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queue, deque, priority_queue

What differences between queue, deque and priority_queue? And under what
situations choose one of them to use? Thanks for your help!
Jul 19 '05 #1
16 12609
In article <47_lb.190847$0v4.14787426@bgtnsc04-
news.ops.worldnet.att.net>, ne*****@hotmail.com says...
What differences between queue, deque and priority_queue? And under what
situations choose one of them to use? Thanks for your help!


With a queue, you insert items at one and and extract them from the
other end -- i.e. you can ONLY get things out in the order in which they
were inserted.

With a deque, you can insert and/or remove from either end, so you get a
combination of stack behavior (remove the most recently inserted item)
or queue behavior (as above).

A priority queue is different from either of these. With a priority
queue, you specify an ordering by which items will be sorted. You
insert items and you remove items, but when you remove items, you get
them in sorted order. This is handy for things like tasks that have to
be completed. When a task arises that will need to be done, you put it
into the priority queue. When you're ready to carry out a task, you
pull one from the priority queue, and you'll get the highest priority
task that's waiting.

--
Later,
Jerry.

The universe is a figment of its own imagination.
Jul 19 '05 #2
Jerry Coffin wrote:
In article <47_lb.190847$0v4.14787426@bgtnsc04-
news.ops.worldnet.att.net>, ne*****@hotmail.com says...
What differences between queue, deque and priority_queue? And under
what situations choose one of them to use? Thanks for your help!


With a queue, you insert items at one and and extract them from the
other end -- i.e. you can ONLY get things out in the order in which
they were inserted.

With a deque, you can insert and/or remove from either end, so you
get a combination of stack behavior (remove the most recently
inserted item)
or queue behavior (as above).

A priority queue is different from either of these. With a priority
queue, you specify an ordering by which items will be sorted. You
insert items and you remove items, but when you remove items, you get
them in sorted order. This is handy for things like tasks that have to
be completed. When a task arises that will need to be done, you put
it into the priority queue. When you're ready to carry out a task,
you
pull one from the priority queue, and you'll get the highest priority
task that's waiting.


....'dequeue' is a particularly confusing choice of name; it stands for
Double-Ended Queue... but also means 'to remove from a queue' when used as a
verb.
Jul 19 '05 #3


While it was 24/10/03 10:41 am throughout the UK, Tim Clacy sprinkled
little black dots on a white screen, and they fell thus:

<snip>
...'dequeue' is a particularly confusing choice of name; it stands for
Double-Ended Queue... but also means 'to remove from a queue' when used as a
verb.


Where in the world does "dequeue" mean deque?

Stewart.

--
My e-mail is valid but not my primary mailbox. Please keep replies on
on the 'group where everyone may benefit.
Jul 19 '05 #4
Stewart Gordon wrote:
While it was 24/10/03 10:41 am throughout the UK, Tim Clacy sprinkled
little black dots on a white screen, and they fell thus:

<snip>
...'dequeue' is a particularly confusing choice of name; it stands
for Double-Ended Queue... but also means 'to remove from a queue'
when used as a verb.


Where in the world does "dequeue" mean deque?

Stewart.

.... are you implying that that there is no ambiguity? In what way is 'deque'
sufficiently different from 'dequeue' that there is no ambiguity? Why not
post a .wav file so we can hear the difference?
I'm somewhat suprised that anyone could actually defend the unispired choice
of names used in this context; have you escaped from somewhere that had soft
walls?
// A double-ended queue (not to be confused with any common or garden queue
with, of course, also has two ends):
//
template<typename T>
struct dequeue
{
// A single ended queue (hmm, the word oxymoron springs to mind)
//
struct queue
{
void enque(T item);
T deque(); // Apparently, self-explanitory (despite the made-up
word 'que')
:
};
};
Mr Grodon; if you can't see any issue here, then I pity the poor souls who
have to fix your code.
Tim
Jul 19 '05 #5
In article <3f*********************@news.dk.uu.net>,
no*******@nospamphaseone.nospamdk says...

[ ... ]
... are you implying that that there is no ambiguity? In what way is 'deque'
sufficiently different from 'dequeue' that there is no ambiguity? Why not
post a .wav file so we can hear the difference?


In pronunciation, ambiguity is removed -- a double-ended queue is
pronounced like "deck" while removing from a queue is pronounced like
"DQ" (i.e. pronounce the names of the letters in quick succession, much
the way an American teenager would refer to Dairy Queen).

