject(this)
drawerLayout = findViewById(R.id.drawer_layout) as DrawerLayout
val toolbar = findViewById(R.id.toolbar) as Toolbar
setSupportActionBar(toolbar)
navigationView = findViewById(R.id.nav_view) as NavigationView
navigationView.setNavigationItemSelectedListener(this)
val toggle = ActionBarDrawerToggle(this, drawerLayout, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close)
drawerLayout.addDrawerListener(toggle)
toggle.syncState()
toggle.isDrawerIndicatorEnabled = true
val navigationViewHeaderView = navigationView.getHeaderView(0)
navigationViewHeaderView.login_txt.text = SharedKey.username
}
private inline fun <reified T: Activity> launch():Boolean{
if(this is T) return closeDrawer()
val intent = Intent(applicationContext, T::class.java)
startActivity(intent)
finish()
return true
}
private fun closeDrawer(): Boolean {
drawerLayout.closeDrawer(GravityCompat.START)
return true
}
override fun onNavigationItemSelected(item: MenuItem): Boolean {
val id = item.itemId
when (id) {
R.id.action_tasks -> {
return launch<TasksActivity>()
}
R.id.action_contacts -> {
return launch<ContactActivity>()
}
R.id.action_logout -> {
createExitDialog(loginService, this)
}
}
return false
}
}
Activities for drawer must inherit this BaseAppCompatActivity
, call super.onCreate
after content is set (actually, can be moved to some init method) and have corresponding elements for ids in their layout
The endroid/QrCode library is easy to use, well maintained, and can be installed using composer. There is also a bundle to use directly with Symfony.
Installing :
$ composer require endroid/qrcode
Usage :
<?php
use Endroid\QrCode\QrCode;
$qrCode = new QrCode();
$qrCode
->setText('Life is too short to be generating QR codes')
->setSize(300)
->setPadding(10)
->setErrorCorrection('high')
->setForegroundColor(array('r' => 0, 'g' => 0, 'b' => 0, 'a' => 0))
->setBackgroundColor(array('r' => 255, 'g' => 255, 'b' => 255, 'a' => 0))
->setLabel('Scan the code')
->setLabelFontSize(16)
->setImageType(QrCode::IMAGE_TYPE_PNG)
;
// now we can directly output the qrcode
header('Content-Type: '.$qrCode->getContentType());
$qrCode->render();
// or create a response object
$response = new Response($qrCode->get(), 200, array('Content-Type' => $qrCode->getContentType()));
You can look into HTML TIDY - http://uk.php.net/tidy
It can be installed as a PHP module and will (correctly, safely) strip whitespace and all other nastiness, whilst still outputting perfectly valid HTML / XHTML markup. It will also clean your code, which can be a great thing or a terrible thing, depending on how good you are at writing valid code in the first place ;-)
Additionally, you can gzip the output using the following code at the start of your file:
ob_start('ob_gzhandler');
Yes, it is possible both in Sublime Text 2 and 3 (which you should really upgrade to if you haven't already). Select View ? Ruler ? 80
(there are several other options there as well). If you like to actually wrap your text at 80 columns, select View ? Word Wrap Column ? 80
. Make sure that View ? Word Wrap
is selected.
To make your selections permanent (the default for all opened files or views), open Preferences ? Settings—User
and use any of the following rules:
{
// set vertical rulers in specified columns.
// Use "rulers": [80] for just one ruler
// default value is []
"rulers": [80, 100, 120],
// turn on word wrap for source and text
// default value is "auto", which means off for source and on for text
"word_wrap": true,
// set word wrapping at this column
// default value is 0, meaning wrapping occurs at window width
"wrap_width": 80
}
These settings can also be used in a .sublime-project
file to set defaults on a per-project basis, or in a syntax-specific .sublime-settings
file if you only want them to apply to files written in a certain language (Python.sublime-settings
vs. JavaScript.sublime-settings
, for example). Access these settings files by opening a file with the desired syntax, then selecting Preferences ? Settings—More ? Syntax Specific—User
.
As always, if you have multiple entries in your settings file, separate them with commas ,
except for after the last one. The entire content should be enclosed in curly braces { }
. Basically, make sure it's valid JSON.
If you'd like a key combo to automatically set the ruler at 80 for a particular view/file, or you are interested in learning how to set the value without using the mouse, please see my answer here.
Finally, as mentioned in another answer, you really should be using a monospace font in order for your code to line up correctly. Other types of fonts have variable-width letters, which means one 80-character line may not appear to be the same length as another 80-character line with different content, and your indentations will look all messed up. Sublime has monospace fonts set by default, but you can of course choose any one you want. Personally, I really like Liberation Mono. It has glyphs to support many different languages and Unicode characters, looks good at a variety of different sizes, and (most importantly for a programming font) clearly differentiates between 0
and O
(digit zero and capital letter oh) and 1
and l
(digit one and lowercase letter ell), which not all monospace fonts do, unfortunately. Version 2.0 and later of the font are licensed under the open-source SIL Open Font License 1.1 (here is the FAQ).
This answer concerns developers for Windows. You want to pick an XML parsing module that does NOT depend on node-expat. Node-expat requires node-gyp and node-gyp requires you to install Visual Studio on your machine. If your machine is a Windows Server, you definitely don't want to install Visual Studio on it.
So, which XML parsing module to pick?
Save yourself a lot of trouble and use either xml2js or xmldoc. They depend on sax.js which is a pure Javascript solution that doesn't require node-gyp.
Both libxmljs and xml-stream require node-gyp. Don't pick these unless you already have Visual Studio on your machine installed or you don't mind going down that road.
Update 2015-10-24: it seems somebody found a solution to use node-gyp on Windows without installing VS: https://github.com/nodejs/node-gyp/issues/629#issuecomment-138276692
The Groovy way to do this is
def list = []
list << new MyType(...)
which creates a list and uses the overloaded leftShift
operator to append an item
See the Groovy docs on Lists for lots of examples.
git-pull - Fetch from and integrate with another repository or a local branch GIT PULL
Basically you are pulling remote branch to your local, example:
git pull origin master
Will pull master branch into your local repository
git-rebase - Forward-port local commits to the updated upstream head GIT REBASE
This one is putting your local changes on top of changes done remotely by other users. For example:
SOME-FEATURE
Now you want to see his and your changes on your local branch.
So then you checkout master
branch:
git checkout master
then you can pull:
git pull origin master
and then you go to your branch:
git checkout SOME-FEATURE
and you can do rebase master
to get lastest changes from it and put your branch commits on top:
git rebase master
I hope now it's a bit more clear for you.
You can do it like you assumed. But your HashMap has to be templated:
Map<String, Map<String, String>> map =
new HashMap<String, Map<String, String>>();
Otherwise you have to do a cast to Map
after you retrieve the second map from the first.
Map map = new HashMap();
((Map)map.get( "keyname" )).get( "nestedkeyname" );
Assuming no SecurityManager
is preventing you from doing this, you can use setAccessible
to get around private
and resetting the modifier to get rid of final
, and actually modify a private static final
field.
Here's an example:
import java.lang.reflect.*;
public class EverythingIsTrue {
static void setFinalStatic(Field field, Object newValue) throws Exception {
field.setAccessible(true);
Field modifiersField = Field.class.getDeclaredField("modifiers");
modifiersField.setAccessible(true);
modifiersField.setInt(field, field.getModifiers() & ~Modifier.FINAL);
field.set(null, newValue);
}
public static void main(String args[]) throws Exception {
setFinalStatic(Boolean.class.getField("FALSE"), true);
System.out.format("Everything is %s", false); // "Everything is true"
}
}
Assuming no SecurityException
is thrown, the above code prints "Everything is true"
.
What's actually done here is as follows:
boolean
values true
and false
in main
are autoboxed to reference type Boolean
"constants" Boolean.TRUE
and Boolean.FALSE
public static final Boolean.FALSE
to refer to the Boolean
referred to by Boolean.TRUE
false
is autoboxed to Boolean.FALSE
, it refers to the same Boolean
as the one refered to by Boolean.TRUE
"false"
now is "true"
static final File.separatorChar
for unit testingInteger
's cache, mutating a String
, etcExtreme care should be taken whenever you do something like this. It may not work because a SecurityManager
may be present, but even if it doesn't, depending on usage pattern, it may or may not work.
JLS 17.5.3 Subsequent Modification of Final Fields
In some cases, such as deserialization, the system will need to change the
final
fields of an object after construction.final
fields can be changed via reflection and other implementation dependent means. The only pattern in which this has reasonable semantics is one in which an object is constructed and then thefinal
fields of the object are updated. The object should not be made visible to other threads, nor should thefinal
fields be read, until all updates to thefinal
fields of the object are complete. Freezes of afinal
field occur both at the end of the constructor in which thefinal
field is set, and immediately after each modification of afinal
field via reflection or other special mechanism.Even then, there are a number of complications. If a
final
field is initialized to a compile-time constant in the field declaration, changes to thefinal
field may not be observed, since uses of thatfinal
field are replaced at compile time with the compile-time constant.Another problem is that the specification allows aggressive optimization of
final
fields. Within a thread, it is permissible to reorder reads of afinal
field with those modifications of a final field that do not take place in the constructor.
private static final boolean
, because it's inlineable as a compile-time constant and thus the "new" value may not be observableEssentially,
field.getModifiers() & ~Modifier.FINAL
turns off the bit corresponding to Modifier.FINAL
from field.getModifiers()
. &
is the bitwise-and, and ~
is the bitwise-complement.
