From the comments of php's date()
manual page:
<?php $mysqltime = date ('Y-m-d H:i:s', $phptime); ?>
You had the 'Y' correct - that's a full year, but 'M' is a three character month, while 'm' is a two digit month. Same issue with 'D' instead of 'd'. 'G' is a 1 or 2 digit hour, where 'H' always has a leading 0 when needed.
This is solution with FormGroup
inside supports ( like here )
Tested on: Angular 4.3.6
get-form-validation-errors.ts
import { AbstractControl, FormGroup, ValidationErrors } from '@angular/forms';
export interface AllValidationErrors {
control_name: string;
error_name: string;
error_value: any;
}
export interface FormGroupControls {
[key: string]: AbstractControl;
}
export function getFormValidationErrors(controls: FormGroupControls): AllValidationErrors[] {
let errors: AllValidationErrors[] = [];
Object.keys(controls).forEach(key => {
const control = controls[ key ];
if (control instanceof FormGroup) {
errors = errors.concat(getFormValidationErrors(control.controls));
}
const controlErrors: ValidationErrors = controls[ key ].errors;
if (controlErrors !== null) {
Object.keys(controlErrors).forEach(keyError => {
errors.push({
control_name: key,
error_name: keyError,
error_value: controlErrors[ keyError ]
});
});
}
});
return errors;
}
Using example:
if (!this.formValid()) {
const error: AllValidationErrors = getFormValidationErrors(this.regForm.controls).shift();
if (error) {
let text;
switch (error.error_name) {
case 'required': text = `${error.control_name} is required!`; break;
case 'pattern': text = `${error.control_name} has wrong pattern!`; break;
case 'email': text = `${error.control_name} has wrong email format!`; break;
case 'minlength': text = `${error.control_name} has wrong length! Required length: ${error.error_value.requiredLength}`; break;
case 'areEqual': text = `${error.control_name} must be equal!`; break;
default: text = `${error.control_name}: ${error.error_name}: ${error.error_value}`;
}
this.error = text;
}
return;
}
If it is a the end of the string, you can also use chomp
:
"hello".chomp("llo") #=> "he"
I think the LINQ expression may be best:
const string MyKey = "myKey"
if (ConfigurationManager.AppSettings.AllKeys.Any(key => key == MyKey))
{
// Key exists
}
The solution:
1) Use Google CDN to load jQuery
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.5/jquery.min.js"></script>
2) As far as I know about the Cycle Plugin, It is compatible with jQuery v1.5-v1.7 because most of the methods were deprecated in jQuery 1.8+ . This is the reason I've used v1.5 of Google CDN jquery in point 1. Most of the examples on cycle plugin use jquery 1.5.
3) Clear Your browser cache, It is the main culprit most of the times.
4) PLease check the loading of jquery using the code below
if(typeof jQuery!=='undefined'){
console.log('jQuery Loaded');
}
else{
console.log('not loaded yet');
}
Major Edit:
The reason for the error is fairly simple:
You have called the cycle method before the jquery is loaded.
call cycle plugin on DOM ready..
$(document).ready(function(){
$('#slider').cycle({
fx: 'scrollHorz',
speed: 'fast',
next: '#next',
prev: '#prev'
});
});
There is two easy way to set the alias.
Using Bash
Open bash terminal and type git command. For instance:
$ git config --global alias.a add
$ git config --global alias.aa 'add .'
$ git config --global alias.cm 'commit -m'
$ git config --global alias.s status
---
---
It will eventually add those aliases on .gitconfig file.
Updating .gitconfig file
Open .gitconfig file located at 'C:\Users\username\.gitconfig' in Windows environment. Then add following lines:
[alias]
a = add
aa = add .
cm = commit -m
gau = add --update
au = add --update
b = branch
---
---
Standard C doesn't define binary constants. There's a GNU (I believe) extension though (among popular compilers, clang adapts it as well): the 0b
prefix:
int foo = 0b1010;
If you want to stick with standard C, then there's an option: you can combine a macro and a function to create an almost readable "binary constant" feature:
#define B(x) S_to_binary_(#x)
static inline unsigned long long S_to_binary_(const char *s)
{
unsigned long long i = 0;
while (*s) {
i <<= 1;
i += *s++ - '0';
}
return i;
}
And then you can use it like this:
int foo = B(1010);
If you turn on heavy compiler optimizations, the compiler will most likely eliminate the function call completely (constant folding) or will at least inline it, so this won't even be a performance issue.
Proof:
The following code:
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>
#define B(x) S_to_binary_(#x)
static inline unsigned long long S_to_binary_(const char *s)
{
unsigned long long i = 0;
while (*s) {
i <<= 1;
i += *s++ - '0';
}
return i;
}
int main()
{
int foo = B(001100101);
printf("%d\n", foo);
return 0;
}
has been compiled using clang -o baz.S baz.c -Wall -O3 -S
, and it produced the following assembly:
.section __TEXT,__text,regular,pure_instructions
.globl _main
.align 4, 0x90
_main: ## @main
.cfi_startproc
## BB#0:
pushq %rbp
Ltmp2:
.cfi_def_cfa_offset 16
Ltmp3:
.cfi_offset %rbp, -16
movq %rsp, %rbp
Ltmp4:
.cfi_def_cfa_register %rbp
leaq L_.str1(%rip), %rdi
movl $101, %esi ## <= This line!
xorb %al, %al
callq _printf
xorl %eax, %eax
popq %rbp
ret
.cfi_endproc
.section __TEXT,__cstring,cstring_literals
L_.str1: ## @.str1
.asciz "%d\n"
.subsections_via_symbols
So clang
completely eliminated the call to the function, and replaced its return value with 101
. Neat, huh?
Use Microsoft Message Analyzer v1.4
Navigate to ProcessId from the field chooser.
Etw
-> EtwProviderMsg
--> EventRecord
---> Header
----> ProcessId
Right click and Add as Column
In the Blade Template : define a variable like this
@extends('app',['title' => 'Your Title Goes Here'])
@section('content')
And in the app.blade.php or any other of your choice ( I'm just following default Laravel 5 setup )
<title>{{ $title or 'Default title Information if not set explicitly' }}</title>
This is my first answer here. Hope it works.Good luck!
Just use
string.Join(",", yourCollection)
This way you don't need the StringBuilder
and the loop.
Long addition about async case. As of 2019, it's not a rare setup when the data are coming asynchronously.
In case your data are in async collection, there is no string.Join
overload taking IAsyncEnumerable<T>
. But it's easy to create one manually, hacking the code from string.Join
:
public static class StringEx
{
public static async Task<string> JoinAsync<T>(string separator, IAsyncEnumerable<T> seq)
{
if (seq == null)
throw new ArgumentNullException(nameof(seq));
await using (var en = seq.GetAsyncEnumerator())
{
if (!await en.MoveNextAsync())
return string.Empty;
string firstString = en.Current?.ToString();
if (!await en.MoveNextAsync())
return firstString ?? string.Empty;
// Null separator and values are handled by the StringBuilder
var sb = new StringBuilder(256);
sb.Append(firstString);
do
{
var currentValue = en.Current;
sb.Append(separator);
if (currentValue != null)
sb.Append(currentValue);
}
while (await en.MoveNextAsync());
return sb.ToString();
}
}
}
If the data are coming asynchronously but the interface IAsyncEnumerable<T>
is not supported (like the mentioned in comments SqlDataReader
), it's relatively easy to wrap the data into an IAsyncEnumerable<T>
:
async IAsyncEnumerable<(object first, object second, object product)> ExtractData(
SqlDataReader reader)
{
while (await reader.ReadAsync())
yield return (reader[0], reader[1], reader[2]);
}
and use it:
Task<string> Stringify(SqlDataReader reader) =>
StringEx.JoinAsync(
", ",
ExtractData(reader).Select(x => $"{x.first} * {x.second} = {x.product}"));
In order to use Select
, you'll need to use nuget package System.Interactive.Async
. Here you can find a compilable example.
.black {
position:absolute;
top:0;
bottom:0;
left:0;
right:0;
background:rgba(0,0,0,.5);
}
.message {
position: absolute;
top:50%;
left: 50%;
transform: translate(-50%, -50%);
background:yellow;
width:200px;
padding:10px;
}
-
----------
<div class="black">
<div class="message">
This is a popup message.
</div>
I always use this syntax to create the foreign key constraint between 2 tables
Alter Table ForeignKeyTable
Add constraint `ForeignKeyTable_ForeignKeyColumn_FK`
`Foreign key (ForeignKeyColumn)` references `PrimaryKeyTable (PrimaryKeyColumn)`
i.e.
Alter Table tblEmployee
Add constraint tblEmployee_DepartmentID_FK
foreign key (DepartmentID) references tblDepartment (ID)
Cast your TabPage to a Control, then set the Enabled property to false.
((Control)this.tabPage).Enabled = false;
Therefore, the tabpage's header will still be enabled but its contents will be disabled.
Another example of Apache Common StringSubstitutor for simple named placeholder.
String template = "Welcome to {theWorld}. My name is {myName}.";
Map<String, String> values = new HashMap<>();
values.put("theWorld", "Stackoverflow");
values.put("myName", "Thanos");
String message = StringSubstitutor.replace(template, values, "{", "}");
System.out.println(message);
// Welcome to Stackoverflow. My name is Thanos.
An alternative would be to place your regexp in non-capturing parentheses. Then make that expression optional using the ?
qualifier, which will look for 0 (i.e. empty string) or 1 instances of the non-captured group.
For example:
/(?: some regexp )?/
In your case the regular expression would look something like this:
/^(?:[\w\.\-]+@([\w\-]+\.)+[a-zA-Z]+)?$/
No |
"or" operator necessary!
Here is the Mozilla documentation for JavaScript Regular Expression syntax.
I would also suggest changing over from uniqueIdentifier
to this open source library (2 simple categories really) that utilize the device’s MAC Address along with the App Bundle Identifier to generate a unique ID in your applications that can be used as a UDID replacement.
Keep in mind that unlike the UDID this number will be different for every app.
You simply need to import the included NSString
and UIDevice
categories and call [[UIDevice currentDevice] uniqueDeviceIdentifier]
like so:
#import "UIDevice+IdentifierAddition.h"
#import "NSString+MD5Addition.h"
NSString *iosFiveUDID = [[UIDevice currentDevice] uniqueDeviceIdentifier]
You can find it on Github here:
UIDevice with UniqueIdentifier for iOS 5
Here are the categories (just the .m files - check the github project for the headers):
UIDevice+IdentifierAddition.m
#import "UIDevice+IdentifierAddition.h"
#import "NSString+MD5Addition.h"
#include <sys/socket.h> // Per msqr
#include <sys/sysctl.h>
#include <net/if.h>
#include <net/if_dl.h>
@interface UIDevice(Private)
- (NSString *) macaddress;
@end
@implementation UIDevice (IdentifierAddition)
////////////////////////////////////////////////////////////////////////////////
#pragma mark -
#pragma mark Private Methods
// Return the local MAC addy
// Courtesy of FreeBSD hackers email list
// Accidentally munged during previous update. Fixed thanks to erica sadun & mlamb.
- (NSString *) macaddress{
int mib[6];
size_t len;
char *buf;
unsigned char *ptr;
struct if_msghdr *ifm;
struct sockaddr_dl *sdl;
mib[0] = CTL_NET;
mib[1] = AF_ROUTE;
mib[2] = 0;
mib[3] = AF_LINK;
mib[4] = NET_RT_IFLIST;
if ((mib[5] = if_nametoindex("en0")) == 0) {
printf("Error: if_nametoindex error\n");
return NULL;
}
if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) {
printf("Error: sysctl, take 1\n");
return NULL;
}
if ((buf = malloc(len)) == NULL) {
printf("Could not allocate memory. error!\n");
return NULL;
}
if (sysctl(mib, 6, buf, &len, NULL, 0) < 0) {
printf("Error: sysctl, take 2");
return NULL;
}
ifm = (struct if_msghdr *)buf;
sdl = (struct sockaddr_dl *)(ifm + 1);
ptr = (unsigned char *)LLADDR(sdl);
NSString *outstring = [NSString stringWithFormat:@"%02X:%02X:%02X:%02X:%02X:%02X",
*ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), *(ptr+5)];
free(buf);
return outstring;
}
////////////////////////////////////////////////////////////////////////////////
#pragma mark -
#pragma mark Public Methods
- (NSString *) uniqueDeviceIdentifier{
NSString *macaddress = [[UIDevice currentDevice] macaddress];
NSString *bundleIdentifier = [[NSBundle mainBundle] bundleIdentifier];
NSString *stringToHash = [NSString stringWithFormat:@"%@%@",macaddress,bundleIdentifier];
NSString *uniqueIdentifier = [stringToHash stringFromMD5];
return uniqueIdentifier;
}
- (NSString *) uniqueGlobalDeviceIdentifier{
NSString *macaddress = [[UIDevice currentDevice] macaddress];
NSString *uniqueIdentifier = [macaddress stringFromMD5];
return uniqueIdentifier;
}
@end
NSString+MD5Addition.m:
#import "NSString+MD5Addition.h"
#import <CommonCrypto/CommonDigest.h>
@implementation NSString(MD5Addition)
- (NSString *) stringFromMD5{
if(self == nil || [self length] == 0)
return nil;
const char *value = [self UTF8String];
unsigned char outputBuffer[CC_MD5_DIGEST_LENGTH];
CC_MD5(value, strlen(value), outputBuffer);
NSMutableString *outputString = [[NSMutableString alloc] initWithCapacity:CC_MD5_DIGEST_LENGTH * 2];
for(NSInteger count = 0; count < CC_MD5_DIGEST_LENGTH; count++){
[outputString appendFormat:@"%02x",outputBuffer[count]];
}
return [outputString autorelease];
}
@end
public void onClick(View v) {
Context context = v.getContext();
CharSequence text = "Message";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
}
If you are using tinker and want to log the SQL query formed you can do
$ php artisan tinker
Psy Shell v0.9.9 (PHP 7.3.5 — cli) by Justin Hileman
>>> DB::listen(function ($query) { dump($query->sql); dump($query->bindings); dump($query->time); });
=> null
>>> App\User::find(1)
"select * from `users` where `users`.`id` = ? limit 1"
array:1 [
0 => 1
]
6.99
=> App\User {#3131
id: 1,
name: "admin",
email: "[email protected]",
created_at: "2019-01-11 19:06:23",
updated_at: "2019-01-11 19:06:23",
}
>>>
Being a fan of the Joda Time library, here's how you can do it that way using a Joda DateTime
:
import org.joda.time.format.*;
import org.joda.time.*;
...
