if mystring = USCAGoleta9311734.5021-120.1287855805
print substr(mystring,0,2)
would print US
where 0 is the start position and 2 is how meny chars to read
If your filename contains a dot (other than the one of the extension) then use this:
echo $filename | rev | cut -f 2- -d '.' | rev
Actually more sane sources are provided by http://suckless.org look at their sbase
repository:
git clone git://git.suckless.org/sbase
They are clearer, smarter, simpler and suckless, eg ls.c
has just 369 LOC
After that it will be easier to understand more complicated GNU code.
Common reasons for the error:
=
) instead of equality (==
/===
)foo() = 42
instead of passing arguments (foo(42)
) getFoo() = 42
instead of getFoo().theAnswer = 42
or array indexing getArray() = 42
instead of getArray()[0]= 42
In this particular case you want to use ==
(or better ===
- What exactly is Type Coercion in Javascript?) to check for equality (like if(one === "rock" && two === "rock")
, but it the actual reason you are getting the error is trickier.
The reason for the error is Operator precedence. In particular we are looking for &&
(precedence 6) and =
(precedence 3).
Let's put braces in the expression according to priority - &&
is higher than =
so it is executed first similar how one would do 3+4*5+6
as 3+(4*5)+6
:
if(one= ("rock" && two) = "rock"){...
Now we have expression similar to multiple assignments like a = b = 42
which due to right-to-left associativity executed as a = (b = 42)
. So adding more braces:
if(one= ( ("rock" && two) = "rock" ) ){...
Finally we arrived to actual problem: ("rock" && two)
can't be evaluated to l-value that can be assigned to (in this particular case it will be value of two
as truthy).
Note that if you'd use braces to match perceived priority surrounding each "equality" with braces you get no errors. Obviously that also producing different result than you'd expect - changes value of both variables and than do &&
on two strings "rock" && "rock"
resulting in "rock"
(which in turn is truthy) all the time due to behavior of logial &&:
if((one = "rock") && (two = "rock"))
{
// always executed, both one and two are set to "rock"
...
}
For even more details on the error and other cases when it can happen - see specification:
LeftHandSideExpression = AssignmentExpression
...
Throw a SyntaxError exception if the following conditions are all true:
...
IsStrictReference(lref) is true
and The Reference Specification Type explaining IsStrictReference:
... function calls are permitted to return references. This possibility is admitted purely for the sake of host objects. No built-in ECMAScript function defined by this specification returns a reference and there is no provision for a user-defined function to return a reference...
composer.phar can be ran on its own, no need to prefix it with php
. This should solve your problem (being in the difference of bash's $PATH and php's include_path).
Looks like a Windows Forms project that is trying to use a startup form but for some reason the project properties is set to startup being Main.
If you have enabled application framework you may not be able to see that Main is active (this is an invalid configuration).
Another alternative to use the exact json within javascript. As it is Javascript Object Notation you can just create your object directly with the json notation. If you store this in a .js file you can use the object in your application. This was a useful option for me when I had some static json data that I wanted to cache in a file separately from the rest of my app.
//Just hard code json directly within JS
//here I create an object CLC that represents the json!
$scope.CLC = {
"ContentLayouts": [
{
"ContentLayoutID": 1,
"ContentLayoutTitle": "Right",
"ContentLayoutImageUrl": "/Wasabi/Common/gfx/layout/right.png",
"ContentLayoutIndex": 0,
"IsDefault": true
},
{
"ContentLayoutID": 2,
"ContentLayoutTitle": "Bottom",
"ContentLayoutImageUrl": "/Wasabi/Common/gfx/layout/bottom.png",
"ContentLayoutIndex": 1,
"IsDefault": false
},
{
"ContentLayoutID": 3,
"ContentLayoutTitle": "Top",
"ContentLayoutImageUrl": "/Wasabi/Common/gfx/layout/top.png",
"ContentLayoutIndex": 2,
"IsDefault": false
}
]
};
I use Cygwin on Windows, so I use:
export EDITOR="emacs -nw"
The -nw
is for no-windows
, i.e. tell Emacs not to try and use X Window.
The Emacs keybindings don't work for me from a Windows shell, so I would only use this from a Cygwin shell... (rxvt is recommended.)
string stringToDecrypt = HttpContext.Current.Request.QueryString.ToString()
//change to string stringToDecrypt = HttpUtility.UrlDecode(HttpContext.Current.Request.QueryString.ToString())
I am just giving the code for two responsive divs side by side
*{
margin: 0;
padding: 0;
}
#parent {
display: flex;
justify-content: space-around;
}
#left {
border: 1px solid lightgray;
background-color: red;
width: 40%;
}
#right {
border: 1px solid lightgray;
background-color: green;
width: 40%;
}
_x000D_
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<div id="parent">
<div id="left">
lorem ipsum dolor sit emet
</div>
<div id="right">
lorem ipsum dolor sit emet
</div>
</div>
</body>
</html>
_x000D_
Much simpler code then most of the other solutions. Look for the text (case insensitive) and use CSS to hide/show the contents. Much better than storing a copy of the data.
Pass into this method the id of the select box, and id of the input containing a filter.
function FilterSelectList(selectListId, filterId)
{
var filter = $("#" + filterId).val();
filter = filter.toUpperCase();
var options = $("#" + selectListId + " option");
for (var i = 0; i < options.length; i++)
{
if (options[i].text.toUpperCase().indexOf(filter) < 0)
$(options[i]).css("display", "none");
else
$(options[i]).css("display", "block");
}
};
.NET Framework 3.5 has got ranges:
you can use it with "contains" and the IF statement, since like someone said the SWITCH statement uses the "==" operator.
Here an example:
int c = 2;
if(Enumerable.Range(0,10).Contains(c))
DoThing();
else if(Enumerable.Range(11,20).Contains(c))
DoAnotherThing();
But I think we can have more fun: since you won't need the return values and this action doesn't take parameters, you can easily use actions!
public static void MySwitchWithEnumerable(int switchcase, int startNumber, int endNumber, Action action)
{
if(Enumerable.Range(startNumber, endNumber).Contains(switchcase))
action();
}
The old example with this new method:
MySwitchWithEnumerable(c, 0, 10, DoThing);
MySwitchWithEnumerable(c, 10, 20, DoAnotherThing);
Since you are passing actions, not values, you should omit the parenthesis, it's very important. If you need function with arguments, just change the type of Action
to Action<ParameterType>
. If you need return values, use Func<ParameterType, ReturnType>
.
In C# 3.0 there is no easy Partial Application to encapsulate the fact the the case parameter is the same, but you create a little helper method (a bit verbose, tho).
public static void MySwitchWithEnumerable(int startNumber, int endNumber, Action action){
MySwitchWithEnumerable(3, startNumber, endNumber, action);
}
Here an example of how new functional imported statement are IMHO more powerful and elegant than the old imperative one.
To update a table in your .dbml-diagram with, for example, added columns, do this:
You can use toArray function and then get its length for total records count.
db.CollectionName.aggregate([....]).toArray().length
You should remove your component manually, that is...
[name].component.ts
[name].component.html // if you've used templateUrl in your component
[name].component.spec.ts // if you've created test file
[name].component.[css or scss] // if you've used styleUrls in your component
If you have all that files in a folder, delete the folder directly.
Then you need to go to the module which use that component and delete
import { [component_name] } from ...
and the component on the declarations array
That's all. Hope that helps
Building on the accepted answer, this will work with ngRepeat
, filter
and handle expections better:
Controller:
vm.remove = function(item, array) {
var index = array.indexOf(item);
if(index>=0)
array.splice(index, 1);
}
View:
ng-click="vm.remove(item,$scope.bdays)"
The other way around, if you have problems ADDING the lines to your panel dont forget to add the to your TABLE. By default (http://getbootstrap.com/components/#panels), it is suppose to add the line but It helped me to add the tag so now the row lines are shown.
The following example "probably" wont display the lines between rows:
<div class="panel panel-default">
<!-- Default panel contents -->
<div class="panel-heading">Panel heading</div>
<!-- Table -->
<table class="table">
<tr><td> Hi 1! </td></tr>
<tr><td> Hi 2! </td></tr>
</table>
</div>
The following example WILL display the lines between rows:
<div class="panel panel-default">
<!-- Default panel contents -->
<div class="panel-heading">Panel heading</div>
<!-- Table -->
<table class="table">
<thead></thead>
<tr><td> Hi 1! </td></tr>
<tr><td> Hi 2! </td></tr>
</table>
</div>
Modern way:
newParent.append(...oldParent.childNodes);
.append
is the replacement for .appendChild
. The main difference is that it accepts multiple nodes at once and even plain strings, like .append('hello!')
oldParent.childNodes
is iterable so it can be spread with ...
to become multiple parameters of .append()
Compatibility tables of both (in short: Edge 17+, Safari 10+):
Ubuntu 15.10, Kernel 4.2.0, x86-64, GCC 5.2.1 example
Enough standards, let's look at an implementation :-)
Local variable
Standards: undefined behavior.
Implementation: the program allocates stack space, and never moves anything to that address, so whatever was there previously is used.
#include <stdio.h>
int main() {
int i;
printf("%d\n", i);
}
compile with:
gcc -O0 -std=c99 a.c
outputs:
0
and decompiles with:
objdump -dr a.out
to:
0000000000400536 <main>:
400536: 55 push %rbp
400537: 48 89 e5 mov %rsp,%rbp
40053a: 48 83 ec 10 sub $0x10,%rsp
40053e: 8b 45 fc mov -0x4(%rbp),%eax
400541: 89 c6 mov %eax,%esi
400543: bf e4 05 40 00 mov $0x4005e4,%edi
400548: b8 00 00 00 00 mov $0x0,%eax
40054d: e8 be fe ff ff callq 400410 <printf@plt>
400552: b8 00 00 00 00 mov $0x0,%eax
400557: c9 leaveq
400558: c3 retq
From our knowledge of x86-64 calling conventions:
%rdi
is the first printf argument, thus the string "%d\n"
at address 0x4005e4
%rsi
is the second printf argument, thus i
.
It comes from -0x4(%rbp)
, which is the first 4-byte local variable.
At this point, rbp
is in the first page of the stack has been allocated by the kernel, so to understand that value we would to look into the kernel code and find out what it sets that to.
TODO does the kernel set that memory to something before reusing it for other processes when a process dies? If not, the new process would be able to read the memory of other finished programs, leaking data. See: Are uninitialized values ever a security risk?
We can then also play with our own stack modifications and write fun things like:
#include <assert.h>
int f() {
int i = 13;
return i;
}
int g() {
int i;
return i;
}
int main() {
f();
assert(g() == 13);
}
Local variable in -O3
Implementation analysis at: What does <value optimized out> mean in gdb?
Global variables
Standards: 0
Implementation: .bss
section.
#include <stdio.h>
int i;
int main() {
printf("%d\n", i);
}
gcc -00 -std=c99 a.c
compiles to:
0000000000400536 <main>:
400536: 55 push %rbp
400537: 48 89 e5 mov %rsp,%rbp
40053a: 8b 05 04 0b 20 00 mov 0x200b04(%rip),%eax # 601044 <i>
400540: 89 c6 mov %eax,%esi
400542: bf e4 05 40 00 mov $0x4005e4,%edi
400547: b8 00 00 00 00 mov $0x0,%eax
40054c: e8 bf fe ff ff callq 400410 <printf@plt>
400551: b8 00 00 00 00 mov $0x0,%eax
400556: 5d pop %rbp
400557: c3 retq
400558: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1)
40055f: 00
# 601044 <i>
says that i
is at address 0x601044
and:
readelf -SW a.out
contains:
[25] .bss NOBITS 0000000000601040 001040 000008 00 WA 0 0 4
which says 0x601044
is right in the middle of the .bss
section, which starts at 0x601040
and is 8 bytes long.
The ELF standard then guarantees that the section named .bss
is completely filled with of zeros:
.bss
This section holds uninitialized data that contribute to the program’s memory image. By definition, the system initializes the data with zeros when the program begins to run. The section occu- pies no file space, as indicated by the section type,SHT_NOBITS
.
Furthermore, the type SHT_NOBITS
is efficient and occupies no space on the executable file:
sh_size
This member gives the section’s size in bytes. Unless the sec- tion type isSHT_NOBITS
, the section occupiessh_size
bytes in the file. A section of typeSHT_NOBITS
may have a non-zero size, but it occupies no space in the file.
Then it is up to the Linux kernel to zero out that memory region when loading the program into memory when it gets started.
A tab is a tab. How many spaces it consumes is a display issue, and depends on the settings of your shell.
If you want to control the width of your data, then you could use the width
sub-specifiers in the printf
format string. Eg. :
printf("%5d", 2);
It's not a complete solution (if the value is longer than 5 characters, it will not be truncated), but might be ok for your needs.
If you want complete control, you'll probably have to implement it yourself.