Still not being able to solve this?, have fallen onto depression like I did for it? Does your code looks like this?
public class A {
private final String myVar = "Some Value";
}
Reading the comments on this answer, specially the one by @Pshemo, it reminded me that Constant Expressions are handled different so it will be impossible to modify it. Hence you will need to change your code to look like this:
public class A {
private final String myVar;
private A() {
myVar = "Some Value";
}
}
if you are not the owner of the class... I feel you!
For more details about why this behavior read this?
I can't remember where I got this from that I used in my assignment (I usually copy paste the URL where I found it as an easy form of citation) and I cannot decipher what the trailing (file) = 0
is although my best guess is that it is redundancy to set any references to file to 0.
#define fclose(file) ((file) ? fclose(file) : 0, (file) = 0)
file
if a pointer declared as:
FILE *file=NULL;
You are trying to send headers information after outputing content.
If you want to do this, look for output buffering.
Therefore, look to use ob_start();
In theory, there's nothing preventing you from sending a request body in a GET
request. The HTTP protocol allows it, but have no defined semantics, so it's up to you to document what exactly is going to happen when a client sends a GET
payload. For instance, you have to define if parameters in a JSON body are equivalent to querystring parameters or something else entirely.
However, since there are no clearly defined semantics, you have no guarantee that implementations between your application and the client will respect it. A server or proxy might reject the whole request, or ignore the body, or anything else. The REST way to deal with broken implementations is to circumvent it in a way that's decoupled from your application, so I'd say you have two options that can be considered best practices.
The simple option is to use POST
instead of GET
as recommended by other answers. Since POST
is not standardized by HTTP, you'll have to document how exactly that's supposed to work.
Another option, which I prefer, is to implement your application assuming the GET
payload is never tampered with. Then, in case something has a broken implementation, you allow clients to override the HTTP method with the X-HTTP-Method-Override
, which is a popular convention for clients to emulate HTTP methods with POST
. So, if a client has a broken implementation, it can write the GET
request as a POST
, sending the X-HTTP-Method-Override: GET
method, and you can have a middleware that's decoupled from your application implementation and rewrites the method accordingly. This is the best option if you're a purist.
You could also use python reduce:
def deep_get(dictionary, *keys):
return reduce(lambda d, key: d.get(key) if d else None, keys, dictionary)
Simply type
MODE [width],[height]
Example:
MODE 14,1
That is the smallest size possible.
MODE 1000,1000
is the largest possible, although it probably won't even fit your screen. If you want to minimize it, type
start /min [yourbatchfile/cmd]
and of course, to maximaze,
start /max [yourbatchfile/cmd]
I am currently working on doing this from the same batch files so that you don't have to have two or start it with cmd. of course, there are shortcuts, but I'm gonna try to figure it out.
It's generally a bad idea to write your own cryptography unless you have experience breaking other peoples' cryptography implementations.
None of the examples here authenticate the ciphertext, which leaves them vulnerable to bit-rewriting attacks.
<?php
// PECL libsodium 0.2.1 and newer
/**
* Encrypt a message
*
* @param string $message - message to encrypt
* @param string $key - encryption key
* @return string
*/
function safeEncrypt($message, $key)
{
$nonce = \Sodium\randombytes_buf(
\Sodium\CRYPTO_SECRETBOX_NONCEBYTES
);
return base64_encode(
$nonce.
\Sodium\crypto_secretbox(
$message,
$nonce,
$key
)
);
}
/**
* Decrypt a message
*
* @param string $encrypted - message encrypted with safeEncrypt()
* @param string $key - encryption key
* @return string
*/
function safeDecrypt($encrypted, $key)
{
$decoded = base64_decode($encrypted);
$nonce = mb_substr($decoded, 0, \Sodium\CRYPTO_SECRETBOX_NONCEBYTES, '8bit');
$ciphertext = mb_substr($decoded, \Sodium\CRYPTO_SECRETBOX_NONCEBYTES, null, '8bit');
return \Sodium\crypto_secretbox_open(
$ciphertext,
$nonce,
$key
);
}
Then to test it out:
<?php
// This refers to the previous code block.
require "safeCrypto.php";
// Do this once then store it somehow:
$key = \Sodium\randombytes_buf(\Sodium\CRYPTO_SECRETBOX_KEYBYTES);
$message = 'We are all living in a yellow submarine';
$ciphertext = safeEncrypt($message, $key);
$plaintext = safeDecrypt($ciphertext, $key);
var_dump($ciphertext);
var_dump($plaintext);
This can be used in any situation where you are passing data to the client (e.g. encrypted cookies for sessions without server-side storage, encrypted URL parameters, etc.) with a reasonably high degree of certainty that the end user cannot decipher or reliably tamper with it.
Since libsodium is cross-platform, this also makes it easier to communicate with PHP from, e.g. Java applets or native mobile apps.
Note: If you specifically need to add encrypted cookies powered by libsodium to your app, my employer Paragon Initiative Enterprises is developing a library called Halite that does all of this for you.
What's wrong with self.left = None
?
I am currently developing an web application with EF Core and here is the pattern I use:
All my classes (tables) have an int
PK and FK.
I then have an additional column of type Guid
(generated by the C# constructor) with a non clustered index on it.
All the joins of tables within EF are managed through the int
keys while all the access from outside (controllers) are done with the Guid
s.
This solution allows to not show the int
keys on URLs but keep the model tidy and fast.
The first and foremost condition that needs to be met is that both the parent and iframe should belong to the same origin. Once that is done the child can invoke the parent using window.opener method and the parent can do the same for the child as mentioned above
If You Have Multiple li
elements inside an li
element then this will definitely help you, and i have checked it and it works....
<script>
$("li").on('click', function() {
alert(this.id);
return false;
});
</script>
array_combine()
worked great for me while combining $_POST
multiple values from multiple form inputs in an attempt to update products quantities in a shopping cart.
Rails got ActiveSupport::CoreExtensions::String::Inflections
module that provides such methods. They're all worth looking at. For your example:
'Book Author Title'.parameterize.underscore.to_sym # :book_author_title
The error is due the fact that you are passing a wrong to strcat()
. Look at strcat()
's prototype:
char *strcat(char *dest, const char *src);
But you pass char
as the second argument, which is obviously wrong.
Use snprintf()
instead.
char str[1024] = "Hello World";
char tmp = '.';
size_t len = strlen(str);
snprintf(str + len, sizeof str - len, "%c", tmp);
As commented by OP:
That was just a example with Hello World to describe the Problem. It must be empty as first in my real program. Program will fill it later. The problem just contains to add a char/int to an char Array
In that case, snprintf()
can handle it easily to "append" integer types to a char buffer too. The advantage of snprintf()
is that it's more flexible to concatenate various types of data into a char buffer.
For example to concatenate a string, char and an int:
char str[1024];
ch tmp = '.';
int i = 5;
// Fill str here
snprintf(str + len, sizeof str - len, "%c%d", str, tmp, i);
Or you can always map
over an iterator, without the need to build an intermediate list:
>>> _ = map(sys.stdout.write, (x for x in string.letters if x in (y for y in "BigMan on campus")))
acgimnopsuBM
public void Each<T>(IEnumerable<T> items, Action<T> action)
{
foreach (var item in items)
action(item);
}
... and call it thusly:
Each(myList, i => Console.WriteLine(i));
To answer your question, these should work as long as:
But, if I remember correctly, these values can be faked to an extent, so it's best not to rely on them.
My personal preference is to set the domain name as an environment variable in the apache2 virtual host:
# Virtual host
setEnv DOMAIN_NAME example.com
And read it in PHP:
// PHP
echo getenv(DOMAIN_NAME);
This, however, isn't applicable in all circumstances.
Okay, it took me a while to see this, but there's no way this compiles:
return String.(ConfigurationManager.AppSettings[paramName]);
You're not even calling a method on the String
type. Just do this:
return ConfigurationManager.AppSettings[paramName];
The AppSettings
KeyValuePair already returns a string. If the name doesn't exist, it will return null
.
Based on your edit you have not yet added a Reference to the System.Configuration
assembly for the project you're working in.
best and simple way is to put title inside a span and replace then.
'<div id="'+div_id+'" class="widget" style="height:60px;width:110px">\n\
<div class="widget-head ui-widget-header"
style="cursor:move;height:20px;width:130px">'+
'<span id="'+span_id+'" style="float:right; cursor:pointer"
class="dialog_link ui-icon ui-icon-newwin ui-icon-pencil"></span>' +
'<span id="spTitle">'+
dialog_title+ '</span>'
'</div></div>
now you can simply use this:
$('#'+div_id+' .widget-head sp#spTitle').text("new dialog title");
There can also be problem deleting a stuck database if snapshot is enabled. For me this worked:
instead of using time try timedelta:
from datetime import timedelta
t1 = timedelta(hours=7, minutes=36)
t2 = timedelta(hours=11, minutes=32)
t3 = timedelta(hours=13, minutes=7)
t4 = timedelta(hours=21, minutes=0)
arrival = t2 - t1
lunch = (t3 - t2 - timedelta(hours=1))
departure = t4 - t3
print(arrival, lunch, departure)
In WAMP, right click on WAMP tray icon then change the port from 3308 to 3306 like this:
In my case this exception was caused by jupiter
implementation 'org.junit.jupiter:junit-jupiter:5.6.2'
Everyone else's method doesn't account for whitespaces. Obviously nobody really considers a whitespace a special character.
