QuEST | accelerated simulator of quantum computers
kandi X-RAY | QuEST Summary
kandi X-RAY | QuEST Summary
QuEST has a simple interface, which is agnostic to its runtime environment, between CPUs, GPUs and over networks. Yet, it is flexible.
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QUESTION
I'm trying to convert my Observable of an Object with DocumentReferences to an Observable of my entire Object.
My Firestore query returns an Observable of QuestDocument, which looks as follows (stripped of primitive types):
ANSWER
Answered 2021-Jun-10 at 10:56You are not using the forkJoin operator correctly.
An observable that is complete will no longer emits data. Take it like a closed pipe.
ForkJoin will wait that all steams are completed (closed) before emitting one single data.
If you're fetching your data using this.afs.collection(...).doc(...).valueChanges(), these observables stay active. They will emit each time the data is updated in firestore.
To complete them, use a take(1) or first() (they will emit once then complete), or use combineLatest() to combine active streams and keep your data updated in real time (don't forget to unsubscribe onDestroy to prevent any memory leak).
Here's an example with completed streams:
QUESTION
I know this will be a long questing and I do apologize for it.
TL:TR I'm starting to learn Cypress and I stumbled upon a problem. I got a list which is higly dinamic (meaning that it can and it will have zero elements from time to time) and I want know its length to make some assertions. The thing is that when it has zero elements, Cypress is falling to get this DOM element. I have no idea how to assert if the array is empty before trying to .get() it. Any clue on how to do it? Thank you in advance!
The post
I want to follow this logic To check if an item was added to the list:
- Get array length, save it into a variable. (Need to learn how to)
- Add an item (this hasn't been of any problem)
- Get new array length, compare it. If new == old + 1, then it was added.
HTML5 (This code HAS an item into the list)
...ANSWER
Answered 2021-Jun-10 at 06:02I don't know what's happened to the footer and the #id-count, but don't use it. Count the elements yourself
QUESTION
Building a simple PyGame in which I need the player sprite to move and change image based on arrow key presses. I added the facing function in the Sprite1 class and call it in the if statements for key presses in the game loop hoping it would change image every time a key is pressed but it doesn't seem to want to update the sprite's image after key presses. Is the problem with my facing function? Or with something else?
...ANSWER
Answered 2021-Jun-10 at 01:57Every time you update the sprite, you reset its rectangle to the image's rectangle:
QUESTION
In my little game in a discord bot, this means I can't change user because it's given by the discord API, also the people who play the game enter commands in discord and don't execute the python file on their PC. I save the data of users in a json file and read the file to a dictionary when I need it. Now that I don't have to worry about KeyError when I try to read something from that dictionary, for example if I would try to read player_data[user_id]["quests"]["end"] but this wouldn't be defined, I call the function setup at the start of every command, which tests if the user's data is already saved:
ANSWER
Answered 2021-Jun-06 at 12:51It sounds like you want to initialise player_data[str(user.id)] every time when either the entry doesn't exist or when it's an empty dict.
If that's the case, I would suggest something like the following, using dict.get(), which returns None if the entry doesn't exist:
QUESTION
I realised hover tooltips in my html code by bellow mechanism:
html (Django temlates):
...ANSWER
Answered 2021-Jun-04 at 17:12One-sigarette decision is reject data-title -> content: attr(data-title)method.
Beeter is to use tiptool
Jquery on hover.
QUESTION
Am building a movies App where i have list of posters loaded using TMDB using infinite_scroll_pagination 3.0.1+1 library. First set of data loads good but after scrolling and before loading second set of data i get the following Exception.
...ANSWER
Answered 2021-May-30 at 10:18In Result object with ID 385687 you have a property backdrop_path being null. Adjust your Result object and make the property nullable:
String? backdropPath;
QUESTION
I have been trying to get the entire html text of this website.
It only returns the outermost content and all the inner main content of the website is not in it..
...ANSWER
Answered 2021-May-26 at 17:19The data is stored inside javascript variable on that page. To parse the data (and create pandas dataframe form it) you can use this example:
QUESTION
Good day. I got a huge issue that i can't resolve by myself for 3 days already. We have application that creates Json files and sending them to amazon s3 server through boto3 library. This app developed on python 3.8 and there was no issues. Then python has been upgraded to 3.9+ and issue popped up. We need to use threading in this app so we created a new class for it:
...ANSWER
Answered 2021-May-20 at 13:11I stumbled upon exactly the same problem, and it's not with BOTO3. MVE:
QUESTION
I want to be able to classify some events in R based on datetime criteria. I have two data sets the first one has the datetime and id of customer that have called a hotels corporate telephone line, and the other dataset has the datetime and customer id of all booking reservations for the same hotel.
Corporate line:
...ANSWER
Answered 2021-Apr-29 at 22:32For RESERV_NUM, as the customer can call on today to make a reservation on next month and call on tomorrow to make a reservation on this month, I simply ordered the RESERV_NUM by the DATE_OF_BOOKING in BOOKINGS.
QUESTION
I has a FieldInfo, but i don't know what type is this(one of many). I save it in PortDataFieldSpecial class:
ANSWER
Answered 2021-May-16 at 14:44The exception tells you the name of the type. It is Game.GameEvents.GameEventConfig.RewardSettings[], i.e., and array of RewardSettings where the type RewardSettings is nested inside GameEventConfig (therefore the + in the type name, but the plus sign is IL notation, not C# notation. Replace it by '.' in C#).
So, create an array of this type and cast the data to it.
You cannot use a Type object as type parameter for a generic type. Generics are resolved at compile time. You could use Reflection to create a generic object by resolving the type parameter at runtime; however, this is rarely useful, as from then on you will have to use Reflection to work with this object.
I think the best you can do with FieldInfo is to use it an if-else statement to branch to an appropriate case if the data you are (de-)serializing is not always of the same type. But I doubt it is.
Note that you can always debug your code. Set a breakpoint , e.g. on the line fieldArray.Add(otherNode.GetData()); and when the execution stops at this line, add the expression otherNode.GetData() to the Quick Watch Window. It will reveal you the type of the data.
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