Please think really hard about if you do need to kill the application: why not let the OS figure out where and when to free the resources?
Otherwise, if you're absolutely really sure, use
finish();
As a reaction to @dave appleton's comment: First thing read the big question/answer combo @gabriel posted: Is quitting an application frowned upon?
Now assuming we have that, the question here still has an answer, being that the code you need if you are doing anything with quitting is finish()
. Obviously you can have more than one activity etc etc, but that's not the point. Lets run by some of the use-cases
So in the end, ofcourse, finish()
doesn't kill everthing, but it is still the tool you need I think. If there is a usecase for "kill all activities", I haven't found it yet.
open the console as a administrator. Right Click on the command prompt or bash -> more and select "run as administrator"
Just do this way:-
$('ul li').on('click', function(e) {
alert($(this).index());
});
OR
$('ul li').click(function() {
alert($(this).index());
});
Regarding this part:
When I convert it to UTF-8 without bom and close file, the file is again ANSI when I reopen.
The easiest solution is to avoid the problem entirely by properly configuring Notepad++.
Try Settings
-> Preferences
-> New document
-> Encoding
-> choose UTF-8
without BOM, and check Apply to opened ANSI files
.
That way all the opened ANSI files will be treated as UTF-8 without BOM.
For explanation what's going on, read the comments below this answer.
To fully learn about Unicode and UTF-8, read this excellent article from Joel Spolsky.
Note that there are other ways of achieving data consistency that #pragma pack offers (for instance some people use #pragma pack(1) for structures that should be sent across the network). For instance, see the following code and its subsequent output:
#include <stdio.h>
struct a {
char one;
char two[2];
char eight[8];
char four[4];
};
struct b {
char one;
short two;
long int eight;
int four;
};
int main(int argc, char** argv) {
struct a twoa[2] = {};
struct b twob[2] = {};
printf("sizeof(struct a): %i, sizeof(struct b): %i\n", sizeof(struct a), sizeof(struct b));
printf("sizeof(twoa): %i, sizeof(twob): %i\n", sizeof(twoa), sizeof(twob));
}
The output is as follows: sizeof(struct a): 15, sizeof(struct b): 24 sizeof(twoa): 30, sizeof(twob): 48
Notice how the size of struct a is exactly what the byte count is, but struct b has padding added (see this for details on the padding). By doing this as opposed to the #pragma pack you can have control of converting the "wire format" into the appropriate types. For instance, "char two[2]" into a "short int" et cetera.
There are two ways of storing a color with alpha. The first is exactly as you see it, with each component as-is. The second is to use pre-multiplied alpha, where the color values are multiplied by the alpha after converting it to the range 0.0-1.0; this is done to make compositing easier. Ordinarily you shouldn't notice or care which way is implemented by any particular engine, but there are corner cases where you might, for example if you tried to increase the opacity of the color. If you use rgba(0, 0, 0, 0)
you are less likely to to see a difference between the two approaches.
For demo code that conforms to POSIX standard as described in Setting Terminal Modes Properly
and Serial Programming Guide for POSIX Operating Systems, the following is offered.
This code should execute correctly using Linux on x86 as well as ARM (or even CRIS) processors.
It's essentially derived from the other answer, but inaccurate and misleading comments have been corrected.
This demo program opens and initializes a serial terminal at 115200 baud for non-canonical mode that is as portable as possible.
The program transmits a hardcoded text string to the other terminal, and delays while the output is performed.
The program then enters an infinite loop to receive and display data from the serial terminal.
By default the received data is displayed as hexadecimal byte values.
To make the program treat the received data as ASCII codes, compile the program with the symbol DISPLAY_STRING, e.g.
cc -DDISPLAY_STRING demo.c
If the received data is ASCII text (rather than binary data) and you want to read it as lines terminated by the newline character, then see this answer for a sample program.
#define TERMINAL "/dev/ttyUSB0"
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
int set_interface_attribs(int fd, int speed)
{
struct termios tty;
if (tcgetattr(fd, &tty) < 0) {
printf("Error from tcgetattr: %s\n", strerror(errno));
return -1;
}
cfsetospeed(&tty, (speed_t)speed);
cfsetispeed(&tty, (speed_t)speed);
tty.c_cflag |= (CLOCAL | CREAD); /* ignore modem controls */
tty.c_cflag &= ~CSIZE;
tty.c_cflag |= CS8; /* 8-bit characters */
tty.c_cflag &= ~PARENB; /* no parity bit */
tty.c_cflag &= ~CSTOPB; /* only need 1 stop bit */
tty.c_cflag &= ~CRTSCTS; /* no hardware flowcontrol */
/* setup for non-canonical mode */
tty.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON);
tty.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
tty.c_oflag &= ~OPOST;
/* fetch bytes as they become available */
tty.c_cc[VMIN] = 1;
tty.c_cc[VTIME] = 1;
if (tcsetattr(fd, TCSANOW, &tty) != 0) {
printf("Error from tcsetattr: %s\n", strerror(errno));
return -1;
}
return 0;
}
void set_mincount(int fd, int mcount)
{
struct termios tty;
if (tcgetattr(fd, &tty) < 0) {
printf("Error tcgetattr: %s\n", strerror(errno));
return;
}
tty.c_cc[VMIN] = mcount ? 1 : 0;
tty.c_cc[VTIME] = 5; /* half second timer */
if (tcsetattr(fd, TCSANOW, &tty) < 0)
printf("Error tcsetattr: %s\n", strerror(errno));
}
int main()
{
char *portname = TERMINAL;
int fd;
int wlen;
char *xstr = "Hello!\n";
int xlen = strlen(xstr);
fd = open(portname, O_RDWR | O_NOCTTY | O_SYNC);
if (fd < 0) {
printf("Error opening %s: %s\n", portname, strerror(errno));
return -1;
}
/*baudrate 115200, 8 bits, no parity, 1 stop bit */
set_interface_attribs(fd, B115200);
//set_mincount(fd, 0); /* set to pure timed read */
/* simple output */
wlen = write(fd, xstr, xlen);
if (wlen != xlen) {
printf("Error from write: %d, %d\n", wlen, errno);
}
tcdrain(fd); /* delay for output */
/* simple noncanonical input */
do {
unsigned char buf[80];
int rdlen;
rdlen = read(fd, buf, sizeof(buf) - 1);
if (rdlen > 0) {
#ifdef DISPLAY_STRING
buf[rdlen] = 0;
printf("Read %d: \"%s\"\n", rdlen, buf);
#else /* display hex */
unsigned char *p;
printf("Read %d:", rdlen);
for (p = buf; rdlen-- > 0; p++)
printf(" 0x%x", *p);
printf("\n");
#endif
} else if (rdlen < 0) {
printf("Error from read: %d: %s\n", rdlen, strerror(errno));
} else { /* rdlen == 0 */
printf("Timeout from read\n");
}
/* repeat read to get full message */
} while (1);
}
For an example of an efficient program that provides buffering of received data yet allows byte-by-byte handing of the input, then see this answer.
I've found this easy solution
To convert from bitmap to Base64 use this method.
private String convertBitmapToBase64(Bitmap bitmap) {
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, byteArrayOutputStream);
byte[] byteArray = byteArrayOutputStream .toByteArray();
return Base64.encodeToString(byteArray, Base64.DEFAULT);
}
To convert from Base64 to bitmap OR revert.
private Bitmap convertBase64ToBitmap(String b64) {
byte[] imageAsBytes = Base64.decode(b64.getBytes(), Base64.DEFAULT);
return BitmapFactory.decodeByteArray(imageAsBytes, 0, imageAsBytes.length);
}
Status 2018-07: Amazon do have native sql like search for csv and json files!
Keep in mind before use window and location
1.use window and location in client side render (Note:don't use in ssr)
window.location.host;
or
var host = window.location.protocol + "//" + window.location.host;
2.server side render
if your using nuxt.js(vue) or next.js(react) refer docs
For nuxt js Framework
req.headers.host
code:
async asyncData ({ req, res }) {
if (process.server) {
return { host: req.headers.host }
}
Code In router:
export function createRouter (ssrContext) {
console.log(ssrContext.req.headers.host)
return new Router({
middleware: 'route',
routes:checkRoute(ssrContext),
mode: 'history'
})
}
For next.js framework
Home.getInitalProps = async(context) => {
const { req, query, res, asPath, pathname } = context;
if (req) {
let host = req.headers.host // will give you localhost:3000
}
}
For node.js users
var os = require("os");
var hostname = os.hostname();
or
request.headers.host
For laravel users
public function yourControllerFun(Request $request) {
$host = $request->getHttpHost();
dd($host);
}
or
directly use in web.php
Request::getHost();
Note :
both csr and ssr app you manually check example ssr render
if(req.server){
host=req.host;
}
if(req.client){
host=window.location.host;
}
And one more....
var _e = $(e.target); // e being the event triggered
var element = _e.parent(); // the element the event was triggered on
console.log("_E " + element.context); // [object HTMLInputElement]
console.log("_E FORM " + element.context.form); // [object HTMLFormElement]
console.log("_E FORM " + element.context.form.id); // form id
It would seem that is.nan
doesn't actually have a method for data frames, unlike is.na
. So, let's fix that!
is.nan.data.frame <- function(x)
do.call(cbind, lapply(x, is.nan))
data123[is.nan(data123)] <- 0
Use CRTL+BREAK to suspend execution at any point. You will be put into break mode and can press F5 to continue the execution or F8 to execute the code step-by-step in the visual debugger.
Of course this only works when there is no message box open, so if your VBA code constantly opens message boxes for some reason it will become a little tricky to press the keys at the right moment.
You can even edit most of the code while it is running.
Use Debug.Print
to print out messages to the Immediate Window in the VBA editor, that's way more convenient than MsgBox
.
Use breakpoints or the Stop
keyword to automatically halt execution in interesting areas.
You can use Debug.Assert
to halt execution conditionally.
for docker-compose you can try just add
network_mode: "host"
example :
version: '2'
services:
feedx:
build: web
ports:
- "127.0.0.1:8000:8000"
network_mode: "host"
do like this-paste your html code inside your separate html file using GET method.
$mail->IsHTML(true);
$mail->WordWrap = 70;
$mail->addAttachment= $_GET['addattachment']; $mail->AltBody
=$_GET['AltBody']; $mail->Subject = $_GET['subject']; $mail->Body = $_GET['body'];
Error: The conversion of a datetime2 data type to a datetime data type resulted in an out-of-range value.
This error occurred when due to NOT assigning any value against a NOT NULL date column in SQL DB using EF and was resolved by assigning the same.
Hope this helps!
I would rather create a function like TryParse or use T-SQL TRY-CATCH
block to get what you wanted.
ISNUMERIC doesn't always work as intended. The code given before will fail if you do:
SET @text = '$'
$ sign can be converted to money datatype, so ISNUMERIC()
returns true in that case. It will do the same for '-' (minus), ',' (comma) and '.' characters.
Array.filter is not implemented in many browsers,It is better to define this function if it does not exist.
The source code for Array.prototype is posted in MDN
if (!Array.prototype.filter)
{
Array.prototype.filter = function(fun /*, thisp */)
{
"use strict";
if (this == null)
throw new TypeError();
var t = Object(this);
var len = t.length >>> 0;
if (typeof fun != "function")
throw new TypeError();
var res = [];
var thisp = arguments[1];
for (var i = 0; i < len; i++)
{
if (i in t)
{
var val = t[i]; // in case fun mutates this
if (fun.call(thisp, val, i, t))
res.push(val);
}
}
return res;
};
}
see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter for more details
The issue is with
At the time of writing this, no environment supports ES6 modules natively. When using them in Node.js you need to use something like Babel to convert the modules to CommonJS. But how exactly does that happen?
Many people consider module.exports = ...
to be equivalent to export default ...
and exports.foo ...
to be equivalent to export const foo = ...
. That's not quite true though, or at least not how Babel does it.
ES6 default
exports are actually also named exports, except that default
is a "reserved" name and there is special syntax support for it. Lets have a look how Babel compiles named and default exports:
// input
export const foo = 42;
export default 21;
// output
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
var foo = exports.foo = 42;
exports.default = 21;
Here we can see that the default export becomes a property on the exports
object, just like foo
.
We can import the module in two ways: Either using CommonJS or using ES6 import
syntax.
Your issue: I believe you are doing something like:
var bar = require('./input');
new bar();
expecting that bar
is assigned the value of the default export. But as we can see in the example above, the default export is assigned to the default
property!
So in order to access the default export we actually have to do
var bar = require('./input').default;
If we use ES6 module syntax, namely
import bar from './input';
console.log(bar);
Babel will transform it to
'use strict';
var _input = require('./input');
var _input2 = _interopRequireDefault(_input);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
console.log(_input2.default);
You can see that every access to bar
is converted to access .default
.
MySQL Manual - slow-query-log-file
This claims that you can run the following to set the slow-log file (5.1.6 onwards):
set global slow_query_log_file = 'path';
The variable slow_query_log just controls whether it is enabled or not.
If you don't want to convert the entire Map into an array beforehand, and/or destructure key-value arrays, you can use this silly function:
/**_x000D_
* Map over an ES6 Map._x000D_
*_x000D_
* @param {Map} map_x000D_
* @param {Function} cb Callback. Receives two arguments: key, value._x000D_
* @returns {Array}_x000D_
*/_x000D_
function mapMap(map, cb) {_x000D_
let out = new Array(map.size);_x000D_
let i = 0;_x000D_
map.forEach((val, key) => {_x000D_
out[i++] = cb(key, val);_x000D_
});_x000D_
return out;_x000D_
}_x000D_
_x000D_
let map = new Map([_x000D_
["a", 1],_x000D_
["b", 2],_x000D_
["c", 3]_x000D_
]);_x000D_
_x000D_
console.log(_x000D_
mapMap(map, (k, v) => `${k}-${v}`).join(', ')_x000D_
); // a-1, b-2, c-3
_x000D_
Here's a batch file, called base64encode.bat, that encodes base64.
@echo off
if not "%1" == "" goto :arg1exists
echo usage: base64encode input-file [output-file]
goto :eof
:arg1exists
set base64out=%2
if "%base64out%" == "" set base64out=con
(
set base64tmp=base64.tmp
certutil -encode "%1" %base64tmp% > nul
findstr /v /c:- %base64tmp%
erase %base64tmp%
) > %base64out%
If got your question right you want to do something like
update table
set identity_column_name = some value
Let me tell you, it is not an easy process and it is not advisable to use it, as there may be some foreign key
associated on it.
But here are steps to do it, Please take a back-up
of table
Step 1- Select design view of the table
Step 2- Turn off the identity column
Now you can use the update
query.
Now redo
the step 1 and step 2 and Turn on the identity column
The value_type
of a map
is a pair
containing the key and value as it's first
and second
member, respectively.
map<string, int>::iterator it;
for (it = symbolTable.begin(); it != symbolTable.end(); it++)
{
std::cout << it->first << ' ' << it->second << '\n';
}
Or with C++11, using range-based for:
for (auto const& p : symbolTable)
{
std::cout << p.first << ' ' << p.second << '\n';
}
Use the menu item Settings>Preferences.