String dateString = "2009-04-17 10:41:33";
// parse the string
DateTimeFormatter formatter = DateTimeFormat.forPattern("yyyy-MM-dd HH:mm:ss");
DateTime dateTime = formatter.parseDateTime(dateString);
// add two hours
dateTime = dateTime.plusHours(2); // easier than mucking about with Calendar and constants
System.out.println(dateTime);
If you still need to use java.util.Date
objects before/after this conversion, the Joda DateTime
API provides some easy toDate()
and toCalendar()
methods for easy translation.
The Joda API provides so much more in the way of convenience over the Java Date/Calendar API.
You can't float or set the width of an inline element. Remove display: inline;
from both classes and your markup should present fine.
EDIT: You can set the width, but it will cause the element to be rendered as a block.
Try this I learned this from @nmaier when I was mucking around with converting to ico: Well i dont really understand what array buffer is but it does what we need:
function previewFile(file) {
var reader = new FileReader();
reader.onloadend = function () {
console.log(reader.result); //this is an ArrayBuffer
}
reader.readAsArrayBuffer(file);
}
notice how i just changed your readAsDataURL
to readAsArrayBuffer
.
Here is the example @nmaier gave me: https://stackoverflow.com/a/24253997/1828637
it has a fiddle
if you want to take this and make a file out of it i would think you would use file-output-stream in the onloadend
Not sure if this will help in your context...
Can the soap object be cast as a BindingProvider ?
MyWebServiceSoap soap;
MyWebService service = new MyWebService("http://www.google.com");
soap = service.getMyWebServiceSoap();
// set timeouts here
((BindingProvider)soap).getRequestContext().put("com.sun.xml.internal.ws.request.timeout", 10000);
soap.sendRequestToMyWebService();
On the other hand if you are wanting to set the timeout on the initialization of the MyWebService object then this will not help.
This worked for me when wanting to timeout the individual WebService calls.
You can do it using xml.
Create an xml layout and name it like my_edit_text_border.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="wrap_content"
android:layout_width="wrap_content">
<item>
<shape android:shape="rectangle">
<solid android:color="#ffffff"/>
<corners android:radius="5dp" />
<stroke
android:width="2dp"
android:color="#949494"
/>
</shape>
</item>
</selector>
Add background to your Edittext
<EditText
android:id="@+id/editText1"
..
android:background="@layout/my_edit_text_border">
split(x,matrix(1:n,n,length(x))[1:length(x)])
perhaps this is more clear, but the same idea:
split(x,rep(1:n, ceiling(length(x)/n),length.out = length(x)))
if you want it ordered,throw a sort around it
Perhaps a more pythonic way of doing so.
from numpy import *
import math
import matplotlib.pyplot as plt
t = linspace(0,2*math.pi,400)
a = sin(t)
b = cos(t)
c = a + b
plt.plot(t, a, t, b, t, c)
plt.show()
Just run the contents through parseFloat(). It will return NaN
on invalid input.
Android Studio 3.5.3 It works with this configuration.
Don't Include the android-support-v4 in the library , instead you can add it to your project as an external jar using build path menu > add external jar
Sometimes you have to clean your project.
An alternative in Python 2.6 or above is to use collections.namedtuple()
-- it saves you writing any special methods:
from collections import namedtuple
MyThingBase = namedtuple("MyThingBase", ["name", "location"])
class MyThing(MyThingBase):
def __new__(cls, name, location, length):
obj = MyThingBase.__new__(cls, name, location)
obj.length = length
return obj
a = MyThing("a", "here", 10)
b = MyThing("a", "here", 20)
c = MyThing("c", "there", 10)
a == b
# True
hash(a) == hash(b)
# True
a == c
# False
You can use:
PyXML:
from xml.dom.ext.reader import Sax2
from xml import xpath
doc = Sax2.FromXmlFile('foo.xml').documentElement
for url in xpath.Evaluate('//@Url', doc):
print url.value
libxml2:
import libxml2
doc = libxml2.parseFile('foo.xml')
for url in doc.xpathEval('//@Url'):
print url.content
In addition to all the options listed by other answers, you can use git reset
with the Git object (hash, branch, HEAD~x
, tag, ...) of interest and the path of your file:
git reset <hash> /path/to/file
In your example:
git reset 27cf8e8 my_file.txt
What this does is that it will revert my_file.txt
to its version at the commit 27cf8e8
in the index while leaving it untouched (so in its current version) in the working directory.
From there, things are very easy:
git diff --cached my_file.txt
git restore --staged file.txt
(or, prior to Git v2.23, git reset file.txt
) if you decide that you don't like itgit commit -m "Restore version of file.txt from 27cf8e8"
and git restore file.txt
(or, prior to Git v2.23, git checkout -- file.txt
)git add -p file.txt
(then git commit
and git restore file.txt
).Lastly, you can even interactively pick and choose which hunk(s) to reset in the very first step if you run:
git reset -p 27cf8e8 my_file.txt
So git reset
with a path gives you lots of flexibility to retrieve a specific version of a file to compare with its currently checked-out version and, if you choose to do so, to revert fully or only for some hunks to that version.
Edit: I just realized that I am not answering your question since what you wanted wasn't a diff or an easy way to retrieve part or all of the old version but simply to cat
that version.
Of course, you can still do that after resetting the file with:
git show :file.txt
to output to standard output or
git show :file.txt > file_at_27cf8e8.txt
But if this was all you wanted, running git show
directly with git show 27cf8e8:file.txt
as others suggested is of course much more direct.
I am going to leave this answer though because running git show
directly allows you to get that old version instantly, but if you want to do something with it, it isn't nearly as convenient to do so from there as it is if you reset that version in the index.
Working on .Net Core 2.2 and 3.0 as of now.
To get the projects root directory within a Controller:
Create a property for the hosting environment
private readonly IHostingEnvironment _hostingEnvironment;
Add Microsoft.AspNetCore.Hosting to your controller
using Microsoft.AspNetCore.Hosting;
Register the service in the constructor
public HomeController(IHostingEnvironment hostingEnvironment) {
_hostingEnvironment = hostingEnvironment;
}
Now, to get the projects root path
string projectRootPath = _hostingEnvironment.ContentRootPath;
To get the "wwwroot" path, use
_hostingEnvironment.WebRootPath
std
namespace (where features of the C++ Standard Library, such as string
or vector
, are declared).After you write this instruction, if the compiler sees string
it will know that you may be referring to std::string
, and if it sees vector
, it will know that you may be referring to std::vector
. (Provided that you have included in your compilation unit the header files where they are defined, of course.)
If you don't write it, when the compiler sees string
or vector
it will not know what you are refering to. You will need to explicitly tell it std::string
or std::vector
, and if you don't, you will get a compile error.
In my case near any line a red circle appeared with a cross and red line with a message: "No executable code found at line ..." like in Android studio gradle breakpoint No executable code found at line.
A problem appeared after updating of build.gradle
. We included Kotlin support, so a number of methods exceeded 64K. Problem lines:
buildTypes {
debug {
minifyEnabled true
Change them to:
buildTypes {
debug {
minifyEnabled false
debuggable true
Then sync a gradle with a button "Sync Project with Gradle Files". If after restarting of your application you will get an error: "Error:The number of method references in a .dex file cannot exceed 64K. Learn how to resolve this issue at https://developer.android.com/tools/building/multidex.html", then, like in The number of method references in a .dex file cannot exceed 64k API 17 add the following lines to build.gradle
:
android {
defaultConfig {
...
// Enabling multidex support.
multiDexEnabled true
}
...
}
dependencies {
implementation 'com.android.support:multidex:1.0.2'
}
UPDATE
According to https://developer.android.com/studio/build/multidex.html do the following to enable multidex support below Android 5.0. Else it won't start in these devices.
Open AndroidManifest
and find tag <application>
. Near android:name=
is a reference to an Application class. Open this class. Extend Application class with MultiDexApplication
so:
public class MyApplication extends MultiDexApplication { ... }
If no Application class set, write so:
<application
android:name="android.support.multidex.MultiDexApplication" >
...
</application>
I was getting this issue for instaling expo cli and I fixed by just following four steps mentioned in the npm documentation here.
Problem is some version of npm fail to locate folder for global installations of package. Following these steps we can create or modify the .profile file in Home directory of user and give it a proper PATH there so it works like a charm.
Try this it helped me and I spent around an hour for this issue. My node version was 6.0
Steps I follow
Back up your computer. On the command line, in your home directory, create a directory for global installations:
mkdir ~/.npm-global
Configure npm to use the new directory path:
npm config set prefix '~/.npm-global'
In your preferred text editor, open or create a ~/.profile file and add this line:
export PATH=~/.npm-global/bin:$PATH
On the command line, update your system variables:
source ~/.profile
To test your new configuration, install a package globally without using sudo:
npm install -g jshint
The evaluated value for settext was integer so it went to see a resource attached to it but it was not found, you wanted to set text so it should be string so convert integer into string by attaching .toStringe
or String.valueOf(int)
will solve your problem!
As per the above this will fix server side validation of an Email Address:
[Display(Name = "Email address")]
[Required(ErrorMessage = "The email address is required")]
[EmailAddress(ErrorMessage = "Invalid Email Address")]
public string Email { get; set; }
However...
If you are using JQuery client side validation you should know that the Email validates differently server side (model validation) to client side (JQuery validation). In that test@example (a top level domain email address) would fail server side but would validate fine on the client side.
To fix this disparity you can override the default client side email validation as follows:
$.validator.methods.email = function (value, element) {
return this.optional(element) || /^[a-z0-9._]+@[a-z]+\.[a-z.]+/.test(value);
}
I would suggest using the duplicated method on the Pandas Index itself:
df3 = df3[~df3.index.duplicated(keep='first')]
While all the other methods work, the currently accepted answer is by far the least performant for the provided example. Furthermore, while the groupby method is only slightly less performant, I find the duplicated method to be more readable.
Using the sample data provided:
>>> %timeit df3.reset_index().drop_duplicates(subset='index', keep='first').set_index('index')
1000 loops, best of 3: 1.54 ms per loop
>>> %timeit df3.groupby(df3.index).first()
1000 loops, best of 3: 580 µs per loop
>>> %timeit df3[~df3.index.duplicated(keep='first')]
1000 loops, best of 3: 307 µs per loop
Note that you can keep the last element by changing the keep argument to 'last'
.
It should also be noted that this method works with MultiIndex
as well (using df1 as specified in Paul's example):
>>> %timeit df1.groupby(level=df1.index.names).last()
1000 loops, best of 3: 771 µs per loop
>>> %timeit df1[~df1.index.duplicated(keep='last')]
1000 loops, best of 3: 365 µs per loop
jkhouw1 answer is correct one, but it lacks some details, see below:
It is much easier for at least API > 21. Assume that we have VectorDrawable from resources (example code to retrieve it):
val iconResource = context.resources.getIdentifier(name, "drawable", context.packageName)
val drawable = context.resources.getDrawable(iconResource, null)
For that VectorDrawable just set desired size:
drawable.setBounds(0, 0, size, size)
And show drawable in button:
button.setCompoundDrawables(null, drawable, null, null)
That's it. But note to use setCompoundDrawables (not Intrinsic version)!
Example code (without exception-handling):
XMLGregorianCalendar xgc =
DatatypeFactory // Data-type converter.
.newInstance() // Instantiate a converter object.
.newXMLGregorianCalendar( // Converter going from `GregorianCalendar` to `XMLGregorianCalendar`.
GregorianCalendar.from( // Convert from modern `ZonedDateTime` class to legacy `GregorianCalendar` class.
LocalDate // Modern class for representing a date-only, without time-of-day and without time zone.
.parse( "2014-01-07" ) // Parsing strings in standard ISO 8601 format is handled by default, with no need for custom formatting pattern.
.atStartOfDay( ZoneOffset.UTC ) // Determine the first moment of the day as seen in UTC. Returns a `ZonedDateTime` object.
) // Returns a `GregorianCalendar` object.
) // Returns a `XMLGregorianCalendar` object.
;
XMLGregorianCalendar
classAvoid the terrible legacy date-time classes whenever possible, such as XMLGregorianCalendar
, GregorianCalendar
, Calendar
, and Date
. Use only modern java.time classes.
When presented with a string such as "2014-01-07"
, parse as a LocalDate
.
LocalDate.parse( "2014-01-07" )
To get a date with time-of-day, assuming you want the first moment of the day, specify a time zone. Let java.time determine the first moment of the day, as it is not always 00:00:00.0 in some zones on some dates.
LocalDate.parse( "2014-01-07" )
.atStartOfDay( ZoneId.of( "America/Montreal" ) )
This returns a ZonedDateTime
object.
ZonedDateTime zdt =
LocalDate
.parse( "2014-01-07" )
.atStartOfDay( ZoneId.of( "America/Montreal" ) )
;
zdt.toString() = 2014-01-07T00:00-05:00[America/Montreal]
But apparently, you want the start-of-day as seen in UTC (an offset of zero hours-minutes-seconds). So we specify ZoneOffset.UTC
constant as our ZoneId
argument.
ZonedDateTime zdt =
LocalDate
.parse( "2014-01-07" )
.atStartOfDay( ZoneOffset.UTC )
;
zdt.toString() = 2014-01-07T00:00Z
The Z
on the end means UTC (an offset of zero), and is pronounced “Zulu”.
If you must work with legacy classes, convert to GregorianCalendar
, a subclass of Calendar
.
GregorianCalendar gc = GregorianCalendar.from( zdt ) ;
gc.toString() = java.util.GregorianCalendar[time=1389052800000,areFieldsSet=true,areAllFieldsSet=true,lenient=true,zone=sun.util.calendar.ZoneInfo[id="UTC",offset=0,dstSavings=0,useDaylight=false,transitions=0,lastRule=null],firstDayOfWeek=2,minimalDaysInFirstWeek=4,ERA=1,YEAR=2014,MONTH=0,WEEK_OF_YEAR=2,WEEK_OF_MONTH=2,DAY_OF_MONTH=7,DAY_OF_YEAR=7,DAY_OF_WEEK=3,DAY_OF_WEEK_IN_MONTH=1,AM_PM=0,HOUR=0,HOUR_OF_DAY=0,MINUTE=0,SECOND=0,MILLISECOND=0,ZONE_OFFSET=0,DST_OFFSET=0]
Apparently, you really need an object of the legacy class XMLGregorianCalendar
. If the calling code cannot be updated to use java.time, convert.
XMLGregorianCalendar xgc =
DatatypeFactory
.newInstance()
.newXMLGregorianCalendar( gc )
;
Actually, that code requires a try-catch.
try
{
XMLGregorianCalendar xgc =
DatatypeFactory
.newInstance()
.newXMLGregorianCalendar( gc );
}
catch ( DatatypeConfigurationException e )
{
e.printStackTrace();
}
xgc = 2014-01-07T00:00:00.000Z
Putting that all together, with appropriate exception-handling.
