For the interested: I've written a function that utilises preg_match so that you're able to replace from right hand side using regex.
function preg_rreplace($search, $replace, $subject) {
preg_match_all($search, $subject, $matches, PREG_SET_ORDER);
$lastMatch = end($matches);
if ($lastMatch && false !== $pos = strrpos($subject, $lastMatchedStr = $lastMatch[0])) {
$subject = substr_replace($subject, $replace, $pos, strlen($lastMatchedStr));
}
return $subject;
}
Or as a shorthand combination/implementation of both options:
function str_rreplace($search, $replace, $subject) {
return (false !== $pos = strrpos($subject, $search)) ?
substr_replace($subject, $replace, $pos, strlen($search)) : $subject;
}
function preg_rreplace($search, $replace, $subject) {
preg_match_all($search, $subject, $matches, PREG_SET_ORDER);
return ($lastMatch = end($matches)) ? str_rreplace($lastMatch[0], $replace, $subject) : $subject;
}
based on https://stackoverflow.com/a/3835653/3017716 and https://stackoverflow.com/a/23343396/3017716
In the "disable" script, the order by clause should be that:
ORDER BY c.constraint_type DESC, c.last_change DESC
The goal of this clause is disable the constraints in the right order.
enter code here<form id="form">
<input type="text"><input type="text"><input type="text">
<input type="button" id="new">
</form>
<form id="form1">
<input type="text"><input type="text"><input type="text">
<input type="button" id="new1">
</form>
<script type="text/javascript">
$(document).ready(function(e) {
$("#new").click( function(){
//alert("fegf");
$("#form input").val('');
});
$("#new1").click( function(){
//alert("fegf");
$("#form1 input").val('');
});
});
</script>
Use jsbeautifier instead of trying to do it manually.
Here's an easy jQuery way:
var el = $('#yourid .yourclass');
el.html(el.html().replace(/Old Text/ig, "New Text"));
Your original problem was wrong pattern symbol "h" which stands for the clock hour (range 1-12). In this case, the am-pm-information is missing. Better, use the pattern symbol "H" instead (hour of day in range 0-23). So the pattern should rather have been like:
uuuu-MM-dd'T'HH:mm:ss.SSSX (best pattern also suitable for strict mode)
You can make your code simpler and more readable like this
bad_words = ['bad', 'naughty']
with open('oldfile.txt') as oldfile, open('newfile.txt', 'w') as newfile:
for line in oldfile:
if not any(bad_word in line for bad_word in bad_words):
newfile.write(line)
using a Context Manager and any.
original answer
Yes.
window.screen.availHeight
window.screen.availWidth
update 2017-11-10
From Tsunamis in the comments:
To get the native resolution of i.e. a mobile device you have to multiply with the device pixel ratio:
window.screen.width * window.devicePixelRatio
andwindow.screen.height * window.devicePixelRatio
. This will also work on desktops, which will have a ratio of 1.
And from Ben in another answer:
In vanilla JavaScript, this will give you the AVAILABLE width/height:
window.screen.availHeight window.screen.availWidth
For the absolute width/height, use:
window.screen.height window.screen.width
By your tags, I'm assuming your using Github. Why not create some branch protection rules for your master branch? That way even if you do try to push to master, it will reject it.
1) Go to the 'Settings' tab of your repo on Github.
2) Click on 'Branches' on the left side-menu.
3) Click 'Add rule'
4) Enter 'master' for a branch pattern.
5) Check off 'Require pull request reviews before merging'
I would also recommend doing the same for your dev branch.
len(repr(float(x)/3))
However I must say that this isn't as reliable as you think.
Floats are entered/displayed as decimal numbers, but your computer (in fact, your standard C library) stores them as binary. You get some side effects from this transition:
>>> print len(repr(0.1))
19
>>> print repr(0.1)
0.10000000000000001
The explanation on why this happens is in this chapter of the python tutorial.
A solution would be to use a type that specifically tracks decimal numbers, like python's decimal.Decimal
:
>>> print len(str(decimal.Decimal('0.1')))
3
The compiler complains on
var completionHandler: (Float)->Void = {}
because the right-hand side is not a closure of the appropriate signature, i.e. a closure taking a float argument. The following would assign a "do nothing" closure to the completion handler:
var completionHandler: (Float)->Void = {
(arg: Float) -> Void in
}
and this can be shortened to
var completionHandler: (Float)->Void = { arg in }
due to the automatic type inference.
But what you probably want is that the completion handler is initialized to nil
in the same way that an Objective-C instance variable is inititialized to nil
. In Swift
this can be realized with an optional:
var completionHandler: ((Float)->Void)?
Now the property is automatically initialized to nil
("no value").
In Swift you would use optional binding to check of a the
completion handler has a value
if let handler = completionHandler {
handler(result)
}
or optional chaining:
completionHandler?(result)
The rules in your .gitignore
file only apply to untracked files. Since the files under that directory were already committed in your repository, you have to unstage them, create a commit, and push that to GitHub:
git rm -r --cached some-directory
git commit -m 'Remove the now ignored directory "some-directory"'
git push origin master
You can't delete the file from your history without rewriting the history of your repository - you shouldn't do this if anyone else is working with your repository, or you're using it from multiple computers. If you still want to do that, you can use git filter-branch
to rewrite the history - there is a helpful guide to that here.
Additionally, note the output from git rm -r --cached some-directory
will be something like:
rm 'some-directory/product/cache/1/small_image/130x130/small_image.jpg'
rm 'some-directory/product/cache/1/small_image/135x/small_image.jpg'
rm 'some-directory/.htaccess'
rm 'some-directory/logo.jpg'
The rm
is feedback from git about the repository; the files are still in the working directory.
I worked quite a long time with Flux and now quite a long time using Redux. As Dan pointed out both architectures are not so different. The thing is that Redux makes the things simpler and cleaner. It teaches you a couple of things on top of Flux. Like for example Flux is a perfect example of one-direction data flow. Separation of concerns where we have data, its manipulations and view layer separated. In Redux we have the same things but we also learn about immutability and pure functions.
Pushing and popping registers are behind the scenes equivalent to this:
push reg <= same as => sub $8,%rsp # subtract 8 from rsp
mov reg,(%rsp) # store, using rsp as the address
pop reg <= same as=> mov (%rsp),reg # load, using rsp as the address
add $8,%rsp # add 8 to the rsp
Note this is x86-64 At&t syntax.
Used as a pair, this lets you save a register on the stack and restore it later. There are other uses, too.
If you have this :
a = [[1, 1], [2, 1],[3, 1]]
You can easily access this by using :
print(a[0][2])
a[0][1] = 7
print(a)
@ImportanceOfBeingErnest 's answer is good if you only want to change the linewidth inside the legend box. But I think it is a bit more complex since you have to copy the handles before changing legend linewidth. Besides, it can not change the legend label fontsize. The following two methods can not only change the linewidth but also the legend label text font size in a more concise way.
import numpy as np
import matplotlib.pyplot as plt
# make some data
x = np.linspace(0, 2*np.pi)
y1 = np.sin(x)
y2 = np.cos(x)
# plot sin(x) and cos(x)
fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot(x, y1, c='b', label='y1')
ax.plot(x, y2, c='r', label='y2')
leg = plt.legend()
# get the individual lines inside legend and set line width
for line in leg.get_lines():
line.set_linewidth(4)
# get label texts inside legend and set font size
for text in leg.get_texts():
text.set_fontsize('x-large')
plt.savefig('leg_example')
plt.show()
import numpy as np
import matplotlib.pyplot as plt
# make some data
x = np.linspace(0, 2*np.pi)
y1 = np.sin(x)
y2 = np.cos(x)
# plot sin(x) and cos(x)
fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot(x, y1, c='b', label='y1')
ax.plot(x, y2, c='r', label='y2')
leg = plt.legend()
# get the lines and texts inside legend box
leg_lines = leg.get_lines()
leg_texts = leg.get_texts()
# bulk-set the properties of all lines and texts
plt.setp(leg_lines, linewidth=4)
plt.setp(leg_texts, fontsize='x-large')
plt.savefig('leg_example')
plt.show()
The above two methods produce the same output image:
Unlike in some laguages, empty
is not a keyword in Python. Python lists are constructed form the ground up, so if element i
has a value, then element i-1
has a value, for all i > 0
.
To do an equality check, you usually use either the ==
comparison operator.
>>> my_list = ["asdf", 0, 42, '', None, True, "LOLOL"]
>>> my_list[0] == "asdf"
True
>>> my_list[4] is None
True
>>> my_list[2] == "the universe"
False
>>> my_list[3]
""
>>> my_list[3] == ""
True
Here's a link to the strip
method: your comment indicates to me that you may have some strange file parsing error going on, so make sure you're stripping off newlines and extraneous whitespace before you expect an empty line.
Cconvert NSTimeInterval
milisecondedDate
value to nsstring
and after that convert into int
.
While using some raw sql and undefined objects, using cursor.description
appeared to get what I was looking for:
with connection.cursor() as cur:
print(query)
cur.execute(query)
for item in cur.fetchall():
row = {column.name: item[i] for i, column in enumerate(cur.description)}
print(row)
The character set is part of the locale, which is determined by the value of NLS_LANG
. As the documentation makes clear this is an operating system variable:
NLS_LANG
is set as an environment variable on UNIX platforms.NLS_LANG
is set in the registry on Windows platforms.
Now we can use ALTER SESSION
to change the values for a couple of locale elements, NLS_LANGUAGE and NLS_TERRITORY. But not, alas, the character set. The reason for this discrepancy is - I think - that the language and territory simply effect how Oracle interprets the stored data, e.g. whether to display a comma or a period when displaying a large number. Wheareas the character set is concerned with how the client application renders the displayed data. This information is picked up by the client application at startup time, and cannot be changed from within.
You can't run cd
this way, because cd
isn't a real program; it's a built-in part of the command-line, and all it does is change the command-line's environment. It doesn't make sense to run it in a subprocess, because then you're changing that subprocess's environment — but that subprocess closes immediately, discarding its environment.
To set the current working directory in your actual Java program, you should write:
System.setProperty("user.dir", "C:\\Program Files\\Flowella");
You can use
git show -s --format=%s
Here --format
enables various printing options, see documentation here. Specifically, %s
means 'subject'. In addition, -s
stands for --no-patch
, which suppresses the diff content.
I often use
git show -s --format='%h %s'
where %h
denotes a short hash of the commit
Another way is
git show-branch --no-name HEAD
It seems to run faster than the other way.
I actually wrote a small tool to see the status of all my repos. You can find it on github.
Step 1
Create a objective c file(.m file) and it's corresponding header file.
// Header file (We call it "ObjCFunc.h")
#ifndef test2_ObjCFunc_h
#define test2_ObjCFunc_h
@interface myClass :NSObject
-(void)hello:(int)num1;
@end
#endif
// Corresponding Objective C file(We call it "ObjCFunc.m")
#import <Foundation/Foundation.h>
#include "ObjCFunc.h"
@implementation myClass
//Your objective c code here....
-(void)hello:(int)num1
{
NSLog(@"Hello!!!!!!");
}
@end
Step 2
Now we will implement a c++ function to call the objective c function that we just created! So for that we will define a .mm file and its corresponding header file(".mm" file is to be used here because we will be able to use both Objective C and C++ coding in the file)
//Header file(We call it "ObjCCall.h")
#ifndef __test2__ObjCCall__
#define __test2__ObjCCall__
#include <stdio.h>
class ObjCCall
{
public:
static void objectiveC_Call(); //We define a static method to call the function directly using the class_name
};
#endif /* defined(__test2__ObjCCall__) */
//Corresponding Objective C++ file(We call it "ObjCCall.mm")
#include "ObjCCall.h"
#include "ObjCFunc.h"
void ObjCCall::objectiveC_Call()
{
//Objective C code calling.....
myClass *obj=[[myClass alloc]init]; //Allocating the new object for the objective C class we created
[obj hello:(100)]; //Calling the function we defined
}
Step 3
Calling the c++ function(which actually calls the objective c method)
#ifndef __HELLOWORLD_SCENE_H__
#define __HELLOWORLD_SCENE_H__
#include "cocos2d.h"
#include "ObjCCall.h"
class HelloWorld : public cocos2d::Layer
{
public:
// there's no 'id' in cpp, so we recommend returning the class instance pointer
static cocos2d::Scene* createScene();
// Here's a difference. Method 'init' in cocos2d-x returns bool, instead of returning 'id' in cocos2d-iphone
virtual bool init();
// a selector callback
void menuCloseCallback(cocos2d::Ref* pSender);
void ObCCall(); //definition
// implement the "static create()" method manually
CREATE_FUNC(HelloWorld);
};
#endif // __HELLOWORLD_SCENE_H__
//Final call
#include "HelloWorldScene.h"
#include "ObjCCall.h"
USING_NS_CC;
Scene* HelloWorld::createScene()
{
// 'scene' is an autorelease object
auto scene = Scene::create();
// 'layer' is an autorelease object
auto layer = HelloWorld::create();
// add layer as a child to scene
scene->addChild(layer);
// return the scene
return scene;
}
// on "init" you need to initialize your instance
bool HelloWorld::init()
{
//////////////////////////////
// 1. super init first
if ( !Layer::init() )
{
return false;
}
Size visibleSize = Director::getInstance()->getVisibleSize();
Vec2 origin = Director::getInstance()->getVisibleOrigin();
/////////////////////////////
// 2. add a menu item with "X" image, which is clicked to quit the program
// you may modify it.