On the MISC tab of the resulting dialog, uncheck "Remember current session for next launch."
You can use Len(StrFile) > 0
in loop check statement !
Sub openMyfile()
Dim Source As String
Dim StrFile As String
'do not forget last backslash in source directory.
Source = "E:\Planning\03\"
StrFile = Dir(Source)
Do While Len(StrFile) > 0
Workbooks.Open Filename:=Source & StrFile
StrFile = Dir()
Loop
End Sub
It's an old question now, nevertheless I had the same issue and found a solution that works for me: I wrote MultiRedirectMixin.
from django.http import HttpResponseRedirect
class MultiRedirectMixin(object):
"""
A mixin that supports submit-specific success redirection.
Either specify one success_url, or provide dict with names of
submit actions given in template as keys
Example:
In template:
<input type="submit" name="create_new" value="Create"/>
<input type="submit" name="delete" value="Delete"/>
View:
MyMultiSubmitView(MultiRedirectMixin, forms.FormView):
success_urls = {"create_new": reverse_lazy('create'),
"delete": reverse_lazy('delete')}
"""
success_urls = {}
def form_valid(self, form):
""" Form is valid: Pick the url and redirect.
"""
for name in self.success_urls:
if name in form.data:
self.success_url = self.success_urls[name]
break
return HttpResponseRedirect(self.get_success_url())
def get_success_url(self):
"""
Returns the supplied success URL.
"""
if self.success_url:
# Forcing possible reverse_lazy evaluation
url = force_text(self.success_url)
else:
raise ImproperlyConfigured(
_("No URL to redirect to. Provide a success_url."))
return url
In the default settings, VS Code uses the following fonts (14 pt) in descending order:
How to verify: VS Code runs in a browser. In the first version, you could hit F12 to open the Developer Tools. Inspecting the DOM, you can find a containing several s that make up that line of code. Inspecting one of those spans, you can see that font-family is just the list above.
One reason why big O gets used so much is kind of because it gets used so much. A lot of people see the notation and think they know what it means, then use it (wrongly) themselves. This happens a lot with programmers whose formal education only went so far - I was once guilty myself.
Another is because it's easier to type a big O on most non-Greek keyboards than a big theta.
But I think a lot is because of a kind of paranoia. I worked in defence-related programming for a bit (and knew very little about algorithm analysis at the time). In that scenario, the worst case performance is always what people are interested in, because that worst case might just happen at the wrong time. It doesn't matter if the actually probability of that happening is e.g. far less than the probability of all members of a ships crew suffering a sudden fluke heart attack at the same moment - it could still happen.
Though of course a lot of algorithms have their worst case in very common circumstances - the classic example being inserting in-order into a binary tree to get what's effectively a singly-linked list. A "real" assessment of average performance needs to take into account the relative frequency of different kinds of input.
Simple jQuery plugin for delayed window resize event.
Add new function to resize event
jQuery(window).resizeDelayed( func, delay, id ); // delay and id are optional
Remove the function(by declaring its ID) added earlier
jQuery(window).resizeDelayed( false, id );
Remove all functions
jQuery(window).resizeDelayed( false );
// ADD SOME FUNCTIONS TO RESIZE EVENT
jQuery(window).resizeDelayed( function(){ console.log( 'first event - should run after 0.4 seconds'); }, 400, 'id-first-event' );
jQuery(window).resizeDelayed( function(){ console.log('second event - should run after 1.5 seconds'); }, 1500, 'id-second-event' );
jQuery(window).resizeDelayed( function(){ console.log( 'third event - should run after 3.0 seconds'); }, 3000, 'id-third-event' );
// LETS DELETE THE SECOND ONE
jQuery(window).resizeDelayed( false, 'id-second-event' );
// LETS ADD ONE WITH AUTOGENERATED ID(THIS COULDNT BE DELETED LATER) AND DEFAULT TIMEOUT (500ms)
jQuery(window).resizeDelayed( function(){ console.log('newest event - should run after 0.5 second'); } );
// LETS CALL RESIZE EVENT MANUALLY MULTIPLE TIMES (OR YOU CAN RESIZE YOUR BROWSER WINDOW) TO SEE WHAT WILL HAPPEN
jQuery(window).resize().resize().resize().resize().resize().resize().resize();
USAGE OUTPUT:
first event - should run after 0.4 seconds
newest event - should run after 0.5 second
third event - should run after 3.0 seconds
jQuery.fn.resizeDelayed = (function(){
// >>> THIS PART RUNS ONLY ONCE - RIGHT NOW
var rd_funcs = [], rd_counter = 1, foreachResizeFunction = function( func ){ for( var index in rd_funcs ) { func(index); } };
// REGISTER JQUERY RESIZE EVENT HANDLER
jQuery(window).resize(function() {
// SET/RESET TIMEOUT ON EACH REGISTERED FUNCTION
foreachResizeFunction(function(index){
// IF THIS FUNCTION IS MANUALLY DISABLED ( by calling jQuery(window).resizeDelayed(false, 'id') ),
// THEN JUST CONTINUE TO NEXT ONE
if( rd_funcs[index] === false )
return; // CONTINUE;
// IF setTimeout IS ALREADY SET, THAT MEANS THAT WE SHOULD RESET IT BECAUSE ITS CALLED BEFORE DURATION TIME EXPIRES
if( rd_funcs[index].timeout !== false )
clearTimeout( rd_funcs[index].timeout );
// SET NEW TIMEOUT BY RESPECTING DURATION TIME
rd_funcs[index].timeout = setTimeout( rd_funcs[index].func, rd_funcs[index].delay );
});
});
// <<< THIS PART RUNS ONLY ONCE - RIGHT NOW
// RETURN THE FUNCTION WHICH JQUERY SHOULD USE WHEN jQuery(window).resizeDelayed(...) IS CALLED
return function( func_or_false, delay_or_id, id ){
// FIRST PARAM SHOULD BE SET!
if( typeof func_or_false == "undefined" ){
console.log( 'jQuery(window).resizeDelayed(...) REQUIRES AT LEAST 1 PARAMETER!' );
return this; // RETURN JQUERY OBJECT
}
// SHOULD WE DELETE THE EXISTING FUNCTION(S) INSTEAD OF CREATING A NEW ONE?
if( func_or_false == false ){
// DELETE ALL REGISTERED FUNCTIONS?
if( typeof delay_or_id == "undefined" ){
// CLEAR ALL setTimeout's FIRST
foreachResizeFunction(function(index){
if( typeof rd_funcs[index] != "undefined" && rd_funcs[index].timeout !== false )
clearTimeout( rd_funcs[index].timeout );
});
rd_funcs = [];
return this; // RETURN JQUERY OBJECT
}
// DELETE ONLY THE FUNCTION WITH SPECIFIC ID?
else if( typeof rd_funcs[delay_or_id] != "undefined" ){
// CLEAR setTimeout FIRST
if( rd_funcs[delay_or_id].timeout !== false )
clearTimeout( rd_funcs[delay_or_id].timeout );
rd_funcs[delay_or_id] = false;
return this; // RETURN JQUERY OBJECT
}
}
// NOW, FIRST PARAM MUST BE THE FUNCTION
if( typeof func_or_false != "function" )
return this; // RETURN JQUERY OBJECT
// SET THE DEFAULT DELAY TIME IF ITS NOT ALREADY SET
if( typeof delay_or_id == "undefined" || isNaN(delay_or_id) )
delay_or_id = 500;
// SET THE DEFAULT ID IF ITS NOT ALREADY SET
if( typeof id == "undefined" )
id = rd_counter;
// ADD NEW FUNCTION TO RESIZE EVENT
rd_funcs[id] = {
func : func_or_false,
delay: delay_or_id,
timeout : false
};
rd_counter++;
return this; // RETURN JQUERY OBJECT
}
})();
This should work:
$ mkdir -p dir
or:
if [[ ! -e $dir ]]; then
mkdir $dir
elif [[ ! -d $dir ]]; then
echo "$dir already exists but is not a directory" 1>&2
fi
which will create the directory if it doesn't exist, but warn you if the name of the directory you're trying to create is already in use by something other than a directory.
I found this link to be useful: css-tricks fade-in fade-out css.
Here's a summary of the csstricks post:
CSS classes:
.m-fadeOut {
visibility: hidden;
opacity: 0;
transition: visibility 0s linear 300ms, opacity 300ms;
}
.m-fadeIn {
visibility: visible;
opacity: 1;
transition: visibility 0s linear 0s, opacity 300ms;
}
In React:
toggle(){
if(true condition){
this.setState({toggleClass: "m-fadeIn"});
}else{
this.setState({toggleClass: "m-fadeOut"});
}
}
render(){
return (<div className={this.state.toggleClass}>Element to be toggled</div>)
}
More generally, under most circumstances, underscore functions that take a list and argument as the first two arguments, provide access to the list index as the next to last argument to the iterator. This is an important distinction when it comes to the two underscore functions, _.reduce and _.reduceRight, that take 'memo' as their third argument -- in the case of these two the index will not be the second argument, but the third:
var destination = (function() {
var fields = ['_333st', 'offroad', 'fbi'];
return _.reduce(waybillInfo.destination.split(','), function(destination, segment, index) {
destination[fields[index]] = segment;
return destination;
}, {});
})();
console.log(destination);
/*
_333st: "NYARFTW TX"
fbi: "FTWUP"
offroad: "UP"
The following is better of course but not demonstrate my point:
var destination = _.object(['_333st', 'offroad', 'fbi'], waybillInfo.destination.split(','));
*/
So if you wanted you could get the index using underscore itself: _.last(_.initial(arguments))
. A possible exception (I haven't tried) is _.map, as it can take an object instead of a list: "If list is a JavaScript object, iterator's arguments will be (value, key, list)." -- see: http://underscorejs.org/#map
UPDATE [4/25/2016] Now better written and fully supported version with more options and abilities hosted at GitHub.jQRSS
I saw the Selected Answer by Nathan Strutz, however, the jQuery Plugin page link is still down and the home page for that site did not seem to load. I tried a few other solutions and found most of them to be, not only out-dated, but EASY! Thus I threw my hat out there and made my own plugin, and with the dead links here, this seems like a great place to submit an answer. If you're looking for this answer in 2012 (soon to b 2013) you may notice the frustration of dead links and old advice here as I did. Below is a link to my modern plugin example as well as the code to the plugin! Simply copy the code into a JS file & link it in your header like any other plugin. Use is EXTREMELY EZ!
Plugin Code
2/9/2015 - made long overdue update to check forconsole
before sending commands to it! Should help with older IE issues.
(function($) {
if (!$.jQRSS) {
$.extend({
jQRSS: function(rss, options, func) {
if (arguments.length <= 0) return false;
var str, obj, fun;
for (i=0;i<arguments.length;i++) {
switch(typeof arguments[i]) {
case "string":
str = arguments[i];
break;
case "object":
obj = arguments[i];
break;
case "function":
fun = arguments[i];
break;
}
}
if (str == null || str == "") {
if (!obj['rss']) return false;
if (obj.rss == null || obj.rss == "") return false;
}
var o = $.extend(true, {}, $.jQRSS.defaults);
if (typeof obj == "object") {
if ($.jQRSS.methods.getObjLength(obj) > 0) {
o = $.extend(true, o, obj);
}
}
if (str != "" && !o.rss) o.rss = str;
o.rss = escape(o.rss);
var gURL = $.jQRSS.props.gURL
+ $.jQRSS.props.type
+ "?v=" + $.jQRSS.props.ver
+ "&q=" + o.rss
+ "&callback=" + $.jQRSS.props.callback;
var ajaxData = {
num: o.count,
output: o.output,
};
if (o.historical) ajaxData.scoring = $.jQRSS.props.scoring;
if (o.userip != null) ajaxData.scoring = o.userip;
$.ajax({
url: gURL,
beforeSend: function (jqXHR, settings) { if (window['console']) { console.log(new Array(30).join('-'), "REQUESTING RSS XML", new Array(30).join('-')); console.log({ ajaxData: ajaxData, ajaxRequest: settings.url, jqXHR: jqXHR, settings: settings, options: o }); console.log(new Array(80).join('-')); } },
dataType: o.output != "xml" ? "json" : "xml",
data: ajaxData,
type: "GET",
xhrFields: { withCredentials: true },
error: function (jqXHR, textStatus, errorThrown) { return new Array("ERROR", { jqXHR: jqXHR, textStatus: textStatus, errorThrown: errorThrown } ); },
success: function (data, textStatus, jqXHR) {
var f = data['responseData'] ? data.responseData['feed'] ? data.responseData.feed : null : null,
e = data['responseData'] ? data.responseData['feed'] ? data.responseData.feed['entries'] ? data.responseData.feed.entries : null : null : null
if (window['console']) {
console.log(new Array(30).join('-'), "SUCCESS", new Array(30).join('-'));
console.log({ data: data, textStatus: textStatus, jqXHR: jqXHR, feed: f, entries: e });
console.log(new Array(70).join('-'));
}
if (fun) {
return fun.call(this, data['responseData'] ? data.responseData['feed'] ? data.responseData.feed : data.responseData : null);
}
else {
return { data: data, textStatus: textStatus, jqXHR: jqXHR, feed: f, entries: e };
}
}
});
}
});
$.jQRSS.props = {
callback: "?",
gURL: "http://ajax.googleapis.com/ajax/services/feed/",
scoring: "h",
type: "load",
ver: "1.0"
};
$.jQRSS.methods = {
getObjLength: function(obj) {
if (typeof obj != "object") return -1;
var objLength = 0;
$.each(obj, function(k, v) { objLength++; })
return objLength;
}
};
$.jQRSS.defaults = {
count: "10", // max 100, -1 defaults 100
historical: false,
output: "json", // json, json_xml, xml
rss: null, // url OR search term like "Official Google Blog"
userip: null
};
}
})(jQuery);
USE
// Param ORDER does not matter, however, you must have a link and a callback function
// link can be passed as "rss" in options
// $.jQRSS(linkORsearchString, callbackFunction, { options })
$.jQRSS('someUrl.xml', function(feed) { /* do work */ })
$.jQRSS(function(feed) { /* do work */ }, 'someUrl.xml', { count: 20 })
$.jQRSS('someUrl.xml', function(feed) { /* do work */ }, { count: 20 })
$.jQRSS({ count: 20, rss: 'someLink.xml' }, function(feed) { /* do work */ })
$.jQRSS('Search Words Here instead of a Link', function(feed) { /* do work */ })
// TODO: Needs fixing
Options
{
count: // default is 10; max is 100. Setting to -1 defaults to 100
historical: // default is false; a value of true instructs the system to return any additional historical entries that it might have in its cache.
output: // default is "json"; "json_xml" retuns json object with xmlString / "xml" returns the XML as String
rss: // simply an alternate place to put news feed link or search terms
userip: // as this uses Google API, I'll simply insert there comment on this:
/* Reference: https://developers.google.com/feed/v1/jsondevguide
This argument supplies the IP address of the end-user on
whose behalf the request is being made. Google is less
likely to mistake requests for abuse when they include
userip. In choosing to utilize this parameter, please be
sure that you're in compliance with any local laws,
including any laws relating to disclosure of personal
information being sent.
