If anyone facing similar type of error while adding ShimmerRecyclerView Loader in android , make sure to add maven { url "https://jitpack.io" }
under allprojects like below.
allprojects {
repositories {
google()
jcenter()
//add it here
maven { url "https://jitpack.io" }
}
}
If you use CMake you have to set WIN32 flag in add_executable
add_executable(${name} WIN32 ${source_files})
See CMake Doc for more information.
Some supplementary info. Both flag and interrupt are suggested in the Java doc.
https://docs.oracle.com/javase/8/docs/technotes/guides/concurrency/threadPrimitiveDeprecation.html
private volatile Thread blinker;
public void stop() {
blinker = null;
}
public void run() {
Thread thisThread = Thread.currentThread();
while (blinker == thisThread) {
try {
Thread.sleep(interval);
} catch (InterruptedException e){
}
repaint();
}
}
For a thread that waits for long periods (e.g., for input), use Thread.interrupt
public void stop() {
Thread moribund = waiter;
waiter = null;
moribund.interrupt();
}
I came across these links:
http://mail.openjdk.java.net/pipermail/core-libs-dev/2009-May/001689.html
http://www.nabble.com/Review-request-for-5049299-td23667680.html
Seems to be a bug. Usage of a spawn() trick instead of the plain fork()/exec() is advised.
What you are trying to do is simply not possible from an app (at least not on a non-rooted/non-modified device). The message "NFC tag type not supported" is displayed by the Android system (or more specifically the NFC system service) before and instead of dispatching the tag to your app. This means that the NFC system service filters MIFARE Classic tags and never notifies any app about them. Consequently, your app can't detect MIFARE Classic tags or circumvent that popup message.
On a rooted device, you may be able to bypass the message using either
the CSC (Consumer Software Customization) feature configuration files on the system partition (see /system/csc/. The NFC system service disables the popup and dispatches MIFARE Classic tags to apps if the CSC feature <CscFeature_NFC_EnableSecurityPromptPopup>
is set to any value but "mifareclassic" or "all". For instance, you could use:
<CscFeature_NFC_EnableSecurityPromptPopup>NONE</CscFeature_NFC_EnableSecurityPromptPopup>
You could add this entry to, for instance, the file "/system/csc/others.xml" (within the section <FeatureSet> ... </FeatureSet>
that already exists in that file).
Since, you asked for the Galaxy S6 (the question that you linked) as well: I have tested this method on the S4 when it came out. I have not verified if this still works in the latest firmware or on other devices (e.g. the S6).
This is pure guessing, but according to this (link no longer available), it seems that some apps (e.g. NXP TagInfo) are capable of detecting MIFARE Classic tags on affected Samsung devices since Android 4.4. This might mean that foreground apps are capable of bypassing that popup using the reader-mode API (see NfcAdapter.enableReaderMode
) possibly in combination with NfcAdapter.FLAG_READER_SKIP_NDEF_CHECK
.
Try turning the IEnumerable
into a List
. From this point on you will be able to use List
's Remove
method to remove items.
To pass it as a param to the Remove
method using Linq you can get the item by the following methods:
users.Single(x => x.userId == 1123)
users.First(x => x.userId == 1123)
The code is as follows:
users = users.ToList(); // Get IEnumerable as List
users.Remove(users.First(x => x.userId == 1123)); // Remove item
// Finished
Modern browsers support 'DOUBLE VERTICAL BAR' (U+23F8), too:
http://www.fileformat.info/info/unicode/char/23f8/index.htm
For a music player it can act as a companion for 'BLACK RIGHT-POINTING POINTER' (U+25BA) because they both share equal width and height making it perfect for a play/pause button:
iframe srcdoc: This attribute contains HTML content, which will override src attribute. If a browser does not support the srcdoc attribute, it will fall back to the URL in the src attribute.
Let's understand it with an example
<iframe
name="my_iframe"
srcdoc="<h1 style='text-align:center; color:#9600fa'>Welcome to iframes</h1>"
src="https://www.birthdaycalculatorbydate.com/"
width="500px"
height="200px"
></iframe>
Original content is taken from iframes.
calling a function is simple ..
myFunction();
so your code will be something like..
$(function(){
$('#elementID').click(function(){
myFuntion(); //this will call your function
});
});
$(function(){
$('#elementID').click( myFuntion );
});
or with some condition
if(something){
myFunction(); //this will call your function
}
just to be complete, in Bootstrap 4.0.0-beta using .show worked for me...
<li>
<a href="#Products" data-toggle="collapse" data-target=".navbar-collapse.show">Products</a>
</li>
Following yet again on the use of a custom aggregate function of string concatenation: you need to remember that the select statement will place rows in any order, so you will need to do a sub select in the from statement with an order by clause, and then an outer select with a group by clause to aggregate the strings, thus:
SELECT custom_aggregate(MY.special_strings)
FROM (SELECT special_strings, grouping_column
FROM a_table
ORDER BY ordering_column) MY
GROUP BY MY.grouping_column
For the rows containing strings, I can convert them to strings as in changing
tmpStr = nameItem("lastname") + " " + nameItem("initials")
to
tmpStr = myItem("lastname").toString + " " + myItem("intials").toString
For the comparison in the if statement myItem("sID")=sID, it needs to be change to
myItem("sID").Equals(sID)
Then the code will run without any runtime errors due to vbNull data.
Comparision:
if (userProfile.AccountType == AccountType.Retailer)
{
//your code
}
In case to prevent the NullPointerException you could add the following condition before comparing the AccountType:
if(userProfile != null)
{
if (userProfile.AccountType == AccountType.Retailer)
{
//your code
}
}
or shorter version:
if (userProfile !=null && userProfile.AccountType == AccountType.Retailer)
{
//your code
}
You can use GCD to dispatch the scroll into the next iteration of main run loop in viewDidLoad to achieve this behavior. The scroll will be performed before the collection view is showed on screen, so there will be no flashing.
- (void)viewDidLoad {
dispatch_async (dispatch_get_main_queue (), ^{
NSIndexPath *indexPath = YOUR_DESIRED_INDEXPATH;
[self.collectionView scrollToItemAtIndexPath:indexPath atScrollPosition:UICollectionViewScrollPositionCenteredHorizontally animated:NO];
});
}
Most of the answers here are using built-in methods or using libraries/frameworks. This simple method should work fine:
function copy(x) {
return JSON.parse( JSON.stringify(x) );
}
// Usage
var a = 'some';
var b = copy(a);
a += 'thing';
console.log(b); // "some"
var c = { x: 1 };
var d = copy(c);
c.x = 2;
console.log(d); // { x: 1 }
Based on the answer by elysch, here is a solution for multiple schemas:
DO $$
DECLARE
r record;
i int;
v_schema text[] := '{public,schema1,schema2,schema3}';
v_new_owner varchar := 'my_new_owner';
BEGIN
FOR r IN
select 'ALTER TABLE "' || table_schema || '"."' || table_name || '" OWNER TO ' || v_new_owner || ';' as a from information_schema.tables where table_schema = ANY (v_schema)
union all
select 'ALTER TABLE "' || sequence_schema || '"."' || sequence_name || '" OWNER TO ' || v_new_owner || ';' as a from information_schema.sequences where sequence_schema = ANY (v_schema)
union all
select 'ALTER TABLE "' || table_schema || '"."' || table_name || '" OWNER TO ' || v_new_owner || ';' as a from information_schema.views where table_schema = ANY (v_schema)
union all
select 'ALTER FUNCTION "'||nsp.nspname||'"."'||p.proname||'"('||pg_get_function_identity_arguments(p.oid)||') OWNER TO ' || v_new_owner || ';' as a from pg_proc p join pg_namespace nsp ON p.pronamespace = nsp.oid where nsp.nspname = ANY (v_schema)
union all
select 'ALTER DATABASE "' || current_database() || '" OWNER TO ' || v_new_owner
LOOP
EXECUTE r.a;
END LOOP;
FOR i IN array_lower(v_schema,1) .. array_upper(v_schema,1)
LOOP
EXECUTE 'ALTER SCHEMA "' || v_schema[i] || '" OWNER TO ' || v_new_owner ;
END LOOP;
END
$$;
If you are looking for a SwiftUI 2.0 solution that uses View
Struct, here it is:
https://github.com/kenfai/KavSoft-Tutorials-iOS/tree/main/MapsBottomSheet
The easiest way is to include the gem 'activesupport' (or gem 'active_support').
params.slice(:choice1, :choice2, :choice3)
Wow. Good grief. It's because I had an env value with a space in it, not surrounded by quotes
This
SITE_NAME=My website
Changed to this
SITE_NAME="My website"
Fixed it. I think this had to do with Laravel 5.2 now upgrading vlucas/phpdotenv from 1.1.1 to 2.1.0
Try this, just an example:
u.UserTypeOptions = new SelectList(new[]
{
new { ID="1", Name="name1" },
new { ID="2", Name="name2" },
new { ID="3", Name="name3" },
}, "ID", "Name", 1);
Or
u.UserTypeOptions = new SelectList(new List<SelectListItem>
{
new SelectListItem { Selected = true, Text = string.Empty, Value = "-1"},
new SelectListItem { Selected = false, Text = "Homeowner", Value = "2"},
new SelectListItem { Selected = false, Text = "Contractor", Value = "3"},
},"Value","Text");
Depending on how often you use this in your code you could consider the following:
macro
#define SIGN(x) ( (x) >= 0 )
Inline function
inline int sign(int x)
{
return x >= 0;
}
Then you would just go:
bigInt.sign = sign(number);
Why not one more answer? setState()
and the setState()
-triggered render()
have both completed executing when you call componentDidMount()
(the first time render()
is executed) and/or componentDidUpdate()
(any time after render()
is executed). (Links are to ReactJS.org docs.)
Example with componentDidUpdate()
Caller, set reference and set state...
<Cmp ref={(inst) => {this.parent=inst}}>;
this.parent.setState({'data':'hello!'});
Render parent...
componentDidMount() { // componentDidMount() gets called after first state set
console.log(this.state.data); // output: "hello!"
}
componentDidUpdate() { // componentDidUpdate() gets called after all other states set
console.log(this.state.data); // output: "hello!"
}
Example with componentDidMount()
Caller, set reference and set state...
<Cmp ref={(inst) => {this.parent=inst}}>
this.parent.setState({'data':'hello!'});
Render parent...
render() { // render() gets called anytime setState() is called
return (
<ChildComponent
state={this.state}
/>
);
}
After parent rerenders child, see state in componentDidUpdate()
.
componentDidMount() { // componentDidMount() gets called anytime setState()/render() finish
console.log(this.props.state.data); // output: "hello!"
}
I'm not entirely sure of the general purpose of the function, but you could always do this:
function getMachine(color, qty) {
var retval;
$("#getMachine li").each(function() {
var thisArray = $(this).text().split("~");
if(thisArray[0] == color&& qty>= parseInt(thisArray[1]) && qty<= parseInt(thisArray[2])) {
retval = thisArray[3];
return false;
}
});
return retval;
}
var retval = getMachine(color, qty);
In order to check the maximum allowed connections, you can run the following query:
SHOW VARIABLES LIKE "max_connections";
To check the number of active connections, you can run the following query:
SHOW VARIABLES LIKE "max_used_connections";
Hope it helps.
JavaScript is case-sensitive. The b
in getElementbyId
should be capitalized.
var content = document.getElementById("edit").innerHTML;
The documentation says the following:
Microseconds (added in PHP 5.2.2). Note that date() will always generate 000000 since it takes an integer parameter, whereas DateTime::format() does support microseconds.
I.e., use DateTime instead.
I'm going to break from the herd on this one and provide an alternate point of view:
Never create classes.
Reliance on classes has a significant tendency to cause coders to create bloated and slow code. Classes getting passed around (since they're objects) take a lot more computational power than calling a function and passing a string or two. Proper naming conventions on functions can do pretty much everything creating a class can do, and with only a fraction of the overhead and better code readability.
That doesn't mean you shouldn't learn to understand classes though. If you're coding with others, people will use them all the time and you'll need to know how to juggle those classes. Writing your code to rely on functions means the code will be smaller, faster, and more readable. I've seen huge sites written using only functions that were snappy and quick, and I've seen tiny sites that had minimal functionality that relied heavily on classes and broke constantly. (When you have classes extending classes that contain classes as part of their classes, you know you've lost all semblance of easy maintainability.)
When it comes down to it, all data you're going to want to pass can easily be handled by the existing datatypes.
Classes were created as a mental crutch and provide no actual extra functionality, and the overly-complicated code they have a tendency to create defeats the point of that crutch in the long run.
I have actually followed this example and it worked for me :)
NameVirtualHost *:80
<VirtualHost *:80>
ServerName mysite.example.com
Redirect permanent / https://mysite.example.com/
</VirtualHost>
<VirtualHost _default_:443>
ServerName mysite.example.com
DocumentRoot /usr/local/apache2/htdocs
SSLEngine On
# etc...
</VirtualHost>
Then do:
/etc/init.d/httpd restart
Solution: Use unix command find
The find utility recursively descends the directory tree for each path listed, evaluating an expression (composed of the 'primaries' and 'operands') in terms of each file in the tree.
The Traditional Formula would be :
find <path> -flag <valueOfFlag>
Easy Examples
1.Find by Name - Find all package.json
from my current location subtree hierarchy.
find . -name "package.json"
2.Find by Name and Type - find all node_modules
directories from ALL file system (starting from root hierarchy )
sudo find / -name "node_modules" -type d
Complex Examples:
More Useful examples which can demonstrate the power of flag options and operators:
3.Regex and File Type - Find all javascript controllers variation names (using regex) javascript Files only in my app location.
find /user/dev/app -name "*contoller-*\.js" -type f
-type
f means file -name
related to regular expression to any variation of controller string and dash with .js
at the end
4.Depth - Find all routes patterns directories in app directory no more than 3 dimensions ( app/../../.. only and no more deeper)
find app -name "*route*" -type d -maxdepth 3
-type
d means directory -name
related to regular expression to any variation of route string -maxdepth
making the finder focusing on 3 subtree depth and no more <yourSearchlocation>/depth1/depth2/depth3
)
5.File Size , Ownership and OR Operator - Find all files with names 'sample' or 'test' under ownership of root user that greater than 1 Mega and less than 5 Mega.
find . \( -name "test" -or -name "sample" \) -user root -size +1M -size -5M
-size
threshold representing the range between more than (+) and less than (-) -user
representing the file owner -or
operator filters query for both regex matches
6.Empty Files - find all empty directories in file system
find / -type d -empty
7.Time Access, Modification and creation of files - find all files that were created/modified/access in directory in 10 days
# creation (c)
find /test -name "*.groovy" -ctime -10d
# modification (m)
find /test -name "*.java" -mtime -10d
# access (a)
find /test -name "*.js" -atime -10d
8.Modification Size Filter - find all files that were modified exactly between a week ago to 3 weeks ago and less than 500kb and present their sizes as a list
find /test -name "*.java" -mtime -3w -mtime +1w -size -500k | xargs du -h
A JUnit4 test with Autowired and bean mocking (Mockito):
// JUnit starts spring context
@RunWith(SpringRunner.class)
// spring load context configuration from AppConfig class
@ContextConfiguration(classes = AppConfig.class)
// overriding some properties with test values if you need
@TestPropertySource(properties = {
"spring.someConfigValue=your-test-value",
})
public class PersonServiceTest {
@MockBean
private PersonRepository repository;
@Autowired
private PersonService personService; // uses PersonRepository
@Test
public void testSomething() {
// using Mockito
when(repository.findByName(any())).thenReturn(Collection.emptyList());
Person person = new Person();
person.setName(null);
// when
boolean found = personService.checkSomething(person);
// then
assertTrue(found, "Something is wrong");
}
}
The problem is that you are calling toString()
on the InputStream
object itself. This will return a String
representation of the InputStream
object not the actual PDF document.
You want to read the PDF only as bytes as PDF is a binary format. You will then be able to write out that same byte
array and it will be a valid PDF as it has not been modified.
e.g. to read a file as bytes
File file = new File(sourcePath);
InputStream inputStream = new FileInputStream(file);
byte[] bytes = new byte[file.length()];
inputStream.read(bytes);
Enabling a previously-installed Sublime Text package
If you have a subdirectory under Sublime Text 2\Packages
for a package that isn't working, you may need to enable it.
Follow these steps to enable an installed package:
Preferences > Package Control > Enable Package
Xampp and Mamp Users
Had the same error while importing a database (after emptying it) trough MySQL. I found that i had a tablename.ibd
file left while all others were deleted.
I deleted it manually from mysql/data/database_name
and the error was gone.
Let me first repeat what others already said, by quoting from the article "Structured Programming with go to Statements" by Donald Knuth:
We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil.
Yet we should not pass up our opportunities in that critical 3%. A good programmer will not be lulled into complacency by such reasoning, he will be wise to look carefully at the critical code; but only after that code has been identified.
(emphasis by me)
So if you have identified that a seemingly trivial operation like the computation of the minimum of three numbers is the actual bottleneck (that is, the "critical 3%") in your application, then you may consider optimizing it.
And in this case, this is actually possible: The Math#min(double,double)
method in Java has very special semantics:
Returns the smaller of two double values. That is, the result is the value closer to negative infinity. If the arguments have the same value, the result is that same value. If either value is NaN, then the result is NaN. Unlike the numerical comparison operators, this method considers negative zero to be strictly smaller than positive zero. If one argument is positive zero and the other is negative zero, the result is negative zero.
One can have a look at the implementation, and see that it's actually rather complex:
public static double min(double a, double b) {
if (a != a)
return a; // a is NaN
if ((a == 0.0d) &&
(b == 0.0d) &&
(Double.doubleToRawLongBits(b) == negativeZeroDoubleBits)) {
// Raw conversion ok since NaN can't map to -0.0.
return b;
}
return (a <= b) ? a : b;
}
Now, it may be important to point out that this behavior is different from a simple comparison. This can easily be examined with the following example:
public class MinExample
{
public static void main(String[] args)
{
test(0.0, 1.0);
test(1.0, 0.0);
test(-0.0, 0.0);
test(Double.NaN, 1.0);
test(1.0, Double.NaN);
}
private static void test(double a, double b)
{
double minA = Math.min(a, b);
double minB = a < b ? a : b;
System.out.println("a: "+a);
System.out.println("b: "+b);
System.out.println("minA "+minA);
System.out.println("minB "+minB);
if (Double.doubleToRawLongBits(minA) !=
Double.doubleToRawLongBits(minB))
{
System.out.println(" -> Different results!");
}
System.out.println();
}
}
However: If the treatment of NaN
and positive/negative zero is not relevant for your application, you can replace the solution that is based on Math.min
with a solution that is based on a simple comparison, and see whether it makes a difference.