Use this method to detect special characters not including whitespaces:
import re
def detect_special_characer(pass_string):
regex= re.compile('[@_!#$%^&*()<>?/\|}{~:]')
if(regex.search(pass_string) == None):
res = False
else:
res = True
return(res)
I got similar error (my app crashes) after I renamed something in strings.xml
and forgot to modify other files (a preference xml resource file and java code).
IDE (android studio) didn't showed any errors. But, after I repaired my xml files and java code, app ran okay. So, maybe there are some small mistakes in your xml files or constants.
Try this:
try
{
throw new InvalidEmployeeTypeException();
input.nextLine();
}
catch(InvalidEmployeeTypeException ex)
{
//do error handling
}
continue;
The Following:
.show-grid [class*="span"] {
means that all child elements of '.show-grid' with a class that CONTAINS the word 'span' in it will acquire those CSS properties.
<div class="show-grid">
<div class="span">.span</div>
<div class="span6">span6</div>
<div class="attention-span">attention</div>
<div class="spanish">spanish</div>
<div class="mariospan">mariospan</div>
<div class="espanol">espanol</div>
<div>
<div class="span">.span</div>
</div>
<p class="span">span</p>
<span class="span">I do GET HIT</span>
<span>I DO NOT GET HIT since I need a class of 'span'</span>
</div>
<div class="span">I DO NOT GET HIT since I'm outside of .show-grid</span>
All of the elements get hit except for the <span>
by itself.
In Regards to Bootstrap:
span6
: this was Bootstrap 2's scaffolding technique which divided a section into a horizontal grid, based on parts of 12. Thus span6
would have a width of 50%..col-*
classes (e.g. col-sm-6
), which also specifies a media breakpoint to handle responsiveness when the window shrinks below a certain size. Check Bootstrap 4.1 and Bootstrap 3.3.7 for more documentation. I would recommend going with a later Bootstrap nowadaysUse data type LONGBLOB
instead of BLOB
in your database table.
If you don't mention the random_state in the code, then whenever you execute your code a new random value is generated and the train and test datasets would have different values each time.
However, if you use a particular value for random_state(random_state = 1 or any other value) everytime the result will be same,i.e, same values in train and test datasets.
This is the a simple JS code I wrote:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="pt-br" lang="pt-br">
<head><title>Submit after typing finished</title>
<script language="javascript" type="text/javascript">
function DelayedSubmission() {
var date = new Date();
initial_time = date.getTime();
if (typeof setInverval_Variable == 'undefined') {
setInverval_Variable = setInterval(DelayedSubmission_Check, 50);
}
}
function DelayedSubmission_Check() {
var date = new Date();
check_time = date.getTime();
var limit_ms=check_time-initial_time;
if (limit_ms > 800) { //Change value in milliseconds
alert("insert your function"); //Insert your function
clearInterval(setInverval_Variable);
delete setInverval_Variable;
}
}
</script>
</head>
<body>
<input type="search" onkeyup="DelayedSubmission()" id="field_id" style="WIDTH: 100px; HEIGHT: 25px;" />
</body>
</html>
you can use len(arr)
as suggested in previous answers to get the length of the array. In case you want the dimensions of a 2D array you could use arr.shape
returns height and width
Keep in mind that what you're getting in a POST on the server-side is a key-value pair. You have values, but where is your key? In this case, you'll want to set the name
attribute of the buttons so that there's a key by which to access the value.
Additionally, in keeping with conventions, you'll want to change the type
of these input
s (buttons) to submit
so that they post their values to the form properly.
Also, what is your onclick
doing?
You get this error if you have constrained T
to being a class
The way I resolved this was setup error logs correctly, first
<VirtualHost *:80>
DocumentRoot "D:/websites/test/"
ServerName test.dev
ErrorLog "D:/websites/test/logs/error.log"
CustomLog "D:/websites/test/logs/access.log" common
<Directory D:/websites/test/>
AllowOverride none
Require all granted
</Directory>
</VirtualHost>
After this error are being logged into "D:/websites/test/logs/" make sure to create logs folder yourself. The exact error that was recorded in error log was
AH01630: client denied by server configuration:
Which pointed me to correct solution using this link which said for the above error
Require all granted
is required. My sample sample code above fixes the problem by the way.
the above query only works if we have created clients table with matching columns of the customer
INSERT INTO clients(c_id,name,address)SELECT c_id,name,address FROM customer
Overly simplified here, but Func is a machine, whereas Expression is a blueprint. :D
There are two things you can do first undo merge by command
git merge --abort
or
you can go to your previous commit state temporarily by command
git checkout 0d1d7fc32
As said, to follow redirects you can use the flag -L
or --location
:
curl -L http://www.example.com
But, if you want limit the number of redirects, add the parameter --max-redirs
--max-redirs <num>
Set maximum number of redirection-followings allowed. If
-L
,--location
is used, this option can be used to prevent curl from following redirections "in absurdum". By default, the limit is set to 50 redirections. Set this option to -1 to make it limitless. If this option is used several times, the last one will be used.
I believe that it is virtually never correct to use nolock.
If you are reading a single row, then the correct index means that you won't need NOLOCK as individual row actions are completed quickly.
If you are reading many rows for anything other than temporary display, and care about being able repeat the result, or defend by the number produced, then NOLOCK is not appropriate.
NOLOCK is a surrogate tag for "i don't care if this answer contains duplicate rows, rows which are deleted, or rows which were never inserted to begin with because of rollback"
Errors which are possible under NOLOCK:
Any action which can cause a page split while the noLock select is running can cause these things to occur. Almost any action (even a delete) can cause a page split.
Therefore: if you "know" that the row won't be changed while you are running, don't use nolock, as an index will allow efficient retrieval.
If you suspect the row can change while the query is running, and you care about accuracy, don't use nolock.
If you are considering NOLOCK because of deadlocks, examine the query plan structure for unexpected table scans, trace the deadlocks and see why they occur. NOLOCK around writes can mean that queries which previously deadlocked will potentially both write the wrong answer.
You have here available an example of DNS Caching in Debian using dnsmasq.
Configuration summary:
# Ensure you add this line
DNSMASQ_OPTS="-r /etc/resolv.dnsmasq"
# Your preferred servers
nameserver 1.1.1.1
nameserver 8.8.8.8
nameserver 2001:4860:4860::8888
nameserver 127.0.0.1
Then just restart dnsmasq.
Benchmark test using DNS 1.1.1.1:
for i in {1..100}; do time dig slashdot.org @1.1.1.1; done 2>&1 | grep ^real | sed -e s/.*m// | awk '{sum += $1} END {print sum / NR}'
Benchmark test using you local cached DNS:
for i in {1..100}; do time dig slashdot.org; done 2>&1 | grep ^real | sed -e s/.*m// | awk '{sum += $1} END {print sum / NR}'
Recommend to use LINQPad related nuget
package, then you can use exceptionInstance.Dump()
.
LINQPad.Runtime
LINQPad
Sample code:
using System;
using LINQPad;
namespace csharp_Dump_test
{
public class Program
{
public static void Main()
{
try
{
dosome();
}
catch (Exception ex)
{
ex.Dump();
}
}
private static void dosome()
{
throw new Exception("Unable.");
}
}
}
LinqPad nuget package is the most awesome tool for printing exception stack information. May it be helpful for you.
I think intellij is the best option for android. i have used both eclipse and intellij and found intellij is much easier to use with android as compared to eclipse because of these reasons :-
Intellij provides a built-in support for android and you don't have to configure it as you need to do with eclipse. Intellij gives you auto-lookup feature which is really important for developer like us to increase our productivity. And if we talk about eclipse you have to type each and every method, classname etc on your own. (May be eclipse has this feature too but i never found it and trust me i tried to find it like anything) Its much more user friendly and easy to use than eclipse. I hope it will help you and other members of stack overflow to decide which IDE is best for Android development.
My personal choice is Intellij.
EDIT
But there is one thing i love about eclipse and that is visual layout creator. You can use drag and drop technique to create a layout and eclipse will automatically generate an XML file for you just like XCODE.
EDIT
Good News!! Intellij added a new feature which shows how your app's view is going to look like. It doesn't work exactly like Eclipse but it will give you a good idea about your layout.
My personal choice is still Intellij because it helps me to type faster than eclipse.
EDIT
Ok guys these days i am using eclipse juno and found its kind of buggy and slow. So if you still want to use eclipse better stick to some older version. And finally i am able to found how to enable auto-complete in eclipse. Below is a small tutorial.
Eclipse -> Preference - > Java -> Editor -> Content Assist -> Auto Activation
Now put following in the three given boxes
Auto Activation delay(ms) - 0
Auto activation triggers for java - .(abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
Auto activation triggers for javadoc - @#
You are now good to go. Happy coding.
EDIT
As now Google has adopted Intellij for their own Android dev tool, there is no question now about which one is better. Intellij is far far better than eclipse. And i switched back to Intellij and it feels like i am back home!! :D
If writing to a protected file, @drAlberT and @rubo77 's answers might not work for you since one can't sudo >>
. A similarly simple solution, then, would be to use tee --append
(or, on MacOS, tee -a
):
LINE='include "/configs/projectname.conf"'
FILE=lighttpd.conf
grep -qF "$LINE" "$FILE" || echo "$LINE" | sudo tee --append "$FILE"
There is an unnecessary hashtag; change the code to this:
var e = document.getElementById("ticket_category_clone").value;
The Java idiom for function-pointer-like functionality is an an anonymous class implementing an interface, e.g.
Collections.sort(list, new Comparator<MyClass>(){
public int compare(MyClass a, MyClass b)
{
// compare objects
}
});
Update: the above is necessary in Java versions prior to Java 8. Now we have much nicer alternatives, namely lambdas:
list.sort((a, b) -> a.isGreaterThan(b));
and method references:
list.sort(MyClass::isGreaterThan);
An alternative is Joda-Time.