*/
}
In my opinion, deferreds/promises (as you have mentionned) is the way to go, rather than using timeouts.
Here is an example I have just written to demonstrate how you could do it using deferreds/promises.
Take some time to play around with deferreds. Once you really understand them, it becomes very easy to perform asynchronous tasks.
Hope this helps!
$(function(){
function1().done(function(){
// function1 is done, we can now call function2
console.log('function1 is done!');
function2().done(function(){
//function2 is done
console.log('function2 is done!');
});
});
});
function function1(){
var dfrd1 = $.Deferred();
var dfrd2= $.Deferred();
setTimeout(function(){
// doing async stuff
console.log('task 1 in function1 is done!');
dfrd1.resolve();
}, 1000);
setTimeout(function(){
// doing more async stuff
console.log('task 2 in function1 is done!');
dfrd2.resolve();
}, 750);
return $.when(dfrd1, dfrd2).done(function(){
console.log('both tasks in function1 are done');
// Both asyncs tasks are done
}).promise();
}
function function2(){
var dfrd1 = $.Deferred();
setTimeout(function(){
// doing async stuff
console.log('task 1 in function2 is done!');
dfrd1.resolve();
}, 2000);
return dfrd1.promise();
}
Try
//*[text()='qwerty']
because .
is your current element
I modified the script by Nicolay77 to output the database to stdout (the usual way of unix scripts) so that I could output the data to text file or pipe it to any program I want. The resulting script is a bit simpler and works well.
Some examples:
./mdb_to_mysql.sh database.mdb > data.sql
./mdb_to_mysql.sh database.mdb | mysql destination-db -u user -p
Here is the modified script (save to mdb_to_mysql.sh)
#!/bin/bash
TABLES=$(mdb-tables -1 $1)
for t in $TABLES
do
echo "DROP TABLE IF EXISTS $t;"
done
mdb-schema $1 mysql
for t in $TABLES
do
mdb-export -D '%Y-%m-%d %H:%M:%S' -I mysql $1 $t
done
This seems to be answered - #include <fstream>
.
The message means :-
incomplete type
- the class has not been defined with a full class. The compiler has seen statements such as class ifstream;
which allow it to understand that a class exists, but does not know how much memory the class takes up.
The forward declaration allows the compiler to make more sense of :-
void BindInput( ifstream & inputChannel );
It understands the class exists, and can send pointers and references through code without being able to create the class, see any data within the class, or call any methods of the class.
The has initializer
seems a bit extraneous, but is saying that the incomplete object is being created.
I'd suggest OOWeb to act as an HTTP server and a templating engine like Velocity to generate HTML. I also second Esko's suggestion of Wicket. Both solutions are considerably simpler than the average setup.
Another issue here is that you likely need to turn off "connect as media device" to be able to connect with adb.
By default in MySQL server remote access is disabled. The process to provide a remote access to user is.
PATH
mysql -uroot -proot
(or whatever the root password is.)mysql>
GRANT ALL PRIVILEGES ON *.* TO 'username'@'IP' IDENTIFIED BY 'password';
Here IP is IP address for which you want to allow remote access, if we put %
any IP address can access remotely.
Example:
C:\Users\UserName> cd C:\Program Files (x86)\MySQL\MySQL Server 5.0\bin
C:\Program Files (x86)\MySQL\MySQL Server 5.0\bin>mysql -uroot -proot
mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'root';
Query OK, 0 rows affected (0.27 sec)
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.25 sec)
This for a other user.
mysql> GRANT ALL PRIVILEGES ON *.* TO 'testUser'@'%' IDENTIFIED BY 'testUser';
Query OK, 0 rows affected (0.00 sec)
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)
Hope this will help
The truly terrible way to do it is to execute each INSERT
statement as its own batch:
Batch 1:
INSERT INTO Entries (id, name) VALUES (1, 'Ian Boyd);
Batch 2:
INSERT INTO Entries (id, name) VALUES (2, 'Bottlenecked);
Batch 3:
INSERT INTO Entries (id, name) VALUES (3, 'Marek Grzenkowicz);
Batch 4:
INSERT INTO Entries (id, name) VALUES (4, 'Giorgi);
Batch 5:
INSERT INTO Entries (id, name) VALUES (5, 'AMissico);
Note: Parameterization, error checking, and any other nit-picks elided for expoistory purposes.
This is truly, horrible, terrible way to do things. It gives truely awful performance, because you suffer the network round-trip-time every time.
A much better solution is to batch all the INSERT
statements into one batch:
Batch 1:
INSERT INTO Entries (id, name) VALUES (1, 'Ian Boyd');
INSERT INTO Entries (id, name) VALUES (2, 'Bottlenecked');
INSERT INTO Entries (id, name) VALUES (3, 'Marek Grzenkowicz');
INSERT INTO Entries (id, name) VALUES (4, 'Giorgi');
INSERT INTO Entries (id, name) VALUES (5, 'AMissico');
This way you only suffer one-round trip. This version has huge performance wins; on the order of 5x faster.
Even better is to use the VALUES
clause:
INSERT INTO Entries (id, name)
VALUES
(1, 'Ian Boyd'),
(2, 'Bottlenecked'),
(3, 'Marek Grzenkowicz'),
(4, 'Giorgi'),
(5, 'AMissico');
This gives you some performance improvements over the 5 separate INSERT
s version; it lets the server do what it's good at: operating on sets:
SQL Sever loves to operate on sets of data; it's where it's a viking!
The above T-SQL examples have all the parameteriztion stuff removed for clarity. But in reality you want to parameterize queries
But Bruno has an important point; SQL Server's driver only lets you include 2,100 parameters in a batch. The above query has two values:
@id, @name
If you import 1,051 rows in a single batch, that's 2,102 parameters - you'll get the error:
Too many parameters were provided in this RPC request
That is why i generally insert 5 or 10 rows at a time. Adding more rows per batch doesn't improve performance that much - there's diminishing returns.
It keeps the number of parameters low, it doesn't get anywhere near the T-SQL batch size limit. There's also the fact that a VALUES
clause is limited to 1000 tuples anyway.
Your first approach is good, but you do have the issues of:
So the goal is to generate a string such as:
INSERT INTO Entries (id, name) VALUES
(@p1, @p2),
(@p3, @p4),
(@p5, @p6),
(@p7, @p8),
(@p9, @p10)
I'll change your code by the seat of my pants
IEnumerable<Entry> entries = GetStuffToInsert();
SqlCommand cmd = new SqlCommand();
StringBuilder sql = new StringBuilder();
Int32 batchSize = 0; //how many rows we have build up so far
Int32 p = 1; //the current paramter name (i.e. "@p1") we're going to use
foreach(var entry in entries)
{
//Build the names of the parameters
String pId = String.Format("@p{0}", p); //the "Id" parameter name (i.e. "p1")
String pName = String.Format("@p{0}", p+1); //the "Name" parameter name (i.e. "p2")
p += 2;
//Build a single "(p1, p2)" row
String row = String.Format("({0}, {1})", pId, pName); //a single values tuple
//Add the row to our running SQL batch
if (batchSize > 0)
sb.AppendLine(",");
sb.Append(row);
batchSize += 1;
//Add the parameter values for this row
cmd.Parameters.Add(pID, System.Data.SqlDbType.Int ).Value = entry.Id;
cmd.Parameters.Add(pName, System.Data.SqlDbType.String).Value = entry.Name;
if (batchSize >= 5)
{
String sql = "INSERT INTO Entries (id, name) VALUES"+"\r\n"+
sb.ToString();
cmd.CommandText = sql;
cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
sb.Clear();
batchSize = 0;
p = 1;
}
}
//handle the last few stragglers
if (batchSize > 0)
{
String sql = "INSERT INTO Entries (id, name) VALUES"+"\r\n"+
sb.ToString();
cmd.CommandText = sql;
cmd.ExecuteNonQuery();
}
The answer for git branch -r --contains <commit>
works well for normal remote branches, but if the commit is only in the hidden head
namespace that GitHub creates for PRs, you'll need a few more steps.
Say, if PR #42 was from deleted branch and that PR thread has the only reference to the commit on the repo, git branch -r
doesn't know about PR #42 because refs like refs/pull/42/head
aren't listed as a remote branch by default.
In .git/config
for the [remote "origin"]
section add a new line:
fetch = +refs/pull/*/head:refs/remotes/origin/pr/*
(This gist has more context.)
Then when you git fetch
you'll get all the PR branches, and when you run git branch -r --contains <commit>
you'll see origin/pr/42
contains the commit.
This Concepts using Kendo Grid
var grid = $("#addNewAllergies").data("kendoGrid");
var selectedItem = SelectedCheckBoxList;
for (var i = 0; i < selectedItem.length; i++) {
if(selectedItem[i].boolKendoValue==true)
{
selectedItem.length= 0;
}
}
Use LocalDate
from java.time, the modern Java date and time API, for a date
DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern("MMMM d, u", Locale.ENGLISH);
LocalDate date = LocalDate.parse("June 27, 2007", dateFormatter);
System.out.println(date);
Output:
2007-06-27
As others have said already, remember to specify an English-speaking locale when your string is in English. A LocalDate
is a date without time of day, so a lot better suitable for the date from your string than the old Date
class. Despite its name a Date
does not represent a date but a point in time that falls on at least two different dates in different time zones of the world.
Only if you need an old-fashioned Date
for an API that you cannot afford to upgrade to java.time just now, convert like this:
Instant startOfDay = date.atStartOfDay(ZoneId.systemDefault()).toInstant();
Date oldfashionedDate = Date.from(startOfDay);
System.out.println(oldfashionedDate);
Output in my time zone:
Wed Jun 27 00:00:00 CEST 2007
Oracle tutorial: Date Time explaining how to use java.time.
Doesn't answer the question directly, but I found this question when searching for a way to, basically, not re-enter the password every single time I pull on a remote server.
Well, git
allows you to cache your credentials for a finite amount of time. It's customizable in git config
and this page explains it very well:
https://help.github.com/articles/caching-your-github-password-in-git/#platform-linux
In a terminal, run:
$ git config --global credential.helper cache
# Set git to use the credential memory cache
To customize the cache timeout, you can do:
$ git config --global credential.helper 'cache --timeout=3600'
# Set the cache to timeout after 1 hour (setting is in seconds)
Your credentials will then be stored in-memory for the requested amount of time.
public void testDB() {
TextView tv = (TextView) this.findViewById(R.id.tv_data);
try {
Class.forName("com.mysql.jdbc.Driver");
// perfect
// localhost
/*
* Connection con = DriverManager .getConnection(
* "jdbc:mysql://192.168.1.5:3306/databasename?user=root&password=123"
* );
*/
// online testing
Connection con = DriverManager
.getConnection("jdbc:mysql://173.5.128.104:3306/vokyak_heyou?user=viowryk_hiweser&password=123");
String result = "Database connection success\n";
Statement st = con.createStatement();
ResultSet rs = st.executeQuery("select * from tablename ");
ResultSetMetaData rsmd = rs.getMetaData();
while (rs.next()) {
result += rsmd.getColumnName(1) + ": " + rs.getString(1) + "\n";
}
tv.setText(result);
} catch (Exception e) {
e.printStackTrace();
tv.setText(e.toString());
}
}
A solution with storyboard and Swift:
Open your .storyboard file, select a TableViewController in your storyboard and "Enable" the Table View Controller: Refreshing feature in the Utilities.
Open the associated UITableViewController
class and add the following Swift 5 line into the viewDidLoad
method.
self.refreshControl?.addTarget(self, action: #selector(refresh), for: UIControl.Event.valueChanged)
Add the following method above the viewDidLoad method
func refresh(sender:AnyObject)
{
// Updating your data here...
self.tableView.reloadData()
self.refreshControl?.endRefreshing()
}
Include in the GROUP BY
clause all SELECT
expressions that are not group function arguments.
As guruz mentioned, the JIT has several lovely graph/tree layouts, including quite appealing RGraph and HyperTree visualizations.
Also, I've just put up a super simple SVG-based implementation at github (no dependencies, ~125 LOC) that should work well enough for small graphs displayed in modern browsers.
As mentioned a couple times before: To switch from LinearLayout to RelativeLayout works, but you can also solve the problem instead of avoiding it. Use the tools a LinearLayout provides: Give the TextView a weight=1 (see code below), the weight for your button should remain 0 or none. In this case the TextView will take all the remaining space, which is not used to display the content of your TextView or ButtonView and pushes your button to the right.
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_marginTop="35dp">
<TextView
android:id="@+id/lblExpenseCancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/cancel"
android:textColor="#404040"
android:layout_marginLeft="10dp"
android:textSize="20sp"
android:layout_marginTop="9dp"
**android:layout_weight="1"**
/>
<Button
android:id="@+id/btnAddExpense"
android:layout_width="wrap_content"
android:layout_height="45dp"
android:background="@drawable/stitch_button"
android:layout_marginLeft="10dp"
android:text="@string/add"
android:layout_gravity="right"
android:layout_marginRight="15dp" />
</LinearLayout>
Based on the warning message, the component ReactTooltip renders an HTML that might look like this:
<p>
<div>...</div>
</p>
According to this document, a <p></p>
tag can only contain inline elements. That means putting a <div></div>
tag inside it should be improper, since the div
tag is a block element. Improper nesting might cause glitches like rendering extra tags, which can affect your javascript and css.
If you want to get rid of this warning, you might want to customize the ReactTooltip component, or wait for the creator to fix this warning.
The RegExp constructor creates a regular expression object for matching text with a pattern.
var pattern1 = ':\\(|:=\\(|:-\\(';
var pattern2 = ':\\(|:=\\(|:-\\(|:\\(|:=\\(|:-\\(';
var regex = new RegExp(pattern1 + '|' + pattern2, 'gi');
str.match(regex);
Above code works perfectly for me...
For me work when i change my php.ini in my host:
; Default timeout for socket based streams (seconds)
default_socket_timeout = 300
Given:
uint n = 3;
int i = checked((int)n); //throws OverflowException if n > Int32.MaxValue
int i = unchecked((int)n); //converts the bits only
//i will be negative if n > Int32.MaxValue
int i = (int)n; //same behavior as unchecked
or
int i = Convert.ToInt32(n); //same behavior as checked
--EDIT
Included info as mentioned by Kenan E. K.
I had to use both:
[[UIBarButtonItem appearanceWhenContainedIn:[UINavigationBar class], nil]
setTitleTextAttributes:[NSDictionary
dictionaryWithObjectsAndKeys:[UIColor whiteColor], UITextAttributeTextColor,nil]
forState:UIControlStateNormal];
[[self.navigationController.navigationBar.subviews lastObject] setTintColor:[UIColor whiteColor]];
And works for me, thank you for everyone!