This will, of course, be application dependent. Here is a simple, artificial microbenchmark (to be taken with a grain of salt!)
import java.util.Random;
public class MinPerformance
{
public static void main(String[] args)
{
bench();
}
private static void bench()
{
int runs = 1000;
for (int size=10000; size<=100000; size+=10000)
{
Random random = new Random(0);
double data[] = new double[size];
for (int i=0; i<size; i++)
{
data[i] = random.nextDouble();
}
benchA(data, runs);
benchB(data, runs);
}
}
private static void benchA(double data[], int runs)
{
long before = System.nanoTime();
double sum = 0;
for (int r=0; r<runs; r++)
{
for (int i=0; i<data.length-3; i++)
{
sum += minA(data[i], data[i+1], data[i+2]);
}
}
long after = System.nanoTime();
System.out.println("A: length "+data.length+", time "+(after-before)/1e6+", result "+sum);
}
private static void benchB(double data[], int runs)
{
long before = System.nanoTime();
double sum = 0;
for (int r=0; r<runs; r++)
{
for (int i=0; i<data.length-3; i++)
{
sum += minB(data[i], data[i+1], data[i+2]);
}
}
long after = System.nanoTime();
System.out.println("B: length "+data.length+", time "+(after-before)/1e6+", result "+sum);
}
private static double minA(double a, double b, double c)
{
return Math.min(a, Math.min(b, c));
}
private static double minB(double a, double b, double c)
{
if (a < b)
{
if (a < c)
{
return a;
}
return c;
}
if (b < c)
{
return b;
}
return c;
}
}
(Disclaimer: Microbenchmarking in Java is an art, and for more reliable results, one should consider using JMH or Caliper).
Running this with JRE 1.8.0_31 may result in something like
....
A: length 90000, time 545.929078, result 2.247805342620906E7
B: length 90000, time 441.999193, result 2.247805342620906E7
A: length 100000, time 608.046928, result 2.5032781001456387E7
B: length 100000, time 493.747898, result 2.5032781001456387E7
This at least suggests that it might be possible to squeeze out a few percent here (again, in a very artifical example).
Analyzing this further, by looking at the hotspot disassembly output created with
java -server -XX:+UnlockDiagnosticVMOptions -XX:+TraceClassLoading -XX:+LogCompilation -XX:+PrintAssembly MinPerformance
one can see the optimized versions of both methods, minA
and minB
.
First, the output for the method that uses Math.min
:
Decoding compiled method 0x0000000002992310:
Code:
[Entry Point]
[Verified Entry Point]
[Constants]
# {method} {0x000000001c010910} 'minA' '(DDD)D' in 'MinPerformance'
# parm0: xmm0:xmm0 = double
# parm1: xmm1:xmm1 = double
# parm2: xmm2:xmm2 = double
# [sp+0x60] (sp of caller)
0x0000000002992480: mov %eax,-0x6000(%rsp)
0x0000000002992487: push %rbp
0x0000000002992488: sub $0x50,%rsp
0x000000000299248c: movabs $0x1c010cd0,%rsi
0x0000000002992496: mov 0x8(%rsi),%edi
0x0000000002992499: add $0x8,%edi
0x000000000299249c: mov %edi,0x8(%rsi)
0x000000000299249f: movabs $0x1c010908,%rsi ; {metadata({method} {0x000000001c010910} 'minA' '(DDD)D' in 'MinPerformance')}
0x00000000029924a9: and $0x3ff8,%edi
0x00000000029924af: cmp $0x0,%edi
0x00000000029924b2: je 0x00000000029924e8 ;*dload_0
; - MinPerformance::minA@0 (line 58)
0x00000000029924b8: vmovsd %xmm0,0x38(%rsp)
0x00000000029924be: vmovapd %xmm1,%xmm0
0x00000000029924c2: vmovapd %xmm2,%xmm1 ;*invokestatic min
; - MinPerformance::minA@4 (line 58)
0x00000000029924c6: nop
0x00000000029924c7: callq 0x00000000028c6360 ; OopMap{off=76}
;*invokestatic min
; - MinPerformance::minA@4 (line 58)
; {static_call}
0x00000000029924cc: vmovapd %xmm0,%xmm1 ;*invokestatic min
; - MinPerformance::minA@4 (line 58)
0x00000000029924d0: vmovsd 0x38(%rsp),%xmm0 ;*invokestatic min
; - MinPerformance::minA@7 (line 58)
0x00000000029924d6: nop
0x00000000029924d7: callq 0x00000000028c6360 ; OopMap{off=92}
;*invokestatic min
; - MinPerformance::minA@7 (line 58)
; {static_call}
0x00000000029924dc: add $0x50,%rsp
0x00000000029924e0: pop %rbp
0x00000000029924e1: test %eax,-0x27623e7(%rip) # 0x0000000000230100
; {poll_return}
0x00000000029924e7: retq
0x00000000029924e8: mov %rsi,0x8(%rsp)
0x00000000029924ed: movq $0xffffffffffffffff,(%rsp)
0x00000000029924f5: callq 0x000000000297e260 ; OopMap{off=122}
;*synchronization entry
; - MinPerformance::minA@-1 (line 58)
; {runtime_call}
0x00000000029924fa: jmp 0x00000000029924b8
0x00000000029924fc: nop
0x00000000029924fd: nop
0x00000000029924fe: mov 0x298(%r15),%rax
0x0000000002992505: movabs $0x0,%r10
0x000000000299250f: mov %r10,0x298(%r15)
0x0000000002992516: movabs $0x0,%r10
0x0000000002992520: mov %r10,0x2a0(%r15)
0x0000000002992527: add $0x50,%rsp
0x000000000299252b: pop %rbp
0x000000000299252c: jmpq 0x00000000028ec620 ; {runtime_call}
0x0000000002992531: hlt
0x0000000002992532: hlt
0x0000000002992533: hlt
0x0000000002992534: hlt
0x0000000002992535: hlt
0x0000000002992536: hlt
0x0000000002992537: hlt
0x0000000002992538: hlt
0x0000000002992539: hlt
0x000000000299253a: hlt
0x000000000299253b: hlt
0x000000000299253c: hlt
0x000000000299253d: hlt
0x000000000299253e: hlt
0x000000000299253f: hlt
[Stub Code]
0x0000000002992540: nop ; {no_reloc}
0x0000000002992541: nop
0x0000000002992542: nop
0x0000000002992543: nop
0x0000000002992544: nop
0x0000000002992545: movabs $0x0,%rbx ; {static_stub}
0x000000000299254f: jmpq 0x000000000299254f ; {runtime_call}
0x0000000002992554: nop
0x0000000002992555: movabs $0x0,%rbx ; {static_stub}
0x000000000299255f: jmpq 0x000000000299255f ; {runtime_call}
[Exception Handler]
0x0000000002992564: callq 0x000000000297b9e0 ; {runtime_call}
0x0000000002992569: mov %rsp,-0x28(%rsp)
0x000000000299256e: sub $0x80,%rsp
0x0000000002992575: mov %rax,0x78(%rsp)
0x000000000299257a: mov %rcx,0x70(%rsp)
0x000000000299257f: mov %rdx,0x68(%rsp)
0x0000000002992584: mov %rbx,0x60(%rsp)
0x0000000002992589: mov %rbp,0x50(%rsp)
0x000000000299258e: mov %rsi,0x48(%rsp)
0x0000000002992593: mov %rdi,0x40(%rsp)
0x0000000002992598: mov %r8,0x38(%rsp)
0x000000000299259d: mov %r9,0x30(%rsp)
0x00000000029925a2: mov %r10,0x28(%rsp)
0x00000000029925a7: mov %r11,0x20(%rsp)
0x00000000029925ac: mov %r12,0x18(%rsp)
0x00000000029925b1: mov %r13,0x10(%rsp)
0x00000000029925b6: mov %r14,0x8(%rsp)
0x00000000029925bb: mov %r15,(%rsp)
0x00000000029925bf: movabs $0x515db148,%rcx ; {external_word}
0x00000000029925c9: movabs $0x2992569,%rdx ; {internal_word}
0x00000000029925d3: mov %rsp,%r8
0x00000000029925d6: and $0xfffffffffffffff0,%rsp
0x00000000029925da: callq 0x00000000512a9020 ; {runtime_call}
0x00000000029925df: hlt
[Deopt Handler Code]
0x00000000029925e0: movabs $0x29925e0,%r10 ; {section_word}
0x00000000029925ea: push %r10
0x00000000029925ec: jmpq 0x00000000028c7340 ; {runtime_call}
0x00000000029925f1: hlt
0x00000000029925f2: hlt
0x00000000029925f3: hlt
0x00000000029925f4: hlt
0x00000000029925f5: hlt
0x00000000029925f6: hlt
0x00000000029925f7: hlt
One can see that the treatment of special cases involves some effort - compared to the output that uses simple comparisons, which is rather straightforward:
Decoding compiled method 0x0000000002998790:
Code:
[Entry Point]
[Verified Entry Point]
[Constants]
# {method} {0x000000001c0109c0} 'minB' '(DDD)D' in 'MinPerformance'
# parm0: xmm0:xmm0 = double
# parm1: xmm1:xmm1 = double
# parm2: xmm2:xmm2 = double
# [sp+0x20] (sp of caller)
0x00000000029988c0: sub $0x18,%rsp
0x00000000029988c7: mov %rbp,0x10(%rsp) ;*synchronization entry
; - MinPerformance::minB@-1 (line 63)
0x00000000029988cc: vucomisd %xmm0,%xmm1
0x00000000029988d0: ja 0x00000000029988ee ;*ifge
; - MinPerformance::minB@3 (line 63)
0x00000000029988d2: vucomisd %xmm1,%xmm2
0x00000000029988d6: ja 0x00000000029988de ;*ifge
; - MinPerformance::minB@22 (line 71)
0x00000000029988d8: vmovapd %xmm2,%xmm0
0x00000000029988dc: jmp 0x00000000029988e2
0x00000000029988de: vmovapd %xmm1,%xmm0 ;*synchronization entry
; - MinPerformance::minB@-1 (line 63)
0x00000000029988e2: add $0x10,%rsp
0x00000000029988e6: pop %rbp
0x00000000029988e7: test %eax,-0x27688ed(%rip) # 0x0000000000230000
; {poll_return}
0x00000000029988ed: retq
0x00000000029988ee: vucomisd %xmm0,%xmm2
0x00000000029988f2: ja 0x00000000029988e2 ;*ifge
; - MinPerformance::minB@10 (line 65)
0x00000000029988f4: vmovapd %xmm2,%xmm0
0x00000000029988f8: jmp 0x00000000029988e2
0x00000000029988fa: hlt
0x00000000029988fb: hlt
0x00000000029988fc: hlt
0x00000000029988fd: hlt
0x00000000029988fe: hlt
0x00000000029988ff: hlt
[Exception Handler]
[Stub Code]
0x0000000002998900: jmpq 0x00000000028ec920 ; {no_reloc}
[Deopt Handler Code]
0x0000000002998905: callq 0x000000000299890a
0x000000000299890a: subq $0x5,(%rsp)
0x000000000299890f: jmpq 0x00000000028c7340 ; {runtime_call}
0x0000000002998914: hlt
0x0000000002998915: hlt
0x0000000002998916: hlt
0x0000000002998917: hlt
Whether or not there are cases where such an optimization really makes a difference in an application is hard to tell. But at least, the bottom line is:
Math#min(double,double)
method is not the same as a simple comparison, and the treatment of the special cases does not come for freeMath#min
is not necessary, and then a comparison-based approach may be more efficientmin(double,double,double)
anyhow, for better convenience and readability, and then it would be easy to do two runs with the different implementations, and see whether it really affects the performance.(Side note: The integer type methods, like Math.min(int,int)
actually are a simple comparison - so I would expect no difference for these).
Remember that with the binding redirection
oldVersion="0.0.0.0-6.0.0.0"
You are saying that the old versions of the dll are between version 0.0.0.0 and version 6.0.0.0.
Easiest way for me is to Insert Markup.
Then in text box type the text between curly braces.
It will insert the formatted text in a new line but you can copy it anywhere, even inline.
I've completed the code that @Berezh has shared.
public class TreeNode<T> : IEnumerable<TreeNode<T>>
{
public T Data { get; set; }
public TreeNode<T> Parent { get; set; }
public ICollection<TreeNode<T>> Children { get; set; }
public TreeNode(T data)
{
this.Data = data;
this.Children = new LinkedList<TreeNode<T>>();
}
public TreeNode<T> AddChild(T child)
{
TreeNode<T> childNode = new TreeNode<T>(child) { Parent = this };
this.Children.Add(childNode);
return childNode;
}
public IEnumerator<TreeNode<T>> GetEnumerator()
{
throw new NotImplementedException();
}
IEnumerator IEnumerable.GetEnumerator()
{
return (IEnumerator)GetEnumerator();
}
}
public class TreeNodeEnum<T> : IEnumerator<TreeNode<T>>
{
int position = -1;
public List<TreeNode<T>> Nodes { get; set; }
public TreeNode<T> Current
{
get
{
try
{
return Nodes[position];
}
catch (IndexOutOfRangeException)
{
throw new InvalidOperationException();
}
}
}
object IEnumerator.Current
{
get
{
return Current;
}
}
public TreeNodeEnum(List<TreeNode<T>> nodes)
{
Nodes = nodes;
}
public void Dispose()
{
}
public bool MoveNext()
{
position++;
return (position < Nodes.Count);
}
public void Reset()
{
position = -1;
}
}
use this code
while ($rows = mysql_fetch_array($query)):
$name = $rows['Name'];
$address = $rows['Address'];
$email = $rows['Email'];
$subject = $rows['Subject'];
$comment = $rows['Comment'];
echo "$name<br>$address<br>$email<br>$subject<br>$comment<br><br>";
endwhile;
?>
The accepted answer is shortsighted and the question a bit loose in that:
1) Neither explicitly mention whether a covering index is present in the left, right, or both sides.
2) Neither takes into account the size of input left side set and input right side set.
(The question just mentions an overall large result set).
I believe the optimizer is smart enough to convert between "in" vs "exists" when there is a significant cost difference due to (1) and (2), otherwise it may just be used as a hint (e.g. exists to encourage use of an a seekable index on the right side).
Both forms can be converted to join forms internally, have the join order reversed, and run as loop, hash or merge--based on the estimated row counts (left and right) and index existence in left, right, or both sides.
Came here to see how to append an item to a 2D array, but the title of the thread is a bit misleading because it is exploring an issue with the appending.
The easiest way I found to append to a 2D list is like this:
list=[[]]
list.append((var_1,var_2))
This will result in an entry with the 2 variables var_1, var_2. Hope this helps!
The above solutions must work. However you can try this one:
OnClientClick="return SomeMethod();return false;"
and remove return statement from the method.
Firefox 30 ignores autocomplete="off"
for passwords, opting to prompt the user instead whether the password should be stored on the client. Note the following commentary from May 5, 2014:
- The password manager always prompts if it wants to save a password. Passwords are not saved without permission from the user.
- We are the third browser to implement this change, after IE and Chrome.
According to the Mozilla Developer Network documentation, the Boolean form element attribute autocomplete
prevents form data from being cached in older browsers.
<input type="text" name="foo" autocomplete="off" />
Addressing the question as updated.
#...part of script without redirection...
{
#...part of script with redirection...
} > file1 2>file2 # ...and others as appropriate...
#...residue of script without redirection...
The braces '{ ... }' provide a unit of I/O redirection. The braces must appear where a command could appear - simplistically, at the start of a line or after a semi-colon. (Yes, that can be made more precise; if you want to quibble, let me know.)
You are right that you can preserve the original stdout and stderr with the redirections you showed, but it is usually simpler for the people who have to maintain the script later to understand what's going on if you scope the redirected code as shown above.
The relevant sections of the Bash manual are Grouping Commands and I/O Redirection. The relevant sections of the POSIX shell specification are Compound Commands and I/O Redirection. Bash has some extra notations, but is otherwise similar to the POSIX shell specification.
You don't need to use **arr, you can either use:
void do_something(int el, std::vector<int> *arr){
arr->push_back(el);
}
or:
void do_something(int el, std::vector<int> &arr){
arr.push_back(el);
}
**arr makes no sense but if you insist using it, do it this way:
void do_something(int el, std::vector<int> **arr){
(*arr)->push_back(el);
}
but again there is no reason to do so...
Let's first see how to detect and save the value of a single cell of interest. Suppose Worksheets(1).Range("B1")
is your cell of interest. In a normal module, use this:
Option Explicit
Public StorageArray(0 to 1) As Variant
' Declare a module-level variable, which will not lose its scope as
' long as the codes are running, thus performing as a storage place.
' This is a one-dimensional array.
' The first element stores the "old value", and
' the second element stores the "new value"
Sub SaveToStorageArray()
' ACTION
StorageArray(0) = StorageArray(1)
' Transfer the previous new value to the "old value"
StorageArray(1) = Worksheets(1).Range("B1").value
' Store the latest new value in Range("B1") to the "new value"
' OUTPUT DEMONSTRATION (Optional)
' Results are presented in the Immediate Window.
Debug.Print "Old value:" & vbTab & StorageArray(0)
Debug.Print "New value:" & vbTab & StorageArray(1) & vbCrLf
End Sub
Then in the module of Worksheets(1):
Option Explicit
Private HasBeenActivatedBefore as Boolean
' Boolean variables have the default value of False.
' This is a module-level variable, which will not lose its scope as
' long as the codes are running.
Private Sub Worksheet_Activate()
If HasBeenActivatedBefore = False then
' If the Worksheet has not been activated before, initialize the
' StorageArray as follows.
StorageArray(1) = Me.Range("B1")
' When the Worksheets(1) is activated, store the current value
' of Range("B1") to the "new value", before the
' Worksheet_Change event occurs.
HasBeenActivatedBefore = True
' Set this parameter to True, so that the contents
' of this if block won't be evaluated again. Therefore,
' the initialization process above will only be executed
' once.
End If
End Sub
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Me.Range("B1")) Is Nothing then
Call SaveToStorageArray
' Only perform the transfer of old and new values when
' the cell of interest is being changed.
End If
End Sub
This will capture the change of the Worksheets(1).Range("B1")
, whether the change is due to the user actively selecting that cell on the Worksheet and changing the value, or due to other VBA codes that change the value of Worksheets(1).Range("B1")
.
Since we have declared the variable StorageArray
as public, you can reference its latest value in other modules in the same VBA project.
To expand our scope to the detection and saving the values of multiple cells of interest, you need to:
StorageArray
as a two-dimensional array, with the number of rows equal to the number of cells you are monitoring.Sub SaveToStorageArray
procedure to a more general Sub SaveToStorageArray(TargetSingleCell as Range)
and change the
relevant codes.Private Sub Worksheet_Change
procedure to accommodate the monitoring of those multiple cells.Appendix: For more information on the lifetime of variables, please refer to: https://msdn.microsoft.com/en-us/library/office/gg278427.aspx
All of the answers here use the Class.forName("my.vandor.Driver");
line to load the driver.
As an (better) alternative you can use the DriverManager
helper class which provides you with a handful of methods to handle your JDBC driver/s.
You might want to
DriverManager.registerDriver(driverObject);
to register your driver to it's list of driversRegisters the given driver with the DriverManager. A newly-loaded driver class should call the method registerDriver to make itself known to the DriverManager. If the driver is currently registered, no action is taken
DriverManager.deregisterDriver(driverObject);
to remove it.Removes the specified driver from the DriverManager's list of registered drivers.
Example:
Driver driver = new oracle.jdbc.OracleDriver();
DriverManager.registerDriver(driver);
Connection conn = DriverManager.getConnection(url, user, password);
// ...