--
Later,
Jerry.

The universe is a figment of its own imagination.
Jul 19 '05 #6


While it was 29/10/03 9:03 am throughout the UK, Tim Clacy sprinkled
little black dots on a white screen, and they fell thus:
<snip>
// A double-ended queue (not to be confused with any common or garden queue
with, of course, also has two ends):
//
template<typename T>
struct dequeue
{
// A single ended queue (hmm, the word oxymoron springs to mind)
//
struct queue
{
Huh?
void enque(T item);
T deque(); // Apparently, self-explanitory (despite the made-up
word 'que')
:
};
};
Mr Grodon; if you can't see any issue here, then I pity the poor souls who
have to fix your code.


I pity the poor souls, which I believe exist in some programming
circles, who use "deque" as an abbreviation for "dequeue", presumably
unaware of what "deque" really means.

Stewart.
Jul 19 '05 #7
Stewart Gordon wrote:
While it was 29/10/03 9:03 am throughout the UK, Tim Clacy sprinkled
little black dots on a white screen, and they fell thus:
<snip>
// A double-ended queue (not to be confused with any common or
garden queue with, of course, also has two ends):
//
template<typename T>
struct dequeue
{
// A single ended queue (hmm, the word oxymoron springs to mind)
//
struct queue
{
Huh?


Hmm, trying stringing some real words together to form a complete question
if you don't understand. My point is that all queues have two ends; in fact,
since there is no such thing as a single-ended queue, a double-ended queue
is a complete misnomer. Perhaps 'DualPortBuffer' might have been a better
choice of name. The lousy choice of name for an abstract-data-type is
further compounded by trying to squeeze in an operation name De-Queue (to
remove from the queue), but due to some unfathomable love of compounded,
lowercase mnemonics as identifier names, we have 'deque'. Why not use real
verbs instead of making your own up?
void enque(T item);
T deque(); // Apparently, self-explanitory (despite the
made-up word 'que')
:
};
};
Mr Grodon; if you can't see any issue here, then I pity the poor
souls who have to fix your code.


I pity the poor souls, which I believe exist in some programming
circles, who use "deque" as an abbreviation for "dequeue", presumably
unaware of what "deque" really means.

Stewart.


Anyone software developer from the civilised world who hadn't used STL
before would not understand what on Earth you ranting about with dequeue and
deque... which proves my point convincingly.
Tim
Jul 19 '05 #8
Jerry Coffin wrote:
In article <3f*********************@news.dk.uu.net>,
no*******@nospamphaseone.nospamdk says...

[ ... ]
... are you implying that that there is no ambiguity? In what way is
'deque' sufficiently different from 'dequeue' that there is no
ambiguity? Why not post a .wav file so we can hear the difference?


In pronunciation, ambiguity is removed -- a double-ended queue is
pronounced like "deck" while removing from a queue is pronounced like
"DQ" (i.e. pronounce the names of the letters in quick succession,
much
the way an American teenager would refer to Dairy Queen).

Abreviations and corner cutting are the root of many a programming evil; one
of the objectives of using a high-level language over machine code is to
provide unambiguous, maintainable, sources instead of crude error-prone
mnemonics. Since most high level languages allow use of mixed case and have
limits for identifier names more than 8 letters, why would anyone not use:

struct DoubleEndedQueue
{
:
};

T Queue::RemoveFromFront() // Or Get, Pull, Pop... anything except made-up
words likke 'deque'
{
:
}

void Queue::AddToBack() // Or Put, Push, Add... anything except made-up
words like 'enque'
{
:
}

I suspect the American love of acronyms and short-cuts coupled with an
unhealthy disregard for standard spelling has a hand in this shoddy
workmanship; this is the country, after all, that even abbreviates USA to US
and gasoline to gas (the only country in the world where you can get wet
feet from spilling gas).
Tim
Jul 19 '05 #9
"Tim Clacy" <no*******@nospamphaseone.nospamdk> wrote in message news:<3f*********************@news.dk.uu.net>...
Stewart Gordon wrote:
While it was 29/10/03 9:03 am throughout the UK, Tim Clacy sprinkled
little black dots on a white screen, and they fell thus:
<snip>
// A double-ended queue (not to be confused with any common or
garden queue with, of course, also has two ends):
//
template<typename T>
struct dequeue
{
// A single ended queue (hmm, the word oxymoron springs to mind)
//
struct queue
{
Huh?