You have to disable the sandbox for Groovy in your job configuration.
Currently this is not possible for multibranch projects where the groovy script comes from the scm. For more information see https://issues.jenkins-ci.org/browse/JENKINS-28178
JavaScript is a ECMAScript language.
ECMAScript isn't necessarily JavaScript.
If you're using SSMS (or old school Enterprise Manager) to edit the table directly, press CTRL+0 to add a null.
As with most style conventions, there are only two things that matter:
Those may seem to contradict, but they each have value for their own reasons.
Lexeme is basically the unit of a token and it is basically sequence of characters that matches the token and helps to break the source code into tokens.
For example: If the source is x=b
, then the lexemes would be x
, =
, b
and the tokens would be <id, 0>
, <=>
, <id, 1>
.
yum install glibc.i686
install this.
You can use the codecs module, like this:
import codecs
BLOCKSIZE = 1048576 # or some other, desired size in bytes
with codecs.open(sourceFileName, "r", "your-source-encoding") as sourceFile:
with codecs.open(targetFileName, "w", "utf-8") as targetFile:
while True:
contents = sourceFile.read(BLOCKSIZE)
if not contents:
break
targetFile.write(contents)
EDIT: added BLOCKSIZE
parameter to control file chunk size.
Here is a generic way to loop through the field objects in an object (person):
for (var property in person) {
console.log(property,":",person[property]);
}
The person obj looks like this:
var person={
first_name:"johnny",
last_name: "johnson",
phone:"703-3424-1111"
};
I just updated to High Sierra and I couldn't just run xcode-select --install
. First, I had to actually install xcode from the app store. Then I ran xcode-select --install
. Then I had to run sudo xcodebuild -license
, agree to the terms, then I could finally run git commands again.
Encountered the same SSL error while doing a pip install after a fresh anaconda installation. What helped was activating the base environment before doing the pip install.
Do an activate base
from cmd and then run your python script. You can also try 'conda run -n base python script.py'
Reference - https://github.com/conda/conda/issues/8487
If you have access to a console in the context you are investigating, you can determine which version you are running by printing the value of the global constant RUBY_VERSION
.
You can check it by regular expression
public boolean isValid(String strEmail)
{
pattern = Pattern.compile("^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$");
matcher = pattern.matcher(strEmail);
if (strEmail.isEmpty()) {
return false;
} else if (!matcher.matches()) {
return false;
}
else
{
return true;
}
}
Personally, I couldn't use try/except KeyboardInterrupt because I was using standard socket (IPC) mode which is blocking. So the SIGINT was cueued, but came only after receiving data on the socket.
Setting a signal handler behaves the same.
On the other hand, this only works for an actual terminal. Other starting environments might not accept Ctrl+C, or pre-handle the signal.
Also, there are "Exceptions" and "BaseExceptions" in Python, which differ in the sense that interpreter needs to exit cleanly itself, so some exceptions have a higher priority than others (Exceptions is derived from BaseException)
netstat -nlp
should tell you the PID of what's listening on which port.
What is the real difference between one-to-many and many-to-one relationship?
There are conceptual differences between these terms that should help you visualize the data and also possible differences in the generated schema that should be fully understood. Mostly the difference is one of perspective though.
In a one-to-many relationship, the local table has one row that may be associated with many rows in another table. In the example from SQL for beginners, one Customer
may be associated to many Order
s.
In the opposite many-to-one relationship, the local table may have many rows that are associated with one row in another table. In our example, many Order
s may be associated to one Customer
. This conceptual difference is important for mental representation.
In addition, the schema which supports the relationship may be represented differently in the Customer
and Order
tables. For example, if the customer has columns id
and name
:
id,name
1,Bill Smith
2,Jim Kenshaw
Then for a Order
to be associated with a Customer
, many SQL implementations add to the Order
table a column which stores the id
of the associated Customer
(in this schema customer_id
:
id,date,amount,customer_id
10,20160620,12.34,1
11,20160620,7.58,1
12,20160621,158.01,2
In the above data rows, if we look at the customer_id
id column, we see that Bill Smith
(customer-id #1) has 2 orders associated with him: one for $12.34 and one for $7.58. Jim Kenshaw
(customer-id #2) has only 1 order for $158.01.
What is important to realize is that typically the one-to-many relationship doesn't actually add any columns to the table that is the "one". The Customer
has no extra columns which describe the relationship with Order
. In fact the Customer
might also have a one-to-many relationship with ShippingAddress
and SalesCall
tables and yet have no additional columns added to the Customer
table.
However, for a many-to-one relationship to be described, often an id
column is added to the "many" table which is a foreign-key to the "one" table -- in this case a customer_id
column is added to the Order
. To associated order #10 for $12.34 to Bill Smith
, we assign the customer_id
column to Bill Smith
's id 1.
However, it is also possible for there to be another table that describes the Customer
and Order
relationship, so that no additional fields need to be added to the Order
table. Instead of adding a customer_id
field to the Order
table, there could be Customer_Order
table that contains keys for both the Customer
and Order
.
customer_id,order_id
1,10
1,11
2,12
In this case, the one-to-many and many-to-one is all conceptual since there are no schema changes between them. Which mechanism depends on your schema and SQL implementation.
Hope this helps.
It looks like you forgot to include the ngRoute module in your dependency for myApp.
In Angular 1.2, they've made ngRoute optional (so you can use third-party route providers, etc.) and you have to explicitly depend on it in modules, along with including the separate file.
'use strict';
angular.module('myApp', ['ngRoute']).
config(['$routeProvider', function($routeProvider) {
$routeProvider.otherwise({redirectTo: '/home'});
}]);
.html always for new files. .htm is a throwback to dos days.
Here's how to do it using default ACLs, at least under Linux.
First, you might need to enable ACL support on your filesystem. If you are using ext4 then it is already enabled. Other filesystems (e.g., ext3) need to be mounted with the acl
option. In that case, add the option to your /etc/fstab
. For example, if the directory is located on your root filesystem:
/dev/mapper/qz-root / ext3 errors=remount-ro,acl 0 1
Then remount it:
mount -oremount /
Now, use the following command to set the default ACL:
setfacl -dm u::rwx,g::rwx,o::r /shared/directory
All new files in /shared/directory
should now get the desired permissions. Of course, it also depends on the application creating the file. For example, most files won't be executable by anyone from the start (depending on the mode argument to the open(2) or creat(2) call), just like when using umask. Some utilities like cp
, tar
, and rsync
will try to preserve the permissions of the source file(s) which will mask out your default ACL if the source file was not group-writable.
Hope this helps!
For those who can't use a .dockerignore file (e.g. if you need the file in one COPY but not another):
Yes, but you need multiple COPY instructions. Specifically, you need a COPY for each letter in the filename you wish to exclude.
COPY [^n]* # All files that don't start with 'n'
COPY n[^o]* # All files that start with 'n', but not 'no'
COPY no[^d]* # All files that start with 'no', but not 'nod'
Continuing until you have the full file name, or just the prefix you're reasonably sure won't have any other files.
Was able to solve this problem in my asp.net mvc project by updating my version of Newton.Json (old Version = 9.0.0.0 to new Version 11.0.0.0) usign Package Manager.
The char already has an IsDigit(char c) which does this:
public static bool IsDigit(char c)
{
if (!char.IsLatin1(c))
return CharUnicodeInfo.GetUnicodeCategory(c) == UnicodeCategory.DecimalDigitNumber;
if ((int) c >= 48)
return (int) c <= 57;
else
return false;
}
You can simply do this:
var theString = "839278";
bool digitsOnly = theString.All(char.IsDigit);
If you have msysgit installed, the path would look like c:\Program Files (x86)\Git\bin\git.exe
on a 64-bit system, otherwise just download and install it, PyCharm doesn't come with Git client.
The exception is telling that a Bundle_en_US.properties
, or Bundle_en.properties
, or at least Bundle.properties
file is expected in the root of the classpath, but there is actually none.
Make sure that at least one of the mentioned files is present in the root of the classpath. Or, make sure that you provide the proper bundle name. For example, if the bundle files are actually been placed in the package com.example.i18n
, then you need to pass com.example.i18n.Bundle
as bundle name instead of Bundle
.
In case you're using Eclipse "Dynamic Web Project", the classpath root is represented by src
folder, there where all your Java packages are. In case you're using a Maven project, the classpath root for resource files is represented by src/main/resources
folder.
This an old question but for people still looking. In JS you can now use the title
property.
button.title = ("Popup text here");
I would pick the if statement for the sake of clarity and convention, although I'm sure that some would disagree. After all, you are wanting to do something if
some condition is true! Having a switch with one action seems a little... unneccesary.
If the first segment doesn't start with /
it is a relative route. router.navigate
needs a relativeTo
parameter for relative navigation
Either you make the route absolute:
this.router.navigate(['/foo-content', 'bar-contents', 'baz-content', 'page'], this.params.queryParams)
or you pass relativeTo
this.router.navigate(['../foo-content', 'bar-contents', 'baz-content', 'page'], {queryParams: this.params.queryParams, relativeTo: this.currentActivatedRoute})
See also
For unique columns per index:
select s.name, t.name, i.name, i.index_id,c.name,c.column_id
from sys.schemas s
inner join sys.tables t on t.schema_id = s.schema_id
inner join sys.indexes i on i.object_id = t.object_id
inner join sys.index_columns ic on ic.object_id = t.object_id
and ic.index_id=i.index_id
inner join sys.columns c on c.object_id = t.object_id
and ic.column_id = c.column_id
where i.object_id = object_id('previous.account_1')
order by index_id,column_id
On Fedora 28, just pay attention to the line
security.useSystemPropertiesFile=true
of the java.security
file, found at:
$(dirname $(readlink -f $(which java)))/../lib/security/java.security
Fedora 28 introduced external file of disabledAlgorithms control at
/etc/crypto-policies/back-ends/java.config
You can edit this external file or you can exclude it from java.security
by setting
security.useSystemPropertiesFile=false
Automatically floating two columns next to eachother is not currently possible only with CSS/HTML. Two ways to achieve this:
Float all paragraphs to the left, give them half the width of the containing element and if possible set a fixed height.
<div id="container">
<p>This is paragraph 1. Lorem ipsum ... </p>
<p>This is paragraph 2. Lorem ipsum ... </p>
<p>This is paragraph 3. Lorem ipsum ... </p>
<p>This is paragraph 4. Lorem ipsum ... </p>
<p>This is paragraph 5. Lorem ipsum ... </p>
<p>This is paragraph 6. Lorem ipsum ... </p>
</div>
#container { width: 600px; }
#container p { float: left; width: 300px; /* possibly also height: 300px; */ }
You can also insert clearer-divs between paragraphs to avoid having to use a fixed height. If you want two columns, add a clearer-div between two-and-two paragraphs. This will align the top of the two next paragraphs, making it look more tidy. Example:
<div id="container">
<p>This is paragraph 1. Lorem ipsum ... </p>
<p>This is paragraph 2. Lorem ipsum ... </p>
<div class="clear"></div>
<p>This is paragraph 3. Lorem ipsum ... </p>
<p>This is paragraph 4. Lorem ipsum ... </p>
<div class="clear"></div>
<p>This is paragraph 5. Lorem ipsum ... </p>
<p>This is paragraph 6. Lorem ipsum ... </p>
</div>
/* in addition to the above CSS */
.clear { clear: both; height: 0; }
More advanced, but it can be done.
<div id="container">
<div class="contentColumn">
<p>This is paragraph 1. Lorem ipsum ... </p>
<p>This is paragraph 2. Lorem ipsum ... </p>
<p>This is paragraph 3. Lorem ipsum ... </p>
</div>
<div class="contentColumn">
<p>This is paragraph 4. Lorem ipsum ... </p>
<p>This is paragraph 5. Lorem ipsum ... </p>
<p>This is paragraph 6. Lorem ipsum ... </p>
</div>
</div>
.contentColumn { width: 300px; float: left; }
#container { width: 600px; }
When it comes to the ease of use: none of these are really easy for a non-technical client. You might attempt to explain to him/her how to do this properly, and tell him/her why. Learning very basic HTML is not a bad idea anyways, if the client is going to be updating the web pages via a WYSIWYG-editor in the future.
Or you could try to implement some Javascript-solution that counts the total number of paragraphs, splits them in two and creates columns. This will also degrade gracefully for those who have JavaScript disabled. A third option is to have all this splitting-into-columns-action happen serverside if this is an option.
You might read about the CSS3 way of doing it, but it's not really practical for a production website. Not yet, at least.
Dim
and Private
work the same, though the common convention is to use Private
at the module level, and Dim
at the Sub/Function level. Public
and Global
are nearly identical in their function, however Global
can only be used in standard modules, whereas Public
can be used in all contexts (modules, classes, controls, forms etc.) Global
comes from older versions of VB and was likely kept for backwards compatibility, but has been wholly superseded by Public
.
For a single keyword on VARCHAR fields you can use LIKE
:
SELECT id, category, location
FROM table
WHERE
(
category LIKE '%keyword%'
OR location LIKE '%keyword%'
)
For a description you're usually better adding a full text index and doing a Full-Text Search (MyISAM only):
SELECT id, description
FROM table
WHERE MATCH (description) AGAINST('keyword1 keyword2')
I have finally found a working code - try this:
document.getElementById("button").style.background='#000000';
I've got the same error. I have been trying to fixing this by setting higher permission to account running SQL Client service, however it didnt help. The problem was that I run MS Sql Management studio just within my account. So, next time... assure that you are running it as Run as Administrator, if using Win7 with UAC enabled.
This one works for me:
function removeDirectory($path) {
$files = glob($path . '/*');
foreach ($files as $file) {
is_dir($file) ? removeDirectory($file) : unlink($file);
}
rmdir($path);
return;
}
There are two ways for writing a proper media queries in css. If you are writing media queries for larger device first, then the correct way of writing will be:
@media only screen
and (min-width : 415px){
/* Styles */
}
@media only screen
and (min-width : 769px){
/* Styles */
}
@media only screen
and (min-width : 992px){
/* Styles */
}
But if you are writing media queries for smaller device first, then it would be something like:
@media only screen
and (max-width : 991px){
/* Styles */
}
@media only screen
and (max-width : 768px){
/* Styles */
}
@media only screen
and (max-width : 414px){
/* Styles */
}
yes,Just reinstall numpy,it works.
I usually use padding to resolve this issue. The padding will be added when border disappears and removed when border appears. Sample code:
.good-border {
padding: 1px;
}
.good-border:hover {
padding: 0px;
border: 1px solid blue;
}
View my full sample code on JSFiddle: https://jsfiddle.net/3t7vyebt/4/
class ViewController: UIViewController {
//timePicker
@IBOutlet weak var lblTime: UILabel!
@IBOutlet weak var timePicker: UIDatePicker!
@IBOutlet weak var cancelTime_Btn: UIBarButtonItem!