// and when you don't need anything else from the driver
DriverManager.deregisterDriver(driver);
or better yet, use a DataSource
You may try to inherit property from the base class:
var width = 2;_x000D_
var interval = setInterval(function () {_x000D_
var element = document.getElementById('box');_x000D_
width += 0.0625;_x000D_
element.style.width = width + 'em';_x000D_
if (width >= 7) clearInterval(interval);_x000D_
}, 50);
_x000D_
.box {_x000D_
/* Set property */_x000D_
width:4em;_x000D_
height:2em;_x000D_
background-color:#d42;_x000D_
position:relative;_x000D_
}_x000D_
.box:after {_x000D_
/* Inherit property */_x000D_
width:inherit;_x000D_
content:"";_x000D_
height:1em;_x000D_
background-color:#2b4;_x000D_
position:absolute;_x000D_
top:100%;_x000D_
}
_x000D_
<div id="box" class="box"></div>
_x000D_
You can not make reference to static variable from non-static method. To understand this , you need to understand the difference between static and non-static.
Static variables are class variables , they belong to class with their only one instance , created at the first only. Non-static variables are initialized every time you create an object of the class.
Now coming to your question, when you use new() operator we will create copy of every non-static filed for every object, but it is not the case for static fields. That's why it gives compile time error if you are referencing a static variable from non-static method.
Just revisiting this, I've made it a little bit tidier (though someone who is full bottle on Prototype/JavaScript could suggest improvements?).
var TextAreaResize = Class.create();
TextAreaResize.prototype = {
initialize: function(element, options) {
element = $(element);
this.element = element;
this.options = Object.extend(
{},
options || {});
Event.observe(this.element, 'keyup',
this.onKeyUp.bindAsEventListener(this));
this.onKeyUp();
},
onKeyUp: function() {
// We need this variable because "this" changes in the scope of the
// function below.
var cols = this.element.cols;
var linecount = 0;
$A(this.element.value.split("\n")).each(function(l) {
// We take long lines into account via the cols divide.
linecount += 1 + Math.floor(l.length / cols);
})
this.element.rows = linecount;
}
}
Just it call with:
new TextAreaResize('textarea_id_name_here');
If you are targeting more modern browsers, life can be very simple. try:
.elem{
height: 100vh;
}
if you need it at 50% of the page, replace 100 with 50.
The difference between
import java.util.*;
and
import java.util.*;
import java.util.List;
import java.util.Arrays;
becomes apparent when the code refers to some other List
or Arrays
(for example, in the same package, or also imported generally). In the first case, the compiler will assume that the Arrays
declared in the same package is the one to use, in the latter, since it is declared specifically, the more specific java.util.Arrays
will be used.
The only real way is to have a container around your image and use overflow:hidden
:
HTML
<div class="container"><img src="ckk.jpg" /></div>
CSS
.container {
width: 300px;
height: 200px;
display: block;
position: relative;
overflow: hidden;
}
.container img {
position: absolute;
top: 0;
left: 0;
width: 100%;
}
It's a pain in CSS to do what you want and center the image, there is a quick fix in jquery such as:
var conHeight = $(".container").height();
var imgHeight = $(".container img").height();
var gap = (imgHeight - conHeight) / 2;
$(".container img").css("margin-top", -gap);
Refer to http://api.jquery.com/on/
It says
In all browsers, the load, scroll, and error events (e.g., on an
<img>
element) do not bubble. In Internet Explorer 8 and lower, the paste and reset events do not bubble. Such events are not supported for use with delegation, but they can be used when the event handler is directly attached to the element generating the event.
If you want to do something when a new input box is added then you can simply write the code after appending it.
$('#add').click(function(){
$('body').append(x);
// Your code can be here
});
And if you want the same code execute when the first input box within the document is loaded then you can write a function and call it in both places i.e. $('#add').click
and document's ready event
You may use jQuery.grep()
:
var found_names = $.grep(names, function(v) {
return v.name === "Joe" && v.age < 30;
});
All the other response are very miss-leading for somebody coming from google and looking for "timestamp in go"! YYYYMMDDhhmmss is not a "timestamp".
To get the "timestamp" of a date in go (number of seconds from january 1970), the correct function is .Unix(), and it really return an integer
After changing app.php, make sure you run:
php artisan config:clear
This is needed to clear the cache of config settings. If you notice that your timestamps are still wrong after changing the timezone in your app.php file, then running the above command should refresh everything, and your new timezone should be effective.
If you use basicHttpBinding, configure the endpoint security to "None" and transport clientCredintialType to "None."
<bindings>
<basicHttpBinding>
<binding name="MyBasicHttpBinding">
<security mode="None">
<transport clientCredentialType="None" />
</security>
</binding>
</basicHttpBinding>
</bindings>
<services>
<service behaviorConfiguration="MyServiceBehavior" name="MyService">
<endpoint
binding="basicHttpBinding"
bindingConfiguration="MyBasicHttpBinding"
name="basicEndPoint"
contract="IMyService"
/>
</service>
Also, make sure the directory Authentication Methods in IIS to Enable Anonymous access
Try the below code snippet
<!doctype html>
<html>
<head>
<title>Audio</title>
</head>
<body>
<script>
function play() {
var audio = document.getElementById("audio");
audio.play();
}
</script>
<input type="button" value="PLAY" onclick="play()">
<audio id="audio" src="http://dev.interactive-creation-works.net/1/1.ogg"></audio>
</body>
</html>
You can also use .replaceWith()
, like this:
$("b").replaceWith(function() { return $(this).contents(); });
Or if you know it's just a string:
$("b").replaceWith(function() { return this.innerHTML; });
This can make a big difference if you're unwrapping a lot of elements since either approach above is significantly faster than the cost of .unwrap()
.
On some CPUs, there is a dedicated set of registers for the stack. When a call instruction is executed, one register is loaded with the program counter at the same time as a second register is loaded with the contents of the first, a third register is be loaded with the second, and a fourth with the third, etc. When a return instruction is executed, the program counter is latched with the contents of the first stack register and the same time as that register is latched from the second; that second register is loaded from a third, etc. Note that such hardware stacks tend to be rather small (many the smaller PIC series micros, for example, have a two-level stack).
While a hardware stack does have some advantages (push and pop don't add any time to a call/return, for example) having registers which can be loaded with two sources adds cost. If the stack gets very big, it will be cheaper to replace the push-pull registers with an addressable memory. Even if a small dedicated memory is used for this, it's cheaper to have 32 addressable registers and a 5-bit pointer register with increment/decrement logic, than it is to have 32 registers each with two inputs. If an application might need more stack than would easily fit on the CPU, it's possible to use a stack pointer along with logic to store/fetch stack data from main RAM.
This is a classic difficulty in LaTeX.
The problem is how to do layout with floats (figures and tables, an similar objects) and footnotes. In particular, it is hard to pick a place for a float with certainty that making room for the associated footnotes won't cause trouble. So the standard tabular
and figure
environments don't even try.
What can you do:
\footnotesize
for the size). You also have to manage the symbols or number yourself with \footnotemark
. Simple, but not very attractive, and the footnote does not appear at the bottom of the page.tabularx
, longtable
, threeparttable[x]
(kudos to Joseph) or ctable
which support this behavior.[h!]
(or [H]
with the float package) to control where the float will appear, and \footnotetext
on the same page to put the footnote where you want it. Again, use \footnotemark
to install the symbol. Fragile and requires hand-tooling every instance.footnotes
package provides the savenote
environment, which can be used to do this.\begin{figure} \begin{minipage}{\textwidth} ... \caption[Caption for LOF]% {Real caption\footnote{blah}} \end{minipage} \end{figure}
Additional reference: TeX FAQ item Footnotes in tables.
Use output buffering:
<?php
ob_start();
var_dump($someVar);
$result = ob_get_clean();
?>
Anything that matches something ending with a --- .*a$
So when you match the regex, negate the condition
or alternatively you can also do .*[^a]$
where [^a]
means anything which is not a
In VBA we can not use if jj = 5 or 6 then
we must use if jj = 5 or jj = 6 then
maybe this:
If inputWks.Range("d9") > 0 And (inputWks.Range("d11") = "Restricted_Expenditure" Or inputWks.Range("d11") = "Unrestricted_Expenditure") Then
this error basically comes when you use the object before using it.
var someString = "(/n{})+++(/n{})---(/n{})$$$";_x000D_
var toRemove = "(/n{})"; // should find & remove last occurrence _x000D_
_x000D_
function removeLast(s, r){_x000D_
s = s.split(r)_x000D_
return s.slice(0,-1).join(r) + s.pop()_x000D_
}_x000D_
_x000D_
console.log(_x000D_
removeLast(someString, toRemove)_x000D_
)
_x000D_
s = s.split(toRemove) // ["", "+++", "---", "$$$"]
s.slice(0,-1) // ["", "+++", "---"]
s.slice(0,-1).join(toRemove) // "})()+++})()---"
s.pop() // "$$$"
Syntax always gets me.... so...
Here is explicitly how to add a line to a batch file that will kill a remote service (on another machine) if you are an admin on both machines, run the .bat as an administrator, and the machines are on the same domain. The machine name follows the UNC format \myserver
sc \\ip.ip.ip.ip stop p4_1
In this case... p4_1 was both the Service Name and the Display Name, when you view the Properties for the service in Service Manager. You must use the Service Name.
For your Service Ops junkies... be sure to append your reason code and comment! i.e. '4' which equals 'Planned' and comment 'Stopping server for maintenance'
sc \\ip.ip.ip.ip stop p4_1 4 Stopping server for maintenance
You should define the struct out of the class like this:
#include <iostream>
using namespace std;
struct X
{
int v;
};
class E
{
public:
X var;
};
int main(){
E object;
object.var.v=10;
return 0;
}
You have to create your own log4j.properties
in the classpath folder.
Unless you are subtracting dates on same browser client and don't care about edge cases like day light saving time changes, you are probably better off using moment.js which offers powerful localized APIs. For example, this is what I have in my utils.js:
subtractDates: function(date1, date2) {
return moment.subtract(date1, date2).milliseconds();
},
millisecondsSince: function(dateSince) {
return moment().subtract(dateSince).milliseconds();
},
A similar question was asked about doing this on an ASP page (link) and the consensus over there was that it was not possible to do with recaptcha. It seems that multiple forms on a single page must share the captcha, unless you're willing to use a different captcha. If you are not locked into recaptcha a good library to take a look at is the Zend Frameworks Zend_Captcha component (link). It contains a few
For Eclipse in Macbook it is just 2 click process:
Bootstrap 4
This is what worked for me:
I created my own _custom_theme.scss
file with content similar to:
/* To simplify I'm only changing the primary color */
$theme-colors: ( "primary":#ffd800);
Added it to the top of the file bootstrap.scss
and recompiled (In my case I had it in a folder called !scss)
@import "../../../!scss/_custom_theme.scss";
@import "functions";
@import "variables";
@import "mixins";
Determine if property is existing (but is not a falsy value):
if (typeof query !== 'undefined' && query !== null){
doStuff();
}
Usually using
if (query){
doStuff();
}
is sufficient. Please note that:
if (!query){
doStuff();
}
doStuff() will execute even if query was an existing variable with falsy value (0, false, undefined or null)
Btw, there's a sexy coffeescript way of doing this:
if object?.property? then doStuff()
which compiles to:
if ((typeof object !== "undefined" && object !== null ? object.property : void 0) != null)
{
doStuff();
}
For everyone looking for the log of the binomial coefficient (Theano calls this binomln
), this answer has it:
from numpy import log
from scipy.special import betaln
def binomln(n, k):
"Log of scipy.special.binom calculated entirely in the log domain"
return -betaln(1 + n - k, 1 + k) - log(n + 1)
(And if your language/library lacks betaln
but has gammaln
, like Go, have no fear, since betaln(a, b)
is just gammaln(a) + gammaln(b) - gammaln(a + b)
, per MathWorld.)
In Visual Studio 2012 you have to use (I think in Visual Studio 2010, too)
if $(Configuration) == Debug xcopy
$(ConfigurationName)
was listed as a macro, but it wasn't assigned.
You need antMatcher
for multiple HttpSecurity
, see Spring Security Reference:
5.7 Multiple HttpSecurity
We can configure multiple HttpSecurity instances just as we can have multiple
<http>
blocks. The key is to extend theWebSecurityConfigurationAdapter
multiple times. For example, the following is an example of having a different configuration for URL’s that start with/api/
.@EnableWebSecurity public class MultiHttpSecurityConfig { @Autowired public void configureGlobal(AuthenticationManagerBuilder auth) { 1 auth .inMemoryAuthentication() .withUser("user").password("password").roles("USER").and() .withUser("admin").password("password").roles("USER", "ADMIN"); } @Configuration @Order(1) 2 public static class ApiWebSecurityConfigurationAdapter extends WebSecurityConfigurerAdapter { protected void configure(HttpSecurity http) throws Exception { http .antMatcher("/api/**") 3 .authorizeRequests() .anyRequest().hasRole("ADMIN") .and() .httpBasic(); } } @Configuration 4 public static class FormLoginWebSecurityConfigurerAdapter extends WebSecurityConfigurerAdapter { @Override protected void configure(HttpSecurity http) throws Exception { http .authorizeRequests() .anyRequest().authenticated() .and() .formLogin(); } } }
1 Configure Authentication as normal
2 Create an instance of
WebSecurityConfigurerAdapter
that contains@Order
to specify whichWebSecurityConfigurerAdapter
should be considered first.3 The
http.antMatcher
states that thisHttpSecurity
will only be applicable to URLs that start with/api/
4 Create another instance of
WebSecurityConfigurerAdapter
. If the URL does not start with/api/
this configuration will be used. This configuration is considered afterApiWebSecurityConfigurationAdapter
since it has an@Order
value after1
(no@Order
defaults to last).
In your case you need no antMatcher
, because you have only one configuration. Your modified code:
http
.authorizeRequests()
.antMatchers("/high_level_url_A/sub_level_1").hasRole('USER')
.antMatchers("/high_level_url_A/sub_level_2").hasRole('USER2')
.somethingElse() // for /high_level_url_A/**
.antMatchers("/high_level_url_A/**").authenticated()
.antMatchers("/high_level_url_B/sub_level_1").permitAll()
.antMatchers("/high_level_url_B/sub_level_2").hasRole('USER3')
.somethingElse() // for /high_level_url_B/**
.antMatchers("/high_level_url_B/**").authenticated()
.anyRequest().permitAll()
I'm developing cordova apps for 2 years and I spent weeks to solve related problems (eg: webview scrolls when keyboard open). Here's a tested and proven solution for both ios and android
P.S.: I'm using iScroll for scrolling content
Add below to config.xml (first ff after x is opacity)
<preference name="BackgroundColor" value="0xff088c90" />
Handle your scroll position yourself by adding focus events to input elements
iscrollObj.scrollToElement(elm, transitionduration ... etc)
For android, do the same but instead of cordova-plugin-webviewcolor, install cordova-plugin-statusbar and cordova-plugin-navigationbar-color
Here's a javascript code using those plugins to work on both ios and android:
function setStatusColor(colorCode) {
//colorCode is smtg like '#427309';
if (cordova.platformId == 'android') {
StatusBar.backgroundColorByHexString(colorCode);
NavigationBar.backgroundColorByHexString(colorCode);
} else if (cordova.platformId == 'ios') {
window.plugins.webviewcolor.change(colorCode);
}
}
Just declare the enum outside the bounds of the class. Like this:
public enum card_suits
{
Clubs,
Hearts,
Spades,
Diamonds
}
public class Card
{
...
}
Remember that an enum is a type. You might also consider putting the enum in its own file if it's going to be used by other classes. (You're programming a card game and the suit is a very important attribute of the card that, in well-structured code, will need to be accessible by a number of classes.)
There is no need to do the reader loop yourself. The JsonTokener has this built in. E.g.
ttpResponse response; // some response object
BufferedReader reader = new BufferedReader(new
JSONTokener tokener = new JSONTokener(reader);
JSONArray finalResult = new JSONArray(tokener);
Quoted from monsur,
The Access-Control-Allow-Headers header does not allow wildcards. It must be an exact match: http://www.w3.org/TR/cors/#access-control-allow-headers-response-header.
So here is my php solution.
if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {
$headers=getallheaders();
@$ACRH=$headers["Access-Control-Request-Headers"];
header("Access-Control-Allow-Headers: $ACRH");
}
Just like @Dampes8N said:
$result = mysql_query($sql,$conecction);
$fp = fopen('file.csv', 'w');
while($row = mysql_fetch_assoc($result)){
fputcsv($fp, $row);
}
fclose($fp);
Hope this helps.
Actually, the responses bring up an interesting question, which is what you want your function to do in the case of error.
Maybe it would make more sense to construct it in the form of a TryParse method that attempts to read into T, but returns false if it can't be done?
private static bool ReadData<T>(XmlReader reader, string value, out T data)
{
bool result = false;
try
{
reader.MoveToAttribute(value);
object readData = reader.ReadContentAsObject();
data = readData as T;
if (data == null)
{
// see if we can convert to the requested type
data = (T)Convert.ChangeType(readData, typeof(T));
}
result = (data != null);
}
catch (InvalidCastException) { }
catch (Exception ex)
{
// add in any other exception handling here, invalid xml or whatnot
}
// make sure data is set to a default value
data = (result) ? data : default(T);
return result;
}
edit: now that I think about it, do I really need to do the convert.changetype test? doesn't the as line already try to do that? I'm not sure that doing that additional changetype call actually accomplishes anything. Actually, it might just increase the processing overhead by generating exception. If anyone knows of a difference that makes it worth doing, please post!