// add a "close" icon to exit the progress. it's an autorelease object
auto closeItem = MenuItemImage::create(
"CloseNormal.png",
"CloseSelected.png",
CC_CALLBACK_1(HelloWorld::menuCloseCallback, this));
closeItem->setPosition(Vec2(origin.x + visibleSize.width - closeItem->getContentSize().width/2 ,
origin.y + closeItem->getContentSize().height/2));
// create menu, it's an autorelease object
auto menu = Menu::create(closeItem, NULL);
menu->setPosition(Vec2::ZERO);
this->addChild(menu, 1);
/////////////////////////////
// 3. add your codes below...
// add a label shows "Hello World"
// create and initialize a label
auto label = Label::createWithTTF("Hello World", "fonts/Marker Felt.ttf", 24);
// position the label on the center of the screen
label->setPosition(Vec2(origin.x + visibleSize.width/2,
origin.y + visibleSize.height - label- >getContentSize().height));
// add the label as a child to this layer
this->addChild(label, 1);
// add "HelloWorld" splash screen"
auto sprite = Sprite::create("HelloWorld.png");
// position the sprite on the center of the screen
sprite->setPosition(Vec2(visibleSize.width/2 + origin.x, visibleSize.height/2 + origin.y));
// add the sprite as a child to this layer
this->addChild(sprite, 0);
this->ObCCall(); //first call
return true;
}
void HelloWorld::ObCCall() //Definition
{
ObjCCall::objectiveC_Call(); //Final Call
}
void HelloWorld::menuCloseCallback(Ref* pSender)
{
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WP8) || (CC_TARGET_PLATFORM == CC_PLATFORM_WINRT)
MessageBox("You pressed the close button. Windows Store Apps do not implement a close button.","Alert");
return;
#endif
Director::getInstance()->end();
#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
exit(0);
#endif
}
Hope this works!
Another option is CSVLogger: https://keras.io/callbacks/#csvlogger. It creates a csv file appending the result of each epoch. Even if you interrupt training, you get to see how it evolved.
Your question is already answered here :
Basically, rt.jar contains all of the compiled class files for the base Java Runtime ("rt") Environment. Normally, javac should know the path to this file
Also, a good link on what happens if we try to include our class file in rt.jar.
1) Put the apk on your SDKCard and install file browsers like "Estrongs File Explorer", "Easy Installer", etc...
https://market.android.com/details?id=com.estrongs.android.pop&feature=search_result https://market.android.com/details?id=mobi.infolife.installer&feature=search_result
2) Go to your mobile settings - applications- debuging - and thick "USB debugging"
For 100% viewport height use:
overflow: auto;
max-height: 100vh;
IF
is a PL/SQL construct. If you are executing a query, you are using SQL not PL/SQL.
In SQL, you can use a CASE
statement in the query itself
SELECT DISTINCT a.item,
(CASE WHEN b.salesman = 'VIKKIE'
THEN 'ICKY'
ELSE b.salesman
END),
NVL(a.manufacturer,'Not Set') Manufacturer
FROM inv_items a,
arv_sales b
WHERE a.co = '100'
AND a.co = b.co
AND A.ITEM_KEY = b.item_key
AND a.item LIKE 'BX%'
AND b.salesman in ('01','15')
AND trans_date BETWEEN to_date('010113','mmddrr')
and to_date('011713','mmddrr')
ORDER BY a.item
Since you aren't doing any aggregation, you don't want a GROUP BY
in your query. Are you really sure that you need the DISTINCT
? People often throw that in haphazardly or add it when they are missing a join condition rather than considering whether it is really necessary to do the extra work to identify and remove duplicates.
it looks like you need a rule very similar to your checked rule
#ck-button input:hover + span {
background-color:#191;
color:#fff;
}
and for hover and clicked state:
#ck-button input:checked:hover + span {
background-color:#c11;
color:#fff;
}
the order is important though.
To request a new password for the postgres user (without showing it in the command):
sudo -u postgres psql -c "\password"
Try this, it will convert True into 1 and False into 0:
data.frame$column.name.num <- as.numeric(data.frame$column.name)
Then you can convert into factor if you want:
data.frame$column.name.num.factor <- as .factor(data.frame$column.name.num)
you can try typescript's For
:
selectChildren(data , $event){
let parentChecked : boolean = data.checked;
for(let o of this.hierarchicalData){
for(let child of o){
child.checked = parentChecked;
}
}
}
you should use a viewPager to use viewPager.setCurrentItem()
viewPager.setCurrentItem(n);
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
If it is just viewing in tree view,One workaround is to use the Explorer in Notepad++ or any other tools.
The subclass's overriding method can only throw multiple checked exceptions that are subclasses of the superclass's method's checked exception, but cannot throw multiple checked exceptions that are unrelated to the superclass's method's checked exception
You could also use indexOf instead to do this
var i = review.indexOf('\u2022 \u2022 \u2022');
if (i !== -1) review.splice(i,1);
.xlsx
loads 4 times longer than .xlsb
and saves 2 times longer and has 1.5 times a bigger file. I tested this on a generated worksheet with 10'000 rows * 1'000 columns = 10'000'000 (10^7) cells of simple chained =…+1
formulas:
?--------------------------------?
¦ ¦ .xlsx ¦ .xlsb ¦
¦--------------+--------+--------¦
¦ loading time ¦ 165s ¦ 43s ¦
+--------------+--------+--------¦
¦ saving time ¦ 115s ¦ 61s ¦
+--------------+--------+--------¦
¦ file size ¦ 91 MB ¦ 65 MB ¦
?--------------------------------?
(Hardware: Core2Duo 2.3 GHz, 4 GB RAM, 5.400 rpm SATA II HD; Windows 7, under somewhat heavy load from other processes.)
Beside this, there should be no differences. More precisely,
both formats support exactly the same feature set
cites this blog post from 2006-08-29. So maybe the info that .xlsb
does not support Ribbon code is newer than the upper citation, but I figure that forum source of yours is just wrong. When cracking open the binary file, it seems to condensedly mimic the OOXML file structure 1-to-1: Blog article from 2006-08-07
Because the URL isn't on the same domain as your website, you need to use JSONP.
For example: (In jQuery):
$.getJSON(
'http://soundcloud.com/oembed?url=http%3A//soundcloud.com/forss/flickermood&format=js&callback=?',
function(data) { ... }
);
This works by creating a <script>
tag like this one:
<script src="http://soundcloud.com/oembed?url=http%3A//soundcloud.com/forss/flickermood&format=js&callback=someFunction" type="text/javascript"></script>
Their server then emits Javascript that calls someFunction
with the data to retrieve.
`someFunction is an internal callback generated by jQuery that then calls your callback.
Quick one in TSQL
SELECT a.*
FROM emails a
INNER JOIN
(SELECT email,
MIN(id) as id
FROM emails
GROUP BY email
) AS b
ON a.email = b.email
AND a.id = b.id;
Using @angular/forms
when you use a <form>
tag it automatically creates a FormGroup
.
For every contained ngModel
tagged <input>
it will create a FormControl
and add it into the FormGroup
created above; this FormControl
will be named into the FormGroup
using attribute name
.
Example:
<form #f="ngForm">
<input type="text" [(ngModel)]="firstFieldVariable" name="firstField">
<span>{{ f.controls['firstField']?.value }}</span>
</form>
Said this, the answer to your question follows.
When you mark it as standalone: true
this will not happen (it will not be added to the FormGroup
).
Reference: https://github.com/angular/angular/issues/9230#issuecomment-228116474
Try this script to get your browser language
<script type="text/javascript">_x000D_
var userLang = navigator.language || navigator.userLanguage; _x000D_
alert ("The language is: " + userLang);_x000D_
</script>
_x000D_
Cheers
"MyTable".DefaultView.RowFilter = " LIKE '%" + textBox1.Text + "%'"; this.dataGridView1.DataSource = "MyTable".DefaultView;
How about the relation to the database connections and the Datatable? And how should i set the DefaultView correct?
I use this code to get the data out:
con = new System.Data.SqlServerCe.SqlCeConnection();
con.ConnectionString = "Data Source=C:\\Users\\mhadj\\Documents\\Visual Studio 2015\\Projects\\data_base_test_2\\Sample.sdf";
con.Open();
DataTable dt = new DataTable();
adapt = new System.Data.SqlServerCe.SqlCeDataAdapter("select * from tbl_Record", con);
adapt.Fill(dt);
dataGridView1.DataSource = dt;
con.Close();
For quick reference, all the following methods will add a new key 'a' if it does not exist already or it will update the existing key value pair with the new value offered:
data['a']=1
data.update({'a':1})
data.update(dict(a=1))
data.update(a=1)
You can also mixing them up, for example, if key 'c' is in data but 'd' is not, the following method will updates 'c' and adds 'd'
data.update({'c':3,'d':4})
I had the same problem. I changed the Version of Assembly in AssemblyInfo.cs
in the Properties Folder. But, I don't have any idea why this problem happened. Maybe the compiler doesn't understand that this dll
is newer, just changing the version of Assembly.
There are some "catchy interview" questions, such as why you get equals! if you execute the below piece of code.
String s1 = "testString";
String s2 = "testString";
if(s1 == s2) System.out.println("equals!");
If you want to compare Strings you should use equals()
. The above will print equals because the testString
is already interned for you by the compiler. You can intern the strings yourself using intern method as is shown in previous answers....
EDIT: http://jsfiddle.net/nCFGL/223/ My Example.
You should be able to like follows:
var pieData = [{
value: 30,
color: "#F38630",
label: 'Sleep',
labelColor: 'white',
labelFontSize: '16'
},
...
];
Include the Chart.js located at:
See Time Complexity. The python dict is a hashmap, its worst case is therefore O(n) if the hash function is bad and results in a lot of collisions. However that is a very rare case where every item added has the same hash and so is added to the same chain which for a major Python implementation would be extremely unlikely. The average time complexity is of course O(1).
The best method would be to check and take a look at the hashs of the objects you are using. The CPython Dict uses int PyObject_Hash (PyObject *o) which is the equivalent of hash(o)
.
After a quick check, I have not yet managed to find two tuples that hash to the same value, which would indicate that the lookup is O(1)
l = []
for x in range(0, 50):
for y in range(0, 50):
if hash((x,y)) in l:
print "Fail: ", (x,y)
l.append(hash((x,y)))
print "Test Finished"
CodePad (Available for 24 hours)
For impatient, a quick way to disable python unverified HTTPS warning:
export PYTHONWARNINGS="ignore:Unverified HTTPS request"
Please don´t forget to check the obj parameter against null
when overriding Equals()
.
And also compare the type.
public override bool Equals(object obj)
{
Foo fooItem = obj as Foo;
if (fooItem == null)
{
return false;
}
return fooItem.FooId == this.FooId;
}
The reason for this is: Equals
must return false on comparison to null
. See also http://msdn.microsoft.com/en-us/library/bsc2ak47.aspx
The trick that worked for me was to remove Integrated Security
from my connection string and add a regular User ID=userName; Password=password
your connection string in the App.config
of your libruary might not be using integrated security but the one created in Web.config
is!
Try this:
$('#myAnchor')[0].click();
It works for me.
This might serve as a good starting point for moving/rotating/zooming a camera with mouse/trackpad (in typescript):
class CameraControl {
zoomMode: boolean = false
press: boolean = false
sensitivity: number = 0.02
constructor(renderer: Three.Renderer, public camera: Three.PerspectiveCamera, updateCallback:() => void){
renderer.domElement.addEventListener('mousemove', event => {
if(!this.press){ return }
if(event.button == 0){
camera.position.y -= event.movementY * this.sensitivity
camera.position.x -= event.movementX * this.sensitivity
} else if(event.button == 2){
camera.quaternion.y -= event.movementX * this.sensitivity/10
camera.quaternion.x -= event.movementY * this.sensitivity/10
}
updateCallback()
})
renderer.domElement.addEventListener('mousedown', () => { this.press = true })
renderer.domElement.addEventListener('mouseup', () => { this.press = false })
renderer.domElement.addEventListener('mouseleave', () => { this.press = false })
document.addEventListener('keydown', event => {
if(event.key == 'Shift'){
this.zoomMode = true
}
})
document.addEventListener('keyup', event => {
if(event.key == 'Shift'){
this.zoomMode = false
}
})
renderer.domElement.addEventListener('mousewheel', event => {
if(this.zoomMode){
camera.fov += event.wheelDelta * this.sensitivity
camera.updateProjectionMatrix()
} else {
camera.position.z += event.wheelDelta * this.sensitivity
}
updateCallback()
})
}
}
drop it in like:
this.cameraControl = new CameraControl(renderer, camera, () => {
// you might want to rerender on camera update if you are not rerendering all the time
window.requestAnimationFrame(() => renderer.render(scene, camera))
})
Controls:
Additionally:
If you want to kinda zoom by changing the 'distance' (along yz) instead of changing field-of-view you can bump up/down camera's position y and z while keeping the ratio of position's y and z unchanged like:
// in mousewheel event listener in zoom mode
const ratio = camera.position.y / camera.position.z
camera.position.y += (event.wheelDelta * this.sensitivity * ratio)
camera.position.z += (event.wheelDelta * this.sensitivity)
Try this...
