Summarizing 2 ways to replace strings:
group<-data.frame(group=c("12357e", "12575e", "197e18", "e18947"))
1) Use gsub
group$group.no.e <- gsub("e", "", group$group)
2) Use the stringr
package
group$group.no.e <- str_replace_all(group$group, "e", "")
Both will produce the desire output:
group group.no.e
1 12357e 12357
2 12575e 12575
3 197e18 19718
4 e18947 18947
public static boolean isInt(double d)
{
return d == (int) d;
}
UTF-8 is not a character set, it's an encoding. The character set for UTF-8 is Unicode. If you want to store Unicode text you use the nvarchar
data type.
If the database would use UTF-8 to store text, you would still not get the text out as encoded UTF-8 data, you would get it out as decoded text.
You can easily store UTF-8 encoded text in the database, but then you don't store it as text, you store it as binary data (varbinary
).
I cannot agree with arguments, that it is better to write all files in other directories, e.g., %APPDATA%, it is only that you cannot avoid it, if you want to avoid running application as administrator on Windows 7.
It would be much cleaner to keep all application specific data (e.g. ini files) in the same folder as the application (or in sub folders) as to speed the data all over the disk (%APPDATA%, registry and who knows where else). This is just Microsoft idea of clean programming. Than of course you need registry cleaner, disk cleaner, temporary file cleaner, ... instead of e+very clean practice - removing the application folder removes all application specific data (exep user data, which is normally somewhere in My Documents or so).
In my programs I would prefer to have ini files in application directory, however, I do not have them there, only because I cannot have them there (on Windows).
I ran into this same problem on a Pixelbook. It ended up that I needed to enable: Settings > Develop Android Apps > Enable ADB Debugging
in the Chromebook settings to get it working.
Based on that, it seems possible that if AVD isn't working on other computers it might be an issue with ADB.
From http://en.wikipedia.org/wiki/Base64
The term Base64 refers to a specific MIME content transfer encoding. It is also used as a generic term for any similar encoding scheme that encodes binary data by treating it numerically and translating it into a base 64 representation. The particular choice of base is due to the history of character set encoding: one can choose a set of 64 characters that is both part of the subset common to most encodings, and also printable. This combination leaves the data unlikely to be modified in transit through systems, such as email, which were traditionally not 8-bit clean.
Base64 can be used in a variety of contexts:
- Evolution and Thunderbird use Base64 to obfuscate e-mail passwords[1]
- Base64 can be used to transmit and store text that might otherwise cause delimiter collision
Base64 is often used as a quick but insecure shortcut to obscure secrets without incurring the overhead of cryptographic key management
Spammers use Base64 to evade basic anti-spamming tools, which often do not decode Base64 and therefore cannot detect keywords in encoded messages.
- Base64 is used to encode character strings in LDIF files
- Base64 is sometimes used to embed binary data in an XML file, using a syntax similar to ...... e.g. Firefox's bookmarks.html.
- Base64 is also used when communicating with government Fiscal Signature printing devices (usually, over serial or parallel ports) to minimize the delay when transferring receipt characters for signing.
- Base64 is used to encode binary files such as images within scripts, to avoid depending on external files.
- Can be used to embed raw image data into a CSS property such as background-image.
With bash
a="The cat sat on the mat"
b=cat
strindex() {
x="${1%%$2*}"
[[ "$x" = "$1" ]] && echo -1 || echo "${#x}"
}
strindex "$a" "$b" # prints 4
strindex "$a" foo # prints -1
Do you want duplicates? If not maybe you should use sets instead:
>>> set([1, 2, 3, 4, 5]).intersection(set([9, 8, 7, 6, 5]))
set([5])
Can you try this?
Go to Tools> Preferences > Database > NLS and set the Date Format as MM/DD/YYYY HH24:MI:SS
import java.io.*;
import java.util.*;
public class CandidateCode {
public static void main(String args[] ) throws Exception {
Scanner sc = new Scanner(System.in);
int n =Integer.parseInt(sc.nextLine());
String arr[] = new String[n];
for (int i = 0; i < arr.length; i++) {
arr[i] = sc.nextLine();
}
for(int i = 0; i <arr.length; ++i) {
for (int j = i + 1; j <arr.length; ++j) {
if (arr[i].compareTo(arr[j]) > 0) {
String temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
}
}
}
for(int i = 0; i <arr.length; i++) {
System.out.println(arr[i]);
}
}
}
May it will help for u. U should use (localdb).
LocalDB automatic instance
Server=(localdb)\v11.0;Integrated Security=true;
LocalDB automatic instance with specific data file
Server=(localdb)\v11.0;Integrated Security=true;
AttachDbFileName=C:\MyFolder\MyData.mdf;
simple use remove() function. and pass object as param u want to remove. ur arraylist.remove(obj)
I prefer it explicitly:
if len(li) == 0:
print('the list is empty')
This way it's 100% clear that li
is a sequence (list) and we want to test its size. My problem with if not li: ...
is that it gives the false impression that li
is a boolean variable.
project-->properties-->pydev-pythonpath-->external libraries --> add source folder, add the PARENT FOLDER of the project. Then restart eclipse.
Sadly, as of this writing, DESPITE their own documentation readme, there is no src.zip in the JDK 7 or 8 install directories when you download the Windows version.
Note: perhaps this happens because many of us don't actually run the install .exe, but instead extract it. Many of us don't run the Java install (the full blown windows install) for security reasons....we just want the JDK put someplace out of the way where potential viruses cannot find it.
But their policy regarding the windows .exe (whatever it truly is) is indeed nuts, HOWEVER, the src.zip DOES exist in the linux install (a .tar.gz). There are multiple ways of extracting a .tar and a .gz, and I prefer the free "7Zip" utility.
Oracle, this is really beyond stupid.
Note that when you insert into a List at a position, you are really inserting at a dynamic position within the List's current elements. See here:
package com.tutorialspoint;
import java.util.ArrayList;
public class ArrayListDemo {
public static void main(String[] args) {
// create an empty array list with an initial capacity
ArrayList<Integer> arrlist = new ArrayList<Integer>(5);
// use add() method to add elements in the list
arrlist.add(15, 15);
arrlist.add(22, 22);
arrlist.add(30, 30);
arrlist.add(40, 40);
// adding element 25 at third position
arrlist.add(2, 25);
// let us print all the elements available in list
for (Integer number : arrlist) {
System.out.println("Number = " + number);
}
}
}
$javac com/tutorialspoint/ArrayListDemo.java
$java -Xmx128M -Xms16M com/tutorialspoint/ArrayListDemo
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index: 15, Size: 0 at java.util.ArrayList.rangeCheckForAdd(ArrayList.java:661) at java.util.ArrayList.add(ArrayList.java:473) at com.tutorialspoint.ArrayListDemo.main(ArrayListDemo.java:12)
This should do your work :
df_agg <- aggregate(num~name+type,df,FUN=NROW)
names(df_agg)[3] <- "count"
df <- merge(df,df_agg,by=c('name','type'),all.x=TRUE)
Just restart R Studio after installing the new version of R. To confirm you're on the new version, >version and you should see the new details.
This could be device related issue.
I was getting this error in MI devices only, code was working with all other devices.
This might help:
defaultConfig{
...
externalNativeBuild {
cmake {
cppFlags "-frtti -fexceptions"
}
}
}
This is pretty simple here is an example
Add your command code here like:
if (cmd === `!dm`) {
let dUser =
message.guild.member(message.mentions.users.first()) ||
message.guild.members.get(args[0]);
if (!dUser) return message.channel.send("Can't find user!");
if (!message.member.hasPermission('ADMINISTRATOR'))
return message.reply("You can't you that command!");
let dMessage = args.join(' ').slice(22);
if (dMessage.length < 1) return message.reply('You must supply a message!');
dUser.send(`${dUser} A moderator from WP Coding Club sent you: ${dMessage}`);
message.author.send(
`${message.author} You have sent your message to ${dUser}`
);
}
For a more complete list as of 2015:
* html .ie6 {property:value;}
or
.ie6 { _property:value;}
*+html .ie7 {property:value;}
or
*:first-child+html .ie7 {property:value;}
@media screen\9 {
.ie67 {property:value;}
}
or
.ie67 { *property:value;}
or
.ie67 { #property:value;}
@media \0screen\,screen\9 {
.ie678 {property:value;}
}
html>/**/body .ie8 {property:value;}
or
@media \0screen {
.ie8 {property:value;}
}
.ie8 { property /*\**/: value\9 }
@media screen\0 {
.ie8910 {property:value;}
}
@media screen and (min-width:0) and (min-resolution: .001dpcm) {
// IE9 CSS
.ie9{property:value;}
}
@media screen and (min-width:0) and (min-resolution: +72dpi) {
// IE9+ CSS
.ie9up{property:value;}
}
@media screen and (min-width:0) {
.ie910{property:value;}
}
_:-ms-lang(x), .ie10 { property:value\9; }
_:-ms-lang(x), .ie10up { property:value; }
or
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
.ie10up{property:value;}
}
_:-ms-fullscreen, :root .ie11up { property:value; }
Modernizr runs quickly on page load to detect features; it then creates a JavaScript object with the results, and adds classes to the html element
The Javascript:
var b = document.documentElement;
b.setAttribute('data-useragent', navigator.userAgent);
b.setAttribute('data-platform', navigator.platform );
b.className += ((!!('ontouchstart' in window) || !!('onmsgesturechange' in window))?' touch':'');
Adds (e.g) the below to the html
element:
data-useragent='Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C)'
data-platform='Win32'
Allowing very targetted CSS selectors, e.g.:
html[data-useragent*='Chrome/13.0'] .nav{
background:url(img/radial_grad.png) center bottom no-repeat;
}
If possible, avoid browser targeting. Identify and fix any issue(s) you identify. Support progressive enhancement and graceful degradation. With that in mind, this is an 'ideal world' scenario not always obtainable in a production environment, as such- the above should help provide some good options.
You need to install mysql server for your machine first. Once done, you will be able to add local db details to it.
For e.g. IP: 127.0.0.1
port: 3306
user: root
pass: pass of root which you have set
Here is the link on step by step guide for linux.
https://support.rackspace.com/how-to/install-mysql-server-on-the-ubuntu-operating-system/
While all the suggestions above are working, sometimes I need to have an empty selection (showing placeholder text) when initially enter my screen. So, to prevent select box from adding this empty selection at the beginning (or sometimes at the end) of my list I am using this trick:
<div ng-app="MyApp1">
<div ng-controller="MyController">
<input type="text" ng-model="feed.name" placeholder="Name" />
<select ng-model="feed.config" ng-options="template.value as template.name for template in feed.configs" placeholder="Config">
<option value="" selected hidden />
</select>
</div>
</div>
Now you have defined this empty option, so select box is happy, but you keep it hidden.
SqlConnection con = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=E:\Samples\MyApp\C#\bin\Debug\Login.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True");
this is working for me... Is there any way to short the path? like
SqlConnection con = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=\bin\Debug\Login.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True");
DirectoryInfo dirinfo = new DirectoryInfo(strMainPath);
String[] exts = new string[] { "*.jpeg", "*.jpg", "*.gif", "*.tiff", "*.bmp","*.png", "*.JPEG", "*.JPG", "*.GIF", "*.TIFF", "*.BMP","*.PNG" };
ArrayList files = new ArrayList();
foreach (string ext in exts)
files.AddRange(dirinfo.GetFiles(ext).OrderBy(x => x.CreationTime).ToArray());
In Kotlin:
enum class Status(val id: Int) {
NEW(0), VISIT(1), IN_WORK(2), FINISHED(3), CANCELLED(4), DUMMY(5);
companion object {
private val statuses = Status.values().associateBy(Status::id)
fun getStatus(id: Int): Status? = statuses[id]
}
}
Usage:
val status = Status.getStatus(1)!!
You can get with node.getScene
, if you don't call from Platform.runLater
, the result is a null value.
example null value:
node.getScene();
example no null value:
Platform.runLater(() -> {
node.getScene().addEventFilter(KeyEvent.KEY_PRESSED, event -> {
//your event
});
});
To assign multiple classes to an html element, include both class names within the quotations of the class attribute and have them separated by a space:
<article class="column wrapper">
In the above example, column
and wrapper
are two separate css classes, and both of their properties will be applied to the article
element.
The cleanest way is:
List<XXX> lstConsultada = dao.findByPropertyList(YYY);
List<XXX> lstFinal = new ArrayList<XXX>(new LinkedHashSet<GrupoOrigen>(XXX));
and override hascode
and equals
over the Id's properties of each entity
Easy, simply wrap a MemoryStream
around it:
Stream stream = new MemoryStream(buffer);
.contextmenu method :-
Try as follows
<div id="wrap">Right click</div>
<script>
$('#wrap').contextmenu(function() {
alert("Right click");
});
</script>
.mousedown method:-
$('#wrap').mousedown(function(event) {
if(event.which == 3){
alert('Right Mouse button pressed.');
}
});
If you are on a Mac or BSD or something else without the --date option, you can use:
date -r `expr \`date +%s\` - 86400` '+%a %d/%m/%Y'
Update: or perhaps...
date -r $((`date +%s` - 86400)) '+%a %d/%m/%Y'
all previous answers are correct but here is one solution which is just deleteing all of your images forcefully (use this command at your own risk it will delete all of your images)
docker rmi $(docker images -q) -f
If you are not into long explanations, see Paolo Bergantino’s answer.
To understand decorators, you must first understand that functions are objects in Python. This has important consequences. Let’s see why with a simple example :
def shout(word="yes"):
return word.capitalize()+"!"
print(shout())
# outputs : 'Yes!'
# As an object, you can assign the function to a variable like any other object
scream = shout
# Notice we don't use parentheses: we are not calling the function,
# we are putting the function "shout" into the variable "scream".
# It means you can then call "shout" from "scream":
print(scream())
# outputs : 'Yes!'
# More than that, it means you can remove the old name 'shout',
# and the function will still be accessible from 'scream'
del shout
try:
print(shout())
except NameError as e:
print(e)
#outputs: "name 'shout' is not defined"
print(scream())
# outputs: 'Yes!'
Keep this in mind. We’ll circle back to it shortly.
Another interesting property of Python functions is they can be defined inside another function!
def talk():
# You can define a function on the fly in "talk" ...
def whisper(word="yes"):
return word.lower()+"..."
# ... and use it right away!
print(whisper())
# You call "talk", that defines "whisper" EVERY TIME you call it, then
# "whisper" is called in "talk".
talk()
# outputs:
# "yes..."
# But "whisper" DOES NOT EXIST outside "talk":
try:
print(whisper())
except NameError as e:
print(e)
#outputs : "name 'whisper' is not defined"*
#Python's functions are objects
Okay, still here? Now the fun part...
You’ve seen that functions are objects. Therefore, functions:
That means that a function can return
another function.
def getTalk(kind="shout"):
# We define functions on the fly
def shout(word="yes"):
return word.capitalize()+"!"
def whisper(word="yes") :
return word.lower()+"...";
# Then we return one of them
if kind == "shout":
# We don't use "()", we are not calling the function,
# we are returning the function object
return shout
else:
return whisper
# How do you use this strange beast?
# Get the function and assign it to a variable
talk = getTalk()
# You can see that "talk" is here a function object:
print(talk)
#outputs : <function shout at 0xb7ea817c>
# The object is the one returned by the function:
print(talk())
#outputs : Yes!
# And you can even use it directly if you feel wild:
print(getTalk("whisper")())
#outputs : yes...
There’s more!
If you can return
a function, you can pass one as a parameter:
def doSomethingBefore(func):
print("I do something before then I call the function you gave me")
print(func())
doSomethingBefore(scream)
#outputs:
#I do something before then I call the function you gave me
#Yes!
Well, you just have everything needed to understand decorators. You see, decorators are “wrappers”, which means that they let you execute code before and after the function they decorate without modifying the function itself.