If you want the transition work for whole application you can create a rootacivity
and inherit it in the activity you need. In Root Activity's onCreate call overridePendingTransition
with desired direction. And onStart
call overridePendingTransition
with other direction if activity is resumed. Here I am giving full running code below.Correct me if I am wrong.
create this xml file on your anim folder
anim_slide_in_left.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<translate
android:duration="600"
android:fromXDelta="100%"
android:toXDelta="0%" >
</translate>
</set>
anim_slide_in_right.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<translate
android:duration="600"
android:fromXDelta="-100%"
android:toXDelta="0%" >
</translate>
</set>
anim_slide_out_left.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<translate
android:duration="600"
android:fromXDelta="0%"
android:toXDelta="-100%" >
</translate>
</set>
anim_slide_out_right.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<translate
android:duration="600"
android:fromXDelta="0%"
android:toXDelta="100%" >
</translate>
</set>
RootActivity
import android.app.Activity;
import android.os.Bundle;
public class RootActivity extends Activity {
int onStartCount = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
onStartCount = 1;
if (savedInstanceState == null) // 1st time
{
this.overridePendingTransition(R.anim.anim_slide_in_left,
R.anim.anim_slide_out_left);
} else // already created so reverse animation
{
onStartCount = 2;
}
}
@Override
protected void onStart() {
// TODO Auto-generated method stub
super.onStart();
if (onStartCount > 1) {
this.overridePendingTransition(R.anim.anim_slide_in_right,
R.anim.anim_slide_out_right);
} else if (onStartCount == 1) {
onStartCount++;
}
}
}
FirstActivity
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class FirstActivity extends RootActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TextView tv = (TextView) findViewById(R.id.tvTitle);
tv.setText("First Activity");
Button bt = (Button) findViewById(R.id.buttonNext);
bt.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(FirstActivity.this, SecondActivity.class);
startActivity(i);
}
});
}
}
SecondActivity
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class SecondActivity extends RootActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TextView tv = (TextView) findViewById(R.id.tvTitle);
tv.setText("Second Activity");
Button bt = (Button) findViewById(R.id.buttonNext);
bt.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(SecondActivity.this, ThirdActivity.class);
startActivity(i);
}
});
}
}
ThirdActivity
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class ThirdActivity extends RootActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TextView tv = (TextView) findViewById(R.id.tvTitle);
tv.setText("Third Activity");
Button bt = (Button) findViewById(R.id.buttonNext);
bt.setText("previous");
bt.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
}
}
and finally Manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.transitiontest"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.transitiontest.FirstActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.example.transitiontest.SecondActivity"
android:label="@string/app_name" >
</activity>
<activity
android:name="com.example.transitiontest.ThirdActivity"
android:label="@string/app_name" >
</activity>
</application>
</manifest>
Try This
import hashlib
user = input("Enter text here ")
h = hashlib.md5(user.encode())
h2 = h.hexdigest()
print(h2)
I find that the most convenient way to rename a single column is using dplyr::rename_at
:
library(dplyr)
cars %>% rename_at("speed",~"new") %>% head
cars %>% rename_at(vars(speed),~"new") %>% head
cars %>% rename_at(1,~"new") %>% head
# new dist
# 1 4 2
# 2 4 10
# 3 7 4
# 4 7 22
# 5 8 16
# 6 9 10
Move to the root of your App then execute the following command,
react-native -v
In my case, it is something like below,
MacBook-Pro:~ admin$ cd projects/
MacBook-Pro:projects admin$ cd ReactNative/
MacBook-Pro:ReactNative admin$ cd src/
MacBook-Pro:src admin$ cd Apps/
MacBook-Pro:Apps admin$ cd CabBookingApp/
MacBook-Pro:CabBookingApp admin$ ls
MyComponents __tests__ app.json index.android.js
ios package.json
MyStyles android img index.ios.js
node_modules
Finally,
MacBook-Pro:CabBookingApp admin$ react-native -v
react-native-cli: 2.0.1
react-native: 0.44.0
The snippet shows it all.
function add(x, y) {
if (x && y) {
return x + y;
} else {
/**
*
* the error thrown will be instanceof Error class and InvalidArgsError also
*/
throw new InvalidArgsError();
// throw new Invalid_Args_Error();
}
}
// Declare custom error using using Class
class Invalid_Args_Error extends Error {
constructor() {
super("Invalid arguments");
Error.captureStackTrace(this);
}
}
// Declare custom error using Function
function InvalidArgsError(message) {
this.message = `Invalid arguments`;
Error.captureStackTrace(this);
}
// does the same magic as extends keyword
Object.setPrototypeOf(InvalidArgsError.prototype, Error.prototype);
try{
add(2)
}catch(e){
// true
if(e instanceof Error){
console.log(e)
}
// true
if(e instanceof InvalidArgsError){
console.log(e)
}
}
Python Iterative approach by removing all prime factors from the number
def primef(n):
if n <= 3:
return n
if n % 2 == 0:
return primef(n/2)
elif n % 3 ==0:
return primef(n/3)
else:
for i in range(5, int((n)**0.5) + 1, 6):
#print i
if n % i == 0:
return primef(n/i)
if n % (i + 2) == 0:
return primef(n/(i+2))
return n
You can try an .htaccess method similar to the concept of how wordpress works.
Reference: http://monkeytooth.net/2010/12/htaccess-php-how-to-wordpress-slugs/
But I'm not sure if thats what your looking for exactly per say..
I've found the same problem. I lost almost a day trying to start a service from OnClickListener
method - outside the onCreate
and after 1 day, I still failed!!!! Very frustrating!
I was looking at the sample example RemoteServiceController
. Theirs works, but my implementation does not work!
The only way that was working for me, was from inside onCreate
method. None of the other variants worked and believe me I've tried them all.
Conclusion:
Also the one "/" couldn't find path to the service, tried starting with Intent(package,className)
and nothing , also other type of Intent starting
I moved the service class in the same package of the activity Final form that works
Hopefully this helps someone by defining the listerners onClick
inside the onCreate
method like this:
public void onCreate() {
//some code......
Button btnStartSrv = (Button)findViewById(R.id.btnStartService);
Button btnStopSrv = (Button)findViewById(R.id.btnStopService);
btnStartSrv.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
startService(new Intent("RM_SRV_AIDL"));
}
});
btnStopSrv.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
stopService(new Intent("RM_SRV_AIDL"));
}
});
} // end onCreate
Also very important for the Manifest file, be sure that service is child of application:
<application ... >
<activity ... >
...
</activity>
<service
android:name="com.mainActivity.MyRemoteGPSService"
android:label="GPSService"
android:process=":remote">
<intent-filter>
<action android:name="RM_SRV_AIDL" />
</intent-filter>
</service>
</application>
If you have your dates in DateTime variables, they don't have a format.
You can use the Date
property to return a DateTime value with the time portion set to midnight. So, if you have:
DateTime dt1 = DateTime.Parse("07/12/2011");
DateTime dt2 = DateTime.Now;
if(dt1.Date > dt2.Date)
{
//It's a later date
}
else
{
//It's an earlier or equal date
}
if you are using webview inside a fragment than use this in your onCreateView method
webView.setOnKeyListener(new View.OnKeyListener(){
@Override
public boolean onKey(View view, int i, KeyEvent keyEvent) {
if((i==KeyEvent.KEYCODE_BACK)&& webView.canGoBack()){
webView.goBack();
return true;
}
return false;
}
});
and import this class
import android.view.KeyEvent;
//Your Abstract class Animal
function Animal(type) {
this.say = type.say;
}
function catClass() {
this.say = function () {
console.log("I am a cat!")
}
}
function dogClass() {
this.say = function () {
console.log("I am a dog!")
}
}
var cat = new Animal(new catClass());
var dog = new Animal(new dogClass());
cat.say(); //I am a cat!
dog.say(); //I am a dog!
The following works for me.
string strToday = DateTime.Today.ToString("MM/dd/yyyy");
It's called a "finalizer", and you should usually only create one for a class whose state (i.e.: fields) include unmanaged resources (i.e.: pointers to handles retrieved via p/invoke calls). However, in .NET 2.0 and later, there's actually a better way to deal with clean-up of unmanaged resources: SafeHandle. Given this, you should pretty much never need to write a finalizer again.
Uninstall then run the setup program again but this time as Administrator. Make sure the VB bridge driver is selected during installation.
Here is a working version with your bugs removed.
$url = 'http://dynupdate.no-ip.com/ip.php';
$proxy = '127.0.0.1:8888';
//$proxyauth = 'user:password';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_PROXY, $proxy);
//curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxyauth);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 1);
$curl_scraped_page = curl_exec($ch);
curl_close($ch);
echo $curl_scraped_page;
I have added CURLOPT_PROXYUSERPWD
in case any of your proxies require a user name and password.
I set CURLOPT_RETURNTRANSFER
to 1, so that the data will be returned to $curl_scraped_page
variable.
I removed a second extra curl_exec($ch);
which would stop the variable being returned.
I consolidated your proxy IP and port into one setting.
I also removed CURLOPT_HTTPPROXYTUNNEL
and CURLOPT_CUSTOMREQUEST
as it was the default.
If you don't want the headers returned, comment out CURLOPT_HEADER
.
To disable the proxy simply set it to null.
curl_setopt($ch, CURLOPT_PROXY, null);
Any questions feel free to ask, I work with cURL
every day.
ORA-01031: insufficient privileges
happens when the object exists in the schema but do not have any access to that object.
ORA-00942: table or view does not exist
happens when the object does not exist in the current schema. If the object exists in another schema, you need to access it using .. Still you can get insufficient privileges error if the owner has not given access to the calling schema.
After you add the .gitignore
file and commit it, it will no longer show up in the "untracked files" list.
git add .gitignore
git commit -m "add .gitignore file"
git status
For file Type you can rely on FileExtentions and for writing it to disk you can use BinaryWriter. or a FileStream.
Example (Assuming you already have a stream):
FileStream fileStream = File.Create(fileFullPath, (int)stream.Length);
// Initialize the bytes array with the stream length and then fill it with data
byte[] bytesInStream = new byte[stream.Length];
stream.Read(bytesInStream, 0, bytesInStream.Length);
// Use write method to write to the file specified above
fileStream.Write(bytesInStream, 0, bytesInStream.Length);
//Close the filestream
fileStream.Close();
There a 3 ways to implement validation:
Validation rule example:
public class NumericValidationRule : ValidationRule
{
public Type ValidationType { get; set; }
public override ValidationResult Validate(object value, CultureInfo cultureInfo)
{
string strValue = Convert.ToString(value);
if (string.IsNullOrEmpty(strValue))
return new ValidationResult(false, $"Value cannot be coverted to string.");
bool canConvert = false;
switch (ValidationType.Name)
{
case "Boolean":
bool boolVal = false;
canConvert = bool.TryParse(strValue, out boolVal);
return canConvert ? new ValidationResult(true, null) : new ValidationResult(false, $"Input should be type of boolean");
case "Int32":
int intVal = 0;
canConvert = int.TryParse(strValue, out intVal);
return canConvert ? new ValidationResult(true, null) : new ValidationResult(false, $"Input should be type of Int32");
case "Double":
double doubleVal = 0;
canConvert = double.TryParse(strValue, out doubleVal);
return canConvert ? new ValidationResult(true, null) : new ValidationResult(false, $"Input should be type of Double");
case "Int64":
long longVal = 0;
canConvert = long.TryParse(strValue, out longVal);
return canConvert ? new ValidationResult(true, null) : new ValidationResult(false, $"Input should be type of Int64");
default:
throw new InvalidCastException($"{ValidationType.Name} is not supported");
}
}
}
XAML:
Very important: don't forget to set ValidatesOnTargetUpdated="True"
it won't work without this definition.
<TextBox x:Name="Int32Holder"
IsReadOnly="{Binding IsChecked,ElementName=CheckBoxEditModeController,Converter={converters:BooleanInvertConverter}}"
Style="{StaticResource ValidationAwareTextBoxStyle}"
VerticalAlignment="Center">
<!--Text="{Binding Converter={cnv:TypeConverter}, ConverterParameter='Int32', Path=ValueToEdit.Value, UpdateSourceTrigger=PropertyChanged, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}"-->
<TextBox.Text>
<Binding Path="Name"
Mode="TwoWay"
UpdateSourceTrigger="PropertyChanged"
Converter="{cnv:TypeConverter}"
ConverterParameter="Int32"
ValidatesOnNotifyDataErrors="True"
ValidatesOnDataErrors="True"
NotifyOnValidationError="True">
<Binding.ValidationRules>
<validationRules:NumericValidationRule ValidationType="{x:Type system:Int32}"
ValidatesOnTargetUpdated="True" />
</Binding.ValidationRules>
</Binding>
</TextBox.Text>
<!--NumericValidationRule-->
</TextBox>
INotifyDataErrorInfo example:
public abstract class ViewModelBase : INotifyPropertyChanged, INotifyDataErrorInfo
{
#region INotifyPropertyChanged
public event PropertyChangedEventHandler PropertyChanged;
public void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
ValidateAsync();
}
#endregion
public virtual void OnLoaded()
{
}
#region INotifyDataErrorInfo
private ConcurrentDictionary<string, List<string>> _errors = new ConcurrentDictionary<string, List<string>>();
public event EventHandler<DataErrorsChangedEventArgs> ErrorsChanged;
public void OnErrorsChanged(string propertyName)
{
var handler = ErrorsChanged;
if (handler != null)
handler(this, new DataErrorsChangedEventArgs(propertyName));
}
public IEnumerable GetErrors(string propertyName)
{
List<string> errorsForName;
_errors.TryGetValue(propertyName, out errorsForName);
return errorsForName;
}
public bool HasErrors
{
get { return _errors.Any(kv => kv.Value != null && kv.Value.Count > 0); }
}
public Task ValidateAsync()
{
return Task.Run(() => Validate());
}
private object _lock = new object();
public void Validate()
{
lock (_lock)
{
var validationContext = new ValidationContext(this, null, null);
var validationResults = new List<ValidationResult>();
Validator.TryValidateObject(this, validationContext, validationResults, true);
foreach (var kv in _errors.ToList())
{
if (validationResults.All(r => r.MemberNames.All(m => m != kv.Key)))
{
List<string> outLi;
_errors.TryRemove(kv.Key, out outLi);
OnErrorsChanged(kv.Key);
}
}
var q = from r in validationResults
from m in r.MemberNames
group r by m into g
select g;
foreach (var prop in q)
{
var messages = prop.Select(r => r.ErrorMessage).ToList();
if (_errors.ContainsKey(prop.Key))
{
List<string> outLi;
_errors.TryRemove(prop.Key, out outLi);
}
_errors.TryAdd(prop.Key, messages);
OnErrorsChanged(prop.Key);
}
}
}
#endregion
}
View Model Implementation:
public class MainFeedViewModel : BaseViewModel//, IDataErrorInfo
{
private ObservableCollection<FeedItemViewModel> _feedItems;
[XmlIgnore]
public ObservableCollection<FeedItemViewModel> FeedItems
{
get
{
return _feedItems;
}
set
{
_feedItems = value;
OnPropertyChanged("FeedItems");
}
}
[XmlIgnore]
public ObservableCollection<FeedItemViewModel> FilteredFeedItems
{
get
{
if (SearchText == null) return _feedItems;
return new ObservableCollection<FeedItemViewModel>(_feedItems.Where(x => x.Title.ToUpper().Contains(SearchText.ToUpper())));
}
}
private string _title;
[Required]
[StringLength(20)]
//[CustomNameValidationRegularExpression(5, 20)]
[CustomNameValidationAttribute(3, 20)]
public string Title
{
get { return _title; }
set
{
_title = value;
OnPropertyChanged("Title");
}
}
private string _url;
[Required]
[StringLength(200)]
[Url]
//[CustomValidation(typeof(MainFeedViewModel), "UrlValidation")]
/// <summary>
/// Validation of URL should be with custom method like the one that implemented below, or with
/// </summary>
public string Url
{
get { return _url; }
set
{
_url = value;
OnPropertyChanged("Url");
}
}
public MainFeedViewModel(string url, string title)
{
Title = title;
Url = url;
}
/// <summary>
///
/// </summary>
public MainFeedViewModel()
{
}
public MainFeedViewModel(ObservableCollection<FeedItemViewModel> feeds)
{
_feedItems = feeds;
}
private string _searchText;
[XmlIgnore]
public string SearchText
{
get { return _searchText; }
set
{
_searchText = value;
OnPropertyChanged("SearchText");
OnPropertyChanged("FilteredFeedItems");
}
}
#region Data validation local
/// <summary>
/// Custom URL validation method
/// </summary>
/// <param name="obj"></param>
/// <param name="context"></param>
/// <returns></returns>
public static ValidationResult UrlValidation(object obj, ValidationContext context)
{
var vm = (MainFeedViewModel)context.ObjectInstance;
if (!Uri.IsWellFormedUriString(vm.Url, UriKind.Absolute))
{
return new ValidationResult("URL should be in valid format", new List<string> { "Url" });
}
return ValidationResult.Success;
}
#endregion
}
XAML:
<UserControl x:Class="RssReaderTool.Views.AddNewFeedDialogView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
d:DesignHeight="300"
d:DesignWidth="300">
<FrameworkElement.Resources>
<Style TargetType="{x:Type TextBox}">
<Setter Property="Validation.ErrorTemplate">
<Setter.Value>
<ControlTemplate x:Name="TextErrorTemplate">
<DockPanel LastChildFill="True">
<AdornedElementPlaceholder>
<Border BorderBrush="Red"
BorderThickness="2" />
</AdornedElementPlaceholder>
<TextBlock FontSize="20"
Foreground="Red">*?*</TextBlock>
</DockPanel>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="Validation.HasError"
Value="True">
<Setter Property="ToolTip"
Value="{Binding RelativeSource=
{x:Static RelativeSource.Self},
Path=(Validation.Errors)[0].ErrorContent}"></Setter>
</Trigger>
</Style.Triggers>
</Style>
<!--<Style TargetType="{x:Type TextBox}">
<Style.Triggers>
<Trigger Property="Validation.HasError"
Value="true">
<Setter Property="ToolTip"
Value="{Binding RelativeSource={x:Static RelativeSource.Self},
Path=(Validation.Errors)[0].ErrorContent}" />
</Trigger>
</Style.Triggers>
</Style>-->
</FrameworkElement.Resources>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="5" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="5" />
<RowDefinition Height="Auto" />
<RowDefinition Height="5" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<TextBlock Text="Feed Name"
ToolTip="Display" />
<TextBox Text="{Binding MainFeedViewModel.Title,UpdateSourceTrigger=PropertyChanged,ValidatesOnNotifyDataErrors=True,ValidatesOnDataErrors=True}"
Grid.Column="2" />
<TextBlock Text="Feed Url"
Grid.Row="2" />
<TextBox Text="{Binding MainFeedViewModel.Url,UpdateSourceTrigger=PropertyChanged,ValidatesOnNotifyDataErrors=True,ValidatesOnDataErrors=True}"
Grid.Column="2"
Grid.Row="2" />
</Grid>
</UserControl>
IDataErrorInfo:
View Model:
public class OperationViewModel : ViewModelBase, IDataErrorInfo
{
private const int ConstCodeMinValue = 1;
private readonly IEventAggregator _eventAggregator;
private OperationInfoDefinition _operation;
private readonly IEntityFilterer _contextFilterer;
private OperationDescriptionViewModel _description;
public long Code
{
get { return _operation.Code; }
set
{
if (SetProperty(value, _operation.Code, o => _operation.Code = o))
{
UpdateDescription();
}
}
}
public string Description
{
get { return _operation.Description; }
set
{
if (SetProperty(value, _operation.Description, o => _operation.Description = o))
{
UpdateDescription();
}
}
}
public string FriendlyName
{
get { return _operation.FriendlyName; }
set
{
if (SetProperty(value, _operation.FriendlyName, o => _operation.FriendlyName = o))
{
UpdateDescription();
}
}
}
public int Timeout
{
get { return _operation.Timeout; }
set
{
if (SetProperty(value, _operation.Timeout, o => _operation.Timeout = o))
{
UpdateDescription();
}
}
}
public string Category
{
get { return _operation.Category; }
set
{
if (SetProperty(value, _operation.Category, o => _operation.Category = o))
{
UpdateDescription();
}
}
}
public bool IsManual
{
get { return _operation.IsManual; }
set
{
if (SetProperty(value, _operation.IsManual, o => _operation.IsManual = o))
{
UpdateDescription();
}
}
}
void UpdateDescription()
{
//some code
}
#region Validation
#region IDataErrorInfo
public ValidationResult Validate()
{
return ValidationService.Instance.ValidateNumber(Code, ConstCodeMinValue, long.MaxValue);
}
public string this[string columnName]
{
get
{
var validation = ValidationService.Instance.ValidateNumber(Code, ConstCodeMinValue, long.MaxValue);
return validation.IsValid ? null : validation.ErrorContent.ToString();
}
}
public string Error
{
get
{
var result = Validate();
return result.IsValid ? null : result.ErrorContent.ToString();
}
}
#endregion
#endregion
}
XAML:
<controls:NewDefinitionControl x:Class="DiagnosticsDashboard.EntityData.Operations.Views.NewOperationView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:views="clr-namespace:DiagnosticsDashboard.EntityData.Operations.Views"
xmlns:controls="clr-namespace:DiagnosticsDashboard.Core.Controls;assembly=DiagnosticsDashboard.Core"
xmlns:c="clr-namespace:DiagnosticsDashboard.Core.Validation;assembly=DiagnosticsDashboard.Core"
mc:Ignorable="d">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="40" />
<RowDefinition Height="40" />
<RowDefinition Height="40" />
<RowDefinition Height="40" />
<RowDefinition Height="40" />
<RowDefinition Height="40" />
<RowDefinition Height="*" />
<RowDefinition Height="*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Label Grid.Column="0"
Grid.Row="0"
Margin="5">Code:</Label>
<Label Grid.Column="0"
Grid.Row="1"
Margin="5">Description:</Label>
<Label Grid.Column="0"
Grid.Row="2"
Margin="5">Category:</Label>
<Label Grid.Column="0"
Grid.Row="3"
Margin="5">Friendly Name:</Label>
<Label Grid.Column="0"
Grid.Row="4"
Margin="5">Timeout:</Label>
<Label Grid.Column="0"
Grid.Row="5"
Margin="5">Is Manual:</Label>
<TextBox Grid.Column="1"
Text="{Binding Code,UpdateSourceTrigger=PropertyChanged,ValidatesOnDataErrors=True}"
Grid.Row="0"
Margin="5"/>
<TextBox Grid.Column="1"
Grid.Row="1"
Margin="5"
Text="{Binding Description}" />
<TextBox Grid.Column="1"
Grid.Row="2"
Margin="5"
Text="{Binding Category}" />
<TextBox Grid.Column="1"
Grid.Row="3"
Margin="5"
Text="{Binding FriendlyName}" />
<TextBox Grid.Column="1"
Grid.Row="4"
Margin="5"
Text="{Binding Timeout}" />
<CheckBox Grid.Column="1"
Grid.Row="5"
Margin="5"
IsChecked="{Binding IsManual}"
VerticalAlignment="Center" />
</Grid>
</controls:NewDefinitionControl>
First of all, your first code doesn't use a for loop per se, but a list comprehension.