$('p').append('<span id="add_here">new-dynamic-text</span>');
OR if there is an existing span, do this.
$('p').children('span').text('new-dynamic-text');
I don't know of any JVM that actually checks the JAVA_OPTS
environment variable. Usually this is used in scripts which launch the JVM and they usually just add it to the java
command-line.
The key thing to understand here is that arguments to java
that come before the -jar analyse.jar
bit will only affect the JVM and won't be passed along to your program. So, modifying the java
line in your script to:
java $JAVA_OPTS -jar analyse.jar $*
Should "just work".
This SO thread will solve your problem. Solution in short:
$url = 'http://www.google.co.in/intl/en_com/images/srpr/logo1w.png';
$img = '/my/folder/my_image.gif';
file_put_contents($img, file_get_contents($url));
In my case, the error was just fatal: refusing to merge unrelated histories
on every try, especially the first pull request after remotely adding a Git repository.
Using the --allow-unrelated-histories
flag worked with a pull request in this way:
git pull origin branchname --allow-unrelated-histories
On any linux system with the NVIDIA driver installed and loaded into the kernel, you can execute:
cat /proc/driver/nvidia/version
to get the version of the currently loaded NVIDIA kernel module, for example:
$ cat /proc/driver/nvidia/version
NVRM version: NVIDIA UNIX x86_64 Kernel Module 304.54 Sat Sep 29 00:05:49 PDT 2012
GCC version: gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)
table
{
border-collapse: collapse;
}
will collapse all borders separating the table columns...
or try
<table cellspacing="0" style="border-spacing: 0;">
do all cell-spacing to 0 and border spacing 0 to achieve same.
have a fun!
class Car extends Vehicle {
protected int numberOfSeats = 1;
public int getNumberOfSeats() {
return this.numberOfSeats;
}
public void printNumberOfSeats() {
// return this.numberOfSeats;
System.out.println(numberOfSeats);
}
}
//Parent class
class Vehicle {
protected String licensePlate = null;
public void setLicensePlate(String license) {
this.licensePlate = license;
System.out.println(licensePlate);
}
public static void main(String []args) {
Vehicle c = new Vehicle();
c.setLicensePlate("LASKF12341");
//Used downcasting to call the child method from the parent class.
//Downcasting = It’s the casting from a superclass to a subclass.
Vehicle d = new Car();
((Car) d).printNumberOfSeats();
}
}
I personally prefer using scrapy and selenium and dockerizing both in separate containers. This way you can install both with minimal hassle and crawl modern websites that almost all contain javascript in one form or another. Here's an example:
Use the scrapy startproject
to create your scraper and write your spider, the skeleton can be as simple as this:
import scrapy
class MySpider(scrapy.Spider):
name = 'my_spider'
start_urls = ['https://somewhere.com']
def start_requests(self):
yield scrapy.Request(url=self.start_urls[0])
def parse(self, response):
# do stuff with results, scrape items etc.
# now were just checking everything worked
print(response.body)
The real magic happens in the middlewares.py. Overwrite two methods in the downloader middleware, __init__
and process_request
, in the following way:
# import some additional modules that we need
import os
from copy import deepcopy
from time import sleep
from scrapy import signals
from scrapy.http import HtmlResponse
from selenium import webdriver
class SampleProjectDownloaderMiddleware(object):
def __init__(self):
SELENIUM_LOCATION = os.environ.get('SELENIUM_LOCATION', 'NOT_HERE')
SELENIUM_URL = f'http://{SELENIUM_LOCATION}:4444/wd/hub'
chrome_options = webdriver.ChromeOptions()
# chrome_options.add_experimental_option("mobileEmulation", mobile_emulation)
self.driver = webdriver.Remote(command_executor=SELENIUM_URL,
desired_capabilities=chrome_options.to_capabilities())
def process_request(self, request, spider):
self.driver.get(request.url)
# sleep a bit so the page has time to load
# or monitor items on page to continue as soon as page ready
sleep(4)
# if you need to manipulate the page content like clicking and scrolling, you do it here
# self.driver.find_element_by_css_selector('.my-class').click()
# you only need the now properly and completely rendered html from your page to get results
body = deepcopy(self.driver.page_source)
# copy the current url in case of redirects
url = deepcopy(self.driver.current_url)
return HtmlResponse(url, body=body, encoding='utf-8', request=request)
Dont forget to enable this middlware by uncommenting the next lines in the settings.py file:
DOWNLOADER_MIDDLEWARES = {
'sample_project.middlewares.SampleProjectDownloaderMiddleware': 543,}
Next for dockerization. Create your Dockerfile
from a lightweight image (I'm using python Alpine here), copy your project directory to it, install requirements:
# Use an official Python runtime as a parent image
FROM python:3.6-alpine
# install some packages necessary to scrapy and then curl because it's handy for debugging
RUN apk --update add linux-headers libffi-dev openssl-dev build-base libxslt-dev libxml2-dev curl python-dev
WORKDIR /my_scraper
ADD requirements.txt /my_scraper/
RUN pip install -r requirements.txt
ADD . /scrapers
And finally bring it all together in docker-compose.yaml
:
version: '2'
services:
selenium:
image: selenium/standalone-chrome
ports:
- "4444:4444"
shm_size: 1G
my_scraper:
build: .
depends_on:
- "selenium"
environment:
- SELENIUM_LOCATION=samplecrawler_selenium_1
volumes:
- .:/my_scraper
# use this command to keep the container running
command: tail -f /dev/null
Run docker-compose up -d
. If you're doing this the first time it will take a while for it to fetch the latest selenium/standalone-chrome and the build your scraper image as well.
Once it's done, you can check that your containers are running with docker ps
and also check that the name of the selenium container matches that of the environment variable that we passed to our scraper container (here, it was SELENIUM_LOCATION=samplecrawler_selenium_1
).
Enter your scraper container with docker exec -ti YOUR_CONTAINER_NAME sh
, the command for me was docker exec -ti samplecrawler_my_scraper_1 sh
, cd into the right directory and run your scraper with scrapy crawl my_spider
.
The entire thing is on my github page and you can get it from here
CGFloat is a regular float on 32-bit systems and a double on 64-bit systems
typedef float CGFloat;// 32-bit
typedef double CGFloat;// 64-bit
So you won't get any performance penalty.
Use type = "button"
instead of "submit"
, then add an onClick
handler for it.
For example:
<input type="button" value="Increment" onClick="myVar++;" />
It sounds to me like your column isn't a date column but a text column (varchar/nvarchar etc). You should store it in the database as a date, not a string.
If you have to store it as a string for some reason, store it in a sortable format e.g. yyyy/MM/dd.
As najmeddine shows, you could convert the column on every access, but I would try very hard not to do that. It will make the database do a lot more work - it won't be able to keep appropriate indexes etc. Whenever possible, store the data in a type appropriate to the data itself.
Try this,
select to_char(sysdate,'dd') from dual; -> 08 (date)
select to_char(sysdate,'mm') from dual; -> 02 (month in number)
select to_char(sysdate,'yyyy') from dual; -> 2013 (Full year)
The Syabru Nagios JMX plugin is meant to be used from Nagios, but doesn't require Nagios and is very convenient for command-line use:
~$ ./check_jmx -U service:jmx:rmi:///jndi/rmi://localhost:1099/JMXConnector --username myuser --password mypass -O java.lang:type=Memory -A HeapMemoryUsage -K used
JMX OK - HeapMemoryUsage.used = 445012360 | 'HeapMemoryUsage used'=445012360;;;;
Regarding Nambari's answer there was a mistake. If you compare values using double equal sign == program will never reach compare method, unless someone will use new keyword to create String object which is not the best practice. This might be a bit better solution:
public int compare(String o1, String o2) {
if (o1 == null && o2 == null){return 0;}
if (o1 == null) { return -1;}
if (o2 == null) { return 1;}
return o1.compareTo(o2);
}
P.S. Thanks for comments ;)
I have been using makeaclickablemap for my province maps for some time now and it turned out to be a really good fit.
I blogged about how to consume a WCF service using jQuery:
http://yoavniran.wordpress.com/2009/08/02/creating-a-webservice-proxy-with-jquery/
The post shows how to create a service proxy straight up in javascript.
You can simply get week number by getting minimum week number of month and deduct it from week number. Suppose you have a table with dates
select
emp_id, dt , datepart(wk,dt) - (select min(datepart(wk,dt))
from
workdates ) + 1 from workdates
This worked for me on my Oracle database:
SELECT 'GRANT SELECT, insert, update, delete ON mySchema.' || TABLE_NAME || ' to myUser;'
FROM user_tables
where table_name like 'myTblPrefix%'
Then, copy the results, paste them into your editor, then run them like a script.
You could also write a script and use "Execute Immediate" to run the generated SQL if you don't want the extra copy/paste steps.
Hey I had the same problem. I tried to convert '2017-02-20 12:15:32' varchar to a date with TO_DATE('2017-02-20 12:15:32','YYYY-MM-DD HH24:MI:SS')
and all I received was 2017-02-20 the time disappeared
My solution was to use TO_TIMESTAMP('2017-02-20 12:15:32','YYYY-MM-DD HH24:MI:SS')
now the time doesn't disappear.
The simplest way would be to use https://github.com/mitchellh/mapstructure
import "github.com/mitchellh/mapstructure"
mapstructure.Decode(myData, &result)
If you want to do it yourself, you could do something like this:
http://play.golang.org/p/tN8mxT_V9h
func SetField(obj interface{}, name string, value interface{}) error {
structValue := reflect.ValueOf(obj).Elem()
structFieldValue := structValue.FieldByName(name)
if !structFieldValue.IsValid() {
return fmt.Errorf("No such field: %s in obj", name)
}
if !structFieldValue.CanSet() {
return fmt.Errorf("Cannot set %s field value", name)
}
structFieldType := structFieldValue.Type()
val := reflect.ValueOf(value)
if structFieldType != val.Type() {
return errors.New("Provided value type didn't match obj field type")
}
structFieldValue.Set(val)
return nil
}
type MyStruct struct {
Name string
Age int64
}
func (s *MyStruct) FillStruct(m map[string]interface{}) error {
for k, v := range m {
err := SetField(s, k, v)
if err != nil {
return err
}
}
return nil
}
func main() {
myData := make(map[string]interface{})
myData["Name"] = "Tony"
myData["Age"] = int64(23)
result := &MyStruct{}
err := result.FillStruct(myData)
if err != nil {
fmt.Println(err)
}
fmt.Println(result)
}
The -i
option is the one that you want:
curl -i http://localhost
-i, --include Include protocol headers in the output (H/F)
Alternatively you can use the verbose option:
curl -v http://localhost
-v, --verbose Make the operation more talkative
You should be able to alias them and use as subqueries (part of the reason your first effort was invalid was because the first select had two columns (ID and ReceivedDate) but your second only had one (ID) - also, Type is a reserved word in SQL Server, and can't be used as you had it as a column name):
declare @Tbl1 table(ID int, ReceivedDate datetime, ItemType Varchar(10))
declare @Tbl2 table(ID int, ReceivedDate datetime, ItemType Varchar(10))
insert into @Tbl1 values(1, '20010101', 'Type_1')
insert into @Tbl1 values(2, '20010102', 'Type_1')
insert into @Tbl1 values(3, '20010103', 'Type_3')
insert into @Tbl2 values(10, '20010101', 'Type_2')
insert into @Tbl2 values(20, '20010102', 'Type_3')
insert into @Tbl2 values(30, '20010103', 'Type_2')
SELECT a.ID, a.ReceivedDate FROM
(select top 2 t1.ID, t1.ReceivedDate
from @tbl1 t1
where t1.ItemType = 'TYPE_1'
order by ReceivedDate desc
) a
union
SELECT b.ID, b.ReceivedDate FROM
(select top 2 t2.ID, t2.ReceivedDate
from @tbl2 t2
where t2.ItemType = 'TYPE_2'
order by t2.ReceivedDate desc
) b
Here is a coffeescript version that worked for me.
$(document).on 'hidden.bs.modal', (e) ->
target = $(e.target)
target.removeData('bs.modal').find(".modal-content").html('')
There is exactly one reason why the following is preferred:
with open('filename.txt') as fp:
for line in fp:
print line
We are all spoiled by CPython's relatively deterministic reference-counting scheme for garbage collection. Other, hypothetical implementations of Python will not necessarily close the file "quickly enough" without the with
block if they use some other scheme to reclaim memory.
In such an implementation, you might get a "too many files open" error from the OS if your code opens files faster than the garbage collector calls finalizers on orphaned file handles. The usual workaround is to trigger the GC immediately, but this is a nasty hack and it has to be done by every function that could encounter the error, including those in libraries. What a nightmare.