How you’d do it manually:
# A decorator is a function that expects ANOTHER function as parameter
def my_shiny_new_decorator(a_function_to_decorate):
# Inside, the decorator defines a function on the fly: the wrapper.
# This function is going to be wrapped around the original function
# so it can execute code before and after it.
def the_wrapper_around_the_original_function():
# Put here the code you want to be executed BEFORE the original function is called
print("Before the function runs")
# Call the function here (using parentheses)
a_function_to_decorate()
# Put here the code you want to be executed AFTER the original function is called
print("After the function runs")
# At this point, "a_function_to_decorate" HAS NEVER BEEN EXECUTED.
# We return the wrapper function we have just created.
# The wrapper contains the function and the code to execute before and after. It’s ready to use!
return the_wrapper_around_the_original_function
# Now imagine you create a function you don't want to ever touch again.
def a_stand_alone_function():
print("I am a stand alone function, don't you dare modify me")
a_stand_alone_function()
#outputs: I am a stand alone function, don't you dare modify me
# Well, you can decorate it to extend its behavior.
# Just pass it to the decorator, it will wrap it dynamically in
# any code you want and return you a new function ready to be used:
a_stand_alone_function_decorated = my_shiny_new_decorator(a_stand_alone_function)
a_stand_alone_function_decorated()
#outputs:
#Before the function runs
#I am a stand alone function, don't you dare modify me
#After the function runs
Now, you probably want that every time you call a_stand_alone_function
, a_stand_alone_function_decorated
is called instead. That’s easy, just overwrite a_stand_alone_function
with the function returned by my_shiny_new_decorator
:
a_stand_alone_function = my_shiny_new_decorator(a_stand_alone_function)
a_stand_alone_function()
#outputs:
#Before the function runs
#I am a stand alone function, don't you dare modify me
#After the function runs
# That’s EXACTLY what decorators do!
The previous example, using the decorator syntax:
@my_shiny_new_decorator
def another_stand_alone_function():
print("Leave me alone")
another_stand_alone_function()
#outputs:
#Before the function runs
#Leave me alone
#After the function runs
Yes, that’s all, it’s that simple. @decorator
is just a shortcut to:
another_stand_alone_function = my_shiny_new_decorator(another_stand_alone_function)
Decorators are just a pythonic variant of the decorator design pattern. There are several classic design patterns embedded in Python to ease development (like iterators).
Of course, you can accumulate decorators:
def bread(func):
def wrapper():
print("</''''''\>")
func()
print("<\______/>")
return wrapper
def ingredients(func):
def wrapper():
print("#tomatoes#")
func()
print("~salad~")
return wrapper
def sandwich(food="--ham--"):
print(food)
sandwich()
#outputs: --ham--
sandwich = bread(ingredients(sandwich))
sandwich()
#outputs:
#</''''''\>
# #tomatoes#
# --ham--
# ~salad~
#<\______/>
Using the Python decorator syntax:
@bread
@ingredients
def sandwich(food="--ham--"):
print(food)
sandwich()
#outputs:
#</''''''\>
# #tomatoes#
# --ham--
# ~salad~
#<\______/>
The order you set the decorators MATTERS:
@ingredients
@bread
def strange_sandwich(food="--ham--"):
print(food)
strange_sandwich()
#outputs:
##tomatoes#
#</''''''\>
# --ham--
#<\______/>
# ~salad~
As a conclusion, you can easily see how to answer the question:
# The decorator to make it bold
def makebold(fn):
# The new function the decorator returns
def wrapper():
# Insertion of some code before and after
return "<b>" + fn() + "</b>"
return wrapper
# The decorator to make it italic
def makeitalic(fn):
# The new function the decorator returns
def wrapper():
# Insertion of some code before and after
return "<i>" + fn() + "</i>"
return wrapper
@makebold
@makeitalic
def say():
return "hello"
print(say())
#outputs: <b><i>hello</i></b>
# This is the exact equivalent to
def say():
return "hello"
say = makebold(makeitalic(say))
print(say())
#outputs: <b><i>hello</i></b>
You can now just leave happy, or burn your brain a little bit more and see advanced uses of decorators.
# It’s not black magic, you just have to let the wrapper
# pass the argument:
def a_decorator_passing_arguments(function_to_decorate):
def a_wrapper_accepting_arguments(arg1, arg2):
print("I got args! Look: {0}, {1}".format(arg1, arg2))
function_to_decorate(arg1, arg2)
return a_wrapper_accepting_arguments
# Since when you are calling the function returned by the decorator, you are
# calling the wrapper, passing arguments to the wrapper will let it pass them to
# the decorated function
@a_decorator_passing_arguments
def print_full_name(first_name, last_name):
print("My name is {0} {1}".format(first_name, last_name))
print_full_name("Peter", "Venkman")
# outputs:
#I got args! Look: Peter Venkman
#My name is Peter Venkman
One nifty thing about Python is that methods and functions are really the same. The only difference is that methods expect that their first argument is a reference to the current object (self
).
That means you can build a decorator for methods the same way! Just remember to take self
into consideration:
def method_friendly_decorator(method_to_decorate):
def wrapper(self, lie):
lie = lie - 3 # very friendly, decrease age even more :-)
return method_to_decorate(self, lie)
return wrapper
class Lucy(object):
def __init__(self):
self.age = 32
@method_friendly_decorator
def sayYourAge(self, lie):
print("I am {0}, what did you think?".format(self.age + lie))
l = Lucy()
l.sayYourAge(-3)
#outputs: I am 26, what did you think?
If you’re making general-purpose decorator--one you’ll apply to any function or method, no matter its arguments--then just use *args, **kwargs
:
def a_decorator_passing_arbitrary_arguments(function_to_decorate):
# The wrapper accepts any arguments
def a_wrapper_accepting_arbitrary_arguments(*args, **kwargs):
print("Do I have args?:")
print(args)
print(kwargs)
# Then you unpack the arguments, here *args, **kwargs
# If you are not familiar with unpacking, check:
# http://www.saltycrane.com/blog/2008/01/how-to-use-args-and-kwargs-in-python/
function_to_decorate(*args, **kwargs)
return a_wrapper_accepting_arbitrary_arguments
@a_decorator_passing_arbitrary_arguments
def function_with_no_argument():
print("Python is cool, no argument here.")
function_with_no_argument()
#outputs
#Do I have args?:
#()
#{}
#Python is cool, no argument here.
@a_decorator_passing_arbitrary_arguments
def function_with_arguments(a, b, c):
print(a, b, c)
function_with_arguments(1,2,3)
#outputs
#Do I have args?:
#(1, 2, 3)
#{}
#1 2 3
@a_decorator_passing_arbitrary_arguments
def function_with_named_arguments(a, b, c, platypus="Why not ?"):
print("Do {0}, {1} and {2} like platypus? {3}".format(a, b, c, platypus))
function_with_named_arguments("Bill", "Linus", "Steve", platypus="Indeed!")
#outputs
#Do I have args ? :
#('Bill', 'Linus', 'Steve')
#{'platypus': 'Indeed!'}
#Do Bill, Linus and Steve like platypus? Indeed!
class Mary(object):
def __init__(self):
self.age = 31
@a_decorator_passing_arbitrary_arguments
def sayYourAge(self, lie=-3): # You can now add a default value
print("I am {0}, what did you think?".format(self.age + lie))
m = Mary()
m.sayYourAge()
#outputs
# Do I have args?:
#(<__main__.Mary object at 0xb7d303ac>,)
#{}
#I am 28, what did you think?
Great, now what would you say about passing arguments to the decorator itself?
This can get somewhat twisted, since a decorator must accept a function as an argument. Therefore, you cannot pass the decorated function’s arguments directly to the decorator.
Before rushing to the solution, let’s write a little reminder:
# Decorators are ORDINARY functions
def my_decorator(func):
print("I am an ordinary function")
def wrapper():
print("I am function returned by the decorator")
func()
return wrapper
# Therefore, you can call it without any "@"
def lazy_function():
print("zzzzzzzz")
decorated_function = my_decorator(lazy_function)
#outputs: I am an ordinary function
# It outputs "I am an ordinary function", because that’s just what you do:
# calling a function. Nothing magic.
@my_decorator
def lazy_function():
print("zzzzzzzz")
#outputs: I am an ordinary function
It’s exactly the same. "my_decorator
" is called. So when you @my_decorator
, you are telling Python to call the function 'labelled by the variable "my_decorator
"'.
This is important! The label you give can point directly to the decorator—or not.
Let’s get evil. ?
def decorator_maker():
print("I make decorators! I am executed only once: "
"when you make me create a decorator.")
def my_decorator(func):
print("I am a decorator! I am executed only when you decorate a function.")
def wrapped():
print("I am the wrapper around the decorated function. "
"I am called when you call the decorated function. "
"As the wrapper, I return the RESULT of the decorated function.")
return func()
print("As the decorator, I return the wrapped function.")
return wrapped
print("As a decorator maker, I return a decorator")
return my_decorator
# Let’s create a decorator. It’s just a new function after all.
new_decorator = decorator_maker()
#outputs:
#I make decorators! I am executed only once: when you make me create a decorator.
#As a decorator maker, I return a decorator
# Then we decorate the function
def decorated_function():
print("I am the decorated function.")
decorated_function = new_decorator(decorated_function)
#outputs:
#I am a decorator! I am executed only when you decorate a function.
#As the decorator, I return the wrapped function
# Let’s call the function:
decorated_function()
#outputs:
#I am the wrapper around the decorated function. I am called when you call the decorated function.
#As the wrapper, I return the RESULT of the decorated function.
#I am the decorated function.
No surprise here.
Let’s do EXACTLY the same thing, but skip all the pesky intermediate variables:
def decorated_function():
print("I am the decorated function.")
decorated_function = decorator_maker()(decorated_function)
#outputs:
#I make decorators! I am executed only once: when you make me create a decorator.
#As a decorator maker, I return a decorator
#I am a decorator! I am executed only when you decorate a function.
#As the decorator, I return the wrapped function.
# Finally:
decorated_function()
#outputs:
#I am the wrapper around the decorated function. I am called when you call the decorated function.
#As the wrapper, I return the RESULT of the decorated function.
#I am the decorated function.
Let’s make it even shorter:
@decorator_maker()
def decorated_function():
print("I am the decorated function.")
#outputs:
#I make decorators! I am executed only once: when you make me create a decorator.
#As a decorator maker, I return a decorator
#I am a decorator! I am executed only when you decorate a function.
#As the decorator, I return the wrapped function.
#Eventually:
decorated_function()
#outputs:
#I am the wrapper around the decorated function. I am called when you call the decorated function.
#As the wrapper, I return the RESULT of the decorated function.
#I am the decorated function.
Hey, did you see that? We used a function call with the "@
" syntax! :-)
So, back to decorators with arguments. If we can use functions to generate the decorator on the fly, we can pass arguments to that function, right?
def decorator_maker_with_arguments(decorator_arg1, decorator_arg2):
print("I make decorators! And I accept arguments: {0}, {1}".format(decorator_arg1, decorator_arg2))
def my_decorator(func):
# The ability to pass arguments here is a gift from closures.
# If you are not comfortable with closures, you can assume it’s ok,
# or read: https://stackoverflow.com/questions/13857/can-you-explain-closures-as-they-relate-to-python
print("I am the decorator. Somehow you passed me arguments: {0}, {1}".format(decorator_arg1, decorator_arg2))
# Don't confuse decorator arguments and function arguments!
def wrapped(function_arg1, function_arg2) :
print("I am the wrapper around the decorated function.\n"
"I can access all the variables\n"
"\t- from the decorator: {0} {1}\n"
"\t- from the function call: {2} {3}\n"
"Then I can pass them to the decorated function"
.format(decorator_arg1, decorator_arg2,
function_arg1, function_arg2))
return func(function_arg1, function_arg2)
return wrapped
return my_decorator
@decorator_maker_with_arguments("Leonard", "Sheldon")
def decorated_function_with_arguments(function_arg1, function_arg2):
print("I am the decorated function and only knows about my arguments: {0}"
" {1}".format(function_arg1, function_arg2))
decorated_function_with_arguments("Rajesh", "Howard")
#outputs:
#I make decorators! And I accept arguments: Leonard Sheldon
#I am the decorator. Somehow you passed me arguments: Leonard Sheldon
#I am the wrapper around the decorated function.
#I can access all the variables
# - from the decorator: Leonard Sheldon
# - from the function call: Rajesh Howard
#Then I can pass them to the decorated function
#I am the decorated function and only knows about my arguments: Rajesh Howard
Here it is: a decorator with arguments. Arguments can be set as variable:
c1 = "Penny"
c2 = "Leslie"
@decorator_maker_with_arguments("Leonard", c1)
def decorated_function_with_arguments(function_arg1, function_arg2):
print("I am the decorated function and only knows about my arguments:"
" {0} {1}".format(function_arg1, function_arg2))
decorated_function_with_arguments(c2, "Howard")
#outputs:
#I make decorators! And I accept arguments: Leonard Penny
#I am the decorator. Somehow you passed me arguments: Leonard Penny
#I am the wrapper around the decorated function.
#I can access all the variables
# - from the decorator: Leonard Penny
# - from the function call: Leslie Howard
#Then I can pass them to the decorated function
#I am the decorated function and only know about my arguments: Leslie Howard
As you can see, you can pass arguments to the decorator like any function using this trick. You can even use *args, **kwargs
if you wish. But remember decorators are called only once. Just when Python imports the script. You can't dynamically set the arguments afterwards. When you do "import x", the function is already decorated, so you can't
change anything.
Okay, as a bonus, I'll give you a snippet to make any decorator accept generically any argument. After all, in order to accept arguments, we created our decorator using another function.
We wrapped the decorator.
Anything else we saw recently that wrapped function?
Oh yes, decorators!
Let’s have some fun and write a decorator for the decorators:
def decorator_with_args(decorator_to_enhance):
"""
This function is supposed to be used as a decorator.
It must decorate an other function, that is intended to be used as a decorator.
Take a cup of coffee.
It will allow any decorator to accept an arbitrary number of arguments,
saving you the headache to remember how to do that every time.
"""
# We use the same trick we did to pass arguments
def decorator_maker(*args, **kwargs):
# We create on the fly a decorator that accepts only a function
# but keeps the passed arguments from the maker.
def decorator_wrapper(func):
# We return the result of the original decorator, which, after all,
# IS JUST AN ORDINARY FUNCTION (which returns a function).
# Only pitfall: the decorator must have this specific signature or it won't work:
return decorator_to_enhance(func, *args, **kwargs)
return decorator_wrapper
return decorator_maker
It can be used as follows:
# You create the function you will use as a decorator. And stick a decorator on it :-)
# Don't forget, the signature is "decorator(func, *args, **kwargs)"
@decorator_with_args
def decorated_decorator(func, *args, **kwargs):
def wrapper(function_arg1, function_arg2):
print("Decorated with {0} {1}".format(args, kwargs))
return func(function_arg1, function_arg2)
return wrapper
# Then you decorate the functions you wish with your brand new decorated decorator.
@decorated_decorator(42, 404, 1024)
def decorated_function(function_arg1, function_arg2):
print("Hello {0} {1}".format(function_arg1, function_arg2))
decorated_function("Universe and", "everything")
#outputs:
#Decorated with (42, 404, 1024) {}
#Hello Universe and everything
# Whoooot!
I know, the last time you had this feeling, it was after listening a guy saying: "before understanding recursion, you must first understand recursion". But now, don't you feel good about mastering this?
The functools
module was introduced in Python 2.5. It includes the function functools.wraps()
, which copies the name, module, and docstring of the decorated function to its wrapper.
(Fun fact: functools.wraps()
is a decorator! ?)
# For debugging, the stacktrace prints you the function __name__
def foo():
print("foo")
print(foo.__name__)
#outputs: foo
# With a decorator, it gets messy
def bar(func):
def wrapper():
print("bar")
return func()
return wrapper
@bar
def foo():
print("foo")
print(foo.__name__)
#outputs: wrapper
# "functools" can help for that
import functools
def bar(func):
# We say that "wrapper", is wrapping "func"
# and the magic begins
@functools.wraps(func)
def wrapper():
print("bar")
return func()
return wrapper
@bar
def foo():
print("foo")
print(foo.__name__)
#outputs: foo
Now the big question: What can I use decorators for?