Would be equivalent to
for j in range(0, width): for i in range(0, height): m[i][j]
Much the same way, it generally nests like for loops, right to left. But list comprehension syntax is more complex.
I'm not sure what this question is asking
Any iterable object that yields iterable objects that yield exactly two objects (what a mouthful - i.e [(1,2),'ab']
would be valid )
The order in which the object yields upon iteration. i
goes to the first yield, j
the second.
Yes, but not as pretty. I believe it is functionally equivalent to:
l = list() for i,j in object: l.append(function(i,j))
or even better use map:
map(function, object)
But of course function would have to get i
, j
itself.
Isn't this the same question as 3?
atoi can do that for you
Example:
char string[] = "1234";
int sum = atoi( string );
printf("Sum = %d\n", sum ); // Outputs: Sum = 1234
Check whether the hadoop.tmp.dir
property in the core-site.xml
is correctly set.
If you set it, navigate to this directory, and remove or empty this directory.
If you didn't set it, you navigate to its default folder /tmp/hadoop-${user.name}
, likewise remove or empty this directory.
Quick and dirty?
#!/bin/sh
if [ -f sometempfile ]
echo "Already running... will now terminate."
exit
else
touch sometempfile
fi
..do what you want here..
rm sometempfile
If you need to handle DOM events not already provided by React you have to add DOM listeners after the component is mounted:
Update: Between React 13, 14, and 15 changes were made to the API that affect my answer. Below is the latest way using React 15 and ES7. See answer history for older versions.
class MovieItem extends React.Component {
componentDidMount() {
// When the component is mounted, add your DOM listener to the "nv" elem.
// (The "nv" elem is assigned in the render function.)
this.nv.addEventListener("nv-enter", this.handleNvEnter);
}
componentWillUnmount() {
// Make sure to remove the DOM listener when the component is unmounted.
this.nv.removeEventListener("nv-enter", this.handleNvEnter);
}
// Use a class arrow function (ES7) for the handler. In ES6 you could bind()
// a handler in the constructor.
handleNvEnter = (event) => {
console.log("Nv Enter:", event);
}
render() {
// Here we render a single <div> and toggle the "aria-nv-el-current" attribute
// using the attribute spread operator. This way only a single <div>
// is ever mounted and we don't have to worry about adding/removing
// a DOM listener every time the current index changes. The attrs
// are "spread" onto the <div> in the render function: {...attrs}
const attrs = this.props.index === 0 ? {"aria-nv-el-current": true} : {};
// Finally, render the div using a "ref" callback which assigns the mounted
// elem to a class property "nv" used to add the DOM listener to.
return (
<div ref={elem => this.nv = elem} aria-nv-el {...attrs} className="menu_item nv-default">
...
</div>
);
}
}
This might be because of the transitive dependencies.
Try to add/ remove the scope from the JSTL library.
This worked for me!
[HttpPost] // it use when you write logic on button click event
public ActionResult DemoInsert(EmployeeModel emp)
{
Employee emptbl = new Employee(); // make object of table
emptbl.EmpName = emp.EmpName;
emptbl.EmpAddress = emp.EmpAddress; // add if any field you want insert
dbc.Employees.Add(emptbl); // pass the table object
dbc.SaveChanges();
return View();
}
var metaTag = document.getElementsByTagName('meta');
for (var i=0; i < metaTag.length; i++) {
if (metaTag[i].getAttribute("http-equiv")=='refresh')
metaTag[i].content = '666';
if (metaTag[i].getAttribute("name")=='Keywords')
metaTag[i].content = 'js, solver';
}
SWIFT 5
Check if the element exists
if array.contains(where: {$0.name == "foo"}) {
// it exists, do something
} else {
//item could not be found
}
Get the element
if let foo = array.first(where: {$0.name == "foo"}) {
// do something with foo
} else {
// item could not be found
}
Get the element and its offset
if let foo = array.enumerated().first(where: {$0.element.name == "foo"}) {
// do something with foo.offset and foo.element
} else {
// item could not be found
}
Get the offset
if let fooOffset = array.firstIndex(where: {$0.name == "foo"}) {
// do something with fooOffset
} else {
// item could not be found
}
Some tips:
Have fun :-)
you have to make you're function static like this
namespace Add_Function
{
class Program
{
public static void(string[] args)
{
int a;
int b;
int c;
Console.WriteLine("Enter value of 'a':");
a = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter value of 'b':");
b = Convert.ToInt32(Console.ReadLine());
//why can't I not use it this way?
c = Add(a, b);
Console.WriteLine("a + b = {0}", c);
}
public static int Add(int x, int y)
{
int result = x + y;
return result;
}
}
}
you can do Program.Add instead of Add you also can make a new instance of Program by going like this
Program programinstance = new Program();
For getting the current public IP address, all you need to do is create an ASPX page with the following line on the page load event:
Response.Write(HttpContext.Current.Request.UserHostAddress.ToString());
Use Window.location.href to take the url in javascript. it's a property that will tell you the current URL location of the browser. Setting the property to something different will redirect the page.
if (window.location.href.indexOf("?added-to-cart=555") > -1) {
alert("found it");
}
see http://msdn.microsoft.com/en-us/library/system.reflection.emit.opcodes.switch%28VS.71%29.aspx
switch statement basically a look up table it have options which are known and if statement is like boolean type. according to me switch and if-else are same but for logic switch can help more better. while if-else helps to understand in reading also.
also put (main/assets/htmls/name.gif) [with this html adjust to the size]
<html style="margin: 0;">
<body style="margin: 0;">
<img src="name.gif" style="width: 100%; height: 100%" />
</body>
</html>
declare in your Xml for example like this (main/res/layout/name.xml): [you define the size, for example]
<WebView
android:layout_width="70dp"
android:layout_height="70dp"
android:id="@+id/webView"
android:layout_gravity="center_horizontal" />
in your Activity put the next code inside of onCreate
web = (WebView) findViewById(R.id.webView);
web.setBackgroundColor(Color.TRANSPARENT); //for gif without background
web.loadUrl("file:///android_asset/htmls/name.html");
if you want load dynamically you have to load the webview with data:
// or "[path]/name.gif" (e.g: file:///android_asset/name.gif for resources in asset folder), and in loadDataWithBaseURL(), you don't need to set base URL, on the other hand, it's similar to loadData() method.
String gifName = "name.gif";
String yourData = "<html style=\"margin: 0;\">\n" +
" <body style=\"margin: 0;\">\n" +
" <img src=" + gifName + " style=\"width: 100%; height: 100%\" />\n" +
" </body>\n" +
" </html>";
// Important to add this attribute to webView to get resource from outside.
webView.getSettings().setAllowFileAccess(true);
// Notice: should use loadDataWithBaseURL. BaseUrl could be the base url such as the path to asset folder, or SDCard or any other path, where your images or the other media resides related to your html
webView.loadDataWithBaseURL("file:///android_asset/", yourData, "text/html", "utf-8", null);
// Or if you want to load image from SD card or where else, here is the idea.
String base = Environment.getExternalStorageDirectory().getAbsolutePath().toString();
webView.loadDataWithBaseURL(base + '/', yourData, "text/html", "utf-8", null);
suggestion: is better load gif with static images for more information check https://developer.android.com/reference/android/graphics/drawable/AnimationDrawable.html
That's it, I hope you help.
The angular way is shown in the angular docs :)
https://docs.angularjs.org/api/ng/directive/ngReadonly
Here is the example they use:
<body>
Check me to make text readonly: <input type="checkbox" ng-model="checked"><br/>
<input type="text" ng-readonly="checked" value="I'm Angular"/>
</body>
Basically the angular way is to create a model object that will hold whether or not the input should be readonly and then set that model object accordingly. The beauty of angular is that most of the time you don't need to do any dom manipulation. You just have angular render the view they way your model is set (let angular do the dom manipulation for you and keep your code clean).
So basically in your case you would want to do something like below or check out this working example.
<button ng-click="isInput1ReadOnly = !isInput1ReadOnly">Click Me</button>
<input type="text" ng-readonly="isInput1ReadOnly" value="Angular Rules!"/>
update 2019: for install the preview version of TensorFlow 2 in Google Colab you can use:
!wget https://developer.nvidia.com/compute/cuda/10.0/Prod/local_installers/cuda-repo-ubuntu1604-10-0-local-10.0.130-410.48_1.0-1_amd64 -O cuda-repo-ubuntu1604-10-0-local-10.0.130-410.48_1.0-1_amd64.deb
!dpkg -i cuda-repo-ubuntu1604-10-0-local-10.0.130-410.48_1.0-1_amd64.deb
!apt-key add /var/cuda-repo-10-0-local-10.0.130-410.48/7fa2af80.pub
!apt-get update
!apt-get install cuda
!pip install tf-nightly-gpu-2.0-preview
and for install the TensorFlow 2 bye pip you can use:
pip install tf-nightly-gpu-2.0-preview
for GPU and
pip install tf-nightly-2.0-preview
for CPU.
Ajax.BeginForm looks to be a fail.
Using a regular Html.Begin for, this does the trick just nicely:
$('#detailsform').submit(function(e) {
e.preventDefault();
$.post($(this).attr("action"), $(this).serialize(), function(r) {
$("#edit").html(r);
});
});
Simplest answer:
the return code from a function can be only a value in the range from 0 to 255 . To store this value in a variable you have to do like in this example:
#!/bin/bash
function returnfunction {
# example value between 0-255 to be returned
return 23
}
# note that the value has to be stored immediately after the function call :
returnfunction
myreturnvalue=$?
echo "myreturnvalue is "$myreturnvalue
Personally I dislike hanging open blocks, so I'd format it as:
logger.info(
'Skipping {0} because its thumbnail was already in our system as {1}.'
.format(line[indexes['url']], video.title)
)
In general I wouldn't bother struggle too hard to make code fit exactly within a 80-column line. It's worth keeping line length down to reasonable levels, but the hard 80 limit is a thing of the past.
If you are using a class from another project, the project needs to re-build and create re-the dll. Make sure "Build" is checked for that project on Build -> Configuration Manager in Visual Studio. So the reference project will re-build and update the dll.
There are a few ways to do it. If I want to read and write binary I usually use open()
, read()
, write()
, close()
. Which are completely different than doing a byte at a time. You work with integer file descriptors instead of FILE * variables. fileno will get an integer descriptor from a FILE * BTW. You read a buffer full of data, say 32k bytes at once. The buffer is really an array which you can read from really fast because it's in memory. And reading and writing many bytes at once is faster than one at a time. It's called a blockread in Pascal I think, but read() is the C equivalent.
I looked but I don't have any examples handy. OK, these aren't ideal because they also are doing stuff with JPEG images. Here's a read, you probably only care about the part from open() to close(). fbuf is the array to read into, sb.st_size is the file size in bytes from a stat() call.
fd = open(MASKFNAME,O_RDONLY);
if (fd != -1) {
read(fd,fbuf,sb.st_size);
close(fd);
splitmask(fbuf,(uint32_t)sb.st_size); // look at lines, etc
have_mask = 1;
}
Here's a write: (here pix is the byte array, jwidth and jheight are the JPEG width and height so for RGB color we write height * width * 3 color bytes). It's the # of bytes to write.
void simpdump(uint8_t *pix, char *nm) { // makes a raw aka .data file
int sdfd;
sdfd = open(nm,O_WRONLY | O_CREAT);
if (sdfd == -1) {
printf("bad open\n");
exit(-1);
}
printf("width: %i height: %i\n",jwidth,jheight); // to the console
write(sdfd,pix,(jwidth*jheight*3));
close(sdfd);
}
Look at man 2 open, also read, write, close. Also this old-style jpeg example.c: https://github.com/LuaDist/libjpeg/blob/master/example.c I'm reading and writing an entire image at once here. But they're binary reads and writes of bytes, just a lot at once.
"But when I try to read from a file it is not outputting correctly." Hmmm. If you read a number 65 that's (decimal) ASCII for an A. Maybe you should look at man ascii too. If you want a 1 that's ASCII 0x31. A char variable is a tiny 8-bit integer really, if you do a printf as a %i you get the ASCII value, if you do a %c you get the character. Do %x for hexadecimal. All from the same number between 0 and 255.
For me, this started to happen after merge conflict.
I tried to clean and remove build folder, but none of it helped. This issue kept happening regardless. Then I relinked the reference by deleting the groups that was problematic and re-added to the project and it worked.
If you are still getting an error that says "Default Activity not found" when you try to edit the run configurations even after executing:
Invalidate cache and Restart.
Then try deleting the Settings/Preferences folder:
/< USER_HOME_DIR >/.AndroidStudioPreview3.2
or on Mac :
/Users/<USER_NAME>/Library/Preferences/.AndroidStudioPreview3.2
I recommend you to use Attesoro (http://attesoro.org/). Is simple and easy to use. And is made in java.
Simplest way of Email Validation.
EditText TF;
public Button checkButton;
public final Pattern EMAIL_ADDRESS_PATTERN = Pattern.compile(
"[a-zA-Z0-9+._%-+]{1,256}" +
"@" +
"[a-zA-Z0-9][a-zA-Z0-9-]{0,64}" +
"(" +
"." +
"[a-zA-Z0-9][a-zA-Z0-9-]{0,25}" +
")+"
);
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
TF=(EditText) findViewById(R.id.TF);
checkButton=(Button) findViewById(R.id.checkButton);
checkButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
String email=TF.getText().toString();
if(checkEmail(email))
Toast.makeText(getApplicationContext(),"Valid Email Addresss", Toast.LENGTH_SHORT).show();
else
Toast.makeText(getApplicationContext(),"Invalid Email Addresss", Toast.LENGTH_SHORT).show();
}
});
}
private boolean checkEmail(String email) {
return EMAIL_ADDRESS_PATTERN.matcher(email).matches();
}}
Thanks @vpekar for your implementation. It helped a lot. I just found that it misses the tf-idf weight while calculating the cosine similarity. The Counter(word) returns a dictionary which has the list of words along with their occurence.
cos(q, d) = sim(q, d) = (q · d)/(|q||d|) = (sum(qi, di)/(sqrt(sum(qi2)))*(sqrt(sum(vi2))) where i = 1 to v)
Please feel free to view my code here. But first you will have to download the anaconda package. It will automatically set you python path in Windows. Add this python interpreter in Eclipse.
v%
will select the whole block.
Play with also:
v}
, vp
, vs
, etc.
See help:
:help text-objects
which lists the different ways to select letters, words, sentences, paragraphs, blocks, and so on.
<a href="javascript:;" onClick="if(confirm('Are you sure you want to delete this product')){del_product(id);}else{ }" class="btn btn-xs btn-danger btn-delete" title="Del Product">Delete Product</a>
<!-- language: lang-js -->
<script>
function del_product(id){
$('.process').css('display','block');
$('.process').html('<img src="./images/loading.gif">');
$.ajax({
'url':'./process.php?action=del_product&id='+id,
'type':"post",
success: function(result){
info=JSON.parse(result);
if(result.status==1){
setTimeout(function(){
$('.process').hide();
$('.tr_'+id).hide();
},3000);
setTimeout(function(){
$('.process').html(result.notice);
},1000);
} else if(result.status==0){
setTimeout(function(){
$('.process').hide();
},3000);
setTimeout(function(){
$('.process').html(result.notice);
},1000);
}
}
});
}
</script>
In addition from the command prompt run SET.
This displayed the "LOGONSERVER" value which indicates the specific domain controller you are using (there can be more than one).
Then you got to that server's NetBios Share \Servername\SYSVOL\domain.local\scripts.
Using Variable expansion/Substring replacement:
${var/%Pattern/Replacement}
If suffix of var matches Pattern, then substitute Replacement for Pattern.
So you can do:
~$ echo ${var/%????/}
some string
Alternatively,
If you have always the same 4 letters
~$ echo ${var/.rtf/}
some string
If it's always ending in .xyz
:
~$ echo ${var%.*}
some string
You can also use the length of the string:
~$ len=${#var}
~$ echo ${var::len-4}
some string
or simply echo ${var::-4}
This is related to the semantics of the code. By naming the value assigning it to a variable that has a meaningful name (even if it is used only at one place) you give it a meaning. When somebody is reading the code that person will know what that value means.
In general is not a good practice to use constant values across the code. Imagine a code full of string, integer, etc. values. After a time nobody will know what those constants are. Also a typo in a value can be a problem when the value is used on more than one place.
You can use pd.Timestamp to perform a query and a local reference
import pandas as pd
import numpy as np
df = pd.DataFrame()
ts = pd.Timestamp
df['date'] = np.array(np.arange(10) + datetime.now().timestamp(), dtype='M8[s]')
print(df)
print(df.query('date > @ts("20190515T071320")')
with the output
date
0 2019-05-15 07:13:16
1 2019-05-15 07:13:17
2 2019-05-15 07:13:18
3 2019-05-15 07:13:19
4 2019-05-15 07:13:20
5 2019-05-15 07:13:21
6 2019-05-15 07:13:22
7 2019-05-15 07:13:23
8 2019-05-15 07:13:24
9 2019-05-15 07:13:25
date
5 2019-05-15 07:13:21
6 2019-05-15 07:13:22
7 2019-05-15 07:13:23
8 2019-05-15 07:13:24
9 2019-05-15 07:13:25
Have a look at the pandas documentation for DataFrame.query, specifically the mention about the local variabile referenced udsing @
prefix. In this case we reference pd.Timestamp
using the local alias ts
to be able to supply a timestamp string
If you are a linux user Update node to a later version by running
sudo apt update
sudo apt install build-essential checkinstall libssl-dev
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.35.1/install.sh | bash
nvm --version
nvm ls
nvm ls-remote
nvm install [version.number]
this should solve your problem
You can also use callto:########### replacing the email code mail with call, at least according to W3Cschool site but I haven't had an opportunity to test it out.