You can't get value when calling getJSON
, only after response.
var myjson;
$.getJSON("http://127.0.0.1:8080/horizon-update", function(json){
myjson = json;
});
From the MySQL reference manual:
By default, all log files are created in the data directory.
Check /var/lib/mysql
folder.
$pristine
/$dirty
tells you whether the user actually changed anything, while $touched
/$untouched
tells you whether the user has merely been there/visited.
This is really useful for validation. The reason for $dirty
was always to avoid showing validation responses until the user has actually visited a certain control. But, by using only the $dirty
property, the user wouldn't get validation feedback unless they actually altered the value. So, an $invalid
field still wouldn't show the user a prompt if the user didn't change/interact with the value. If the user entirely ignored a required field, everything looked OK.
With Angular 1.3 and ng-touched
, you can now set a particular style on a control as soon as the user has blurred, regardless of whether they actually edited the value or not.
Here's a CodePen that shows the difference in behavior.
This post will go through the following topics:
merge
has shortcomings here)Oftentimes, the situation arises when multiple DataFrames are to be merged together. Naively, this can be done by chaining merge
calls:
df1.merge(df2, ...).merge(df3, ...)
However, this quickly gets out of hand for many DataFrames. Furthermore, it may be necessary to generalise for an unknown number of DataFrames.
Here I introduce pd.concat
for multi-way joins on unique keys, and DataFrame.join
for multi-way joins on non-unique keys. First, the setup.
# Setup.
np.random.seed(0)
A = pd.DataFrame({'key': ['A', 'B', 'C', 'D'], 'valueA': np.random.randn(4)})
B = pd.DataFrame({'key': ['B', 'D', 'E', 'F'], 'valueB': np.random.randn(4)})
C = pd.DataFrame({'key': ['D', 'E', 'J', 'C'], 'valueC': np.ones(4)})
dfs = [A, B, C]
# Note, the "key" column values are unique, so the index is unique.
A2 = A.set_index('key')
B2 = B.set_index('key')
C2 = C.set_index('key')
dfs2 = [A2, B2, C2]
If your keys (here, the key could either be a column or an index) are unique, then you can use pd.concat
. Note that pd.concat
joins DataFrames on the index.
# merge on `key` column, you'll need to set the index before concatenating
pd.concat([
df.set_index('key') for df in dfs], axis=1, join='inner'
).reset_index()
key valueA valueB valueC
0 D 2.240893 -0.977278 1.0
# merge on `key` index
pd.concat(dfs2, axis=1, sort=False, join='inner')
valueA valueB valueC
key
D 2.240893 -0.977278 1.0
Omit join='inner'
for a FULL OUTER JOIN. Note that you cannot specify LEFT or RIGHT OUTER joins (if you need these, use join
, described below).
concat
is fast, but has its shortcomings. It cannot handle duplicates.
A3 = pd.DataFrame({'key': ['A', 'B', 'C', 'D', 'D'], 'valueA': np.random.randn(5)})
pd.concat([df.set_index('key') for df in [A3, B, C]], axis=1, join='inner')
ValueError: Shape of passed values is (3, 4), indices imply (3, 2)
In this situation, we can use join
since it can handle non-unique keys (note that join
joins DataFrames on their index; it calls merge
under the hood and does a LEFT OUTER JOIN unless otherwise specified).
# join on `key` column, set as the index first
# For inner join. For left join, omit the "how" argument.
A.set_index('key').join(
[df.set_index('key') for df in (B, C)], how='inner').reset_index()
key valueA valueB valueC
0 D 2.240893 -0.977278 1.0
# join on `key` index
A3.set_index('key').join([B2, C2], how='inner')
valueA valueB valueC
key
D 1.454274 -0.977278 1.0
D 0.761038 -0.977278 1.0
Jump to other topics in Pandas Merging 101 to continue learning:
* you are here
git reflog show
should show you the history of HEAD. You can use that to figure out where you were before the pull
. Then you can reset
your HEAD
to that commit.
I also had your problem,and I solved the problem using the following steps (though you may already finish the problem, it just shares for anyone who visit this page):
As all are telling you, JSON does not maintain "sequence" but array does, maybe this could convince you: Ordered JSONObject
To have greater control of the track color (no API
controlled alpha changes), I extended SwitchCompat
and style the elements programmatically:
public class CustomizedSwitch extends SwitchCompat {
public CustomizedSwitch(Context context) {
super(context);
initialize(context);
}
public CustomizedSwitch(Context context, AttributeSet attrs) {
super(context, attrs);
initialize(context);
}
public CustomizedSwitch(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
initialize(context);
}
public void initialize(Context context) {
// DisplayMeasurementConverter is just a utility to convert from dp to px and vice versa
DisplayMeasurementConverter displayMeasurementConverter = new DisplayMeasurementConverter(context);
// Sets the width of the switch
this.setSwitchMinWidth(displayMeasurementConverter.dpToPx((int) getResources().getDimension(R.dimen.tp_toggle_width)));
// Setting up my colors
int mediumGreen = ContextCompat.getColor(context, R.color.medium_green);
int mediumGrey = ContextCompat.getColor(context, R.color.medium_grey);
int alphaMediumGreen = Color.argb(127, Color.red(mediumGreen), Color.green(mediumGreen), Color.blue(mediumGreen));
int alphaMediumGrey = Color.argb(127, Color.red(mediumGrey), Color.green(mediumGrey), Color.blue(mediumGrey));
// Sets the tints for the thumb in different states
DrawableCompat.setTintList(this.getThumbDrawable(), new ColorStateList(
new int[][]{
new int[]{android.R.attr.state_checked},
new int[]{}
},
new int[]{
mediumGreen,
ContextCompat.getColor(getContext(), R.color.light_grey)
}));
// Sets the tints for the track in different states
DrawableCompat.setTintList(this.getTrackDrawable(), new ColorStateList(
new int[][]{
new int[]{android.R.attr.state_checked},
new int[]{}
},
new int[]{
alphaMediumGreen,
alphaMediumGrey
}));
}
}
Whenever I want to use the CustomizedSwitch
, I just add one to my xml
file.
For a 2d numpy
array, simply use imshow()
may help you:
import matplotlib.pyplot as plt
import numpy as np
def heatmap2d(arr: np.ndarray):
plt.imshow(arr, cmap='viridis')
plt.colorbar()
plt.show()
test_array = np.arange(100 * 100).reshape(100, 100)
heatmap2d(test_array)
This code produces a continuous heatmap.
You can choose another built-in colormap
from here.
No. It's very easy to check.
public class Catch {
public static void main(String[] args) {
try {
throw new java.io.IOException();
} catch (java.io.IOException exc) {
System.err.println("In catch IOException: "+exc.getClass());
throw new RuntimeException();
} catch (Exception exc) {
System.err.println("In catch Exception: "+exc.getClass());
} finally {
System.err.println("In finally");
}
}
}
Should print:
In catch IOException: class java.io.IOException In finally Exception in thread "main" java.lang.RuntimeException at Catch.main(Catch.java:8)
Technically that could have been a compiler bug, implementation dependent, unspecified behaviour, or something. However, the JLS is pretty well nailed down and the compilers are good enough for this sort of simple thing (generics corner case may be a different matter).
Also note, if you swap around the two catch blocks, it wont compile. The second catch would be completely unreachable.
Note the finally block always runs even if a catch block is executed (other than silly cases, such as infinite loops, attaching through the tools interface and killing the thread, rewriting bytecode, etc.).
You got the order wrong. The if
should be after the for
(unless it is in an if-else
ternary operator)
[y for y in a if y not in b]
This would work however:
[y if y not in b else other_value for y in a]
a = "A long string with a . in the middle ending with ."
# if you want to find the index of the last occurrence of any string, In our case we #will find the index of the last occurrence of with
index = a.rfind("with")
# the result will be 44, as index starts from 0.
Here is the code to create a simple one second timer tick:
using System;
using System.Threading;
class TimerExample
{
static public void Tick(Object stateInfo)
{
Console.WriteLine("Tick: {0}", DateTime.Now.ToString("h:mm:ss"));
}
static void Main()
{
TimerCallback callback = new TimerCallback(Tick);
Console.WriteLine("Creating timer: {0}\n",
DateTime.Now.ToString("h:mm:ss"));
// create a one second timer tick
Timer stateTimer = new Timer(callback, null, 0, 1000);
// loop here forever
for (; ; )
{
// add a sleep for 100 mSec to reduce CPU usage
Thread.Sleep(100);
}
}
}
And here is the resulting output:
c:\temp>timer.exe
Creating timer: 5:22:40
Tick: 5:22:40
Tick: 5:22:41
Tick: 5:22:42
Tick: 5:22:43
Tick: 5:22:44
Tick: 5:22:45
Tick: 5:22:46
Tick: 5:22:47
EDIT: It is never a good idea to add hard spin loops into code as they consume CPU cycles for no gain. In this case that loop was added just to stop the application from closing, allowing the actions of the thread to be observed. But for the sake of correctness and to reduce the CPU usage a simple Sleep call was added to that loop.
Another solution is to create a private inner class that extends the second class.
e.g a class that extends JMenuItem
and AbstractAction
:
public class MyClass extends JMenuItem {
private class MyAction extends AbstractAction {
// This class can access everything from its parent...
}
}
you can disable all selection
.disable-all{-webkit-touch-callout: none; -webkit-user-select: none;-khtml-user-select: none;-moz-user-select: none;-ms-user-select: none;user-select: none;}
now you can enable input and text-area enable
input, textarea{
-webkit-touch-callout:default;
-webkit-user-select:text;
-khtml-user-select: text;
-moz-user-select:text;
-ms-user-select:text;
user-select:text;}
Right now there are no elements in your list so you cannot add to index 5 of the list when it does not exist. You are confusing the capacity of the list with its current size.
Just call:
arr.add(10)
to add the Integer to your ArrayList
Use the following command from Linux
find $JBOSS_HOME -name run.sh -exec {} -V \; | grep '^JBoss'
Another option, if you are using pandas and would like to suppress scientific notation for all floats, is to adjust the pandas options.
import pandas as pd
pd.options.display.float_format = '{:.2f}'.format
You don't need to call getItem()
or some other method at later stage to get the reference of a Fragment
hosted inside ViewPager
. If you want to update some data inside Fragment
then use this approach: Update ViewPager dynamically?
Key is to set new data inside Adaper
and call notifyDataSetChanged()
which in turn will call getItemPosition()
, passing you a reference of your Fragment
and giving you a chance to update it. All other ways require you to keep reference to yourself or some other hack which is not a good solution.
@Override
public int getItemPosition(Object object) {
if (object instanceof UpdateableFragment) {
((UpdateableFragment) object).update(xyzData);
}
//don't return POSITION_NONE, avoid fragment recreation.
return super.getItemPosition(object);
}
I had a similar task, and was not able to get the above perl solution to work.
Here is my solution:
perl -i -pe "BEGIN{undef $/;} s/^\[mysqld\]$/[mysqld]\n\ncollation-server = utf8_unicode_ci\n/sgm" /etc/mysql/my.cnf
Explanation:
Uses a regular expression to search for a line in my /etc/mysql/my.cnf file that contained only [mysqld]
and replaced it with
[mysqld]
collation-server = utf8_unicode_ci
effectively adding the collation-server = utf8_unicode_ci
line after the line containing [mysqld]
.
Using the accepted answer you have to access each record by using Customers[i].customer
, and you need an extra CustomerJson
class, which is a little annoying. If you don't want to do that, you can use the following:
public class CustomerList
{
[JsonConverter(typeof(MyListConverter))]
public List<Customer> customer { get; set; }
}
Note that I'm using a List<>
, not an Array. Now create the following class:
class MyListConverter : JsonConverter
{
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
var token = JToken.Load(reader);
var list = Activator.CreateInstance(objectType) as System.Collections.IList;
var itemType = objectType.GenericTypeArguments[0];
foreach (var child in token.Values())
{
var childToken = child.Children().First();
var newObject = Activator.CreateInstance(itemType);
serializer.Populate(childToken.CreateReader(), newObject);
list.Add(newObject);
}
return list;
}
public override bool CanConvert(Type objectType)
{
return objectType.IsGenericType && (objectType.GetGenericTypeDefinition() == typeof(List<>));
}
public override bool CanWrite => false;
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer) => throw new NotImplementedException();
}
#include<iostream>
using namespace std;
class employee
{
int idnum;
double salary;
public:
employee(){}
employee(int a,int b)
{
idnum=a;
salary=b;
}
void dis()
{
cout<<"1st emp:"<<endl<<"idnum="<<idnum<<endl<<"salary="<<salary<<endl<<endl;
}
void operator=(employee &emp)
{
idnum=emp.idnum;
salary=emp.salary;
}
void show()
{
cout<<"2nd emp:"<<endl<<"idnum="<<idnum<<endl<<"salary="<<salary<<endl;
}
};
main()
{
int a;
double b;
cout<<"enter id num and salary"<<endl;
cin>>a>>b;
employee e1(a,b);
e1.dis();
employee e2;
e2=e1;
e2.show();
}
Try the following.