@IBOutlet weak var donetime_Btn: UIBarButtonItem!
@IBOutlet weak var toolBar: UIToolbar!
//Date picker
// @IBOutlet weak var datePicker: UIDatePicker!
override func viewDidLoad() {
super.viewDidLoad()
ishidden(bool: true)
let dateFormatter2 = DateFormatter()
dateFormatter2.dateFormat = "HH:mm a" //"hh:mm a"
lblTime.text = dateFormatter2.string(from: timePicker.date)
}
@IBAction func selectTime_Action(_ sender: Any) {
timePicker.datePickerMode = .time
ishidden(bool: false)
}
@IBAction func timeCancel_Action(_ sender: Any) {
ishidden(bool: true)
}
@IBAction func timeDoneBtn(_ sender: Any) {
let dateFormatter1 = DateFormatter()
dateFormatter1.dateFormat = "HH:mm a"//"hh:mm"
let str = dateFormatter1.string(from: timePicker.date)
lblTime.text = str
ishidden(bool: true)
}
func ishidden(bool:Bool){
timePicker.isHidden = bool
toolBar.isHidden = bool
}
}
As stated in PostgreSQL docs here:
The SQL CASE expression is a generic conditional expression, similar to if/else statements in other programming languages.
Code snippet specifically answering your question:
SELECT field1, field2,
CASE
WHEN field1>0 THEN field2/field1
ELSE 0
END
AS field3
FROM test
As others have mentioned the underlying dict is unordered. However there are OrderedDict objects in python. ( They're built in in recent pythons, or you can use this: http://code.activestate.com/recipes/576693/ ).
I believe that newer pythons json implementations correctly handle the built in OrderedDicts, but I'm not sure (and I don't have easy access to test).
Old pythons simplejson implementations dont handle the OrderedDict objects nicely .. and convert them to regular dicts before outputting them.. but you can overcome this by doing the following:
class OrderedJsonEncoder( simplejson.JSONEncoder ):
def encode(self,o):
if isinstance(o,OrderedDict.OrderedDict):
return "{" + ",".join( [ self.encode(k)+":"+self.encode(v) for (k,v) in o.iteritems() ] ) + "}"
else:
return simplejson.JSONEncoder.encode(self, o)
now using this we get:
>>> import OrderedDict
>>> unordered={"id":123,"name":"a_name","timezone":"tz"}
>>> ordered = OrderedDict.OrderedDict( [("id",123), ("name","a_name"), ("timezone","tz")] )
>>> e = OrderedJsonEncoder()
>>> print e.encode( unordered )
{"timezone": "tz", "id": 123, "name": "a_name"}
>>> print e.encode( ordered )
{"id":123,"name":"a_name","timezone":"tz"}
Which is pretty much as desired.
Another alternative would be to specialise the encoder to directly use your row class, and then you'd not need any intermediate dict or UnorderedDict.
Add id's to both inputs, id="first" and id="second"
//trigger second button $("#second").click()
For those of us using non-ISO standard date formats, like civilian vernacular 01/01/2001 (mm/dd/YYYY), including time in a 12hour date format with am/pm marks, the following function will return a valid Date object:
function convertDate(date) {
// # valid js Date and time object format (YYYY-MM-DDTHH:MM:SS)
var dateTimeParts = date.split(' ');
// # this assumes time format has NO SPACE between time and am/pm marks.
if (dateTimeParts[1].indexOf(' ') == -1 && dateTimeParts[2] === undefined) {
var theTime = dateTimeParts[1];
// # strip out all except numbers and colon
var ampm = theTime.replace(/[0-9:]/g, '');
// # strip out all except letters (for AM/PM)
var time = theTime.replace(/[[^a-zA-Z]/g, '');
if (ampm == 'pm') {
time = time.split(':');
// # if time is 12:00, don't add 12
if (time[0] == 12) {
time = parseInt(time[0]) + ':' + time[1] + ':00';
} else {
time = parseInt(time[0]) + 12 + ':' + time[1] + ':00';
}
} else { // if AM
time = time.split(':');
// # if AM is less than 10 o'clock, add leading zero
if (time[0] < 10) {
time = '0' + time[0] + ':' + time[1] + ':00';
} else {
time = time[0] + ':' + time[1] + ':00';
}
}
}
// # create a new date object from only the date part
var dateObj = new Date(dateTimeParts[0]);
// # add leading zero to date of the month if less than 10
var dayOfMonth = (dateObj.getDate() < 10 ? ("0" + dateObj.getDate()) : dateObj.getDate());
// # parse each date object part and put all parts together
var yearMoDay = dateObj.getFullYear() + '-' + (dateObj.getMonth() + 1) + '-' + dayOfMonth;
// # finally combine re-formatted date and re-formatted time!
var date = new Date(yearMoDay + 'T' + time);
return date;
}
Usage:
date = convertDate('11/15/2016 2:00pm');
you can add
<fieldset class="fieldset">
and then you can call
$('.fieldset').prop('disabled', true);
There is also
getfacl /directory/directory/
which includes ACL
A good introduction on Linux ACL here
If you're dealing with Data Validation lists, you can use the Worksheet_Change event. Right click on the sheet with the data validation and choose View Code. Then type in this:
Private Sub Worksheet_Change(ByVal Target As Range)
MsgBox Target.Value
End Sub
If you're dealing with ActiveX comboboxes, it's a little more complicated. You need to create a custom class module to hook up the events. First, create a class module named CComboEvent and put this code in it.
Public WithEvents Cbx As MSForms.ComboBox
Private Sub Cbx_Change()
MsgBox Cbx.Value
End Sub
Next, create another class module named CComboEvents. This will hold all of our CComboEvent instances and keep them in scope. Put this code in CComboEvents.
Private mcolComboEvents As Collection
Private Sub Class_Initialize()
Set mcolComboEvents = New Collection
End Sub
Private Sub Class_Terminate()
Set mcolComboEvents = Nothing
End Sub
Public Sub Add(clsComboEvent As CComboEvent)
mcolComboEvents.Add clsComboEvent, clsComboEvent.Cbx.Name
End Sub
Finally, create a standard module (not a class module). You'll need code to put all of your comboboxes into the class modules. You might put this in an Auto_Open procedure so it happens whenever the workbook is opened, but that's up to you.
You'll need a Public variable to hold an instance of CComboEvents. Making it Public will kepp it, and all of its children, in scope. You need them in scope so that the events are triggered. In the procedure, loop through all of the comboboxes, creating a new CComboEvent instance for each one, and adding that to CComboEvents.
Public gclsComboEvents As CComboEvents
Public Sub AddCombox()
Dim oleo As OLEObject
Dim clsComboEvent As CComboEvent
Set gclsComboEvents = New CComboEvents
For Each oleo In Sheet1.OLEObjects
If TypeName(oleo.Object) = "ComboBox" Then
Set clsComboEvent = New CComboEvent
Set clsComboEvent.Cbx = oleo.Object
gclsComboEvents.Add clsComboEvent
End If
Next oleo
End Sub
Now, whenever a combobox is changed, the event will fire and, in this example, a message box will show.
You can see an example at https://www.dropbox.com/s/sfj4kyzolfy03qe/ComboboxEvents.xlsm
One way is to use a script tag to import the variables you want to your views:
<script type="text/javascript">
window.base_url = <?php echo json_encode(base_url()); ?>;
</script>
Here, I wrapped the base_url with json_encode so that it'll automatically escape any characters to valid Javascript. I put base_url to the global Window so you can use it anywhere just by calling base_url, but make sure to put the script tag above any Javascript that calls it. With your given example:
...
$('#style_color').attr("href", base_url + "assets/css/themes/" + color_ + ".css");
Let me preface this by saying I'm talking primarily about method access here, and to a slightly lesser extent, marking classes final, not member access.
The old wisdom
"mark it private unless you have a good reason not to"
made sense in days when it was written, before open source dominated the developer library space and VCS/dependency mgmt. became hyper collaborative thanks to Github, Maven, etc. Back then there was also money to be made by constraining the way(s) in which a library could be utilized. I spent probably the first 8 or 9 years of my career strictly adhering to this "best practice".
Today, I believe it to be bad advice. Sometimes there's a reasonable argument to mark a method private, or a class final but it's exceedingly rare, and even then it's probably not improving anything.
Have you ever:
These are the three biggest rationalizations I've heard for marking methods private by default:
I can't count the number of times I've been wrong about whether or not there will ever be a need to override a specific method I've written. Having worked on several popular open source libs, I learned the hard way the true cost of marking things private. It often eliminates the only practical solution to unforseen problems or use cases. Conversely, I've never in 16+ years of professional development regretted marking a method protected instead of private for reasons related to API safety. When a developer chooses to extend a class and override a method, they are consciously saying "I know what I'm doing." and for the sake of productivity that should be enough. period. If it's dangerous, note it in the class/method Javadocs, don't just blindly slam the door shut.
Marking methods protected by default is a mitigation for one of the major issues in modern SW development: failure of imagination.
This one is more reasonable, and depending on the target audience it might even be the right thing to do, but it's worth considering what the cost of keeping the API "clean" actually is: extensibility. For the reasons mentioned above, it probably makes more sense to mark things protected by default just in case.
This is reasonable too, but as a consumer I'd go with the less restrictive competitor (assuming no significant quality differences exist) every time.
I'm not saying never mark methods private. I'm saying the better rule of thumb is to "make methods protected unless there's a good reason not to".
This advice is best suited for those working on libraries or larger scale projects that have been broken into modules. For smaller or more monolithic projects it doesn't tend to matter as much since you control all the code anyway and it's easy to change the access level of your code if/when you need it. Even then though, I'd still give the same advice :-)
Had the same problem. I apparently wrote the Main wrong:
public static void main(String[] args){
I missed the []
and that was the whole problem.
Check and recheck the Main function!
Think of it this way.
Anything that you type after localhost/
is the path inside the root directory of your server(www or htdocs).
You don't need to specify the complete path of the file you want to run but just the path after the root folder because putting localhost/
takes you inside the root folder itself.
Also possible by looking for substring with index() function:
awk '(index($3, "snow") != 0) {print}' dummy_file
Shorter version:
awk 'index($3, "snow")' dummy_file
Here is an example to call your webservice using jQuery.get:
$.get("http://domain.com/webservice.asmx", { name: "John", time: "2pm" },
function(data){
alert("Data Loaded: " + data);
});
In the example above, we call "webservice.asmx", passing two parameters: name and time. Then, getting the service output in the call back function.
Gets the time to wait while trying to establish a connection before terminating the attempt and generating an error.
Better documentation is now available and you can use both JSON and JavaScript based configurations: angular-cli documentation proxy
sample https proxy configuration
{
"/angular": {
"target": {
"host": "github.com",
"protocol": "https:",
"port": 443
},
"secure": false,
"changeOrigin": true,
"logLevel": "info"
}
}
To my knowledge with Angular 2.0 release setting up proxies using .ember-cli file is not recommended. official way is like below
edit "start"
of your package.json
to look below
"start": "ng serve --proxy-config proxy.conf.json",
create a new file called proxy.conf.json
in the root of the project and inside of that define your proxies like below
{
"/api": {
"target": "http://api.yourdomai.com",
"secure": false
}
}
Important thing is that you use npm start
instead of ng serve
Read more from here : Proxy Setup Angular 2 cli
On Fedora, this works:
yum install lapack lapack-devel blas blas-devel
pip install numpy
pip install scipy
Remember to install 'lapack-devel' and 'blas-devel' in addition to 'blas' and 'lapack' otherwise you'll get the error you mentioned or the "numpy.distutils.system_info.LapackNotFoundError" error.
TL;DR. You can get around this by expressing your queries as MyModel::query()->find(10);
instead of MyModel::find(10);
.
To the best of my knowledge, starting PhpStorm 2017.2 code inspection fails for methods such as MyModel::where()
, MyModel::find()
, etc (check this thread). This could get quite annoying, when you try let's say to use PhpStorm's Git integration before committing your code, PhpStorm won't stop complaining about these static method call warnings.
One elegant way (IMOO) to get around this is to explicitly call ::query()
wherever it makes sense to. This will let you benefit from a free auto-completion and a nice query formatting.
$myModel = MyModel::find(10); // static call complaint
// another poorly formatted query with code inspection complaints
$myFilteredModels = MyModel::where('is_beautiful', true)
->where('is_not_smart', false)
->get();
$myModel = MyModel::query()->find(10);
// a nicely formatted query with no complaints
$myFilteredModels = MyModel::query()
->where('is_beautiful', true)
->where('is_not_smart', false)
->get();
From PEP 249:
Question:
How can I construct a dictionary out of the tuples returned by
.fetch*():
Answer:
There are several existing tools available which provide
helpers for this task. Most of them use the approach of using
the column names defined in the cursor attribute .description
as basis for the keys in the row dictionary.
Note that the reason for not extending the DB API specification
to also support dictionary return values for the .fetch*()
methods is that this approach has several drawbacks:
* Some databases don't support case-sensitive column names or
auto-convert them to all lowercase or all uppercase
characters.
* Columns in the result set which are generated by the query
(e.g. using SQL functions) don't map to table column names
and databases usually generate names for these columns in a
very database specific way.
As a result, accessing the columns through dictionary keys
varies between databases and makes writing portable code
impossible.
So yes, do it yourself.
You can either use:
<button onclick="window.history.back()">Back</button>
or..
<button onclick="window.history.go(-1)">Back</button>
The difference, of course, is back()
only goes back 1 page but go()
goes back/forward the number of pages you pass as a parameter, relative to your current page.
One (quick & dirty) way to resize images it to use HTML & specify the new size in the image element. This even works for animated images with transparency.
PHP 7.2 Ubuntu 18.04
sudo apt install php-mbstring
I had to face this problem, too. Unfortunately, none of the answers (here and in dozens of other pages) has been satisfactory to me, as I still cannot reach dates beyond the year 2038 due to 32 bit integer casts somewhere.
A solution that did work for me in the end was to use float
variables, so I could have at least a max date of 2262-04-11T23:47:16.854775849
. Still, this doesn't cover the entire datetime
domain, but it is sufficient for my needs and may help others encountering the same problem.