// Given an input string such as "2014-01-07", return a `XMLGregorianCalendar` object
// representing first moment of the day on that date as seen in UTC.
static public XMLGregorianCalendar getXMLGregorianCalendar ( String input )
{
Objects.requireNonNull( input );
if( input.isBlank() ) { throw new IllegalArgumentException( "Received empty/blank input string for date argument. Message # 11818896-7412-49ba-8f8f-9b3053690c5d." ) ; }
XMLGregorianCalendar xgc = null;
ZonedDateTime zdt = null;
try
{
zdt =
LocalDate
.parse( input )
.atStartOfDay( ZoneOffset.UTC );
}
catch ( DateTimeParseException e )
{
throw new IllegalArgumentException( "Faulty input string for date does not comply with standard ISO 8601 format. Message # 568db0ef-d6bf-41c9-8228-cc3516558e68." );
}
GregorianCalendar gc = GregorianCalendar.from( zdt );
try
{
xgc =
DatatypeFactory
.newInstance()
.newXMLGregorianCalendar( gc );
}
catch ( DatatypeConfigurationException e )
{
e.printStackTrace();
}
Objects.requireNonNull( xgc );
return xgc ;
}
Usage.
String input = "2014-01-07";
XMLGregorianCalendar xgc = App.getXMLGregorianCalendar( input );
Dump to console.
System.out.println( "xgc = " + xgc );
xgc = 2014-01-07T00:00:00.000Z
Do not conflate a date-time value with its textual representation. We parse strings to get a date-time object, and we ask the date-time object to generate a string to represent its value. The date-time object has no ‘format’, only strings have a format.
So shift your thinking into two separate modes: model and presentation. Determine the date-value you have in mind, applying appropriate time zone, as the model. When you need to display that value, generate a string in a particular format as expected by the user.
The Question and other Answers all use old troublesome date-time classes now supplanted by the java.time classes.
Your input string "2014-01-07"
is in standard ISO 8601 format.
The T
in the middle separates date portion from time portion.
The Z
on the end is short for Zulu and means UTC.
Fortunately, the java.time classes use the ISO 8601 formats by default when parsing/generating strings. So no need to specify a formatting pattern.
LocalDate
The LocalDate
class represents a date-only value without time-of-day and without time zone.
LocalDate ld = LocalDate.parse( "2014-01-07" ) ;
ld.toString(): 2014-01-07
ZonedDateTime
If you want to see the first moment of that day, specify a ZoneId
time zone to get a moment on the timeline, a ZonedDateTime
. The time zone is crucial because the date varies around the globe by zone. A few minutes after midnight in Paris France is a new day while still “yesterday” in Montréal Québec.
Never assume the day begins at 00:00:00. Anomalies such as Daylight Saving Time (DST) means the day may begin at another time-of-day such as 01:00:00. Let java.time determine the first moment.
ZoneId z = ZoneId.of( "America/Montreal" ) ;
ZonedDateTime zdt = ld.atStartOfDay( z ) ;
zdt.toString(): 2014-01-07T00:00:00Z
For your desired format, generate a string using the predefined formatter DateTimeFormatter.ISO_LOCAL_DATE_TIME
and then replace the T
in the middle with a SPACE.
String output = zdt.format( DateTimeFormatter.ISO_LOCAL_DATE_TIME )
.replace( "T" , " " ) ;
2014-01-07 00:00:00
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date
, Calendar
, & SimpleDateFormat
.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
Where to obtain the java.time classes?
The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval
, YearWeek
, YearQuarter
, and more.
Reducing memory usage in Python is difficult, because Python does not actually release memory back to the operating system. If you delete objects, then the memory is available to new Python objects, but not free()
'd back to the system (see this question).
If you stick to numeric numpy arrays, those are freed, but boxed objects are not.
>>> import os, psutil, numpy as np
>>> def usage():
... process = psutil.Process(os.getpid())
... return process.get_memory_info()[0] / float(2 ** 20)
...
>>> usage() # initial memory usage
27.5
>>> arr = np.arange(10 ** 8) # create a large array without boxing
>>> usage()
790.46875
>>> del arr
>>> usage()
27.52734375 # numpy just free()'d the array
>>> arr = np.arange(10 ** 8, dtype='O') # create lots of objects
>>> usage()
3135.109375
>>> del arr
>>> usage()
2372.16796875 # numpy frees the array, but python keeps the heap big
Python keep our memory at high watermark, but we can reduce the total number of dataframes we create. When modifying your dataframe, prefer inplace=True
, so you don't create copies.
Another common gotcha is holding on to copies of previously created dataframes in ipython:
In [1]: import pandas as pd
In [2]: df = pd.DataFrame({'foo': [1,2,3,4]})
In [3]: df + 1
Out[3]:
foo
0 2
1 3
2 4
3 5
In [4]: df + 2
Out[4]:
foo
0 3
1 4
2 5
3 6
In [5]: Out # Still has all our temporary DataFrame objects!
Out[5]:
{3: foo
0 2
1 3
2 4
3 5, 4: foo
0 3
1 4
2 5
3 6}
You can fix this by typing %reset Out
to clear your history. Alternatively, you can adjust how much history ipython keeps with ipython --cache-size=5
(default is 1000).
Wherever possible, avoid using object dtypes.
>>> df.dtypes
foo float64 # 8 bytes per value
bar int64 # 8 bytes per value
baz object # at least 48 bytes per value, often more
Values with an object dtype are boxed, which means the numpy array just contains a pointer and you have a full Python object on the heap for every value in your dataframe. This includes strings.
Whilst numpy supports fixed-size strings in arrays, pandas does not (it's caused user confusion). This can make a significant difference:
>>> import numpy as np
>>> arr = np.array(['foo', 'bar', 'baz'])
>>> arr.dtype
dtype('S3')
>>> arr.nbytes
9
>>> import sys; import pandas as pd
>>> s = pd.Series(['foo', 'bar', 'baz'])
dtype('O')
>>> sum(sys.getsizeof(x) for x in s)
120
You may want to avoid using string columns, or find a way of representing string data as numbers.
If you have a dataframe that contains many repeated values (NaN is very common), then you can use a sparse data structure to reduce memory usage:
>>> df1.info()
<class 'pandas.core.frame.DataFrame'>
Int64Index: 39681584 entries, 0 to 39681583
Data columns (total 1 columns):
foo float64
dtypes: float64(1)
memory usage: 605.5 MB
>>> df1.shape
(39681584, 1)
>>> df1.foo.isnull().sum() * 100. / len(df1)
20.628483479893344 # so 20% of values are NaN
>>> df1.to_sparse().info()
<class 'pandas.sparse.frame.SparseDataFrame'>
Int64Index: 39681584 entries, 0 to 39681583
Data columns (total 1 columns):
foo float64
dtypes: float64(1)
memory usage: 543.0 MB
You can view the memory usage (docs):
>>> df.info()
<class 'pandas.core.frame.DataFrame'>
Int64Index: 39681584 entries, 0 to 39681583
Data columns (total 14 columns):
...
dtypes: datetime64[ns](1), float64(8), int64(1), object(4)
memory usage: 4.4+ GB
As of pandas 0.17.1, you can also do df.info(memory_usage='deep')
to see memory usage including objects.
The "call" solution has some problems.
It fails with many different contents, as the parameters of a CALL
are parsed twice by the parser.
These lines will produce more or less strange problems
one
two%222
three & 333
four=444
five"555"555"
six"&666
seven!777^!
the next line is empty
the end
Therefore you shouldn't use the value of %%a
with a call, better move it to a variable and then call a function with only the name of the variable.
@echo off
SETLOCAL DisableDelayedExpansion
FOR /F "usebackq delims=" %%a in (`"findstr /n ^^ t.txt"`) do (
set "myVar=%%a"
call :processLine myVar
)
goto :eof
:processLine
SETLOCAL EnableDelayedExpansion
set "line=!%1!"
set "line=!line:*:=!"
echo(!line!
ENDLOCAL
goto :eof
I successfully implemented my Speech-Service with offline capabilities by using onPartialResults when offline and onResults when online.
you can also mark the application as private if you don’t plan to put it in an actual repository.
{
"name": "my-application",
"version": "0.0.1",
"private": true
}
If you want to echo it out for later execution it's ok
If you want to execute the JS and use the results in PHP use V8JS
V8Js::registerExtension('say_hi', 'print("hey from extension! "); var said_hi=true;', array(), true);
$v8 = new V8Js();
$v8->executeString('print("hello from regular code!")', 'test.php');
$v8->executeString('if (said_hi) { print(" extension already said hi"); }');
You can refer here for further reference: What are Extensions in php v8js?
If you want to execute HTML&JS and use the output in PHP http://htmlunit.sourceforge.net/ is your solution
This worked for me. The key is to use * as Row height.
<Grid x:Name="grid">
<Grid.RowDefinitions>
<RowDefinition Height="60"/>
<RowDefinition Height="*"/>
<RowDefinition Height="10"/>
</Grid.RowDefinitions>
<TabControl Grid.Row="1" x:Name="tabItem">
<TabItem x:Name="ta"
Header="List of all Clients">
<DataGrid Name="clientsgrid" AutoGenerateColumns="True" Margin="2"
></DataGrid>
</TabItem>
</TabControl>
</Grid>
try this one, which simulates a click on an anchor.
var a = document.createElement('a');
a.href='http://www.google.com';
a.target = '_blank';
document.body.appendChild(a);
a.click();
With the v3 API, you can easily close the InfoWindow
with the InfoWindow.close()
method. You simply need to keep a reference to the InfoWindow
object that you are using. Consider the following example, which opens up an InfoWindow
and closes it after 5 seconds:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>Google Maps API InfoWindow Demo</title>
<script src="http://maps.google.com/maps/api/js?sensor=false"
type="text/javascript"></script>
</head>
<body>
<div id="map" style="width: 400px; height: 500px;"></div>
<script type="text/javascript">
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 4,
center: new google.maps.LatLng(-25.36388, 131.04492),
mapTypeId: google.maps.MapTypeId.ROADMAP
});
var marker = new google.maps.Marker({
position: map.getCenter(),
map: map
});
var infowindow = new google.maps.InfoWindow({
content: 'An InfoWindow'
});
infowindow.open(map, marker);
setTimeout(function () { infowindow.close(); }, 5000);
</script>
</body>
</html>
If you have a separate InfoWindow
object for each Marker
, you may want to consider adding the InfoWindow
object as a property of your Marker
objects:
var marker = new google.maps.Marker({
position: map.getCenter(),
map: map
});
marker.infowindow = new google.maps.InfoWindow({
content: 'An InfoWindow'
});
Then you would be able to open and close that InfoWindow
as follows:
marker.infowindow.open(map, marker);
marker.infowindow.close();
The same applies if you have an array of markers:
var markers = [];
marker[0] = new google.maps.Marker({
position: map.getCenter(),
map: map
});
marker[0].infowindow = new google.maps.InfoWindow({
content: 'An InfoWindow'
});
// ...
marker[0].infowindow.open(map, marker);
marker[0].infowindow.close();
Using with FILEPATH
option might work:
set(CMAKE_CXX_COMPILER:FILEPATH C:/MinGW/bin/gcc.exe)
Many of these projects mentioned above are dead or dying, lacking activity and interest from author side. Interesting to follow how this area develops.
For the record, in era of plugin based implementations, KDE camp had an attempt to solve this with plugin and non-language specific way and created the Kross https://en.wikipedia.org/wiki/Kross_(software) - in my understanding it never took off even inside the community itself.
During this chicken and egg -problem time, javascript-based implementions are definately way to go. Maybe in the future we seee pure and clean, full Python support natively in browsers.
From here:
The function
ord()
gets the int value of the char. And in case you want to convert back after playing with the number, functionchr()
does the trick.
>>> ord('a')
97
>>> chr(97)
'a'
>>> chr(ord('a') + 3)
'd'
>>>
In Python 2, there was also the unichr
function, returning the Unicode character whose ordinal is the unichr
argument:
>>> unichr(97)
u'a'
>>> unichr(1234)
u'\u04d2'
In Python 3 you can use chr
instead of unichr
.
Take selected value:
worksheet name = ordls
form control list box name = DEPDB1
selectvalue = ordls.Shapes("DEPDB1").ControlFormat.List(ordls.Shapes("DEPDB1").ControlFormat.Value)
This should work...
var displayDate = new Date().toLocaleDateString();
alert(displayDate);
But I suspect you are trying it on something else, for example:
var displayDate = Date.now.toLocaleDateString(); // No!
alert(displayDate);
You can extend your Dictionary
to only provide stringFromHttpParameter
if both key and value conform to CustomStringConvertable
like this
extension Dictionary where Key : CustomStringConvertible, Value : CustomStringConvertible {
func stringFromHttpParameters() -> String {
var parametersString = ""
for (key, value) in self {
parametersString += key.description + "=" + value.description + "&"
}
return parametersString
}
}
this is much cleaner and prevents accidental calls to stringFromHttpParameters
on dictionaries that have no business calling that method
http://www.petefreitag.com/item/146.cfm
Open up windows explorer
Tools -> Folder Options.
File Types Tab
Select the Folder file type
Click Advanced
Click New
For the Action type what ever you want the context menu to display, I used Command Prompt.
For the Application used to perform the action use c:\windows\system32\cmd.exe (note on win2k you will want to specify the winnt directory instead of the windows directory)
As explained here, if you clone with SSH url, you don't need to enter username / password each time you push / pull. Check above answer by @manojlds
But if you want to clone with HTTPS and want to avoid entering username / password each time, you can store credentials into cache with below command:
git config --global credential.helper 'cache --timeout 3600'
where 3600 (seconds) means 1 hour, you may change it as per your requirement.
If a class is declared as static then the variables and methods need to be declared as static.
A class can be declared static, indicating that it contains only static members. It is not possible to create instances of a static class using the new keyword. Static classes are loaded automatically by the .NET Framework common language runtime (CLR) when the program or namespace containing the class is loaded.
Use a static class to contain methods that are not associated with a particular object. For example, it is a common requirement to create a set of methods that do not act on instance data and are not associated to a specific object in your code. You could use a static class to hold those methods.
->The main features of a static class are:
Example
static class CollegeRegistration
{
//All static member variables
static int nCollegeId; //College Id will be same for all the students studying
static string sCollegeName; //Name will be same
static string sColegeAddress; //Address of the college will also same
//Member functions
public static int GetCollegeId()
{
nCollegeId = 100;
return (nCollegeID);
}
//similarly implementation of others also.
} //class end
public class student
{
int nRollNo;
string sName;
public GetRollNo()
{
nRollNo += 1;
return (nRollNo);
}
//similarly ....
public static void Main()
{
//Not required.