$d = [datetime](Get-ItemProperty -Path $source -Name LastWriteTime).lastwritetime
This is part of the item property weirdness. When you run Get-ItemProperty it does not return the value but instead the property. You have to use one more level of indirection to get to the value.
Initial answer (EL 2.1, May 2009)
As mentioned in this java forum thread:
Basically autoboxing puts an Integer object into the Map. ie:
map.put(new Integer(0), "myValue")
EL (Expressions Languages) evaluates 0 as a Long and thus goes looking for a Long as the key in the map. ie it evaluates:
map.get(new Long(0))
As a Long
is never equal to an Integer
object, it does not find the entry in the map.
That's it in a nutshell.
Dec 2009 saw the introduction of EL 2.2 with JSP 2.2 / Java EE 6, with a few differences compared to EL 2.1.
It seems ("EL Expression parsing integer as long") that:
you can call the method
intValue
on theLong
object self inside EL 2.2:
<c:out value="${map[(1).intValue()]}"/>
That could be a good workaround here (also mentioned below in Tobias Liefke's answer)
Original answer:
EL uses the following wrappers:
Terms Description Type
null null value. -
123 int value. java.lang.Long
123.00 real value. java.lang.Double
"string" ou 'string' string. java.lang.String
true or false boolean. java.lang.Boolean
JSP page demonstrating this:
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ page import="java.util.*" %>
<h2> Server Info</h2>
Server info = <%= application.getServerInfo() %> <br>
Servlet engine version = <%= application.getMajorVersion() %>.<%= application.getMinorVersion() %><br>
Java version = <%= System.getProperty("java.vm.version") %><br>
<%
Map map = new LinkedHashMap();
map.put("2", "String(2)");
map.put(new Integer(2), "Integer(2)");
map.put(new Long(2), "Long(2)");
map.put(42, "AutoBoxedNumber");
pageContext.setAttribute("myMap", map);
Integer lifeInteger = new Integer(42);
Long lifeLong = new Long(42);
%>
<h3>Looking up map in JSTL - integer vs long </h3>
This page demonstrates how JSTL maps interact with different types used for keys in a map.
Specifically the issue relates to autoboxing by java using map.put(1, "MyValue") and attempting to display it as ${myMap[1]}
The map "myMap" consists of four entries with different keys: A String, an Integer, a Long and an entry put there by AutoBoxing Java 5 feature.
<table border="1">
<tr><th>Key</th><th>value</th><th>Key Class</th></tr>
<c:forEach var="entry" items="${myMap}" varStatus="status">
<tr>
<td>${entry.key}</td>
<td>${entry.value}</td>
<td>${entry.key.class}</td>
</tr>
</c:forEach>
</table>
<h4> Accessing the map</h4>
Evaluating: ${"${myMap['2']}"} = <c:out value="${myMap['2']}"/><br>
Evaluating: ${"${myMap[2]}"} = <c:out value="${myMap[2]}"/><br>
Evaluating: ${"${myMap[42]}"} = <c:out value="${myMap[42]}"/><br>
<p>
As you can see, the EL Expression for the literal number retrieves the value against the java.lang.Long entry in the map.
Attempting to access the entry created by autoboxing fails because a Long is never equal to an Integer
<p>
lifeInteger = <%= lifeInteger %><br/>
lifeLong = <%= lifeLong %><br/>
lifeInteger.equals(lifeLong) : <%= lifeInteger.equals(lifeLong) %> <br>
You may be interested by the pack_forget
and grid_forget
methods of a widget. In the following example, the button disappear when clicked
from Tkinter import *
def hide_me(event):
event.widget.pack_forget()
root = Tk()
btn=Button(root, text="Click")
btn.bind('<Button-1>', hide_me)
btn.pack()
btn2=Button(root, text="Click too")
btn2.bind('<Button-1>', hide_me)
btn2.pack()
root.mainloop()
If you have a List
of objects, you can serialize them to JSON as follow:
List<MyObjectClass> listOfObjects = new List<MyObjectClass>();
And then use addParameter
:
requestREST.AddParameter("myAssocKey", JsonConvert.SerializeObject(listOfObjects));
And you wil need to set the request format to JSON
:
requestREST.RequestFormat = DataFormat.Json;
To get the smallest or largest item in a list, use the built-in min and max functions:
lo = min(L)
hi = max(L)
As with sort, you can pass in a "key" argument that is used to map the list items before they are compared:
lo = min(L, key=int)
hi = max(L, key=int)
http://effbot.org/zone/python-list.htm
Looks like you could use the max function if you map it correctly for strings and use that as the comparison. I would recommend just finding the max once though of course, not for each element in the list.
Set delegate of UITextField
in view controller, field.delegate = self
, and then:
extension ViewController: UITextFieldDelegate {
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
// don't force `endEditing` if you want to be asked for resigning
// also return real flow value, not strict, like: true / false
return textField.endEditing(false)
}
}
You can't do this with jQuery ajax, but with native XMLHttpRequest.
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function(){
if (this.readyState == 4 && this.status == 200){
//this.response is what you're looking for
handler(this.response);
console.log(this.response, typeof this.response);
var img = document.getElementById('img');
var url = window.URL || window.webkitURL;
img.src = url.createObjectURL(this.response);
}
}
xhr.open('GET', 'http://jsfiddle.net/img/logo.png');
xhr.responseType = 'blob';
xhr.send();
EDIT
So revisiting this topic, it seems it is indeed possible to do this with jQuery 3
jQuery.ajax({_x000D_
url:'https://images.unsplash.com/photo-1465101108990-e5eac17cf76d?ixlib=rb-0.3.5&q=85&fm=jpg&crop=entropy&cs=srgb&ixid=eyJhcHBfaWQiOjE0NTg5fQ%3D%3D&s=471ae675a6140db97fea32b55781479e',_x000D_
cache:false,_x000D_
xhr:function(){// Seems like the only way to get access to the xhr object_x000D_
var xhr = new XMLHttpRequest();_x000D_
xhr.responseType= 'blob'_x000D_
return xhr;_x000D_
},_x000D_
success: function(data){_x000D_
var img = document.getElementById('img');_x000D_
var url = window.URL || window.webkitURL;_x000D_
img.src = url.createObjectURL(data);_x000D_
},_x000D_
error:function(){_x000D_
_x000D_
}_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.0.0/jquery.min.js"></script>_x000D_
<img id="img" width=100%>
_x000D_
or
use xhrFields to set the responseType
jQuery.ajax({_x000D_
url:'https://images.unsplash.com/photo-1465101108990-e5eac17cf76d?ixlib=rb-0.3.5&q=85&fm=jpg&crop=entropy&cs=srgb&ixid=eyJhcHBfaWQiOjE0NTg5fQ%3D%3D&s=471ae675a6140db97fea32b55781479e',_x000D_
cache:false,_x000D_
xhrFields:{_x000D_
responseType: 'blob'_x000D_
},_x000D_
success: function(data){_x000D_
var img = document.getElementById('img');_x000D_
var url = window.URL || window.webkitURL;_x000D_
img.src = url.createObjectURL(data);_x000D_
},_x000D_
error:function(){_x000D_
_x000D_
}_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.0.0/jquery.min.js"></script>_x000D_
<img id="img" width=100%>
_x000D_
How about calling a function from within your callback instead of returning a value in sync_call()?
function sync_call(input) {
var value;
// Assume the async call always succeed
async_call(input, function(result) {
value = result;
use_value(value);
} );
}
For make a list, simply do that
colors=(red orange white "light gray")
Technically is an array, but - of course - it has all list features.
Even python list are implemented with array
In Go, there is a general rule that syntax should not hide complex/costly operations. Converting a string
to an interface{}
is done in O(1) time. Converting a []string
to an interface{}
is also done in O(1) time since a slice is still one value. However, converting a []string
to an []interface{}
is O(n) time because each element of the slice must be converted to an interface{}
.
The one exception to this rule is converting strings. When converting a string
to and from a []byte
or a []rune
, Go does O(n) work even though conversions are "syntax".
There is no standard library function that will do this conversion for you. You could make one with reflect, but it would be slower than the three line option.
Example with reflection:
func InterfaceSlice(slice interface{}) []interface{} {
s := reflect.ValueOf(slice)
if s.Kind() != reflect.Slice {
panic("InterfaceSlice() given a non-slice type")
}
// Keep the distinction between nil and empty slice input
if s.IsNil() {
return nil
}
ret := make([]interface{}, s.Len())
for i:=0; i<s.Len(); i++ {
ret[i] = s.Index(i).Interface()
}
return ret
}
Your best option though is just to use the lines of code you gave in your question:
b := make([]interface{}, len(a))
for i := range a {
b[i] = a[i]
}
In short: It is not possible, and as it seems won't ever be supported (see here https://github.com/npm/npm/issues/775).
There are some hacky work-arrounds with using the CLI or ENV-Variables (see the current selected answer), .npmrc-Config-Files or npm link
- what they all have in common: They are never just project-specific, but always some kind of global
Solutions.
For me, none of those solutions are really clean because contributors to your project always need to create some special configuration or have some special knowledge - they can't just npm install
and it works.
So: Either you will have to put your package.json in the same directory where you want your node_modules installed, or live with the fact that they will always be in the root-dir of your project.
One technique is to create a copy of the collection you want to modify, change the copy as needed, then replace the original collection with the copy at the end.
REST(REpresentation State Transfer) is an architecture using which WebServices are created.
and
RESTful is way of writing services using the REST architectures. RESTful services exposes the resources to identify the targets to interact with clients.
Here's a variation on this theme. I want to uninstall Cisco Amp, wait, and get the exit code. But the uninstall program starts a second program called "un_a" and exits. With this code, I can wait for un_a to finish and get the exit code of it, which is 3010 for "needs reboot". This is actually inside a .bat file.
If you've ever wanted to uninstall folding@home, it works in a similar way.
rem uninstall cisco amp, probably needs a reboot after
rem runs Un_A.exe and exits
rem start /wait isn't useful
"c:\program files\Cisco\AMP\6.2.19\uninstall.exe" /S
powershell while (! ($proc = get-process Un_A -ea 0)) { sleep 1 }; $handle = $proc.handle; 'waiting'; wait-process Un_A; exit $proc.exitcode
Attach with jvisualvm from Sun Java 6 JDK. Startup flags are listed.
String.Format("X", c);
That just outputs: X
Try this instead:
string t = ((int)c).ToString("X");
sb.Append("\\u" + t.PadLeft(4, '0'));
findstr /spin /c:"string" [files]
The parameters have the following meanings:
s
= recursivep
= skip non-printable charactersi
= case insensitiven
= print line numbersAnd the string to search for is the bit you put in quotes after /c:
Try the code below to prevent the default behaviour scrolling back to the top of the page
$(document).ready(function() {
$('.galleryicon').live("click", function(e) { // the (e) represent the event
$('#mainImage').hide();
$('#cakebox').css('background-image', "url('ajax-loader.gif')");
var i = $('<img />').attr('src',this.href).load(function() {
$('#mainImage').attr('src', i.attr('src'));
$('#cakebox').css('background-image', 'none');
$('#mainImage').fadeIn();
});
e.preventDefault(); //Prevent default click action which is causing the
return false; //page to scroll back to the top
});
});
For more information on event.preventDefault() have a look here at the official documentation.
copied from: https://android.stackexchange.com/questions/12962/flush-clear-dns-cache
Addresses are cached for 600 seconds (10 minutes) by default. Failed lookups are cached for 10 seconds. From everything I've seen, there's nothing built in to flush the cache. This is apparently a reported bug http://code.google.com/p/android/issues/detail?id=7904 in Android because of the way it stores DNS cache. Clearing the browser cache doesn't touch the DNS, the "hard reset" clears it.
explode('.', $string)
If you know your string has a fixed number of components you could use something like
list($a, $b) = explode('.', 'object.attribute');
echo $a;
echo $b;
Prints:
object
attribute
Angular comes with a limitTo:limit filter, it support limiting first x items and last x items:
<div ng-repeat="item in items|limitTo:4">{{item}}</div>
This error may be triggered by insufficient memory on RDP server.
After few tries with this error, RDP managed to get a connection to the server and I was able to stop a bogus service consuming too much memory. This can be done also with sysinternals or sc.
I know this is an old post, but I ran into this same issue with my VMs. Log into the VM and go to Control Panel > System and Security > Windows Firewall > Allowed Apps. Then check all of the boxes next to "File and Printer Sharing" to enable file sharing. This should allow you to ping the VM. The screenshot below is from a 2016 Windows Server but the same method will work on older ones.