Your third assertion is incorrect.
It's perfectly legal for two unequal objects to have the same hash code. It's used by HashMap
as a "first pass filter" so that the map can quickly find possible entries with the specified key. The keys with the same hash code are then tested for equality with the specified key.
You wouldn't want a requirement that two unequal objects couldn't have the same hash code, as otherwise that would limit you to 232 possible objects. (It would also mean that different types couldn't even use an object's fields to generate hash codes, as other classes could generate the same hash.)
function Map() {
this.keys = new Array();
this.data = new Object();
this.put = function (key, value) {
if (this.data[key] == null) {
this.keys.push(key);
}
this.data[key] = value;
};
this.get = function (key) {
return this.data[key];
};
this.remove = function (key) {
this.keys.remove(key);
this.data[key] = null;
};
this.each = function (fn) {
if (typeof fn != 'function') {
return;
}
var len = this.keys.length;
for (var i = 0; i < len; i++) {
var k = this.keys[i];
fn(k, this.data[k], i);
}
};
this.entrys = function () {
var len = this.keys.length;
var entrys = new Array(len);
for (var i = 0; i < len; i++) {
entrys[i] = {
key: this.keys[i],
value: this.data[i]
};
}
return entrys;
};
this.isEmpty = function () {
return this.keys.length == 0;
};
this.size = function () {
return this.keys.length;
};
}
I'm trying to get some efficiency out of early exit when using Any()...
public static bool IsPrime(long n)
{
if (n == 1) return false;
if (n == 3) return true;
//Even numbers are not primes
if (n % 2 == 0) return false;
return !Enumerable.Range(2, Convert.ToInt32(Math.Ceiling(Math.Sqrt(n))))
.Any(x => n % x == 0);
}
If you have Windows 10 you can use Bash on Ubuntu on Windows to install subversion.
This is what I did:
EF:
using (var context = new SomeDBContext())
{
foreach (var item in model.ShopItems) // ShopItems is a posted list with values
{
var feature = context.Shop
.Where(h => h.ShopID == 123 && h.Type == item.Type).ToList();
feature.ForEach(a => a.SortOrder = item.SortOrder);
}
context.SaveChanges();
}
Hope helps someone.
It is a syntax. In the function arguments int (&myArray)[100]
parenthesis that enclose the &myArray
are necessary. if you don't use them, you will be passing an array of references
and that is because the subscript operator []
has higher precedence over the & operator
.
E.g. int &myArray[100] // array of references
So, by using type construction ()
you tell the compiler that you want a reference to an array of 100 integers.
E.g int (&myArray)[100] // reference of an array of 100 ints
With the latest NodeJS you can experiment with this monkey patch:
const http = require("http");
const originalOnSocket = http.ClientRequest.prototype.onSocket;
require("http").ClientRequest.prototype.onSocket = function(socket) {
const that = this;
socket.setTimeout(this.timeout ? this.timeout : 3000);
socket.on('timeout', function() {
that.abort();
});
originalOnSocket.call(this, socket);
};
Need to convert the the key from hex to dec before base64_encoding and then send it for handshake.
$hashedKey = sha1($key. "258EAFA5-E914-47DA-95CA-C5AB0DC85B11",true);
$rawToken = "";
for ($i = 0; $i < 20; $i++) {
$rawToken .= chr(hexdec(substr($hashedKey,$i*2, 2)));
}
$handshakeToken = base64_encode($rawToken) . "\r\n";
$handshakeResponse = "HTTP/1.1 101 Switching Protocols\r\nUpgrade: websocket\r\nConnection: Upgrade\r\nSec-WebSocket-Accept: $handshakeToken\r\n";
I had the same issue with VS2017. Following solved the issue.
reg add HKLM\Software\WOW6432Node\Microsoft\InetStp /v MajorVersion /t REG_DWORD /d 10 /f
reg add HKLM\Software\Microsoft\InetStp /v MajorVersion /t REG_DWORD /d 10 /f
This should solve your problem. Refer to this link for more details.
There is a brand new version of Jsch up on github: https://github.com/vngx/vngx-jsch Some of the improvements include: comprehensive javadoc, enhanced performance, improved exception handling, and better RFC spec adherence. If you wish to contribute in any way please open an issue or send a pull request.
Assuming your dataframe is mydf:
mydf$task <- factor(mydf$task, levels = c("up", "down", "left", "right", "front", "back"))
Just use has_one
instead of belongs_to
in your :through
, like this:
class Choice
belongs_to :user
belongs_to :answer
has_one :question, :through => :answer
end
Unrelated, but I'd be hesitant to use validates_uniqueness_of instead of using a proper unique constraint in your database. When you do this in ruby you have race conditions.
This comes in late but was quite helpful. I am Just posting for future reference
DataTable dt = new DataTable();
Data.DataView dv = default(Data.DataView);
dv = (Data.DataView)ds.Select(DataSourceSelectArguments.Empty);
dt = dv.ToTable();
Create vector, push_back element, then modify it as so:
struct subject {
string name;
int marks;
int credits;
};
int main() {
vector<subject> sub;
//Push back new subject created with default constructor.
sub.push_back(subject());
//Vector now has 1 element @ index 0, so modify it.
sub[0].name = "english";
//Add a new element if you want another:
sub.push_back(subject());
//Modify its name and marks.
sub[1].name = "math";
sub[1].marks = 90;
}
You cant access a vector with [#] until an element exists in the vector at that index. This example populates the [#] and then modifies it afterward.
In your script, this part:
document.getElementById('Noite')
must be returning null
and you are also attempting to set the display
property to an invalid value. There are a couple of possible reasons for this first part to be null
.
You are running the script too early before the document has been loaded and thus the Noite
item can't be found.
There is no Noite
item in your HTML.
I should point out that your use of document.write()
in this case code probably signifies a problem. If the document has already loaded, then a new document.write()
will clear the old content and start a new fresh document so no Noite
item would be found.
If your document has not yet been loaded and thus you're doing document.write()
inline to add HTML inline to the current document, then your document has not yet been fully loaded so that's probably why it can't find the Noite
item.
The solution is probably to put this part of your script at the very end of your document so everything before it has already been loaded. So move this to the end of your body:
document.getElementById('Noite').style.display='block';
And, make sure that there are no document.write()
statements in javascript after the document has been loaded (because they will clear the previous document and start a new one).
In addition, setting the display
property to "display"
doesn't make sense to me. The valid options for that are "block"
, "inline"
, "none"
, "table"
, etc... I'm not aware of any option named "display"
for that style property. See here for valid options for teh display
property.
You can see the fixed code work here in this demo: http://jsfiddle.net/jfriend00/yVJY4/. That jsFiddle is configured to have the javascript placed at the end of the document body so it runs after the document has been loaded.
P.S. I should point out that your lack of braces for your if
statements and your inclusion of multiple statements on the same line makes your code very misleading and unclear.
I'm having a really hard time figuring out what you're asking, but here's a cleaned up version of your code that works which you can also see working here: http://jsfiddle.net/jfriend00/QCxwr/. Here's a list of the changes I made:
var
declarations to your variables (a good habit to always use).if
statement was changed into an if/else which is a lot more efficient and more self-documenting as to what you're doing.if
statement so it absolutely clear which statements are part of the if/else
and which are not.</dd>
tag you were inserting.style.display = '';
to style.display = 'block';
.The code:
<div id="Night" style="display: none;">
<img src="Img/night.png" style="position: fixed; top: 0px; left: 5%; height: auto; width: 100%; z-index: -2147483640;">
<img src="Img/moon.gif" style="position: fixed; top: 0px; left: 5%; height: 100%; width: auto; z-index: -2147483639;">
</div>
<script>
document.write("<dl><dd>");
var day = new Date();
var hr = day.getHours();
if (hr == 0) {
document.write("Meia-noite!<br>Já é amanhã!");
} else if (hr <=5 ) {
document.write(" Você não<br> devia<br> estar<br>dormindo?");
} else if (hr <= 11) {
document.write("Bom dia!");
} else if (hr == 12) {
document.write(" Vamos<br> almoçar?");
} else if (hr <= 17) {
document.write("Boa Tarde");
} else if (hr <= 19) {
document.write(" Bom final<br> de tarde!");
} else if (hr == 20) {
document.write(" Boa Noite");
document.getElementById('Noite').style.display='block';
} else if (hr == 21) {
document.write(" Boa Noite");
document.getElementById('Noite').style.display='none';
} else if (hr == 22) {
document.write(" Boa Noite");
} else if (hr == 23) {
document.write("Ó Meu! Já é quase meia-noite!");
}
document.write("</dl></dd>");
</script>
Think about using nosql tools like neo4j for hierarchial structures. e.g a networked application like linkedin uses couchbase (another nosql solution)
But use nosql only for data-mart level queries and not to store / maintain transactions
This has been partially answered here: MySQL Like multiple values
I advise against
$search = explode( ' ', $search );
and input them directly into the SQL query as this makes prone to SQL inject via the search bar. You will have to escape the characters first in case they try something funny like: "--; DROP TABLE name;
$search = str_replace('"', "''", search );
But even that is not completely safe. You must try to use SQL prepared statements to be safer. Using the regular expression is much easier to build a function to prepare and create what you want.
function makeSQL_search_pattern($search) {
search_pattern = false;
//escape the special regex chars
$search = str_replace('"', "''", $search);
$search = str_replace('^', "\\^", $search);
$search = str_replace('$', "\\$", $search);
$search = str_replace('.', "\\.", $search);
$search = str_replace('[', "\\[", $search);
$search = str_replace(']', "\\]", $search);
$search = str_replace('|', "\\|", $search);
$search = str_replace('*', "\\*", $search);
$search = str_replace('+', "\\+", $search);
$search = str_replace('{', "\\{", $search);
$search = str_replace('}', "\\}", $search);
$search = explode(" ", $search);
for ($i = 0; $i < count($search); $i++) {
if ($i > 0 && $i < count($search) ) {
$search_pattern .= "|";
}
$search_pattern .= $search[$i];
}
return search_pattern;
}
$search_pattern = makeSQL_search_pattern($search);
$sql_query = "SELECT name FROM Products WHERE name REGEXP :search LIMIT 6"
$stmt = pdo->prepare($sql_query);
$stmt->bindParam(":search", $search_pattern, PDO::PARAM_STR);
$stmt->execute();
I have not tested this code, but this is what I would do in your case. I hope this helps.
Update 2 (28 September 2020): This language is constantly evolving, and so if you can use Partial
(introduced in v2.1) then this is now my preferred way to achieve this.
class Box {
x: number;
y: number;
height: number;
width: number;
public constructor(b: Partial<Box> = {}) {
Object.assign(this, b);
}
}
// Example use
const a = new Box();
const b = new Box({x: 10, height: 99});
const c = new Box({foo: 10}); // Will fail to compile
Update (8 June 2017): guyarad and snolflake make valid points in their comments below to my answer. I would recommend readers look at the answers by Benson, Joe and snolflake who have better answers than mine.*
Original Answer (27 January 2014)
Another example of how to achieve constructor overloading:
class DateHour {
private date: Date;
private relativeHour: number;
constructor(year: number, month: number, day: number, relativeHour: number);
constructor(date: Date, relativeHour: number);
constructor(dateOrYear: any, monthOrRelativeHour: number, day?: number, relativeHour?: number) {
if (typeof dateOrYear === "number") {
this.date = new Date(dateOrYear, monthOrRelativeHour, day);
this.relativeHour = relativeHour;
} else {
var date = <Date> dateOrYear;
this.date = new Date(date.getFullYear(), date.getMonth(), date.getDate());
this.relativeHour = monthOrRelativeHour;
}
}
}
Source: http://mimosite.com/blog/post/2013/04/08/Overloading-in-TypeScript
The easiest way to differentiate O(1) and O(n) is comparing array and list.
For array, if you have the right index value, you can access the data instantly. (If you don't know the index and have to loop through the array, then it won't be O(1) anymore)
For list, you always need to loop through it whether you know the index or not.
On the Unity Editor open your project and:
If you already created your empty git repo on-line (eg. github.com) now it's time to upload your code. Open a command prompt and follow the next steps:
cd to/your/unity/project/folder
git init
git add *
git commit -m "First commit"
git remote add origin [email protected]:username/project.git
git push -u origin master
You should now open your Unity project while holding down the Option or the Left Alt key. This will force Unity to recreate the Library directory (this step might not be necessary since I've seen Unity recreating the Library directory even if you don't hold down any key).
Finally have git ignore the Library and Temp directories so that they won’t be pushed to the server. Add them to the .gitignore file and push the ignore to the server. Remember that you'll only commit the Assets and ProjectSettings directories.
And here's my own .gitignore recipe for my Unity projects:
# =============== #
# Unity generated #
# =============== #
Temp/
Obj/
UnityGenerated/
Library/
Assets/AssetStoreTools*
# ===================================== #
# Visual Studio / MonoDevelop generated #
# ===================================== #
ExportedObj/
*.svd
*.userprefs
*.csproj
*.pidb
*.suo
*.sln
*.user
*.unityproj
*.booproj
# ============ #
# OS generated #
# ============ #
.DS_Store
.DS_Store?
._*
.Spotlight-V100
.Trashes
Icon?
ehthumbs.db
Thumbs.db
Precision of a number is the number of digits.
Scale of a number is the number of digits after the decimal point.
What is generally implied when setting precision and scale on field definition is that they represent maximum values.
Example, a decimal field defined with precision=5
and scale=2
would allow the following values:
123.45
(p=5,s=2)12.34
(p=4,s=2)12345
(p=5,s=0)123.4
(p=4,s=1)0
(p=0,s=0)The following values are not allowed or would cause a data loss:
12.345
(p=5,s=3) => could be truncated into 12.35
(p=4,s=2)1234.56
(p=6,s=2) => could be truncated into 1234.6
(p=5,s=1)123.456
(p=6,s=3) => could be truncated into 123.46
(p=5,s=2)123450
(p=6,s=0) => out of rangeNote that the range is generally defined by the precision: |value| < 10^p
...
forEach() :
return value : undefined
originalArray : not modified after the method call
newArray is not created after the end of method call.
map() :
return value : new Array populated with the results of calling a provided function on every element in the calling array
originalArray : not modified after the method call
newArray is created after the end of method call.
Since map builds a new array, using it when you aren't using the
returned array is an anti-pattern; use forEach or for-of instead.
Here are my observation, firstly you need to include the header math.h
as sqrt()
function declared in math.h
header file. For e.g
#include <math.h>
secondly, if you read manual page of sqrt you will notice this line Link with -lm.
#include <math.h> /* header file you need to include */
double sqrt(double x); /* prototype of sqrt() function */
Link with -lm. /* Library linking instruction */
But application still says undefined reference to sqrt. Do you see any problem here?
Compiler error is correct as you haven't linked your program with library lm
& linker is unable to find reference of sqrt()
, you need to link it explicitly. For e.g
gcc -Wall -Wextra -Werror -pedantic test.c -lm
I'd had this issue for too long (SO etc hadn't helped) and only just solved it (using sdk 25).
-The local.properties file proguard.dir var was not applying with ant; I'd specified 5.3.2, but a command line call and signed export build (eclipse) was using 4.7, from the sdk dir(only 5+ supports java 8)
My solution was to replace the proguard jars (android-sdk/tools/proguard/libs directory) in the sdk with a current (5+) version of proguard.
SELECT *
FROM DBA_ROLE_PRIVS
WHERE UPPER(GRANTEE) LIKE '%XYZ%';
//this should allow you to replica an animation effect for any css property, even //properties //that transform animation jQuery plugins do not allow
function twistMyElem(){
var ball = $('#form');
document.getElementById('form').style.zIndex = 1;
ball.animate({ zIndex : 360},{
step: function(now,fx){
ball.css("transform","rotateY(" + now + "deg)");
},duration:3000
}, 'linear');
}
If you set up your project with the default gradle package structure, i.e.:
src/main/java
src/main/resources
src/test/java
src/test/resources
then you won't need to modify sourceSets to run your tests. Gradle will figure out that your test classes and resources are in src/test. You can then run as Oliver says above. One thing to note: Be careful when setting property files and running your test classes with both gradle and you IDE. I use Eclipse, and when running JUnit from it, Eclipse chooses one classpath (the bin directory) whereas gradle chooses another (the build directory). This can lead to confusion if you edit a resource file, and don't see your change reflected at test runtime.
Diogo
Justin has given you some very fine tips :)
You will also get that error if the cell where you are performing the calculation has an error resulting from a formula.
For example if Cell A1 has #DIV/0! error then you will get "Excel VBA Run-time error '13' Type mismatch" when performing this code
Sheets("Sheet1").Range("A1").Value - 1
I have made some slight changes to your code. Could you please test it for me? Copy the code with the line numbers as I have deliberately put them there.
Option Explicit
Sub Sample()
Dim ws As Worksheet
Dim x As Integer, i As Integer, a As Integer, y As Integer
Dim name As String
Dim lastRow As Long
10 On Error GoTo Whoa
20 Application.ScreenUpdating = False
30 name = InputBox("Please insert the name of the sheet")
40 If Len(Trim(name)) = 0 Then Exit Sub
50 Set ws = Sheets(name)
60 With ws
70 If Not IsError(.Range("BE4").Value) Then
80 x = Val(.Range("BE4").Value)
90 Else
100 MsgBox "Please check the value of cell BE4. It seems to have an error"
110 GoTo LetsContinue
120 End If
130 .Range("BF4").Value = x
140 lastRow = .Range("BE" & Rows.Count).End(xlUp).Row
150 For i = 5 To lastRow
160 If IsError(.Range("BE" & i)) Then
170 MsgBox "Please check the value of cell BE" & i & ". It seems to have an error"
180 GoTo LetsContinue
190 End If
200 a = 0: y = Val(.Range("BE" & i))
210 If y <> x Then
220 If y <> 0 Then
230 If y = 3 Then
240 a = x
250 .Range("BF" & i) = Val(.Range("BE" & i)) - x
260 x = Val(.Range("BE" & i)) - x
270 End If
280 .Range("BF" & i) = Val(.Range("BE" & i)) - a
290 x = Val(.Range("BE" & i)) - a
300 Else
310 .Range("BF" & i).ClearContents
320 End If
330 Else
340 .Range("BF" & i).ClearContents
350 End If
360 Next i
370 End With
LetsContinue:
380 Application.ScreenUpdating = True
390 Exit Sub
Whoa:
400 MsgBox "Error Description :" & Err.Description & vbNewLine & _
"Error at line : " & Erl
410 Resume LetsContinue
End Sub
Many thanks to David Walsh, here is a vanilla version of underscore debounce.