//CollegeRegistration objCollReg= new CollegeRegistration();
//<ClassName>.<MethodName>
int cid= CollegeRegistration.GetCollegeId();
string sname= CollegeRegistration.GetCollegeName();
} //Main end
}
constructor(
public sanitizer: DomSanitizer, ) {
}
I had been struggling for 4 hours. the problem was in img tag. When you use square bracket to 'src' ex: [src]. you can not use this angular expression {{}}. you just give directly from an object example below. if you give angular expression {{}}. you will get interpolation error.
first i used ngFor to iterate the countries
*ngFor="let country of countries"
second you put this in the img tag. this is it.
<img [src]="sanitizer.bypassSecurityTrustResourceUrl(country.flag)"
height="20" width="20" alt=""/>
To resolving this problem.I just create a new folder and put some new files.Then use these commond.
* git add .
* git commit
* git remote add master `your address`
then it tells me to login in. To input your username and password. after that
git pull
git push origin master
finished you have pushed your code to your github
For different types of arguments, there is 3-dots :
public void foo(Object... x) {
String myVar1 = x.length > 0 ? (String)x[0] : "Hello";
int myVar2 = x.length > 1 ? Integer.parseInt((String) x[1]) : 888;
}
Then call it
foo("Hii");
foo("Hii", 146);
for security, use like this:
if (!(x[0] instanceof String)) { throw new IllegalArgumentException("..."); }
The main drawback of this approach is that if optional parameters are of different types you lose static type checking. Please, see more variations .
First install Git onto your desktop, then Add the encircled extension in vscode, as seen in the picture.
That helped me fix the same issue you have.
@Entity
@NamedQuery(name = "Customer.listUniqueNames",
query = "SELECT DISTINCT c.name FROM Customer c")
public class Customer {
...
private String name;
public static List<String> listUniqueNames() {
return = getEntityManager().createNamedQuery(
"Customer.listUniqueNames", String.class)
.getResultList();
}
}
In javascript, navigation type 2
means browser's back or forward button clicked and the browser is actually taking content from cache.
if(performance.navigation.type == 2)
{
//Do your code here
}
PATH=%PATH%;$(ProjectDir)\some-framework\lib
or prepending to the path PATH=C:\some-framework\lib;%PATH%
just remove the breaks between li's in your html code... make the li's in one line only..
Another thing to consider is the references cannot have the same name. For example, if you have jQuery UI in the libraries
directory, and bundle its JavaScript file like so:
bundles.Add(new ScriptBundle("~/libraries").Include("~/libraries/jquery-ui/jqyery-ui.js"));
and then try to bundle its CSS files like so:
bundles.Add(new StyleBundle("~/libraries").Include("~/libraries/jquery-ui/jqyery-ui.css"));
...
it will fail. They have to have unique names. So do something like ScriptBundle("~/libraries/js")...
and ScriptBundle("~/libraries/css")...
or whatever.
Ping can be used with a variety of protocols. The protocol value can be appletalk, clns, ip (the default), novell, apollo, vines, decnet, or xns. Some protocols require another Cisco router at the remote end to answer ping packets. ... (Cisco field manual: router configuration, By Dave Hucaby, Steve McQuerry. Page 64)
... For IP. ping uses ICMP type 8 requests and ICMP type 0 replies. The traceroute (by using UDP) command can be used to discover the routers along the path that packets are taking to a destination. ... (Page 63)
Actually... filter_var($url, FILTER_VALIDATE_URL); doesn't work very well. When you type in a real url, it works but, it only checks for http:// so if you type something like "http://weirtgcyaurbatc", it will still say it's real.
You can select every column from that sub-query by aliasing it and adding the alias before the *
:
SELECT t.*, a+b AS total_sum
FROM
(
SELECT SUM(column1) AS a, SUM(column2) AS b
FROM table
) t
$(window).on("touchstart", function(ev) {
var e = ev.originalEvent;
console.log(e.touches);
});
I know it been asked a long time ago, but I thought a concrete example might help.
In SpringBoot 2.1, I found another solution. Extend standard factory class method getTomcatWebServer. And then return it as a bean from anywhere.
public class CustomTomcatServletWebServerFactory extends TomcatServletWebServerFactory {
@Override
protected TomcatWebServer getTomcatWebServer(Tomcat tomcat) {
System.setProperty("catalina.useNaming", "true");
tomcat.enableNaming();
return new TomcatWebServer(tomcat, getPort() >= 0);
}
}
@Component
public class TomcatConfiguration {
@Bean
public ConfigurableServletWebServerFactory webServerFactory() {
TomcatServletWebServerFactory factory = new CustomTomcatServletWebServerFactory();
return factory;
}
Loading resources from context.xml doesn't work though. Will try to find out.
Here is how I have done it in Kotlin.
Inject room db in the activity using DI (Koin).
private val appDB: AppDB by inject()
Then you can simply call clearAllTables()
private fun clearRoomDB() {
GlobalScope.launch {
appDB.clearAllTables()
preferences.put(PreferenceConstants.IS_UPLOADCATEGORIES_SAVED_TO_DB, false)
preferences.put(PreferenceConstants.IS_MEMBERHANDBOOK_SAVED_TO_DB, false)
}
}
Make sure, that all of your class methods (updateVelocity
, updatePosition
, ...) take at least one positional argument, which is canonically named self
and refers to the current instance of the class.
When you call particle.updateVelocity()
, the called method implicitly gets an argument: the instance, here particle
as first parameter.
On CentOS 5.5, the easiest way I've found to set the default from domain is to modify the hosts file. If your hosts file contains your WAN/public IP address, simply modify the first hostname listed for it. For example, your hosts file may look like:
...
11.22.33.44 localhost default-domain whatever-else.com
...
To make it send from whatever-else.com, simply modify it so that whatever-else.com is listed first, for example:
...
11.22.33.44 whatever-else.com localhost default-domain
...
I can't speak for any other distro (or even version of CentOS) but in my particular case, the above works perfectly.
Try this:
top.document.getElementById('AppFrame').setAttribute("src",fullPath);
Something like:
>>> l = ['element1\t0238.94', 'element2\t2.3904', 'element3\t0139847']
>>> [i.split('\t', 1)[0] for i in l]
['element1', 'element2', 'element3']
I dont know why you havent marked on of these gr8 answers... here is another option which would enable you and anyone else visiting to control transition speed and pause time
JAVASCRIPT
$(function () {
/* SET PARAMETERS */
var change_img_time = 5000;
var transition_speed = 100;
var simple_slideshow = $("#exampleSlider"),
listItems = simple_slideshow.children('li'),
listLen = listItems.length,
i = 0,
changeList = function () {
listItems.eq(i).fadeOut(transition_speed, function () {
i += 1;
if (i === listLen) {
i = 0;
}
listItems.eq(i).fadeIn(transition_speed);
});
};
listItems.not(':first').hide();
setInterval(changeList, change_img_time);
});
.
HTML
<ul id="exampleSlider">
<li><img src="http://placehold.it/500x250" alt="" /></li>
<li><img src="http://placehold.it/500x250" alt="" /></li>
<li><img src="http://placehold.it/500x250" alt="" /></li>
<li><img src="http://placehold.it/500x250" alt="" /></li>
</ul>
.
If your keeping this simple its easy to keep it resposive
best to visit the: DEMO
.
If you want something with special transition FX (Still responsive) - check this out
DEMO WITH SPECIAL FX
Basic validation can be performed by choosing the type attribute of input elements. For example:
<input type="email" />
<input type="URL" />
<input type="number" />
using pattern attribute like:
<input type="text" pattern="[1-4]{5}" />
required attribute
<input type="text" required />
maxlength:
<input type="text" maxlength="20" />
min & max:
<input type="number" min="1" max="4" />
The best way around this is (and many other situations) in my experience, is to use cntlm which is a local no-authentication proxy which points to a remote authentication proxy. You can then just set WinHTTP to point to your local CNTLM (usually localhost:3128), and you can set CNTLM itself to point to the remote authentication proxy. CNTLM has a "magic NTLM dialect detection" option which generates password hashes to be put into the CNTLM configuration files.
Recursion is when you have an operation that uses itself. It probably will have a stopping point, otherwise it would go on forever.
Let's say you want to look up a word in the dictionary. You have an operation called "look-up" at your disposal.
Your friend says "I could really spoon up some pudding right now!" You don't know what he means, so you look up "spoon" in the dictionary, and it reads something like this:
Spoon: noun - a utensil with a round scoop at the end. Spoon: verb - to use a spoon on something Spoon: verb - to cuddle closely from behind
Now, being that you're really not good with English, this points you in the right direction, but you need more info. So you select "utensil" and "cuddle" to look up for some more information.
Cuddle: verb - to snuggle Utensil: noun - a tool, often an eating utensil
Hey! You know what snuggling is, and it has nothing to do with pudding. You also know that pudding is something you eat, so it makes sense now. Your friend must want to eat pudding with a spoon.
Okay, okay, this was a very lame example, but it illustrates (perhaps poorly) the two main parts of recursion. 1) It uses itself. In this example, you haven't really looked up a word meaningfully until you understand it, and that might mean looking up more words. This brings us to point two, 2) It stops somewhere. It has to have some kind of base-case. Otherwise, you'd just end up looking up every word in the dictionary, which probably isn't too useful. Our base-case was that you got enough information to make a connection between what you previously did and did not understand.
The traditional example that's given is factorial, where 5 factorial is 1*2*3*4*5 (which is 120). The base case would be 0 (or 1, depending). So, for any whole number n, you do the following
is n equal to 0? return 1 otherwise, return n * (factorial of n-1)
let's do this with the example of 4 (which we know ahead of time is 1*2*3*4 = 24).
factorial of 4 ... is it 0? no, so it must be 4 * factorial of 3 but what's factorial of 3? it's 3 * factorial of 2 factorial of 2 is 2 * factorial of 1 factorial of 1 is 1 * factorial of 0 and we KNOW factorial of 0! :-D it's 1, that's the definition factorial of 1 is 1 * factorial of 0, which was 1... so 1*1 = 1 factorial of 2 is 2 * factorial of 1, which was 1... so 2*1 = 2 factorial of 3 is 3 * factorial of 2, which was 2... so 3*2 = 6 factorial of 4 (finally!!) is 4 * factorial of 3, which was 6... 4*6 is 24
Factorial is a simple case of "base case, and uses itself".
Now, notice we were still working on factorial of 4 the entire way down... If we wanted factorial of 100, we'd have to go all the way down to 0... which might have a lot of overhead to it. In the same manner, if we find an obscure word to look up in the dictionary, it might take looking up other words and scanning for context clues until we find a connection we're familiar with. Recursive methods can take a long time to work their way through. However, when they're used correctly, and understood, they can make complicated work surprisingly simple.
$date = mysql_real_escape_string($_POST['intake_date']);
1. If your MySQL column is DATE
type:
$date = date('Y-m-d', strtotime(str_replace('-', '/', $date)));
2. If your MySQL column is DATETIME
type:
$date = date('Y-m-d H:i:s', strtotime(str_replace('-', '/', $date)));
You haven't got to work strototime()
, because it will not work with dash -
separators, it will try to do a subtraction.
Update, the way your date is formatted you can't use strtotime()
, use this code instead:
$date = '02/07/2009 00:07:00';
$date = preg_replace('#(\d{2})/(\d{2})/(\d{4})\s(.*)#', '$3-$2-$1 $4', $date);
echo $date;
Output:
2009-07-02 00:07:00
You'll get converting errors with:
cmd.CommandText = "SELECT COUNT(*) FROM table_name";
Int32 count = (Int32) cmd.ExecuteScalar();
Use instead:
string stm = "SELECT COUNT(*) FROM table_name WHERE id="+id+";";
MySqlCommand cmd = new MySqlCommand(stm, conn);
Int32 count = Convert.ToInt32(cmd.ExecuteScalar());
if(count > 0){
found = true;
} else {
found = false;
}
The icon file is added to your project as a content file.
for routes add a web.config
<configuration>
<system.webServer>
<rewrite>
<rules>
<rule name="React Routes" stopProcessing="true">
<match url=".*" />
<conditions logicalGrouping="MatchAll">
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
<add input="{REQUEST_URI}" pattern="^/(api)" negate="true" />
</conditions>
<action type="Rewrite" url="/" />
</rule>
</rules>
</rewrite>
</system.webServer>
</configuration>
That approach will be good if the date-time in question is in UTC, or represents local time in an area that has never observed daylight saving time. The DateTime difference routines do not take into account Daylight Saving Time, and consequently will regard midnight June 1 as being a multiple of 24 hours after midnight January 1. I'm unaware of anything in Windows that reports historical daylight-saving rules for the current locale, so I don't think there's any good way to correctly handle any time prior to the most recent daylight-saving rule change.
In Macbook, step by step:
cd ~/
touch .bash_profile
You created your ".bash_profile" file but if you would like to edit it, you should write it;
open -e .bash_profile
After you can save from top-left corner of screen: File > Save
@canerkaseler
i have this problem , a few time problem is recycleView put in ScrollView object
After checking implementation, the reason appears to be the following. If RecyclerView gets put into a ScrollView, then during measure step its height is unspecified (because ScrollView allows any height) and, as a result, gets equal to minimum height (as per implementation) which is apparently zero.
You have couple of options for fixing this:
(Can be followed for android.support.v4.widget.NestedScrollView
as well)
You can also try this:
And also run code snippet!
CSS and then HTML:
#select-category {
font-size: 100%;
padding: 10px;
padding-right: 180px;
margin-left: 30px;
border-radius: 1000000px;
border: 1px solid #707070;
outline: none;
-webkit-appearance: none;
-moz-appearance: none;
background: transparent;
background-image: url("data:image/svg+xml;utf8,<svg fill='black' height='34' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/><path d='M0 0h24v24H0z' fill='none'/></svg>");
background-repeat: no-repeat;
background-position-x: 100%;
background-position-y: 5px;
margin-right: 2rem;
}
_x000D_
<select id="select-category">
<option>Category</option>
<option>Category 2</option>
<option>Category 3</option>
<option>Category 4</option>
<option>Category 5</option>
<option>Category 6</option>
<option>Category 7</option>
<option>Category 8</option>
<option>Category 9</option>
<option>Category 10</option>
<option>Category 11</option>
<option>Category 12</option>
</select>
_x000D_
@crobar, you are right that there is a dearth of multi-file examples, so I decided to share the following in the hopes that it helps others:
::::::::::::::
main.cpp
::::::::::::::
#include <iostream>
#include "UseSomething.h"
#include "Something.h"
int main()
{
UseSomething y;
std::cout << y.getValue() << '\n';
}
::::::::::::::
Something.h
::::::::::::::
#ifndef SOMETHING_H_
#define SOMETHING_H_
class Something
{
private:
static int s_value;
public:
static int getValue() { return s_value; } // static member function
};
#endif
::::::::::::::
Something.cpp
::::::::::::::
#include "Something.h"
int Something::s_value = 1; // initializer
::::::::::::::
UseSomething.h
::::::::::::::
#ifndef USESOMETHING_H_
#define USESOMETHING_H_
class UseSomething
{
public:
int getValue();
};
#endif
::::::::::::::
UseSomething.cpp
::::::::::::::
#include "UseSomething.h"
#include "Something.h"
int UseSomething::getValue()
{
return(Something::getValue());
}
I think the best easy way in this case is to use parseToStringDate which is part of GDK (Groovy JDK enhancements):
Parse a String matching the pattern EEE MMM dd HH:mm:ss zzz yyyy containing US-locale-constants only (e.g. Sat for Saturdays). Such a string is generated by the toString method of Date
Example:
println(Date.parseToStringDate("Tue Aug 10 16:02:43 PST 2010").format('MM-dd-yyyy'))
To call a function inside a same controller in any laravel version follow as bellow
$role = $this->sendRequest('parameter');
// sendRequest is a public function
To extend the given answer with few useful tricks:
var markers = //some array;
var bounds = new google.maps.LatLngBounds();
for(i=0;i<markers.length;i++) {
bounds.extend(markers[i].getPosition());
}
//center the map to a specific spot (city)
map.setCenter(center);
//center the map to the geometric center of all markers
map.setCenter(bounds.getCenter());
map.fitBounds(bounds);
//remove one zoom level to ensure no marker is on the edge.
map.setZoom(map.getZoom()-1);
// set a minimum zoom
// if you got only 1 marker or all markers are on the same address map will be zoomed too much.
if(map.getZoom()> 15){
map.setZoom(15);
}
//Alternatively this code can be used to set the zoom for just 1 marker and to skip redrawing.