Use DateTime
DateTime date = new DateTime(new Date());
date.isBeforeNow();
or
date.isAfterNow();
Use Advanced BAT to EXE Converter from http://www.battoexeconverter.com
This will allow you to embed any additional binaries with your batch file in to one stand alone completely silent EXE and its freeware
Not Found Exceptions
Sometimes you may wish to throw an exception if a model is not found. This is particularly useful in routes or controllers. The findOrFail
and firstOrFail
methods will retrieve the first result of the query. However, if no result is found, a Illuminate\Database\Eloquent\ModelNotFoundException
will be thrown:
$model = App\Flight::findOrFail(1);
$model = App\Flight::where('legs', '>', 100)->firstOrFail();
If the exception is not caught, a 404 HTTP response is automatically sent back to the user. It is not necessary to write explicit checks to return 404 responses when using these methods:
Route::get('/api/flights/{id}', function ($id) {
return App\Flight::findOrFail($id);
});
Another way:
var testStr = "This is a test";
if(testStr.contains("test")){
alert("String Found");
}
** Tested on Firefox, Safari 6 and Chrome 36 **
The best way to do this with modern browsers would be to make use of Viewport-percentage Lengths, falling back to regular percentage lengths for browsers which do not support those units.
Viewport-percentage lengths are based upon the length of the viewport itself. The two units we will use here are vh
(viewport height) and vw
(viewport width). 100vh
is equal to 100% of the height of the viewport, and 100vw
is equal to 100% of the width of the viewport.
Assuming the following HTML:
<body>
<div></div>
</body>
You can use the following:
html, body, div {
/* Height and width fallback for older browsers. */
height: 100%;
width: 100%;
/* Set the height to match that of the viewport. */
height: 100vh;
/* Set the width to match that of the viewport. */
width: 100vw;
/* Remove any browser-default margins. */
margin: 0;
}
Here is a JSFiddle demo which shows the div
element filling both the height and width of the result frame. If you resize the result frame, the div
element resizes accordingly.
You can use .addAll()
to add the elements of the second list to the first:
array1.addAll(array2);
Edit: Based on your clarification above ("i want a single String in the new Arraylist which has both name and number."), you would want to loop through the first list and append the item from the second list to it.
Something like this:
int length = array1.size();
if (length != array2.size()) { // Too many names, or too many numbers
// Fail
}
ArrayList<String> array3 = new ArrayList<String>(length); // Make a new list
for (int i = 0; i < length; i++) { // Loop through every name/phone number combo
array3.add(array1.get(i) + " " + array2.get(i)); // Concat the two, and add it
}
If you put in:
array1 : ["a", "b", "c"]
array2 : ["1", "2", "3"]
You will get:
array3 : ["a 1", "b 2", "c 3"]
You can try this also for setting the class in a div section:
/** CSS **/
.content {
background: url('http://www.gransebryan.com/wp-content/uploads/2016/03/bryan-ganzon-granse-who.png') center no-repeat;
}
.displaybg {
text-align: center;
color: #FFF;
}
_x000D_
<div class="content">
<p class="displaybg">This is just a test</p>
</div>
_x000D_
Try:
.Formula = "='" & strProjectName & "'!" & Cells(2, 7).Address
If your worksheet name (strProjectName
) has spaces, you need to include the single quotes in the formula string.
If this does not resolve it, please provide more information about the specific error or failure.
Update
In comments you indicate you're replacing spaces with underscores. Perhaps you are doing something like:
strProjectName = Replace(strProjectName," ", "_")
But if you're not also pushing that change to the Worksheet.Name
property, you can expect these to happen:
#REF
errorThe reason for both is that you are passing a reference to a worksheet that doesn't exist, which is why you get the #REF error. The file dialog is an attempt to let you correct that reference, by pointing to a file wherein that sheet name does exist. When you cancel out, the #REF error is expected.
So you need to do:
Worksheets(strProjectName).Name = Replace(strProjectName," ", "_")
strProjectName = Replace(strProjectName," ", "_")
Then, your formula should work.
As JoshC said, the class .sr-only
is used to visually hide the information used for screen readers only. But not only to hide labels. You might consider hiding various other elements such as "skip to main content" link, icons which have an alternative texts etc.
BTW. you can also use .sr-only sr-only-focusable
if you need the element to become visible when focused e.g. "skip to main content"
If you want make your website even more accessible I recommend to start here:
Why?
According to the World Health Organization, 285 million people have vision impairments. So making a website accessible is important.
IMPORTANT: Avoid treating disabled users differently. Generally speaking try to avoid developing a different content for different groups of users. Instead try to make accessible the existing content so that it simply works out-of-the-box and for all not specifically targeting e.g. screen readers. In other words don't try to reinvent the wheel. Otherwise the resulting accessibility will often be worse than if there was nothing developed at all. We developers should not assume how those users will use our website. So be very careful when you need to develop such solutions. Obviously a "skip link" is a good example of such content if it's made visible when focused. But there many bad examples too. Such would be hiding from a screen reader a "zoom" button on the map assuming that it has no relevance to blind users. But surprisingly, a zoom function indeed is used among blind users! They like to download images like many other users do (even in high resolution), for sending them to somebody else or for using them in some other context. Source - Read more @ADG: Bad ARIA practices
plot(t)
is in this case the same as
plot(t[[1]], t[[2]])
As the error message says, x and y differ in length and that is because you plot a list with length 4 against 1
:
> length(t)
[1] 4
> length(1)
[1] 1
In your second example you plot a list with elements named x
and y
, both vectors of length 2,
so plot
plots these two vectors.
Edit:
If you want to plot lines use
plot(t, type="l")
to_char
actually lets you pull out the Year and month in one fell swoop!
select to_char(date('2014-05-10'),'Mon-YY') as year_month; --'May-14'
select to_char(date('2014-05-10'),'YYYY-MM') as year_month; --'2014-05'
or in the case of the user's example above:
select to_char(date,'YY-Mon') as year_month
sum("Sales") as "Sales"
from some_table
group by 1;
You can only call instance method like do()
(which is an illegal method name, incidentally) against an instance of the class:
public static void main(String[] args){
new Foo().doSomething();
}
public void doSomething(){}
Alternatively, make doSomething()
static as well, if that works for your design.
Use String.matches(), like:
String myString = "qwerty123456";
System.out.println(myString.matches("[A-Za-z0-9]+"));
That may not be the absolute "fastest" possible approach. But in general there's not much point in trying to compete with the people who write the language's "standard library" in terms of performance.
If you are looking to add or remove class accordingly if the url contains certain params or not .This is what you can do
<a th:href="@{/admin/home}" th:class="${#httpServletRequest.requestURI.contains('home')} ? 'nav-link active' : 'nav-link'" >
If the url contains 'home' then active class will be added and vice versa.
I tried all the answers above to install Python 3.4.4. The installation of python worked, but PIP would not be installed and nothing I could do to make it work. I was using Mac OSX Mojave, which cause some issues with zlib, openssl.
What not to do:
Solution:
p.s: You don't have to uninstall your other version of Python on your system.
Edit:
I found a much much much better solution that work on MacOSX, Windows, Linux, etc.
conda init
conda create -n [NameOfYour VirtualEnvironment] python=3.4.4
conda info --envs
conda activate [The name of your virtual environment that was shown with the command at step 5]
Use this:
Format(Now, "MMMM dd, yyyy")
More: Format Function
Change the value after the page loads
$('#data').val('').change();
Similar to Yada's answer: $request->url() will also work if you are injecting Illuminate\Http\Request
Edit: The difference between fullUrl and url is the fullUrl includes your query parameters
There is a tablePlugin for jspdf it expects array of objects and displays that data as a table. You can style the text and headers with little changes in the code. It is open source and also has examples for you to get started with.
This is probably too late, but I had a similar problem with dates that I wanted entered into cells from a text variable. Inevitably, it converted my variable text value to a date. What I finally had to do was concatentate a ' to the string variable and then put it in the cell like this:
prvt_rng_WrkSht.Cells(prvt_rng_WrkSht.Rows.Count, cnst_int_Col_Start_Date).Formula = "'" & _
param_cls_shift.Start_Date (string property of my class)
You can try:
db.execSQL("UPDATE DB_TABLE SET YOUR_COLUMN='newValue' WHERE id=6 ");
Or
ContentValues newValues = new ContentValues();
newValues.put("YOUR_COLUMN", "newValue");
db.update("YOUR_TABLE", newValues, "id=6", null);
Or
ContentValues newValues = new ContentValues();
newValues.put("YOUR_COLUMN", "newValue");
String[] args = new String[]{"user1", "user2"};
db.update("YOUR_TABLE", newValues, "name=? OR name=?", args);
The link below, gives a very good tutorial, about playing mp3 files from a windows form with c#:
http://www.daniweb.com/software-development/csharp/threads/292695/playing-mp3-in-c
This link will lead you to a topic, which contains a lot information about how to play an mp3 song, using Windows forms. It also contains a lot of other projects, trying to achieve the same thing:
For example use this code for .mp3:
WMPLib.WindowsMediaPlayer wplayer = new WMPLib.WindowsMediaPlayer();
wplayer.URL = "My MP3 file.mp3";
wplayer.Controls.Play();
Then only put the wplayer.Controls.Play(); in the Button_Click event.