For shortened hex code like #fff or #000
int red = "colorString".charAt(1) == '0' ? 0 :
"colorString".charAt(1) == 'f' ? 255 : 228;
int green =
"colorString".charAt(2) == '0' ? 0 : "colorString".charAt(2) == 'f' ?
255 : 228;
int blue = "colorString".charAt(3) == '0' ? 0 :
"colorString".charAt(3) == 'f' ? 255 : 228;
Color.rgb(red, green,blue);
This work for me.
Syntax : ssh -i pemfile.pem user_name@ip_address 'command_1 ; command 2; command 3'
#! /bin/bash
echo "########### connecting to server and run commands in sequence ###########"
ssh -i ~/.ssh/ec2_instance.pem ubuntu@ip_address 'touch a.txt; touch b.txt; sudo systemctl status tomcat.service'
This is default database :
$db['default'] = array(
'dsn' => '',
'hostname' => 'localhost',
'username' => 'root',
'password' => '',
'database' => 'mydatabase',
'dbdriver' => 'mysqli',
'dbprefix' => '',
'pconnect' => TRUE,
'db_debug' => (ENVIRONMENT !== 'production'),
'cache_on' => FALSE,
'cachedir' => '',
'char_set' => 'utf8',
'dbcollat' => 'utf8_general_ci',
'swap_pre' => '',
'encrypt' => FALSE,
'compress' => FALSE,
'stricton' => FALSE,
'failover' => array(),
'save_queries' => TRUE
);
Add another database at the bottom of database.php file
$db['second'] = array(
'dsn' => '',
'hostname' => 'localhost',
'username' => 'root',
'password' => '',
'database' => 'mysecond',
'dbdriver' => 'mysqli',
'dbprefix' => '',
'pconnect' => TRUE,
'db_debug' => (ENVIRONMENT !== 'production'),
'cache_on' => FALSE,
'cachedir' => '',
'char_set' => 'utf8',
'dbcollat' => 'utf8_general_ci',
'swap_pre' => '',
'encrypt' => FALSE,
'compress' => FALSE,
'stricton' => FALSE,
'failover' => array(),
'save_queries' => TRUE
);
In autoload.php config file
$autoload['libraries'] = array('database', 'email', 'session');
The default database is worked fine by autoload the database library but second database load and connect by using constructor in model and controller...
<?php
class Seconddb_model extends CI_Model {
function __construct(){
parent::__construct();
//load our second db and put in $db2
$this->db2 = $this->load->database('second', TRUE);
}
public function getsecondUsers(){
$query = $this->db2->get('members');
return $query->result();
}
}
?>
After so much trouble i got it.
.purple_checkbox:after {
content: " ";
background-color: #5C2799;
display: inline-block;
visibility: visible;
}
.purple_checkbox:checked:after {
content: "\2714";
box-shadow: 0px 2px 4px rgba(155, 155, 155, 0.15);
border-radius: 3px;
height: 12px;
display: block;
width: 12px;
text-align: center;
font-size: 9px;
color: white;
}
While the suggestions given already may work for some people, it does not work for my case. When performing the merge, users at rev 1443
who update to rev 1445
, still sync all files changed in 1444
even though they are equal to 1443
from the merge. I needed end users to not see the update at all.
If you want to completely hide the commit it is possible by creating a new branch at correct revision and then swapping the branches. The only thing is you need to remove and re add all locks.
copy -r 1443 file:///<your_branch> file:///<your_branch_at_correct_rev>
svn move file:///<your_branch> file:///<backup_branch>
svn move file:///<your_branch_at_correct_rev> file:///<your_branch>
This worked for me, perhaps it will be helpful to someone else out there =)
select t1.user_id,t2.user_id
from t1 left join t2 ON t1.user_id = t2.user_id
and t1.username=t2.username
and t1.first_name=t2.first_name
and t1.last_name=t2.last_name
try this. This will compare your table and find all matching pairs, if any mismatch return NULL on left.
you can use:
<?php
$css = file_get_contents('CSS/main.css');
echo $css;
?>
and assuming that css file doesn't have it already, wrap the above in:
<style type="text/css">
...
</style>
The simplest solution is just to not call e.preventDefault()
unless validation actually fails. Move that line inside the inner if
statement, and remove the last line of the function with the .unbind().submit()
.
A type variable, <T>, can be any non-primitive type you specify: any class type, any interface type, any array type, or even another type variable.
The most commonly used type parameter names are:
In Java 7 it is permitted to instantiate like this:
Foo<String, Integer> foo = new Foo<>(); // Java 7
Foo<String, Integer> foo = new Foo<String, Integer>(); // Java 6
We make Webapps statefull by overriding HTTP stateless behaviour by using session objects.When we use session objets state is carried but we still use HTTP only.
Perfect, try it:
SELECT ROUTINE_DEFINITION FROM INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_SCHEMA = 'yourdb' AND ROUTINE_TYPE = 'PROCEDURE' AND ROUTINE_NAME = "procedurename";
What you are talking about is called dot sourcing. And it's evil. But no worries, there is a better and easier way to do what you are wanting with modules (it sounds way scarier than it is). The major benefit of using modules is that you can unload them from the shell if you need to, and it keeps the variables in the functions from creeping into the shell (once you dot source a function file, try calling one of the variables from a function in the shell, and you'll see what I mean).
So first, rename the .ps1 file that has all your functions in it to MyFunctions.psm1 (you've just created a module!). Now for a module to load properly, you have to do some specific things with the file. First for Import-Module to see the module (you use this cmdlet to load the module into the shell), it has to be in a specific location. The default path to the modules folder is $home\Documents\WindowsPowerShell\Modules.
In that folder, create a folder named MyFunctions, and place the MyFunctions.psm1 file into it (the module file must reside in a folder with exactly the same name as the PSM1 file).
Once that is done, open PowerShell, and run this command:
Get-Module -listavailable
If you see one called MyFunctions, you did it right, and your module is ready to be loaded (this is just to ensure that this is set up right, you only have to do this once).
To use the module, type the following in the shell (or put this line in your $profile, or put this as the first line in a script):
Import-Module MyFunctions
You can now run your functions. The cool thing about this is that once you have 10-15 functions in there, you're going to forget the name of a couple. If you have them in a module, you can run the following command to get a list of all the functions in your module:
Get-Command -module MyFunctions
It's pretty sweet, and the tiny bit of effort that it takes to set up on the front side is WAY worth it.
just pass the img file object which is obtained by the input element when we select the correct file it will give the netural height and width of image
function getNeturalHeightWidth(file) {
let h, w;
let reader = new FileReader();
reader.onload = () => {
let tmpImgNode = document.createElement("img");
tmpImgNode.onload = function() {
h = this.naturalHeight;
w = this.naturalWidth;
};
tmpImgNode.src = reader.result;
};
reader.readAsDataURL(file);
}
return h, w;
}
The one-liner that Andre Miller posted above works except for recent versions of sed when the input file ends with a blank line and no chars. On my Mac my CPU just spins.
Infinite loop if last line is blank and has no chars:
sed '$!N; /^\(.*\)\n\1$/!P; D'
Doesn't hang, but you lose the last line
sed '$d;N; /^\(.*\)\n\1$/!P; D'
The explanation is at the very end of the sed FAQ:
The GNU sed maintainer felt that despite the portability problems
this would cause, changing the N command to print (rather than
delete) the pattern space was more consistent with one's intuitions
about how a command to "append the Next line" ought to behave.
Another fact favoring the change was that "{N;command;}" will
delete the last line if the file has an odd number of lines, but
print the last line if the file has an even number of lines.To convert scripts which used the former behavior of N (deleting
the pattern space upon reaching the EOF) to scripts compatible with
all versions of sed, change a lone "N;" to "$d;N;".
If you want the table to still be 100% then set one of the columns to have a width:100%; That will extend that column to fill the extra space and allow the other columns to keep their auto width :)
This is what solved it for me:
Go to Project Properties > Debug > Uncheck "Launch Browser".
Check pandas.__version__
:
In [76]: import pandas as pd
In [77]: pd.__version__
Out[77]: '0.12.0-933-g281dc4e'
Pandas also provides a utility function, pd.show_versions()
, which reports the version of its dependencies as well:
In [53]: pd.show_versions(as_json=False)
INSTALLED VERSIONS
------------------
commit: None
python: 2.7.6.final.0
python-bits: 64
OS: Linux
OS-release: 3.13.0-45-generic
machine: x86_64
processor: x86_64
byteorder: little
LC_ALL: None
LANG: en_US.UTF-8
pandas: 0.15.2-113-g5531341
nose: 1.3.1
Cython: 0.21.1
numpy: 1.8.2
scipy: 0.14.0.dev-371b4ff
statsmodels: 0.6.0.dev-a738b4f
IPython: 2.0.0-dev
sphinx: 1.2.2
patsy: 0.3.0
dateutil: 1.5
pytz: 2012c
bottleneck: None
tables: 3.1.1
numexpr: 2.2.2
matplotlib: 1.4.2
openpyxl: None
xlrd: 0.9.3
xlwt: 0.7.5
xlsxwriter: None
lxml: 3.3.3
bs4: 4.3.2
html5lib: 0.999
httplib2: 0.8
apiclient: None
rpy2: 2.5.5
sqlalchemy: 0.9.8
pymysql: None
psycopg2: 2.4.5 (dt dec mx pq3 ext)
The is
operator evaluates to a boolean result, so you can do anything you would otherwise be able to do on a bool. To negate it use the !
operator. Why would you want to have a different operator just for this?
The excellent (and immutable) date-fns library handles this most concisely:
const start = startOfWeek(date);
const end = endOfWeek(date);
Default start day of the week is Sunday (0), but it can be changed to Monday (1) like this:
const start = startOfWeek(date, {weekStartsOn: 1});
const end = endOfWeek(date, {weekStartsOn: 1});
Why not just use CSS?
.parent:hover .child, .parent.hover .child { display: block; }
and then add JS for IE6 (inside a conditional comment for instance) which doesn't support :hover properly:
jQuery('.parent').hover(function () {
jQuery(this).addClass('hover');
}, function () {
jQuery(this).removeClass('hover');
});
Here's a quick example: Fiddle
I also experienced that for example:
This code doesnt work and get the intended block error.
class Foo(models.Model):
title = models.CharField(max_length=200)
body = models.TextField()
pub_date = models.DateTimeField('date published')
likes = models.IntegerField()
def __unicode__(self):
return self.title
However, when i press tab before typing return self.title statement, the code works.
class Foo(models.Model):
title = models.CharField(max_length=200)
body = models.TextField()
pub_date = models.DateTimeField('date published')
likes = models.IntegerField()
def __unicode__(self):
return self.title
Hope, this will help others.
Hope this will help some how in your case, I suffered with the exact same problem, and just used localstorage to share the data between parent window and iframe. So in parent window you can:
localStorage.setItem("url", myUrl);
And in code where iframe source is just get this data from localstorage:
localStorage.getItem('url');
Saved me a lot of time. As far as i can see the only condition is access to the parent page code. Hope this will help someone.
You can use def drop(col: Column)
method to drop the duplicated column,for example:
DataFrame:df1
+-------+-----+
| a | f |
+-------+-----+
|107831 | ... |
|107831 | ... |
+-------+-----+
DataFrame:df2
+-------+-----+
| a | f |
+-------+-----+
|107831 | ... |
|107831 | ... |
+-------+-----+
when I join df1 with df2, the DataFrame will be like below:
val newDf = df1.join(df2,df1("a")===df2("a"))
DataFrame:newDf
+-------+-----+-------+-----+
| a | f | a | f |
+-------+-----+-------+-----+
|107831 | ... |107831 | ... |
|107831 | ... |107831 | ... |
+-------+-----+-------+-----+
Now, we can use def drop(col: Column)
method to drop the duplicated column 'a' or 'f', just like as follows:
val newDfWithoutDuplicate = df1.join(df2,df1("a")===df2("a")).drop(df2("a")).drop(df2("f"))
Not Just HTML, Using atom-beautify
- Package for Atom, you can format code for HTML, CSS, JavaScript, PHP, Python, Ruby, Java, C, C++, C#, Objective-C, CoffeeScript, TypeScript, Coldfusion, SQL, and more) in Atom within a matter of seconds.
To Install the atom-beautify
package :
Install Packages & Themes
. A Install Package window comes up.Beautify
package, you will see a lot of beautify packages. Install any. I will recommend for atom-beautify
.To Format text Using atom-beautify
:
Click on Statistics icon to display and then run the query to get the timings and to know how efficient your query is
Assume I have a variable named file
that contains a file.
Then I could use file.write("hello\talex")
.
file.write("hello
means I'm starting to write to this file.\t
means a tabalex")
is the rest I'm writingI presume that you're talking about bash strings. There are different types of strings which have a different set of requirements for escaping. eg. Single quotes strings are different from double quoted strings.
The best reference is the Quoting section of the bash manual.
It explains which characters needs escaping. Note that some characters may need escaping depending on which options are enabled such as history expansion.