//Note that this will not cover the case if you have 2 markers on the same address.
if(count(markers) == 1){
map.setMaxZoom(15);
map.fitBounds(bounds);
map.setMaxZoom(Null)
}
UPDATE:
Further research in the topic show that fitBounds() is a asynchronic
and it is best to make Zoom manipulation with a listener defined before calling Fit Bounds.
Thanks @Tim, @xr280xr, more examples on the topic : SO:setzoom-after-fitbounds
google.maps.event.addListenerOnce(map, 'bounds_changed', function(event) {
this.setZoom(map.getZoom()-1);
if (this.getZoom() > 15) {
this.setZoom(15);
}
});
map.fitBounds(bounds);
If you want to fast forward from B to A, then you must make sure that git log B..A shows you nothing, i.e. A has nothing that B doesn't have. But even if B..A has something, you might still be able to merge without conflicts, so the above shows two things: that there will be a fast-forward, and thus you won't get a conflict.
Open your project in XCode
you will see the sidebar now focus on the attached image.
Search your specific SDK or any dublicate file where you facing an issue.
You will see that you have added any file twice.
just remove that file and your issue will be resolved.
Note: you have to remove the file from that place where you add it wrongly.
Note: Just remove FBSDKCoreKit from Frameworks
Good Luck
The better solutions, when possible are:
The SNAPSHOT transaction isolation level was created because MS was losing sales to Oracle. Oracle uses undo/redo logs to avoid this problem. Postgres uses MVCC. In the future MS's Heckaton will use MVCC, but that's years away from being production ready.
Sadly @Andrés Montoya answer has a flaw which is related to how he compares the obj. I found a solution here which should solve this:
const now = Date.now().valueOf() / 1000
if (typeof decoded.exp !== 'undefined' && decoded.exp < now) {
throw new Error(`token expired: ${JSON.stringify(decoded)}`)
}
if (typeof decoded.nbf !== 'undefined' && decoded.nbf > now) {
throw new Error(`token expired: ${JSON.stringify(decoded)}`)
}
Thanks to thejohnfreeman!
Create an index.scss and there you can import all file structure you have. I will paste you my index from an enterprise project, maybe it will help other how to structure files in css:
@import 'base/_reset';
@import 'helpers/_variables';
@import 'helpers/_mixins';
@import 'helpers/_functions';
@import 'helpers/_helpers';
@import 'helpers/_placeholders';
@import 'base/_typography';
@import 'pages/_versions';
@import 'pages/_recording';
@import 'pages/_lists';
@import 'pages/_global';
@import 'forms/_buttons';
@import 'forms/_inputs';
@import 'forms/_validators';
@import 'forms/_fieldsets';
@import 'sections/_header';
@import 'sections/_navigation';
@import 'sections/_sidebar-a';
@import 'sections/_sidebar-b';
@import 'sections/_footer';
@import 'vendors/_ui-grid';
@import 'components/_modals';
@import 'components/_tooltip';
@import 'components/_tables';
@import 'components/_datepickers';
And you can watch them with gulp/grunt/webpack etc, like:
gulpfile.js
// SASS Task
var gulp = require('gulp');
var sass = require('gulp-sass');
//var concat = require('gulp-concat');
var uglifycss = require('gulp-uglifycss');
var sourcemaps = require('gulp-sourcemaps');
gulp.task('styles', function(){
return gulp
.src('sass/**/*.scss')
.pipe(sourcemaps.init())
.pipe(sass().on('error', sass.logError))
.pipe(concat('styles.css'))
.pipe(uglifycss({
"maxLineLen": 80,
"uglyComments": true
}))
.pipe(sourcemaps.write('.'))
.pipe(gulp.dest('./build/css/'));
});
gulp.task('watch', function () {
gulp.watch('sass/**/*.scss', ['styles']);
});
gulp.task('default', ['watch']);
here's the function i use myself, the api is just like json_encode, except it has a 3rd argument exclude_flags
in case you want to exclude some of the default flags (like JSON_UNESCAPED_SLASHES)
function json_encode_pretty($data, int $extra_flags = 0, int $exclude_flags = 0): string
{
// prettiest flags for: 7.3.9
$flags = JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | (defined("JSON_UNESCAPED_LINE_TERMINATORS") ? JSON_UNESCAPED_LINE_TERMINATORS : 0) | JSON_PRESERVE_ZERO_FRACTION | (defined("JSON_THROW_ON_ERROR") ? JSON_THROW_ON_ERROR : 0);
$flags = ($flags | $extra_flags) & ~ $exclude_flags;
return (json_encode($data, $flags));
}
Swift: iOS
if we have string, convert it to NSDate,
var dataString = profileValue["dob"] as String
var dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "MM-dd-yyyy"
// convert string into date
let dateValue:NSDate? = dateFormatter.dateFromString(dataString)
if you have and date picker parse date like this
// to avoid any nil value
if let isDate = dateValue {
self.datePicker.date = isDate
}
use the nextSibling
and previousSibling
properties:
<div id="foo1"></div>
<div id="foo2"></div>
<div id="foo3"></div>
document.getElementById('foo2').nextSibling; // #foo3
document.getElementById('foo2').previousSibling; // #foo1
However in some browsers (I forget which) you also need to check for whitespace and comment nodes:
var div = document.getElementById('foo2');
var nextSibling = div.nextSibling;
while(nextSibling && nextSibling.nodeType != 1) {
nextSibling = nextSibling.nextSibling
}
Libraries like jQuery handle all these cross-browser checks for you out of the box.
>>> myDict
{'lastName': ['Stone', 'Lee'], 'age': ['12'], 'firstName': ['Alan', 'Mary-Ann'],
'address': ['34 Main Street, 212 First Avenue']}
>>> Set = set()
>>> not ['' for Key, Values in myDict.items() for Value in Values if 'Mary' in Value and Set.add(Key)] and list(Set)
['firstName']
From your stack trace, EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)
occurred because dispatch_group_t
was released while it was still locking (waiting for dispatch_group_leave
).
According to what you found, this was what happened :
dispatch_group_t group
was created. group
's retain count = 1.-[self webservice:onCompletion:]
captured the group
. group
's retain count = 2.dispatch_async(...., ^{ dispatch_group_wait(group, ...) ... });
captured the group
again. group
's retain count = 3.group
was released. group
's retain count = 2.dispatch_group_leave
was never called.dispatch_group_wait
was timeout. The dispatch_async
block was completed. group
was released. group
's retain count = 1.-[self webservice:onCompletion:]
was called again, the old onCompletion
block was replaced with the new one. So, the old group
was released. group
's retain count = 0. group
was deallocated. That resulted to EXC_BAD_INSTRUCTION
.To fix this, I suggest you should find out why -[self webservice:onCompletion:]
didn't call onCompletion
block, and fix it. Then make sure the next call to the method will happen after the previous call did finish.
In case you allow the method to be called many times whether the previous calls did finish or not, you might find someone to hold group
for you :
DISPATCH_TIME_FOREVER
or a reasonable amount of time that all -[self webservice:onCompletion]
should call their onCompletion
blocks by the time. So that the block in dispatch_async(...)
will hold it for you.group
into a collection, such as NSMutableArray
.I think it is the best approach to create a dedicate class for this action. When you want to make calls to webservice, you then create an object of the class, call the method on it with the completion block passing to it that will release the object. In the class, there is an ivar of dispatch_group_t
or dispatch_semaphore_t
.
I think you declared the Equals
method like this:
public override bool Equals(BOX obj)
Since the object.Equals
method takes an object, there is no method to override with this signature. You have to override it like this:
public override bool Equals(object obj)
If you want type-safe Equals,
you can implement IEquatable<BOX>
.
Yes, This is possible. Right click on the table and Click on Edit Top 200 Rows
as show in image below
Then click anywhere inside the result grid, to enable SQL
Icon "Show Sql Pane". This will open sql editor for the table you opted to edit, here you can write your own sql query and then you can directly edit the result set of the query.
From main/php.h
of PHP version 7.1.1 and version 5.6.30:
#ifdef PHP_WIN32
# include "tsrm_win32.h"
# include "win95nt.h"
# ifdef PHP_EXPORTS
# define PHPAPI __declspec(dllexport)
# else
# define PHPAPI __declspec(dllimport)
# endif
# define PHP_DIR_SEPARATOR '\\'
# define PHP_EOL "\r\n"
#else
# if defined(__GNUC__) && __GNUC__ >= 4
# define PHPAPI __attribute__ ((visibility("default")))
# else
# define PHPAPI
# endif
# define THREAD_LS
# define PHP_DIR_SEPARATOR '/'
# define PHP_EOL "\n"
#endif
As you can see PHP_EOL
can be "\r\n"
(on Windows servers) or "\n"
(on anything else). On PHP versions prior 5.4.0RC8, there were a third value possible for PHP_EOL
: "\r"
(on MacOSX servers). It was wrong and has been fixed on 2012-03-01 with bug 61193.
As others already told you, you can use PHP_EOL
in any kind of output (where any of these values are valid - like: HTML, XML, logs...) where you want unified newlines. Keep in mind that it's the server that it's determining the value, not the client. Your Windows visitors will get the value from your Unix server which is inconvenient for them sometimes.
I just wanted to show the possibles values of PHP_EOL
backed by the PHP sources since it hasn't been shown here yet...
You did not specify any time stamp or interval for how long you would require such output, so I considered it to be an infinite loop. You can change it accordingly as per your need.
while true
do
echo -e "`date`|`ping -n -c 1 <IP_TO_PING>|grep 'bytes from'`"
sleep 2
done
Found here:
/* Standard C++ includes */
#include <stdlib.h>
#include <iostream>
/*
Include directly the different
headers from cppconn/ and mysql_driver.h + mysql_util.h
(and mysql_connection.h). This will reduce your build time!
*/
#include "mysql_connection.h"
#include <cppconn/driver.h>
#include <cppconn/exception.h>
#include <cppconn/resultset.h>
#include <cppconn/statement.h>
using namespace std;
int main(void)
{
cout << endl;
cout << "Running 'SELECT 'Hello World!' »
AS _message'..." << endl;
try {
sql::Driver *driver;
sql::Connection *con;
sql::Statement *stmt;
sql::ResultSet *res;
/* Create a connection */
driver = get_driver_instance();
con = driver->connect("tcp://127.0.0.1:3306", "root", "root");
/* Connect to the MySQL test database */
con->setSchema("test");
stmt = con->createStatement();
res = stmt->executeQuery("SELECT 'Hello World!' AS _message"); // replace with your statement
while (res->next()) {
cout << "\t... MySQL replies: ";
/* Access column data by alias or column name */
cout << res->getString("_message") << endl;
cout << "\t... MySQL says it again: ";
/* Access column fata by numeric offset, 1 is the first column */
cout << res->getString(1) << endl;
}
delete res;
delete stmt;
delete con;
} catch (sql::SQLException &e) {
cout << "# ERR: SQLException in " << __FILE__;
cout << "(" << __FUNCTION__ << ") on line " »
<< __LINE__ << endl;
cout << "# ERR: " << e.what();
cout << " (MySQL error code: " << e.getErrorCode();
cout << ", SQLState: " << e.getSQLState() << " )" << endl;
}
cout << endl;
return EXIT_SUCCESS;
}
let unix_timestamp = 1549312452_x000D_
// Create a new JavaScript Date object based on the timestamp_x000D_
// multiplied by 1000 so that the argument is in milliseconds, not seconds._x000D_
var date = new Date(unix_timestamp * 1000);_x000D_
// Hours part from the timestamp_x000D_
var hours = date.getHours();_x000D_
// Minutes part from the timestamp_x000D_
var minutes = "0" + date.getMinutes();_x000D_
// Seconds part from the timestamp_x000D_
var seconds = "0" + date.getSeconds();_x000D_
_x000D_
// Will display time in 10:30:23 format_x000D_
var formattedTime = hours + ':' + minutes.substr(-2) + ':' + seconds.substr(-2);_x000D_
_x000D_
console.log(formattedTime);
_x000D_
For more information regarding the Date object, please refer to MDN or the ECMAScript 5 specification.
If you are using windows, remove comment on these lines and set them as:
Line 227 : ServerName 127.0.0.1:80
Line 235 : AllowOverride all
Line 236 : Require all granted
Worked for me!
Another legitimate use of document.write
comes from the HTML5 Boilerplate index.html example.
<!-- Grab Google CDN's jQuery, with a protocol relative URL; fall back to local if offline -->
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.6.3/jquery.min.js"></script>
<script>window.jQuery || document.write('<script src="js/libs/jquery-1.6.3.min.js"><\/script>')</script>
I've also seen the same technique for using the json2.js JSON parse/stringify polyfill (needed by IE7 and below).