For example use this code for .wav:
System.Media.SoundPlayer player = new System.Media.SoundPlayer();
player.SoundLocation = "Sound.wav";
player.Play();
Put the player.Play(); in the Button_Click event, and it will work.
I found you can do this easily via the Cloud Flare service.
Set up a bucket, enable webhosting on the bucket and point the desired CNAME to that endpoint via Cloudflare... and pay for the service of course... but $5-$20 VS $600 is much easier to stomach.
Full detail here: https://www.engaging.io/easy-way-to-configure-ssl-for-amazon-s3-bucket-via-cloudflare/
If you are on Ubuntu you don't need to write any other code except your Python file's code , Here are the Steps :-
Hope this helps .
import java.util.*;
public class Lru {
public static <K,V> Map<K,V> lruCache(final int maxSize) {
return new LinkedHashMap<K, V>(maxSize*4/3, 0.75f, true) {
private static final long serialVersionUID = -3588047435434569014L;
@Override
protected boolean removeEldestEntry(Map.Entry<K, V> eldest) {
return size() > maxSize;
}
};
}
public static void main(String[] args ) {
Map<Object, Object> lru = Lru.lruCache(2);
lru.put("1", "1");
lru.put("2", "2");
lru.put("3", "3");
System.out.println(lru);
}
}
That's not exactly what I had in mind. What do you do if you have a generic type to only be known at runtime?
public MyDTO toObject() {
try {
var methodInfo = MethodBase.GetCurrentMethod();
if (methodInfo.DeclaringType != null) {
var fullName = methodInfo.DeclaringType.FullName + "." + this.dtoName;
Type type = Type.GetType(fullName);
if (type != null) {
var obj = JsonConvert.DeserializeObject(payload);
//var obj = JsonConvert.DeserializeObject<type.MemberType.GetType()>(payload); // <--- type ?????
...
}
}
// Example for java.. Convert this to C#
return JSONUtil.fromJSON(payload, Class.forName(dtoName, false, getClass().getClassLoader()));
} catch (Exception ex) {
throw new ReflectInsightException(MethodBase.GetCurrentMethod().Name, ex);
}
}
In case if Parent class is singleton use following way:
Parent.Child childObject = (Parent.getInstance()).new Child();
where getInstance()
will return parent class singleton object.
Along the lines of @halfcube's suggestion, this works really well:
brew install https://raw.githubusercontent.com/Homebrew/homebrew-core/8cf29889111b44fd797c01db3cf406b0b14e858c/Formula/postgresql.rb
In this situation implode($array,','); will works, becasue you want the values only. In PHP 5.6 working for me.
If you want to implode the keys and the values in one like :
blogTags_id: 1
tag_name: google
$toImplode=array();
foreach($array as $key => $value) {
$toImplode[]= "$key: $value".'<br>';
}
$imploded=implode('',$toImplode);
Sorry, I understand wrong, becasue the title "Implode data from a multi-dimensional array". Well, my answer still answer it somehow, may help someone, so will not delete it.
The commands are adduser
and addgroup
.
Here's a template for Docker you can use in busybox environments (alpine) as well as Debian-based environments (Ubuntu, etc.):
ENV USER=docker
ENV UID=12345
ENV GID=23456
RUN adduser \
--disabled-password \
--gecos "" \
--home "$(pwd)" \
--ingroup "$USER" \
--no-create-home \
--uid "$UID" \
"$USER"
Note the following:
--disabled-password
prevents prompt for a password--gecos ""
circumvents the prompt for "Full Name" etc. on Debian-based systems--home "$(pwd)"
sets the user's home to the WORKDIR. You may not want this.--no-create-home
prevents cruft getting copied into the directory from /etc/skel
The usage description for these applications is missing the long flags present in the code for adduser and addgroup.
The following long-form flags should work both in alpine as well as debian-derivatives:
BusyBox v1.28.4 (2018-05-30 10:45:57 UTC) multi-call binary.
Usage: adduser [OPTIONS] USER [GROUP]
Create new user, or add USER to GROUP
--home DIR Home directory
--gecos GECOS GECOS field
--shell SHELL Login shell
--ingroup GRP Group (by name)
--system Create a system user
--disabled-password Don't assign a password
--no-create-home Don't create home directory
--uid UID User id
One thing to note is that if --ingroup
isn't set then the GID is assigned to match the UID. If the GID corresponding to the provided UID already exists adduser will fail.
BusyBox v1.28.4 (2018-05-30 10:45:57 UTC) multi-call binary.
Usage: addgroup [-g GID] [-S] [USER] GROUP
Add a group or add a user to a group
--gid GID Group id
--system Create a system group
I discovered all of this while trying to write my own alternative to the fixuid project for running containers as the hosts UID/GID.
My entrypoint helper script can be found on GitHub.
The intent is to prepend that script as the first argument to ENTRYPOINT
which should cause Docker to infer UID and GID from a relevant bind mount.
An environment variable "TEMPLATE" may be required to determine where the permissions should be inferred from.
(At the time of writing I don't have documentation for my script. It's still on the todo list!!)
There are three options:
Using jQuery (download from jQuery website) - jquery.com
var lines = $("#ptest").val().split("\n");
return lines.length;
Using Regex
var lines = str.split(/\r\n|\r|\n/);
return lines.length;
Or, a recreation of a for each loop
var length = 0;
for(var i = 0; i < str.length; ++i){
if(str[i] == '\n') {
length++;
}
}
return length;
Install msysgit
There are several downloads:
This also installs a Cygwin bash shell, so you can use the git
in a nicer shell (than cmd.exe), and also includes git-gui (accessible via git gui
command, or the Start > All Programs > Git
menu)
Use the git-osx-installer, or you can also install from source
Install git
using your native package manager. For example, on Debian (or Ubuntu):
apt-get install git-core
Or on Mac OS X, via MacPorts:
sudo port install git-core+bash_completion+doc
…or fink:
fink install git
…or Homebrew:
brew install git
On Red Hat based distributions, such as Fedora:
yum install git
In Cygwin the Git package can be found under the "devel" section
In Mac OS X, if you have the Developer Tools installed, you can compile Git from source very easily. Download the latest version of Git as a .tar.bz
or .tar.gz
from http://git-scm.com/, and extract it (double click in Finder)
On Linux/BSD/etc. it should be much the same. For example, in Debian (and Ubuntu), you need to install the build-essential
package via apt
.
Then in a Terminal, cd
to where you extracted the files (Running cd ~/Downloads/git*/
should work), and then run..
./configure && make && sudo make install
This will install Git into the default place (/usr/local
- so git
will be in /usr/local/bin/git
)
It will prompt you to enter your password (for sudo
), this is so it can write to the /usr/local/
directory, which can only be accessed by the "root" user so sudo is required!
If you with to install it somewhere separate (so Git's files aren't mixed in with other tools), use --prefix
with the configure command:
./configure --prefix=/usr/local/gitpath
make
sudo make install
This will install the git
binary into /usr/local/bin/gitpath/bin/git
- so you don't have to type that every time you, you should add into your $PATH
by adding the following line into your ~/.profile
:
export PATH="${PATH}:/usr/local/bin/gitpath/bin/"
If you do not have sudo access, you can use --prefix=/Users/myusername/bin
and install into your home directory. Remember to add ~/bin/
to $PATH
The script x-git-update-to-latest-version automates a lot of this:
This script updates my local clone of the git repo (localy at
~/work/track/git
), and then configures, installs (at/usr/local/git
-git describe
) and updates the/usr/local/git
symlink.This way, I can have
/usr/local/git/bin
in myPATH
and I'm always using the latest version.The latest version of this script also installs the man pages. You need to tweak your
MANPATH
to include the/usr/local/git/share/man
directory.
By design, getRequestURL()
gives you the full URL, missing only the query string.
In HttpServletRequest
, you can get individual parts of the URI using the methods below:
// Example: http://myhost:8080/people?lastname=Fox&age=30
String uri = request.getScheme() + "://" + // "http" + "://
request.getServerName() + // "myhost"
":" + // ":"
request.getServerPort() + // "8080"
request.getRequestURI() + // "/people"
"?" + // "?"
request.getQueryString(); // "lastname=Fox&age=30"
.getScheme()
will give you "https"
if it was a https://domain
request..getServerName()
gives domain
on http(s)://domain
..getServerPort()
will give you the port.String uri = request.getScheme() + "://" +
request.getServerName() +
("http".equals(request.getScheme()) && request.getServerPort() == 80 || "https".equals(request.getScheme()) && request.getServerPort() == 443 ? "" : ":" + request.getServerPort() ) +
request.getRequestURI() +
(request.getQueryString() != null ? "?" + request.getQueryString() : "");
This snippet above will get the full URI, hiding the port if the default one was used, and not adding the "?"
and the query string if the latter was not provided.
Note, that if your request passes through a proxy, you need to look at the X-Forwarded-Proto
header since the scheme might be altered:
request.getHeader("X-Forwarded-Proto")
Also, a common header is X-Forwarded-For
, which show the original request IP instead of the proxys IP.
request.getHeader("X-Forwarded-For")
If you are responsible for the configuration of the proxy/load balancer yourself, you need to ensure that these headers are set upon forwarding.
You could add your JSON file as an external using webpack config. Then you can load up that json in any of your react modules.
Take a look at this answer
Iterator iterator = meMap.keySet().iterator();
while(iterator.hasNext() ){
//get key
String key=(String)iterator.next();
//toast value
Toast.makeText(getBaseContext(),""+(String)meMap.get(key),Toast.LENGTH_SHORT).show();
}
If you want to do it fast and don't want to lose references and listeners use: .insertAdjacentHTML();
"It does not reparse the element it is being used on and thus it does not corrupt the existing elements inside the element. This, and avoiding the extra step of serialization make it much faster than direct innerHTML manipulation."