Seem cool and powerful, but a practical example would be great. Well, there are 1000 possibilities. Classic uses are extending a function behavior from an external lib (you can't modify it), or for debugging (you don't want to modify it because it’s temporary).
You can use them to extend several functions in a DRY’s way, like so:
def benchmark(func):
"""
A decorator that prints the time a function takes
to execute.
"""
import time
def wrapper(*args, **kwargs):
t = time.clock()
res = func(*args, **kwargs)
print("{0} {1}".format(func.__name__, time.clock()-t))
return res
return wrapper
def logging(func):
"""
A decorator that logs the activity of the script.
(it actually just prints it, but it could be logging!)
"""
def wrapper(*args, **kwargs):
res = func(*args, **kwargs)
print("{0} {1} {2}".format(func.__name__, args, kwargs))
return res
return wrapper
def counter(func):
"""
A decorator that counts and prints the number of times a function has been executed
"""
def wrapper(*args, **kwargs):
wrapper.count = wrapper.count + 1
res = func(*args, **kwargs)
print("{0} has been used: {1}x".format(func.__name__, wrapper.count))
return res
wrapper.count = 0
return wrapper
@counter
@benchmark
@logging
def reverse_string(string):
return str(reversed(string))
print(reverse_string("Able was I ere I saw Elba"))
print(reverse_string("A man, a plan, a canoe, pasta, heros, rajahs, a coloratura, maps, snipe, percale, macaroni, a gag, a banana bag, a tan, a tag, a banana bag again (or a camel), a crepe, pins, Spam, a rut, a Rolo, cash, a jar, sore hats, a peon, a canal: Panama!"))
#outputs:
#reverse_string ('Able was I ere I saw Elba',) {}
#wrapper 0.0
#wrapper has been used: 1x
#ablE was I ere I saw elbA
#reverse_string ('A man, a plan, a canoe, pasta, heros, rajahs, a coloratura, maps, snipe, percale, macaroni, a gag, a banana bag, a tan, a tag, a banana bag again (or a camel), a crepe, pins, Spam, a rut, a Rolo, cash, a jar, sore hats, a peon, a canal: Panama!',) {}
#wrapper 0.0
#wrapper has been used: 2x
#!amanaP :lanac a ,noep a ,stah eros ,raj a ,hsac ,oloR a ,tur a ,mapS ,snip ,eperc a ,)lemac a ro( niaga gab ananab a ,gat a ,nat a ,gab ananab a ,gag a ,inoracam ,elacrep ,epins ,spam ,arutaroloc a ,shajar ,soreh ,atsap ,eonac a ,nalp a ,nam A
Of course the good thing with decorators is that you can use them right away on almost anything without rewriting. DRY, I said:
@counter
@benchmark
@logging
def get_random_futurama_quote():
from urllib import urlopen
result = urlopen("http://subfusion.net/cgi-bin/quote.pl?quote=futurama").read()
try:
value = result.split("<br><b><hr><br>")[1].split("<br><br><hr>")[0]
return value.strip()
except:
return "No, I'm ... doesn't!"
print(get_random_futurama_quote())
print(get_random_futurama_quote())
#outputs:
#get_random_futurama_quote () {}
#wrapper 0.02
#wrapper has been used: 1x
#The laws of science be a harsh mistress.
#get_random_futurama_quote () {}
#wrapper 0.01
#wrapper has been used: 2x
#Curse you, merciful Poseidon!
Python itself provides several decorators: property
, staticmethod
, etc.
This really is a large playground.
\includegraphics<1>{A}%
\includegraphics<2>{B}%
\includegraphics<3>{C}%
The % is important. This will keep all the images fixed.
f you want to use $.getJSON() you can add the following before the call :
$.ajaxSetup({
scriptCharset: "utf-8",
contentType: "application/json; charset=utf-8"
});
There are probably embedded tabs (CHAR(9)
) etc. as well. You can find out what other characters you need to replace (we have no idea what your goal is) with something like this:
DECLARE @var NVARCHAR(255), @i INT;
SET @i = 1;
SELECT @var = AccountType FROM dbo.Account
WHERE AccountNumber = 200
AND AccountType LIKE '%Daily%';
CREATE TABLE #x(i INT PRIMARY KEY, c NCHAR(1), a NCHAR(1));
WHILE @i <= LEN(@var)
BEGIN
INSERT #x
SELECT SUBSTRING(@var, @i, 1), ASCII(SUBSTRING(@var, @i, 1));
SET @i = @i + 1;
END
SELECT i,c,a FROM #x ORDER BY i;
You might also consider doing better cleansing of this data before it gets into your database. Cleaning it every time you need to search or display is not the best approach.
I start applications that I want to run persistently or at least semi-permanently via screen -dmS NAME /path/to/script. As far as I am informed this is the most elegant solution.
You can design a range method that increments a 'from' number by a desired amount until it reaches a 'to' number. This example will 'count' up or down, depending on whether from is larger or smaller than to.
Array.range= function(from, to, step){
if(typeof from== 'number'){
var A= [from];
step= typeof step== 'number'? Math.abs(step):1;
if(from> to){
while((from -= step)>= to) A.push(from);
}
else{
while((from += step)<= to) A.push(from);
}
return A;
}
}
If you ever want to step by a decimal amount : Array.range(0,1,.01) you will need to truncate the values of any floating point imprecision. Otherwise you will return numbers like 0.060000000000000005 instead of .06.
This adds a little overhead to the other version, but works correctly for integer or decimal steps.
Array.range= function(from, to, step, prec){
if(typeof from== 'number'){
var A= [from];
step= typeof step== 'number'? Math.abs(step):1;
if(!prec){
prec= (from+step)%1? String((from+step)%1).length+1:0;
}
if(from> to){
while(+(from -= step).toFixed(prec)>= to) A.push(+from.toFixed(prec));
}
else{
while(+(from += step).toFixed(prec)<= to) A.push(+from.toFixed(prec));
}
return A;
}
}
If the lines are all of a fixed length you can use the Seek method of a stream to move to the correct starting positiion.
If the lines are of a variable length your options are more limited.
If this is a file you will be only using once and then discarding, then you are best off reading it in and working with it in memeory.
If this is a file you will keeping and will be reading from more than writing to, you can create a custom index file that contains the starting positions of each line. Then use that index to get your Seek position. The process of creating the index file is resource intensive. Everytime you add a new line to the file you will need to update the index, so maintenance becomes a non-trivial issue.
val() is more like a shortcut for attr('value'). For your usage use text() or html() instead
I'll try to answer the why question: The Java array is very simple and rudimentary compared to classes like ArrayList, that are more dynamic. Java wants to know at declaration time how much memory should be allocated for the array. An ArrayList is much more dynamic and the size of it can vary over time.
If you initialize your array with the length of two, and later on it turns out you need a length of three, you have to throw away what you've got, and create a whole new array. Therefore the 'new' keyword.
In your first two examples, you tell at declaration time how much memory to allocate. In your third example, the array name becomes a pointer to nothing at all, and therefore, when it's initialized, you have to explicitly create a new array to allocate the right amount of memory.
I would say that (and if someone knows better, please correct me) the first example
AClass[] array = {object1, object2}
actually means
AClass[] array = new AClass[]{object1, object2};
but what the Java designers did, was to make quicker way to write it if you create the array at declaration time.
The suggested workarounds are good. If the time or memory usage is critical at runtime, use arrays. If it's not critical, and you want code that is easier to understand and to work with, use ArrayList.
Yes when i try it with View it provides the result of 25px. Here is the whole code :
public class SpinActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LinearLayout lySpin = new LinearLayout(this);
lySpin.setOrientation(LinearLayout.VERTICAL);
lySpin.post(new Runnable()
{
public void run()
{
Rect rect = new Rect();
Window window = getWindow();
window.getDecorView().getWindowVisibleDisplayFrame(rect);
int statusBarHeight = rect.top;
int contentViewTop =
window.findViewById(Window.ID_ANDROID_CONTENT).getTop();
int titleBarHeight = contentViewTop - statusBarHeight;
System.out.println("TitleBarHeight: " + titleBarHeight
+ ", StatusBarHeight: " + statusBarHeight);
}
}
}
}
I'd check out SQLAlchemy
It's really easy to use and the models you work with aren't bad at all. Django uses SQLAlchemy for it's ORM but using it by itself lets you use it's full power.
Here's a small example on creating and selecting orm objects
>>> ed_user = User('ed', 'Ed Jones', 'edspassword')
>>> session.add(ed_user)
>>> our_user = session.query(User).filter_by(name='ed').first()
>>> our_user
<User('ed','Ed Jones', 'edspassword')>
Those methods to tell if a function is implemented also fail if variable is not defined so we are using something more powerful that supports receiving an string:
function isFunctionDefined(functionName) {
if(eval("typeof(" + functionName + ") == typeof(Function)")) {
return true;
}
}
if (isFunctionDefined('myFunction')) {
myFunction(foo);
}
import java.io.*;
public class Code {
public static void main(String[] args) throws Exception {
ProcessBuilder builder = new ProcessBuilder("ls", "-ltr");
Process process = builder.start();
StringBuilder out = new StringBuilder();
try (BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()))) {
String line = null;
while ((line = reader.readLine()) != null) {
out.append(line);
out.append("\n");
}
System.out.println(out);
}
}
}
This should work:
$("#table-filters>ul>li.active").removeClass("active");
//Find all `li`s with class `active`, children of `ul`s, children of `table-filters`
For those working with AWS MySQL RDS, it may occur when you are unable to connect to the database. Go to AWS Security Groups setting for MySQL RDS and edit the inbound IP rule by refreshing MyIP.
I faced this issue and doing above got the problem fixed for me.
Couldn't you just do this?
var things = [
{ id: 1, color: 'yellow' },
{ id: 2, color: 'blue' },
{ id: 3, color: 'red' }
];
$.post('@Url.Action("PassThings")', { things: things },
function () {
$('#result').html('"PassThings()" successfully called.');
});
...and mark your action with
[HttpPost]
public void PassThings(IEnumerable<Thing> things)
{
// do stuff with things here...
}
I had this problem. I solved it with downloading 64x of the Java. Here is the link: http://javadl.sun.com/webapps/download/AutoDL?BundleId=87443
C99 defines bool, true
and false
in stdbool.h
.
No more tiresome/inefficient ascii checks on strings, new built-in str
/bytes
/bytearray
method - .isascii()
will check if the strings is ascii.
print("is this ascii?".isascii())
# True
I use this:
@var.respond_to?(:keys)
It works for Hash and ActiveSupport::HashWithIndifferentAccess.
Aggregated List of Libraries
You could use convert from the hablar package:
library(dplyr)
library(hablar)
# Sample df (stolen from the solution by Luca Braglia)
df <- tibble("a" = as.character(0:5),
"b" = paste(0:5, ".1", sep = ""),
"c" = letters[1:6])
# insert variable names in num()
df %>% convert(num(a, b))
Which gives you:
# A tibble: 6 x 3
a b c
<dbl> <dbl> <chr>
1 0. 0.100 a
2 1. 1.10 b
3 2. 2.10 c
4 3. 3.10 d
5 4. 4.10 e
6 5. 5.10 f
Or if you are lazy, let retype() from hablar guess the right data type:
df %>% retype()
which gives you:
# A tibble: 6 x 3
a b c
<int> <dbl> <chr>
1 0 0.100 a
2 1 1.10 b
3 2 2.10 c
4 3 3.10 d
5 4 4.10 e
6 5 5.10 f
There is a command line argument parser at http://www.codeplex.com/commonlibrarynet
It can parse arguments using
1. attributes
2. explicit calls
3. single line of multiple arguments OR string array
It can handle things like the following:
-config:Qa -startdate:${today} -region:'New York' Settings01
It's very easy to use.
user-scalable:
user-scalable=yes (default) to allow the user to zoom in or out on the web page;
user-scalable=no to prevent the user from zooming in or out.
You can get more detailed information by reading the following articles.
<!DOCTYPE html>_x000D_
<html lang="en">_x000D_
<head>_x000D_
<meta charset="UTF-8">_x000D_
<meta http-equiv="X-UA-Compatible" content="IE=edge">_x000D_
<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=0.5, maximum-scale=3.0">_x000D_
</head>_x000D_
<body>_x000D_
<header>_x000D_
</header>_x000D_
<main>_x000D_
<section>_x000D_
<h1>do not using <mark>user-scalable=no</mark></h1>_x000D_
</section>_x000D_
</main>_x000D_
<footer>_x000D_
</footer>_x000D_
</body>_x000D_
</html>
_x000D_
You need to use a graphics library. Put this in your preamble:
\usepackage{graphicx}
You can then add images like this:
\begin{figure}[ht!]
\centering
\includegraphics[width=90mm]{fixed_dome1.jpg}
\caption{A simple caption \label{overflow}}
\end{figure}
This is the basic template I use in my documents. The position and size should be tweaked for your needs. Refer to the guide below for more information on what parameters to use in \figure
and \includegraphics
. You can then refer to the image in your text using the label you gave in the figure:
And here we see figure \ref{overflow}.
Read this guide here for a more detailed instruction: http://en.wikibooks.org/wiki/LaTeX/Floats,_Figures_and_Captions
Previous anwser works fine. I would just add that you dont need to specify CURLOPT_POSTFIELDS as "xmlRequest=" . $input_xml
to read your $_POST. You can use file_get_contents('php://input')
to get the raw post data as plain XML.
1D array of primitives does copy elements when it is cloned. This tempts us to clone 2D array(Array of Arrays).
Remember that 2D array clone doesn't work due to shallow copy implementation of clone()
.
public static void main(String[] args) {
int row1[] = {0,1,2,3};
int row2[] = row1.clone();
row2[0] = 10;
System.out.println(row1[0] == row2[0]); // prints false
int table1[][]={{0,1,2,3},{11,12,13,14}};
int table2[][] = table1.clone();
table2[0][0] = 100;
System.out.println(table1[0][0] == table2[0][0]); //prints true
}
As already mentioned its just a facade and it helps to switch between different logger implementation easily. For example if you want to use log4j implementation.
A sample code would looks like below.
If you use maven get the dependencies
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.6</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.5</version>
</dependency>
Have the below in log4j.properties in location src/main/resources/log4j.properties
log4j.rootLogger=DEBUG, STDOUT, file
log4j.appender.STDOUT=org.apache.log4j.ConsoleAppender
log4j.appender.STDOUT.layout=org.apache.log4j.PatternLayout
log4j.appender.STDOUT.layout.ConversionPattern=%5p [%t] (%F:%L) - %m%n
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=mylogs.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{dd-MM-yyyy HH:mm:ss} %-5p %c{1}:%L - %m%n
Hello world code below would prints in console and to a log file as per above configuration.
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class HelloWorld {
public static void main(String[] args) {
Logger logger = LoggerFactory.getLogger(HelloWorld.class);
logger.info("Hello World");
}
}
1) local simplest methods
<?php
echo readfile("http://example.com/"); //needs "Allow_url_include" enabled
//OR
echo include("http://example.com/"); //needs "Allow_url_include" enabled
//OR
echo file_get_contents("http://example.com/");
//OR
echo stream_get_contents(fopen('http://example.com/', "rb")); //you may use "r" instead of "rb" //needs "Allow_url_fopen" enabled
?>
2) Better Way is CURL:
echo get_remote_data('http://example.com'); // GET request
echo get_remote_data('http://example.com', "var2=something&var3=blabla" ); // POST request
It automatically handles FOLLOWLOCATION problem + Remote urls:
src="./imageblabla.png"
turned into:src="http://example.com/path/imageblabla.png"
Code : https://github.com/tazotodua/useful-php-scripts/blob/master/get-remote-url-content-data.php
This would also happen when you are trying to restore a newer version backup in a older SQL database. For example when you try to restore a DB backup that is created in 2012 with 110 compatibility and you are trying to restore it in 2008 R2.