Hmm, trying stringing some real words together to form a complete question
if you don't understand. My point is that all queues have two ends; in fact,
since there is no such thing as a single-ended queue, a double-ended queue
is a complete misnomer. Perhaps 'DualPortBuffer' might have been a better
choice of name.


Perhaps. Though dual_port_buffer would be more in keeping with the
style of the rest of the language and library.
The lousy choice of name for an abstract-data-type is
further compounded by trying to squeeze in an operation name De-Queue (to
remove from the queue), but due to some unfathomable love of compounded,
lowercase mnemonics as identifier names, we have 'deque'. Why not use real
verbs instead of making your own up?


Huh?

Unless I am missing part of the thread, it was you who brought up the
term 'to dequeue'. The C++ standard doesn't mention the word
(although, obviously the concept will be relevant to C++ programmers
using std::queue and std::deque).

Nobody is inventing verbs. The only invented word here is deque, which
is a noun.
void enque(T item);
T deque(); // Apparently, self-explanitory (despite the
made-up word 'que')
:
};
};
Mr Grodon; if you can't see any issue here, then I pity the poor
souls who have to fix your code.


I pity the poor souls, which I believe exist in some programming
circles, who use "deque" as an abbreviation for "dequeue", presumably
unaware of what "deque" really means.

Stewart.


Anyone software developer from the civilised world who hadn't used STL
before would not understand what on Earth you ranting about with dequeue and
deque... which proves my point convincingly.


I would hope that any software developer who had never used STL
before, then came across std::deque, might look it up to find out what
it is. I believe 'deque' is used as a noun to mean 'double ended
queue' (misnomer or otherwise) outside of just the C++ standard
library. I have never encountered the verb 'deque' as an abbreviation
for 'dequeue' outside of your code above.

GJD
Jul 19 '05 #10
Gavin Deane wrote:
"Tim Clacy" <no*******@nospamphaseone.nospamdk> wrote in message
news:<3f*********************@news.dk.uu.net>...
Stewart Gordon wrote:
While it was 29/10/03 9:03 am throughout the UK, Tim Clacy sprinkled
little black dots on a white screen, and they fell thus:
<snip>
// A double-ended queue (not to be confused with any common or
garden queue with, of course, also has two ends):
//
template<typename T>
struct dequeue
{
// A single ended queue (hmm, the word oxymoron springs to
mind) //
struct queue
{

Huh?


Hmm, trying stringing some real words together to form a complete
question
if you don't understand. My point is that all queues have two ends;
in fact,
since there is no such thing as a single-ended queue, a double-ended
queue
is a complete misnomer. Perhaps 'DualPortBuffer' might have been a
better
choice of name.


Perhaps. Though dual_port_buffer would be more in keeping with the
style of the rest of the language and library.
The lousy choice of name for an abstract-data-type is
further compounded by trying to squeeze in an operation name
De-Queue (to
remove from the queue), but due to some unfathomable love of
compounded,
lowercase mnemonics as identifier names, we have 'deque'. Why not
use real
verbs instead of making your own up?


Huh?

Unless I am missing part of the thread, it was you who brought up the
term 'to dequeue'. The C++ standard doesn't mention the word
(although, obviously the concept will be relevant to C++ programmers
using std::queue and std::deque).

Nobody is inventing verbs. The only invented word here is deque, which
is a noun.

I had muddled deque and dequeue... which kind of proves the point. To
clarify, these are the words in question:

queue - noun
deque - noun (made up name)
dequeue - verb (or noun depending on library)
enqueue - verb (verb)

My original point was simply if 'queue' is a Queue ADT, then one might
reasonably expect a double-ended Queue to be called 'dequeue'... but no, a
double-ended Queue ADT is called deque... because 'dequeue' has already been
used up as a verb. I find it all quite a laughable shambles; this is the
kind of mess that is inevitable when you favour mnemonics of meaningful
names.

However, the plot thickens... If you google C++ deque dequeue, you'll find
many examples of libraries using 'dequeue' as a name of the double-ended
queue ADT... and also STL tutorials using dequeue as the double-ended queue
ADT!

void enque(T item);
T deque(); // Apparently, self-explanitory (despite the
made-up word 'que')
:
};
};
Mr Grodon; if you can't see any issue here, then I pity the poor
souls who have to fix your code.