-- date variables
declare @ts bigint; -- 64 bit time stamp, 100ns precision
declare @d datetime2(7) = GETUTCDATE(); -- 'now'
-- select @d = '2262-04-11T23:47:16.854775849'; -- this would be the max date
-- constants:
declare @epoch datetime2(7) = cast('1970-01-01T00:00:00' as datetime2(7));
declare @epochdiff int = 25567; -- = days between 1900-01-01 and 1970-01-01
declare @ticksofday bigint = 864000000000; -- = (24*60*60*1000*1000*10)
-- helper variables:
declare @datepart float;
declare @timepart float;
declare @restored datetime2(7);
-- algorithm:
select @ts = DATEDIFF_BIG(NANOSECOND, @epoch, @d) / 100; -- 'now' in ticks according to unix epoch
select @timepart = (@ts % @ticksofday) / @ticksofday; -- extract time part and scale it to fractional part (i. e. 1 hour is 1/24th of a day)
select @datepart = (@ts - @timepart) / @ticksofday; -- extract date part and scale it to fractional part
select @restored = cast(@epochdiff + @datepart + @timepart as datetime); -- rebuild parts to a datetime value
-- query original datetime, intermediate timestamp and restored datetime for comparison
select
@d original,
@ts unix64,
@restored restored
;
-- example result for max date:
-- +-----------------------------+-------------------+-----------------------------+
-- | original | unix64 | restored |
-- +-----------------------------+-------------------+-----------------------------+
-- | 2262-04-11 23:47:16.8547758 | 92233720368547758 | 2262-04-11 23:47:16.8533333 |
-- +-----------------------------+-------------------+-----------------------------+
There are some points to consider:
@ticksofday
and the first line of the algorithm accordingly.1900-01-01
is the origin date for datetime2
, just as is the epoch 1970-01-01
for unix timestamps.float
s helped me to solve the year-2038-problem and integer overflows and such, but keep in mind that floating point numbers are not very performant and may slow down processing of a big amount of timestamps. Also, floats may lead to loss of precision due to roundoff errors, as you can see in the comparison of the example results for the max date above (here, the error is about 1.4425ms).datetime
. Unfortunately, there is no explicit cast from numeric values to datetime2
allowed, but it is allowed to cast numerics to datetime
explicitly and this, in turn, is cast implicitly to datetime2
. This may be correct, for now, but may change in future versions of SQL Server: Either there will be a dateadd_big()
function or the explicit cast to datetime2
will be allowed or the explicit cast to datetime
will be disallowed, so this may either break or there may come an easier way some day.The whole code if somebody need it.
void alarm(Context context, Calendar calendar) {
AlarmManager alarmManager = (AlarmManager)context.getSystemService(ALARM_SERVICE);
final String SOME_ACTION = "com.android.mytabs.MytabsActivity.AlarmReceiver";
IntentFilter intentFilter = new IntentFilter(SOME_ACTION);
AlarmReceiver mReceiver = new AlarmReceiver();
context.registerReceiver(mReceiver, intentFilter);
Intent anotherIntent = new Intent(SOME_ACTION);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, anotherIntent, 0);
alramManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
Toast.makeText(context, "Added", Toast.LENGTH_LONG).show();
}
class AlarmReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent arg1) {
Toast.makeText(context, "Started", Toast.LENGTH_LONG).show();
}
}
Find out Year - Month- Day between two Days in Orale Sql
select
trunc(trunc(months_between(To_date('20120101', 'YYYYMMDD'),to_date('19910228','YYYYMMDD')))/12) years ,
trunc(months_between(To_date('20120101', 'YYYYMMDD'),to_date('19910228','YYYYMMDD')))
-
(trunc(trunc(months_between(To_date('20120101', 'YYYYMMDD'),to_date('19910228','YYYYMMDD')))/12))*12
months,
round(To_date('20120101', 'YYYYMMDD')-add_months(to_date('19910228','YYYYMMDD'),
trunc(months_between(To_date('20120101', 'YYYYMMDD'),to_date('19910228','YYYYMMDD'))))) days
from dual;
In Android Studio, open AVD Manager (Tools > Android > AVD Manager).
Tap the Edit button of the emulator:
Select "Show Advanced Settings"
Check "Enable keyboard input"
Click Finish and start the emulator to enjoy the keyboard input.
EMPNO DEPTNO DEPT_COUNT
7839 10 4
5555 10 4
7934 10 4
7782 10 4 --- 4 records in table for dept 10
7902 20 4
7566 20 4
7876 20 4
7369 20 4 --- 4 records in table for dept 20
7900 30 6
7844 30 6
7654 30 6
7521 30 6
7499 30 6
7698 30 6 --- 6 records in table for dept 30
Here we are getting count for respective deptno. As for deptno 10 we have 4 records in table emp similar results for deptno 20 and 30 also.
SELECT last_number
FROM all_sequences
WHERE sequence_owner = '<sequence owner>'
AND sequence_name = '<sequence_name>';
You can get a variety of sequence metadata from user_sequences
, all_sequences
and dba_sequences
.
These views work across sessions.
EDIT:
If the sequence is in your default schema then:
SELECT last_number
FROM user_sequences
WHERE sequence_name = '<sequence_name>';
If you want all the metadata then:
SELECT *
FROM user_sequences
WHERE sequence_name = '<sequence_name>';
Hope it helps...
EDIT2:
A long winded way of doing it more reliably if your cache size is not 1 would be:
SELECT increment_by I
FROM user_sequences
WHERE sequence_name = 'SEQ';
I
-------
1
SELECT seq.nextval S
FROM dual;
S
-------
1234
-- Set the sequence to decrement by
-- the same as its original increment
ALTER SEQUENCE seq
INCREMENT BY -1;
Sequence altered.
SELECT seq.nextval S
FROM dual;
S
-------
1233
-- Reset the sequence to its original increment
ALTER SEQUENCE seq
INCREMENT BY 1;
Sequence altered.
Just beware that if others are using the sequence during this time - they (or you) may get
ORA-08004: sequence SEQ.NEXTVAL goes below the sequences MINVALUE and cannot be instantiated
Also, you might want to set the cache to NOCACHE
prior to the resetting and then back to its original value afterwards to make sure you've not cached a lot of values.
Just use window.open()
function? The third parameter lets you specify window size.
var strWindowFeatures = "location=yes,height=570,width=520,scrollbars=yes,status=yes";
var URL = "https://www.linkedin.com/cws/share?mini=true&url=" + location.href;
var win = window.open(URL, "_blank", strWindowFeatures);
Just type this command in your command line:
python manage.py changepassword yourusername
try this:
download firefox, add the plugin "firebug" and "firepath"; after install them go to your webpage, start firebug and find the xpath of the element, it unique in the page so you can't make any mistake.
browser.find_element_by_xpath('just copy and paste the Xpath').click()
IEEE 754 floating point is done in binary. There's no exact conversion from a given number of bits to a given number of decimal digits. 3 bits can hold values from 0 to 7, and 4 bits can hold values from 0 to 15. A value from 0 to 9 takes roughly 3.5 bits, but that's not exact either.
An IEEE 754 double precision number occupies 64 bits. Of this, 52 bits are dedicated to the significand (the rest is a sign bit and exponent). Since the significand is (usually) normalized, there's an implied 53rd bit.
Now, given 53 bits and roughly 3.5 bits per digit, simple division gives us 15.1429 digits of precision. But remember, that 3.5 bits per decimal digit is only an approximation, not a perfectly accurate answer.
Many (most?) debuggers actually look at the contents of the entire register. On an x86, that's actually an 80-bit number. The x86 floating point unit will normally be adjusted to carry out calculations to 64-bit precision -- but internally, it actually uses a couple of "guard bits", which basically means internally it does the calculation with a few extra bits of precision so it can round the last one correctly. When the debugger looks at the whole register, it'll usually find at least one extra digit that's reasonably accurate -- though since that digit won't have any guard bits, it may not be rounded correctly.
I had the same error.
My filename was jpaContext.xml
and it was placed in src/main/resources
. I specified param value="classpath:/jpaContext.xml"
.
Finally I renamed the file to applicationContext.xml
and moved it to the WEB-INF directory and changed param value to /WEB-INF/applicationContext.xml
, then it worked!
Subscribing to the IUS Community Project Repository
cd ~
curl 'https://setup.ius.io/' -o setup-ius.sh
Run the script:
sudo bash setup-ius.sh
Upgrading mod_php with Apache
This section describes the upgrade process for a system using Apache as the web server and mod_php to execute PHP code. If, instead, you are running Nginx and PHP-FPM, skip ahead to the next section.
Begin by removing existing PHP packages. Press y and hit Enter to continue when prompted.
sudo yum remove php-cli mod_php php-common
Install the new PHP 7 packages from IUS. Again, press y and Enter when prompted.
sudo yum install mod_php70u php70u-cli php70u-mysqlnd
Finally, restart Apache to load the new version of mod_php:
sudo apachectl restart
You can check on the status of Apache, which is managed by the httpd systemd unit, using systemctl:
systemctl status httpd
I fixed it with the following steps:
netsh http show urlacl
and see if your application http address/port is listed.netsh http delete urlacl url=[ADDRESS]
replacing [ADDRESS]
with the Reserved URL shown by the previous command. For example http://+:17560/
If you are using javac
to compile, and you get this error, then
remove all the .class
files
rm *.class # On Unix-based systems
and recompile.
javac fileName.java
Try to use this :
private void button1_Click(object sender, EventArgs e)
{
for (int i = 0; i < chBoxListTables.Items.Count; i++)
if (chBoxListTables.GetItemCheckState(i) == CheckState.Checked)
{
txtBx.text += chBoxListTables.Items[i].ToString() + " \n";
}
}
Faced this issue of removing the labels in Chartjs now. Looks like the documentation is improved. http://www.chartjs.org/docs/#getting-started-global-chart-configuration
Chart.defaults.global.legend.display = false;
this global settings prevents legends from being shown in all Charts. Since this was enough for me, I used it. I am not sure to how to avoid legends for individual charts.
When the user starts making changes to the form, a boolean flag will be set. If the user then tries to navigate away from the page, you check that flag in the window.onunload event. If the flag is set, you show the message by returning it as a string. Returning the message as a string will popup a confirmation dialog containing your message.
If you are using ajax to commit the changes, you can set the flag to false
after the changes have been committed (i.e. in the ajax success event).
If you don't have the source code and API documentation, the machine code is all there is, you need to disassemble the dll library using something like IDA Pro , another option is use the trial version of PE Explorer.
PE Explorer provides a Disassembler. There is only one way to figure out the parameters: run the disassembler and read the disassembly output. Unfortunately, this task of reverse engineering the interface cannot be automated.
PE Explorer comes bundled with descriptions for 39 various libraries, including the core Windows® operating system libraries (eg. KERNEL32, GDI32, USER32, SHELL32, WSOCK32), key graphics libraries (DDRAW, OPENGL32) and more.
(source: heaventools.com)
Create a toolbar in your xml...toolbar.xml:
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
</android.support.v7.widget.Toolbar>
Then add the following in your toolbar.xml:
app:titleTextColor="@color/colorText"
app:title="@string/app_name">
Remeber @color/colorText is simply your color.xml file with the color attribute named colorText and your color.This is the best way to calll your strings rather than hardcoding your color inside your toolbar.xml. You also have other options to modify your text,such as:textAppearance...etc...just type app:text...and intelisense will give you options in android studio.
your final toolbar should look like this:
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_weight="1"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="@style/Theme.AppCompat"
app:subtitleTextAppearance="@drawable/icon"
app:title="@string/app_name">
</android.support.v7.widget.Toolbar>
NB:This toolbar should be inside your activity_main.xml.Easy Peasie
Another option is to do it all in your class:
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
toolbar.setTitleTextColor(Color.WHITE);
Good Luck
It seems that Luiggi Mendoza
and joey rohan
both already answered this, but I think it can be clarified a little.
You can write it as a single if
statement:
if (inventory.contains("bread") && !inventory.contains("water")) {
// do something
}
The pid files contains the process id (a number) of a given program. For example, Apache HTTPD may write its main process number to a pid file - which is a regular text file, nothing more than that - and later use the information there contained to stop itself. You can also use that information to kill the process yourself, using cat filename.pid | xargs kill
The best way to fix your problem, is to replace $(this).attr("tag")
with either this.nodeName.toLowerCase()
or this.tagName.toLowerCase()
.
Both produce the exact same result!
Probably something like:
ArrayList<DataPoint> myList = new ArrayList<DataPoint>();
//Fill up myList with your Data Points
//Traversal
for(DataPoint myPoint : myList) {
if(myPoint.getName() != null && myPoint.getName().equals("Michael Hoffmann")) {
//Process data do whatever you want
System.out.println("Found it!");
}
}
Try this:
$("div[class]").filter(function() {
var classNames = this.className.split(/\s+/);
for (var i=0; i<classNames.length; ++i) {
if (classNames[i].substr(0, 6) === "apple-") {
return true;
}
}
return false;
})
I have used the below package for a meteor/MongoDB project, and it works well, the main advantage is that it stores history/revisions within an array in the same document, hence no need for an additional publications or middleware to access change-history. It can support a limited number of previous versions (ex. last ten versions), it also supports change-concatenation (so all changes happened within a specific period will be covered by one revision).
nicklozon/meteor-collection-revisions
Another sound option is to use Meteor Vermongo (here)
let view = ...
let point = ...
view.bounds.contains(point)
bool CGRectContainsPoint(CGRect rect, CGPoint point);
Parameters
rect
The rectangle to examine.point
The point to examine.
Return Value
true if the rectangle is not null or empty and the point is located within the rectangle; otherwise, false.A point is considered inside the rectangle if its coordinates lie inside the rectangle or on the minimum X or minimum Y edge.
First set a custom attribute into your option for example nameid
(you can set non-standardized attribute of an HTML element, it's allowed):
'<option nameid= "' + n.id + "' value="' + i + '">' + n.names + '</option>'
then you can easily get attribute value using jquery .attr()
:
$('option:selected').attr("nameid")
For Example:
<select id="jobSel" class="longcombo" onchange="GetNameId">
<option nameid="32" value="1">test1</option>
<option nameid="67" value="1">test2</option>
<option nameid="45" value="1">test3</option>
</select>
Jquery:
function GetNameId(){
alert($('#jobSel option:selected').attr("nameid"));
}
In Oracle, you can simply subtract two dates and get the difference in days. Also note that unlike SQL Server or MySQL, in Oracle you cannot perform a select
statement without a from
clause. One way around this is to use the builtin dummy table, dual
:
SELECT TO_DATE('2000-01-02', 'YYYY-MM-DD') -
TO_DATE('2000-01-01', 'YYYY-MM-DD') AS DateDiff
FROM dual
update of @Vladimir Tolstikov's answer
Create a Child Component that use ngOnChanges
.
ChildComponent.ts::
import { Component, OnChanges, Input } from '@angular/core';
import { ActivatedRoute } from '@angular/router';
@Component({
selector: 'child',
templateUrl: 'child.component.html',
})
export class ChildComponent implements OnChanges {
@Input() child_id;
constructor(private route: ActivatedRoute) { }
ngOnChanges() {
// create header using child_id
console.log(this.child_id);
}
}
now use it in MasterComponent's template and pass data to ChildComponent like:
<child [child_id]="child_id"></child>
You should get the String using scanner.next() and invoke String.charAt(0) method on the returned String.
Exmple :
import java.util.Scanner;
public class InputC{
public static void main(String[] args) {
// TODO Auto-generated method stub
// Declare the object and initialize with
// predefined standard input object
Scanner scanner = new Scanner(System.in);
System.out.println("Enter a character: ");
// Character input
char c = scanner.next().charAt(0);
// Print the read value
System.out.println("You have entered: "+c);
}
}
output
Enter a character:
a
You have entered: a
Good guestion! -- where I have not yet found a satisfying answer for my case, the answer I provide here works for me, but may not be future proof...