Code:
// Returns a function, that, as long as it continues to be invoked, will not
// be triggered. The function will be called after it stops being called for
// N milliseconds. If `immediate` is passed, trigger the function on the
// leading edge, instead of the trailing.
function debounce(func, wait, immediate) {
var timeout;
return function() {
var context = this, args = arguments;
var later = function() {
timeout = null;
if (!immediate) func.apply(context, args);
};
var callNow = immediate && !timeout;
clearTimeout(timeout);
timeout = setTimeout(later, wait);
if (callNow) func.apply(context, args);
};
};
Simple usage:
var myEfficientFn = debounce(function() {
// All the taxing stuff you do
}, 250);
$(window).on('resize', myEfficientFn);
#include <iostream>
#include <string>
using namespace std;
int main ()
{
string str("one three two four");
string str2("three");
str.replace(str.find(str2),str2.length(),"five");
cout << str << endl;
return 0;
}
one five two four
This is easier:
location.href = 'http://address.com';
Or
location.replace('http://address.com'); // <-- No history saved.
Wild stab in the dark: You're on a machine with an IPv6 resolver where localhost
defaults to the IPv6 address ::1
, but listen_addresses
in postgresql.conf
is set to 127.0.0.1
or 0.0.0.0
not *
or you're using an older PostgreSQL built with a C library that doesn't have transparent IPv6 support.
Change listen_addresses
to localhost
and make sure localhost
resolves to both the IPv4 and IPv6 addresses, or set it to ::1, 127.0.0.1
to explicitly specify both IPv4 and IPv6. Or just set it to *
to listen on all interfaces. Alternately, if you don't care about IPv6, connect to 127.0.0.1
instead of localhost
.
See this Google search or this Stack Overflow search for more information.
(Posting despite my close-vote because I voted the question for migration).
Don't need a regex
.
string[: string.find(' ')]
You can do this pretty easily with Javascript+Jquery as below. If you want to exclude some column, just write an if statement inside the for loops to skip those columns. Hope this helps!
//Sample JSON 2D array_x000D_
var json = [{_x000D_
"Total": "34",_x000D_
"Version": "1.0.4",_x000D_
"Office": "New York"_x000D_
}, {_x000D_
"Total": "67",_x000D_
"Version": "1.1.0",_x000D_
"Office": "Paris"_x000D_
}];_x000D_
_x000D_
// Get Table headers and print_x000D_
for (var k = 0; k < Object.keys(json[0]).length; k++) {_x000D_
$('#table_head').append('<td>' + Object.keys(json[0])[k] + '</td>');_x000D_
}_x000D_
_x000D_
// Get table body and print_x000D_
for (var i = 0; i < Object.keys(json).length; i++) {_x000D_
$('#table_content').append('<tr>');_x000D_
for (var j = 0; j < Object.keys(json[0]).length; j++) {_x000D_
$('#table_content').append('<td>' + json[i][Object.keys(json[0])[j]] + '</td>');_x000D_
}_x000D_
$('#table_content').append('</tr>');_x000D_
}
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<table>_x000D_
<thead>_x000D_
<tr id="table_head">_x000D_
_x000D_
</tr>_x000D_
</thead>_x000D_
<tbody id="table_content">_x000D_
_x000D_
</tbody>_x000D_
</table>
_x000D_
public class Test{
Test2 test = new Test2();
JFrame frame = new JFrame();
Test(){
...
frame.setLayout(new BorderLayout());
frame.add(test, BorderLayout.CENTER);
...
}
//main
...
}
//public class Test2{
public class Test2 extends JPanel {
//JPanel test2 = new JPanel();
Test2(){
...
}
Set default date in initialization:
$("#date").datepicker({
defaultDate: '01/26/2014'
});
I faced the same issue and It is really strange that the same code works in few case whereas it failed in some random cases.
I got it fixed by just making sure the proper setter/getter (Making sure the case sensitivity)
It is important to understand that accessors restrict access to variable, but not their content. In ruby, like in some other OO languages, every variable is a pointer to an instance. So if you have an attribute to an Hash, for example, and you set it to be "read only" you always could change its content, but not the content of pointer. Look at this:
irb(main):024:0> class A
irb(main):025:1> attr_reader :a
irb(main):026:1> def initialize
irb(main):027:2> @a = {a:1, b:2}
irb(main):028:2> end
irb(main):029:1> end
=> :initialize
irb(main):030:0> a = A.new
=> #<A:0x007ffc5a10fe88 @a={:a=>1, :b=>2}>
irb(main):031:0> a.a
=> {:a=>1, :b=>2}
irb(main):032:0> a.a.delete(:b)
=> 2
irb(main):033:0> a.a
=> {:a=>1}
irb(main):034:0> a.a = {}
NoMethodError: undefined method `a=' for #<A:0x007ffc5a10fe88 @a={:a=>1}>
from (irb):34
from /usr/local/bin/irb:11:in `<main>'
As you can see is possible delete a key/value pair from the Hash @a, as add new keys, change values, eccetera. But you can't point to a new object because is a read only instance variable.
Here is the working sample fiddle
Just remove additional \r\n and "|" from your reg ex.
Bootstrap 3 with DataTables Example: Bootstrap Docs & DataTables Docs
$(document).ready(function() {
$('#example').DataTable();
});
_x000D_
<link href=https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.4.1/css/bootstrap.min.css rel=stylesheet><link href=https://cdnjs.cloudflare.com/ajax/libs/datatables/1.10.20/css/dataTables.bootstrap.min.css rel=stylesheet><div class=container><h1>Bootstrap 3 DataTables</h1><table cellspacing=0 class="table table-bordered table-hover table-striped"id=example width=100%><thead><tr><th>Name<th>Position<th>Office<th>Salary<tbody><tr><td>Tiger Nixon<td>System Architect<td>Edinburgh<td>$320,800<tr><td>Garrett Winters<td>Accountant<td>Tokyo<td>$170,750<tr><td>Ashton Cox<td>Junior Technical Author<td>San Francisco<td>$86,000<tr><td>Cedric Kelly<td>Senior Javascript Developer<td>Edinburgh<td>$433,060<tr><td>Airi Satou<td>Accountant<td>Tokyo<td>$162,700<tr><td>Brielle Williamson<td>Integration Specialist<td>New York<td>$372,000<tr><td>Herrod Chandler<td>Sales Assistant<td>San Francisco<td>$137,500<tr><td>Rhona Davidson<td>Integration Specialist<td>Tokyo<td>$327,900<tr><td>Colleen Hurst<td>Javascript Developer<td>San Francisco<td>$205,500<tr><td>Sonya Frost<td>Software Engineer<td>Edinburgh<td>$103,600<tr><td>Jena Gaines<td>Office Manager<td>London<td>$90,560<tr><td>Quinn Flynn<td>Support Lead<td>Edinburgh<td>$342,000<tr><td>Charde Marshall<td>Regional Director<td>San Francisco<td>$470,600<tr><td>Haley Kennedy<td>Senior Marketing Designer<td>London<td>$313,500<tr><td>Tatyana Fitzpatrick<td>Regional Director<td>London<td>$385,750<tr><td>Michael Silva<td>Marketing Designer<td>London<td>$198,500<tr><td>Paul Byrd<td>Chief Financial Officer (CFO)<td>New York<td>$725,000<tr><td>Gloria Little<td>Systems Administrator<td>New York<td>$237,500<tr><td>Bradley Greer<td>Software Engineer<td>London<td>$132,000<tr><td>Dai Rios<td>Personnel Lead<td>Edinburgh<td>$217,500<tr><td>Jenette Caldwell<td>Development Lead<td>New York<td>$345,000<tr><td>Yuri Berry<td>Chief Marketing Officer (CMO)<td>New York<td>$675,000<tr><td>Caesar Vance<td>Pre-Sales Support<td>New York<td>$106,450<tr><td>Doris Wilder<td>Sales Assistant<td>Sidney<td>$85,600<tr><td>Angelica Ramos<td>Chief Executive Officer (CEO)<td>London<td>$1,200,000<tr><td>Gavin Joyce<td>Developer<td>Edinburgh<td>$92,575<tr><td>Jennifer Chang<td>Regional Director<td>Singapore<td>$357,650<tr><td>Brenden Wagner<td>Software Engineer<td>San Francisco<td>$206,850<tr><td>Fiona Green<td>Chief Operating Officer (COO)<td>San Francisco<td>$850,000<tr><td>Shou Itou<td>Regional Marketing<td>Tokyo<td>$163,000<tr><td>Michelle House<td>Integration Specialist<td>Sidney<td>$95,400<tr><td>Suki Burks<td>Developer<td>London<td>$114,500<tr><td>Prescott Bartlett<td>Technical Author<td>London<td>$145,000<tr><td>Gavin Cortez<td>Team Leader<td>San Francisco<td>$235,500<tr><td>Martena Mccray<td>Post-Sales support<td>Edinburgh<td>$324,050<tr><td>Unity Butler<td>Marketing Designer<td>San Francisco<td>$85,675<tr><td>Howard Hatfield<td>Office Manager<td>San Francisco<td>$164,500<tr><td>Hope Fuentes<td>Secretary<td>San Francisco<td>$109,850<tr><td>Vivian Harrell<td>Financial Controller<td>San Francisco<td>$452,500<tr><td>Timothy Mooney<td>Office Manager<td>London<td>$136,200<tr><td>Jackson Bradshaw<td>Director<td>New York<td>$645,750<tr><td>Olivia Liang<td>Support Engineer<td>Singapore<td>$234,500<tr><td>Bruno Nash<td>Software Engineer<td>London<td>$163,500<tr><td>Sakura Yamamoto<td>Support Engineer<td>Tokyo<td>$139,575<tr><td>Thor Walton<td>Developer<td>New York<td>$98,540<tr><td>Finn Camacho<td>Support Engineer<td>San Francisco<td>$87,500<tr><td>Serge Baldwin<td>Data Coordinator<td>Singapore<td>$138,575<tr><td>Zenaida Frank<td>Software Engineer<td>New York<td>$125,250<tr><td>Zorita Serrano<td>Software Engineer<td>San Francisco<td>$115,000<tr><td>Jennifer Acosta<td>Junior Javascript Developer<td>Edinburgh<td>$75,650<tr><td>Cara Stevens<td>Sales Assistant<td>New York<td>$145,600<tr><td>Hermione Butler<td>Regional Director<td>London<td>$356,250<tr><td>Lael Greer<td>Systems Administrator<td>London<td>$103,500<tr><td>Jonas Alexander<td>Developer<td>San Francisco<td>$86,500<tr><td>Shad Decker<td>Regional Director<td>Edinburgh<td>$183,000<tr><td>Michael Bruce<td>Javascript Developer<td>Singapore<td>$183,000<tr><td>Donna Snider<td>Customer Support<td>New York<td>$112,000</table></div><script src=https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js></script><script src=https://cdnjs.cloudflare.com/ajax/libs/datatables/1.10.20/js/jquery.dataTables.min.js></script><script src=https://cdnjs.cloudflare.com/ajax/libs/datatables/1.10.20/js/dataTables.bootstrap.min.js></script>
_x000D_
Bootstrap 4 with DataTables Example: Bootstrap Docs & DataTables Docs
$(document).ready(function() {
$('#example').DataTable();
});
_x000D_
<link href=https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.5.0/css/bootstrap.min.css rel=stylesheet><link href=https://cdnjs.cloudflare.com/ajax/libs/datatables/1.10.20/css/dataTables.bootstrap4.min.css rel=stylesheet><div class=container><h1>Bootstrap 4 DataTables</h1><table cellspacing=0 class="table table-bordered table-hover table-inverse table-striped"id=example width=100%><thead><tr><th>Name<th>Position<th>Office<th>Age<th>Start date<th>Salary<tfoot><tr><th>Name<th>Position<th>Office<th>Age<th>Start date<th>Salary<tbody><tr><td>Tiger Nixon<td>System Architect<td>Edinburgh<td>61<td>2011/04/25<td>$320,800<tr><td>Garrett Winters<td>Accountant<td>Tokyo<td>63<td>2011/07/25<td>$170,750<tr><td>Ashton Cox<td>Junior Technical Author<td>San Francisco<td>66<td>2009/01/12<td>$86,000<tr><td>Cedric Kelly<td>Senior Javascript Developer<td>Edinburgh<td>22<td>2012/03/29<td>$433,060<tr><td>Airi Satou<td>Accountant<td>Tokyo<td>33<td>2008/11/28<td>$162,700<tr><td>Brielle Williamson<td>Integration Specialist<td>New York<td>61<td>2012/12/02<td>$372,000<tr><td>Herrod Chandler<td>Sales Assistant<td>San Francisco<td>59<td>2012/08/06<td>$137,500<tr><td>Rhona Davidson<td>Integration Specialist<td>Tokyo<td>55<td>2010/10/14<td>$327,900<tr><td>Colleen Hurst<td>Javascript Developer<td>San Francisco<td>39<td>2009/09/15<td>$205,500<tr><td>Sonya Frost<td>Software Engineer<td>Edinburgh<td>23<td>2008/12/13<td>$103,600<tr><td>Jena Gaines<td>Office Manager<td>London<td>30<td>2008/12/19<td>$90,560<tr><td>Quinn Flynn<td>Support Lead<td>Edinburgh<td>22<td>2013/03/03<td>$342,000<tr><td>Charde Marshall<td>Regional Director<td>San Francisco<td>36<td>2008/10/16<td>$470,600<tr><td>Haley Kennedy<td>Senior Marketing Designer<td>London<td>43<td>2012/12/18<td>$313,500<tr><td>Tatyana Fitzpatrick<td>Regional Director<td>London<td>19<td>2010/03/17<td>$385,750<tr><td>Michael Silva<td>Marketing Designer<td>London<td>66<td>2012/11/27<td>$198,500<tr><td>Paul Byrd<td>Chief Financial Officer (CFO)<td>New York<td>64<td>2010/06/09<td>$725,000<tr><td>Gloria Little<td>Systems Administrator<td>New York<td>59<td>2009/04/10<td>$237,500<tr><td>Bradley Greer<td>Software Engineer<td>London<td>41<td>2012/10/13<td>$132,000<tr><td>Dai Rios<td>Personnel Lead<td>Edinburgh<td>35<td>2012/09/26<td>$217,500<tr><td>Jenette Caldwell<td>Development Lead<td>New York<td>30<td>2011/09/03<td>$345,000<tr><td>Yuri Berry<td>Chief Marketing Officer (CMO)<td>New York<td>40<td>2009/06/25<td>$675,000<tr><td>Caesar Vance<td>Pre-Sales Support<td>New York<td>21<td>2011/12/12<td>$106,450<tr><td>Doris Wilder<td>Sales Assistant<td>Sidney<td>23<td>2010/09/20<td>$85,600<tr><td>Angelica Ramos<td>Chief Executive Officer (CEO)<td>London<td>47<td>2009/10/09<td>$1,200,000<tr><td>Gavin Joyce<td>Developer<td>Edinburgh<td>42<td>2010/12/22<td>$92,575<tr><td>Jennifer Chang<td>Regional Director<td>Singapore<td>28<td>2010/11/14<td>$357,650<tr><td>Brenden Wagner<td>Software Engineer<td>San Francisco<td>28<td>2011/06/07<td>$206,850<tr><td>Fiona Green<td>Chief Operating Officer (COO)<td>San Francisco<td>48<td>2010/03/11<td>$850,000<tr><td>Shou Itou<td>Regional Marketing<td>Tokyo<td>20<td>2011/08/14<td>$163,000<tr><td>Michelle House<td>Integration Specialist<td>Sidney<td>37<td>2011/06/02<td>$95,400<tr><td>Suki Burks<td>Developer<td>London<td>53<td>2009/10/22<td>$114,500<tr><td>Prescott Bartlett<td>Technical Author<td>London<td>27<td>2011/05/07<td>$145,000<tr><td>Gavin Cortez<td>Team Leader<td>San Francisco<td>22<td>2008/10/26<td>$235,500<tr><td>Martena Mccray<td>Post-Sales support<td>Edinburgh<td>46<td>2011/03/09<td>$324,050<tr><td>Unity Butler<td>Marketing Designer<td>San Francisco<td>47<td>2009/12/09<td>$85,675<tr><td>Howard Hatfield<td>Office Manager<td>San Francisco<td>51<td>2008/12/16<td>$164,500<tr><td>Hope Fuentes<td>Secretary<td>San Francisco<td>41<td>2010/02/12<td>$109,850<tr><td>Vivian Harrell<td>Financial Controller<td>San Francisco<td>62<td>2009/02/14<td>$452,500<tr><td>Timothy Mooney<td>Office Manager<td>London<td>37<td>2008/12/11<td>$136,200<tr><td>Jackson Bradshaw<td>Director<td>New York<td>65<td>2008/09/26<td>$645,750<tr><td>Olivia Liang<td>Support Engineer<td>Singapore<td>64<td>2011/02/03<td>$234,500<tr><td>Bruno Nash<td>Software Engineer<td>London<td>38<td>2011/05/03<td>$163,500<tr><td>Sakura Yamamoto<td>Support Engineer<td>Tokyo<td>37<td>2009/08/19<td>$139,575<tr><td>Thor Walton<td>Developer<td>New York<td>61<td>2013/08/11<td>$98,540<tr><td>Finn Camacho<td>Support Engineer<td>San Francisco<td>47<td>2009/07/07<td>$87,500<tr><td>Serge Baldwin<td>Data Coordinator<td>Singapore<td>64<td>2012/04/09<td>$138,575<tr><td>Zenaida Frank<td>Software Engineer<td>New York<td>63<td>2010/01/04<td>$125,250<tr><td>Zorita Serrano<td>Software Engineer<td>San Francisco<td>56<td>2012/06/01<td>$115,000<tr><td>Jennifer Acosta<td>Junior Javascript Developer<td>Edinburgh<td>43<td>2013/02/01<td>$75,650<tr><td>Cara Stevens<td>Sales Assistant<td>New York<td>46<td>2011/12/06<td>$145,600<tr><td>Hermione Butler<td>Regional Director<td>London<td>47<td>2011/03/21<td>$356,250<tr><td>Lael Greer<td>Systems Administrator<td>London<td>21<td>2009/02/27<td>$103,500<tr><td>Jonas Alexander<td>Developer<td>San Francisco<td>30<td>2010/07/14<td>$86,500<tr><td>Shad Decker<td>Regional Director<td>Edinburgh<td>51<td>2008/11/13<td>$183,000<tr><td>Michael Bruce<td>Javascript Developer<td>Singapore<td>29<td>2011/06/27<td>$183,000<tr><td>Donna Snider<td>Customer Support<td>New York<td>27<td>2011/01/25<td>$112,000</table></div><script src=https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js></script><script src=https://cdnjs.cloudflare.com/ajax/libs/datatables/1.10.20/js/jquery.dataTables.min.js></script><script src=https://cdnjs.cloudflare.com/ajax/libs/datatables/1.10.20/js/dataTables.bootstrap4.min.js></script>
_x000D_
Bootstrap 3 with Bootstrap Table Example: Bootstrap Docs & Bootstrap Table Docs
<link href=https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.4.1/css/bootstrap.min.css rel=stylesheet><link href=https://cdnjs.cloudflare.com/ajax/libs/bootstrap-table/1.16.0/bootstrap-table.min.css rel=stylesheet><table data-sort-name=stargazers_count data-sort-order=desc data-toggle=table data-url="https://api.github.com/users/wenzhixin/repos?type=owner&sort=full_name&direction=asc&per_page=100&page=1"><thead><tr><th data-field=name data-sortable=true>Name<th data-field=stargazers_count data-sortable=true>Stars<th data-field=forks_count data-sortable=true>Forks<th data-field=description data-sortable=true>Description</thead></table><script src=https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js></script><script src=https://cdnjs.cloudflare.com/ajax/libs/bootstrap-table/1.16.0/bootstrap-table.min.js></script>
_x000D_
Bootstrap 3 with Bootstrap Sortable Example: Bootstrap Docs & Bootstrap Sortable Docs