# getattr
class hithere():
def french(self):
print 'bonjour'
def english(self):
print 'hello'
def german(self):
print 'hallo'
def czech(self):
print 'ahoj'
def noidea(self):
print 'unknown language'
def dispatch(language):
try:
getattr(hithere(),language)()
except:
getattr(hithere(),'noidea')()
# note, do better error handling than this
dispatch('french')
dispatch('english')
dispatch('german')
dispatch('czech')
dispatch('spanish')
A lot of things can configured in applicationproperties. Unfortunately this feature only in Version 1.3, but you can add in a Config-Class
@Autowired(required = true)
public void configureJackson(ObjectMapper jackson2ObjectMapper) {
jackson2ObjectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
}
[UPDATE: You must work on the ObjectMapper because the build()
-method is called before the config is runs.]
To answer your question, on Windows, the my.cnf
file may be called my.ini
. MySQL looks for it in the following locations (in this order):
%PROGRAMDATA%\MySQL\MySQL Server 5.7\my.ini
, %PROGRAMDATA%\MySQL\MySQL Server 5.7\my.cnf
%WINDIR%\my.ini
, %WINDIR%\my.cnf
C:\my.ini
, C:\my.cnf
\my.ini
, INSTALLDIR\my.cnf
See also http://dev.mysql.com/doc/refman/5.7/en/option-files.html
Then you can edit the config file and add an entry like this:
[mysqld]
skip-grant-tables
Then restart the MySQL Service and you can log in and do what you need to do. Of course you want to disable that entry in the config file as soon as possible!
See also http://dev.mysql.com/doc/refman/5.7/en/resetting-permissions.html
You need to run pip list
in bash not in python.
pip list
DEPRECATION: Python 2.6 is no longer supported by the Python core team, please upgrade your Python. A future version of pip will drop support for Python 2.6
argparse (1.4.0)
Beaker (1.3.1)
cas (0.15)
cups (1.0)
cupshelpers (1.0)
decorator (3.0.1)
distribute (0.6.10)
---and other modules
You need to use the select new
LINQ keyword to explicitly convert your tbcourse
entity into the custom type course
. Example of select new
:
var q = from o in db.Orders
where o.Products.ProductName.StartsWith("Asset") &&
o.PaymentApproved == true
select new { name = o.Contacts.FirstName + " " +
o.Contacts.LastName,
product = o.Products.ProductName,
version = o.Products.Version +
(o.Products.SubVersion * 0.1)
};
When using LEFT JOIN
or RIGHT JOIN
, it makes a difference whether you put the filter in the WHERE
or into the JOIN
.
See this answer to a similar question I wrote some time ago:
What is the difference in these two queries as getting two different result set?
In short:
WHERE
clause (like you did, the results that aren't associated with that computer are completely filtered outJOIN
instead, the results that aren't associated with that computer appear in the query result, only with NULL
valuesYou can use Arrays.sort() method. Here's the example,
import java.util.Arrays;
public class Test
{
public static void main(String[] args)
{
String arrString[] = { "peter", "taylor", "brooke", "frederick", "cameron" };
orderedGuests(arrString);
}
public static void orderedGuests(String[] hotel)
{
Arrays.sort(hotel);
System.out.println(Arrays.toString(hotel));
}
}
Output
[brooke, cameron, frederick, peter, taylor]
The userdir prefix (e.g., '/home' or '/export/home') could be a configuration item. Then the app can append the arbitrary user name to that path.
Caveat: This doesn't intelligently interact with the OS, so you'd be out of luck if it were a Windows system with userdirs on different drives, or on Unix with a home dir layout like /home/f/foo, /home/b/bar.
Use NSJSONSerialization:
NSDictionary *dict;
NSData *dataFromDict = [NSJSONSerialization dataWithJSONObject:dict
options:NSJSONWritingPrettyPrinted
error:&error];
NSDictionary *dictFromData = [NSJSONSerialization JSONObjectWithData:dataFromDict
options:NSJSONReadingAllowFragments
error:&error];
The latest returns id
, so its a good idea to check the returned object type after you cast (here i casted to NSDictionary).
You should read Learn Prolog Now! Chapter 10.2 Using Cut. This provides an example:
max(X,Y,Z) :- X =< Y,!, Y = Z.
to be said,
Z
is equal to Y
IF !
is true (which it always is) AND X
is <= Y
.
Don't build it if you can buy it.
I heard this quote recently, and it really seems fitting as a guide line. Ask yourself this... How much time was spent working on the file handling portion of your app? I suspect a fair amount of time was spent optimizing this code for performance. If you had been using a relational database all along, you would have spent considerably less time handling this portion of your application. You would have had more time for the true "business" aspect of your app.
try this one
String fileSuffix = new SimpleDateFormat("yyyyMMddHHmmss").format(new Date());
I had the same issue with Instantiating DBContext
object from a unit test project. I checked my unit test project packages and I figured that EntityFramework
package was not installed, I installed that from Nuget and problem solved (I think it's EF bug).
happy coding
If somebody is looking for solution respecting holidays (without any huge library like pandas), try this function:
import holidays
import datetime
def previous_working_day(check_day_, holidays=holidays.US()):
offset = max(1, (check_day_.weekday() + 6) % 7 - 3)
most_recent = check_day_ - datetime.timedelta(offset)
if most_recent not in holidays:
return most_recent
else:
return previous_working_day(most_recent, holidays)
check_day = datetime.date(2020, 12, 28)
previous_working_day(check_day)
which produce:
datetime.date(2020, 12, 24)
Born Solutions its best one, just need a bit tweek to feet the needs, i had different responsive solutions and changed a bit
<div ng-repeat="post in posts">
<div class="vechicle-single col-lg-4 col-md-6 col-sm-12 col-xs-12">
</div>
<div class="clearfix visible-lg" ng-if="($index + 1) % 3 == 0"></div>
<div class="clearfix visible-md" ng-if="($index + 1) % 2 == 0"></div>
<div class="clearfix visible-sm" ng-if="($index + 1) % 1 == 0"></div>
<div class="clearfix visible-xs" ng-if="($index + 1) % 1 == 0"></div>
</div>
Reboot the device. This always fixes it on Mac OS, whereas adb kill-server
does not.
Since unpaidMembers
is a dictionary it always returns two values when called with .items()
- (key, value). You may want to keep your data as a list of tuples [(name, email, lastname), (name, email, lastname)..]
.
SUMIF didn't worked for me, had to use SUMIFS.
=SUMIFS(TableAmount,TableMonth,"January")
TableAmount is the table to sum the values, TableMonth the table where we search the condition and January, of course, the condition to meet.
Hope this can help someone!
I got this error too, really confused. cuz all answers does not work. Just after add adb to path.
I ran into the same problem. One issue might be OpenCV is created for Python 2.7, not 3 (not all python 2.7 libraries will work in python 3 or greater). I also don't believe you can download OpenCV directly through PyCharm's package installer. I have found luck following the instructions: OpenCV Python. Specifically:
import cv2
, and assuming no errors print cv2.__version__
Alternatively, I have had luck using this package opencv-python, which you can straightforwardly install using pip with pip install opencv-python
Good luck!
In iOS 8.3 (perhaps earlier) with Swift, it's as simple as overriding the motionBegan
or motionEnded
methods in your view controller:
class ViewController: UIViewController {
override func motionBegan(motion: UIEventSubtype, withEvent event: UIEvent) {
println("started shaking!")
}
override func motionEnded(motion: UIEventSubtype, withEvent event: UIEvent) {
println("ended shaking!")
}
}
Let's break >> /dev/null 2>&1
statement into parts:
Part 1: >>
output redirection
This is used to redirect the program output and append the output at the end of the file. More...
Part 2: /dev/null
special file
This is a Pseudo-devices special file.
Command ls -l /dev/null
will give you details of this file:
crw-rw-rw-. 1 root root 1, 3 Mar 20 18:37 /dev/null
Did you observe crw
? Which means it is a pseudo-device file which is of character-special-file type that provides serial access.
/dev/null
accepts and discards all input; produces no output (always returns an end-of-file indication on a read). Reference: Wikipedia
Part 3: 2>&1
file descriptor
Whenever you execute a program, the operating system always opens three files, standard input, standard output, and standard error as we know whenever a file is opened, the operating system (from kernel) returns a non-negative integer called a file descriptor. The file descriptor for these files are 0, 1, and 2, respectively.
So 2>&1
simply says redirect standard error to standard output.
&
means whatever follows is a file descriptor, not a filename.
In short, by using this command you are telling your program not to shout while executing.
What is the importance of using 2>&1
?
If you don't want to produce any output, even in case of some error produced in the terminal. To explain more clearly, let's consider the following example:
$ ls -l > /dev/null
For the above command, no output was printed in the terminal, but what if this command produces an error:
$ ls -l file_doesnot_exists > /dev/null
ls: cannot access file_doesnot_exists: No such file or directory
Despite I'm redirecting output to /dev/null
, it is printed in the terminal. It is because we are not redirecting error output to /dev/null
, so in order to redirect error output as well, it is required to add 2>&1
:
$ ls -l file_doesnot_exists > /dev/null 2>&1
Here is a function that will do it without jQuery:
function getElementOffset(element)
{
var de = document.documentElement;
var box = element.getBoundingClientRect();
var top = box.top + window.pageYOffset - de.clientTop;
var left = box.left + window.pageXOffset - de.clientLeft;
return { top: top, left: left };
}
I ended up using this quick piece of code that did exactly what I needed:
final JFileChooser fc = new JFileChooser();
fc.showOpenDialog(this);
try {
// Open an input stream
Scanner reader = new Scanner(fc.getSelectedFile());
}
df.iloc[0].head(1)
- First data set only from entire first row.df.iloc[0]
- Entire First row in column.you can save the xlsx file as a tab-delimited text file and do
BULK INSERT TableName
FROM 'C:\SomeDirectory\my table.txt'
WITH
(
FIELDTERMINATOR = '\t',
ROWTERMINATOR = '\n'
)
GO
Please refer to this for the example .The main point is to use the groupProperty()
, and the related aggregate functions provided by the Projections class.
For example :
SELECT column_name, max(column_name) , min (column_name) , count(column_name)
FROM table_name
WHERE column_name > xxxxx
GROUP BY column_name
Its equivalent criteria object is :
List result = session.createCriteria(SomeTable.class)
.add(Restrictions.ge("someColumn", xxxxx))
.setProjection(Projections.projectionList()
.add(Projections.groupProperty("someColumn"))
.add(Projections.max("someColumn"))
.add(Projections.min("someColumn"))
.add(Projections.count("someColumn"))
).list();
I ran into the same problem with a Gravity Form (WordPress) in IE11. The form's column style "display: inline-grid" broke the layout; applying the answers above resolved the discrepancy!
@media all and (-ms-high-contrast:none){
*::-ms-backdrop, .gfmc-column { display: inline-block;} /* IE11 */
}
public static String detectDateFormat(String inputDate, String requiredFormat) {
String tempDate = inputDate.replace("/", "").replace("-", "").replace(" ", "");
String dateFormat;
if (tempDate.matches("([0-12]{2})([0-31]{2})([0-9]{4})")) {
dateFormat = "MMddyyyy";
} else if (tempDate.matches("([0-31]{2})([0-12]{2})([0-9]{4})")) {
dateFormat = "ddMMyyyy";
} else if (tempDate.matches("([0-9]{4})([0-12]{2})([0-31]{2})")) {
dateFormat = "yyyyMMdd";
} else if (tempDate.matches("([0-9]{4})([0-31]{2})([0-12]{2})")) {
dateFormat = "yyyyddMM";
} else if (tempDate.matches("([0-31]{2})([a-z]{3})([0-9]{4})")) {
dateFormat = "ddMMMyyyy";
} else if (tempDate.matches("([a-z]{3})([0-31]{2})([0-9]{4})")) {
dateFormat = "MMMddyyyy";
} else if (tempDate.matches("([0-9]{4})([a-z]{3})([0-31]{2})")) {
dateFormat = "yyyyMMMdd";
} else if (tempDate.matches("([0-9]{4})([0-31]{2})([a-z]{3})")) {
dateFormat = "yyyyddMMM";
} else {
return "Pattern Not Added";
//add your required regex
}
try {
String formattedDate = new SimpleDateFormat(requiredFormat, Locale.ENGLISH).format(new SimpleDateFormat(dateFormat).parse(tempDate));
return formattedDate;
} catch (Exception e) {
//
return "";
}
}
A database is the main container, it contains the data and log files, and all the schemas within it. You always back up a database, it is a discrete unit on its own.
Schemas are like folders within a database, and are mainly used to group logical objects together, which leads to ease of setting permissions by schema.
drop schema test1
Msg 3729, Level 16, State 1, Line 1
Cannot drop schema 'test1' because it is being referenced by object 'copyme'.
You cannot drop a schema when it is in use. You have to first remove all objects from the schema.
