Google Firestore - How to get multiple documents by multiple IDs in one round trip?

I'm wondering if it's possible to get multiple documents by a list of IDs in one round trip (network call) to the Firestore database.

P粉536532781 2023-08-27 20:19:08 0  2  477

The creative journey of exploring particles.js begins

I'm using particles.js to deploy a simple personal website. Two questions: What is the difference between using particles.min.js and particles.js? There is no documentation on this, I've used both and there doesn't seem to be any difference. If I run entirely client side, can I use the particles.jso...

P粉786432579 2023-09-16 17:59:07 0  1  555

javascript - Is this better done with h5 or flash?

The red section on the way has to come out slowly from scratch. . What to do?

淡淡烟草味 2017-05-16 13:37:12 0  11  1216

Guys, please help me explain why I have so many red prompts.

Hey guys, new technical secondary school students are starting their journey, why are there so many red numbers here?

帆 2020-10-09 22:54:36 0  2  1469

The rewritten title is: MySQL query statements suitable for data cleaning

I have three tables. One table is the travel distance table createtableroutes(slatint,slngint,dlatint,dlngint,distanceint); one table is the site table createtablesites(idint,namevarchar(100),latint,lngint); and the other table is the technician table createtablefse(idint, namevarchar(100),latint,ln...

P粉413704245 2023-09-03 18:23:21 0  1  587

This year's journey from getting started to understanding PHP

At the beginning of this year, due to an epidemic, all New Year's plans were disrupted. Due to some previous reasons, I planned to start to further understand and learn website programming. After a long search process, I finally came to the PHP Chinese website by chance. Since then, I have started a...

李存平~认识我助力您健康人生 2020-11-25 14:50:16 0  3  1256

After I graduated, I learned PHP in my spare time. I taught myself all the time. Now I am looking for a job in this field. I am looking for guidance from my seniors on the direction of study and knowledge commonly used at work.

After I graduated, I learned PHP in my spare time. I taught myself all the time. Now I am looking for a job in this field. I am looking for guidance from my seniors on the common knowledge points and solutions for work. I also feel confused. Personal journey https://learnku.com/laravel/t /37812

人工智能君 2019-12-10 00:16:21 1  1  1536

python - How to add time or speed control when traversing a list?

{Code...} {Code...} There is such a weekend function to request some content, but some content will be missing every time it is executed. I suspect it is a problem with the network speed. How to limit the frequency of traversal or within a few seconds? What about one visit?

天蓬老师 2017-06-14 10:53:10 0  2  756

This last paragraph. What is it for?

defined('AUTH') or exit(' . Access is not allowed due to security reasons'); What is this point used for? I tried removing it and it doesn't seem to affect the running of the program. The only impact is that the text moves back one Tab key. Does this point represent the Tab key here?

没有输入昵称，请重新填写 2018-03-21 11:24:48 0  1  1114

php - Since foreach operates on a copy of the original array, why can it still change the original array when written like this?

The foreach loop uses a copy of the original array. Why can the original array be changed after reference assignment? {Code...} This section can prove that the foreach operation is a copy of the original array, and the original array was lost in half during synchronization. On the way, the internal ...

三叔 2017-06-22 11:53:30 0  4  1098

node.js - Solve the multi-layer nested relationship in nodejs

My final project is an e-commerce website, and the backend is implemented using node. All the code is written in the same js file, which is very inconvenient. The first is the code to connect to the database. In the callback function to connect to the database, define Schema and model. Then process ...

PHP中文网 2017-05-31 10:39:48 0  4  666

Vue 3: v-for shows more components than items

I'm new to Vue and trying it out. I'm still using Ionic and new to this too. I have my own component that I want to display for each trip instance obtained from the API: Woadie-Trips. From what I understand from the documentation, I can now use onMounted to set my data: import { IonContent, IonHeade...

P粉245276769 2023-07-28 17:56:59 0  1  565

I am planning to build a foreign paid download site. What payment methods can be integrated?

That is, the user recharges points online, and then downloads and deducts the points. Domestic Alipay and WeChat have many third-party services that provide visa-free services. Currently, we know of Paypal, but you need a corporate account to collect payments online. To obtain the payment status, I ...

俺老刘 2020-11-23 19:36:47 0  1  1245

My boyfriend is a PHP programmer

My boyfriend is a programmer who specializes in PHP development, so my PHP journey began slowly. It was difficult but beautiful. The story goes back four years ago. Four years ago, I just graduated from high school, so I left my hometown and came to Beijing alone in order to fulfill my dream of Engl...

天蓬老师 2017-11-03 09:51:13 4  13  2520

Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't wo...

P粉178132828 2023-09-05 11:18:47 0  1  854

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactNam...

P粉237125700 2023-09-05 14:46:42 0  1  741

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: ...

P粉212114661 2023-09-05 15:18:28 0  1  633

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

P粉076987386 2023-09-05 15:06:32 0  1  604

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in...

P粉369196603 2023-09-05 15:34:44 0  1  1020

How to get average of DATETIME column in MySQL while grouping by other columns

I'm creating and populating a MySQL table using the following query: SETtime_zone='+00:00';CREATETABLEtimestamp_n_datetime(idINT,timeDATETIME,avg_timeDATETIME);INSERTINTOtimestamp_n_datetime(id,time,avg_time)VALUES("1","2023-01-0310:

P粉460377540 2023-09-05 11:46:21 0  1  521