Using CliWrap:
var result = await Cli.Wrap("foobar.bat").ExecuteBufferedAsync();
var exitCode = result.ExitCode;
var stdOut = result.StandardOutput;
How about this?
CREATE FUNCTION dbo.StripWWWandCom (@input VARCHAR(250))
RETURNS VARCHAR(250)
AS BEGIN
DECLARE @Work VARCHAR(250)
SET @Work = @Input
SET @Work = REPLACE(@Work, 'www.', '')
SET @Work = REPLACE(@Work, '.com', '')
RETURN @work
END
and then use:
SELECT ID, dbo.StripWWWandCom (WebsiteName)
FROM dbo.YourTable .....
Of course, this is severely limited in that it will only strip www.
at the beginning and .com
at the end - nothing else (so it won't work on other host machine names like smtp.yahoo.com
and other internet domains such as .org
, .edu
, .de
and etc.)
One of the most common errors that I found developing Android Apps is the “java.lang.OutOfMemoryError: Bitmap Size Exceeds VM Budget” error. I found this error frequently on activities using lots of bitmaps after changing orientation: the Activity is destroyed, created again and the layouts are “inflated” from the XML consuming the VM memory available for bitmaps.
Bitmaps on the previous activity layout are not properly de-allocated by the garbage collector because they have crossed references to their activity. After many experiments I found a quite good solution for this problem.
First, set the “id” attribute on the parent view of your XML layout:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/RootView"
>
...
Then, on the onDestroy()
method of your Activity, call the unbindDrawables()
method passing a reference to the parent View and then do a System.gc()
.
@Override
protected void onDestroy() {
super.onDestroy();
unbindDrawables(findViewById(R.id.RootView));
System.gc();
}
private void unbindDrawables(View view) {
if (view.getBackground() != null) {
view.getBackground().setCallback(null);
}
if (view instanceof ViewGroup) {
for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {
unbindDrawables(((ViewGroup) view).getChildAt(i));
}
((ViewGroup) view).removeAllViews();
}
}
This unbindDrawables()
method explores the view tree recursively and:
You can easily get child itself and all of its decedents (children) with Jquery's Clone() method, just
var child = $('#div div:nth-child(1)').clone();
var child2 = $('#div div:nth-child(2)').clone();
You will get this for first query as asked in question
<div id="div1">
<p>Some Content</p>
</div>
If you want to remove the default value constraint, you can do:
ALTER TABLE <table> ALTER COLUMN <column> DROP DEFAULT;
Yes, there are negative effects from this:
If you script out a change blocked by this flag you get something like the script below (all i am turning the ID column in Contact into an autonumbered IDENTITY column, but the table has dependencies). Note potential errors that can occur while the following is running:
--
/* To prevent any potential data loss issues, you should review this script in detail before running it outside the context of the database designer.*/
BEGIN TRANSACTION
GO
ALTER TABLE raw.Contact
DROP CONSTRAINT fk_Contact_AddressType
GO
ALTER TABLE ref.ContactpointType SET (LOCK_ESCALATION = TABLE)
GO
COMMIT
BEGIN TRANSACTION
GO
ALTER TABLE raw.Contact
DROP CONSTRAINT fk_contact_profile
GO
ALTER TABLE raw.Profile SET (LOCK_ESCALATION = TABLE)
GO
COMMIT
BEGIN TRANSACTION
GO
CREATE TABLE raw.Tmp_Contact
(
ContactID int NOT NULL IDENTITY (1, 1),
ProfileID int NOT NULL,
AddressType char(2) NOT NULL,
ContactText varchar(250) NULL
) ON [PRIMARY]
GO
ALTER TABLE raw.Tmp_Contact SET (LOCK_ESCALATION = TABLE)
GO
SET IDENTITY_INSERT raw.Tmp_Contact ON
GO
IF EXISTS(SELECT * FROM raw.Contact)
EXEC('INSERT INTO raw.Tmp_Contact (ContactID, ProfileID, AddressType, ContactText)
SELECT ContactID, ProfileID, AddressType, ContactText FROM raw.Contact WITH (HOLDLOCK TABLOCKX)')
GO
SET IDENTITY_INSERT raw.Tmp_Contact OFF
GO
ALTER TABLE raw.PostalAddress
DROP CONSTRAINT fk_AddressProfile
GO
ALTER TABLE raw.MarketingFlag
DROP CONSTRAINT fk_marketingflag_contact
GO
ALTER TABLE raw.Phones
DROP CONSTRAINT fk_phones_contact
GO
DROP TABLE raw.Contact
GO
EXECUTE sp_rename N'raw.Tmp_Contact', N'Contact', 'OBJECT'
GO
ALTER TABLE raw.Contact ADD CONSTRAINT
Idx_Contact_1 PRIMARY KEY CLUSTERED
(
ProfileID,
ContactID
)
GO
ALTER TABLE raw.Contact ADD CONSTRAINT
Idx_Contact UNIQUE NONCLUSTERED
(
ProfileID,
ContactID
)
GO
CREATE NONCLUSTERED INDEX idx_Contact_0 ON raw.Contact
(
AddressType
)
GO
ALTER TABLE raw.Contact ADD CONSTRAINT
fk_contact_profile FOREIGN KEY
(
ProfileID
) REFERENCES raw.Profile
(
ProfileID
) ON UPDATE NO ACTION
ON DELETE NO ACTION
GO
ALTER TABLE raw.Contact ADD CONSTRAINT
fk_Contact_AddressType FOREIGN KEY
(
AddressType
) REFERENCES ref.ContactpointType
(
ContactPointTypeCode
) ON UPDATE NO ACTION
ON DELETE NO ACTION
GO
COMMIT
BEGIN TRANSACTION
GO
ALTER TABLE raw.Phones ADD CONSTRAINT
fk_phones_contact FOREIGN KEY
(
ProfileID,
PhoneID
) REFERENCES raw.Contact
(
ProfileID,
ContactID
) ON UPDATE NO ACTION
ON DELETE NO ACTION
GO
ALTER TABLE raw.Phones SET (LOCK_ESCALATION = TABLE)
GO
COMMIT
BEGIN TRANSACTION
GO
ALTER TABLE raw.MarketingFlag ADD CONSTRAINT
fk_marketingflag_contact FOREIGN KEY
(
ProfileID,
ContactID
) REFERENCES raw.Contact
(
ProfileID,
ContactID
) ON UPDATE NO ACTION
ON DELETE NO ACTION
GO
ALTER TABLE raw.MarketingFlag SET (LOCK_ESCALATION = TABLE)
GO
COMMIT
BEGIN TRANSACTION
GO
ALTER TABLE raw.PostalAddress ADD CONSTRAINT
fk_AddressProfile FOREIGN KEY
(
ProfileID,
AddressID
) REFERENCES raw.Contact
(
ProfileID,
ContactID
) ON UPDATE NO ACTION
ON DELETE NO ACTION
GO
ALTER TABLE raw.PostalAddress SET (LOCK_ESCALATION = TABLE)
GO
COMMIT
You may consider IaaS for file upload, such as Uploadcare. There is an Angular package for it: https://github.com/uploadcare/angular-uploadcare
Technically it's implemented as a directive, providing different options for uploading, and manipulations for uploaded images within the widget:
<uploadcare-widget
ng-model="object.image.info.uuid"
data-public-key="YOURKEYHERE"
data-locale="en"
data-tabs="file url"
data-images-only="true"
data-path-value="true"
data-preview-step="true"
data-clearable="true"
data-multiple="false"
data-crop="400:200"
on-upload-complete="onUCUploadComplete(info)"
on-widget-ready="onUCWidgetReady(widget)"
value="{{ object.image.info.cdnUrl }}"
/>
More configuration options to play with: https://uploadcare.com/widget/configure/
Feel free to use my form sheet controller MZFormSheetControllerfor iPhone, in example project there are many examples on how to present modal view controller which will not cover full window and has many presentation/transition styles.
You can also try newest version of MZFormSheetController which is called MZFormSheetPresentationController and have a lot of more features.
There is possibly a quicker way, but I would do:
a <- rnorm(100) # Our data
q <- quantile(a) # You can supply your own breaks, see ?quantile
# Define a simple function that checks in which quantile a number falls
getQuant <- function(x)
{
for (i in 1:(length(q)-1))
{
if (x>=q[i] && x<q[i+1])
break;
}
i
}
# Apply the function to the data
res <- unlist(lapply(as.matrix(a), getQuant))
One of the values you pass on to Ancestors
becomes None
at some point, it says, so check if otu
, tree
, tree[otu]
or tree[otu][0]
are None
in the beginning of the function instead of only checking tree[otu][0][0] == None
. But perhaps you should reconsider your path of action and the datatype in question to see if you could improve the structure somewhat.
>>> def log2( x ):
... return math.log( x ) / math.log( 2 )
...
>>> log2( 2 )
1.0
>>> log2( 4 )
2.0
>>> log2( 8 )
3.0
>>> log2( 2.4 )
1.2630344058337937
>>>
I use the approach with PATH variable. Path to Notepad++ is added to system's PATH variable and then core.editor is set like following:
git config --global core.editor notepad++
Also, you may add some additional parameters for Notepad++:
git config --global core.editor "notepad++.exe -multiInst"
(as I detailed in "Git core.editor
for Windows")
And here you can find some options you may use when stating Notepad++ Command Line Options.
"TypeScript Fundamentals" -- a Pluralsight video-course by Dan Wahlin and John Papa is a really good, presently (March 25, 2016) updated to reflect TypeScript 1.8, introduction to Typescript.
For me the really good features, beside the nice possibilities for intellisense, are the classes, interfaces, modules, the ease of implementing AMD, and the possibility to use the Visual Studio Typescript debugger when invoked with IE.
To summarize: If used as intended, Typescript can make JavaScript programming more reliable, and easier. It can increase the productivity of the JavaScript programmer significantly over the full SDLC.
I have just been in a similar position with regards to setting the 777 permissions on the apache website hosting directory. After a little bit of tinkering it seems that changing the group ownership of the folder to the "apache" group allowed access to the folder based on the user group.
1) make sure that the group ownership of the folder is set to the group apache used / generates for use. (check /etc/groups, mine was www-data on Ubuntu)
2) set the folder permissions to 774 to stop "everyone" from having any change access, but allowing the owner and group permissions required.
3) add your user account to the group that has permission on the folder (mine was www-data).
I kept having this problem whenever I tried to start an app pool more than once. Rather than rebooting, I simply run the Application Information Service. (Note: This service is set to run manually on my system, which may be the reason for the problem.) From its description, it seems obvious that it is somehow involved:
Facilitates the running of interactive applications with additional administrative privileges. If this service is stopped, users will be unable to launch applications with the additional administrative privileges they may require to perform desired user tasks.
Presumably, IIS manager (as well as most other processes running as an administrator) does not maintain admin privileges throughout the life of the process, but instead request admin rights from the Application Information service on a case-by-case basis.
Source: social.technech.microsoft.com
You cannot use the syntax you have suggested. If you have a C99 compiler, though, you can do this:
int *p;
p = malloc(3 * sizeof p[0]);
memcpy(p, (int []){ 0, 1, 2 }, 3 * sizeof p[0]);
If your compiler does not support C99 compound literals, you need to use a named template to copy from:
int *p;
p = malloc(3 * sizeof p[0]);
{
static const int p_init[] = { 0, 1, 2 };
memcpy(p, p_init, 3 * sizeof p[0]);
}
Assigning a variable to a function (without the parenthesis) copies the reference to the function. Putting the parenthesis at the end of a function name, calls the function, returning the functions return value.
function a() {
alert('A');
}
//alerts 'A', returns undefined
function b() {
alert('B');
return a;
}
//alerts 'B', returns function a
function c() {
alert('C');
return a();
}
//alerts 'C', alerts 'A', returns undefined
alert("Function 'a' returns " + a());
alert("Function 'b' returns " + b());
alert("Function 'c' returns " + c());
In your example, you are also defining functions within a function. Such as:
function d() {
function e() {
alert('E');
}
return e;
}
d()();
//alerts 'E'
The function is still callable. It still exists. This is used in JavaScript all the time. Functions can be passed around just like other values. Consider the following:
function counter() {
var count = 0;
return function() {
alert(count++);
}
}
var count = counter();
count();
count();
count();
The function count can keep the variables that were defined outside of it. This is called a closure. It's also used a lot in JavaScript.
I was trying to integrate the public IP Address into my workflow and these answers didn't help (I like to use the IDE as the IDE). But the above lead me to the solution (after about 2 hours of beating my head against a wall to get this to integrate with Visual Studio 2012 / Windows 8) here's what ended up working for me.
applicationhost.config generated by VisualStudio under C:\Users\usr\Documents\IISExpress\config
<site name="MySite" id="1">
<application path="/" applicationPool="Clr4IntegratedAppPool">
<virtualDirectory path="/" physicalPath="C:\Users\usr\Documents\Visual Studio 2012\Projects\MySite" />
</application>
<bindings>
<binding protocol="http" bindingInformation="*:8081:localhost" />
<binding protocol="http" bindingInformation="*:8082:localhost" />
<binding protocol="http" bindingInformation="*:8083:192.168.2.102" />
</bindings>
</site>
Administrator
so that it can bind to outside addresses (not local host)Administrator
so that it can start the process as an administrator allowing the binding to take place.The net result is you can browse to 192.168.2.102
in my case and test (for instance in an Android emulator. I really hope this helps someone else as this was definitely an irritating process for me.
Apparently it is a security feature which I'd love to see disabled.
it's simple, set canvas width and height to screen.width and screen.height. then press F11! think F11 should make full screen in most browsers does in FFox and IE.
Basically there's three things you can do
I've just writen an answer to a very similar answer here where I explain how you can disable UAC since Windows 8.
I use
android:screenOrientation="nosensor"
It is helpful if you do not want to support up side down portrait mode.
select the index then select the ones needed then select sql and click action then click rebuild
Add the sheet name infront of the cell, e.g.:
=COUNTIFS(stock!A:A,"M",stock!C:C,"Yes")
Assumes the sheet name is "stock"
Old thread - but thought i would throw my code in here. I wrote a little function to write a data table to a new excel sheet at a specified path (location). Also you will need to add a reference to microsoft excel 14.0 library.
I pulled from this thread on writing anything to excel - How to write some data to excel file(.xlsx)
i used that to extrapolate how to write a datatable
*note in catch statements i have an errorhandler static class reference (you can ignore those)
using excel = Microsoft.Office.Interop.Excel;
using System.IO;
using System.Data;
using System.Runtime.InteropServices;
//class and namespace wrapper is not shown in this example
private void WriteToExcel(System.Data.DataTable dt, string location)
{
//instantiate excel objects (application, workbook, worksheets)
excel.Application XlObj = new excel.Application();
XlObj.Visible = false;
excel._Workbook WbObj = (excel.Workbook)(XlObj.Workbooks.Add(""));
excel._Worksheet WsObj = (excel.Worksheet)WbObj.ActiveSheet;
//run through datatable and assign cells to values of datatable
try
{
int row = 1; int col = 1;
foreach (DataColumn column in dt.Columns)
{
//adding columns
WsObj.Cells[row, col] = column.ColumnName;
col++;
}
//reset column and row variables
col = 1;
row++;
for (int i = 0; i < dt.Rows.Count; i++)
{
//adding data
foreach (var cell in dt.Rows[i].ItemArray)
{
WsObj.Cells[row, col] = cell;
col++;
}
col = 1;
row++;
}
WbObj.SaveAs(location);
}
catch (COMException x)
{
ErrorHandler.Handle(x);
}
catch (Exception ex)
{
ErrorHandler.Handle(ex);
}
finally
{
WbObj.Close();
}
}
Unicode string literals (string literals prefixed by u
) are no longer used in Python 3. They are still valid but just for compatibility purposes with Python 2.