Or you could just use the with
block.
(Stop reading now if are only interested in the objective aspects of the question.)
Why isn't that included in the iterator protocol for file objects?
This is a subjective question about API design, so I have a subjective answer in two parts.
On a gut level, this feels wrong, because it makes iterator protocol do two separate things—iterate over lines and close the file handle—and it's often a bad idea to make a simple-looking function do two actions. In this case, it feels especially bad because iterators relate in a quasi-functional, value-based way to the contents of a file, but managing file handles is a completely separate task. Squashing both, invisibly, into one action, is surprising to humans who read the code and makes it more difficult to reason about program behavior.
Other languages have essentially come to the same conclusion. Haskell briefly flirted with so-called "lazy IO" which allows you to iterate over a file and have it automatically closed when you get to the end of the stream, but it's almost universally discouraged to use lazy IO in Haskell these days, and Haskell users have mostly moved to more explicit resource management like Conduit which behaves more like the with
block in Python.
On a technical level, there are some things you may want to do with a file handle in Python which would not work as well if iteration closed the file handle. For example, suppose I need to iterate over the file twice:
with open('filename.txt') as fp:
for line in fp:
...
fp.seek(0)
for line in fp:
...
While this is a less common use case, consider the fact that I might have just added the three lines of code at the bottom to an existing code base which originally had the top three lines. If iteration closed the file, I wouldn't be able to do that. So keeping iteration and resource management separate makes it easier to compose chunks of code into a larger, working Python program.
Composability is one of the most important usability features of a language or API.
You can abort a task like a thread if you can cause the task to be created on its own thread and call Abort
on its Thread
object. By default, a task runs on a thread pool thread or the calling thread - neither of which you typically want to abort.
To ensure the task gets its own thread, create a custom scheduler derived from TaskScheduler
. In your implementation of QueueTask
, create a new thread and use it to execute the task. Later, you can abort the thread, which will cause the task to complete in a faulted state with a ThreadAbortException
.
Use this task scheduler:
class SingleThreadTaskScheduler : TaskScheduler
{
public Thread TaskThread { get; private set; }
protected override void QueueTask(Task task)
{
TaskThread = new Thread(() => TryExecuteTask(task));
TaskThread.Start();
}
protected override IEnumerable<Task> GetScheduledTasks() => throw new NotSupportedException(); // Unused
protected override bool TryExecuteTaskInline(Task task, bool taskWasPreviouslyQueued) => throw new NotSupportedException(); // Unused
}
Start your task like this:
var scheduler = new SingleThreadTaskScheduler();
var task = Task.Factory.StartNew(action, cancellationToken, TaskCreationOptions.LongRunning, scheduler);
Later, you can abort with:
scheduler.TaskThread.Abort();
Note that the caveat about aborting a thread still applies:
The
Thread.Abort
method should be used with caution. Particularly when you call it to abort a thread other than the current thread, you do not know what code has executed or failed to execute when the ThreadAbortException is thrown, nor can you be certain of the state of your application or any application and user state that it is responsible for preserving. For example, callingThread.Abort
may prevent static constructors from executing or prevent the release of unmanaged resources.
final long startTime = System.currentTimeMillis();
for (int i = 0; i < length; i++) {
// Do something
}
final long endTime = System.currentTimeMillis();
System.out.println("Total execution time: " + (endTime - startTime));
Here is a code block / example of some list filtering using three different methods that I put together to show Lambdas and LINQ based list filtering.
#region List Filtering
static void Main(string[] args)
{
ListFiltering();
Console.ReadLine();
}
private static void ListFiltering()
{
var PersonList = new List<Person>();
PersonList.Add(new Person() { Age = 23, Name = "Jon", Gender = "M" }); //Non-Constructor Object Property Initialization
PersonList.Add(new Person() { Age = 24, Name = "Jack", Gender = "M" });
PersonList.Add(new Person() { Age = 29, Name = "Billy", Gender = "M" });
PersonList.Add(new Person() { Age = 33, Name = "Bob", Gender = "M" });
PersonList.Add(new Person() { Age = 45, Name = "Frank", Gender = "M" });
PersonList.Add(new Person() { Age = 24, Name = "Anna", Gender = "F" });
PersonList.Add(new Person() { Age = 29, Name = "Sue", Gender = "F" });
PersonList.Add(new Person() { Age = 35, Name = "Sally", Gender = "F" });
PersonList.Add(new Person() { Age = 36, Name = "Jane", Gender = "F" });
PersonList.Add(new Person() { Age = 42, Name = "Jill", Gender = "F" });
//Logic: Show me all males that are less than 30 years old.
Console.WriteLine("");
//Iterative Method
Console.WriteLine("List Filter Normal Way:");
foreach (var p in PersonList)
if (p.Gender == "M" && p.Age < 30)
Console.WriteLine(p.Name + " is " + p.Age);
Console.WriteLine("");
//Lambda Filter Method
Console.WriteLine("List Filter Lambda Way");
foreach (var p in PersonList.Where(p => (p.Gender == "M" && p.Age < 30))) //.Where is an extension method
Console.WriteLine(p.Name + " is " + p.Age);
Console.WriteLine("");
//LINQ Query Method
Console.WriteLine("List Filter LINQ Way:");
foreach (var v in from p in PersonList
where p.Gender == "M" && p.Age < 30
select new { p.Name, p.Age })
Console.WriteLine(v.Name + " is " + v.Age);
}
private class Person
{
public Person() { }
public int Age { get; set; }
public string Name { get; set; }
public string Gender { get; set; }
}
#endregion
Presumably you mean heap from a memory allocation point of view, not from a data structure point of view (the term has multiple meanings).
A very simple explanation is that the heap is the portion of memory where dynamically allocated memory resides (i.e. memory allocated via malloc
). Memory allocated from the heap will remain allocated until one of the following occurs:
free
'dIf all references to allocated memory are lost (e.g. you don't store a pointer to it anymore), you have what is called a memory leak. This is where the memory has still been allocated, but you have no easy way of accessing it anymore. Leaked memory cannot be reclaimed for future memory allocations, but when the program ends the memory will be free'd up by the operating system.
Contrast this with stack memory which is where local variables (those defined within a method) live. Memory allocated on the stack generally only lives until the function returns (there are some exceptions to this, e.g. static local variables).
You can find more information about the heap in this article.
img
tag but without background-image
This solution retains the img
tag so that we do not lose the ability to drag or right-click to save the image but without background-image
just center and crop with css.
Maintain the aspect ratio fine except in very hight images. (check the link)
Markup
<div class="center-cropped">
<img src="http://placehold.it/200x150" alt="" />
</div>
? CSS
div.center-cropped {
width: 100px;
height: 100px;
overflow:hidden;
}
div.center-cropped img {
height: 100%;
min-width: 100%;
left: 50%;
position: relative;
transform: translateX(-50%);
}
You can try this to get infos like:
git config --get user.name
git config --get user.email
There's nothing like "first name" and "last name" for the user.
Hope this will help.
To comment out a block of code in the Pycharm IDE:
Just for others getting this error and looking for info on it, it is also thrown if you happen to pass a binding parameter and then never use it. I couldn't really find that stated clearly anywhere but had to prove it through trial and error.
opacity
will make both text and background transparent. Use a semi-transparent background-color instead, by using a rgba()
value for example. Works on IE8+
It seams that missing dependency of python-dev, install python-dev and then try to install seaborn, if you are using Ubuntu:
sudo apt-get install python-dev -y
pip install seaborn
Try to use ES6 syntax of set timeout. Normal javascript setTimeout() won't work in react js
setTimeout(
() => this.setState({ position: 100 }),
5000
);
The traditional for loop in Objective-C is inherited from standard C and takes the following form:
for (/* Instantiate local variables*/ ; /* Condition to keep looping. */ ; /* End of loop expressions */)
{
// Do something.
}
For example, to print the numbers from 1 to 10, you could use the for loop:
for (int i = 1; i <= 10; i++)
{
NSLog(@"%d", i);
}
On the other hand, the for in loop was introduced in Objective-C 2.0, and is used to loop through objects in a collection, such as an NSArray instance. For example, to loop through a collection of NSString objects in an NSArray and print them all out, you could use the following format.
for (NSString* currentString in myArrayOfStrings)
{
NSLog(@"%@", currentString);
}
This is logically equivilant to the following traditional for loop:
for (int i = 0; i < [myArrayOfStrings count]; i++)
{
NSLog(@"%@", [myArrayOfStrings objectAtIndex:i]);
}
The advantage of using the for in loop is firstly that it's a lot cleaner code to look at. Secondly, the Objective-C compiler can optimize the for in loop so as the code runs faster than doing the same thing with a traditional for loop.
Hope this helps.
You should always use following syntax to rethrow an exception, else you'll stomp the stack trace:
throw;
If you print the trace resulting from "throw ex", you'll see that it ends on that statement and not at the real source of the exception.
Basically, it should be deemed a criminal offense to use "throw ex".
I have had a similar issue and understand that the following is the best solution:
<script>
var myvar = decodeURIComponent("<?php echo rawurlencode($myVarValue); ?>");
</script>
However, the link that micahwittman posted suggests that there are some minor encoding differences. PHP's rawurlencode()
function is supposed to comply with RFC 1738, while there appear to have been no such effort with Javascript's decodeURIComponent()
.
The following code send and recieve the current date and time from and to the server
//The following code is for the server application:
namespace Server
{
class Program
{
const int PORT_NO = 5000;
const string SERVER_IP = "127.0.0.1";
static void Main(string[] args)
{
//---listen at the specified IP and port no.---
IPAddress localAdd = IPAddress.Parse(SERVER_IP);
TcpListener listener = new TcpListener(localAdd, PORT_NO);
Console.WriteLine("Listening...");
listener.Start();
//---incoming client connected---
TcpClient client = listener.AcceptTcpClient();
//---get the incoming data through a network stream---
NetworkStream nwStream = client.GetStream();
byte[] buffer = new byte[client.ReceiveBufferSize];
//---read incoming stream---
int bytesRead = nwStream.Read(buffer, 0, client.ReceiveBufferSize);
//---convert the data received into a string---
string dataReceived = Encoding.ASCII.GetString(buffer, 0, bytesRead);
Console.WriteLine("Received : " + dataReceived);
//---write back the text to the client---
Console.WriteLine("Sending back : " + dataReceived);
nwStream.Write(buffer, 0, bytesRead);
client.Close();
listener.Stop();
Console.ReadLine();
}
}
}
//this is the code for the client
namespace Client
{
class Program
{
const int PORT_NO = 5000;
const string SERVER_IP = "127.0.0.1";
static void Main(string[] args)
{
//---data to send to the server---
string textToSend = DateTime.Now.ToString();
//---create a TCPClient object at the IP and port no.---
TcpClient client = new TcpClient(SERVER_IP, PORT_NO);
NetworkStream nwStream = client.GetStream();
byte[] bytesToSend = ASCIIEncoding.ASCII.GetBytes(textToSend);
//---send the text---
Console.WriteLine("Sending : " + textToSend);
nwStream.Write(bytesToSend, 0, bytesToSend.Length);
//---read back the text---
byte[] bytesToRead = new byte[client.ReceiveBufferSize];
int bytesRead = nwStream.Read(bytesToRead, 0, client.ReceiveBufferSize);
Console.WriteLine("Received : " + Encoding.ASCII.GetString(bytesToRead, 0, bytesRead));
Console.ReadLine();
client.Close();
}
}
}
I'm a relative novice compared to all the experts on Stack Overflow.
I have 2 versions of jupyter notebook running (one through a fresh Anaconda Navigator installation and one through ????). I think this is because Anaconda was installed as a local installation on my Mac (per Anaconda instructions).
I already had python 3.7 installed. After that, I used my terminal to open jupyter notebook and I think that it put another version globally onto my Mac.
However, I'm not sure because I'm just learning through trial and error!
I did the terminal command:
conda install -c anaconda certifi
(as directed above, but it didn't work.)
My python 3.7 is installed on OS Catalina10.15.3 in:
The certificate is at:
I tried to find the Install Certificate.command ... but couldn't find it through looking through the file structures...not in Applications...not in links above.
I finally installed it by finding it through Spotlight (as someone suggested above). And it double clicked automatically and installed ANOTHER certificate in the same folder as:
NONE of the above solved anything for me...I still got the same error.
So, I solved the problem by:
I can't tell you why this worked. But it solved the problem for me.
I just want to save someone the hassle next time. If someone can tell my why it worked, that would be terrific.
I didn't try the other terminal commands because of the 2 versions of jupyter notebook that I knew were a problem. I just don't know how to fix that.
Demo is here: jsfiddle
Try this :
//auto-hide-placeholder-text-upon-focus
if(!$.browser.webkit){
$("input").each(
function(){
$(this).data('holder',$(this).attr('placeholder'));
$(this).focusin(function(){
$(this).attr('placeholder','');
});
$(this).focusout(function(){
$(this).attr('placeholder',$(this).data('holder'));
});
});
}
With me the problem was the fact that matplotlib was using the wrong backend. I am using Debian Jessie.