I pity the poor souls, which I believe exist in some programming
circles, who use "deque" as an abbreviation for "dequeue",
presumably
unaware of what "deque" really means.

Stewart.


Anyone software developer from the civilised world who hadn't used
STL
before would not understand what on Earth you ranting about with
dequeue and
deque... which proves my point convincingly.


I would hope that any software developer who had never used STL
before, then came across std::deque, might look it up to find out what
it is. I believe 'deque' is used as a noun to mean 'double ended
queue' (misnomer or otherwise) outside of just the C++ standard
library. I have never encountered the verb 'deque' as an abbreviation
for 'dequeue' outside of your code above.

GJD

Jul 19 '05 #11
In article <3f*********************@news.dk.uu.net>,
no*******@nospamphaseone.nospamdk says...

[ ... ]
Abreviations and corner cutting are the root of many a programming evil;
They're also the cornerstone not only of programming, but of
intelligence in general -- the brain would be utterly overloaded of it
had to operate only on complete, unambiguous, literal representations of
things. Abbreviations and other methods of compressing the data are a
necessity for the brain to cope. The degree to which one can compress
ideas determines, to a large degree, the complexity of ideas that can be
grasped and processed.
T Queue::RemoveFromFront() // Or Get, Pull, Pop... anything except made-up
words likke 'deque' [ ... ] void Queue::AddToBack() // Or Put, Push, Add... anything except made-up
words like 'enque'
English was not handed down from God on stone tablets. Every word is
made up, and virtually everything that gets said on this newsgroup
(among many other places) was thoroughly improper English at one time.
"Add", "Put" and "Push" have no inherent superiority over "enque".
I suspect the American love of acronyms and short-cuts coupled with an
unhealthy disregard for standard spelling has a hand in this shoddy
workmanship; this is the country, after all, that even abbreviates USA to US
and gasoline to gas (the only country in the world where you can get wet
feet from spilling gas).


As with science fiction, so with science fact as well. At least 90% of
what's bad in programming has its root in the US, but then at least 90%
of everything that happens in programming has its root in the US...

In reality, of course, people elsewhere shorten words as well, simply in
other ways -- you can complain about "gas" in the US, but people in the
UK are no better -- what they put in their cars is "petrol", not
"petroleum".

In the end, I've yet to see a single shred of evidence linking the
readability of a program to the nationality of the programmer.

Getting back to the original subject, enque, deque and dequeue are all
perfectly reasonable terms. Your failure to understand them implies no
ambiguity in the terms themselves.

--
Later,
Jerry.

The universe is a figment of its own imagination.
Jul 19 '05 #12
The following article uses queue and priority_queue:

http://www.eventhelix.com/RealtimeMa...patterns_2.htm

Sandeep
--
http://www.EventHelix.com/EventStudio
EventStudio 2.0 - System Architecture Design CASE Tool
Jul 19 '05 #13
Jerry Coffin wrote:
In article <3f*********************@news.dk.uu.net>,
no*******@nospamphaseone.nospamdk says...

[ ... ]
Abreviations and corner cutting are the root of many a programming
evil;
They're also the cornerstone not only of programming, but of
intelligence in general -- the brain would be utterly overloaded of it
had to operate only on complete, unambiguous, literal representations
of things. Abbreviations and other methods of compressing the data
are a necessity for the brain to cope. The degree to which one can
compress
ideas determines, to a large degree, the complexity of ideas that can
be grasped and processed.


....ut goes without saying that the brain stands a better chance of building
a superior model of the problem if the problem is described in familiar
metaphors, using familiar language.
T Queue::RemoveFromFront() // Or Get, Pull, Pop... anything except
made-up words likke 'deque'

[ ... ]
void Queue::AddToBack() // Or Put, Push, Add... anything except
made-up words like 'enque'


English was not handed down from God on stone tablets. Every word is
made up, and virtually everything that gets said on this newsgroup
(among many other places) was thoroughly improper English at one time.
"Add", "Put" and "Push" have no inherent superiority over "enque".


....other than being real words.
I suspect the American love of acronyms and short-cuts coupled with
an unhealthy disregard for standard spelling has a hand in this
shoddy workmanship; this is the country, after all, that even
abbreviates USA to US and gasoline to gas (the only country in the
world where you can get wet feet from spilling gas).