If you want to create a string literal consisting of only easily typable characters like english letters or numbers, you can simply type them: 'hello world'
. But if you want to include also some more exotic characters, you'll have to use some workaround. One of the workarounds are Escape sequences. This way you can for example represent a new line in your string simply by adding two easily typable characters \n
to your string literal. So when you print the 'hello\nworld'
string, the words will be printed on separate lines. That's very handy!
On the other hand, there are some situations when you want to create a string literal that contains escape sequences but you don't want them to be interpreted by Python. You want them to be raw. Look at these examples:
'New updates are ready in c:\windows\updates\new'
'In this lesson we will learn what the \n escape sequence does.'
In such situations you can just prefix the string literal with the r
character like this: r'hello\nworld'
and no escape sequences will be interpreted by Python. The string will be printed exactly as you created it.
Many people expect the raw string literals to be raw in a sense that "anything placed between the quotes is ignored by Python". That is not true. Python still recognizes all the escape sequences, it just does not interpret them - it leaves them unchanged instead. It means that raw string literals still have to be valid string literals.
From the lexical definition of a string literal:
string ::= "'" stringitem* "'"
stringitem ::= stringchar | escapeseq
stringchar ::= <any source character except "\" or newline or the quote>
escapeseq ::= "\" <any source character>
It is clear that string literals (raw or not) containing a bare quote character: 'hello'world'
or ending with a backslash: 'hello world\'
are not valid.
Does your dump contain features that are not supported in your version of MySQL? You can also try to remove the starting (and ending) MySQL commented SET-statements.
I don't know if your dump comes from a Linux version of MySQL (line endings)?
The old syntax, with just listing the tables, and using the WHERE
clause to specify the join criteria, is being deprecated in most modern databases.
It's not just for show, the old syntax has the possibility of being ambiguous when you use both INNER and OUTER joins in the same query.
Let me give you an example.
Let's suppose you have 3 tables in your system:
Company
Department
Employee
Each table contain numerous rows, linked together. You got multiple companies, and each company can have multiple departments, and each department can have multiple employees.
Ok, so now you want to do the following:
List all the companies, and include all their departments, and all their employees. Note that some companies don't have any departments yet, but make sure you include them as well. Make sure you only retrieve departments that have employees, but always list all companies.
So you do this:
SELECT * -- for simplicity
FROM Company, Department, Employee
WHERE Company.ID *= Department.CompanyID
AND Department.ID = Employee.DepartmentID
Note that the last one there is an inner join, in order to fulfill the criteria that you only want departments with people.
Ok, so what happens now. Well, the problem is, it depends on the database engine, the query optimizer, indexes, and table statistics. Let me explain.
If the query optimizer determines that the way to do this is to first take a company, then find the departments, and then do an inner join with employees, you're not going to get any companies that don't have departments.
The reason for this is that the WHERE
clause determines which rows end up in the final result, not individual parts of the rows.
And in this case, due to the left join, the Department.ID column will be NULL, and thus when it comes to the INNER JOIN to Employee, there's no way to fulfill that constraint for the Employee row, and so it won't appear.
On the other hand, if the query optimizer decides to tackle the department-employee join first, and then do a left join with the companies, you will see them.
So the old syntax is ambiguous. There's no way to specify what you want, without dealing with query hints, and some databases have no way at all.
Enter the new syntax, with this you can choose.
For instance, if you want all companies, as the problem description stated, this is what you would write:
SELECT *
FROM Company
LEFT JOIN (
Department INNER JOIN Employee ON Department.ID = Employee.DepartmentID
) ON Company.ID = Department.CompanyID
Here you specify that you want the department-employee join to be done as one join, and then left join the results of that with the companies.
Additionally, let's say you only want departments that contains the letter X in their name. Again, with old style joins, you risk losing the company as well, if it doesn't have any departments with an X in its name, but with the new syntax, you can do this:
SELECT *
FROM Company
LEFT JOIN (
Department INNER JOIN Employee ON Department.ID = Employee.DepartmentID
) ON Company.ID = Department.CompanyID AND Department.Name LIKE '%X%'
This extra clause is used for the joining, but is not a filter for the entire row. So the row might appear with company information, but might have NULLs in all the department and employee columns for that row, because there is no department with an X in its name for that company. This is hard with the old syntax.
This is why, amongst other vendors, Microsoft has deprecated the old outer join syntax, but not the old inner join syntax, since SQL Server 2005 and upwards. The only way to talk to a database running on Microsoft SQL Server 2005 or 2008, using the old style outer join syntax, is to set that database in 8.0 compatibility mode (aka SQL Server 2000).
Additionally, the old way, by throwing a bunch of tables at the query optimizer, with a bunch of WHERE clauses, was akin to saying "here you are, do the best you can". With the new syntax, the query optimizer has less work to do in order to figure out what parts goes together.
So there you have it.
LEFT and INNER JOIN is the wave of the future.
You mentioned using json2.js to stringify your data, but the POSTed data appears to be URLEncoded JSON You may have already seen it, but this post about the invalid JSON primitive covers why the JSON is being URLEncoded.
I'd advise against passing a raw, manually-serialized JSON string into your method. ASP.NET is going to automatically JSON deserialize the request's POST data, so if you're manually serializing and sending a JSON string to ASP.NET, you'll actually end up having to JSON serialize your JSON serialized string.
I'd suggest something more along these lines:
var markers = [{ "position": "128.3657142857143", "markerPosition": "7" },
{ "position": "235.1944023323615", "markerPosition": "19" },
{ "position": "42.5978231292517", "markerPosition": "-3" }];
$.ajax({
type: "POST",
url: "/webservices/PodcastService.asmx/CreateMarkers",
// The key needs to match your method's input parameter (case-sensitive).
data: JSON.stringify({ Markers: markers }),
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function(data){alert(data);},
error: function(errMsg) {
alert(errMsg);
}
});
The key to avoiding the invalid JSON primitive issue is to pass jQuery a JSON string for the data
parameter, not a JavaScript object, so that jQuery doesn't attempt to URLEncode your data.
On the server-side, match your method's input parameters to the shape of the data you're passing in:
public class Marker
{
public decimal position { get; set; }
public int markerPosition { get; set; }
}
[WebMethod]
public string CreateMarkers(List<Marker> Markers)
{
return "Received " + Markers.Count + " markers.";
}
You can also accept an array, like Marker[] Markers
, if you prefer. The deserializer that ASMX ScriptServices uses (JavaScriptSerializer) is pretty flexible, and will do what it can to convert your input data into the server-side type you specify.
Here's a solution.
The second easiest solution after -r (which is to specify a From: header and separate it from the body by a newline like this
$mail -s "Subject" [email protected]
From: Joel <[email protected]>
Hi!
.
works in only a few mail versions, don't know what version redhat carries).
PS: Most versions of mail suck!
One interesting thing is multiple order by:
according to laravel docs:
DB::table('users')
->orderBy('priority', 'desc')
->orderBy('email', 'asc')
->get();
this means laravel will sort result based on priority
attribute. when it's done, it will order result with same priority
based on email
internally.
Here is my answer in Python 2.7
from datetime import datetime
import tzlocal # pip install tzlocal
print datetime.now(tzlocal.get_localzone()).strftime("%Y-%m-%d %H:%M:%S %z")
from datetime import datetime
import pytz # pip install pytz
print datetime.now(pytz.timezone('Asia/Taipei')).strftime("%Y-%m-%d %H:%M:%S %z")
It will print something like
2017-08-10 20:46:24 +0800
See this article on SQL Server Helper - SQL Server 2008 Date Format
Atom has a built-in line ending selector package
More details here: https://github.com/atom/line-ending-selector
The text field placeholder and the "is really" label is hard to see at night. So i change their color depending one what time of day it is.
Also make sure you connect the new IBOutlet isReallyLabel. To do so open Main.storybaord and control-drag from "Convert" view controller to the "is really" text field and select the isReallyLabel under Outlets.
WARNING: I have not tested to see if the application is open while the time of day swaps.
@IBOutlet var isReallyLabel: UILabel! _x000D_
_x000D_
override func viewWillAppear(animated: Bool) {_x000D_
let calendar = NSCalendar.currentCalendar()_x000D_
let hour = calendar.component(.Hour, fromDate: NSDate())_x000D_
_x000D_
let lightColor = UIColor.init(red: 0.961, green: 0.957, blue: 0945, alpha: 1)_x000D_
let darkColor = UIColor.init(red: 0.184, green: 0.184 , blue: 0.188, alpha: 1)_x000D_
_x000D_
_x000D_
switch hour {_x000D_
case 8...18:_x000D_
isReallyLabel.textColor = UIColor.blackColor()_x000D_
view.backgroundColor = lightColor_x000D_
default:_x000D_
let string = NSAttributedString(string: "Value", attributes: [NSForegroundColorAttributeName: UIColor.whiteColor()])_x000D_
textField.attributedPlaceholder = string_x000D_
isReallyLabel.textColor = UIColor.whiteColor()_x000D_
view.backgroundColor = darkColor_x000D_
}_x000D_
}
_x000D_
This is likely caused by your application's connection pool; not an Oracle DBMS issue. Most connection pools have a validate statement that can execute before giving you the connection. In oracle you would want "Select 1 from dual".
The reason it started occurring after you restarted the server is that the connection pool was probably added without a restart and you are just now experiencing the use of the connection pool for the first time. What is the modification dates on your resource files that deal with database connections?
Validate Query example:
<Resource name="jdbc/EmployeeDB" auth="Container"
validationQuery="Select 1 from dual" type="javax.sql.DataSource" username="dbusername" password="dbpassword"
driverClassName="org.hsql.jdbcDriver" url="jdbc:HypersonicSQL:database"
maxActive="8" maxIdle="4"/>
EDIT: In the case of Grails, there are similar configuration options for the grails pool. Example for Grails 1.2 (see release notes for Grails 1.2)
dataSource {
pooled = true
dbCreate = "update"
url = "jdbc:mysql://localhost/yourDB"
driverClassName = "com.mysql.jdbc.Driver"
username = "yourUser"
password = "yourPassword"
properties {
maxActive = 50
maxIdle = 25
minIdle = 5
initialSize = 5
minEvictableIdleTimeMillis = 60000
timeBetweenEvictionRunsMillis = 60000
maxWait = 10000
}
}
First you have to go config.inc.php file then change the following instruction
$cfg['Servers'][$i]['user'] ='';
$cfg['Servers'][$i]['password'] ='';
or
You can do something like this
var now = moment();
var time = now.hour() + ':' + now.minutes() + ':' + now.seconds();
time = time + ((now.hour()) >= 12 ? ' PM' : ' AM');
Your string has a non ascii
character encoded in it.
Not being able to decode with utf-8
may happen if you've needed to use other encodings in your code. For example:
>>> 'my weird character \x96'.decode('utf-8')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python27\lib\encodings\utf_8.py", line 16, in decode
return codecs.utf_8_decode(input, errors, True)
UnicodeDecodeError: 'utf8' codec can't decode byte 0x96 in position 19: invalid start byte
In this case, the encoding is windows-1252
so you have to do:
>>> 'my weird character \x96'.decode('windows-1252')
u'my weird character \u2013'
Now that you have Unicode
, you can safely encode into utf-8
.
For HSQLDB:
ALTER TABLE tableName ALTER COLUMN columnName SET NULL;
http://jsfiddle.net/mpalpha/71Lhcb5q/
.container {
display: flex;
background: blue;
padding: 10px;
max-height: 200px;
max-width: 200px;
}
img {
object-fit: contain;
max-height: 100%;
max-width: 100%;
}
_x000D_
<div class="container">
<img src="http://placekitten.com/400/500" />
</div>
_x000D_
All of the JAD links listed so far far seem to be broken, so I found this site. Works great (for Linux, at least)! On Ubuntu 11.10 I had to download the static one for whatever reason.
Authentication is done via a simple ldap_bind command that takes the users DN and the password. The user is authenticated when the bind is successfull. Usually you would get the users DN via an ldap_search based on the users uid or email-address.
Getting the users roles is something different as it is an ldap_search and depends on where and how the roles are stored in the ldap. But you might be able to retrieve the roles during the lap_search used to find the users DN.
The truth is that the tool can never give you a 100% certain answer, but coverage tool can give you a pretty good run for the money.
If you count with comprehensive unit test suite, than you can use test coverage tool to see exactly what lines of code were not executed during the test run. You will still need to analyze the code manually: either eliminate what you consider dead code or write test to improve test coverage.
One such tool is NCover, with open source precursor on Sourceforge. Another alternative is PartCover.
Check out this answer on stackoverflow.
The issue is how you're attempting to get the value. Things like...
if ( document.frm_new_user_request.u_isid.value == '' )
won't work. You need to find the element you want to get the value of first. It's not quite like a server side language where you can type in an object's reference name and a period to get or assign values.
document.getElementById('[id goes here]').value;
will work. Note: JavaScript is case-sensitive
I would recommend using:
var variablename = document.getElementById('[id goes here]');
or
var variablename = document.getElementById('[id goes here]').value;
Have a look at the wikipedia entry here. They implement the String.Reverse extension method. This allows you to write code like this:
string s = "olleh";
s.Reverse();
They also use the ToCharArray/Reverse combination that other answers to this question suggest. The source code looks like this:
public static string Reverse(this string input)
{
char[] chars = input.ToCharArray();
Array.Reverse(chars);
return new String(chars);
}
The File
class represents the "idea" of a file, not an actual handle to use for I/O. This is why the File
class has a .exists()
method, to tell you if the file exists or not. (How can you have a File
object that doesn't exist?)
By contrast, constructing a new FileInputStream(new File("/my/file"))
gives you an actual stream to read bytes from.
You might need to revise the data in the column, but anyway you can do one of the following:-
1- check if it is numeric then convert it else put another value like 0
Select COLUMNA AS COLUMNA_s, CASE WHEN Isnumeric(COLUMNA) = 1
THEN CONVERT(DECIMAL(18,2),COLUMNA)
ELSE 0 END AS COLUMNA
2- select only numeric values from the column
SELECT COLUMNA AS COLUMNA_s ,CONVERT(DECIMAL(18,2),COLUMNA) AS COLUMNA
where Isnumeric(COLUMNA) = 1
Maybe you are already using the system proxy setting - in this case unset all git proxies will work:
git config --global --unset http.proxy
git config --global --unset https.proxy
I've tried doing the request you need using an iframe to show the result for latitude, longitude, and zoom needed:
<iframe
width="300"
height="170"
frameborder="0"
scrolling="no"
marginheight="0"
marginwidth="0"
src="https://maps.google.com/maps?q='+YOUR_LAT+','+YOUR_LON+'&hl=es&z=14&output=embed"
>
</iframe>
<br />
<small>
<a
href="https://maps.google.com/maps?q='+data.lat+','+data.lon+'&hl=es;z=14&output=embed"
style="color:#0000FF;text-align:left"
target="_blank"
>
See map bigger
</a>
</small>
You can use the Server object in the System.Web namespace
Server.UrlEncode, Server.UrlDecode, Server.HtmlEncode, and Server.HtmlDecode.
Edit: poster added that this was a windows application and not a web one as one would believe. The items listed above would be available from the HttpUtility class inside System.Web which must be added as a reference to the project.
If it's simply about inserting and resizing a picture, try the code below.
For the specific question you asked, the property TopLeftCell returns the range object related to the cell where the top left corner is parked. To place a new image at a specific place, I recommend creating an image at the "right" place and registering its top and left properties values of the dummy onto double variables.
Insert your Pic assigned to a variable to easily change its name. The Shape Object will have that same name as the Picture Object.
Sub Insert_Pic_From_File(PicPath as string, wsDestination as worksheet)
Dim Pic As Picture, Shp as Shape
Set Pic = wsDestination.Pictures.Insert(FilePath)
Pic.Name = "myPicture"
'Strongly recommend using a FileSystemObject.FileExists method to check if the path is good before executing the previous command
Set Shp = wsDestination.Shapes("myPicture")
With Shp
.Height = 100
.Width = 75
.LockAspectRatio = msoTrue 'Put this later so that changing height doesn't change width and vice-versa)
.Placement = 1
.Top = 100
.Left = 100
End with
End Sub
Good luck!