In a console I did the following:
import matplotlib
matplotlib.get_backend()
The result was: 'agg', while this should be 'TkAgg'.
The solution was simple:
You need to add an additional parameter:
$http.get(url).then(
function(response) {
console.log('get',response)
},
function(data) {
// Handle error here
})
In my case I had a float value expected where xml had a null value so be sure to search for float and int data type in your xsd map
There was made some changes to the select2 events names (I think on v. 4 and later) so the '-' is changed into this ':'.
See the next examples:
$('#select').on("select2:select", function(e) {
//Do stuff
});
You can check all the events at the 'select2' plugin site: select2 Events
my @array = stat($filehandle);
The modification time is stored in Unix format in $array[9].
Or explicitly:
my ($dev, $ino, $mode, $nlink, $uid, $gid, $rdev, $size,
$atime, $mtime, $ctime, $blksize, $blocks) = stat($filepath);
0 dev Device number of filesystem
1 ino inode number
2 mode File mode (type and permissions)
3 nlink Number of (hard) links to the file
4 uid Numeric user ID of file's owner
5 gid Numeric group ID of file's owner
6 rdev The device identifier (special files only)
7 size Total size of file, in bytes
8 atime Last access time in seconds since the epoch
9 mtime Last modify time in seconds since the epoch
10 ctime inode change time in seconds since the epoch
11 blksize Preferred block size for file system I/O
12 blocks Actual number of blocks allocated
The epoch was at 00:00 January 1, 1970 GMT.
More information is in stat.
If something is a primary key, depending on your DB engine, the entire table gets sorted by the primary key. This means that lookups are much faster on the primary key because it doesn't have to do any dereferencing as it has to do with any other kind of index. Besides that, it's just theory.
I like the viewer of Total Commander because it only loads the text you actually see and so is very fast. Of course, it is just a text/hex viewer, so it won't format your XML, but you can use a basic text search.
The problem with the accepted answer is that it cannot signal failure. There's strtol
(STRing TO Long) which can. It's part of a larger family: wcstol
(Wide Character String TO Long, e.g. Unicode), strtoull
(TO Unsigned Long Long, 64bits+), wcstoull
, strtof
(TO Float) and wcstof
.
The key to this is examining any information you recieve and then display and/or use in code on the server. Get/Post form variables if they contain javascript that you store and later redisplay is a security risk. As are any thing that gets concatenated unexamined into a sql statement you run.
One potential gotcha to watch for are attacks that mess with the character encoding. For instance if I submit a form with utf-8 character set but you store and later display in iso-8859-1 latin with no translation then I might be able to sneak something past your validator. The easiest way to handle this is to always display and store in the same character set. utf-8 is usually a good choice. Never depend on the browser to do the right thing for you in this case. Set explicit character sets and examine the character sets you recieve and do a translation to the expected storage set before you validate it.
I had to play with the widths of my main containers:
html {
@media only screen and (orientation: portrait) and (max-width: 555px) {
transform: rotate(90deg);
width: calc(155%);
.content {
width: calc(155%);
}
}
}
From DateTimePicker:
First date:
DateTime first_date = new DateTime(DateTimePicker.Value.Year, DateTimePicker.Value.Month, 1);
Last date:
DateTime last_date = new DateTime(DateTimePicker.Value.Year, DateTimePicker.Value.Month, DateTime.DaysInMonth(DateTimePicker.Value.Year, DateTimePicker.Value.Month));
Android 4.4 (Kit Kat) does have a new sniffing capability for Bluetooth. You should give it a try.
If you don’t own a sniffing device however, you aren’t necessarily out of luck. In many cases we can obtain positive results with a new feature introduced in Android 4.4: the ability to capture all Bluetooth HCI packets and save them to a file.
When the Analyst has finished populating the capture file by running the application being tested, he can pull the file generated by Android into the external storage of the device and analyze it (with Wireshark, for example).
Once this setting is activated, Android will save the packet capture to /sdcard/btsnoop_hci.log to be pulled by the analyst and inspected.
Type the following in case /sdcard/
is not the right path on your particular device:
adb shell echo \$EXTERNAL_STORAGE
We can then open a shell and pull the file: $adb pull /sdcard/btsnoop_hci.log and inspect it with Wireshark, just like a PCAP collected by sniffing WiFi traffic for example, so it is very simple and well supported:
You can enable this by going to Settings->Developer Options, then checking the box next to "Bluetooth HCI Snoop Log."
You can use GROUP BY SalesOrderID
. The difference is, with GROUP BY you can only have the aggregated values for the columns that are not included in GROUP BY.
In contrast, using windowed aggregate functions instead of GROUP BY, you can retrieve both aggregated and non-aggregated values. That is, although you are not doing that in your example query, you could retrieve both individual OrderQty
values and their sums, counts, averages etc. over groups of same SalesOrderID
s.
Here's a practical example of why windowed aggregates are great. Suppose you need to calculate what percent of a total every value is. Without windowed aggregates you'd have to first derive a list of aggregated values and then join it back to the original rowset, i.e. like this:
SELECT
orig.[Partition],
orig.Value,
orig.Value * 100.0 / agg.TotalValue AS ValuePercent
FROM OriginalRowset orig
INNER JOIN (
SELECT
[Partition],
SUM(Value) AS TotalValue
FROM OriginalRowset
GROUP BY [Partition]
) agg ON orig.[Partition] = agg.[Partition]
Now look how you can do the same with a windowed aggregate:
SELECT
[Partition],
Value,
Value * 100.0 / SUM(Value) OVER (PARTITION BY [Partition]) AS ValuePercent
FROM OriginalRowset orig
Much easier and cleaner, isn't it?
You can get the keyboard height by subscribing to the UIKeyboardWillShowNotification
notification. (Assuming you want to know what the height will be before it's shown).
NotificationCenter.default.addObserver(
self,
selector: #selector(keyboardWillShow),
name: UIResponder.keyboardWillShowNotification,
object: nil
)
@objc func keyboardWillShow(_ notification: Notification) {
if let keyboardFrame: NSValue = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue {
let keyboardRectangle = keyboardFrame.cgRectValue
let keyboardHeight = keyboardRectangle.height
}
}
NotificationCenter.default.addObserver(
self,
selector: #selector(keyboardWillShow),
name: NSNotification.Name.UIKeyboardWillShow,
object: nil
)
@objc func keyboardWillShow(_ notification: Notification) {
if let keyboardFrame: NSValue = notification.userInfo?[UIKeyboardFrameEndUserInfoKey] as? NSValue {
let keyboardRectangle = keyboardFrame.cgRectValue
let keyboardHeight = keyboardRectangle.height
}
}
NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyboardWillShow:", name: UIKeyboardWillShowNotification, object: nil)
func keyboardWillShow(notification: NSNotification) {
let userInfo: NSDictionary = notification.userInfo!
let keyboardFrame: NSValue = userInfo.valueForKey(UIKeyboardFrameEndUserInfoKey) as! NSValue
let keyboardRectangle = keyboardFrame.CGRectValue()
let keyboardHeight = keyboardRectangle.height
}
import random
random.shuffle(array)
This is the PHP code to split query in mysql & mssql
enter code here
function splitquery($strquery)
{
$arrquery=explode('select',$strquery);
$stry='';$strx='';
for($i=0;$i<count($arrquery);$i++)
{
if($i==1)
{
echo 'select '.trim($arrquery[$i]);
}
elseif($i>1)
{
$strx=trim($arrquery[($i-1)]);
if(trim(substr($strx,-1))!='(')
{
$stry=$stry.'
select '.trim($arrquery[$i]);
}
else
{
$stry=$stry.trim('select '.trim($arrquery[$i]));
}
$strx='';
}
}
return $stry;
}
Example:
select xx from xx select xx,(select xx) from xx where y=' cc' select xx from xx left join ( select xx) where (select top 1 xxx from xxx) oder by xxx desc ";
select xx from xx
select xx,(select xx) from xx where y=' cc'
select xx from xx left join (select xx) where (select top 1 xxx from xxx) oder by xxx desc
Thank you, from Indonesia Sentrapedagang.com
See my select for paginator
SELECT TOP @limit * FROM (
SELECT ROW_NUMBER() OVER (ORDER BY colunx ASC) offset, * FROM (
-- YOU SELECT HERE
SELECT * FROM mytable
) myquery
) paginator
WHERE offset > @offset
This solves the pagination ;)
This made me want to write my own - I didn't like the ones that had been provided. Seems to me there should be 3 functions.
char *ltrim(char *s)
{
while(isspace(*s)) s++;
return s;
}
char *rtrim(char *s)
{
char* back = s + strlen(s);
while(isspace(*--back));
*(back+1) = '\0';
return s;
}
char *trim(char *s)
{
return rtrim(ltrim(s));
}
You can utilize a HashMap<String, Object>
as follows
public HashMap<String, Object> yourMethod()
{
.... different logic here
HashMap<String, Object> returnHashMap = new HashMap<String, Object>();
returnHashMap.put("objectA", objectAValue);
returnHashMap.put("myString", myStringValue);
returnHashMap.put("myBoolean", myBooleanValue);
return returnHashMap;
}
Then when calling the method in a different scope, you can cast each object back to its initial type:
// call the method
HashMap<String, Object> resultMap = yourMethod();
// fetch the results and cast them
ObjectA objectA = (ObjectA) resultMap.get("objectA");
String myString = (String) resultMap.get("myString");
Boolean myBoolean = (Boolean) resultMap.get("myBoolean");
/**
* Compute from string date in the format of yyyy-MM-dd HH:mm:ss the age of a person.
* @author Yaron Ronen
* @date 04/06/2012
*/
private int computeAge(String sDate)
{
// Initial variables.
Date dbDate = null;
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
// Parse sDate.
try
{
dbDate = (Date)dateFormat.parse(sDate);
}
catch(ParseException e)
{
Log.e("MyApplication","Can not compute age from date:"+sDate,e);
return ILLEGAL_DATE; // Const = -2
}
// Compute age.
long timeDiff = System.currentTimeMillis() - dbDate.getTime();
int age = (int)(timeDiff / MILLI_SECONDS_YEAR); // MILLI_SECONDS_YEAR = 31558464000L;
return age;
}
import numpy as np
... ## other code
some list comprehension
t=[nodel[ nodenext[i][j] ] for j in idx]
#for each link, find the node lables
#t is the list of node labels
Convert the list to a numpy array using the array method specified in the numpy library.
t=np.array(t)
This may be helpful: https://numpy.org/devdocs/user/basics.creation.html
Remember, you are NOT allowed to do this.
class foo():
def print_hello(self):
print("Hello") # This next line will produce an ERROR!
self.print_hello() # <---- it calls a class function, inside a class,
# but outside a class function. Not allowed.
You must call a class function from either outside the class, or from within a function in that class.
If you want to simply output a date, just use the following:
System.out.printf("Date: %1$te/%1$tm/%1$tY at %1$tH:%1$tM:%1$tS%n", new Date());
As seen here. Or if you want to get the value into a String (for SQL building, for example) you can use:
String formattedDate = String.format("%1$te/%1$tm/%1$tY", new Date());
You can also customize your output by following the Java API on Date/Time conversions.
Presumably, those columns are integer columns - which will be the reason as the result of the calculation will be of the same type.
e.g. if you do this:
SELECT 1 / 2
you will get 0, which is obviously not the real answer. So, convert the values to e.g. decimal and do the calculation based on that datatype instead.
e.g.
SELECT CAST(1 AS DECIMAL) / 2
gives 0.500000
Here is how this should be done:
DECLARE @String NVARCHAR(MAX);
DECLARE @CurrentEnd BIGINT; /* track the length of the next substring */
DECLARE @offset tinyint; /*tracks the amount of offset needed */
set @string = replace( replace(@string, char(13) + char(10), char(10)) , char(13), char(10))
WHILE LEN(@String) > 1
BEGIN
IF CHARINDEX(CHAR(10), @String) between 1 AND 4000
BEGIN
SET @CurrentEnd = CHARINDEX(char(10), @String) -1
set @offset = 2
END
ELSE
BEGIN
SET @CurrentEnd = 4000
set @offset = 1
END
PRINT SUBSTRING(@String, 1, @CurrentEnd)
set @string = SUBSTRING(@String, @CurrentEnd+@offset, LEN(@String))
END /*End While loop*/
For the first rule,
Click "greater than", then in the value option box, click on the cell criteria you want it to be less than, than use the format drop-down to select your color.
For the second,
Click "less than", then in the value option box, type "=.9*" and then click the cell criteria, then use the formatting just like step 1.
For the third,
Same as the second, except your formula is =".8*" rather than .9.
Try doing SHIFT + G
and you will be at the end of the page, but you can't edit yet. Go to the top by doing G + G
This will round down correctly as well:
>>> n = 46
>>> rem = n % 10
>>> if rem < 5:
... n = int(n / 10) * 10
... else:
... n = int((n + 10) / 10) * 10
...
>>> 50
svn log -r {2009-09-17}:HEAD
where 2009-09-17
is the date you went on holiday. To see the changed files as well as the summary, add a -v
option:
svn log -r {2009-09-17}:HEAD -v
I haven't used WebSVN but there will be a log viewer somewhere that does the equivalent of these commands under the hood.