Related reading:
The two snippets do different things, so it's not a matter of taste but a matter of what's the right behaviour in your context. Python documentation explains the difference, but here are some examples:
class Foo:
def __init__(self):
self.num = 1
This binds num
to the Foo instances. Change to this field is not propagated to other instances.
Thus:
>>> foo1 = Foo()
>>> foo2 = Foo()
>>> foo1.num = 2
>>> foo2.num
1
class Bar:
num = 1
This binds num
to the Bar class. Changes are propagated!
>>> bar1 = Bar()
>>> bar2 = Bar()
>>> bar1.num = 2 #this creates an INSTANCE variable that HIDES the propagation
>>> bar2.num
1
>>> Bar.num = 3
>>> bar2.num
3
>>> bar1.num
2
>>> bar1.__class__.num
3
If I do not require a class variable, but only need to set a default value for my instance variables, are both methods equally good? Or one of them more 'pythonic' than the other?
The code in exhibit B is plain wrong for this: why would you want to bind a class attribute (default value on instance creation) to the single instance?
The code in exhibit A is okay.
If you want to give defaults for instance variables in your constructor I would however do this:
class Foo:
def __init__(self, num = None):
self.num = num if num is not None else 1
...or even:
class Foo:
DEFAULT_NUM = 1
def __init__(self, num = None):
self.num = num if num is not None else DEFAULT_NUM
...or even: (preferrable, but if and only if you are dealing with immutable types!)
class Foo:
def __init__(self, num = 1):
self.num = num
This way you can do:
foo1 = Foo(4)
foo2 = Foo() #use default
Found the issue. Qt Creator wants you to use a compiler listed under one of their Qt libraries. Use the Maintenance Tool to install this.
To do so:
Go to Tools -> Options.... Select Build & Run on left. Open Kits tab. You should have Manual -> Desktop (default) line in list. Choose it. Now select something like Qt 5.5.1 in PATH (qt5) in Qt version combobox and click Apply button. From now you should be able to create, build and run empty Qt project.
var year1 = moment().format('YYYY');_x000D_
var year2 = moment().year();_x000D_
_x000D_
console.log('using format("YYYY") : ',year1);_x000D_
console.log('using year(): ',year2);_x000D_
_x000D_
// using javascript _x000D_
_x000D_
var year3 = new Date().getFullYear();_x000D_
console.log('using javascript :',year3);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js"></script>
_x000D_
It's possible, use the structure below:
<li><a><span></span></a></li>
<li><a><span></span></a></li>
etc...
Where the <li>
contains an <a>
anchor tag that contains a span as shown above. Then insert the following css:
position: relative;
<a>
tag a height
, width
<span>
width
& height
to 100%, so that both <a>
and <span>
have same dimensions<a>
and <span>
get position: relative;
.<a>
tag will have the 'OFF' background-position
, and the <span>
will have the 'ON' background-poisiton
.<span>
:hover
state use opacity 1 for <span>
-webkit
or -moz
transition on the <span>
elementYou'll have the ability to use the transition effect while still defaulting to the old background-position
swap. Don't forget to insert IE alpha filter.
var yourobj={
"c":{
"a":[{"name":"cable - black","value":2},{"name":"case","value":2}]
},
"o":{
"v":[{"name":"over the ear headphones - white/purple","value":1}]
},
"l":{
"e":[{"name":"lens cleaner","value":1}]
},
"h":{
"d":[{"name":"hdmi cable","value":1},
{"name":"hdtv essentials (hdtv cable setup)","value":1},
{"name":"hd dvd \u0026 blue-ray disc lens cleaner","value":1}]
}}
my solution
var obj = [];
for(n1 in yourjson)
for(n1_1 in yourjson[n])
for(n1_2 in yourjson[n][n1_1])
obj[n1_2[name]] = n1_2[value];
Approved code
for(n1 in yourobj){
for(n1_1 in yourobj[n1]){
for(n1_2 in yourobj[n1][n1_1]){
for(n1_3 in yourobj[n1][n1_1][n1_2]){
obj[yourobj[n1][n1_1][n1_2].name]=yourobj[n1][n1_1][n1_2].value;
}
}
}
}
console.log(obj);
result
*You should use distinguish accessorizes when using [] method or dot notation
They are not different from the point of view of JVM. Immutable objects don't have methods that can change the instance variables. And the instance variables are private; therefore you can't change it after you create it. A famous example would be String. You don't have methods like setString, or setCharAt. And s1 = s1 + "w" will create a new string, with the original one abandoned. That's my understanding.
The best solution I could find for this problem is to specify private key file in ansible.cfg (I usually keep it in the same folder as a playbook):
[defaults]
inventory=ec2.py
vault_password_file = ~/.vault_pass.txt
host_key_checking = False
private_key_file = /Users/eric/.ssh/secret_key_rsa
Though, it still sets private key globally for all hosts in playbook.
Note: You have to specify full path to the key file - ~user/.ssh/some_key_rsa silently ignored.
with open('path/to/file') as infile: # try open('...', 'rb') as well
answer = [line.strip().split(',') for line in infile]
If you want the numbers as int
s:
with open('path/to/file') as infile:
answer = [[int(i) for i in line.strip().split(',')] for line in infile]
Most common AD default design is to have a container, cn=users just after the root of the domain. Thus a DN might be:
cn=admin,cn=users,DC=domain,DC=company,DC=com
Also, you might have sufficient rights in an LDAP bind to connect anonymously, and query for (cn=admin)
. If so, you should get the full DN back in that query.
tl;dr:
concat
and append
currently sort the non-concatenation index (e.g. columns if you're adding rows) if the columns don't match. In pandas 0.23 this started generating a warning; pass the parameter sort=True
to silence it. In the future the default will change to not sort, so it's best to specify either sort=True
or False
now, or better yet ensure that your non-concatenation indices match.
The warning is new in pandas 0.23.0:
In a future version of pandas pandas.concat()
and DataFrame.append()
will no longer sort the non-concatenation axis when it is not already aligned. The current behavior is the same as the previous (sorting), but now a warning is issued when sort is not specified and the non-concatenation axis is not aligned,
link.
More information from linked very old github issue, comment by smcinerney :
When concat'ing DataFrames, the column names get alphanumerically sorted if there are any differences between them. If they're identical across DataFrames, they don't get sorted.
This sort is undocumented and unwanted. Certainly the default behavior should be no-sort.
After some time the parameter sort
was implemented in pandas.concat
and DataFrame.append
:
sort : boolean, default None
Sort non-concatenation axis if it is not already aligned when join is 'outer'. The current default of sorting is deprecated and will change to not-sorting in a future version of pandas.
Explicitly pass sort=True to silence the warning and sort. Explicitly pass sort=False to silence the warning and not sort.
This has no effect when join='inner', which already preserves the order of the non-concatenation axis.
So if both DataFrames have the same columns in the same order, there is no warning and no sorting:
df1 = pd.DataFrame({"a": [1, 2], "b": [0, 8]}, columns=['a', 'b'])
df2 = pd.DataFrame({"a": [4, 5], "b": [7, 3]}, columns=['a', 'b'])
print (pd.concat([df1, df2]))
a b
0 1 0
1 2 8
0 4 7
1 5 3
df1 = pd.DataFrame({"a": [1, 2], "b": [0, 8]}, columns=['b', 'a'])
df2 = pd.DataFrame({"a": [4, 5], "b": [7, 3]}, columns=['b', 'a'])
print (pd.concat([df1, df2]))
b a
0 0 1
1 8 2
0 7 4
1 3 5
But if the DataFrames have different columns, or the same columns in a different order, pandas returns a warning if no parameter sort
is explicitly set (sort=None
is the default value):
df1 = pd.DataFrame({"a": [1, 2], "b": [0, 8]}, columns=['b', 'a'])
df2 = pd.DataFrame({"a": [4, 5], "b": [7, 3]}, columns=['a', 'b'])
print (pd.concat([df1, df2]))
FutureWarning: Sorting because non-concatenation axis is not aligned.
a b
0 1 0
1 2 8
0 4 7
1 5 3
print (pd.concat([df1, df2], sort=True))
a b
0 1 0
1 2 8
0 4 7
1 5 3
print (pd.concat([df1, df2], sort=False))
b a
0 0 1
1 8 2
0 7 4
1 3 5
If the DataFrames have different columns, but the first columns are aligned - they will be correctly assigned to each other (columns a
and b
from df1
with a
and b
from df2
in the example below) because they exist in both. For other columns that exist in one but not both DataFrames, missing values are created.
Lastly, if you pass sort=True
, columns are sorted alphanumerically. If sort=False
and the second DafaFrame has columns that are not in the first, they are appended to the end with no sorting:
df1 = pd.DataFrame({"a": [1, 2], "b": [0, 8], 'e':[5, 0]},
columns=['b', 'a','e'])
df2 = pd.DataFrame({"a": [4, 5], "b": [7, 3], 'c':[2, 8], 'd':[7, 0]},
columns=['c','b','a','d'])
print (pd.concat([df1, df2]))
FutureWarning: Sorting because non-concatenation axis is not aligned.
a b c d e
0 1 0 NaN NaN 5.0
1 2 8 NaN NaN 0.0
0 4 7 2.0 7.0 NaN
1 5 3 8.0 0.0 NaN
print (pd.concat([df1, df2], sort=True))
a b c d e
0 1 0 NaN NaN 5.0
1 2 8 NaN NaN 0.0
0 4 7 2.0 7.0 NaN
1 5 3 8.0 0.0 NaN
print (pd.concat([df1, df2], sort=False))
b a e c d
0 0 1 5.0 NaN NaN
1 8 2 0.0 NaN NaN
0 7 4 NaN 2.0 7.0
1 3 5 NaN 8.0 0.0
In your code:
placement_by_video_summary = placement_by_video_summary.drop(placement_by_video_summary_new.index)
.append(placement_by_video_summary_new, sort=True)
.sort_index()
Have you tried the following:
SELECT ID, COUNT(*), max(date)
FROM table
GROUP BY ID;
Try to find out if DAO or the Repository pattern is most applicable to the following situation : Imagine you would like to provide a uniform data access API for a persistent mechanism to various types of data sources such as RDBMS, LDAP, OODB, XML repositories and flat files.
Also refer to the following links as well, if interested:
http://www.codeinsanity.com/2008/08/repository-pattern.html
http://blog.fedecarg.com/2009/03/15/domain-driven-design-the-repository/
http://devlicio.us/blogs/casey/archive/2009/02/20/ddd-the-repository-pattern.aspx
Assuming your field is a date
type (or similar):
SELECT DATE_ADD(`your_field_name`, INTERVAL 2 DAY)
FROM `table_name`;
With the example you've provided it could look like this:
UPDATE classes
SET `date` = DATE_ADD(`date` , INTERVAL 2 DAY)
WHERE `id` = 161;
This approach works with datetime
, too.
Here is another solution that is very easy to implement with 5 lines of code:
Example:
//This is an IE fix because pointer-events does not work in IE
$(document).on('mousedown', '.TopElement', function (e) {
$(this).hide();
var BottomElement = document.elementFromPoint(e.clientX, e.clientY);
$(this).show();
$(BottomElement).mousedown(); //Manually fire the event for desired underlying element
return false;
});
The steps for schedule jobs in Jenkins:
@midnight
Note: under the schedule field, can see the last and the next date-time run.
Jenkins also supports predefined aliases to schedule build:
@hourly
, @daily
, @weekly
, @monthly
, @midnight
@hourly
--> Build every hour at the beginning of the hour --> 0 * * * *
@daily, @midnight
--> Build every day at midnight --> 0 0 * * *
@weekly
--> Build every week at midnight on Sunday morning --> 0 0 * * 0
@monthly
--> Build every month at midnight of the first day of the month --> 0 0 1 * *
I know this is an old question, but for anyone who have the same issue there is a newer and simpler solution: an "appendTo" option has been introduced in jQuery UI 1.10.0
http://api.jqueryui.com/dialog/#option-appendTo
$("#dialog").dialog({
appendTo: "form"
....
});
Go File -> New Project.
Select Web under Visual C#.
Select ASP.NET Web Application
select mvc
when solution is created, you will find resources getting added in solution in status bar of vs 2013.
Check property of Dll file --> system.web.mvc, it shows latest version (5.2.2.0)
but depending on your OS runtime version will be decided.
ssh -t 'command; bash -l'
will execute the command and then start up a login shell when it completes. For example:
ssh -t [email protected] 'cd /some/path; bash -l'
WARNING: setting this value too high may cause your system to experience a significant hiccup. The higher the value you set, the more virtual memory is allocated to the screen process when initiating the screen session. I set my ~/.screenrc to "defscrollback 123456789" and when I initiated a screen, my entire system froze up for a good 10 minutes before coming back to the point that I was able to kill the screen process (which was consuming 16.6GB of VIRT mem by then).
