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mongodb - how to write mergeObjects aggregation in spring mongo

I wrote a shell as below which works fine in mongo console, I am wondering how to write the Java code in spring mongo. I ... } } }, {$replaceRoot: { newRoot: "$mapData" } } ])...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - onclick hiding section running in a loop

Ok, I'm building an onepage website with javascript and tailwind css. All pages are in "display none" except the ... I click on the "selectvitrine" button, no loop is launched...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Is it correct to use Flink keyby with a large number of keys?

If there are 10 million orders, and 200,000 or more merchants. Now I need to count the number of orders for each ... value2) throws Exception { return value1 + value2; } });...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - Delete button on RecyclerView deletes the wrong item

I am using Firestore adapter for my RecyclerView and I am having trouble with the 'Delete' button. When I press it, it deletes the ... (); } }); } Here is my Firebase if it helps:...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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apache spark - Databricks ConvertToDelta - Parquet table to Delta - "AssertionError: assertion failed: File name collisions found"

sampleDf = spark.createDataFrame([(1, 'A', 2021, 1, 5),(1, 'B', 2021, 1, 6),(1, 'C', 2021, 1, 7),], ... of a 'convert to delta', then it works. Any inputs would help. Thanks....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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dropdown - Flutter How To change Api value in DropDownlist

hello guys i m new in flutter and i want set TextEditingController initial value outside build method ! can any one help me ... , "Gender": gender, "BirthDate": birthDate, }; }...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Font weight is ignored when setting font with attributes in Java

I am adding a text to an image file. I need more bold font weight, so I tried using TextAttribute to create a new font ... . It simply ignores it. How can I set the font weight?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to apply exclude for first resultant item of select_related() query in django

I am doing a left join using select_related() and then excluding few things based on condition using below code class ... item from select_related(). Any way to implement this?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Spring Boot + Activiti

I want to start a new Spring Boot + Activiti project using the Spring Initializr, but the Activiti dependency does not show up on the dependencies...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Why did the plotting drop down? (Seaborn, Python)

f, ax=plt.subplots(1,2, figsize=(10,6)) sns.barplot('Parch','Survived', data=data, ax=ax[0]) ax[0].set_title(' ... the second sns.plot separated to down, and what do I have to do?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Firebase Google Login doesn't work / Swift

I integrated everything like in the tutorial on YouTube but it doesn't work. When I tap on the Button it does nothing. ... the Button that only the G is visible and its round?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby - I'm trying to write conditionals for my program

I am running a program where I want the use to be able to select 1-28 and the program will print_details. However if the ... and if I type "a" it prints that last episode details....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android studio - Refraction Error and i am unable to extract Method error message

The selection does not cover a set of statements or an expression. Extend selection to a valid range. Widget build(BuildContext context) { return ... : 100.0, ), ), ], ), ), ); }...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - pyplot: define customised colormap for image plot which assigns a color to a certain value

What is the easiest way to display an array with only very few different values as an image plot, e.g. ... new array containing the appropriate rgb tuple for each original value?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ionic framework - Error using Angular shared Library across mulitple Icon apps

I have followed Building an Ionic Multiple App Project with Shared Angular Library to Share common angular library among ... Ionic App. However, the components doesn't work....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Mongoose change stream "hasNext()" behavior always is true

My problem is while the loop is never terminated. This my changeStream object: const changeStreamIterator = userModel.User. ... . after the above code, my code not resumed....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Only script apps may use password auth praw

I'm trying to make a Reddit reposter but every time I run the program it says "prawcore.exceptions.OAuthException: unauthorized_client ... -") return r any idea on how to fix it?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Access File from sharepoint list using Microsoft Graph

I am able to access list with this URL https://graph.microsoft.com/v1.0/sites/collaboration.sharepoint.com,acg7dc07 ... graph query for this."children" element is not working...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Linear Regression after k-means clustering

Goodmorning everyone, I'm stuck on a ml code, that's asking to apply linear regression on the clusters obtained on a certain ... set). I can't find any help around, any suggestion?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php - Find for each sub array in multidimensional array, if element on fixed position is highest value for this sub array

Hello all. For each sub array in $arr_rgb (Fig.01) I have to find: If element with $key number 1 is the highest number in this sub ... /td>"; } echo "</tr>"; } echo "</table>";...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to symbolicate for Xamarin.iOS on Windows

I submitted an iOS app which failed review due to a crash. I was given the crash report which unfortunately ... https://jmillerdev.com/symbolicating-ios-crash-files-xamarin-ios/...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - possible to make a loop pause waiting for activity inside it to finish?

Mighty all, I'm new to android and look for help or suggestions here. An idea I'm trying to implement is: ... before moving on ? Thank you for sharing your thoughts in advance!...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - i am using "ng-multiselect-dropdown" but when i select list selected values is shown in input side of dropdown

This is html of multiselect-dropdownList i am using "ng-multiselect-dropdown" but when i select list selected values is shown in ... )" > </ng-multiselect-dropdown> </div> </div>...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Is it possible for a key to have multiple names in a dictionary?

I'm not sure if this is even possible but it's worth a shot asking. I want to be able to access the value from indexing ... ['name1', 'name2'] : 'value1'} print(dict.get('name1))...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - can't install. pip install -r requirements.txt

The error message when running pip install -r requirements.txt: ERROR: Command errored out with exit status 1: ' ... .9Pillow' Check the logs for full com mand output....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Incorrect Nuget Reference to System.ComponentModel.Composition when I am adding System.Runtine 4.3.1

I am using Visual Studio Professional 2019 and when adding nuget package for System.Runtime 4.3.1 it automatically adds ... but didn't help. Any help would be highly appreciated....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Unity - 2D Aim at Mouse, while restricting min/max rotation and factoring in parent rotation

So, I have a ship with a "Hardpoint" attached to it that weapons can be placed on to. Once placed, they aim at ... for the last 90. Any ideas? Am I missing something very obvious?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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React native firebase messaging Notification

Is it possible to show options in firebase messaging Notification using react native,I'm able to send notifications, But how to add options?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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