<script>window.JSON || document.write('<script src="json2.js"><\/script>')</script>
Well, what is ID
here? In particular, is it a local variable? There are some scope / capture issues, which mean that it may be desirable to use a second variable copy, just for the query:
var id = ID;
BlogPost post = (from p in dc.BlogPosts
where p.BlogPostID == id
select p).Single();
Also; if this is LINQ-to-SQL, then in the current version you get a slightly better behaviour if you use the form:
var id = ID;
BlogPost post = dc.BlogPosts.Single(p => p.BlogPostID == id);
From application perspective, if one needs only to avoid duplicates then HashSet
is what you are looking for since it's Lookup, Insert and Remove complexities are O(1) - constant. What this means it does not matter how many elements HashSet
has it will take same amount of time to check if there's such element or not, plus since you are inserting elements at O(1) too it makes it perfect for this sort of thing.
sorry to dig this up, I just want to share my idea, the easy way for me is to rename composer.phar to composer.bat and put it into my PATH.
freopen("/my/newstdin", "r", stdin);
freopen("/my/newstdout", "w", stdout);
freopen("/my/newstderr", "w", stderr);
... do your stuff
freopen("/dev/stdin", "r", stdin);
...
...
This peaks the needle on my round-peg-square-hole-o-meter, what are you trying to accomplish?
Edit:
Remember that stdin, stdout and stderr are file descriptors 0, 1 and 2 for every newly created process. freopen() should keep the same fd's, just assign new streams to them.
So, a good way to ensure that this is actually doing what you want it to do would be:
printf("Stdout is descriptor %d\n", fileno(stdout));
freopen("/tmp/newstdout", "w", stdout);
printf("Stdout is now /tmp/newstdout and hopefully still fd %d\n",
fileno(stdout));
freopen("/dev/stdout", "w", stdout);
printf("Now we put it back, hopefully its still fd %d\n",
fileno(stdout));
I believe this is the expected behavior of freopen(), as you can see, you're still only using three file descriptors (and associated streams).
This would override any shell redirection, as there would be nothing for the shell to redirect. However, its probably going to break pipes. You might want to be sure to set up a handler for SIGPIPE, in case your program finds itself on the blocking end of a pipe (not FIFO, pipe).
So, ./your_program --stdout /tmp/stdout.txt --stderr /tmp/stderr.txt should be easily accomplished with freopen() and keeping the same actual file descriptors. What I don't understand is why you'd need to put them back once changing them? Surely, if someone passed either option, they would want it to persist until the program terminated?
The accepted answer duplicates the first row if the frame only contains a single row. If that's a concern
df[0::len(df)-1 if len(df) > 1 else 1]
works even for single row-dataframes.
Example: For the following dataframe this will not create a duplicate:
df = pd.DataFrame({'a': [1], 'b':['a']})
df2 = df[0::len(df)-1 if len(df) > 1 else 1]
print df2
a b
0 1 a
whereas this does:
df3 = df.iloc[[0, -1]]
print df3
a b
0 1 a
0 1 a
because the single row is the first AND last row at the same time.
You do not have any elements in the list so can't access the first element.
Here's what worked for me, here I'm attaching a file to my EmailController under test. Also take a look at the postman screenshot on how I'm posting the data.
@WebAppConfiguration
@RunWith(SpringRunner.class)
@SpringBootTest(
classes = EmailControllerBootApplication.class
)
public class SendEmailTest {
@Autowired
private WebApplicationContext webApplicationContext;
@Test
public void testSend() throws Exception{
String jsonStr = "{\"to\": [\"[email protected]\"],\"subject\": "
+ "\"CDM - Spring Boot email service with attachment\","
+ "\"body\": \"Email body will contain test results, with screenshot\"}";
Resource fileResource = new ClassPathResource(
"screen-shots/HomePage-attachment.png");
assertNotNull(fileResource);
MockMultipartFile firstFile = new MockMultipartFile(
"attachments",fileResource.getFilename(),
MediaType.MULTIPART_FORM_DATA_VALUE,
fileResource.getInputStream());
assertNotNull(firstFile);
MockMvc mockMvc = MockMvcBuilders.
webAppContextSetup(webApplicationContext).build();
mockMvc.perform(MockMvcRequestBuilders
.multipart("/api/v1/email/send")
.file(firstFile)
.param("data", jsonStr))
.andExpect(status().is(200));
}
}
Here is the code that will return all video ids under your channel
<?php
$baseUrl = 'https://www.googleapis.com/youtube/v3/';
// https://developers.google.com/youtube/v3/getting-started
$apiKey = 'API_KEY';
// If you don't know the channel ID see below
$channelId = 'CHANNEL_ID';
$params = [
'id'=> $channelId,
'part'=> 'contentDetails',
'key'=> $apiKey
];
$url = $baseUrl . 'channels?' . http_build_query($params);
$json = json_decode(file_get_contents($url), true);
$playlist = $json['items'][0]['contentDetails']['relatedPlaylists']['uploads'];
$params = [
'part'=> 'snippet',
'playlistId' => $playlist,
'maxResults'=> '50',
'key'=> $apiKey
];
$url = $baseUrl . 'playlistItems?' . http_build_query($params);
$json = json_decode(file_get_contents($url), true);
$videos = [];
foreach($json['items'] as $video)
$videos[] = $video['snippet']['resourceId']['videoId'];
while(isset($json['nextPageToken'])){
$nextUrl = $url . '&pageToken=' . $json['nextPageToken'];
$json = json_decode(file_get_contents($nextUrl), true);
foreach($json['items'] as $video)
$videos[] = $video['snippet']['resourceId']['videoId'];
}
print_r($videos);
Note: You can get channel id at https://www.youtube.com/account_advanced after logged in.
echo -e "open <ftp.hostname>\nuser <username> <password>\nbinary\nmkdir New_Folder\nquit"|ftp -nv
[
is the same as the test
builtin, and works like the test
binary (man test)
[
in all the other sh-based shells in many UNIX-like environments&&
and ||
operators must be in separate brackets. !
outside the first bracket to use the shell's facility for inverting command return values.==
and !=
are literal string comparisons[[
is a bash
==
and !=
apply bash pattern matching rules, see "Pattern Matching" in man bash
=~
regex match operator!
, &&
, and ||
logical operators within the brackets to combine subexpressionsAside from that, they're pretty similar -- most individual tests work identically between them, things only get interesting when you need to combine different tests with logical AND/OR/NOT operations.
So, I had the same issue and sadly just adding to the rules didn't work. I found out that accept: and extension: are not part of JQuery validate.js by default and it requires an additional-Methods.js plugin to make it work.
So for anyone else who followed this thread and it still didn't work, you can try adding additional-Methods.js to your tag in addition to the answer above and it should work.
Each tablespace has one or more datafiles that it uses to store data.
The max size of a datafile depends on the block size of the database. I believe that, by default, that leaves with you with a max of 32gb per datafile.
To find out if the actual limit is 32gb, run the following:
select value from v$parameter where name = 'db_block_size';
Compare the result you get with the first column below, and that will indicate what your max datafile size is.
I have Oracle Personal Edition 11g r2 and in a default install it had an 8,192 block size (32gb per data file).
Block Sz Max Datafile Sz (Gb) Max DB Sz (Tb)
-------- -------------------- --------------
2,048 8,192 524,264
4,096 16,384 1,048,528
8,192 32,768 2,097,056
16,384 65,536 4,194,112
32,768 131,072 8,388,224
You can run this query to find what datafiles you have, what tablespaces they are associated with, and what you've currrently set the max file size to (which cannot exceed the aforementioned 32gb):
select bytes/1024/1024 as mb_size,
maxbytes/1024/1024 as maxsize_set,
x.*
from dba_data_files x
MAXSIZE_SET is the maximum size you've set the datafile to. Also relevant is whether you've set the AUTOEXTEND option to ON (its name does what it implies).
If your datafile has a low max size or autoextend is not on you could simply run:
alter database datafile 'path_to_your_file\that_file.DBF' autoextend on maxsize unlimited;
However if its size is at/near 32gb an autoextend is on, then yes, you do need another datafile for the tablespace:
alter tablespace system add datafile 'path_to_your_datafiles_folder\name_of_df_you_want.dbf' size 10m autoextend on maxsize unlimited;
Few things to try, Ensure the Framework and all it's headers are imported into your project properly.
Also in your Build Settings
set YES
to Always search user paths
, and make sure your User header paths
are pointing to the Framework.
Finally, Build->Clean and Restart Xcode.
Hope this helps !
UPDATE: According to SDWebImage's installation, it's required you make a modification to Header Search Path
and not User header paths
, As seen below.
Have you done this as well? I suggest slowly, re-doing all the installation steps from the beginning.
i edit the html page with notepad ++ ,set encoding to utf-8 and its work
To keep this question current it is worth highlighting that AssemblyInformationalVersion
is used by NuGet and reflects the package version including any pre-release suffix.
For example an AssemblyVersion of 1.0.3.* packaged with the asp.net core dotnet-cli
dotnet pack --version-suffix ci-7 src/MyProject
Produces a package with version 1.0.3-ci-7 which you can inspect with reflection using:
CustomAttributeExtensions.GetCustomAttribute<AssemblyInformationalVersionAttribute>(asm);
You didn't state what web server you were using, but Apache has a nice little module called Mime Magic which it uses to determine the type of a file when told to do so. It reads some of the file's content and tries to figure out what type it is based on the characters found. And as Dave Webb Mentioned the MimeTypes Module under python will work, provided an extension is handy.
Alternatively, if you are sitting on a UNIX box you can use sys.popen('file -i ' + fileName, mode='r')
to grab the MIME type. Windows should have an equivalent command, but I'm unsure as to what it is.
if the content of foo.py
print __name__
if __name__ == '__main__':
print 'XXXX'
A file foo.py can be used in two ways.
- imported in another file :
import foo
In this case __name__
is foo
, the code section does not get executed and does not print XXXX
.
- executed directly :
python foo.py
When it is executed directly, __name__
is same as __main__
and the code in that section is executed and prints XXXX
One of the use of this functionality to write various kind of unit tests within the same module.
Something like this would work
/^\d{2}$/
If primary key is not already defined on parent table then this issue may arise. Please try to define the primary key on existing table. For eg:
ALTER TABLE table_name
ADD PRIMARY KEY (the_column_which_is_primary_key);
Hope this helps:
function array_keys_exist($searchForKeys = array(), $inArray = array()) {
$inArrayKeys = array_keys($inArray);
return count(array_intersect($searchForKeys, $inArrayKeys)) == count($searchForKeys);
}
mysqldump will not dump database events, triggers and routines unless explicitly stated when dumping individual databases;
mysqldump -uuser -p db_name --events --triggers --routines > db_name.sql
Okay here some more complex sample for the use of For /F
:: Main
@prompt -$G
call :REGQUERY "Software\Classes\CLSID\{3E6AE265-3382-A429-56D1-BB2B4D1D}"
@goto :EOF
:REGQUERY
:: Checks HKEY_LOCAL_MACHINE\ and HKEY_CURRENT_USER\
:: for the key and lists its content
@call :EXEC "REG QUERY HKCU\%~1"
@call :EXEC "REG QUERY "HKLM\%~1""
@goto :EOF
:EXEC
@set output=
@for /F "delims=" %%i in ('%~1 2^>nul') do @(
set output=%%i
)
@if not "%output%"=="" (
echo %1 -^> %output%
)
@goto :EOF
I packed it into the sub function :EXEC so all of its nasty details of implementation doesn't litters the main script. So it got some kinda some batch tutorial. Notes 'bout the code:
echo %1 -^>...
so there ^ makes it possible the output a '>' via echo what else wouldn't have been possible.@if not "%output%"==""
looks like in most common programming languages - it's maybe different that you expected (if you're not used to MS-batch). Well remove the '@' at the beginning. Study the output. Change it tonot %output%==""
-rerun and consider why this doesn't work. ;)please modify your router.module.ts as:
const routes: Routes = [
{
path: '',
redirectTo: 'one',
pathMatch: 'full'
},
{
path: 'two',
component: ClassTwo, children: [
{
path: 'three',
component: ClassThree,
outlet: 'nameThree',
},
{
path: 'four',
component: ClassFour,
outlet: 'nameFour'
},
{
path: '',
redirectTo: 'two',
pathMatch: 'full'
}
]
},];
and in your component1.html
<h3>In One</h3>
<nav>
<a routerLink="/two" class="dash-item">...Go to Two...</a>
<a routerLink="/two/three" class="dash-item">... Go to THREE...</a>
<a routerLink="/two/four" class="dash-item">...Go to FOUR...</a>
</nav>
<router-outlet></router-outlet> // Successfully loaded component2.html
<router-outlet name="nameThree" ></router-outlet> // Error: Cannot match any routes. URL Segment: 'three'
<router-outlet name="nameFour" ></router-outlet> // Error: Cannot match any routes. URL Segment: 'three'
Perhaps this is obvious, but FWIW this will only work if the web server is serving requests for that website on the alternate port. It's not at all uncommon for a webserver to only serve a site on port 80.
Mutex and binary semaphore are both of the same usage, but in reality, they are different.
In case of mutex, only the thread which have locked it can unlock it. If any other thread comes to lock it, it will wait.
In case of semaphone, that's not the case. Semaphore is not tied up with a particular thread ID.
For me changing the build configuration from release to Debug solved the issue.
You can find Build Configuration in Edit Scheme -> Run -> Info -> Build Configuration
Clean your project and re run.
If using Postgres or SQLite, you can use the Filter clause to improve readability:
SELECT
COUNT(1) FILTER (WHERE POSITION = 'Manager') AS ManagerCount,
COUNT(1) FILTER (WHERE POSITION = 'Other') AS OtherCount
FROM ...
BigQuery also has Countif
- see the support across different SQL dialects for these features here:
https://modern-sql.com/feature/filter
The state you save at onSaveInstanceState()
is later available at onCreate()
method invocation. So use onCreate
(and its Bundle
parameter) to restore state of your activity.
SELECT CONCAT('ALTER TABLE ',TABLE_NAME,' ENGINE=InnoDB;')
FROM INFORMATION_SCHEMA.TABLES
WHERE ENGINE='MyISAM'
AND table_schema = 'mydatabase';
Works like a charm.
This will give you list of all tables with the alter queries that you can run in a batch
Java references always point to an object. The object has a header that amongst other things identifies the concrete type (so casts can fail with ClassCastException
). For arrays, the start of the object also includes the length, the data then follows immediately after in memory (technically an implementation is free to do what it pleases, but it would be daft to do anything else). So, you can;t have a reference that points somewhere into an array.
In C pointers point anywhere and to anything, and you can point to the middle of an array. But you can't safely cast or find out how long the array is. In D the pointer contains an offset into the memory block and length (or equivalently a pointer to the end, I can't remember what the implementation actually does). This allows D to slice arrays. In C++ you would have two iterators pointing to the start and end, but C++ is a bit odd like that.
So getting back to Java, no you can't. As mentioned, NIO ByteBuffer
allows you to wrap an array and then slice it, but gives an awkward interface. You can of course copy, which is probably very much faster than you would think. You could introduce your own String
-like abstraction that allows you to slice an array (the current Sun implementation of String
has a char[]
reference plus a start offset and length, higher performance implementation just have the char[]
). byte[]
is low level, but any class-based abstraction you put on that is going to make an awful mess of the syntax, until JDK7 (perhaps).