Update - a better version
This tool (https://github.com/mklepaczewski/git-clean-before-merge) will:
git pull
equivalents,git pull
equivalents,git pull
version,--pretend
option that will not modify any files.Old version
How this answer differ from other answers?
The method presented here removes only files that would be overwritten by merge. If you have other untracked (possibly ignored) files in the directory this method won't remove them.
The solution
This snippet will extract all untracked files that would be overwritten by git pull
and delete them.
git pull 2>&1|grep -E '^\s'|cut -f2-|xargs -I {} rm -rf "{}"
and then just do:
git pull
This is not git porcelain command so always double check what it would do with:
git pull 2>&1|grep -E '^\s'|cut -f2-|xargs -I {} echo "{}"
Explanation - because one liners are scary:
Here's a breakdown of what it does:
git pull 2>&1
- capture git pull
output and redirect it all to stdout so we can easily capture it with grep
.grep -E '^\s
- the intent is to capture the list of the untracked files that would be overwritten by git pull
. The filenames have a bunch of whitespace characters in front of them so we utilize it to get them.cut -f2-
- remove whitespace from the beginning of each line captured in 2.xargs -I {} rm -rf "{}"
- us xargs
to iterate over all files, save their name in "{}" and call rm
for each of them. We use -rf
to force delete and remove untracked directories.It would be great to replace steps 1-3 with porcelain command, but I'm not aware of any equivalent.
As mentioned in the above answer, by updating the bashrc file you can run the pycharm.sh from anywhere on the linux terminal.
But if you love the icon and wants the Desktop shortcuts for the Pycharm on Ubuntu OS then follow the Below steps,
Quick way to create Pycharm launcher.
1. Start Pycharm using the pycharm.sh cmd from anywhere on the terminal or start the pycharm.sh located under bin folder of the pycharm artifact.
2. Once the Pycharm application loads, navigate to tools menu and select “Create Desktop Entry..”
3. Check the box if you want the launcher for all users.
4. If you Check the box i.e “Create entry for all users”, you will be asked for your password.
5. A message should appear informing you that it was successful.
6. Now Restart Pycharm application and you will find Pycharm in Unity dash and Application launcher.."
There's lots of subtleties in setting up an efficient and high quality matrix class. Thankfully there's several good implementations floating about.
Think hard about whether you want a fixed size matrix class or a variable sized one. i.e. can you do this:
// These tend to be fast and allocated on the stack.
matrix<3,3> M;
or do you need to be able to do this
// These are slower but more flexible and partially allocated on the heap
matrix M(3,3);
There's good libraries that support either style, and some that support both. They have different allocation patterns and different performances.
If you want to code it yourself, then the template version requires some knowledge of templates (duh). And the dynamic one needs some hacks to get around lots of small allocations if used inside tight loops.
Spend some time to make it working for me.
Requirement:
single or comma separated list of e-mails with domains ending [email protected] or [email protected]
Controller:
$scope.email = {
EMAIL_FORMAT: /^\w+([\.-]?\w+)*@(list.)?gmail.com+((\s*)+,(\s*)+\w+([\.-]?\w+)*@(list.)?gmail.com)*$/,
EMAIL_FORMAT_HELP: "format as '[email protected]' or comma separated '[email protected], [email protected]'"
};
HTML:
<ng-form name="emailModal">
<div class="form-group row mb-3">
<label for="to" class="col-sm-2 text-right col-form-label">
<span class="form-required">*</span>
To
</label>
<div class="col-sm-9">
<input class="form-control" id="to"
name="To"
ng-required="true"
ng-pattern="email.EMAIL_FORMAT"
placeholder="{{email.EMAIL_FORMAT_HELP}}"
ng-model="mail.to"/>
<small class="text-muted" ng-show="emailModal.To.$error.pattern">wrong</small>
</div>
</div>
</ng-form>
I found good online regex testing tool. Covered my regex with tests:
Use the shift
method on array
>> x = [4,5,6]
=> [4, 5, 6]
>> x.shift
=> 4
>> x
=> [5, 6]
If you want to remove n starting elements you can use x.shift(n)
You can perform the following T-SQL command:
SELECT * FROM sys.dm_exec_sessions WHERE status = 'running';
The easiest way to add a text to a JFrame:
JFrame window = new JFrame("JFrame with text");
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
window.setLayout(new BorderLayout());
window.add(new JLabel("Hello World"), BorderLayout.CENTER);
window.pack();
window.setVisible(true);
window.setLocationRelativeTo(null);
JQuery version:
$('yourInputSelectorHere').val("<script>alert('test');<\/script>")
This is happen due to the id(auto increment filed missing). If you edit it in a text editor by adding a comma for the ID field this will be solved.
You can replicate those brackets in the left join:
LEFT JOIN bookings
ON rooms.id = bookings.room_type_id
AND ( bookings.arrival between ? and ?
OR bookings.departure between ? and ? )
is
->leftJoin('bookings', function($join){
$join->on('rooms.id', '=', 'bookings.room_type_id');
$join->on(DB::raw('( bookings.arrival between ? and ? OR bookings.departure between ? and ? )'), DB::raw(''), DB::raw(''));
})
You'll then have to set the bindings later using "setBindings" as described in this SO post: How to bind parameters to a raw DB query in Laravel that's used on a model?
It's not pretty but it works.
The default behaviour is false:
By default, ApplicationContext implementations eagerly create and configure all singleton beans as part of the initialization process. Generally, this pre-instantiation is desirable, because errors in the configuration or surrounding environment are discovered immediately, as opposed to hours or even days later. When this behavior is not desirable, you can prevent pre-instantiation of a singleton bean by marking the bean definition as lazy-initialized. A lazy-initialized bean tells the IoC container to create a bean instance when it is first requested, rather than at startup.
When you use the parameter "--save" your dependency will go inside the #1 below in package.json. When you use the parameter "--save-dev" your dependency will go inside the #2 below in package.json.
#1. "dependencies": these packages are required by your application in production.
#2. "devDependencies": these packages are only needed for development and testing
Message msg = Message.obtain(null, 2, 0, 0);
Bundle bundle = new Bundle();
bundle.putString("url", url);
bundle.putString("names", names);
bundle.putString("captions",captions);
msg.setData(bundle);
So you send it to the service. Afterward receive.
No there is no built-in support for this.
You have to make your own "INIFileReader". Maybe something like this?
var data = new Dictionary<string, string>();
foreach (var row in File.ReadAllLines(PATH_TO_FILE))
data.Add(row.Split('=')[0], string.Join("=",row.Split('=').Skip(1).ToArray()));
Console.WriteLine(data["ServerName"]);
Edit: Updated to reflect Paul's comment.
Here is the generic solution I use. It solves the problem for importing from modules in the same folder:
import os.path
import sys
sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
Put this at top of the module which gives the error "No module named xxxx"
roenving is correct BUT you need to change the test to:
if(element.nodeType == 1) { //code }
because nodeType of 3 is actually a text node and nodeType of 1 is an HTML element. See http://www.w3schools.com/Dom/dom_nodetype.asp
In my case the problem was coming through the application pool. Try to change your application pool ASP.NET v4.0.
Personally, I use Emacs with hexl-mod.
Emacs is able to work with really huge files. You can use search/replace value easily. Finally, you can use 'ediff' to do some diffs.
Natively the only way is by creating an <input type="file">
element and then simulating a click, unfortunately.
There's a tiny plugin (shameless plug) which will take the pain away of having to do this all the time: file-dialog
fileDialog()
.then(file => {
const data = new FormData()
data.append('file', file[0])
data.append('imageName', 'flower')
// Post to server
fetch('/uploadImage', {
method: 'POST',
body: data
})
})
You can check that theHref
is defined by checking against undefined.
if (undefined !== theHref && theHref.length) {
// `theHref` is not undefined and has truthy property _length_
// do stuff
} else {
// do other stuff
}
If you want to also protect yourself against falsey values like null
then check theHref
is truthy, which is a little shorter
if (theHref && theHref.length) {
// `theHref` is truthy and has truthy property _length_
}
To initialize long you need to append "L" to the end.
It can be either uppercase or lowercase.
All the numeric values are by default int
. Even when you do any operation of byte
with any integer, byte
is first promoted to int
and then any operations are performed.
Try this
byte a = 1; // declare a byte
a = a*2; // you will get error here
You get error because 2
is by default int
.
Hence you are trying to multiply byte
with int
.
Hence result gets typecasted to int
which can't be assigned back to byte
.
Syntactic sugar, makes it more obvious to the casual reader that the join isn't an inner one.
MyServiceClient client = new MyServiceClient(binding, endpoint);
client.Endpoint.Address = new EndpointAddress("net.tcp://localhost/webSrvHost/service.svc");
client.Endpoint.Binding = new NetTcpBinding()
{
Name = "yourTcpBindConfig",
ReaderQuotas = XmlDictionaryReaderQuotas.Max,
ListenBacklog = 40 }
It's very easy to modify the uri in config or binding info in config. Is this what you want?
This worked for me:
Seems like something went south when I originally created the site. I hate solutions that are similar to "Restart your machine, then reinstall windows" without knowing what caused the error. But, this worked for me. Quick and simple. Hope it helps someone else.
package com.raj.samplestring;
/**
* @author gnagara
*/
public class SampleString {
/**
* @param args
*/
public static void main(String[] args) {
String[] stringArray;
String givenString = "ramu is Arr Good boy";
stringArray = givenString.split(" ");
for(int i=0; i<stringArray.length;i++){
if(!Character.isUpperCase(stringArray[i].charAt(0))){
Character c = stringArray[i].charAt(0);
Character change = Character.toUpperCase(c);
StringBuffer ss = new StringBuffer(stringArray[i]);
ss.insert(0, change);
ss.deleteCharAt(1);
stringArray[i]= ss.toString();
}
}
for(String e:stringArray){
System.out.println(e);
}
}
}
The difference between Func
and Action
is simply whether you want the delegate to return a value (use Func
) or not (use Action
).
Func
is probably most commonly used in LINQ - for example in projections:
list.Select(x => x.SomeProperty)
or filtering:
list.Where(x => x.SomeValue == someOtherValue)
or key selection:
list.Join(otherList, x => x.FirstKey, y => y.SecondKey, ...)
Action
is more commonly used for things like List<T>.ForEach
: execute the given action for each item in the list. I use this less often than Func
, although I do sometimes use the parameterless version for things like Control.BeginInvoke
and Dispatcher.BeginInvoke
.
Predicate
is just a special cased Func<T, bool>
really, introduced before all of the Func
and most of the Action
delegates came along. I suspect that if we'd already had Func
and Action
in their various guises, Predicate
wouldn't have been introduced... although it does impart a certain meaning to the use of the delegate, whereas Func
and Action
are used for widely disparate purposes.
Predicate
is mostly used in List<T>
for methods like FindAll
and RemoveAll
.
RelativeLayout layout = new RelativeLayout(this);
RelativeLayout.LayoutParams labelLayoutParams = new RelativeLayout.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
layout.setLayoutParams(labelLayoutParams);
// If you want to add some controls in this Relative Layout
labelLayoutParams = new RelativeLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
labelLayoutParams.addRule(RelativeLayout.CENTER_IN_PARENT);
ImageView mImage = new ImageView(this);
mImage.setBackgroundResource(R.drawable.popupnew_bg);
layout.addView(mImage,labelLayoutParams);
setContentView(layout);
mod = a % b
This stores the result of a mod b
in the variable mod
.
And you are right, 15 mod 4
is 3, which is exactly what python returns:
>>> 15 % 4
3
a %= b
is also valid.
Runtime.getRuntime().exec
allocates the process with the same amount of memory as the main. If you had you heap set to 1GB and try to exec then it will allocate another 1GB for that process to run.
Using EntityFramework.Plus could be an option:
dbContext.Employ.Where(e => e.Id == 1).Delete();
More examples are available here
You have to modify the php.ini files in your xampp folder. Three files in three different places need to be changed.
Follow the following steps to enable curl library with XAMPP in Windows:
Browse and open the following 3 files
C:\Program Files\xampp\apache\bin\php.ini
C:\Program Files\xampp\php\php.ini
C:\Program Files\xampp\php\php4\php.ini
Uncomment the following line in your php.ini file by removing the semicolon (;).
;extension=php_curl.dll
After that it will look something like something below-
extension=php_curl.dll
Restart your Apache server.
Check your phpinfo()
to see whether curl has properly enabled or not.
Enjoy using curl() library.
Use DateTime.AddDays()
(MSDN Documentation DateTime.AddDays Method).
DateTime tomorrow = DateTime.Now.AddDays(1);
DateTime yesterday = DateTime.Now.AddDays(-1);
var output = emails.Where(e => domains.All(d => !e.EndsWith(d)));
Or if you prefer:
var output = emails.Where(e => !domains.Any(d => e.EndsWith(d)));
As of jQuery 1.7, the .on()
method is the preferred method for attaching event handlers to a document. For earlier versions, the .bind()
method is used for attaching an event handler directly to elements.