If one uses gcc (clang?) and have -Werror
and -Wbad-function-cast
defined,
int val = (int)pow(10,9);
will result:
error: cast from function call of type 'double' to non-matching type 'int' [-Werror=bad-function-cast]
(for a good reason, overflow and where values are rounded needs to be thought out)
EDIT: 2020-08-30: So, my use case casting the value from function returning double to int, and chose pow() to represent that in place of a private function somewhere. Then I sidestepped thinking pow() more. (See comments more why pow() used below could be problematic...).
After properly thought out (that parameters to pow() are good), int val = pow(10,9);
seems to work with gcc 9.2 x86-64 ...
but note:
printf("%d\n", pow(10,4));
may output e.g.
-1121380856
(did for me) where
int i = pow(10,4); printf("%d\n", i);
printed
10000
in one particular case I tried.
Neither is more correct, so take your pick. The empty return;
statement is provided to allow a return in a void
function from somewhere other than the end. No other reason I believe.
var rates=document.getElementsByName("rate");_x000D_
for (i = 0; i < rates.length; i++) {_x000D_
if (rates[i].checked) {_x000D_
console.log(rates[i].value);_x000D_
rate=rates[i].value;_x000D_
document.getElementById("rate").innerHTML = rate;_x000D_
alert(rate);_x000D_
_x000D_
}_x000D_
}
_x000D_
<div id="rates">_x000D_
<input type="radio" id="r1" name="rate" value="Fixed Rate"> Fixed Rate_x000D_
<input type="radio" id="r2" name="rate" value="Variable Rate"> Variable Rate_x000D_
<input type="radio" id="r3" name="rate" value="Multi Rate" checked="checked"> Multi Rate _x000D_
</div>_x000D_
</br>_x000D_
<div id='rate'>_x000D_
</div>
_x000D_
Getting Started - HTML Agility Pack
// From File
var doc = new HtmlDocument();
doc.Load(filePath);
// From String
var doc = new HtmlDocument();
doc.LoadHtml(html);
// From Web
var url = "http://html-agility-pack.net/";
var web = new HtmlWeb();
var doc = web.Load(url);
You have to get back out of the Iframe with the following code:
driver.switchTo().frame(driver.findElement(By.id("frameId")));
//do your stuff
driver.switchTo().defaultContent();
hope that helps
I've found an example on the internet.
Some guy wrote this code and worked perfectly
HTML
<div ng-cloak ng-app="ManagerApp">
<div id="MainWrap" class="container" ng-controller="ManagerCtrl">
<span class="label label-info label-ext">Exposing Controller Function outside the module via onClick function call</span>
<button onClick='ajaxResultPost("Update:Name:With:JOHN","accept",true);'>click me</button>
<br/> <span class="label label-warning label-ext" ng-bind="customParams.data"></span>
<br/> <span class="label label-warning label-ext" ng-bind="customParams.type"></span>
<br/> <span class="label label-warning label-ext" ng-bind="customParams.res"></span>
<br/>
<input type="text" ng-model="sampletext" size="60">
<br/>
</div>
</div>
JAVASCRIPT
var angularApp = angular.module('ManagerApp', []);
angularApp.controller('ManagerCtrl', ['$scope', function ($scope) {
$scope.customParams = {};
$scope.updateCustomRequest = function (data, type, res) {
$scope.customParams.data = data;
$scope.customParams.type = type;
$scope.customParams.res = res;
$scope.sampletext = "input text: " + data;
};
}]);
function ajaxResultPost(data, type, res) {
var scope = angular.element(document.getElementById("MainWrap")).scope();
scope.$apply(function () {
scope.updateCustomRequest(data, type, res);
});
}
*I did some modifications, see original: font JSfiddle
I hope this answer is still useful, despite problem seems to be quite old.
If you have Anaconda installed, and your OpenCV does not support GTK+ (as in this case), you can simply type
conda install -c menpo opencv=2.4.11
It will install suitable OpenCV version that does not produce a mentioned error. Besides, it will reinstall previously installed OpenCV if there was one as a part of Anaconda.
I came across your post as I was looking for a solution to the same problem for myself. I put together the following solution using a directive based on a number of posts. You can try it here (try resizing the browser window): http://jsfiddle.net/zbjLh/2/
View:
<div ng-app="miniapp" ng-controller="AppController" ng-style="style()" resize>
window.height: {{windowHeight}} <br />
window.width: {{windowWidth}} <br />
</div>
Controller:
var app = angular.module('miniapp', []);
function AppController($scope) {
/* Logic goes here */
}
app.directive('resize', function ($window) {
return function (scope, element) {
var w = angular.element($window);
scope.getWindowDimensions = function () {
return { 'h': w.height(), 'w': w.width() };
};
scope.$watch(scope.getWindowDimensions, function (newValue, oldValue) {
scope.windowHeight = newValue.h;
scope.windowWidth = newValue.w;
scope.style = function () {
return {
'height': (newValue.h - 100) + 'px',
'width': (newValue.w - 100) + 'px'
};
};
}, true);
w.bind('resize', function () {
scope.$apply();
});
}
})
FYI I originally had it working in a controller (http://jsfiddle.net/zbjLh/), but from subsequent reading found that this is uncool from Angular's perspective, so I have now converted it to use a directive.
Importantly, note the true
flag at the end of the 'watch' function, for comparing the getWindowDimensions return object's equality (remove or change to false if not using an object).
The amount of capacity which is to be exhausted for the HashMap to increase its capacity ?
Load factor is by default 0.75 of the initial capacity (16) therefore 25% of the buckets will be free before there is an increase in the capacity & this makes many new buckets with new hashcodes pointing to them to exist just after the increase in the number of buckets.
If you set the loading factor to say 1.0 then something very interesting might happen.
Say you are adding an object x to your hashmap whose hashCode is 888 & in your hashmap the bucket representing the hashcode is free , so the object x gets added to the bucket, but now again say if you are adding another object y whose hashCode is also 888 then your object y will get added for sure BUT at the end of the bucket (because the buckets are nothing but linkedList implementation storing key,value & next) now this has a performance impact ! Since your object y is no longer present in the head of the bucket if you perform a lookup the time taken is not going to be O(1) this time it depends on how many items are there in the same bucket. This is called hash collision by the way & this even happens when your loading factor is less than 1.
Lower load factor = more free buckets = less chances of collision = high performance = high space requirement.
Correct me if i am wrong somewhere.
Generally and simply it works like this:
<script>_x000D_
$(document).ready(function () {_x000D_
$('i').click(function () {_x000D_
$(this).toggleClass('fa-plus-square fa-minus-square');_x000D_
});_x000D_
});_x000D_
</script>
_x000D_
Just iterate over the transposed of your array:
for column in array.T:
some_function(column)
You can use advanced string formatting, available in Python 2.6 and Python 3.x:
incoming = 'arbit'
result = '{0} hello world {0} hello world {0}'.format(incoming)
There is a library that provides a better ProcessBuilder, zt-exec. This library can do exactly what you are asking for and more.
Here's what your code would look like with zt-exec instead of ProcessBuilder :
add the dependency :
<dependency>
<groupId>org.zeroturnaround</groupId>
<artifactId>zt-exec</artifactId>
<version>1.11</version>
</dependency>
The code :
new ProcessExecutor()
.command("somecommand", "arg1", "arg2")
.redirectOutput(System.out)
.redirectError(System.err)
.execute();
Documentation of the library is here : https://github.com/zeroturnaround/zt-exec/
Create index.html
or index.php
file in root directory (in your case - /var/www/html
, as @jabaldonedo mentioned)
As others have stated, you can use escape characters. You can use my header in order to make it easier:
#ifndef _COLORS_
#define _COLORS_
/* FOREGROUND */
#define RST "\x1B[0m"
#define KRED "\x1B[31m"
#define KGRN "\x1B[32m"
#define KYEL "\x1B[33m"
#define KBLU "\x1B[34m"
#define KMAG "\x1B[35m"
#define KCYN "\x1B[36m"
#define KWHT "\x1B[37m"
#define FRED(x) KRED x RST
#define FGRN(x) KGRN x RST
#define FYEL(x) KYEL x RST
#define FBLU(x) KBLU x RST
#define FMAG(x) KMAG x RST
#define FCYN(x) KCYN x RST
#define FWHT(x) KWHT x RST
#define BOLD(x) "\x1B[1m" x RST
#define UNDL(x) "\x1B[4m" x RST
#endif /* _COLORS_ */
An example using the macros of the header could be:
#include <iostream>
#include "colors.h"
using namespace std;
int main()
{
cout << FBLU("I'm blue.") << endl;
cout << BOLD(FBLU("I'm blue-bold.")) << endl;
return 0;
}
Two observations:
You should write
<input type="button" value="button text" />
instead of
<input type="button">button text</input>
You should rename your function. The function click()
is already defined on a button (it simulates a click), and gets a higher priority then your method.
Note that there are a couple of suggestions here that are plain wrong, and you shouldn't spend to much time on them:
onclick="javascript:myfunc()"
. Only use the javascript:
prefix inside the href
attribute of a hyperlink: <a href="javascript:myfunc()">
.onclick="foo()"
and onclick="foo();"
both work just fine.onclick
, onClick
and ONCLICK
all work. It is common practice to write attributes in lowercase: onclick
. note that javascript itself is case sensitive, so if you write document.getElementById("...").onclick = ...
, then it must be all lowercase.If your blog outputs an RSS feed you can use Facebook's "RSS Graffiti" application to post that feed to your wall in Facebook. There are other RSS Facebook apps as well; just search "Facebook for RSS apps"...
Portability is always an issue -- if not now, at least eventually. The programming industry spends billions every year to port old software which, at the time it was written, had "obviously" no portability issue whatsoever.
I use:
NSInteger stringToInt(NSString *string) {
return [string integerValue];
}
And vice versa:
NSString* intToString(NSInteger integer) {
return [NSString stringWithFormat:@"%d", integer];
}
Try to use datepicker/ timepicker instead of datetimepicker like:
replace:
$('#datetimepicker1').datetimepicker();
with:
$('#datetimepicker1').datepicker(); // or timepicker for time picker
if you want to remove pagination and but want ordering of dataTable then add this script at the end of your page!
<script>_x000D_
$(document).ready(function() { _x000D_
$('#table_id').DataTable({_x000D_
"paging": false,_x000D_
"info": false_x000D_
} );_x000D_
_x000D_
} );_x000D_
</script>
_x000D_
I have the following in my ~/.bash_profile
:
if [ -f ~/.bashrc ]; then . ~/.bashrc; fi
If I had .bashrc
instead of ~/.bashrc
, I'd be seeing the same symptom you're seeing.
Set cache: false in jQuery.get call using Below Method
use new Date().getTime(),
which will avoid collisions unless you have multiple requests happening within the same millisecond.
Or
The following will prevent all future AJAX requests from being cached, regardless of which jQuery method you use ($.get, $.ajax, etc.)
$.ajaxSetup({ cache: false });
mysql> SELECT CAST(4 AS DECIMAL(4,3));
+-------------------------+
| CAST(4 AS DECIMAL(4,3)) |
+-------------------------+
| 4.000 |
+-------------------------+
1 row in set (0.00 sec)
mysql> SELECT CAST('4.5s' AS DECIMAL(4,3));
+------------------------------+
| CAST('4.5s' AS DECIMAL(4,3)) |
+------------------------------+
| 4.500 |
+------------------------------+
1 row in set (0.00 sec)
mysql> SELECT CAST('a4.5s' AS DECIMAL(4,3));
+-------------------------------+
| CAST('a4.5s' AS DECIMAL(4,3)) |
+-------------------------------+
| 0.000 |
+-------------------------------+
1 row in set, 1 warning (0.00 sec)
Newer kernels (e.g. the latest Ubuntu kernels) come with the new 'perf' tools (apt-get install linux-tools
) AKA perf_events.
These come with classic sampling profilers (man-page) as well as the awesome timechart!
The important thing is that these tools can be system profiling and not just process profiling - they can show the interaction between threads, processes and the kernel and let you understand the scheduling and I/O dependencies between processes.
Since you're going to be dealing with data of a variable length (names, email addresses), then you'd be wanting to use VARCHAR. The amount of space taken up by a VARCHAR field is [field length]
+ 1 bytes, up to max length 255, so I wouldn't worry too much about trying to find a perfect size. Take a look at what you'd imagine might be the longest length might be, then double it and set that as your VARCHAR limit. That said...:
I generally set email fields to be VARCHAR(100) - i haven't come up with a problem from that yet. Names I set to VARCHAR(50).
As the others have said, phone numbers and zip/postal codes are not actually numeric values, they're strings containing the digits 0-9 (and sometimes more!), and therefore you should treat them as a string. VARCHAR(20) should be well sufficient.
Note that if you were to store phone numbers as integers, many systems will assume that a number starting with 0 is an octal (base 8) number! Therefore, the perfectly valid phone number "0731602412" would get put into your database as the decimal number "124192010"!!
The Python docs say all that needs to be said, as far as I can see.
setattr
(object, name, value)This is the counterpart of
getattr()
. The arguments are an object, a string and an arbitrary value. The string may name an existing attribute or a new attribute. The function assigns the value to the attribute, provided the object allows it. For example,setattr(x, 'foobar', 123)
is equivalent tox.foobar = 123
.
If this isn't enough, explain what you don't understand.
JWTs can be either signed, encrypted or both. If a token is signed, but not encrypted, everyone can read its contents, but when you don't know the private key, you can't change it. Otherwise, the receiver will notice that the signature won't match anymore.
Answer to your comment: I'm not sure if I understand your comment the right way. Just to be sure: do you know and understand digital signatures? I'll just briefly explain one variant (HMAC, which is symmetrical, but there are many others).
Let's assume Alice wants to send a JWT to Bob. They both know some shared secret. Mallory doesn't know that secret, but wants to interfere and change the JWT. To prevent that, Alice calculates Hash(payload + secret)
and appends this as signature.
When receiving the message, Bob can also calculate Hash(payload + secret)
to check whether the signature matches.
If however, Mallory changes something in the content, she isn't able to calculate the matching signature (which would be Hash(newContent + secret)
). She doesn't know the secret and has no way of finding it out.
This means if she changes something, the signature won't match anymore, and Bob will simply not accept the JWT anymore.
Let's suppose, I send another person the message {"id":1}
and sign it with Hash(content + secret)
. (+ is just concatenation here). I use the SHA256 Hash function, and the signature I get is: 330e7b0775561c6e95797d4dd306a150046e239986f0a1373230fda0235bda8c
. Now it's your turn: play the role of Mallory and try to sign the message {"id":2}
. You can't because you don't know which secret I used. If I suppose that the recipient knows the secret, he CAN calculate the signature of any message and check if it's correct.