It seems like react-native eject
is no more available. The only way I could find for recreating the ios folder was to generate it from scratch.
Take a backup of your ios folder
mv /path_to_your_old_project/ios /path_to_your_backup_dir/ios_backup
Navigate to a temporary directory and create a new project with the same name as your current project
react-native init project_name
mv project_name/ios /path_to_your_old_project/ios
Install the pod dependencies inside the ios folder within your project
cd /path_to_your_old_project/ios
pod install
I've found using cmd works well as an alternative, especially when you need to pipe the output from the called application (espeically when it doesn't have built in logging, unlike msbuild)
cmd /C "$msbuild $args" >> $outputfile
First you need to get the counts for each category, i.e. how many Bads and Goods and so on are there for each group (Food, Music, People). This would be done like so:
raw <- read.csv("http://pastebin.com/raw.php?i=L8cEKcxS",sep=",")
raw[,2]<-factor(raw[,2],levels=c("Very Bad","Bad","Good","Very Good"),ordered=FALSE)
raw[,3]<-factor(raw[,3],levels=c("Very Bad","Bad","Good","Very Good"),ordered=FALSE)
raw[,4]<-factor(raw[,4],levels=c("Very Bad","Bad","Good","Very Good"),ordered=FALSE)
raw=raw[,c(2,3,4)] # getting rid of the "people" variable as I see no use for it
freq=table(col(raw), as.matrix(raw)) # get the counts of each factor level
Then you need to create a data frame out of it, melt it and plot it:
Names=c("Food","Music","People") # create list of names
data=data.frame(cbind(freq),Names) # combine them into a data frame
data=data[,c(5,3,1,2,4)] # sort columns
# melt the data frame for plotting
data.m <- melt(data, id.vars='Names')
# plot everything
ggplot(data.m, aes(Names, value)) +
geom_bar(aes(fill = variable), position = "dodge", stat="identity")
Is this what you're after?
To clarify a little bit, in ggplot multiple grouping bar you had a data frame that looked like this:
> head(df)
ID Type Annee X1PCE X2PCE X3PCE X4PCE X5PCE X6PCE
1 1 A 1980 450 338 154 36 13 9
2 2 A 2000 288 407 212 54 16 23
3 3 A 2020 196 434 246 68 19 36
4 4 B 1980 111 326 441 90 21 11
5 5 B 2000 63 298 443 133 42 21
6 6 B 2020 36 257 462 162 55 30
Since you have numerical values in columns 4-9, which would later be plotted on the y axis, this can be easily transformed with reshape
and plotted.
For our current data set, we needed something similar, so we used freq=table(col(raw), as.matrix(raw))
to get this:
> data
Names Very.Bad Bad Good Very.Good
1 Food 7 6 5 2
2 Music 5 5 7 3
3 People 6 3 7 4
Just imagine you have Very.Bad
, Bad
, Good
and so on instead of X1PCE
, X2PCE
, X3PCE
. See the similarity? But we needed to create such structure first. Hence the freq=table(col(raw), as.matrix(raw))
.
I am using this to validate JSON Object
function isJsonObject(obj) {
try {
JSON.parse(JSON.stringify(obj));
} catch (e) {
return false;
}
return true;
}
I am using this to validate JSON String
function isJsonString(str) {
try {
JSON.parse(str);
} catch (e) {
return false;
}
return true;
}
You are just creating your array incorrectly. You could use http_build_query:
$fields = array(
'username' => "annonymous",
'api_key' => urlencode("1234"),
'images' => array(
urlencode(base64_encode('image1')),
urlencode(base64_encode('image2'))
)
);
$fields_string = http_build_query($fields);
So, the entire code that you could use would be:
<?php
//extract data from the post
extract($_POST);
//set POST variables
$url = 'http://api.example.com/api';
$fields = array(
'username' => "annonymous",
'api_key' => urlencode("1234"),
'images' => array(
urlencode(base64_encode('image1')),
urlencode(base64_encode('image2'))
)
);
//url-ify the data for the POST
$fields_string = http_build_query($fields);
//open connection
$ch = curl_init();
//set the url, number of POST vars, POST data
curl_setopt($ch,CURLOPT_URL, $url);
curl_setopt($ch,CURLOPT_POST, 1);
curl_setopt($ch,CURLOPT_POSTFIELDS, $fields_string);
//execute post
$result = curl_exec($ch);
echo $result;
//close connection
curl_close($ch);
?>
Personally, I needed a little hand holding figuring out how to use this and it is really, awesome.
IF(OBJECT_ID('tempdb..#TEMP') IS NOT NULL) BEGIN DROP TABLE #TEMP END
SELECT *
INTO #TEMP
FROM (
The query you want to use many times
) AS X
SELECT * FROM #TEMP WHERE THIS = THAT
SELECT * FROM #TEMP WHERE THIS <> THAT
SELECT COL1,COL3 FROM #TEMP WHERE THIS > THAT
DROP TABLE #TEMP
A simple example in shell script
#!/bin/bash
current_date_time="`date +%Y%m%d%H%M%S`";
echo $current_date_time;
With out punctuation format :- +%Y%m%d%H%M%S
With punctuation :- +%Y-%m-%d %H:%M:%S
To make things easier, here is a snippet of the code I wrote, based on inputs from the wonderful replies here:
class MyManager(models.Manager):
def get_or_none(self, **kwargs):
try:
return self.get(**kwargs)
except ObjectDoesNotExist:
return None
And then in your model:
class MyModel(models.Model):
objects = MyManager()
That's it. Now you have MyModel.objects.get() as well as MyModel.objetcs.get_or_none()
Based on the comments left above I ran this under sqlplus instead of SQL Developer and the UPDATE statement ran perfectly, leaving me to believe this is an issue in SQL Developer particularly as there was no ORA error number being returned. Thank you for leading me in the right direction.
For future readers!
Starting from material-components-android 1.2.0-alpha01, you can use new slider
component
ex:
Modify thumbSize
, thumbColor
, trackColor
accordingly.
<com.google.android.material.slider.Slider
android:id="@+id/slider"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:valueFrom="20f"
android:valueTo="70f"
android:stepSize="10"
app:thumbRadius="20dp"
app:thumbColor="@color/colorAccent"
app:trackColor="@android:color/darker_gray"
/>
Note: Track corners are not round.
To summarize the contents of other (already good!) answers, isinstance
caters for inheritance (an instance of a derived class is an instance of a base class, too), while checking for equality of type
does not (it demands identity of types and rejects instances of subtypes, AKA subclasses).
Normally, in Python, you want your code to support inheritance, of course (since inheritance is so handy, it would be bad to stop code using yours from using it!), so isinstance
is less bad than checking identity of type
s because it seamlessly supports inheritance.
It's not that isinstance
is good, mind you—it's just less bad than checking equality of types. The normal, Pythonic, preferred solution is almost invariably "duck typing": try using the argument as if it was of a certain desired type, do it in a try
/except
statement catching all exceptions that could arise if the argument was not in fact of that type (or any other type nicely duck-mimicking it;-), and in the except
clause, try something else (using the argument "as if" it was of some other type).
basestring
is, however, quite a special case—a builtin type that exists only to let you use isinstance
(both str
and unicode
subclass basestring
). Strings are sequences (you could loop over them, index them, slice them, ...), but you generally want to treat them as "scalar" types—it's somewhat incovenient (but a reasonably frequent use case) to treat all kinds of strings (and maybe other scalar types, i.e., ones you can't loop on) one way, all containers (lists, sets, dicts, ...) in another way, and basestring
plus isinstance
helps you do that—the overall structure of this idiom is something like:
if isinstance(x, basestring)
return treatasscalar(x)
try:
return treatasiter(iter(x))
except TypeError:
return treatasscalar(x)
You could say that basestring
is an Abstract Base Class ("ABC")—it offers no concrete functionality to subclasses, but rather exists as a "marker", mainly for use with isinstance
. The concept is obviously a growing one in Python, since PEP 3119, which introduces a generalization of it, was accepted and has been implemented starting with Python 2.6 and 3.0.
The PEP makes it clear that, while ABCs can often substitute for duck typing, there is generally no big pressure to do that (see here). ABCs as implemented in recent Python versions do however offer extra goodies: isinstance
(and issubclass
) can now mean more than just "[an instance of] a derived class" (in particular, any class can be "registered" with an ABC so that it will show as a subclass, and its instances as instances of the ABC); and ABCs can also offer extra convenience to actual subclasses in a very natural way via Template Method design pattern applications (see here and here [[part II]] for more on the TM DP, in general and specifically in Python, independent of ABCs).
For the underlying mechanics of ABC support as offered in Python 2.6, see here; for their 3.1 version, very similar, see here. In both versions, standard library module collections (that's the 3.1 version—for the very similar 2.6 version, see here) offers several useful ABCs.
For the purpose of this answer, the key thing to retain about ABCs (beyond an arguably more natural placement for TM DP functionality, compared to the classic Python alternative of mixin classes such as UserDict.DictMixin) is that they make isinstance
(and issubclass
) much more attractive and pervasive (in Python 2.6 and going forward) than they used to be (in 2.5 and before), and therefore, by contrast, make checking type equality an even worse practice in recent Python versions than it already used to be.
Resolved !
Here is an example
C:\Users\user\AppData\Local\Programs\Python\Python36-32\Scripts>pip install pygame
I had same issue along with https://stackoverflow.com/a/57245058/8968137 and both solved after fixing the google-services.json
# This script fragment emits Cygwin rulez under bash/cygwin
if [[ $(uname -s) == CYGWIN* ]];then
echo Cygwin rulez
else
echo Unix is king
fi
If the 6 first chars of uname -s command is "CYGWIN", a cygwin system is assumed
See below code this is working for me
iv.setImageResource(getResources().getIdentifier(
"imagename", "drawable", "com.package.application"));
And finally… there is CACornerMask in iOS11!
With CACornerMask
it can be done pretty easy:
let view = UIView()
view.clipsToBounds = true
view.layer.cornerRadius = 10
view.layer.maskedCorners = [.layerMaxXMinYCorner, .layerMinXMinYCorner] // Top right corner, Top left corner respectively
Another solution is to override the default environment configuration file path.
I find it the best solution for the of non-trivial-path configuration file load, specifically the best way to attach configuration file to dll.
AppDomain.CurrentDomain.SetData("APP_CONFIG_FILE", <Full_Path_To_The_Configuration_File>);
Example:
AppDomain.CurrentDomain.SetData("APP_CONFIG_FILE", @"C:\Shared\app.config");
More details may be found at this blog.
Additionally, this other answer has an excellent solution, complete with code to refresh
the app config and an IDisposable
object to reset it back to it's original state. With this
solution, you can keep the temporary app config scoped:
using(AppConfig.Change(tempFileName))
{
// tempFileName is used for the app config during this context
}
That'd be .delay()
.
If you are doing AJAX stuff tho, you really shouldn't just auto write "done" you should really wait for a response and see if it's actually done.
This might work for you (GNU sed):
sed -ri '/\s+$/s///' file
This looks for whitespace at the end of the line and and if present removes it.
You can simply compare 2 strings
function isLater(dateString1, dateString2) {
return dateString1 > dateString2
}
Then
isLater("2012-12-01", "2012-11-01")
returns true while
isLater("2012-12-01", "2013-11-01")
returns false
The cursor is the Interface that represents a 2-dimensional
table of any database.
When you try to retrieve some data using SELECT
statement, then the database will 1st create a CURSOR object and return its reference to you.
The pointer of this returned reference is pointing to the 0th location which is otherwise called as before the first location of the Cursor, so when you want to retrieve data from the cursor, you have to 1st move to the 1st record so we have to use moveToFirst
When you invoke moveToFirst()
method on the Cursor, it takes the cursor pointer to the 1st location. Now you can access the data present in the 1st record
The best way to look :
Cursor cursor
for (cursor.moveToFirst();
!cursor.isAfterLast();
cursor.moveToNext()) {
.........
}
Some of the answers here are complicated for me to understand. I will try to add one more answer in an attempt to simplify the way how to look at this.
Example 1:
7 % 5 = 2
Each person should get one pizza slice.
Divide 7 slices on 5 people and every one of the 5
people will get one pizza slice and we will end up with 2
slices (remaining). 7 % 5
equals 2
is because 7
is larger than 5
.
Example 2:
5 % 7 = 5
Each person should get one pizza slice
It gives 5
because 5
is less than 7
. So by definition, you cannot divide whole 5
items on 7
people. So the division doesn't take place at all and you end up with the same amount you started with which is 5
.
The process is basically to ask two questions:
Example A: (7 % 5)
(Q.1) What number to multiply 5 in order to get 7?
Two Conditions: Multiplier starts from `0`. Output result should not exceed `7`.
Let's try:
Multiplier is zero 0
so, 0 x 5 = 0
Still, we are short so we add one (+1) to multiplier.
1
so, 1 x 5 = 5
We did not get 7 yet, so we add one (+1).
2
so, 2 x 5 = 10
Now we exceeded 7
. So 2
is not the correct multiplier.