Supported on all mainline browsers (IE6+, FF8+,All Others and Mobile): http://caniuse.com/#feat=insertadjacenthtml
Example from https://developer.mozilla.org/en-US/docs/Web/API/Element/insertAdjacentHTML
// <div id="one">one</div>
var d1 = document.getElementById('one');
d1.insertAdjacentHTML('afterend', '<div id="two">two</div>');
// At this point, the new structure is:
// <div id="one">one</div><div id="two">two</div>
if you have parent element than your parent element must have overflow: hidden; property because if your children content is getting oveflowed from parent border than your border will be visible .otherwise your borderradius is working but it is hide by your children content.
.outer {
width: 200px;
height: 120px;
border: 1px solid black;
margin-left: 50px;
overflow: hidden;
border-radius: 30px;
}
.inner1 {
width: 100%;
height: 100%;
background-image: linear-gradient(#FF9933,white, green);
border: 1px solid black;
}
_x000D_
<div class="outer">
<div class="inner1">
</div>
</div>
_x000D_
I had to connect to VPN for the publish script to successfully deploy to the DB.
I set my user account as the owner of the /usr/local directory, so that can just issue normal commands in there.
sudo chown -R $USER /usr/local
Reference: http://howtonode.org/introduction-to-npm
You cannot add methods to an existing type unless the existing type is marked as partial, you can only add methods that appear to be a member of the existing type through extension methods. Since this is the case you cannot add static methods to the type itself since extension methods use instances of that type.
There is nothing stopping you from creating your own static helper method like this:
static class DateTimeHelper
{
public static DateTime Tomorrow
{
get { return DateTime.Now.AddDays(1); }
}
}
Which you would use like this:
DateTime tomorrow = DateTimeHelper.Tomorrow;
use the below command to set the port number in node process while running node JS programme:
set PORT =3000 && node file_name.js
The set port can be accessed in the code as
process.env.PORT
If the entire program should stop use sys.exit() otherwise just use an empty return.
Note: The answer below is written from the perspective of Windows PowerShell.
However, it applies to the cross-platform PowerShell Core edition (v6+) as well, except that the latter - commendably - consistently defaults to BOM-less UTF-8 character encoding, which is the most widely compatible one across platforms and cultures..
To complement bigtv's helpful answer helpful answer with a more concise alternative and background information:
# > $file is effectively the same as | Out-File $file
# Objects are written the same way they display in the console.
# Default character encoding is UTF-16LE (mostly 2 bytes per char.), with BOM.
# Use Out-File -Encoding <name> to change the encoding.
$env:computername > $file
# Set-Content calls .ToString() on each object to output.
# Default character encoding is "ANSI" (culture-specific, single-byte).
# Use Set-Content -Encoding <name> to change the encoding.
# Use Set-Content rather than Add-Content; the latter is for *appending* to a file.
$env:computername | Set-Content $file
When outputting to a text file, you have 2 fundamental choices that use different object representations and, in Windows PowerShell (as opposed to PowerShell Core), also employ different default character encodings:
Out-File
(or >
) / Out-File -Append
(or >>
):
Suitable for output objects of any type, because PowerShell's default output formatting is applied to the output objects.
The default encoding, which can be changed with the -Encoding
parameter, is Unicode
, which is UTF-16LE in which most characters are encoded as 2 bytes. The advantage of a Unicode encoding such as UTF-16LE is that it is a global alphabet, capable of encoding all characters from all human languages.
>
and >>
, via the $PSDefaultParameterValues
preference variable, taking advantage of the fact that >
and >>
are now effectively aliases of Out-File
and Out-File -Append
. To change to UTF-8, for instance, use:$PSDefaultParameterValues['Out-File:Encoding']='UTF8'
For writing strings and instances of types known to have meaningful string representations, such as the .NET primitive data types (Booleans, integers, ...).
.psobject.ToString()
method is called on each output object, which results in meaningless representations for types that don't explicitly implement a meaningful representation; [hashtable]
instances are an example:@{ one = 1 } | Set-Content t.txt
writes literal System.Collections.Hashtable
to t.txt
, which is the result of @{ one = 1 }.ToString()
.The default encoding, which can be changed with the -Encoding
parameter, is Default
, which is the system's "ANSI" code page, a the single-byte culture-specific legacy encoding for non-Unicode applications, most commonly Windows-1252.
Note that the documentation currently incorrectly claims that ASCII is the default encoding.
Note that Add-Content
's purpose is to append content to an existing file, and it is only equivalent to Set-Content
if the target file doesn't exist yet.
Furthermore, the default or specified encoding is blindly applied, irrespective of the file's existing contents' encoding.
Out-File
/ >
/ Set-Content
/ Add-Content
all act culture-sensitively, i.e., they produce representations suitable for the current culture (locale), if available (though custom formatting data is free to define its own, culture-invariant representation - see Get-Help about_format.ps1xml
).
This contrasts with PowerShell's string expansion (string interpolation in double-quoted strings), which is culture-invariant - see this answer of mine.
As for performance: Since Set-Content
doesn't have to apply default formatting to its input, it performs better.
As for the OP's symptom with Add-Content
:
Since $env:COMPUTERNAME
cannot contain non-ASCII characters, Add-Content
's output, using "ANSI" encoding, should not result in ?
characters in the output, and the likeliest explanation is that the ?
were part of the preexisting content in output file $file
, which Add-Content
appended to.
In some websites, XMLHttpRequest
may send you something like <script src="#"></srcipt>
. In that case, try using a HTML document like the script under:
<html>
<body>
<iframe src="website.com"></iframe>
<script src="your_JS"></script>
</body>
</html>
Now you can use JS to get some text out of the HTML, such as getElementbyId
.
But this may not work for some websites with cross-domain blocking.
As I stated in comment i would use a box layout for this.
JPanel panel = new JPanel();
panel.setLayout(new BoxLayout());
JButton button = new JButton("Button1");
button.setAlignmentX(Component.CENTER_ALIGNMENT);
panel.add(button);
button = new JButton("Button2");
button.setAlignmentX(Component.CENTER_ALIGNMENT);
panel.add(button);
button = new JButton("Button3");
button.setAlignmentX(Component.CENTER_ALIGNMENT);
panel.add(button);
add(panel);
Try the below two links keep in header tag.
<link href="http://maxcdn.bootstrapcdn.com/font-awesome/4.1.0/css/font-awesome.min.css" rel="stylesheet">
Getting the Icons from the below link :
<link rel="stylesheet" href="http://fortawesome.github.io/Font-Awesome/3.2.1/assets/font-awesome/css/font-awesome.css">
GitHub Repositories are used to store all the files, folders and other resources which you care about.
Git Project : It is also one of the Resource in Git Repository and main use of it is to manage the projects with a visual board. If you create a project in Git Repository it create a visual board like a Kanban board to manage the project.
In this way, you can have multiple projects in a repository.
- Another Update -
Since Twitter Bootstrap version 2.0 - which saw the removal of the .container-fluid
class - it has not been possible to implement a two column fixed-fluid layout using just the bootstrap classes - however I have updated my answer to include some small CSS changes that can be made in your own CSS code that will make this possible
It is possible to implement a fixed-fluid structure using the CSS found below and slightly modified HTML code taken from the Twitter Bootstrap Scaffolding : layouts documentation page:
<div class="container-fluid fill">
<div class="row-fluid">
<div class="fixed"> <!-- we want this div to be fixed width -->
...
</div>
<div class="hero-unit filler"> <!-- we have removed spanX class -->
...
</div>
</div>
</div>
/* CSS for fixed-fluid layout */
.fixed {
width: 150px; /* the fixed width required */
float: left;
}
.fixed + div {
margin-left: 150px; /* must match the fixed width in the .fixed class */
overflow: hidden;
}
/* CSS to ensure sidebar and content are same height (optional) */
html, body {
height: 100%;
}
.fill {
min-height: 100%;
position: relative;
}
.filler:after{
background-color:inherit;
bottom: 0;
content: "";
height: auto;
min-height: 100%;
left: 0;
margin:inherit;
right: 0;
position: absolute;
top: 0;
width: inherit;
z-index: -1;
}
I have kept the answer below - even though the edit to support 2.0 made it a fluid-fluid solution - as it explains the concepts behind making the sidebar and content the same height (a significant part of the askers question as identified in the comments)
Update As pointed out by @JasonCapriotti in the comments, the original answer to this question (created for v1.0) did not work in Bootstrap 2.0. For this reason, I have updated the answer to support Bootstrap 2.0
To ensure that the main content fills at least 100% of the screen height, we need to set the height of the html
and body
to 100% and create a new css class called .fill
which has a minimum-height of 100%:
html, body {
height: 100%;
}
.fill {
min-height: 100%;
}
We can then add the .fill
class to any element that we need to take up 100% of the sceen height. In this case we add it to the first div:
<div class="container-fluid fill">
...
</div>
To ensure that the Sidebar and the Content columns have the same height is very difficult and unnecessary. Instead we can use the ::after
pseudo selector to add a filler
element that will give the illusion that the two columns have the same height:
.filler::after {
background-color: inherit;
bottom: 0;
content: "";
right: 0;
position: absolute;
top: 0;
width: inherit;
z-index: -1;
}
To make sure that the .filler
element is positioned relatively to the .fill
element we need to add position: relative
to .fill
:
.fill {
min-height: 100%;
position: relative;
}
And finally add the .filler
style to the HTML:
HTML
<div class="container-fluid fill">
<div class="row-fluid">
<div class="span3">
...