Hope this Helps:
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
class Person implements Comparable {
String firstName, lastName;
public Person(String f, String l) {
this.firstName = f;
this.lastName = l;
}
public String getFirstName() {
return firstName;
}
public String getLastName() {
return lastName;
}
public String toString() {
return "[ firstname=" + firstName + ",lastname=" + lastName + "]";
}
public int compareTo(Object obj) {
Person emp = (Person) obj;
int deptComp = firstName.compareTo(emp.getFirstName());
return ((deptComp == 0) ? lastName.compareTo(emp.getLastName()) : deptComp);
}
public boolean equals(Object obj) {
if (!(obj instanceof Person)) {
return false;
}
Person emp = (Person) obj;
return firstName.equals(emp.getFirstName()) && lastName.equals(emp.getLastName());
}
}
class PersonComparator implements Comparator<Person> {
public int compare(Person emp1, Person emp2) {
int nameComp = emp1.getLastName().compareTo(emp2.getLastName());
return ((nameComp == 0) ? emp1.getFirstName().compareTo(emp2.getFirstName()) : nameComp);
}
}
public class Main {
public static void main(String args[]) {
ArrayList<Person> names = new ArrayList<Person>();
names.add(new Person("E", "T"));
names.add(new Person("A", "G"));
names.add(new Person("B", "H"));
names.add(new Person("C", "J"));
Iterator iter1 = names.iterator();
while (iter1.hasNext()) {
System.out.println(iter1.next());
}
Collections.sort(names, new PersonComparator());
Iterator iter2 = names.iterator();
while (iter2.hasNext()) {
System.out.println(iter2.next());
}
}
}
Another possibility is to use bit sets, for which there is at least one package or you can use the built-in big package. In this case, basically you need to define a way to convert your object to an index.
I've more recently found a much cleaner approach to this, which can be executed at any time, rather than being forced to do it synchronously when the script loads.
Use stackinfo to get a stacktrace at a current location, and grab the info.file
name off the top of the stack.
info = stackinfo()
console.log('This is the url of the script '+info[0].file)
Ajax Submit form with out page refresh by using jquery ajax method first include library jquery.js and jquery-form.js then create form in html:
<form action="postpage.php" method="POST" id="postForm" >
<div id="flash_success"></div>
name:
<input type="text" name="name" />
password:
<input type="password" name="pass" />
Email:
<input type="text" name="email" />
<input type="submit" name="btn" value="Submit" />
</form>
<script>
var options = {
target: '#flash_success', // your response show in this ID
beforeSubmit: callValidationFunction,
success: YourResponseFunction
};
// bind to the form's submit event
jQuery('#postForm').submit(function() {
jQuery(this).ajaxSubmit(options);
return false;
});
});
function callValidationFunction()
{
// validation code for your form HERE
}
function YourResponseFunction(responseText, statusText, xhr, $form)
{
if(responseText=='success')
{
$('#flash_success').html('Your Success Message Here!!!');
$('body,html').animate({scrollTop: 0}, 800);
}else
{
$('#flash_success').html('Error Msg Here');
}
}
</script>
Server
import java.net.*;
import java.io.*;
import java.util.*;
import javax.net.ssl.*;
import javax.net.*;
class Test{
public static void main(String[] args){
try{
SSLContext context = SSLContext.getInstance("TLSv1.2");
context.init(null,null,null);
SSLServerSocketFactory serverSocketFactory = context.getServerSocketFactory();
SSLServerSocket server = (SSLServerSocket)serverSocketFactory.createServerSocket(1024);
server.setEnabledCipherSuites(server.getSupportedCipherSuites());
SSLSocket socket = (SSLSocket)server.accept();
DataInputStream in = new DataInputStream(socket.getInputStream());
DataOutputStream out = new DataOutputStream(socket.getOutputStream());
System.out.println(in.readInt());
}catch(Exception e){e.printStackTrace();}
}
}
Client
import java.net.*;
import java.io.*;
import java.util.*;
import javax.net.ssl.*;
import javax.net.*;
class Test2{
public static void main(String[] args){
try{
SSLContext context = SSLContext.getInstance("TLSv1.2");
context.init(null,null,null);
SSLSocketFactory socketFactory = context.getSocketFactory();
SSLSocket socket = (SSLSocket)socketFactory.createSocket("localhost", 1024);
socket.setEnabledCipherSuites(socket.getSupportedCipherSuites());
DataInputStream in = new DataInputStream(socket.getInputStream());
DataOutputStream out = new DataOutputStream(socket.getOutputStream());
out.writeInt(1337);
}catch(Exception e){e.printStackTrace();}
}
}
server.setEnabledCipherSuites(server.getSupportedCipherSuites()); socket.setEnabledCipherSuites(socket.getSupportedCipherSuites());
You are implementing LocationListener in your activity MainActivity. The call for concurrent location updates will therefor be like this:
mLocationClient.requestLocationUpdates(mLocationRequest, this);
Be sure that the LocationListener you're implementing is from the google api, that is import this:
import com.google.android.gms.location.LocationListener;
and not this:
import android.location.LocationListener;
and it should work just fine.
It's also important that the LocationClient really is connected before you do this. I suggest you don't call it in the onCreate or onStart methods, but in onResume. It is all explained quite well in the tutorial for Google Location Api: https://developer.android.com/training/location/index.html
max
is a builtin function in python, which is used to get max value from a sequence, i.e (list, tuple, set, etc..)
print(max([9, 7, 12, 5]))
# prints 12
It depends on the size of the file! The solutions above tend to use convenient shorthands to copy the entire file into memory, which will work in many cases.
For very large files you may need to use a streaming design where read the file by line or in chucks, process the chunks, then discard them from memory.
See the answer on reading line by line with perl if that's what you need.
You can set timeouts for all connections made from the jvm by changing the following System-properties:
System.setProperty("sun.net.client.defaultConnectTimeout", "10000");
System.setProperty("sun.net.client.defaultReadTimeout", "10000");
Every connection will time out after 10 seconds.
Setting 'defaultReadTimeout' is not needed, but shown as an example if you need to control reading.
I was uninstalled compass 1.0.1 and install compass 0.12.7, this fix problem for me
$ sudo gem uninstall compass
$ sudo gem install compass -v 0.12.7
This may also happen if you have duplicate TagPrefix in your ASPX file.
This would cause this error...
<%@ Register Src="Control1.ascx" TagName="Control1" TagPrefix="uc1" %>
<%@ Register Src="Control2.ascx" TagName="Control2" TagPrefix="uc1" %>
You can fix this by simply changing the 2nd "uc1" to "uc2"
Fixed...
<%@ Register Src="Control1.ascx" TagName="Control1" TagPrefix="uc1" %>
<%@ Register Src="Control2.ascx" TagName="Control2" TagPrefix="uc2" %>
Swift 4 Examples
Example #1 using closure
NotificationCenter.default.addObserver(forName: .UIApplicationUserDidTakeScreenshot,
object: nil,
queue: OperationQueue.main) { notification in
print("\(notification) that a screenshot was taken!")
}
Example #2 with selector
NotificationCenter.default.addObserver(self,
selector: #selector(screenshotTaken),
name: .UIApplicationUserDidTakeScreenshot,
object: nil)
@objc func screenshotTaken() {
print("Screenshot taken!")
}
Imagine that you are a boss and you have an assistant and a maid, and you give them a list of tasks to do, the assistant (compile time) will grab this list and make a checkup to see if the tasks are understandable and that you didn't write in any awkward language or syntax, so he understands that you want to assign someone for a Job so he assign him for you and he understand that you want some coffee, so his role is over and the maid (run time)starts to run those tasks so she goes to make you some coffee but in sudden she doesn’t find any coffee to make so she stops making it or she acts differently and make you some tea (when the program acts differently because he found an error).
Use imagesLoaded PACKAGED v3.1.8 (6.8 Kb when minimized). It is relatively old (since 2010) but still active project.
You can find it on github: https://github.com/desandro/imagesloaded
Their official site: http://imagesloaded.desandro.com/
Why it is better than using:
$(window).load()
Because you may want to load images dynamically, like this: jsfiddle
$('#button').click(function(){
$('#image').attr('src', '...');
});
For Atlassian Connect Apps, use
AP.navigator.reload();
See details here
$('#select_id').on('change', function()
{
alert(this.value); //or alert($(this).val());
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<select id="select_id">
<option value="1">Option 1</option>
<option value="2">Option 2</option>
<option value="3">Option 3</option>
<option value="4">Option 4</option>
</select>
It sounds like you may be wanting to access the viewport of the device. You can do this by inserting this meta tag in your header.
<meta name="viewport" content="width=device-width, initial-scale=1.0">
Here is a part of my code that parse JSON, it may be helpful for you:
import { Component, Input } from '@angular/core';
import { Injectable } from '@angular/core';
import { Http, Response, Headers, RequestOptions } from '@angular/http';
import {Observable} from 'rxjs/Rx';
import 'rxjs/add/operator/map';
import 'rxjs/add/operator/catch';
@Injectable()
export class AppServices{
constructor(private http: Http) {
var obj;
this.getJSON().subscribe(data => obj=data, error => console.log(error));
}
public getJSON(): Observable<any> {
return this.http.get("./file.json")
.map((res:any) => res.json())
.catch((error:any) => console.log(error));
}
}
The accepted answer is great. I am making a table that helps in quick comprehension of the topic. The explanation involves a simple variable a
as well as an indexed array arr
.
If we set
a=apple # a simple variable
arr=(apple) # an indexed array with a single element
and then echo
the expression in the second column, we would get the result / behavior shown in the third column. The fourth column explains the behavior.
# | Expression | Result | Comments |
---|---|---|---|
1 | "$a" |
apple |
variables are expanded inside "" |
2 | '$a' |
$a |
variables are not expanded inside '' |
3 | "'$a'" |
'apple' |
'' has no special meaning inside "" |
4 | '"$a"' |
"$a" |
"" is treated literally inside '' |
5 | '\'' |
invalid | can not escape a ' within '' ; use "'" or $'\'' (ANSI-C quoting) |
6 | "red$arocks" |
red |
$arocks does not expand $a ; use ${a}rocks to preserve $a |
7 | "redapple$" |
redapple$ |
$ followed by no variable name evaluates to $ |
8 | '\"' |
\" |
\ has no special meaning inside '' |
9 | "\'" |
\' |
\' is interpreted inside "" but has no significance for ' |
10 | "\"" |
" |
\" is interpreted inside "" |
11 | "*" |
* |
glob does not work inside "" or '' |
12 | "\t\n" |
\t\n |
\t and \n have no special meaning inside "" or '' ; use ANSI-C quoting |
13 | "`echo hi`" |
hi |
`` and $() are evaluated inside "" (backquotes are retained in actual output) |
14 | '`echo hi`' |
echo hi | `` and $() are not evaluated inside '' (backquotes are retained in actual output) |
15 | '${arr[0]}' |
${arr[0]} |
array access not possible inside '' |
16 | "${arr[0]}" |
apple |
array access works inside "" |
17 | $'$a\'' |
$a' |
single quotes can be escaped inside ANSI-C quoting |
18 | "$'\t'" |
$'\t' |
ANSI-C quoting is not interpreted inside "" |
19 | '!cmd' |
!cmd |
history expansion character '!' is ignored inside '' |
20 | "!cmd" |
cmd args |
expands to the most recent command matching "cmd" |
21 | $'!cmd' |
!cmd |
history expansion character '!' is ignored inside ANSI-C quotes |
See also:
You can also do:
return InternalServerError(new Exception("SOME CUSTOM MESSAGE"));
Too late but I want to share the way that I resolve it.
Having model
file which has two named export:
export { Schema, Model };
and having controller
file which has the default export:
export default Controller;
I exposed in the index
file in this way:
import { Schema, Model } from './model';
import Controller from './controller';
export { Schema, Model, Controller };
and assuming that I want import all of them:
import { Schema, Model, Controller } from '../../path/';
The Light,
You can configure the process acting as the client to use fiddler as a proxy.
Fiddler sets itself up as a proxy conveniently on 127.0.0.1:8888, and by default overrides the system settings under Internet Options in the Control Panel (if you've configured any) such that all traffic from the common protocols (http, https, and ftp) goes to 127.0.0.1:8888 before leaving your machine.
Now these protocols are often from common processes such as browsers, and so are easily picked up by fiddler. However, in your case, the process initiating the requests is probably not a browser, but one for a programming language like php.exe, or java.exe, or whatever language you are using.
If, say, you're using php, you can leverage curl. Ensure that the curl module is enabled, and then right before your code that invokes the request, include:
curl_setopt($ch, CURLOPT_PROXY, '127.0.0.1:8888');
Hope this helps. You can also always lookup stuff like so from the fiddler documentation for a basis for you to build upon e.g. http://docs.telerik.com/fiddler/Configure-Fiddler/Tasks/ConfigurePHPcURL
The windows handle limit for your application is 10,000 handles. You're getting the error because your program is creating too many handles. You'll need to find the memory leak. As other users have suggested, use a Memory Profiler. I use the .Net Memory Profiler as well. Also, make sure you're calling the dispose method on controls if you're removing them from a form before the form closes (otherwise the controls won't dispose). You'll also have to make sure that there are no events registered with the control. I myself have the same issue, and despite what I already know, I still have some memory leaks that continue to elude me..
I ran into this problem yesterday, so I created a React-friendly solution.
Check out react-native-listener. It's working very well so far. Feedback appreciated.
Via here
Checking the owner of /dev/console seems to work well.
stat -f "%Su" /dev/console
Maybe have a look at this solution: https://codepen.io/quinlo/pen/YONMEa
//pop in the appropriate card icon when detected
cardnumber_mask.on("accept", function () {
console.log(cardnumber_mask.masked.currentMask.cardtype);
switch (cardnumber_mask.masked.currentMask.cardtype) {
case 'american express':
ccicon.innerHTML = amex;
ccsingle.innerHTML = amex_single;
swapColor('green');
break;
case 'visa':
ccicon.innerHTML = visa;
ccsingle.innerHTML = visa_single;
swapColor('lime');
break;
case 'diners':
ccicon.innerHTML = diners;
ccsingle.innerHTML = diners_single;
swapColor('orange');
break;
case 'discover':
ccicon.innerHTML = discover;
ccsingle.innerHTML = discover_single;
swapColor('purple');
break;
case ('jcb' || 'jcb15'):
ccicon.innerHTML = jcb;
ccsingle.innerHTML = jcb_single;
swapColor('red');
break;
case 'maestro':
ccicon.innerHTML = maestro;
ccsingle.innerHTML = maestro_single;
swapColor('yellow');
break;
case 'mastercard':
ccicon.innerHTML = mastercard;
ccsingle.innerHTML = mastercard_single;
swapColor('lightblue');
break;
case 'unionpay':
ccicon.innerHTML = unionpay;
ccsingle.innerHTML = unionpay_single;
swapColor('cyan');
break;
default:
ccicon.innerHTML = '';
ccsingle.innerHTML = '';
swapColor('grey');
break;
}
});