Let's go back one step (where we used 1
) and hold in mind the result which is5
. Number 5
is the key here.
(Q.2) How much do we need to add to the 5
(the number we just got from step 1) to get 7
?
We deduct the two numbers: 7-5 = 2
.
So the answer for: 7 % 5
is 2
;
Example B: (5 % 7)
1- What number we use to multiply 7 in order to get 5?
Two Conditions: Multiplier starts from `0`. Output result and should not exceed `5`.
Let's try:
0
so, 0 x 7 = 0
We did not get 5 yet, let's try a higher number.
1
so, 1 x 7 = 7
Oh no, we exceeded 5
, let's get back to the previous step where we used 0
and got the result 0
.
2- How much we need to add to 0
(the number we just got from step 1) in order to reach the value of the number on the left 5
?
It's clear that the number is 5. 5-0 = 5
5 % 7 = 5
Hope that helps.
You should declare Environment Variable for PHP in path, so you could use like this:
C:\Path\to\somewhere>php cli.php
You can do it like this
Hi you can use this below code for working justified nav
<div class="navbar navbar-inverse">
<ul class="navbar-nav nav nav-justified">
<li class="active"><a href="#">Inicio</a></li>
<li><a href="#">Item 1</a></li>
<li><a href="#">Item 2</a></li>
<li><a href="#">Item 3</a></li>
<li><a href="#">Item 4</a></li>
</ul>
</div>
window.opener=window;
window.close();
I just want to share my solution, based on some of the functional features of last versions of JavaScript:
var str = "Test abc test test abc test test test abc test test abc";
var result = str.split(' ').reduce((a, b) => {
return b == 'abc' ? a : a + ' ' + b; })
console.warn(result)
I cloned the simple_list_item_1
(Alt + Click) and placed the copy on my res/layout
folder, renamed it to list_white_text.xml
with this contents:
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/text1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceListItemSmall"
android:gravity="center_vertical"
android:textColor="@color/abc_primary_text_material_dark"
android:minHeight="?android:attr/listPreferredItemHeightSmall" />
The android:textColor="@color/abc_primary_text_material_dark"
translates to white on my device.
then in the java
code:
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.list_white_text, myList);
You should also properly configure the maximum memory allocations for MapReduce. From this HortonWorks tutorial:
[...]
Each machine in our cluster has 48 GB of RAM. Some of this RAM should be >reserved for Operating System usage. On each node, we’ll assign 40 GB RAM for >YARN to use and keep 8 GB for the Operating System
For our example cluster, we have the minimum RAM for a Container (yarn.scheduler.minimum-allocation-mb) = 2 GB. We’ll thus assign 4 GB for Map task Containers, and 8 GB for Reduce tasks Containers.
In mapred-site.xml:
mapreduce.map.memory.mb
: 4096
mapreduce.reduce.memory.mb
: 8192Each Container will run JVMs for the Map and Reduce tasks. The JVM heap size should be set to lower than the Map and Reduce memory defined above, so that they are within the bounds of the Container memory allocated by YARN.
In mapred-site.xml:
mapreduce.map.java.opts
:-Xmx3072m
mapreduce.reduce.java.opts
:-Xmx6144m
The above settings configure the upper limit of the physical RAM that Map and Reduce tasks will use.
To sum it up:
mapreduce
configs, not the mapred
ones. EDIT: This comment is not applicable anymore now that you've edited your question.java.opts
settings listed above.Finally, you may want to check this other SO question that describes a similar problem (and solution).
You can use relative path to mount the volume to container:
docker run -v `pwd`/certs:/container/path/to/certs ...
Note the back tick on the pwd
which give you the present working directory. It assumes you have the certs
folder in current directory that the docker run
is executed. Kinda great for local development and keep the certs folder visible to your project.
Try using now.date()
to get a Date
object rather than a DateTime
.
If that doesn't work, then converting that to a string should work:
now = datetime.datetime(2009,5,5)
str_now = now.date().isoformat()
cursor.execute('INSERT INTO table (name, id, datecolumn) VALUES (%s,%s,%s)', ('name',4,str_now))
Use the INFORMATION_SCHEMA.TABLES view to get the list of tables. Generate Drop scripts in the select statement and drop it using Dynamic SQL:
DECLARE @sql NVARCHAR(max)=''
SELECT @sql += ' Drop table ' + QUOTENAME(TABLE_SCHEMA) + '.'+ QUOTENAME(TABLE_NAME) + '; '
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE = 'BASE TABLE'
Exec Sp_executesql @sql
Sys.Tables Version
DECLARE @sql NVARCHAR(max)=''
SELECT @sql += ' Drop table ' + QUOTENAME(s.NAME) + '.' + QUOTENAME(t.NAME) + '; '
FROM sys.tables t
JOIN sys.schemas s
ON t.[schema_id] = s.[schema_id]
WHERE t.type = 'U'
Exec sp_executesql @sql
Note: If you have any foreign Keys
defined between tables then first run the below query to disable all foreign keys
present in your database.
EXEC sp_msforeachtable "ALTER TABLE ? NOCHECK CONSTRAINT all"
For more information, check here.
Why does it have to be encoded? A request looks like this:
GET /url HTTP/1.1
(Ignoring headers)
There are 3 fields separated by a white space. If you put a space in your url:
GET /url end_url HTTP/1.1
You know have 4 fields, the HTTP server will tell you it is an invalid request.
GET /url%20end_url HTTP/1.1
3 fields => valid
Note: in the query string (after ?), a space is usually encoded as a +
GET /url?var=foo+bar HTTP/1.1
rather than
GET /url?var=foo%20bar HTTP/1.1
REAL
is what you are looking for. Documentation of SQLite datatypes
Solved it by first making both numbers integers, executing the expression and afterwards dividing the result to get the decimal places back:
function evalMathematicalExpression(a, b, op) {
const smallest = String(a < b ? a : b);
const factor = smallest.length - smallest.indexOf('.');
for (let i = 0; i < factor; i++) {
b *= 10;
a *= 10;
}
a = Math.round(a);
b = Math.round(b);
const m = 10 ** factor;
switch (op) {
case '+':
return (a + b) / m;
case '-':
return (a - b) / m;
case '*':
return (a * b) / (m ** 2);
case '/':
return a / b;
}
throw `Unknown operator ${op}`;
}
Results for several operations (the excluded numbers are results from eval
):
0.1 + 0.002 = 0.102 (0.10200000000000001)
53 + 1000 = 1053 (1053)
0.1 - 0.3 = -0.2 (-0.19999999999999998)
53 - -1000 = 1053 (1053)
0.3 * 0.0003 = 0.00009 (0.00008999999999999999)
100 * 25 = 2500 (2500)
0.9 / 0.03 = 30 (30.000000000000004)
100 / 50 = 2 (2)
There's the NUMBERFORMATTER jQuery plugin, details below:
https://code.google.com/p/jquery-numberformatter/
From the above link:
This plugin is a NumberFormatter plugin. Number formatting is likely familiar to anyone who's worked with server-side code like Java or PHP and who has worked with internationalization.
EDIT: Replaced the link with a more direct one.
Unfortunately apple priority the device date format, so in some cases against what you put, swift change your format to 12hrs
To fix this is necessary to use setLocalizedDateFormatFromTemplate instead of dateFormat an hide the AM and PM
let formatter = DateFormatter()
formatter.setLocalizedDateFormatFromTemplate("HH:mm:ss a")
formatter.amSymbol = ""
formatter.pmSymbol = ""
formatter.timeZone = TimeZone(secondsFromGMT: 0)
var prettyDate = formatter.string(from: Date())
You can check a very useful post with more information detailed in https://prograils.com/posts/the-curious-case-of-the-24-hour-time-format-in-swift
I'd like to build upon some of the answers above and given elsewhere and suggest using absolute positioning along with the :before pseudo class. A lot of the examples above (and in similar questions) are utilizing custom HTML markup, including Font Awesome's method of handling. This goes against the original question, and isn't strictly necessary.
ul {
list-style-type: none;
padding-left: 20px;
}
li {
position: relative;
padding-left: 20px;
margin-bottom: 10px
}
li:before {
position: absolute;
top: 0;
left: 0;
font-family: FontAwesome;
content: "\f058";
color: green;
}
That's basically it. You can get the ISO value for use in CSS content on the Font Awesome cheatsheet. Simply use the last 4 alphanumerics prefixed with a backslash. So []
becomes \f058
You can do like this.
<input type="button" value="mybutton1" onclick="dosomething(this)">
function dosomething(element){
alert("value is "+element.value); //you can print any value like id,class,value,innerHTML etc.
};
Cast it as an int and subtract
$integer = (int)$your_number;
$decimal = $your_number - $integer;
Or just to get the decimal for comparison
$decimal = $your_number - (int)$your_number
DECLARE @FromDate DATETIME
SET @FromDate = 'Jan 10 2016 12:00AM'
DECLARE @ToDate DATETIME
SET @ToDate = 'Jan 10 2017 12:00AM'
DECLARE @Dynamic_Qry nvarchar(Max) =''
SET @Dynamic_Qry='SELECT
(CONVERT(DATETIME,(SELECT
CASE WHEN ( ''IssueDate'' =''IssueDate'') THEN
EMP_DOCUMENT.ISSUE_DATE
WHEN (''IssueDate'' =''ExpiryDate'' ) THEN
EMP_DOCUMENT.EXPIRY_DATE ELSE EMP_DOCUMENT.APPROVED_ON END
CHEKDATE ), 101)
)FROM CR.EMP_DOCUMENT as EMP_DOCUMENT WHERE 1=1
AND (
CONVERT(DATETIME,(SELECT
CASE WHEN ( ''IssueDate'' =''IssueDate'') THEN
EMP_DOCUMENT.ISSUE_DATE
WHEN (''IssueDate'' =''ExpiryDate'' ) THEN EMP_DOCUMENT.EXPIRY_DATE
ELSE EMP_DOCUMENT.APPROVED_ON END
CHEKDATE ), 101)
) BETWEEN '''+ CONVERT(CHAR(10), @FromDate, 126) +''' AND '''+CONVERT(CHAR(10), @ToDate , 126
)
+'''
'
print @Dynamic_Qry
EXEC(@Dynamic_Qry)
parent_list = [{'A': 'val1', 'B': 'val2'}, {'C': 'val3', 'D': 'val4'}]
{% for dict_item in parent_list %}
{% for key, value in dict_item.items() %}
<h1>Key: {{key}}</h1>
<h2>Value: {{value}}</h2>
{% endfor %}
{% endfor %}
Make sure you have the list of dict items. If you get UnicodeError
may be the value inside the dict contains unicode format. That issue can be solved in your views.py
.
If the dict is unicode
object, you have to encode into utf-8
.
Have a listen to this week's edition of the Floss Weekly podcast, which covers SOA. The descriptions are pretty high level and don't delve into too many technical details (although more concrete and recognizable examples of SOA projects would have been helpful.
Accepted answer uses normal function. So posting the same code with slight modification using arrow function on forEach
yourArray.forEach(arrayItem => {
var x = arrayItem.prop1 + 2;
console.log(x);
});
Also in $.each you can use arrow function like below
$.each(array, (item, index) => {
console.log(index, item);
});
In a relational database system, there can be only three types of table relationships:
So, a one-to-many
table relationship looks as follows:
Note that the relationship is based on the Foreign Key column (e.g., post_id
) in the child table.
So, there is a single source of truth when it comes to managing a one-to-many
table relationship.
Now, if you take a bidirectional entity relationship that maps on the one-to-many
table relationship we saw previously:
If you take a look at the diagram above, you can see that there are two ways to manage this relationship.
In the Post
entity, you have the comments
collection:
@OneToMany(
mappedBy = "post",
cascade = CascadeType.ALL,
orphanRemoval = true
)
private List<PostComment> comments = new ArrayList<>();
And, in the PostComment
, the post
association is mapped as follows:
@ManyToOne(
fetch = FetchType.LAZY
)
@JoinColumn(name = "post_id")
private Post post;
So, you have two sides that can change the entity association:
comments
child collection, a new post_comment
row should be associated with the parent post
entity via its post_id
column.post
property of the PostComment
entity, the post_id
column should be updated as well.Because there are two ways to represent the Foreign Key column, you must define which is the source of truth when it comes to translating the association state change into its equivalent Foreign Key column value modification.
The mappedBy
attribute tells that the @ManyToOne
side is in charge of managing the Foreign Key column, and the collection is used only to fetch the child entities and to cascade parent entity state changes to children (e.g., removing the parent should also remove the child entities).
It's called the inverse side because it references the child entity property that manages this table relationship.
Now, even if you defined the mappedBy
attribute and the child-side @ManyToOne
association manages the Foreign Key column, you still need to synchronize both sides of the bidirectional association.
The best way to do that is to add these two utility methods:
public void addComment(PostComment comment) {
comments.add(comment);
comment.setPost(this);
}
public void removeComment(PostComment comment) {
comments.remove(comment);
comment.setPost(null);
}
The addComment
and removeComment
methods ensure that both sides are synchronized. So, if we add a child entity, the child entity needs to point to the parent and the parent entity should have the child contained in the child collection.