$(document).on('mouseover mouseout',".brand", function () {
$(".star").toggleClass("hovered");
})
In your current code, what Dictionary.update()
does is that it updates (update means the value is overwritten from the value for same key in passed in dictionary) the keys in current dictionary with the values from the dictionary passed in as the parameter to it (adding any new key:value pairs if existing) . A single flat dictionary does not satisfy your requirement , you either need a list of dictionaries or a dictionary with nested dictionaries.
If you want a list of dictionaries (where each element in the list would be a diciotnary of a entry) then you can make case_list
as a list and then append case
to it (instead of update) .
Example -
case_list = []
for entry in entries_list:
case = {'key1': entry[0], 'key2': entry[1], 'key3':entry[2] }
case_list.append(case)
Or you can also have a dictionary of dictionaries with the key of each element in the dictionary being entry1
or entry2
, etc and the value being the corresponding dictionary for that entry.
case_list = {}
for entry in entries_list:
case = {'key1': value, 'key2': value, 'key3':value }
case_list[entryname] = case #you will need to come up with the logic to get the entryname.
It's probably easiest to create your query object directly as:
Test.find({
$and: [
{ $or: [{a: 1}, {b: 1}] },
{ $or: [{c: 1}, {d: 1}] }
]
}, function (err, results) {
...
}
But you can also use the Query#and
helper that's available in recent 3.x Mongoose releases:
Test.find()
.and([
{ $or: [{a: 1}, {b: 1}] },
{ $or: [{c: 1}, {d: 1}] }
])
.exec(function (err, results) {
...
});
You could use MSI API to enumerate everything installed by Windows Installer but that won't list all the software available on a machine. Without knowing more about what you need I think the concept of "installed" is a little vague. There are many ways to deploy software to a system ranging from big complicated installers to ZIP files and everything in between.
Reflection.
using System.Reflection;
Vendor vendor = new Vendor();
object tag = vendor.Tag;
Type tagt = tag.GetType();
FieldInfo field = tagt.GetField("test");
string value = field.GetValue(tag);
Use the power wisely. Don't forget error checking. :)
What about 1.1E10, +1, -0, etc? Parsing all possible numbers is trickier than many people think. If you want to include as many numbers are possible you should use the to_number function in a PL/SQL function. From http://www.oracle-developer.net/content/utilities/is_number.sql:
CREATE OR REPLACE FUNCTION is_number (str_in IN VARCHAR2) RETURN NUMBER IS
n NUMBER;
BEGIN
n := TO_NUMBER(str_in);
RETURN 1;
EXCEPTION
WHEN VALUE_ERROR THEN
RETURN 0;
END;
/
First, You will need to import sys
sys - System-specific parameters and functions
This module provides access to certain variables used and maintained by the interpreter, and to functions that interact strongly with the interpreter. This module is still available. I will edit this post in case this module is not working anymore.
And then, you can print the numbers of arguments or what you want here, the list of arguments.
Follow the script below :
#!/usr/bin/python
import sys
print 'Number of arguments entered :' len(sys.argv)
print 'Your argument list :' str(sys.argv)
Then, run your python script :
$ python arguments_List.py chocolate milk hot_Chocolate
And you will have the result that you were asking :
Number of arguments entered : 4
Your argument list : ['arguments_List.py', 'chocolate', 'milk', 'hot_Chocolate']
Hope that helped someone.
iOs 10+ allow video autoplay inline. but you have to turn off "Low power mode" on your iPhone.
The .net framework supports JSON through JavaScriptSerializer. Here is a good example to get you started.
using System.Collections.Generic;
using System.Web.Script.Serialization;
namespace GoogleTranslator.GoogleJSON
{
public class FooTest
{
public void Test()
{
const string json = @"{
""DisplayFieldName"" : ""ObjectName"",
""FieldAliases"" : {
""ObjectName"" : ""ObjectName"",
""ObjectType"" : ""ObjectType""
},
""PositionType"" : ""Point"",
""Reference"" : {
""Id"" : 1111
},
""Objects"" : [
{
""Attributes"" : {
""ObjectName"" : ""test name"",
""ObjectType"" : ""test type""
},
""Position"" :
{
""X"" : 5,
""Y"" : 7
}
}
]
}";
var ser = new JavaScriptSerializer();
ser.Deserialize<Foo>(json);
}
}
public class Foo
{
public Foo() { Objects = new List<SubObject>(); }
public string DisplayFieldName { get; set; }
public NameTypePair FieldAliases { get; set; }
public PositionType PositionType { get; set; }
public Ref Reference { get; set; }
public List<SubObject> Objects { get; set; }
}
public class NameTypePair
{
public string ObjectName { get; set; }
public string ObjectType { get; set; }
}
public enum PositionType { None, Point }
public class Ref
{
public int Id { get; set; }
}
public class SubObject
{
public NameTypePair Attributes { get; set; }
public Position Position { get; set; }
}
public class Position
{
public int X { get; set; }
public int Y { get; set; }
}
}
I use the next code to make a file copy (e.g. test.txt
) before replacing:
cd /d %~dp0
set backupDir=%date:~7,2%-%date:~-10,2%-%date:~-2,2%_%time:~0,2%.%time:~3,2%.%time:~6,2%
echo make dir %backupDir% ...
md "%backupDir%"
copy test.txt %backupDir%
It creates directory in format DD-MM-YY_HH.MM.SS
and places text.txt
there.
Time with seconds in the name is necessary to create directory without additional verification.
Try this:
#yourElementId
{
background: url(yourImageLocation.jpg) no-repeat center center;
width: 100px;
height: 100px;
}
Keep in mind that width
and height
will only work if your DOM element has layout (a block displayed element, like a div
or an img
). If it is not (a span, for example), add display: block;
to the CSS rules. If you do not have access to the CSS files, drop the styles inline in the element.
The previous explanations are all overly detailed and complicated IMO. Put simply, OAuth 2 delegates security to the HTTPS protocol. OAuth 1 did not require this and consequentially had alternative methods to deal with various attacks. These methods required the application to engage in certain security protocols which are complicated and can be difficult to implement. Therefore, it is simpler to just rely on the HTTPS for security so that application developers dont need to worry about it.
As to your other questions, the answer depends. Some services dont want to require the use of HTTPS, were developed before OAuth 2, or have some other requirement which may prevent them from using OAuth 2. Furthermore, there has been a lot of debate about the OAuth 2 protocol itself. As you can see, Facebook, Google, and a few others each have slightly varying versions of the protocols implemented. So some people stick with OAuth 1 because it is more uniform across the different platforms. Recently, the OAuth 2 protocol has been finalized but we have yet to see how its adoption will take.
Many say it is not possible, I would go one step further and say it is not meaningfull.
A static member is something that does not relate to any instance, only to the class.
A virtual member is something that does not relate directly to any class, only to an instance.
So a static virtual member would be something that does not relate to any instance or any class.
Use .combine_first
.
df['Period'] = df['Year'].combine_first(df['Quarter'])
Maybe you can try pyshmht, sharing memory based hash table extension for Python.
Notice
It's not fully tested, just for your reference.
It currently lacks lock/sem mechanisms for multiprocessing.
instance.__class__.__name__
example:
>>> class A():
pass
>>> a = A()
>>> a.__class__.__name__
'A'
Watch this... http://www.asp.net/mvc/videos/mvc-2/how-do-i/aspnet-mvc-2-areas
Then this picture (hope u like my drawings)
The free version of TightVnc viewer (I have TightVnc Viewer 1.5.4 8/3/2011) build does not support this. What you need is RealVNC but VNC Enterprise Edition 4.2 or the Personal Edition. Unfortunately this is not free and you have to pay for a license.
From the RealVNC website [releasenote] http://www.realvnc.com/products/enterprise/4.2/release-notes.html
VNC Viewer: Full-screen mode can span monitors on a multi-monitor system.
For all struggling around with the #selector in Swift 3 or Swift 4, here a full code example:
// WE NEED A CLASS THAT SHOULD RECEIVE NOTIFICATIONS
class MyReceivingClass {
// ---------------------------------------------
// INIT -> GOOD PLACE FOR REGISTERING
// ---------------------------------------------
init() {
// WE REGISTER FOR SYSTEM NOTIFICATION (APP WILL RESIGN ACTIVE)
// Register without parameter
NotificationCenter.default.addObserver(self, selector: #selector(MyReceivingClass.handleNotification), name: .UIApplicationWillResignActive, object: nil)
// Register WITH parameter
NotificationCenter.default.addObserver(self, selector: #selector(MyReceivingClass.handle(withNotification:)), name: .UIApplicationWillResignActive, object: nil)
}
// ---------------------------------------------
// DE-INIT -> LAST OPTION FOR RE-REGISTERING
// ---------------------------------------------
deinit {
NotificationCenter.default.removeObserver(self)
}
// either "MyReceivingClass" must be a subclass of NSObject OR selector-methods MUST BE signed with '@objc'
// ---------------------------------------------
// HANDLE NOTIFICATION WITHOUT PARAMETER
// ---------------------------------------------
@objc func handleNotification() {
print("RECEIVED ANY NOTIFICATION")
}
// ---------------------------------------------
// HANDLE NOTIFICATION WITH PARAMETER
// ---------------------------------------------
@objc func handle(withNotification notification : NSNotification) {
print("RECEIVED SPECIFIC NOTIFICATION: \(notification)")
}
}
In this example we try to get POSTs from AppDelegate (so in AppDelegate implement this):
// ---------------------------------------------
// WHEN APP IS GOING TO BE INACTIVE
// ---------------------------------------------
func applicationWillResignActive(_ application: UIApplication) {
print("POSTING")
// Define identifiyer
let notificationName = Notification.Name.UIApplicationWillResignActive
// Post notification
NotificationCenter.default.post(name: notificationName, object: nil)
}
import pandas as pd
data = pd.read_csv('data.csv')
# read row line by line
for d in data.values:
# read column by index
print(d[2])
My version using fgrep
FOUND=`fgrep -c "FOUND" $VALIDATION_FILE`
if [ $FOUND -eq 0 ]; then
echo "Not able to find"
else
echo "able to find"
fi
If you define your function to take argument of std::vector<int>& arr
and integer value, then you can use push_back
inside that function:
void do_something(int el, std::vector<int>& arr)
{
arr.push_back(el);
//....
}
usage:
std::vector<int> arr;
do_something(1, arr);
Are we talking about standard java.io.FileReader
? Won't work, but it's not hard without it.
/src/main/resources
maven directory contents are placed in the root of your CLASSPATH, so you can simply retrieve it using:
InputStream is = getClass().getResourceAsStream("/storedProcedures.sql");
If the result is not null
(resource not found), feel free to wrap it in a reader:
Reader reader = new InputStreamReader(is);
For me rollbackFor was not enough, so I had to put this and it works as expected:
@Transactional(propagation = Propagation.REQUIRED, readOnly = false, rollbackFor = Exception.class)
I hope it helps :-)
You can also use this code to get LayoutInflater:
LayoutInflater li = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE)
=
operatorWe can use the public member function std::vector::operator=
of the container std::vector
for assigning values from a vector to another.
Besides, a constructor function also makes sense. A constructor function with another vector as parameter(e.g. x
) constructs a container with a copy of each of the elements in x
, in the same order.
std::vector::swap
std::vector::swap
is not copying a vector to another, it is actually swapping elements of two vectors, just as its name suggests. In other words, the source vector to copy from is modified after std::vector::swap
is called, which is probably not what you are expected.
If the elements in the source vector are pointers to other data, then a deep copy is wanted sometimes.
According to wikipedia:
A deep copy, meaning that fields are dereferenced: rather than references to objects being copied, new copy objects are created for any referenced objects, and references to these placed in B.
Actually, there is no currently a built-in way in C++ to do a deep copy. All of the ways mentioned above are shallow. If a deep copy is necessary, you can traverse a vector and make copy of the references manually. Alternatively, an iterator can be considered for traversing. Discussion on iterator is beyond this question.
If you have a folder and sub-folder full of wav's you want to convert, put below command in a file, save it in a .bat file in the root of the folder where you wan to convert, and then run the bat file
for /R %%g in (*.wav) do start /b /wait "" "C:\ffmpeg-4.0.1-win64-static\bin\ffmpeg" -threads 16 -i "%%g" -acodec libmp3lame "%%~dpng.mp3" && del "%%g"
If you want to write the program in pure Java you can follow the below method or there are many String Utils to help you better with more advanced features.
Using a simple static method you can achieve this as below.
public static String addLeadingText(int length, String pad, String value) {
String text = value;
for (int x = 0; x < length - value.length(); x++) text = pad + text;
return text;
}
You can use the above method addLeadingText(length, padding text, your text)
addLeadingText(8, "0", "Apple");
The output would be 000Apple