As with science fiction, so with science fact as well. At least 90%
of what's bad in programming has its root in the US, but then at
least 90%
of everything that happens in programming has its root in the US...

In reality, of course, people elsewhere shorten words as well, simply
in other ways -- you can complain about "gas" in the US, but people
in the
UK are no better -- what they put in their cars is "petrol", not
"petroleum".


....there's less of an issue with abreviating the word 'petroleum' to the
word 'petrol' than with abreviating the word 'gasoline' to the word 'gas'
since, as far as I'm aware, petrol has no alternative meaning; gas, on the
other hand, does. Gas is a physical state of matter SPECIFICALLY different
from the state of liquid gasoline. If you are unable to see how the UK
abreviation is unambiguous whilst the US abreviation is comically ambiguous,
then I'm not suprised you are also unable to see any issue with 'dequeue'
and 'deque'.
In the end, I've yet to see a single shred of evidence linking the
readability of a program to the nationality of the programmer.

Getting back to the original subject, enque, deque and dequeue are all
perfectly reasonable terms. Your failure to understand them implies
no ambiguity in the terms themselves.


Your presumption that I'm unable to understand these terms is both incorrect
and presumptuous; I'm simply pointing out issues with nomenclature. Your
experience must be more limited than mine, since you obviously have never
come across different libraries that use alternative, conflicting
terminolgy.

Tim
Jul 19 '05 #14
Stewart Gordon wrote:
While it was 24/10/03 10:41 am throughout the UK, Tim Clacy sprinkled
little black dots on a white screen, and they fell thus:

<snip>
...'dequeue' is a particularly confusing choice of name; it stands
for Double-Ended Queue... but also means 'to remove from a queue'
when used as a verb.


Where in the world does "dequeue" mean deque?

Stewart.


....google and see for yourself
Jul 19 '05 #15
In article <3f*********************@news.dk.uu.net>,
no*******@nospamphaseone.nospamdk says...

[ ... ]
...ut goes without saying that the brain stands a better chance of building
a superior model of the problem if the problem is described in familiar
metaphors, using familiar language.
Things that go without saying are mostly indefensible assumptions.
English was not handed down from God on stone tablets. Every word is
made up, and virtually everything that gets said on this newsgroup
(among many other places) was thoroughly improper English at one time.
"Add", "Put" and "Push" have no inherent superiority over "enque".


...other than being real words.


You've clearly missed the _entire_ point.

[ ... ]
If you are unable to see how the UK abreviation is unambiguous
whilst the US abreviation is comically ambiguous,
Yes, I'm quite unable to see any such thing. Apparently you live in a
substantially different world than I do though -- in your world,
gasoline is the _only_ petroleum product on the planet, but where I
live, there is a veritable plethora of petroleum products.
then I'm not suprised you are also unable to see any issue with 'dequeue'
and 'deque'.
I never said I didn't see any issue with dequeue and deque. In fact, if
you had the reading skills required to graduate from grade school when I
was growing up, you'd understand that my original post said quite the
opposite!
Your presumption that I'm unable to understand these terms is both incorrect
and presumptuous;
Perhaps you would do well to go to a different newsgroup, such as one
where they discuss reasoning -- a statement like "Your
presumption...is...presumptuous" shows clear shortcomings in this area
at the present time.
I'm simply pointing out issues with nomenclature. Your
experience must be more limited than mine, since you obviously have never
come across different libraries that use alternative, conflicting
terminolgy.


You _must_ be right. Your logic is so thoroughly iron-clad that nothing
you say could possibly be presumptuous!

I have to admit that being accused of lack of experience is a welcome
change from the usual. The more common scenario is that some 20-
something type complains about how slowly his 3+ GHz machine boots, and
I foolishly mention the 20+ minutes it took to do a ground-zero dead
start on a CDC mainframe, or he complains about how many CD-ROMS a
program occupies, and I foolishly mention the time I just about cut my
own foot off after I dropped a large program (a box of Hollerith cards)
on my toe while I was having a gout attack!

--
Later,
Jerry.

The universe is a figment of its own imagination.
Jul 19 '05 #16
Jerry Coffin wrote:
In article <3f*********************@news.dk.uu.net>,
no*******@nospamphaseone.nospamdk says...