From the Javadocs for setDisplayOrientation(int)
(Requires API level 9):
public static void setCameraDisplayOrientation(Activity activity,
int cameraId, android.hardware.Camera camera) {
android.hardware.Camera.CameraInfo info =
new android.hardware.Camera.CameraInfo();
android.hardware.Camera.getCameraInfo(cameraId, info);
int rotation = activity.getWindowManager().getDefaultDisplay()
.getRotation();
int degrees = 0;
switch (rotation) {
case Surface.ROTATION_0: degrees = 0; break;
case Surface.ROTATION_90: degrees = 90; break;
case Surface.ROTATION_180: degrees = 180; break;
case Surface.ROTATION_270: degrees = 270; break;
}
int result;
if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
result = (info.orientation + degrees) % 360;
result = (360 - result) % 360; // compensate the mirror
} else { // back-facing
result = (info.orientation - degrees + 360) % 360;
}
camera.setDisplayOrientation(result);
}
Move your row before <div class="container marketing">
and wrap it with a new container, because current container width is 1170px (not 100%):
<div class='hero'>
<div class="row">
...
</div>
</div>
CSS:
.hero {
background-color: #2ba6cb;
padding: 0 90px;
}
Usually clicks go first than location changes, so after a click is a good idea to setTimeOut to get updated window.location.hash
$(".nav").click(function(){
setTimeout(function(){
updatedHash = location.hash
},100);
});
or you can listen location with:
window.onhashchange = function(evt){
updatedHash = "#" + evt.newURL.split("#")[1]
};
I wrote a jQuery plugin that does something like what you want to do.
It's a simple anchor router.
The easy way to do it, with GNU sed
:
sed --in-place '/some string here/d' yourfile
If your end goal is to add elements to your page, just manipulate the DOM directly. Don't use string concatenation to try to create HTML - what a pain! See how much more straightforward it is to just create your element, instead of the HTML that represents your element:
var x = document.createElement("option");
x.value = col;
x.text = "Very roomy";
x.selected = col == "screwdriver";
Then, later when you put the element in your page, instead of setting the innerHTML
of the parent element, call appendChild()
:
mySelectElement.appendChild(x);
Getting the second largest number from an array is pretty easy in python, I have done with simple steps and put various ways of test cases and it gave the right answer every time. PS. I know it's for c but I just gave a simple solution to the question if done in python
n = int(input()) #taking number of elements in array
arr = map(int, input().split()) #taking differet elements
l=[]
s=set()
for i in arr: #putting all the elemnents in set to remove any duplicate number
s.add(i)
for j in s: #putting all element from the set in the list to sort and get the second largest number
l.append(j)
l.sort()
c=len(l)
print(l[c-2]) #printing second largest number
If you use the library underscore you can write like this
var unionArr = _.union([34,35,45,48,49], [48,55]);_x000D_
console.log(unionArr);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js"></script>
_x000D_
Use the DATEDIFF to return value in milliseconds, seconds, minutes, hours, ...
DATEDIFF(interval, date1, date2)
interval REQUIRED - The time/date part to return. Can be one of the following values:
year, yyyy, yy = Year
quarter, qq, q = Quarter
month, mm, m = month
dayofyear = Day of the year
day, dy, y = Day
week, ww, wk = Week
weekday, dw, w = Weekday
hour, hh = hour
minute, mi, n = Minute
second, ss, s = Second
millisecond, ms = Millisecond
date1, date2 REQUIRED - The two dates to calculate the difference between
Since go
is flexible an you can create your own python
style split ...
package main
import (
"fmt"
"strings"
"errors"
)
type PyString string
func main() {
var py PyString
py = "127.0.0.1:5432"
ip, port , err := py.Split(":") // Python Style
fmt.Println(ip, port, err)
}
func (py PyString) Split(str string) ( string, string , error ) {
s := strings.Split(string(py), str)
if len(s) < 2 {
return "" , "", errors.New("Minimum match not found")
}
return s[0] , s[1] , nil
}
If you still see permission denied
after verifying the permissions of the parent folders, it may be SELinux restricting access.
To check if SELinux is running:
# getenforce
To disable SELinux until next reboot:
# setenforce Permissive
Restart Nginx and see if the problem persists. To allow nginx to serve your www directory (make sure you turn SELinux back on before testing this. i.e, setenforce Enforcing
)
# chcon -Rt httpd_sys_content_t /path/to/www
See my answer here for more details
Something like this:
var mylist = $('#myUL');
var listitems = mylist.children('li').get();
listitems.sort(function(a, b) {
return $(a).text().toUpperCase().localeCompare($(b).text().toUpperCase());
})
$.each(listitems, function(idx, itm) { mylist.append(itm); });
From this page: http://www.onemoretake.com/2009/02/25/sorting-elements-with-jquery/
Above code will sort your unordered list with id 'myUL'.
OR you can use a plugin like TinySort. https://github.com/Sjeiti/TinySort
In order to Join multicast group Python uses native OS socket interface. Due to portability and stability of Python environment many of socket options are directly forwarded to native socket setsockopt call. Multicast mode of operation such as joining and dropping group membership can be accomplished by setsockopt
only.
Basic program for receiving multicast IP packet can look like:
from socket import *
multicast_port = 55555
multicast_group = "224.1.1.1"
interface_ip = "10.11.1.43"
s = socket(AF_INET, SOCK_DGRAM )
s.bind(("", multicast_port ))
mreq = inet_aton(multicast_group) + inet_aton(interface_ip)
s.setsockopt(IPPROTO_IP, IP_ADD_MEMBERSHIP, str(mreq))
while 1:
print s.recv(1500)
Firstly it creates socket, binds it and triggers triggers multicast group joining by issuing setsockopt
. At very end it receives packets forever.
Sending multicast IP frames is straight forward. If you have single NIC in your system sending such packets does not differ from usual UDP frames sending. All you need to take care of is just set correct destination IP address in sendto()
method.
I noticed that lot of examples around Internet works by accident in fact. Even on official python documentation. Issue for all of them are using struct.pack incorrectly. Please be advised that typical example uses 4sl
as format and it is not aligned with actual OS socket interface structure.
I will try to describe what happens underneath the hood when exercising setsockopt call for python socket object.
Python forwards setsockopt method call to native C socket interface. Linux socket documentation (see man 7 ip
) introduces two forms of ip_mreqn
structure for IP_ADD_MEMBERSHIP option. Shortest is form is 8 bytes long and longer is 12 bytes long. Above example generates 8 byte setsockopt
call where first four bytes define multicast_group
and second four bytes define interface_ip
.
From @Johan La Rooy's solution, sorting the images using sorted(glob.glob('*.png'))
does not work for me, the output list is still not ordered by their names.
However, the sorted(glob.glob('*.png'), key=os.path.getmtime)
works perfectly.
I am a bit confused how can sorting by their names does not work here.
Thank @Martin Thoma for posting this great question and @Johan La Rooy for the helpful solutions.
Just scroll down with your mouse
In Linux Ctrl+L will do but if your scroll up you will see the old commands
So I would suggest scrolling down in windows using mouse
You can get to the parent node and then query all the nodes with the class that is being searched. then we get the size
var parent = document.getElementById("parentId");_x000D_
var nodesSameClass = parent.getElementsByClassName("test");_x000D_
console.log(nodesSameClass.length);
_x000D_
<div id="parentId">_x000D_
<p class="prueba">hello word1</p>_x000D_
<p class="test">hello word2</p>_x000D_
<p class="test">hello word3</p>_x000D_
<p class="test">hello word4</p>_x000D_
</div>
_x000D_
will I get the same results?
Not really. I don't know of a workaround for PHP 5.2, though.
What is the difference between
new self
andnew static
?
self
refers to the same class in which the new
keyword is actually written.
static
, in PHP 5.3's late static bindings, refers to whatever class in the hierarchy you called the method on.
In the following example, B
inherits both methods from A
. The self
invocation is bound to A
because it's defined in A
's implementation of the first method, whereas static
is bound to the called class (also see get_called_class()
).
class A {
public static function get_self() {
return new self();
}
public static function get_static() {
return new static();
}
}
class B extends A {}
echo get_class(B::get_self()); // A
echo get_class(B::get_static()); // B
echo get_class(A::get_self()); // A
echo get_class(A::get_static()); // A
list.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
// TODO Auto-generated method stub
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
i was search for the answer in swift 3 and this question was showed as first result in search and i get inspired the answer from it so here is the swift 3 code
let array: [String] = nsMutableArrayObject.copy() as! [String]
Here is the solution that worked for me:
Hopefully it should run without problems.
In my little application I have at least a million files weighing in at about 200GB at last count. All the files are sitting in an XFS file system mounted on a linux server over iscsi. The paths are stored in the database. use some kind of intelligent naming convention for your file paths and file names.
IMHO, use the file system for what it was meant to do - store files. Databases generally do not offer you any advantage over a standard file system in storing binary data.
Check for the value of the parameter:
// .NET < 4.0
if (string.IsNullOrEmpty(Request.QueryString["aspxerrorpath"]))
{
// not there!
}
// .NET >= 4.0
if (string.IsNullOrWhiteSpace(Request.QueryString["aspxerrorpath"]))
{
// not there!
}
If it does not exist, the value will be null
, if it does exist, but has no value set it will be an empty string.
I believe the above will suit your needs better than just a test for null
, as an empty string is just as bad for your specific situation.
Alternatively you can also open the intent from your app in the other app with:
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
where uri
is the deeplink to the other app
Here is a great article explaining ByteBuffer benefits. Following are the key points in the article:
Following are benefits specifically for direct ByteBuffer/MappedByteBuffer. Note that direct buffers are created outside of heap:
Unaffected by gc cycles: Direct buffers won't be moved during garbage collection cycles as they reside outside of heap. TerraCota's BigMemory caching technology seems to rely heavily on this advantage. If they were on heap, it would slow down gc pause times.
Performance boost: In stream IO, read calls would entail system calls, which require a context-switch between user to kernel mode and vice versa, which would be costly especially if file is being accessed constantly. However, with memory-mapping this context-switching is reduced as data is more likely to be found in memory (MappedByteBuffer). If data is available in memory, it is accessed directly without invoking OS, i.e., no context-switching.
Note that MappedByteBuffers are very useful especially if the files are big and few groups of blocks are accessed more frequently.
What about position: relative
for the outer div? In the example that hides the inner one. It also won't move it in its layout since you don't specify a top or left.
i'd just do a simple check to see if d[a] exists and if not initialize it...
var a = "1",
b = "hello",
c = { "100" : "some important data" },
d = {};
if (d[a] === undefined) {
d[a] = {}
};
d[a]["greeting"] = b;
d[a]["data"] = c;
console.debug (d);
To Enter into crontab :
crontab -e
write this into the file:
0 */2 * * * python/php/java yourfilepath
Example :0 */2 * * * python ec2-user/home/demo.py
and make sure you have keep one blank line after the last cron job in your crontab file
Here is an example of how you could do this. Note that I was inspired by a comment in the ng-repeat docs: http://jsfiddle.net/digitalzebra/wnWY6/
Note the ng-repeat directive:
<div ng-app>
<div ng-controller="TestCtrl">
<div ng-repeat="a in range(5) track by $index">{{$index + 1}}</div>
</div>
</div>
Here is the controller:
function TestCtrl($scope) {
$scope.range = function(n) {
return new Array(n);
};
};
Thanks to @Martin_Bean and @Mihail Velikov answers. I just took their answer snippet and added some modifications to check,
If only Hours only available and minutes value empty, then it will display only hours.
Same if only Minutes only available and hours value empty, then it will display only minutes.
If minutes = 60, then it will display as 1 hour. Same if minute = 1, the output will be 1 minute.
Changes and edits are welcomed. Thanks. Here is the code.
function convertToHoursMins($time) {
$hours = floor($time / 60);
$minutes = ($time % 60);
if($minutes == 0){
if($hours == 1){
$output_format = '%02d hour ';
}else{
$output_format = '%02d hours ';
}
$hoursToMinutes = sprintf($output_format, $hours);
}else if($hours == 0){
if ($minutes < 10) {
$minutes = '0' . $minutes;
}
if($minutes == 1){
$output_format = ' %02d minute ';
}else{
$output_format = ' %02d minutes ';
}
$hoursToMinutes = sprintf($output_format, $minutes);
}else {
if($hours == 1){
$output_format = '%02d hour %02d minutes';
}else{
$output_format = '%02d hours %02d minutes';
}
$hoursToMinutes = sprintf($output_format, $hours, $minutes);
}
return $hoursToMinutes;
}`
You can use setState inside componentDidUpdate
Times have changed and now the cleanest and most readable way to do this is:
Array.from(document.querySelectorAll('widget hover')).forEach((el) => el.classList.remove('hover'));
If you can't support arrow functions then just convert it like this:
Array.from(document.querySelectorAll('widget hover')).forEach(function(el) {
el.classList.remove('hover');
});
Additionally if you need to support extremely old browsers then use a polyfil for the forEach
and Array.from
and move on with your life.
my use case was slight different. I had to construct a query where more then 20 fields were dynamic. I followed this approach of using format method
query = "insert into {0}({1},{2},{3}) values({4}, {5}, {6})"
query.format('users','name','age','dna','suzan',1010,'nda')
this was comparatively simpler for me instead of using + or other ways
String text = "text";
text += new String(" ");
The concept is simple:
M =[(1, 1), (5, 6), (0, 0)]
1) print([any(x) for x in M])
[True, True, False] #only the last tuple does not have any true element
2) print([all(x) for x in M])
[True, True, False] #all elements of the last tuple are not true
3) print([not all(x) for x in M])
[False, False, True] #NOT operator applied to 2)
4) print([any(x) and not all(x) for x in M])
[False, False, False] #AND operator applied to 1) and 3)
# if we had M =[(1, 1), (5, 6), (1, 0)], we could get [False, False, True] in 4)
# because the last tuple satisfies both conditions: any of its elements is TRUE
#and not all elements are TRUE
For a typical example of employees owning one or more phones, see this wikibook section.
For your specific example, if you want to do a one-to-one
relationship, you should change the next code in ReleaseDateType model:
@Column(nullable = true)
private Integer media_Id;
for:
@OneToOne(fetch = FetchType.LAZY)
@JoinColumn(name="CACHE_MEDIA_ID", nullable=true)
private CacheMedia cacheMedia ;
and in CacheMedia model you need to add:
@OneToOne(cascade=ALL, mappedBy="ReleaseDateType")
private ReleaseDateType releaseDateType;
then in your repository you should replace:
@Query("Select * from A a left join B b on a.id=b.id")
public List<ReleaseDateType> FindAllWithDescriptionQuery();
by:
//In this case a query annotation is not need since spring constructs the query from the method name
public List<ReleaseDateType> findByCacheMedia_Id(Integer id);
or by:
@Query("FROM ReleaseDateType AS rdt WHERE cm.rdt.cacheMedia.id = ?1") //This is using a named query method
public List<ReleaseDateType> FindAllWithDescriptionQuery(Integer id);
Or if you prefer to do a @OneToMany
and @ManyToOne
relation, you should change the next code in ReleaseDateType model:
@Column(nullable = true)
private Integer media_Id;
for:
@OneToMany(cascade=ALL, mappedBy="ReleaseDateType")
private List<CacheMedia> cacheMedias ;
and in CacheMedia model you need to add:
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name="RELEASE_DATE_TYPE_ID", nullable=true)
private ReleaseDateType releaseDateType;
then in your repository you should replace:
@Query("Select * from A a left join B b on a.id=b.id")
public List<ReleaseDateType> FindAllWithDescriptionQuery();
by:
//In this case a query annotation is not need since spring constructs the query from the method name
public List<ReleaseDateType> findByCacheMedias_Id(Integer id);
or by:
@Query("FROM ReleaseDateType AS rdt LEFT JOIN rdt.cacheMedias AS cm WHERE cm.id = ?1") //This is using a named query method
public List<ReleaseDateType> FindAllWithDescriptionQuery(Integer id);
You can use css filters, below and example for web-kit. please look at this example: http://jsfiddle.net/m9sjdbx6/4/
img { -webkit-filter: brightness(0.2);}
I just upgrade my old XAMPP portable with PHP 5.3.X(Include Mercury & FileZilla & Tomcat) to XAMPP portable with PHP 5.6.X ( Include previous versions ) ...