I just had to figure this out for a client presentation and found a work around to having the GIF play a few times by making a fake loop.
Hope this helps.
Update 24 Aug '12: In jQuery 1.8, it is no longer possible to access the element's events using .data('events')
. (See this bug for details.) It is possible to access the same data with jQuery._data(elem, 'events')
, an internal data structure, which is undocumented and therefore not 100% guaranteed to remain stable. This shouldn't, however, be a problem, and the relevant line of the plugin code above can be changed to the following:
var data = jQuery._data(this[0], 'events')[type];
jQuery events are stored in a data object called events
, so you could search in this:
var button = $('#myButton');
if (-1 !== $.inArray(onButtonClicked, button.data('events').click)) {
button.click(onButtonClicked);
}
It would be best, of course, if you could structure your application so this code only gets called once.
This could be encapsulated into a plugin:
$.fn.isBound = function(type, fn) {
var data = this.data('events')[type];
if (data === undefined || data.length === 0) {
return false;
}
return (-1 !== $.inArray(fn, data));
};
You could then call:
var button = $('#myButton');
if (!button.isBound('click', onButtonClicked)) {
button.click(onButtonClicked);
}
There is Ints.tryParse()
in Guava. It doesn't throw exception on non-numeric string, however it does throw exception on null string.
maybe you could use AsyncStorage setItem and getItem...and store the data as string, then use the json parser for convert it again to json...
A command like this runs the m-file successfully:
"C:\<a long path here>\matlab.exe" -nodisplay -nosplash -nodesktop -r "run('C:\<a long path here>\mfile.m'); exit;"
If you spot the use of eval() in your code, remember the mantra “eval() is evil.”
This function takes an arbitrary string and executes it as JavaScript code. When the code in question is known beforehand (not determined at runtime), there’s no reason to use eval(). If the code is dynamically generated at runtime, there’s often a better way to achieve the goal without eval(). For example, just using square bracket notation to access dynamic properties is better and simpler:
// antipattern
var property = "name";
alert(eval("obj." + property));
// preferred
var property = "name";
alert(obj[property]);
Using eval()
also has security implications, because you might be executing code (for
example coming from the network) that has been tampered with.
This is a common antipattern when dealing with a JSON response from an Ajax request.
In those cases
it’s better to use the browsers’ built-in methods to parse the JSON response to make
sure it’s safe and valid. For browsers that don’t support JSON.parse()
natively, you can
use a library from JSON.org.
It’s also important to remember that passing strings to setInterval()
, setTimeout()
,
and the Function()
constructor is, for the most part, similar to using eval()
and therefore
should be avoided.
Behind the scenes, JavaScript still has to evaluate and execute the string you pass as programming code:
// antipatterns
setTimeout("myFunc()", 1000);
setTimeout("myFunc(1, 2, 3)", 1000);
// preferred
setTimeout(myFunc, 1000);
setTimeout(function () {
myFunc(1, 2, 3);
}, 1000);
Using the new Function() constructor is similar to eval() and should be approached
with care. It could be a powerful construct but is often misused.
If you absolutely must
use eval()
, you can consider using new Function() instead.
There is a small potential benefit because the code evaluated in new Function() will be running in a local function scope, so any variables defined with var in the code being evaluated will not become globals automatically.
Another way to prevent automatic globals is to wrap the
eval()
call into an immediate function.
empty()
function:Returns FALSE
if var
has a non-empty and non-zero value.
That’s a good thing to know. In other words, everything from NULL
, to 0
to “” will return TRUE
when using the empty()
function.
isset()
function returns:Returns TRUE
if var
exists; FALSE
otherwise.
In other words, only variables that don’t exist (or, variables with strictly NULL
values) will return FALSE
on the isset()
function. All variables that have any type of value, whether it is 0
, a blank text string, etc. will return TRUE
.
if you have long processing server side code, I don't think it does fall into 404 as you said ("it goes to a webpage is not found error page")
Browser should report request timeout error.
You may do 2 things:
Based on CGI/Server side engine increase timeout there
PHP : http://www.php.net/manual/en/info.configuration.php#ini.max-execution-time - default is 30 seconds
In php.ini:
max_execution_time 60
Increase apache timeout - default is 300 (in version 2.4 it is 60).
In your httpd.conf (in server config or vhost config)
TimeOut 600
Note that first setting allows your PHP script to run longer, it will not interferre with network timeout.
Second setting modify maximum amount of time the server will wait for certain events before failing a request
Sorry, I'm not sure if you are using PHP as server side processing, but if you provide more info I will be more accurate.
You should use django methods, like exists. Its there for you to use it.
if qs.exists():
return qs[0]
return None
You can remove the border from top if the element is sibling of the row . Add this to css :
.row + .row {
border-top:0;
}
Here is the link to the fiddle http://jsfiddle.net/7cb3Y/3/
Since Java 15, you can use a non-static string method called String::formatted(Object... args)
Example:
String foo = "foo";
String bar = "bar";
String str = "First %s, then %s".formatted(foo, bar);
Output:
"First foo, then bar"
The method jQuery (v1.10) uses to find this is:
var doc = document.documentElement;
var left = (window.pageXOffset || doc.scrollLeft) - (doc.clientLeft || 0);
var top = (window.pageYOffset || doc.scrollTop) - (doc.clientTop || 0);
That is:
window.pageXOffset
first and uses that if it exists.document.documentElement.scrollLeft
.document.documentElement.clientLeft
if it exists.The subtraction of document.documentElement.clientLeft
/ Top
only appears to be required to correct for situations where you have applied a border (not padding or margin, but actual border) to the root element, and at that, possibly only in certain browsers.
Pure html is not able to do what you want. My suggestion would be to write a simple javascript function to do the roudning for you.
In Short,
Logins will have the access of the server.
and
Users will have the access of the database.
I'm using rather specified charset (ISO-8859-2) because not every mail system (for example: http://10minutemail.com) can read UTF-8 mails. If you need this:
function utf8_to_latin2($str)
{
return iconv ( 'utf-8', 'ISO-8859-2' , $str );
}
function my_mail($to,$s,$text,$form, $reply)
{
mail($to,utf8_to_latin2($s),utf8_to_latin2($text),
"From: $form\r\n".
"Reply-To: $reply\r\n".
"X-Mailer: PHP/" . phpversion());
}
I have made another mailer function, because apple device could not read well the previous version.
function utf8mail($to,$s,$body,$from_name="x",$from_a = "[email protected]", $reply="[email protected]")
{
$s= "=?utf-8?b?".base64_encode($s)."?=";
$headers = "MIME-Version: 1.0\r\n";
$headers.= "From: =?utf-8?b?".base64_encode($from_name)."?= <".$from_a.">\r\n";
$headers.= "Content-Type: text/plain;charset=utf-8\r\n";
$headers.= "Reply-To: $reply\r\n";
$headers.= "X-Mailer: PHP/" . phpversion();
mail($to, $s, $body, $headers);
}
As of 2020 language management become easy! All you have to do is:
Activity.applyOverrideConfiguration
Locale.setDefault
You must call those from the activity constructor since you can call to applyOverrideConfiguration
only once, and the system calls it pretty early.
And watch out from app-bundles, Google will split your APK by language resources automatically when using app-bundles. Check out the new API and the workaround here.
I created a helper class to help you with it. In my implementation G.app
is the application context. Also, I need to access resources from the app context so I use the Res
class for it, this one is optional, but I provide its code as well.
public BaseActivity(){
LanguageUtility.init(this);
}
public void changeLanguage(Local local){
// you must recreat your activity after you call this
LanguageUtillity.setDefaultLanguage(local, this);
}
public class LanguageUtility {
private static Configuration configuration;
public static void setDefaultLanguage(Locale locale, Context context) {
Locale.setDefault(locale);
context.getSharedPreferences("LocaleSettings", Context.MODE_PRIVATE)
.edit()
.putString("language", locale.getLanguage())
.putString("country", locale.getCountry())
.putString("variant", locale.getVariant())
.apply();
configuration = createConfiguration(context);
Res.updateContext();
}
/**
* Used to update your app context in case you cache it.
*/
public static Context createConfigurationContext(Context context) {
return context.createConfigurationContext(getConfiguration(context));
}
public static void init(Activity activity) {
activity.applyOverrideConfiguration(LanguageUtility.getConfiguration(G.app));
// you can't access sharedPrefferences from activity constructor
// with activity context, so I used the app context.
Locale.setDefault(getLocale(G.app));
}
@NotNull
private static Configuration getConfiguration(Context context) {
if (configuration == null) {
configuration = createConfiguration(context);
}
return configuration;
}
@NotNull
private static Configuration createConfiguration(Context context) {
Locale locale = getLocale(context);
Configuration configuration = new Configuration();
configuration.setLocale(locale);
LanguageUtility.configuration = configuration;
return configuration;
}
@NotNull
private static Locale getLocale(Context context) {
Locale aDefault = Locale.getDefault();
SharedPreferences preferences =
context.getSharedPreferences("LocaleSettings", Context.MODE_PRIVATE);
String language = preferences.getString("language", aDefault.getLanguage());
String country = preferences.getString("country", aDefault.getCountry());
String variant = preferences.getString("variant", aDefault.getVariant());
return new Locale(language, country, variant);
}
}
An optional Res class.
public class Res {
@SuppressLint("StaticFieldLeak")
public static Context appLocalContext = LanguageUtility.createConfigurationContext(G.app);
public static void updateContext() {
appLocalContext = LanguageUtility.createConfigurationContext(G.app);
}
public static String getString(@StringRes int id, Object... formatArgs) {
return appLocalContext.getResources().getString(id, formatArgs);
}
public static int getColor(@ColorRes int id) {
return G.app.getColor(id);
}
}
MailSystem.NET contains all your need for IMAP4. It's free & open source.
(I'm involved in the project)
Gradle 6.3, Java library. The code from "jar task" adds the dependencies to the "build/libs/xyz.jar" when running "gradle build" task.
plugins {
id 'java-library'
}
jar {
from {
configurations.compile.collect { it.isDirectory() ? it : zipTree(it) }
}
}
To get the raw data, use request.data
. This only works if it couldn't be parsed as form data, otherwise it will be empty and request.form
will have the parsed data.
from flask import request
request.data
Look at JavaDoc of replaceAll method of String class:
Replaces each substring of this string that matches the given regular expression with the given replacement. An invocation of this method of the form str.replaceAll(regex, repl) yields exactly the same result as the expression
java.util.regex.Pattern.compile(regex).matcher(str).replaceAll(repl)
As you can see you can use Pattern and Matcher to do that.
For me, This error was because i had a prepare segue step that wasn't applicable to the segue that was being done.
long story:
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
let gosetup = segue.destination as! Update
gosetup.wherefrom = updatestring
}
This was being done to all segue when it was only for one. So i create a boolean and placed the gosetup inside it.
"objectForKey will return nil if it doesn't exist." It will also return nil if it does exist and it is either an integer or a boolean with a value of zero (i.e. FALSE or NO for the boolean).
I've tested this in the simulator for both 5.1 and 6.1. This means that you cannot really test for either integers or booleans having been set by asking for "the object". You can get away with this for integers if you don't mind treating "not set" as if it were "set to zero".
The people who already tested this appear to have been fooled by the false negative aspect, i.e. testing this by seeing if objectForKey returns nil when you know the key hasn't been set but failing to notice that it also returns nil if the key has been set but has been set to NO.
For my own problem, that sent me here, I just ended up changing the semantics of my boolean so that my desired default was in congruence with the value being set to NO. If that's not an option, you'll need to store as something other than a boolean and make sure that you can tell the difference between YES, NO, and "not set."
Instead of having the android:actionMenuTextAppearance
item under your action bar style, move it under your app theme.
1st Step : Go for the workstation In my case -> cd /c/Users/rashni/MyWS/WSpace
2nd Step : create a folder In my case -> mkdir config
3rd step : use command In my case -> git config --global user.name "rashni" In my case -> git config --global user.email [email protected]
4th step : To check all configuration(optional) In my case -> git config --list
If you are using bootstrap.js then the below code might be useful. This is very simple. Dont have to write anything in js to invoke the pop-up.
Source :http://www.w3schools.com/bootstrap/tryit.asp?filename=trybs_modal&stacked=h
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
<h2>Modal Example</h2>
<!-- Trigger the modal with a button -->
<button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">Open Modal</button>
<!-- Modal -->
<div class="modal fade" id="myModal" role="dialog">
<div class="modal-dialog">
<!-- Modal content-->
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">Modal Header</h4>
</div>
<div class="modal-body">
<p>Some text in the modal.</p>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
The second way you showed uses an extension method to execute the delegate method for each of the elements in the list.
This way, you have another delegate (=method) call.
Additionally, there is the possibility to iterate the list with a for loop.
this.mainInput
doesn't actually point to anything. Since you are using a controlled component (i.e. the value of the input is obtained from state) you can set this.state.city
to null:
onHandleSubmit(e) {
e.preventDefault();
const city = this.state.city;
this.props.onSearchTermChange(city);
this.setState({ city: '' });
}
Database is a collection of schemas and schema is a collection of tables. But in MySQL they use it the same way.
My general understanding is that any object variable (such as a list or a dict, among others) can be modified through its functions. What I believe you are not able to do is reassign the parameter - i.e., assign it by reference within a callable function.
That is consistent with many other languages.
Run the following short script to see how it works:
def func1(x, l1):
x = 5
l1.append("nonsense")
y = 10
list1 = ["meaning"]
func1(y, list1)
print(y)
print(list1)
Further to the answer by Jon Skeet, which uses this example code:
// Illegal code - because otherwise life would be Bad
List<Dog> dogs = new ArrayList<Dog>(); // ArrayList implements List
List<Animal> animals = dogs; // Awooga awooga
animals.add(new Cat());
Dog dog = dogs.get(0); // This should be safe, right?
At the deepest level, the problem here is that dogs
and animals
share a reference. That means that one way to make this work would be to copy the entire list, which would break reference equality:
// This code is fine
List<Dog> dogs = new ArrayList<Dog>();
dogs.add(new Dog());
List<Animal> animals = new ArrayList<>(dogs); // Copy list
animals.add(new Cat());
Dog dog = dogs.get(0); // This is fine now, because it does not return the Cat
After calling List<Animal> animals = new ArrayList<>(dogs);
, you cannot subsequently directly assign animals
to either dogs
or cats
:
// These are both illegal
dogs = animals;
cats = animals;
therefore you can't put the wrong subtype of Animal
into the list, because there is no wrong subtype -- any object of subtype ? extends Animal
can be added to animals
.
Obviously, this changes the semantics, since the lists animals
and dogs
are no longer shared, so adding to one list does not add to the other (which is exactly what you want, to avoid the problem that a Cat
could be added to a list that is only supposed to contain Dog
objects). Also, copying the entire list can be inefficient. However, this does solve the type equivalence problem, by breaking reference equality.
I needed to make a ListView
with items of different colors. I modified Shardul's method a bit and result in this:
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
this, android.R.layout.simple_list_item_1, colorString) {
@Override
public View getView(int position, View convertView, ViewGroup parent) {
TextView textView = (TextView) super.getView(position, convertView, parent);
textView.setBackgroundColor(assignBackgroundColor(position));
textView.setTextColor(assignTextColor(position));
return textView;
}
};
colorList.setAdapter(adapter);
assignBackgroundColor()
and assignTextColor()
are methods that assign color you want. They can be replaced with int[]
arrays.
I solved it like this way in Swift 4.
I create a extension of UITableViewCell and include this code:
override open var frame: CGRect {
get {
return super.frame
}
set (newFrame) {
var frame = newFrame
frame.origin.y += 10
frame.origin.x += 10
frame.size.height -= 15
frame.size.width -= 2 * 10
super.frame = frame
}
}
override open func awakeFromNib() {
super.awakeFromNib()
layer.cornerRadius = 15
layer.masksToBounds = false
}
I hope it helps you.
From requests 2.4.2 (https://pypi.python.org/pypi/requests), the "json" parameter is supported. No need to specify "Content-Type". So the shorter version:
requests.post('http://httpbin.org/post', json={'test': 'cheers'})
You can use \D
which means non digits.
var removedText = self.val().replace(/\D+/g, '');
You could also use the HTML5 number input.
<input type="number" name="digit" />
While the built-in libs for XML parsing are quite good I am partial to lxml.
But for parsing RSS feeds, I'd recommend Universal Feed Parser, which can also parse Atom. Its main advantage is that it can digest even most malformed feeds.
Python 2.6 already includes a JSON parser, but a newer version with improved speed is available as simplejson.
With these tools building your app shouldn't be that difficult.
To get directory of executing script
print os.path.dirname( inspect.getfile(inspect.currentframe()))
Another way, for variety. Although this is somewhat less flexible than the others. Unfortunately, the graphs appear one above the other, rather than side-by-side, which you did request in your original question. But it is very concise.
df.plot(subplots=True)
If the dataframe has more than the two series, and you only want to plot those two, you'll need to replace df
with df[['korisnika','osiguranika']]
.
Use geom_text
, with aes
label. You can play with hjust, vjust
to adjust text position.
ggplot(nba, aes(x= MIN, y= PTS, colour="green", label=Name))+
geom_point() +geom_text(aes(label=Name),hjust=0, vjust=0)
ggplot(nba, aes(x= MIN, y= PTS, colour="green", label=Name))+
geom_point() +
geom_text(aes(label=ifelse(PTS>24,as.character(Name),'')),hjust=0,vjust=0)
For creating real UML class diagrams:
In Visual Studio 2013 Ultimate you can do this without any external tools.
You will have a empty UMLClassDiagram.classdiagram.
If you just want to throw away the changes and revert to the last commit (the one you wanted to share):
git reset --hard HEAD~
You may want to check to make absolutely sure you want this (git log
), because you'll loose all changes.
A safer alternative is to run
git reset --soft HEAD~ # reset to the last commit
git stash # stash all the changes in the working tree
git push # push changes
git stash pop # get your changes back
Since PyYAML's yaml.load()
function parses YAML documents to native Python data structures, you can just access items by key or index. Using the example from the question you linked:
import yaml
with open('tree.yaml', 'r') as f:
doc = yaml.load(f)
To access branch1 text
you would use:
txt = doc["treeroot"]["branch1"]
print txt
"branch1 text"
because, in your YAML document, the value of the branch1
key is under the treeroot
key.
Try to change where Member class
public function users() {
return $this->hasOne('User');
}
return $this->belongsTo('User');
With -Raw
you should get what you expect
Since Java 8 you can use: Math.toIntExact(long value)
Returns the value of the long argument; throwing an exception if the value overflows an int.
Source code of Math.toIntExact
in JDK 8:
public static int toIntExact(long value) {
if ((int)value != value) {
throw new ArithmeticException("integer overflow");
}
return (int)value;
}
Assuming you are trying to find if a div exists
$('div').length ? alert('div found') : alert('Div not found')
Before you run a select query, run this:
SET SERVEROUT ON SIZE 6000
SELECT XMLAGG(XMLELEMENT(E,SUPLR_SUPLR_ID||',')).EXTRACT('//text()') "SUPPLIER"
FROM SUPPLIERS;
I know this question is a bit older, but perhaps you're still open for hints or workarounds:
Create a RelativeLayout "wrap_content" with the button image as the background or the button itself as the first element of the layout. Get a LinearLayout and set it to "layout_centerInParent" and "wrap_content". Then set your Drawable as an Imageview. At last set a TextView with your text (locale).
so basically you have this structure:
RelativeLayout
Button
LinearLayout
ImageView
TextView
or like this:
RelativeLayout with "android-specific" button image as background
LinearLayout
ImageView
TextView
I know with this solution there are many elements to deal with, but you can create very easy your own custom button with it and also set the exact position of text and drawables :)
The simplest method is
$dateArray = explode('/', $_POST['date']);
$date = $dateArray[2].'-'.$dateArray[0].'-'.$dateArray[1];
$sql = mysql_query("INSERT INTO user_date (column,column,column) VALUES('',$name,$date)") or die (mysql_error());
public static String saveImage(String folderName, String imageName, RelativeLayout layoutCollage) {
String selectedOutputPath = "";
if (isSDCARDMounted()) {
File mediaStorageDir = new File(
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), folderName);
// Create a storage directory if it does not exist
if (!mediaStorageDir.exists()) {
if (!mediaStorageDir.mkdirs()) {
Log.d("PhotoEditorSDK", "Failed to create directory");
}
}
// Create a media file name
selectedOutputPath = mediaStorageDir.getPath() + File.separator + imageName;
Log.d("PhotoEditorSDK", "selected camera path " + selectedOutputPath);
File file = new File(selectedOutputPath);
try {
FileOutputStream out = new FileOutputStream(file);
if (layoutCollage != null) {
layoutCollage.setDrawingCacheEnabled(true);
layoutCollage.getDrawingCache().compress(Bitmap.CompressFormat.JPEG, 80, out);
}
out.flush();
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
return selectedOutputPath;
}
private static boolean isSDCARDMounted() {
String status = Environment.getExternalStorageState();
return status.equals(Environment.MEDIA_MOUNTED);
}
you can set this in catalina.sh as CATALINA_OPTS=-Xms512m -Xmx512m
Open your tomcat-dir/bin/catalina.sh file and add following line anywhere -
CATALINA_OPTS="$CATALINA_OPTS -Xms1024m -Xmx3024m"
and restart your tomcat
In smarty there is built in modifier you could use that by using |
(single pipeline operator). Like this {$varname|@print_r}
will print value as print_r($php_variable)
Note that your conversion function should ideally be returning a const char *.
If you can afford to put your enums in their separate header files, you could perhaps do something like this with macros (oh, this will be ugly):
#include "enum_def.h"
#include "colour.h"
#include "enum_conv.h"
#include "colour.h"
Where enum_def.h has:
#undef ENUM_START
#undef ENUM_ADD
#undef ENUM_END
#define ENUM_START(NAME) enum NAME {
#define ENUM_ADD(NAME, VALUE) NAME = VALUE,
#define ENUM_END };
And enum_conv.h has:
#undef ENUM_START
#undef ENUM_ADD
#undef ENUM_END
#define ENUM_START(NAME) const char *##NAME##_to_string(NAME val) { switch (val) {
#define ENUM_ADD(NAME, VALUE) case NAME: return #NAME;
#define ENUM_END default: return "Invalid value"; } }
And finally, colour.h has:
ENUM_START(colour)
ENUM_ADD(red, 0xff0000)
ENUM_ADD(green, 0x00ff00)
ENUM_ADD(blue, 0x0000ff)
ENUM_END
And you can use the conversion function as:
printf("%s", colour_to_string(colour::red));
This is ugly, but it's the only way (at the preprocessor level) that lets you define your enum just in a single place in your code. Your code is therefore not prone to errors due to modifications to the enum. Your enum definition and the conversion function will always be in sync. However, I repeat, this is ugly :)
I found that when I got this error it wasn't because I didn't have my default db path set up. It was because I was trying to run mongo.exe before running mongod.exe.
Kotlin for XML
app:cardBackgroundColor="@android:color/red"
code
cardName.setCardBackgroundColor(ContextCompat.getColor(this, R.color.colorGray));
Note The accepted is perfectly fine - but wanted to add a version4 example because they are different enough.
import React from 'react';
import { Link } from 'react-router';
export default class Nav extends React.Component {
render() {
return (
<nav className="Nav">
<div className="Nav__container">
<Link to="/" className="Nav__brand">
<img src="logo.svg" className="Nav__logo" />
</Link>
<div className="Nav__right">
<ul className="Nav__item-wrapper">
<li className="Nav__item">
<Link className="Nav__link" to="/path1">Link 1</Link>
</li>
<li className="Nav__item">
<Link className="Nav__link" to="/path2">Link 2</Link>
</li>
<li className="Nav__item">
<Link className="Nav__link" to="/path3">Link 3</Link>
</li>
</ul>
</div>
</div>
</nav>
);
}
}
import React from 'react';
import { Link, Switch, Route } from 'react-router';
import Nav from './nav';
import Page1 from './page1';
import Page2 from './page2';
import Page3 from './page3';
export default class App extends React.Component {
render() {
return (
<div className="App">
<Router>
<div>
<Nav />
<Switch>
<Route exactly component={Landing} pattern="/" />
<Route exactly component={Page1} pattern="/path1" />
<Route exactly component={Page2} pattern="/path2" />
<Route exactly component={Page3} pattern="/path3" />
<Route component={Page404} />
</Switch>
</div>
</Router>
</div>
);
}
}
Alternatively, if you want a more dynamic nav, you can look at the excellent v4 docs: https://reacttraining.com/react-router/web/example/sidebar
A few people have asked about a page without the Nav, such as a login page. I typically approach it with a wrapper Route component
import React from 'react';
import { Link, Switch, Route } from 'react-router';
import Nav from './nav';
import Page1 from './page1';
import Page2 from './page2';
import Page3 from './page3';
const NavRoute = ({exact, path, component: Component}) => (
<Route exact={exact} path={path} render={(props) => (
<div>
<Header/>
<Component {...props}/>
</div>
)}/>
)
export default class App extends React.Component {
render() {
return (
<div className="App">
<Router>
<Switch>
<NavRoute exactly component={Landing} pattern="/" />
<Route exactly component={Login} pattern="/login" />
<NavRoute exactly component={Page1} pattern="/path1" />
<NavRoute exactly component={Page2} pattern="/path2" />
<NavRoute component={Page404} />
</Switch>
</Router>
</div>
);
}
}
There is just a caveat that I discovered today.
If you have a function that is calling a plot a lot of times you better use plt.close(fig)
instead of fig.clf()
somehow the first does not accumulate in memory. In short if memory is a concern use plt.close(fig) (Although it seems that there are better ways, go to the end of this comment for relevant links).
So the the following script will produce an empty list:
for i in range(5):
fig = plot_figure()
plt.close(fig)
# This returns a list with all figure numbers available
print(plt.get_fignums())
Whereas this one will produce a list with five figures on it.
for i in range(5):
fig = plot_figure()
fig.clf()
# This returns a list with all figure numbers available
print(plt.get_fignums())
From the documentation above is not clear to me what is the difference between closing a figure and closing a window. Maybe that will clarify.
If you want to try a complete script there you have:
import numpy as np
import matplotlib.pyplot as plt
x = np.arange(1000)
y = np.sin(x)
for i in range(5):
fig = plt.figure()
ax = fig.add_subplot(1, 1, 1)
ax.plot(x, y)
plt.close(fig)
print(plt.get_fignums())
for i in range(5):
fig = plt.figure()
ax = fig.add_subplot(1, 1, 1)
ax.plot(x, y)
fig.clf()
print(plt.get_fignums())
If memory is a concern somebody already posted a work-around in SO see: Create a figure that is reference counted
take a look at shutil
. shutil.copyfile(src, dst)
will copy a file to another file.
Note that shutil.copyfile
will not create directories that do not already exist. for that, use os.makedirs
There are subtle differences as to how the fileName
you are passing is interpreted. Basically, you have 2 different methods: ClassLoader.getResourceAsStream()
and Class.getResourceAsStream()
. These two methods will locate the resource differently.
In Class.getResourceAsStream(path)
, the path is interpreted as a path local to the package of the class you are calling it from. For example calling, String.class.getResourceAsStream("myfile.txt")
will look for a file in your classpath at the following location: "java/lang/myfile.txt"
. If your path starts with a /
, then it will be considered an absolute path, and will start searching from the root of the classpath. So calling String.class.getResourceAsStream("/myfile.txt")
will look at the following location in your class path ./myfile.txt
.
ClassLoader.getResourceAsStream(path)
will consider all paths to be absolute paths. So calling String.class.getClassLoader().getResourceAsStream("myfile.txt")
and String.class.getClassLoader().getResourceAsStream("/myfile.txt")
will both look for a file in your classpath at the following location: ./myfile.txt
.
Everytime I mention a location in this post, it could be a location in your filesystem itself, or inside the corresponding jar file, depending on the Class and/or ClassLoader you are loading the resource from.
In your case, you are loading the class from an Application Server, so your should use Thread.currentThread().getContextClassLoader().getResourceAsStream(fileName)
instead of this.getClass().getClassLoader().getResourceAsStream(fileName)
. this.getClass().getResourceAsStream()
will also work.
Read this article for more detailed information about that particular problem.
One of the answers to this question states that my explanation seems to be incorrect for Tomcat 7. I've tried to look around to see why that would be the case.
So I've looked at the source code of Tomcat's WebAppClassLoader
for several versions of Tomcat. The implementation of findResource(String name)
(which is utimately responsible for producing the URL to the requested resource) is virtually identical in Tomcat 6 and Tomcat 7, but is different in Tomcat 8.
In versions 6 and 7, the implementation does not attempt to normalize the resource name. This means that in these versions, classLoader.getResourceAsStream("/resource.txt")
may not produce the same result as classLoader.getResourceAsStream("resource.txt")
event though it should (since that what the Javadoc specifies). [source code]
In version 8 though, the resource name is normalized to guarantee that the absolute version of the resource name is the one that is used. Therefore, in Tomcat 8, the two calls described above should always return the same result. [source code]
As a result, you have to be extra careful when using ClassLoader.getResourceAsStream()
or Class.getResourceAsStream()
on Tomcat versions earlier than 8. And you must also keep in mind that class.getResourceAsStream("/resource.txt")
actually calls classLoader.getResourceAsStream("resource.txt")
(the leading /
is stripped).