function randomDate(t,e){return new Date(t.getTime()+Math.random()*(e.getTime()-t.getTime()))}function randomName(){return["Jack","Peter","Frank","Steven"][Math.floor(4*Math.random())]+" "+["White","Jackson","Sinatra","Spielberg"][Math.floor(4*Math.random())]}function newTableRow(){var t=moment(randomDate(new Date(2e3,0,1),new Date)).format("D.M.YYYY"),e=Math.round(Math.random()*Math.random()*100*100)/100,a=Math.round(Math.random()*Math.random()*100*100)/100,r=Math.round(Math.random()*Math.random()*100*100)/100;return"<tr><td>"+randomName()+"</td><td>"+e+"</td><td>"+a+"</td><td>"+r+"</td><td>"+Math.round(100*(e+a+r))/100+"</td><td data-dateformat='D-M-YYYY'>"+t+"</td></tr>"}function customSort(){alert("Custom sort.")}!function(t,e){"use strict";"function"==typeof define&&define.amd?define("tinysort",function(){return e}):t.tinysort=e}(this,function(){"use strict";function t(t,e){for(var a,r=t.length,o=r;o--;)e(t[a=r-o-1],a)}function e(t,e,a){for(var o in 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t.elm})},{plugin:a,defaults:m})}()),function(t,e){"function"==typeof define&&define.amd?define(["jquery","tinysort","moment"],e):e(t.jQuery,t.tinysort,t.moment||void 0)}(this,function(t,e,a){var r,o,n,s=t(document);function d(e){var s=void 0!==a;r=e.sign?e.sign:"arrow","default"==e.customSort&&(e.customSort=c),o=e.customSort||o||c,n=e.emptyEnd,t("table.sortable").each(function(){var r=t(this),o=!0===e.applyLast;r.find("span.sign").remove(),r.find("> thead [colspan]").each(function(){for(var e=parseFloat(t(this).attr("colspan")),a=1;a<e;a++)t(this).after('<th class="colspan-compensate">')}),r.find("> thead [rowspan]").each(function(){for(var e=t(this),a=parseFloat(e.attr("rowspan")),r=1;r<a;r++){var o=e.parent("tr"),n=o.next("tr"),s=o.children().index(e);n.children().eq(s).before('<th class="rowspan-compensate">')}}),r.find("> thead tr").each(function(e){t(this).find("th").each(function(a){var r=t(this);r.addClass("nosort").removeClass("up down"),r.attr("data-sortcolumn",a),r.attr("data-sortkey",a+"-"+e)})}),r.find("> thead .rowspan-compensate, .colspan-compensate").remove(),r.find("th").each(function(){var e=t(this);if(void 0!==e.attr("data-dateformat")&&s){var o=parseFloat(e.attr("data-sortcolumn"));r.find("td:nth-child("+(o+1)+")").each(function(){var r=t(this);r.attr("data-value",a(r.text(),e.attr("data-dateformat")).format("YYYY/MM/DD/HH/mm/ss"))})}else if(void 0!==e.attr("data-valueprovider")){o=parseFloat(e.attr("data-sortcolumn"));r.find("td:nth-child("+(o+1)+")").each(function(){var a=t(this);a.attr("data-value",new RegExp(e.attr("data-valueprovider")).exec(a.text())[0])})}}),r.find("td").each(function(){var e=t(this);void 0!==e.attr("data-dateformat")&&s?e.attr("data-value",a(e.text(),e.attr("data-dateformat")).format("YYYY/MM/DD/HH/mm/ss")):void 0!==e.attr("data-valueprovider")?e.attr("data-value",new RegExp(e.attr("data-valueprovider")).exec(e.text())[0]):void 0===e.attr("data-value")&&e.attr("data-value",e.text())});var n=l(r),d=n.bsSort;r.find('> thead th[data-defaultsort!="disabled"]').each(function(e){var a=t(this),r=a.closest("table.sortable");a.data("sortTable",r);var s=a.attr("data-sortkey"),i=o?n.lastSort:-1;d[s]=o?d[s]:a.attr("data-defaultsort"),void 0!==d[s]&&o===(s===i)&&(d[s]="asc"===d[s]?"desc":"asc",u(a,r))})})}function i(e){var a=t(e),r=a.data("sortTable")||a.closest("table.sortable");u(a,r)}function l(e){var a=e.data("bootstrap-sortable-context");return void 0===a&&(a={bsSort:[],lastSort:void 0},e.find('> thead th[data-defaultsort!="disabled"]').each(function(e){var r=t(this),o=r.attr("data-sortkey");a.bsSort[o]=r.attr("data-defaultsort"),void 0!==a.bsSort[o]&&(a.lastSort=o)}),e.data("bootstrap-sortable-context",a)),a}function c(t,a){e(t,a)}function u(e,a){a.trigger("before-sort");var s=parseFloat(e.attr("data-sortcolumn")),d=l(a),i=d.bsSort;if(e.attr("colspan")){var c=parseFloat(e.data("mainsort"))||0,f=parseFloat(e.data("sortkey").split("-").pop());if(a.find("> thead tr").length-1>f)return void u(a.find('[data-sortkey="'+(s+c)+"-"+(f+1)+'"]'),a);s+=c}var h=e.attr("data-defaultsign")||r;if(a.find("> thead th").each(function(){t(this).removeClass("up").removeClass("down").addClass("nosort")}),t.browser.mozilla){var p=a.find("> thead div.mozilla");void 0!==p&&(p.find(".sign").remove(),p.parent().html(p.html())),e.wrapInner('<div class="mozilla"></div>'),e.children().eq(0).append('<span class="sign '+h+'"></span>')}else a.find("> thead span.sign").remove(),e.append('<span class="sign '+h+'"></span>');var m=e.attr("data-sortkey"),v="desc"!==e.attr("data-firstsort")?"desc":"asc",b=i[m]||v;d.lastSort!==m&&void 0!==i[m]||(b="asc"===b?"desc":"asc"),i[m]=b,d.lastSort=m,"desc"===i[m]?(e.find("span.sign").addClass("up"),e.addClass("up").removeClass("down nosort")):e.addClass("down").removeClass("up nosort");var g=a.children("tbody").children("tr"),w=[];t(g.filter('[data-disablesort="true"]').get().reverse()).each(function(e,a){var r=t(a);w.push({index:g.index(r),row:r}),r.remove()});var S=g.not('[data-disablesort="true"]');if(0!=S.length){var y="asc"===i[m]&&n;o(S,{emptyEnd:y,selector:"td:nth-child("+(s+1)+")",order:i[m],data:"value"})}t(w.reverse()).each(function(t,e){0===e.index?a.children("tbody").prepend(e.row):a.children("tbody").children("tr").eq(e.index-1).after(e.row)}),a.find("> tbody > tr > td.sorted,> thead th.sorted").removeClass("sorted"),S.find("td:eq("+s+")").addClass("sorted"),e.addClass("sorted"),a.trigger("sorted")}if(t.bootstrapSortable=function(t){null==t?d({}):t.constructor===Boolean?d({applyLast:t}):void 0!==t.sortingHeader?i(t.sortingHeader):d(t)},s.on("click",'table.sortable>thead th[data-defaultsort!="disabled"]',function(t){i(this)}),!t.browser){t.browser={chrome:!1,mozilla:!1,opera:!1,msie:!1,safari:!1};var f=navigator.userAgent;t.each(t.browser,function(e){t.browser[e]=!!new RegExp(e,"i").test(f),t.browser.mozilla&&"mozilla"===e&&(t.browser.mozilla=!!new RegExp("firefox","i").test(f)),t.browser.chrome&&"safari"===e&&(t.browser.safari=!1)})}t(t.bootstrapSortable)}),function(){var t=$("table");t.append(newTableRow()),t.append(newTableRow()),$("button.add-row").on("click",function(){var e=$(this);t.append(newTableRow()),e.data("sort")?$.bootstrapSortable(!0):$.bootstrapSortable(!1)}),$("button.change-sort").on("click",function(){$(this).data("custom")?$.bootstrapSortable(!0,void 0,customSort):$.bootstrapSortable(!0,void 0,"default")}),t.on("sorted",function(){alert("Table was sorted.")}),$("#event").on("change",function(){$(this).is(":checked")?t.on("sorted",function(){alert("Table was sorted.")}):t.off("sorted")}),$("input[name=sign]:radio").change(function(){$.bootstrapSortable(!0,$(this).val())})}();
_x000D_
table.sortable span.sign { display: block; position: absolute; top: 50%; right: 5px; font-size: 12px; margin-top: -10px; color: #bfbfc1; } table.sortable th:after { display: block; position: absolute; top: 50%; right: 5px; font-size: 12px; margin-top: -10px; color: #bfbfc1; } table.sortable th.arrow:after { content: ''; } table.sortable span.arrow, span.reversed, th.arrow.down:after, th.reversedarrow.down:after, th.arrow.up:after, th.reversedarrow.up:after { border-style: solid; border-width: 5px; font-size: 0; border-color: #ccc transparent transparent transparent; line-height: 0; height: 0; width: 0; margin-top: -2px; } table.sortable span.arrow.up, th.arrow.up:after { border-color: transparent transparent #ccc transparent; margin-top: -7px; } table.sortable span.reversed, th.reversedarrow.down:after { border-color: transparent transparent #ccc transparent; margin-top: -7px; } table.sortable span.reversed.up, th.reversedarrow.up:after { border-color: #ccc transparent transparent transparent; margin-top: -2px; } table.sortable span.az:before, th.az.down:after { content: "a .. z"; } table.sortable span.az.up:before, th.az.up:after { content: "z .. a"; } table.sortable th.az.nosort:after, th.AZ.nosort:after, th._19.nosort:after, th.month.nosort:after { content: ".."; } table.sortable span.AZ:before, th.AZ.down:after { content: "A .. Z"; } table.sortable span.AZ.up:before, th.AZ.up:after { content: "Z .. A"; } table.sortable span._19:before, th._19.down:after { content: "1 .. 9"; } table.sortable span._19.up:before, th._19.up:after { content: "9 .. 1"; } table.sortable span.month:before, th.month.down:after { content: "jan .. dec"; } table.sortable span.month.up:before, th.month.up:after { content: "dec .. jan"; } table.sortable thead th:not([data-defaultsort=disabled]) { cursor: pointer; position: relative; top: 0; left: 0; } table.sortable thead th:hover:not([data-defaultsort=disabled]) { background: #efefef; } table.sortable thead th div.mozilla { position: relative; }
_x000D_
<link href=https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.13.1/css/all.min.css rel=stylesheet><link href=https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css rel=stylesheet><div class=container><div class=hero-unit><h1>Bootstrap Sortable</h1></div><table class="sortable table table-bordered table-striped"><thead><tr><th style=width:20%;vertical-align:middle data-defaultsign=nospan class=az data-defaultsort=asc rowspan=2><i class="fa fa-fw fa-map-marker"></i>Name<th style=text-align:center colspan=4 data-mainsort=3>Results<th data-defaultsort=disabled><tr><th style=width:20% colspan=2 data-mainsort=1 data-firstsort=desc>Round 1<th style=width:20%>Round 2<th style=width:20%>Total<t
Try sending the data like this:
var data = {};
data.album = this.title;
Then you can access it like
$_POST['album']
Notice not a 'GET'
When you use SET PASSWORD = PASSWORD('your_new_password');
it may crash for it
(ERROR 1819 (HY000): Your password does not satisfy the current policy requirements)
.you can use SET GLOBAL validate_password_policy=LOW;
to slove it.
func Ternary(statement bool, a, b interface{}) interface{} {
if statement {
return a
}
return b
}
func Abs(n int) int {
return Ternary(n >= 0, n, -n).(int)
}
This will not outperform if/else and requires cast but works. FYI:
BenchmarkAbsTernary-8 100000000 18.8 ns/op
BenchmarkAbsIfElse-8 2000000000 0.27 ns/op
Take a look into NSColorWell class reference.
Hope this is your structure:
<ul>
<li>
<div ><img.. /><p>text</p></div>
</li>
<li>
<div ><img.. /><p>text</p></div>
</li>
<li>
<div ><img.. /><p>text</p></div>
</li>
</ul>
By default, it will be add one after another row:
-----
-----
-----
if you want to make it vertical, just add float left to li, give width and height, make sure that content will not break the width:
| | |
| | |
li
{
display:block;
float:left;
width:300px; /* adjust */
height:150px; /* adjust */
padding: 5px; /*adjust*/
}
An easier and more standard way to simulate a mouse click would be directly using the event constructor to create an event and dispatch it.
Though the
MouseEvent.initMouseEvent()
method is kept for backward compatibility, creating of a MouseEvent object should be done using theMouseEvent()
constructor.
var evt = new MouseEvent("click", {
view: window,
bubbles: true,
cancelable: true,
clientX: 20,
/* whatever properties you want to give it */
});
targetElement.dispatchEvent(evt);
Demo: http://jsfiddle.net/DerekL/932wyok6/
This works on all modern browsers. For old browsers including IE, MouseEvent.initMouseEvent
will have to be used unfortunately though it's deprecated.
var evt = document.createEvent("MouseEvents");
evt.initMouseEvent("click", canBubble, cancelable, view,
detail, screenX, screenY, clientX, clientY,
ctrlKey, altKey, shiftKey, metaKey,
button, relatedTarget);
targetElement.dispatchEvent(evt);
I found the http://css-tricks.com/forums/topic/how-to-add-shadows-on-all-4-sides-of-a-block-with-css/ site.
.allSides
{
width:350px;height:200px;
border: solid 1px #555;
background-color: #eed;
box-shadow: 0 0 10px rgba(0,0,0,0.6);
-moz-box-shadow: 0 0 10px rgba(0,0,0,0.6);
-webkit-box-shadow: 0 0 10px rgba(0,0,0,0.6);
-o-box-shadow: 0 0 10px rgba(0,0,0,0.6);
}
My solution to this problem is:
document.onkeypress = function (event) {
event = (event || window.event);
if (event.keyCode == 123) {
return false;
}
}
With the magic number 123
which is the key F12.
Check out the manual: http://www.php.net/manual/en/datetime.format.php
<?php
$date = new DateTime('2000-01-01');
echo $date->format('Y-m-d H:i:s');
?>
Will output: 2000-01-01 00:00:00
This error is encountered when the primary key of a table is updated but it is referenced by a foreign key from another table and the update specific is set to No action. The No action is the default option.
If this is your case and No action is set on the update operation you can change the foreign-key definition to Cascade.
Right click your foreign key and select Modify. In the Foreign key relationships dialog under the INSERT and UPDATE specifics set the UPDATE rule on Cascade:
You can also set the rule using T-SQL:
ALTER TABLE YourTable
DROP Constraint Your_FK
GO
ALTER TABLE YourTable
ADD CONSTRAINT [New_FK_Constraint]
FOREIGN KEY (YourColumn) REFERENCES ReferencedTable(YourColumn)
ON DELETE CASCADE ON UPDATE CASCADE
GO
Hope this helps
A program I wrote, farmComm, may solve this. I released it as open-source and Public Domain.
If it doesn't meet your criteria, you may be able to easily alter it to do so.
farmComm:
The source scripts are available here:
As Already mentioned we have two ways!
And it's done interactively! And take effect immediately!
CTRL + A followed by : And we type scrollback 1000000
And hit ENTER
You detach from the screen and come back! It will be always the same.
You open another new screen! And the value is reset again to default! So it's not a global setting!
Which is done by adding defscrollback 1000000
to .screenrc
(in home)
defscrollback
and not scrollback
(def stand for default)
What you need to know is if the file is not created ! You create it !
> cd ~ && vim .screenrc
And you add defscrollback 1000000
to it!
Or in one command
> echo "defscrollback 1000000" >> .screenrc
(if not created already)
When you add the default to .screenrc
! The already running screen at re-attach will not take effect! The .screenrc
run at the screen creation! And it make sense! Just as with a normal console and shell launch!
And all the new created screens will have the set value!
To check type CTRL + A followed by i
And The result will be as
Importantly the buffer size is the number after the + sign
(in the illustration i set it to 1 000 000)
Note too that when you change it interactively! The effect is immediate and take over the default value!
CTRL+ A followed by ESC (to enter the copy mode).
Then navigate with Up,Down or PgUp PgDown
And ESC again to quit that mode.
(Extra info: to copy hit ENTER to start selecting! Then ENTER again to copy! Simple and cool)
Now the buffer is bigger!
And that's sum it up for the important details!
switch(KEYEVENT.getKeyCode()){
case KeyEvent.VK_ENTER:
// I was trying to use case 13 from the ascii table.
//Krewn Generated method stub...
break;
}
Actually you just need to tell doctrine who's your repository class, if you don't, doctrine uses default repo instead of yours.
@ORM\Entity(repositoryClass="Company\NameOfBundle\Repository\NameOfRepository")
Why not get rid of the inline javascript and do something like this instead?
Inline javascript is considered bad practice as it is outdated.
Notes
Why use addEventListener?
addEventListener is the way to register an event listener as specified in W3C DOM. Its benefits are as follows:
It allows adding more than a single handler for an event. This is particularly useful for DHTML libraries or Mozilla extensions that need to work well even if other libraries/extensions are used. It gives you finer-grained control of the phase when the listener gets activated (capturing vs. bubbling) It works on any DOM element, not just HTML elements.
<a id="back" href="www.mypage.com"> Link </a>
document.getElementById("back").addEventListener("click", window.history.back, false);
On jsfiddle
If you look to run a method on ngOnInit you could do something like this:
import this 2 libraries from RXJS:
import {Observable} from 'rxjs/Rx';
import {Subscription} from "rxjs";
Then declare timer and private subscription, example:
timer= Observable.timer(1000,1000); // 1 second for 2 seconds (2000,1000) etc
private subscription: Subscription;
Last but not least run method when timer stops
ngOnInit() {
this.subscription = this.timer.subscribe(ticks=> {
this.populatecombobox(); //example calling a method that populates a combobox
this.subscription.unsubscribe(); //you need to unsubscribe or it will run infinite times
});
}
That's all, Angular 5
If you're working in Episerver, or another MVC-based CMS, you may find that that particular controller name has already been claimed.
This happened to me when attempting to create a controller called FileUpload
.
In my case, the reason was the following:
As a consequence, when trying to create an object A, the default constructor failed. I have no idea why this wasn't a compile error.
I got it fixed by simply adding a constructor in A, which correctly called B's constructor.
Follow these steps:
steps updated as on 13th July 2020 Thank You: Rahul Daksh
Also nice to know...
Pointer-events can be disabled for a parent element (probably transparent div) and yet be enabled for child elements.
This is helpful if you work with multiple overlapping div layers, where you want to be able click the child elements of any layer. For this all parenting divs get pointer-events: none
and click-children get pointer-events reenabled by pointer-events: all
.parent {
pointer-events:none;
}
.child {
pointer-events:all;
}
<div class="some-container">
<ul class="layer-0 parent">
<li class="click-me child"></li>
<li class="click-me child"></li>
</ul>
<ul class="layer-1 parent">
<li class="click-me-also child"></li>
<li class="click-me-also child"></li>
</ul>
</div>