My way:
max_upload_size
and etc on php.ini and also in /apache/conf/extra/httpd-xampp.conf
D
to drive C
NOTE
On Export database tab on phpmyadmin, select UTF-8 Character and check Disable foreign key checks
checkbox
and on import tab uncheck Enable foreign key checks
.
I like to use find which is first assigned to variable and IFS switched to new line as follow:
FilesFound=$(find . -name "*.txt")
IFSbkp="$IFS"
IFS=$'\n'
counter=1;
for file in $FilesFound; do
echo "${counter}: ${file}"
let counter++;
done
IFS="$IFSbkp"
As commented by @Konrad Rudolph this will not work with "new lines" in file name. I still think it is handy as it covers most of the cases when you need to loop over command output.
In general you just have to define a slightly transparent color when creating the shape.
You can achieve that by setting the colors alpha channel.
#FF000000
will get you a solid black whereas #00000000
will get you a 100% transparent black (well it isn't black anymore obviously).
The color scheme is like this #AARRGGBB
there A stands for alpha channel, R stands for red, G for green and B for blue.
The same thing applies if you set the color in Java. There it will only look like 0xFF000000
.
UPDATE
In your case you'd have to add a solid
node. Like below.
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/shape_my">
<stroke android:width="4dp" android:color="#636161" />
<padding android:left="20dp"
android:top="20dp"
android:right="20dp"
android:bottom="20dp" />
<corners android:radius="24dp" />
<solid android:color="#88000000" />
</shape>
The color here is a half transparent black.
Try this Javascript (jquery) code. Its an ajax request to an external URL. Use the callback function to fire any code:
<script type="text/javascript">
$(function() {
$('form').submit(function(){
$.post('http://example.com/upload', function() {
window.location = 'http://google.com';
});
return false;
});
});
</script>
Two ways to work around this .
Recommended way : In your eclipse.ini
file make sure you are
pointing -vm to your jdk installation. More on this here. Make sure to add -vm
before the -vmargs
section.
Pass in the vm
flag from command line. http://wiki.eclipse.org/FAQ_How_do_I_run_Eclipse%3F#Find_the_JVM
Note : Eclipse DOES NOT consult the JAVA_HOME environment variable.
Like this
SELECT DISTINCT Table1.Column1
FROM Table1
WHERE NOT EXISTS( SELECT * FROM Table2
WHERE Table1.Column1 = Table2.Column1 )
You want NOT EXISTS, not "Not Equal"
By the way, you rarely want to write a FROM clause like this:
FROM Table1, Table2
as this means "FROM all combinations of every row in Table1 with every row in Table2..." Usually that's a lot more result rows than you ever want to see. And in the rare case that you really do want to do that, the more accepted syntax is:
FROM Table1 CROSS JOIN Table2
# here database details
mysql_connect('hostname', 'username', 'password');
mysql_select_db('database-name');
$sql = "SELECT username FROM userregistraton";
$result = mysql_query($sql);
echo "<select name='username'>";
while ($row = mysql_fetch_array($result)) {
echo "<option value='" . $row['username'] ."'>" . $row['username'] ."</option>";
}
echo "</select>";
# here username is the column of my table(userregistration)
# it works perfectly
You can use a custom format string:
DateTime d = DateTime.Now;
string dateString = d.ToString("yyyyMMddHHmmss");
Substitute "hh" for "HH" if you do not want 24-hour clock time.
Alternatively, with the Joda-Time DateTime
class.
//convert date to datetime
DateTime datetime = new DateTime(date);
int month = Integer.parseInt(datetime.toString("MM"))
…or…
int month = dateTime.getMonthOfYear();
A good way to achieve this is to have a Maven mirror server such as Sonatype Nexus. It is free and very easy to setup (Java web app). With Nexus one can have private (team, corporate etc) repository with a capability of deploying third party and internal apps into it, while also registering other Maven repositories as part of the same server. This way the local Maven settings would reference only the one private Nexus server and all the dependencies will be resolved using it.
Just create a new array in your dictionary
Dictionary<string, List<string>> myDic = new Dictionary<string, List<string>>();
myDic.Add(newKey, new List<string>(existingList));
If you use OmniFaces you can also use it's EL functions like of:formatDate()
to format Date
objects. You would use it like this:
<h:outputText value="#{of:formatDate(someBean.dateField, 'dd.MM.yyyy HH:mm')}" />
This way you can not only use it for output but also to pass it on to other JSF components.
If you are submitting a form using php be sure to use:
action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>"
The query below returns a list of information about each field, including the MySQL field type. Here is an example:
SHOW FIELDS FROM tablename
/* returns "Field", "Type", "Null", "Key", "Default", "Extras" */
See this manual page.
If you get the .idb
recreated again after you delete it, then read this answer.
This how it worked with me. I had the .idb
file without it's corresponding .frm
and whenever I delete the .idb
file, the database recreate it again. and I found the solution in one line in MySQL documentation (Tablespace Does Not Exist part)
1- Create a matching .frm file in some other database directory and copy it to the database directory where the orphan table is located.
2- Issue DROP TABLE for the original table. That should successfully drop the table and InnoDB should print a warning to the error log that the .ibd file was missing.
I copied another table .frm
file and name it like my missing table, then make a normal drop table query and voila, it worked and the table is dropped normally!
my system is XAMPP on windows MariaDB v 10.1.8
MySQL has a short description of their more or less strict rules:
https://dev.mysql.com/doc/internals/en/coding-style.html
Most common codingstyle for MySQL by Simon Holywell:
See also this question: Are there any published coding style guidelines for SQL?
if you are using django use forloop.counter
instead of loop.counter
<ul>
{% for user in userlist %}
<li>
{{ user }} {{forloop.counter}}
</li>
{% if forloop.counter == 1 %}
This is the First user
{% endif %}
{% endfor %}
</ul>
git reset filename
git rm --cached filename
then add your file which you want to ignore it,
then commit and push to your repository
Go to Solution properties ? Common Properties ? Startup Project and select Multiple startup projects.
It really depends :) One of the handy linux core utils (info coreutils
) is xargs
. If you are using awk
you probably have a more involved use-case in mind - your question is not very detailled.
printf "1 2\n3 4" | awk '{ print $2 }' | xargs touch
Will execute touch 2 4
. Here touch
could be replaced by your program. More info at info xargs
and man xargs
(really, read these).
I believe you would like to replace touch
with your program.
Breakdown of beforementioned script:
printf "1 2\n3 4"
# Output:
1 2
3 4
# The pipe (|) makes the output of the left command the input of
# the right command (simplified)
printf "1 2\n3 4" | awk '{ print $2 }'
# Output (of the awk command):
2
4
# xargs will execute a command with arguments. The arguments
# are made up taking the input to xargs (in this case the output
# of the awk command, which is "2 4".
printf "1 2\n3 4" | awk '{ print $2 }' | xargs touch
# No output, but executes: `touch 2 4` which will create (or update
# timestamp if the files already exist) files with the name "2" and "4"
Update In the original answer, I used echo
instead of printf
. However, printf
is the better and more portable alternative as was pointed out by a comment (where great links with discussions can be found).
This "answer" is more of an addendum to VonC's answer; just noting that the syntax can be simplified via a typedef, and aggregate initialization can be used:
typedef int FUNC(int, int);
FUNC sum, subtract, mul, div;
FUNC *p[4] = { sum, subtract, mul, div };
int main(void)
{
int result;
int i = 2, j = 3, op = 2; // 2: mul
result = p[op](i, j); // = 6
}
// maybe even in another file
int sum(int a, int b) { return a+b; }
int subtract(int a, int b) { return a-b; }
int mul(int a, int b) { return a*b; }
int div(int a, int b) { return a/b; }
Postman is the best application to test your APIs !
You can import or export your routes and let him remember all your body requests ! :)
EDIT : This comment is 5 yea's old and deprecated :D
Here's the new Postman App : https://www.postman.com/
The answer depends on what do you need a loop for.
of course you can have a loop similar to Java:
for i in xrange(len(my_list)):
but I never actually used loops like this,
because usually you want to iterate
for obj in my_list
or if you need an index as well
for index, obj in enumerate(my_list)
or you want to produce another collection from a list
map(some_func, my_list)
[somefunc[x] for x in my_list]
also there are itertools
module that covers most of iteration related cases
also please take a look at the builtins like any
, max
, min
, all
, enumerate
I would say - do not try to write Java-like code in python. There is always a pythonic way to do it.
Another alternative:
def move(arr, n):
return [arr[(idx-n) % len(arr)] for idx,_ in enumerate(arr)]
I have found in following way :
Go to https://itunesconnect.apple.com/ , sign in
Click "Resources and Help"
The information provided in this answer can lead to insecure programming practices.
The information provided here depends highly on MySQL configuration, including (but not limited to) the program version, the database client and character-encoding used.
See http://dev.mysql.com/doc/refman/5.0/en/string-literals.html
MySQL recognizes the following escape sequences. \0 An ASCII NUL (0x00) character. \' A single quote (“'”) character. \" A double quote (“"”) character. \b A backspace character. \n A newline (linefeed) character. \r A carriage return character. \t A tab character. \Z ASCII 26 (Control-Z). See note following the table. \\ A backslash (“\”) character. \% A “%” character. See note following the table. \_ A “_” character. See note following the table.
So you need
select * from tablename where fields like "%string \"hi\" %";
Although as Bill Karwin notes below, using double quotes for string delimiters isn't standard SQL, so it's good practice to use single quotes. This simplifies things:
select * from tablename where fields like '%string "hi" %';
Multiple params in a stored procedure that has multiple params in vb:
Dim result= db.Database.ExecuteSqlCommand("StoredProcedureName @a,@b,@c,@d,@e", a, b, c, d, e)
Just install the certificate packages with the following commands:
pacman -S mingw-w64-i686-ca-certificates ca-certificates
pacman -S mingw-w64-x86_64-ca-certificates ca-certificates
I know this isn't in the Django tutorial, and shame on them, but it's better to set up relative paths for your path variables. You can set it up like so:
import os.path
PROJECT_PATH = os.path.realpath(os.path.dirname(__file__))
...
MEDIA_ROOT = os.path.join(PROJECT_PATH, 'media/')
TEMPLATE_DIRS = [
os.path.join(PROJECT_PATH, 'templates/'),
]
This way you can move your Django project and your path roots will update automatically. This is useful when you're setting up your production server.
Second, there's something suspect to your TEMPLATE_DIRS path. It should point to the root of your template directory. Also, it should also end in a trailing /
.
I'm just going to guess here that the .../admin/
directory is not your template root. If you still want to write absolute paths you should take out the reference to the admin template directory.
TEMPLATE_DIRS = [
'C:/django-project/myapp/mytemplates/',
]
With that being said, the template loaders by default should be set up to recursively traverse into your app directories to locate template files.
TEMPLATE_LOADERS = [
'django.template.loaders.filesystem.load_template_source',
'django.template.loaders.app_directories.load_template_source',
# 'django.template.loaders.eggs.load_template_source',
]
You shouldn't need to copy over the admin templates unless if you specifically want to overwrite something.
You will have to run a syncdb if you haven't run it yet. You'll also need to statically server your media files if you're hosting django through runserver.
I dump my output to a text file. I then open it in notepad ++ then click the show all characters button. Not very elegant but it works.
Using the accepted answer to create an alias
oops = "!f(){ \
git add -A; \
if [ \"$1\" == '' ]; then \
git commit --amend --no-edit; \
else \
git commit --amend \"$@\"; \
fi;\
}; f"
then you can do
git oops
and it will add everything, and amend using the same message
or
git oops -m "new message"
to amend replacing the message
This answer shows how I ended up using this and the additional pitfalls I hit.
I made a master SCSS file. This file must have an underscore at the beginning for it to be imported:
// assets/_master.scss
$accent: #6D87A7;
$error: #811702;
Then, in the header of all of my other .SCSS files, I import the master:
// When importing the master, you leave out the underscore, and it
// will look for a file with the underscore. This prevents the SCSS
// compiler from generating a CSS file from it.
@import "assets/master";
// Then do the rest of my CSS afterwards:
.text { color: $accent; }
Do not include anything but variables, function declarations and other SASS features in your _master.scss
file. If you include actual CSS, it will duplicate this CSS across every file you import the master into.
Using the useEffect hook, we can easily implement delay feature while typing in input field:
import React, { useState, useEffect } from 'react'
function Search() {
const [searchTerm, setSearchTerm] = useState('')
// Without delay
// useEffect(() => {
// console.log(searchTerm)
// }, [searchTerm])
// With delay
useEffect(() => {
const delayDebounceFn = setTimeout(() => {
console.log(searchTerm)
// Send Axios request here
}, 3000)
// Cleanup fn
return () => clearTimeout(delayDebounceFn)
}, [searchTerm])
return (
<input
autoFocus
type='text'
autoComplete='off'
className='live-search-field'
placeholder='Search here...'
onChange={(e) => setSearchTerm(e.target.value)}
/>
)
}
export default Search
It isn't that hard to deal with the character array itself without converting the array to a string. Especially in the case where the length of the character array is know or can be easily found. With the character array, the length must be determined in the same scope as the array definition, e.g.:
size_t len sizeof myarray/sizeof *myarray;
For strings you, of course, have strlen
available.
With the length known, regardless of whether it is a character array or a string, you can convert the character values to a number with a short function similar to the following:
/* convert character array to integer */
int char2int (char *array, size_t n)
{
int number = 0;
int mult = 1;
n = (int)n < 0 ? -n : n; /* quick absolute value check */
/* for each character in array */
while (n--)
{
/* if not digit or '-', check if number > 0, break or continue */
if ((array[n] < '0' || array[n] > '9') && array[n] != '-') {
if (number)
break;
else
continue;
}
if (array[n] == '-') { /* if '-' if number, negate, break */
if (number) {
number = -number;
break;
}
}
else { /* convert digit to numeric value */
number += (array[n] - '0') * mult;
mult *= 10;
}
}
return number;
}
Above is simply the standard char to int conversion approach with a few additional conditionals included. To handle stray characters, in addition to the digits
and '-'
, the only trick is making smart choices about when to start collecting digits and when to stop.
If you start collecting digits
for conversion when you encounter the first digit
, then the conversion ends when you encounter the first '-'
or non-digit
. This makes the conversion much more convenient when interested in indexes such as (e.g. file_0127.txt
).
A short example of its use:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int char2int (char *array, size_t n);
int main (void) {
char myarray[4] = {'-','1','2','3'};
char *string = "some-goofy-string-with-123-inside";
char *fname = "file-0123.txt";
size_t mlen = sizeof myarray/sizeof *myarray;
size_t slen = strlen (string);
size_t flen = strlen (fname);
printf ("\n myarray[4] = {'-','1','2','3'};\n\n");
printf (" char2int (myarray, mlen): %d\n\n", char2int (myarray, mlen));
printf (" string = \"some-goofy-string-with-123-inside\";\n\n");
printf (" char2int (string, slen) : %d\n\n", char2int (string, slen));
printf (" fname = \"file-0123.txt\";\n\n");
printf (" char2int (fname, flen) : %d\n\n", char2int (fname, flen));
return 0;
}
Note: when faced with '-'
delimited file indexes (or the like), it is up to you to negate the result. (e.g. file-0123.txt
compared to file_0123.txt
where the first would return -123
while the second 123
).