[ ... ]
...ut goes without saying that the brain stands a better chance of
building a superior model of the problem if the problem is described
in familiar metaphors, using familiar language.


Things that go without saying are mostly indefensible assumptions.
English was not handed down from God on stone tablets. Every word
is made up, and virtually everything that gets said on this
newsgroup (among many other places) was thoroughly improper English
at one time. "Add", "Put" and "Push" have no inherent superiority
over "enque".


...other than being real words.


You've clearly missed the _entire_ point.

[ ... ]
If you are unable to see how the UK abreviation is unambiguous
whilst the US abreviation is comically ambiguous,


Yes, I'm quite unable to see any such thing. Apparently you live in a
substantially different world than I do though -- in your world,
gasoline is the _only_ petroleum product on the planet, but where I
live, there is a veritable plethora of petroleum products.
then I'm not suprised you are also unable to see any issue with
'dequeue' and 'deque'.


I never said I didn't see any issue with dequeue and deque. In fact,
if
you had the reading skills required to graduate from grade school
when I
was growing up, you'd understand that my original post said quite the
opposite!
Your presumption that I'm unable to understand these terms is both
incorrect and presumptuous;


Perhaps you would do well to go to a different newsgroup, such as one
where they discuss reasoning -- a statement like "Your
presumption...is...presumptuous" shows clear shortcomings in this area
at the present time.
I'm simply pointing out issues with nomenclature. Your
experience must be more limited than mine, since you obviously have
never come across different libraries that use alternative,
conflicting terminolgy.


You _must_ be right. Your logic is so thoroughly iron-clad that
nothing
you say could possibly be presumptuous!

I have to admit that being accused of lack of experience is a welcome
change from the usual. The more common scenario is that some 20-
something type complains about how slowly his 3+ GHz machine boots,
and
I foolishly mention the 20+ minutes it took to do a ground-zero dead
start on a CDC mainframe, or he complains about how many CD-ROMS a
program occupies, and I foolishly mention the time I just about cut my
own foot off after I dropped a large program (a box of Hollerith
cards)
on my toe while I was having a gout attack!


Jerry,

There was a reply to my first post about deque/dequeue ambiguity from a
certain Stewart Gordon who refuted any issue with naming and openly refuted
the fact that 'dequeue' is used anywhere as an ADT; he's since gone quiet
and we've managed to get embroiled in minutiae. Back-tracking and re-reading
your posts, we're mostly singing from the same song-sheet.

Tim
Jul 19 '05 #17

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Hi all, I want to now your opinion on interface of my priority_queue. I now std has very good a priority_queue. But I couldn't use std. So I had to write my....
0
by: Rina0 | last post by:
Cybersecurity engineering is a specialized field that focuses on the design, development, and implementation of systems, processes, and technologies that protect against cyber threats and...
3
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 2 August 2023 starting at 18:00 UK time (6PM UTC+1) and finishing at about 19:15 (7.15PM) The start time is equivalent to 19:00 (7PM) in Central...
0
by: erikbower65 | last post by:
Using CodiumAI's pr-agent is simple and powerful. Follow these steps: 1. Install CodiumAI CLI: Ensure Node.js is installed, then run 'npm install -g codiumai' in the terminal. 2. Connect to...
0
by: erikbower65 | last post by:
Here's a concise step-by-step guide for manually installing IntelliJ IDEA: 1. Download: Visit the official JetBrains website and download the IntelliJ IDEA Community or Ultimate edition based on...
14
DJRhino1175
by: DJRhino1175 | last post by:
When I run this code I get an error, its Run-time error# 424 Object required...This is my first attempt at doing something like this. I test the entire code and it worked until I added this - If...
0
by: Rina0 | last post by:
I am looking for a Python code to find the longest common subsequence of two strings. I found this blog post that describes the length of longest common subsequence problem and provides a solution in...
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by: DJRhino | last post by:
Private Sub CboDrawingID_BeforeUpdate(Cancel As Integer) If = 310029923 Or 310030138 Or 310030152 Or 310030346 Or 310030348 Or _ 310030356 Or 310030359 Or 310030362 Or...
0
by: lllomh | last post by:
Define the method first this.state = { buttonBackgroundColor: 'green', isBlinking: false, // A new status is added to identify whether the button is blinking or not } autoStart=()=>{
0
by: lllomh | last post by:
How does React native implement an English player?

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