</div>
<div class="span9 hero-unit filler">
...
</div>
</div>
</div>
Notes
right: 0
to left: 0
.Python classes are themselves objects - as in instance - of their meta-class.
The default metaclass, which is applied when when you determine classes as:
class foo:
...
meta class are used to apply some rule to an entire set of classes. For example, suppose you're building an ORM to access a database, and you want records from each table to be of a class mapped to that table (based on fields, business rules, etc..,), a possible use of metaclass is for instance, connection pool logic, which is share by all classes of record from all tables. Another use is logic to to support foreign keys, which involves multiple classes of records.
when you define metaclass, you subclass type, and can overrided the following magic methods to insert your logic.
class somemeta(type):
__new__(mcs, name, bases, clsdict):
"""
mcs: is the base metaclass, in this case type.
name: name of the new class, as provided by the user.
bases: tuple of base classes
clsdict: a dictionary containing all methods and attributes defined on class
you must return a class object by invoking the __new__ constructor on the base metaclass.
ie:
return type.__call__(mcs, name, bases, clsdict).
in the following case:
class foo(baseclass):
__metaclass__ = somemeta
an_attr = 12
def bar(self):
...
@classmethod
def foo(cls):
...
arguments would be : ( somemeta, "foo", (baseclass, baseofbase,..., object), {"an_attr":12, "bar": <function>, "foo": <bound class method>}
you can modify any of these values before passing on to type
"""
return type.__call__(mcs, name, bases, clsdict)
def __init__(self, name, bases, clsdict):
"""
called after type has been created. unlike in standard classes, __init__ method cannot modify the instance (cls) - and should be used for class validaton.
"""
pass
def __prepare__():
"""
returns a dict or something that can be used as a namespace.
the type will then attach methods and attributes from class definition to it.
call order :
somemeta.__new__ -> type.__new__ -> type.__init__ -> somemeta.__init__
"""
return dict()
def mymethod(cls):
""" works like a classmethod, but for class objects. Also, my method will not be visible to instances of cls.
"""
pass
anyhow, those two are the most commonly used hooks. metaclassing is powerful, and above is nowhere near and exhaustive list of uses for metaclassing.
Subject to the caveats that have already been raised regarding spaces in names and other anomalies, the following code will at least handle 98% of names. (Note: messy SQL because I don't have a regex option in the database I use.)
**Warning: messy SQL follows:
create table parsname (fullname char(50), name1 char(30), name2 char(30), name3 char(30), name4 char(40));
insert into parsname (fullname) select fullname from ImportTable;
update parsname set name1 = substring(fullname, 1, locate(' ', fullname)),
fullname = ltrim(substring(fullname, locate(' ', fullname), length(fullname)))
where locate(' ', rtrim(fullname)) > 0;
update parsname set name2 = substring(fullname, 1, locate(' ', fullname)),
fullname = ltrim(substring(fullname, locate(' ', fullname), length(fullname)))
where locate(' ', rtrim(fullname)) > 0;
update parsname set name3 = substring(fullname, 1, locate(' ', fullname)),
fullname = ltrim(substring(fullname, locate(' ', fullname), length(fullname)))
where locate(' ', rtrim(fullname)) > 0;
update parsname set name4 = substring(fullname, 1, locate(' ', fullname)),
fullname = ltrim(substring(fullname, locate(' ', fullname), length(fullname)))
where locate(' ', rtrim(fullname)) > 0;
// fullname now contains the last word in the string.
select fullname as FirstName, '' as MiddleName, '' as LastName from parsname where fullname is not null and name1 is null and name2 is null
union all
select name1 as FirstName, name2 as MiddleName, fullname as LastName from parsname where name1 is not null and name3 is null
The code works by creating a temporary table (parsname) and tokenizing the fullname by spaces. Any names ending up with values in name3 or name4 are non-conforming and will need to be dealt with differently.
to find elements from last, use
<style>
ul li:nth-last-of-type(3n){ color:#a94442} /**/
</style>
try following to see all instances of python
whereis python
which python
Then remove all instances using:
sudo apt autoremove python
repeat sudo apt autoremove python(for all versions) that should do it, then install Anaconda and manage Pythons however you like if you need to reinstall it.
The Runnable
interface is another way in which you can implement multi-threading other than extending the Thread
class due to the fact that Java allows you to extend only one class.
You can however, use the new Thread(Runnable runnable) constructor, something like this:
private Thread thread = new Thread(new Runnable() {
public void run() {
final long start = mStartTime;
long millis = SystemClock.uptimeMillis() - start;
int seconds = (int) (millis / 1000);
int minutes = seconds / 60;
seconds = seconds % 60;
if (seconds < 10) {
mTimeLabel.setText("" + minutes + ":0" + seconds);
} else {
mTimeLabel.setText("" + minutes + ":" + seconds);
}
mHandler.postAtTime(this,
start + (((minutes * 60) + seconds + 1) * 1000));
}
});
thread.start();
Just as an FYI, here is my working code:
src_dir = "C:\\temp\\CSV\\"
target_dir = "C:\\temp\\output2\\"
keyword = "KEYWORD"
for f in os.listdir(src_dir):
file_name = os.path.join(src_dir, f)
out_file = os.path.join(target_dir, f)
with open(file_name, "r+") as fi, open(out_file, "w") as fo:
for line in fi:
if keyword not in line:
fo.write(line)
Thanks again to everyone for all the great feedback!
To fix your code you can simply change [Cov]
to Cov.values
, the first parameter of pd.DataFrame
will become a multi-dimensional numpy
array:
Cov = pd.read_csv("path/to/file.txt", sep='\t')
Frame=pd.DataFrame(Cov.values, columns = ["Sequence", "Start", "End", "Coverage"])
Frame.to_csv("path/to/file.txt", sep='\t')
But the smartest solution still is use pd.read_excel
with header=None
and names=columns_list
.
Short of using 12c overflow using the CLOB and substr will also work
rtrim(dbms_lob.substr(XMLAGG(XMLELEMENT(E,column_name,',').EXTRACT('//text()') ORDER BY column_name).GetClobVal(),1000,1),',')
I've had a similar requirement: I needed to inject a Spring-managed repository bean into my Person
entity class ("entity" as in "something with an identity", for example an JPA entity). A Person
instance has friends, and for this Person
instance to return its friends, it shall delegate to its repository and query for friends there.
@Entity
public class Person {
private static PersonRepository personRepository;
@Id
@GeneratedValue
private long id;
public static void setPersonRepository(PersonRepository personRepository){
this.personRepository = personRepository;
}
public Set<Person> getFriends(){
return personRepository.getFriends(id);
}
...
}
.
@Repository
public class PersonRepository {
public Person get Person(long id) {
// do database-related stuff
}
public Set<Person> getFriends(long id) {
// do database-related stuff
}
...
}
So how did I inject that PersonRepository
singleton into the static field of the Person
class?
I created a @Configuration
, which gets picked up at Spring ApplicationContext construction time. This @Configuration
gets injected with all those beans that I need to inject as static fields into other classes. Then with a @PostConstruct
annotation, I catch a hook to do all static field injection logic.
@Configuration
public class StaticFieldInjectionConfiguration {
@Inject
private PersonRepository personRepository;
@PostConstruct
private void init() {
Person.setPersonRepository(personRepository);
}
}
I had the same error message but the solution is different.
The compiler parses the file from top to bottom.
Make sure a struct is defined BEFORE using it into another:
typedef struct
{
char name[50];
wheel_t wheels[4]; //wrong, wheel_t is not defined yet
} car_t;
typedef struct
{
int weight;
} wheel_t;
You need a dict
:
my_dict = {'cheese': 'cake'}
Example code (from the docs):
>>> a = dict(one=1, two=2, three=3)
>>> b = {'one': 1, 'two': 2, 'three': 3}
>>> c = dict(zip(['one', 'two', 'three'], [1, 2, 3]))
>>> d = dict([('two', 2), ('one', 1), ('three', 3)])
>>> e = dict({'three': 3, 'one': 1, 'two': 2})
>>> a == b == c == d == e
True
You can read more about dictionaries here.
I've been able to fix this using the touch-action
css property on individual elements. Try setting touch-action: manipulation;
on elements that are commonly clicked on, like links or buttons.
Traceback (most recent call last):
File "tkwindowwithlabel5.py", line 23, in <module>
main()
File "tkwindowwithlabel5.py", line 16, in main
window.resizeable(width = True, height =True)
File "/usr/lib/python3.4/tkinter/__init__.py", line 1935, in
__getattr__
return getattr(self.tk, attr)
AttributeError: 'tkapp' object has no attribute 'resizeable'
is what you will get with the first answer. tk does support min and max size
window.minsize(width = X, height = x)
window.maxsize(width = X, height = x)
i figured it out but just trying the first one. using python3 with tk.
Below is the relevant information from the link which Zaki provided.
Generate a 2048-bit RSA private key
$ openssl genrsa -out private_key.pem 2048
Convert private Key to PKCS#8 format (so Java can read it)
$ openssl pkcs8 -topk8 -inform PEM -outform DER -in private_key.pem -out private_key.der -nocrypt
Output public key portion in DER format (so Java can read it)
$ openssl rsa -in private_key.pem -pubout -outform DER -out public_key.der
import java.io.*;
import java.nio.*;
import java.security.*;
import java.security.spec.*;
public class PrivateKeyReader {
public static PrivateKey get(String filename)
throws Exception {
byte[] keyBytes = Files.readAllBytes(Paths.get(filename));
PKCS8EncodedKeySpec spec =
new PKCS8EncodedKeySpec(keyBytes);
KeyFactory kf = KeyFactory.getInstance("RSA");
return kf.generatePrivate(spec);
}
}
import java.io.*;
import java.nio.*;
import java.security.*;
import java.security.spec.*;
public class PublicKeyReader {
public static PublicKey get(String filename)
throws Exception {
byte[] keyBytes = Files.readAllBytes(Paths.get(filename));
X509EncodedKeySpec spec =
new X509EncodedKeySpec(keyBytes);
KeyFactory kf = KeyFactory.getInstance("RSA");
return kf.generatePublic(spec);
}
}
It says what it means:
make your class non-static:
public class employee
{
NameValueCollection appSetting = ConfigurationManager.AppSettings;
}
or the member static:
public static class employee
{
static NameValueCollection appSetting = ConfigurationManager.AppSettings;
}
Import-Csv $path | Foreach-Object {
foreach ($property in $_.PSObject.Properties)
{
doSomething $property.Name, $property.Value
}
}
Create the SqlParamObject which would give you control to access methods on the parameters
:
SqlParameter param = new SqlParameter();
SET the Name for your paramter (it should b same as you would have declared a variable to hold the value in your DataBase)
: param.ParameterName = "@yourParamterName";
Clear the value holder to hold you output data
: param.Value = 0;
Set the Direction of your Choice (In your case it should be Output)
: param.Direction = System.Data.ParameterDirection.Output;
As I wrote in my comment, the solution to your problem is to write the following:
Set hyperLinkText = hprlink.Range
Set
is needed because TextRange
is a class, so hyperLinkText
is an object; as such, if you want to assign it, you need to make it point to the actual object that you need.
Current version:
Settings
(Preferences
on Mac) | Build, Execution, Deployment
| Compiler
|
Build process heap size.
Older versions:
Settings
(Preferences
on Mac) | Compiler
| Java Compiler
| Maximum heap size.
Compiler runs in a separate JVM by default so IDEA heap settings that you set in idea.vmoptions
have no effect on the compiler.
IMHO most compatible with older browsers
Array.prototype.inArray = function( needle ){
return Array(this).join(",").indexOf(needle) >-1;
}
var foods = ["Cheese","Onion","Pickle","Ham"];
test = foods.inArray("Lemon");
console.log( "Lemon is " + (test ? "" : "not ") + "in the list." );
By turning an Array copy in to a CSV string, you can test the string in older browsers.
CSS cannot disable the textbox, you can however turn off display or visibility.
display: none;
visibility: hidden;
Or you can also set the HTMLattribute:
disabled="disabled"
If we have a single server we can directly include it in the proxy_pass. But in case if we have many servers we use upstream to maintain the servers. Nginx will load-balance based on the incoming traffic.
To give some further info on top of current answers:
The contents of a node.js
file are currently concatenated, in a string-like way, to form a function body.
For example if you have a file test.js
:
// Amazing test file!
console.log('Test!');
Then node.js
will secretly concatenate a function that looks like:
function(require, __dirname, ... perhaps more top-level properties) {
// Amazing test file!
console.log('Test!');
}
The major thing to note, is that the resulting function is NOT an async function. So you cannot use the term await
directly inside of it!
But say you need to work with promises in this file, then there are two possible methods:
await
directly inside the functionawait
Option 1 requires us to create a new scope (and this scope can be async
, because we have control over it):
// Amazing test file!
// Create a new async function (a new scope) and immediately call it!
(async () => {
await new Promise(...);
console.log('Test!');
})();
Option 2 requires us to use the object-oriented promise API (the less pretty but equally functional paradigm of working with promises)
// Amazing test file!
// Create some sort of promise...
let myPromise = new Promise(...);
// Now use the object-oriented API
myPromise.then(() => console.log('Test!'));
It would be interesting to see node add support for top-level await
!
https://nodejs.org/en/download/releases/ [Download the specified version]
On Linux or Ubuntu you need to use the complete path.
For example
/home/ubuntu/.android/keystorname.keystore
In my case I was using ~
instead of /home/user/
. Using shorthands like the below does not work
~/.android/keystorname.keystore
./keystorename.keystore
My 2p...
string Serialise<T>(T serialisableObject)
{
var xmlSerializer = new XmlSerializer(serialisableObject.GetType());
using (var ms = new MemoryStream())
{
using (var xw = XmlWriter.Create(ms,
new XmlWriterSettings()
{
Encoding = new UTF8Encoding(false),
Indent = true,
NewLineOnAttributes = true,
}))
{
xmlSerializer.Serialize(xw,serialisableObject);
return Encoding.UTF8.GetString(ms.ToArray());
}
}
}
You can check for NaN by using var != var
. NaN
does not equal NaN
.
EDIT: This is probably by far the worst method. It's confusing, terrible for readability, and overall bad practice.
To understand pid files, refer this DOC
Some times there are certain applications that require additional support of extra plugins and utilities. So it keeps track of these utilities and plugin process running ids using this pid file for reference.
That is why whenever you restart an application all necessary plugins and dependant apps must be restarted since the pid file will become stale.
Try run the task with high privileges.
put a \ at the end of path in "start in folder" such as c:\temp\
I do not know why , but this works for me sometimes.
My silly reason was: Build Automatically was disabled!
I've had luck recovering the commit by looking at the reflog, which was located at .git/logs/HEAD
I then had to scoll down to the end of the file, and I found the commit I just lost.
You could try my (*heavily borrowed from various sites) recursive method to go through all JSON objects and JSON arrays until you find JSON elements. This example actually searches for a particular key and returns all values for all instances of that key. 'searchKey' is the key you are looking for.
ArrayList<String> myList = new ArrayList<String>();
myList = findMyKeyValue(yourJsonPayload,null,"A"); //if you only wanted to search for A's values
private ArrayList<String> findMyKeyValue(JsonElement element, String key, String searchKey) {
//OBJECT
if(element.isJsonObject()) {
JsonObject jsonObject = element.getAsJsonObject();
//loop through all elements in object
for (Map.Entry<String,JsonElement> entry : jsonObject.entrySet()) {
JsonElement array = entry.getValue();
findMyKeyValue(array, entry.getKey(), searchKey);
}
//ARRAY
} else if(element.isJsonArray()) {
//when an array is found keep 'key' as that is the array's name i.e. pass it down
JsonArray jsonArray = element.getAsJsonArray();
//loop through all elements in array
for (JsonElement childElement : jsonArray) {
findMyKeyValue(childElement, key, searchKey);
}
//NEITHER
} else {
//System.out.println("SKey: " + searchKey + " Key: " + key );
if (key.equals(searchKey)){
listOfValues.add(element.getAsString());
}
}
return listOfValues;
}
Below Kotlin code can help to you
Create Marker
for (i in arrayList.indices) {
val marker = googleMap!!.addMarker(
MarkerOptions().position(
LatLng(
arrayList[i].location_latitude!!.toDoubleOrNull()!!,
arrayList[i].location_latitude!!.toDoubleOrNull()!!
)
).title(arrayList[i].business_name)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.ic_marker))
)
marker.tag = i
}
Marker Click
googleMap!!.setOnMarkerClickListener { marker ->
Log.d(TAG, "Clicked on ${marker.tag}")
true
}
If you're using 0
and an empty string ''
and null
to designate undefined you've got a data problem. Just update the columns and fix your schema.
UPDATE pt.incentive_channel
SET pt.incentive_marketing = NULL
WHERE pt.incentive_marketing = '';
UPDATE pt.incentive_channel
SET pt.incentive_advertising = NULL
WHERE pt.incentive_marketing = '';
UPDATE pt.incentive_channel
SET pt.incentive_channel = NULL
WHERE pt.incentive_marketing = '';
This will make joining and selecting substantially easier moving forward.
If you are looking for where the project folder was created. I noticed when I typed in the git bash.
$ git init projectName
it will tell me, where the project folder is for that project.
Sort of solution using metatable...
local function preparetable(t)
setmetatable(t,{__newindex=function(self,k,v) rawset(self,v,true) end})
end
local workingtable={}
preparetable(workingtable)
table.insert(workingtable,123)
table.insert(workingtable,456)
if workingtable[456] then
...
end
Referring to man page man mkdir
for option -p
-p, --parents
no error if existing, make parent directories as needed
which will create all directories in a given path, if exists throws no error otherwise it creates all directories from left to right in the given path. Try the below command. the directories newdir
and anotherdir
doesn't exists before issuing this command
Correct Usage
mkdir -p /tmp/newdir/anotherdir
After executing the command you can see newdir
and anotherdir
created under /tmp. You can issue this command as many times you want, the command always have exit(0)
. Due to this reason most people use this command in shell scripts before using those actual paths.
An easy function
function time_difference($time_1, $time_2, $limit = null)
{
$val_1 = new DateTime($time_1);
$val_2 = new DateTime($time_2);
$interval = $val_1->diff($val_2);
$output = array(
"year" => $interval->y,
"month" => $interval->m,
"day" => $interval->d,
"hour" => $interval->h,
"minute" => $interval->i,
"second" => $interval->s
);
$return = "";
foreach ($output AS $key => $value) {
if ($value == 1)
$return .= $value . " " . $key . " ";
elseif ($value >= 1)
$return .= $value . " " . $key . "s ";
if ($key == $limit)
return trim($return);
}
return trim($return);
}
Use like
echo time_difference ($time_1, $time_2, "day");
Will return like 2 years 8 months 2 days