Example Output
$ ./bin/atoic_array
myarray[4] = {'-','1','2','3'};
char2int (myarray, mlen): -123
string = "some-goofy-string-with-123-inside";
char2int (string, slen) : -123
fname = "file-0123.txt";
char2int (fname, flen) : -123
Note: there are always corner cases, etc. that can cause problems. This isn't intended to be 100% bulletproof in all character sets, etc., but instead work an overwhelming majority of the time and provide additional conversion flexibility without the initial parsing or conversion to string required by atoi
or strtol
, etc.
html
<div class="dropdown">
<button class="btn btn-primary dropdown-toggle" type="button" data-toggle="dropdown">
Dropdown Example <span class="caret"></span>
</button>
<ul class="dropdown-menu">
<li><a href="#">HTML</a></li>
<li><a href="#">CSS</a></li>
<li><a href="#">JavaScript</a></li>
</ul>
</div>
jquery
$(document).ready( function() {
/* $(selector).hover( inFunction, outFunction ) */
$('.dropdown').hover(
function() {
$(this).find('ul').css({
"display": "block",
"margin-top": 0
});
},
function() {
$(this).find('ul').css({
"display": "none",
"margin-top": 0
});
}
);
});
if you just scrollheight it will make a problem when user will want to see his previous message. so you need to make something that when new message come only then the code. use jquery latest version. 1.here I checked the height before message loaded. 2. again check the new height. 3. if the height is different only that time it will scroll otherwise it will not scroll. 4. not in the if condition you can put any ringtone or any other feature that you need. that will play when new message will come. thanks
var oldscrollHeight = $("#messages").prop("scrollHeight");
$.get('msg_show.php', function(data) {
div.html(data);
var newscrollHeight = $("#messages").prop("scrollHeight"); //Scroll height after the request
if (newscrollHeight > oldscrollHeight) {
$("#messages").animate({
scrollTop: newscrollHeight
}, 'normal'); //Autoscroll to bottom of div
}
I found problems with the two common ways of doing this:
Doing this with custom headers (<customHeaders>
) in web.config allows different deployments of the same application to have this set differently. I see this as one more thing that can go wrong, so I think it's better if the application specifies this in code. Also, IIS6 doesn't support this.
Including an HTML <meta>
tag in a Web Forms Master Page or MVC Layout Page seems better than the above. However, if some pages don't inherit from these then the tag needs to be duplicated, so there's a potential maintainability and reliability problem.
Network traffic could be reduced by only sending the X-UA-Compatible
header to Internet Explorer clients.
If your application is structured in a way that causes all pages to ultimately inherit from a single root page, include the <meta>
tag as shown in the other answers.
Otherwise,
I think the best way to do this is to automatically add the HTTP header to all HTML responses. One way to do this is using an IHttpModule
:
public class IeCompatibilityModeDisabler : IHttpModule
{
public void Init(HttpApplication context)
{
context.PreSendRequestHeaders += (sender, e) => DisableCompatibilityModeIfApplicable();
}
private void DisableCompatibilityModeIfApplicable()
{
if (IsIe && IsPage)
DisableCompatibilityMode();
}
private void DisableCompatibilityMode()
{
var response = Context.Response;
response.AddHeader("X-UA-Compatible", "IE=edge");
}
private bool IsIe { get { return Context.Request.Browser.IsBrowser("IE"); } }
private bool IsPage { get { return Context.Handler is Page; } }
private HttpContext Context { get { return HttpContext.Current; } }
public void Dispose() { }
}
IE=edge
indicates that IE should use its latest rendering engine (rather than compatibility mode) to render the page.
It seems that HTTP modules are often registered in the web.config file, but this brings us back to the first problem. However, you can register them programmatically in Global.asax like this:
public class Global : HttpApplication
{
private static IeCompatibilityModeDisabler module;
void Application_Start(object sender, EventArgs e)
{
module = new IeCompatibilityModeDisabler();
}
public override void Init()
{
base.Init();
module.Init(this);
}
}
Note that it is important that the module is static
and not instantiated in Init
so that there is only one instance per application. Of course, in a real-world application an IoC container should probably be managing this.
PreSendRequestHeaders
event in the above code doesn't seem to fire in IIS6. I haven't figured out how to resolve this bug yet.I know that's an old question and have a lot of answers, However I find that using a switch statement as in the accepted answer is somewhat cumbersome, so here are my 2 cents:
My personal favorite method is to use a dictionary, where the key is the source enum and the value is the target enum - so in the case presented on the question my code would look like this:
var genderTranslator = new Dictionary<TheirGender, MyGender>();
genderTranslator.Add(TheirGender.Male, MyGender.Male);
genderTranslator.Add(TheirGender.Female, MyGender.Female);
genderTranslator.Add(TheirGender.Unknown, MyGender.Unknown);
// translate their to mine
var myValue = genderTranslator[TheirValue];
// translate mine to their
var TheirValue = genderTranslator .FirstOrDefault(x => x.Value == myValue).Key;;
Of course, this can be wrapped in a static class and be used as an extension methods:
public static class EnumTranslator
{
private static Dictionary<TheirGender, MyGender> GenderTranslator = InitializeGenderTranslator();
private static Dictionary<TheirGender, MyGender> InitializeGenderTranslator()
{
var translator = new Dictionary<TheirGender, MyGender>();
translator.Add(TheirGender.Male, MyGender.Male);
translator.Add(TheirGender.Female, MyGender.Female);
translator.Add(TheirGender.Unknown, MyGender.Unknown);
return translator;
}
public static MyGender Translate(this TheirGender theirValue)
{
return GenderTranslator[theirValue];
}
public static TheirGender Translate(this MyGender myValue)
{
return GenderTranslator.FirstOrDefault(x => x.Value == myValue).Key;
}
}
Try with this code. I hope it's useful for you.
function sleep(seconds)
{
var e = new Date().getTime() + (seconds * 1000);
while (new Date().getTime() <= e) {}
}
Just started using Lombok today. So far I like it, but one drawback I didn't see mentioned was refactoring support.
If you have a class annotated with @Data
, it will generate the getters and setters for you based on the field names. If you use one of those getters in another class, then decide the field is poorly named, it will not find usages of those getters and setters and replace the old name with the new name.
I would imagine this would have to be done via an IDE plug-in and not via Lombok.
UPDATE (Jan 22 '13)
After using Lombok for 3 months, I still recommend it for most projects. I did, however, find another drawback that is similar to the one listed above.
If you have a class, say MyCompoundObject.java
that has 2 members, both annotated with @Delegate
, say myWidgets
and myGadgets
, when you call myCompoundObject.getThingies()
from another class, it's impossible to know if it's delegating to the Widget
or Gadget
because you can no longer jump to source within the IDE.
Using the Eclipse "Generate Delegate Methods..." provides you with the same functionality, is just as quick and provides source jumping. The downside is it clutters your source with boilerplate code that take the focus off the important stuff.
UPDATE 2 (Feb 26 '13)
After 5 months, we're still using Lombok, but I have some other annoyances. The lack of a declared getter & setter can get annoying at times when you are trying to familiarize yourself with new code.
For example, if I see a method called getDynamicCols()
but I don't know what it's about, I have some extra hurdles to jump to determine the purpose of this method. Some of the hurdles are Lombok, some are the lack of a Lombok smart plugin. Hurdles include:
Outline
view, so I didn't see the methods. Lack of References search. If I want to see who's calling getDynamicCols(args...)
, I have to generate or code the setter to be able to search for references. UPDATE 3 (Mar 7 '13)
Learning to use the various ways of doing things in Eclipse I guess. You can actually set a conditional breakpoint (BP) on a Lombok generated method. Using the Outline
view, you can right-click the method to Toggle Method Breakpoint
. Then when you hit the BP, you can use the debugging Variables
view to see what the generated method named the parameters (usually the same as the field name) and finally, use the Breakpoints
view to right-click the BP and select Breakpoint Properties...
to add a condition. Nice.
UPDATE 4 (Aug 16 '13)
Netbeans doesn't like it when you update your Lombok dependencies in your Maven pom. The project still compiles, but files get flagged for having compilation errors because it can't see the methods Lombok is creating. Clearing the Netbeans cache resolves the issue. Not sure if there is a "Clean Project" option like there is in Eclipse. Minor issue, but wanted to make it known.
UPDATE 5 (Jan 17 '14)
Lombok doesn't always play nice with Groovy, or at least the groovy-eclipse-compiler
. You might have to downgrade your version of the compiler.
Maven Groovy and Java + Lombok
UPDATE 6 (Jun 26 '14)
A word of warning. Lombok is slightly addictive and if you work on a project where you can't use it for some reason, it will annoy the piss out of you. You may be better off just never using it at all.
UPDATE 7 (Jul 23 '14)
This is a bit of an interesting update because it directly addresses the safety of adopting Lombok that the OP asked about.
As of v1.14, the @Delegate
annotation has been demoted to an Experimental status. The details are documented on their site (Lombok Delegate Docs).
The thing is, if you were using this feature, your backout options are limited. I see the options as:
@Delegate
annotations and generate/handcode the delegate code. This is a little harder if you were using attributes within the annotation.@Delegate
annotation and maybe add back in the annotations that you do want.As far as I can tell, Delombok doesn't have an option to remove a subset of annotations; it's all or nothing at least for the context of a single file. I opened a ticket to request this feature with Delombok flags, but I wouldn't expect that in the near future.
UPDATE 8 (Oct 20 '14)
If it's an option for you, Groovy offers most of the same benefits of Lombok, plus a boat load of other features, including @Delegate. If you think you'll have a hard time selling the idea to the powers that be, take a look at the @CompileStatic
or @TypeChecked
annotation to see if that can help your cause. In fact, the primary focus of the Groovy 2.0 release was static safety.
UPDATE 9 (Sep 1 '15)
Lombok is still being actively maintained and enhanced, which bodes well to the safety level of adoption. The @Builder annotations is one of my favorite new features.
UPDATE 10 (Nov 17 '15)
This may not seem directly related to the OP's question, but worth sharing. If you're looking for tools to help you reduce the amount of boilerplate code you write, you can also check out Google Auto - in particular AutoValue. If you look at their slide deck, the list Lombok as a possible solution to the problem they are trying to solve. The cons they list for Lombok are:
I'm not sure how much I agree with their evaluation. And given the cons of AutoValue that are documented in the slides, I'll be sticking with Lombok (if Groovy is not an option).
UPDATE 11 (Feb 8 '16)
I found out Spring Roo has some similar annotations. I was a little surprised to find out Roo is still a thing and finding documentation for the annotations is a bit rough. Removal also doesn't look as easy as de-lombok. Lombok seems like the safer choice.
UPDATE 12 (Feb 17 '16)
While trying to come up with justifications for why it's safe to bring in Lombok for the project I'm currently working on, I found a piece of gold that was added with v1.14
- The Configuration System! This is means you can configure a project to dis-allow certain features that your team deems unsafe or undesirable. Better yet, it can also create directory specific config with different settings. This is AWESOME.
UPDATE 13 (Oct 4 '16)
If this kind of thing matters to you, Oliver Gierke felt it was safe to add Lombok to Spring Data Rest.
UPDATE 14 (Sep 26 '17)
As pointed out by @gavenkoa in the comments on the OPs question, JDK9 compiler support isn't yet available (Issue #985). It also sounds like it's not going to be an easy fix for the Lombok team to get around.
UPDATE 15 (Mar 26 '18)
The Lombok changelog indicates as of v1.16.20 "Compiling lombok on JDK1.9 is now possible" even though #985 is still open.
Changes to accommodate JDK9, however, necessitated some breaking changes; all isolated to changes in config defaults. It's a little concerning that they introduced breaking changes, but the version only bumped the "Incremental" version number (going from v1.16.18 to v1.16.20). Since this post was about the safety, if you had a yarn/npm
like build system that automatically upgraded to the latest incremental version, you might be in for a rude awakening.
UPDATE 16 (Jan 9 '19)
It seems the JDK9 issues have been resolved and Lombok works with JDK10, and even JDK11 as far as I can tell.
One thing I noticed though that was concerning from a safety aspect is the fact that the change log going from v1.18.2 to v1.18.4 lists two items as BREAKING CHANGE
!? I'm not sure how a breaking change happens in a semver "patch" update. Could be an issue if you use a tool that auto-updates patch versions.
You could also do something like this :
function isPalindrome(str) {
var newStr = '';
for(var i = str.length - 1; i >=0; i--) {
newStr += str[i];
}
if(newStr == str) {
return true;
return newStr;
} else {
return false;
return newStr;
}
}
There are several Identity providers with SSO support out of the box, also third-party** products.
** The only problem with third party products is that they charge per user/month, and it can be quite expensive.
Some of the tools available and with APIs for .NET are:
If you decide to go with your own implementation, you could use the frameworks below categorized by programming language.
C#
Javascript
Python
I would go with IdentityServer4 and ASP.NET Core application, it's easy configurable and you can also add your own authentication provider. It uses OAuth/OpenID protocols which are newer than SAML 2.0 and WS-Federation.
package pac001;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
public class Entry_box{
public static final String[] relationship = {"Marrid", "Unmarried"};
public static void main(String[] args)
{
//TAKING USER ID NUMBER
int a = Integer.parseInt(JOptionPane.showInputDialog("Enter ID no: "));
// TAKING INPUT FOR RELATIONSHIP
JFrame frame = new JFrame("Input Dialog Example #3");
String Relationship = (String) JOptionPane.showInputDialog(frame,"Select Your Relationship","Married",
JOptionPane.QUESTION_MESSAGE, null, relationship,relationship[0]);
//PRINTING THE ID NUMBER
System.out.println("ID no: "+a);
// PRINTING RESULT FOR RELATIONSHIP INPUT
System.out.printf("Mariitual Status: %s\n", Relationship);
}
}
Double precision means the numbers takes twice the word-length to store. On a 32-bit processor, the words are all 32 bits, so doubles are 64 bits. What this means in terms of performance is that operations on double precision numbers take a little longer to execute. So you get a better range, but there is a small hit on performance. This hit is mitigated a little by hardware floating point units, but its still there.
The N64 used a MIPS R4300i-based NEC VR4300 which is a 64 bit processor, but the processor communicates with the rest of the system over a 32-bit wide bus. So, most developers used 32 bit numbers because they are faster, and most games at the time did not need the additional precision (so they used floats not doubles).
All three systems can do single and double precision floating operations, but they might not because of performance. (although pretty much everything after the n64 used a 32 bit bus so...)
You can use comments like in regular JavaScript:
[...] TypeScript syntax is a superset of ECMAScript 2015 (ES2015) syntax.
[...] This document describes the syntactic grammar added by TypeScript [...]
Source: TypeScript Language Specification
The only two mentions of the word "comments" in the spec are:
[...] TypeScript also provides to JavaScript programmers a system of optional type annotations. These type annotations are like the JSDoc comments found in the Closure system, but in TypeScript they are integrated directly into the language syntax. This integration makes the code more readable and reduces the maintenance cost of synchronizing type annotations with their corresponding variables.
11.1.1 Source Files Dependencies
[...] A comment of the form
/// <reference path="..."/>
adds a dependency on the source file specified in the path argument. The path is resolved relative to the directory of the containing source file.
From the Official documentation,
For example, to set the background color to orange:
<meta name="theme-color" content="#db5945">
In addition, Chrome will show beautiful high-res favicons when they’re provided. Chrome for Android picks the highest res icon that you provide, and we recommend providing a 192×192px PNG file. For example:
<link rel="icon" sizes="192x192" href="nice-highres.png">
Use a slice, not an arrray. Just create it using
reg := []string {"a","b","c"}
An alternative would have been to convert your array to a slice when joining :
fmt.Println(strings.Join(reg[:],","))
Read the Go blog about the differences between slices and arrays.
For ordinary table markup, here's a short solution that works on all devices/browsers on BrowserStack, except IE 7 and below:
table { border-collapse: collapse; }
td + td,
th + th { border-left: 1px solid; }
tr + tr { border-top: 1px solid; }
For IE 7 support, add this:
tr + tr > td,
tr + tr > th { border-top: 1px solid; }
A test case can be seen here: http://codepen.io/dalgard/pen/wmcdE