HTML are markup languages, basically they are set of tags like <html>
, <body>
, which is used to present a website using css, and javascript as a whole. All these, happen in the clients system or the user you will be browsing the website.
Now, Connecting to a database, happens on whole another level. It happens on server, which is where the website is hosted.
So, in order to connect to the database and perform various data related actions, you have to use server-side scripts, like php, jsp, asp.net etc.
Now, lets see a snippet of connection using MYSQLi Extension of PHP
$db = mysqli_connect('hostname','username','password','databasename');
This single line code, is enough to get you started, you can mix such code, combined with HTML tags to create a HTML page, which is show data based pages. For example:
<?php
$db = mysqli_connect('hostname','username','password','databasename');
?>
<html>
<body>
<?php
$query = "SELECT * FROM `mytable`;";
$result = mysqli_query($db, $query);
while($row = mysqli_fetch_assoc($result)) {
// Display your datas on the page
}
?>
</body>
</html>
In order to insert new data into the database, you can use phpMyAdmin
or write a INSERT
query and execute them.
Using REFERENCED_TABLE_NAME does not always work and can be a NULL value. The following query can work instead:
select * from INFORMATION_SCHEMA.KEY_COLUMN_USAGE where TABLE_NAME = '<table>';
http://www.kernel.org/pub/software/scm/git/docs/git-revert.html
using git revert <commit>
will create a new commit that reverts the one you dont want to have.
You can specify a list of commits to revert.
An alternative: http://git-scm.com/docs/git-reset
git reset
will reset your copy to the commit you want.
Step 1 Open android studio . Build -> Generate Signed APK… . now click on “Generate Signed APK”.
Step 2
Click Create new.
Step 3
Fill the details and click ok.
jks key details,It will go back to previous window.
Click Next, and give the password which you stored in key.
Step 4
Now click Finish and wait to complete the building process.
Now apk generated successfully. Click show in Explorer.
If you need more details please visit and check the live demo http://javaant.com/how-to-make-apk-file-in-android-studio/#.VwzedZN96Hs
The wording of the error message corresponds to what you get from Google Chrome when you run JSON.parse('<...')
. I know you said the server is setting Content-Type:application/json
, but I am led to believe the response body is actually HTML.
Feed.js:94 undefined "parsererror" "SyntaxError: Unexpected token < in JSON at position 0"
with the line
console.error(this.props.url, status, err.toString())
underlined.
The err
was actually thrown within jQuery
, and passed to you as a variable err
. The reason that line is underlined is simply because that is where you are logging it.
I would suggest that you add to your logging. Looking at the actual xhr
(XMLHttpRequest) properties to learn more about the response. Try adding console.warn(xhr.responseText)
and you will most likely see the HTML that is being received.
It skips all whitespace (spaces, tabs, new lines, etc.) by default. You can either change its behavior, or use a slightly different mechanism. To change its behavior, use the manipulator noskipws
, as follows:
cin >> noskipws >> a[i];
But, since you seem like you want to look at the individual characters, I'd suggest using get
, like this prior to your loop
cin.get( a, n );
Note: get
will stop retrieving chars from the stream if it either finds a newline char (\n
) or after n-1 chars. It stops early so that it can append the null character (\0
) to the array. You can read more about the istream
interface here.
You can use .filter()
with boolean operators ie &&:
var find = my_array.filter(function(result) {
return result.param1 === "srting1" && result.param2 === 'string2';
});
return find[0];
Android NDK official hello-libs
CMake example
Just worked for me on Ubuntu 17.10 host, Android Studio 3, Android SDK 26, so I strongly recommend that you base your project on it.
The shared library is called libgperf
, the key code parts are:
hello-libs/app/src/main/cpp/CMakeLists.txt:
// -L
add_library(lib_gperf SHARED IMPORTED)
set_target_properties(lib_gperf PROPERTIES IMPORTED_LOCATION
${distribution_DIR}/gperf/lib/${ANDROID_ABI}/libgperf.so)
// -I
target_include_directories(hello-libs PRIVATE
${distribution_DIR}/gperf/include)
// -lgperf
target_link_libraries(hello-libs
lib_gperf)
android {
sourceSets {
main {
// let gradle pack the shared library into apk
jniLibs.srcDirs = ['../distribution/gperf/lib']
Then, if you look under /data/app
on the device, libgperf.so
will be there as well.
on C++ code, use: #include <gperf.h>
header location: hello-libs/distribution/gperf/include/gperf.h
lib location: distribution/gperf/lib/arm64-v8a/libgperf.so
If you only support some architectures, see: Gradle Build NDK target only ARM
The example git tracks the prebuilt shared libraries, but it also contains the build system to actually build them as well: https://github.com/googlesamples/android-ndk/tree/840858984e1bb8a7fab37c1b7c571efbe7d6eb75/hello-libs/gen-libs
I have several version of JDK (not JRE) instaled and I launch Eclipse with:
C:\eclipse\eclipse.exe -vm "%JAVA_HOME%\bin\javaw.exe" -data f:\dev\java\2013
As you can see, I set JAVA_HOME
to point to the version of JDK I want to use.
I NEVER add javaw.exe in the PATH.
-data
is used to choose a workspace for a particular job/client/context.
Provided that any element has the id attribute on a webpage. One could simply link/jump to the element that is referenced by the tag.
Within the same page:
<div id="markOne"> ..... </div>
......
<a href="#markOne">Jump to markOne</a>
Other page:
<div id="http://randomwebsite.com/mypage.html#markOne">
Jumps to the markOne element in the mypage of the linked website
</div>
The targets don't necessarily have an anchor element.
You can go check this fiddle out.
you can simply use your own code but add name for the select tag
<form method="POST" action="index.php?action=contact_agent&agent_id=">
<select name="agent_id">
<option value="1">Agent Homer</option>
<option value="2">Agent Lenny</option>
<option value="3">Agent Carl</option>
</select>
then you can access it like this
String agent=request.getparameter("agent_id");
Check the length of the list given by of split() method.
if len(your_string.split()==0:
print("yes")
Or Compare output of strip() method with null.
if your_string.strip() == '':
print("yes")
Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), uri);
Well that's a very interesting question. I would divide the two constants in your question according to their type. int MAX_COUNT
is a constant of primitive type while Logger log
is a non-primitive type.
When we are making use of a constant of a primitive types, we are mutating the constant only once in our code public static final in MAX_COUNT = 10
and we are just accessing the value of the constant elsewhere for(int i = 0; i<MAX_COUNT; i++)
. This is the reason we are comfortable with using this convention.
While in the case of non-primitive types, although, we initialize the constant in only one place private static final Logger log = Logger.getLogger(MyClass.class);
, we are expected to mutate or call a method on this constant elsewhere log.debug("Problem")
. We guys don't like to put a dot operator after the capital characters. After all we have to put a function name after the dot operator which is surely going to be a camel-case name. That's why LOG.debug("Problem")
would look awkward.
Same is the case with String
types. We are usually not mutating or calling a method on a String
constant in our code and that's why we use the capital naming convention for a String
type object.
Here you go. I have used this code with UIView, though. You should be able to make those adjustments for scrollview.
func addKeyboardNotifications() {
NotificationCenter.default.addObserver(self,
selector: #selector(keyboardWillShow(notification:)),
name: NSNotification.Name.UIKeyboardWillShow, object: nil)
NotificationCenter.default.addObserver(self,
selector: #selector(keyboardWillHide(notification:)),
name: NSNotification.Name.UIKeyboardWillHide, object: nil)
}
func keyboardWillShow(notification: NSNotification) {
if let keyboardSize = (notification.userInfo?[UIKeyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue {
let duration = notification.userInfo![UIKeyboardAnimationDurationUserInfoKey] as! Double
// if using constraints
// bottomViewBottomSpaceConstraint.constant = keyboardSize.height
self.view.frame.origin.y -= keyboardSize.height
UIView.animate(withDuration: duration) {
self.view.layoutIfNeeded()
}
}
}
func keyboardWillHide(notification: NSNotification) {
let duration = notification.userInfo![UIKeyboardAnimationDurationUserInfoKey] as! Double
//if using constraint
// bottomViewBottomSpaceConstraint.constant = 0
self.view.frame.origin.y = 0
UIView.animate(withDuration: duration) {
self.view.layoutIfNeeded()
}
}
Don't forget to remove notifications at right place.
func removeKeyboardNotifications() {
NotificationCenter.default.removeObserver(self, name: NSNotification.Name.UIKeyboardWillShow, object: nil)
NotificationCenter.default.removeObserver(self, name: NSNotification.Name.UIKeyboardWillHide, object: nil)
}
onNewIntent()
is meant as entry point for singleTop activities which already run somewhere else in the stack and therefore can't call onCreate()
. From activities lifecycle point of view it's therefore needed to call onPause()
before onNewIntent()
. I suggest you to rewrite your activity to not use these listeners inside of onNewIntent()
. For example most of the time my onNewIntent()
methods simply looks like this:
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
// getIntent() should always return the most recent
setIntent(intent);
}
With all setup logic happening in onResume()
by utilizing getIntent()
.
main()
{
int i = 247593;
char str[10];
sprintf(str, "%d", i);
// Now str contains the integer as characters
}
Hope it will be helpful to you.
double s =-1;
double[] n = {111.5, 111.2, 110.5, 101.3, 101.9, 102.1, 115.2, 112.1};
for(int i = n.length-1;i>=0;--i){
int k = i-1;
while(k >= 0){
if(n[i]>n[k]){
s = n[k];
n[k] = n[i];
n[i] = s;
}
k --;
}
}
System.out.println(Arrays.toString(n));
it gives time complexity O(n^2) but i hope its work
If you want to use a single value in bash use:
companyid=$(mysql --user=$Username --password=$Password --database=$Database -s --execute="select CompanyID from mytable limit 1;"|cut -f1)
echo "$companyid"
Try uninstalling Python and then install it again, but this time make sure that the option Add Python to Path is marked as checked during the installation process.
For me it was a problem with gcc, highlighted by gcc -v
. It was down to upgrading Xcode recently this post said to do sudo xcode-select -switch /Applications/Xcode.app
which fixed the issue.
Simply Open you Main Activity File and create below mention function:
try {
PackageInfo info = getPackageManager().getPackageInfo(
"your.application.package.name",
PackageManager.GET_SIGNATURES);
for (Signature signature : info.signatures) {
MessageDigest md = MessageDigest.getInstance("SHA");
md.update(signature.toByteArray());
Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT));
}
} catch (PackageManager.NameNotFoundException e) {
} catch (NoSuchAlgorithmException e) {
}
1.1 Run you Application, this will generate a Hash key for your application.
Now, Open log cat and search with "KeyHash" and copy the hash key.
One you generate the Hash key you can remove this function.
Well, they are semantically different, the Number
constructor called as a function performs type conversion and parseInt
performs parsing, e.g.:
// parsing:
parseInt("20px"); // 20
parseInt("10100", 2); // 20
parseInt("2e1"); // 2
// type conversion
Number("20px"); // NaN
Number("2e1"); // 20, exponential notation
Also parseInt
will ignore trailing characters that don't correspond with any digit of the currently used base.
The Number
constructor doesn't detect implicit octals, but can detect the explicit octal notation:
Number("010"); // 10
Number("0o10") // 8, explicit octal
parseInt("010"); // 8, implicit octal
parseInt("010", 10); // 10, decimal radix used
And it can handle numbers in hexadecimal notation, just like parseInt
:
Number("0xF"); // 15
parseInt("0xF"); //15
In addition, a widely used construct to perform Numeric type conversion, is the Unary +
Operator (p. 72), it is equivalent to using the Number
constructor as a function:
+"2e1"; // 20
+"0xF"; // 15
+"010"; // 10
By my knowledge there is no overall way to do this. If you look at the headers of cross platform/multiple compiler supporting libraries you'll always find a lot of defines that use compiler specific constructs to determine such things:
/*Define Microsoft Visual C++ .NET (32-bit) compiler */
#if (defined(_M_IX86) && defined(_MSC_VER) && (_MSC_VER >= 1300)
...
#endif
/*Define Borland 5.0 C++ (16-bit) compiler */
#if defined(__BORLANDC__) && !defined(__WIN32__)
...
#endif
You probably will have to do such defines yourself for all compilers you use.
Go to
if it doesnt work this can help you:
https://www.jetbrains.com/help/pycharm/installing-uninstalling-and-upgrading-packages.html
an assignment returns the left-hand side of the assignment. so: yes. it is possible. however, you need to declare the variable outside:
int v = 1;
if((v = someMethod()) != 0) {
System.err.println(v);
}
You can submit your jsp page to servlet. For this use <form>
tag.
And to redirect use:
response.sendRedirect("servleturl")
EDIT:
As pointed out in the comments, this is a much simpler version:
Arrays.stream(stringArray).mapToInt(Integer::parseInt).toArray()
This way we can skip the whole conversion to and from a list.
I found another one line solution, but it's still pretty slow (takes about 100 times longer than a for cycle - tested on an array of 6000 0's)
String[] stringArray = ...
int[] out= Arrays.asList(stringArray).stream().map(Integer::parseInt).mapToInt(i->i).toArray();
What this does: